Conoid stator longitudinal and bending combination ultrasonic linear motor

Abstract

The invention relates to one tamper stator longitude compound supersonic line motor, which adopts tamper stator and dial tooth adopt the middle structure with protruding benches for rotor fixing, sliding and guiding; the stator acts on dial tooth through symmetric distributed eight piezoelectricity pads through pressure axis cover to tighten the pads into spiral middle axis; the stator two ends adopt double screw loose to adjust stator pre-pressure and sets screw bolt through pressure board to press rotor for positive pressure.

Description

technical field [0001] The invention belongs to an ultrasonic motor in the field of micro-motors, in particular to an ultrasonic linear motor with a conical stator longitudinal bending composite type. Background technique [0002] Ultrasonic linear motor, as a new type of micro-actuator, breaks through the concept of traditional motors, and uses the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic vibration of elastic bodies to convert microscopic deformation into rotor or slide through resonance amplification and electromechanical coupling. Macroscopic movement of blocks. This micro-special motor with a new principle and a new structure involves many disciplines such as material science, mechanical vibration, wave theory, tribology, microelectronics and control theory. , France, Britain and other developed countries in the field of MEMS research hotspots. [0003] Ultrasonic linear motor is a new type of micro motor using the inverse piezoelectric eff...

AI Technical Summary

Problems solved by technology

The adjustment process is more complicated, and the longitudinal vibration frequency and bending vibration frequency of the stator are also difficult to achieve the same. The structure is not compact enough, and there will be hysteresis, creep, nonlinear and other undesirable characteristics, and the work efficiency is not high.

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