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Lever amplification based alternative stepping piezoelectric linear motor

A technology of lever amplification and linear motor, which is applied to piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. It can solve the problems of small output displacement and low motor output stability. To achieve the effect of ensuring consistency, not being easily disturbed by environmental factors, and having a simple structure

Inactive Publication Date: 2016-07-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an alternating stepping piezoelectric straight line based on lever amplification to solve the problem of low motor output stability due to the small output displacement and processing error of the laminated piezoelectric ceramics in the prior art. motor

Method used

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  • Lever amplification based alternative stepping piezoelectric linear motor
  • Lever amplification based alternative stepping piezoelectric linear motor
  • Lever amplification based alternative stepping piezoelectric linear motor

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0046] Such as figure 1 , figure 2 As shown, the present invention discloses an alternating step piezoelectric linear motor based on lever amplification, which includes a base plate, first to third slide rails, first to third sliders, stator, pre-compression fixing block and pre-compression screw ;

[0047] The first to third sliders respectively correspond to the first to third slide rails and can slide on them;

[0048] The first to third slide rails are all fixed on the base plate, wherein the second slide rail and the third slide rail are parallel to each other, on the same side of the first slide rail and are perpendicular to the first slide rail;

[0049] The stator includes a frame, and first to fourth piezoelectric units;

[0050] The first to fourth piezoelectric units all include a lever amplifying mechanism, a laminated piezoelectri...

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Abstract

The invention discloses a lever amplification based alternative stepping piezoelectric linear motor. Lamination piezoelectric ceramic is taken as a main driving component, the position of the lamination piezoelectric ceramic on a stator combination body is reasonably arranged, the displacement of the lamination piezoelectric ceramic is amplified and output by a lever mechanism and a hinge mechanism, so that the piezoelectric linear motor can output relatively high linear speed and a push force, theoretically has equal bidirectional output performance, can generate relatively large travel, and is high in accuracy and high in stability. By the lever amplification based alternative stepping piezoelectric linear motor, the problems of relatively low motor output stability caused by relatively small displacement of the lamination piezoelectric ceramic and a processing error in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric precision actuation applications, in particular to an alternating stepping piezoelectric linear motor based on lever amplification. Background technique [0002] Piezoelectric linear motor is a new type of linear actuator. It has developed rapidly in recent years and has attracted extensive attention from researchers at home and abroad. It uses the inverse piezoelectric effect of piezoelectric materials and generally has a specific structural form. Piezoelectric linear motors have a high thrust-to-weight ratio, are easy to miniaturize, can directly generate linear output, have simple structure, fast response, high position and speed control accuracy, and no electromagnetic interference, etc., which can meet the high-tech requirements for precision positioning technology . Currently, researchers have developed a wide variety of piezoelectric linear motors, some of which have been commerciali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/02H02N2/04H02K1/12
CPCH02K1/12H02N2/02H02N2/043
Inventor 王道智黄卫清孙梦馨苏钊卢倩
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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