High-strength pressure-resistant hub bearing

Abstract

The utility model relates to a kind of high-strength pressure-resistant hub bearing.It solves the problem that the inner ball of the hub bearing is easily displaced when it bears larger pressure in prior art.It includes a bearing inner ring with inner ring flange at one end, the bearing outer ring with outer ring flange is set at the circumferential outside of bearing inner ring, clamping type ball structure is set between bearing inner ring and bearing outer ring, linkage assembly is set between clamping type ball structure, and plug-in type rotation positioning assembly is set between bearing inner ring and bearing outer ring.The utility model has the advantages of improving the running stability of bearing, effectively preventing the deviation of ball under stress or rotation, and significantly improving the load stability of ball.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a high-strength, pressure-resistant wheel hub bearing. Background Technology

[0002] The main function of wheel hub bearings is to bear weight and provide precise guidance for the rotation of the wheel hub. They bear both axial and radial loads, making them a crucial component. In automotive wheel hub bearings, the smooth relative rotation of the outer and inner rings contributes to the overall structural stability of the bearing. However, the sealing cap is directly fitted onto the outer ring surface. Because there is no limiting structure between the sealing cap and the outer ring, the sealing cap is prone to detachment or loosening over long-term use. This can cause displacement of the sensor, affecting speed detection accuracy. Furthermore, the lack of a sealing structure allows rainwater to easily seep into the sealing cap during rainy weather, causing moisture damage to the sensor and shortening its lifespan. In addition, existing automotive wheel hub bearings are prone to ball displacement under high pressure, resulting in poor stability and frequent vibrations, negatively impacting the user experience.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses an automotive wheel hub bearing [CN202421133583.0], which includes an inner ring and an outer ring. The outer ring is movably fitted onto the surface of the inner ring. A sealing cover is fitted onto the right side of the outer ring surface. Positioning mechanisms are fixedly connected to the top and bottom of the sealing cover. Positioning grooves are formed on the right side of the top and bottom of the outer ring surface. A sealing groove is formed on the right side of the outer ring surface. A sealing ring is fitted onto the right side of the outer ring surface. A groove is formed on the inner wall of the sealing cover. An air bladder is placed in the inner cavity of the groove. An air nozzle is connected to the top of the air bladder.

[0004] The above solution has solved the problem of poor sealing performance of wheel hub bearings in the prior art to a certain extent. However, the solution still has many shortcomings, such as the inner balls being prone to displacement and poor stability when subjected to high pressure. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a high-strength, pressure-resistant wheel hub bearing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength pressure-resistant wheel hub bearing, comprising an inner bearing ring with an inner flange at one end, an outer bearing ring with an outer flange at one end arranged circumferentially outside the inner bearing ring, a snap-fit ​​ball structure between the inner bearing ring and the outer bearing ring, a linkage component between the snap-fit ​​ball structures, and a plug-in rotation positioning component between the inner bearing ring and the outer bearing ring.

[0007] In the aforementioned high-strength pressure-resistant wheel hub bearing, the snap-fit ​​ball structure includes a lower ball positioning groove disposed on the outer circumferential wall of the inner ring of the bearing, an upper ball positioning groove disposed on the inner wall of the outer ring of the bearing corresponding to the lower ball positioning groove, and a plurality of balls disposed between the upper ball positioning groove and the lower ball positioning groove.

[0008] In the aforementioned high-strength pressure-resistant hub bearing, a rotational clearance is provided between the outer circumferential wall of the inner ring and the inner circumferential wall of the outer ring.

[0009] In the aforementioned high-strength pressure-resistant wheel hub bearing, the linkage assembly includes a rotating linkage bearing disposed between the outer circumferential wall of the inner ring of the bearing and the inner circumferential wall of the outer ring of the bearing. Both ends of the rotating linkage bearing are connected to adjacent balls through several linkage parts.

[0010] In the aforementioned high-strength pressure-resistant hub bearing, the rotating linkage bearing includes a linkage outer ring and a linkage inner ring, with movable balls disposed between the linkage inner ring and the linkage outer ring, and the linkage part is connected to the outer wall of the linkage inner ring or the linkage inner ring of the rotating linkage bearing.

[0011] In the aforementioned high-strength pressure-resistant wheel hub bearing, a rotating linkage ring is provided on the outer circumferential wall of the inner ring of the bearing and on the side of the ball. The rotating linkage ring is provided with a linkage positioning groove on the side facing the ball, into which the ball can be engaged, and the ball is engaged in the linkage positioning groove.

[0012] In the aforementioned high-strength pressure-resistant wheel hub bearing, there is an anti-contact gap between the outer circumferential wall of the rotating linkage ring and the inner circumferential wall of the bearing.

[0013] In the aforementioned high-strength pressure-resistant wheel hub bearing, the plug-in rotation positioning assembly includes a plug-in cylinder disposed on the outer side of the inner ring of the bearing, and an annular plug-in groove is provided on the outer ring of the bearing for the plug-in cylinder to be inserted.

[0014] In the aforementioned high-strength pressure-resistant wheel hub bearing, the inner wall of the outer ring flange is provided with an annular positioning groove for positioning the insertion cylinder.

[0015] In the aforementioned high-strength pressure-resistant wheel hub bearing, a support connecting cylinder is provided at one end of the insert cylinder near the inner ring flange. One end of the support connecting cylinder is inserted into the first connecting slot on the inner ring flange through the first annular connecting part, and the other end of the support connecting cylinder is inserted into the second connecting slot on the outer wall of the bearing outer ring through the second annular connecting part.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. By cooperating with the lower and upper positioning grooves of the ball, the ball is bidirectionally limited. Together with the linkage positioning groove of the rotating linkage ring, the ball is additionally locked and limited to prevent it from moving under high-speed rotation or complex force, thus ensuring the stability of the operation. It effectively prevents the ball from shifting when under force or rotation, significantly improves the load-bearing stability of the ball, and thus enhances the overall pressure resistance of the bearing.

[0018] 2. Rotary linkage bearings connect adjacent balls through linkage parts, which can distribute the load borne by a single ball to multiple balls, avoiding structural damage caused by local overload. Combined with the movable ball design of the rotary linkage bearing itself, the force transmission path is further optimized, making the overall force more uniform and greatly improving the high strength characteristics of the bearing.

[0019] 3. The synergistic effect of the linkage component and the snap-fit ​​ball structure makes the ball bearing more evenly stressed and moves more synchronously, reducing abnormal wear of individual balls; at the same time, the precise positioning of the plug-in positioning component reduces the aggravation of local friction caused by misalignment, thus extending the service life of the bearing in many ways. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the bearing inner ring structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the bearing outer ring structure in this utility model;

[0024] Figure 5 This is a schematic diagram of the plug-in rotary positioning component structure in this utility model;

[0025] In the diagram: 1. Inner ring of bearing; 11. Inner ring flange of bearing; 2. Outer ring flange of bearing; 21. Snap-fit ​​ball structure; 3. Lower positioning groove of ball; 32. Upper positioning groove of ball; 33. Ball; 34. Rotation clearance; 4. Linkage assembly; 41. Rotation linkage bearing; 411. Linkage outer ring; 412. Linkage inner ring; 413. Movable ball; 42. Linkage part; 5. Plug-in rotation positioning assembly; 51. Plug-in cylinder; 52. Annular plug-in through groove; 53. Annular positioning slot; 54. Support connecting cylinder; 541. First annular connecting part; 542. First connecting slot; 543. Second annular connecting part; 544. Second connecting slot; 6. Rotation linkage ring; 61. Linkage positioning groove. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-5 As shown, a high-strength pressure-resistant wheel hub bearing includes an inner bearing ring 1 with an inner ring flange 11 at one end, an outer bearing ring 2 with an outer ring flange 21 at one end, a snap-fit ​​ball structure 3 between the inner bearing ring 1 and the outer bearing ring 2, a linkage component 4 between the snap-fit ​​ball structures 3, and a plug-in rotation positioning component 5 between the inner bearing ring 1 and the outer bearing ring 2.

[0028] The snap-fit ​​ball structure 3 includes a lower ball positioning groove 31 disposed on the outer circumferential wall of the inner ring 1 of the bearing, an upper ball positioning groove 32 disposed on the inner wall of the outer ring 2 of the bearing corresponding to the lower ball positioning groove 31, and a plurality of balls 33 disposed between the upper ball positioning groove 32 and the lower ball positioning groove 33.

[0029] The upper positioning groove 32 and the lower positioning groove of the ball 33 form a preliminary positioning for the ball 33.

[0030] As can be seen, a rotational clearance 34 is provided between the outer wall of the inner ring 1 and the inner wall of the outer ring 2.

[0031] Furthermore, the linkage assembly 4 includes a rotating linkage bearing 41 disposed between the outer circumferential wall of the inner ring 1 and the inner circumferential wall of the outer ring 2 of the bearing. Both ends of the rotating linkage bearing 41 are connected to the balls 33 that are close to each other through a plurality of linkage parts 42.

[0032] Specifically, the rotary linkage bearing 41 includes a linkage outer ring 411 and a linkage inner ring 412. A movable ball 413 is provided between the linkage inner ring 412 and the linkage outer ring 411. The linkage part 42 is connected to the outer wall of the linkage inner ring 412 or the linkage inner ring 412 of the rotary linkage bearing 41.

[0033] The rotating linkage bearing 41 is used to increase pressure bearing capacity and enhance structural stability, and the balls 33 located on both sides can rotate synchronously, improving linkage stability in high pressure application scenarios.

[0034] Furthermore, a rotating linkage ring 6 is provided on the outer wall of the inner ring 1 of the bearing and on the side of the ball 33. The rotating linkage ring 6 is provided on the side of the ball 33 that is facing the ball 33, and the ball 33 is engaged in the linkage positioning groove 61.

[0035] The rotating linkage ring 6 can rotate synchronously along the outer wall of the inner ring 1 of the bearing. The linkage positioning groove 61 provides lateral positioning for the ball 33 to prevent the ball 33 from shifting due to excessive pressure.

[0036] More specifically, there is an anti-contact gap between the outer circumferential wall of the rotating linkage ring and the inner circumferential wall of the bearing.

[0037] An anti-contact gap is provided to reduce friction during rotation.

[0038] In detail, the plug-in rotary positioning assembly 5 includes a plug-in cylinder 51 arranged circumferentially outward of the inner ring 1 of the bearing, and an annular plug-in through groove 52 on the outer ring 2 of the bearing into which the plug-in cylinder 51 can be inserted.

[0039] The insert cylinder 51 is used to enhance the support thickness and connection stability, and to prevent displacement and separation when the bearing is under overall stress.

[0040] Preferably, the inner wall of the outer flange 21 is provided with an annular positioning slot 53 for positioning the insertion cylinder 51.

[0041] An elastic clamping part is provided inside the annular positioning slot 53, which can be elastically clamped after one end of the positioning insertion cylinder 51 is inserted.

[0042] In addition, a support connecting cylinder 54 is provided at one end of the insertion cylinder 51 near the inner ring flange 11. One end of the support connecting cylinder 54 is inserted into the first connecting slot 542 on the inner ring flange 11 through the first annular connecting part 541, and the other end of the support connecting cylinder 54 is inserted into the second connecting slot 544 on the outer wall of the bearing outer ring 2 through the second annular connecting part 543.

[0043] When the first annular connecting part 541 is inserted into the first connecting slot 542 and the second annular connecting part 543 is inserted into the second connecting slot 544, the outer wall of the supporting connecting cylinder 54 is flush with the outer wall of the bearing outer ring 2.

[0044] In summary, the principle of this embodiment is as follows: the lower positioning groove 31 of the inner ring 1 of the bearing and the upper positioning groove 32 of the outer ring 2 of the bearing cooperate to initially position the ball 33. The linkage positioning groove 61 of the linkage ring 6 forms an additional locking limit for the ball, preventing the ball from moving under high-speed rotation or complex force, thus ensuring the stability of the operation. Secondly, the rotating linkage bearing 41 connects the ball 33 through the linkage part 42. The internal moving ball 413 makes the balls 33 on both sides rotate synchronously, distributing the load and enhancing the pressure resistance stability. Furthermore, the plug-in rotating positioning component 5 forms a multi-node stable connection between the inner ring 1 and the outer ring 2 of the bearing, improving the structural stability.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0046] Although this document frequently uses terms such as bearing inner ring 1, inner ring flange 11, bearing outer ring 2, outer ring flange 21, snap-fit ​​ball structure 3, lower ball positioning groove 31, upper ball positioning groove 32, ball 33, rotation clearance 34, linkage assembly 4, rotation linkage bearing 41, linkage outer ring 411, linkage inner ring 412, movable ball 413, linkage part 42, plug-in rotation positioning assembly 5, plug-in cylinder 51, annular plug-in through groove 52, annular positioning slot 53, support connecting cylinder 54, first annular connecting part 541, first connecting slot 542, second annular connecting part 543, second connecting slot 544, rotation linkage ring 6, and linkage positioning groove 61, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A high-strength, pressure-resistant wheel hub bearing, comprising an inner bearing ring (1) with an inner ring flange (11) at one end, and an outer bearing ring (2) with an outer ring flange (21) at one end, circumferentially outwardly disposed on the inner bearing ring (1), characterized in that, A snap-fit ​​ball structure (3) is provided between the inner ring (1) and the outer ring (2) of the bearing, and a linkage component (4) is provided between the snap-fit ​​ball structures (3), and a plug-in rotation positioning component (5) is provided between the inner ring (1) and the outer ring (2) of the bearing.

2. The high-strength, pressure-resistant wheel hub bearing according to claim 1, characterized in that, The snap-fit ​​ball structure (3) includes a lower ball positioning groove (31) provided on the circumferential outer wall of the inner ring (1) of the bearing, and an upper ball positioning groove (32) provided on the inner wall of the outer ring (2) of the bearing corresponding to the lower ball positioning groove (31). A plurality of balls (33) are provided between the upper ball positioning groove (32) and the lower ball positioning groove (33).

3. A high-strength, pressure-resistant wheel hub bearing according to claim 2, characterized in that, A rotation clearance (34) is provided between the outer circumferential wall of the inner ring (1) of the bearing and the inner circumferential wall of the outer ring (2) of the bearing.

4. A high-strength, pressure-resistant wheel hub bearing according to claim 3, characterized in that, The linkage component (4) includes a rotating linkage bearing (41) disposed between the outer circumferential wall of the inner ring (1) and the inner circumferential wall of the outer ring (2). The two ends of the rotating linkage bearing (41) are connected to the balls (33) that are close to each other through a plurality of linkage parts (42).

5. A high-strength, pressure-resistant wheel hub bearing according to claim 4, characterized in that, The rotating linkage bearing (41) includes a linkage outer ring (411) and a linkage inner ring (412). A movable ball (413) is provided between the linkage inner ring (412) and the linkage outer ring (411). The linkage part (42) is connected to the outer wall of the linkage inner ring (412) or the linkage inner ring (412) of the rotating linkage bearing (41).

6. A high-strength, pressure-resistant wheel hub bearing according to claim 3, characterized in that, The inner ring (1) of the bearing is provided with a rotating linkage ring (6) on the outer circumferential side and on the side of the ball (33). The rotating linkage ring (6) is provided with a linkage positioning groove (61) on the side facing the ball (33) so that the ball (33) can be inserted, and the ball (33) is engaged in the linkage positioning groove (61).

7. A high-strength, pressure-resistant wheel hub bearing according to claim 6, characterized in that, The rotating linkage ring (6) has a circumferential outer wall and a circumferential inner wall of the bearing to prevent contact.

8. A high-strength, pressure-resistant wheel hub bearing according to claim 1, characterized in that, The plug-in rotating positioning assembly (5) includes a plug-in cylinder (51) located on the outer side of the inner ring (1) of the bearing, and an annular plug-in groove (52) is provided on the outer ring (2) of the bearing for the plug-in cylinder (51) to be inserted.

9. A high-strength, pressure-resistant wheel hub bearing according to claim 8, characterized in that, The inner wall of the outer flange (21) is provided with an annular positioning slot (53) for positioning the insertion cylinder (51).

10. A high-strength, pressure-resistant wheel hub bearing according to claim 9, characterized in that, The insertion cylinder (51) is provided with a support connecting cylinder (54) at one end near the inner ring flange (11). One end of the support connecting cylinder (54) is inserted into the first connecting slot (542) on the inner ring flange (11) through the first annular connecting part (541), and the other end of the support connecting cylinder (54) is inserted into the second connecting slot (544) on the outer wall of the bearing outer ring (2) through the second annular connecting part (543).

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