CN215673137U

CN215673137U - Wear-resistant crankshaft bearing

Info

Publication number: CN215673137U
Application number: CN202122088003.3U
Authority: CN
Inventors: 王敬美
Original assignee: Taizhou Yongning Bearing Manufacturing Co ltd
Current assignee: Taizhou Yongning Bearing Manufacturing Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-28
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a wear-resistant crankshaft bearing, and belongs to the field of bearings. The crankshaft bearing retainer solves the problems that the radial force coefficient of the existing crankshaft bearing retainer is not high and the service life is short. This wear-resisting crankshaft bearing, including the bearing inner race, ball and holder, bearing inner race inner wall and bearing inner race outer wall are formed with the cavity that supplies to hold ball and holder, still include two sealed lids, two sealed lids are located the bearing both sides respectively, the storage ring groove that supplies lubricating grease to store has on the holder inner wall, all be provided with the buffering subassembly that is used for improving the bearing and keeps off radial force coefficient on the bearing inner wall and on the bearing inner race outer wall, the buffering subassembly comprises fender ring and buffer spring, the mounting groove that a plurality of supplied buffer spring to install has been seted up on the fender ring periphery wall. The utility model has the advantages of improving the radial force coefficient of the bearing retainer, improving the bearing capacity of the bearing, improving the wear resistance and prolonging the service life of the bearing.

Description

Wear-resistant crankshaft bearing

Technical Field

The utility model belongs to the field of bearings, and relates to a wear-resistant crankshaft bearing.

Background

The motorcycle power is mainly the engine, and the engine key is bent axle and crankshaft bearing, and motorcycle engine quality is related to the quality of whole car, and crankshaft bearing is the key spare part of engine, and traditional crankshaft bearing receives the warp direction force under general operating condition, and the bearing is because under the radial force effect, the ball constantly rubs and laminates with the bearing inner race inner wall in the work engineering, not only can cause the damage to the bearing inside, and the life of bearing also for a long time the cost of maintenance great.

Disclosure of Invention

The present invention addresses the above-identified problems of the prior art by providing a wear-resistant crankshaft bearing having an improved radial force coefficient of the bearing stops.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a wear-resisting crankshaft bearing, includes bearing inner race, ball and holder, bearing inner race inner wall and bearing inner race outer wall be formed with the cavity that supplies to hold ball and holder, its characterized in that still includes two sealed lids, two sealed lids are located the bearing both sides respectively, the storage annular that supplies lubricating grease to store has on the holder inner wall, all be provided with on the bearing inner race inner wall and on the bearing inner race outer wall and be used for improving the bearing and keep off the buffering subassembly of radial force coefficient, the buffering subassembly constitute by fender ring and buffer spring, fender ring periphery wall on set up the mounting groove that a plurality of supplied buffer spring to install.

In the wear-resistant crankshaft bearing, the baffle rings are positioned on the upper side and the lower side of the rolling ball, annular grooves for installing the baffle rings are formed in the inner wall of the bearing outer ring and the outer wall of the bearing inner ring, and a plurality of protruding parts protruding towards the direction of the crotch ring installation groove are formed in the bottoms of the annular grooves.

In the wear-resistant crankshaft bearing, the bulge is fixedly connected with a buffer spring, and the other end of the buffer spring is abutted and mounted on the groove bottom of the mounting groove.

In the wear-resistant crankshaft bearing, the longitudinal sections of the baffle rings on the inner wall of the bearing outer ring and the outer wall of the bearing inner ring are in an arc shape, and the baffle rings on the inner wall of the bearing outer ring and the outer wall of the bearing inner ring are oppositely arranged.

In the wear-resisting crankshaft bearing, the groove bottom of the ring groove and the outer wall of the baffle ring are provided with a buffer gap, and the buffer gap can provide a compression space for the buffer spring.

Compared with the prior art, this wear-resisting bent axle bearing offers the storage annular that supplies lubricating grease to store on the retainer inner wall, through being located the lubricating grease of this storage annular, can be at the bearing during operation, play fine lubrication effect inside the bearing, the effect of bearing lubrication effect and bearing capacity is improved to having, all be provided with the buffering subassembly simultaneously on bearing inner race inner wall and bearing inner race outer wall, can be at the bearing during operation through this buffering subassembly, the influence of effectual reduction radial force to the bearing, the effect that has improvement bearing fender radial force coefficient and increase its life has.

Drawings

Fig. 1 is a schematic cross-sectional view of the present wear-resistant crankshaft bearing.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure, 1, a bearing outer ring; 2. a bearing inner race; 3. a ball bearing; 4. a holder; 5. a cavity; 6. a sealing cover; 7. a storage ring groove; 8. a baffle ring; 9. a buffer spring; 10. a boss portion; 11. mounting grooves; 12. a ring groove; 13. the gap is buffered.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and fig. 2, the wear-resistant crankshaft bearing comprises a bearing outer ring 1, a bearing inner ring 2, balls 3 and a retainer 4, wherein a cavity 5 for accommodating the balls 3 and the retainer 4 is formed on the inner wall of the bearing outer ring 1 and the outer wall of the bearing inner ring 2, the wear-resistant crankshaft bearing further comprises two sealing covers 6, the two sealing covers 6 are respectively positioned at two sides of the bearing, a storage ring groove 7 for storing lubricating grease is formed on the inner wall of the retainer 4, buffer components for improving the radial force coefficient of a bearing stop are respectively arranged on the inner wall of the bearing outer ring 1 and the outer wall of the bearing inner ring 2, each buffer component comprises a stop ring 8 and a buffer spring 9, a plurality of mounting grooves 11 for mounting the buffer springs 9 are formed on the outer wall of the stop ring 8, the stop rings 8 and the buffer springs 9 are respectively arranged on the inner wall of the bearing outer ring 1 and the inner wall of the bearing inner ring 2, when the bearing works, the balls 3 move up and down under the action of the radial force, but through this structural design, under the condition that does not influence ball 3 movement track and bearing operating condition, can effectual reduction radial force, improved bearing and kept off radial force coefficient and bearing wearability, have the storage annular 7 that can store lubricating grease on the retainer 4 inner wall simultaneously, strengthened the lubricated effect to the bearing inside, improved the bearing capacity and the bearing life of bearing.

In a further detail, the baffle rings 8 are positioned on the upper side and the lower side of the rolling ball, the inner wall of the bearing outer ring 1 and the outer wall of the bearing inner ring 2 are respectively provided with an annular groove 12 for installing the baffle rings 8, and the bottom of the annular groove 12 is provided with a plurality of convex parts 10 protruding towards the direction of the crotch ring installation groove 11.

In more detail, the protruding portion 10 is fixedly connected with a buffer spring 9, and the other end of the buffer spring 9 is abutted to be mounted on the bottom of the mounting groove 11.

In more detail, the groove bottom of the ring groove 12 and the outer wall of the baffle ring 8 are provided with a buffer gap 13, and the buffer gap 13 can provide a compression space for the buffer spring 9.

In more detail, the longitudinal sections of the baffle rings 8 on the inner wall of the bearing outer ring 1 and the outer wall of the bearing inner ring 2 are in the shape of circular arcs, and the baffle rings 8 on the inner wall of the bearing outer ring 1 and the outer wall of the bearing inner ring 2 are oppositely arranged.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A wear-resistant crankshaft bearing comprises a bearing outer ring (1), a bearing inner ring (2), balls (3) and a retainer (4), the inner wall of the bearing outer ring (1) and the outer wall of the bearing inner ring (2) form a cavity (5) for accommodating the balls (3) and the retainer (4), it is characterized by also comprising two sealing covers (6), wherein the two sealing covers (6) are respectively positioned at two sides of the bearing, the inner wall of the retainer (4) is provided with a storage ring groove (7) for storing lubricating grease, the inner wall of the bearing outer ring (1) and the outer wall of the bearing inner ring (2) are both provided with buffer components for improving the radial force coefficient of the bearing retainer, buffer unit constitute by fender ring (8) and buffer spring (9), fender ring (8) periphery wall on set up mounting groove (11) that a plurality of supplied buffer spring (9) to install.

2. A wear-resistant crankshaft bearing according to claim 1, wherein the baffle rings (8) are located on the upper and lower sides of the rolling ball, and the inner wall of the bearing outer ring (1) and the outer wall of the bearing inner ring (2) are provided with ring grooves (12) for installing the baffle rings (8), and the bottom of the ring groove (12) is provided with a plurality of protrusions (10) protruding towards the crotch ring installation groove (11).

3. A wear resistant crankshaft bearing according to claim 2, characterized in that a damping spring (9) is fixedly attached to said protruding portion (10), and the other end of said damping spring (9) is mounted against the bottom of the mounting groove (11).

4. A wear resistant crankshaft bearing according to claim 2, characterized in that the groove bottom of the ring groove (12) and the outer wall of the retainer ring (8) have a buffer gap (13), and the buffer gap (13) is capable of providing a compression space for the buffer spring (9).

5. A wear-resistant crankshaft bearing according to claim 1, characterized in that the longitudinal cross-section of the baffle rings (8) on the inner wall of the bearing outer ring (1) and the outer wall of the bearing inner ring (2) is circular arc-shaped, and the baffle rings (8) on the inner wall of the bearing outer ring (1) and the outer wall of the bearing inner ring (2) are oppositely arranged.