A motor torque measuring device

Abstract

The application discloses a motor torque measuring device, comprising: a motor positioning mechanism under test, a main shaft cooling assembly, a speed reducer and a fixing ring, a rotational speed torque sensor, a servo motor assembly, a base, and a slide rail. The invention adopts the spindle connection method to realize the rapid switching of the environmental test. At the same time, the cooling unit included in the spindle cooling assembly is used to reduce the temperature rise caused by the high-speed rotation of the spindle or the output torque caused by the excessively high and low temperature caused by the environmental test. The deviation of the measurement accuracy is improved; the positioning device of the motor under test connected to one end of the spindle cooling assembly is used to clamp the motor under test, and the axis of the motor under test can be quickly and automatically adjusted by using the control mode of the X-direction sliding table and the Y-direction sliding table motor Being on the same straight line as the main shaft reduces the detection deviation; in addition, the connection mode of the servo motor in the motor torque measuring device of the present invention realizes the rapid switching of the measuring range.

Description

technical field [0001] The invention belongs to the field of mechanical measurement, and relates to a motor torque measuring device, which is suitable for torque performance measurement of small torque motors. Background technique [0002] The movement of the load driven by the motor depends on a certain torque provided by the working machine, and the speed and torque are important parameters to measure the performance of the motor. With the improvement of industrial automation level, the application of motors is more extensive, and the requirements for motors are different in different occasions. In particular, some motors used in special environments have higher requirements on parameters. Therefore, it is of great significance to ensure and improve the accuracy of measurement. [0003] The motor torque passive test is a process in which the motor or motor drives the motor under test to rotate, and the main shaft transmits the torque of the motor under test to the detect...

AI Technical Summary

Problems solved by technology

The traditional installation method is to find the best installation position of the motor under test based on experience and many times of manual debugging. The debugging process is cumbersome and it is difficult to ensure that the position is the best.

In addition, during the environmental test of the motor, the main shaft part that transmits torque is easily affected by the ambient temperature of the tested part. Too high or too low temperature makes the torque measurement accuracy and measurement accuracy cannot be guaranteed.

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