A Harmonic Deceleration Driving Mechanism with Self-locking

Abstract

The present invention is a self-locking harmonic deceleration drive mechanism, including a harmonic reducer, the output shaft end of the harmonic reducer is connected to and drives a corresponding load, and the input shaft end of the harmonic reducer is connected to a motor. The rotating shaft is connected to the rotating shaft of the motor, and a positioning disc is connected and driven on the rotating shaft of the motor. A number of positioning holes are evenly distributed on the disc surface of the positioning disc. An electromagnet is arranged on one side of the positioning disc. There is a locking pin on the magnetic end of the motor. When the electromagnet is turned off, a spring is used to push the locking pin to form a lateral pre-thrust force on the positioning plate. If the small movement of the load causes the positioning plate to rotate, the locking pin will automatically push in The positioning hole nearby realizes self-locking; when the electromagnet is turned on, the locking pin is driven to pop out of the positioning plate to realize unlocking. The invention solves the self-locking problem of the harmonic reducer, and has the advantages of compact structure, low cost, light weight, high reliability and good portability.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a harmonic deceleration drive mechanism with self-locking. Background technique [0002] In the application of automatic tracking antenna and satellite portable communication equipment, in order to realize the characteristics of thinness and smallness of equipment, most of them are driven by harmonic reducer. However, the transmission mechanism of the traditional harmonic reducer does not have the characteristic of self-locking. Generally, after the equipment automatically tracks the satellite, it is locked by manual locking. This method increases the complexity of human operation, and more structural parts also increase the complexity of the equipment. If no locking measures are taken, it will increase the instability of the equipment and affect the final pointing accuracy. Other solutions, such as worm gear reduction equipment, can realize self-locking, but the...

AI Technical Summary

Problems solved by technology

However, the transmission mechanism of the traditional harmonic reducer does not have the characteristic of self-locking. Generally, after the equipment automatically tracks the satellite, it is locked by manual locking.

This method increases the complexity of human operation, and more structural parts also increase the complexity of the equipment. If no locking measures are taken, it will increase the instability of the equipment and affect the final pointing accuracy.

Other solutions, such as worm gear reduction equipment, although they can achieve self-locking, have gap problems, and the volume and weight are not dominant

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