A type of hub bearing

Abstract

This utility model discloses a wheel hub bearing, relating to the field of bearing technology. The key technical features are: it includes an outer bearing ring and an inner bearing ring, with a first ball bearing and a second ball bearing disposed between the outer and inner rings. The inner wall of the outer bearing ring has a first annular groove for inserting the first ball bearing and a second annular groove for inserting the second ball bearing. The openings of the first and second annular grooves are opposite to each other, with the first annular groove located above the second annular groove. The inner bearing ring includes a base with a plug on it. The plug is inserted into the outer bearing ring and passes through the first and second ball bearings sequentially. The plug has a threaded connector protruding from the outer ring. This wheel hub bearing allows for easy replacement of the first and second ball bearings, facilitating disassembly and assembly, resulting in a longer service life. Furthermore, it is made of GCr15 steel, offering good durability.

Description

Technical Field

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

[0002] Automotive wheel hub bearings are one of the key components of a car. Their main function is to bear weight and provide precise guidance for the rotation of the wheel hub, which requires them to withstand not only axial loads but also radial loads.

[0003] Currently, wheel hub bearings mainly consist of an outer ring and an inner ring. The inner ring connects to the half-shaft, and the outer ring connects to the wheel hub. Two rows of ball bearings are positioned between the outer and inner rings. These ball bearings function primarily through the rolling of internal balls. Over time, these balls wear down, affecting the normal operation of the wheel hub bearing. However, existing wheel hub bearings typically use a riveting process for structural fixation. While this provides good structural stability, the riveting connection is a permanent deformation connection, meaning that once assembled, the wheel hub bearing cannot be disassembled. Damage to the balls necessitates replacing the entire wheel hub bearing, resulting in a short service life. Utility Model Content

[0004] The purpose of this utility model is to provide a hub bearing to solve the above-mentioned problems.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a wheel hub bearing, comprising an outer bearing ring and an inner bearing ring, wherein a ball bearing 1 and a ball bearing 2 are disposed between the outer bearing ring and the inner bearing ring; a first annular groove for embedding the ball bearing 1 and a second annular groove for embedding the ball bearing 2 are formed on the inner sidewall of the outer bearing ring, the openings of the first annular groove and the second annular groove are opposite to each other, and the first annular groove is located above the second annular groove; the inner bearing ring includes a base, and a plug is disposed on the base; the plug is used to insert into the inner side of the outer bearing ring and sequentially pass through the ball bearing 1 and the ball bearing 2; the plug is provided with a threaded connector protruding from the outer side of the outer bearing ring; a threaded sleeve is threadedly connected to the threaded connector; a first pressure plate is disposed on the threaded sleeve; the first pressure plate is used to press the ball bearing 1 into the first annular groove; a second pressure plate is disposed at the end of the plug away from the threaded connector; the second pressure plate is used to press the ball bearing 2 into the second annular groove.

[0006] As a further feature of this invention, when the threaded sleeve is threadedly connected to the threaded joint, an oil injection gap is formed between the first pressure plate and the inner wall of the outer ring of the bearing.

[0007] As a further feature of this invention, the ball bearing includes an inner ring and an outer ring, a retainer is provided between the inner ring and the outer ring, a plurality of rolling balls are provided in the retainer, and a closing ring for embedding between the inner ring and the outer ring is provided on the second pressure plate.

[0008] As a further feature of this invention, a groove is provided at the bottom of the base, and a pinching block is provided inside the groove.

[0009] As a further feature of this invention, anti-slip protrusions are provided on the outer wall of the threaded sleeve.

[0010] As a further feature of this invention, both the outer ring and the inner ring of the bearing are made of GCr15 steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: During assembly, this invention allows for the initial insertion of ball bearing 1 into the first annular groove and ball bearing 2 into the second annular groove. A plug is then inserted into the outer ring of the bearing, passing through both ball bearings until the threaded connector protrudes from the outer ring. A threaded sleeve is then threaded onto the connector and continuously tightened until the first pressure plate presses ball bearing 1 firmly into the first annular groove, and the second pressure plate presses ball bearing 2 firmly into the second annular groove. This completes the assembly of the outer and inner rings of the bearing, allowing ball bearings 1 and 2 to be installed between them, thus assembling the wheel hub bearing. If either ball bearing 1 or 2 is damaged, simply unscrew the threaded sleeve from the connector and pull the plug out of the outer ring to release the fixation. This allows for direct removal and replacement of ball bearings 1 and 2 from the outer ring, facilitating easy disassembly and assembly and extending the service life of the wheel hub bearing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a half-sectional view of the present invention; Figure 4 This is a half-sectional view of the outer ring of the bearing in this utility model.

[0013] Reference numerals: 1. Outer ring of bearing; 2. Inner ring of bearing; 3. Ball bearing one; 4. Ball bearing two; 5. First annular groove; 6. Second annular groove; 7. Base; 8. Plug; 9. Threaded connector; 10. Threaded sleeve; 11. First pressure plate; 12. Second pressure plate; 13. Inner ring; 14. Outer ring; 15. Cage; 16. Ball; 17. Closing ring; 18. Groove; 19. Grip block; 20. Anti-slip protrusion. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4As shown, a hub bearing includes an outer ring 1 and an inner ring 2, both made of GCr15 steel, which has good strength and toughness and high durability. A ball bearing 3 and a ball bearing 4 are disposed between the outer ring 1 and the inner ring 2. A first annular groove 5 for inserting the ball bearing 3 and a second annular groove 6 for inserting the ball bearing 4 are formed on the inner wall of the outer ring 1. The openings of the first annular groove 5 and the second annular groove 6 are opposite to each other, with the first annular groove 5 located above the second annular groove 6. The inner ring 2 includes a base 7, on which a plug 8 is disposed. The plug 8 is used to insert into the outer ring 1 and sequentially pass through the balls. Bearing 3 and ball bearing 4 are provided with a threaded connector 9 protruding from the outer ring 1 of the bearing on the plug 8. A threaded sleeve 10 is threadedly connected to the threaded connector 9. A first pressure plate 11 is provided on the threaded sleeve 10. The first pressure plate 11 is used to press the ball bearing 3 into the first annular groove 5. A second pressure plate 12 is provided at the end of the plug 8 away from the threaded connector 9. The second pressure plate 12 is used to press the ball bearing 4 into the second annular groove 6. Therefore, when assembling the hub bearing, the ball bearing 3 can be inserted into the first annular groove 5 first, the ball bearing 4 can be inserted into the second annular groove 6, and then the plug 8 can be inserted into the outer ring 1 of the bearing, and the ball bearings can be inserted through the plug 8 in sequence. The ball bearing 3 and the ball bearing 4 are connected together, so that the threaded connector 9 protrudes outside the outer ring 1 of the bearing. Then, the threaded sleeve 10 is threaded onto the threaded connector 9 and continuously screwed until the first pressure plate 11 presses the ball bearing 3 into the first annular groove 5, thereby pressing the ball bearing 4 into the second annular groove 6 by the second pressure plate 12. This achieves the combination of the outer ring 1 and the inner ring 2 of the bearing, and the ball bearing 3 and the ball bearing 4 are installed between the outer ring 1 and the inner ring 2 of the bearing, realizing the assembly of the hub bearing. If the ball bearing 3 or the ball bearing 4 is damaged, simply unscrew the threaded sleeve 10 from the threaded connector 9 and then pull the plug 8 out from the outer ring 1 of the bearing. The fixing of ball bearing 3 and ball bearing 4 can be released, allowing them to be directly removed from the outer ring 1 of the bearing for replacement. This facilitates easy disassembly and assembly, resulting in a longer service life for the hub bearing. A groove 18 is provided at the bottom of the base 7, and a pinch block 19 is provided inside the groove 18. By pinching the pinch block 19, the plug 8 can be inserted into or pulled out of the outer ring 1 of the bearing. The pinch block 19 makes the insertion and removal operation easier and less strenuous. Anti-slip protrusions 20 are provided on the outer wall of the threaded sleeve 10, which greatly increases the coefficient of friction on the outer wall of the threaded sleeve 10, making it less likely to slip when screwing the threaded sleeve 10.

[0016] Please see Figure 1 , Figure 3As shown, when the threaded sleeve 10 is threadedly connected to the threaded connector 9, an oil injection gap is formed between the first pressure plate 11 and the inner wall of the outer ring 1 of the bearing. When it is necessary to lubricate the ball bearing 3 and the ball bearing 4, the lubricating oil can be directly injected through the oil injection gap without disassembling the hub bearing. The operation is relatively convenient and simple. The ball bearing 4 includes an inner ring 13 and an outer ring 14. A retainer 15 is provided between the inner ring 13 and the outer ring 14. Several rolling balls 16 are provided in the retainer 15. A closing ring 17 for embedding between the inner ring 13 and the outer ring 14 is provided on the second pressure plate 12. After the lubricating oil is injected, the closing ring 17 can prevent the lubricating oil from leaking, thereby improving the lubrication effect.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hub bearing, comprising an outer bearing ring (1) and an inner bearing ring (2), wherein a ball bearing first (3) and a ball bearing second (4) are disposed between the outer bearing ring (1) and the inner bearing ring (2), characterized in that: The inner wall of the bearing outer ring (1) has a first annular groove (5) for embedding ball bearing one (3) and a second annular groove (6) for embedding ball bearing two (4). The openings of the first annular groove (5) and the second annular groove (6) are opposite to each other. The first annular groove (5) is located above the second annular groove (6). The bearing inner ring (2) includes a base (7). A plug (8) is provided on the base (7). The plug (8) is used to insert into the bearing outer ring (1) and pass through the ball bearing one (3) and the ball bearing in sequence. The plug (4) is provided with a threaded connector (9) protruding from the outer ring (1) of the bearing. A threaded sleeve (10) is threadedly connected to the threaded connector (9). A first pressure plate (11) is provided on the threaded sleeve (10). The first pressure plate (11) is used to press the ball bearing (3) into the first annular groove (5). A second pressure plate (12) is provided at the end of the plug (8) away from the threaded connector (9). The second pressure plate (12) is used to press the ball bearing (4) into the second annular groove (6).

2. A hub bearing according to claim 1, characterized in that: When the threaded sleeve (10) is threaded onto the threaded joint (9), an oil injection gap is formed between the first pressure plate (11) and the inner wall of the bearing outer ring (1).

3. A hub bearing according to claim 2, characterized in that: The ball bearing 2 (4) includes an inner ring (13) and an outer ring (14). A retainer (15) is provided between the inner ring (13) and the outer ring (14). A plurality of rolling balls (16) are provided in the retainer (15). A closing ring (17) for embedding between the inner ring (13) and the outer ring (14) is provided on the second pressure plate (12).

4. A hub bearing according to claim 1, characterized in that: The base (7) has a groove (18) at the bottom, and a pinch block (19) is provided inside the groove (18).

5. A hub bearing according to claim 1, characterized in that: The outer wall of the threaded sleeve (10) is provided with anti-slip protrusions (20).

6. A hub bearing according to claim 1, characterized in that: Both the outer ring (1) and the inner ring (2) of the bearing are made of GCr15 steel.

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