CN210510036U - Roller assembly capable of improving reliability of brake roller - Google Patents
Roller assembly capable of improving reliability of brake roller Download PDFInfo
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- CN210510036U CN210510036U CN201921107602.1U CN201921107602U CN210510036U CN 210510036 U CN210510036 U CN 210510036U CN 201921107602 U CN201921107602 U CN 201921107602U CN 210510036 U CN210510036 U CN 210510036U
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- roller
- brake
- bushing
- reliability
- brake shoe
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Abstract
The utility model discloses a roller assembly capable of improving the reliability of a brake roller, which belongs to the field of automobile axles, and aims to solve the problem that the braking force is insufficient due to the rust locking between the roller and a roller shaft of a drum brake in the existing automobile axles; slow braking return; the service life of the brake is reduced, and the like. The utility model provides a can promote the gyro wheel assembly of stopper gyro wheel reliability, by the gyro wheel axle, gyro wheel and bush make up; by the design of the roller shaft and the matching of the bushing and the sealing structure thereof, compared with the original roller structure, the lubricating performance is improved; the occurrence of corrosion is effectively prevented; the safety and the reliability of the brake are improved.
Description
Technical Field
The utility model belongs to car axle field, concretely relates to promote brake shoe assembly of stopper gyro wheel reliability.
Background
In domestic automobile axles, rust corrosion failure often occurs between a roller and a roller shaft of a drum brake, so that the roller and the roller shaft cannot rotate freely. When braking, the cam shaft is supposed to be braked to push the roller to rotate, so that the brake shoe assembly is opened; the practice turns to relying on sliding friction between the brake cam shaft and the roller to cause the brake shoe assembly to expand. Such variations result in insufficient braking force; slow braking return; the service life of the brake is reduced, and the like.
Disclosure of Invention
The utility model aims to solve the problem that in the existing automobile axle, the braking force is insufficient due to the rust between the roller and the roller shaft of the drum brake; slow braking return; the service life of the brake is reduced, and the like. The roller assembly for improving the reliability of the roller of the brake improves the safety and the service life of the brake.
The utility model discloses an adopt following technical scheme to realize:
a roller assembly capable of improving the reliability of a brake roller comprises a roller shaft 6, a roller 8 and a bush 9;
the roller shaft 6 is of a circular shaft diameter structure and is used for being matched with a circular hole of the brake shoe 3 and the lining 9; the outer end part of the brake shoe is of a flange structure and is matched with the end surface of the brake shoe 3 at the outer side; the outer diameter of the flange is provided with a plane milling structure which can be matched with a boss of the outer brake shoe 3 to prevent the roller shaft 6 from rotating; the circular shaft diameter adopts a structure with three annular grooves, one annular groove is positioned at the inner side end part, a clamping ring 7 is arranged in the annular groove, and one side of the clamping ring 7 is attached to the end surface of the inner side brake shoe 3 to form axial limit; the other two annular grooves are arranged at the middle part of the roller shaft 6 for installing the bush 9, and the O-shaped ring 5 arranged in the annular grooves is matched with the bush 9 to form sealing; the roller 8 is sleeved outside the bushing 9 and is fixed on the roller shaft 6 through the bushing 9;
further, the lining 9 is made of a material (such as copper or a non-metal material) which is not prone to rust.
A plurality of pits can be arranged on the inner surface of the round hole of the bushing 9 for storing lubricating grease and improving the lubricating effect.
The utility model has the advantages that:
a structure for improving the reliability of a brake roller. By adding a stainless lining structure between the roller and the roller shaft of the drum brake and adding two O-rings on the roller shaft, the roller is used for sealing grease. Compared with the original roller structure, the lubricating performance is improved; the occurrence of corrosion is effectively prevented; the safety and the reliability of the brake are improved; the service life of the brake is prolonged.
Drawings
FIG. 1 is a brake assembly view;
FIG. 2a is a front view of the brake shoe assembly;
FIG. 2b is a cross-sectional view of the brake shoe assembly;
FIG. 3a is a front view of the middle roller shaft of the present invention;
fig. 3b is a side view of the middle roller shaft of the present invention;
FIG. 4 is a view of the roller assembly of the present invention;
Detailed Description
The invention is further elucidated with reference to the drawing.
Referring to fig. 1, a view of a brake assembly, which is an application part of a roller assembly for improving reliability of a brake roller, an S-shaped outer diameter of a brake camshaft 1 is in contact with an outer diameter of a roller 8 of a brake shoe assembly 2; the brake camshaft 1 rotates, the S-shaped push roller 8 rotates to drive the brake shoe assembly 2, and the brake shoe assembly 2 is opened to realize a braking function.
The roller assembly capable of improving the reliability of the brake roller in the embodiment comprises a roller shaft 6, a roller 8 and a bush 9;
as shown in fig. 2b and fig. 3a, the roller shaft 6 is a circular shaft diameter structure, and is used for matching with a circular hole of the brake shoe 3 and the bushing 9; the outer end part of the brake shoe is of a flange structure and is matched with the end surface of the brake shoe 3 at the outer side;
as shown in fig. 3b, the outer diameter of the flange has a flat milling structure, which can be matched with the boss of the outer brake shoe 3 to prevent the roller shaft 6 from rotating;
as shown in fig. 2b and fig. 3a, the circular shaft diameter adopts three annular groove structures, wherein one annular groove is positioned at the end part of the inner side, a snap ring 7 is installed in the annular groove, and one side of the snap ring 7 is attached to the end surface of the inner side brake shoe 3 to form axial limit; the other two annular grooves are arranged at the middle part of the roller shaft 6 for installing the bush 9, and the O-shaped ring 5 arranged in the annular grooves is matched with the bush 9 to form sealing;
as shown in fig. 2b and 4, the roller 8 is sleeved outside the bushing 9 and fixed on the roller shaft 6 through the bushing 9.
In addition to this embodiment, the bushing 9 is made of a non-corrosive material (copper or nonmetal), and the circular hole of the bushing 9 has a pit structure for storing grease, so that the corrosion prevention and lubrication effects can be improved.
Claims (4)
1. A roller assembly capable of improving the reliability of a brake roller is characterized in that the assembly consists of a roller shaft (6), a roller (8) and a bushing (9);
the roller shaft (6) is of a circular shaft diameter structure and is used for being matched with a circular hole of the brake shoe (3) and the bushing (9); the outer end part of the brake shoe is of a flange structure and is matched with the end surface of the brake shoe (3) at the outer side; the outer diameter of the flange is provided with a plane milling structure which can be matched with a boss of the outer brake shoe (3) to prevent the roller shaft (6) from rotating; the circular shaft diameter adopts a structure with three annular grooves, one annular groove is positioned at the end part of the inner side, a clamping ring (7) is arranged in the annular groove, and one side of the clamping ring (7) is attached to the end surface of the inner side brake shoe (3) to form axial limit; the other two annular grooves are arranged at the middle part of the roller shaft (6) for installing the bushing (9), and an O-shaped ring (5) installed in the annular grooves is matched with the bushing (9) to form sealing; the roller (8) is sleeved outside the bushing (9) and is fixed on the roller shaft (6) through the bushing (9).
2. The roller assembly for improving the reliability of brake rollers according to claim 1, wherein the lining (9) is made of a material which is not easily rusted.
3. The brake roller assembly of claim 1, wherein the non-rusting material is copper or a non-metal material.
4. The roller assembly for improving the reliability of brake rollers according to claim 1, wherein a plurality of recesses are formed in the inner surface of the circular hole of the bush (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921107602.1U CN210510036U (en) | 2019-07-16 | 2019-07-16 | Roller assembly capable of improving reliability of brake roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921107602.1U CN210510036U (en) | 2019-07-16 | 2019-07-16 | Roller assembly capable of improving reliability of brake roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510036U true CN210510036U (en) | 2020-05-12 |
Family
ID=70583380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921107602.1U Active CN210510036U (en) | 2019-07-16 | 2019-07-16 | Roller assembly capable of improving reliability of brake roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510036U (en) |
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2019
- 2019-07-16 CN CN201921107602.1U patent/CN210510036U/en active Active
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