Experimental device for measuring friction torque of space high-speed bearing

Abstract

The invention provides a space high-speed bearing friction torque measurement experiment device. The device comprises an experiment platform; the main shaft rotation driving mechanism comprises an air floating rotary table arranged above the experiment platform, the air floating rotary table is driven to drive a main shaft to rotate, and the main shaft is selected from a bearing outer ring rotation main shaft or a bearing inner ring rotation main shaft; the testing tool comprises a main shaft, a force loading sleeve and a force arm flange; the force loading lifting mechanism comprises a permanent magnet bearing rotary table, a pressure sensor, an upper mounting platform, an upper guide rail and a lower mounting platform, and is used for realizing accurate axial load adjustment of the tested bearing; and the torque measuring mechanism is used for measuring the friction torque of the measured bearing through a force arm flange. The experimental device can accurately measure the friction torque of high-speed bearings of various specifications under the condition of inner ring rotation or outer ring rotation under the vacuum environment at different rotating speeds and different axial loads.

Description

Technical Field

[0001] The present application belongs to the technical field of bearing testing, and in particular relates to a spatial high-speed bearing friction torque measurement experimental device. Background Art

[0002] Bearings are widely used in the automotive, aerospace, metallurgy and other industries. They are essential key parts for aerospace vehicles and spacecraft, and are closely related to the development and progress of aerospace. The application of bearings in aerospace requires high reliability, high durability, low friction and the ability to adapt to extreme environments. They play a vital role in ensuring the performance, stability and safety of flight. Compared with civilian bearings, space bearings have stringent requirements in terms of accuracy, sensitivity, speed, temperature, vacuum, radiation, etc. In order to meet these requirements, corresponding technical measures must be taken in the design, material selection, processing, testing, testing, maintenance and other aspects of bearings. Among them, the dynamic friction torque of the bearing is an important parameter in the bearing, which is manifested externally as different resistance torque size and fluctuation, which has a direct impact on the performance, life and energy efficiency of the bearing. Therefore, the invention of a space high-speed bearing friction torque measurement experimental platform, accurately grasping the dynamic friction torque of the space bearing under different axial loads and speeds has important scientific significance and engineering use value for improving the stable operation of aircraft and spacecraft.

[0003] In the prior art, the axial load on the bearing is applied by adding weights, etc., which cannot achieve stepless speed regulation of the axial load, and cannot accurately measure the influence of speed and load on the friction torque of the spatial bearing under high-speed optional state, thus failing to truly understand the operating conditions of the spatial rolling bearing. Summary of the invention

[0004] The main purpose of the present invention is to provide a spatial high-speed bearing friction torque measurement experimental device to solve the problem that the measurement error caused by vibration in the prior art is not effectively avoided.

[0005] In order to solve the above problems, the present invention provides a space high-speed bearing friction torque measurement experimental device, including: an experimental platform; a spindle rotation drive mechanism, the spindle rotation drive mechanism includes an air-floating turntable arranged above the experimental platform, the air-floating turntable is driven to drive the spindle to rotate, the spindle is selected from the bearing outer ring rotation spindle or the bearing inner ring rotation spindle, the bearing outer ring rotation spindle drives the measured bearing outer ring to rotate, and the bearing inner ring rotation spindle drives the measured bearing inner ring to rotate; a test tool, the test tool includes a spindle, a force loading sleeve and a force arm flange; a force loading lifting mechanism, the force loading lifting mechanism includes a permanent magnetic bearing turntable, a pressure sensor, an upper mounting platform, an upper guide rail and a lower mounting platform, the upper mounting platform and the lower mounting platform are fixedly installed at both ends of the upper guide rail, and the upper mounting platform The platform is located above the experimental platform, and the lower mounting platform is located below the experimental platform. The upper mounting platform is driven to rise and fall synchronously by driving the lower mounting platform to rise and fall. The permanent magnetic bearing turntable is installed on the upper mounting platform. The pressure sensor and the force loading sleeve are installed in sequence on the lower side of the permanent magnetic bearing turntable. The force loading sleeve is installed on the force loading sleeve. The force loading sleeve is selected from the bearing inner ring force loading sleeve or the bearing outer ring force loading sleeve. The inner ring force loading sleeve is used to apply an axial load to the inner ring of the measured bearing. The bearing outer ring force loading sleeve is used to apply an axial load to the outer ring of the measured bearing. The bearing inner ring force loading sleeve is used in conjunction with the bearing outer ring rotating spindle. The bearing outer ring force loading sleeve is used in conjunction with the bearing inner ring rotating spindle; torque measuring mechanism, the torque measuring mechanism realizes the measurement of the friction torque of the measured bearing through the force arm flange.

[0006] Furthermore, the above-mentioned spatial high-speed bearing friction torque measurement experimental device also includes a vacuum cover, which is combined with the experimental platform to form a containing space, and the containing space includes the spindle rotation drive mechanism and the force loading lifting mechanism located above the experimental platform, as well as the test tooling and the torque measurement mechanism.

[0007] Furthermore, the combination of the vacuum cover and the experimental platform is sealed by means of concave and convex grooves and a sealing ring, and the vacuum cover and the experimental platform are pressed together by a locking buckle; the contact parts between the mechanism in the accommodating space and the experimental platform are sealed by means of concave and convex grooves and a sealing rubber ring.

[0008] Furthermore, the vacuum cover is provided with an aviation plug interface for realizing communication and power supply with the device in the accommodation space through wires and cables, and the vacuum cover is provided with an air pump connection port for realizing a vacuum environment.

[0009] Furthermore, the spindle rotation drive mechanism further includes an air-bearing turntable drive motor disposed below the experimental platform, the spindle is mounted on the air-bearing turntable, and the air-bearing turntable drives the spindle to rotate under the drive of the air-bearing turntable drive motor.

[0010] Furthermore, the air-floating turntable is concentrically fixed in a preset circular hole of the experimental platform, and the air-floating turntable driving motor is connected to and fixed to the air-floating bearing inside the air-floating turntable through the outer shell and the stator mounting sleeve.

[0011] Furthermore, the above-mentioned force-loaded lifting mechanism also includes a lower guide rail, an elevator, an elevator drive motor and a lifting component support rod. The elevator and the lower guide rail are installed under the lower mounting platform. The elevator is driven by the elevator drive motor to realize the lifting and lowering control of the lower mounting platform. The lower guide rail is used to support the lower mounting platform, and the lifting component support rod is used to support the elevator platform for installing the elevator drive motor and the elevator.

[0012] Furthermore, the upper guide rail passes through the experimental platform and slides via a slide rail fixed on the experimental platform.

[0013] Furthermore, the above-mentioned torque measuring mechanism includes a friction torque sensor, a friction torque sensor lifting drive motor and a friction torque sensor lifting assembly. The friction torque sensor lifting drive motor is connected to the screw rod of the friction torque sensor lifting assembly through a coupling. The friction torque sensor is installed on the installation platform of the friction torque sensor lifting assembly. The friction torque sensor lifting drive motor drives the friction torque sensor lifting assembly to lift and lower to adjust the height of the friction torque sensor to touch the preset position on the lever arm flange, thereby realizing the measurement of the friction torque of the measured bearing.

[0014] Furthermore, the above-mentioned spatial high-speed bearing friction torque measurement experimental device also includes a chassis and a display. The chassis includes a processor, and the processor realizes the control of the spatial high-speed bearing friction torque measurement experimental device. The function of the display includes displaying the measurement data of the friction torque sensor and the pressure sensor.

[0015] By applying the scheme of the present invention, a space high-speed bearing friction torque measurement experimental device is provided, which can not only maintain the stability of the bearing speed during the experiment, but also realize different speeds and continuously variable bearing loads. At the same time, the load can be applied to the inner ring or outer ring of the bearing by replacing the fixture. The experimental results are relatively reliable, which is convenient for evaluating the comprehensive performance of space rolling bearings and provides key scientific and technological basis and experimental platform support for high-end bearings in my country's aerospace field. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following will further explain the above characteristics, technical features, advantages and implementation methods of the present application in a clear and understandable manner through the description of the preferred embodiments and in combination with the accompanying drawings. The following drawings are only intended to illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0017] Figure 1A schematic diagram of the structure of a spatial high-speed bearing friction torque measurement experimental device provided by an embodiment of the present application is shown;

[0018] Figure 2 A schematic diagram of loading the inner ring of a tested bearing by rotating the outer ring is shown in one embodiment of the present application;

[0019] Figure 3 A schematic diagram of rotating the inner ring of a tested bearing outer ring and loading it is shown in one embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described with reference to the accompanying drawings.

[0021] The technical solution provided by the present application solves the problem that measurement errors caused by vibrations are not effectively avoided.

[0022] A space high-speed bearing friction torque measurement experimental device, such as Figure 1-3 As shown, the space high-speed bearing friction torque measurement experimental device includes: an experimental platform 26, a spindle rotation drive mechanism, a test fixture, a force loading lifting mechanism and a torque measurement mechanism. The spindle rotation drive mechanism includes an air-floating turntable 5 arranged above the experimental platform 26. The air-floating turntable 5 is driven to drive the spindle to rotate. The spindle is selected from the bearing outer ring rotation spindle 9 or the bearing inner ring rotation spindle 25. The bearing outer ring rotation spindle 9 drives the outer ring of the measured bearing 23 to rotate, and the bearing inner ring rotation spindle 25 drives the inner ring of the measured bearing 23 to rotate; the test fixture, the test fixture includes the spindle, the force loading sleeve and the lever arm flange 10; the force loading lifting mechanism includes a permanent magnetic bearing turntable 8, a pressure sensor 7, an upper mounting platform 3, an upper guide rail 15 and a lower mounting platform 16. The upper mounting platform 3 and the lower mounting platform 16 are fixedly installed at both ends of the upper guide rail 15. The upper mounting platform 3 is located above the experimental platform 26, and the lower mounting platform 16 is located below the experimental platform 26. The lower mounting platform 16 is driven to rise and fall, thereby driving the upper mounting platform 3 to rise and fall synchronously. The permanent magnetic bearing turntable 8 is installed on the upper mounting platform 3. The pressure sensor 7 and the force loading sleeve are installed in sequence on the lower side of the permanent magnetic bearing turntable 8. The force loading sleeve is selected from the bearing inner ring force loading sleeve 6 or the bearing outer ring force loading sleeve 24. The inner ring force loading sleeve 6 is used to apply an axial load to the inner ring of the measured bearing 23. The bearing outer ring force loading sleeve 24 is used to apply an axial load to the outer ring of the measured bearing 23. The bearing inner ring force loading sleeve 6 is used in conjunction with the bearing outer ring rotating spindle 9, and the bearing outer ring force loading sleeve 24 is used in conjunction with the bearing inner ring rotating spindle 25; a torque measuring mechanism, the torque measuring mechanism realizes the measurement of the friction torque of the measured bearing 23 through the force arm flange 10.

[0023] The space high-speed bearing friction torque measurement experimental device of the present application realizes accurate axial loading by including a pressure sensor 7, a force loading lifting mechanism and an air-floating turntable 5. When the force loading lifting mechanism drives the loading sleeve to contact the inner ring or outer ring of the measured bearing 23, the pressure sensor 7 reads a certain numerical feedback, the lifting rod continues to descend, and the axial force is transmitted to the measured bearing 23 through the permanent magnetic bearing turntable 8, the pressure sensor 7, and the force loading sleeve until the feedback of the pressure sensor 7 reaches the set force value.

[0024] The spatial high-speed bearing friction torque measurement experimental device of the present application includes two bearing units, namely, the permanent magnetic bearing in the permanent magnetic bearing turntable 8 and the air bearing of the air bearing turntable 5. Due to the rotation of the supporting main shaft, the air bearing and the permanent magnetic bearing are used for high-speed rotation, which reduces or eliminates the influence of factors such as vibration on the measurement accuracy. By combining the permanent magnetic bearing turntable 8 with the axial loading, the continuous adjustment of the axial loading force is realized, and the permanent magnetic bearing turntable 8 can be used to rotate simultaneously with the measured bearing 23 to eliminate the error caused by the axial load, and the friction caused by it has almost no effect on the detection result.

[0025] In addition, the present application can realize two different detection methods of the tested bearing 23 by adjusting the test fixture. The bearing inner ring force loading sleeve 6 is used in conjunction with the bearing outer ring rotating spindle 9 to realize the outer ring rotating method to apply axial force to the inner ring; the bearing outer ring force loading sleeve 24 is used in conjunction with the bearing inner ring rotating spindle 25 to apply axial force to the outer ring by rotating the inner ring, which meets the detection methods under different working conditions. And by adjusting the spindle and the force loading sleeve, the friction torque of bearings of different models can be detected.

[0026] In one embodiment, in order to measure the friction torque of the bearing 23 under a certain vacuum environment, the space high-speed bearing friction torque measurement experimental device also includes a vacuum cover 4, which is combined with the experimental platform 26 to form a storage space, and the storage space includes the spindle rotation drive mechanism and the force loading lifting mechanism located above the experimental platform 26, as well as the test fixture and the torque measurement mechanism. Preferably, the combination of the vacuum cover 4 and the experimental platform 26 adopts a concave and convex groove plus a sealing ring to achieve sealing, and the vacuum cover 4 and the experimental platform 26 are pressed together by the locking buckle 2; the contact part between the mechanism in the storage space and the experimental platform 26 is sealed by a concave and convex groove plus a sealing rubber ring.

[0027] In one embodiment, the vacuum cover 4 is provided with an aviation plug interface for realizing communication and power supply with the device in the accommodation space through wires and cables, and the vacuum cover 4 is provided with an air pump connection port for realizing a vacuum environment.

[0028] In one embodiment, the spindle rotation drive mechanism preferably also includes an air-floating turntable drive motor 14 disposed below the experimental platform 26 , and the spindle is mounted on the air-floating turntable 5 . Driven by the air-floating turntable drive motor 14 , the air-floating turntable drives the spindle to rotate.

[0029] In one embodiment, the air-floating turntable 5 is preferably concentrically fixed in a preset circular hole of the experimental platform 26, and the air-floating turntable drive motor 14 is connected to and fixed to the air-floating bearing inside the air-floating turntable 5 through the housing and the stator mounting sleeve.

[0030] In one embodiment, the preferred force-loaded lifting mechanism also includes a lower guide rail 17, an elevator 18, an elevator drive motor 19 and a lifting component support rod 21. The elevator 18 and the lower guide rail 17 are installed below the lower mounting platform 16. The elevator drive motor 19 drives the elevator 18 to realize the lifting and lowering control of the lower mounting platform. The lower guide rail 17 is used to support the lower mounting platform 16, and the lifting component support rod 21 is used to support the elevator platform for installing the elevator drive motor 19 and the elevator 18.

[0031] In one embodiment, the upper guide rail 15 preferably passes through the test platform 26 and slides via a slide rail fixed on the test platform 26 .

[0032] In one embodiment, the torque measuring mechanism preferably includes a friction torque sensor 11, a friction torque sensor lifting drive motor 12 and a friction torque sensor lifting assembly 13. The friction torque sensor lifting drive motor 12 is connected to the screw rod of the friction torque sensor lifting assembly 13 through a coupling. The friction torque sensor 11 is installed on the installation platform of the friction torque sensor lifting assembly 13. The friction torque sensor lifting drive motor 12 drives the friction torque sensor lifting assembly 13 to lift and lower to adjust the height of the friction torque sensor 11 to touch the preset position on the lever arm flange 10, thereby realizing the measurement of the friction torque of the measured bearing 23.

[0033] In one embodiment, the spatial high-speed bearing friction torque measurement experimental device preferably also includes a chassis 22 and a display 1, the chassis 22 includes a processor, the processor realizes the control of the spatial high-speed bearing friction torque measurement experimental device, and the function of the display 1 includes displaying the measurement data of the friction torque sensor 11 and the pressure sensor 7.

[0034] The present application will be described in detail below in conjunction with the embodiments.

[0035] The force loading lifting platform adjusts the height of the upper installation platform 3 and the permanent magnetic bearing turntable 8 through the lift drive motor 19. When the position is raised to the highest point, the measured bearing 23 is replaced and the measurement method is selected. If the outer ring of the bearing is rotated, the axial force load is applied to the inner ring, and the bearing inner ring force loading sleeve 6 and the bearing outer ring rotating spindle 9 are replaced; if the inner ring of the bearing is rotated, the axial force load is applied to the outer ring, and the bearing outer ring force loading sleeve 24 and the bearing inner ring rotating spindle 25 are replaced. Adjust the height of the permanent magnetic bearing turntable 8 and the upper installation platform 3 so that the bearing axial load loading sleeve is pressed against the measured bearing 23, and the pressure sensor 7 is used to feedback the magnitude of the axial force in real time. When the specified axial load is reached, the motor state is maintained at this time.

[0036] Furthermore, the space high-speed bearing friction torque measurement experimental device includes a vacuum cover 4, an air pump, a locking buckle 2, and an experimental platform 26. The vacuum cover 4 and the experimental platform 26 are connected together by a rotating mechanism, and the vacuum cover 4 is fastened in the groove of the experimental platform 26 by the locking buckle 2 to achieve sealing. The vacuum cover 4 is provided with an aviation plug interface and a connection port with an air pump to realize the communication, power supply and vacuum environment between the wires and cables and the internal device. A vacuum degree sensor is configured inside the vacuum cover 4 to reflect the vacuum degree inside the space simulation device in real time.

[0037] Furthermore, the spatial high-speed bearing friction torque measurement experimental device includes an air-floating turntable 5 concentrically fixed in a preset circular hole of the experimental platform 26, which can rotate at different speeds under the action of the air-floating turntable drive motor 14. The main shaft is installed on the air-floating turntable 5 and is used to rotate the inner ring or outer ring of the measured bearing 23.

[0038] Furthermore, the torque measuring mechanism is composed of a friction torque sensor lifting drive motor 12, a friction torque sensor 11 and a friction torque sensor lifting assembly 13. The friction torque sensor lifting drive motor 12 is connected to the screw rod of the friction torque sensor lifting assembly 13 through a coupling. The friction torque sensor 11 is installed on the mounting platform of the friction torque sensor lifting assembly 13. The friction torque sensor lifting drive motor 12 drives the friction torque sensor lifting assembly 13 to lift and lower to adjust the height of the friction torque sensor 11 to touch the preset position on the lever arm flange 10, so as to realize the measurement of the friction torque of the measured bearing 23.

[0039] The friction torque sensor 11 measures the friction torque of the measured bearing 23 in the following manner: the friction torque of the measured bearing 23 is converted into friction force, and the friction force is transmitted to the friction torque sensor 11 through the lever arm of the lever arm flange 10 to give a pressure F to the friction torque sensor 11. The center distance between the friction torque sensor 11 and the measured bearing 23 is L. The friction torque of the measured bearing 23 can be calculated by the formula M=F×L.

[0040] In summary, the space high-speed bearing friction torque measurement experimental device of the present application can accurately measure the friction torque of various specifications of high-speed bearings under different speeds, different axial loads and when the inner ring rotates or the outer ring rotates in a vacuum environment, so as to facilitate the research on space rolling bearings in aircraft and spacecraft, and provide key scientific and technological basis and experimental platform support for my country's aerospace field.

[0041] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0042] The above are only illustrative specific implementations of the present application and are not intended to limit the scope of the present application. Any equivalent changes, modifications and combinations made by any technician in the field without departing from the concept and principle of the present application shall fall within the scope of protection of the present application.

Claims

1. A space high-speed bearing friction torque measurement experimental device, wherein: The space high-speed bearing friction torque measurement experimental device comprises: Experimental platform; A spindle rotation drive mechanism, the spindle rotation drive mechanism comprises an air-floating turntable arranged on the experimental platform, the air-floating turntable is driven to drive the spindle to rotate, the spindle is selected from a bearing outer ring rotation spindle or a bearing inner ring rotation spindle, the bearing outer ring rotation spindle drives the outer ring of the measured bearing to rotate, and the bearing inner ring rotation spindle drives the inner ring of the measured bearing to rotate; A test fixture, the test fixture comprising the spindle, a force loading sleeve and a lever arm flange; A force loading lifting mechanism, wherein the force loading lifting mechanism comprises a permanent magnetic bearing turntable, a pressure sensor, an upper mounting platform, an upper guide rail and a lower mounting platform, wherein the upper mounting platform and the lower mounting platform are respectively fixedly mounted at two ends of the upper guide rail, wherein the upper mounting platform is located above the experimental platform, and the lower mounting platform is located below the experimental platform, and the upper mounting platform is synchronously lifted and lowered by driving the lower mounting platform to lift and lower. The permanent magnetic bearing turntable is mounted on the upper mounting platform, and the pressure sensor and the force loading sleeve are sequentially mounted on the lower side of the permanent magnetic bearing turntable, and the force arm flange is mounted on the force loading sleeve. The force loading sleeve is selected from a bearing inner ring force loading sleeve or a bearing outer ring force loading sleeve, and the inner ring force loading sleeve is used to apply an axial load to the inner ring of the measured bearing, and the bearing outer ring force loading sleeve is used to apply an axial load to the outer ring of the measured bearing, and the bearing inner ring force loading sleeve is used in conjunction with the bearing outer ring rotating spindle, and the bearing outer ring force loading sleeve is used in conjunction with the bearing inner ring rotating spindle; A torque measuring mechanism is used to measure the friction torque of the measured bearing through the lever arm flange.

2. The space high-speed bearing friction torque measurement experimental device according to claim 1 is characterized in that: The spatial high-speed bearing friction torque measurement experimental device also includes a vacuum cover, which is combined with the experimental platform to form a containing space. The containing space includes the spindle rotation drive mechanism and the part of the force loading lifting mechanism located above the experimental platform, as well as the test fixture and the torque measurement mechanism.

3. The space high-speed bearing friction torque measurement experimental device according to claim 2 is characterized in that: The vacuum cover and the experimental platform are sealed by concave and convex grooves and sealing rings, and the vacuum cover and the experimental platform are pressed tightly by locking buckles; The contact parts of the mechanism in the accommodating space and the experimental platform are sealed by means of concave and convex grooves and sealing rubber rings.

4. The space high-speed bearing friction torque measurement experimental device according to claim 3 is characterized in that: The vacuum cover is provided with an aviation plug interface for realizing communication and power supply with the device in the accommodating space through wires and cables, and the vacuum cover is provided with an air pump connection port for realizing a vacuum environment.

5. The space high-speed bearing friction torque measurement experimental device according to claim 1 is characterized in that: The spindle rotation drive mechanism also includes an air-floating turntable drive motor disposed below the experimental platform. The spindle is mounted on the air-floating turntable. Driven by the air-floating turntable drive motor, the air-floating turntable drives the spindle to rotate.

6. The space high-speed bearing friction torque measurement experimental device according to claim 5 is characterized in that: The air-floating turntable is concentrically fixed in a preset circular hole of the experimental platform, and the air-floating turntable driving motor is connected to and fixed to the air-floating bearing inside the air-floating turntable through a housing and a stator mounting sleeve.

7. The space high-speed bearing friction torque measurement experimental device according to claim 1 is characterized in that: The force-loaded lifting mechanism also includes a lower guide rail, an elevator, an elevator drive motor and a lifting component support rod. The elevator and the lower guide rail are installed below the lower mounting platform. The elevator is driven by the elevator drive motor to realize the lifting and lowering control of the lower mounting platform. The lower guide rail is used to support the lower mounting platform, and the lifting component support rod is used to support the elevator platform on which the elevator drive motor and the elevator are installed.

8. The space high-speed bearing friction torque measurement experimental device according to claim 7 is characterized in that: The upper guide rail passes through the experimental platform and slides via a slide rail fixed on the experimental platform.

9. The space high-speed bearing friction torque measurement experimental device according to claim 1 is characterized in that: The torque measuring mechanism includes a friction torque sensor, a friction torque sensor lifting drive motor and a friction torque sensor lifting assembly. The friction torque sensor lifting drive motor is connected to the screw rod of the friction torque sensor lifting assembly through a coupling. The friction torque sensor is installed on the installation platform of the friction torque sensor lifting assembly. The friction torque sensor lifting drive motor drives the friction torque sensor lifting assembly to lift and lower to adjust the height of the friction torque sensor to touch the preset position on the force arm flange, thereby realizing the measurement of the friction torque of the measured bearing.

10. The space high-speed bearing friction torque measurement experimental device according to claim 1 is characterized in that: The spatial high-speed bearing friction torque measurement experimental device also includes a chassis and a display. The chassis includes a processor, and the processor realizes the control of the spatial high-speed bearing friction torque measurement experimental device. The function of the display includes displaying the measurement data of the friction torque sensor and the pressure sensor.

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