A high-power motor durability test bench

Abstract

The present invention discloses a high-power motor durability test bench, which specifically relates to the field of motor testing technology, including a test platform, an electric cylinder, a limit roller and a vertical eccentric load test mechanism; wherein the vertical eccentric load test mechanism includes a guide sleeve, a guide groove, a convex sleeve column, a hinge block, a connecting shaft, a sleeve shaft, a hinge shaft, a concave block, a sleeve slider and a slide frame; and a transverse eccentric load test mechanism is provided on one side of the sleeve slider; and a positioning docking assembly is installed on one side of the test platform. The present invention has the advantages of being able to perform vertical eccentric load tests on the guide sleeve at different positions according to actual needs through the vertical eccentric load test mechanism, and the test application range is wider, thereby solving the problem that the eccentric load position has different transverse positions and vertical positions during actual use, which makes it difficult to perform eccentric load tests on high-power motors at different positions according to actual needs, and the test has large limitations.

Description

Technical Field

[0001] The present invention relates to the technical field of motor testing, and more specifically, to a high-power motor durability testing platform. Background Art

[0002] The high-power motor durability test bench can simulate the use of the motor under various load factors under actual working conditions, thereby verifying the performance and fatigue strength of the motor under long-term operation. This is crucial to ensure the reliability and stability of high-power motors in actual applications.

[0003] After searching the existing public documents, the patent with patent announcement number CN110609231A discloses a servo motor durability test bench, which drives the load plate to rotate around its axis through the test motor. The load plate is provided with a locking mechanism for fixing the counterweight block so that the counterweight block and the load plate rotate synchronously. The loading device pushes the counterweight block to move toward the load plate, and the axis of the loading device coincides with the axis of the load plate and is arranged on the axis track of the counterweight block. The servo motor durability test bench involved in this invention does not require manual load replacement and has high test efficiency. However, the test bench has the following problems.

[0004] When the test bench tests a high-power motor, it needs to pass a load test during the operation and driving process. The eccentric load position has different horizontal and vertical positions during actual use. This makes it difficult to perform eccentric load tests on the high-power motor at different positions according to actual needs. The test has great limitations. Therefore, it is necessary to provide a high-power motor durability test bench. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a high-power motor durability test bench, comprising a test platform, an electric cylinder and a limit roller, wherein the electric cylinder is fixedly connected to the top of the test platform, the limit roller is fixedly connected to the output end of the electric cylinder, and the outer wall of the limit roller is provided with a vertical eccentric load test mechanism; the vertical eccentric load test mechanism comprises a guide sleeve arranged on the outer wall of the limit roller, and a guide groove is opened on one side of the inner wall of the guide sleeve, the limit roller is rotatably connected to the guide sleeve to which the guide groove belongs, and the inner wall of the guide sleeve A convex sleeve column is slidably connected; a hinge block is fixedly connected to one side of the guide sleeve, a connecting shaft is fixedly connected to one side of the inner wall of the hinge block, and the outer wall of the connecting shaft is rotatably connected to the sleeve shaft, and the inner wall of the sleeve shaft is rotatably connected to the hinge shaft at a position away from the connecting shaft; a concave block is fixedly installed on one end of the hinge shaft, a sleeve slider is fixedly connected to one side of the concave block, and a slide frame is slidably connected to the outer wall of the sleeve slider; a transverse eccentric load test mechanism is provided on one side of the sleeve slider; a positioning docking assembly is installed on one side of the test platform.

[0006] Preferably, the inner wall of the guide sleeve and the outer wall of the limiting roller are both smooth surfaces, and the inner wall of the guide groove is a smooth surface, the center point of the connecting shaft is higher than the center point of the hinge shaft, the hinge block and the concave block are both rotatably connected to the sleeve shaft, the inner wall of the sleeve slider is slidably connected with a guide column, and the guide column is fixedly connected to the slide frame, and the other side of the test platform is fixedly connected with a controller; the outer wall of the concave block is fixedly connected with a sleeve block on the adjacent side of the sleeve slider, a battery is fixedly connected to the lower surface of the sleeve block, and a distance sensor is fixedly connected to one side of the battery; a sensing block is provided above the distance sensor, and the sensing block is fixedly connected to the convex sleeve column.

[0007] When the technical solution is in use, the electric cylinder pushes the limit roller to move, and the guide sleeve moves along the inner wall of the guide groove. At the same time, the guide sleeve drives the hinge block to move, the connecting shaft drives the top of the sleeve shaft to move to the left, and the hinge shaft causes the concave block to move downward. The sleeve slider moves downward along the inner wall of the slide frame, the sleeve slider drives the connecting block to move downward, the connecting block causes the guide frame to move downward, the support rod drives the sliding sleeve block to move downward, and the transmission screw rod moves downward while the adjustment bar moves downward. The vertical eccentric load position of the counterweight sleeve block can be adjusted. When the distance value sensed by the distance sensor is the same as the test distance of the set vertical eccentric load, the electric cylinder is turned off by the controller.

[0008] Preferably, the transverse eccentric load testing mechanism includes a connecting block fixedly arranged on one side of the sleeve sliding block; one side of the connecting block is fixedly connected to a guide frame, and one side of the inner wall of the guide frame is fixedly connected to a support rod, the outer wall of the support rod is slidably connected to a sliding sleeve block, and the sliding sleeve block is slidably connected to the guide frame; one side of the sliding sleeve block is fixedly connected to an adjusting bar, and one side of the adjusting bar is fixedly connected to a transmission screw, the outer wall of the transmission screw is slidably connected to a counterweight sleeve block, and a nut is rotatably connected to one side of the counterweight sleeve block, and the nut and the transmission screw are threadedly connected; two limit rings are provided under the sliding frame, and a concave plate is installed at the bottom end of the outer wall of the limit ring, and the two limit rings are fixedly connected to the concave plate, and the bottom end of the concave plate is fixedly connected to a threaded sleeve block;

[0009] The inner wall of the threaded sleeve is threadedly connected with a linkage screw, and the outer wall of the threaded sleeve is slidably connected with a support frame, and the support frame is fixedly connected to the test platform, and one end of the support frame is fixedly connected with a transmission motor, and the transmission motor is used to drive the linkage screw to rotate, the guide frame and the sliding frame are slidably connected, the vertical cross-section of the support rod is circular, the two limit rings are symmetrically arranged about the adjustment bar, and the two limit rings are slidably connected to the adjustment bar.

[0010] When the present technical solution is in use, the transmission motor drives the linkage screw to rotate inside the support frame, and at the same time, the linkage screw drives the threaded sleeve block to move right under the action of the thread transmission force, and the threaded sleeve block causes the concave plate to move right, and the limit ring drives the adjustment bar to move right, and the sliding sleeve block moves right along the inner wall of the guide frame, and the sliding block supports the connecting block, and the guide frame supports the support rod. At the same time, the adjustment bar moves right, which will drive the transmission screw to move right synchronously, and the transmission screw causes the nut to move right, and the nut causes the counterweight sleeve block to move right, so that the counterweight sleeve block can move laterally. When the counterweight sleeve block is laterally eccentrically loaded to the specified test position, the transmission motor is turned off by the controller.

[0011] Preferably, the positioning docking assembly comprises a bracket fixedly mounted on one side of the test platform;

[0012] An extrusion electric cylinder is fixedly connected to the top of the bracket, a pressure sensor is fixedly connected to the output end of the extrusion electric cylinder, a linkage bar is fixedly connected to the sensing end of the pressure sensor, a positioning plate is fixedly connected to the top of the linkage bar, and the positioning plate is slidably connected to the test platform; a mounting plate is installed on the inner wall of the positioning plate, the mounting plate and the positioning plate are fixedly connected by bolts, a high-power motor is fixedly installed on the top of the mounting plate, the output end of the high-power motor is plugged into the inner wall of the convex strip sleeve, the pressure sensor is used to sense the extrusion force of the linkage bar, and the vertical cross-section of the linkage bar is L-shaped.

[0013] When using this technical solution, the mounting plate is inserted into the positioning plate, and the positioning plate and the mounting plate are positioned and fixed by bolts. At the same time, the test platform support bracket is used to squeeze the electric cylinder to push the pressure sensor to the right. The pressure sensor causes the linkage bar to move to the right, and the positioning plate drives the mounting plate to move to the right. The output end of the high-power motor is positioned and docked with the inner wall of the convex strip sleeve column.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention uses a vertical eccentric load testing mechanism. The electric cylinder pushes the limit roller to move, and the guide sleeve moves along the inner wall of the guide groove. The hinge block causes the connecting shaft to move left, and the connecting shaft drives the top end of the sleeve shaft to move left, while the bottom end of the connecting shaft drives the hinge shaft to move downward. The connecting block causes the guide frame to move downward, and the support rod drives the sliding sleeve block to move downward. The vertical eccentric load position of the counterweight sleeve block can be adjusted. The distance value between the distance sensor and the sensing block is sensed by the distance sensor. When the distance value sensed by the distance sensor is the same as the set vertical eccentric load test distance, the electric cylinder is turned off by the controller. The guide sleeve can be tested for vertical eccentric loads at different positions according to actual needs. The test has smaller test limitations and a wider range of test applications.

[0016] 2. The present invention adopts a transverse eccentric load testing mechanism. The transmission motor drives the linkage screw to rotate inside the support frame. The threaded sleeve moves right along the inner wall of the support frame, and the threaded sleeve causes the concave plate to move right. The concave plate drives the two limit rings to move right. The limit rings drive the adjustment bar to move right. The sliding sleeve moves right along the outer wall of the support rod. The support rod supports the sliding sleeve. The nut causes the counterweight sleeve to move right. The counterweight sleeve is subjected to transverse eccentric load to the specified test position. Eccentric load tests at different transverse positions can be performed. The guide sleeve can be subjected to transverse eccentric load tests at different positions according to actual needs. The test has smaller limitations and a wider test range.

[0017] 3. The present invention utilizes a positioning and docking assembly to insert the mounting plate into the interior of the positioning plate, and utilizes bolts to position and fix the positioning plate and the mounting plate. The bracket supports the extrusion electric cylinder, and the extrusion electric cylinder pushes the pressure sensor to move right. The pressure sensor causes the linkage bar to move right, and the mounting plate causes the high-power motor to move right. The output end of the high-power motor is positioned and docked with the inner wall of the convex strip sleeve column, so that the output end of the high-power motor is positioned and docked with the convex strip sleeve column, and the high-power motor can be tested for lateral eccentric loads at different positions, as well as vertical eccentric loads at different positions.

[0018] Through the mutual influence of the above multiple effects, the output end of the high-power motor is first positioned and docked with the convex strip sleeve column, and then the vertical eccentric load position of the counterweight sleeve can be adjusted, and finally the lateral eccentric load position of the counterweight sleeve is adjusted and tested. In summary, the guide sleeve can be tested for vertical eccentric loads at different positions according to actual needs, and the guide sleeve can be tested for lateral eccentric loads at different positions according to actual needs, with fewer test limitations and a wider test range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the high-power motor durability test bench of the present invention.

[0020] Figure 2 It is a schematic diagram of the partial structure of the connection between the electric cylinder and the test platform of the present invention.

[0021] Figure 3 It is a schematic diagram of the vertical cross-section structure of the high-power motor durability test bench of the present invention.

[0022] Figure 4 It is a schematic diagram of the local structure of the vertical section of the joint between the hinge block and the guide sleeve of the present invention.

[0023] Figure 5 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0024] Figure 6It is a schematic diagram of the cross-sectional structure of the high-power motor durability test bench of the present invention.

[0025] Figure 7 It is a schematic diagram of the partial structure of the cross section of the connection between the sliding sleeve block and the adjustment strip of the present invention.

[0026] Figure 8 It is a schematic diagram of the partial structure of the cross section of the connection between the limit ring and the concave plate of the present invention.

[0027] Fig. 9 It is a schematic diagram of the partial structure of the limiting ring and the concave plate connecting column of the present invention from a front view.

[0028] Fig.10 It is a rear view structural schematic diagram of the high-power motor durability test bench of the present invention.

[0029] Fig.11 It is a schematic diagram of the partial structure of the connection between the bracket and the extrusion cylinder of the present invention.

[0030] The accompanying drawings are marked as follows: 1, test platform; 2, electric cylinder; 3, limit roller; 4, guide sleeve; 5, guide groove; 6, convex sleeve column; 7, hinge block; 8, connecting shaft; 9, sleeve shaft; 10, hinge shaft; 11, concave block; 12, sleeve slider; 13, slide frame; 14, guide column; 15, controller; 16, sleeve block; 17, battery; 18, distance sensor; 19, induction block; 20, connecting block; 21, guide 1. Frame; 22. Support rod; 23. Sliding sleeve; 24. Adjustment strip; 25. Transmission screw; 26. Counterweight sleeve; 27. Nut; 28. Limiting ring; 29. ​​Concave plate; 30. Threaded sleeve; 31. Support frame; 32. Linkage screw; 33. Transmission motor; 34. Bracket; 35. Extrusion cylinder; 36. Pressure sensor; 37. Linkage strip; 38. Positioning plate; 39. Mounting plate; 40. High-power motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of 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 of 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.

[0032] As attached Figure 1-11A high-power motor durability test bench is shown, which is provided with a vertical eccentric load test mechanism, a lateral eccentric load test mechanism, and a positioning docking assembly. The arrangement of each mechanism and assembly can perform vertical eccentric load tests on the guide sleeve 4 at different positions according to actual needs, and perform lateral eccentric load tests on the guide sleeve 4 at different positions according to actual needs. The test has smaller limitations and a wider test range. The specific structural arrangements of each mechanism and assembly are as follows.

[0033] In this embodiment, as shown in the attached Figure 1-4 As shown, the electric cylinder 2 is fixedly connected to the top of the test platform 1, the limiting roller 3 is fixedly connected to the output end of the electric cylinder 2, and the outer wall of the limiting roller 3 is provided with a vertical eccentric load test mechanism; the vertical eccentric load test mechanism includes a guide sleeve 4 arranged on the outer wall of the limiting roller 3, and a guide groove 5 is opened on one side of the inner wall of the guide sleeve 4, the limiting roller 3 is rotatably connected to the guide sleeve 4 to which the guide groove 5 belongs, and the inner wall of the guide sleeve 4 is slidably connected with a convex sleeve column 6.

[0034] A hinge block 7 is fixedly connected to one side of the guide sleeve 4, a connecting shaft 8 is fixedly connected to one side of the inner wall of the hinge block 7, and a sleeve shaft 9 is rotatably connected to the outer wall of the connecting shaft 8, and a hinge shaft 10 is rotatably connected to the inner wall of the sleeve shaft 9 and at a position away from the connecting shaft 8; a concave block 11 is fixedly installed at one end of the hinge shaft 10, a sleeve slider 12 is fixedly connected to one side of the concave block 11, and a slide frame 13 is slidably connected to the outer wall of the sleeve slider 12; a transverse eccentric load test mechanism is provided on one side of the sleeve slider 12; a positioning docking assembly is installed on one side of the test platform 1.

[0035] In this embodiment, as shown in the attached Figure 1-5 As shown, the inner wall of the sleeve slider 12 is slidably connected with a guide column 14, and the guide column 14 is fixedly connected to the slide frame 13, so that the sleeve slider 12 can slide down along the outer wall of the guide column 14, thereby guiding the sleeve slider 12.

[0036] A controller 15 is fixedly connected to the other side of the test platform 1; a sleeve block 16 is fixedly connected to the outer wall of the concave block 11 and located on the adjacent side of the sleeve slider 12, a battery 17 is fixedly connected to the lower surface of the sleeve block 16, and a distance sensor 18 is fixedly connected to one side of the battery 17; a sensing block 19 is provided above the distance sensor 18, and the sensing block 19 is fixedly connected to the convex strip sleeve column 6, so that by setting the test distance of the vertical eccentric load on the controller 15, the concave block 11 drives the sleeve block 16 to move downward, the sleeve block 16 causes the battery 17 to move downward, and at the same time, the sleeve block 16 causes the distance sensor 18 to move downward, so that the battery 17 can power the distance sensor 18, and the distance sensor 18 senses the distance value between the distance sensor 18 and the sensing block 19.

[0037] In this embodiment, as shown in the attached Figure 6-9 As shown, the lateral eccentric load testing mechanism includes a connecting block 20 fixedly arranged on one side of the sleeve slider 12; one side of the connecting block 20 is fixedly connected to a guide frame 21, and one side of the inner wall of the guide frame 21 is fixedly connected to a support rod 22, the outer wall of the support rod 22 is slidably connected to a sliding sleeve block 23, and the sliding sleeve block 23 is slidably connected to the guide frame 21.

[0038] An adjustment bar 24 is fixedly connected to one side of the sliding sleeve 23, and a transmission screw 25 is fixedly connected to one side of the adjustment bar 24. A counterweight sleeve 26 is slidably connected to the outer wall of the transmission screw 25, and a nut 27 is rotatably connected to one side of the counterweight sleeve 26, and the nut 27 is threadedly connected to the transmission screw 25; two limit rings 28 are provided below the sliding frame 13, and a concave plate 29 is installed at the bottom end of the outer wall of the limit ring 28. Both limit rings 28 are fixedly connected to the concave plate 29, and a threaded sleeve 30 is fixedly connected to the bottom end of the concave plate 29; a linkage screw 32 is threadedly connected to the inner wall of the threaded sleeve 30, and a support frame 31 is slidably connected to the outer wall of the threaded sleeve 30, and the support frame 31 is fixedly connected to the test platform 1, and one end of the support frame 31 is fixedly connected to a transmission motor 33, and the transmission motor 33 is used to drive the linkage screw 32 to rotate.

[0039] The guide frame 21 is slidably connected to the slide frame 13 . The vertical cross-section of the support rod 22 is circular. The two limit rings 28 are symmetrically arranged about the adjustment bar 24 . Both the limit rings 28 are slidably connected to the adjustment bar 24 .

[0040] In this embodiment, as shown in the attached Figure 10-11 As shown, the positioning docking assembly includes a bracket 34 fixedly mounted on one side of the test platform 1; the top of the bracket 34 is fixedly connected to an extrusion electric cylinder 35, and a pressure sensor 36 is fixedly connected to the output end of the extrusion electric cylinder 35, and the sensing end of the pressure sensor 36 is fixedly connected to a linkage bar 37, and a positioning plate 38 is fixedly connected to the top of the linkage bar 37, and the positioning plate 38 is slidably connected to the test platform 1; a mounting plate 39 is installed on the inner wall of the positioning plate 38, and the mounting plate 39 and the positioning plate 38 are fixedly connected by bolts, and a high-power motor 40 is fixedly installed on the top of the mounting plate 39, and the output end of the high-power motor 40 is plugged into the inner wall of the convex strip sleeve column 6. The pressure sensor 36 is used to sense the extrusion force of the linkage bar 37, and the vertical cross-section of the linkage bar 37 is L-shaped.

[0041] The working principle of the high-power motor durability test bench of the present invention is as follows:

[0042] First, when the present invention is positioned and docked, the expansion bolts are first inserted into the holes of the test platform 1 to fix the test platform 1 on the installation ground. Then the mounting plate 39 is inserted into the interior of the positioning plate 38, and the positioning plate 38 and the mounting plate 39 are positioned and fixed by bolts, so that the mounting plate 39 supports the high-power motor 40, which can increase the stability of the high-power motor 40. At the same time, the test platform 1 is used to support the bracket 34, the bracket 34 supports the extrusion electric cylinder 35, the extrusion electric cylinder 35 pushes the pressure sensor 36 to move right, the pressure sensor 36 makes the linkage bar 37 move right, the linkage bar 37 pushes the positioning plate 38, the positioning plate 38 drives the mounting plate 39 to move right, and the mounting plate 39 makes the high-power motor 40 move right. The output end of the high-power motor 40 is positioned and docked with the inner wall of the convex strip sleeve column 6. When the pressure value sensed by the pressure sensor 36 is the same as the pressure value set by the controller 15, the extrusion electric cylinder 35 is closed by the controller 15.

[0043] Secondly, when the present invention performs a vertical eccentric load test, by setting the test distance of the vertical eccentric load on the controller 15, the electric cylinder 2 is started through the controller 15. The electric cylinder 2 pushes the limit roller 3 to move, and the limit roller 3 drives the guide sleeve 4 to move, and the guide sleeve 4 moves along the inner wall of the guide groove 5. At the same time, the guide sleeve 4 drives the hinge block 7 to move, and the hinge block 7 makes the connecting shaft 8 move left, and the connecting shaft 8 drives the top of the sleeve shaft 9 to move left, and the bottom end of the connecting shaft 8 drives the hinge shaft 10 to move downward, and the hinge shaft 10 makes the concave block 11 move downward. At the same time, the concave block 11 drives the sleeve slider 12 to move downward, and the sleeve slider 12 moves downward along the inner wall of the slide frame 13, and at the same time, the sleeve slider 12 slides down along the outer wall of the guide column 14.

[0044] At the same time, the sleeve slide 12 drives the connection block 20 to move downward, the connection block 20 makes the guide frame 21 move downward, and the guide frame 21 drives the support rod 22 to move downward. The support rod 22 will drive the sliding sleeve 23 to move downward, and the sliding sleeve 23 makes the adjustment bar 24 move downward. When the adjustment bar 24 moves downward, it will drive the transmission screw 25 to move downward, and the transmission screw 25 makes the counterweight sleeve 26 move downward, so that the vertical eccentric load position of the counterweight sleeve 26 can be adjusted. At the same time, the concave block 11 drives the sleeve 16 to move downward, the sleeve 16 makes the battery 17 move downward, and the sleeve 16 makes the distance sensor 18 move downward, so that the battery 17 can power the distance sensor 18, and the distance sensor 18 senses the distance value between the distance sensor 18 and the induction block 19. When the distance value sensed by the distance sensor 18 is the same as the test distance of the set vertical eccentric load, the electric cylinder 2 is turned off by the controller 15.

[0045] Then, when the present invention performs a lateral eccentric load test, the transmission motor 33 is started through the controller 15, and the transmission motor 33 drives the linkage screw 32 to rotate inside the support frame 31, and at the same time, the linkage screw 32 drives the threaded sleeve 30 to move right under the action of the thread transmission force, and the threaded sleeve 30 moves right along the inner wall of the support frame 31, and the threaded sleeve 30 causes the concave plate 29 to move right, the concave plate 29 drives the two limit rings 28 to move right, the limit rings 28 drive the adjustment bar 24 to limit and move right, the adjustment bar 24 drives the sliding sleeve 23 to move right, the sliding sleeve 23 moves right along the inner wall of the guide frame 21, and at the same time, the sliding sleeve 23 moves right along the outer wall of the support rod 22, and the sleeve slider 12 supports the connecting block 20, the connecting block 20 supports the guide frame 21, the guide frame 21 supports the support rod 22, and the support rod 22 supports the sliding sleeve 23. At the same time, the rightward movement of the adjustment bar 24 will drive the transmission screw 25 to move right synchronously. The transmission screw 25 causes the nut 27 to move right, and the nut 27 causes the counterweight block 26 to move right, so that the counterweight block 26 can move laterally. When the counterweight block 26 is laterally eccentrically loaded to the specified test position, the transmission motor 33 is turned off by the controller 15.

[0046] Finally, when the present invention conducts a test to check the records, the high-power motor 40 is started through the controller 15 to drive the convex sleeve column 6 to rotate, the convex sleeve column 6 drives the slide frame 13 to rotate, the slide frame 13 causes the guide column 14 to rotate, and at the same time the guide column 14 drives the sleeve slider 12 to rotate, the sleeve slider 12 causes the concave block 11 to rotate, the concave block 11 drives the hinge shaft 10 to rotate, the hinge shaft 10 drives the sleeve shaft 9 to rotate, and the sleeve shaft 9 also drives the connecting shaft 8 to rotate during the rotation process, the connecting shaft 8 drives the hinge block 7 to rotate, the hinge block 7 causes the guide sleeve disc 4 to rotate, and the guide groove 5 inside the guide sleeve disc 4 can rotate along the outer wall of the limiting roller 3.

[0047] At the same time, the sleeve slider 12 drives the connection block 20 to rotate, the connection block 20 makes the guide frame 21 rotate, the guide frame 21 drives the support rod 22 to rotate, the support rod 22 drives the sliding sleeve 23 to rotate, the sliding sleeve 23 drives the adjustment bar 24 to rotate, the adjustment bar 24 rotates along the two limit rings 28, and at the same time, the adjustment bar 24 makes the transmission screw 25 rotate, and the transmission screw 25 drives the counterweight sleeve 26 to rotate, so that the counterweight sleeve 26 can rotate eccentrically. After the weight is rotated, the load current value of the high-power motor 40 can be viewed through the display screen of the controller 15. When the load current value is the value set by the controller 15, the load of the high-power motor 40 is normal. When it exceeds the value set by the controller 15, the load of the high-power motor 40 has a problem. After running for one hour, stop the high-power motor 40, check the wear clearance of the shaft of the high-power motor 40, and record it on the test form. The high-power motor 40 can be tested for lateral eccentric loads at different positions, and the high-power motor 40 can be tested for vertical eccentric loads at different positions, so that the testing range of the high-power motor 40 is wider.

[0048] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-power motor durability test bench, comprising a test platform, an electric cylinder and a limit roller, wherein the electric cylinder is fixedly connected to the top of the test platform, and the limit roller is fixedly connected to the output end of the electric cylinder, and is characterized in that: The outer wall of the limiting roller is provided with a vertical eccentric load-bearing testing mechanism; The vertical eccentric load-bearing test mechanism comprises a guide sleeve arranged on the outer wall of the limiting roller, and a guide groove is opened on one side of the inner wall of the guide sleeve, the limiting roller is rotatably connected with the guide sleeve to which the guide groove belongs, and the inner wall of the guide sleeve is slidably connected with a convex sleeve column; one side of the guide sleeve is fixedly connected with a hinge block, one side of the inner wall of the hinge block is fixedly connected with a connecting shaft, and the outer wall of the connecting shaft is rotatably connected with the sleeve shaft, and the inner wall of the sleeve shaft is rotatably connected with the hinge shaft at a position away from the connecting shaft; one end of the hinge shaft is fixedly installed with a concave block, and a sleeve slider is fixedly connected to one side of the concave block, and the outer wall of the sleeve slider is slidably connected with a sliding frame; one side of the sleeve slider is provided with There is a transverse eccentric load testing mechanism, which includes a connecting block fixedly arranged on one side of the sleeve sliding block; a guide frame is fixedly connected to one side of the connecting block, and a support rod is fixedly connected to the inner wall of the guide frame, a sliding sleeve block is slidably connected to the outer wall of the support rod, and the sliding sleeve block and the guide frame are slidably connected; an adjustment bar is fixedly connected to one side of the sliding sleeve block, a transmission screw is fixedly connected to one side of the adjustment bar, a counterweight sleeve block is slidably connected to the outer wall of the transmission screw, a nut is rotatably connected to one side of the counterweight sleeve block, the nut and the transmission screw are threadedly connected, and two limit rings are provided under the sliding frame; a positioning docking assembly is installed on one side of the test platform.

2. The high-power motor durability test bench according to claim 1 is characterized in that: The inner wall of the guide sleeve and the outer wall of the limiting roller are both smooth surfaces, and the inner wall of the guide groove is also a smooth surface.

3. The high-power motor durability test bench according to claim 1 is characterized in that: The center point of the connecting shaft is higher than the center point of the hinge shaft, and the hinge block and the concave block are both rotatably connected to the sleeve shaft.

4. The high-power motor durability test bench according to claim 1 is characterized in that: The inner wall of the sleeve sliding block is slidably connected with a guide column, and the guide column is fixedly connected to the sliding frame.

5. The high-power motor durability test bench according to claim 1 is characterized in that: The other side of the test platform is fixedly connected with a controller; A sleeve block is fixedly connected to the outer wall of the concave block and located on one side adjacent to the sleeve slider, a battery is fixedly connected to the lower surface of the sleeve block, and a distance sensor is fixedly connected to one side of the battery; A sensing block is arranged above the distance sensor, and the sensing block is fixedly connected to the convex strip sleeve column.

6. The high-power motor durability test bench according to claim 1 is characterized in that: A concave plate is installed at the bottom end of the outer wall of the limiting ring, and the two limiting rings are fixedly connected to the concave plate, and a threaded sleeve block is fixedly connected to the bottom end of the concave plate; The inner wall of the threaded sleeve is threadedly connected with a linkage screw, the outer wall of the threaded sleeve is slidably connected with a support frame, and the support frame is fixedly connected to the test platform. One end of the support frame is fixedly connected with a transmission motor, and the transmission motor is used to drive the linkage screw to rotate.

7. The high-power motor durability test bench according to claim 1 is characterized in that: The guide frame is slidably connected to the slide frame, and the vertical cross-section of the support rod is circular.

8. The high-power motor durability test bench according to claim 1 is characterized by: The two limiting rings are symmetrically arranged with respect to the adjustment bar, and both the two limiting rings are slidably connected with the adjustment bar.

9. The high-power motor durability test bench according to claim 1 is characterized in that: The positioning docking assembly includes a bracket fixedly mounted on one side of the test platform; The top end of the bracket is fixedly connected to an extrusion electric cylinder, the output end of the extrusion electric cylinder is fixedly connected to a pressure sensor, the sensing end of the pressure sensor is fixedly connected to a linkage bar, the top end of the linkage bar is fixedly connected to a positioning plate, and the positioning plate is slidably connected to the test platform; A mounting plate is installed on the inner wall of the positioning plate, and the mounting plate is fixedly connected to the positioning plate by bolts. A high-power motor is fixedly installed on the top of the mounting plate, and the output end of the high-power motor is plugged into the inner wall of the convex sleeve column.

10. The high-power motor durability test bench according to claim 9, characterized in that: The pressure sensor is used to sense the extrusion force of the linkage bar, and the vertical cross-section of the linkage bar is L-shaped.

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