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Planar ultrasonic motor driven based on H-shaped piezoelectric transducer structure and working mode thereof

A piezoelectric transduction and planar technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of slow motor speed, achieve stable operation, avoid The effect of plane motion error and increasing output power

Inactive Publication Date: 2015-10-28
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2007, Aoyama, Japan developed a planar motor with nanometer-level positioning accuracy based on the piezoelectric electrostrictive effect, but the speed of the motor was extremely slow, and it was only suitable for driving a micro-manipulation platform; in 2012, Scuor designed a five-freedom motor based on an ultrasonic motor. degree positioning platform
So far, there are no other ultrasonic motors with similar principles and structures to the present invention at home and abroad

Method used

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  • Planar ultrasonic motor driven based on H-shaped piezoelectric transducer structure and working mode thereof
  • Planar ultrasonic motor driven based on H-shaped piezoelectric transducer structure and working mode thereof
  • Planar ultrasonic motor driven based on H-shaped piezoelectric transducer structure and working mode thereof

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Embodiment

[0037] Embodiment: The present invention is based on a planar ultrasonic motor driven by an H-shaped piezoelectric transducer structure, including a stator assembly 1, a mover assembly 2 and a support assembly 3, see Figure 1 to Figure 4 . The support assembly 3 is connected to the mover assembly 2 through the fixed vertical plate 31 on one side of the bottom plate 32, the stator assembly 1 is located between the support assembly 3 and the mover assembly 2, and is connected to the mover assembly 2 through the driving foot 111, and The stator fixing screw 37 of the support assembly 3 is connected to the bottom plate 32; the stator assembly 1 includes an H-shaped structural plate 11 and a piezoelectric ceramic excitation assembly 12, and the H-shaped structural plate 11 is connected by two longitudinal rods 114 and the middle section of the longitudinal rod 114. The horizontal bar 115 is formed, the vertical bar 114 is provided with an adjustment hole 112, and the middle of the...

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Abstract

The invention discloses a planar ultrasonic motor driven based on an H-shaped piezoelectric transducer structure driven based on an H-shaped piezoelectric transducer structure and a working mode thereof. A supporting base assembly is connected with a mover assembly through a vertical plate which is fixed at one side of a base plate. A stator assembly is arranged between the supporting base assembly and the mover assembly. The stator assembly is connected with the mover assembly through driving legs. Furthermore the stator assembly is connected with the base plate through a stator fixing screw of the supporting base assembly. According to the planar ultrasonic motor, a simple H-shaped-structure stator is used, and direct driving for the mover in two linear freedom directions is realized simultaneously, thereby making the motor generate a micrometer-grade or higher-precision-grade precise movement, and furthermore a quick response characteristic of the motor is realized. Two pairs of driving legs of the stator assembly alternately push the mover assembly to perform planar movement, thereby enlarging a motor output power by times, and realizing higher stability in operation of the motor. The driving legs which are arranged in the plane of an H-shaped structure board are used for driving the mover, thereby facilitating realization of miniature and planar design of the motor.

Description

technical field [0001] The invention relates to a two-degree-of-freedom planar ultrasonic motor compound-driven by two-phase in-plane vibration working modes and one-phase out-of-plane vibration working mode of an H-shaped structural plate, belonging to the field of multi-freedom ultrasonic motors. Background technique [0002] Ultrasonic motors are indispensable and important executive components of modern manufacturing equipment, aerospace devices, new weapons, household and office automation equipment, and can be divided into rotary type, linear type, single degree of freedom, multi-degree of freedom and other forms. At present, the technology of rotary and linear ultrasonic motors is becoming more and more mature, and the industrialization of ultrasonic motors is mainly concentrated on these two types of motors. As a specific type of multi-degree-of-freedom motors, planar ultrasonic motors (PUSM) Linked features lead to a sharp increase in technical conflicts, complex de...

Claims

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Application Information

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IPC IPC(8): H02N2/00
Inventor 贺红林肖智勇刘文光廖永林
Owner NANCHANG HANGKONG UNIVERSITY
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