Bi-axial supporting arrangement which can withstand high acceleration forces
First Claim
1. An arrangement for bi-axial tiltable support of a load rotor in a projectile having a rotor housing, said arrangement upon firing of the projectile being exposed to large acceleration forces, said arrangement including means to allow said rotor to perform limited tilting or turning motions about two mutually perpendicular tilt axes lying in a plane, the tilt axes being substantially perpendicular to the longitudinal axis of the projectile, the rotation axis of the rotor substantially coinciding with the longitudinal axis of the projectile, said rotor being supported by a bearing body having at least a spherical section contour, said bearing body being disposed in a correspondingly spherically cup-shaped recess in a stationary part, said recess having an open end, said rotor being mounted on the bearing body and disposed in the recess, said rotor facing toward the motion direction of the projectile and having the bottom thereof oppositely disposed, said arrangement including means that at firing establish contact momentarily between the spherical surfaces of the recess and the bearing body, and said bearing body being connected with the projectile housing via two pairs of link arms elongated in the longitudinal direction of the projectile, each pair of link arms including first and second link arms each having first and second ends, said first end of each link arm in each pair being rotatably joined to said bearing body at two diametrically spaced points of said bearing body for defining a turning axis for said bearing body between said points, said link arms in each pair having said second ends thereof joined by motion transmitting means to a respective output shaft in such manner that rotation of the shaft is transferred to said bearing body and vice versa by longitudinal displacement of said link arms, a drive motor and an angular transducer being mounted on each shaft, and said arrangement including means for delivering compressed air to the space between the spherical surface of the bearing body and the spherical surface of the recess in order to maintain, in operation, a small gap between the said surfaces for allowing said tilting motions of the bearing body.
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Accused Products
Abstract
The invention relates to a bi-axial support of a rotatable body in a projectile for supporting said body such that it can perform small tilting motions about two mutually perpendicular axes lying in a plane, which is perpendicular to the longitudinal axis of the projectile. The support consists of a spherical or partly spherical bearing body introduced into a correspondingly spherical cup-shaped recess in a projectile-fixed part having the open end directed forwards in the motion direction of the projectile. The spherical bearing body is retained in the recess by means of two pairs of link arms defining two virtual tilting axes for the bearing body and connected to two output shafts such that a tilting motion of the body about the respective virtual axis results in a rotation of the respective output shaft and vice versa. When firing the projectile the spherical surface of the bearing body comes in metallic contact with the spherical surface of the recess, whereby the support can withstand very high acceleration forces in any direction.
232 Citations
8 Claims
- 1. An arrangement for bi-axial tiltable support of a load rotor in a projectile having a rotor housing, said arrangement upon firing of the projectile being exposed to large acceleration forces, said arrangement including means to allow said rotor to perform limited tilting or turning motions about two mutually perpendicular tilt axes lying in a plane, the tilt axes being substantially perpendicular to the longitudinal axis of the projectile, the rotation axis of the rotor substantially coinciding with the longitudinal axis of the projectile, said rotor being supported by a bearing body having at least a spherical section contour, said bearing body being disposed in a correspondingly spherically cup-shaped recess in a stationary part, said recess having an open end, said rotor being mounted on the bearing body and disposed in the recess, said rotor facing toward the motion direction of the projectile and having the bottom thereof oppositely disposed, said arrangement including means that at firing establish contact momentarily between the spherical surfaces of the recess and the bearing body, and said bearing body being connected with the projectile housing via two pairs of link arms elongated in the longitudinal direction of the projectile, each pair of link arms including first and second link arms each having first and second ends, said first end of each link arm in each pair being rotatably joined to said bearing body at two diametrically spaced points of said bearing body for defining a turning axis for said bearing body between said points, said link arms in each pair having said second ends thereof joined by motion transmitting means to a respective output shaft in such manner that rotation of the shaft is transferred to said bearing body and vice versa by longitudinal displacement of said link arms, a drive motor and an angular transducer being mounted on each shaft, and said arrangement including means for delivering compressed air to the space between the spherical surface of the bearing body and the spherical surface of the recess in order to maintain, in operation, a small gap between the said surfaces for allowing said tilting motions of the bearing body.
Specification