Bearing retainer structure for automobile rolling element

Abstract

The utility model discloses a bearing retainer structure for an automobile rolling element, which comprises a retainer body, the surface of the retainer body is provided with a plurality of placing grooves, one side of the inner wall of each placing groove is fixedly connected with a limiting ring through laser welding, the inner wall of each limiting ring is in threaded connection with a base plate, and the inner wall of each base plate is in threaded connection with a bearing. One side of the base plate is provided with a groove, the other side of the base plate is fixedly connected with an expansion plate, and the surface of the expansion plate is provided with an expansion groove. According to the bearing retainer structure for the automobile rolling element, the base plate, the grooves, the expansion plates and the expansion grooves are jointly arranged, the retainer is in contact with bearing beads through the expansion grooves in the surfaces of the expansion plates, each independent expansion plate can be replaced, and the base plate is in threaded connection with the limiting ring, so that when a bearing goes wrong, the bearing is not damaged, and the bearing is not damaged. And only the expanding groove which is seriously abraded and the accessory mechanism thereof need to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a bearing cage structure for automotive rolling elements. Background Technique

[0002] The bearing cage is an important component in the bearing. Its main function is to separate the bearing balls and ensure that they maintain an appropriate spacing during rotation to reduce wear and friction.

[0003] The patent with the authorization announcement number CN214534086U discloses a bearing cage for automotive rolling element bearings, including an outer ring. A groove is provided on the inner side of the outer ring, and a cage assembly is arranged on the inner side of the groove. The cage assembly includes a first cage and a second cage. Through the settings of the outer ring, groove, cage assembly, first cage, second cage, clamping block, clamping groove, placement groove, rolling element, placement block, first cavity, second cavity, inner ring, rolling track and retaining ring, the patent achieves the advantage of long service life and solves the problem of short service life of the existing bearing cage. When people use the bearing cage, it can better lubricate the rolling elements, prevent excessive friction between the rolling elements and the bearing cage, avoid shortening the service life of the bearing cage, and the bearing cage is convenient to disassemble, improving the practicability of the device and facilitating people's use.

[0004] As shown in the above technology, when the bearing cage of automotive rolling elements is in use, the contact surface between the bearing balls and the cage will experience continuous friction, especially during the operation of the bearing. Although lubricants are usually added inside the bearing to reduce friction, even a tiny frictional force will cause the contact surface to gradually wear. When the wear is severe, the entire cage needs to be replaced, resulting in a high cost. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a bearing cage structure for automotive rolling elements, which solves the problem of high cost when the entire cage needs to be replaced due to severe wear.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A bearing cage structure for automotive rolling elements, including a cage body. A number of placement grooves are provided on the surface of the cage body. One side of the inner wall of the placement groove is fixedly connected by laser welding with a limiting ring. The inner wall of the limiting ring is threadedly connected with a base plate. A groove is provided on one side of the base plate, and an extension plate is fixedly connected to the other side of the base plate. Extension grooves are provided on the surface of the extension plate.

[0007] Preferably, a ring groove is provided on the surface of the cage body. The ring groove is located in the middle of the cage body and its surface is polished smoothly.

[0008] Preferably, one side of the surface of the cage body is fixedly connected with an annular reinforcing rib, and the annular reinforcing rib is located at the top and bottom of the outer side of the surface of the cage body and the number is two.

[0009] Preferably, auxiliary plates are arranged at the top and bottom of the surface of the cage body, and the shape of the auxiliary plate is annular.

[0010] Preferably, heat dissipation holes are formed in the surface of the auxiliary plate, and the heat dissipation holes are uniformly arranged and the number is set to be multiple.

[0011] Preferably, a guiding block is fixedly connected to the inner wall of the cage body, an oil guiding groove is formed in the inner wall of the guiding block, and the oil guiding groove is located in the middle of the guiding block and is arc-shaped.

[0012] The utility model provides a bearing cage structure for automotive rolling elements. Compared with the prior art, the following beneficial effects are achieved:

[0013] (1) For the bearing cage structure for automotive rolling elements, by the combined setting of the base plate, the groove, the extension plate and the extension groove, the cage adopts the extension groove on the surface of the extension plate to contact with the bearing balls, and each independent extension plate can be replaced. It adopts the threaded connection between the base plate and the limiting ring. When problems occur in the bearing, only the severely worn extension groove and its affiliated mechanisms need to be replaced, which can avoid directly replacing the whole cage, greatly reducing the replacement cost, and with the threaded connection, the overall reliability is relatively high.

[0014] (2) For the bearing cage structure for automotive rolling elements, by the setting of the auxiliary plate and the heat dissipation holes, the heat generated during the operation of the cage body can be quickly dissipated to the outside. Through the setting of the annular groove, the surface area of the cage is directly increased, further improving the heat dissipation capacity. Through the setting of the guiding block and the oil guiding groove, the flow channel of the lubricating oil is guaranteed, which can promote the flow of the lubricating oil inside the bearing and further assist in heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0016] Figure 2 is of the present utility model Figure 1 a partial enlarged view at A in;

[0017] Figure 3 is a three-dimensional sectional view of the present utility model;

[0018] Figure 4 is of the present utility model Figure 3 a partial enlarged view at B in.

[0019] In the figure: 1. Cage body; 2. Placing groove; 3. Limiting ring; 4. Annular groove; 5. Annular reinforcing rib; 6. Auxiliary plate; 7. Heat dissipation hole; 8. Guide block; 9. Oil guiding groove; 10. Base plate; 11. Groove; 12. Expansion plate; 13. Expansion groove. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 - 4 , the present invention provides two technical solutions:

[0022] Embodiment 1, a bearing cage structure for automotive rolling elements, including a cage body 1. A plurality of placing grooves 2 are formed on the surface of the cage body 1. One side of the inner wall of the placing groove 2 is fixedly connected by laser welding with a limiting ring 3. The surface of the limiting ring 3 is polished into a rounded corner. The inner wall of the limiting ring 3 is threadedly connected with a base plate 10. A groove 11 is provided on one side of the base plate 10. Anti-slip patterns are arranged inside the groove 11 to facilitate manual rotation and disassembly by the staff. An expansion plate 12 is fixedly connected to the other side of the base plate 10. An expansion groove 13 is formed on the surface of the expansion plate 12. By using the combined setting of the base plate 10, the groove 11, the expansion plate 12, and the expansion groove 13, the cage contacts the bearing balls through the expansion groove 13 on the surface of the expansion plate 12. Each independent expansion plate 12 can be replaced. It uses the threaded connection between the base plate 10 and the limiting ring 3. When a problem occurs with the bearing, only the severely worn expansion groove 13 and its affiliated mechanisms need to be replaced, which can avoid directly replacing the entire cage, greatly reducing the replacement cost, and using threaded connection, the overall reliability is relatively high.

[0023] Embodiment 2, the main difference from Embodiment 1 is: a bearing cage structure for automotive rolling elements. An annular groove 4 is provided on the surface of the cage body 1. The annular groove 4 is located in the middle of the cage body 1 and its surface is polished smoothly. One side of the surface of the cage body 1 is fixedly connected with an annular reinforcing rib 5. The annular reinforcing rib 5 is located at the top and bottom on the outer side of the surface of the cage body 1 and the number is two. Auxiliary plates 6 are provided at both the top and bottom of the surface of the cage body 1. The shape of the auxiliary plate 6 is annular. Heat dissipation holes 7 are provided on the surface of the auxiliary plate 6. The heat dissipation holes 7 are evenly arranged and the number is set to be multiple. A guide block 8 is fixedly connected to the inner wall of the cage body 1. An oil guide groove 9 is provided in the inner wall of the guide block 8. The oil guide groove 9 is located in the middle of the guide block 8 and is arc-shaped. By the arrangement of the auxiliary plate 6 and the heat dissipation holes 7, the heat generated when the cage body 1 works can be dissipated to the outside as soon as possible. Through the arrangement of the annular groove 4, the surface area of the cage is directly increased, further improving the heat dissipation capacity. Through the arrangement of the guide block 8 and the oil guide groove 9, the flow channel of the engine oil is guaranteed, which can promote the flow of the engine oil inside the bearing and further assist in heat dissipation.

[0024] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0025] During operation, the entire cage body 1 is installed inside the constant velocity joint. When the bearing balls cause serious wear to it, the bearing is disassembled, and the severely worn extension plate 12 and extension groove 13 are replaced. Press the groove 11 on the surface of the base plate 10 by hand and rotate it, then the whole of the base plate 10, the groove 11, the extension plate 12, and the extension groove 13 can be separated from the inner wall of the limit ring 3. After replacement, the bearing is assembled and restored.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing cage structure for automotive rolling elements, characterized in that, It includes a cage body (1), several placing grooves (2) are formed on the surface of the cage body (1), a limiting ring (3) is fixedly connected to one side of the inner wall of the placing groove (2) by laser welding, a base plate (10) is threadedly connected to the inner wall of the limiting ring (3), a groove (11) is arranged on one side of the base plate (10), an extension plate (12) is fixedly connected to the other side of the base plate (10), and an extension groove (13) is formed on the surface of the extension plate (12).

2. The bearing cage structure for automotive rolling elements according to claim 1, wherein: A circular groove (4) is formed on the surface of the cage body (1), and the circular groove (4) is located in the middle of the cage body (1) and its surface is polished smoothly.

3. The bearing cage structure for automotive rolling elements according to claim 1, characterized in that: A circular reinforcing rib (5) is fixedly connected to one side of the surface of the cage body (1), and the circular reinforcing rib (5) is located at the top and bottom of the outer side of the surface of the cage body (1) and the number is two.

4. The bearing cage structure for automotive rolling elements according to claim 1, characterized in that: Auxiliary plates (6) are arranged on both the top and bottom of the surface of the cage body (1), and the shape of the auxiliary plate (6) is circular.

5. The bearing cage structure for automotive rolling elements according to claim 4, characterized in that: Heat dissipation holes (7) are formed on the surface of the auxiliary plate (6), and the heat dissipation holes (7) are evenly arranged and the number is set to be multiple.

6. The bearing cage structure for automotive rolling elements according to claim 1, characterized in that: A guiding block (8) is fixedly connected to the inner wall of the cage body (1), an oil guiding groove (9) is formed on the inner wall of the guiding block (8), and the oil guiding groove (9) is located in the middle of the guiding block (8) and is arc-shaped.

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