Plane bearing for automobile brake

Abstract

The utility model belongs to the field of automobile brakes, particularly relates to a plane bearing for an automobile brake, and aims to solve the problems that a retainer is positioned between an upper gasket and a lower gasket when the conventional plane bearing is used, the middle retainer and a ball are easily polluted by dust or impurities after long-time use, the service life is influenced, and the upper gasket and the lower gasket are separated. According to the technical scheme, the ball bearing comprises a bottom ring and a top ring, the section of the bottom ring is in an L shape, a retainer is arranged in the bottom ring, a plurality of balls are installed in the retainer, and the top ring is located at the top of the bottom ring; according to the utility model, the second sealing ring is arranged between the bottom ring and the top ring, so that not only can the sealing effect be formed between the bottom ring and the outer ring of the top ring through the second sealing ring, but also the bottom ring and the top ring can be clamped, so that people can conveniently take and use; and meanwhile, the bottom ring and the top ring can be conveniently separated by a worker through the pull opening.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive brakes, in particular to a plain bearing for automotive brakes. Background Art

[0002] A plain bearing is a special type of bearing, also known as a thrust bearing, which consists of a plain cage assembly with rolling elements and a plain washer. The design of this bearing enables high load capacity and high stiffness to be obtained in a very small space. Common forms of rolling elements include needle rollers, rollers, and balls, etc.

[0003] Plain bearings are widely used in the automotive industry. When the existing plain bearings are in use, the cage is located between the upper and lower washers. After long-term use, the cage and balls in the middle are easily contaminated by dust or impurities, affecting the service life. At the same time, the upper and lower washers are separated, making it inconvenient to take, place, or transfer. For this reason, a plain bearing for automotive brakes is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages that when the existing plain bearing is in use, the cage is located between the upper and lower washers. After long-term use, the cage and balls in the middle are easily contaminated by dust or impurities, affecting the service life. At the same time, the upper and lower washers are separated, making it inconvenient to take, place, or transfer, and to propose a plain bearing for automotive brakes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plain bearing for automotive brakes includes a bottom ring and a top ring. The cross-section of the bottom ring is L-shaped and a cage is arranged inside. A plurality of balls are installed in the cage, and the top ring is located at the top of the bottom ring;

[0007] A clamping groove is formed in the circumferential outer wall of the top ring, and a second sealing ring is sleeved in the clamping groove. A limiting groove is formed in the circumferential inner wall of the bottom ring, and the second sealing ring is used in cooperation with the limiting groove;

[0008] First sealing rings are bonded to the top and bottom of the cage, and one sides of the two first sealing rings away from the cage are respectively in contact with the bottom surfaces of the top ring and the bottom ring.

[0009] As a further scheme of the utility model, an extension part is integrally formed at the top of the top ring, a ring-shaped positioning ring is integrally formed at the bottom of the extension part, a third sealing ring is sleeved on the circumferential outer wall of the positioning ring, and the top and bottom of the third sealing ring are respectively in contact with the bottom ring and the top ring.

[0010] As a further scheme of the utility model, a plurality of pulling openings are formed in the circumference of the top of the bottom ring, and the pulling openings are inclined.

[0011] As a further solution of the present utility model, the circumferential outer wall at the bottom of the second sealing ring is provided with an inclined surface.

[0012] As a further solution of the present utility model, the sides of the first sealing ring away from the cage are all tapered.

[0013] As a further solution of the present utility model, the first sealing ring, the second sealing ring and the third sealing ring are all made of rubber.

[0014] In this application, the cage is installed on the inner wall of the bottom ring, and the top ring is used to cover the cage. Before capping, the second sealing ring is sleeved into the card slot. When capping, the top ring is pressed down. After the second sealing ring on the top ring is deformed by extrusion, it is inserted into the limiting slot, so as to form a closed effect between the outer rings of the bottom ring and the top ring, avoiding dust or impurities from entering and polluting the cage and the balls. At the same time, the second sealing ring clamps the bottom ring and the top ring between the card slot and the limiting slot, thus preventing the bottom ring and the top ring from separating, which is convenient for people to take and use. A third sealing ring is sleeved on the periphery of the positioning ring, and a secondary sealing effect is formed between the third sealing ring and the top of the bottom ring to increase the sealing performance. After the top ring is installed, the first sealing ring is used to contact the bottom ring and the top ring, so as to seal the inner ring, further preventing dust or impurities from entering the inside of the cage.

[0015] Beneficial effects:

[0016] In the present utility model, for the plain bearing for automobile brakes, by installing the second sealing ring between the bottom ring and the top ring, the second sealing ring can not only form a closed effect between the outer rings of the bottom ring and the top ring, but also clamp the bottom ring and the top ring, thus facilitating people to take and use;

[0017] In the present utility model, for the plain bearing for automobile brakes, by providing the bottom ring with a draw opening on its circumference, and the draw opening is inclined, when the staff separates the top ring and the bottom ring, it can be better stressed, which is convenient for people to operate;

[0018] In the present utility model, by installing the second sealing ring between the bottom ring and the top ring, the second sealing ring can not only form a closed effect between the outer rings of the bottom ring and the top ring, but also clamp the bottom ring and the top ring, thus facilitating people to take and use. At the same time, the draw opening is used to facilitate the staff to separate the bottom ring and the top ring. Description of the drawings

[0019] Figure 1 It is a three-dimensional structure diagram of a plain bearing for automobile brakes proposed by the present utility model;

[0020] Figure 2Schematic cross-sectional structure diagram of a plain bearing for automotive brakes proposed by the present utility model;

[0021] Figure 3 Schematic enlarged structure diagram of point A of a plain bearing for automotive brakes proposed by the present utility model.

[0022] In the figure: 1, bottom ring; 2, top ring; 3, cage; 4, ball; 5, first sealing ring; 6, card slot; 7, second sealing ring; 8, inclined surface; 9, limiting groove; 10, extension part; 11, positioning ring; 12, third sealing ring; 13, opening. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Embodiment 1

[0025] Refer to Figures 1 - 3 , a plain bearing, comprising: a bottom ring 1 and a top ring 2. The cross-section of the bottom ring 1 is L-shaped and a cage 3 is arranged inside. A plurality of balls 4 are installed in the cage 3. The top ring 2 is located at the top of the bottom ring 1. During use, the top ring 2 and the bottom ring 1 rotate through a plurality of balls 4;

[0026] A card slot 6 is opened on the circumferential outer wall of the top ring 2, and a second sealing ring 7 is sleeved in the card slot 6. A limiting groove 9 is opened on the circumferential inner wall of the bottom ring 1. The second sealing ring 7 is used in cooperation with the limiting groove 9. When the second sealing ring 7 is sleeved into the card slot 6 and sealed, the top ring 2 is pressed down. After the second sealing ring 7 on the top ring 2 is deformed by extrusion, it is inserted into the limiting groove 9. As a result, a closed effect is formed between the outer rings of the bottom ring 1 and the top ring 2. At the same time, the second sealing ring 7 clamps the bottom ring 1 and the top ring 2 between the card slot 6 and the limiting groove 9, thereby preventing the bottom ring 1 and the top ring 2 from separating and facilitating people to take and use;

[0027] First sealing rings 5 are bonded to both the top and bottom of the cage 3. The sides of the two first sealing rings 5 away from the cage 3 are respectively in contact with the bottom surface of the top ring 2 and the bottom surface of the bottom ring 1. By using the first sealing rings 5 to contact the bottom ring 1 and the top ring 2, the inner ring is sealed, further preventing dust or impurities from entering the inside of the cage 3.

[0028] This application can be used in the field of automotive brakes and can also be used in other fields applicable to this application.

[0029] Embodiment 2

[0030] Refer to Figures 1 - 3, on the basis of Embodiment 1, an improved plain bearing for automobile brakes is provided, which is applied to the field of automobile brakes.

[0031] In the present utility model, an extension part 10 is integrally formed on the top of the top ring 2. A ring-shaped positioning ring 11 is integrally formed at the bottom of the extension part 10. A third sealing ring 12 is sleeved on the circumferential outer wall of the positioning ring 11. The top and bottom of the third sealing ring 12 are respectively in contact with the bottom ring 1 and the top ring 2. By sleeving the third sealing ring 12 around the positioning ring 11, a secondary sealing effect is formed between the third sealing ring 12 and the top of the bottom ring 1, increasing the sealing performance.

[0032] In particular, a plurality of pulling openings 13 are formed in the circumference of the top of the bottom ring 1. The pulling openings 13 are inclined. By using the pulling openings 13, when the staff separates the top ring 2 and the bottom ring 1, they can be better stressed, facilitating operation.

[0033] It should be noted that a slope 8 is provided on the circumferential outer wall of the bottom of the second sealing ring 7. The provision of the slope 8 facilitates the second sealing ring 7 to be snapped into the limiting groove 9.

[0034] In the present utility model, the sides of the first sealing rings 5 away from the cage 3 are all tapered. The tapered first sealing rings 5 can reduce the contact area, thereby reducing the contact friction while maintaining the sealing effect.

[0035] In particular, the first sealing rings 5, the second sealing rings 7 and the third sealing rings 12 are all made of rubber. Rubber has the effects of deformation and wear resistance, which is convenient for use.

[0036] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A plain bearing for an automobile brake, comprising a bottom ring (1) and a top ring (2), characterized in that, The cross-section of the bottom ring (1) is L-shaped and a cage (3) is arranged inside. A plurality of balls (4) are installed in the cage (3). The top ring (2) is located at the top of the bottom ring (1). A clamping groove (6) is formed in the circumferential outer wall of the top ring (2), and a second sealing ring (7) is sleeved in the clamping groove (6). A limiting groove (9) is formed in the circumferential inner wall of the bottom ring (1), and the second sealing ring (7) is used in cooperation with the limiting groove (9). First sealing rings (5) are bonded to both the top and bottom of the cage (3), and the sides of the two first sealing rings (5) away from the cage (3) are respectively in contact with the bottom surface of the top ring (2) and the bottom surface of the bottom ring (1).

2. The plain bearing for automotive brakes according to claim 1, characterized in that, An extension part (10) is integrally formed at the top of the top ring (2). A ring-shaped positioning ring (11) is integrally formed at the bottom of the extension part (10). A third sealing ring (12) is sleeved on the circumferential outer wall of the positioning ring (11), and the top and bottom of the third sealing ring (12) are respectively in contact with the bottom ring (1) and the top ring (2).

3. The plain bearing for an automotive brake according to claim 2, characterized in that, A plurality of draw openings (13) are formed in the circumference at the top of the bottom ring (1), and the draw openings (13) are inclined.

4. A plain bearing for an automotive brake according to claim 3, characterized in that, An inclined surface (8) is arranged on the circumferential outer wall at the bottom of the second sealing ring (7).

5. A plain bearing for automotive brakes according to claim 4, characterized in that, The sides of the first sealing rings (5) away from the cage (3) are both tapered.

6. The plain bearing for automotive brakes according to claim 5, characterized in that, The first sealing ring (5), the second sealing ring (7) and the third sealing ring (12) are all made of rubber.

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