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A double-butterfly-shaped stator piezoelectric linear actuator

A linear drive, butterfly stator technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problems of complex device, small load, small stroke, etc. Achieve the effect of simple and compact structure, large load and overcoming back-off

Pending Publication Date: 2017-09-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the piezoelectric drive mechanisms on the market now have disadvantages such as complex devices, small strokes, low precision, and small loads.

Method used

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  • A double-butterfly-shaped stator piezoelectric linear actuator
  • A double-butterfly-shaped stator piezoelectric linear actuator
  • A double-butterfly-shaped stator piezoelectric linear actuator

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Embodiment Construction

[0016] The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the application. The schematic examples and descriptions of the present invention are used to explain the present invention, and do not constitute improper limitations to the present invention.

[0017] see Figure 1 to Figure 7 As shown, this embodiment provides a double butterfly stator piezoelectric linear actuator, which is characterized in that it includes a butterfly stator 1 (1), a butterfly stator 2 (2), a mover (3), a base (4 ), wherein the butterfly stator 1 (1) and the butterfly stator 2 (2) are mirror-symmetrically placed on both sides of the mover (3), are in elastic contact with the mover (3), and are fixedly installed on the base (4) at the same time; The butterfly stator 1 (1) includes a rigid mount (1-1), a butterfly vibrator (1-2), and the four ends of the butterfly wings of the butterfly vibrator (1-2) are fixedly mou...

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Abstract

The invention discloses a double-butterfly-shaped stator piezoelectric linear actuator belonging to the field of precision driving technology. The double-butterfly-shaped stator piezoelectric linear actuator comprises a butterfly-shaped stator 1 (1), a butterfly-shaped stator 2 (2), a mover (3) and a pedestal (4), wherein the butterfly-shaped stator 1 (1) and the butterfly-shaped stator 2 (2) are placed on both sides of the mover (3) in mirror symmetry and are in elastic contact with the mover (3) and fixedly mounted on the pedestal (4). The butterfly-shaped stator 1 (1) and the butterfly-shaped stator 2 (2) have the same structure. A sinusoidal drive electric signal for lagging behind the butterfly-shaped stator 1 (1) for half a cycle is applied to the butterfly-shaped stator 2 (2). The butterfly-shaped stator 1 (1) and the butterfly-shaped stator 2 (2) alternately step to drive the mover (3) to move to effectively overcome backing of the mover (3). The double-butterfly-shaped stator piezoelectric linear actuator of the invention has advantages of a simple and compact structure, a large stroke, high precision, a large load and being capable of effectively inhibiting backspacing and being applied to the fields such as micro-nano machining, space flight and aviation and precision optics.

Description

technical field [0001] The invention discloses a double-butterfly stator piezoelectric linear driver, which belongs to the technical field of precision driving. Background technique [0002] In recent years, with the development of machinery, the existing driving devices can no longer meet people's needs. All kinds of mechanical equipment tend to be miniaturized, and there is an urgent need for ultra-precision micro-drive mechanisms. Piezoelectric ceramics have the advantages of stable output displacement with micro-nanometer precision, good linearity of displacement, convenient control, and high resolution. Small drivers with piezoelectric ceramics as the core are gradually being applied. Most of the piezoelectric drive mechanisms currently on the market have disadvantages such as complex devices, small strokes, low precision, and small loads. Contents of the invention [0003] In order to realize the combination of large stroke, high precision, large load and restrain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/02H02N2/04
CPCH02N2/021H02N2/04
Inventor 董景石田大越徐智肖旭东吴越关志鹏陈全渠范尊强赵宏伟杨志刚
Owner JILIN UNIV
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