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A linear piezoelectric actuator with high thrust

A piezoelectric driver, large thrust technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of low precision of lead screw modules and achieve high precision high effect

Active Publication Date: 2020-12-04
CHANGCHUN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems by designing a linear piezoelectric driver with a large thrust, which solves the problem of low precision of the existing lead screw module

Method used

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  • A linear piezoelectric actuator with high thrust
  • A linear piezoelectric actuator with high thrust
  • A linear piezoelectric actuator with high thrust

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Experimental program
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Effect test

Embodiment

[0029]Embodiment: Power is supplied to a pair of movable ceramic piezoelectric elements 11 in a pair of U-shaped moving blocks 10, so that a pair of movable ceramic piezoelectric elements 11 are elongated, and piezoelectric ceramics are vector conversion materials that force is converted into electricity or electricity conversion For power, when the mobile ceramic piezoelectric element 11 is powered, because the ceramic piezoelectric element is extended by 10-100MM under the condition of power supply, the length can be adjusted according to the magnitude of the voltage, so that the precision of the mobile ceramic piezoelectric element 11 is higher. By supplying power to a pair of lifting ceramic piezoelectric elements 8 in a pair of U-shaped limit blocks 6, the lifting ceramic piezoelectric elements 8 are elongated, so that the lifting moving plate 7 on the pair of lifting ceramic piezoelectric elements 8 moves, so that The U-shaped moving block 10 on the lifting moving plate 7...

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Abstract

The invention discloses a linear piezoelectric driver with a large thrust, which includes a push table, and a moving stability structure, a horizontal power structure, a lifting power structure and a lifting locking structure are installed in the pushing table; the beneficial effect of the invention is that by Under the action of an external electric field, piezoelectric ceramics will shift the center of positive and negative charges inside, which will cause mechanical deformation of the material, forming a characteristic that the size is proportional to the intensity of electric energy, so as to achieve controllable precision adjustment, so that the movement on the push table The block can move slightly within the range of 10-100mm, which makes the movement of the moving block more accurate. At the same time, the piezoelectric ceramic can convert electrical energy into kinetic energy, and the conversion rate is about 95%, so that the piezoelectric ceramic can drive a certain weight of the object.

Description

technical field [0001] The invention relates to the technical field of high-precision lead screw modules, in particular to a linear piezoelectric driver with large thrust. Background technique [0002] With the rapid development of precision ultra-precision machining, precision optics, life science and technology, microelectronic devices, precision measurement, intelligent devices and other fields, the drive device that can achieve large-scale and nanometer-level positioning accuracy has become a constraint for the further development of the above technical fields. bottleneck, and has received extensive attention and research. Although the traditional electromagnetic drive technology is very mature, it has problems such as insufficient positioning accuracy, slow response speed and serious electromagnetic interference. Therefore, new drive principles, especially piezoelectric drive technology, have been developed rapidly. Piezoelectric drive technology mainly uses the invers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/02
CPCH02N2/02
Inventor 田晓超李庆华王海刚孙禹泽朱金志闻人锴琦徐安俊赵剑李志瑶张代治贺春山刘夏候跃谦杨凤双
Owner CHANGCHUN UNIV