ROTATING DEVICE INCLUDING A ROTATING SHAFT AND A SELF-LUBRICATING BEARING
First Claim
Patent Images
1. A rotating device comprising:
- a rotating shaft rotatable in a rotational direction; and
a self-lubricating bearing sleeved on said rotating shaft and having a top surface, a bottom surface, and an imaginary transverse line extending along a transverse direction of said rotating shaft for dividing said bearing into an upper bearing section and a lower bearing section disposed under said upper bearing section, an inner peripheral surface of said upper bearing section having an outwardly diverging upper end that increases gradually in diameter in a direction away from said transverse line, an inner peripheral surface of said lower bearing section having an outwardly diverging lower end that increases gradually in diameter in a direction away from said transverse line, said bearing being formed with a plurality of inclined ditches in at least one of said inner peripheral surfaces of said upper and lower bearing sections, each of said inclined ditches having top and bottom ends and extending downwardly from said top end to said bottom end in a direction corresponding to said rotational direction, said top and bottom ends of each of said inclined ditches being located between said top and bottom surfaces of said bearing and being spaced apart from each other by a vertical distance that is not larger than one half of a vertical length of said bearing.
1 Assignment
0 Petitions
Accused Products
Abstract
A rotating device includes a rotating shaft rotatable in a rotational direction, and a self-lubricating bearing having an inner peripheral surface formed with a plurality of inclined ditches. Each of the inclined ditches has top and bottom ends, and extends downwardly from the top end to the bottom end in a direction corresponding to the rotational direction. The inner peripheral surface of the bearing has two outwardly diverging ends for preventing splashing of the lubricating oil from the top and bottom ends of the inclined ditches during rotation of the rotating shaft.
28 Citations
39 Claims
-
1. A rotating device comprising:
-
a rotating shaft rotatable in a rotational direction; and a self-lubricating bearing sleeved on said rotating shaft and having a top surface, a bottom surface, and an imaginary transverse line extending along a transverse direction of said rotating shaft for dividing said bearing into an upper bearing section and a lower bearing section disposed under said upper bearing section, an inner peripheral surface of said upper bearing section having an outwardly diverging upper end that increases gradually in diameter in a direction away from said transverse line, an inner peripheral surface of said lower bearing section having an outwardly diverging lower end that increases gradually in diameter in a direction away from said transverse line, said bearing being formed with a plurality of inclined ditches in at least one of said inner peripheral surfaces of said upper and lower bearing sections, each of said inclined ditches having top and bottom ends and extending downwardly from said top end to said bottom end in a direction corresponding to said rotational direction, said top and bottom ends of each of said inclined ditches being located between said top and bottom surfaces of said bearing and being spaced apart from each other by a vertical distance that is not larger than one half of a vertical length of said bearing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A rotating device comprising:
-
a rotating shaft rotatable in a rotational direction; and a self-lubricating bearing sleeved on said rotating shaft and having a top surface, a bottom surface, and two imaginary transverse lines which are spaced apart from each other along an axial direction of said rotating shaft and each of which extends along a transverse direction of said rotating shaft for dividing said bearing into an upper bearing section, a middle bearing section, and a lower bearing section, which are three separate members and which are arranged along said axial direction of said rotating shaft, said middle bearing section being disposed under said upper bearing section and above said lower bearing section, each of said upper and lower bearing sections having a vertical length smaller than that of said middle bearing section, an inner peripheral surface of each of said upper and lower bearing sections having an outwardly diverging upper end that increases upwardly and gradually in diameter, and an outwardly diverging lower end that increases downwardly and gradually in diameter, said bearing being formed with; an upper group of inclined ditches formed in said inner peripheral surface of said upper bearing section and located under said top surface of said bearing, said top ends of said upper group of said inclined ditches being open at said outwardly diverging upper end of said inner peripheral surface of said upper bearing section, said bottom ends of said upper group of said inclined ditches being open at said outwardly diverging lower end of said inner peripheral surface of said upper bearing section, and a lower group of inclined ditches formed in said inner peripheral surface of said lower bearing section and located above said bottom surface of said bearing, said top ends of said lower group of said inclined ditches being open at said outwardly diverging upper end of said inner peripheral surface of said lower bearing section, said bottom ends of said lower group of said inclined ditches being open at said outwardly diverging lower end of said inner peripheral surface of said lower bearing section, each of said upper and lower groups of said inclined ditches having top and bottom ends and extending downwardly from said top end to said bottom end in a direction corresponding to said rotational direction, said top and bottom ends of each of said upper and lower groups of said inclined ditches being spaced apart from each other by a vertical distance that is not larger than one half of a vertical length of said bearing. - View Dependent Claims (39)
-
Specification