Friction and wear performance testing device for brake disc

Abstract

The utility model discloses a brake disc friction and wear performance testing device, which belongs to the technical field of brake disc testing, and comprises a rack, a support frame is fixedly arranged on the upper surface of the rack, a motor is fixedly arranged in the rack, a rotating shaft is rotatably arranged on the rack, and the rotating shaft is fixedly arranged on the support frame. Belt wheels are fixedly mounted on an output shaft of the motor and the outer surface of the rotating shaft, a belt is in transmission connection between the two belt wheels, a first mounting disc is fixedly mounted at the top end of the rotating shaft, and a plurality of first mounting bolts are mounted on the first mounting disc in a threaded mode; a motor is arranged to be matched with a rotating shaft, a belt wheel and a belt for use, rotation of a first installation disc on the rotating shaft is achieved, then rotation of a brake disc fixed to the first installation disc is achieved, friction and wear performance testing operation is achieved by matching with a friction pin installed on a pin clamp for use; and the load borne by the friction pin can be adjusted by increasing or reducing the number of the weight pans, so that the frictional wear performance under different pressure loads can be tested.

Description

Technical Field

[0001] This utility model belongs to the field of brake disc testing technology, specifically relating to a brake disc friction and wear performance testing device. Background Technology

[0002] In automotive repair and automotive technology education, the quality of a car brake disc is mainly reflected in its friction and wear performance, and the quality of the brake disc is related to the life safety of the people in the car.

[0003] In automotive repair and automotive technology education, testing devices are needed to test the friction and wear performance of brake discs. However, existing testing devices are not convenient to adjust according to the friction force and cannot perform friction and wear performance tests under different temperature environments, which limits their use. Utility Model Content

[0004] The purpose of this invention is to provide a brake disc friction and wear performance testing device to solve the problems mentioned in the background art, such as the inconvenience of adapting the existing testing device to the friction force during use, the inability to test friction and wear performance under different temperature environments, and the limitations in its use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brake disc friction and wear performance testing device, comprising a frame, a support frame fixedly mounted on the upper surface of the frame, a motor fixedly mounted inside the frame, a rotating shaft rotatably mounted on the frame, pulleys fixedly mounted on the output shaft of the motor and the outer surface of the rotating shaft, a belt connecting the two pulleys, a mounting plate fixedly mounted on the top of the rotating shaft, a plurality of mounting bolts threaded onto the mounting plate, a fixing frame sleeved on the outside of the rotating shaft, and a mica heating element fixedly mounted on the fixing frame. The frame includes a sliding column slidably mounted on the support frame. A pin clamp is fixedly mounted at the bottom of the sliding column, and a friction pin is detachably mounted on the pin clamp. A second mounting plate is fixedly mounted at the top of the sliding column, and several weight plates are arranged on the upper surface of the second mounting plate. A ventilation pipe is fixedly mounted on the side of the frame, and a dust filter is detachably mounted at the bottom of the ventilation pipe. The top of the ventilation pipe faces the first mounting plate, and a ventilation fan is fixedly mounted on the inner wall of the top. A protective grille is inserted into the top of the ventilation pipe. A dual-channel temperature controller, a torque display, and a power supply are fixedly mounted on the side of the frame.

[0006] The above scheme utilizes a motor, a rotating shaft, pulleys, and a belt to rotate the mounting disc on the shaft, thereby rotating the brake disc fixed on the mounting disc. This, combined with the friction pin mounted on the pin clamp, enables friction and wear performance testing. The load on the friction pin can be adjusted by increasing or decreasing the number of weight pans, allowing for testing of friction and wear performance under different pressure loads. Furthermore, by using a ventilation fan in conjunction with a mica heating coil, heating is achieved through the mica heating coil, and cooling is achieved through the ventilation fan. This allows for testing of brake disc friction and wear performance under different temperature environments, further improving the accuracy of test results under various conditions.

[0007] In the above scheme, it should be noted that the temperature control sensor of the dual-channel temperature control instrument is used to sense the surface temperature of the brake disc, the torque sensor of the torque display is used to sense the rotational torque of the shaft, and the power supply is used to supply power to each electrical component.

[0008] In a preferred embodiment, the pin clamp is threaded with a second mounting bolt, and the pin clamp and the friction pin are detachably connected by the second mounting bolt.

[0009] Using the above scheme, the installation of the second mounting bolt can be used to assemble the pin clamp and the friction pin. The assembly operation is simple and not easy to loosen.

[0010] In a preferred embodiment, an installation ring is fixedly installed on the outer surface of the installation plate, a plurality of support plates are fixedly installed on the upper surface of the frame, and an arc-shaped slider is fixedly installed on the side of the support plate, the arc-shaped slider being slidably installed on the inner wall of the installation ring.

[0011] By using the above scheme, the mounting ring is used in conjunction with the support plate and the arc-shaped slider. During the rotation of the mounting plate, the arc-shaped slider slides inside the mounting ring, thus ensuring good rotational stability of the mounting plate.

[0012] In a preferred embodiment, a number of assembly seats are fixedly installed on the outer surface of the dust filter, and a number of mounting bolts are threaded between the assembly seats and the ventilation pipe.

[0013] Using the above solution, the assembly base can be used in conjunction with the three mounting bolts to achieve convenient disassembly and assembly of the dust filter. The threaded connection has good stability and is not easy to fall off.

[0014] In a preferred embodiment, a plurality of alignment rods are fixedly installed at the bottom end of the ventilation pipe, and alignment holes for inserting the alignment rods are provided on the assembly base.

[0015] The above solution utilizes the alignment rod in conjunction with the alignment hole to achieve the alignment and insertion of the dust filter, and facilitates the rotation operation of the installation bolt three.

[0016] In a preferred embodiment, a number of limiting blocks are fixedly installed on the outer surface of the protective grille, and a number of limiting slots are opened on the inner wall of the top end of the ventilation pipe, with the limiting blocks inserted into the inner wall of the limiting slots.

[0017] By using the above method, the protective grille can be easily installed by inserting the limiting block into the limiting slot.

[0018] In a preferred embodiment, a locking ball is fixedly installed on the side of the limiting plug, and a locking groove is provided on the inner wall of the limiting slot for the locking ball to be inserted.

[0019] Using the above solution, after the limiting block is inserted into the limiting groove, the locking ball is engaged inside the locking groove, which can realize the locking operation of the protective grille and facilitate disassembly and assembly.

[0020] In a preferred embodiment, a fixing screw is fixedly installed on the upper surface of the second mounting plate, the weight plate is sleeved on the outside of the fixing screw, and a fixing nut is threaded on the outer surface of the fixing screw. The fixing nut is fitted to the upper surface of the weight plate at the uppermost position.

[0021] By using the above method, the weight pan can be fixed and locked in place by using fixing screws and fixing nuts, thus preventing the weight pan from moving up and down.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This brake disc friction and wear performance testing device uses a motor in conjunction with a rotating shaft, pulley, and belt to rotate the first mounting disc on the rotating shaft, thereby rotating the brake disc fixed on the first mounting disc. In conjunction with the friction pin installed on the pin clamp, it can perform friction and wear performance testing. The load borne by the friction pin can be adjusted by increasing or decreasing the number of weight pans, thus enabling the testing of friction and wear performance under different pressure loads.

[0024] This brake disc friction and wear performance testing device uses a ventilation fan in conjunction with a mica heating coil. The mica heating coil is used for heating, and the ventilation fan is used for cooling. This allows for testing the friction and wear performance of brake discs under different temperature environments, further improving the accuracy of test results under different conditions. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0027] Figure 3 This is a schematic diagram of the structure of the rotating shaft and mounting plate of this utility model;

[0028] Figure 4 This is a schematic diagram of the sliding column, mounting plate 2, and weight plate of this utility model;

[0029] Figure 5 This is a cross-sectional view of the end of the ventilation pipe and a schematic diagram of the dust filter screen of this utility model;

[0030] Figure 6 This is a cross-sectional view of the end of the ventilation pipe and a structural schematic diagram of the ventilation fan and protective grille of this utility model;

[0031] Figure 7 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0032] In the diagram: 1. Frame; 2. Support frame; 3. Motor; 4. Shaft; 5. Pulley; 6. Belt; 7. Mounting plate one; 8. Mounting bolt one; 9. Fixing frame; 10. Mica heating coil; 11. Sliding column; 12. Pin clamp; 13. Mounting bolt two; 14. Friction pin; 15. Mounting plate two; 16. Weight pan; 17. Ventilation duct; 18. Dust filter; 19. Ventilation fan; 20. Protective grille; 21. Dual-channel temperature controller; 22. Torque display; 23. Power supply; 24. Mounting ring; 25. Support plate; 26. Arc-shaped slider; 27. Assembly base; 28. Mounting bolt three; 29. ​​Alignment rod; 30. Limiting block; 31. Positioning ball; 32. Fixing screw; 33. Fixing nut. Detailed Implementation

[0033] Please see Figure 1-7This utility model provides a brake disc friction and wear performance testing device, including a frame 1, a support frame 2 fixedly mounted on the upper surface of the frame 1, a motor 3 fixedly mounted inside the frame 1, a rotating shaft 4 rotatably mounted on the frame 1, pulleys 5 fixedly mounted on the output shaft of the motor 3 and the outer surface of the rotating shaft 4, a belt 6 connecting the two pulleys 5, a mounting plate 7 fixedly mounted on the top of the rotating shaft 4, several mounting bolts 8 threaded on the mounting plate 7, a fixing frame 9 sleeved on the outside of the rotating shaft 4, a mica heating coil 10 fixedly mounted on the fixing frame 9, and a sliding column 1 slidably mounted on the support frame 2. 1. A pin clamp 12 is fixedly installed at the bottom of the sliding column 11. A friction pin 14 is detachably installed on the pin clamp 12. An installation plate 2 15 is fixedly installed at the top of the sliding column 11. Several weight plates 16 are provided on the upper surface of the installation plate 2 15. A ventilation pipe 17 is fixedly installed on the side of the frame 1. A dust filter 18 is detachably installed at the bottom of the ventilation pipe 17. The top of the ventilation pipe 17 is arranged facing the installation plate 1 7 and a ventilation fan 19 is fixedly installed on the inner wall of the top. A protective grille 20 is inserted into the top of the ventilation pipe 17. A dual-channel temperature control instrument 21, a torque display 22, and a power supply 23 are fixedly installed on the side of the frame 1.

[0034] By using motor 3 in conjunction with shaft 4, pulley 5, and belt 6, the mounting disc 7 on shaft 4 is rotated, thereby rotating the brake disc fixed on mounting disc 7. This, in conjunction with friction pin 14 mounted on pin clamp 12, enables friction and wear performance testing. The load on friction pin 14 can be adjusted by increasing or decreasing the number of weight pans 16, allowing for testing of friction and wear performance under different pressure loads. By using ventilation fan 19 in conjunction with mica heating coil 10, heating is achieved using mica heating coil 10, and cooling is achieved using ventilation fan 19, allowing for testing of brake disc friction and wear performance under different temperature environments, further improving the accuracy of test results under different conditions.

[0035] The pin clamp 12 is threaded with a mounting bolt 13. The pin clamp 12 and the friction pin 14 are detachably connected by the mounting bolt 13. The mounting bolt 13 allows for the assembly of the pin clamp 12 and the friction pin 14. The assembly operation is simple and not easy to loosen.

[0036] A mounting ring 24 is fixedly mounted on the outer surface of the mounting plate 7. Several support plates 25 are fixedly mounted on the upper surface of the frame 1. Arc-shaped sliders 26 are fixedly mounted on the side of the support plates 25. The arc-shaped sliders 26 are slidably mounted on the inner wall of the mounting ring 24. The mounting ring 24 is used in conjunction with the support plates 25 and the arc-shaped sliders 26. During the rotation of the mounting plate 7, the arc-shaped sliders 26 slide within the mounting ring 24, thus ensuring good rotational stability of the mounting plate 7.

[0037] Several assembly seats 27 are fixedly installed on the outer surface of the dust filter 18. Several mounting bolts 28 are threaded between the assembly seats 27 and the ventilation pipe 17. By using the assembly seats 27 in conjunction with the mounting bolts 28, the dust filter 18 can be easily disassembled and assembled. The threaded connection has good stability and is not easy to fall off.

[0038] Several alignment rods 29 are fixedly installed at the bottom of the ventilation duct 17. The assembly base 27 has alignment holes for the alignment rods 29 to be inserted. By using the alignment rods 29 in conjunction with the alignment holes, the dust filter 18 can be aligned and inserted, and the rotation operation of the mounting bolts 28 can be convenient.

[0039] Several limiting blocks 30 are fixedly installed on the outer surface of the protective grille 20. Several limiting slots are opened on the inner wall of the top of the ventilation pipe 17. The limiting blocks 30 are inserted into the inner wall of the limiting slots. By inserting the limiting blocks 30 into the limiting slots, the protective grille 20 can be conveniently installed.

[0040] A locking ball 31 is fixedly installed on the side of the limiting insert 30. The inner wall of the limiting slot is provided with a locking groove for the locking ball 31 to be inserted. After the limiting insert 30 is inserted into the limiting groove, the locking ball 31 is inserted into the locking groove, which can realize the locking operation of the protective grille 20, making it convenient to disassemble and assemble.

[0041] A fixing screw 32 is fixedly installed on the upper surface of the mounting plate 15. The weight plate 16 is sleeved on the outside of the fixing screw 32. A fixing nut 33 is installed on the threaded outer surface of the fixing screw 32. The fixing nut 33 is attached to the upper surface of the weight plate 16 at the uppermost position. By using the fixing screw 32 and the fixing nut 33, the weight plate 16 can be fixed and locked to prevent the weight plate 16 from moving up and down.

[0042] During use, the brake disc to be tested is placed on the surface of mounting plate 7, and the brake disc is fixed to mounting plate 7 using mounting bolts 8. Motor 3 is started, and pulley 5 and belt 6 drive shaft 4 to rotate. Shaft 4 drives brake disc to rotate via mounting plate 7. Friction is generated between friction pin 14 and brake disc to achieve friction and wear performance testing. During the test, a dual-channel temperature controller 21 is used for real-time temperature sensing, and a torque display 22 is used for rotational torque sensing, which is displayed in real-time on an external computer. Different load pressures can be adjusted by unscrewing the fixing nut 33 to increase or decrease the number of weight pans 16, thus allowing friction pin 14 to bear pressure loads. The system can be adjusted, including temperature adjustment. During adjustment, the temperature can be increased by the mica heating coil 10 or decreased by the ventilation fan 19. During the cooling process, the dust filter 18 can filter the gas drawn by the ventilation fan 19 to prevent dust from being drawn and sprayed onto the brake disc surface, thus affecting the accuracy of the test results. The protective grille 20 can isolate and protect the ventilation fan 19. When the dust filter 18 needs to be removed, unscrew the mounting bolt 28 to pull out the dust filter 18. When the protective grille 20 needs to be removed, pull the protective grille 20 to disengage the locking ball 31 from the locking groove. When the friction pin 14 needs to be removed, unscrew the mounting bolt 13 to unlock the friction pin 14.

Claims

1. A device for testing the friction and wear performance of a brake disc, characterized in that: The device includes a frame (1), a support frame (2) fixedly mounted on the upper surface of the frame (1), a motor (3) fixedly mounted inside the frame (1), a rotating shaft (4) rotatably mounted on the frame (1), pulleys (5) fixedly mounted on the output shaft of the motor (3) and the outer surface of the rotating shaft (4), a belt (6) drivingly connecting the two pulleys (5), a mounting plate (7) fixedly mounted on the top of the rotating shaft (4), a plurality of mounting bolts (8) threaded on the mounting plate (7), a fixing frame (9) sleeved on the outside of the rotating shaft (4), a mica heating coil (10) fixedly mounted on the fixing frame (9), and a sliding column (11) slidably mounted on the support frame (2). A pin clamp (12) is fixedly installed at the bottom of the frame (1), and a friction pin (14) is detachably installed on the pin clamp (12). A second mounting plate (15) is fixedly installed at the top of the sliding column (11), and several weight plates (16) are provided on the upper surface of the second mounting plate (15). A ventilation pipe (17) is fixedly installed on the side of the frame (1), and a dust filter (18) is detachably installed at the bottom of the ventilation pipe (17). The top of the ventilation pipe (17) is arranged facing the first mounting plate (7), and a ventilation fan (19) is fixedly installed on the inner wall of the top. A protective grille (20) is inserted into the top of the ventilation pipe (17). A dual-channel temperature control instrument (21), a torque display (22), and a power supply (23) are fixedly installed on the side of the frame (1).

2. The brake disc friction and wear performance testing device according to claim 1, characterized in that: The pin clamp (12) is threaded with mounting bolt two (13), and the pin clamp (12) and the friction pin (14) are detachably connected by mounting bolt two (13).

3. The brake disc friction and wear performance testing device according to claim 1, characterized in that: An installation ring (24) is fixedly installed on the outer surface of the installation plate (7), and several support plates (25) are fixedly installed on the upper surface of the frame (1). An arc-shaped slider (26) is fixedly installed on the side of the support plate (25), and the arc-shaped slider (26) is slidably installed on the inner wall of the installation ring (24).

4. The brake disc friction and wear performance testing device according to claim 1, characterized in that: Several assembly seats (27) are fixedly installed on the outer surface of the dust filter (18), and several mounting bolts (28) are threaded between the assembly seats (27) and the ventilation pipe (17).

5. The brake disc friction and wear performance testing device according to claim 4, characterized in that: A number of alignment rods (29) are fixedly installed at the bottom end of the ventilation pipe (17), and alignment holes for the alignment rods (29) are provided on the assembly base (27).

6. The brake disc friction and wear performance testing device according to claim 1, characterized in that: The outer surface of the protective grille (20) is fixedly equipped with several limiting blocks (30), and the inner wall of the top end of the ventilation pipe (17) is provided with several limiting slots, and the limiting blocks (30) are inserted into the inner wall of the limiting slots.

7. The brake disc friction and wear performance testing device according to claim 6, characterized in that: The side of the limiting plug (30) is fixedly installed with a locking ball (31), and the inner wall of the limiting slot is provided with a locking groove for the locking ball (31) to be inserted.

8. The brake disc friction and wear performance testing device according to claim 1, characterized in that: A fixing screw (32) is fixedly installed on the upper surface of the second mounting plate (15). The weight plate (16) is sleeved on the outside of the fixing screw (32). A fixing nut (33) is threaded on the outer surface of the fixing screw (32). The fixing nut (33) fits against the upper surface of the weight plate (16) at the uppermost position.

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