A motor performance testing platform

Abstract

The present invention provides a motor performance detection platform, which belongs to the field of motor detection technology. It solves the technical problems that the existing motor performance detection equipment has poor detection effect, single detection performance, and cannot simulate the actual use environment. It includes a detection box, a display control machine is provided on the front side of the detection box, a hot air machine and a cold air machine are provided on the back side of the detection box, and the hot air machine and the cold air machine are both connected to the detection box. A hand-held crane is provided on the upper side of the detection box, and two symmetrically arranged adjustment mechanisms are provided inside the detection box. The two adjustment mechanisms are provided with clamping mechanisms, and the two clamping mechanisms are symmetrically arranged. A towing torque detection mechanism is provided between the two adjustment mechanisms, and the towing torque detection mechanism is located in the middle of the two clamping mechanisms. The present invention can simulate different ambient temperature conditions, and stably detect and display the performance parameters of the motor when it is idling and unloaded and when the motor is subjected to a certain mechanical load through a towing experiment.

Description

Technical Field

[0001] The invention belongs to the technical field of motor detection, and relates to a motor performance detection platform. Background Art

[0002] The motor performance testing platform is an important tool for evaluating motor performance. Through scientific testing methods, the quality, efficiency and reliability of the motor can be ensured. Among them, the motor drag test is a common motor performance test method, which is mainly used to measure the mechanical characteristics of the motor, especially the performance under different load conditions.

[0003] The motor drag experiment is based on the law of electromagnetic induction and the working principle of the motor. In the motor, when current passes through the winding, it will generate torque in the magnetic field, driving the motor to move. The motor drag experiment connects the motor shaft to the load, so that the motor is subjected to a certain mechanical load, thereby generating corresponding torque.

[0004] However, the existing towing test has a single function, which is not convenient for testing motors of different specifications. It also cannot simulate different ambient temperature conditions and stably test the performance parameters of the motor.

[0005] Based on this, we propose a motor performance testing platform that can simulate different ambient temperature conditions and stably detect and display the performance parameters of the motor when it is idling and unloaded and when it is subjected to a certain mechanical load through a towing experiment. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a motor performance detection platform. The technical problem to be solved by the invention is: how to simulate different ambient temperature conditions and stably detect and display the performance parameters of the motor when it is idling and not loaded and when it is subjected to a certain mechanical load through a towing experiment.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A motor performance testing platform comprises a testing box, wherein a display control machine is arranged on the front side of the testing box, a hot air machine and a cold air machine are arranged on the rear side of the testing box, both the hot air machine and the cold air machine are connected to the testing box, a hand-held crane is arranged on the upper side of the testing box, two symmetrically arranged positioning mechanisms are arranged inside the testing box, clamping mechanisms are arranged on the two positioning mechanisms, the two clamping mechanisms are symmetrically arranged, a towing torque detection mechanism is arranged between the two positioning mechanisms, and the towing torque detection mechanism is located in the middle position of the two clamping mechanisms.

[0009] The working principle of the present invention is as follows: open the detection box, place the motor to be detected and the load generator on two clamping mechanisms respectively through a handheld crane, the clamping mechanisms clamp and lock the motor to be detected and the load generator respectively, and then the positioning mechanism drives the clamping mechanism to move, thereby first driving the motor to be detected and then driving the conveying shaft of the load generator to be inserted into the two ends of the drag torque detection mechanism respectively, and then the drag torque detection mechanism locks the conveying shafts of the motor to be detected and the load generator, and the motor to be detected and the load generator are energized. At this time, the load generator is a load, and the motor is first made to idle without load, and then the motor is subjected to a certain mechanical load, thereby generating a corresponding torque. According to Newton's second law, the product of torque and moment of inertia is equal to the product of angular acceleration and time. By measuring the torque and angular velocity (i.e., speed) of the motor, the performance parameters of the motor such as power and efficiency can be calculated; then the hot air unit is used to heat the air to simulate a high temperature environment, and the cold air unit is used to cool the air to simulate a low temperature environment, and then the performance parameters of the motor when it is idle without load and when the motor is subjected to a certain mechanical load under different ambient temperature conditions are measured; the display control machine controls the load intensity and displays various performance parameters.

[0010] The detection box includes a detection box body and an L-shaped sliding observation door. A placement port is provided on the front side of the detection box body. The display control machine is arranged on the front side of the detection box body, and the display control machine is located on the right side of the placement port. A sliding rail is fixed on the top of the detection box body. A sliding door motor is provided inside the detection box body. An adjusting screw is provided for rotation inside the detection box body. The output shaft of the sliding door motor is fixedly connected with the adjusting screw. The sliding door motor and the adjusting screw are located at the front lower side of the placement port. The upper end of the sliding observation door is slidingly arranged on the sliding rail. A screw seat is provided at the lower end of the sliding observation door. The screw seat cooperates with the adjusting screw in transmission. An air guide box is provided inside the detection box body. The air guide box is directly opposite to the drag torque detection mechanism. Both the hot air mechanism and the cold air mechanism are connected to the air guide box. A filter cotton layer is detachably provided inside the air guide box. Observation side doors are provided on the left and right sides of the detection box body. A plurality of temperature sensors are provided inside the detection box body.

[0011] With the above structure, the output shaft of the sliding door motor drives the adjusting screw to rotate, and the screw seat cooperates with the adjusting screw to drive the screw seat to move, thereby driving the sliding observation door to slide on the sliding rail. When the sliding observation door closes the placement port, the internal temperature is stabilized. The hot air mechanism and the cold air mechanism are both connected to the air guide box, and the hot air or cold air is injected into the air guide box. After being filtered through the filter cotton layer, clean and dry hot air or cold air is obtained and blown on the motor to be tested and the load generator on both sides of the drag torque detection mechanism to simulate different ambient temperatures; the temperature sensor is used to monitor the temperature inside the detection box, as well as the temperature of the motor to be tested and the load generator; the sliding observation door and the observation side door can both observe the experimental conditions inside the detection box.

[0012] The hot air mechanism consists of a fan 1 and a heating box, the air outlet of the fan 1 is connected to the air inlet of the heating box, the air outlet of the heating box is connected to the air guide box, and the cold air mechanism consists of a fan 2 and a refrigerator, the air outlet of the fan 2 is connected to the air inlet of the refrigerator, and the air outlet of the refrigerator is connected to the air guide box.

[0013] With the above structure, the first fan sucks air and injects air from the air outlet into the air inlet of the heating box to obtain hot air, and the hot air is injected into the air guide box from the air outlet of the heating box to simulate a high temperature environment; the second fan sucks air and injects air from the air outlet into the air inlet of the refrigerator to obtain cold air, and the cold air is injected into the air guide box from the air outlet of the refrigerator to simulate a low temperature environment.

[0014] The positioning mechanism includes a positioning base, which is fixed inside the detection box body. A longitudinal electric screw is provided below the positioning base. A movable frame is slidably provided on the positioning base. The movable frame is transmission-connected with the longitudinal electric screw. A transverse electric screw is provided on the movable frame. A movable plate is slidably provided on the movable frame. The transverse electric screw is transmission-connected with the movable plate. A vertical electric screw is provided on the movable plate. A mounting plate is slidably provided on the movable plate. The vertical electric screw is transmission-connected with the mounting plate.

[0015] With the above structure, the longitudinal moving electric screw drives the mobile frame to move longitudinally on the adjustment base, the transverse moving electric screw drives the mobile plate to move transversely on the mobile frame, and the vertical moving electric screw drives the mounting plate to move up and down on the mobile plate, so as to meet the position adjustment of motors to be tested of different sizes, align their output shafts and insert them into the drag torque detection mechanism.

[0016] The camming mechanism comprises a bottom plate, the bottom plate being fixed on the mounting plate, a pair of side seats and a pair of lifting cylinders being relatively arranged at a position near the mounting plate on the upper end surface of the bottom plate, two pairs of side seats and lifting cylinders being relatively arranged are arranged in sequence along the bottom plate toward the mounting plate at a position away from the mounting plate on the upper end surface of the bottom plate, each pair of relatively arranged lifting cylinders being located between each pair of relatively arranged side seats, a clamping cylinder being provided on the side seat, a clamping block being hinged on the upper end of the telescopic end of the clamping cylinder, two symmetrically arranged hinged side rods being hinged between the clamping block and the clamping cylinder, a connecting column being fixed on the upper end of the telescopic end of the lifting cylinder, a placing plate being provided on the upper end of all the connecting columns, an inclined seat and a limiting vertical plate being fixed at two corner positions of the upper end surface of the bottom plate near the mounting plate, the inclined seat being located on the side of the limiting vertical plate at the same position, a clamping cylinder being provided on the side of the inclined seat, a V-shaped clamping plate being detachably provided on the telescopic end of the clamping cylinder, and a plurality of vibration sensors being provided on the bottom plate.

[0017] By adopting the above structure, the motor to be tested and the load generator are respectively placed on the placement plates of the two clamping mechanisms, the telescopic end of the lifting cylinder drives the height of the adjusting connecting column, thereby driving the lifting and lowering of the placement plate, so as to meet the placement and clamping requirements of the motor to be tested and the load generator of different specifications and sizes, and the motor to be tested and the load generator are abutted against the two limit vertical plates at the corresponding positions, the telescopic end of the clamping cylinder drives the V-shaped clamping plate, and the V-shaped clamping plate abuts against the motor to be tested and the load generator, the telescopic end of the engaging cylinder is retracted, driving one end of the engaging block to move downward, and two symmetrically arranged hinged side rods are hinged between the engaging block and the engaging cylinder, thereby driving the other end of the engaging block to rise, after placing the motor to be tested and the load generator, the telescopic end of the engaging cylinder is lifted, driving one end of the engaging block to move upward, thereby driving the other end of the engaging block to move downward, abutting against the motor to be tested and the load generator, and cooperating with the placement plate to stably clamp the motor to be tested and the load generator.

[0018] The drag torque detection mechanism includes a mounting frame and two connecting tubes. The mounting frame is fixed between two adjustment bases. A mounting seat is provided in the middle of the upper end of the mounting frame. A torque detection sensor is provided at the upper end of the mounting seat. Fixed rings are fixed at both ends of the connecting tube. A hinged ring is hinged on the fixing ring. A hinged screw is hinged on the hinged ring. A locking nut is screwed on the hinged screw. The two connecting tubes are respectively inserted into the detection shafts on both sides of the torque detection sensor. The inner fixing ring and the hinged ring are locked on the detection shaft through the cooperation of the hinged screw and the locking nut. A pressure sensor is provided inside the connecting tube.

[0019] With the above structure, the two connecting tubes are respectively inserted into the detection shafts on both sides of the torque detection sensor, and the inner fixing ring and the hinged ring are locked on the detection shaft through the cooperation of the hinged screw and the locking nut. The output shafts of the motor to be detected and the load generator are inserted into the connecting tube and abut against the pressure sensor. When the pressure sensor detects that the pressure reaches a certain level, the insertion of the output shafts of the motor to be detected and the load generator is stopped, and then the inner fixing ring and the hinged ring are locked on the output shafts of the motor to be detected and the load generator through the cooperation of the hinged screw and the locking nut, thereby completing the connection between the output shafts of the motor to be detected and the load generator and the drag torque detection mechanism.

[0020] The handheld crane comprises a rotating seat, an auxiliary driving rod and a lifting rod. The rotating seat is fixed above the detection box body. An installation box is rotatably provided on the rotating seat. A gear box is fixed below the installation box. An adjusting motor is fixed on the gear box. The output shaft of the adjusting motor extends into the gear box. A transmission gear is fixed on the output shaft of the adjusting motor. A rack lifting rod is slidably provided inside the gear box. The transmission gear is meshed with the rack lifting rod. A tension sensor is provided on the rack lifting rod. Two symmetrically arranged limiting sliding sleeve frames are fixed on the installation box. A moving shaft is slidably provided between the two limiting sliding sleeve frames. An active rod is hinged at the middle position of the moving shaft. The rack lifting rod is hinged at the middle position of the moving shaft, and both ends of the moving shaft are hinged with counterweight connecting rods, one end of the counterweight connecting rod is fixed with a counterweight block, a coupling shaft is fixed on the active rod, and the other end of the counterweight connecting rod is respectively hinged at both ends of the coupling shaft, and both ends of the coupling shaft are hinged with side connecting rods, one end of the auxiliary moving rod is hinged to the two side connecting rods through a hinge shaft, and both ends of the hinge shaft are rotatably provided with rotating wheels, which abut against the upper end of the installation box, one end of the lifting rod is hinged to the end of the active rod, and the lifting rod is hinged to the other end of the auxiliary moving rod, a handle is fixed on the other end of the lifting rod, and a hook is rotatably provided at the other end of the lifting rod.

[0021] By adopting the above structure, the user holds the handle and pulls the lifting rod downward. The tension sensor detects the change of tension and controls the operation of the adjusting motor. The output shaft of the adjusting motor drives the transmission gear to rotate. The transmission gear meshes with the rack lifting rod, driving the rack lifting rod to move upward. The rack lifting rod drives the moving shaft to slide upward between the two limited sliding sleeve frames, and the moving shaft drives the active rod to move upward, thereby cooperating with the side connecting rod and the lifting rod respectively through the active rod and the auxiliary moving rod. The rotating wheel always contacts the upper end of the installation box, driving the other end of the lifting rod to move downward, thereby moving the hook downward and hanging on the lifting ring of the motor to be tested and the load generator. Then the user holds the handle and pulls upward and moves the lifting rod. At this time, the installation box rotates on the rotating seat to move the motor to be tested and the load generator to an appropriate position. The counterweight connecting rod, the counterweight block, the moving shaft and the coupling cooperate to stabilize the counterweight, thereby ensuring the stable movement of the motor to be tested and the load generator.

[0022] The display and control machine includes an industrial computer, a test power supply system, a test control system, a sensor and signal conditioning module, a data acquisition module, a numerical calculation processing module, a graphic display screen and a software operation chassis. The software operation chassis is arranged on the front side of the detection box body, the graphic display screen is arranged on the software operation chassis, and the industrial computer, the test power supply system, the test control system, the sensor and signal conditioning module, the data acquisition module and the numerical calculation processing module are arranged inside the software operation chassis; the test control system is used to control the start and end of the test process; the test power supply system provides the required voltage and current; the sensor and signal conditioning module is used to collect and condition various signals during the operation of the motor; the data acquisition module is used to collect and store test data in real time; the numerical calculation processing module calculates and processes the collected data to obtain test results; the graphic display screen provides an intuitive graphical interface for users to view the test results, and control buttons are provided on the software operation chassis for users to operate and view the test results.

[0023] Compared with the existing technology, this motor performance testing platform has the following advantages:

[0024] Through the cooperation of the detection box with the hot air mechanism and the cold air mechanism, the performance parameters of the motor when it is idling without load and under certain mechanical load under different ambient temperature conditions can be simulated and measured;

[0025] Use a handheld crane to stably place the motor to be tested and the load generator on two clamping mechanisms respectively;

[0026] The motor to be tested and the load generator are stably clamped by the clamping mechanism, and the conveying shafts of the motor to be tested and the load generator are driven to be inserted into the two ends of the drag torque detection mechanism in cooperation with the positioning mechanism;

[0027] The torque detection mechanism is used to lock the conveying shafts of the motor to be detected and the load generator, and cooperate with the display control machine to detect the performance parameters of the motor when it is idling and unloaded and when it is subjected to a certain mechanical load. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when the door is closed.

[0029] Figure 2 It is a three-dimensional structural schematic diagram of the present invention when the door is opened.

[0030] Figure 3 It is a three-dimensional structural schematic diagram of some components in the present invention.

[0031] Figure 4 It is a structural schematic diagram of the positioning mechanism and the clamping mechanism in the present invention.

[0032] Figure 5 It is a structural schematic diagram of the clamping mechanism in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the drag torque detection mechanism in the present invention.

[0034] Figure 7 It is a structural schematic diagram of the handheld crane in the present invention.

[0035] In the figure, 1, detection box; 2, display control machine; 3, hand-held crane; 4, hot air parts; 5, cold air parts; 6, adjustment mechanism; 7, clamping mechanism; 8, drag torque detection mechanism; 9, detection box body; 10, sliding observation door; 11, observation side door; 12, air guide box; 13, sliding rail; 14, adjustment base; 15, longitudinal electric screw rod; 16, moving frame; 17, transverse electric screw rod; 18, moving plate; 19, vertical electric screw rod; 20, mounting plate; 21, placement plate; 22, inclined seat; 23, clamping cylinder; 24, V-type clamping plate; 25, limit vertical plate; 26, side seat; 2 7. Clamping block; 28. Clamping cylinder; 29. ​​Articulated side rod; 30. Lifting cylinder; 31. Connecting column; 32. Bottom plate; 33. Mounting frame; 34. Mounting seat; 35. Torque detection sensor; 36. Connecting tube; 37. Fixing ring; 38. Articulated ring; 39. Locking nut; 40. Rack lifting rod; 41. Gear box; 42. Adjusting motor; 43. Counterweight block; 44. Counterweight connecting rod; 45. Limiting sliding sleeve frame; 46. Active rod; 47. Side connecting rod; 48. Auxiliary driving rod; 49. Lifting rod; 50. Handle; 51. Hook; 52. Turntable; 53. Mounting box; 54. Rotating seat. DETAILED DESCRIPTION

[0036] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0037] like Figure 1-Figure 7 As shown, the motor performance testing platform includes a testing box 1, a display control machine 2 is provided on the front side of the testing box 1, a hot air machine 4 and a cold air machine 5 are provided on the rear side of the testing box 1, both of the hot air machine 4 and the cold air machine 5 are connected to the testing box 1, a hand-held crane 3 is provided on the upper side of the testing box 1, two symmetrically arranged positioning mechanisms 6 are provided inside the testing box 1, clamping mechanisms 7 are provided on the two positioning mechanisms 6, the two clamping mechanisms 7 are symmetrically arranged, a towing torque detection mechanism 8 is provided between the two positioning mechanisms 6, and the towing torque detection mechanism 8 is located in the middle position of the two clamping mechanisms 7.

[0038] Open the test box 1, and place the motor to be tested and the load generator on the two clamping mechanisms 7 respectively through the handheld crane 3. The clamping mechanisms 7 clamp and lock the motor to be tested and the load generator respectively. Then the positioning mechanism 6 drives the clamping mechanism 7 to move, so as to first drive the motor to be tested and then drive the conveying shaft of the load generator to be inserted into the two ends of the drag torque detection mechanism 8 respectively, and then the drag torque detection mechanism 8 locks the conveying shaft of the motor to be tested and the load generator. The motor to be tested and the load generator are powered on. At this time, the load generator is loaded. First, the motor is idle without load, and then the motor is powered on. The motor is subjected to a certain mechanical load, thereby generating a corresponding torque. According to Newton's second law, the product of torque and moment of inertia is equal to the product of angular acceleration and time. By measuring the torque and angular velocity (i.e., speed) of the motor, the performance parameters of the motor, such as power and efficiency, can be calculated; then, the air is heated by the hot air unit 4 to simulate a high temperature environment, and the air is cooled by the cold air unit 5 to simulate a low temperature environment, and then the performance parameters of the motor when idling without load and when the motor is subjected to a certain mechanical load are measured under different ambient temperature conditions; the display controller 2 controls the load intensity and displays various performance parameters.

[0039] The detection box 1 includes a detection box body 9 and an L-shaped sliding observation door 10. The front side of the detection box body 9 is provided with a placement port, the display control machine 2 is arranged on the front side of the detection box body 9, and the display control machine 2 is located on the right side of the placement port, a sliding rail 13 is fixed on the top of the detection box body 9, a sliding door motor is arranged inside the detection box body 9, an adjusting screw is arranged inside the detection box body 9 for rotation, the output shaft of the sliding door motor is fixedly connected with the adjusting screw, the sliding door motor and the adjusting screw are located at the front lower side of the placement port, the upper end of the sliding observation door 10 is slidably arranged on the sliding rail 13, the lower end of the sliding observation door 10 is provided with a screw seat, the screw seat and the adjusting screw are transmission-coordinated, an air guide box 12 is arranged inside the detection box body 9, the air guide box 12 is directly opposite to the drag torque detection mechanism 8, the hot air machine 4 and the cold air machine 5 are both connected to the air guide box 12, the interior of the air guide box 12 is detachably provided with a filter cotton layer, observation side doors 11 are arranged on the left and right sides of the detection box body 9, and a plurality of temperature sensors are arranged inside the detection box body 9.

[0040] The output shaft of the sliding door motor drives the adjusting screw to rotate, and the screw seat cooperates with the adjusting screw to drive the screw seat to move, thereby driving the sliding observation door 10 to slide on the sliding rail 13. When the sliding observation door 10 closes the placement port, the internal temperature is stabilized. The hot air mechanism 4 and the cold air mechanism 5 are both connected to the air guide box 12, and the hot air or cold air is injected into the air guide box 12. After filtering through the filter cotton layer, clean and dry hot air or cold air is obtained and blown on the motor to be tested and the load generator on both sides of the drag torque detection mechanism 8 to simulate different ambient temperatures; the temperature sensor is used to monitor the temperature inside the detection box 1, as well as the temperature of the motor to be tested and the load generator; the sliding observation door 10 and the observation side door 11 can both observe the experimental conditions inside the detection box 1.

[0041] The hot air mechanism 4 consists of a fan 1 and a heating box, the air outlet of the fan 1 is connected to the air inlet of the heating box, the air outlet of the heating box is connected to the air guide box 12, and the cold air mechanism 5 consists of a fan 2 and a refrigerator, the air outlet of the fan 2 is connected to the air inlet of the refrigerator, and the air outlet of the refrigerator is connected to the air guide box 12.

[0042] The first fan sucks air and injects air from the air outlet into the air inlet of the heating box to obtain hot air, and the hot air is injected into the air guide box 12 from the air outlet of the heating box to simulate a high temperature environment; the second fan sucks air and injects air from the air outlet into the air inlet of the refrigerator to obtain cold air, and the cold air is injected into the air guide box 12 from the air outlet of the refrigerator to simulate a low temperature environment.

[0043] The positioning mechanism 6 includes a positioning base 14, which is fixed inside the detection box body 9. A longitudinal electric screw 15 is provided below the positioning base 14. A moving frame 16 is slidably provided on the positioning base 14. The moving frame 16 is transmission-connected to the longitudinal electric screw 15. A transverse electric screw 17 is provided on the moving frame 16. A moving plate 18 is slidably provided on the moving frame 16. The transverse electric screw 17 is transmission-connected to the moving plate 18. A vertical electric screw 19 is provided on the moving plate 18. A mounting plate 20 is slidably provided on the moving plate 18. The vertical electric screw 19 is transmission-connected to the mounting plate 20.

[0044] The longitudinal moving electric screw 15 drives the moving frame 16 to move longitudinally on the positioning base 14, the transverse moving electric screw 17 drives the moving plate 18 to move laterally on the moving frame 16, and the vertical moving electric screw 19 drives the mounting plate 20 to move up and down on the moving plate 18, so as to meet the position adjustment of the motors to be tested of different sizes, so that their output shafts are aligned and inserted into the drag torque detection mechanism 8.

[0045] The clamping mechanism 7 includes a bottom plate 32, which is fixed on the mounting plate 20. A pair of side seats 26 and a pair of lifting cylinders 30 are provided at the upper end surface of the bottom plate 32 near the mounting plate 20. Two pairs of side seats 26 and lifting cylinders 30 are provided in sequence along the bottom plate 32 toward the mounting plate 20 from the upper end surface of the bottom plate 32 away from the mounting plate 20. Each pair of lifting cylinders 30 is located between each pair of side seats 26. The side seats 26 are provided with a clamping cylinder 28. The upper end of the telescopic end of the clamping cylinder 28 is hinged with a clamping block. 27, two symmetrically arranged hinged side rods 29 are hinged between the locking block 27 and the locking cylinder 28, a connecting column 31 is fixed to the upper end of the telescopic end of the lifting cylinder 30, a placing plate 21 is provided at the upper end of all the connecting columns 31, an inclined seat 22 and a limiting vertical plate 25 are fixed to the upper end surface of the bottom plate 32 near the two corners of the mounting plate 20, the inclined seat 22 is located on the side of the limiting vertical plate 25 at the same position, a clamping cylinder 23 is provided on the side of the inclined seat 22, a V-shaped clamping plate 24 is detachably provided on the telescopic end of the clamping cylinder 23, and a plurality of vibration sensors are provided on the bottom plate 32.

[0046] The motor to be tested and the load generator are placed on the placement plates 21 of the two clamping mechanisms 7 respectively. The telescopic end of the lifting cylinder 30 drives the height of the adjusting connecting column 31, thereby driving the placement plate 21 to rise and fall, so as to meet the placement and clamping requirements of the motor to be tested and the load generator of different specifications and sizes. The motor to be tested and the load generator are abutted against the two limit vertical plates 25 at the corresponding positions. The telescopic end of the clamping cylinder 23 drives the V-shaped clamping plate 24, and the V-shaped clamping plate 24 abuts against the motor to be tested and the load generator, and engages. The telescopic end of the cylinder 28 is retracted, driving one end of the engaging block 27 to move downward. Two symmetrically arranged hinged side rods 29 are hinged between the engaging block 27 and the engaging cylinder 28, thereby driving the other end of the engaging block 27 to rise. After the motor to be tested and the load generator are placed, the telescopic end of the engaging cylinder 28 is raised, driving one end of the engaging block 27 to move upward, thereby driving the other end of the engaging block 27 to move downward, abutting against the motor to be tested and the load generator, and cooperating with the placement plate 21 to stably clamp the motor to be tested and the load generator.

[0047] The towing torque detection mechanism 8 includes a mounting frame 33 and two connecting tubes 36. The mounting frame 33 is fixed between the two adjustment bases 14. A mounting seat 34 is provided in the middle of the upper end of the mounting frame 33. A torque detection sensor 35 is provided at the upper end of the mounting seat 34. Fixed rings 37 are fixed at both ends of the connecting tube 36. A hinge ring 38 is hinged on the fixing ring 37. A hinge screw is hinged on the hinge ring 38. A locking nut 39 is screwed on the hinge screw. The two connecting tubes 36 are respectively inserted into the detection shafts on both sides of the torque detection sensor 35. The inner fixing ring 37 and the hinge ring 38 are locked on the detection shaft through the cooperation of the hinge screw and the locking nut 39. A pressure sensor is provided inside the connecting tube 36.

[0048] The two connecting tubes 36 are respectively inserted into the detection shafts on both sides of the torque detection sensor 35. The inner fixing ring 37 and the hinge ring 38 are locked on the detection shaft through the cooperation of the hinge screw and the locking nut 39. The output shafts of the motor to be detected and the load generator are inserted into the connecting tube 36 and abut against the pressure sensor. When the pressure sensor detects that the pressure reaches a certain level, the insertion of the output shafts of the motor to be detected and the load generator is stopped. Then, the inner fixing ring 37 and the hinge ring 38 are locked on the output shafts of the motor to be detected and the load generator through the cooperation of the hinge screw and the locking nut 39, thereby completing the connection between the output shafts of the motor to be detected and the load generator and the drag torque detection mechanism 8.

[0049] The hand-held crane 3 includes a rotating seat 54, an auxiliary driving rod 48 and a lifting rod 49. The rotating seat 54 is fixed above the detection box body 9. A mounting box 53 is rotatably provided on the rotating seat 54. A gear box 41 is fixed below the mounting box 53. An adjusting motor 42 is fixed on the gear box 41. The output shaft of the adjusting motor 42 extends into the gear box 41. A transmission gear is fixed on the output shaft of the adjusting motor 42. A rack lifting rod 40 is slidably provided inside the gear box 41. The transmission gear is engaged with the rack lifting rod 40. A tension sensor is provided on the rack lifting rod 40. Two symmetrically arranged limiting sliding sleeve frames 45 are fixed on the mounting box 53. A moving shaft is slidably provided between the two limiting sliding sleeve frames 45. An active rod 46 is hinged at the middle position of the moving shaft , and the rack lifting rod 40 is hinged at the middle position of the moving shaft, and the two ends of the moving shaft are hinged with counterweight connecting rods 44, and one end of the counterweight connecting rod 44 is fixed with a counterweight block 43, and a coupling is fixed on the active rod 46, and the other end of the counterweight connecting rod 44 is respectively hinged at the two ends of the coupling, and the two ends of the coupling are hinged with side connecting rods 47, one end of the auxiliary driving rod 48 is hinged with the two side connecting rods 47 through a hinge shaft, and both ends of the hinge shaft are rotatably provided with a rotating wheel 52, and the rotating wheel 52 abuts against the upper end of the installation box 53, one end of the lifting rod 49 is hinged at the end of the active rod 46, and the lifting rod 49 is hinged at the other end of the auxiliary driving rod 48, and the other end of the lifting rod 49 is fixed with a handle 50, and the other end of the lifting rod 49 is rotatably provided with a hook 51.

[0050] The user holds the handle 50 and pulls the suspension rod 49 downward. The tension sensor detects the change of tension and controls the adjustment motor 42 to work. The output shaft of the adjustment motor 42 drives the transmission gear to rotate. The transmission gear meshes with the rack lifting rod 40, driving the rack lifting rod 40 to move upward. The rack lifting rod 40 drives the moving shaft to slide upward between the two limiting sliding sleeve frames 45. The moving shaft drives the active rod 46 to move upward, so that the active rod 46 and the auxiliary moving rod 48 cooperate with the side connecting rod 47 and the suspension rod 49 respectively, and the rotating wheel 52 It always contacts the upper end of the installation box 53, driving the other end of the lifting rod 49 to move downward, thereby moving the hook 51 downward and hanging it on the lifting rings of the motor to be tested and the load generator. Then the user holds the handle 50, pulls upward and moves the lifting rod 49. At this time, the installation box 53 rotates on the rotating seat 54, moving the motor to be tested and the load generator to an appropriate position. The counterweight connecting rod 44, the counterweight block 43, the moving shaft and the coupling cooperate to make the counterweight block 43 stable and ensure the stable movement of the motor to be tested and the load generator.

[0051] The display control machine 2 includes an industrial computer, a test power supply system, a test control system, a sensor and signal conditioning module, a data acquisition module, a numerical calculation processing module, a graphic display screen and a software operation chassis. The software operation chassis is arranged on the front side of the detection box body 9, and the graphic display screen is arranged on the software operation chassis. The industrial computer, the test power supply system, the test control system, the sensor and signal conditioning module, the data acquisition module and the numerical calculation processing module are arranged inside the software operation chassis; the test control system is used to control the start and end of the test process; the test power supply system provides the required voltage and current; the sensor and signal conditioning module is used to collect and condition various signals during the operation of the motor; the data acquisition module is used to collect and store test data in real time; the numerical calculation processing module calculates and processes the collected data to obtain test results; the graphic display screen provides an intuitive graphical interface for users to view the test results, and control buttons are provided on the software operation chassis for users to operate and view the test results.

[0052] The working principle of the present invention is as follows: two connecting cylinders 36 are respectively inserted into the detection shafts on both sides of the torque detection sensor 35, and the inner fixing ring 37 and the hinge ring 38 are locked on the detection shaft through the cooperation of the hinge screw and the locking nut 39;

[0053] The output shaft of the sliding door motor drives the adjusting screw to rotate, and the screw seat cooperates with the adjusting screw to drive the screw seat to move, and then drives the sliding observation door 10 to slide on the sliding rail 13, and the sliding observation door 10 is opened to expose the placement opening;

[0054] The user holds the handle 50 and pulls the suspension rod 49 downward. The tension sensor detects the change in tension and controls the adjustment motor 42 to work. The output shaft of the adjustment motor 42 drives the transmission gear to rotate. The transmission gear meshes with the rack lifting rod 40, driving the rack lifting rod 40 to move upward. The rack lifting rod 40 drives the moving shaft to slide upward between the two limiting sliding sleeve frames 45, and the moving shaft drives the active rod 46 to move upward, so that the active rod 46 and the auxiliary moving rod 48 cooperate with the side connecting rod 47 and the suspension rod 49 respectively, and the rotating wheel 52 always contacts the installation The upper end of the box 53 drives the other end of the hanging rod 49 to move downward, so that the hook 51 is moved downward and hung on the hanging rings of the motor to be tested and the load generator. Then the user holds the handle 50, pulls up and moves the hanging rod 49. At this time, the installation box 53 rotates on the rotating seat 54, and the motor to be tested and the load generator are moved to the appropriate position. The counterweight connecting rod 44, the counterweight block 43, the moving shaft and the coupling cooperate to make the counterweight block 43 stable and place the motor to be tested and the load generator on the placement plates 21 of the two clamping mechanisms 7 respectively;

[0055] The telescopic end of the lifting cylinder 30 drives the height of the adjusting connecting column 31, thereby driving the placement plate 21 to rise and fall, so as to meet the placement and clamping requirements of the motor to be tested and the load generator of different specifications and sizes, and the motor to be tested and the load generator are used to abut against the two limit vertical plates 25 at the corresponding positions, and the telescopic end of the clamping cylinder 23 drives the V-shaped clamping plate 24, and the V-shaped clamping plate 24 abuts against the motor to be tested and the load generator, and the telescopic end of the clamping cylinder 28 rises, driving one end of the clamping block 27 to move up, thereby driving the other end of the clamping block 27 to move down, abut against the motor to be tested and the load generator, and cooperate with the placement plate 21 to stably clamp and lock the motor to be tested and the load generator;

[0056] Then the positioning mechanism 6 drives the clamping mechanism 7 to move, the longitudinal electric screw 15 drives the moving frame 16 to move longitudinally on the positioning base 14, the transverse electric screw 17 drives the moving plate 18 to move laterally on the moving frame 16, and the vertical electric screw 19 drives the mounting plate 20 to move up and down on the moving plate 18 to meet the position adjustment of motors to be tested of different sizes, thereby first driving the conveying shaft of the motor to be tested and then driving the load generator to be inserted into the two ends of the towing torque detection mechanism 8 respectively, that is, the output shafts of the motor to be tested and the load generator are inserted into the connecting tube 36 and abut against the pressure sensor. When the pressure sensor detects that the pressure reaches a certain level, the insertion of the output shafts of the motor to be tested and the load generator is stopped; then, the inner fixing ring 37 and the hinge ring 38 are locked to the output shafts of the motor to be tested and the load generator through the cooperation of the hinge screw and the locking nut 39, so as to complete the connection between the output shafts of the motor to be tested and the load generator and the towing torque detection mechanism 8;

[0057] The motor to be tested and the load generator are powered on. At this time, the load generator is the load. The motor is first made to run idle without load, and then subjected to a certain mechanical load, thereby generating a corresponding torque. According to Newton's second law, the product of torque and moment of inertia is equal to the product of angular acceleration and time. By measuring the torque and angular velocity (i.e., speed) of the motor, the performance parameters of the motor, such as power and efficiency, can be calculated.

[0058] The first fan sucks air and injects the air from the air outlet into the air inlet of the heating box to obtain hot air, which is then injected into the air guide box 12 from the air outlet blown into the heating box to simulate a high temperature environment; the second fan sucks air and injects the air from the air outlet into the air inlet of the refrigerator to obtain cold air, which is then injected into the air guide box 12 from the air outlet blown into the refrigerator to simulate a low temperature environment, and then measures the performance parameters of the motor when it is idling without load and when it is subjected to a certain mechanical load under different ambient temperature conditions; the display controller 2 controls the load intensity and displays various performance parameters, that is, the test control system is used to control the start and end of the test process; the test power supply system provides the required voltage and current; the sensor and signal conditioning module are used to collect and condition various signals during the operation of the motor; the data acquisition module is used to collect and store test data in real time; the numerical calculation processing module calculates and processes the collected data to obtain test results; the graphic display screen provides an intuitive graphical interface for users to view test results, and control buttons are provided on the software operation chassis for users to operate and view test results.

[0059] In summary, by cooperating with the detection box 1, the hot air mechanism 4 and the cold air mechanism 5, the performance parameters of the motor idling without load and the motor bearing a certain mechanical load under different ambient temperature conditions can be simulated and measured;

[0060] Use the handheld crane 3 to stably place the motor to be tested and the load generator on the two clamping mechanisms 7 respectively;

[0061] The motor to be tested and the load generator are stably clamped by the clamping mechanism 7, and cooperate with the positioning mechanism 6 to drive the conveying shafts of the motor to be tested and the load generator to be inserted into the two ends of the drag torque detection mechanism 8 respectively;

[0062] The torque detection mechanism 8 is used to lock the conveying shafts of the motor to be detected and the load generator, and cooperate with the display controller 2 to detect the performance parameters of the motor when it is idling and unloaded and when it is subjected to a certain mechanical load.

[0063] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A motor performance testing platform, comprising a testing box (1), characterized in that: The front side of the detection box (1) is provided with a display control machine (2), the rear side of the detection box (1) is provided with a hot air machine (4) and a cold air machine (5), both of which are connected to the detection box (1), the upper side of the detection box (1) is provided with a hand-held crane (3), the interior of the detection box (1) is provided with two symmetrically arranged positioning mechanisms (6), both of which are provided with clamping mechanisms (7), the two clamping mechanisms (7) are symmetrically arranged, a drag torque detection mechanism (8) is provided between the two positioning mechanisms (6), and the drag torque detection mechanism (8) is located in the middle of the two clamping mechanisms (7); The positioning mechanism (6) comprises a positioning base (14), a longitudinal moving electric screw (15) is provided below the positioning base (14), a moving frame (16) is slidably provided on the positioning base (14), the moving frame (16) is in driving connection with the longitudinal moving electric screw (15), a transverse moving electric screw (17) is provided on the moving frame (16), a moving plate (18) is slidably provided on the moving frame (16), the transverse moving electric screw (17) is in driving connection with the moving plate (18), a vertical moving electric screw (19) is provided on the moving plate (18), a mounting plate (20) is slidably provided on the moving plate (18), and the vertical moving electric screw (19) is in driving connection with the mounting plate (20); The clamping mechanism (7) comprises a bottom plate (32), the bottom plate (32) being fixed on the mounting plate (20), a pair of side seats (26) and a pair of lifting cylinders (30) being arranged opposite to each other at a position of the upper end surface of the bottom plate (32) close to the mounting plate (20), two pairs of side seats (26) and lifting cylinders (30) being arranged opposite to each other in sequence along the direction from the bottom plate (32) to the mounting plate (20), each pair of lifting cylinders (30) being arranged opposite to each other is located between each pair of side seats (26), each side seat (26) is provided with a locking cylinder (28), and the upper end of the telescopic end of the locking cylinder (28) is hinged with a locking cylinder (28). A block (27), two symmetrically arranged hinged side rods (29) are hingedly connected between the locking block (27) and the locking cylinder (28), a connecting column (31) is fixed to the upper end of the telescopic end of the lifting cylinder (30), a placing plate (21) is provided at the upper end of all the connecting columns (31), an inclined seat (22) and a limiting vertical plate (25) are fixed to the upper end surface of the bottom plate (32) at two corners close to the mounting plate (20), the inclined seat (22) is located on the side of the limiting vertical plate (25) at the same position, a clamping cylinder (23) is provided on the side of the inclined seat (22), a V-shaped clamping plate (24) is detachably provided on the telescopic end of the clamping cylinder (23), and a plurality of vibration sensors are provided on the bottom plate (32); The drag torque detection mechanism (8) comprises a mounting frame (33) and two connecting tubes (36); the mounting frame (33) is fixed between two position adjustment bases (14); a mounting seat (34) is provided at the middle of the upper end of the mounting frame (33); a torque detection sensor (35) is provided at the upper end of the mounting seat (34); fixing rings (37) are fixed at both ends of the connecting tube (36); a hinge ring (38) is hingedly connected to the fixing ring (37); a hinge screw is hingedly connected to the hinge ring (38); a locking nut (39) is screwed to the hinge screw; the two connecting tubes (36) are respectively inserted into the detection shafts on both sides of the torque detection sensor (35); the fixing ring (37) and the hinge ring (38) on the inner side are locked to the detection shaft by the cooperation of the hinge screw and the locking nut (39); and a pressure sensor is provided inside the connecting tube (36).

2. A motor performance testing platform according to claim 1, characterized in that: The detection box (1) comprises a detection box body (9) and an L-shaped sliding observation door (10); a placement opening is provided on the front side of the detection box body (9); a display control machine (2) is arranged on the front side of the detection box body (9), and the display control machine (2) is located on the right side of the placement opening; a sliding rail (13) is fixed above the detection box body (9); a sliding door motor is provided inside the detection box body (9); an adjusting screw is rotatably provided inside the detection box body (9); an output shaft of the sliding door motor is fixedly connected to the adjusting screw; the sliding door motor and the adjusting screw are located below the front side of the placement opening; and the sliding door motor and the adjusting screw are located below the front side of the placement opening. The upper end of the sliding observation door (10) is slidably arranged on the sliding rail (13), the lower end of the sliding observation door (10) is provided with a screw seat, the screw seat is transmission-coordinated with the adjusting screw rod, an air guide box (12) is provided inside the detection box body (9), the air guide box (12) is directly opposite to the drag torque detection mechanism (8), the hot air mechanism (4) and the cold air mechanism (5) are both connected to the air guide box (12), a filter cotton layer is detachably provided inside the air guide box (12), observation side doors (11) are provided on both left and right sides of the detection box body (9), and a plurality of temperature sensors are provided inside the detection box body (9).

3. A motor performance testing platform according to claim 2, characterized in that: The hot air mechanism (4) is composed of a fan 1 and a heating box, the air outlet of the fan 1 is connected to the air inlet of the heating box, the air outlet of the heating box is connected to the air guide box (12), the cold air mechanism (5) is composed of a fan 2 and a refrigerator, the air outlet of the fan 2 is connected to the air inlet of the refrigerator, the air outlet of the refrigerator is connected to the air guide box (12); the positioning base (14) is fixed inside the detection box body (9).

4. A motor performance testing platform according to claim 3, characterized in that: The handheld crane (3) comprises a rotating seat (54), an auxiliary driving rod (48) and a lifting rod (49); the rotating seat (54) is fixed above the detection box body (9); a mounting box (53) is rotatably provided on the rotating seat (54); a gear box (41) is fixed below the mounting box (53); an adjusting motor (42) is fixed on the gear box (41); an output shaft of the adjusting motor (42) extends into the gear box (41); a transmission gear is fixed on the output shaft of the adjusting motor (42); a rack lifting rod (40) is slidably provided inside the gear box (41); the transmission gear meshes with the rack lifting rod (40); a tension sensor is provided on the rack lifting rod (40); two symmetrically arranged limiting sliding sleeve frames (45) are fixed on the mounting box (53); a moving shaft is slidably provided between the two limiting sliding sleeve frames (45); an active rod is hinged at the middle position of the moving shaft (46), and the rack lifting rod (40) is hinged at the middle position of the moving shaft, and the two ends of the moving shaft are hinged with counterweight connecting rods (44), and one end of the counterweight connecting rod (44) is fixed with a counterweight block (43), a coupling shaft is fixed on the active rod (46), and the other end of the counterweight connecting rod (44) is respectively hinged at the two ends of the coupling shaft, and the two ends of the coupling shaft are hinged with side connecting rods (47), one end of the auxiliary driving rod (48) is hinged with the two side connecting rods (47) through a hinge shaft, and both ends of the hinge shaft are rotatably provided with a rotating wheel (52), and the rotating wheel (52) abuts against the upper end of the installation box (53), one end of the lifting rod (49) is hinged at the end of the active rod (46), and the lifting rod (49) is hinged at the other end of the auxiliary driving rod (48), a handle (50) is fixed at the other end of the lifting rod (49), and a hook (51) is rotatably provided at the other end of the lifting rod (49).

5. The motor performance testing platform according to claim 4, characterized in that: The display control machine (2) comprises an industrial computer, a test power supply system, a test control system, a sensor and signal conditioning module, a data acquisition module, a numerical calculation processing module, a graphic display screen and a software operation chassis, wherein the software operation chassis is arranged on the front side of the test box body (9), the graphic display screen is arranged on the software operation chassis, and the industrial computer, the test power supply system, the test control system, the sensor and signal conditioning module, the data acquisition module and the numerical calculation processing module are arranged inside the software operation chassis; the test control system is used to control the start and end of the test process; the test power supply system provides the required voltage and current; the sensor and signal conditioning module is used to collect and condition various signals during the operation of the motor; The data acquisition module is used to collect and store test data in real time; the numerical calculation processing module calculates and processes the collected data to obtain test results; the graphic display screen provides an intuitive graphical interface for users to view test results, and control buttons are provided on the software operation chassis to facilitate users to operate and view test results.

Images