Rotary type traveling-wave spherical ultrasonic motor synchronous self-aligning stator support device

Abstract

Disclosed is a rotary type traveling-wave spherical ultrasonic motor synchronous self-aligning stator support device, comprising a stator, a stator support rod, a strain gauge, a rotor, a cylindricalroller, a spherical roller , a rotating wheel, a fixed cylinder, a hinged support, a soft metal ring, a hard metal ring and a pedestal; the hinged support is arranged in the pedestal, wherein the hinged support winds the central line of the pedestal for one circle at equal angles; the hinged support is connected with the stator through the stator support rod, and a strain gauge is arranged on thestator support rod; the stator clamps the rotor, and the fixed cylinder is on the pedestal; the fixed cylinder is sleeved with the rotating wheel; the hard metal ring is arranged in the annular groovein the upper part the rotating wheel; the soft metal ring is in the hard metal ring; a spherical roller is arranged between the bottom of the hard metal ring and the bottom of the circular groove onthe upper part of the rotating wheel, and a cylindrical roller is arranged between the outer wall of the hard metal ring and the inner wall of the circular groove on the upper part of the rotating wheel. The support device achieved by the invention can realize synchronous control of all stator support rods, and can adjust the stator pre-loaded pressure quickly and conveniently, so that it has equivalent and appropriate pre-loaded pressure.

Description

technical field [0001] The invention relates to the field of supporting equipment for ultrasonic motors, in particular to a synchronous self-aligning stator support device for a rotary traveling wave spherical ultrasonic motor. Background technique [0002] As a new type of motor, the rotating traveling wave ultrasonic motor has broad application prospects in the fields of car electrical appliances, office automation equipment, precision instruments, computers, industrial control systems, aerospace, and intelligent robots. At present, it has been successfully applied in the fields of automatic focus device, transmission device, automatic lifting device, precision plotter, micro-mechanical drive and other fields of cameras in foreign countries. Ultrasonic motors are generally composed of a vibrating body and a moving body. When a high-frequency AC voltage is applied to the piezoelectric ceramic vibrator of the vibrating body, the inverse piezoelectric effect or electrostricti...

AI Technical Summary

Problems solved by technology

However, the stator pre-pressure control of the ultrasonic motor is very strict. In the existing ultrasonic motor, the stator rods need to be adjusted separately to adjust the pre-pressure to a suitable size. stress becomes troublesome

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