Variable-tooth gear with sliding-sheet deforming teeth
First Claim
1. An infinitely meshing variable-tooth gear with sliding-sheet deforming teeth, characterized in that, it consists of a gear body and a plurality of sliding-sheets provided in the gear body;
- wherein the sliding-sheets can freely slide so as to form a tooth profile of any shape.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable-tooth gear with sliding-sheet deforming teeth pertains to the technical fields of gearing, and continuously variable mechanical transmissions. The variable-tooth gear is designed in accordance with “the principle of configuring variable-teeth through infinitely deforming sliding-sheets”. The working surface is composed of a large number of thin sliding-sheets (sliding-needles) superposed on one another. The meshing tooth profiles of arbitrary shapes can be configured by the free and infinite sliding of the sliding-sheets. Since the direction of sliding of the sliding-sheets is different from the direction of forces acting thereupon, the sliding-sheets can freely deform with the current tooth profiles. The direction of the force acting upon the sliding-sheet when transmitting power is perpendicular to the free-sliding direction, or the angle therebetween is within the equivalent friction angle, therefore the sliding-sheet possesses the self-locking property. The tooth profile thus remains unchanged when the sliding-sheets are under stress. All the sliding-sheets form an integrally closed elastic enclosure ring, possessing the effect of “rigidity and flexibility being combined, variable-tooth being fixed”. Therefore the load capacity is high, the transmission is a one-stage transmission and the transmission efficiency is high. There are only two key components, such that the structure is simple, the cost is low and the size is compact. This variable-tooth gear realizes, to the core, the concept of “continuously variable transmission via gear meshing”, and can be applied to vehicles or industrial fields of high speed and large power.
51 Citations
10 Claims
-
1. An infinitely meshing variable-tooth gear with sliding-sheet deforming teeth, characterized in that, it consists of a gear body and a plurality of sliding-sheets provided in the gear body;
- wherein the sliding-sheets can freely slide so as to form a tooth profile of any shape.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
2. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claim 1, characterized in that, at least one sliding-sheet holder is provided in the gear body of the variable-tooth, and the sliding-sheet holder is a support sliding-sheet holder or a fill sliding-sheet holder;
- and according to its arrangement manner, the sliding-sheet holder is classified into a spaced type or a continuous type, where the spaced type is constituted by the sliding-sheets being arranged at intervals, and the continuous type consists of alternately arranged support sliding-sheet holders and fill sliding-sheet holders;
said sliding-sheets are arranged in the sliding-sheet holders;
a sliding-sheet assembly is at least formed by a ring of sliding-sheet groups that are classified into the spaced type and the continuous type;
the ring of sliding-sheet groups consists of a plurality of sliding-sheet groups each being formed by a plurality of effect-equivalent sliding-sheets attached together;
rings of sliding-sheet groups comprise a spaced type ring of sliding-sheet groups, wherein each sliding-sheet group consists of sliding-sheets of the same type, and a continuous type ring of sliding-sheet groups, which is formed by combining alternately arranged sliding-sheets of different types, including “
the support sliding-sheet groups” and
“
the fill sliding-sheet groups”
;
the sliding-sheets comprise support sliding-sheets and fill sliding-sheets, respectively placed in support sliding-sheet holders and fill sliding-sheet holders disposed alternately, thereby constituting a complete ring of sliding-sheet groups having independent function, and the same variable-tooth gear having a plurality of rings of sliding-sheet groups is referred to as a multiple-ring variable-tooth gear;
the sliding-sheets can freely move within a certain range in the respective sliding-sheet holders, and the tooth profile of any shape can be formed by the free movement of the sliding-sheets;
the sliding trajectory of the sliding-sheets can be classified into a type of returning in a same direction and a type of returning in an oblique direction;
can be classified into a spur sliding-sheet type and a bevel sliding-sheet type, according to the arrangement orientation of the sliding-sheets;
can be classified into an outside support type, an outside interaction crossing support type, a central support type, a central interaction crossing support type, an outside and central double support type, and an outside and central interaction crossing support type, according to the embedding and inserting manner of the sliding-sheets into the gear body and the manner of the gear body with respect to position, support and stop of the sliding-sheets;
can be classified into returning types via gravity, attraction force, repellent force, elastic force, spring force, electromagnetic force, centrifugal force, inertial force, hydraulic pressure, gas pressure, flow impact force from gas and liquid, etc., according to the types and forms of the returning driving forces acting on the sliding-sheets; and
can be classified into free returning sliding-sheets and passive returning sliding-sheets;
the constraining device for the sliding-sheets is stop legs (25) for the sliding-sheets or is an outer constraining ring (23), wherein there can be one or two stop legs for the sliding-sheet;
the stop leg for a sliding-sheet is of a convex type or a concave type, alternatively, a constraining ring, string or rod can be inserted through a hole which is punched in a sliding-sheet to carry out constraining;
the variable-tooth gear can be classified into a spaced type variable-tooth gear and a continuous type variable-tooth gear according to the arrangement of sliding-sheet groups in a ring of sliding-sheet groups;
can be classified into a single-ring variable-tooth gear and a multiple-ring variable-tooth gear according to the number of the rings of sliding-sheet groups contained in one single gear;
can be classified into a variable-tooth gear of a returning in a same direction type and a returning in an oblique direction type according to the sliding trajectories of the sliding-sheets;
can be classified into a spur sliding-sheet variable-tooth gear and a bevel sliding-sheet variable-tooth gear according to the properties of the profiles of the sliding-sheet meshing teeth; and
can be classified into a combination type, a layered combination type and a single-piece type according to the structure of the gear body;
said infinitely meshing variable-tooth gear with sliding-sheet deforming teeth is a variable-tooth cylindrical gear configured by superposing two halves, each half consisting of restraining wall surfaces for support sliding-sheets and fill sliding-sheets, positioning and supporting stop bosses, centrifuge-restraining wall surfaces for sliding-sheets, sliding-sheet retracting seat restraining surfaces, and a superposing surface of a wheel and a disc, etc. the two halves constituting a complete gear body when superposed to each other, and the sliding-sheet restraining wall surfaces, the positioning and supporting stop bosses, the centrifuge-restraining wall surfaces for sliding-sheets, and the sliding-sheet retracting seat restraining surfaces being superposed so as to form a ring of sliding-sheet holders;
alternatively, said infinitely meshing variable-tooth gear with sliding-sheet deforming teeth is a variable-tooth conic gear configured by a variable-tooth conic gear body (39) and an assistant wheel body (I), two rings of sliding-sheet groups being symmetrically arranged on both sides of the variable-tooth conic gear body (39), with the ring of sliding-sheet groups being composed of the sliding-sheets specialized for the variable-tooth conic gear, each of the two sides of the variable-tooth conic gear and one assistant wheel body (I) in combination forming a ring of sliding-sheet holders, in which a ring of sliding-sheet groups is disposed;
or, the variable-tooth conic gear is composed of a variable-tooth conic gear body of a vane wheel shape and an assistant wheel body (II), the sliding-sheets employing sliding-sheets of the type in which both sides integrally operate;
or, the variable-tooth conic gear can be dispensed with one of its two symmetric halves to form a variable-tooth conic gear of a single-ring bevel type;
alternatively, said infinitely meshing variable-tooth gear with sliding-sheet deforming teeth is a multiple-ring variable-tooth conic gear comprising a multiple-ring variable-tooth gear (62), a wheel basic body (63) and a sliding-sheet assembly;
the sliding-sheet assembly is a sliding-sheet assembly of a multiple-ring spaced type, with all sliding-sheets being the single and same type of sliding-sheets specialized for the variable-tooth conic gear, the sliding-sheets of the same type being arranged at intervals to form a ring of sliding-sheet groups, a plurality of rings of sliding-sheet groups of different radii constituting the whole sliding-sheet assembly of a multiple-ring spaced type;
wherein the sliding-sheets can be regularly arranged or arranged in a staggered manner;
alternatively, the multiple-ring variable-tooth conic gear is of a structure of a layered combination type, being composed by combining a plurality of layered wheel bodies and a wheel base body (II);
the layered wheel bodies can be classified into the wheel body specialized for the sliding-sheets with two stop legs and the wheel body specialized for the sliding-sheets with one stop leg;
alternatively, the multiple-ring variable-tooth conic gear is of a one-piece structure, installation holes (72) for embedding the sliding-sheet holders are trepanned at the positions of its working surfaces corresponding to the arrangement locations of the sliding-sheet groups, the sliding-sheet groups are fitted in groups into each separate free sliding-sheet holder (71), the free sliding-sheet holders (71) are fitted into the installation holes (72) for embedding the sliding-sheet holders, either by means of interference fitting, thermal fitting or weld fitting;
or by means of thread fitting, the screw coupling surfaces of the sliding-sheet holders (71) and the installation holes (72) are threaded surface;
the installation holes (72) can be quadrate holes or circular holes;
or by means of clearance fitting, the returning trajectories of the sliding-sheets can be a type of “
returning in a same direction”
or a type of “
returning in an oblique direction”
;
alternatively, the multiple-ring variable-tooth conic gear can employ a principle of arranging the wide and narrow sliding-sheets in a staggered manner so as to densely arrange the sliding-sheets throughout the disc;
the variable-tooth conic gear of a small taper can be classified into a parted type structure and a one-piece type structure, comprising a continuous type, wherein the sliding-sheet groups are superposed without gap therebetween and the rings of sliding-sheet groups are composed by alternatively arranging the same type of sliding-sheet groups at intervals; and
a spaced type, wherein there are gaps between the sliding-sheet groups and the rings of sliding-sheet groups contain sliding-sheet groups of the same type;
“
a staggered relaying”
manner or a non-staggered manner can be employed to arrange the sliding-sheets;
or the variable-tooth conic gear of a small taper takes a structure of “
one-piece multiple-ring variable-tooth gear”
, installation holes for embedding the sliding-sheet holders are trepanned at the positions of its working surfaces corresponding to the arrangement locations of sliding-sheet groups, the sliding-sheet groups are fitted in groups into each separate free sliding-sheet holder, and the free sliding-sheet holders are fitted into the installation holes for embedding the sliding-sheet holders;
a variable-tooth flat disc gear of the type of returning in an oblique direction is composed by a variable-tooth gear body of the type of returning in an oblique direction, and an assistant flat disc wheel body of the type of returning in an oblique direction;
the returning trajectories of the sliding-sheets are arranged to form an angle with the direction of the returning forces;
a variable-tooth inner conic disc gear of the type of returning in an oblique direction is composed by a variable-tooth gear body of the type of returning in an oblique direction and an assistant inner conic wheel body of the type of returning in an oblique direction;
the returning trajectories of the sliding-sheets are arranged to form an angle with the direction of the returning forces;
a single-ring sliding-sheet wheel of the type returning via elastic force;
through channels are made on the flat disc to form a single-ring sliding-sheet holder ring into which sliding-sheets are disposed;
a multiple-ring sliding-sheet wheel of the type returning via elastic force;
through channels are made on the flat disc to form multiple-ring sliding-sheet holder rings into which sliding-sheets are disposed;
a multiple-ring sliding-sheet conic wheel of the type returning via elastic force;
through channels are made on the double-sided conic disc to form multiple-ring sliding-sheet holder rings into which sliding-sheets or sliding-needles are disposed;
the arrangement of the sliding-sheet holders can be a normal type and a staggered relaying type;
alternatively;
sliding-needles are disposed in the sliding-sheet holders (may also referred to as sliding-needle holders) which can be rectangular, circular or sector in shape;
the constraining wall surfaces and the positioning and supporting stop bosses of all the variable-tooth gears and the sliding-sheet wheel bodies are of an outside support type, an outside interaction crossing support type, a central support type, a central interaction crossing support type, an outside and central double support type, or an outside and central interaction crossing support type.
- and according to its arrangement manner, the sliding-sheet holder is classified into a spaced type or a continuous type, where the spaced type is constituted by the sliding-sheets being arranged at intervals, and the continuous type consists of alternately arranged support sliding-sheet holders and fill sliding-sheet holders;
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3. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claim 1, characterized in that, a sliding-sheet variable-tooth gear can mesh with a disc having convex teeth and concave grooves for meshing and a tooth-and-groove bench to implement infinitely meshing transmission and realize continuously variable shifting and continuously clutching, so as to manufacture a CVT and a sliding-sheet clutch;
-
its key components include an infinitely meshing variable-tooth gear with sliding-sheets, a tooth-and-groove wheel and a tooth-and-groove meshing ring, a CVT with a variable-tooth cylindrical gear;
the input shaft is coupled to the tooth-and-groove wheel, the variable-tooth gear is coupled to an output shaft via guiding splines or splines, the variable-tooth gear can freely move in the axial direction while transmitting torques, thereby continuously varying the meshing radius with the tooth-and-groove wheel to perform continuously variable transmission;
an electromagnet or a permanent magnet can be provided on the tooth-and-groove wheel disc or at a place corresponding thereto so as to induce magnetic forces onto the sliding-sheets to make them return, or a permanent magnet or an electromagnet can be provided inside the variable-tooth gear, all sliding-sheets are permanently magnetized or electro-magnetized so as to be moved outwards via repellent forces to implement returning;
alternatively, returning can be performed via the magnetic induction interactions between the magnetic field and the inducing current induced by the movement of sliding-sheets in the magnetic field (or alternate electromagnet field);
alternatively, the generation device which generates the returning driving forces for sliding-sheets can be stationary and does not participate in motion, the electromagnet itself can be stationary and does not follow the tooth-and-groove disc to move, the sliding-sheets can be attracted to return by magnetic induction;
(as for returning via electromagnetic forces) the design radial dimension of free centrifugal returning at the state of sliding-sheets separating from the gear wheel can be larger than, equal to, or smaller than the returning radial dimension when meshing with the tooth-and-groove wheel;
a central recess (9) can be provided at the center of the tooth-and-groove wheel;
the distance between the grooves of the tooth-and-groove wheel can be or can not be a multiple of the distance between the sliding-sheet groups;
a lubricant hole (or a lubricant slit) can be provided on the wheel body, the inside of the wheel body can also be designed as a structure of a centrifugal pump, a friction traction ring (22) can be provided at the outer edge of the variable-tooth gear, the friction traction ring can be made of elastic materials such as rubber;
an non-closed outer constraining ring for sliding-sheets (23) can be disposed on the outer circumference of the variable-tooth gear, an arc-shaped transition guiding zone (24) can be designed in the direction that faces the sliding-sheets'"'"' rotations into the constraining ring so as to improve the operation reliability, now the sliding-sheets can be dispensed with the stop legs, the sliding-sheets can also be replaced by sliding-needles;
alternatively, a stress-suppressing pad layer (26) can be attached to the bottom of the concave grooves of the tooth-and-groove disc, which pad is generally made of elastic and soft filling materials, such as spray coating rubber materials, etc.;
a multiple-shift speed transmission with a variable-tooth cylindrical gear, characterized in that, the tooth-and-groove disc is of the type specialized for stepped transmission, after the pattern of teeth and grooves are optimized for each segment and for each step, the distribution of the tooth profiles of the tooth-and-groove disc is made regular, shuttle-shaped teeth can be staggered or uniformly arranged in the radial direction;
or a shuttle-shaped gear (30) can replace the sliding-sheet variable-tooth gear to implement meshing transmission via fixed meshing teeth with a shuttle-shaped toothed disc (31);
a constant mesh multiple-speed transmission comprises a concentric toothed disc with multiple cones (32), transmission shaft (33), conic gear (34), a reverse-shifting gear (35), the concentric toothed disc with multiple cones (32) is configured by concentrically arranging a plurality of conic gears of different radii, the conic gear at each radius has its respective conic gear which keeps constant mesh therewith, a synchronous meshing shifting manner containing a synchronizer locking ring and a coupling sleeve, or an electronically or hydraulically controlled clutch, or the shifting device of the sliding-sheet clutch in this patent is employed by the conic gear and its respective transmission shaft to implement stepped or automatic speed shifting;
alternatively, in a combination design of multiple-phase sets a parallel coupling can be employed to increase power, or a series coupling can be employed to increase transmission ratio;
the multiple-phase variable-tooth gear arranged in the manner of parallel coupling can be distributed according to the progressive differential principle;
the two sides of the sliding-sheet variable-tooth gear can mesh with the tooth-and-groove disc so as to output power in shunt;
or a type with a single tooth-and-groove disc and transmitting at both sides of the variable-tooth gear can be employed;
a CVT with variable-tooth conic gear;
its key components include conic disc tooth-and-groove wheels (42) and a variable-tooth conic gear (43) and the like;
other components include a shifting lever (44), a sun gear (45), a planet gear (46), an output shaft is fixedly coupled to the conic disc tooth-and-groove wheel to introduce power flow, two conic disc tooth-and-groove wheels are symmetrically disposed to sandwich a double-ring variable-tooth conic gear therebetween, the two conic disc tooth-and-groove wheels mesh with the double rings of the sliding-sheets of the variable-tooth conic gear, respectively, so as to implement meshing transmission to output power;
the variable-tooth conic gear and the planet gear 46 are concentrically fixedly coupled, and are coupled to a planet bracket via a rotary pair, the rotary axis of the planet bracket is concentric with the sun gear and the output shaft, the planet gear meshes with the sun gear, and the sun gear is fixedly coupled to the output shaft;
alternatively;
the conic tooth-and-groove wheels serve as “
a shifting and displacing wheel”
fixedly coupled to the planet gear;
alternatively;
the shifting assistant mechanism can be of other types;
alternatively;
the variable-tooth conic gear is replaced with a variable-tooth flat disc gear of the oblique returning type, the conic disc tooth-and-groove wheels are replaced with flat disc tooth-and-groove wheels;
the meshing type therebetween can be of an inner meshing type or an outer meshing type;
the pressing force between the tooth-ant-groove wheels and the variable-tooth gear can be very small or even nil;
or the tooth-and-groove wheels and the variable-tooth gear do not contact with each other, with spacing therebetween, and the meshing transmission is completely implemented by returning sliding-sheets;
alternatively;
a structure of a single conic disc tooth-and-groove wheel and a single-ring variable-tooth conic gear, or an arrangement of “
two variable-tooth conic gears sandwiching the double-sided conic disc tooth-and-groove wheels in the opposite directions”
can be employed to perform transmission;
a planet conic disc variable-tooth gear CVT;
the conic disc tooth-and-groove wheel (42) serves as a sun gear, with a plurality of variable-tooth conic gears arranged on its circumference as planet gears, the outer sides thereof mesh with a large tooth-and-groove wheel of an inner meshing type (48), so as to constitute a transmission structure of a planet conic disc type;
in addition, an inner meshing single-stage transmission can also be employed, with the variable-tooth conic gear (43) meshing with the large tooth-and-groove wheel of the inner meshing type (48);
the shifting and transmission structure of the variable-tooth gear can be;
a variable-tooth conic gear meshing with a tooth-and-groove wheel of an inner meshing type to implement transmission;
a variable-tooth conic gear meshing with a tooth-and-groove wheel of an outer meshing type to implement transmission;
an oblique returning variable-tooth gear of a flat disc type meshing with a tooth-and-groove wheel of an outer meshing type to implement transmission;
an oblique returning variable-tooth gear of an inner conic disc type meshing with a tooth-and-groove wheel of an outer meshing type to implement transmission;
a tooth-and-groove wheel of a flat disc type meshing with a variable-tooth conic gear;
a variable-tooth conic gear with a small taper meshing with a tooth-and-groove wheel of an outer meshing type to implement transmission, wherein;
B in the meshing manner of the variable-tooth conic gear with the tooth-and-groove wheel, the meshing curvature and orientation match;
a conic disc tooth-and-groove wheel with a small taper meshing with a variable-tooth conic gear;
wherein the conic disc tooth-and-groove wheel with a small taper is a hollow tooth-and-groove wheel having meshing teeth and grooves on the inner and outer conic surfaces, and can mesh in the inner side with the variable-tooth conic gear or mesh in the outer side with the variable-tooth conic gear;
a multiple-disc type transmission;
by alternatively superposing a plurality of variable-tooth conic gears with large tapers and the tooth-and-groove wheels of large tapers, their meshing points can be designed in accordance with the progressive differential principle;
alternatively;
the generation device which generates the returning driving forces for sliding-sheets can be stationary and does not participate in motion, for example;
the electromagnet itself can be stationary and does not follow the tooth-and-groove disc to move, and the sliding-sheets can be attracted to return by magnetic induction;
a belt type CVT with a multiple-ring variable-tooth conic gear;
being composed of two pairs of multiple-ring variable-tooth conic gears, the rotational shafts of which are parallel, with sandwiching a driving belt, the distance between the convex and concave meshing grooves of the driving belt and the distance between the sliding-sheet groups can be designed in accordance with “
the progressive differential principle”
;
a belt CVT of returning via elastic nipping force type;
the sliding-sheet holders are formed by making through channels on the double-sided conic disc, a multiple-ring sliding-sheet conic wheel of returning via an elastic force type is formed by placing the sliding-sheets or sliding needles into the holders, these holders are arranged by disposing, according to the principle of the convex and concave portions opposing each other, two belts with opposing teeth and grooves arranged on the two working side surfaces thereof, in the way that the driving belts'"'"' convex teeth and concave grooves are opposed to each other, the sliding-sheets are urged to slide transversely, and therefore implement returning via elastic forces, so as to implement the meshing transmission of the conic wheel and the belt;
the overall layout of the conic wheel and the driving belts;
the two driving belts are stretched by the two set of sliding-sheet conic wheel assemblies, the rotation shaft of which are parallel, to implement power transmission, each set of sliding-sheet conic wheel assembly comprises a double-sided conic disc, two support conic discs, and the driving belt consists of two clipping tooth-and-groove belts with convex teeth and concave grooves arranged on the working side surfaces thereof;
a wheel CVT of returning via elastic nipping force type;
consists of a pair of conic disc tooth-and-groove wheels and a single-ring sliding-sheet wheel of returning via elastic force type sandwiched by the opposing convex teeth and concave grooves of the conic disc tooth-and-groove wheels, the single-ring sliding-sheet wheel of returning via elastic force type comprises a sliding-sheet wheel body for translations, fill sliding-sheets of returning via elastic force type and support sliding-sheets of returning via elastic force type; and
it can be classified into an inner meshing type and an outer meshing type;
a transmission in which the flat disc type tooth-and-groove wheel oppositely clips sliding-sheets of returning via elastic force type;
comprises a pair of flat disc tooth-and-groove wheels and a single-ring sliding-sheet wheel of returning via elastic force type, with the single-ring sliding-sheet wheel being sandwiched by the opposing convex teeth and concave grooves;
transmissions of a small taper variable-tooth conic gear series;
the input variable-tooth conic gear and the output variable-tooth conic gear are arranged conversely, the two variable-tooth conic gears are coupled by an inner meshing cylindrical tooth-and-groove ring with meshing teeth and grooves on the inner surface to implement continuously variable shifting;
or, the two variable-tooth conic gears are coupled by a conic tooth-and-groove ring with meshing teeth and grooves on both the inner and outer surfaces to implement continuously variable shifting;
or;
the two variable-tooth conic gears are coupled by an inner meshing cylindrical tooth-and-groove ring with meshing teeth and grooves on both the inner and the outer surfaces to implement continuously variable shifting;
alternatively;
the input variable-tooth conic gear and the output variable-tooth conic gear are arranged in the same direction, the type of an intermediate member can implement transmission via a rigid conic toothed ring of inner meshing type, and can also implement transmission via a flexible belt, for example, via meshing of the driving belt with meshing teeth and grooves on the inner surface thereof with the two variable-tooth conic gears to implement transmission;
alternatively;
a one-stage direct transmission type can be employed, which is a type without any intermediate member;
transmission is performed via directly meshing of the variable-tooth conic gear having a small taper with the rigid tooth-and-groove ring;
a variable-tooth rotary shaft roller gear CVT comprises;
key components;
a variable-tooth cylindrical gear, a rotary shaft roller wheel; and
assistant components;
a fixing bracket, a revolution bracket, a planet conic gear, a sun conic gear and the related components;
the variable-tooth cylindrical gear is coupled to the output shaft, and is fitted on the fixing bracket;
the rotary shaft roller wheel and the planet conic wheel (116) are coupled to the output shaft (33), and are fitted on the rotatable bracket, the planet conic wheel (116) meshes with the sun conic gear (117), the sun conic gear is coupled to the input shaft;
as the shifting lever (44) is turned, the whole revolution bracket will rotate around the axis of the input shaft, at which time the planet conic gear rotates around the sun conic gear, but the meshing state therebetween can be always maintained so as to transmit the torque of the input shaft to the rotary shaft roller wheel, due to the rotations of the revolution bracket, the angle between the rotation axes of the rotary shaft roller wheel and the variable-tooth cylindrical gear is changed, so that the transmission ratio varies;
alternatively;
a rotary shaft roller wheel of the type in which the density of the rollers can be changed can be employed, the density/number of the rollers can be changed according to changes of the transmission ratio, all rollers come into operation at high speeds, and the number of rollers that operate at low speeds is reduced to half of the total number;
the roller wheel with variable density is configured by interposing two halves with sparse rollers, when it is required that the roller wheel has denser rollers, the two half roller wheels can be interposed so as to double the roller density, and the density will be reduced to one half if the two halves are separated;
alternatively;
multiple-phase mechanisms can be arranged in parallel, wherein two variable-tooth cylindrical gears are employed at an upper position and a lower position to mesh with the rotary shaft roller wheel, so as to double power;
an arrangement can also be employed where two rotary shaft roller wheels are provided respectively at an upper position and a lower position of the variable-tooth cylindrical gear to mesh therewith;
alternatively;
a multiple-phase layout can be employed, wherein a plurality of rotary shaft roller wheels is provided along the circumferential direction of the variable-tooth cylindrical gear to mesh therewith;
or;
a plurality of variable-tooth cylindrical gears is provided along the circumferential direction of the rotary shaft roller wheel to mesh therewith;
the rollers of the rotary shaft roller wheel can take a conic shape, and the performance of continuously variable transmission is basically improved by using of the self-locking property;
its working surface can also be made to be an arc shape;
alternatively;
the rotary shaft roller wheel can be replaced with a gear, a bevel gear, a worm wheel or a worm to mesh with the sliding-sheets of the variable-tooth cylindrical gear, the variable-tooth cylindrical gear can also be replaced with a variable-tooth conic gear;
alternatively;
a transmission in which the rotation shaft of the rotary shaft roller wheel is fixed and the rotation shaft of the variable-tooth cylindrical gear can rotate is employed;
a variable-tooth CVT with a radius-varying metal block belt;
comprises a metal block belt wheel, the radius of which belt is continuously variable, and a variable-tooth cylindrical gear;
continuously variable shifting is realized by changing the radius spanned by the metal blocks of the metal block belt wheel and making them mesh with the variable-tooth gear;
the metal block belt wheel, the radius of which belt is continuously variable, is composed by two opposing conic discs sandwiching a metal block belt therebetween, the metal block belt is a flexible convex-concave tooth block belt (also referred to as a chain of tooth blocks) consisting of alternately superposing several convex tooth blocks (119) and concave tooth blocks (120) coupled by a tooth block coupling string (118) running therethrough, the radius of the metal block belt on the conic disc can be changed as the distance of the two opposing conic discs changes, so as to implement continuously variable radius;
alternatively;
in order to improve the unity of the metal block belt wheel, the conic surface of the conic discs can be provided with convex-concave grooves so as to mesh with the flexible metal block belt to form a stable unity, at which time the side wall of this metal block belt is of a sliding-sheet belt structure;
or elastic force and spring force, etc. can be employed to return the sliding-sheets and make them mesh;
in addition, the conic disc can also be replaced with a multiple-ring variable-tooth conic gear, the meshing surface is formed by alternately superposing the convex and concave tooth blocks of the metal block belt so as to mesh with the sliding-sheets of the variable-tooth conic gear, or in order to facilitate shifting via sliding in the radial direction, idler wheels (141) can be provided on the side walls of the metal blocks;
alternatively;
the metal block belt can also be replaced by a rubber belt with grooves on the outer side and on both the side walls;
a transmission assembly being capable of working continuously can be formed by symmetrically arranging two metal block belt wheels, with each wheel meshing with one variable-tooth cylindrical gear, and a continuous output of power flow is realized by alternate complement meshing of two variable-tooth cylindrical gears and two metal block belt wheels;
a metal block belt wheel with continuously varying radius can be of an inner stretching type, in which the stretching device is located inside of the wheel body, or of an outside stretching type, in which the stretching device is located outside of the wheel body, and the stretching string and stretching device thereof can be arranged sideward;
alternatively;
a gear with a fixed number of teeth can be substituted for the variable-tooth gear to mesh with the metal block belt so as to implement continuously variable shifting;
a variable-tooth gear CVT with radius-varying tooth segments;
comprises a toothed ring assembly capable of changing radius continuously, and a variable-tooth cylindrical gear, etc, where continuously variable shifting is realized by changing the radius spanned by the toothed ring and making it mesh with the variable-tooth gear;
the toothed ring capable of changing radius continuously is formed by combining several tooth segments, each of which is coupled to the radial sliding rail via a translation pair, to assure the continuity of the working tooth surfaces of the toothed ring, at least two sets of toothed rings are alternately arranged in a staggered manner to form a toothed ring assembly, each set meshing with a variable-tooth cylindrical gear, respectively, or meshing with different rings of sliding-sheet groups of a double-ring variable-tooth cylindrical gear, so as to form a CVT assembly capable of independently performing a work cycle, a continuous output of power flow is thus realized by alternate complement meshing of two variable-tooth cylindrical gears and two toothed rings;
alternatively;
the combination of the two sets of toothed rings can be replaced with a single-toothed ring formed by the step tooth segments (125) being alternately interposed;
the meshing manner of the variable-tooth gear and the radius-varying toothed ring can take an inner meshing type and an outer meshing type;
a transmission mechanism of an inner meshing planet type;
variable-tooth gears mesh with a large toothed ring composed of a plurality of tooth segments from inside, the variable-tooth gears and gears (a) are coaxially fixedly coupled, the gears a and gears b mesh with each other, gears (b) in turn mesh with a sun gear, the rotation shafts of gears (a), gears (b) and the sun gear (45) are coupled in a triangular shape via a planet bracket (50), the distances of the shafts of the gears (a) and gears (b) are fixed, the distances of the shafts of the gears (b) and the sun gear (45) is fixed, and the gears (a) and the sun gear (45) are coupled by a coupling body (142) in such a way that the distance between their shafts can be continuously adjusted;
during speed adjusting, the radius of the toothed ring assembly is changed and the distance between the shafts of gears (a) and the sun gear (45) is synchronically changed so as to implement shifting;
generally, “
the sun gear and the planet bracket”
serve as input and output transmission terminals;
alternatively;
the tooth segments can employ non-involution tooth profiles;
the variable-tooth gear can employ “
transmission by sliding-sheets with bevel teeth”
;
alternatively;
a single-ring variable-tooth cylindrical gear having wider sliding-sheets can also be employed to replace the set of two variable-tooth cylindrical gears or the double-ring variable-tooth cylindrical gear;
a sliding-sheet clutch of an axial coupling type;
generally comprises teeth and grooves of two tooth-and-groove disc surfaces oppositely clipping a sliding-sheet wobble-plate;
a shifting transmission with a constant mesh sliding-sheet type gear;
comprises a constant mesh gear with a tooth-and-groove disc on a side wall, a shifting lever, a thrust bearing, oppositely clipping grooved disc for returning via elastic force, positioning and coupling pins, a sliding-sheet wobble-plate and bolts;
the transmission shaft is coupled to the wobble-plate via a guiding spline, the sliding-sheet wobble-plate is divided into two halves to be coupled by a bolt into a whole, each half wobble-plate is provided with a ring of sliding-sheet groups which functions independently, the two rings of sliding-sheet groups are clipped by a pair of tooth-and-groove discs with opposing teeth and grooves, respectively, the pair of opposite clipping tooth-and-groove discs refer to a mobile tooth-and-groove disc (129), and the sidewall tooth-and-groove disc surface of the constant mesh gear (127), both being coupled by the positioning and coupling pin (130) to assure synchronous rotations, but they can move axially with respect to each other;
the engagement between the two constant mesh gears (127) and the transmission shaft is via a bearing joint, the shifting push lever (128) is coupled to the two mobile tooth-and-groove discs (129) via the thrusting bearing, respectively;
alternatively;
the returning manner of such sliding-sheets can employ “
an electromagnetic driving manner”
;
or;
the sliding-sheets used in the sliding-sheet wobble-plate can be the sliding-sheets of a segment shape in section or sliding-needles;
or the design of alternative and dense arrangement of the fill sliding-sheet groups and the support sliding-sheets;
a sliding-sheet clutch of a radial coupling type;
comprises a coupling sleeve (133) with teeth and grooves on the inner loop, and a sliding-sheet grooved wheel (134), the upper portion of such a sliding-sheet is in the form of an arc, allowing for a natural transition when being inserted;
after being inserted, the coupling sleeve and the sliding-sheet grooved wheel can perform infinitely meshing;
the design can also be employed thus that the fill sliding-sheet groups and the support sliding-sheet groups are disposed alternately and densely;
a sliding-sheet clutch of a conic surface coupling type;
comprises a sliding-sheet conic disc (135) and a coupling sleeve (136) for a tooth-and-groove conic disc;
after the sliding-sheet conic disc is coupled to the coupling sleeve for a tooth-and-groove conic disc, the sliding-sheets return under the effect of centrifugal forces and mesh with the tooth-and-groove conic disc so as to implement the engagement of the clutch;
an overrunning clutch of a sliding-sheet type;
comprises sliding-sheets, a sliding-sheet grooved wheel (134), and a planet wheel outer loop (140);
in operation, the planet wheel outer loop (140) rotates in a reciprocating manner, the sliding-sheets return under the effect of centrifugal force and so mesh with the single-direction teeth and grooves of the planet wheel outer loop, so as to transmit the torque to the sliding-sheet grooved wheel (134) and rotate it, in addition, the oil lubrication via a centrifugal pump can be employed;
alternatively;
the sliding-sheets and the blocking grooves can take a radiating form, the cross sections of the sliding-sheets can be of a segment shape;
the type in which the sliding-sheets are densely arranged throughout the ring can be employed;
or a spaced type can be employed;
in such a mechanism, the sliding-sheets are constrained by the planet wheel outer loop, therefore the sliding-sheets do not need stop legs;
alternatively;
the “
progressive differential principle”
can be considered when the distances and the number of the single-direction teeth and grooves of the planet wheel and the sliding-sheet tooth-and-groove wheel are designed as a whole;
the load capacity can be improved by increasing the width and the thickness of the sliding-sheets of the clutch;
“
the self-locking property”
can be utilized to design the teeth and grooves of the planet wheel outer loop to improve the performance of infinitely meshing and the like;
alternatively;
a Mode A transmission comprises a Mode A main wheel body (I), a Mode A main wheel body (II), a Mode A assistant wheel body, Mode A support sliding-sheets, and Mode A sliding-sheets and the like;
alternatively;
a Mode B transmission comprises a Mode B main wheel body, a Mode B assistant wheel body, Mode B sliding-sheets, a nut fork, and a speed adjustment guiding sleeve;
a CVT of a type in which steel needles and steel sheets mesh, the infinitely meshing is implemented by interposing the steel needles (211) and steel sheets (212) into each other;
the steel needles (211) are disposed throughout the inner side of the belt, and the transversely arranged steel sheets are disposed throughout the outer side of the wheel, the infinitely meshing is implemented by interposing the steel needles and steel sheets into each other;
an infinitely meshing transmission with fluid deformable at a fixed volume, its infinitely meshing device unit is a deformable meshing unit (213) which is closely filled with fluid and has a fixed volume, the infinitely meshing is implemented by meshing with the inner teeth of the driving belt (151) through the deformable property of the fluid at a constant volume, or such fluid is “
a magnetorheological fluid”
;
a CVT of an operation separated and effect combined type, characterized in that;
two pairs of conic discs sandwich therebetween a driving belt with convex and concave meshing teeth on the inner side;
a number of infinitely meshing device units that can perform infinitely changing radius in synchronization with the driving belt are coaxially disposed in the opposing inner space between the two conic discs, the infinitely meshing device unit comprises a unit carrier and a meshing body;
the meshing body meshs with the convex and concave meshing teeth on the inner side of the driving belt so as to implement transmission via infinitely meshing;
the meshing body of the infinitely meshing device unit can be a sliding-sheet variable-tooth meshing device, a magnetorheological fluid/electrorheological fluid meshing device, an infinitely meshing device via a worm/worm rack, an infinitely meshing device via skidding blocks; and
its driving belt can be a flexible driving belt with teeth on the inner side, and can also be a flexible driving chain with teeth on the inner side.
-
-
4. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claim 3, characterized in that,
a transmission of a sliding-sheet variable-teeth meshing type: - its infinitely meshing device unit comprises the meshing unit carrier (155) and a sliding-sheet group consisting of several sliding-sheets (including sliding-blocks);
the sliding-sheet group infinitely meshes with the driving belt (151) to transmit power;
an idler wheel (152) embodied as a double-wheel, a single wheel or a drum-like wheel can be provided on the beam for a sliding-sheet holder, the idler wheel(s) cooperates with the radial rail (146), there are provided stop seats (153) for sliding-sheet holders and returning springs (154) under the sliding-sheet groups, the returning spring being classified into a flat spring and a corrugated spring, there can be provided a rolling bearing or a sliding bearing between the idler wheel and the rotation shaft, or even the sliding motion is implemented directly by lubricating contacts without providing the idler wheel;
on the conic disc (147) are provided several radial rails (146) which match the orientation of the generatrix of the conic disc, these rails cooperate with the idler wheels on the respective meshing unit carrier (155) so as to form a translation pair coupling;
the driving belt operates at a stable radial position and implements, together with the meshing body, i.e., the sliding-sheet groups of the meshing device unit, infinitely meshing;
a sliding-block can be add to a sliding-sheet group, if the direction of the force acting upon the sliding-sheets is to the left, the sliding-block should be installed at the left side, and vice versa, if the sliding-sheets are acted by forces in two directions under rotation, then one sliding-block should be installed at either side thereof;
alternatively, the CVT employs a metal pressing belt having teeth at the inner side thereof, this metal pressing belt comprises metal rings (159), metal blocks of a fill type (160), and metal blocks of a meshing type (161), the metal blocks of a fill type and the metal blocks of a meshing type are alternately superposed to form a metal belt with teeth on its inner side;
alternatively;
the driving belt can be a synchronous metal belt of a hole-meshing type, the whole driving belt is constructed by closely superposing multiple layers of metal rings with holes therein, all holes corresponding one by one so as to form rectangular holes for sliding-sheets to insert therethrough, in operation, the sliding-sheets mesh with the rectangular holes so as to implement transmission;
alternatively, the radial constraining rail of the infinitely meshing device unit 148 is as follows;
the whole interior of the conic disc is excavated such that the outer wall surface (164) and the inner wall surface (165) of the conic disc become conic surfaces similar in orientations, several sliding grooves (166) are notched on the conic surface along its generatrix;
alternatively;
the radial rail is a cylindrical guiding groove (168), corresponding cooperation between the meshing device unit and the cylindrical guiding groove employs a cylindrical rolling translation pair (167);
it is also possible to provide a stretching spring (163);
alternatively;
the contact angle between the sliding-sheets and the surfaces of the meshing tooth is less than the equivalent friction angle, a wearable adhesive layer (190) can be provided on the surfaces of the meshing teeth of the driving belt, a wearable metal paste block with high hardness or a coating of wearable material can be adhered, or the belt base can directly undergo hardening treatment;
a device to eliminate the gaps between the metal blocks on the slack side of the metal belt comprises;
an urging wheel (172), a small gear (173), a driving wheel (174), a large gear (175), and a clamping mechanism (176);
the urging wheel and the driving wheel are both pressed firmly onto both sides of the metal belt (a pressure belt) (170), the urging wheel is fixedly coupled to the small gear, the driving wheel is fixedly coupled to the large gear, and the small gear and the large gear maintain meshing transmission;
alternatively;
a motor can be employed to directly drive the urging wheel (172);
alternatively;
the manner of directly impacting via a gas flow or fluid flow of high speed can also be employed to urge the metal blocks to accelerate so as to eliminate gaps therebetween;
a magnetorheological/electrorheological fluid CVT;
its infinitely meshing device unit is “
a magnetorheological/electrorheological fluid”
meshing device, the meshing body is a magnetorheological/electrorheological fluid infinitely meshing body 177, at the instance before meshing, there is no magnetic field, “
magnetorheological fluid”
takes a liquid form, so it can sufficiently deform in accordance with the current meshing tooth profiles, when a magnetic field is applied after meshing, the magnetorheological fluid will immediately assume a solid state and become a solid tooth profile with which it meshes, and the magnetic field is removed after the meshing is released, so the magnetorheological fluid assumes the liquid state again;
alternatively;
“
the magnetorheological fluid” and
“
the electrorheological fluid”
mix and combine with the sliding-sheet groups, the sliding-sheets, when under the effect of forces, mix with the magnetorheological fluid, at the dynamic instance when the sliding-sheets come into meshing, the magnetorheological fluid which mixes with the sliding-sheets assumes a liquid state, so the sliding-sheets can smoothly slide and deform, and once the sliding-sheets assume a complete meshing state and stop sliding, the magnetorheological fluid mixing therewith assumes a solid state and integrates firmly with the sliding-sheets so as to form a fixed tooth profiles;
alternatively;
a magnetorheological/electrorheological fluid CVT comprises a driving belt/chain (180) containing magnetorheological/electrorheological fluids on the inner side thereof, meshing bodies (178) with fixed tooth profiles, and a conic disc, magnetorheological/electrorheological fluids are provided on the inner side of the driving belt base, in other words, the meshing bodies of the infinitely meshing device unit are of fixed tooth profiles, and the tooth profiles of the magnetorheological fluids or electrorheological fluids on the inner side of the belt base change according to the deformation of the tooth profiles of the meshing bodies (178) so as to implement infinitely meshing;
alternatively;
a magnetorheological/electrorheological fluid CVT comprises;
a member capable of infinitely varying radius via magnetorheological/electrorheological fluids (181), bodies (177) capable of infinitely meshing via electrorheological fluids, and a soft cavity for magnetorheological/electrorheological fluids (179);
the processes of the infinitely radius-varying and infinitely meshing are implemented by magnetorheological/electrorheological fluids, the process of the infinitely radius-varying is implemented by infinitely changing the volume of soft cavity (179) for magnetorheological/electrorheological fluids and by “
liquefied deforming”
of the magnetorheological/electrorheological fluids, once the process of the radius-varying completes, the magnetorheological/electrorheological fluids then solidify and the radius is fixed, so as to construct the cylinder capable of infinitely radius-varying;
the process of infinitely meshing is conducted by several bodies capable of infinitely meshing via electrorheological fluids (177) on the outer circumference and the driving belt (151);
alternatively;
the “
magnetorheological fluids”
can be packed into a soft bag to mesh with the fixed teeth, and the fixed teeth for meshing can be manufactured into an arc shape;
alternatively;
the magnetorheological fluids can also directly adhere to the surface of the smooth belt, and mesh with the friction surface conic disc with large roughness to implement transmission;
alternatively;
the driving belt is a driving belt with teeth on both sides, and magnetorheological/electrorheological fluids are provided on the conic surface of the conic disc;
alternatively;
the magnetorheological/electrorheological fluids are provided on the side surfaces of the driving belt, and the corresponding conic surface of the conic disc is provided with convex teeth and concave grooves, at the dynamic instances of coming into meshing and releasing from meshing, the magnetorheological/electrorheological fluids “
liquefy”
, while in other regions they are in a “
solidified”
solid state;
a rack CVT with a worm/worm rack;
its infinitely meshing device unit employs a meshing device operating in “
a manner of infinitely meshing via a worm/worm rack”
, and can be of a “
worm and worm rack meshing”
type, a driving belt/chain in a worm rack toothed shape (183), the worm (182) infinitely meshes with the driving belt/chain in a worm rack toothed shape (183) under the driving of a controller (184) to transmit power;
or it can be of a type in which two worms racks mesh, the worm rack (185) translates and infinitely meshes with the driving belt/chain in a worm rack toothed shape (183) under the driving of the controller (184);
an infinitely meshing transmission with sliding-blocks;
its infinitely meshing device unit is a “
sliding-block infinitely meshing”
device, the tooth profiles on the inner side of the sliding meshing triangular toothed belt, a chain (186) whose triangular teeth at the inner side meshes through sliding, capable of meshing via sliding with the tapered tooth blocks (187) by automatically finding the meshing points through mechanical sliding, the tapered tooth blocks (187) moves in the trails (189), in x direction, they can return via centrifugal forces;
in y direction, they are self-locked, in operation, the tapered tooth blocks can freely return in x direction until they reach the optimal meshing end of the triangular-tooth driving belt capable of meshing via sliding (186) so as to mesh sufficiently with the surfaces of the triangular teeth;
they are self-locked in y direction, by juxtaposing and operating two types of tapered tooth blocks, denoted by (a) and (b), which are orientated along complementary rails, it is realized thus that the infinitely meshing device unit can infinitely mesh with the triangular-tooth driving belt capable of meshing via sliding (186) at any point in the regions that the tooth blocks can slide;
a CVT with a variable-tooth gear capable of radius varying, the variable-tooth gear capable of radius varying is composed of a plurality of infinitely meshing device units (148), the infinitely meshing device units can synchronously move in the radial direction along their respective radial sliding trail (123), respectively;
alternatively;
the infinitely meshing device units (148) mesh with an internal gear ring (191), or;
the infinitely meshing device units (148) mesh with an external gear ring (192);
or;
a variable-tooth cylindrical gear meshes with external meshing tooth segments (193);
a conic disc without a physic spindle in the inner side, with no transmission shaft between the two conic discs, the infinitely meshing device unit can move into a region of a smaller radius;
alternatively;
the carrier for the infinitely meshing device unit is a flexible carrier for the infinitely meshing device unit, the carrier for the meshing unit employs a flexible, a pliable structure, the carrier of the meshing unit is attached to the teeth on the inner side of the belt so as to sufficiently mesh therewith, and its curvature can completely coincide with that of the inner side of the belt;
a transmission of a type without a centrifugal pressing effect, the radial motion of the meshing device unit is controlled by a radial synchronization controller (196), in operation, the centrifugal force poses no centrifugal pressing effect onto the conic disc (147), and it suffices to notch radial through grooves on the conic disc (147), its radial synchronization controller (196) can employ a screw nut structure, the nut (198) is coupled to the meshing device units (148), and the synchronous motions of respective meshing device units (148) in the radial direction are achieved by synchronously controlling the rotation angles of respective screws;
alternatively;
in the radial synchronization controller, each infinitely meshing device unit (148) comes into contact with the inner conic surface of a recessed conic disc (199) via idler wheels (152), and the synchronous motions of respective meshing device units (148) in the radial direction are achieved by controlling the distance of the recessed conic discs (199) on both sides;
alternatively;
the motion trajectories of the infinitely meshing device units (148) are subject to the constraint of a respective corresponding spiral rail with variable radius (201) on a radius-varying rotary disc (200), and the radius-varying rotary disc (200) implements the synchronous motions of respective meshing device units (148) in the radial direction;
alternatively;
the infinitely meshing device units (148) are coupled to the radius-varying rotary disc (200) via a linkage mechanism, or a two-rod linkage mechanism is employed;
the synchronous motions of respective meshing device units 148 in the radial direction are realized by rotating the radius-varying rotary disc (200);
alternatively;
the rotation angle of the radius-varying rotary disc (200) is automatically monitored in real-time by a hydraulic or mechanic manner;
alternatively;
any one of the infinitely meshing device units is constrained by a trajectory of the idler wheel, the coupling constraints among all meshing device units are conducted by a synchronous radial motion mechanism so as to realize radius varying synchronously and equally;
alternatively;
the infinitely meshing device units (148) can be directly inserted into the conic body to transmit torque without being providing with any assistant constraining devices, the T-shaped groove of the trajectory of the idler wheel is changed to a rectangular groove to cooperate with the infinitely meshing device units, the radius is varied freely in the radial direction, the driving belt (151) directly imposes a slave radial dimension constraint on the respective meshing device units (148), and all the infinitely meshing device units on the same conic disc should be coupled to each other by a synchronous radial motion mechanism such that all infinitely meshing device units move in the radial direction synchronously,alternatively;
the synchronous constraint in the radial direction can be implemented by coupling the linkage mechanism to the radius-varying rotary disc (200), or;
the screw and nut structure which is not self-locking in either direction is employed, and all screw nuts move synchronously through the joint of the conic gear mechanism (203) so as to implement the synchronous radial constraints;
alternatively;
the infinitely meshing device unit implements synchronous radius-varying through the control of the radius-varying rotary disc (200) and the linkage mechanism (202);
it is not necessary to notch radial rail grooves on the conic disc (147), or rectangular grooves are provided on the conic disc (147) to cooperate with the infinitely meshing device unit,a transmission of the type containing a central guiding and constraining disc, a central guiding and constraining disc (204) is disposed between the two conic discs (147) so as to transmit torques and guide in the radial direction, the central guiding and constraining disc (204) is of a flat disc type or a double-sided conic disc type, or;
a radial synchronization controller is provided in the center of the central guiding and constraining disc (204);
alternatively;
a separating device via electromagnetic traction is provided, and the conic disc combined by split parts is employed, comprising an inner conic disc (147) and an outer conic disc casing (205) with a predetermined axial spacing therebetween, and an electromagnetic sucking disc (206) is provided in the inner conic disc (147) and/or an outer conic disc casing (205), or;
the electromagnetic sucking disc is replaced with a hydraulic or pneumatic device;
an electromagnetic traction controller for seating sliding-sheets, wherein stop bars against returning and seating of sliding-sheets (207) is controlled by the electromagnetic forces of the electromagnetic sucking disc (206);
alternatively;
a mechanic traction controller for seating sliding-sheets, a seating control disc (209) is rotated, and a cam (208) is entrained by the idler wheel (152) mechanism to rotate, and the stop bars against returning and seating of sliding-sheets (207) are hence urged to move, so as to seat the sliding-sheets to achieve the separation of the sliding-sheets from the inner meshing teeth of the driving belt;
a driving belt with single-direction meshing teeth, the inner meshing teeth are divided into two halves, each half region is designed to be a single-direction tooth surface;
a CVT with a meshing type steel ring, comprises a steel ring with meshing teeth on the inner side (210) and the corresponding conic disc.
- its infinitely meshing device unit comprises the meshing unit carrier (155) and a sliding-sheet group consisting of several sliding-sheets (including sliding-blocks);
-
5. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claim 3, characterized in that:
- the tooth-and-groove wheel is classified into a flat disc type and a conic disc type, its working disc surface comprises convex teeth and concave grooves;
its groove pattern is;
a single tooth pattern in the form of radiating in radial direction, an arrangement equivalent in the interval density of teeth and grooves, a type of being knurled throughout a disc, a type with a uniform array of protuberances throughout the disc surface, a type with a uniform array of dimples throughout the disc surface, a specialized type for the bevel sliding-sheet variable-tooth gear, a tooth-and-groove disc type for stepped transmission, a type where the tooth-and-groove pattern is optimized for each segment and for each step, a type where the shuttle-shaped teeth are alternately arranged in the radial direction, or a type where the shuttle-shaped teeth are uniformly arranged in the radial direction;
said meshing ring with teeth and grooves is;
a conic type or a cylindrical type;
wherein, the conic tooth ring can be classified into;
a conic tooth ring meshing at the inner and outer sides, a conic tooth ring meshing at the inner side, and a conic tooth ring meshing at the outer side;
the cylindrical tooth ring can be classified into;
a cylindrical tooth ring meshing at the inner side, a cylindrical tooth ring meshing at the inner and outer sides, and a cylindrical tooth ring meshing at the outer side.
- the tooth-and-groove wheel is classified into a flat disc type and a conic disc type, its working disc surface comprises convex teeth and concave grooves;
-
6. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claim 1, characterized in that:
- said sliding-sheets are sliding-sheets specialized for the variable-tooth cylindrical gear, sliding-sheets specialized for the variable-tooth conic gear that are of “
the type in which one side works independently”
, sliding-sheets specialized for the variable-tooth conic gear that are of “
the type in which both sides work integrally”
, sliding-sheets specialized for the sliding-sheet variable-tooth conic gear with of a small taper, sliding-sheets specialized for the variable-tooth gear of the rotary shaft roller gear CVTs, sliding-sheets specialized for the variable-tooth gear of returning in an oblique direction type, sliding-sheets specialized for the sliding-sheet tension driving belt, or sliding-sheets of the returning via elastic force type, all of them include support sliding-sheets, fill sliding-sheets, the support sliding-sheets contact the wall of the wheel body holder to receive forces, and the fill sliding-sheets contact the support sliding-sheets to receive forces, being classified into an outside support type, an outside interaction crossing support type, a central support type, a central interaction crossing support type, an outside and central double support type, and an outside and central interaction crossing support type;
the sliding-sheets can also be circular sliding-sheets;
the working surfaces of the sliding-sheets can be of an arc shape, and the working surfaces can be further decreased so as to form “
a local force-receiving zone in an arc shape”
, the arc-shaped profile of the working surfaces can be modified to a linear profile;
a thick sliding-sheet can be added to each end of the sliding-sheet group, the stop legs of the fill sliding-sheets can be as long as those of the support sliding-sheets, and they can have one or two stop legs;
cross sections of the sliding-sheets can be cross sections of the same thickness or be of a segment shape, or be cross sections of different shapes;
the shapes of the cross sections of the contact regions between the sliding-sheets and the teeth and grooves can be;
a single slant, double slants, circular surfaces, the contact section angle θ
thereof can coincide with the slanting angle of the wall surfaces of the teeth and grooves;
the constraining device for the sliding-sheets can be stop legs for sliding-sheets (25) and an outer constraining ring (23), wherein there can be one or two stop legs for a sliding-sheet;
the stop leg for a sliding-sheet can be of a convex type or a concave type, alternatively, a constraining ring, string or rod can be inserted through a hole which is punched in the sliding-sheet to carry out constraining;
there can be one or two stop legs for a sliding-sheet;
the stop leg for a sliding-sheet can be of a convex type or a concave type, alternatively, a constraining ring, string or rod can be inserted through a hole which is punched in the sliding-sheet to carry out constraining, or the constraining is implemented by the outer constraining ring (23),the sliding-sheets of returning via elastic force type include;
Mode A fill sliding-sheets of returning via elastic force type, Mode A support sliding-sheets of returning via elastic force type, Mode B support sliding-sheets of returning via elastic force type, Mode B fill sliding-sheets of returning via elastic force type;
the meshing surfaces on both sides of the sliding-sheets can be made into an arc shape or a rectangular shape;
or;
the returning of the sliding-sheets of the sliding-sheet wheel can take a free returning manner, the sliding-sheets of returning via elastic force type are divided into two halves, and a returning spring wire (109) is interposed therebetween, so as to implement returning via spring forces;
or injecting gas flow or liquid flow through a gas flow hole (110) to realize the returning type via flow impact forces;
or;
an electromagnetic traction device is disposed on the conic disc tooth-and-groove wheel or at positions of equivalent effect, the returning type via electromagnetic forces can be realized in such a way that sliding-sheets on the sliding-sheet wheel are electromagnetically attracted or repelled by electromagnetic traction forces;
the stop legs for the sliding-sheets can be provided at the middle of the sliding-sheets, and the sliding-sheets can have one or two stop legs;
alternatively;
the sliding-sheets of returning via spring force type can be provided with returning spring wires arranged at the end thereof, the returning trajectories of the sliding-sheets can be a type of returning in translation, or a type of returning in rotation;
or;
a flat spring, or a corrugated spring can be disposed on the bottom of the sliding-sheets;
alternatively;
the sliding-sheets of a type of supporting on one side can also be employed, its corresponding variable-tooth gear body is a gear body (144) without a stop boss, which is superposed with a gear body having a stop boss to constrain and position the sliding-sheets;
alternatively;
the sliding-sheets can be disposed as a needle shape or a block shape; and
the cross section of the needle shape can be circular or rectangular.
- said sliding-sheets are sliding-sheets specialized for the variable-tooth cylindrical gear, sliding-sheets specialized for the variable-tooth conic gear that are of “
-
7. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claims 1, 2 or 3, characterized in that:
- the force direction when transmitting power is perpendicular to the free-sliding direction, or the angle therebetween is within the equivalent friction angle, the sliding-sheet possesses self-locking property;
the principle of “
self-locking meshing property”
is employed to design the sliding-sheets in meshing;
the arrangement principle of the meshing points of said sliding-sheets and the tooth-and-groove wheel employs “
the progressive toothwise differential principle”
.
- the force direction when transmitting power is perpendicular to the free-sliding direction, or the angle therebetween is within the equivalent friction angle, the sliding-sheet possesses self-locking property;
-
2. The infinitely meshing variable-tooth gear with sliding-sheet deforming teeth according to claim 1, characterized in that, at least one sliding-sheet holder is provided in the gear body of the variable-tooth, and the sliding-sheet holder is a support sliding-sheet holder or a fill sliding-sheet holder;
-
8. An infinitely meshing variable-tooth rack with sliding-sheet deforming teeth, characterized in that:
- the infinitely meshing variable-tooth rack with sliding-sheet deforming teeth comprises a variable-tooth rack body and a plurality of sliding-teeth built in the rack body;
wherein, the sliding-sheets can move in the variable-tooth rack body due to returning forces, and the sliding-sheets protrude out of the opposing contour surfaces on the variable-tooth rack body so as to form tooth profiles of any shape. - View Dependent Claims (9, 10)
-
9. The infinitely meshing variable-tooth rack with sliding-sheet deforming teeth according to claim 8, characterized in that:
- said variable-tooth rack body is a rigid variable-tooth rack body or a flexible variable-tooth rack body, said variable-tooth rack body is;
a velocity-locking block with sliding-sheets disposed therein, or a velocity-locking block with sliding-needles disposed therein; and
said flexible variable-tooth rack is;
a sliding-sheet tension driving belt;
wherein, a velocity-locking block (138) having sliding-sheets mounted therein can be clipped by two symmetrically arranged traction belts (137) whose meshing convex teeth and concave grooves oppose, whereby non-frictional meshing transmission is achieved by means of the meshing teeth and grooves of the two traction belts with regard to the returning process via elastic force of the sliding-sleets;
wherein, the sliding-sheet tension driving belt is composed of two sets of split metal rings with convex and concave grooves clipping from the opposite directions a series of support metal sheets and fill metal sheets arranged at intervals, each set of the metal rings is configured by superposing several metal rings with convex and concave grooves, the recessed shoulders of the support metal sheets and the fill metal sheets are different and engaged with the convex and concave grooves of the split metal ring (82), a predetermined play is provided between the recessed shoulders of the metal sheets and the meshing grooves of the metal rings;
the shapes of the metal sliding-sheets are classified into Mode A and Mode B, including metal sliding-sheets (80, 81, 85, 86);
to prevent the distance between every two sets of the metal rings from changing, they are fixedly coupled to each other by a coupling body (83) for the metal belts;
alternatively;
the sliding-sheet tension driving belt comprises a metal ring (87) with a positioning groove in the middle, Mode C support metal sheets (88) and Mode C fill metal sheets (89), there are several metal rings (87) with a positioning groove in the middle superposed in the upper and lower portions of the metal sheets so as to constrain the sliding-sheets, a predetermined play is provided between the support sliding-sheets and the positioning grooves of the metal rings so as to allow for the metal sheets to slide transversely when the sliding-sheet belt meshes with the tooth-and-groove wheel;
alternatively;
the sliding-sheet tension driving belt comprises metal rings (90) with convex-concave grooves on both sides, Mode D fill metal sheets (91), Mode D support metal sheets (92), the several metal rings (90) are superposed in the upper and lower portions of the metal sheets so as to constrain the sliding-sheets, a predetermined play is also provided between the sliding-sheets and the convex-concave grooves of the metal rings so as to allow for the metal sheets to slide transversely when the sliding-sheet belt meshes with the tooth-and-groove wheel;
alternatively;
the sliding-sheet holders can be of a circular shape, a rectangular shape, or a sector shape;
said infinitely meshing variable-tooth rack with sliding-sheet deforming teeth meshes with a tooth-and-groove boss, the working surface of the tooth-and-groove boss comprises teeth and grooves; and
the tooth-and-groove boss is classified into a rigid tooth-and-groove boss, and a flexible tooth-and-groove boss;
wherein, the flexible tooth-and-groove boss is a traction belt containing meshing convex teeth and concave grooves, or a tooth-and-groove driving belt of a tooth meshing type, this driving belt is classified into a pressing belt, and a tension belt;
the tension belt includes;
being composed of a belt base (65), an enforced layer (66), and meshing support blocks (64);
the transmission via meshing of convex teeth and concave grooves is realized by arranging the meshing support blocks (64) at intervals, the meshing support blocks can be arranged at regular intervals or at irregular intervals;
alternatively, a plate-and-pin chain of meshing type;
meshing blocks (78) are provided on chain pins (76) or chain plates (77), meshing blocks can be provided on the chain pins (76) or chain plates (77), or;
meshing blocks can be provided on both the chain pins (76) and the chain plates (77);
or;
the metal ring driving belt;
being configured by superposing a plurality of metal rings with convex teeth and concave grooves on both sides, in a manner of one corresponding to another;
alternatively, Mode B driving belt;
the belt base is made of non-metal materials, its enforced layer be enforced with steel strings or nylon strings, etc., the two sides are wearable wall surfaces, and are made into a shape of meshing convex teeth and concave grooves, in addition, its transverse convex and concave tooth profiles can extend all the way through the whole belt base;
alternatively;
the prior art belt or chain is refitted, and the working side surface of the belt or chain is a convex tooth and concave groove capable of meshing with the sliding-sheets;
the pressing belt includes;
a metal belt of the meshing type, a metal belt with meshing convex teeth and concave grooves configured by alternately combining metal rings and wide, narrow metal blocks;
or;
a metal belt configured by firstly composing a wide metal block group from wide metal blocks and a narrow metal block group from narrow metal blocks and then alternately combining the wide metal block group with the narrow metal block group;
or;
the narrow metal blocks can employ “
a cross section of an arc shape”
, the regions of both sides of the wide metal blocks that participate in meshing can be provided with slant surfaces, whereby the continuously variable transmission performance is basically improved by means of the self-locking meshing property;
alternatively;
the wide, narrow metal blocks can be replaced with “
concave metal blocks” and
“
convex metal blocks”
of the flexible metal belt for the transmission with variable-tooth conic gear of a small taper.
- said variable-tooth rack body is a rigid variable-tooth rack body or a flexible variable-tooth rack body, said variable-tooth rack body is;
-
10. The infinitely meshing variable-tooth rack with sliding-sheet deforming teeth according to claim 8, characterized in that:
- said sliding-sheets are sliding-sheets specialized for the variable-tooth cylindrical gear, sliding-sheets specialized for the variable-tooth conic gear that is of “
the type in which one side works independently”
, sliding-sheets specialized for the variable-tooth conic gear that is of “
the type in which both sides work integrally”
, sliding-sheets specialized for the sliding-sheet variable-tooth conic gear with a small taper, sliding-sheets specialized for the variable-tooth gear of the rotary shaft roller gear CVTs, sliding-sheets specialized for the variable-tooth gear of returning in an oblique direction type, sliding-sheets specialized for the sliding-sheet tension driving belt, or sliding-sheets of the returning via elastic force type, all of them include support sliding-sheets, fill sliding-sheets, the support sliding-sheets contact the wall of the wheel body holder to receive forces, and the fill sliding-sheets contact the support sliding-sheets to receive forces, being classified into an outside support type, an outside interaction crossing support type, a central support type, a central interaction crossing support type, an outside and central double support type, and an outside and central interaction crossing support type;
the sliding-sheets can also be circular sliding-sheets;
the working surfaces of the sliding-sheets can be of an arc shape, and the working surface can be further decreased so as to form “
a local force-receiving zone in an arc shape”
, the arc-shaped profile of the working surface can be modified to a linear profile;
a thick sliding-sheet can be added to each end of the sliding-sheet group, and the stop legs of the fill sliding-sheets can be as long as those of the support sliding-sheets, they can have one or two stop legs;
cross sections of the sliding-sheets can be cross sections of the same thickness or be of a segment shape, or be cross sections of different shapes;
the cross section shapes of the contact regions of the sliding-sheets and the teeth and grooves can be;
a single slant, double slants, circular surfaces, the contact section angle θ
can coincide with the slanting angle of the wall surfaces of the teeth and grooves;
the constraining device for the sliding-sheets can be stop legs for sliding-sheets (25), and an outer constraining ring (23), wherein there can be one or two stop legs for a sliding-sheet;
the stop leg for a sliding-sheet can be of a convex type or a concave type, alternatively, a constraining ring, string or rod can be inserted through a hole which is punched in the sliding-sheet to carry out constraining;
there can be one or two stop legs for a sliding-sheet;
the stop leg for a sliding-sheet can be of a convex type or a concave type, alternatively, a constraining ring, string or rod may be inserted through a hole which is punched in the sliding-sheet to carry out constraining, or constraining is implemented by the outer constraining ring (23),the sliding-sheets of returning via elastic force type include;
Mode A fill sliding-sheets of returning via elastic force type, Mode A support sliding-sheets of returning via elastic force type, Mode B support sliding-sheets of returning via elastic force type, Mode B fill sliding-sheets of returning via elastic force type;
the meshing surfaces on both sides of the sliding-sheets can be made into an arc shape or a rectangular shape;
or;
the returning of the sliding-sheets of the sliding-sheet wheel can take a free returning manner, the sliding-sheets of returning via elastic force type are divided into two halves, and a returning spring wire (109) is interposed therebetween, so as to implement returning via spring forces;
or injecting gas flow or liquid flow through a gas flow hole (110) to realize the returning type via flow impact forces;
or;
an electromagnetic traction device is disposed on the conic disc tooth-and-groove wheel or at positions of equivalent effect, the returning type via electromagnetic forces can be realized in such a way that sliding-sheets on the sliding-sheet wheel are electromagnetically attracted or repelled by electromagnetic traction forces;
the stop legs for the sliding-sheets can be provided at the middle of the sliding-sheets, and the sliding-sheets can have one or two stop legs;
alternatively;
the sliding-sheets of returning via spring force type can have returning spring wires arranged at the end thereof, the returning trajectories of the sliding-sheets can be of a type of returning in translation, or a type of returning in rotation;
or;
a flat spring, or a corrugated spring can be disposed on the bottom of the sliding-sheets;
alternatively;
the sliding-sheets of a type of supporting on one side can also be employed, its corresponding variable-tooth gear body is a gear body (144) without a stop boss, which is superposed with a gear body having a stop boss to constrain and position the sliding-sheets;
alternatively;
the sliding-sheets can be disposed as a needle shape or a block shape; and
the cross section of the needle shape can be circular or rectangular,the arrangement principle of the meshing points of said sliding-sheet variable-tooth rack and the tooth-and-groove boss employs “
the progressive toothwise differential principle”
.
- said sliding-sheets are sliding-sheets specialized for the variable-tooth cylindrical gear, sliding-sheets specialized for the variable-tooth conic gear that is of “
-
9. The infinitely meshing variable-tooth rack with sliding-sheet deforming teeth according to claim 8, characterized in that:
- the infinitely meshing variable-tooth rack with sliding-sheet deforming teeth comprises a variable-tooth rack body and a plurality of sliding-teeth built in the rack body;
Specification
- Resources
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Current AssigneeBeijing Vit Mobile Technologies Co.
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Original AssigneeBeijing Vit Mobile Technologies Co.
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InventorsWang, Guobin
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Application NumberUS11/725,857Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current257/668CPC Class CodesF16G 1/28 with a contact surface of s...F16G 5/16 consisting of several partsF16H 3/002 using gears having teeth mo...F16H 3/423 the teeth being arranged on...F16H 3/426 the teeth being arranged on...F16H 55/17 Toothed wheels worm wheels ...F16H 55/171 Toothed belt pulleysF16H 55/54 of which the bearing parts ...F16H 55/56 of which the bearing parts ...F16H 9/24 using chains or toothed bel...H01L 2924/00 Indexing scheme for arrange...H01L 2924/0002 Not covered by any one of g...