Comprehensive performance test system for transmission shaft of speed reducer

Abstract

The invention relates to the technical field of transmission shaft performance detection, in particular to a speed reducer transmission shaft comprehensive performance testing system which comprises a bottom frame, and a primary testing mechanism and a dynamic adding testing mechanism are sequentially arranged in the bottom frame from right to left. The output end of the first air cylinder is fixedly connected with a concave clamping frame through a push rod, a rectangular vertical frame is clamped into the concave clamping frame, a first motor is arranged in the center of one side of the vertical frame, a long frame is fixedly installed at the output end of the first motor, a second motor is arranged on the inner wall of one side of the long frame, and the output end of the second motor is sequentially connected with two sets of spiral guide rods. The two groups of spiral guide rods are arranged in a reverse thread manner; according to the invention, multi-dimensional testing functions of basic rotation speed, anti-seismic performance, axial resistance, rotation resistance and the like of the transmission shaft are integrated, comprehensive performance accurate evaluation of the transmission shaft of the speed reducer under complex working conditions is realized, and a reliable basis is provided for design optimization and quality control.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission shaft performance detection, in particular to a comprehensive performance test system for a speed reducer transmission shaft. Background Art

[0002] As a core component of the mechanical transmission system, reducers are widely used in engineering machinery, automobile manufacturing, wind power generation, industrial robots and other fields. Their technical performance directly affects the reliability, operating efficiency and service life of the equipment.

[0003] The drive shaft is a key component for transmitting power and torque in the reducer. It needs to withstand complex mechanical loads, dynamic excitations and environmental factors. The comprehensive performance is the core indicator for evaluating the overall performance of the reducer.

[0004] At present, the performance test of drive shafts in the industry mainly relies on single-function test equipment, such as the vibration detection equipment for reducer drive shafts with publication number CN216432835U. Although it can realize the vibration detection of reducer drive shafts, it is difficult to simulate complex actual loads and the test conditions are single, which easily leads to a significant gap between the test results and actual engineering requirements, and cannot accurately evaluate the reliability of the drive shaft. For this reason, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to integrate multi-dimensional testing functions such as the basic speed, seismic performance, axial resistance, and rotational resistance of the drive shaft, so as to realize accurate evaluation of the comprehensive performance of the reducer drive shaft under complex working conditions and provide a reliable basis for design optimization and quality control.

[0006] The object of the present invention can be achieved by the following technical solutions: A comprehensive performance test system for a reducer transmission shaft includes a bottom frame, wherein an initial test mechanism and a dynamic additional test mechanism are sequentially arranged inside the bottom frame from right to left;

[0007] The initial measurement mechanism includes a cylinder 1 arranged at the center of the inner wall of one side of the bottom frame, the output end of the cylinder 1 is fixedly connected to a concave card frame through a push rod, and a rectangular vertical frame is clamped inside the concave card frame. A motor 1 is arranged at the center of one side of the vertical frame, and a long frame is fixedly installed at the output end of the motor 1;

[0008] A second motor is provided on the inner wall of one side of the long frame, and the output end of the second motor is sequentially connected to two sets of spiral guide rods, which are arranged in opposite directions. The outer surfaces of the two sets of spiral guide rods are spirally sleeved with sliding frames, and the ends of the sliding frames extend to the outside of the long frame and are fixedly installed with clamping frames. The opposite surfaces of the two sets of clamping frames are provided with semi-cylindrical grooves;

[0009] The inner wall of the rear end of the bottom frame is provided with a corrugated groove, and transverse grooves are provided at both ends of the corrugated groove.

[0010] Furthermore, a circular shaft fixedly installed at the rear end center of the vertical frame moves inside one of the horizontal grooves, and a sliding shaft is fixedly installed on one side wall of the vertical frame at the upper and lower ends of the motor. The two groups of sliding shafts are respectively clamped in the inside of the slots set at the upper and lower ends of the frame body on one side of the concave card frame, and a spring damping shock-absorbing ring is commonly provided between the sliding shaft and the inner wall of the slot.

[0011] Furthermore, the dynamic measurement mechanism includes a positioning frame arranged in a concave structure, and a string rod is rotatably arranged at the center of the frame on one side of the positioning frame, and one end of the string rod extends to the outside of the positioning frame and is fixedly installed with a clamp.

[0012] Furthermore, the inner wall of the chuck is provided with several groups of slots at equal distances, and the inside of the slots are provided with several groups of inclined push pieces, and the bottom of the push pieces are hinged with a push shaft, and several groups of the push pieces extend outside the chuck and are hinged with a swivel at one end. The outside of the chuck is fixedly sleeved with a positioning ring adjacent to the swivel, and an inclined cylinder 2 is provided at the top end of the positioning ring near the swivel side, and the output end of the cylinder 2 is hinged to the side wall of the swivel through an inclined push rod.

[0013] Furthermore, a storage rod is fixedly installed at the center of the inner inner wall of the positioning frame away from the string rod side, and several groups of counterweight clamps are sleeved on the outside of the storage rod. Annular magnetic plates are fixedly installed on both sides of each group of counterweight clamps, and the two symmetrical groups of annular magnetic plates are opposite magnetic poles. Vertical grooves are provided on the inner wall of one side of the positioning frame and at the upper and lower ends of the storage rod, and lifting rods are provided horizontally through the two groups of vertical grooves.

[0014] Furthermore, one end of the two groups of lifting rods extends to the interior of the positioning frame and is fixedly installed with a wedge-shaped pick on the opposite surface. The upper and lower groups of wedge-shaped picks are mirror-symmetrical. The other ends of the two groups of lifting rods extend to the outer wall of the positioning frame and are jointly sleeved with a push piece, and the upper and lower ends of the push piece are provided with a card slot. The bottom of the lifting rod passes through the interior of the card slot, and the outside of the lifting rod is fixedly sleeved with rings on both sides of the card slot. Cylinder three is provided at the center of the side of the push piece away from the positioning frame through the push rod, and cylinder three is installed on the inner wall of the bottom frame through the machine base.

[0015] Furthermore, the two groups of lifting rods are fixedly sleeved on the outside and on one side of the positioning frame, and a spiral sleeve is fixedly installed on the front end of the ring. The upper and lower groups of spiral sleeves are spirally sleeved on the inside of the spiral sleeves, and the threads of the upper and lower groups of spiral sleeves are arranged in opposite directions. A dual-axis motor is commonly arranged between the two, and the dual-axis motor is fixedly connected to the outer wall of the positioning frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets up an initial testing mechanism, first uses the spiral guide rods set by two sets of opposite threads to rotate, realizes the opposite movement of the sliding frame, drives the clamping frame to adaptively clamp the transmission shaft, and then performs rotation test and seismic test. Rotation test: Motor 1 drives the long frame to make circular motion, driving the spiral guide rods, clamping frame and transmission shaft to rotate synchronously, realizing dynamic parameter collection at the basic speed;

[0018] Seismic test: The cylinder pushes the concave clamping frame to move horizontally, and the circular shaft of the vertical frame slides in the corrugated groove of the bottom frame, simulating the up and down floating of the transmission shaft in actual operation.

[0019] 2. The present invention also realizes axial resistance test and rotational resistance composite recording test by setting a dynamic testing mechanism, axial pressure load simulation: when the transmission shaft is in the state of self-rotation, the end is inserted into the clamping cylinder, the second cylinder drives the rotating ring to rotate, and the pulling plate contracts to clamp the end of the transmission shaft. During self-rotation, the transmission shaft and the plate are continuously pressed against each other, generating axial resistance, simulating axial preload or impact conditions, and evaluating the compression and impact resistance of the transmission shaft;

[0020] Adjustable rotational resistance loading: A dual-axis motor drives a spiral rod with opposite threads to control the movement of the upper and lower spiral frames and rings, driving the wedge-shaped pick to insert or withdraw from the gap between adjacent ring magnets, achieving rapid separation and connection of the counterweight retaining ring. By increasing or decreasing the number of counterweight retaining rings on the string rod, the rotational resistance of the drive shaft during rotation can be flexibly adjusted to simulate performance under different load conditions and improve the comprehensiveness of test data.

[0021] In summary, this test system achieves accurate evaluation of the comprehensive performance of the reducer drive shaft under complex working conditions through the synergistic effect of adaptive clamping and multi-degree-of-freedom dynamic simulation, providing a reliable basis for design optimization and quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a rear view of the combination of the partial structure of the bottom frame and the initial measurement mechanism of the present invention;

[0025] Figure 3 It is a side view of the long frame structure of the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the combination of the local structure of the bottom frame and the dynamic measurement mechanism of the present invention;

[0027] Figure 5 It is a partial schematic diagram of the dynamic testing mechanism of the present invention;

[0028] Figure 6 It is a partial top view of the dynamic measuring mechanism of the present invention;

[0029] Figure 7 It is a partial three-dimensional schematic diagram of the dynamic measuring mechanism of the present invention.

[0030] In the figure: 1. bottom frame; 2. initial measurement mechanism; 21. cylinder 1; 22. concave clamping frame; 23. vertical frame; 24. motor 1; 25. long frame; 26. motor 2; 27. spiral guide rod; 271. sliding frame; 28. clamping frame; 29. ​​circular shaft; 210. sliding shaft; 211. spring damping shock absorber; 3. dynamic measurement mechanism; 31. positioning frame; 32. string rod; 33. clamping cylinder; 331. abutment; 332. abutment; 333. swivel; 334. positioning ring; 335. cylinder 2; 34. storage rod; 35. counterweight clamping ring; 36. ring magnetic plate; 37. lifting rod; 371. sleeve ring; 38. wedge-shaped pick; 39. push piece; 310. cylinder 3; 311. circular ring; 312. spiral sleeve; 313. spiral rotating rod; 314. dual-axis motor. DETAILED DESCRIPTION

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1 - Figure 3 As shown, a comprehensive performance test system for a reducer transmission shaft includes a bottom frame 1, inside which an initial test mechanism 2 and a dynamic additional test mechanism 3 are sequentially arranged from right to left;

[0033] The initial detection mechanism 2 includes a cylinder 1 21 provided at the center of the inner wall of one side of the bottom frame 1. The output end of the cylinder 1 21 is fixedly connected to a concave clamping frame 22 via a push rod. A rectangular vertical frame 23 is clamped inside the concave clamping frame 22. A motor 24 is provided at the center of one side of the vertical frame 23, and a long frame 25 is fixedly installed at the output end of the motor 24.

[0034] A second motor 26 is provided on the inner wall of one side of the long frame 25. The output end of the second motor 26 is sequentially connected to two sets of spiral guide rods 27. The two sets of spiral guide rods 27 are arranged with opposite threads. The outer surfaces of the two sets of spiral guide rods 27 are spirally sleeved with sliding frames 271. The ends of the sliding frames 271 extend to the outside of the long frame 25 and are fixedly mounted with clamping frames 28. The opposite surfaces of the two sets of clamping frames 28 are provided with semi-cylindrical grooves.

[0035] The rear end inner wall of the bottom frame 1 is provided with a corrugated groove, and transverse grooves are provided at both ends of the corrugated groove. The circular shaft 29 fixedly installed at the rear end center of the vertical frame 23 moves inside one set of transverse grooves. A sliding shaft 210 is fixedly installed on one side wall of the vertical frame 23 and located at the upper and lower ends of the motor 1 24. The two sets of sliding shafts 210 are respectively engaged with the inner grooves provided at the upper and lower ends of the frame body of the concave card frame 22, and a spring damping shock absorbing ring 211 is provided between the sliding shaft 210 and the inner wall of the card groove.

[0036] Pre-assembly stage: First, place one end of the transmission shaft between the two sets of clamping frames 28, then start the second motor 26 to drive the two sets of spiral guide rods 27 to rotate in the same direction. Because the external threads of the two sets of spiral guide rods 27 are arranged in opposite directions, the sliding frames 271 are forced to move towards each other outside the spiral guide rods 27, driving the two sets of clamping frames 28 to move towards each other until one end of the transmission shaft is clamped;

[0037] Initial test phase 1: Start motor 1 24 to drive the long frame 25 to perform circular motion. The long frame 25 drives the spiral guide rod 27 and the clamping frame 28 to perform circular motion. The clamping frame 28 drives the transmission shaft to perform circular motion. At this time, the basic speed of the transmission shaft can be tested to record the basic dynamic parameters of the transmission shaft under normal rotation.

[0038] Preliminary Test Phase II: Based on Test Phase I, cylinder 1 21 is activated to drive the push rod to perform telescopic movement. The push rod pushes the concave clamping frame 22 and vertical frame 23 to perform horizontal linear movement. The vertical frame 23 drives the circular shaft 29 to perform horizontal linear movement inside the corrugated groove, forcing the vertical frame 23 and the clamped transmission shaft to float up and down. The vertical frame 23 also drives the sliding shaft 210 to slide inside the clamping groove. At this time, the spring damping shock absorbing ring 211 acts as a shock absorber for the sliding shaft 210. By performing an up and down floating test on the transmission shaft under self-rotation, the vibration environment of the transmission shaft in actual operation is simulated. The dynamic parameters of the transmission shaft under vibration are recorded to evaluate its seismic performance.

[0039] At the same time, the circular shaft 29 slides to the transverse groove on the other side of the corrugated groove and stops fluctuating up and down, and the other end of the transmission shaft extends to the dynamic adding measurement mechanism 3 to enter the adding measurement stage.

[0040] Example 2: Please refer to Figure 4 - Figure 6 As shown, the dynamic measurement mechanism 3 includes a positioning frame 31 provided in a concave structure, and a string rod 32 is rotatably provided at the center of the frame body on one side of the positioning frame 31, and one end of the string rod 32 extends to the outside of the positioning frame 31 and is fixedly installed with a clamping cylinder 33;

[0041] Based on the first embodiment, the cylinder 1 21 is used to continuously push the transmission shaft toward the dynamic testing mechanism 3, and the end of the transmission shaft is inserted into the inner wall of the clamp 33. The end of the transmission shaft in the rotating state continuously presses against the inner wall of the clamp 33, and a compressive load is applied along the axis of the transmission shaft to simulate axial preload or impact conditions.

[0042] The inner wall of the collet 33 is provided with several groups of slots at equal intervals, and several groups of inclined retaining plates 331 are provided inside the slots. The bottom of the retaining plates 331 is hingedly connected to a retaining shaft 332. The groups of retaining plates 331 extend outside the collet 33 and are hingedly connected to a swivel 333 at one end. A positioning ring 334 is fixedly sleeved on the outside of the collet 33 adjacent to the swivel 333, and an inclined cylinder 2 335 is provided at the top end of the positioning ring 334 near the swivel 333. The output end of the cylinder 2 335 is hingedly connected to the side wall of the swivel 333 through an inclined push rod.

[0043] During this process, the second cylinder 335 is started to use the push rod to push the rotating ring 333 to rotate. The rotating ring 333 pulls the several groups of abutments 331 to rotate with the abutment shaft 332 as the center. During the rotation process, the several groups of abutments 331 gradually shrink to the inner wall of the clamping barrel 33 until the end of the transmission shaft is tightly clamped inside the clamping barrel 33. During the rotation of the transmission shaft, the end of the transmission shaft and the abutments 331 are constantly pressed. Therefore, during the rotation process of the transmission shaft, the transmission shaft will be subjected to the resistance given by the abutments 331. At this time, the rotation state of the transmission shaft under the resistance can be observed, so as to judge the comprehensive performance of the transmission shaft.

[0044] In addition, after the dynamic test is completed, the push rod of the second cylinder 335 is reset, driving the swivel 333 to rotate in the opposite direction, and the swivel 333 drives the retaining plate 331 to gradually open. At this time, the transmission shaft can be taken out from the inside of the clamping barrel 33. The operation is simple and quick, which facilitates the subsequent replacement of the transmission shaft and the reset of the dynamic test mechanism.

[0045] Example 3: Please refer to Figure 4-Figure 7 As shown, a storage rod 34 is fixedly installed at the center of the inner wall of the positioning frame 31 away from the string rod 32, and a plurality of groups of counterweight snap rings 35 are sleeved on the outside of the storage rod 34. Ring magnetic plates 36 are fixedly installed on both sides of each group of counterweight snap rings 35. The two symmetrical groups of ring magnetic plates 36 are oppositely polarized and attract each other.

[0046] The inner wall of one side of the positioning frame 31 is provided with vertical grooves at the upper and lower ends of the storage rod 34. A lifting rod 37 is provided horizontally through the two sets of vertical grooves. One end of the two sets of lifting rods 37 extends into the interior of the positioning frame 31 and is fixedly installed with a wedge-shaped pick 38 on the opposite surface. The upper and lower sets of wedge-shaped picks 38 are mirror-symmetrical. The other ends of the two sets of lifting rods 37 extend to the outer wall of the positioning frame 31 and are jointly sleeved with a push piece 39. The upper and lower ends of the push piece 39 are provided with a card slot. The bottom of the lifting rod 37 passes through the interior of the card slot, and the outside of the lifting rod 37 and on both sides of the card slot are fixedly sleeved with a ring 371.

[0047] A cylinder three 310 is provided at the center of the side of the push piece 39 away from the positioning frame 31 through a push rod, and the cylinder three 310 is installed on the inner wall of the bottom frame 1 through a machine base. The two groups of lifting rods 37 are fixedly sleeved with rings 311 on the outside and located on one side of the positioning frame 31, and a spiral sleeve 312 is fixedly installed at the front end of the ring 311. The upper and lower groups of spiral sleeves 312 are respectively spirally sleeved with spiral rotating rods 313. The threads of the upper and lower groups of spiral rotating rods 313 are arranged in opposite directions, and a dual-axis motor 314 is commonly provided between the two, and the dual-axis motor 314 is fixedly connected to the outer wall of the positioning frame 31.

[0048] During the resistance detection stage, the string rod 32 and the clamping barrel 33 rotate synchronously. The rotation resistance is increased by continuously clamping the heavy clamping ring 35 on the string rod 32. The specific installation process is as follows: First, the cylinder 3 310 is started to use the push rod to pull the push piece 39 to move, and at the same time, the lifting rod 37 and the wedge-shaped pick 38 are moved to move the upper and lower sets of wedge-shaped picks 38 to the appropriate position and align them with the gap between the two adjacent sets of ring magnetic pieces 36;

[0049] Next, the dual-axis motor 314 is started to drive the upper and lower sets of spiral rods 313 to rotate relative to or in opposite directions. Since the threads of the upper and lower sets of spiral rods 313 are in opposite directions, the spiral rods 313 drive the upper and lower sets of spiral frames 312 and the upper and lower sets of circular rings 311 to move relative to each other, and the upper and lower sets of lifting rods 37 also move closer to each other until the tips of the upper and lower sets of wedge-shaped picks 38 are respectively inserted into the gaps between the two adjacent sets of ring magnetic plates 36, thereby separating the two adjacent sets of counterweight clamping rings 35.

[0050] Subsequently, the cylinder 310 is used to push the counterweight snap ring 35 at the separation position to be sleeved on the outside of the string rod 32. When the lifting rod 37 moves, the wedge-shaped pick 38 is driven to move synchronously. The tip of the wedge-shaped pick 38 is used to move the counterweight snap ring 35, so that it moves along the outside of the storage rod 34 toward the string rod 32 until the counterweight snap ring 35 is sleeved on the outside of the string rod 32. Through this process, the installation of the counterweight snap ring 35 is completed.

[0051] The wedge-shaped pick 38 is used to press and limit the counterweight snap ring 35 sleeved on the outside of the string rod 32 to prevent it from falling off when the clamp 33 rotates. During the installation process, the size of the rotational resistance can be controlled by observing the number of counterweight snap rings 35, thereby realizing the performance test of the reducer drive shaft under different resistance conditions, further improving the accuracy of the experimental data;

[0052] It is worth noting that after completing the counterweight detection, the above steps need to be repeated again. First, the wedge-shaped pick 38 is lifted, and then the push piece 39 is pushed to the appropriate position by the cylinder three 310. Then, the wedge-shaped pick 38 is sunk to the side of the counterweight clamping ring 35 outside the string rod 32, and the counterweight clamping ring 35 is forced to return to the storage rod 34 through the reset movement of the push piece 39.

[0053] Working principle:

[0054] First, the reverse thread design of the two sets of spiral guide rods 27 realizes the opposite movement of the sliding frame 271, driving the clamping frame 28 to adaptively clamp transmission shafts of different diameters, with uniform and stable clamping force;

[0055] Rotation test: Motor 1 24 drives the long frame 25 to do circular motion, driving the spiral guide rod 27, the clamping frame 28 and the transmission shaft to rotate synchronously, realizing dynamic parameter collection at the basic speed.

[0056] Seismic test: Cylinder 1 21 pushes the concave card frame 22 to move horizontally, and the round shaft 29 of the vertical frame 23 slides in the corrugated groove of the bottom frame 1, simulating the up and down floating of the drive shaft in actual operation. The sliding shaft 210 cooperates with the spring damping shock-absorbing ring 211 in the card groove of the concave card frame 22 to buffer the floating impact and protect the drive shaft and sensor;

[0057] Axial resistance test: When the drive shaft rotates, the end is inserted into the clamp 33. Cylinder 2 335 drives the swivel 333 to rotate, and the pull plate 331 contracts to clamp the end of the drive shaft. During the rotation, the drive shaft and the plate 331 continuously press against each other, generating axial resistance. This simulates axial preload or impact conditions and evaluates the compressive and impact resistance of the drive shaft.

[0058] Dynamic rotational resistance loading simulation: First, the dual-axis motor 314 drives the reverse-threaded spiral rod 313 to control the movement of the upper and lower spiral sleeves 312 and the circular ring 311, driving the wedge-shaped pick 38 to insert or withdraw from the gap between adjacent ring magnets 36, realizing the rapid separation and connection of the counterweight snap ring 35; the counterweight snap ring 35 moves along the storage rod 34 to the outside of the string rod 32, and is pressed and fixed by the wedge-shaped pick 38 to prevent it from falling off; then, by increasing or decreasing the number of counterweight snap rings 35 on the string rod 32, the rotational resistance of the drive shaft during rotation can be flexibly adjusted, simulating performance under different load conditions and improving the comprehensiveness of the test data;

[0059] It integrates multi-dimensional testing functions such as basic speed test, seismic performance test, axial resistance test, rotational resistance test, etc. to comprehensively evaluate the strength, fatigue life and stability of the drive shaft.

[0060] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A comprehensive performance test system for a reducer transmission shaft, comprising a bottom frame (1), characterized in that: The bottom frame (1) is provided with an initial measurement mechanism (2) and a dynamic additional measurement mechanism (3) in sequence from right to left. The initial detection mechanism (2) includes a cylinder (21) arranged at the center of the inner wall of one side of the bottom frame (1), the output end of the cylinder (21) is fixedly connected to a concave card frame (22) through a push rod, and a rectangular vertical frame (23) is clamped inside the concave card frame (22), a motor (24) is arranged at the center of one side of the vertical frame (23), and a long frame (25) is fixedly installed at the output end of the motor (24); A second motor (26) is provided on the inner wall of one side of the long frame (25), and the output end of the second motor (26) is sequentially connected to two groups of spiral guide rods (27), and the two groups of spiral guide rods (27) are arranged in opposite directions. The outer spiral sleeves of the two groups of spiral guide rods (27) are connected with sliding frames (271), and the ends of the sliding frames (271) extend to the outside of the long frame (25) and are fixedly installed with clamping frames (28), and the opposite surfaces of the two groups of clamping frames (28) are both provided with semi-cylindrical grooves; The rear end inner wall of the bottom frame (1) is provided with a corrugated groove, and transverse grooves are provided at both ends of the corrugated groove.

2. A comprehensive performance test system for a reducer transmission shaft according to claim 1, characterized in that: A circular shaft (29) fixedly mounted at the rear end center of the vertical frame (23) moves inside one of the horizontal grooves. A sliding shaft (210) is fixedly mounted on one side wall of the vertical frame (23) and located at the upper and lower ends of the motor (24). The two groups of sliding shafts (210) are respectively clamped in the inside of the card slots provided at the upper and lower ends of the frame body on one side of the concave card frame (22), and a spring damping shock absorbing ring (211) is commonly provided between the sliding shaft (210) and the inner wall of the card slot.

3. A comprehensive performance test system for a reducer transmission shaft according to claim 1, characterized in that: The dynamic measurement mechanism (3) comprises a positioning frame (31) arranged in a concave structure, and a string rod (32) is rotatably arranged at the center of a frame body on one side of the positioning frame (31), and an outer end of the string rod (32) extends to the outside of the positioning frame (31) and is fixedly mounted with a clamping barrel (33).

4. A comprehensive performance test system for a reducer transmission shaft according to claim 3, characterized in that: The inner wall of the clamp (33) is provided with a plurality of groups of slots at equal intervals, and the inside of the slots is provided with a plurality of groups of inclined push pieces (331), and the bottom of the push piece (331) is hinged with a push shaft (332), and the plurality of groups of push pieces (331) extend outside the clamp (33) and are hinged with a rotating ring (333) at one end. A positioning ring (334) is fixedly sleeved on the outside of the clamp (33) adjacent to the rotating ring (333), and an inclined cylinder 2 (335) is provided at the top end of the positioning ring (334) near the rotating ring (333), and the output end of the cylinder 2 (335) is hinged with the side wall of the rotating ring (333) through an inclined push rod.

5. A comprehensive performance test system for a reducer transmission shaft according to claim 3, characterized in that: A storage rod (34) is fixedly installed at the center of the inner wall of the positioning frame (31) away from the string rod (32), and a plurality of groups of counterweight clamping rings (35) are sleeved on the outside of the storage rod (34). Ring magnetic sheets (36) are fixedly installed on both sides of each group of counterweight clamping rings (35). The two groups of symmetrical ring magnetic sheets (36) are opposite magnetic poles. Vertical grooves are provided on the inner wall of one side of the positioning frame (31) and at the upper and lower ends of the storage rod (34). Lifting rods (37) are provided transversely through the inside of the two groups of vertical grooves.

6. A comprehensive performance test system for a reducer transmission shaft according to claim 5, characterized in that: One end of the two groups of lifting rods (37) extends to the interior of the positioning frame (31) and is fixedly mounted with a wedge-shaped pick (38) on the opposite surface. The upper and lower groups of the wedge-shaped pick (38) are mirror-symmetrical. The other ends of the two groups of lifting rods (37) extend to the outer wall of the positioning frame (31) and are jointly sleeved with a push piece (39), and the upper and lower ends of the push piece (39) are both provided with a card slot.

7. A comprehensive performance test system for a reducer transmission shaft according to claim 6, characterized in that: The bottom of the lifting rod (37) passes through the inside of the card slot, and the outside of the lifting rod (37) and on both sides of the card slot are fixedly sleeved with a ring (371), and the center of the push piece (39) away from the positioning frame (31) is provided with a cylinder three (310) through a push rod, and the cylinder three (310) is installed on the inner wall of the bottom frame (1) through the machine base.

8. A comprehensive performance test system for a reducer transmission shaft according to claim 7, characterized in that: A circular ring (311) is fixedly sleeved on the outside of the two groups of lifting rods (37) and located on one side of the positioning frame (31), and a spiral sleeve frame (312) is fixedly installed on the front end of the circular ring (311). A spiral rotating rod (313) is spirally sleeved on the inside of the upper and lower groups of spiral sleeve frames (312). The threads of the upper and lower groups of spiral rotating rods (313) are arranged in opposite directions, and a dual-axis motor (314) is commonly arranged between the two groups. The dual-axis motor (314) is fixedly connected to the outer wall of the positioning frame (31).

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