Brake shoe block with noise elimination mechanism

Abstract

The utility model discloses a brake shoe block with a noise elimination mechanism, which comprises a brake shoe, two sides of the brake shoe are respectively welded and fixed with a silencing shell, the inner wall of each silencing shell is fixedly connected with a fixed separation net, the inner side of each fixed separation net is provided with sound-absorbing cotton, the inner wall of each sound-absorbing cotton is provided with a sound insulation plate, and the inner wall of each sound insulation plate is provided with a noise elimination mechanism. The other side of the fixed partition net is divided into a silencing cavity, a plurality of first sound absorption holes are formed in the front wall and the rear wall of the silencing shell, a plurality of second sound absorption holes are formed in the outer side wall of the silencing shell, and detachable brake pads are installed on the outer side wall of the silencing shell. Noise is sucked into the noise reduction cavity through the first sound absorption holes and the second sound absorption holes, sound energy rebounds repeatedly in the cavity and is converted into heat energy to be consumed, and the noise is further absorbed and isolated through the sound absorption cotton and the sound insulation plate. Due to the fact that the silencing shell and the brake pad are independently arranged, the brake pad can be independently disassembled and replaced after being greatly abraded, the disassembly and assembly efficiency is improved, the replacement cost is low, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake shoes, in particular to a brake shoe block with a noise elimination mechanism. Background Art

[0002] As a braking system, its function is to slow down or even stop the car as we wish. The working principle is to convert the kinetic energy of the car into heat energy through friction. The automobile braking system is mainly composed of energy supply device, control device, transmission device and brake. The common brakes are mainly drum brakes, and the brake shoe of the drum brake is the most important structure.

[0003] The existing brake shoe will generate a large noise when emergency braking due to the friction of the brake pad, which will interfere with people's hearing. In addition, the brake pad will wear out after long-term use, and the friction will decrease after wear, which will cause the hidden danger of brake failure. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a brake shoe with a noise elimination mechanism. Through the arranged brake pad, silencer shell, fixed partition net, sound-absorbing cotton, sound insulation board, sound-absorbing hole one and sound-absorbing hole two, the noise is sucked into the silencer cavity through sound-absorbing hole one and sound-absorbing hole two, and the sound energy rebounds many times in the cavity and is consumed after being converted into heat energy. The sound-absorbing cotton and the sound insulation board further absorb and isolate the noise, and the sound-absorbing effect is good, avoiding interference with human hearing; through the arranged mounting block, screw hole one, screw hole two, and notch, because the silencer shell and the brake pad are independently arranged, after the brake pad is worn out, it can be disassembled and replaced separately, thereby improving the disassembly and assembly slope, and the replacement cost is low, reducing safety hazards.

[0005] One of the purposes of the utility model is achieved by the following technical solution: a brake shoe with a noise elimination mechanism, comprising: a brake shoe, two fixed blocks are welded and fixed on the surface of the brake shoe, hooks are symmetrically welded on the opposite surfaces of the two fixed blocks, a spring is installed between the two hooks, silencer shells are welded and fixed on both sides of the brake shoe, a fixed partition net is fixed to the inner wall of the silencer shell, sound-absorbing cotton is provided on the inner side of the fixed partition net, a sound insulation board is provided on the inner wall of the sound-absorbing cotton, the other side of the fixed partition net is divided into a silencer cavity, a plurality of sound-absorbing holes 1 are opened on the front and rear walls of the silencer shell, a plurality of sound-absorbing holes 2 are opened on the outer side wall of the silencer shell, and a detachable brake pad is installed on the outer side wall of the silencer shell. Through the arranged brake pads, silencer shells, fixed partition nets, sound-absorbing cotton, sound insulation boards, sound-absorbing hole one and sound-absorbing hole two, the noise is sucked into the silencer cavity through sound-absorbing hole one and sound-absorbing hole two, the sound energy rebounds many times in the cavity, is converted into heat energy and then consumed, the sound-absorbing cotton and sound insulation boards further absorb and isolate the noise, the sound-absorbing effect is good, and interference with human hearing is avoided; through the arranged mounting blocks, screw holes one, screw holes two, and notches, because the silencer shell and the brake pads are independently arranged, after the brake pads are greatly worn, they can be disassembled and replaced separately, thereby improving the disassembly and assembly efficiency, and the replacement cost is low, reducing safety hazards.

[0006] According to the brake shoe with a noise elimination mechanism, a through hole corresponding to the second position of the sound absorbing hole is opened on the surface of the brake shoe.

[0007] According to the brake shoe with a noise elimination mechanism, the position of the sound absorbing hole 1 corresponds to the position of the silencer cavity.

[0008] A brake shoe with a noise elimination mechanism is provided, wherein the upper and lower ends of the muffler shell are both provided with mounting blocks, and a screw hole is opened on the mounting block.

[0009] According to the brake shoe with a noise elimination mechanism, notches are provided at the upper and lower ends of the brake pad, and screw holes 2 are provided on the upper and lower inner walls of the notch.

[0010] According to the brake shoe with a noise elimination mechanism, the positions of the screw hole 1 and the screw hole 2 correspond to each other, and the screw holes are threadedly connected by a bolt.

[0011] According to the brake shoe with a noise elimination mechanism, a mounting hole is provided on the front side of the brake shoe, and the mounting hole is connected to an external brake drum.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 It is a three-dimensional diagram of a brake shoe with a noise elimination mechanism of the utility model;

[0015] Figure 2 This is a structural diagram of a brake shoe with a noise elimination mechanism according to the utility model;

[0016] Figure 3 A three-dimensional diagram of a brake pad of a brake shoe with a noise elimination mechanism according to the utility model;

[0017] Figure 4 This is an enlarged view of point A of a brake shoe with a noise elimination mechanism according to the utility model.

[0018] Legend:

[0019] 1. Brake shoe; 2. Fixing block; 3. Hook; 4. Spring; 5. Mounting hole; 6. Silencer shell; 7. Brake pad; 8. Fixed partition net; 9. Sound-absorbing cotton; 10. Sound insulation board; 601. Sound-absorbing hole one; 602. Mounting block; 603. Screw hole one; 604. Silencer cavity; 605. Sound-absorbing hole two; 701. Through hole; 702. Screw hole two; 703. Notch. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4The utility model embodiment is a brake shoe with a noise elimination mechanism, which includes: a brake shoe 1, a mounting hole 5 is opened on the front side of the brake shoe 1, the mounting hole 5 is connected to the external brake drum, two fixing blocks 2 are welded and fixed on the surface of the brake shoe 1, hooks 3 are symmetrically welded on the opposite surfaces of the two fixing blocks 2, a spring 4 is installed between the two hooks 3, both sides of the brake shoe 1 are welded and fixed with a silencer shell 6, the inner wall of the silencer shell 6 is fixedly connected with a fixed partition net 8, the inner side of the fixed partition net 8 is provided with sound-absorbing cotton 9, the inner wall of the sound-absorbing cotton 9 is provided with a sound insulation board 10, the other side of the fixed partition net 8 is divided into a silencer chamber 604, and the front and rear walls of the silencer shell 6 are provided with a plurality of A dry sound-absorbing hole 601 is provided, and the position of the sound-absorbing hole 601 corresponds to the position of the silencer cavity 604. The outer side wall of the silencer shell 6 is provided with a plurality of sound-absorbing holes 605. The outer side wall of the silencer shell 6 is installed with a detachable brake pad 7. The upper and lower ends of the silencer shell 6 are provided with mounting blocks 602. The mounting blocks 602 are provided with screw holes 603. The upper and lower ends of the brake pad 7 are provided with slots 703. The upper and lower inner walls of the slots 703 are provided with screw holes 702. The positions of the screw holes 603 and the screw holes 702 correspond to each other, and are threadedly connected by bolts. The surface of the brake pad 7 is provided with a through hole 701 corresponding to the position of the sound-absorbing hole 605. By means of the brake pad 7, the silencer shell 6, the fixed partition net 8, the sound-absorbing cotton 9, the sound insulation board 10, the sound-absorbing hole 1 601 and the sound-absorbing hole 2 605, when the brake drum brake shoe 1 is braking, the noise generated during braking is sucked into the silencer cavity 604 through the sound-absorbing hole 1 601 and the sound-absorbing hole 2 605, the sound energy rebounds for many times in the cavity, is converted into heat energy and then consumed, and preliminary silencer is performed, the sound-absorbing cotton 9 further absorbs the noise to improve the silencer efficiency, and finally the sound insulation board 10 soundproofs the noise that has not been eliminated in the cavity, and silences the noise. The sound effect is good and interference to human hearing is avoided; through the arranged mounting block 602, screw hole 1 603, screw hole 2 702 and notch 703, since the silencer shell 6 and the brake pad 7 are independently arranged, the brake pad 7 can be disassembled and replaced separately after it is seriously worn. It only needs to loosen the bolts to release the lock of screw hole 1 603 and screw hole 2 702 to disassemble it. The notch 703 cooperates with the mounting block 602 to quickly position the screw hole 1 603 and the screw hole 2 702 during installation, thereby improving the disassembly and assembly slope, and the replacement cost is low, reducing safety hazards.

[0022] Working principle: When the brake drum brake shoe 1 is used, the noise generated during braking is sucked into the silencer cavity 604 through the sound absorption hole 1 601 and the sound absorption hole 2 605. The sound energy rebounds multiple times in the cavity and is consumed after being converted into heat energy, which is used for preliminary silencer. The sound-absorbing cotton 9 further absorbs the noise to improve the silencer efficiency. Finally, the sound insulation board 10 soundproofs the un-eliminated noise in the cavity, and the silencer effect is good.

[0023] When the brake pad 7 is worn out and needs to be replaced, the bolts are loosened to release the lock on the screw hole 603 and the screw hole 702, and the brake pad 7 can be removed. During installation, the notch 703 cooperates with the mounting block 602 to quickly position the screw hole 603 and the screw hole 702, thereby improving the disassembly and assembly slope, and the replacement cost is low, reducing safety hazards.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A brake shoe with a noise elimination mechanism, comprising: A brake shoe (1), characterized in that two fixing blocks (2) are welded and fixed on the surface of the brake shoe (1), hooks (3) are symmetrically welded on the opposite surfaces of the two fixing blocks (2), a spring (4) is installed between the two hooks (3), a silencer shell (6) is welded and fixed on both sides of the brake shoe (1), a fixed partition net (8) is fixed to the inner wall of the silencer shell (6), sound-absorbing cotton (9) is arranged on the inner side of the fixed partition net (8), a sound insulation board (10) is arranged on the inner wall of the sound-absorbing cotton (9), the other side of the fixed partition net (8) is divided into a silencer chamber (604), the front and rear walls of the silencer shell (6) are provided with a plurality of sound-absorbing holes (601), the outer side walls of the silencer shell (6) are provided with a plurality of sound-absorbing holes (605), and the outer side walls of the silencer shell (6) are provided with a detachable brake pad (7).

2. A brake shoe with a noise elimination mechanism according to claim 1, characterized in that: The surface of the brake pad (7) is provided with a through hole (701) corresponding to the position of the second sound absorbing hole (605).

3. The brake shoe with a noise elimination mechanism according to claim 1, characterized in that: The position of the sound absorbing hole 1 (601) corresponds to the position of the sound absorbing cavity (604).

4. The brake shoe with a noise elimination mechanism according to claim 1, characterized in that: The upper and lower ends of the muffler shell (6) are both provided with mounting blocks (602), and the mounting blocks (602) are provided with a screw hole 1 (603).

5. The brake shoe with a noise elimination mechanism according to claim 1, characterized in that: The upper and lower ends of the brake pad (7) are both provided with notches (703), and the upper and lower inner walls of the notch (703) are provided with screw holes (702).

6. A brake shoe with a noise elimination mechanism according to claim 4, characterized in that: The positions of the screw hole 1 (603) and the screw hole 2 (702) correspond to each other, and are threadedly connected by a bolt.

7. The brake shoe with a noise elimination mechanism according to claim 1, characterized in that: A mounting hole (5) is provided on the front side of the brake shoe (1), and the mounting hole (5) is connected to an external brake drum.

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