Lever amplification-based double-foot driven non-resonant piezoelectric linear motor

A technology of lever amplification and linear motor, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of small output displacement, low motor output stability, and processing errors and other problems, to achieve the effect of small processing difficulty, convenient connection, and simple component structure

Active Publication Date: 2016-09-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problems of low output stability of the motor caused by the small output displacement of the laminated piezoelectric ceramics and the processing error in the prior art

Method used

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  • Lever amplification-based double-foot driven non-resonant piezoelectric linear motor
  • Lever amplification-based double-foot driven non-resonant piezoelectric linear motor
  • Lever amplification-based double-foot driven non-resonant piezoelectric linear motor

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Embodiment Construction

[0026] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0027] Such as figure 1 As shown, the piezoelectric linear motor according to the present invention is composed of a stator assembly 1 , a slide rail 2 , a bottom plate 3 , a stator fixing plate 4 , and a pretensioning device 5 . The front end of the stator assembly 1 is in close contact with the wear-resistant ceramic strip on the slide rail 2 under the action of the pre-tensioning device 5, so that the motor has the function of self-locking when power is off; the stator assembly 1 is fixed on the stator fixing plate 4; Both the stator fixing plate 4 and the pretensioning device 5 are fixed on the bottom plate 3 .

[0028] Such as figure 2 As shown in the stator structure diagram, the stator assembly 1 includes a laminated piezoelectric ceramic group 11 , a stator mounting plate 12 , screws 13 , and a stator body 14 . There are two sets of parallel...

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Abstract

The invention discloses a lever amplification-based double-foot driven non-resonant piezoelectric linear motor, which comprises a stator assembly, a linear guide rail, a pre-loading device, a stator fixing plate and a bottom plate, wherein the stator assembly is fixedly connected to the stator fixing plate; a rotor guide rail is arranged at the front end of the stator assembly and the rear end of the stator assembly is connected with the pre-loading device; a pre-loaded spring is arranged in the pre-loading device; the front end of the stator assembly and the rotor guide rail are kept in contact under the action of the pressure generated by deformation of the pre-loaded spring; the rotor guide rail, the pre-loading device and the pre-loaded spring all are arranged on a base; and the stator assembly comprises stator structure bodies, laminated piezoelectric ceramic, a cushion block and pre-loaded bolts. The motor disclosed by the invention is simple in structure, small in size and convenient to install. Certain electric signals are applied to four groups of laminated piezoelectric ceramic respectively, so that linear motion of the piezoelectric motor can be achieved.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric precision braking applications, in particular to a biped-driven non-resonant piezoelectric linear motor based on lever amplification. Background technique [0002] Piezoelectric linear motor is a new type of linear actuator. It has developed rapidly in recent years and has attracted extensive attention from researchers at home and abroad. It uses the inverse piezoelectric effect of piezoelectric materials and generally has a specific structural form. Piezoelectric linear motors have a high thrust-to-weight ratio, are easy to miniaturize, can directly generate linear output, have simple structure, fast response, high position and speed control accuracy, and no electromagnetic interference, etc., which can meet the high-tech requirements for precision positioning technology . Currently, researchers have developed a wide variety of piezoelectric linear motors, some of which have been commercia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/02H02N2/04
CPCH02N2/02H02N2/043
Inventor 孙梦馨黄卫清王道智卢倩王寅
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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