Device for detecting back clearance of planetary gear reducer

Abstract

The invention discloses a device for detecting back clearance of a planetary gear reducer. The device comprises a detection platform, the detection platform is connected with a high-precision servo motor in a lifting mode, the output end of the servo motor faces downwards and is sequentially connected with a torque sensor and an input shaft from top to bottom, a detected speed reducer which is located below the input shaft and has an output end facing downwards is fixed to the detection platform, a clamping block for clamping and fixing the output shaft of the detected speed reducer is arranged below the detection platform, the input shaft is connected with the input end of the detected speed reducer, a high-precision encoder is fixed on the detection platform, and the encoder surrounds the outer ring of the input shaft. The device is reasonable and compact in structure, the servo motor is controlled to ascend and descend to enable the input shaft to be connected with the speed reducer, a required torque value is accurately obtained under the combined action of the servo motor and the torque sensor in a torque control mode and is used for controlling forward torsion and reverse torsion of the input shaft, and the high-precision encoder is used for detecting a micro-angle rotation value of the input shaft and used for measuring the tiny back clearance value of the speed reducerand accurately detecting the back clearance value. The detection is accurate.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a reducer, in particular to a backlash detection device for a planetary gear reducer. Background technique [0002] At present, the reducer is a mechanical transmission device widely used in the industrial field. It plays the role of matching speed and transmitting torque between the prime mover, working machine or actuator. Its categories include various gear reducers, planetary gear reducers, turbines Worm reducer, etc. The planetary gear reducer is mainly composed of planetary gear, sun gear, outer ring gear, etc. It is small in size, high in transmission efficiency, wide in deceleration range, and high in transmission accuracy. It is widely used in transmission systems such as servo motors, stepping motors, and DC motors. middle. [0003] The parameters of the planetary gear reducer mainly include backlash, efficiency, temperature rise, starting torque, etc. The backlash...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the above-mentioned problems in the prior art, and provides a planetary gear reducer backlash detection device, which solves the problems of inaccurate detection of the current planetary gear reducer backlash and small application range, and satisfies the requirement of accurately detecting the backlash of the reducer. need

Images