Motor vehicle bearing sealing element

Abstract

The utility model discloses a motor vehicle bearing sealing element, relates to the technical field of sealing elements, and aims to solve the problems that in the prior art, when a sealing element is used, grooves need to be formed in the two sides of an inner ring and an outer ring of a bearing, so that the universality of the sealing element is reduced, the sealing element is easily driven to be distorted when the bearing rotates, and the stable use of the sealing element is influenced. The bearing body comprises an outer ring, multiple balls and an inner ring, the inner ring is arranged on the inner side of the outer ring, the balls are located between the outer ring and the inner ring, an outer pressing ring is fixedly installed on the outer side of a sealing piece, an inner pressing ring is fixedly installed in the sealing piece, an outer sealing ring is fixedly installed on one side of the sealing piece, and a sealing ring is fixedly installed on the other side of the sealing piece. An inner sealing ring is fixedly installed on one side of the sealing piece along the inner side of the outer sealing ring, a fixing block is arranged in the sealing piece, one end of the fixing block extends to the position between the outer sealing ring and the inner sealing ring, and first springs are symmetrically arranged above and below the fixing block respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of seals, in particular to a sealing member for a motor vehicle bearing. Background Technique

[0002] A motor vehicle bearing is a rotating component used for supporting and reducing friction, usually composed of an inner ring, an outer ring, and rolling elements. When a motor vehicle is running, it will bear the weight from the ground and the output force of the power system. The bearing needs to bear these loads and transfer them to other components. In order to prevent the leakage of lubricating oil inside the bearing and the entry of dust, a sealing member needs to be installed on the bearing;

[0003] For example, the authorized patent with the publication number of CN220687867U (a sealing member for a motor vehicle bearing): It includes a motor vehicle bearing body and a sealing piece. The motor vehicle bearing body includes an inner ring, an outer ring, and rolling balls. Rolling balls are rotatably connected between the inner ring and the outer ring. Installation grooves are provided on the left and right sides of the outer wall of the inner ring and the inner wall of the outer ring. Sealing pieces are installed on the left and right sides between the inner ring and the outer ring. A sealing lip is provided on the outer wall of the sealing piece, and the sealing lip is clamped in the installation groove;

[0004] Although the above-mentioned prior art can seal the left and right sides between the inner ring and the outer ring to make it in a sealed state, when the sealing member is in use, it is necessary to open grooves on both sides of the inner ring and the outer ring of the bearing, which reduces the versatility of the sealing member. Moreover, by clamping the sealing member into the grooves opened on the inner ring and the outer ring, the bearing is likely to drive the sealing member to twist during rotation, affecting the stable use of the sealing member. Therefore, there is an urgent need in the market to develop a sealing member for a motor vehicle bearing to help people solve the existing problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sealing member for a motor vehicle bearing to solve the problems mentioned in the above background technique, that is, when the sealing member is in use, it is necessary to open grooves on both sides of the inner ring and the outer ring of the bearing, which reduces the versatility of the sealing member, and the bearing is likely to drive the sealing member to twist during rotation, affecting the stable use of the sealing member.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sealing member for a motor vehicle bearing, including a bearing body and a sealing piece. The bearing body includes an outer ring, rolling balls, and an inner ring. The inner ring is arranged inside the outer ring. A plurality of rolling balls are provided, and the rolling balls are between the outer ring and the inner ring. An outer pressure ring is fixedly installed on the outer side of the sealing piece, an inner pressure ring is fixedly installed inside the sealing piece, an outer sealing ring is fixedly installed on one side of the sealing piece, and an inner sealing ring is fixedly installed along the inner side of the outer sealing ring on one side of the sealing piece.

[0007] Preferably, a fixing block is arranged inside the sealing piece, one end of the fixing block extends between the outer sealing ring and the inner sealing ring, first springs are symmetrically arranged above and below the fixing block respectively, spring seats are fixedly installed on one sides of the two first springs facing the fixing block, and arc-shaped pressing plates are fixedly installed on the other sides of the two first springs. The upper end surface of the arc-shaped pressing plate above is attached to the inner side surface of the outer sealing ring, and the lower end surface of the arc-shaped pressing plate below is attached to the outer side surface of the inner sealing ring.

[0008] Preferably, a translation cavity is arranged inside the fixing block, a pressing block is arranged inside the translation cavity, a push plate is fixedly installed on one side of the pressing block, block grooves are symmetrically arranged above and below the translation cavity inside the fixing block respectively, push blocks are arranged inside the block grooves, and the two push blocks correspond to the positions of the two spring seats and are in contact with them.

[0009] Preferably, first inclined surfaces are arranged on the upper end surface and the lower end surface of the push plate, and a second inclined surface is arranged on the end surface of the push block facing the push plate.

[0010] Preferably, a column groove is arranged inside the push block on the side facing the spring seat, a central column is arranged inside the first spring, one end of the central column is fixedly connected to the arc-shaped pressing plate, and the other end of the central column penetrates through the spring seat and extends into the column groove inside the push block.

[0011] Preferably, an elastic groove is arranged above the translation cavity inside the fixing block, a second spring is arranged inside the elastic groove, a plug block is fixedly installed below the second spring, a top plate is fixedly installed above the second spring, and a slot is arranged on the upper end surface of the pressing block.

[0012] Preferably, a vertical rod is arranged inside the second spring, one end of the vertical rod is fixedly connected to the plug block, and the other end of the vertical rod penetrates through the top plate and extends to the outside of the sealing piece.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with an outer sealing ring and an inner sealing ring on one side of the sealing piece, so that when sealing the bearing, the sealing piece can be installed on the side of the bearing, and the outer sealing ring and the inner sealing ring are placed between the outer ring and the inner ring of the bearing body. Through the fitting of the outer side surface of the outer sealing ring and the inner side surface of the outer ring of the bearing, and the fitting of the inner side surface of the inner sealing ring and the outer side surface of the inner ring of the bearing, the sealing between the outer ring and the inner ring of the bearing can be achieved without grooving on the outer ring and the inner ring of the bearing, so that the sealing member can be applied to other conventional bearings of the same specification and size, increasing the versatility of the sealing member. And through the way that the outer sealing ring and the inner sealing ring are respectively fitted with the outer ring and the inner ring of the bearing, the distortion of the sealing member caused by the rotation of the bearing can also be reduced, increasing the stability of the use of the sealing member. At the same time, through the provided outer pressure ring and inner pressure ring, the gaps at the contact parts of the outer sealing ring, the inner sealing ring, the outer ring and the inner ring of the bearing can be blocked, which is beneficial to improving the sealing performance of the sealing member and increasing the practicability.

[0015] 2. The utility model is symmetrically provided with a first spring above and below the fixed block respectively, so that when installing the sealing member, through the elastic action of the first spring, it is beneficial to elastically press the outer sealing ring and the inner sealing ring respectively, increasing the stability of the contact between the outer sealing ring and the inner sealing ring and the outer ring and the inner ring of the bearing respectively, being able to automatically adapt to the slight deformation of the bearing, maintaining continuous sealing, and increasing the practicability of the sealing member.

[0016] 3. The utility model is provided with a second spring and an insertion block, so that after pressing the pressing block, through the elastic action of the second spring, the insertion block can be elastically inserted into the inside of the slot to realize the position fixation of the pressing block, which is beneficial to the stable installation of the sealing member and increases the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a motor vehicle bearing sealing member of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the sealing piece of the present utility model;

[0019] Figure 3 It is a cross-sectional view of the bearing body of the present utility model;

[0020] Figure 4 It is an enlarged schematic diagram of part A of the present utility model;

[0021] Figure 5 It is an enlarged schematic diagram of part B of the present utility model;

[0022] Figure 6 It is a schematic structural diagram of the push plate of the present utility model.

[0023] In the figure: 1. Bearing body; 101. Outer ring; 102. Ball; 103. Inner ring; 2. Sealing piece; 3. Outer pressure ring; 4. Inner pressure ring; 5. Outer sealing ring; 6. Inner sealing ring; 7. Fixed block; 8. Pressing block; 801. Slot; 9. Pushing plate; 10. Pushing block; 11. Spring seat; 12. First spring; 13. Arc-shaped pressing plate; 14. Central column; 15. Upright rod; 16. Second spring; 17. Insert block; 18. Top plate. Specific embodiments

[0024] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1-6 , an embodiment provided by the present invention: A motor vehicle bearing seal, including a bearing body 1 and a sealing piece 2. The bearing body 1 includes an outer ring 101, balls 102 and an inner ring 103. The inner ring 103 is arranged inside the outer ring 101. A plurality of balls 102 are provided, and the balls 102 are located between the outer ring 101 and the inner ring 103. An outer pressure ring 3 is fixedly installed on the outer side of the sealing piece 2, an inner pressure ring 4 is fixedly installed inside the sealing piece 2, an outer sealing ring 5 is fixedly installed on one side of the sealing piece 2, and an inner sealing ring 6 is fixedly installed along the inner side of the outer sealing ring 5 on one side of the sealing piece 2. The outer side surface of the outer sealing ring 5 is in contact with the inner side surface of the outer ring 101, and the inner side surface of the inner sealing ring 6 is in contact with the outer side surface of the inner ring 103.

[0026] During use, when installing the seal, the sealing piece 2 is installed on the side of the bearing body 1, so that the outer sealing ring 5 and the inner sealing ring 6 are placed between the outer ring 101 and the inner ring 103 of the bearing body 1, which can seal between the outer ring 101 and the inner ring 103. Through the provided outer pressure ring 3 and inner pressure ring 4, the gaps at the contact parts of the outer sealing ring 5 and the inner sealing ring 6 with the outer ring 101 and the inner ring 103 can be blocked, which is beneficial to improving the sealing performance of the seal.

[0027] Furthermore, a fixed block 7 is arranged inside the sealing piece 2. One end of the fixed block 7 extends between the outer sealing ring 5 and the inner sealing ring 6. First springs 12 are symmetrically arranged above and below the fixed block 7. Spring seats 11 are fixedly installed on one side of the two first springs 12 facing the fixed block 7. The other sides of the two first springs 12 are fixedly installed with arc-shaped pressing plates 13. The upper end surface of the upper arc-shaped pressing plate 13 is in contact with the inner side surface of the outer sealing ring 5, and the lower end surface of the lower arc-shaped pressing plate 13 is in contact with the outer side surface of the inner sealing ring 6. By arranging the two arc-shaped pressing plates 13 as arc-shaped plates, it is convenient for the two arc-shaped pressing plates 13 to be in contact with the outer sealing ring 5 and the inner sealing ring 6 respectively.

[0028] Furthermore, a translation cavity is provided inside the fixed block 7, and a pressing block 8 is arranged inside the translation cavity. A push plate 9 is fixedly installed on one side of the pressing block 8. Block grooves are symmetrically arranged above and below the translation cavity inside the fixed block 7, and push blocks 10 are arranged inside the block grooves. The two push blocks 10 correspond to and contact the two spring seats 11 respectively. First inclined surfaces are arranged on the upper end surface and the lower end surface of the push plate 9, and second inclined surfaces are arranged on the side end surfaces of the push blocks 10 facing the push plate 9. The inclination angles of the first inclined surfaces and the second inclined surfaces match each other, so that the inclined surface parts on the push blocks 10 and the push plate 9 are attached to each other. Thus, by pressing the pressing block 8 to drive the push plate 9 to move, the two push blocks 10 move upward and downward respectively, and then the two first springs 12 are pressed and compressed. Through the elastic action of the springs, the two arc-shaped pressing plates 13 can elastically press the outer sealing ring 5 and the inner sealing ring 6 respectively, increasing the stability of the contact between the outer sealing ring 5 and the inner sealing ring 6 and the outer ring 101 and the inner ring 103 respectively.

[0029] Furthermore, a column groove is arranged inside the push block 10 on the side facing the spring seat 11. A central column 14 is arranged inside the first spring 12. One end of the central column 14 is fixedly connected to the arc-shaped pressing plate 13, and the other end of the central column 14 penetrates through the spring seat 11 and extends into the column groove inside the push block 10. By arranging the central column 14, the position stability of the first spring 12 can be improved.

[0030] Furthermore, an elastic groove is arranged above the translation cavity inside the fixed block 7, and a second spring 16 is arranged inside the elastic groove. The second spring 16 is set in a compressed state. An insertion block 17 is fixedly installed below the second spring 16, and a top plate 18 is fixedly installed above the second spring 16. A slot 801 is arranged on the upper end surface of the pressing block 8. Thus, after pressing the pressing block 8, when the slot 801 corresponds to the insertion block 17, through the elasticity of the second spring 16, the insertion block 17 can elastically insert into the slot 801 to limit the position of the pressing block 8.

[0031] Furthermore, a vertical rod 15 is arranged inside the second spring 16. One end of the vertical rod 15 is fixedly connected to the insertion block 17, and the other end of the vertical rod 15 penetrates through the top plate 18 and extends to the outside of the sealing piece 2. By pulling the vertical rod 15, it is convenient to drive the insertion block 17 to move out of the slot 801, facilitating the movement of the pressing block 8 and increasing the practicability.

[0032] Working principle: When in use, during the installation of the seal, the sealing piece 2 is installed on the side of the bearing body 1, and the outer seal ring 5 and the inner seal ring 6 are placed between the outer ring 101 and the inner ring 103 of the bearing body 1. Through the fitting of the outer side surface of the outer seal ring 5 and the inner side surface of the outer ring 101, and the fitting of the inner side surface of the inner seal ring 6 and the outer side surface of the inner ring 103, the space between the outer ring 101 and the inner ring 103 can be sealed. At the same time, press the pressure block 8 to drive the push plate 9 to move horizontally, so that the two push blocks 10 move upward and downward respectively, and then the two first springs 12 can be pressed to compress the two first springs 12. Through the elastic action of the springs, the two first springs 12 elastically press the two arc-shaped pressing plates 13, and then elastically press the outer seal ring 5 and the inner seal ring 6, increasing the stability of the contact between the outer seal ring 5 and the inner seal ring 6 and the outer ring 101 and the inner ring 103 respectively.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A motor vehicle bearing seal, comprising a bearing body (1) and a sealing sheet (2), characterized in that: The bearing body (1) comprises an outer ring (101), a ball (102) and an inner ring (103); the inner ring (103) is arranged on the inner side of the outer ring (101); a plurality of balls (102) are arranged, and the balls (102) are located between the outer ring (101) and the inner ring (103); an outer pressure ring (3) is fixedly mounted on the outer side of the sealing plate (2); an inner pressure ring (4) is fixedly mounted on the inner side of the sealing plate (2); an outer sealing ring (5) is fixedly mounted on one side of the sealing plate (2); and an inner sealing ring (6) is fixedly mounted on one side of the sealing plate (2) along the inner side of the outer sealing ring (5).

2. A motor vehicle bearing seal according to claim 1, characterized in that: A fixing block (7) is arranged inside the sealing sheet (2), one end of the fixing block (7) extends between the outer sealing ring (5) and the inner sealing ring (6), and springs (12) are symmetrically arranged above and below the fixing block (7), and spring seats (11) are fixedly installed on one side of the two springs (12) facing the fixing block (7), and arc-shaped pressure plates (13) are fixedly installed on the other side of the two springs (12), and the upper end surface of the arc-shaped pressure plate (13) at the upper end is in contact with the inner side surface of the outer sealing ring (5), and the lower end surface of the arc-shaped pressure plate (13) at the lower end is in contact with the outer side surface of the inner sealing ring (6).

3. A motor vehicle bearing seal according to claim 2, characterized in that: A translation cavity is arranged inside the fixed block (7), and a pressure block (8) is arranged inside the translation cavity. A push plate (9) is fixedly mounted on one side of the pressure block (8). Block grooves are symmetrically arranged above and below the translation cavity inside the fixed block (7), and a push block (10) is arranged inside the block groove. The two push blocks (10) correspond to and contact the positions of the two spring seats (11) respectively.

4. A motor vehicle bearing seal according to claim 3, characterized in that: The upper end surface and the lower end surface of the push plate (9) are both provided with inclined surface 1, and the end surface of the push block (10) on one side facing the push plate (9) is provided with inclined surface 2.

5. A motor vehicle bearing seal according to claim 4, characterized in that: A column groove is provided inside the push block (10) on one side facing the spring seat (11), and a center column (14) is provided inside the spring (12). One end of the center column (14) is fixedly connected to the arc-shaped pressure plate (13), and the other end of the center column (14) passes through the spring seat (11) and extends into the column groove of the push block (10).

6. A motor vehicle bearing seal according to claim 5, characterized in that: The interior of the fixed block (7) is provided with an elastic groove along the top of the translation cavity, and a second spring (16) is provided inside the elastic groove, an insert block (17) is fixedly installed below the second spring (16), a top plate (18) is fixedly installed above the second spring (16), and a slot (801) is provided on the upper end surface of the pressing block (8).

7. A motor vehicle bearing seal according to claim 6, characterized in that: A vertical rod (15) is arranged inside the second spring (16), one end of the vertical rod (15) is fixedly connected to the insert block (17), and the other end of the vertical rod (15) passes through the top plate (18) and extends to the outside of the sealing sheet (2).

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