Friction plate capable of reducing friction noise

Abstract

The utility model relates to the field of friction plates, in particular to a friction plate capable of reducing friction noise, which comprises a rigid back and a friction plate, a damping composite bottom plate is mounted at the bottom of the rigid back through a sound absorption cavity, and a plurality of positioning columns and inserting columns are mounted at the upper end of the damping composite bottom plate. The positioning columns and the inserting columns penetrate through the steel back and are sequentially connected with the sound insulation cotton, the rubber pads, the thin-layer connecting plates and the friction plates in an inserted mode, and the tops of the positioning columns and the tops of the inserting columns are locked and fixed through threaded mounting sleeves. The damping cavity and the sound absorption cavity are arranged at the top and the bottom of the steel back and are matched with the rubber pad, the sound insulation cotton and other assemblies to absorb shaking and noise generated when the friction plate is used, meanwhile, the positioning columns and the inserting columns are arranged so that the installation stability of the friction plate can be effectively guaranteed, noise generated by shaking of the friction plate is avoided, and in the actual using process, the friction plate is prevented from being damaged. Mechanical vibration can be effectively reduced, and the purpose of reducing noise is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of friction plates, in particular to a friction plate capable of reducing friction noise. Background Art

[0002] The working principle of brakes is mainly from friction. The friction between the brake pads and the brake discs and between the tires and the ground is used to convert the kinetic energy of the vehicle into heat energy after friction, so as to stop the vehicle. A good and efficient brake system must be able to provide stable, sufficient and controllable braking force, and have good hydraulic transmission and heat dissipation capabilities to ensure that the force applied by the driver from the brake pedal can be fully and effectively transmitted to the master cylinder and each sub-cylinder.

[0003] At present, the brake pads on some traditional electric vehicles, motorcycles and other means of transportation can already meet basic usage requirements. However, in actual use, traditional friction pads are mostly directly connected to the rigid back through adhesive. After long-term use or multiple braking, the friction pads will be displaced or fall off, causing a certain amount of shaking during braking, thereby generating mechanical vibration noise. At the same time, such traditional friction pads have a single structure and cannot effectively suppress mechanical vibrations and cannot absorb noise. Therefore, there is an urgent need for a friction pad that can reduce friction noise. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a friction plate which can reduce friction noise.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A friction plate capable of reducing friction noise comprises a rigid back and a friction plate, wherein a damping composite bottom plate is installed at the bottom of the rigid back through a sound absorption cavity, and a plurality of positioning columns and plug columns are installed at the upper end of the damping composite bottom plate, wherein the positioning columns and the plug columns all pass through the rigid back and are plug-connected with sound insulation cotton, a rubber pad, a thin layer connecting plate and the friction plate in sequence, and the tops of the positioning columns and the plug columns are locked and fixed by threaded mounting sleeves;

[0007] A shock-absorbing cavity is provided at the upper part of the rigid back, and a rubber pad is filled in the shock-absorbing cavity; and a sound-absorbing cavity is provided at the lower part of the rigid back, and sound-insulating cotton is filled in the sound-absorbing cavity.

[0008] In addition, a preferred structure is that the bottom wall of the friction plate is connected to the upper end surface of the rigid back, and a plurality of positioning holes and through holes are opened in the middle of the friction plate, wherein the positioning holes and through holes are arranged corresponding to the positioning columns and plug columns.

[0009] In addition, a preferred structure is that a mounting hole is opened in the middle of the rigid back, and the mounting hole passes through the rigid back.

[0010] In addition, a preferred structure is that a damping composite bottom plate is installed inside the sound absorbing cavity, and sound insulation cotton is filled between the damping composite bottom plate and the sound absorbing cavity.

[0011] In addition, a preferred structure is that a through hole is opened in the middle of the positioning column and the insertion column, and a threaded connecting column is installed in the through hole. The threaded connecting column and the threaded mounting sleeve are threadedly connected to each other, and the threaded mounting sleeve is respectively sleeved and installed inside the positioning column and the insertion column.

[0012] In addition, a preferred structure is that the thin layer connecting plate is fixedly connected to the upper part of the rigid back and is arranged above the shock absorbing cavity.

[0013] In addition, a preferred structure is that the outer wall of the positioning column is provided with slots, and a plurality of outer convex strips are provided between the slots.

[0014] The beneficial effects of the utility model are:

[0015] In the utility model, the top and bottom of the rigid back are respectively provided with a shock absorbing cavity and a sound absorbing cavity, and rubber pads, sound insulation cotton and other components are used to absorb the shaking and noise generated when the friction plate is used. At the same time, the arrangement of positioning columns and plug columns can effectively ensure the installation stability of the friction plate to avoid the shaking and noise. In actual use, the sound generated by the friction of the friction plate will be absorbed through the positioning holes and through holes, and the positioning columns, damping composite bottom plate and other components will be used for effective sound absorption, thereby effectively reducing mechanical vibration and achieving the purpose of reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of a friction plate that can reduce friction noise proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of a friction plate that can reduce friction noise proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a friction plate that can reduce friction noise proposed by the utility model;

[0019] Figure 4 The utility model is a schematic diagram of a positioning column connection structure of a friction plate capable of reducing friction noise.

[0020] In the figure: 1 rigid back, 101 mounting hole, 102 shock absorbing cavity, 2 friction plate, 3 positioning hole, 31 through hole, 4 thin layer connecting plate, 5 rubber pad, 6 damping composite bottom plate, 7 positioning column, 8 plug column, 9 threaded connecting column, 10 threaded mounting sleeve, 11 sound insulation cotton, 12 sound absorbing cavity, 13 outer convex strip. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A friction plate capable of reducing friction noise comprises a rigid back 1 and a friction plate 2. A damping composite bottom plate 6 is installed at the bottom of the rigid back 1 through a sound absorption cavity 12. A plurality of positioning columns 7 and plug columns 8 are installed at the upper end of the damping composite bottom plate 6. The positioning columns 7 and plug columns 8 pass through the rigid back 1 and are plug-connected with sound insulation cotton 11, a rubber pad 5, a thin layer connecting plate 4, and the friction plate 2 in sequence. The tops of the positioning columns 7 and the plug columns 8 are locked and fixed by threaded mounting sleeves 10.

[0023] Furthermore, a shock absorbing cavity 102 is provided at the upper part of the rigid back 1, and a rubber pad 5 is filled in the shock absorbing cavity 102, and a sound absorbing cavity 12 is provided at the lower part of the rigid back 1, and a sound insulation cotton 11 is filled in the sound absorbing cavity 12. The sound insulation cotton 11 can effectively absorb the noise generated by the friction of the friction plate 2, and further absorb and suppress it through the damping composite bottom plate 6.

[0024] Furthermore, the bottom wall of the friction plate 2 is connected to the upper end surface of the rigid back 1 , and a plurality of positioning holes 3 and through holes 31 are provided in the middle of the friction plate 2 , wherein the positioning holes 3 and through holes 31 are provided corresponding to the positioning posts 7 and the insertion posts 8 .

[0025] Furthermore, a mounting hole 101 is opened in the middle of the rigid back 1, and the mounting hole 101 passes through the rigid back 1. The mounting holes 101 are opened on the rigid back 1, the thin connecting plate 4, the rubber pad 5, and the sound insulation cotton 11. The mounting hole 101 ensures consistency with the positioning hole 3 and the through hole 31, and can ensure consistency in insertion with the positioning column 7 and the plug column 8.

[0026] Furthermore, a damping composite bottom plate 6 is installed in the sound absorbing cavity 12 , and sound insulation cotton 11 is filled between the damping composite bottom plate 6 and the sound absorbing cavity 12 .

[0027] Furthermore, through holes are opened in the middle of the positioning column 7 and the insertion column 8, and threaded connecting columns 9 are installed in the through holes. The threaded connecting columns 9 and the threaded mounting sleeves 10 are threadedly connected to each other, and the threaded mounting sleeves 10 are respectively sleeved and installed inside the positioning column 7 and the insertion column 8.

[0028] Furthermore, the thin layer connecting plate 4 is fixedly connected to the upper part of the rigid back 1 and is arranged above the shock absorbing cavity 102 .

[0029] Furthermore, the outer wall of the positioning column 7 is provided with slots, and a plurality of outer convex strips 13 are provided between the slots.

[0030] In the present embodiment, the friction plate 2 will generate certain noise during use, and the noise will be introduced and absorbed through the multiple positioning holes 3 and through holes 31 opened in the middle of the friction plate 2, and corresponding positioning columns 7 and plug columns 8 are arranged in the positioning holes 3 and through holes 31. The noise is introduced into the damping composite base plate 6 at the bottom through the positioning columns 7 and plug columns 8, and sound insulation cotton 11 is arranged at the installation place of the damping composite base plate 6, that is, inside the sound absorption cavity 12. The sound insulation cotton 11 can effectively suppress and absorb the introduced noise, and due to the setting of the damping composite base plate 6, the noise generated by friction can be further absorbed and suppressed.

[0031] At the same time, there will inevitably be a certain amount of mechanical vibration during the use of friction, and the vibration force will be transmitted to the friction plate 2 and the rigid back 1, and a rubber pad 5 is arranged in the shock absorbing cavity 102 opened on the upper part of the rigid back 1. The rubber pad 5 cooperates with the upper thin layer connecting plate 4 to effectively absorb the mechanical vibration generated by friction. Therefore, due to the reduction and suppression of mechanical vibration, the sound of collision between its components is suppressed, thereby achieving the noise reduction function.

[0032] Among them, in actual use, the positioning column 7 is inserted into the mounting hole 101 of the rigid back 1, and passes through and connects the sound insulation cotton 11, the rigid back 1, the rubber belt 5, the thin layer connecting plate 4, and is embedded in the positioning hole 3 opened in the middle of the friction plate 2. The positioning hole 3 is used to position and fix the friction plate 2 as a whole, wherein an outer convex strip 13 is provided on the outer side of the positioning column 7, and the outer convex platform 13 is squeezed by the hole wall during the insertion process, and through the applied reverse force, the damping composite bottom plate 6 is firmly inserted into the friction plate 2, and by screwing the threaded mounting sleeve 10 into the threaded connecting column 9 provided in the positioning column 7, the threaded mounting sleeve 10 is pressed and locked against the inner wall of the positioning hole 3; at the same time, the connection method of the plug column 8 and the through hole 31 is used as the positioning column 7. Therefore, through the multiple locking cooperation of the positioning column 7 and the plug column 8, the overall stability of the friction plate 2 is improved, the connection tightness is improved, and mechanical shaking is avoided.

[0033] Among them, it is worth noting that the damping composite bottom plate 6 is specifically a damping composite material, and its material body can absorb vibrations and convert them into other forms of energy. Any related material type can be used in this mechanism. Therefore, the specific materials and principles not described above are technical common sense known to people in this field, so they will not be elaborated.

[0034] In the utility model, the top and bottom of the rigid back 1 are respectively provided with a shock absorbing cavity 102 and a sound absorbing cavity 12, and cooperate with components such as a rubber pad 5 and a sound-proof cotton 11 to absorb the shaking and noise generated when the friction plate 2 is used. At the same time, the arrangement of the positioning column 7 and the plug column 8 can effectively ensure the installation stability of the friction plate 2 to avoid the situation where it shakes and generates noise. In actual use, the sound generated by the friction of the friction plate 2 will be absorbed by the positioning hole 3 and the through hole 31, and effectively absorbed by the positioning column 7, the damping composite bottom plate 6 and other components, thereby effectively reducing mechanical vibration and achieving the purpose of reducing noise.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A friction plate capable of reducing friction noise, comprising a steel back (1) and a friction plate (2), characterized in that: A damping composite bottom plate (6) is installed at the bottom of the rigid back (1) via a sound absorbing cavity (12); a plurality of positioning columns (7) and plug columns (8) are installed at the upper end of the damping composite bottom plate (6); the positioning columns (7) and plug columns (8) all pass through the rigid back (1) and are plug-connected with the sound insulation cotton (11), the rubber pad (5), the thin layer connecting plate (4), and the friction plate (2) in sequence; and the tops of the positioning columns (7) and the plug columns (8) are locked and fixed by means of threaded mounting sleeves (10); The upper portion of the rigid back (1) is provided with a shock absorbing cavity (102), the shock absorbing cavity (102) being filled with a rubber pad (5), and the lower portion of the rigid back (1) is provided with a sound absorbing cavity (12), the sound absorbing cavity (12) being filled with sound insulation cotton (11).

2. A friction plate capable of reducing friction noise according to claim 1, characterized in that: The bottom wall of the friction plate (2) is connected to the upper end surface of the rigid back (1), and a plurality of positioning holes (3) and through holes (31) are provided in the middle of the friction plate (2), wherein the positioning holes (3) and through holes (31) are arranged corresponding to the positioning posts (7) and the insertion posts (8).

3. A friction plate capable of reducing friction noise according to claim 1, characterized in that: A mounting hole (101) is provided in the middle of the rigid back (1), and the mounting hole (101) passes through the rigid back (1).

4. A friction plate capable of reducing friction noise according to claim 1, characterized in that: A damping composite bottom plate (6) is inserted and installed inside the sound absorption cavity (12), and sound insulation cotton (11) is filled between the damping composite bottom plate (6) and the sound absorption cavity (12).

5. A friction plate capable of reducing friction noise according to claim 1, characterized in that: The positioning column (7) and the insertion column (8) are both provided with through holes in the middle, and threaded connection columns (9) are installed in the through holes. The threaded connection columns (9) and the threaded installation sleeves (10) are mutually threadedly connected, and the threaded installation sleeves (10) are respectively sleeved and installed inside the positioning column (7) and the insertion column (8).

6. A friction plate capable of reducing friction noise according to claim 1, characterized in that: The thin layer connecting plate (4) is fixedly connected to the upper part of the rigid back (1) and is arranged above the shock absorbing cavity (102).

7. A friction plate capable of reducing friction noise according to claim 5, characterized in that: The outer wall of the positioning column (7) is provided with slots, and a plurality of external convex strips (13) are arranged between the slots.

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