CN217558851U

CN217558851U - Active return structure of fixed caliper friction block for automobile

Info

Publication number: CN217558851U
Application number: CN202221344756.4U
Authority: CN
Inventors: 王夫健; 冯登荣; 罗家韦
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-11
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to an automobile parts makes technical field, concretely relates to initiative return structure of fixed calliper clutch blocks for car, including installing the lower return subassembly on the pincers body, install two guide pins on the pincers body, the internal two clutch blocks assemblies that are equipped with of pincers, clutch blocks assembly slidable mounting is on two guide pins, lower return subassembly is including journal stirrup, the elastic component that is located clutch blocks assembly both ends middle part and the retaining member of wearing to establish in the journal stirrup, retaining member fixed mounting is at the inner wall of the pincers body, the elastic component is located between two clutch blocks assemblies, elastic component one end top is leaned on the journal stirrup, the other end is fixed on the retaining member. The purpose is as follows: the problem of the clutch pad top among the prior art break away from the brake disc earlier than the bottom, the clutch pad eccentric wear and the brake noise probably appear in the use is solved.

Description

Active return structure of fixed caliper friction block for automobile

Technical Field

The utility model relates to an automobile parts makes technical field, concretely relates to car is with initiative return structure of fixed calliper clutch blocks.

Background

The fixed calipers are also called opposite calipers, and when the brake is performed, the pistons on two sides of the brake disc simultaneously push the friction blocks on two sides to tightly press the brake disc. Compared with floating calipers, the area of the friction block of the fixed caliper is larger, the weight of the fixed caliper is heavier, and meanwhile, due to the structural limitation of the caliper body of the fixed caliper, an early product generally has no active return structure of the friction block and the dragging torque is far larger than that of the floating caliper with the same specification.

Along with the continuous tightening of the energy-saving requirement of automobiles, the fixed calipers have urgent dragging requirements, and the friction block active return structure is widely used as a direct and effective scheme at present, for example, CN202020606607.5 "a friction plate and return spring fixing mechanism of fixed calipers" utility model patent shows an active return structure. The structure can effectively realize the return of the friction block, but because of the structural limitation of the fixed caliper, the active return structure of the structure is applied to the windowing part of the arc top of the caliper, and the acting force of the return spring acts on the top of the back plate of the friction block.

However, the structure causes the top of the friction block to be separated from the brake disc before the bottom, and the problems of eccentric wear of the friction block, braking noise and the like can occur in the use process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an initiative return structure of fixed calliper clutch blocks for car for solve the clutch blocks top among the prior art and break away from the brake disc earlier than the bottom, the problem of clutch blocks eccentric wear and brake noise probably appears in the use.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides an initiative return structure of fixed calliper clutch blocks for car, is including installing the lower return subassembly on the pincers body, install two guide pins on the pincers body, the internal two clutch blocks assemblies that are equipped with of pincers, clutch blocks assembly slidable mounting is on two guide pins, lower return subassembly is including journal stirrup, the elastic component that is located clutch blocks assembly both ends middle part and the retaining member of wearing to establish in the journal stirrup, retaining member fixed mounting is at the inner wall of the pincers body, the elastic component is located between two clutch blocks assemblies, elastic component one end top is leaned on the journal stirrup, the other end is fixed on the retaining member.

According to the technical means, the friction block assembly is guided by the two guide pins, and the automatic resetting of the friction block assembly is powered by the lower return components positioned in the middle parts of the two ends of the friction block assembly, so that the problems that the top of the friction block is separated from the brake disc before the bottom of the friction block, and the friction block is eccentric and brake noise possibly occurs in the use process are solved.

Further, the retaining member is a fixing bolt, a threaded hole is formed in the inner wall of the clamp body, the fixing bolt penetrates through the support lug and is in threaded connection with the threaded hole, the elastic member is a compression spring, the compression spring is sleeved on the fixing bolt, one end of the compression spring abuts against the support lug, and the other end of the compression spring abuts against the head of the fixing bolt.

According to the technical means, the fixing bolt is used as the locking piece, the compression spring is used as the elastic piece, and the structure is simple and the installation is convenient.

Furthermore, a positioning boss is fixedly arranged on a screw rod of the fixing bolt.

According to the technical means, the assembling position of the fixing bolt is guaranteed, the friction material of the friction block assembly can normally work in the abrasion stroke, and the practicability is high.

Furthermore, a through hole is formed in the support lug, the fixing bolt penetrates through the through hole, and the diameter size of the positioning boss is smaller than the inner diameter size of the through hole.

According to the technical means, the friction block assembly can be prevented from being influenced by the fixing bolt in the stress and movement processes, and the practicability is high.

Furthermore, a positioning conical surface is integrally formed at one end, close to the screw, of the head of the fixing bolt, the compression spring is a conical spring, the small end of the conical spring abuts against the positioning conical surface, and the large end of the conical spring abuts against the support lug.

According to the technical means, the conical spring is positioned by mutually matching the positioning conical surface with the small end of the conical spring, so that the central axis of the conical spring and the central axis of the locking piece are kept in a coincident state, the assembly difficulty can be reduced, the balance of the elastic force for resetting the friction block assembly by the elastic piece is further enhanced, and the practicability is high.

Further, the friction block assembly comprises an overhead spring plate assembly mounted on the guide pin, wherein the overhead spring plate assembly comprises a mounting member and a plurality of return strips mounted on the mounting member and used for pressing the friction block assembly outwards.

According to the technical means, the friction block assembly can be separated from the brake disc under balanced stress by matching with the lower return assembly, the problem that the friction block assembly is asynchronous in return due to uneven stress is further avoided, and the practicability is high.

Further, the overhead spring plate assembly further comprises an extrusion member mounted on the mounting member, and the extrusion member comprises a lower pressing bar located on both sides of the mounting member and used for pressing the friction block assembly downwards.

According to the technical means, the lower pressing strip can form downward extrusion force on the friction block assembly, the friction block assembly is supported by the guide pin in a matched mode, the friction block assembly is positioned in the vertical direction, the problem that the friction block assembly cannot reset after jumping upwards due to the fact that the fixed calipers vibrate in the using process is solved, and the practicability is high.

The friction block assembly comprises a friction block assembly and a guide pin, wherein the friction block assembly comprises a friction block and a friction block, the friction block assembly is arranged on the friction block, the friction block is arranged on the friction block, and the friction block is arranged on the friction block.

The utility model has the advantages that:

1. the utility model utilizes two guide pins to guide the friction block assembly, and provides power for the automatic reset of the friction block assembly through the lower return components positioned in the middle parts of the two ends of the friction block assembly, thereby avoiding the problem that the top of the friction block is separated from the brake disc before the bottom, and the friction block is eccentric and the brake noise is possibly generated in the use process;

2. the utility model discloses a return strip cooperation lower return subassembly of overhead spring piece subassembly can make the clutch blocks assembly break away from the brake disc under balanced atress, avoids the asynchronous problem of return of clutch blocks assembly because of the uneven production of atress, and the practicality is stronger.

Drawings

Fig. 1 is a schematic structural view of an embodiment of an active return structure of a fixed caliper pad for an automobile according to the present invention;

FIG. 2 is a schematic structural view of an embodiment of an active return structure of a friction block of a fixed caliper for an automobile according to the present invention, after a caliper body is removed;

FIG. 3 is a schematic structural view of the top-mounted spring plate assembly according to an embodiment of the active return structure of the fixed caliper pad for an automobile of the present invention;

FIG. 4 is a schematic structural view of a locking member portion of an embodiment of an active return structure of a friction block of a fixed caliper for an automobile according to the present invention;

the main element symbols are as follows:

a clamp body 1,

An overhead spring plate assembly 2, a mounting member 21, a return strip 221, a lower pressing strip 222,

The friction block assembly 3, a support lug 31, a locking piece 32, a positioning boss 321, a positioning conical surface 322, an elastic piece 33,

A guide pin 4.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings and preferred embodiments, and other advantages and effects of the invention will be easily understood by those skilled in the art from the disclosure in the specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

The embodiment provides an initiative return structure of fixed calliper clutch blocks for car, including installing the lower return subassembly on the pincers body 1, install two guide pins 4 on the pincers body 1, be equipped with two clutch blocks assemblies 3 in the pincers body 1, 3 slidable mounting of clutch blocks assemblies are on two guide pins 4, lower return subassembly is including the journal stirrup 31 that is located 3 both ends middle parts of clutch blocks assembly, elastic component 33 and the retaining member 32 of wearing to establish in journal stirrup 31, retaining member 32 fixed mounting is at the inner wall of pincers body 1, elastic component 33 is located between two clutch blocks assemblies 3, elastic component 33 one end top is leaned on journal stirrup 31, the other end is fixed on retaining member 32.

In this embodiment, during braking, the friction block assemblies 3 on both sides of the brake disc are pressed onto the brake disc by the piston to complete braking, and in this process, the return strips 221 and the elastic members 33 are pressed and deformed;

after braking is finished, the elastic pieces 33 positioned in the middle parts of the two ends of the friction block assembly 3 reset to push the friction block assembly 3 to be separated from the brake disc.

In this embodiment, for the installation is more convenient, retaining member 32 is fixing bolt, and the threaded hole is seted up to the inner wall of pincers body 1, and fixing bolt wears to establish in journal stirrup 31 and the spiro union is in the threaded hole, and elastic component 33 is compression spring, and the compression spring cover is established on fixing bolt, and compression spring one end top is leaned on journal stirrup 31, and the other end top is leaned on fixing bolt's head.

In this embodiment, in order to ensure the assembling position of the fixing bolt and ensure that the friction material of the friction block assembly 3 can work normally in the abrasion stroke, the screw of the fixing bolt is fixedly provided with the positioning boss 321.

In this embodiment, in order to ensure that the friction block assembly 3 does not affect the fixing bolt during the stress and movement processes, the through hole is formed in the support lug 31, the fixing bolt penetrates through the through hole, and the diameter of the positioning boss 321 is smaller than the inner diameter of the through hole.

In this embodiment, in order to mutually support through positioning conical surface 322 and conical spring's tip, accomplish the location to conical spring, make conical spring's axis and retaining member 32 the axis keep the coincidence state, when reducing the assembly degree of difficulty, further strengthen the equilibrium of the elasticity that elastic component 33 carries out the elasticity that resets to clutch blocks assembly 3, the one end integrated into one piece that fixing bolt's head is close to the screw rod has positioning conical surface 322, compression spring is conical spring, conical spring's tip top leans on positioning conical surface 322, conical spring's main aspects top leans on the journal stirrup.

In this embodiment, in order to cooperate with the lower return assembly, the friction block assembly 3 may be disengaged from the brake disc under balanced stress, and further, the problem of asynchronous return caused by uneven stress on the friction block assembly 3 is avoided, and the brake disc further includes an overhead spring assembly 2 mounted on the guide pin 4, where the overhead spring assembly 2 includes a mounting part 21 and a plurality of return strips 221 mounted on the mounting part 21 and used for pressing the friction block assembly 3 outwards, and the number of the return strips 221 is preferably four.

In this embodiment, in order to form the power of extrudeing downwards to the clutch block assembly 3 through holding down strip 222, cooperation guide pin 4 supports clutch block assembly 3, accomplish the location to clutch block assembly 3 on vertical direction, and then avoid the vibration that fixed calliper produced in the use, and lead to the clutch block assembly 3 upwards to beat the back, the problem that can't reset, overhead spring leaf subassembly 2 still includes the extruded piece of installing on installed part 21, the extruded piece is including being located installed part 21 both sides, be used for the lower holding down strip 222 of the extrusion of clutch block assembly 3 downwards.

In this embodiment, in order to form the force of pushing downwards to the friction block assembly 3 through the hold-down strip 222, the friction block assembly 3 is supported by the guide pin 4, the positioning of the friction block assembly 3 in the vertical direction is completed, and further the problem that the friction block assembly 3 cannot reset after jumping upwards due to the vibration generated by the fixed caliper in the use process is avoided, and the overhead spring assembly 2 mounted on the guide pin 4 is further included, the overhead spring assembly 2 includes a mounting part 21 and an extrusion part mounted on the mounting part 21, and the extrusion part includes the hold-down strip 222 located on both sides of the mounting part 21 and used for extruding the friction block assembly 3 downwards.

The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitution or transformation made by the technical personnel in the technical field on the basis of the utility model is within the protection scope of the utility model.

Claims

1. The utility model provides an active return structure of fixed calliper clutch blocks for car which characterized in that: including installing the lower return subassembly on the pincers body (1), install two guide pins (4) on the pincers body (1), be equipped with two clutch blocks assembly (3) in the pincers body (1), clutch blocks assembly (3) slidable mounting is on two guide pins (4), lower return subassembly is including journal stirrup (31), elastic component (33) and the retaining member (32) of wearing to establish in journal stirrup (31) that are located clutch blocks assembly (3) both ends middle part, retaining member (32) fixed mounting is in the inner wall of the pincers body (1), elastic component (33) are located between two clutch blocks assembly (3), elastic component (33) one end top is leaned on journal stirrup (31), the other end is fixed on retaining member (32).

2. The active return structure of a fixed caliper pad for an automobile according to claim 1, wherein: retaining member (32) are fixing bolt, the threaded hole is seted up to the inner wall of the pincers body (1), fixing bolt wears to establish in journal stirrup (31) and the spiro union is downthehole at the thread, elastic component (33) are compression spring, compression spring cover is established on fixing bolt, compression spring one end top is leaned on journal stirrup (31), the other end top is leaned on fixing bolt's head.

3. The active return structure of a fixed caliper pad for automobiles according to claim 2, wherein: and a positioning boss (321) is fixedly arranged on the screw rod of the fixing bolt.

4. The active return structure of a fixed caliper pad for automobiles according to claim 3, characterized in that: the support lug (31) is provided with a through hole, the fixing bolt penetrates through the through hole, and the diameter of the positioning boss (321) is smaller than the inner diameter of the through hole.

5. The active return structure of a fixed caliper pad for automobiles according to claim 2, wherein: the head of the fixing bolt is provided with a positioning conical surface (322) in an integrated manner at one end close to the screw rod, the compression spring is a conical spring, the small end of the conical spring abuts against the positioning conical surface (322), and the large end of the conical spring abuts against the support lug.

6. The active return structure of a fixed caliper pad for automobiles according to claim 1, wherein: the friction block assembly is characterized by further comprising an overhead spring piece assembly (2) arranged on the guide pin (4), wherein the overhead spring piece assembly (2) comprises a mounting piece (21) and a plurality of return strips (221) which are arranged on the mounting piece (21) and used for pressing the friction block assembly (3) outwards.

7. The active return structure of a fixed caliper pad for automobiles according to claim 6, characterized in that: the overhead spring plate assembly (2) further comprises an extruding member arranged on the mounting member (21), and the extruding member comprises lower pressing strips (222) which are positioned on two sides of the mounting member (21) and are used for extruding the friction block assembly (3) downwards.

8. The active return structure of a fixed caliper pad for an automobile according to claim 1, wherein: the spring piece assembly is characterized by further comprising an overhead spring piece assembly (2) installed on the guide pin (4), wherein the overhead spring piece assembly (2) comprises an installation part (21) and extrusion parts installed on the installation part (21), and the extrusion parts comprise lower pressing strips (222) located on two sides of the installation part (21) and used for downwards extruding the friction block assembly (3).