Device for measuring load characteristic of motor under vacuum environment

Abstract

The invention discloses a device for measuring load characteristic of a motor under a vacuum environment. The device comprises a vacuum container, a vacuum pump and a measuring mechanism. The vacuum pump is arranged outside the vacuum container and used for evacuating the vacuum container. The measuring mechanism is arranged in the vacuum container and comprises a hysteresis dynamometer, a torque sensor, a motor, a surface-mount temperature sensor and a vacuum degree sensor. The motor is connected with the torque sensor through a coupler. The torque sensor is connected with the hysteresis dynamometer through the other coupler. The vacuum degree sensor is mounted on the inner wall of the vacuum container. The surface-mount temperature sensor is adhered to the motor. The torque sensor, the vacuum degree sensor, the surface-mount temperature sensor and the hysteresis dynamometer are all electrically connected with a PLC (programmable logic controller) in a control cabinet outside the vacuum container through an electric connector on the wall of the vacuum container. The motor is connected with a power supply in the control cabinet through the electric connector on the wall of the vacuum container. By the use of the device, changes in the load characteristic of the common motor are measured under the vacuum environment.

Description

technical field [0001] The invention relates to a test device, in particular to a device for testing the vacuum environment load characteristics of a motor, which belongs to the field of control. Background technique [0002] Vacuum motors are usually used to select motors in a vacuum environment, but due to the particularity of the use of vacuum motors, the cost of the motor is several times higher than that of ordinary motors. Ordinary motors are not suitable for running in a vacuum environment due to their own heat dissipation and other problems, and the motors are easy to burn out, but there are also some ordinary motors that will not be burned out in a vacuum environment and can run. At present, the explanations given by various motor manufacturers are not uniform as to whether ordinary motors can operate in a vacuum environment. To this end, it is necessary to test the operation of ordinary motors in a vacuum environment. In a normal environment, the load characteris...

AI Technical Summary

Problems solved by technology

In a normal environment, the load characteristics of an ordinary motor can be directly measured by a dynamometer, but limited by the environmental conditions in a vacuum environment, the traditional measurement method can no longer be realized, and there is no special method on the market to measure the operation of the motor under vacuum. For this purpose, this paper designs a set of devices suitable for testing the motor load characteristics in a vacuum environment

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