Oil seepage prevention hub bearing

Abstract

The utility model relates to the technical field of hub bearings, in particular to an oil seepage prevention hub bearing which comprises an inner flange ring, a bolt and an outer flange ring, the bolt is arranged at the right end of the inner flange ring, and the right end of the inner flange ring is fixedly connected with an outer ring bearing. When one end face, close to the inner ring bearing, of the sealing ring is abraded and becomes short, the first compression spring can provide reverse acting force to enable the sealing ring to move towards the inner side, so that the sealing ring continues to be attached to the gap between the outer ring bearing and the inner ring bearing, and the gap between the outer ring bearing and the inner ring bearing is sealed; and meanwhile, a second compression spring can also provide a reverse acting force to drive a sealing gasket to move towards the inner side through a supporting annular plate, so that the sealing gasket compensates the joint of the sealing ring and the outer ring bearing and the joint of the sealing ring and the inner ring bearing, gaps are reduced, the oil seepage prevention effect of the hub bearing is effectively improved, and the service life of the hub bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hub bearings, and particularly relates to an oil-proof hub bearing. Background Technique

[0002] The hub bearing is one of the key components of an automobile. Its main function is to bear the weight and provide precise guidance for the rotation of the hub. The hub bearing is a bearing installed at the drive shaft and hub of the automobile, mainly playing the role of bearing weight and guiding the hub. The hub bearing usually includes a flange ring, an outer ring, an inner ring, a cage and a number of rollers.

[0003] When the existing hub bearing is in use, the sealing ring seals the connection between the inner ring and the outer ring. However, during the driving process of the automobile, the rotation of the inner ring driving the rollers easily causes friction to the sealing ring, resulting in a poor sealing effect of the sealing ring and oil leakage. As a result, dust easily enters the raceway from the sealed part, making the hub bearing prone to damage, thereby reducing the overall service life. Therefore, in view of the above problems, we propose an oil-proof hub bearing. Content of the Utility Model

[0004] The purpose of the utility model is to provide an oil-proof hub bearing to solve the problems that during the driving process of the automobile, the rotation of the inner ring driving the rollers easily causes friction to the sealing ring, resulting in a poor sealing effect of the sealing ring and oil leakage, and dust easily enters the raceway from the sealed part, making the hub bearing prone to damage, thereby reducing the overall service life.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An oil-proof hub bearing includes an inner flange ring, bolts and an outer flange ring. A bolt is provided at the right end of the inner flange ring. The right end of the inner flange ring is fixedly connected to an outer ring bearing. The right end of the outer ring bearing is fixedly connected to an outer flange ring. An inner ring bearing is provided at the left end of the outer flange ring. A fixing ring is fixedly connected to the outer wall of the inner ring bearing. A raceway is provided on the outside of the fixing ring. Rollers are rollingly connected to the inside of the raceway. Ring-shaped fixing plates are fixedly connected to both the right end of the inner flange ring and the left end of the outer flange ring. A damping column is fixedly connected to the other end surface of the ring-shaped fixing plate. A first compression spring is fixedly connected to the other end surface of the ring-shaped fixing plate. A sealing ring is fixedly connected to the other end of the first compression spring. A second compression spring is fixedly connected to the other end surface of the ring-shaped fixing plate. A supporting ring-shaped plate is fixedly connected to the other end of the second compression spring. A sealing pad is fixedly connected to the other end surface of the supporting ring-shaped plate.

[0007] Preferably, the left end of the bolt passes through the inside of the inner flange ring. An inner ring bearing is provided at the right end of the inner flange ring. The outer ring bearing is located outside the inner ring bearing.

[0008] Preferably, the number of the fixed rings is two, the number of the rollers is several, and the outer sides of the upper ends of the rollers are in rolling connection with the inner wall of the outer ring bearing.

[0009] Preferably, both end faces of the left and right of the outer ring bearing are in fit with one end face of the sealing ring, both end faces of the left and right of the inner ring bearing are in fit with one end face of the sealing ring, and the damping column passes through the supporting annular plate and the gasket.

[0010] Preferably, the first compression spring passes through the supporting annular plate and the gasket, the outer side of the damping column is in fit with the inner side of the first compression spring, and one end face of the gasket away from the supporting annular plate is in fit with the surface of the sealing ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] In the utility model, by arranging the annular fixing plate, the damping column and the first compression spring, when one end face of the sealing ring close to the inner ring bearing is worn and shortened, the first compression spring will provide a reverse acting force to make the sealing ring move inward, so that the sealing ring continues to fit with the gap between the outer ring bearing and the inner ring bearing, seal the gap between the outer ring bearing and the inner ring bearing, and at the same time, the second compression spring will also provide a reverse acting force to drive the gasket to move inward through the supporting annular plate, so that the gasket compensates for the connection part of the sealing ring with the outer ring bearing and the inner ring bearing, reduces the generation of gaps, thereby effectively improving the anti-oil leakage effect of the hub bearing and prolonging its service life. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 is the utility model Figure 1 structural schematic diagram at A;

[0015] Figure 3 is the utility model Figure 1 structural schematic diagram at B;

[0016] Figure 4 is a left-view sectional structural schematic diagram of the inner ring bearing of the utility model.

[0017] In the figure: 1, inner flange ring; 2, bolt; 3, outer ring bearing; 4, outer flange ring; 5, inner ring bearing; 6, fixed ring; 7, raceway; 8, roller; 9, annular fixing plate; 10, damping column; 11, first compression spring; 12, sealing ring; 13, second compression spring; 14, supporting annular plate; 15, gasket. Detailed Embodiments

[0018] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0020] An anti-seepage oil hub bearing includes an inner flange ring 1, bolts 2, and an outer flange ring 4. Bolts 2 are provided at the right end of the inner flange ring 1. The right end of the inner flange ring 1 is fixedly connected to an outer ring bearing 3. The right end of the outer ring bearing 3 is fixedly connected to the outer flange ring 4. An inner ring bearing 5 is provided at the left end of the outer flange ring 4. A fixing ring 6 is fixedly connected to the outer wall of the inner ring bearing 5. A raceway 7 is provided on the outside of the fixing ring 6. Rollers 8 are rollingly connected to the inside of the raceway 7. Ring-shaped fixing plates 9 are fixedly connected to both the right end of the inner flange ring 1 and the left end of the outer flange ring 4. A damping column 10 is fixedly connected to the other end face of the ring-shaped fixing plate 9. A first compression spring 11 is fixedly connected to the other end face of the ring-shaped fixing plate 9. A sealing ring 12 is fixedly connected to the other end of the first compression spring 11. A second compression spring 13 is fixedly connected to the other end face of the ring-shaped fixing plate 9. A support ring plate 14 is fixedly connected to the other end of the second compression spring 13. A gasket 15 is fixedly connected to the other end face of the support ring plate 14.

[0021] The left end of the bolt 2 passes through the inner side of the inner flange ring 1. An inner ring bearing 5 is provided at the right end of the inner flange ring 1. The outer ring bearing 3 is located outside the inner ring bearing 5. The number of fixing rings 6 is two, and the number of rollers 8 is several. The outer side of the upper end of the roller 8 is in rolling connection with the inner wall of the outer ring bearing 3. Both the left and right end faces of the outer ring bearing 3 are in contact with one end face of the sealing ring 12. Both the left and right end faces of the inner ring bearing 5 are in contact with one end face of the sealing ring 12. The damping column 10 passes through the support ring plate 14 and the gasket 15. The first compression spring 11 passes through the support ring plate 14 and the gasket 15. The outer side of the damping column 10 is in contact with the inner side of the first compression spring 11. One end face of the gasket 15 away from the support ring plate 14 is in contact with the surface of the sealing ring 12. A bolt 2 is provided at the right end of the inner flange ring 1. The right end of the inner flange ring 1 is fixedly connected to the outer ring bearing 3. The right end of the outer ring bearing 3 is fixedly connected to the outer flange ring 4. An inner ring bearing 5 is provided at the left end of the outer flange ring 4. The outer wall of the inner ring bearing 5 is fixedly connected to the fixing ring 6. A raceway 7 is provided on the outer side of the fixing ring 6. The roller 8 is in rolling connection with the inner side of the raceway 7. Both the right end of the inner flange ring 1 and the left end of the outer flange ring 4 are fixedly connected to the annular fixing plate 9, which facilitates the setting of the annular fixing plate 9, the damping column 10 and the first compression spring 11. When one end face of the sealing ring 12 close to the inner ring bearing 5 wears and becomes shorter, the first compression spring 11 will provide a reverse force to make the sealing ring 12 move inward, so that the sealing ring 12 continues to fit with the gap between the outer ring bearing 3 and the inner ring bearing 5, and seals the gap between the outer ring bearing 3 and the inner ring bearing 5. At the same time, the second compression spring 13 will also provide a reverse force to drive the gasket 15 to move inward through the support ring plate 14, so that the gasket 15 compensates for the connection between the sealing ring 12 and the outer ring bearing 3 and the inner ring bearing 5, reduces the generation of gaps, thereby effectively improving the anti-oil leakage effect of the hub bearing and prolonging its service life; the other end face of the annular fixing plate 9 is fixedly connected to the damping column 10, the other end face of the annular fixing plate 9 is fixedly connected to the first compression spring 11, the other end of the first compression spring 11 is fixedly connected to the sealing ring 12, the other end face of the annular fixing plate 9 is fixedly connected to the second compression spring 13, the other end of the second compression spring 13 is fixedly connected to the support ring plate 14, and the other end face of the support ring plate 14 is fixedly connected to the gasket 15.

[0022] Workflow: When in use, the inner flange ring 1, outer ring bearing 3, outer flange ring 4, inner ring bearing 5, fixing ring 6, raceway 7 and roller 8 form a hub bearing, which is then fixed to the vehicle by bolts 2. During vehicle travel, the inner ring bearing 5 drives the roller 8 to rotate, which easily causes friction to the sealing ring 12 and results in gaps. At this time, the first compression spring 11 provides a reverse force to move the sealing ring 12 inward. The damping column 10 makes the movement of the first compression spring 11 more stable, reduces shaking, and also buffers the shaking during vehicle travel, reducing the movement of the sealing ring 12. As a result, the sealing ring 12 continues to fit the gaps between the outer ring bearing 3 and the inner ring bearing 5, seals the gaps between the outer ring bearing 3 and the inner ring bearing 5, reduces dust entry and lubricating oil leakage. At the same time, the second compression spring 13 also provides a reverse force to drive the sealing pad 15 to move inward through the support ring plate 14, so that the sealing pad 15 compensates for the connection between the sealing ring 12 and the outer ring bearing 3 and the inner ring bearing 5, reducing the generation of gaps again, thereby effectively improving the anti-oil leakage effect of the hub bearing and extending its service life.

[0023] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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. An oil-seepage-proof hub bearing, comprising an inner flange ring (1), bolts (2) and an outer flange ring (4), characterized in that: The right end of the inner flange ring (1) is provided with a bolt (2), the right end of the inner flange ring (1) is fixedly connected to an outer ring bearing (3), the right end of the outer ring bearing (3) is fixedly connected to an outer flange ring (4), the left end of the outer flange ring (4) is provided with an inner ring bearing (5), the outer wall of the inner ring bearing (5) is fixedly connected to a fixing ring (6), the outer side of the fixing ring (6) is provided with a raceway (7), the inner side of the raceway (7) is rollingly connected to a roller (8), the right end of the inner flange ring (1) and the left end of the outer flange ring (4) are both fixedly connected to an annular A fixing plate (9), the other end surface of the annular fixing plate (9) is fixedly connected to a damping column (10), the other end surface of the annular fixing plate (9) is fixedly connected to a first compression spring (11), the other end of the first compression spring (11) is fixedly connected to a sealing ring (12), the other end surface of the annular fixing plate (9) is fixedly connected to a second compression spring (13), the other end of the second compression spring (13) is fixedly connected to a supporting annular plate (14), and the other end surface of the supporting annular plate (14) is fixedly connected to a sealing gasket (15).

2. The anti-oil seepage hub bearing according to claim 1, characterized in that: The left end of the bolt (2) passes through the inner side of the inner flange ring (1); an inner ring bearing (5) is provided at the right end of the inner flange ring (1); and the outer ring bearing (3) is located outside the inner ring bearing (5).

3. The oil-seepage-proof hub bearing according to claim 1, characterized in that: The number of the fixing rings (6) is two, the number of the rollers (8) is a plurality, and the outer sides of the upper ends of the rollers (8) are rollingly connected to the inner wall of the outer ring bearing (3).

4. The anti-oil-seepage hub bearing according to claim 1, characterized in that: The left and right end surfaces of the outer ring bearing (3) are both in contact with one end surface of the sealing ring (12), the left and right end surfaces of the inner ring bearing (5) are both in contact with one end surface of the sealing ring (12), and the damping column (10) passes through the supporting annular plate (14) and the sealing gasket (15).

5. The oil-seepage-proof hub bearing according to claim 1, characterized in that: The first compression spring (11) passes through the supporting annular plate (14) and the sealing gasket (15); the outer side of the damping column (10) fits with the inner side of the first compression spring (11); and an end surface of the sealing gasket (15) away from the supporting annular plate (14) fits with the surface of the sealing ring (12).

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