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Stepped piezoelectric ceramic rotation driver and drive method

A technology of rotary drive and piezoelectric ceramics, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of small displacement output stroke and narrow application range, etc. Achieve the effect of reducing complexity and size, simple structure, stable and reliable work

Inactive Publication Date: 2015-06-24
XI AN JIAOTONG UNIV
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Problems solved by technology

Although the piezoelectric ceramic driver has the characteristics of small size, high displacement output resolution, easy control, and no stray magnetic field, its application range is greatly reduced due to its small displacement output stroke and only linear displacement output.

Method used

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  • Stepped piezoelectric ceramic rotation driver and drive method
  • Stepped piezoelectric ceramic rotation driver and drive method
  • Stepped piezoelectric ceramic rotation driver and drive method

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 and figure 2 As shown, a stepping piezoelectric ceramic rotary driver of the present invention includes a precision bearing 8 fixed on a fixed base plate 9, an output shaft 7 installed on the inner ring of the precision bearing 8, and the inner end is arranged on the circumference of the output shaft 7. The clamping mechanism 1, the first driving mechanism 3 and the second driving mechanism 5 are respectively installed in the clamping mechanism 1, the first driving mechanism 3 and the clamping piezoelectric ceramic driver 2 on the long axis of the second driving mechanism 5, The first piezoelectric ceramic driver 4 and the second piezoelectric ceramic driver 6, the outer ends of the clamping mechanism 1, the first driving mechanism 3 and the second driving mechanism 5 are fixed on the driving housing 10, and ...

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Abstract

A stepped piezoelectric ceramic rotation driver comprises a precise bearing fixed to a base plate, an output shaft installed on an inner ring of the precise bearing, a clamping mechanism with the inner end arranged on the periphery of the output shaft, a first driving mechanism and a second driving mechanism, piezoelectric ceramic drivers, a first piezoelectric ceramic driver and a second piezoelectric ceramic driver, wherein the piezoelectric ceramic drivers are respectively installed on the long shafts of the clamping mechanism, the first driving mechanism and the second driving mechanism and used for clamping, and the circle center of the output shaft is located on the short axis of the clamping mechanism and is not located on the short axis of the first driving mechanism and the short axis of the second driving mechanism. The invention further discloses a drive method of the driver. Linear displacements output by the piezoelectric ceramic drivers are converted into angular displacements, rotation of the driver is achieved through coordinative stepping of the multiple piezoelectric ceramic drivers, and the stepped piezoelectric ceramic rotation driver has the advantages of being compact in structure, small in size and light weight.

Description

technical field [0001] The invention belongs to a piezoelectric ceramic driving device, in particular to a stepping piezoelectric ceramic rotary driver and a driving method. Background technique [0002] In recent years, with the rapid development of micro-nano technology, piezoelectric actuators have increasingly extensive applications in the fields of ultra-precision micro-machining and measurement technology, micro-electro-mechanical systems, nanotechnology, semiconductor manufacturing, modern medicine and biological heritage engineering, and aerospace technology. application. Although the piezoelectric ceramic driver has the characteristics of small size, high displacement output resolution, easy control, and no stray magnetic field, its application range is greatly reduced due to its small displacement output stroke and only linear displacement. Contents of the invention [0003] In order to overcome the above-mentioned problems in the prior art, the object of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/14
Inventor 敬子建徐明龙宋思扬陈楠
Owner XI AN JIAOTONG UNIV
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