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Rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor and its compound excitation method

A linear motor and drive type technology, applied in piezoelectric/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc. It can improve the mechanical output characteristics, reduce the displacement return rate, and improve the output efficiency.

Active Publication Date: 2017-08-29
CHANGCHUN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems of the existing piezoelectric stick-slip linear motors, such as the difficulty in comprehensive regulation of the friction between the stator and the mover, the mechanical output characteristics are limited, the serrated-like uneven motion output is generated, and the output performance is deteriorated, etc., the present invention discloses A rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor and its compound excitation method

Method used

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  • Rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor and its compound excitation method
  • Rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor and its compound excitation method
  • Rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor and its compound excitation method

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specific Embodiment approach 1

[0022] Specific implementation mode one: combine Figure 1~Figure 9 This embodiment will be described. This embodiment provides a specific implementation of a rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor. The rhombus hinge paddle type orthogonal drive piezoelectric stick-slip linear motor comprises a preload adjustment mechanism 1 , a paddle type stator 2 and a mover 3 .

[0023] The preload adjustment mechanism 1 is composed of a lower support table 1-1, a preload slide table 1-2 and a preload bolt 1-3, wherein the lower support table 1-1 and the preload slide table of the preload adjustment mechanism 1 Tables 1-2 are made of stainless steel. The lower support platform 1-1 is provided with a mover installation hole 1-1-1 and a mover installation reference surface 1-1-8, and the mover 2 is fixed on the mover installation hole 1-1-1. On the reference plane 1-1-8; the lower support platform 1-1 is provided with a tapered hole 1-1-2, and the...

specific Embodiment approach 2

[0026] Specific implementation mode two: combination Figure 10 This embodiment will be described. This implementation mode provides a specific implementation scheme of a compound excitation method for a rhombus hinge paddle type orthogonal drive type piezoelectric stick-slip linear motor. The composite excitation method of the diamond-shaped hinge paddle type orthogonal drive piezoelectric stick-slip linear motor is as follows.

[0027] The composite excitation electric signal used in the driving method is compositely superimposed on the sawtooth driving wave in the rapid deformation stage of the paddle-type stator by the friction regulation wave, the driving wave is a sawtooth wave, and the friction regulation wave is a sine wave. The period of sawtooth driving wave is T 1 , the excitation voltage amplitude is V 1 , the symmetry is D, and the period of the slight friction sinusoidal control wave is T 2 , the excitation voltage amplitude is V 2 , the period ratio of the ...

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Abstract

The invention discloses a rhombic hinge shifting piece type orthogonal driving type piezoelectric stick-slip linear motor and a composite excitation method therefor, and solves the problem that the output mechanical performance of the current piezoelectric stick-slip linear motor is limited caused by difficulty in comprehensive regulation and control on the friction force. The piezoelectric stick-slip linear motor comprises three parts: a pre-tightening force regulating apparatus, a shifting piece type stator and a mover, wherein the shifting piece type stator generates side displacement by a shifting piece type rhombic movement converter to increase the friction driving force and decrease the friction resistance; meanwhile, the friction regulation and control wave is coupled and overlapped to the sawtooth driving wave in the rapid deformation stage of the shifting piece type stator so as to reduce the friction resistance between the stator and the mover in the rapid deformation stage; and therefore, the comprehensive regulation and control on the friction force is realized, and the mechanical output characteristic of the piezoelectric stick-slip linear motor is remarkably improved. The piezoelectric stick-slip linear motor has the characteristics of simple structure, high precision, long journey and the like, and can be widely applied to the advanced technical fields of semiconductor processing, optical precision optical instrument, and the like.

Description

technical field [0001] The invention relates to a diamond-shaped hinge paddle type orthogonal drive piezoelectric stick-slip linear motor, which belongs to the advanced technical fields of semiconductor processing and optical precision instruments. Background technique [0002] Piezoelectric stick-slip linear motor is a kind of piezoelectric stick-slip linear motor that uses the inverse piezoelectric effect of piezoelectric elements to excite the stator (or vibrator) to generate micro-vibration under the excitation of asymmetric electrical signals, and realizes mechanical energy output through the friction coupling between the stator and the mover. precision micro-nano motors. According to different driving working principles, piezoelectric stick-slip linear motors are mainly divided into two categories: resonant piezoelectric motors (also called ultrasonic motors) and non-resonant piezoelectric motors (also called piezoelectric stick-slip motors). Compared with resonant pi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/04H02N2/06
CPCH02N2/04H02N2/06
Inventor 卢晓晖程廷海陈栋李哲安冬李博文
Owner CHANGCHUN UNIV OF TECH
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