Hub bearing with self-lubricating oil storage structure

Abstract

The utility model discloses a hub bearing with a self-lubricating oil storage structure, which belongs to the technical field of hub bearings with self-lubricating oil storage structures, and adopts the technical scheme that the hub bearing comprises an outer ring, a first groove is formed in the inner wall of the outer ring, an inner ring is rotatably connected to the inner part of the outer ring, a second groove is formed in the surface of the inner ring, and the first groove is communicated with the second groove. A retainer is movably connected into the outer ring, balls are arranged in the retainer, a first connecting frame is fixedly connected to the surface of the outer ring, a second connecting frame is fixedly connected to the surface of the outer ring, and a drainage assembly is arranged on the inner wall of the outer ring. The problems that lubricating oil is stored in most existing hub bearings, but centrifugal force can be generated along with rotation of the hub bearings, the generated centrifugal force enables the lubricating oil to make contact with the inner walls of bearing outer rings, consequently, the lubricating oil cannot make contact with balls in the bearings conveniently, and the lubricating efficiency is affected can be solved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub bearing technology with a self-lubricating oil storage structure, and particularly to a wheel hub bearing with a self-lubricating oil storage structure. Background Technology

[0002] As a key component of automobiles, wheel hub bearings play a crucial role in bearing weight and providing precise guidance for wheel hub rotation during vehicle operation. They must withstand both axial and radial loads.

[0003] To address the aforementioned issues, existing patents offer solutions. Most existing wheel hub bearings store lubricating oil inside. However, as the wheel hub bearing rotates, centrifugal force is generated. This centrifugal force causes the lubricating oil to come into contact with the inner wall of the outer ring of the bearing, making it difficult for the lubricating oil to contact the balls inside the bearing, thus affecting lubrication efficiency.

[0004] Therefore, a hub bearing with a self-lubricating oil storage structure is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a wheel hub bearing with a self-lubricating oil storage structure, which can solve the problem that most existing wheel hub bearings store lubricating oil inside, but as the wheel hub bearing rotates, centrifugal force is generated. The centrifugal force causes the lubricating oil to come into contact with the inner wall of the outer ring of the bearing, making it difficult for the lubricating oil to come into contact with the balls inside the bearing, thus affecting the lubrication efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hub bearing with a self-lubricating oil storage structure, comprising an outer ring, wherein a first groove is provided on the inner wall of the outer ring, an inner ring is rotatably connected to the inner ring, a second groove is provided on the surface of the inner ring, a retainer is movably connected to the inner ring, balls are provided inside the retainer, a first connecting frame is fixedly connected to the surface of the outer ring, a second connecting frame is fixedly connected to the surface of the outer ring, and a drainage component is provided on the inner wall of the outer ring;

[0007] The drainage component includes a cavity, the inner wall of which has a hole communicating with the first groove, an inclined plate fixedly connected inside the cavity, an intercepting plate that cooperates with the inclined plate fixedly connected inside the cavity, a circular hole on the surface of the first groove, and a triangular plate fixedly connected to the side of the intercepting plate near the inclined plate.

[0008] Preferably, a sealing groove is provided at the top of the outer ring, a protective plate is fixedly connected inside the first connecting frame, and a sealing block is fixedly connected to the bottom of the protective plate and movably connected to the sealing groove.

[0009] Preferably, the surface of the first connecting frame is covered with a soft pad, and the soft pad is made of silicone.

[0010] Preferably, the top of the first connecting frame is provided with an installation hole, the top of the inner wall of the installation hole is provided with a reserved groove, and a rubber pad is fixedly connected inside the reserved groove.

[0011] Preferably, the inner wall of the outer ring has two mounting grooves, and a sealing disc is movably connected inside each of the two mounting grooves. The sealing disc is fitted onto the surface of the inner ring.

[0012] Preferably, the outer ring surface is covered with a protective pad, and the protective pad is made of silicone.

[0013] Preferably, the top of the second connecting frame is provided with a threaded hole, and a threaded rod is threadedly connected inside the threaded hole.

[0014] Preferably, the surface of the threaded rod is fitted with a gasket that contacts the inner wall of the threaded hole, and the gasket is made of stainless steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this application, the circular hole allows lubricating oil to enter the cavity under the action of centrifugal force. With the coordinated guidance of the inclined plate, the intercepting plate and the triangular plate, the lubricating oil is discharged through the hole and flows to the ball, which increases the contact opportunity between the ball and the lubricating oil and greatly improves the lubrication efficiency.

[0017] 2. This application prevents impurities from mixing with the lubricating oil, avoids wear of the balls and raceways by impurities, and extends the service life of the bearing. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the wheel hub bearing with a self-lubricating oil storage structure according to this utility model.

[0019] Figure 2 This is a schematic diagram of the drainage component of this utility model;

[0020] Figure 3 This is a schematic diagram showing the disassembled sealing groove and sealing block of this utility model;

[0021] Figure 4 This is a cross-sectional view of the outer ring of this utility model;

[0022] Figure 5 This is a schematic diagram showing the disassembled components of this utility model.

[0023] In the diagram, 1. Outer ring; 2. First groove; 3. Inner ring; 4. Second groove; 5. Retainer; 6. Ball bearing; 7. First connecting frame; 8. Second connecting frame; 9. Drainage assembly; 901. Cavity; 902. Hole; 903. Inclined plate; 904. Interceptor plate; 905. Circular hole; 906. Triangular plate; 10. Sealing groove; 11. Protective plate; 12. Sealing block; 13. Soft pad; 14. Mounting hole; 15. Reserved groove; 16. Rubber pad; 17. Mounting groove; 18. Sealing disc; 19. Protective pad; 20. Threaded hole; 21. Threaded rod; 22. Gasket. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A hub bearing with a self-lubricating oil storage structure includes an outer ring 1, a first groove 2 formed on the inner wall of the outer ring 1, an inner ring 3 rotatably connected to the inside of the outer ring 1, a second groove 4 formed on the surface of the inner ring 3, a retainer 5 movably connected to the inside of the outer ring 1, balls 6 disposed inside the retainer 5, a first connecting frame 7 fixedly connected to the surface of the outer ring 1, a second connecting frame 8 fixedly connected to the surface of the outer ring 1, and a drainage assembly 9 provided on the inner wall of the outer ring 1.

[0027] The drainage component 9 includes a cavity 901, the inner wall of which has a hole 902 communicating with the first groove 2, an inclined plate 903 fixedly connected inside the cavity 901, an intercepting plate 904 that cooperates with the inclined plate 903 fixedly connected inside the cavity 901, a circular hole 905 on the surface of the first groove 2, and a triangular plate 906 fixedly connected to the side of the intercepting plate 904 near the inclined plate 903.

[0028] In this embodiment: by setting an outer ring 1, a first groove 2, an inner ring 3, a second groove 4, a cage 5, and a roller, the outer ring 1 is installed at the corresponding position on the car wheel hub or other related components. When the shaft drives the inner ring 3 to rotate, the inner ring 3 transmits the rotational power to the ball 6 through contact with the ball 6. Since the ball 6 is in close contact with the second groove 4 of the inner ring 3, the ball 6 begins to roll under the drive of the inner ring 3. The rolling ball 6 transmits the rotation of the inner ring 3 to the outer ring 1, and at the same time bears the radial and axial loads from the inner ring 3, and evenly distributes these loads on the outer ring 1. The ball 6 rolls between the first groove 2 and the second groove 4. The first groove 2 and the second groove 4 provide a rolling track for the ball 6 and restrict its rolling. The direction of movement of ball 6 ensures stable rolling, keeping the outer ring 1 relatively stationary or rotating according to specific requirements, thus achieving smooth rotation of the hub. By setting the first connecting frame 7 and the second connecting frame 8, the outer ring 1 can be bolted to two other instruments. By setting the drainage component 9, the lubricating oil inside the outer ring 1 can be guided, improving the contact between the lubricating oil and the surfaces of the retainer 5 and ball 6. By setting the cavity 901, hole 902, inclined plate 903, intercepting plate 904, circular hole 905, and triangular plate 906, the centrifugal force generated when the hub rotates causes the lubricating oil to move towards the inner wall of the outer ring 1. At this time, the circular hole 905 on the inner wall of the outer ring 1, under the action of centrifugal force, becomes the entry point for the lubricating oil. In the cavity 901, lubricating oil enters through the circular hole 905 in the direction of centrifugal force, completing the initial convergence of the lubricating oil. The lubricating oil entering the cavity 901 first contacts the inclined plate 903, which has a specific inclination angle. It utilizes gravity to guide the lubricating oil to flow along the inclined direction. Guided by the inclined plate 903, the lubricating oil flows towards the interceptor plate 904, thus initially planning the flow path of the lubricating oil within the cavity 901. The interceptor plate 904 is positioned on the lubricating oil flow path guided by the inclined plate 903. It blocks the direct flow of the lubricating oil, changing its direction. A triangular plate 906 fixed to the side of the interceptor plate 904 near the inclined plate 903 further enhances the lubricating oil's performance. Further guiding the lubricant, the unique shape of the triangular plate 906 allows the lubricant to be more precisely guided to the hole 902 after contacting the interceptor plate 904. The lubricant guided by the triangular plate 906 reaches the hole 902, which is the channel for the lubricant to be discharged from the cavity 901. Under the coordinated guidance of the inclined plate 903, the interceptor plate 904, and the triangular plate 906, the lubricant flows out of the cavity 901 through the hole 902. The lubricant discharged from the hole 902 directly enters the first groove 2 and then contacts the balls 6 inside the cage 5. This lubricant provides the necessary lubrication for the balls 6, reduces the friction of the balls 6 during rolling, and improves the lubrication efficiency of the cage 5 and the balls 6.

[0029] Specifically, such as Figure 2 , Figure 3 , Figure 4 As shown, a sealing groove 10 is provided at the top of the outer ring 1, a protective plate 11 is fixedly connected inside the first connecting frame 7, and a sealing block 12 is fixedly connected to the bottom of the protective plate 11 and is movably connected to the sealing groove 10.

[0030] Specifically, such as Figure 1 , Figure 3 As shown, a soft pad 13 is fitted on the surface of the first connecting frame 7, and the soft pad 13 is made of silicone.

[0031] Specifically, such as Figure 3 As shown, the top of the first connecting frame 7 is provided with a mounting hole 14, and the top of the inner wall of the mounting hole 14 is provided with a reserved groove 15, and a rubber pad 16 is fixedly connected inside the reserved groove 15.

[0032] In this embodiment: by setting a sealing groove 10, a protective plate 11, and a sealing block 12, the sealing block 12 contacts the inner wall of the sealing groove 10, and the protective plate 11 blocks the top of the outer ring 1, which can reduce the effect of liquid entering the inner ring 3 and the opposite side of the outer ring 1 through the sealing plate 18. By setting a soft pad 13, the surface of the first connecting frame 7 can be protected. By setting a mounting hole 14, a reserved groove 15, and a rubber pad 16, the rubber pad 16 is placed through the mounting hole 14 and the reserved groove 15. Then, the user operates the screw to make the screw threadedly connected to the inner wall of the mounting hole 14. Then, the screw contacts other instruments, and the first connecting frame 7 is bolted to other instruments.

[0033] Specifically, such as Figure 4 As shown, the inner wall of the outer ring 1 has two mounting grooves 17, and a sealing disc 18 is movably connected inside the two mounting grooves 17. The sealing disc 18 is fitted onto the surface of the inner ring 3.

[0034] Specifically, such as Figure 1 , Figure 3 As shown, a protective pad 19 is fitted on the surface of the outer ring 1, and the protective pad 19 is made of silicone.

[0035] In this embodiment: by setting two mounting grooves 17 and two sealing discs 18, the two sealing discs 18 respectively contact the inner walls of the two mounting grooves 17, which can protect and shield the inner walls of the outer ring 1 and the inner ring 3. By setting a protective pad 19, the outer ring 1 can be protected, reducing the problem of other items causing damage to the outer ring 1.

[0036] Specifically, such as Figure 5 As shown, the top of the second connecting frame 8 is provided with a threaded hole 20, and a threaded rod 21 is threadedly connected inside the threaded hole 20.

[0037] Specifically, such as Figure 5As shown, a gasket 22 is fitted on the surface of the threaded rod 21 to contact the inner wall of the threaded hole 20. The gasket 22 is made of stainless steel.

[0038] In this embodiment: by setting a threaded hole 20 and a threaded rod 21, the threaded rod 21 passes through the threaded hole 20 and is threaded to the inner wall of the threaded hole 20, and then contacts other instruments, thereby achieving the bolting of the second connecting frame 8 to other instruments. By setting a gasket 22, the connectivity between the threaded rod 21 and the threaded hole 20 can be increased.

[0039] Working Principle: When the hub rotates, centrifugal force is generated, causing the lubricating oil to move towards the inner wall of the outer ring 1. At this time, the circular hole 905 on the inner wall of the outer ring 1 becomes a channel for the lubricating oil to enter the cavity 901 under the action of centrifugal force. The lubricating oil enters the cavity 901 through the circular hole 905 in the direction of centrifugal force, completing the initial convergence of the lubricating oil. The lubricating oil entering the cavity 901 first contacts the inclined plate 903. The inclined plate 903 has a specific inclination angle, which uses gravity to guide the lubricating oil to flow along the inclined direction. Under the guidance of the inclined plate 903, the lubricating oil flows towards the interceptor plate 904, initially planning the flow path of the lubricating oil in the cavity 901. The interceptor plate 904 is set on the lubricating oil flow path guided by the inclined plate 903. It blocks the direct flow of the lubricating oil, changes its flow direction, and intercepts it. The triangular plate 906 fixed near the inclined plate 903 of the plate 904 further guides the lubricating oil. The unique shape of the triangular plate 906 allows the lubricating oil to be more accurately guided to the hole 902 after contacting the interceptor plate 904. The lubricating oil guided by the triangular plate 906 reaches the hole 902, which is the channel for the lubricating oil to be discharged from the cavity 901. Under the coordinated guidance of the inclined plate 903, the interceptor plate 904, and the triangular plate 906, the lubricating oil flows out of the cavity 901 through the hole 902. The lubricating oil discharged from the hole 902 directly enters the first groove 2 and then contacts the balls 6 inside the cage 5. This lubricating oil provides the necessary lubrication for the balls 6, reduces the friction of the balls 6 during rolling, and improves the lubrication efficiency of the cage 5 and the balls 6.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hub bearing with a self-lubricating oil reservoir structure, comprising an outer ring (1), characterized in that: The inner wall of the outer ring (1) is provided with a first groove (2), the inner ring (3) is rotatably connected to the inside of the outer ring (1), the surface of the inner ring (3) is provided with a second groove (4), the inside of the outer ring (1) is movably connected with a retainer (5), the inside of the retainer (5) is provided with a ball (6), the surface of the outer ring (1) is fixedly connected with a first connecting frame (7), the surface of the outer ring (1) is fixedly connected with a second connecting frame (8), and the inner wall of the outer ring (1) is provided with a drainage component (9). The drainage component (9) includes a cavity (901), the inner wall of the cavity (901) is provided with a hole (902) communicating with the first groove (2), an inclined plate (903) is fixedly connected inside the cavity (901), an intercepting plate (904) that cooperates with the inclined plate (903) is fixedly connected inside the cavity (901), a circular hole (905) is provided on the surface of the first groove (2), and a triangular plate (906) is fixedly connected to the side of the intercepting plate (904) near the inclined plate (903).

2. A hub bearing with a self-lubricating oil reservoir structure according to claim 1, characterized in that: The top of the outer ring (1) is provided with a sealing groove (10), and a protective plate (11) is fixedly connected inside the first connecting frame (7). The bottom of the protective plate (11) is fixedly connected with a sealing block (12) that is movably connected to the sealing groove (10).

3. A hub bearing with a self-lubricating oil reservoir structure according to claim 1, characterized in that: The surface of the first connecting frame (7) is covered with a soft pad (13), and the soft pad (13) is made of silicone.

4. A hub bearing with a self-lubricating oil reservoir structure according to claim 1, characterized in that: The first connecting frame (7) has an installation hole (14) at the top, and a reserved groove (15) is provided at the top of the inner wall of the installation hole (14). A rubber pad (16) is fixedly connected inside the reserved groove (15).

5. A hub bearing with a self-lubricating oil reservoir structure according to claim 1, characterized in that: The inner wall of the outer ring (1) has two mounting grooves (17), and a sealing disc (18) is movably connected inside the two mounting grooves (17). The sealing disc (18) is fitted onto the surface of the inner ring (3).

6. A hub bearing with a self-lubricating oil reservoir structure according to claim 1, characterized in that: The outer ring (1) is covered with a protective pad (19), which is made of silicone.

7. A hub bearing with a self-lubricating oil reservoir structure according to claim 1, characterized in that: The top of the second connecting frame (8) is provided with a threaded hole (20), and a threaded rod (21) is threadedly connected inside the threaded hole (20).

8. A hub bearing with a self-lubricating oil reservoir structure according to claim 7, characterized in that: The surface of the threaded rod (21) is fitted with a gasket (22) that contacts the inner wall of the threaded hole (20), and the gasket (22) is made of stainless steel.

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