Anti-cracking and toughening brake pad preparation device

Abstract

The utility model belongs to the technical field of brake pads, and particularly relates to an anti-cracking and toughening brake pad manufacturing device which comprises a first vertical plate. A motor is fixedly connected to the middle of the side wall of the first vertical plate; the output end of the motor is fixedly connected with a conveying roller; a second vertical plate is arranged in the middle of the inner side wall of the first vertical plate; the first vertical plate and the second vertical plate are correspondingly arranged; the conveying roller is arranged between the first vertical plate and the second vertical plate; through the arrangement, the brake pad can be subjected to multiple times of quenching and tempering, the internal structure of the brake pad can be subjected to phase change through quenching, a tighter and more stable structure is formed, the abrasion resistance and the crack resistance of the brake pad are improved, residual stress in the brake pad can be released through tempering, and therefore the brittleness of the brake pad is reduced, and the toughness of the brake pad is improved; and through multiple times of quenching and tempering on the brake pad, the structure of the brake pad can be further refined, a more uniform and stable microstructure is formed, the strength and toughness of the brake pad are improved, and meanwhile the crack resistance of the brake pad is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake pads, in particular to a device for preparing a crack-resistant and toughened brake pad. Background Art

[0002] Brake pads are a key component in a car's braking system. They are fixed to the brake drum or disc that rotates with the wheel and act as a friction material. During braking, the brake pads slow down or stop the vehicle through friction.

[0003] When the driver steps on the brake pedal, the brake system transmits force to the brake pads through hydraulic or mechanical means, pressing them tightly against the brake disc or brake drum. Strong friction is generated between the brake pads and the brake disc or brake drum, thereby slowing down or stopping the vehicle.

[0004] In the existing technology, the brake pad raw materials are first mixed evenly according to a certain formula, then poured into a mold, formed by the action of high temperature and high pressure, and then cut and processed according to the design requirements. Finally, the brake pad product is obtained by hot pressing.

[0005] During long-term use and observation, it was found that in the process of preparing brake pads, quenching and tempering can improve their crack resistance and toughness, and reduce the occurrence of brake failures caused by cracks or breakage of brake pads.

[0006] To this end, the utility model provides a crack-resistant and toughened brake pad preparation device. Utility Model Content

[0007] In order to make up for the deficiencies of the prior art and solve at least one of the problems raised in the background art, a device for preparing a crack-resistant and toughened brake pad is proposed.

[0008] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a crack-resistant and toughened brake pad preparation device, comprising a first vertical plate; a motor is fixedly connected to the middle of the side wall of the first vertical plate; a conveying roller is fixedly connected to the output end of the motor; a second vertical plate is provided in the middle of the inner side wall of the first vertical plate; the first vertical plate and the second vertical plate are arranged correspondingly; the conveying roller is arranged between the first vertical plate and the second vertical plate; a heating box is fixedly connected to the middle of the side wall of the motor; the heating box is fixed to the second vertical plate; the heating box cover is arranged outside the second vertical plate; a water storage component is provided below the conveying roller; a plurality of support rods are fixedly connected to the inner side wall of the bottom of the water storage component; the other end of the support rod is fixedly connected to the There is a first water pipe; a plurality of water spray pipes are fixedly connected to the middle of the side wall of the first water pipe; the first water pipe and the water spray pipe are hollow and connected; through this setting, the brake pad can be quenched and tempered multiple times, and quenching can cause the internal structure of the brake pad to undergo phase change, forming a tighter and more stable organizational structure, improving its wear resistance and crack resistance, while tempering can release the residual stress inside the brake pad, thereby reducing the brittleness of the brake pad and improving its toughness. By quenching and tempering the brake pad multiple times, the organization of the brake pad can be further refined to form a more uniform and stable microstructure, which is beneficial to improving the strength and toughness of the brake pad while enhancing its crack resistance.

[0009] Preferably, the water storage assembly includes a water storage tank; the water storage tank is arranged below the heating tank; a water pump is fixedly connected to the inner side wall of the bottom of the water storage tank; the water pumping end of the water pump is fixedly connected to a water pumping pipe; the water outlet end of the water pump is fixedly connected to a water outlet pipe; the other end of the water outlet pipe is fixedly connected to a second water supply pipe; a plurality of water spraying ports are opened in the middle of the side wall of the second water supply pipe; the water spraying ports are arranged below the conveying roller; a plurality of connecting pipes are fixedly connected in the middle of the side wall of the second water supply pipe; the other end of the connecting pipe is connected to the first water supply pipe; the water storage tank, water pump, water pumping pipe, The water outlet pipe, the second water pipe, the water spray port, the connecting pipe, the first water pipe and the water spray port are all hollow and connected. By setting the second water pipe and the water spray port in this step, the quenched brake pad can be cooled from the bottom of the brake pad, ensuring that the temperature of each part of the brake pad can be evenly and quickly reduced, avoiding the problem of uneven structure and stress concentration caused by local overheating. In addition, this setting can make the temperature inside the brake pad evenly distributed, making it less likely to warp or deform during the cooling process, which helps to maintain the shape and dimensional accuracy of the brake pad.

[0010] Preferably, an electric push rod is provided on the top side wall of the heating box; a connecting rod is fixedly connected to the output end of the electric push rod; a connecting rod is fixedly connected to a connecting plate at the other end; a plurality of movable rods are fixedly connected to the middle of the side wall of the connecting plate; a cleaning ring is fixedly connected to the other end of the movable rod; the cleaning ring is sleeved on the outside of the conveying roller; a plurality of blades are fixedly connected to the middle of the side wall of the cleaning ring; the blades slide on the conveying roller; this step can efficiently remove the dirt remaining on the surface of the conveying roller by arranging the cleaning ring and the blade, reduce the wear and corrosion of the conveying roller caused by dirt accumulation, extend the service life of the conveying roller, and reduce the replacement frequency and maintenance cost.

[0011] Preferably, a fixed lower seat is provided in the middle of the side wall of the movable rod; a fixed upper seat is provided in the middle of the side wall of the movable rod; the fixed lower seat and the fixed upper seat are correspondingly arranged; a plurality of lubrication blocks are provided on the top side wall of the fixed lower seat; the lubrication block and the movable rod are correspondingly arranged; the movable rod slides inside the lubrication block; this step ensures the horizontal movement of the movable rod by setting the fixed lower seat and the fixed upper seat, reduces the damage to the conveying roller caused by the blade due to the misalignment of the movable rod, and the fixed lower seat and the fixed upper seat can also support the movable rod, ensure the accuracy during the transmission process, and avoid errors caused by shaking or deformation. By setting the lubrication block, a protective film can be formed on the surface of the movable rod, reducing the friction and friction coefficient between the movable rod and other components, which helps to extend the service life of the movable rod and other components, and reduce the frequency of replacement and maintenance.

[0012] Preferably, a fire curtain is fixedly connected to the middle of the side wall of the heating box; the fire curtains are a pair and are symmetrically arranged on both sides of the heating box; the fire curtains are arranged above the conveying rollers; this step can effectively reduce the direct damage of high temperature to the external environment and equipment when the heating box is heated by setting the fire curtains, thereby extending the service life of the equipment. At the same time, the fire curtains can reduce the loss of heat inside the heating box and improve the efficiency of energy use.

[0013] Preferably, an elastic pad is fixed to the middle of the side wall of the cleaning ring; the elastic pad is made of elastic material; by setting the elastic pad in this step, the debris remaining on the surface of the conveyor roller can be wiped off after the blade cleans the conveyor roller, thereby improving the smoothness of the conveyor roller surface. The smooth surface helps to reduce the friction resistance of the brake pad during the conveying process and reduce the heat and wear generated by friction.

[0014] Preferably, a counterweight is fixed to the bottom side wall of the fire curtain; there are multiple counterweights and they are evenly distributed at the bottom of the fire curtain; this step can enhance the drape of the fire curtain by setting the counterweight, so that the fire curtain can be hung more stably at the inlet and outlet of the heating box, reducing the situation where the fire curtain flutters or swings due to external factors.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The crack-resistant and toughened brake pad preparation device described in the present invention can perform multiple quenching and tempering on the brake pad through this setting. Quenching can cause the internal structure of the brake pad to undergo phase change, forming a tighter and more stable organizational structure, thereby improving its wear resistance and crack resistance, while tempering can release the residual stress inside the brake pad, thereby reducing the brittleness of the brake pad and improving its toughness. By performing multiple quenching and tempering on the brake pad, the organization of the brake pad can be further refined, forming a more uniform and stable microstructure, which is beneficial to improving the strength and toughness of the brake pad while enhancing its crack resistance.

[0017] 2. The crack-resistant and toughened brake pad preparation device described in the present invention can cool the quenched brake pad from the bottom of the brake pad by setting a second water pipe and a water nozzle, ensuring that the temperature of each part of the brake pad can be evenly and quickly reduced, avoiding the problems of uneven structure and stress concentration caused by local overheating. This setting can also make the temperature inside the brake pad evenly distributed, making it less likely to warp or deform during the cooling process, which helps to maintain the shape and dimensional accuracy of the brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the matching structure of the conveying roller and the heating box in the utility model;

[0021] Figure 3 This is a schematic diagram of the coordinated structure of the water delivery pipe and the water spray pipe in the utility model;

[0022] Figure 4 It is a schematic diagram of the matching structure of the blade and the cleaning ring in the utility model.

[0023] Legend:

[0024] 1. First vertical plate; 11. Motor; 12. Conveyor roller; 13. Second vertical plate; 14. Heating box; 15. Support rod; 16. First water pipe; 17. Water spray pipe; 2. Water storage tank; 21. Water pump; 22. Suction pipe; 23. Water outlet pipe; 24. Second water pipe; 25. Water spray port; 26. Connecting pipe; 3. Electric push rod; 31. Connecting rod; 32. Connecting plate; 33. Movable rod; 34. Cleaning ring; 35. Blade; 4. Fixed lower seat; 41. Fixed upper seat; 42. Lubricating block; 5. Fire curtain; 6. Elastic pad; 7. Counterweight. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Specific examples are given below.

[0027] like Figures 1 to 3 As shown, a crack-resistant and toughened brake pad preparation device according to an embodiment of the present invention comprises a first vertical plate 1; a motor 11 is fixedly connected to the middle of the side wall of the first vertical plate 1; a conveying roller 12 is fixedly connected to the output end of the motor 11; a second vertical plate 13 is provided in the middle of the inner side wall of the first vertical plate 1; the first vertical plate 1 and the second vertical plate 13 are arranged correspondingly; the conveying roller 12 is arranged between the first vertical plate 1 and the second vertical plate 13; a heating box 14 is fixedly connected to the middle of the side wall of the motor 11; the heating box 14 is fixed to the second vertical plate 13; the heating box 14 cover is arranged in the first The outside of the second vertical plate 13; a water storage component is provided under the conveying roller 12; a plurality of support rods 15 are fixedly connected to the inner side wall of the bottom of the water storage component; the other end of the support rod 15 is fixedly connected to a first water pipe 16; a plurality of water spray pipes 17 are fixedly connected to the middle of the side wall of the first water pipe 16; the first water pipe 16 and the water spray pipe 17 are hollow and connected; when working, the staff injects enough water into the water storage component, and then places the brake pad on the top of the conveying roller 12, then starts the motor 11, and the conveying roller 12 starts to rotate, and when the conveying roller 12 rotates, it will bring the top The brake pad moves between the first vertical plate 1 and the second vertical plate 13. When the brake pad moves to the inside of the heating box 14, it will be heated to a certain temperature and then moved out of the heating box 14. At this time, the water storage component will inject water into the first water pipe 16. Because the first water pipe 16 is connected to the water spray pipe 17, the water will be sprayed on the moving brake pad through multiple water spray pipes 17 to cool the brake pad. After cooling, the brake pad will continue to move under the drive of the conveyor roller 12 and enter the heating box 14 again for secondary heating. When it is moved out of the heating box 14, It will be cooled again. Through this setting, the brake pad can be quenched and tempered multiple times. Quenching can cause phase change in the internal structure of the brake pad to form a tighter and more stable organizational structure, thereby improving its wear resistance and crack resistance. Tempering can release the residual stress inside the brake pad, thereby reducing the brittleness of the brake pad and improving its toughness. By quenching and tempering the brake pad multiple times, the organization of the brake pad can be further refined to form a more uniform and stable microstructure, which is beneficial to improving the strength and toughness of the brake pad while enhancing its crack resistance.

[0028] like Figure 1 and Figure 3 As shown, the water storage assembly includes a water tank 2; the water tank 2 is arranged below the heating box 14; a water pump 21 is fixedly connected to the inner side wall of the bottom of the water tank 2; the water pumping end of the water pump 21 is fixedly connected to a water pumping pipe 22; the water outlet end of the water pump 21 is fixedly connected to a water outlet pipe 23; the other end of the water outlet pipe 23 is fixedly connected to a second water pipe 24; a plurality of water spraying ports 25 are opened in the middle of the side wall of the second water pipe 24; the water spraying ports 25 are arranged below the conveying roller 12; a plurality of connecting pipes 26 are fixedly connected in the middle of the side wall of the second water pipe 24; the other end of the connecting pipe 26 is connected to the first water pipe 16; the water tank 2, water pump 21, water pumping pipe 22, water outlet pipe 23, second water pipe 24, water spraying ports 25, connecting pipe 26, first water pipe 16 and the water spray pipe 17 are both hollow and connected; when working, the staff fills the water tank 2 with water, and then starts the water pump 21. The water pump 21 will draw the water inside the water tank 2 into the water outlet pipe 23 and the second water pipe 24 through the suction pipe 22, and spray it from multiple water nozzles 25 to the bottom of the brake pad. This step can cool the quenched brake pad from the bottom of the brake pad by setting the second water pipe 24 and the water nozzle 25, ensuring that the temperature of each part of the brake pad can be evenly and quickly reduced, avoiding the problem of uneven structure and stress concentration caused by local overheating, and this setting can make the temperature inside the brake pad evenly distributed, making it less likely to warp or deform during the cooling process, which helps to maintain the shape and dimensional accuracy of the brake pad.

[0029] like Figure 1 、 Figure 2 and Figure 4 As shown, the top side wall of the heating box 14 is provided with an electric push rod 3; the output end of the electric push rod 3 is fixedly connected to a connecting rod 31; the other end of the connecting rod 31 is fixedly connected to a connecting plate 32; a plurality of movable rods 33 are fixedly connected to the middle of the side wall of the connecting plate 32; the other end of the movable rod 33 is fixedly connected to a cleaning ring 34; the cleaning ring 34 is sleeved on the outside of the conveying roller 12; a plurality of blades 35 are fixedly connected to the middle of the side wall of the cleaning ring 34; the blades 35 slide on the conveying roller 12; during operation, after the quenching and tempering operations are completed, the staff starts the electric push rod 3, and then connects The connecting rod 31 pushes the connecting plate 32 to move. When the connecting plate 32 moves, it pushes multiple movable rods 33 to move synchronously, so that the cleaning ring 34 at the end of the movable rod 33 slides on the conveyor roller 12. At this time, the multiple blades 35 on the side wall of the cleaning ring 34 will scrape off the stubborn dirt attached to the side wall of the conveyor roller 12. By setting the cleaning ring 34 and the blades 35, this step can efficiently remove the dirt remaining on the surface of the conveyor roller 12, reduce the wear and corrosion of the conveyor roller 12 caused by dirt accumulation, extend the service life of the conveyor roller 12, and reduce the replacement frequency and maintenance cost.

[0030] like Figure 1 and Figure 4As shown, a fixed lower seat 4 is provided in the middle of the side wall of the movable rod 33; a fixed upper seat 41 is provided in the middle of the side wall of the movable rod 33; the fixed lower seat 4 and the fixed upper seat 41 are correspondingly arranged; a plurality of lubricating blocks 42 are provided on the top side wall of the fixed lower seat 4; the lubricating blocks 42 and the movable rod 33 are correspondingly arranged; the movable rod 33 slides inside the lubricating block 42; during operation, when the movable rod 33 moves driven by the connecting plate 32, the movable rod 33 will pass between the fixed lower seat 4 and the fixed upper seat 41 and slide inside the lubricating block 42, at which time the lubricating block 42 will apply a layer of lubricating oil to the surface of the movable rod 33, This step ensures the horizontal movement of the movable rod 33 by setting a fixed lower seat 4 and a fixed upper seat 41, reducing the damage of the blade 35 to the conveying roller 12 caused by the misalignment of the movable rod 33, and the fixed lower seat 4 and the fixed upper seat 41 can also support the movable rod 33 to ensure the accuracy during the transmission process and avoid errors caused by shaking or deformation. By setting the lubricating block 42, a protective film can be formed on the surface of the movable rod 33, reducing the friction and friction coefficient between the movable rod 33 and other components, which helps to extend the service life of the movable rod 33 and other components and reduce the frequency of replacement and maintenance.

[0031] like Figure 1 and Figure 2 As shown, a fire curtain 5 is fixedly connected to the middle of the side wall of the heating box 14; the fire curtain 5 is a pair and is symmetrically arranged on both sides of the heating box 14; the fire curtain 5 is arranged above the conveying roller 12; this step can effectively reduce the direct damage of high temperature to the external environment and equipment when the heating box 14 is heated by setting the fire curtain 5, thereby extending the service life of the equipment. At the same time, the fire curtain 5 can reduce the loss of heat inside the heating box 14 and improve the efficiency of energy use.

[0032] like Figure 4 As shown, an elastic pad 6 is fixed to the middle of the side wall of the cleaning ring 34; the elastic pad 6 is made of elastic material; by setting the elastic pad 6 in this step, after the blade 35 cleans the conveyor roller 12, the debris remaining on the surface of the conveyor roller 12 can be wiped off, thereby improving the smoothness of the surface of the conveyor roller 12. The smooth surface helps to reduce the friction resistance of the brake pad during the conveying process and reduce the heat and wear generated by friction.

[0033] like Figure 1 and Figure 2 As shown, the bottom side wall of the fire curtain 5 is fixed with a counterweight 7; there are multiple counterweights 7 and they are evenly distributed at the bottom of the fire curtain 5; this step can enhance the drape of the fire curtain 5 by setting the counterweight 7, so that the fire curtain 5 can be more stably hung at the inlet and outlet of the heating box 14, reducing the situation where the fire curtain 5 flutters or swings due to external factors.

[0034] Working principle: The staff injects enough water into the water storage component, and then places the brake pad on the top of the conveying roller 12. At this time, the motor 11 is started, and the conveying roller 12 starts to rotate. When the conveying roller 12 rotates, it will carry the top brake pad to move between the first vertical plate 1 and the second vertical plate 13. When the brake pad moves to the inside of the heating box 14, it will be heated to a certain temperature and then moved out of the heating box 14. At this time, the water storage component will inject water into the first water pipe 16. Because the first water pipe 16 is connected to the water spray pipe 17, the water will be sprayed on the moving The brake pads are cooled and cooled. After cooling, the brake pads will continue to move under the drive of the conveyor roller 12 and enter the heating box 14 again for secondary heating. When they are removed from the heating box 14, they will be cooled and cooled again. The staff fills the water tank 2 with water and then starts the water pump 21. The water pump 21 will pump the water inside the water tank 2 into the water outlet pipe 23 and the second water pipe 24 through the pumping pipe 22, and spray it from multiple water nozzles 25 to the bottom of the brake pads. After the quenching and tempering operations are completed, the staff starts the electric push rod 3, and then the connecting rod 31 pushes the connecting rod 31 to push ... The connecting plate 32 moves, and when the connecting plate 32 moves, it will push multiple movable rods 33 to move synchronously, so that the cleaning ring 34 at the end of the movable rod 33 slides on the conveying roller 12. At this time, the multiple blades 35 on the side wall of the cleaning ring 34 will scrape off the stubborn dirt attached to the side wall of the conveying roller 12. When the movable rod 33 moves driven by the connecting plate 32, the movable rod 33 will pass between the fixed lower seat 4 and the fixed upper seat 41 and slide inside the lubricating block 42. At this time, the lubricating block 42 will apply a layer of lubricating oil to the surface of the movable rod 33. By setting the fire curtain 5, the heating box can be effectively reduced. 14 During heating, high temperature directly damages the external environment and equipment, prolongs the service life of the equipment, and at the same time, the fire curtain 5 can reduce the heat loss inside the heating box 14 and improve the efficiency of energy use. By setting the elastic pad 6, the debris remaining on the surface of the conveyor roller 12 can be wiped off after the blade 35 cleans the conveyor roller 12, thereby improving the smoothness of the surface of the conveyor roller 12. By setting the counterweight block 7, the drape of the fire curtain 5 can be enhanced, so that the fire curtain 5 can be hung more stably at the inlet and outlet of the heating box 14, reducing the situation where the fire curtain 5 flutters or swings due to external factors.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A crack-resistant and toughened brake pad manufacturing device, comprising a first vertical plate (1); characterized in that: A motor (11) is fixedly connected to the middle of the side wall of the first vertical plate (1); a conveying roller (12) is fixedly connected to the output end of the motor (11); a second vertical plate (13) is provided in the middle of the inner side wall of the first vertical plate (1); the first vertical plate (1) and the second vertical plate (13) are arranged correspondingly; the conveying roller (12) is arranged between the first vertical plate (1) and the second vertical plate (13); a heating box (14) is fixedly connected to the middle of the side wall of the motor (11); the heating box (14) and the second vertical plate (13) are fixedly connected; the cover of the heating box (14) is arranged outside the second vertical plate (13); a water storage component is provided below the conveying roller (12); a plurality of support rods (15) are fixedly connected to the inner side wall of the bottom of the water storage component; the other end of the support rod (15) is fixedly connected to a first water pipe (16); a plurality of water spray pipes (17) are fixedly connected to the middle of the side wall of the first water pipe (16); the first water pipe (16) and the water spray pipe (17) are hollow and connected.

2. The device for preparing a crack-resistant and toughened brake pad according to claim 1, characterized in that: The water storage assembly comprises a water storage tank (2); the water storage tank (2) is arranged below the heating tank (14); a water pump (21) is fixedly connected to the inner side wall of the bottom of the water storage tank (2); a water pump (21) is fixedly connected to a water pump pipe (22); a water outlet end of the water pump (21) is fixedly connected to a water outlet pipe (23); the other end of the water outlet pipe (23) is fixedly connected to a second water delivery pipe (24); a plurality of water spraying ports (25) are provided in the middle of the side wall of the second water delivery pipe (24); The water spout (25) is provided below the conveying roller (12); a plurality of connecting pipes (26) are fixedly connected to the middle of the side wall of the second water delivery pipe (24); the other end of the connecting pipe (26) is connected to the first water delivery pipe (16); the water storage tank (2), the water pump (21), the water pumping pipe (22), the water outlet pipe (23), the second water delivery pipe (24), the water spout (25), the connecting pipe (26), the first water delivery pipe (16) and the water spout pipe (17) are all hollow and connected.

3. The device for preparing a crack-resistant and toughened brake pad according to claim 2, characterized in that: An electric push rod (3) is provided on the top side wall of the heating box (14); a connecting rod (31) is fixedly connected to the output end of the electric push rod (3); a connecting plate (32) is fixedly connected to the other end of the connecting rod (31); a plurality of movable rods (33) are fixedly connected to the middle of the side wall of the connecting plate (32); a cleaning ring (34) is fixedly connected to the other end of the movable rod (33); the cleaning ring (34) is sleeved on the outside of the conveying roller (12); a plurality of blades (35) are fixedly connected to the middle of the side wall of the cleaning ring (34); and the blades (35) slide on the conveying roller (12).

4. The device for preparing a crack-resistant and toughened brake pad according to claim 3, characterized in that: A fixed lower seat (4) is provided in the middle of the side wall of the movable rod (33); a fixed upper seat (41) is provided in the middle of the side wall of the movable rod (33); the fixed lower seat (4) and the fixed upper seat (41) are provided correspondingly; a plurality of lubricating blocks (42) are provided on the top side wall of the fixed lower seat (4); the lubricating blocks (42) and the movable rod (33) are provided correspondingly; and the movable rod (33) slides inside the lubricating blocks (42).

5. The device for preparing a crack-resistant and toughened brake pad according to claim 3, characterized in that: A fire curtain (5) is fixedly connected to the middle of the side wall of the heating box (14); the fire curtain (5) is a pair and is symmetrically arranged on both sides of the heating box (14); the fire curtain (5) is arranged above the conveying roller (12).

6. The device for preparing a crack-resistant and toughened brake pad according to claim 3, characterized in that: An elastic pad (6) is fixedly connected to the middle portion of the side wall of the cleaning ring (34); the elastic pad (6) is made of elastic material.

7. The device for preparing a crack-resistant and toughened brake pad according to claim 5, characterized in that: A counterweight (7) is fixedly connected to the side wall of the bottom of the fire curtain (5); the counterweight (7) is multiple and evenly distributed at the bottom of the fire curtain (5).

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