Brake pad steel backing capable of absorbing sound and reducing noise

Abstract

The utility model discloses a sound-absorbing and noise-reducing brake pad steel backing, which belongs to the technical field of brake pads, solves the problems that the inner wall of a sound-absorbing hole of an existing device cannot hinder sound reflection and the sound-absorbing effect is poor, and comprises a steel back panel, the top surface of the steel back panel is provided with the sound-absorbing hole in a penetrating manner, and the inner wall of the sound-absorbing hole is provided with the sound-absorbing hole. The inner diameters of the sound absorption holes are gradually increased from the top face to the bottom face, threaded grooves are formed in the inner walls of the sound absorption holes, side face grooves are formed in the periphery of the side face of the steel back panel, side face cushioning pads are fixedly arranged in the side face grooves in a sleeved mode, vibration generated during friction of the steel back panel can be absorbed through the side face cushioning pads, and therefore the damping effect of the steel back panel is improved. And when the noise is reflected back by the sound absorption plate, the noise can be reflected back by the inner walls of the sound absorption holes again due to the fact that the inner diameters of the sound absorption holes are gradually increased from the top face to the bottom face, then the noise is absorbed by the sound absorption plate again, the noise can be reflected and absorbed for multiple times through the sound absorption holes and the sound absorption plate, and the noise can be effectively reduced. And the sound absorption and noise reduction effects are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pads, in particular to a brake pad steel back for sound absorption and noise reduction. Background Art

[0002] The steel back is a component of the car brake pad. The steel back is used to contact the brake disc of the car headlight. When the steel back contacts the brake disc of the car, friction is generated, thereby achieving the purpose of slowing down the vehicle.

[0003] After searching, the application with patent number CN202022860107.7 discloses a brake pad steel back with a noise reduction component, including a steel back panel, a plurality of damping grooves are evenly opened on the top of the steel back panel, and a plurality of sound-absorbing holes are evenly opened at the bottom of the damping grooves, a noise reduction component is pasted on the bottom of the steel back panel, bolt mounting holes are correspondingly opened on the inside of the noise reduction component and the steel back panel, and the damping grooves and the bolt mounting holes are staggered, the damping grooves are arranged in two rows, and an angle is set with the radial direction of the steel back panel, and the angle between the side of the damping groove and the top surface of the steel back panel is 135°;

[0004] Although the brake pad steel back with noise reduction component can reduce the noise generated by the friction of the brake pad steel back by providing sound absorption holes in the damping groove of the steel back, the inner wall of the sound absorption holes of the brake pad steel back with noise reduction component cannot prevent the reflection of sound, and the sound absorption effect is poor.

[0005] Therefore, we proposed a brake pad steel backing that absorbs and reduces noise. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a brake pad steel back with sound absorption and noise reduction, which solves the problem that the inner wall of the sound absorption hole of the prior device cannot prevent the reflection of sound and the sound absorption effect is poor.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a brake pad steel back for sound absorption and noise reduction, comprising a steel back panel, a sound absorbing panel is fixedly installed on the bottom surface of the steel back panel;

[0008] A sound-absorbing hole is formed through the top surface of the steel back panel, the inner diameter of the sound-absorbing hole gradually increases from the top surface to the bottom surface, a threaded groove is formed on the inner wall of the sound-absorbing hole, side grooves are formed around the sides of the steel back panel, and side shock-absorbing pads are fixedly mounted inside the side grooves.

[0009] Preferably, the edges and corners of the steel back panel and the sound absorbing panel are rounded, and the four corners of the top surface of the steel back panel and the sound absorbing panel are respectively provided with a first mounting hole and a second mounting hole in opposite positions, wherein the rounded corner design is beneficial to reducing the noise generated by the friction between the steel back panel and the brake disc, and the steel back panel and the sound absorbing panel are conveniently installed by passing bolts through the first mounting holes and the second mounting holes.

[0010] Preferably, there are five sound-absorbing holes in total, and the array is distributed on the surface of the steel back panel, which is beneficial to improving the noise reduction effect.

[0011] Preferably, the top and bottom surfaces of the sound absorbing board are symmetrically provided with mounting grooves, shock absorbing gaskets are fixedly installed inside the mounting grooves, and the shock absorbing gaskets located on the top surface of the sound absorbing board are fitted with the bottom surface of the steel back panel. The sound absorbing board can absorb the noise generated by the friction of the steel back panel, and by arranging the shock absorbing gaskets on both sides of the sound absorbing board, the vibration generated by the friction of the steel back panel can be buffered, which is conducive to reducing noise.

[0012] Preferably, the mounting groove is made of a perforated aluminum plate material, and the shock-absorbing gasket is made of a soft rubber material, wherein the perforated aluminum plate material has the effect of thermal insulation, and the surface of the aluminum plate after perforation presents fine holes, which can better absorb sound and reduce noise pollution, and the rubber material can absorb the vibration generated by the steel back panel.

[0013] The utility model provides a brake pad steel back for sound absorption and noise reduction. It has the following beneficial effects:

[0014] 1. The steel back of the brake pad with sound absorption and noise reduction can absorb the vibration generated by the friction of the steel back panel through the side shock-absorbing pad, which is beneficial to reducing noise. The noise generated by the friction of the steel back panel will enter the inside of the sound-absorbing hole and then be absorbed by the threaded groove and the sound-absorbing board. When the noise is reflected back by the sound-absorbing board, since the inner diameter of the sound-absorbing hole gradually increases from the top surface to the bottom surface, the noise will be reflected back again by the inner wall of the sound-absorbing hole and then absorbed again by the sound-absorbing board. The noise can be reflected and absorbed multiple times by the sound-absorbing hole and the sound-absorbing board, thereby improving the effect of sound absorption and noise reduction, and solving the problem that the inner wall of the sound-absorbing hole of the existing device cannot prevent the reflection of sound and the sound absorption effect is poor;

[0015] 2. The sound-absorbing and noise-reducing brake pad steel back can absorb the vibration generated by the friction of the steel back panel through the shock-absorbing gasket on the top surface of the sound-absorbing board, and can absorb the vibration generated by the sound-absorbing board itself through the shock-absorbing gasket on the bottom surface of the sound-absorbing board, thereby achieving the purpose of reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the steel back panel structure of the utility model.

[0020] In the figure: 1. steel back panel; 11. first mounting hole; 12. sound-absorbing hole; 13. threaded groove; 14. side groove; 15. side shock-absorbing pad; 2. sound-absorbing board; 21. second mounting hole; 22. mounting groove; 23. shock-absorbing gasket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Figure 1-4 As shown: it includes a steel back panel 1, a sound-absorbing panel 2 is fixedly installed on the bottom surface of the steel back panel 1, a sound-absorbing hole 12 is opened through the top surface of the steel back panel 1, the inner diameter of the sound-absorbing hole 12 gradually increases from the top surface to the bottom surface, a threaded groove 13 is opened on the inner wall of the sound-absorbing hole 12, and a side groove 14 is opened around the side of the steel back panel 1. The inner set of the side groove 14 is fixed with a side shock-absorbing pad 15. The corners of the steel back panel 1 and the sound-absorbing panel 2 are rounded, and the four corners of the top surface of the steel back panel 1 and the sound-absorbing panel 2 are respectively opened with a first mounting hole 11 and a second mounting hole 21 in opposite positions. There are five sound-absorbing holes 12 in total, and the array is distributed on the surface of the steel back panel 1. The rounded design is conducive to reducing the friction between the steel back panel 1 and the brake disc The noise generated when the steel back panel 1 is rubbed is absorbed by the side shock-absorbing pad 15, which is conducive to reducing noise. The noise generated when the steel back panel 1 is rubbed will enter the inside of the sound-absorbing hole 12, and then be absorbed by the threaded groove 13 and the sound-absorbing board 2. When the noise is reflected back by the sound-absorbing board 2, since the inner diameter of the sound-absorbing hole 12 gradually increases from the top surface to the bottom surface, the noise will be reflected back again by the inner wall of the sound-absorbing hole 12, and then absorbed again by the sound-absorbing board 2. The noise can be reflected and absorbed multiple times by the sound-absorbing hole 12 and the sound-absorbing board 2, thereby improving the effect of sound absorption and noise reduction.

[0023] Example 2: Figure 1-3As shown: the top and bottom surfaces of the sound-absorbing board 2 are symmetrically provided with mounting grooves 22, and a shock-absorbing gasket 23 is fixedly installed inside the mounting groove 22, and the shock-absorbing gasket 23 located on the top surface of the sound-absorbing board 2 is in contact with the bottom surface of the steel back panel 1, the mounting groove 22 is made of a perforated aluminum gusset plate, and the shock-absorbing gasket 23 is made of a soft rubber material. The shock-absorbing gasket 23 on the top surface of the sound-absorbing board 2 can absorb the vibration generated by the friction of the steel back panel 1, and the shock-absorbing gasket 23 on the bottom surface of the sound-absorbing board 2 can absorb the vibration generated by the sound-absorbing board 2 itself, thereby achieving the purpose of reducing noise.

[0024] Working principle and use process of the utility model: when the steel back of the brake pad with sound absorption and noise reduction is used, the steel back panel 1 and the sound absorbing panel 2 are installed by bolts passing through the first mounting hole 11 and the second mounting hole 21 in sequence. When the steel back panel 1 rubs against the brake disc, the vibration generated by the friction of the steel back panel 1 can be absorbed by the shock-absorbing gasket 23 on the top surface of the sound absorbing panel 2, and the vibration generated by the sound absorbing panel 2 itself can be absorbed by the shock-absorbing gasket 23 on the bottom surface of the sound absorbing panel 2, which is beneficial to reducing noise. The noise generated by the friction of the steel back panel 1 will enter the interior of the sound absorbing hole 12, and then be absorbed by the threaded groove 13 and the sound absorbing panel 2. When noise is reflected back by the sound absorbing panel 2, since the inner diameter of the sound absorbing hole 12 gradually increases from the top surface to the bottom surface, the noise will be reflected back again by the inner wall of the sound absorbing hole 12, and then absorbed again by the sound absorbing panel 2. The noise can be reflected and absorbed multiple times, thereby improving the effect of sound absorption and noise reduction.

[0025] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A brake pad steel back for sound absorption and noise reduction, comprising a steel back panel (1), a sound absorbing panel (2) being fixedly mounted on the bottom surface of the steel back panel (1); Features: A sound-absorbing hole (12) is formed through the top surface of the steel back panel (1), the inner diameter of the sound-absorbing hole (12) gradually increases from the top surface to the bottom surface, a threaded groove (13) is formed on the inner wall of the sound-absorbing hole (12), side grooves (14) are formed around the sides of the steel back panel (1), and a side shock-absorbing pad (15) is fixedly mounted inside the side groove (14).

2. The brake pad steel back for sound absorption and noise reduction according to claim 1, characterized in that: The corners of the steel back panel (1) and the sound absorbing panel (2) are rounded, and the four corners of the top surfaces of the steel back panel (1) and the sound absorbing panel (2) are respectively provided with a first mounting hole (11) and a second mounting hole (21) which are positioned opposite to each other.

3. The brake pad steel back for sound absorption and noise reduction according to claim 1, characterized in that: A total of five sound-absorbing holes (12) are provided, and an array is distributed on the surface of the steel back panel (1).

4. The sound-absorbing and noise-reducing brake pad steel back according to claim 1, characterized in that: The top and bottom surfaces of the sound absorbing panel (2) are symmetrically provided with mounting grooves (22), a shock absorbing gasket (23) is fixedly installed inside the mounting groove (22), and the shock absorbing gasket (23) located on the top surface of the sound absorbing panel (2) is in contact with the bottom surface of the steel back panel (1).

5. The sound-absorbing and noise-reducing brake pad steel back according to claim 4, characterized in that: The mounting groove (22) is made of a perforated aluminum gusset plate, and the shock absorbing gasket (23) is made of a soft rubber material.

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