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Motor equipment performance testing device

A technology for testing devices and motor equipment, which is applied in the direction of motor generator testing, measuring devices, measuring device casings, etc. It can solve problems such as cumbersome process, single motor load form, and reduce the speed of the test motor to achieve the effect of increasing running resistance

Active Publication Date: 2022-08-05
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a performance testing device for motor equipment, which can simplify the operation steps when testing the performance of the motor, improve the speed of testing the performance of the motor, and can apply load forces of different sizes and directions to the motor , and then can test the mechanical properties of the motor from multiple angles, which solves the need to connect different load loading devices when testing the performance of the motor. The connection process requires multiple disassembly and transfer of the motor. The process is cumbersome and reduces the speed of the test motor. In addition, the form of the motor load is relatively simple, and it is impossible to change the direction of the load force acting on the motor shaft

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Refer to the attached Figure 1-8, a performance testing device for electrical equipment, comprising a base 8, a speed sensor 40, a vibration sensor 26, a pressure sensor 29, an electromagnet 12, a casing 1, a casing 2 and a cover plate 3, and the center of the upper end of the cover plate 3 passes through a circular opening A sleeve 7 is fixedly connected, and a load mechanism is connected in the sleeve 7. The load mechanism is used to connect to the output shaft of the motor to be tested to provide a load force. A rotating shaft is vertically arranged in the casing 1, and a transmission is connected to the shaft wall of the rotating shaft. Mechanism, the transmission mechanism is connected with the electromagnet 12, which is used to change the force of the electromagnet 12 on the load mechanism, so that the load mechanism can generate different vibration forces. The receiving end device is connected to the receiving end device, and the receiving end device displays an...

Embodiment 2

[0036] Embodiment 2: What is different based on Embodiment 1 is;

[0037] Refer to the attached Figure 4-5 , The load mechanism includes a main shaft 9, the upper end of the main shaft 9 is fixedly connected with a coupling 6, and the connecting shaft 6 adopts a retractable spline gauge and a spline shaft to connect the output shaft of the motor to be tested and the main shaft 9, and the spline shaft and the spline shaft are connected. The fitting clearance of the gauge is 0.01-0.03 mm, and it is fixed with symmetrically arranged screws to ensure the connection rigidity of the main shaft 9 and the shaft of the motor to be tested. When performing the locked-rotor torque test, it is only necessary to turn off the power of the motor to be tested and loosen the screws. After that, the power supply can be turned on again, the lower end of the main shaft 9 is fixedly connected with a rotor 24, a plurality of uniformly distributed permanent magnets 20 are fixedly connected to the ro...

Embodiment 3

[0041] Embodiment 3: The difference based on Embodiment 1 is;

[0042] Refer to the attached figure 2 and Image 6 , the transmission mechanism includes a curved rod 14, one end of the curved rod 14 is fixed on the upper end of the rotating shaft, the lower end of the rotating shaft is rotatably connected to the inner wall of the casing 1 through a rolling bearing, and the casing 1 is fixedly connected with a crossbar 16, the rod wall of the crossbar 16 A worm wheel 17 is fixedly connected to the shaft wall of the rotating shaft through a ball bearing. A worm 18 is engaged with one side of the worm wheel 17, and a first motor 15 is fixedly connected to one side of the housing 1. The first motor The output end of 15 penetrates the side wall of the housing 1 and is fixedly connected with one end of the worm 18. The rod wall of the bending rod 14 is fixedly connected with a fixing frame 30, and the fixing frame 30 is connected with an adjusting unit, and the adjusting unit is c...

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Abstract

The invention relates to the technical field of motor testing, and discloses a motor equipment performance testing device which comprises a base, a speed sensor, a vibration sensor, a pressure sensor, an electromagnet, a shell, an outer shell and a cover plate, a sleeve is fixedly connected to the center of the upper end of the cover plate through a round opening, and a load mechanism is connected into the sleeve. The load mechanism is used for being connected to an output shaft of a to-be-tested motor to provide load force, a rotating shaft is vertically arranged in the shell, a transmission mechanism is connected to the shaft wall of the rotating shaft, and the transmission mechanism is connected with the electromagnet and used for changing the acting force of the electromagnet on the load mechanism so that the load mechanism can generate vibration force of different magnitudes. According to the motor equipment performance testing device, the operation steps during motor performance testing can be simplified, the speed of motor performance testing can be improved, load forces of different magnitudes and different directions can be applied to the motor, and then the mechanical performance of the motor can be tested at multiple angles.

Description

technical field [0001] The invention relates to the technical field of motor testing, in particular to a performance testing device for motor equipment. Background technique [0002] At present, the performance of the motor needs to be tested before it leaves the factory. Generally, the parameters that need to be tested include starting current, no-load current, load current, stall current, no-load speed, load speed and stall torque, etc. Among them, the starting current, Test items such as no-load current, load current, and stalled-rotor current can be detected by multimeter testing equipment, and directly observe whether the current and voltage data meet the factory standards. The performance test process is more complicated, not only need to connect different load loading equipment, but also need to install corresponding speed sensors, pressure sensors and vibration sensors to collect dynamic signals when the motor is running, and the collected electrical signals are tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R1/02G01R1/04G01D21/02
CPCG01R31/34G01R1/02G01R1/0408G01D21/02
Inventor 付朝阳牛小童平双瑞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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