Adjustable multi-stage friction plate

Abstract

The utility model relates to the technical field of friction materials, and discloses an adjustable multistage friction plate which comprises an installation steel plate, a first friction plate, a second friction plate and a third friction plate, a heat insulation plate is fixedly connected to the top end of the installation steel plate, and the first friction plate, the second friction plate and the third friction plate are sequentially installed at the top end of the heat insulation plate. Elastic rubber pads are arranged at the bottom end of the second friction plate and the bottom end of the first friction plate, the size of the elastic rubber pad below the first friction plate is larger than that of the elastic rubber pad below the second friction plate, and anti-disengaging blocks are arranged at the positions, close to the two sides of the first friction plate, the two sides of the second friction plate and the two sides of the third friction plate, of the top end of the mounting steel plate. By means of the first friction plate, the second friction plate, the third friction plate, the elastic rubber mat and the installation steel sheet, multi-stage friction force adjustment can be conveniently achieved, the participation degree can be flexibly adjusted according to pressure changes in the braking process, local excessive abrasion is avoided, the overall service life can be conveniently prolonged, independent disassembly and replacement can be achieved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of friction material technology, specifically to an adjustable multi-stage friction plate. Background Technology

[0002] Friction plates are friction materials that use friction to slow down high-speed rotating rollers. Multi-stage friction plates are friction plate devices that can adjust the magnitude and distribution of friction force according to different working conditions. They are usually composed of multiple sets of friction plates and have the function of adjusting friction force.

[0003] A search revealed a Chinese patent for a friction pad, publication number CN220850509U, which includes a mounting block, a friction layer on the mounting block, and a heat dissipation layer between the friction layer and the mounting block for conducting and dissipating heat from the friction layer. The heat dissipation layer has a heat dissipation channel in its elongation direction, and the heat dissipation channel is connected to the outside.

[0004] The aforementioned friction pads increase the contact area between the heat dissipation layer and the air through heat dissipation channels, thereby improving the heat dissipation efficiency of the friction block. The wear-resistant inner core is wrapped with yarn to improve its elasticity and reduce its breakage. The first and second elastic sheets press against each other, thereby increasing the repulsive force between the heat insulation layer and the mounting block.

[0005] However, its structure is relatively simple, and it only uses a single friction plate to achieve friction and deceleration through contact. It is difficult to achieve multi-level friction adjustment, resulting in poor flexibility of use. In addition, the friction plate is made as a whole, and when some parts are severely worn, the whole piece needs to be replaced, resulting in high maintenance costs. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable multi-stage friction plate, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable multi-stage friction plate includes a mounting steel plate, a first friction plate, a second friction plate, and a third friction plate. A heat insulation plate is fixedly connected to the top of the mounting steel plate, and the first friction plate, the second friction plate, and the third friction plate are sequentially installed on the top of the heat insulation plate.

[0009] Both friction pad 2 and friction pad 1 have elastic rubber pads at their bottom ends, and the elastic rubber pad below friction pad 1 is larger than the elastic rubber pad below friction pad 2. Anti-detachment blocks are provided at the top of the mounting steel plate and near both sides of friction pad 1, friction pad 2, and friction pad 3. Movable grooves are provided at the center of both sides of the anti-detachment blocks. Connecting bolt posts are connected to both sides of friction pad 1, friction pad 2, and friction pad 3, and the connecting bolt posts are located in the movable grooves.

[0010] Preferably, friction plate 2, friction plate 1, and friction plate 3 are movably mounted on the mounting steel plate via connecting bolts and anti-detachment blocks, and friction plate 1, friction plate 2, and friction plate 3 are of equal size.

[0011] Preferably, the top surface of the third friction plate is lower than the top surface of the second friction plate, and the top surface of the second friction plate is lower than the top surface of the first friction plate.

[0012] Preferably, the friction coefficients of friction plate three, friction plate two, and friction plate one gradually decrease from back to front, and the friction coefficient of friction plate one is the smallest.

[0013] Preferably, the lower part of friction plate one, friction plate two, and friction plate three are provided with a plurality of heat dissipation holes, and the heat insulation plate is made of aluminum-silicon alloy.

[0014] Preferably, the top surface of the friction plate three under pressure is not lower than the top surface of the anti-detachment block, and the outer walls of the friction plate one, friction plate two, and friction plate three are provided with thickness warning lines.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model uses friction plate one, friction plate two, friction plate three, elastic rubber pad, and mounting steel plate to cooperate with each other. Because friction plate one is made of a low friction coefficient material, the friction coefficient of friction materials used in friction plate two and friction plate three gradually increases. When the pressure is low, friction plate one performs friction braking. When the pressure increases, friction plate two and friction plate three gradually participate in contact to provide stronger braking force, which facilitates multi-level friction force adjustment.

[0017] By using anti-detachment blocks, movable grooves, and connecting bolt columns to work with friction pads one and two in a non-fixed installation manner, friction pads one and two can flexibly adjust their engagement level according to pressure changes during braking, avoiding excessive local wear and extending the overall service life. Furthermore, friction pads one, two, and three are fixed by anti-detachment blocks and connecting bolt columns, and if one of them is severely worn, it can be disassembled and replaced individually, reducing maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable multi-stage friction plate in an embodiment of this utility model;

[0019] Figure 2 This is a top view of the structure of friction plate one, anti-detachment block, friction plate three, and friction plate two in the embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure for installing steel sheets, heat insulation sheets, and elastic rubber pads in an embodiment of this utility model.

[0021] In the diagram: 1. Installed steel plate; 2. Heat insulation plate; 3. Friction plate one; 4. Friction plate two; 5. Friction plate three; 6. Anti-detachment block; 7. Movable groove; 8. Connecting bolt post; 9. Elastic rubber pad; 10. Heat dissipation hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-3 An adjustable multi-stage friction plate includes a mounting steel plate 1, a first friction plate 3, a second friction plate 4, and a third friction plate 5. A heat insulation plate 2 is fixedly connected to the top of the mounting steel plate 1, and the first friction plate 3, the second friction plate 4, and the third friction plate 5 are sequentially installed on the top of the heat insulation plate 2.

[0025] See Figure 2 Furthermore, it is found that the bottom ends of friction plate 2 4 and friction plate 1 3 are provided with elastic rubber pads 9, and the size of the elastic rubber pad 9 under friction plate 1 3 is larger than that under friction plate 2 4. The sizes of friction plate 1 3, friction plate 2 4, and friction plate 3 5 are equal. The top surface height of friction plate 3 5 is lower than the top surface of friction plate 2 4, and the top surface of friction plate 2 4 is lower than the top surface of friction plate 1 3. The friction coefficients of friction plate 3 5, friction plate 2 4, and friction plate 1 3 gradually decrease from back to front, and the friction coefficient of friction plate 1 3 is the smallest. Several heat dissipation holes 10 are opened at the bottom of friction plate 1 3, friction plate 2 4, and friction plate 3 5. The heat insulation plate 2 is made of aluminum-silicon alloy.

[0026] Specifically, during braking, because friction pad 3 uses a low-friction coefficient material, the friction coefficients of friction pads 4 and 5 gradually increase relative to friction pad 3. At low braking pressure, braking is achieved through friction pad 3 contacting the roller. As braking pressure increases, the elastic pad 9 at friction pad 3 deforms under pressure, causing friction pad 4 to gradually move towards the roller until it contacts the roller for braking. If braking is still insufficient, friction pad 5 gradually participates in contact with the roller through the deformation of the elastic pad 9 at friction pad 4. At this point, the friction area and friction coefficient further increase, thereby providing stronger braking force to meet various needs from light braking to emergency braking, achieving a multi-level friction force adjustment effect.

[0027] Example 2

[0028] See Figure 2 and Figure 3 Furthermore, based on Embodiment 1, it is further found that anti-detachment blocks 6 are provided at the top of the mounting steel plate 1 and on both sides near the friction plates 1, 4, and 5. Movable grooves 7 are provided at the center of both sides of the anti-detachment blocks 6. Connecting bolt columns 8 are connected to both sides of the friction plates 1, 4, and 5, and the connecting bolt columns 8 are located in the movable grooves 7. The friction plates 2, 3, and 5 are movably mounted on the mounting steel plate 1 through the connecting bolt columns 8 and the anti-detachment blocks 6. Under the pressure state of the friction plate 1, the top surface of the friction plate 3 is not lower than the top surface of the anti-detachment block 6, and the outer walls of the friction plates 1, 3, 4, and 5 are provided with thickness warning lines.

[0029] Specifically, heat dissipation holes 10 are provided on friction plates 3, 4, and 5 to improve heat dissipation and reduce the probability of overheating and deformation of friction plates 3, 4, and 5. At the same time, each layer participates in braking in sequence, resulting in more uniform wear and extending the overall service life. Furthermore, friction plates 3, 4, and 5 are mounted on the mounting steel plate 1 by anti-detachment blocks 6 and connecting bolt posts 8 to improve installation stability.

[0030] In actual operation, because friction plate 13 is made of a low friction coefficient material, the friction coefficient of friction plate 24 and friction plate 35 gradually increases relative to friction plate 13. When the braking pressure is low, braking is achieved by friction plate 13 contacting the roller. When the braking pressure increases, the elastic pad 9 at friction plate 13 will be deformed under pressure. At this time, friction plate 24 will gradually move towards the roller until it fits against the roller to achieve braking.

[0031] When the braking force is still insufficient, the elastic pad 9 at the second friction pad 4 is compressed and deformed, causing the third friction pad 5 to gradually approach and participate in the contact with the roller. At this time, the friction area and friction coefficient are further increased, thereby providing stronger braking force to meet various needs from light braking to emergency braking, and achieving the effect of multi-level friction force adjustment.

[0032] Furthermore, friction plates 3, 4, and 5 are provided with heat dissipation holes 10 to improve heat dissipation and reduce the probability of overheating and deformation of friction plates 3, 4, and 5. At the same time, each layer participates in braking in sequence, resulting in more uniform wear and extending the overall service life.

[0033] Furthermore, friction plates 1 (3), 2 (4), and 3 (5) are mounted on the mounting steel plate 1 via anti-detachment blocks 6 and connecting bolt columns 8 to improve installation stability. The different layers of friction plates 1 (3), 2 (4), and 3 (5) allow for individual replacement or repair based on wear during subsequent maintenance, eliminating the need for complete replacement after partial wear, thus reducing maintenance costs.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable multi-step friction plate, characterized by: Including installation steel sheet (1), friction piece one (3), friction piece two (4), friction piece three (5), the top of the installation steel sheet (1) is fixedly connected with heat insulation sheet (2), friction piece one (3), friction piece two (4), friction piece three (5) are installed in the top of heat insulation sheet (2) in turn; The bottom of the friction piece two (4) and the friction piece one (3) is provided with elastic rubber pad (9), and the size of the elastic rubber pad (9) below the friction piece one (3) is greater than the elastic rubber pad (9) below the friction piece two (4), the top of the installation steel sheet (1) and the both sides of the friction piece one (3), the friction piece two (4), the friction piece three (5) are provided with anti-drop block (6), the both sides of the anti-drop block (6) are provided with movable slot (7), the both sides of the friction piece one (3), the friction piece two (4), the friction piece three (5) are connected with connecting bolt column (8), and the connecting bolt column (8) is located in the movable slot (7).

2. An adjustable multi-plate friction disc according to claim 1, characterized in that: The friction piece two (4), the friction piece one (3), the friction piece three (5) are movably installed on the installation steel sheet (1) through the connecting bolt column (8) and the anti-drop block (6), the size of the friction piece one (3), the friction piece two (4), the friction piece three (5) is equal.

3. An adjustable multi-plate friction disc according to claim 2, wherein: The top surface height of the friction piece three (5) is lower than the top surface of the friction piece two (4), and the top surface of the friction piece two (4) is lower than the top surface of the friction piece one (3).

4. An adjustable multi-plate friction disc according to claim 3, wherein: The friction coefficient of the friction piece three (5), the friction piece two (4), the friction piece one (3) gradually decreases from back to front, and the friction coefficient of the friction piece one (3) is minimum.

5. The adjustable multi-plate friction disc of claim 1, wherein: The lower part of the friction piece one (3), the friction piece two (4), the friction piece three (5) is provided with a plurality of heat dissipation holes (10), and the heat insulation sheet (2) is made of aluminum-silicon alloy.

6. An adjustable multi-plate friction disc according to claim 1, characterized in that: The top surface of the friction piece three (5) under the pressure state of the friction piece one (3) is not lower than the top surface of the anti-drop block (6), and the outer wall of the friction piece one (3), the friction piece two (4), the friction piece three (5) is provided with thickness warning line.

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