CN216111854U

CN216111854U - Novel fixing device for brake shoe

Info

Publication number: CN216111854U
Application number: CN202122826899.0U
Authority: CN
Inventors: 王玉柱; 谢宋才; 史梦祥
Original assignee: Qingdao Haitong Brake Co ltd
Current assignee: Qingdao Haitong Brake Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-03-22
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to the technical field of brake shoes, and discloses a novel brake shoe fixing device, which solves the problems that the conventional brake shoe fixing device is mostly of a sleeve door type structure, has high manufacturing cost and complex assembly, and is easy to cause clamping stagnation and non-return under severe working conditions; the device is simple and quick to assemble, the assembly efficiency is improved, the bolt and the horseshoe pin shaft do not need to be disassembled when the friction plate is replaced, and only the extension spring needs to be disassembled, so that the disassembly and the assembly are more convenient and quicker.

Description

Novel fixing device for brake shoe

Technical Field

The utility model belongs to the technical field of brake shoes, and particularly relates to a novel brake shoe fixing device.

Background

The brake shoe is a friction coupling of a drum brake, and should have a friction coefficient as high and stable as possible, and suitable wear resistance, heat radiation, heat capacity, and the like, in addition to strength and rigidity required as a member.

The existing brake shoe fixing device is mostly of a sleeve door type structure, the manufacturing cost is high, the assembly is complex, and the problem that the brake shoe is easy to block and does not return under severe working conditions is solved.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, the utility model provides the novel brake shoe fixing device to overcome the defects of the prior art, and the novel brake shoe fixing device effectively solves the problems that the conventional brake shoe fixing device is mostly of a sleeve door type structure, the manufacturing cost is high, the assembly is complex, and the brake shoe is easy to be blocked and not return under severe working conditions.

In order to achieve the purpose, the utility model provides the following technical scheme: novel fixing device of brake shoe, including the brake plate, the both ends symmetry of brake plate is installed and is linked pin axle bed as an organic whole, and the internally mounted of pin axle bed has the round pin axle body, installs the horseshoe on the round pin axle body, and the semicircle orifice that matches with the round pin axle body is seted up to the symmetry on the horseshoe, connects through extension spring between the horseshoe.

Preferably, an opening matched with the pin shaft seat is formed in one end, close to the semicircular hole, of the shoe, and the opening is of a U-shaped structure.

Preferably, a spring hole is formed in the shoe body in the direction away from the semicircular hole, and the spring hole is arranged corresponding to the extension spring.

Preferably, the inside equidistance in semicircle orifice is seted up the recess, and the inside of recess is inlayed and is equipped with the ball.

Preferably, the two ends of the pin shaft body are provided with annular grooves, and the annular grooves correspond to the balls.

Preferably, the pin shaft body is further provided with a dustproof sleeve, the top of the dustproof sleeve is of a cylindrical structure, and the bottom of the dustproof sleeve is of a semi-cylindrical structure.

Compared with the prior art, the utility model has the beneficial effects that:

1) in the work, the device is simple and quick to assemble, the assembly efficiency is improved, the bolt and the horseshoe pin shaft do not need to be disassembled when the friction plate is replaced, and only the extension spring needs to be disassembled, so that the disassembly and the assembly are more convenient and quick;

2) in the work, sleeve and compound bush have been cancelled to this structure, only brake shoe semicircle orifice and the contact of shoe round pin axle, area of contact is less, and the use of cooperation ball has solved because the dust piles up the problem that causes the brake shoe jamming not return in the sleeve.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic structural view of the pin body according to the present invention.

In the figure: 1. a brake plate; 2. a pin shaft seat; 3. a pin shaft body; 301. an annular groove; 4. a horseshoe; 401. a semicircular hole; 4011. a groove; 4012. a ball bearing; 402. an opening; 403. a spring hole; 5. a tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 4, the brake device comprises a brake plate 1, pin shaft seats 2 connected into a whole are symmetrically installed at two ends of the brake plate 1, pin shaft bodies 3 are installed inside the pin shaft seats 2, shoes 4 are installed on the pin shaft bodies 3, semicircular holes 401 matched with the pin shaft bodies 3 are symmetrically formed in the shoes 4, the shoes 4 are connected through extension springs 5, openings 402 matched with the pin shaft seats 2 are formed in one ends, close to the semicircular holes 401, of the shoes 4, and the openings 402 are of a U-shaped structure;

when installing it, only need with the semicircle orifice 401 joint on the horseshoe 4 on selling the axle body 3, then link together two horseshoes 4 through extension spring 5, under extension spring 5's effect, make semicircle orifice 401 and round pin axle body 3 in close contact with, avoid taking place to break away from the phenomenon, when needs are dismantled to it, only need take off extension spring 5 through the instrument simultaneously, then directly take off horseshoe 4 can, it is comparatively convenient to operate.

In the second embodiment, on the basis of the first embodiment, a spring hole 403 is formed in the shoe 4 in the direction away from the semicircular hole 401, the spring hole 403 is arranged corresponding to the extension spring 5, grooves 4011 are formed in the semicircular hole 401 at equal intervals, balls 4012 are embedded in the grooves 4011, annular grooves 301 are formed in both ends of the pin shaft body 3, the annular grooves 301 are arranged corresponding to the balls 4012, a dustproof sleeve is further mounted on the pin shaft body 3, the top of the dustproof sleeve is of a cylindrical structure, and the bottom of the dustproof sleeve is of a semi-cylindrical structure;

in the process of the operation of shoe 4, can reduce the area of contact of shoe 4 and round pin axle body 3 through semicircle orifice 401, cooperate the use of ball 4012 and ring channel 301 simultaneously, can reduce the wearing and tearing between shoe 4 and the round pin axle body 3.

The working principle is as follows: when the pin shaft is in work, firstly, when the pin shaft is installed, only the semicircular holes 401 on the shoes 4 are required to be clamped on the pin shaft body 3, then the two shoes 4 are connected together through the extension spring 5, under the action of the extension spring 5, the semicircular holes 401 are in close contact with the pin shaft body 3, the separation phenomenon is avoided, and meanwhile, when the pin shaft needs to be disassembled, only the extension spring 5 needs to be taken down through a tool, then the shoes 4 are directly taken down, and the operation is convenient; in the process of the operation of shoe 4, can reduce the area of contact of shoe 4 and round pin axle body 3 through semicircle orifice 401, cooperate the use of ball 4012 and ring channel 301 simultaneously, can reduce the wearing and tearing between shoe 4 and the round pin axle body 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Novel fixing device of brake shoe, including braking board (1), its characterized in that: the brake block is characterized in that pin shaft seats (2) which are connected into a whole are symmetrically arranged at two ends of the brake block (1), pin shaft bodies (3) are arranged inside the pin shaft seats (2), shoes (4) are arranged on the pin shaft bodies (3), semicircular holes (401) matched with the pin shaft bodies (3) are symmetrically formed in the shoes (4), and the shoes (4) are connected through extension springs (5).

2. The new fixing device of brake shoe according to claim 1, characterized in that: an opening (402) matched with the pin shaft seat (2) is formed in one end, close to the semicircular hole (401), of the shoe (4), and the opening (402) is of a U-shaped structure.

3. The new fixing device of brake shoe according to claim 1, characterized in that: spring holes (403) are formed in the shoe (4) in the direction away from the semicircular hole (401), and the spring holes (403) are arranged corresponding to the extension springs (5).

4. The new fixing device of brake shoe according to claim 2, characterized in that: the inside equidistance of semicircle orifice (401) is seted up fluted (4011), and ball (4012) are inlayed in the inside of recess (4011).

5. The new fixing device of brake shoe according to claim 1, characterized in that: annular grooves (301) are formed in the two ends of the pin shaft body (3), and the annular grooves (301) correspond to the balls (4012).

6. The new fixing device of brake shoe according to claim 1, characterized in that: the hinge pin body (3) is further provided with a dustproof sleeve, the top of the dustproof sleeve is of a cylindrical structure, and the bottom of the dustproof sleeve is of a semi-cylindrical structure.