A friction plate running-in device

Abstract

The application discloses a friction plate running-in equipment, wherein an input shaft of a fixing tool is connected with an output shaft of a driving assembly through a quick-release shaft coupling, and an output shaft of the fixing tool is connected with an input shaft of a braking assembly through a quick-release shaft coupling; a plurality of fixing tool bearings are arranged on the input shaft and the output shaft of the fixing tool, so that the input shaft and the output shaft of the fixing tool can rotate smoothly; the driving assembly, the fixing tool and the braking assembly are installed on a guide rail bottom plate in an axial direction, and the guide rail bottom plate is fixedly installed on an operation table; a protection and heat dissipation assembly is shaded outside the driving assembly and the braking assembly, and plays a role of heat dissipation protection; the protection and heat dissipation assembly can slide in an axial direction relative to the guide rail bottom plate. The friction plate running-in equipment can be used for running-in preparation process of single-plate friction pair or multi-plate friction pair, can be used for transmission characteristic and slip torque test of a friction clutch, and can be used for life test of a tested clutch product.

Description

Technical Field

[0001] This invention relates to a friction plate break-in device, which can be used for the break-in preparation of friction plates and mating plates in friction clutches or friction brakes, and can also be used for testing the slippage torque and braking performance of friction plates and mating plates. It features versatile functionality, strong versatility, simple structure, high testing accuracy, and stable and reliable system operation. Background Technology

[0002] With the rapid development of China's space program, the number of manned spacecraft, cargo spacecraft, space stations, and various satellite missions is constantly increasing. Space exploration and experimentation require space mechanism products to operate in orbit for extended periods. Typical space mechanism products include docking mechanisms, solar panels, and antenna drive mechanisms. Space mechanism products are all precision transmission systems, and the requirements for their actuators mainly include: 1. Ensuring high-precision motion position; 2. Precise control of end-effector forces; 3. Long-term adaptability to the thermal vacuum environment of space; 4. Long-term stable and reliable operation; 5. Reducing energy consumption.

[0003] Friction clutches, as a type of passive mechanical clutch, are ideally suited for space-based mechanisms, ensuring smooth operation, overload protection of the transmission chain, and precise control of the end effector force. The core component of a friction clutch is its internal friction pair, which consists of friction plates and mating plates. The friction plates primarily include powder metallurgy friction plates, silicon carbide friction plates, and resin friction plates, while the mating plates are typically steel plates. Unlike ground-based machinery, the friction pairs of space-based friction clutches require thorough break-in and testing on the ground to ensure stable friction coefficients and stable on-orbit slippage or braking torque, thereby precisely controlling the positional and operational accuracy of the end effector. Summary of the Invention

[0004] This invention addresses the needs of friction pair preparation and testing for friction clutches or friction brakes by providing a friction plate running-in device. This device can complete the running-in process of the contact surfaces of friction plates and mating plates in single-plate or multi-plate friction pairs under atmospheric conditions. Simultaneously, the device's fixture can be installed to test the braking performance or slippage torque of friction brakes or friction clutches. It features versatile functionality, strong versatility, simple structure, high testing accuracy, and stable and reliable system operation.

[0005] The technical solution of this invention is:

[0006] A friction plate break-in device includes: an operating table, a guide rail base plate, a drive assembly, a braking assembly, a protective heat dissipation assembly, a fixing fixture, a quick-release coupling, and a break-in fixture;

[0007] The break-in fixture is set inside the fixed fixture, and friction plates and mating plates are installed inside the break-in fixture.

[0008] The input shaft of the fixed fixture is connected to the output shaft of the drive assembly via a quick-release coupling, and the output shaft of the fixed fixture is connected to the input shaft of the brake assembly via a quick-release coupling; multiple fixed fixture bearings are provided on the input and output shafts of the fixed fixture to enable the input and output shafts of the fixed fixture to rotate smoothly;

[0009] The drive assembly, fixed fixture, and braking assembly are mounted axially on the guide rail base plate, which is then fixedly mounted on the operating table.

[0010] The protective heat dissipation component covers the outside of the drive component and the braking component, and plays a role in heat dissipation protection; the protective heat dissipation component can slide axially relative to the guide rail base plate.

[0011] Preferably, the drive assembly includes: a motor mounting bracket, a motor, a diaphragm coupling, a clutch mounting bracket, a clutch, a sensor bracket, and a torque sensor;

[0012] The motor is mounted on a motor mounting bracket, the clutch is mounted on a clutch mounting bracket, and the torque sensor is mounted on a sensor bracket. The motor mounting bracket, clutch mounting bracket, and sensor bracket are mounted on the guide rail base plate.

[0013] The motor output shaft is connected to the clutch input shaft via a diaphragm coupling, and the clutch output shaft is connected to the torque sensor input shaft via a diaphragm coupling.

[0014] The input shaft of the fixed fixture is connected to the output shaft of the torque sensor via a quick-release coupling.

[0015] Preferably, the braking assembly includes: a brake mounting bracket, a brake, and an encoder;

[0016] The brake and encoder are respectively mounted on the brake mounting bracket, which is mounted on the guide rail base plate. The encoder input shaft is rigidly connected to the brake output shaft.

[0017] The output shaft of the fixed fixture is connected to the input shaft of the brake via a quick-release coupling.

[0018] Preferably, the protective heat dissipation assembly includes: a fixed protective cover, a sliding protective cover, sliding rollers, a cooling fan, and a sliding guide rail;

[0019] The fixed cover is installed on the guide rail base plate, the sliding roller is installed on the sliding cover, and the sliding guide rail is installed on the guide rail base plate. The sliding cover slides on the guide rail base plate by the sliding roller rolling along the sliding guide rail.

[0020] The cooling fan is mounted on the sliding shield.

[0021] Preferably, when the sliding cover is pushed to the brake end, the cooling fan is located above the fixed fixture. After each break-in or test is completed, the cooling fan blows air at intervals to help dissipate heat from the friction plate and the mating plate, thus shortening the break-in or test interval.

[0022] Preferably, the fixed fixture includes: a housing, a fixed fixture output shaft, a fixed fixture input shaft, a connecting assembly, and a guide key;

[0023] A set of connecting components is provided at each end of the housing. One end of the housing is connected to the input shaft of the fixed tooling through the connecting components, and the other end of the housing is connected to the output shaft of the fixed tooling through the connecting components. The output shaft and the input shaft of the fixed tooling can rotate independently relative to the axis of the end cover.

[0024] Housing fixed connection assembly;

[0025] Multiple fixed tooling bearings are respectively provided between the connecting assembly and the output shaft of the fixed tooling, and between the connecting assembly and the input shaft of the fixed tooling;

[0026] The housing is fixedly mounted on the guide rail base plate by guide keys and standard parts.

[0027] Preferably, the connecting assembly includes: an end cap, a fixed tooling bearing, a bearing end cap, a lock nut, and a transition sleeve;

[0028] The inner rings of two fixed tooling bearings are installed on the fixed tooling input shaft, the outer rings of the fixed tooling bearings are installed in the end cover cavity, and the transition sleeve is installed between the inner rings of the two fixed tooling bearings to play an axial limiting role.

[0029] The locking nut is installed on the input shaft of the fixed fixture and axially clamps the inner ring of the bearing of the fixed fixture.

[0030] The bearing end cap is installed on the end cap and clamps and fixes the outer ring of the bearing in the tooling.

[0031] Preferably, the connecting assembly includes: an end cap, a fixed tooling bearing, a bearing end cap, a lock nut, and a transition sleeve;

[0032] Two inner rings of fixed tooling bearings are mounted on the output shaft of the fixed tooling, and the outer ring of the fixed tooling bearings is mounted in the end cover cavity. A transition sleeve is mounted between the inner rings of the two fixed tooling bearings. A lock nut is mounted on the output shaft of the fixed tooling to clamp the inner ring of the fixed tooling bearings.

[0033] The bearing end cap is installed on the end cap and clamps and fixes the outer ring of the bearing in the tooling.

[0034] Preferably, a stepped structure for interlocking is provided between the housing and the end cap.

[0035] Preferably, the running-in fixture includes: a running-in fixture input shaft, a housing, a gasket, an end cover, a spring clamping plate, a clamping plate, a guide shaft, a compression spring, a running-in fixture type I bearing, a running-in fixture type II bearing, a running-in fixture output shaft, a friction plate, and a mating plate;

[0036] The running-in fixture input shaft is connected to the fixed fixture input shaft via an involute spline, and the running-in fixture output shaft is connected to the fixed fixture output shaft via an involute spline; the running-in fixture input shaft and the end cover are connected via bearings, and the end covers are connected to each other via bearings;

[0037] The output shaft and the input shaft of the running-in fixture can rotate relative to each other.

[0038] The guide shaft is installed on the pressure plate via a threaded connection. The compression spring is sleeved on the outside of the guide shaft. The two sides of the compression spring contact the spring pressure plate and the pressure plate, respectively. The compression spring is used to provide the clamping force between the friction plate and the mating plate.

[0039] The spring clamping plate and the input shaft assembly are connected by screws to the running-in tooling input shaft.

[0040] The output shaft of the running-in fixture is connected to the input shaft of the running-in fixture via a type I bearing of the running-in fixture, and the output shaft of the running-in fixture is connected to the end cover via a type II bearing of the running-in fixture.

[0041] The friction plate is mounted on the output shaft of the running-in fixture via an internal spline, and the mating plate is mounted on the inside of the housing of the input shaft assembly via an external spline.

[0042] A chuck is provided between the mating plates and the inner ring of the Type II bearing in the running-in fixture, which serves to axially position the mating plates.

[0043] The running-in tooling input shaft and housing are fixedly connected, and the housing and end cover are fixedly connected respectively;

[0044] A gasket is installed between the housing and the end cap.

[0045] The advantages of this invention compared to the prior art are:

[0046] This equipment can perform the break-in process of the contact surfaces of single-piece or multi-piece friction pairs in an atmospheric environment. After break-in, it ensures that the contact area of ​​the friction pair reaches over 80%, and its friction coefficient stabilizes at over 90%. Simultaneously, the fixed fixture of this equipment can be fitted with a friction brake or friction clutch to perform product braking performance or slippage torque testing. It features diverse functions, strong versatility, simple structure, high testing accuracy, and stable and reliable system operation. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of a friction plate running-in device according to the present invention;

[0048] Figure 2 This is a schematic diagram of a fixed fixture structure for a friction plate running-in device according to the present invention;

[0049] Figure 3 This is a schematic diagram of the running-in tooling structure of a friction plate running-in equipment according to the present invention. Detailed Implementation

[0050] The structural composition of the present invention will be further described below with reference to the accompanying drawings.

[0051] This invention discloses a friction plate running-in device, comprising: an operating table 1, a guide rail base plate 2, a drive assembly, a braking assembly, a protective heat dissipation assembly, a fixing fixture 100, a quick-release coupling 13, and a running-in fixture 200;

[0052] The break-in fixture 200 is set inside the fixed fixture 100, and friction plates 212 and mating plates 213 are installed inside the break-in fixture 200.

[0053] The input shaft of the fixed fixture 100 is connected to the output shaft of the drive assembly via a quick-release coupling 13, and the output shaft of the fixed fixture 100 is connected to the input shaft of the brake assembly via a quick-release coupling 13. Multiple fixed fixture bearings 103 are provided on the input and output shafts of the fixed fixture 100, enabling the input and output shafts of the fixed fixture 100 to rotate smoothly at high speed.

[0054] The drive assembly, the fixed fixture 100, and the braking assembly are mounted axially on the guide rail base plate 2, which is fixedly mounted on the operating table 1.

[0055] The protective heat dissipation component covers the outside of the drive component and the braking component, serving a heat dissipation and protection function. The protective heat dissipation component is connected to the guide rail base plate 2, and the protective heat dissipation component can slide axially relative to the guide rail base plate 2.

[0056] The drive assembly includes: a motor mounting bracket 3, a motor 4, a diaphragm coupling 5, a clutch mounting bracket 6, a clutch 7, a sensor bracket 8, and a torque sensor 9. The motor 4 is mounted on the motor mounting bracket 3, the clutch 7 is mounted on the clutch mounting bracket 6, and the torque sensor 9 is mounted on the sensor bracket 8. The motor mounting bracket 3, the clutch mounting bracket 6, and the sensor bracket 8 are all mounted on the guide rail base plate 2. The output shaft of the motor 4 is connected to the input shaft of the clutch 7 via the diaphragm coupling 5, and the output shaft of the clutch 7 is also connected to the input shaft of the torque sensor 9 via the diaphragm coupling 5.

[0057] The braking assembly includes: a brake mounting bracket 10, a brake 11, and an encoder 12. The brake 11 is mounted on the brake mounting bracket 10, the encoder 12 is mounted on the brake mounting bracket 10, the brake mounting bracket 10 is mounted on the guide rail base plate 2, and the input shaft of the encoder 12 is rigidly connected to the output shaft of the brake 11.

[0058] The protective heat dissipation assembly includes: a fixed shield 14, a sliding shield 15, sliding rollers 16, a cooling fan 17, and a sliding guide rail 18. The fixed shield 14 is mounted on the guide rail base plate 2, the sliding rollers 16 are mounted on the sliding shield 15, and the sliding guide rail 18 is mounted on the guide rail base plate 2. The sliding shield 15 slides on the guide rail base plate 2 by the sliding rollers 16 rolling along the sliding guide rail 18. The cooling fan 17 is mounted on top of the sliding shield 15. Figure 1 For ease of demonstration, half of the fixed guard 14 and the sliding guard 15 have been removed. When disassembling or replacing the friction plate 212 and the mating plate 213, push the sliding guard 15 to one end of the motor 4, loosen the two quick-release couplings 13, and then remove the fixed fixture 100 and the running-in fixture 200 as a whole. After replacing the friction plate 212 and the mating plate 213, reinstall the fixed fixture 100 and the running-in fixture 200 as a whole onto the running-in equipment. After installation, push the sliding guard 15 to the brake 11 end. The sliding guard 15 and the fixed guard 14 mainly serve a protective function during testing. The cooling fan 17 is installed on the sliding guard 15. When the sliding guard 15 is pushed to the brake 11 end, the cooling fan 17 is located directly above the fixed fixture 100. After each running-in or testing operation, the cooling fan 17 blows air at intervals to assist in cooling the friction plate 212 and the mating plate 213, shortening the interval between running-in or testing.

[0059] The fixed fixture 100 includes: a housing 101, an end cap 102, a fixed fixture bearing 103, a bearing end cap 104, a locking nut 105, a fixed fixture output shaft 106, a fixed fixture input shaft 107, a transition sleeve 108, and a guide key 109. The fixed fixture 100 of the present invention comprises an output end cap assembly consisting of the end cap 102, the fixed fixture bearing 103, the bearing end cap 104, the locking nut 105, the fixed fixture output shaft 106, and the transition sleeve 108. The end cap 102, the fixed fixture bearing 103, the bearing end cap 104, the locking nut 105, the fixed fixture input shaft 107, and the transition sleeve 108 constitute the input end cap assembly of the fixed fixture 100. The input end cap assembly and the output end cap assembly are mounted on the housing 101. The housing 101 is fixedly mounted on the guide rail base plate 2 via the guide key 109 and standard parts.

[0060] Figure 2 This is a schematic diagram of a fixing fixture structure for a friction plate running-in device according to the present invention, wherein, Figure 2On the left side, the inner rings of two fixed tooling bearings 103 are mounted on the fixed tooling input shaft 107, and the outer rings of the fixed tooling bearings 103 are mounted in the cavity of the end cover 102. A transition sleeve 108 is installed between the inner rings of the two fixed tooling bearings 103, serving as an axial limit. A locking nut 105 is installed on the fixed tooling input shaft 107 to axially clamp the inner rings of the fixed tooling bearings 103. A bearing end cover 104 is installed on the end cover 102 to clamp the outer rings of the fixed tooling bearings 103, forming the input end cover assembly of the fixed tooling 100.

[0061] Figure 2 Two additional fixed-mount bearings 103 on the right side have their inner rings mounted on the fixed-mount output shaft 106, and their outer rings mounted inside the end cover 2 cavity. A transition sleeve 108 is installed between the inner rings of the two fixed-mount bearings 103. A locking nut 105 is installed on the fixed-mount output shaft 106 to clamp the inner ring of the fixed-mount bearing 3. A bearing end cover 104 is installed on the end cover 102, clamping the outer ring of the fixed-mount bearing 103, thus forming the output end cover assembly of the fixed-mount fixture 100. When the break-in fixture 200 is installed into the fixed-mount fixture 100, the input end cover assembly or the output end cover assembly is completely removed. After the break-in fixture 200 is installed, the input end cover assembly or the output end cover assembly is restored. The housing 101 and the end cover 102 are fixedly connected by screws. The fixed-mount output shaft 106 and the fixed-mount input shaft 107 can rotate independently relative to the axis of the end cover 102. A stepped structure for insertion fit is provided between the housing 101 and the end cover 102. Figure 2 A total of 6 fixed tooling bearings 103 were used in the process.

[0062] The break-in fixture 200 includes: a break-in fixture input shaft 201, a housing 202, a gasket 203, an end cover 204, a spring clamping plate 205, a clamping plate 206, a guide shaft 207, a compression spring 208, a break-in fixture type I bearing 209, a break-in fixture type II bearing 210, a break-in fixture output shaft 211, a friction plate 212, and a mating plate 213.

[0063] The running-in fixture 200 is installed inside the fixed fixture 100. The input shaft 201 of the running-in fixture is connected to the input shaft 107 of the fixed fixture via an involute spline, and the output shaft 211 of the running-in fixture is connected to the output shaft 106 of the fixed fixture via an involute spline. The input shaft 201 of the running-in fixture and the end cover 102 are connected by bearings, and the end cover 204 and the end cover 102 are connected by ball bearings. The output shaft 211 of the running-in fixture and the input shaft 201 of the running-in fixture can rotate relative to each other.

[0064] Figure 3This is a schematic diagram of the break-in fixture 200 of the present invention. The break-in fixture input shaft 201, housing 202, gasket 203, and end cover 204 are assembled together to form the input shaft assembly of the break-in fixture 200. The guide shaft 207 is threadedly connected to the clamping plate 206. A compression spring 208 is sleeved on the outside of the guide shaft 207, and its two sides are in contact with the spring clamping plate 205 and the clamping plate 206, respectively. The compression spring 208 is used to provide clamping force between the friction plate 212 and the mating plate 213. The spring clamping plate 205 is connected to the break-in fixture input shaft 201 of the input shaft assembly by screws to form the clamping assembly of the break-in fixture 200. Figure 3 Compression spring 208 is located in Figure 2 On the left side of the middle.

[0065] The output shaft 211 of the running-in fixture and the input shaft assembly of the running-in fixture 200 are supported and mounted via type I bearing 209 and type II bearing 210 of the running-in fixture. Friction plate 212 is mounted on the output shaft 211 via an internal spline, and mating plate 213 is mounted inside the housing 202 of the input shaft assembly via an external spline. During relative rotation between the output shaft 211 and the input shaft assembly of the running-in fixture 200, relative rotation occurs between the friction plate 212 and the mating plate 213. Under the clamping force of the compression spring 208, the contact surfaces of the friction plate 212 and the mating plate 213 engage with each other. A chuck is provided between the mating plate 213 and the inner ring of the type II bearing 210 of the running-in fixture, providing axial positioning for the mating plate 213.

[0066] The running-in tooling input shaft 201 and housing 202 are fixedly connected to each other, and the housing 202 and end cover 204 are fixedly connected respectively.

[0067] Figure 1This is a schematic diagram of a friction plate running-in device according to the present invention. The running-in fixture 200 is installed inside the fixed fixture 100, which is mounted on the guide rail base plate 2. The input shaft 107 of the fixed fixture is connected to the output shaft of the torque sensor 9 via a quick-release coupling 13, and the output shaft 106 of the fixed fixture is connected to the input shaft of the brake 11 via the quick-release coupling 13. When the device starts, the clutch 7 is locked, the brake 11 is unlocked, and the torque sensor 9 and encoder 12 are powered on and in monitoring mode. The motor 4 is powered on and rotates, sequentially driving the diaphragm coupling 5, clutch 7, torque sensor 9, quick-release coupling 13, input end assembly of fixed fixture 100, running-in fixture 200, output end assembly of fixed fixture 100, brake 11, and encoder 12 to rotate smoothly. At this time, the torque sensor 9 measures the no-load resistance torque of the running-in device, and the encoder 12 measures the no-load speed of the device. After the break-in equipment is running smoothly, the brake 11 is instantly put into a braking state upon power-up. The output shaft 211 of the break-in fixture is braked via the quick-release coupling 13 and the output assembly of the fixed fixture 100, ensuring that the friction plates 212 inside the break-in fixture 200 are braked. The mating plates 213 of the break-in fixture 200 rotate under the drive of the motor 4, thus performing break-in and testing between the friction plates 212 and the mating plates 213. After the break-in and testing are completed, the clutch 7 is instantly unlocked, disconnecting the motor 4 from the rear transmission chain of the equipment. The fixed fixture 100 and the break-in fixture 200 return to a stationary state. The brake 11 is de-energized and put into an unlocked state, and the motor 4 is de-energized and returns to a stationary state, completing this round of break-in or testing. The installation of the clutch 7 in the testing equipment effectively avoids significant impact on the transmission chain during equipment startup and braking, and also allows for rapid disengagement of the high-speed motor 4 after testing, thus enabling precise control of the break-in or testing time.

[0068] The running-in fixture 200 is installed inside the housing 101 of the fixed fixture 100. The input shaft 201 of the running-in fixture moves synchronously with the input shaft 107 of the fixed fixture, and the output shaft 211 of the running-in fixture moves synchronously with the output shaft 106 of the fixed fixture. When the input shaft 107 and the output shaft 106 of the fixed fixture rotate relative to each other, they cause the input shaft 201 and the output shaft 211 of the running-in fixture to rotate relative to each other, which in turn causes the friction plate 212 and the mating plate 213 to rotate relative to each other. The normal pressure between the friction plate 212 and the mating plate 213 generates a frictional torque between them, which achieves the effect of running-in the contact surface.

[0069] When installing the friction plate 212 and the mating plate 213, remove the spring clamping plate 205 from the input shaft 201 of the running-in fixture, and then take out the compression spring 208, guide shaft 207 and clamping plate 206 in sequence. Install the friction plate 212 on the output shaft 211 of the running-in fixture, and install the mating plate 213 inside the housing 202. Then, restore the clamping plate 206, guide shaft 207, compression spring 208, and the input shaft 201 and spring clamping plate 205 in sequence. Adjust the clamping force of the compression spring 208 by adjusting the gap between the spring clamping plate 205 and the input shaft 201 of the running-in fixture by installing screws, thereby controlling the positive pressure between the spring plate 212 and the mating plate 213.

[0070] This invention provides a friction plate break-in device that can complete the break-in process of the contact surfaces of friction plates and mating plates in single-plate or multi-plate friction pairs under atmospheric conditions. After break-in, it ensures that the contact area of ​​the friction pair reaches over 80%, and that its friction coefficient stabilizes at over 90%. Simultaneously, the device's fixture can be fitted with a friction brake or friction clutch to perform product braking performance or slippage torque testing. It features versatile functionality, strong versatility, simple structure, high testing accuracy, and stable and reliable system operation.

[0071] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make possible variations and modifications to the technical solutions of the present invention using the disclosed methods and techniques without departing from the spirit and scope of the invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the content of the technical solutions of the present invention, shall fall within the protection scope of the present invention. Where there is no conflict, the embodiments of this application and the technical features thereof can be combined with each other.

[0072] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A friction plate running-in device, characterized in that, include: Operating table (1), guide rail base plate (2), drive assembly, braking assembly, protective heat dissipation assembly, fixed fixture (100), quick-release coupling (13) and running-in fixture (200). The running-in fixture (200) is set inside the fixed fixture (100), and the running-in fixture (200) is equipped with friction plates (212) and mating plates (213). The input shaft of the fixed fixture (100) is connected to the output shaft of the drive assembly via a quick-release coupling (13), and the output shaft of the fixed fixture (100) is connected to the input shaft of the brake assembly via a quick-release coupling (13); multiple fixed fixture bearings (103) are provided on the input and output shafts of the fixed fixture (100) to enable the input and output shafts of the fixed fixture (100) to rotate smoothly; The drive assembly, the fixed fixture (100) and the braking assembly are mounted axially on the guide rail base plate (2), and the guide rail base plate (2) is fixedly mounted on the operating table (1); The protective heat dissipation component covers the outside of the drive component and the braking component, and plays a role in heat dissipation protection; the protective heat dissipation component can slide axially relative to the guide rail base plate (2); The braking assembly includes: a brake mounting bracket (10), a brake (11), and an encoder (12). The brake (11) and encoder (12) are respectively mounted on the brake mounting bracket (10), the brake mounting bracket (10) is mounted on the guide rail base plate (2), and the input shaft of the encoder (12) is rigidly connected to the output shaft of the brake (11). The output shaft of the fixed fixture (100) is connected to the input shaft of the brake (11) via a quick-release coupling (13); The fixed fixture (100) includes: housing I (101), fixed fixture output shaft (106), fixed fixture input shaft (107), connecting assembly and guide key (109); A set of connecting components is provided at both ends of the housing I (101). One end of the housing I (101) is connected to the fixed tooling input shaft (107) through the connecting components, and the other end of the housing I (101) is connected to the fixed tooling output shaft (106) through the connecting components. The fixed tooling output shaft (106) and the fixed tooling input shaft (107) can rotate independently relative to the axis of the end cover I (102). Housing I (101) is fixedly connected to the connecting assembly; Multiple fixed tooling bearings (103) are respectively provided between the connecting component and the fixed tooling output shaft (106) and between the connecting component and the fixed tooling input shaft (107). The housing I (101) is fixedly mounted on the guide rail base plate (2) by a guide key (109) and standard parts.

2. The friction plate running-in device according to claim 1, characterized in that, The drive components include: a motor mounting bracket (3), a motor (4), a diaphragm coupling (5), a clutch mounting bracket (6), a clutch (7), a sensor bracket (8), and a torque sensor (9). The motor (4) is mounted on the motor mounting bracket (3), the clutch (7) is mounted on the clutch mounting bracket (6), the torque sensor (9) is mounted on the sensor bracket (8), and the motor mounting bracket (3), the clutch mounting bracket (6) and the sensor bracket (8) are mounted on the guide rail base plate (2); The output shaft of the motor (4) is connected to the input shaft of the clutch (7) through a diaphragm coupling (5), and the output shaft of the clutch (7) is connected to the input shaft of the torque sensor (9) through a diaphragm coupling (5). The input shaft of the fixed fixture (100) is connected to the output shaft of the torque sensor (9) via a quick-release coupling (13).

3. The friction plate running-in device according to claim 1, characterized in that, The protective heat dissipation components include: a fixed shield (14), a sliding shield (15), sliding rollers (16), a cooling fan (17), and a sliding guide rail (18). The fixed cover (14) is installed on the guide rail base plate (2), the sliding roller (16) is installed on the sliding cover (15), and the sliding guide rail (18) is installed on the guide rail base plate (2). The sliding cover (15) slides on the guide rail base plate (2) by the sliding roller (16) rolling along the sliding guide rail (18). The cooling fan (17) is mounted on the sliding shield (15).

4. The friction plate running-in device according to claim 3, characterized in that, When the sliding cover (15) is pushed to the brake (11) end, the cooling fan (17) is located above the fixed fixture (100). After each break-in or test is completed, the cooling fan (17) blows air at intervals to help the friction plate (212) and the mating plate (213) dissipate heat, thus shortening the break-in or test interval.

5. A friction plate running-in device according to any one of claims 1-4, characterized in that, The connecting assembly includes: end cap I (102), fixed tooling bearing (103), bearing end cap (104), lock nut (105) and transition sleeve (108). The inner rings of two fixed tooling bearings (103) are installed on the fixed tooling input shaft (107), the outer rings of the fixed tooling bearings (103) are installed in the cavity of the end cover I (102), and the transition sleeve (108) is installed between the inner rings of the two fixed tooling bearings (103) to play an axial limiting role. The locking nut (105) is installed on the input shaft (107) of the fixed fixture and axially clamps the inner ring of the bearing (103) of the fixed fixture; The bearing end cap (104) is installed on the end cap I (102) to clamp and fix the outer ring of the tooling bearing (103).

6. The friction plate running-in device according to claim 5, characterized in that, The connecting assembly includes: end cap I (102), fixed tooling bearing (103), bearing end cap (104), lock nut (105) and transition sleeve (108). The inner rings of two fixed tooling bearings (103) are mounted on the fixed tooling output shaft (106), the outer rings of the fixed tooling bearings (103) are mounted in the cavity of end cover I (102), and the transition sleeve (108) is mounted between the inner rings of the two fixed tooling bearings (103); the locking nut (105) is mounted on the fixed tooling output shaft (106) to clamp the inner rings of the fixed tooling bearings (103); The bearing end cap (104) is installed on the end cap I (102) to clamp and fix the outer ring of the tooling bearing (103).

7. A friction plate running-in device according to any one of claims 1-4, characterized in that, A stepped structure for plug-in engagement is provided between the housing I (101) and the end cap I (102).

8. The friction plate running-in device according to claim 6, characterized in that, The break-in fixture (200) includes: break-in fixture input shaft (201), housing II (202), gasket (203), end cover II (204), spring clamping plate (205), clamping plate (206), guide shaft (207), compression spring (208), break-in fixture type I bearing (209), break-in fixture type II bearing (210), break-in fixture output shaft (211), friction plate (212), and mating plate (213); The running-in fixture input shaft (201) and the fixed fixture input shaft (107) are connected by an involute spline, and the running-in fixture output shaft (211) and the fixed fixture output shaft (106) are connected by an involute spline; the running-in fixture input shaft (201) and end cover I (102) are connected by a bearing, and the end cover II (204) and end cover I (102) are connected by a bearing; The output shaft (211) and the input shaft (201) of the running-in fixture can rotate relative to each other; The guide shaft (207) is installed on the pressure plate (206) by a threaded connection. The compression spring (208) is sleeved on the outside of the guide shaft (207). The two sides of the compression spring (208) are in contact with the spring pressure plate (205) and the pressure plate (206) respectively. The compression spring (208) is used to provide the clamping force between the friction plate (212) and the mating plate (213). The spring clamping plate (205) is connected to the running-in tooling input shaft (201) of the input shaft assembly by screws; The running-in fixture output shaft (211) and the running-in fixture input shaft (201) are connected by running-in fixture type I bearing (209), and the running-in fixture output shaft (211) and end cover II (204) are connected by running-in fixture type II bearing (210). The friction plate (212) is mounted on the output shaft (211) of the running-in fixture via an internal spline, and the mating plate (213) is mounted on the inside of the housing II (202) of the input shaft assembly via an external spline; A chuck is provided between the mating plate (213) and the inner ring of the running-in tool type II bearing (210) to provide axial positioning for the mating plate (213); The running-in tooling input shaft (201) and housing II (202) are fixedly connected, and housing II (202) and end cover II (204) are fixedly connected respectively; A gasket (203) is installed between housing II (202) and end cap II (204).

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