Piezoelectrically-driven precision rotation driving device using specially-shaped hinge transmission mechanism

A rotary drive device and piezoelectric drive technology, applied in the field of precision engineering, can solve problems such as large structural size, low positioning accuracy, and small stroke, and achieve the effects of high displacement resolution, low drive power, and large output force

Pending Publication Date: 2018-06-29
JILIN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a piezoelectric-driven precision rotary drive device using a special-shaped hinge transmissi

Method used

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  • Piezoelectrically-driven precision rotation driving device using specially-shaped hinge transmission mechanism
  • Piezoelectrically-driven precision rotation driving device using specially-shaped hinge transmission mechanism
  • Piezoelectrically-driven precision rotation driving device using specially-shaped hinge transmission mechanism

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Embodiment

[0050] see Figure 1 to Figure 15 As shown, the piezoelectric-driven precision rotary drive device using a special-shaped hinge transmission mechanism in the present invention includes a base 1 , a rotating table 2 , a stator assembly 3 and a bearing 4 . The base 1 and the rotating table 2 are connected by bearings, the base 1 and the stator assembly 3 are connected by bolts, the rotating table 2 and the stator assembly 3 are in contact with the front end of the driving foot, and the base 1, the rotating table 2 and the bearing 4 are interference fit. When the excitation electrical signal acts on the piezoelectric stack, the piezoelectric stack generates axial elongation based on the inverse piezoelectric effect, causing the driving foot to generate tangential displacement, and drives the rotating table 2 to generate precise rotational motion. By changing the direction of the driving voltage and timing, that is, to control the rotating table 2 to generate forward and reverse r...

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Abstract

The invention relates to a piezoelectrically-driven precision rotation driving device using a specially-shaped hinge transmission mechanism, and belongs to the technical field of precision engineering. The piezoelectrically-driven precision rotation driving device using the specially-shaped hinge transmission mechanism comprises a base, a rotating table surface, a stator assembly, a bearing and other units, wherein the base and the rotating table surface are connected through the bearing; the base and the stator assembly are connected through bolts; the rotating table surface and the stator assembly are in contact fit through front ends of driving feet; the base and the rotating table surface are in interference fit with the bearing. When an excitation electric signal acts on a piezoelectric stack, the piezoelectric stack generates axial elongation based on an inverse piezoelectric effect, the driving feet generate tangential displacement to drive the rotating table surface to generateprecise rotating motion, and by changing the direction and the time sequence of driving voltage, the rotating table surface can be controlled to generate positive and reverse rotating motions and positioning can be achieved. The piezoelectrically-driven precision rotation driving device using the specially-shaped hinge transmission mechanism has many technical advantages such as simple structure, high positioning precision and high response speed, and has a wide application prospect in the technical field of precision engineering.

Description

technical field [0001] The invention relates to the technical field of precision engineering, in particular to a piezoelectric-driven precision rotary drive device using a special-shaped hinge transmission mechanism. Background technique [0002] In recent years, with the development of science and technology, micro-nano technology has become more and more important in life sciences, microelectronics, optics, ultra-precision machinery and its manufacturing, precision measurement, medicine and health, semiconductors, biochemistry, data storage and other disciplines. more important position. Micro-mechanical technology, micro-nano measurement technology, and micro-nano-level positioning and driving technology have become hot spots in the high-tech field in the world today. Various new driving devices with functions of precise driving, precise measurement and precise positioning have been successively developed. Existing driving devices often have shortcomings such as large s...

Claims

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Application Information

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IPC IPC(8): H02N2/10H02N2/12
CPCH02N2/10H02N2/12H02N2/123
Inventor 赵宏伟秦峰程廷海白元元薛博然赵丹王云艺国磊
Owner JILIN UNIV
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