Rotary table structure for automatic test of motor

Abstract

The invention relates to a rotary table structure for automatic testing of a motor, and the structure comprises a mounting frame which is internally provided with a central shaft; the torque sensor is arranged on the central shaft in a penetrating manner, and the right end of the torque sensor is fixed on the mounting frame; the rotary transformer also penetrates through the central shaft and is fixed on the left end surface of the torque sensor; the left end of the spring pressurizing brake is arranged on the mounting frame; a motor is installed on the right end face of the installation frame, and the center shaft is installed in a mounting hole of the motor in a matched mode. The center shaft is provided with a stress disc; the spring pressurization brake generates axial pressure on the stress disc, so that the stress disc is subjected to friction force, and finally the center shaft generates load. An axial position adjusting unit is further arranged on the right side face of the mounting frame. The device has the beneficial effects that the measurement precision is high, the coaxiality can be automatically adjusted, and rigid support can be realized after flexible adjustment.

Description

technical field [0001] The invention relates to the technical field of motor performance measurement, in particular to a turntable structure for automatic testing of motors. Background technique [0002] In the process of measuring torque and other performances of the motor, the shaft of the motor is usually connected to the shaft of the torque sensor by using a coupling, and the shaft of the torque sensor is also connected to the load. [0003] However, this way of setting multiple couplings makes the axial length of the entire measurement installation structure very long, and the coaxiality of the shafts is slightly inaccurate, which will affect the measurement results. In addition, the way of connecting with the coupling itself cannot guarantee the coaxiality. [0004] The principle of the influence of coaxiality is: when the coaxiality is not good, the force exerted by the number of pole pairs of the motor on the motor shaft will change, the motor is not in a good runni...

AI Technical Summary

Problems solved by technology

[0003] However, this way of setting multiple couplings makes the axial length of the entire measurement installation structure very long, and the coaxiality of the shafts is slightly inaccurate, which will affect the measurement results

In addition, the way of connecting with the coupling itself cannot guarantee the coaxiality

[0004] The principle of the influence of coaxiality is: when the coaxiality is not good, the force exerted by the number of pole pairs of the motor on the motor shaft will change, the motor is not in a good running state, and the measured performance of the motor is also in a bad state. make measurements inaccurate

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