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Rotary type piezoelectric micro-angle driving apparatus

A driving device, micro-angle technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve problems such as expensive applications

Inactive Publication Date: 2010-07-07
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the piezoelectric motor has reached the application level, it is difficult to apply in a wider range due to its high price. Changing the structure of the motor and selecting appropriate materials can further reduce the cost of the motor

Method used

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  • Rotary type piezoelectric micro-angle driving apparatus
  • Rotary type piezoelectric micro-angle driving apparatus
  • Rotary type piezoelectric micro-angle driving apparatus

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Experimental program
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0014] The rotary piezoelectric micro-angle drive device uses the same alternating "push-pull" principle, also known as the "inchworm" principle, to realize the uniform speed and continuous rotary motion of the shaft. figure 1 Shown is a schematic diagram of the motion principle of the rotary micro-angle drive device. Consists of two clamps C1, C2 and two actuators A1, A2. figure 1 (1) It is OFF and relaxed state; figure 1 (2), C2 clamps and C1 relaxes; figure 1 (3), A1 and A2 stretch together, and C2 drives the linkage disc to rotate; figure 1 (4), C1 clamps, C2 relaxes; figure 1 (5) A1 and A2 contract together, and C1 and A1 drive the linkage disc to continue to rotate clockwise. Such states (2), (3), (4), and (5) alternate repeatedly, so that the shaft fixed on the linkage plate can move clockwise, reverse the order of C1 and C2, and the shaft will...

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Abstract

The invention relates to the micro actuation, localization technology. Specifically says relates to the rotation type piezoelectricity micro angle drive. In order to provide a rotation type piezoelectricity micro angle drive with simple structure, the low construction cost, easy to alignment, high precision of movement, the invention used the technical program is: the rotation type piezoelectricity micro angle drive, including the canopy, the seat, the bearing end cover, the bearing and the gyro-axle, in addition also includes, the driver, the piezoelectric ceramics, the shifting plate which connects with the gyro-axle fixedly, dolly bar which is used in clamping and relaxing the shifting plate, the driver is composed of moving body and the fix body which fixes on the seat, the dolly bar fixes on the moving body, the piezoelectric ceramics has distributed on the driver. The invention is mainly used in making realize the principle of alternate 'pushes - pulls', also calls the drive of 'the canker-worm' principle.

Description

technical field [0001] The invention relates to micro-drive and positioning technology. Specifically, it relates to a rotary piezoelectric micro-angle driving device. Background technique [0002] Micro-drive and positioning technology is a hot topic in the research of various countries in the world today, and it is one of the key technologies in nanometer measurement and processing technology. No matter it is nanometer measurement or nanometer positioning, a microdrive system is required. The performance of the micro-drive directly affects the accuracy of measurement or positioning. The so-called micro-driver refers to devices and devices that can produce micro-drive. Micro drive is an important part of micro drive and positioning system. Famous universities and laboratories at home and abroad regard the research on the design, processing, manufacturing and testing of micro-actuators as a key direction and breakthrough in micro-mechanical research. Piezoelectric motor i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/00
Inventor 赵美蓉林玉池陆伯印胡长德
Owner TIANJIN UNIV