CN218935107U

CN218935107U - Automatic brake adjusting arm for passenger car

Info

Publication number: CN218935107U
Application number: CN202223349869.6U
Authority: CN
Inventors: 周兴国; 沈锋; 王卫庆; 徐纪芳; 何炫彬; 周显珂
Original assignee: Shaoxing Fangjie Auto Accessory Co ltd
Current assignee: Shaoxing Fangjie Auto Accessory Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-04-28
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses an automatic brake adjusting arm for a passenger car, which comprises an adjusting arm main body, a turbine and a control arm, wherein the turbine is arranged in the adjusting arm main body, one side of the adjusting arm main body is fixedly connected with the control arm, one side of the adjusting arm main body is provided with an adjusting pin, one end of the adjusting arm main body is provided with a control supporting structure, the other end of the adjusting arm main body is provided with a dustproof structure, a limiting groove is fixedly connected with the other side of the adjusting arm main body, and one side of the inner part of the control arm is provided with a connecting wear-resistant structure. According to the utility model, the dustproof structure is arranged, so that the influence of dust and dust is avoided, the other end of the adjusting arm main body is fixedly connected with the limiting groove, the rubber cover can be clamped into the inner side of the limiting groove through the rubber supporting ring, the outer side of the turbine is covered by the rubber cover, the external dust and dust cannot be adsorbed on the inner side of the turbine in a large amount, the turbine is prevented from driving the cam shaft to generate a clamping phenomenon, and the dust prevention of the turbine is realized.

Description

Automatic brake adjusting arm for passenger car

Technical Field

The utility model relates to the technical field of brake automatic adjusting arms, in particular to a brake automatic adjusting arm for a passenger car.

Background

A certain gap can be formed between a brake pad and a brake hub in the braking process of a passenger car, potential safety hazards easily occur in the driving process of the passenger car due to the gap, and corresponding automatic brake adjusting arms are arranged at the positions of the brake drum and the brake pad to avoid the potential hazards of accidents, so that the automatic brake adjusting arms can drive a cam shaft to adjust the gap between the brake pad and the brake drum to a proper initial state.

For this reason, a brake clearance automatic adjustment arm is disclosed in the patent specification of publication No. CN205937599U, and includes casing, worm, thrust washer, end face bearing and can rotate relative to the casing control arm, worm, thrust washer, end face bearing all set up in the casing, the thrust washer sets up between worm and end face bearing, adopt the line contact between tip and the thrust washer of worm. The automatic adjusting arm for the brake clearance changes the design of the end part of the worm and the thrust washer from the original conical surface contact fit (surface contact) to the linear contact, thereby reducing the friction force and facilitating the installation of clients. The automatic adjusting arm for the brake clearance has a good adjusting effect when in use, but has some problems:

1. in the long-time driving use process of the passenger car, soil and smoke dust raised on the ground are easy to mix inside the turbine, so that the phenomenon of blocking easily occurs in the gap adjustment process.

2. When the automatic brake clearance adjusting arm is used, the control arm is frequently pulled to easily generate deflection deformation.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a brake automatic adjusting arm for a passenger car, which is used for solving the defect that the existing brake gap automatic adjusting arm is easy to mix dust and foreign matters into the inner side of a turbine due to long-time running of the passenger car.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a brake automatic adjustment arm for passenger train, includes adjustment arm main part, turbine and control arm, the internally mounted of adjustment arm main part has the turbine, one side fixedly connected with control arm of adjustment arm main part, one side of adjustment arm main part inside is provided with the adjusting pin, control bearing structure is installed to the one end of adjustment arm main part, the other end of adjustment arm main part is provided with dustproof construction, dustproof construction includes spacing groove, rubber support ring and rubber lid, spacing groove fixedly connected in the opposite side of adjustment arm main part, one side of control arm inside is provided with and connects the abrasionproof structure.

When the automatic brake adjusting arm is used, the turbine of the automatic brake adjusting arm is clamped into the outer side of the cam shaft to be fastened and installed, then the installation hole on one side of the inner part of the control arm and the push rod of the slave cylinder are inserted through the clamping pin to be fastened and installed, the pushing direction of the automatic brake adjusting arm is kept consistent with that of the push rod of the slave cylinder during installation, then the support frame supports the adjusting arm main body to keep firm through the bolt support column through hole sleeve, then the adjusting pin is rotated through the special spanner tool to adjust the braking clearance, when a passenger car steps on a brake pedal, the adjusting arm main body drives the cam to rotate and exceed the braking clearance which is adjusted in advance, after the passenger car continues to brake, the cam angle travel enters the elastic deformation area, after the brake pedal is released, the cam angle is formed to return to the clearance area which is adjusted in advance, and in the process, the internal adjusting mechanism of the automatic brake adjusting arm drives the cam shaft to rotate a certain angle through the turbine, so that certain clearance adjustment is carried out.

Preferably, the connecting anti-wear structure comprises a mounting hole, wear-resistant balls and a bushing, wherein the mounting hole is formed in one side of the inner portion of the control arm, the wear-resistant balls are rotationally connected to the inner side wall of the mounting hole, the bushing is mounted on the inner side of the mounting hole, a plurality of wear-resistant balls which are rotationally connected are annularly distributed on the inner side of the mounting hole, and the bushing rotates under the rolling action of the wear-resistant balls when the control arm is pushed by the plunger rod.

Preferably, the installation hole and the inside of the lining are in a rotating structure, and the wear-resistant balls are annularly distributed on the inner side wall of the installation hole, so that the abrasion is not easy to occur when the plunger rod pushes the lining.

Preferably, the control bearing structure includes support frame, locating hole, support ball and hole cover, the support frame is installed in the one end of turbine, the locating hole has been seted up to one side of support frame inside, the inside rotation of support frame one side is connected with support ball, the hole cover has been seted up to the inside on support frame top, and support ball will fix along the lateral wall of adjustment arm main part when the adjustment arm main part rotates, makes support ball carry out certain support to the support frame.

Preferably, the supporting balls are distributed at equal intervals on one side of the supporting frame, and a rotating structure is formed between the supporting frame and the inside of the supporting balls, so that the supporting balls roll along the outer side wall of the adjusting arm main body and support the supporting frame.

Preferably, a rubber supporting ring is installed on the inner side of the limiting groove, one end of the rubber supporting ring is fixedly connected with a rubber cover, the other end of the adjusting arm main body is fixedly connected with the limiting groove, the rubber cover can be clamped into the inner side of the limiting groove through the rubber supporting ring, and the rubber cover covers the outer side of the turbine.

Preferably, the limit groove and the inner part of the rubber support ring are in an embedded structure, and the rubber cover and the turbine are positioned on the same vertical plane, so that the rubber cover can cover the outer side of the turbine.

(III) beneficial effects

The automatic brake adjusting arm for the passenger car has the advantages that: through being provided with dustproof construction, in order to avoid the influence of dust and dust, for this reason at the other end fixed connection spacing groove of adjusting arm main part, make the inboard of rubber lid accessible rubber support ring card income spacing groove to make the rubber lid cover the outside of turbine, make external dust and dust can not adsorb in the inboard of turbine in a large number, and then avoid the turbine to drive the camshaft and appear the card phenomenon, realized the dustproof to the turbine;

the connecting anti-wear structure is arranged, a plurality of wear-resistant balls which are connected in a rotating way are annularly distributed on the inner side of the mounting hole, the bushing is mounted on the inner side of the mounting hole, the bayonet lock when the pump pushing rod is inserted and mounted penetrates through the inner side of the bushing, and the bushing rotates under the rolling action of the wear-resistant balls when the pump pushing rod is inserted and pushed to push the control arm, so that the abrasion of the joint of the pump pushing rod and the control arm is reduced, and the connection anti-wear of the control arm is realized;

through being provided with control bearing structure, for preventing that the support frame from appearing crookedly after long-time use, for this reason rotates in support frame one side and connects the support ball, support ball will fix along the lateral wall of adjustment arm main part when the adjustment arm main part rotates, makes the support ball carry out certain support to the support frame to this makes the support frame be difficult for deformation when using, has realized improving the stability of this brake automatic adjustment arm.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

FIG. 3 is a schematic view of a three-dimensional disassembled structure of the present utility model for connecting an anti-wear structure;

FIG. 4 is a schematic top view of a control support structure according to the present utility model;

fig. 5 is a schematic view of a three-dimensional partial structure of the dust-proof structure of the present utility model.

In the figure: 1. an adjustment arm body; 2. a turbine; 3. a control arm; 4. connecting an anti-abrasion structure; 401. a mounting hole; 402. wear-resistant balls; 403. a bushing; 5. an adjustment pin; 6. controlling the support structure; 601. a support frame; 602. positioning holes; 603. supporting the balls; 604. a hole sleeve; 7. a dust-proof structure; 701. a limit groove; 702. a rubber support ring; 703. a rubber cover.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-5, the automatic brake adjusting arm for a passenger car provided by the utility model comprises an adjusting arm main body 1, a turbine 2 and a control arm 3, wherein the turbine 2 is installed in the adjusting arm main body 1, one side of the adjusting arm main body 1 is fixedly connected with the control arm 3, one side of the adjusting arm main body 1 is provided with an adjusting pin 5, the other end of the adjusting arm main body 1 is provided with a dustproof structure 7, the dustproof structure 7 comprises a limiting groove 701, a rubber supporting ring 702 and a rubber cover 703, the limiting groove 701 is fixedly connected with the other side of the adjusting arm main body 1, the rubber supporting ring 702 is installed on the inner side of the limiting groove 701, one end of the rubber supporting ring 702 is fixedly connected with the rubber cover 703, an embedded structure is formed between the limiting groove 701 and the rubber supporting ring 702, and the rubber cover 703 and the turbine 2 are in the same vertical plane.

The principle of operation of the automatic brake adjusting arm for a passenger car based on embodiment 1 is that, when the automatic brake adjusting arm is used, the turbine 2 of the automatic brake adjusting arm is clamped into the outer side of the cam shaft for fastening installation, then the installation hole 401 on one side of the inner part of the control arm 3 and the push rod of the pump are inserted through the bayonet lock for fastening installation, the pushing direction of the automatic brake adjusting arm is kept consistent with the pushing direction of the push rod of the pump during installation, then the supporting frame 601 supports the adjusting arm main body 1 to keep stable through the bolt post through hole sleeve 604, then the adjusting pin 5 is rotated by a special spanner tool for adjusting the braking clearance, when the passenger car steps on the brake pedal, the adjusting arm main body 1 drives the cam to rotate and exceeds the braking clearance adjusted in advance, after continuing braking, the cam angle stroke enters the elastic deformation zone, after the brake pedal is released, the brake returns, and the braking moment is reduced, at this time, the cam angle is returned to the gap position area adjusted in advance, in the process, the inner adjusting mechanism of the brake automatic adjusting arm drives the cam shaft to rotate by a certain angle through the turbine 2, so as to adjust a certain gap, after the brake automatic adjusting arm is installed on a passenger car and the passenger car runs for a long time, dust and dust raised on the road surface are mixed into the turbine 2 partially, after the dust and dust are accumulated in the turbine 2 in a large amount, the turbine 2 is easy to generate a clamping phenomenon when driving the cam shaft to rotate, so that the influence of the dust and dust is avoided, the other end of the adjusting arm main body 1 is fixedly connected with the limiting groove 701, the rubber cover 703 can be clamped into the inner side of the limiting groove 701 through the rubber supporting ring 702, the rubber cover 703 covers the outer side of the turbine 2, so that the external dust and dust can not be adsorbed on the inner side of the turbine 2 in a large amount, thereby avoiding the phenomenon that the turbine 2 drives the cam shaft to be blocked.

Example two

The embodiment further includes: one side inside the control arm 3 is provided with and connects wear-resisting structure 4, connects wear-resisting structure 4 and includes mounting hole 401, wear-resisting ball 402 and bush 403, and mounting hole 401 is seted up in one side inside the control arm 3, and the inside wall rotation of mounting hole 401 is connected with wear-resisting ball 402, and bush 403 is installed to the inboard of mounting hole 401, is rotating structure between mounting hole 401 and the inside wall of bush 403, and wear-resisting ball 402 is annular distribution at the inside wall of mounting hole 401.

In this embodiment, when the brake automatic adjusting arm is installed and used, the slave cylinder push rod is inserted and connected with the control arm 3 through the bayonet lock, and the slave cylinder push rod is pushed by the slave cylinder push rod to be inserted and rotated by a certain angle, and in order to prevent excessive wear caused by the connection of the control arm 3 and the slave cylinder push rod during long-time use, a plurality of wear-resistant balls 402 connected in a rotating manner are annularly distributed at the inner side of the installation hole 401, the bushing 403 is installed at the inner side of the installation hole 401, the bayonet lock when the slave cylinder push rod is inserted and installed penetrates through the inner side of the bushing 403, and the bushing 403 rotates under the rolling of the wear-resistant balls 402 when the slave cylinder push rod is inserted and pushed to the control arm 3, so that the wear of the joint of the slave cylinder push rod and the control arm 3 is reduced.

Example III

The embodiment further includes: control bearing structure 6 is installed to one end of adjustment arm main part 1, control bearing structure 6 includes support frame 601, locating hole 602, supporting ball 603 and hole cover 604, and support frame 601 installs in the one end of turbine 2, and locating hole 602 has been seted up to one side of support frame 601 inside, and the inside rotation of support frame 601 one side is connected with supporting ball 603, and hole cover 604 has been seted up to the inside on support frame 601 top, and supporting ball 603 is equidistant distribution in one side of support frame 601, is the revolution mechanic between support frame 601 and the supporting ball 603 inside.

In this embodiment, when the automatic brake adjusting arm is installed and used, the bolt through hole sleeve 604 is used for fixing, so that the automatic brake adjusting arm can be kept stable, the adjusting arm main body 1 rotates at a certain angle in a certain reverse direction when the control arm 3 is pushed by the pump push rod, and in order to prevent the support frame 601 from tilting after long-time use, the support ball 603 is rotatably connected to one side of the support frame 601, and the support ball 603 is fixed along the outer side wall of the adjusting arm main body 1 when the adjusting arm main body 1 rotates, so that the support ball 603 supports the support frame 601 to a certain extent, and thus the support frame 601 is not easy to deform when in use.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a brake automatic adjustment arm for passenger train, includes adjustment arm main part (1), turbine (2) and control arm (3), its characterized in that: the turbine (2) is arranged in the adjusting arm main body (1), one side of the adjusting arm main body (1) is fixedly connected with the control arm (3), and one side of the adjusting arm main body (1) is provided with the adjusting pin (5);

one end of the adjusting arm main body (1) is provided with a control supporting structure (6), the other end of the adjusting arm main body (1) is provided with a dustproof structure (7), the dustproof structure (7) comprises a limiting groove (701), a rubber supporting ring (702) and a rubber cover (703), and the limiting groove (701) is fixedly connected to the other side of the adjusting arm main body (1);

one side of the control arm (3) is provided with a connecting anti-wear structure (4).

2. The automatic brake adjusting arm for a passenger car according to claim 1, wherein: the anti-wear structure (4) comprises a mounting hole (401), wear-resistant balls (402) and a bushing (403), wherein the mounting hole (401) is formed in one side of the inside of the control arm (3), the wear-resistant balls (402) are rotatably connected to the inner side wall of the mounting hole (401), and the bushing (403) is mounted on the inner side of the mounting hole (401).

3. The brake automatic adjustment arm for a passenger car according to claim 2, wherein: the wear-resistant ball bearings (402) are distributed in an annular shape on the inner side wall of the mounting hole (401).

4. The automatic brake adjusting arm for a passenger car according to claim 1, wherein: control bearing structure (6) include support frame (601), locating hole (602), support ball (603) and hole cover (604), one end in turbine (2) is installed in support frame (601), locating hole (602) have been seted up to one side of support frame (601) inside, the inside rotation of support frame (601) one side is connected with support ball (603), hole cover (604) have been seted up to the inside on support frame (601) top.

5. The automatic brake adjusting arm for a passenger car according to claim 4, wherein: the supporting balls (603) are distributed at equal intervals on one side of the supporting frame (601), and a rotating structure is formed between the supporting frame (601) and the inside of the supporting balls (603).

6. The automatic brake adjusting arm for a passenger car according to claim 1, wherein: the inner side of the limiting groove (701) is provided with a rubber supporting ring (702), and one end of the rubber supporting ring (702) is fixedly connected with a rubber cover (703).

7. The automatic brake adjusting arm for a passenger car according to claim 6, wherein: the limiting groove (701) and the inside of the rubber supporting ring (702) are in an embedded structure, and the rubber cover (703) and the turbine (2) are positioned on the same vertical plane.