Wear test method and device based on high-speed precision gear transmission

Abstract

The invention relates to the technical field of gear abrasion test equipment, in particular to an abrasion test method and device based on high-speed precise gear transmission, and the device comprises a test bench which comprises a square frame, a square plate arranged at the top of the square frame and supporting rods arranged at the corners of the bottom face of the square frame. A conversion device, a swing test mechanism and a rotation test mechanism which are respectively arranged on the left side and the right side of the conversion device, and a group of transmission parts which are symmetrically arranged are also arranged in the test bench. According to the wear resistance test method and device based on high-speed precision gear transmission, the position of the movable clamp can be driven to change through the transverse block by virtue of the rotating handle, so that the test gear can be rapidly switched between a swing friction mode and a rotary meshing mode under the condition that the precision gear does not need to be disassembled, and the test efficiency is improved while a more comprehensive practical application scene is covered. The test period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of gear wear test equipment, in particular to a wear test method and device based on high-speed precision gear transmission. Background Art

[0002] The wear test based on high-speed precision gear transmission is aimed at evaluating the wear resistance of gears under high-speed operation conditions. This test simulates actual working conditions and uses a high-precision gear testing machine to conduct long-term, high-load operation tests on the gears. By measuring the wear amount of the gears and observing the wear morphology, it provides an important basis for improving the reliability and life of the gear transmission system.

[0003] The patent with application number CN202421241353.6 discloses a gear wear resistance detection device, including a base, a detection platform is fixedly connected to the upper surface of the base, two symmetrical mounting plates are fixedly connected to the upper surface of the base, a threaded rod is rotatably connected between the inner walls of the two mounting plates, a reduction motor for driving the threaded rod is fixedly connected to the outer wall of one of the mounting plates, a threaded block is threadedly connected to the outer wall of the threaded rod, an electric push rod is fixedly connected to the lower surface of the threaded block, the bottom end of the electric push rod is fixedly connected to a support plate, and the inner wall of the bottom end of the support plate is rotatably connected to a rotating rod, which can effectively move the gear to be detected to the detection area and can take it out after the detection of the gear to be detected is completed.

[0004] However, the actual working conditions of gears often need to withstand the rotational wear of continuous operation of the gearbox and the swing impact of the reciprocating load of the robot arm joints. Traditional equipment cannot realize multi-mode coupling testing in the same device, which makes it difficult for the test data to fully reflect the actual wear patterns. In addition, when switching the test mode, the gears need to be manually disassembled and the test equipment replaced, which takes up to several hours. Frequent disassembly and assembly can easily cause gear positioning deviations, affecting the test accuracy. The purchase of multiple special test equipment and supporting fixtures will also increase the company's R&D costs.

[0005] In view of this, we propose a wear resistance test method and device based on high-speed precision gear transmission. Summary of the invention

[0006] The purpose of the present invention is to provide a wear resistance test method and device based on high-speed precision gear transmission to solve the problems raised in the above background technology.

[0007] To achieve the above object, on the one hand, the present invention provides the following technical solutions: A wear-resistant test device based on high-speed precision gear transmission includes a test bench, wherein the test bench includes a square frame, a square plate arranged on the top of the square frame, and support rods arranged at the corners of the bottom surface of the square frame; Inside the test bench, there is also a conversion device, a swing test mechanism and a rotation test mechanism respectively arranged on the left and right sides of the conversion device, and a set of symmetrically arranged transmission parts; The conversion device includes a lead screw, a cross block that rotates with the lead screw, moving jigs and a double-shaft motor arranged at the front and rear ends of the cross block, and rotating parts arranged at both ends of the output shaft of the double-shaft motor. The moving jigs are used to fix precision gears; The swing test mechanism includes a rotating shaft, a docking tooth plate that reciprocates back and forth as the rotating shaft rotates, and a shaft-end worm wheel arranged at the end of the rotating shaft. When the docking tooth plate moves back and forth, a swing friction test is performed on the precision gear; The rotation test mechanism includes a pair of rotating platforms, a synchronous belt sleeved outside the pair of rotating platforms, positioning jigs and tabletop worm wheels respectively arranged above the front and rear rotating platforms, and docking gears fixed outside the positioning jigs. When the docking gears rotate, a rotation docking test is performed on the precision gears; The transmission part includes a worm and a sleeve arranged at the end of the worm. When the lead screw rotates, it drives the cross block to displace, so that the rotating parts on the output shafts at both ends of the double-shaft motor can be inserted into the interiors of a pair of sleeves respectively to transmit rotational motion.

[0008] In the technical solution of the present invention, the square plate is snap-fitted and fixed on the top opening of the square frame. A guiding groove is opened near the center of the top surface of the square plate. A vertically penetrating sliding groove is opened on the top surface of the square plate below the swing test mechanism. A pair of parallel convex strips are snap-fitted on the inner bottom surface of the square frame.

[0009] In the technical solution of the present invention, the left and right ends of the lead screw are respectively rotatably connected to the inner side walls of the left and right ends of the square frame. The cross block is threadedly connected to the lead screw, and two limiting grooves adapted to the sizes of the convex strips are opened on its bottom surface.

[0010] In the technical solution of the present invention, the moving jigs and the double-shaft motor are both fixedly connected to the outer side wall of the cross block by bolts. A turning handle is fixedly connected to the end of the lead screw by a bolt. Rotating the turning handle can drive the lead screw to rotate, so that the cross block and the moving jigs and the double-shaft motor at both ends thereof move together.

[0011] In the technical solution of the present invention, the rotating part includes an outer sleeve rod fixedly connected to the end of the output shaft of the double-shaft motor by a snap pin, a number of limiting blocks regularly distributed at the end of the outer sleeve rod, and springs adhered to the outer side walls of the limiting blocks. A square groove for placing the limiting blocks is opened at the end of the outer sleeve rod. The other ends of the springs are adhered to the inner groove walls of the square groove at the end of the outer sleeve rod.

[0012] In the technical solution of the present invention, the front and rear ends of the rotating shaft are rotatably connected to the outer side walls of the front and rear ends of the frame respectively, a bidirectional thread groove is provided on the outer side wall of the rotating shaft, and a sleeve block is sleeved on the outer side wall of the rotating shaft.

[0013] In the technical solution of the present invention, the outer sleeve block is slidably connected to the inside of the slide groove, the docking gear plate is clamped and fixed on the top surface of the outer sleeve block, and the shaft end worm gear is fixedly connected to the end position of the rotating shaft through a bayonet pin.

[0014] In the technical solution of the present invention, the rotating table is rotatably connected to the inner bottom surface of the frame, and the table worm gear and the positioning fixture are both fixedly connected to the top surface of the rotating table by bolts.

[0015] In the technical solution of the present invention, an outer sleeve is provided on the outer side of the worm, and the outer sleeve is fixedly connected to the inner bottom surface of the frame by bolts. The sleeve is welded and fixed at the end position of the worm, and a plurality of regularly distributed through grooves are provided on the outer wall of the sleeve. The spring in the rotating part pushes the limit block to extend to the inside of the through groove through its own elastic force, so that when the dual-axis motor is started, the worm is driven to rotate through the rotating part.

[0016] On the other hand, the present invention also provides a wear test method based on high-speed precision gear transmission, using the above-mentioned wear test device based on high-speed precision gear transmission, comprising the following steps: S1. First, fix the precision gear to be processed on the outside of the moving fixture in the conversion device, and install the docking gear plate and the docking gear meshing with the precision gear on the top surface of the outer sleeve block and the outside of the positioning fixture respectively; S2. At this time, the rotating part of the output shaft at the left end of the dual-axis motor is inserted into the transmission part on the left side. After the dual-axis motor is started, the output shaft drives the rotating part to rotate as a whole, and drives the worm in the transmission part on the left side to rotate; S3. After the worm rotates, it drives the shaft-end worm wheel in the swing test mechanism to rotate, and the shaft rotates together, so that the outer sleeve block moves back and forth in the area of ​​the bidirectional thread groove, and the docking tooth plate also moves back and forth together, driving the precision gear to reciprocate, so as to carry out a rapid swing friction test, and after the test, observe the friction degree of the outer side of the precision gear through the detection device; S4. Then, when the rotation docking test is required, the dual-axis motor is turned off first, and the handle is turned to drive the screw to rotate, and the cross block and the movable fixtures at both ends thereof and the dual-axis motor are moved toward the direction of the rotation test mechanism; S5. When the rotating part at the right end of the dual-axis motor is inserted into the right transmission part, the operator adjusts the position of the precision gear to make it mesh with the docking gear and stops turning the handle; S6, then, the dual-axis motor is started again to rotate the worm in the right transmission part. After the right worm rotates, the table worm wheel is driven to rotate, and the rotating table at the rear side is rotated accordingly; S7. The rotating table at the front end is driven to rotate by the synchronous belt, and the positioning fixture is driven to rotate the docking gear, which in turn drives the precision gear to rotate at high speed, so as to conduct the rotation docking test of the gear; S8. After the test is completed, the precision gear will be removed from the mobile fixture and the friction degree on the outside of the precision gear will be observed again through the testing equipment.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The wear-resistant test method and device based on high-speed precision gear transmission can change the position of the mobile fixture through the horizontal block by turning the handle, so that the test gear can be quickly switched between the swing friction and rotational meshing modes without disassembling the precision gear, covering more comprehensive practical application scenarios while shortening the test cycle.

[0018] 2. In the wear-resistant testing method and device based on high-speed precision gear transmission, the horizontal block drives the moving fixture to move, and at the same time, it also drives the position of the dual-axis motor to change. Through the cooperation of the rotating part and the transmission part, the dual-axis motor can respectively drive the internal structures of the swing test mechanism and the rotation test mechanism to move, thereby reducing the cost of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structural section of the test bench in the present invention; Figure 4 It is a structural schematic diagram of the conversion device in the present invention; Figure 5 It is a structural schematic diagram of the rotating part in the present invention; Figure 6 It is a structural schematic diagram of the swing test mechanism in the present invention; Figure 7 It is a structural schematic diagram of the rotation test mechanism in the present invention; Figure 8 It is a structural schematic diagram of the transmission part in the present invention; Description of reference numerals: 100, test bench; 110, square frame; 120, square plate; 121, guide groove; 122, slide groove; 130, convex strip; 140, support rod; 200, conversion device; 210, lead screw; 220, horizontal block; 221, limit slot; 230, mobile fixture; 240, double-axis motor; 250, rotating part; 251, outer sleeve rod; 252, limit block; 253, spring; 260, rotating handle; 300, swing test mechanism; 310, rotating shaft; 311, bidirectional thread groove; 320, outer sleeve block; 330, docking gear plate; 340, shaft end worm gear; 400, rotating test mechanism; 410, rotating table; 420, synchronous belt; 430, table worm gear; 440, positioning fixture; 450, docking gear; 500, transmission part; 510, worm; 520, sleeve; 521, through slot; 530, outer coat rack. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 - Figure 8 As shown, this embodiment provides a technical solution: The wear-resistant testing device based on high-speed precision gear transmission includes a test bench 100 , which includes a square frame 110 , a square plate 120 arranged on the top of the square frame 110 , and a support rod 140 arranged at the bottom corner of the square frame 110 .

[0022] In this embodiment, Figure 2-Figure 3 As shown, the test bench 100 is further provided with a conversion device 200 , a swing test mechanism 300 and a rotation test mechanism 400 respectively arranged on the left and right sides of the conversion device 200 , and a group of symmetrically arranged transmission parts 500 .

[0023] Specifically, the square plate 120 is clamped and fixed on the top opening of the square frame 110, a guide groove 121 is opened near the center of the top surface of the square plate 120, a vertically penetrating slide groove 122 is opened on the top surface of the square plate 120 below the swing test mechanism 300, and a pair of parallel convex strips 130 are clamped on the inner bottom surface of the square frame 110.

[0024] Furthermore, the square frame 110, square plate 120 and support rod 140 are used to ensure the strength of the overall structure of the test bench 100, the guide groove 121 and the protrusion 130 are used to limit the movement range of the internal structure of the conversion device 200, and the slide groove 122 is used to limit the movement range of the internal structure of the swing test mechanism 300.

[0025] In this embodiment, Figure 4-Figure 5 As shown, the conversion device 200 includes a screw rod 210, a horizontal block 220 that rotates with the screw rod 210, a movable clamp 230 and a dual-axis motor 240 arranged at the front and rear ends of the horizontal block 220, and a rotating part 250 arranged at both ends of the output shaft of the dual-axis motor 240. The movable clamp 230 is used to fix the precision gear.

[0026] Specifically, the left and right ends of the screw rod 210 are rotatably connected to the inner side walls of the left and right ends of the frame 110 respectively, the cross block 220 is threadedly connected to the screw rod 210 and has two limiting grooves 221 on its bottom surface that match the size of the convex strip 130.

[0027] Furthermore, the movable clamp 230 and the dual-axis motor 240 are fixedly connected to the outer wall of the horizontal block 220 by bolts, and the end of the screw rod 210 is fixedly connected to the handle 260 by bolts. Rotating the handle 260 can drive the screw rod 210 to rotate, so that the horizontal block 220 and the movable clamps 230 and the dual-axis motor 240 at both ends thereof are displaced together.

[0028] Furthermore, the rotating part 250 includes an outer rod 251 fixedly connected to the end of the output shaft of the dual-axis motor 240 by a pin, a plurality of limit blocks 252 regularly distributed at the end of the outer rod 251, and a spring 253 adhered to the outer wall of the limit block 252. A square groove for placing the limit block 252 is opened at the end of the outer rod 251, and the other end of the spring 253 is adhered to the inner groove wall of the square groove at the end of the outer rod 251.

[0029] Furthermore, by turning the handle 260, the screw rod 210 is driven to rotate, and the cross block 220 is moved on the inner bottom surface of the frame 110, so that the movable clamp 230 and the dual-axis motor 240 are moved together with the cross block 220. The movable clamp 230 fixes the precision gear through an external pneumatic structure. After the dual-axis motor 240 is started, it is used to drive the rotating part 250 to rotate as a whole.

[0030] In this embodiment, Figure 6 As shown, the swing test mechanism 300 includes a rotating shaft 310, a docking gear plate 330 that reciprocates back and forth as the rotating shaft 310 rotates, and a shaft end worm gear 340 disposed at the end of the rotating shaft 310. When the docking gear plate 330 moves back and forth, a swing friction test is performed on the precision gear.

[0031] Specifically, the front and rear ends of the rotating shaft 310 are rotatably connected to the outer side walls of the frame 110 , respectively. A bidirectional thread groove 311 is provided on the outer side wall of the rotating shaft 310 , and a sleeve block 320 is sleeved on the outer side wall of the rotating shaft 310 .

[0032] Furthermore, the outer sleeve block 320 is slidably connected to the inside of the slide groove 122, the docking gear plate 330 is fixedly engaged with the top surface of the outer sleeve block 320, and the shaft end worm gear 340 is fixedly connected to the end position of the rotating shaft 310 through a bayonet pin.

[0033] Furthermore, after the shaft end worm wheel 340 rotates, the rotating shaft 310 rotates together, and then the outer sleeve block 320 reciprocates back and forth on the outside of the bidirectional thread groove 311, so that the docking gear plate 330 reciprocates with the outer sleeve block 320 and drives the precision gear to perform a swing friction test.

[0034] In this embodiment, Figure 7 As shown, the rotation test mechanism 400 includes a pair of rotating tables 410, a synchronous belt 420 sleeved on the outside of the pair of rotating tables 410, a positioning fixture 440 and a table worm gear 430 respectively arranged above the rotating tables 410 at the front and rear ends, and a docking gear 450 fixed on the outside of the positioning fixture 440. When the docking gear 450 rotates, a rotation docking test is performed on the precision gear.

[0035] Specifically, the rotating table 410 is rotatably connected to the inner bottom surface of the frame 110 , and the table worm gear 430 and the positioning fixture 440 are both fixedly connected to the top surface of the rotating table 410 by bolts.

[0036] Furthermore, when the table worm gear 430 rotates, it drives the rotating table 410 below to rotate, and through the synchronous belt 420, drives another rotating table 410 to rotate together, so that the central axis of the positioning fixture 440 used to fix the docking gear 450 rotates, and the rotating docking gear 450 cooperates with the precision gear to perform a rotational docking test.

[0037] In this embodiment, Figure 8 As shown, the transmission part 500 includes a worm 510 and a sleeve 520 arranged at the end of the worm 510. When the screw 210 rotates, it drives the cross block 220 to move, so that the rotating parts 250 on the output shafts at both ends of the dual-axis motor 240 can be respectively inserted into the inside of a pair of sleeves 520 to transmit the rotational motion.

[0038] Specifically, the outer side of the worm 510 is provided with an outer sleeve frame 530, and the outer sleeve frame 530 is fixedly connected to the inner bottom surface of the frame 110 by bolts. The sleeve 520 is welded and fixed to the end position of the worm 510. A plurality of regularly distributed through grooves 521 are opened on the outer wall of the sleeve 520. The spring 253 in the rotating part 250 pushes the limit block 252 to extend to the inside of the through groove 521 through its own elastic force, so that when the dual-axis motor 240 is started, the worm 510 is driven to rotate through the rotating part 250.

[0039] Furthermore, after the outer sleeve 251 is inserted into the sleeve 520, the limit block 252 will extend to the inside of the through slot 521 under the elastic force of the spring 253. The outer sleeve 251 drives the worm 510 in the transmission part 500 to rotate along with the rotation of the dual-axis motor 240, and the outer sleeve frame 530 is used to provide a rotating platform for the worm 510.

[0040] The present invention also provides a wear test method based on high-speed precision gear transmission, using the above-mentioned wear test device based on high-speed precision gear transmission, which includes the following steps when used: S1. First, fix the precision gear to be processed on the outside of the moving fixture 230 in the conversion device 200, and install the docking gear plate 330 and the docking gear 450 meshing with the precision gear on the top surface of the outer sleeve block 320 and the outside of the positioning fixture 440 respectively; S2. At this time, the rotating part 250 of the output shaft at the left end of the dual-axis motor 240 is inserted into the transmission part 500 on the left side. After the dual-axis motor 240 is started, the output shaft drives the rotating part 250 to rotate as a whole, thereby driving the worm 510 in the left transmission part 500 to rotate; S3, after the worm 510 rotates, it drives the shaft end worm wheel 340 in the swing test mechanism 300 to rotate, and the rotating shaft 310 rotates together, so that the outer sleeve block 320 moves back and forth in the area of ​​the bidirectional thread groove 311, and the docking tooth plate 330 also moves back and forth together, driving the precision gear to reciprocate, so as to perform a rapid swing friction test, and after the test, the friction degree of the outer side of the precision gear is observed through the detection device; S4. Then, when the rotation docking test is required, the dual-axis motor 240 is turned off first, and the handle 260 is turned to drive the screw rod 210 to rotate, so that the horizontal block 220 and the movable fixtures 230 at both ends thereof and the dual-axis motor 240 move toward the direction of the rotation test mechanism 400; S5, when the rotating part 250 at the right end of the dual-axis motor 240 is inserted into the right transmission part 500, the operator adjusts the position of the precision gear to make it mesh with the docking gear 450, and stops turning the handle 260; S6, then, the dual-axis motor 240 is started again to rotate the worm 510 in the right transmission part 500. After the right worm 510 rotates, the table worm wheel 430 is driven to rotate, and the rotating table 410 at the rear side is rotated accordingly; S7, the rotating table 410 at the front end is driven to rotate by the synchronous belt 420, and the positioning fixture 440 drives the docking gear 450 to rotate, thereby driving the precision gear to rotate at a high speed, so as to perform a rotation docking test of the gears; S8. Subsequently, after the test is completed, the precision gear is removed from the mobile fixture 230, and the friction degree of the outer side of the precision gear is observed again through the detection equipment.

[0041] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A wear-resistant test device based on high-speed precision gear transmission, comprising a test bench, wherein the test bench comprises a square frame, a square plate arranged on the top of the square frame, and support rods arranged at the corners of the bottom surface of the square frame; Features: The test bench is also provided with a conversion device, a swing test mechanism and a rotation test mechanism respectively arranged on the left and right sides of the conversion device, and a group of symmetrically arranged transmission parts; The conversion device includes a screw, a horizontal block rotating with the screw, a mobile fixture and a dual-axis motor arranged at the front and rear ends of the horizontal block, and a rotating part arranged at the two ends of the output shaft of the dual-axis motor, and the mobile fixture is used to fix the precision gear; The swing test mechanism includes a rotating shaft, a docking toothed plate that reciprocates forward and backward as the rotating shaft rotates, and a shaft-end worm gear disposed at the end of the rotating shaft. When the docking toothed plate moves forward and backward, a swing friction test is performed on the precision gear. The rotation test mechanism includes a pair of rotating tables, a synchronous belt sleeved on the outside of the pair of rotating tables, a positioning fixture and a table worm gear respectively arranged above the rotating tables at the front and rear ends, and a docking gear fixed on the outside of the positioning fixture. When the docking gear rotates, a rotation docking test is performed on the precision gear; The transmission part includes a worm and a sleeve arranged at the end of the worm. When the screw rotates, it drives the cross block to move, so that the rotating parts on the output shafts at both ends of the dual-axis motor can be inserted into a pair of sleeves respectively to transmit the rotational motion.

2. The wear-resistant testing device based on high-speed precision gear transmission according to claim 1 is characterized in that: The square plate is clamped and fixed on the top opening of the square frame. A guide groove is provided on the top surface of the square plate near the center. A sliding groove that passes through the top and bottom is provided below the swing test mechanism. A pair of parallel convex strips are clamped on the inner bottom surface of the square frame.

3. The wear-resistant testing device based on high-speed precision gear transmission according to claim 2 is characterized in that: The left and right ends of the screw rod are rotatably connected to the inner side walls of the left and right ends of the frame respectively; the cross block is threadedly connected to the screw rod and has two limiting grooves matched with the size of the convex strips on its bottom surface.

4. The wear-resistant testing device based on high-speed precision gear transmission according to claim 3 is characterized in that: The movable clamp and the dual-axis motor are both fixedly connected to the outer wall of the horizontal block by bolts, and the end of the screw rod is fixedly connected to a turning handle by bolts. Rotating the turning handle can drive the screw rod to rotate, so that the horizontal block and the movable clamps and dual-axis motors at both ends thereof are displaced together.

5. The wear-resistant testing device based on high-speed precision gear transmission according to claim 4 is characterized in that: The rotating part includes an outer rod fixedly connected to the end of the output shaft of the dual-axis motor by a pin, a plurality of limit blocks regularly distributed at the end of the outer rod, and a spring adhered to the outer side wall of the limit block. A square groove for placing the limit block is opened at the end of the outer rod, and the other end of the spring is adhered to the inner side groove wall of the square groove at the end of the outer rod.

6. The wear-resistant testing device based on high-speed precision gear transmission according to claim 5 is characterized in that: The front and rear ends of the rotating shaft are rotatably connected to the outer side walls of the front and rear ends of the square frame respectively. The outer side wall of the rotating shaft is provided with a bidirectional thread groove, and the outer side wall of the rotating shaft is sleeved with a jacket block.

7. The wear-resistant testing device based on high-speed precision gear transmission according to claim 6 is characterized in that: The outer sleeve block is slidably connected to the inside of the slide groove, the docking gear plate is clamped and fixed on the top surface of the outer sleeve block, and the shaft end worm gear is fixedly connected to the end position of the rotating shaft through a bayonet pin.

8. The wear-resistant testing device based on high-speed precision gear transmission according to claim 7 is characterized in that: The rotating table is rotatably connected to the inner bottom surface of the frame, and the table worm gear and the positioning fixture are both fixedly connected to the top surface of the rotating table by bolts.

9. The wear-resistant testing device based on high-speed precision gear transmission according to claim 8 is characterized in that: An outer sleeve is provided on the outer side of the worm, and the outer sleeve is fixedly connected to the inner bottom surface of the frame by bolts. The sleeve is welded and fixed to the end position of the worm, and a plurality of regularly distributed through grooves are provided on the outer wall of the sleeve. The spring in the rotating part pushes the limit block to extend to the inside of the through groove through its own elastic force, so that when the dual-axis motor is started, the worm is driven to rotate through the rotating part.

10. A wear test method based on high-speed precision gear transmission, using the wear test device based on high-speed precision gear transmission according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, fix the precision gear to be processed on the outside of the moving fixture in the conversion device, and install the docking gear plate and the docking gear meshing with the precision gear on the top surface of the outer sleeve block and the outside of the positioning fixture respectively; S2. At this time, the rotating part of the output shaft at the left end of the dual-axis motor is inserted into the transmission part on the left side. After the dual-axis motor is started, the output shaft drives the rotating part to rotate as a whole, and drives the worm in the transmission part on the left side to rotate; S3. After the worm rotates, it drives the shaft-end worm wheel in the swing test mechanism to rotate, and the shaft rotates together, so that the outer sleeve block moves back and forth in the area of ​​the bidirectional thread groove, and the docking tooth plate also moves back and forth together, driving the precision gear to reciprocate, so as to carry out a rapid swing friction test, and after the test, observe the friction degree of the outer side of the precision gear through the detection device; S4. Then, when the rotation docking test is required, the dual-axis motor is turned off first, and the handle is turned to drive the screw to rotate, and the cross block and the movable fixtures at both ends thereof and the dual-axis motor are moved toward the direction of the rotation test mechanism; S5. When the rotating part at the right end of the dual-axis motor is inserted into the right transmission part, the operator adjusts the position of the precision gear to make it mesh with the docking gear and stops turning the handle; S6, then, the dual-axis motor is started again to rotate the worm in the right transmission part. After the right worm rotates, the table worm wheel is driven to rotate, and the rotating table at the rear side is rotated accordingly; S7. The rotating table at the front end is driven to rotate by the synchronous belt, and the positioning fixture is driven to rotate the docking gear, which in turn drives the precision gear to rotate at high speed, so as to conduct the rotation docking test of the gear; S8. After the test is completed, the precision gear will be removed from the mobile fixture and the friction degree on the outside of the precision gear will be observed again through the testing equipment.

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