CN219827532U

CN219827532U - Anti-rotation piston structure of pure parking caliper assembly

Info

Publication number: CN219827532U
Application number: CN202320283788.6U
Authority: CN
Inventors: 胡凯; 黄林; 张水清; 罗红; 邱铁
Original assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Current assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-10-13
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses an anti-rotation piston structure of a pure parking caliper assembly. The anti-rotation piston is axially arranged in a cylinder hole of the clamp body, the limiting screw is arranged on the hole wall of the cylinder hole of the clamp body through threads, and mutually matched limiting structures are arranged on the limiting screw and the anti-rotation piston, so that the anti-rotation piston is prevented from rotating after the limiting screw threads are inserted into the cylinder hole of the clamp body; the limiting structure comprises a limiting boss and a groove, wherein the limiting boss is coaxially arranged at the tail end of the limiting screw, the groove is used as a limiting structure, and the limiting boss is inserted into a cylinder hole of the pliers body and then is embedded into the limiting structure of the anti-rotation piston to realize anti-rotation. The utility model has the advantages of simple structure, light weight and low cost, can effectively prevent the piston from rotating, and ensures the stability of the parking performance of the pure parking caliper assembly on the whole vehicle.

Description

Anti-rotation piston structure of pure parking caliper assembly

Technical Field

The utility model belongs to a structure of an electronic parking product in the field of automobile brakes, in particular relates to an anti-rotation piston structure of a pure parking caliper assembly, and mainly aims to solve the problem that a piston of the pure parking caliper assembly rotates under the condition of whole automobile parking.

Background

When the electronic parking product in the field of automobile brake assemblies executes the parking instruction of the whole automobile, the piston has a rotating problem under the action of an internal part of the piston, and the situation causes the unstable parking force of the pure parking caliper assembly, so that the parking performance is influenced, the risk of sliding is caused for the whole automobile, and the situation seriously influences the safety of the whole automobile. With the development of the automobile industry, the safety of the whole automobile is always kept in the first place. The parking function requirements for a pure parking caliper assembly are also increasing.

Disclosure of Invention

In order to improve and solve the problems in the background art and solve the problem that a piston rotates under the condition of large clamping force of a pure parking caliper, the utility model provides an anti-rotation piston structure of a pure parking caliper assembly and solves the problem that the piston rotates under the condition of whole vehicle parking of the caliper.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the anti-rotation piston is axially arranged in a cylinder hole of the pliers body, the limiting screw is arranged on the hole wall of the cylinder hole of the pliers body through threads, and the limiting screw and the anti-rotation piston are provided with mutually matched limiting structures, so that the anti-rotation piston is prevented from rotating after the limiting screw is inserted into the cylinder hole of the pliers body through threads.

The limiting structure comprises a limiting boss and a groove, wherein the limiting boss is coaxially arranged at the tail end of the limiting screw, the groove is used as a limiting structure, and the limiting boss is inserted into a cylinder hole of the clamp body and then is embedded into the limiting structure of the anti-rotation piston to realize anti-rotation.

The limiting structure is a strip-shaped groove which is arranged on the outer circumferential surface of the anti-rotation piston and along the axial direction of the anti-rotation piston.

The strip-shaped groove penetrates through the tail of the anti-rotation piston along the axial direction of the anti-rotation piston.

The limiting structure is manufactured in a machining mode.

The limit screw is made of metal materials.

The function of the utility model is realized by the interaction of the anti-rotation piston, the limiting structure, the limiting screw, the limiting boss and the clamp body.

According to the utility model, the end face of the tail end of the limit screw is axially processed with the limit boss, the cylindrical surface of the piston is processed with the limit structure, the limit screw is arranged on the clamp body through threads, and the limit boss of the limit screw is arranged in the piston limit structure to realize the anti-rotation function of the piston.

The beneficial effects of the utility model are as follows:

the utility model can solve the problem that the piston axially rotates when the electronic hand brake of the pure parking caliper assembly is pulled up, ensure the stability of the parking force of the product and meet the requirement of the parking safety of the whole vehicle.

The utility model has simple structure and is convenient for process molding. Compared with the traditional piston, the piston has light weight, meets the requirement of light weight and weight reduction, has simple assembly process and can improve the assembly efficiency and effectively save the cost.

Drawings

FIG. 1 is a schematic cross-sectional view of an assembled structure of the present utility model.

Fig. 2 is a schematic view of a stop screw of the present utility model.

Fig. 3 is a schematic view of the structural outline of the piston element of the present utility model.

In the figure: 1. a clamp body;

2. a limit screw;

3. an anti-rotation piston;

4. a limit boss;

5. and a limiting structure.

Detailed Description

The utility model is further described below with reference to the drawings and specific embodiments.

As shown in fig. 1, the anti-rotation device comprises a clamp body 1, a limit screw 2 and an anti-rotation piston 3, wherein the anti-rotation piston 3 is axially arranged in a cylinder hole of the clamp body 1, the limit screw 2 is arranged on the hole wall of the cylinder hole of the clamp body 1 through threads, and limit structures matched with each other are arranged on the limit screw 2 and the anti-rotation piston 3, so that the anti-rotation of the anti-rotation piston 3 is realized after the limit screw 2 is inserted into the cylinder hole of the clamp body 1 through threads.

As shown in fig. 2 and 3, the limiting structure comprises a limiting boss 4 and a groove, wherein the limiting boss 4 and the groove are coaxially arranged at the tail end of the limiting screw 2, the groove is used as a limiting structure 5, and the limiting boss 4 is inserted into a cylinder hole of the clamp body 1 and then is embedded into the limiting structure 5 of the anti-rotation piston 3 to realize anti-rotation.

The limiting structure 5 is a strip-shaped groove which is arranged on the outer circumferential surface of the anti-rotation piston 3 and along the axial direction of the anti-rotation piston 3.

The strip-shaped groove penetrates through the tail of the anti-rotation piston 3 along the axial direction of the anti-rotation piston 3.

In specific implementation, the limit structure 5 is manufactured by machining, and the limit screw 2 is made of metal materials.

Thus, the clamp body 1 and the limit screw 2 are matched through threads, and the limit boss 4 of the limit screw 2 is matched with the limit structure 5 of the anti-rotation piston 3 to realize the anti-rotation function.

During processing, an anti-rotation limiting structure is machined on the axial direction of the surface of the piston, a limiting groove has the precision requirement, and burrs on the periphery of the limiting groove need to be removed cleanly. The limiting mechanism has the axial length requirement, and the function of axial movement guiding of the anti-rotation piston is guaranteed. The limit boss of the limit screw extends into the limit structure of the anti-rotation piston, and the installation of the limit boss of the limit screw cannot influence the axial linear motion of the piston. The limit screw is arranged on the clamp body through threads. The clamp body is provided with a limiting structure to ensure the installation depth and the tightening torque of the limiting screw.

The specific implementation working process is that the anti-rotation piston 3 is assembled into a cylinder hole of the clamp body 1, the anti-rotation piston 3 is pressed to the bottom of the cylinder hole, a limit structure 5 of the anti-rotation piston 3 is aligned with a threaded hole on the clamp body, and a limit screw 2 is installed on the clamp body 1 and locked according to a specified moment.

From this, stop screw 2's spacing boss 4 stretches into with prevent changeing in the limit structure 5 of piston 3, guarantee that pure parking calliper assembly does not have pivoted problem in the piston under the parking condition, and then can guarantee the stability of pure parking calliper assembly parking performance.

The anti-rotation piston 4 is provided with a limiting structure 5 in a machining mode, and the limiting structure 5 is a penetrating structure from the axial direction of the anti-rotation piston to the tail of the piston. The anti-rotation function is realized by the fact that the limiting boss 4 of the limiting screw acts on the anti-rotation piston limiting structure 5, and meanwhile, the anti-rotation piston limiting mechanism and the limiting boss of the limiting screw can realize relative sliding axial linear motion.

Therefore, the utility model has the advantages of simple structure, light weight and low cost, can effectively prevent the piston from rotating, and ensures the stability of the parking performance of the pure parking caliper assembly on the whole vehicle.

Claims

1. The utility model provides a pure parking calliper assembly prevent changeing piston structure which characterized in that:

including the pincers body (1), stop screw (2) and prevent changeing piston (3), prevent changeing piston (3) axial dress is in pincers body (1) jar downthehole, and stop screw (2) are installed on the pore wall in pincers body (1) jar downthehole through the screw thread, are equipped with limit structure of mutually supporting on stop screw (2) and the prevent changeing piston (3) for prevent changeing piston (3) are realized preventing after stop screw (2) screw thread cartridge is in pincers body (1) jar downthehole.

2. The anti-rotation piston structure of a pure park caliper assembly of claim 1, wherein: the limiting structure comprises a limiting boss (4) and a groove, wherein the limiting boss (4) and the groove are coaxially arranged at the tail end of the limiting screw (2), the groove is used as a limiting structure (5), and the limiting boss (4) is inserted into a cylinder hole of the clamp body (1) and then is embedded into the limiting structure (5) of the anti-rotation piston (3) to realize anti-rotation.

3. The anti-rotation piston structure of a pure park caliper assembly of claim 2, wherein: the limiting structure (5) is a strip-shaped groove which is arranged on the outer circumferential surface of the anti-rotation piston (3) and along the axial direction of the anti-rotation piston (3).

4. A pure park caliper assembly anti-rotation piston structure as defined in claim 3, wherein: the strip-shaped groove penetrates through the tail of the anti-rotation piston (3) along the axial direction of the anti-rotation piston (3).

5. The anti-rotation piston structure of a pure park caliper assembly of claim 1, wherein: the limiting structure (5) is manufactured in a machining mode.

6. The anti-rotation piston structure of a pure park caliper assembly of claim 1, wherein: the limit screw (2) is made of a metal material.