CN210344085U - EPB calliper piston rotation-proof structure - Google Patents
EPB calliper piston rotation-proof structure Download PDFInfo
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- CN210344085U CN210344085U CN201920703396.4U CN201920703396U CN210344085U CN 210344085 U CN210344085 U CN 210344085U CN 201920703396 U CN201920703396 U CN 201920703396U CN 210344085 U CN210344085 U CN 210344085U
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- piston
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- rotation
- friction
- amortization piece
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- 230000030279 gene silencing Effects 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a EPB calliper piston rotation-proof structure mainly includes piston, antiskid tooth, friction disc backplate, amortization piece, boss, recess, and surface mounting amortization piece on the friction disc backplate, the antiskid tooth that amortization piece contact piston surface was equipped with prevent that the piston is rotatory, is equipped with a recess on the contact surface of piston and amortization piece, and friction disc backplate upper surface is equipped with a boss corresponding groove position department, and the amortization piece is worn out to the boss and is embedded into the recess and fix a position. The utility model effectively solves the problem of piston rotation when the friction force is insufficient at the beginning stage of parking, and improves the anti-rotation effect of the piston during parking without changing the existing structure of the piston; the friction between the piston and the silencing plate is reduced, and the performance reduction caused by the abrasion of the silencing plate is prevented.
Description
Technical Field
The utility model relates to a field of EPB calliper assembly, concretely relates to EPB calliper piston anti-rotation structure.
Background
The EPB caliper limits the rotation of the screw nut by the piston when in use, so the piston does not rotate as much as possible, and the piston can be smoothly pushed out during parking, thereby achieving the parking effect. The existing anti-rotation structure of the piston is that anti-slip teeth are processed on the surface of the piston contacted with a friction plate, and the anti-rotation is realized by increasing the friction force between the piston and the friction plate.
The prior art scheme has the following defects: when the vehicle is parked, the pressure between the piston and the friction plate is small at the beginning stage of the pushing-out process of the piston, and then large friction force cannot be generated, and at the moment, the anti-skid effect of the existing scheme is poor; after the friction plate is used for a period of time, the rotation of the piston causes the noise reduction sheet of the friction plate to be greatly abraded due to incomplete rotation prevention, the noise reduction and heat insulation effects are affected, and the friction plate is quite unattractive.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide an EPB calliper piston anti-rotation structure.
The purpose of the utility model is accomplished through following technical scheme: the anti-rotation structure of the EPB caliper piston mainly comprises a piston, anti-skidding teeth, a friction plate back plate, a silencing piece, a boss and a groove, wherein the silencing piece is arranged on the upper surface of the friction plate back plate, the silencing piece is in contact with the anti-skidding teeth arranged on the surface of the piston to prevent the piston from rotating, the groove is formed in the contact surface of the piston and the silencing piece, the boss is arranged on the upper surface of the friction plate back plate corresponding to the groove, and the boss penetrates out of the silencing piece and is embedded into the groove to be positioned.
The utility model has the advantages that: the utility model effectively solves the problem of piston rotation when the friction force is insufficient at the beginning stage of parking, and improves the anti-rotation effect of the piston during parking without changing the existing structure of the piston; the friction between the piston and the silencing plate is reduced, and the performance reduction caused by the abrasion of the silencing plate is prevented.
Drawings
Fig. 1 is a schematic diagram of a piston structure in the prior art.
Fig. 2 is a structural axis measuring and indicating diagram of the present invention.
Fig. 3 is a front view of the structure of the present invention.
Fig. 4 is a structural top view of the present invention.
Fig. 5 is a sectional view a-a in fig. 4.
Fig. 6 is a structural diagram of the back plate and the silencing plate of the friction plate of the present invention.
Description of reference numerals: piston 1, antiskid tooth 2, friction disc backplate 3, amortization piece 4, boss 5, recess 6.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in the attached drawing, the EPB caliper piston anti-rotation structure mainly comprises a piston 1, anti-skidding teeth 2, a friction plate back plate 3, a silencing sheet 4, a boss 5 and a groove 6, wherein the silencing sheet 4 is installed on the upper surface of the friction plate back plate 3, the anti-skidding teeth 2 arranged on the surface of the silencing sheet 4 in contact with the piston 1 prevent the piston 1 from rotating, the groove 6 is arranged on the contact surface of the piston 1 and the silencing sheet 4, the boss 5 is arranged on the position, corresponding to the groove 6, of the upper surface of the friction plate back plate 3, the boss 5 penetrates out of the silencing sheet 4 and is embedded into the groove 6 for positioning, the piston is prevented from rotating when the friction force is insufficient in the parking starting stage, and the abrasion of the anti-skidding.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (1)
1. The utility model provides a EPB calliper piston rotation-proof structure which characterized in that: the piston mainly comprises a piston (1), anti-skidding teeth (2), a friction plate back plate (3), silencing pieces (4), a boss (5) and a groove (6), wherein the silencing pieces (4) are installed on the upper surface of the friction plate back plate (3), the piston (1) is prevented from rotating by the anti-skidding teeth (2) arranged on the surface of the silencing pieces (4) in contact with the piston (1), the groove (6) is formed in the contact surface of the piston (1) and the silencing pieces (4), the boss (5) is arranged on the upper surface of the friction plate back plate (3) corresponding to the position of the groove (6), and the boss (5) penetrates out of the silencing pieces (4) and is embedded into the groove (6) for positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920703396.4U CN210344085U (en) | 2019-05-16 | 2019-05-16 | EPB calliper piston rotation-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920703396.4U CN210344085U (en) | 2019-05-16 | 2019-05-16 | EPB calliper piston rotation-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210344085U true CN210344085U (en) | 2020-04-17 |
Family
ID=70182648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920703396.4U Active CN210344085U (en) | 2019-05-16 | 2019-05-16 | EPB calliper piston rotation-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210344085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798249A (en) * | 2020-12-30 | 2021-05-14 | 东风汽车集团有限公司 | Device and method for detecting friction performance of EPB caliper piston and friction plate |
-
2019
- 2019-05-16 CN CN201920703396.4U patent/CN210344085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798249A (en) * | 2020-12-30 | 2021-05-14 | 东风汽车集团有限公司 | Device and method for detecting friction performance of EPB caliper piston and friction plate |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Intelligent Manufacturing Co.,Ltd. Patentee after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Wanxiang System Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |