CN217633581U

CN217633581U - Reed for return of brake block

Info

Publication number: CN217633581U
Application number: CN202220720361.3U
Authority: CN
Inventors: 周哉松; 顾航斌; 王金晶
Original assignee: Zhejiang Wanan Zhiyu Automobile Control System Co ltd
Current assignee: Zhejiang Wanan Zhiyu Automobile Control System Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-10-21
Anticipated expiration: 2032-03-29

Abstract

The utility model relates to the field of brakes and discloses a reed for returning a brake block, which comprises a reed supporting main body and a returning part for abutting against the brake block, wherein the returning part and the supporting main body are of an integral structure formed by bending a reed with elastic returning capacity; the return part comprises a contact part matched with the clamp body supporting rod and the brake block and a bent part connecting the contact part and the supporting main body; the conflict portion is including can the cladding portion of cladding on the bracing piece, and axial tip of cladding portion is contradicted on the brake block, and the cladding portion has the arc mouth, and cladding portion accessible arc mouth is contradicted on the bracing piece with the bracing piece cooperation, and the cladding portion can take place elastic deformation under the exogenic action. The return spring has the advantages of reliable return, stable support, long service life and the like.

Description

Reed for return of brake block

Technical Field

The utility model relates to a fixed calliper field has especially related to a reed for brake pads return.

Background

Chinese patent CN201822061345.4 discloses a friction plate return spring. The friction plate return spring relatively increases the elastic deformation range of the elastic arm, and the 'preloading force' of the elastic arm on the friction plate can be reduced along with the abrasion of the friction plate and the increase of the normal elastic reaction force. The utility model discloses an adopt the elastic arm that is connected, extension arm and connection structure's structural design for friction disc return spring can be folded with predetermined load elasticity, and the elastic deformation scope of this elasticity portion can change by oneself during the wear life of friction disc, can prevent the rattling and the power change of friction disc.

However, the return spring body with the structure has the advantages that the installation space is small, the number of structural bending points is large, the requirement on the manufacturing precision is high, meanwhile, after the brake pad is abraded, the brake pad moves towards the direction of a brake disc, and due to the fact that the supporting points of the spring leaf structures with the structure and the traditional structure are small, the phenomenon that the spring force is declined easily occurs in durability use, the later return speed of the brake caliper is reduced, and abnormal sound and the like occur when the brake is released.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a reed for brake block return comprises a reed supporting main body and a return part for abutting against a brake block, wherein the return part and the supporting main body are of an integrated structure formed by bending a reed with elastic return capacity; the return part comprises a connecting part connected with the supporting main body, an abutting part matched with the clamp body supporting rod and the brake block and a bending part connecting the abutting part and the connecting part; the conflict portion is including can the cladding portion of cladding on the bracing piece, and axial tip of cladding portion is contradicted on the brake block, and the cladding portion has the arc mouth, and cladding portion accessible arc mouth is contradicted on the bracing piece with the bracing piece cooperation, and the cladding portion can take place elastic deformation under the exogenic action.

Preferably, the number of the returning portions is four, and the four returning portions are provided at four corners of the support main body, and the four returning portions are provided in an "X" shape.

Preferably, the arcuate mouth of the covering portion faces the socket side.

Preferably, the middle of the support main body is provided with a radially extending lightening groove, at least one end of the two ends of the lightening groove forms an installation piece through a flanging, the orientation of the installation piece is opposite to the orientation of the arc-shaped opening, and the installation piece is perpendicular to the support main body.

Preferably, the bending portion includes a first bending piece connected to the support body, a second bending piece at the middle portion, and a third bending piece connected to the returning portion.

Preferably, in this aspect, the first bending piece extends in a direction toward the jaw side, the second bending piece is disposed parallel to the support body, and the third bending piece extends in a direction toward the back side.

Preferably, the included angle between the first bending piece and the supporting body is an obtuse angle, and the included angle between the second bending piece and the third bending piece is an obtuse angle.

Preferably, the other axial end of the covering part is an inclined surface, the inclined opening of the inclined surface faces the direction of the surface where the brake block abuts against the covering part, and the inclined surface and the side surface of the bent part are in arc transition.

Preferably, the third bending piece and the cladding portion are in arc transition, and the cladding portion includes an inner section connected with the third bending piece and an outer section which extends towards the brake pad direction and is not connected with the third bending piece.

Through the technical scheme, the utility model discloses following technological effect has:

the support reed of this scheme design is through bending an integrated into one piece, and the conflict structure of design simultaneously is great, and stability is good, can match with the bracing piece simultaneously, so the brake pads can not take place to rock noiselessness when axial motion. And this kind U type structure can just can provide reliable resilience force at the overall process of deformation, long service life.

Drawings

Fig. 1 is a schematic view of the overall structure of the device.

Fig. 2 is an enlarged view of fig. 1.

Fig. 3 is a schematic view of the structure of the brake.

The reference symbols in the figures are the following technical names:

100-supporting main body, 101-return part, 102-supporting rod, 103-brake block, 104-interference part, 105-bending part, 106-cladding part, 107-arc opening, 108-lightening groove, 109-mounting piece, 110-first bending piece, 111-second bending piece, 112-third bending piece, 113-back clamping side, 114-jaw side, 115-inner section and 116-outer section.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

A reed for the return of a brake block 103 comprises a reed supporting main body 100 and a return part 101 which is used for abutting against the brake block 103, wherein the return part 101 and the supporting main body 100 are of an integral structure formed by bending a reed with elastic return capacity; the returning part 101 comprises an interference part 104 matched with the clamp body supporting rod 102 and the brake block 103 and a bending part 105 connecting the interference part 104 and the supporting body 100; the contact part 104 comprises a coating part 106 capable of coating the support rod 102, one axial end part of the coating part 106 is contacted with the brake block 103, the coating part 106 is provided with an arc-shaped opening 107, the coating part 106 can be matched with the support rod 102 through the arc-shaped opening 107 to be contacted with the support rod 102, and the coating part 106 can elastically deform under the action of external force. In this embodiment, the support body 100 extends in a radial direction of the brake shoe 103 when being installed, wherein the support body 100 is located between the inner brake shoe 103 and the outer brake shoe 103, and the support body 100 and the inner brake shoe 103 and the outer brake shoe 103 are disposed substantially vertically. The overall shape of the wrapping portion 106 is a semicircular spring, and the semicircular spring in this embodiment does not require 180 degrees, and only needs to be matched with the supporting rod 102 for supporting.

The wrapping part 106 plays a role of wrapping and supporting on one hand, and on the other hand, because the wrapping part is made of a reed material, the wrapping part 106 and the bending part 105 can be stressed to generate elastic deformation, and in the scheme, the wrapping part 106 and the bending part 105 provide functions of accumulating elastic potential energy and releasing the elastic potential energy for the reed.

In order to stably support the inner brake pad 103 and the outer brake pad 103, the number of the return portions 101 is four, and the four return portions 101 are provided at four corners of the support body 100, and are mutually provided in an "X" shape. That is, the inner brake pad 103 and the outer brake pad 103 are provided with two return portions 101, which act on both ends of the brake pad 103 in the radial direction of the caliper back side 113.

In this embodiment, the arcuate opening 107 of the wrapping portion 106 faces the panel opening side. The middle of the support main body 100 is provided with a radially extending lightening groove 108, at least one end of the two ends of the lightening groove 108 forms an installation sheet 109 through flanging, the orientation of the installation sheet 109 is opposite to that of the arc-shaped opening 107, and the installation sheet 109 is arranged perpendicular to the support main body 100. The mounting piece 109 and the clamp body are matched to realize the function of mounting the reed, and the combined structure of the mounting piece 109 and the coating part 106 can realize the positioning of the reed in the axial direction, the radial direction and the inner and outer directions.

The bending portion 105 of the present embodiment includes a first bending piece 110 connected to the supporting body 100, a middle second bending piece 111, and a third bending piece 112 connected to the returning portion 101. The bending portion 105 formed by the first bending plate 110, the second bending plate 111 and the third bending plate 112 is substantially S-shaped.

In this embodiment, the extending direction of the first bending piece 110 is toward the jaw side 114, the second bending piece 111 is parallel to the supporting main body 100, the extending direction of the third bending piece 112 is toward the jaw side 113, the included angle between the first bending piece 110 and the supporting main body 100 is an obtuse angle, and the included angle between the second bending piece 111 and the third bending piece 112 is an obtuse angle.

In this embodiment, the other axial end of the covering portion 106 is an inclined surface, the inclined opening of the inclined surface faces the direction of the surface of the brake block 103 against which the covering portion 106 abuts, and the inclined surface and the side surface of the edge portion of the bending portion 105 are in arc transition. The third bending plate 112 and the cladding 106 are in arc transition, and the cladding 106 includes an inner segment 115 connected to the third bending plate 112, and an outer segment 116 extending from the inner segment 115 toward the brake pad 103 and not connected to the third bending plate 112. The outer section 116 is deformable by an external force but does not come out of contact with the brake pad 103. The support reed of this scheme design is through buckling integrated into one piece, and the conflict structure of design simultaneously is great, and stability is good, can match with bracing piece 102 simultaneously, so brake block 103 can not take place to rock noiselessness when axial motion. And this kind of U type structure can just can provide reliable resilience force at the overall process of deformation, long service life.

The working process is as follows:

the four arc-shaped openings 107 fixed on the back of the caliper 113 and the return portion 101 of the mounting plate 109 are abutted against the two ends of the supporting rod 102, and the abutting portion 104 is abutted against the brake block 103, so that a small acting force is preset, and the brake block 103 is prevented from shaking.

When the brake is applied, the brake block 103 pushes the brake disc under the action of the piston, the brake block 103 simultaneously applies acting force to the end of the return part 101, the contact part of the return part 101 receives force in the direction away from the support rod 102 under the action of external force, the return part 101 generates certain deformation, the deformation trend is towards the back side 113, therefore, the axial direction of the return part 101 deflects, the return part 101 accumulates elastic potential energy, and when the brake is released, the return part 101 returns to the original shape to release the elastic potential energy. The brake shoe 103 is returned.

After the brake pad is used for a period of time, along with abrasion of the friction pad and the brake disc in the use process of a product, the piston extends out of a part in order to reduce a brake gap caused by abrasion of the friction pad, the initial state of the return end is further compressed, the spring force is increased to just compensate for attenuation of the spring force in the durable use process, and meanwhile, the bending part 105 can compensate for subsequent brake return force. The service life is longer.

Example 2

This embodiment is different from embodiment 1 in that: the number of the mounting pieces 109 is 2 and is respectively positioned at two ends of the lightening hole.

Example 3

This embodiment is different from embodiment 1 in that: the mounting tab 109 is an L-shaped structure.

Claims

1. A spring for return of a brake pad, comprising: the spring piece support comprises a spring piece support main body (100) and a return part (101) which is used for abutting against a brake block (103), wherein the return part (101) and the support main body (100) are of an integral structure formed by bending a spring piece with elastic return capacity; the return part (101) comprises an interference part (104) matched with the clamp body supporting rod (102) and the brake block (103) and a bending part (105) connecting the interference part (104) and the supporting main body (100); the contact part (104) comprises a coating part (106) capable of coating the supporting rod (102), one axial end part of the coating part (106) is contacted with the brake block (103), the coating part (106) is provided with an arc-shaped opening (107), the coating part (106) can be matched with the supporting rod (102) to be contacted with the supporting rod (102) through the arc-shaped opening (107), and the coating part (106) can elastically deform under the action of external force.

2. A spring for brake pad return according to claim 1, wherein: the number of the returning parts (101) is four, the four returning parts are arranged at four corners of the supporting body (100), and the four returning parts (101) are mutually arranged in an X shape.

3. A spring for brake pad return according to claim 2, wherein: the arc-shaped opening (107) of the covering part (106) faces the rabbet side.

4. A spring for brake pad return according to claim 1, wherein: the middle of the support main body (100) is provided with a radially extending weight reduction groove (108), at least one end of the two ends of the weight reduction groove (108) forms an installation piece (109) through a flanging, the orientation of the installation piece (109) is opposite to the orientation of the arc-shaped opening (107), and the installation piece (109) is perpendicular to the support main body (100).

5. A spring for brake pad return according to claim 2, wherein: the bending part (105) comprises a first bending sheet (110) connected with the supporting main body (100), a second bending sheet (111) at the middle part and a third bending sheet (112) connected with the returning part (101).

6. A spring for brake pad return according to claim 5, wherein: the first bending piece (110) extends toward the jaw side (114), the second bending piece (111) is disposed parallel to the support body (100), and the third bending piece (112) extends toward the jaw side (113).

7. A spring for return of a brake pad as claimed in claim 6, wherein: the included angle between the first bending piece (110) and the supporting body (100) is an obtuse angle, and the included angle between the second bending piece (111) and the third bending piece (112) is an obtuse angle.

8. A spring for return of a brake pad as claimed in claim 1, wherein: the end face of the other axial end of the covering part (106) is an inclined face, an inclined opening of the inclined face faces the direction of the face, where the brake block (103) is abutted against by the covering part (106), and the side face of the inclined face and the side face of the bent part (105) is in arc transition.

9. A spring for brake pad return according to claim 3, wherein: the third bending piece (112) and the cladding part (106) are in arc transition, and the cladding part (106) comprises an inner section (115) connected with the third bending piece (112) and an outer section (116) which extends towards the brake block (103) from the inner section (115) and is not connected with the third bending piece (112).