A drive integrated hub bearing structure

Abstract

This invention relates to the field of wheel hub bearing technology and discloses a drive-integrated wheel hub bearing structure, including a flange, an outer ring on one side of the flange, an inner ring at the inner end of the outer ring, a cage between the inner and outer rings, a plurality of rolling elements inside the cage, and a lubrication mechanism inside the outer ring. In this drive-integrated wheel hub bearing structure, during use, operators can add lubricating oil to the oil reservoir through an oil filling hole. After filling, the sealing plug can be tightened to seal the oil filling hole. The oil reservoir can store lubricating oil, and the use of a moisture-absorbing sponge can absorb the lubricating oil, thereby slowing down the dripping speed. This allows the lubricating oil to slowly drip onto the rolling elements through the oil filling channel during bearing rotation, reducing wear on the rolling elements and lowering noise during bearing rotation, thus improving the practicality of the drive-integrated wheel hub bearing structure.

Description

Technical Field

[0001] This invention relates to the field of wheel hub bearing technology, specifically to a drive-integrated wheel hub bearing structure. Background Technology

[0002] Wheel hub bearings are components used in automobile axles to bear weight and provide precise guidance for the rotation of the wheel hub. They bear both axial and radial loads and are an important part of automobile load-bearing and rotation.

[0003] The existing patent CN205669537U discloses a hub bearing, including an inner flange ring and an outer flange ring disposed outside the inner flange ring. A steel ball and a cage are disposed between the inner flange ring and the outer flange ring. Sealing rings are respectively disposed at both ends of the gap between the inner flange ring and the outer flange ring. A flange is disposed at one end of the inner flange ring, and hub bolts are disposed on the flange. An annular groove is disposed on the outer side of the flange at the end of the outer flange ring corresponding to the inner flange ring. The technical solution of this invention has the technical effects of simple structure and effective improvement of waterproof performance.

[0004] However, due to the fact that the existing patent technology (publication number CN205669537U) often requires manual lubrication to ensure the smooth rotation of the wheel hub bearing, the operation is relatively troublesome and reduces the effectiveness of use. Summary of the Invention

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a drive-integrated wheel hub bearing structure to solve the problem mentioned in the background art that, in order to ensure the smooth rotation of the wheel hub bearing, it is often necessary for operators to manually add lubricating oil, which is cumbersome and reduces the effectiveness of use.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a drive integrated wheel hub bearing structure, including a flange, an outer ring provided on one side of the flange, an inner ring provided at the inner end of the outer ring, a cage provided between the inner ring and the outer ring, a plurality of rolling elements provided inside the cage, and a lubrication mechanism provided inside the outer ring. Preferably, the lubrication mechanism includes an oil storage chamber, an oil injection channel, and a moisture-absorbing sponge. The outer ring has a plurality of oil storage chambers inside, and an oil injection channel is provided on the side of the oil storage chamber near the rolling element. The oil injection channel is provided with a moisture-absorbing sponge inside. The oil storage chambers can store lubricating oil, and the moisture-absorbing sponge can absorb lubricating oil, thereby slowing down the dripping speed of lubricating oil. When the bearing rotates, the lubricating oil will slowly drip onto the rolling element through the oil injection channel for lubrication, which can reduce the wear of the rolling element and reduce the noise when the bearing rotates.

[0007] Preferably, an oil filling hole is provided at the outer end of the outer ring corresponding to the position of the oil storage cavity. A sealing plug is connected to the inside of the oil filling hole by a thread. The oil filling hole facilitates the addition of lubricating oil into the oil storage cavity. After the oil filling is completed, the sealing plug can be tightened to seal the oil filling hole.

[0008] Preferably, a sealing ring is provided at the connection between the flange and the outer ring, and a dustproof ring is provided between the inner ring and the outer ring. The dustproof ring is away from the rolling elements. The sealing ring improves the sealing performance at the connection between the flange and the outer ring, and the dustproof ring can prevent dust and mud from entering the bearing and affecting the rotation of the rolling elements.

[0009] Preferably, the outer end of the outer ring is provided with a plurality of mounting blocks, and the outer end of the mounting block is provided with a mounting hole. The mounting blocks and mounting holes facilitate the installation of the bearing.

[0010] Preferably, the outer end of the flange is provided with a plurality of mounting holes II, the mounting holes II having the same diameter as mounting holes I.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. In this integrated wheel hub bearing structure, when the wheel hub bearing is in use, the operator can add lubricating oil into the oil reservoir through the oil filling hole. After the oil filling is completed, the sealing plug can be tightened to seal the oil filling hole. The oil reservoir can store lubricating oil, and the setting of the moisture-absorbing sponge can absorb the lubricating oil, thereby slowing down the dripping speed of the lubricating oil. When the bearing rotates, the lubricating oil will slowly drip onto the rolling elements through the oil filling channel for lubrication. This can reduce the wear of the rolling elements and reduce the noise when the bearing rotates, thus improving the practicality of the integrated wheel hub bearing structure. 2. This integrated drive hub bearing structure facilitates bearing installation through the installation block, mounting hole one, and mounting hole two. The sealing ring improves the sealing performance at the connection between the flange and the outer ring, and the dustproof ring prevents dust and mud from entering the bearing and affecting the rotation of the rolling elements, thus improving the performance of the integrated drive hub bearing structure. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the filling hole and sealing plug structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 This is an enlarged structural schematic diagram of the lubrication mechanism of the present invention.

[0013] In the diagram: 1. Flange; 2. Outer ring; 3. Inner ring; 4. Cage; 5. Rolling element; 6. Oil reservoir; 7. Oil filling channel; 8. Moisture-absorbing sponge; 9. Oil filling hole; 10. Sealing plug; 11. Sealing ring; 12. Dustproof ring; 13. Mounting block; 14. Mounting hole one; 15. Mounting hole two. Detailed Implementation

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

[0015] Please see Figures 1-4 The present invention provides a technical solution: An integrated wheel hub bearing structure includes a flange 1, an outer ring 2 on one side of the flange 1, an inner ring 3 at the inner end of the outer ring 2, a cage 4 between the inner ring 3 and the outer ring 2, a plurality of rolling elements 5 inside the cage 4, and a lubrication mechanism inside the outer ring 2.

[0016] In this embodiment, the preferred lubrication mechanism includes an oil storage chamber 6, an oil injection channel 7, and a moisture-absorbing sponge 8. The outer ring 2 has a plurality of oil storage chambers 6 inside. The oil storage chamber 6 has an oil injection channel 7 on the side near the rolling element 5. The oil injection channel 7 has a moisture-absorbing sponge 8 inside. The oil storage chamber 6 can store lubricating oil, and the moisture-absorbing sponge 8 can absorb lubricating oil, thereby slowing down the dripping speed of lubricating oil. When the bearing rotates, the lubricating oil will slowly drip onto the rolling element 5 through the oil injection channel 7 for lubrication, which can reduce the wear of the rolling element 5 and reduce the noise when the bearing rotates.

[0017] In this embodiment, preferably, an oil filling hole 9 is provided at the outer end of the outer ring 2 corresponding to the position of the oil storage cavity 6. The inside of the oil filling hole 9 is connected to a sealing plug 10 by a thread. The oil filling hole 9 facilitates the addition of lubricating oil into the oil storage cavity 6. After the oil filling is completed, the sealing plug 10 can be tightened to seal the oil filling hole 9.

[0018] In this embodiment, a sealing ring 11 is preferably provided at the connection between the flange 1 and the outer ring 2, and a dustproof ring 12 is provided between the inner ring 3 and the outer ring 2. The dustproof ring 12 is away from the rolling element 5. The sealing ring 11 improves the sealing performance at the connection between the flange 1 and the outer ring 2, and the dustproof ring 12 can prevent dust and mud from entering the bearing and affecting the rotation of the rolling element 5.

[0019] In this embodiment, the outer end of the outer ring 2 is preferably provided with a plurality of mounting blocks 13, and the outer end of the mounting block 13 is provided with a mounting hole 14. The mounting blocks 13 and the mounting hole 14 facilitate the installation of the bearing.

[0020] In this embodiment, the outer end of the flange 1 is preferably provided with a plurality of mounting holes 15, the mounting holes 15 having the same diameter as the mounting holes 14.

[0021] In this embodiment, the integrated hub bearing structure facilitates bearing installation through the mounting block 13, mounting hole 14, and mounting hole 15. The sealing ring 11 improves the sealing performance at the connection between the flange 1 and the outer ring 2. The dustproof ring 12 prevents dust and mud from entering the bearing and affecting the rotation of the rolling elements 5. When using the hub bearing, the operator can add lubricating oil to the oil reservoir 6 through the oil filling hole 9. After adding oil, the sealing plug 10 can be tightened to seal the oil filling hole 9. The oil reservoir 6 can store lubricating oil. The moisture-absorbing sponge 8 can absorb the lubricating oil, thereby slowing down the dripping speed of the lubricating oil. When the bearing rotates, the lubricating oil will slowly drip onto the rolling elements 5 through the oil injection channel 7 for lubrication, which can reduce the wear of the rolling elements 5 and reduce the noise when the bearing rotates.

[0022] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A drive-integrated hub bearing structure, comprising a flange (1), characterized in that: An outer ring (2) is provided on one side of the flange (1), an inner ring (3) is provided at the inner end of the outer ring (2), a retainer (4) is provided between the inner ring (3) and the outer ring (2), a plurality of rolling elements (5) are provided inside the retainer (4), and a lubrication mechanism is provided inside the outer ring (2).

2. The integrated wheel hub bearing structure according to claim 1, characterized in that: The lubrication mechanism includes an oil storage chamber (6), an oil injection channel (7), and a moisture-absorbing sponge (8). The outer ring (2) has several oil storage chambers (6) inside. The oil storage chamber (6) has an oil injection channel (7) on the side near the rolling element (5). The oil injection channel (7) has a moisture-absorbing sponge (8) inside.

3. The integrated wheel hub bearing structure according to claim 2, characterized in that: The outer end of the outer ring (2) is provided with an oil filling hole (9) at the position corresponding to the oil storage cavity (6), and the inside of the oil filling hole (9) is connected to a sealing plug (10) by a thread.

4. The integrated wheel hub bearing structure according to claim 3, characterized in that: A sealing ring (11) is provided at the connection between the flange (1) and the outer ring (2), and a dustproof ring (12) is provided between the inner ring (3) and the outer ring (2), with the dustproof ring (12) being away from the rolling element (5).

5. The integrated wheel hub bearing structure according to claim 4, characterized in that: The outer end of the outer ring (2) is provided with a plurality of mounting blocks (13), and the outer end of the mounting block (13) is provided with a mounting hole (14).

6. The integrated wheel hub bearing structure according to claim 5, characterized in that: The outer end of the flange (1) is provided with a plurality of mounting holes two (15), the mounting holes two (15) having the same diameter as the mounting holes one (14).

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