CN220204491U

CN220204491U - Air pressure disc brake with error-proof design

Info

Publication number: CN220204491U
Application number: CN202321965349.XU
Authority: CN
Inventors: 张同先; 王朝阳; 周旭琦
Original assignee: Jiangsu Kehua Chassis Technology Co ltd
Current assignee: Jiangsu Kehua Chassis Technology Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2023-12-19
Anticipated expiration: 2033-07-25

Abstract

The utility model relates to a pneumatic disc brake with an error-proof design, which comprises a caliper body, wherein a cavity is formed in the caliper body, and brake linings are respectively arranged on the front side and the rear side of the cavity; the upper end part of the friction ring of the brake disc extends into the cavity and is positioned between the friction blocks of the two brake linings; the pressing plate is positioned at the upper end of the cavity, the two ends of the pressing plate are respectively connected with the caliper body, and the pressing plate is suitable for pressing the upper ends of the two brake linings in the cavity; the lower end of the pressing plate is provided with an error-proofing piece for limiting the reverse installation of the brake lining; the error-proofing member is positioned right above the friction ring, the front end face and the rear end face of the error-proofing member respectively extend to the upper areas of the front friction block and the rear friction block, and the lower end face of the error-proofing member is lower than the back plate of the brake lining. The air pressure disc brake with the error-proof design ensures the correct assembly of the brake lining and does not influence the normal use of the product.

Description

Air pressure disc brake with error-proof design

Technical Field

The utility model relates to the field of automobile brakes, in particular to a pneumatic disc brake with an error-proof design.

Background

When a vehicle is braked, a braking torque is generated by the tightening of a brake lining and a brake disc in a disc brake, so that the vehicle is decelerated or stopped, and a brake lining friction block is consumed in friction with the brake disc rotating at a high speed. Improper handling during assembly or replacement of the brake lining presents a risk of reverse installation of the brake lining, i.e. the back plate of the brake lining is in contact with the brake disc, and during braking, the back plate and the brake disc rub against each other, causing strain to the back plate and the brake disc, and eventually leading to high temperature to damage of the rim brake system.

To avoid this risk, a mistake proofing design of the brake lining installation process is required, which is an important issue to be addressed by the present patent application.

Disclosure of Invention

The utility model aims to solve the technical problems that: the air pressure disc brake with the error-proof design solves the problem that the existing air pressure disc brake has no error-proof device for mounting the brake lining, and the disc brake is improperly operated when the brake lining is replaced, so that the brake lining is reversely mounted.

The technical scheme adopted for solving the technical problems is as follows: the pneumatic disc brake with the error-proof design comprises a caliper body, wherein a cavity is formed in the caliper body, and brake linings are respectively arranged on the front side and the rear side of the cavity; the upper end part of the friction ring of the brake disc extends into the cavity and is positioned between the friction blocks of the two brake linings; the pressing plate is positioned at the upper end of the cavity, the two ends of the pressing plate are respectively connected with the caliper body, and the pressing plate is suitable for pressing the upper ends of the two brake linings in the cavity; the lower end of the pressing plate is provided with an error-proofing piece for limiting the reverse installation of the brake lining; the error-proofing member is positioned right above the friction ring, the front end face and the rear end face of the error-proofing member respectively extend to the upper areas of the front friction block and the rear friction block, and the lower end face of the error-proofing member is lower than the back plate of the brake lining.

Further, the error proofing parts are two error proofing blocks; the front side error-proofing block is positioned right above the front side of the friction ring, the front end surface of the front side error-proofing block extends to the area above the front side friction block, and the lower end surface of the front side error-proofing block is lower than the front side backboard; the rear error-proofing block is positioned right above the rear side of the friction ring, the rear end face of the rear error-proofing block extends to an area above the rear friction block, and the lower end face of the rear error-proofing block is lower than the rear backboard.

Further, the error-proofing block is of an L-shaped structure.

The beneficial effects of the utility model are as follows: according to the air pressure disc brake with the error-proofing design, the error-proofing piece is additionally arranged at the lower end of the pressing plate, so that the error-proofing piece can interfere with the back plate of the brake lining when the condition of reversely mounting the brake lining occurs, and the brake lining in reverse mounting cannot be mounted in the cavity of the caliper body.

The air pressure disc brake with the error-proof design ensures the correct assembly of the brake lining and does not influence the normal use of the product.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a front view of a gas disc brake with error proofing design of the present utility model;

FIG. 2 is a top view of the air disc brake with error proofing design of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of a pressure plate for use in the pneumatic disc brake of the present utility model;

FIG. 6 is a schematic illustration of the error proofing member positioned directly above the friction ring;

fig. 7 is an enlarged view of fig. 6 at C;

FIG. 8 is a schematic view of a conventional platen;

wherein, 1, the caliper body, 2, the brake disc, 21 and the friction ring; 3. a pressing plate 31 and an error-proofing block; 4. brake lining, 41, friction block, 42, backplate.

Description of the embodiments

The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present utility model by way of illustration only, and thus show only the constitution related to the present utility model.

As shown in fig. 1 to 7, an air pressure disc brake with an error-proofing design comprises a caliper body 1, wherein the caliper body 1 is of an arc-shaped structure as a whole, a cavity is formed in the caliper body 1, and brake linings 4 are respectively arranged on the front side and the rear side of the cavity; a brake disc 2, the upper end of the friction ring 21 of the brake disc 2 extends into the chamber and is positioned between the friction blocks 41 of the two brake linings 4; the pressing plate 3 is positioned at the upper end of the cavity, two ends of the pressing plate are respectively connected with the caliper body 1, and the pressing plate 3 is suitable for pressing the upper ends of two brake linings 4 in the cavity; the lower end of the pressing plate 3 is provided with an error-proofing piece for limiting the reverse installation of the brake lining 4; the error preventing member is located directly above the friction ring 21, and its front and rear end faces extend to the upper regions of the front and rear friction blocks 41, respectively, and its lower end face is lower than the back plate 42 of the brake lining 4.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 4 and fig. 5, the error-proofing parts are two error-proofing blocks 31; the front side error-proofing block 31 is positioned right above the front side of the friction ring 21, the front end surface of the front side error-proofing block 31 extends to the area above the front side friction block 41, and the lower end surface of the front side error-proofing block 31 is lower than the front side backboard 42; the rear error-proofing block 31 is located right above the rear side of the friction ring 21, the rear end face of the rear error-proofing block 31 extends to the area above the rear friction block 41, and the lower end face of the rear error-proofing block 31 is lower than the rear backboard 42.

The shape of the error-proofing block 31 may be rectangular, positive-directional, inverted T-shaped, L-shaped, etc., for which use may be selected according to the actual situation.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 4 and fig. 5, the error-proofing block 31 has an L-shaped structure.

The error-proofing block 31 is designed into an L-shaped structure, so that the structure of the error-proofing block 31 is more simplified, and the processing and the manufacturing are convenient.

In this embodiment, there may be two forms of the error preventing member, the first form is the two error preventing blocks 31 described in the above embodiment, and the second form is that the error preventing member may be one integral piece, that is, one integral bump, through both ends of which the error preventing is performed on the brake lining 4.

In this embodiment, there are three requirements on the position of the error-preventing block 31, the first point is that the error-preventing block 31 is located directly above the friction ring 21 of the brake disc 2, that is, as shown in fig. 6 and fig. 7, fig. 6 is an axial side view of the brake disc 2, and is used for showing that the pressing plate 3 is located directly above the friction ring 21 with the error-preventing block 31; the second point is that the end of the anti-mistake block 31 extends to the area above the friction block 41, which can be seen in fig. 4, and the third point is that the lower end surface of the anti-mistake block 31 is lower than the back plate 42 of the brake lining 4, which can be seen in fig. 4.

Fig. 8 is a structure of a conventional pressure plate 3, and it can be seen that the conventional pressure plate does not have an error-proof block, and thus, a conventional air pressure disc brake lacks a function of error-proofing a brake lining 4 by the pressure plate.

According to the air pressure disc brake with the error-proofing design, the error-proofing piece is additionally arranged at the lower end of the pressing plate 3, so that when the condition that the brake lining 4 is reversely installed, the error-proofing piece can interfere with the back plate 42 of the brake lining 4, and the brake lining 4 in the reverse installation cannot be installed in the cavity of the caliper body 1.

The air pressure disc brake with the error-proof design ensures that the brake lining 4 is assembled correctly, and meanwhile, the normal use of the product is not affected.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The pneumatic disc brake with the error-proof design is characterized by comprising a caliper body, wherein a cavity is formed in the caliper body, and brake linings are respectively arranged on the front side and the rear side of the cavity; the upper end part of the friction ring of the brake disc extends into the cavity and is positioned between the friction blocks of the two brake linings; the pressing plate is positioned at the upper end of the cavity, the two ends of the pressing plate are respectively connected with the caliper body, and the pressing plate is suitable for pressing the upper ends of the two brake linings in the cavity; the lower end of the pressing plate is provided with an error-proofing piece for limiting the reverse installation of the brake lining; the error-proofing member is positioned right above the friction ring, the front end face and the rear end face of the error-proofing member respectively extend to the upper areas of the front friction block and the rear friction block, and the lower end face of the error-proofing member is lower than the back plate of the brake lining.

2. The air pressure disc brake with error proofing design according to claim 1, wherein the error proofing members are two error proofing blocks; the front side error-proofing block is positioned right above the front side of the friction ring, the front end surface of the front side error-proofing block extends to the area above the front side friction block, and the lower end surface of the front side error-proofing block is lower than the front side backboard; the rear error-proofing block is positioned right above the rear side of the friction ring, the rear end face of the rear error-proofing block extends to an area above the rear friction block, and the lower end face of the rear error-proofing block is lower than the rear backboard.

3. The air pressure disc brake with error proofing design according to claim 2, wherein the error proofing block is of L-shaped configuration.