Hub bearing

Abstract

The invention relates to the field of bearing equipment, in particular to a hub bearing which comprises an inner ring, an outer ring, a rotating shaft, a pin roller and a sealing cover, the outer ring is installed on the inner wall of the inner ring, the rotating shaft is inserted between the outer ring and the inner ring in a penetrating mode, and the rotating shaft is driven by an engine; the roller is mounted on a mounting frame on the peripheral side of the inner ring, the sealing cover is arranged between the inner ring and the outer ring, and the sealing cover is used for sealing the space between the inner ring and the outer ring; an oil brushing disc is additionally arranged in the cavity of the inner ring, the oil brushing disc is arranged on the peripheral side of the outer wall of the outer ring in a sleeving mode, and the oil brushing disc is used for smearing lubricating oil leaked between the pin rollers to the surfaces of the pin rollers. The roller bearing aims to effectively prevent lubricating oil between the rollers from leaking and fully guarantee the lubricating effect of the lubricating oil on the rollers, so that the abrasion between the rollers can be reduced, and the service life of the bearing can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of bearing equipment, and in particular to a wheel hub bearing. Background Art

[0002] The wheel hub bearing is an important part of the automobile. Its main function is to bear the load and provide precise guidance for the rotation of the wheel hub. It bears both axial load and radial load. The traditional automobile wheel hub bearing is composed of two sets of tapered roller bearings or ball bearings, while the modern wheel hub bearing unit integrates the two sets of bearings into one unit, which has the advantages of good assembly performance, light weight, compact structure and large load capacity.

[0003] In the related art, after the wheel hub bearing is assembled, lubricating oil needs to be added to the balls or between the balls between the inner ring and the outer ring. The lubricating oil can effectively reduce the friction between the inner ring and the outer ring and between the balls or between the balls during the operation of the bearing, thereby effectively reducing the wear of the bearing and helping to extend the service life of the bearing.

[0004] However, in actual use, when the car is driving on a bumpy road for a long time, since the inner ring and the wheel hub are often connected only by bolts, when the car is driving fast, the wheel hub will vibrate to a certain extent due to the external environment, which will cause the bolts between the inner ring and the wheel hub to loosen to a certain extent. This will cause a certain gap between the inner ring and the outer ring, and the lubricating oil will leak from the rollers into the cavity of the inner ring, and then leak from the cavity of the inner ring through these gaps, which will affect the sliding between the rollers and aggravate the wear between the rollers, which is not conducive to the long-term use of the bearing. Summary of the invention

[0005] The present application provides a wheel hub bearing, the purpose of which is to effectively prevent the leakage of lubricating oil between rollers, fully ensure the lubricating effect of the lubricating oil on the rollers, thereby helping to reduce the wear between the rollers and extend the service life of the bearing.

[0006] The present application provides a wheel hub bearing, which adopts the following technical solution:

[0007] A wheel hub bearing, comprising an inner ring, an outer ring, a rotating shaft, a roller and a sealing cover, wherein the outer ring is mounted on the inner wall of the inner ring, the rotating shaft is inserted between the outer ring and the inner ring, the rotating shaft is driven by an engine, the roller is mounted on a mounting frame on the circumference of the inner ring, the roller rolls between the raceways of the inner ring and the outer ring, the sealing cover is arranged between the inner ring and the outer ring, and the sealing cover is used to seal between the inner ring and the outer ring;

[0008] An oil brush pan is provided in the cavity of the inner ring, and the oil brush pan is sleeved on the outer wall circumference of the outer ring. The oil brush pan is used to apply the lubricating oil leaked between the rollers to the surface of the rollers.

[0009] By adopting the above technical solution, when the car is driving on a bumpy road for a long time, the lubricating oil added between the rollers will gradually leak from the rollers to the oil brush pan located in the inner ring cavity. During the rotation of the oil brush pan, the lubricating oil leaked from the oil brush pan will be re-applied to the rollers. The oil brush pan can fully ensure the lubrication effect of the lubricating oil on the rollers, which is conducive to reducing the wear between the rollers and extending the service life of the bearing.

[0010] Preferably, the oil brush pan is evenly spaced with a plurality of brushes installed along the circumference thereof, the brushes are located in the gap between two adjacent rollers, and the bristles at the front end of the brushes are connected with the rollers.

[0011] By adopting the above technical solution, when in use, the lubricating oil added between the rollers will leak directly onto the brush of the oil brush pan in the inner ring cavity. During the rotation of the oil brush pan, the brush on the oil brush pan can re-apply the lubricating oil leaked from the roller to the roller surface. This ensures that the brush on the oil brush pan can continuously ensure that there is sufficient lubricating oil on the roller surface to lubricate the operation between two adjacent rollers, and then the oil brush pan can fully ensure the lubricating effect of the lubricating oil on the rollers, which is beneficial to reduce the wear between the rollers and extend the service life of the bearing.

[0012] Preferably, the oil brush pan is integrally formed with a plurality of teeth protruding outward at uniform intervals along its circumference, the brush is sleeved on the teeth, and the teeth provide stable support for the brush.

[0013] By adopting the above technical solution, the teeth are used to stably support the brush while effectively limiting the position of the brush, which helps prevent the brush from shaking during the driving of the car and helps to ensure the effect of the brush on the roller brush lubricating oil.

[0014] Preferably, the brush is connected to the teeth via a connecting sleeve, the interior of the connecting sleeve is hollow, the brush is integrally formed at one end of the connecting sleeve, the end of the connecting sleeve away from the brush is open, and the end of the connecting sleeve away from the brush is sleeved on the teeth;

[0015] The connecting sleeve is made of rubber.

[0016] By adopting the above technical solution, the rubber material is soft and will not cause damage to the teeth. The rubber material is elastic. After the connecting sleeve is set on the teeth, the connecting sleeve can fit tightly between the teeth and has better stability.

[0017] Preferably, anti-slip patterns are engraved on the inner wall of the inner side of the connecting sleeve.

[0018] By adopting the above technical solution, after the connecting sleeve is installed on the teeth, the anti-slip pattern can further enhance the stability of the connection between the connecting sleeve and the teeth, thereby facilitating the stability of the brush to the roller brush lubricating oil.

[0019] Preferably, the connecting sleeve is slidably mounted on the teeth.

[0020] By adopting the above technical solution, the distance between the brush and the roller can be adjusted according to the specific situation by adjusting the position of the connecting sleeve installed on the teeth, which is beneficial to improve the overall adaptability of the oil brush pan, making it more convenient to use and more effective.

[0021] Preferably, hooks are integrally formed on the left and right sides of the bottom of the connecting sleeve in a horizontal direction approaching each other, and multiple slots are evenly spaced along the length direction on the left and right sides of the teeth, and the hooks are connected to the corresponding slots by snapping.

[0022] By adopting the above technical solution, when the connecting sleeve is placed on the tooth, the hooks on the left and right sides of the connecting sleeve are connected to the grooves of the tooth. When the position of the connecting sleeve on the tooth needs to be adjusted, the hooks are taken out of the grooves and connected to another groove, which is very convenient.

[0023] Preferably, an annular groove is formed on the outer wall of the outer ring along its circumference, one side of the sealing cover is embedded in the annular groove, and the other side of the sealing cover is pressed against the inner wall of the inner ring.

[0024] By adopting the above technical solution, the sealing cover is limited by the ring groove, which effectively ensures the stability of the sealing cover installation process. At the same time, one side of the sealing cover is embedded in the ring groove and the other side of the sealing cover is pressed against the inner wall of the inner ring. This can effectively improve the sealing performance of the sealing cover to the inner ring cavity, and further effectively prevent the lubricating oil on the roller from leaking from the cavity of the inner ring to the outside.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the car is driving on a bumpy road for a long time, the lubricating oil added between the rollers will gradually leak from the rollers to the oil brush pan located in the inner ring cavity. During the rotation of the oil brush pan, the lubricating oil leaked from the oil brush pan will be re-applied to the rollers. The oil brush pan can fully ensure the lubrication effect of the lubricating oil on the rollers, which is beneficial to reduce the wear between the rollers and extend the service life of the bearing;

[0027] 2. When the lubricating oil added between the rollers leaks, it will directly leak onto the brush of the oil brush pan in the inner ring cavity. When the oil brush pan rotates, the brush on the oil brush pan can re-apply the lubricating oil leaking from the roller to the roller surface. This ensures that the brush on the oil brush pan can continuously ensure that there is sufficient lubricating oil on the roller surface to lubricate the operation between two adjacent rollers, and then the oil brush pan can fully ensure the lubricating effect of the lubricating oil on the rollers, which is beneficial to reduce the wear between the rollers and extend the service life of the bearing;

[0028] 3. The connecting sleeve is installed on the teeth in a sliding manner. This allows the distance between the brush and the roller to be adjusted according to specific conditions by adjusting the position of the connecting sleeve installed on the teeth, which is beneficial to improving the overall adaptability of the oil brush pan, making it more convenient to use and more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0030] Figure 2 is a structural schematic diagram of an embodiment of the present application specifically showing the position relationship of the ring groove;

[0031] Figure 3 This is a structural diagram showing the positional relationship between the oil brush pan, the brush, the teeth and the connecting sleeve in the embodiment of the present application;

[0032] Figure 4 It is a structural schematic diagram of an embodiment of the present application specifically showing the positional relationship between the anti-slip pattern, the hook and the slot.

[0033] Figure numerals: 1, inner ring; 2, outer ring; 3, rotating shaft; 4, roller; 5, sealing cover; 6, oil brush pan; 7, brush; 8, teeth; 9, connecting sleeve; 10, anti-slip pattern; 11, hook; 12, slot; 13, ring groove. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0035] Example:

[0036] The present application embodiment discloses a wheel hub bearing, referring to Figure 1, including inner ring 1, outer ring 2, shaft 3, roller 4 and sealing cover 5, outer ring 2 is installed on the inner wall of inner ring 1, shaft 3 is inserted between outer ring 2 and inner ring 1, shaft 3 is connected to the engine of the car and driven by the engine of the car, roller 4 is installed on the mounting frame around the inner ring 1, after roller 4 is installed, roller 4 rolls between the raceways of inner ring 1 and outer ring 2. After the inner ring 1, outer ring 2, shaft 3 and roller 4 are assembled, the sealing cover 5 is used to cover the place where the inner ring 1 and outer ring 2 are connected.

[0037] Reference Figure 1 and Figure 2 When the sealing cover 5 is installed, the outer wall of the outer ring 2 is provided with an annular groove 13 along its circumference, and the inner side of the sealing cover 5 is embedded in the annular groove 13. At the same time, the outer side of the sealing cover 5 is pressed against the inner wall of the inner ring 1. The annular groove 13 is used to limit the sealing cover 5, which effectively ensures the stability of the sealing cover 5 during the installation process. While one side of the sealing cover 5 is embedded in the annular groove 13 and the other side of the sealing cover 5 is pressed against the inner wall of the inner ring 1, the sealing performance between the sealing cover 5 and the cavity of the inner ring 1 can be effectively improved, thereby effectively preventing the lubricating oil on the roller 4 from leaking from the cavity of the inner ring 1 to the outside.

[0038] At the same time, refer to Figure 1 and Figure 3 An oil brush pan 6 is provided in the cavity of the inner ring 1, and the oil brush pan 6 is sleeved on the outer wall circumference of the outer ring 2. While the rotating shaft 3 drives the inner ring 1, the outer ring 2 and the roller 4 to rotate, it also drives the oil brush pan 6 to rotate synchronously.

[0039] Specifically, when the car is in use and driving on a bumpy road for a long time, the lubricating oil added between the rollers 4 will gradually leak from the rollers 4 to the oil brush pan 6 located in the cavity of the inner ring 1. During the rotation of the oil brush pan 6, the lubricating oil leaked from the oil brush pan 6 will be re-applied to the rollers 4. The oil brush pan 6 can fully ensure the lubrication effect of the lubricating oil on the rollers 4, which is conducive to reducing the wear between the rollers 4 and extending the service life of the bearing.

[0040] Specifically, refer to Figure 1 and Figure 3The oil brush pan 6 is in the shape of a disc, and a plurality of brushes 7 are evenly installed along the circumference of the oil brush pan 6. The brushes 7 are located in the gap between two adjacent rollers 4, and the bristles at the front end of the brushes 7 are connected with the rollers 4 on the inner ring 1. Specifically, when the lubricating oil added between the rollers 4 leaks, it will directly leak onto the brushes 7 of the oil brush pan 6 in the cavity of the inner ring 1. When the oil brush pan 6 rotates, the brushes 7 on the oil brush pan 6 can re-apply the lubricating oil leaked from the rollers 4 to the surface of the rollers 4. This makes it possible to continuously ensure that the surface of the rollers 4 has sufficient lubricating oil to lubricate the operation between the two adjacent rollers 4 through the brushes 7 on the oil brush pan 6, and then the oil brush pan 6 can fully ensure the lubricating effect of the lubricating oil on the rollers 4, which is conducive to reducing the wear between the rollers 4 and extending the service life of the bearing.

[0041] Specifically, refer to Figure 1 and Figure 3 The oil brush pan 6 is evenly spaced along its circumference and is integrally formed with a plurality of teeth 8 protruding outward, and the brush 7 is sleeved on the teeth 8. The teeth 8 provide stable support for the brush 7 and can effectively limit the position of the brush 7, thereby preventing the brush 7 from shaking during the driving of the car and ensuring the effect of the brush 7 on brushing lubricating oil on the roller 4.

[0042] Specifically, the brush 7 is connected to the teeth 8 via a connecting sleeve 9. The interior of the connecting sleeve 9 is hollow. The brush 7 is integrally formed at one end of the connecting sleeve 9. The end of the connecting sleeve 9 away from the brush 7 is open. Specifically, when connecting the brush 7 to the teeth 8, the end of the connecting sleeve 9 away from the brush 7 is sleeved on the teeth 8.

[0043] In this embodiment, the connecting sleeve 9 is made of rubber material. The rubber material is soft and will not cause damage to the teeth 8. The rubber material is elastic. After the connecting sleeve 9 is put on the teeth 8, the connecting sleeve 9 can fit tightly with the teeth 8 and has better stability.

[0044] Further, refer to Figure 1 and Figure 4 The inner wall of the inner side of the connecting sleeve 9 is engraved with anti-skid patterns 10. After the connecting sleeve 9 is mounted on the teeth 8, the anti-skid patterns 10 can further enhance the stability of the connection between the connecting sleeve 9 and the teeth 8, thereby facilitating the stability of the brush 7 applying lubricating oil to the roller 4.

[0045] Furthermore, the connecting sleeve 9 is slidably installed on the teeth 8, which makes it possible to adjust the distance between the brush 7 and the roller 4 according to specific circumstances by adjusting the position of the connecting sleeve 9 installed on the teeth 8, thereby helping to improve the overall adaptability of the oil brush pan 6, making it more convenient to use and more effective.

[0046] Specifically, refer to Figure 1 and Figure 4 A hook 11 is integrally formed on the left and right sides of the bottom of the connecting sleeve 9 in the horizontal direction approaching each other, and a slot 12 adapted to the hook 11 is provided on the left and right sides of the tooth 8. These slots 12 are evenly spaced along the length direction of the tooth 8, and the hook 11 is connected to the corresponding slot 12 by snapping.

[0047] Specifically, when the connecting sleeve 9 is sleeved on the teeth 8, the hooks 11 on the left and right sides of the connecting sleeve 9 are snapped into the slots 12 of the teeth 8. When the position of the connecting sleeve 9 on the teeth 8 needs to be adjusted, the hooks 11 are taken out of the slots 12 and snapped into another slot 12, which is very convenient.

[0048] In this embodiment, the hook 11 is also made of rubber. The rubber hook 11 is easy to deform, so it is easy to connect the hook 11 to the corresponding slot 12 and also easy to remove the hook 11 from the corresponding slot 12.

[0049] The implementation principle of a hub bearing in the embodiment of the present application is:

[0050] When the sealing cover 5 is installed, the outer wall of the outer ring 2 is provided with an annular groove 13 along its circumference, one side of the sealing cover 5 is embedded in the annular groove 13, and the other side of the sealing cover 5 is pressed against the inner wall of the inner ring 1. The annular groove 13 is used to limit the sealing cover 5, which effectively ensures the stability of the sealing cover 5 during installation. While one side of the sealing cover 5 is embedded in the annular groove 13 and the other side of the sealing cover 5 is pressed against the inner wall of the inner ring 1, the sealing performance between the sealing cover 5 and the cavity of the inner ring 1 can be effectively improved, thereby effectively preventing the lubricating oil on the roller 4 from leaking from the cavity of the inner ring 1 to the outside.

[0051] At the same time, an oil brush pan 6 is added to the cavity of the inner ring 1, and the oil brush pan 6 is sleeved on the outer wall circumference of the outer ring 2. While the rotating shaft 3 drives the inner ring 1, the outer ring 2 and the roller 4 to rotate, it also drives the oil brush pan 6 to rotate synchronously.

[0052] Specifically, when the car is in use and driving on a bumpy road for a long time, the lubricating oil added between the rollers 4 will gradually leak from the rollers 4 to the oil brush pan 6 located in the cavity of the inner ring 1. During the rotation of the oil brush pan 6, the lubricating oil leaked from the oil brush pan 6 will be re-applied to the rollers 4. The oil brush pan 6 can fully ensure the lubrication effect of the lubricating oil on the rollers 4, which is conducive to reducing the wear between the rollers 4 and extending the service life of the bearing.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wheel hub bearing, characterized in that: The invention comprises an inner ring (1), an outer ring (2), a rotating shaft (3), a roller (4) and a sealing cover (5), wherein the outer ring (2) is mounted on the inner wall of the inner ring (1), the rotating shaft (3) is inserted between the outer ring (2) and the inner ring (1), the rotating shaft (3) is driven by an engine, the roller (4) is mounted on a mounting frame on the circumference of the inner ring (1), the roller (4) rolls between the raceways of the inner ring (1) and the outer ring (2), the sealing cover (5) is arranged between the inner ring (1) and the outer ring (2), and the sealing cover (5) is used to seal between the inner ring (1) and the outer ring (2); An oil brush pan (6) is provided in the cavity of the inner ring (1), and the oil brush pan (6) is sleeved on the outer wall circumference of the outer ring (2). The oil brush pan (6) is used to apply the lubricating oil leaked between the rollers (4) to the surface of the rollers (4).

2. A wheel hub bearing according to claim 1, characterized in that: The oil brush pan (6) is evenly spaced along its circumference with a plurality of brushes (7), the brushes (7) being located in the gap between two adjacent rollers (4), and the bristles at the front end of the brushes (7) being connected to the rollers (4).

3. A wheel hub bearing according to claim 2, characterized in that: The oil brush pan (6) is integrally formed with a plurality of teeth (8) protruding outwards at uniform intervals along its circumference, the brush (7) is sleeved on the teeth (8), and the teeth (8) provide stable support for the brush (7).

4. A wheel hub bearing according to claim 3, characterized in that: The brush (7) and the teeth (8) are connected via a connecting sleeve (9); the interior of the connecting sleeve (9) is hollow; the brush (7) is integrally formed at one end of the connecting sleeve (9); the end of the connecting sleeve (9) away from the brush (7) is open; and the end of the connecting sleeve (9) away from the brush (7) is sleeved on the teeth (8); The connecting sleeve (9) is made of rubber.

5. A wheel hub bearing according to claim 4, characterized in that: Anti-slip patterns (10) are engraved on the inner wall of the connecting sleeve (9).

6. A wheel hub bearing according to claim 4, characterized in that: The connecting sleeve (9) is slidably mounted on the teeth (8).

7. A wheel hub bearing according to claim 6, characterized in that: The bottom of the connecting sleeve (9) is integrally formed with hooks (11) on the left and right sides thereof in a direction approaching each other in the horizontal direction, and the left and right sides of the teeth (8) are uniformly provided with a plurality of slots (12) along the length direction thereof, and the hooks (11) are connected to the corresponding slots (12) by being snap-fitted.

8. The wheel hub bearing according to claim 1, characterized in that: The outer wall of the outer ring (2) is provided with an annular groove (13) along its circumference, one side of the sealing cover (5) is embedded in the annular groove (13), and the other side of the sealing cover (5) is pressed against the inner wall of the inner ring (1).

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