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Inverse piezoelectric effect-based actuator

An inverse piezoelectric effect and actuator technology, which is applied in the field of micro-displacement drive devices, can solve the problems of inability to meet requirements and the type of actuator controlled structure, and achieve stable motion trends, realize motion trends, and improve driving displacement. Effect

Pending Publication Date: 2018-04-17
SHAOXING KANGJIAN PRECISION STAINLESS STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because most of the traditional actuators use electrothermal, electromagnetic or mechanical driving methods, for the requirements of the current actuator design, the traditional actuators are limited by the working principle and structure and cannot meet the requirements.

Method used

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  • Inverse piezoelectric effect-based actuator
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  • Inverse piezoelectric effect-based actuator

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Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0027] Such as Figure 1-4 As shown, an actuator based on the inverse piezoelectric effect includes a stator 1, a stator bottom plate 101, a driving foot 102, a second lever 103, a second straight circular flexible hinge 104, a first lever 105, a first straight circular Type flexible hinge 106, horizontal power unit 107, third straight round flexible hinge 108, fourth straight round flexible hinge 109, waist round hole 110, fifth straight round flexible hinge 111, vertical power unit 112, cantilever beam 113. Internal electrode 114, insulator 115, external electrode 116, piezoelectric ceramic sheet 117, mover 2, mover body 201, mover base 202, wear-resistant ceramic strip 203, base 3, pre-press block 4, positioning device 5 , Micrometer head 6 and preloading screw 7. The stator 1 is set on the base 3, the mover 2 is set on the base 3 and is in cont...

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PUM

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Abstract

The invention discloses an inverse piezoelectric effect-based actuator, which comprises a base, a stator arranged on the base, and a rotor arranged on the base, wherein the rotor is in contact connection with the stator; a positioning device is arranged between the base and the stator; the stator is arranged on the base through the positioning device and comprises a stator bottom plate, an amplifier unit structure arranged on the stator bottom plate and a power device; the power device is in transmission connection with the amplifier unit structure; and the power device is capable of pushing the amplifier unit structure to move and driving the rotor to move through the amplifier unit structure. The inverse piezoelectric effect-based actuator has the beneficial effects that the stator adopts a piezoelectric stack as the power device, so that micro-displacement action can be achieved; drive displacement of piezoelectric ceramic can be improved by adopting the piezoelectric stack; and meanwhile, the inverse piezoelectric effect-based actuator has the advantages of low power consumption, a fast response and a small calorific value.

Description

technical field [0001] The invention relates to the technical field of micro-displacement driving devices, in particular to an actuator based on the inverse piezoelectric effect. Background technique [0002] In recent years, with the continuous development and progress of science and technology, various new technologies have emerged, especially in aerospace, bionic technology, precision machinery, medicine, artificial satellites and other fields, which require high positioning capabilities. Moreover, with the diversification of machine working environments and applications, not only the actuators are required to have micron to nanometer high precision and precise motion control requirements, but also the actuators are expected to be miniaturized, lightweight and modularized. And it can be used safely in special occasions, such as electromagnetic field environment. Since most traditional actuators use electrothermal, electromagnetic or mechanical driving methods, for the re...

Claims

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Application Information

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IPC IPC(8): H02N2/02H02N2/04
CPCH02N2/028H02N2/04
Inventor 石康
Owner SHAOXING KANGJIAN PRECISION STAINLESS STEEL
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