A sealing protection device for automobile wheel hub bearings

Abstract

This utility model discloses a sealing and protection device for automotive wheel hub bearings, relating to the field of automotive technology. The device includes a steering arm, a limiting component, and a locking structure. A brake disc mounting bracket is located on the left side of the steering arm. Bearings are mounted on the steering arm and the brake disc mounting bracket, with an annular limiting groove on the outer wall of the bearing. A sealing gasket is provided on the steering arm. The limiting component, consisting of a limiting strip and a retaining strip, is disposed on the steering arm, the brake disc mounting bracket, and the bearing. The locking structure is also disposed on the steering arm, the brake disc mounting bracket, and the bearing. This sealing and protection device for automotive wheel hub bearings provides good connection sealing and eliminates the need for interference fit during bearing installation, facilitating subsequent disassembly and replacement. This avoids the inconvenience caused by difficult disassembly and replacement due to bearing failure, thus improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a sealing protection device for automotive wheel hub bearings. Background Technology

[0002] A Chinese document CN208281379U describes an automotive wheel hub bearing, comprising a flange, an inner ring and an outer ring disposed on the flange, a cage disposed between the inner and outer rings, and steel balls disposed on the cage. The steel balls are arranged in at least two rows. The inner and outer rings each have at least two sets of inner and outer raceways that mate with the outer walls of the steel balls. The inner and outer raceways form a raceway groove for the rolling of the steel balls. The cage is disposed within the raceway groove. An outer sealing ring and a sealing assembly are respectively abutting against the flange and the inner ring at both ends of the outer ring. The sealing assembly includes an inner skeleton and an outer skeleton arranged in an L-shape and abutting against the inner and outer rings respectively, and a connecting skeleton for supporting the connection between the outer skeleton and the inner skeleton. The key technical point is that it has the advantage of reducing the probability of dust and dirt entering, thereby improving the sealing performance of the wheel hub bearing.

[0003] The aforementioned type of automotive wheel hub bearing, when it fails after a certain period of use, is difficult to disassemble and replace due to its interference fit installation method, causing some inconvenience. Therefore, it can be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing protection device for automotive wheel hub bearings, which can solve the problem that when the bearing fails after a certain period of use, the bearing is difficult to disassemble and replace due to the interference fit installation method, causing certain inconvenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing protection device for automotive wheel hub bearings, comprising an automotive steering arm, a limiting component, and a locking structure. A brake disc mounting bracket is provided on the left side of the automotive steering arm. A bearing is provided on the automotive steering arm and the brake disc mounting bracket. An annular limiting groove is formed on the outer wall of the bearing. A sealing gasket is provided on the automotive steering arm. The limiting component is provided on the automotive steering arm, the brake disc mounting bracket, and the bearing. The limiting component consists of a limiting strip and a locking strip. The locking structure is provided on the automotive steering arm, the brake disc mounting bracket, and the bearing. The locking structure is used to lock the position of the bearing.

[0006] Preferably, the left side of the steering arm of the vehicle has an annular opening and a sealing gasket is fixedly installed on its inner wall, and the sealing gasket is in contact with the brake disc mounting bracket.

[0007] Preferably, a reinforcing ring is fixedly installed on the outer wall of the steering arm, and a sealing ring is fixedly installed on the right side of the brake disc mounting bracket, with the sealing ring in contact with the reinforcing ring.

[0008] Preferably, the limiting strip is fixedly installed on the inner wall of the steering arm of the vehicle. There are four sets of limiting strips distributed in a ring at equal intervals. A limiting groove is opened on the left side of the bearing, and all four sets of limiting strips are located in the limiting groove.

[0009] Preferably, the retaining strip is fixedly installed on the outer wall of the brake disc mounting bracket. There are four sets of retaining strips distributed in a ring at equal intervals, and the bearing is snapped onto the four sets of retaining strips.

[0010] Preferably, the locking structure includes a threaded column, a circular block, and a trapezoidal cylinder. The outer wall of the car steering arm has four sets of circular holes and threaded grooves that are equidistantly distributed in an annular pattern. The circular holes and threaded grooves are interconnected. The threaded column is threadedly installed in the threaded groove. One end of the threaded column is fixedly connected to the trapezoidal cylinder, which is in contact with the annular limiting groove. The other end of the threaded column is fixedly connected to the circular block, which is located in the circular hole.

[0011] Preferably, the steering arm of the vehicle has an annular groove that communicates with a circular hole. A silicone ring is fixedly installed on the inner wall of the annular groove, and the silicone ring contacts the outer wall of the circular block to prevent dust or water from entering from here.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This automotive wheel hub bearing sealing protection device, through the combined use of threaded columns, round blocks, trapezoidal cylinders, sealing gaskets, reinforcing rings, sealing rings, limiting strips, retaining strips, annular limiting grooves, and silicone rings, provides good connection sealing between the automotive steering arm and brake disc mounting bracket after installation. This reduces the risk of bearing damage caused by subsequent dust intrusion and water immersion, thus improving the device's protective effect. Furthermore, it eliminates the need for interference fits in bearing installation, facilitating subsequent disassembly and replacement and avoiding the inconvenience caused by difficult disassembly and replacement due to bearing failure, thereby enhancing the device's practicality. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a front sectional perspective view of the present invention;

[0017] Figure 3 This is a perspective view of the bearing of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged view of part A in the image;

[0019] Figure 5 This is a perspective view of the threaded column of this utility model.

[0020] Reference numerals: 1. Automotive steering arm; 2. Brake disc mounting bracket; 3. Bearing; 4. Locking structure; 41. Threaded post; 42. Round block; 43. Trapezoidal cylinder; 5. Sealing gasket; 6. Reinforcing ring; 7. Sealing ring; 8. Limiting assembly; 81. Limiting strip; 82. Locking strip; 9. Annular limiting groove; 10. Silicone ring. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a sealing protection device for automotive wheel hub bearings, including an automotive steering arm 1, a limiting component 8, and a locking structure 4. A brake disc mounting bracket 2 is provided on the left side of the automotive steering arm 1. A bearing 3 is provided on the automotive steering arm 1 and the brake disc mounting bracket 2. An annular limiting groove 9 is provided on the outer wall of the bearing 3. A sealing gasket 5 is provided on the automotive steering arm 1. The limiting component 8 is provided on the automotive steering arm 1, the brake disc mounting bracket 2, and the bearing 3. The limiting component 8 is composed of a limiting strip 81 and a locking strip 82. The locking structure 4 is provided on the automotive steering arm 1, the brake disc mounting bracket 2, and the bearing 3. The locking structure 4 is used to lock the position of the bearing 3.

[0023] The left side of the steering arm 1 has an annular opening and a sealing gasket 5 is fixedly installed on its inner wall. The sealing gasket 5 is in contact with the brake disc mounting bracket 2. A reinforcing ring 6 is fixedly installed on the outer wall of the steering arm 1. A sealing ring 7 is fixedly installed on the right side of the brake disc mounting bracket 2. The sealing ring 7 is in contact with the reinforcing ring 6. A limiting strip 81 is fixedly installed on the inner wall of the steering arm 1. There are four sets of limiting strips 81, which are distributed in an annular pattern at equal intervals. A limiting groove is opened on the left side of the bearing 3. All four sets of limiting strips 81 are located in the limiting groove. A retaining strip 82 is fixedly installed on the outer wall of the brake disc mounting bracket 2. There are four sets of retaining strips 82, which are distributed in an annular pattern at equal intervals. The bearing 3 is snapped onto the four sets of retaining strips 82.

[0024] The locking structure 4 includes a threaded post 41, a round block 42, and a trapezoidal cylinder 43. The outer wall of the steering arm 1 has four sets of annularly spaced circular holes and threaded grooves, which are interconnected. The threaded post 41 is threaded into the threaded groove. One end of the threaded post 41 is fixedly connected to the trapezoidal cylinder 43, which contacts the annular limiting groove 9. The other end of the threaded post 41 is fixedly connected to the round block 42, which is located inside the circular hole. The steering arm 1 has an annular groove that communicates with the circular hole. A silicone ring 10 is fixedly installed on the inner wall of the annular groove, contacting the outer wall of the round block 42. By using an Allen wrench to rotate the round block 42 and the threaded post 41 clockwise, the trapezoidal cylinder 43 is automatically driven to insert into the annular groove. The bearing 3 can be positioned and locked within the annular limiting groove 9. When the bearing 3 needs to be disassembled, use an Allen wrench to rotate the round block 42 and the threaded column 41 counterclockwise. Then, the trapezoidal column 43 will automatically disengage from the annular limiting groove 9. After that, pull the car steering arm 1 and the brake disc mounting bracket 2 to separate them and disassemble the bearing 3. On the one hand, this ensures that the car steering arm 1 and the brake disc mounting bracket 2 have good connection and sealing after installation, reducing the possibility of dust intrusion and water immersion that could damage the bearing 3, thus improving the protective effect of the device. On the other hand, it allows the bearing 3 to be installed without interference fit, making it easier to disassemble and install the bearing 3 later. This avoids the inconvenience caused by the difficulty in disassembling and replacing the bearing 3 when it fails, thus improving the practicality of the device.

[0025] Working principle: Use an Allen wrench to rotate the round block 42 and threaded post 41 clockwise, which will automatically drive the trapezoidal post 43 to insert into the annular limiting groove 9, thereby positioning and locking the bearing 3. When the bearing 3 needs to be removed, use an Allen wrench to rotate the round block 42 and threaded post 41 counterclockwise, which will automatically drive the trapezoidal post 43 to disengage from the annular limiting groove 9. Then, pull the steering knuckle arm 1 and the brake disc mounting bracket 2 to separate them and remove the bearing 3.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sealing protection device for automotive wheel hub bearings, characterized in that, include: The car steering arm (1) has a brake disc mounting bracket (2) on its left side. The car steering arm (1) and the brake disc mounting bracket (2) are provided with bearings (3). The outer wall of the bearing (3) is provided with an annular limiting groove (9). The car steering arm (1) is provided with a sealing gasket (5). The limiting assembly (8) is provided on the car steering arm (1), brake disc mounting bracket (2) and bearing (3). The limiting assembly (8) consists of a limiting strip (81) and a retaining strip (82). A locking structure (4) is provided on the steering arm (1), brake disc mounting bracket (2) and bearing (3) of the vehicle. The locking structure (4) is used to lock the position of the bearing (3).

2. The automotive wheel hub bearing sealing protection device according to claim 1, characterized in that: The left side of the car steering arm (1) has an annular opening and a sealing gasket (5) is fixedly installed on its inner wall. The sealing gasket (5) is in contact with the brake disc mounting bracket (2).

3. The automotive wheel hub bearing sealing protection device according to claim 2, characterized in that: A reinforcing ring (6) is fixedly installed on the outer wall of the car steering arm (1), and a sealing ring (7) is fixedly installed on the right side of the brake disc mounting bracket (2), with the sealing ring (7) in contact with the reinforcing ring (6).

4. The automotive wheel hub bearing sealing protection device according to claim 1, characterized in that: The limiting strip (81) is fixedly installed on the inner wall of the car steering arm (1). There are four sets of limiting strips (81) and they are distributed in a ring at equal intervals. A limiting groove is opened on the left side of the bearing (3), and all four sets of limiting strips (81) are located in the limiting groove.

5. The automotive wheel hub bearing sealing protection device according to claim 1, characterized in that: The clips (82) are fixedly installed on the outer wall of the brake disc mounting bracket (2). There are four sets of clips (82) and they are distributed in a ring at equal intervals. The bearing (3) is snapped onto the four sets of clips (82).

6. The automotive wheel hub bearing sealing protection device according to claim 1, characterized in that: The locking structure (4) includes a threaded column (41), a round block (42) and a trapezoidal column (43). The outer wall of the car steering arm (1) has four sets of circular holes and threaded grooves that are distributed in an annular pattern. The circular holes and threaded grooves are interconnected. The threaded column (41) is threaded into the threaded groove. One end of the threaded column (41) is fixedly connected to the trapezoidal column (43). The trapezoidal column (43) is in contact with the annular limiting groove (9). The other end of the threaded column (41) is fixedly connected to the round block (42). The round block (42) is located in the circular hole.

7. The automotive wheel hub bearing sealing protection device according to claim 6, characterized in that: The car steering arm (1) has an annular groove that communicates with a circular hole. A silicone ring (10) is fixedly installed on the inner wall of the annular groove, and the silicone ring (10) is in contact with the outer wall of the circular block (42).

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