Piezoelectric driving-based crawling actuator and working method thereof

A technology of piezoelectric drive and working method, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. Fast speed and other issues, to achieve the effect of small size, large load and fast response

Pending Publication Date: 2018-03-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing actuators, the small size is difficult to meet the demand for large loads; the fast response speed is difficult to integrate into a smaller size
Therefore, it is difficult to balance the performa

Method used

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  • Piezoelectric driving-based crawling actuator and working method thereof
  • Piezoelectric driving-based crawling actuator and working method thereof
  • Piezoelectric driving-based crawling actuator and working method thereof

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0031] The creeping actuator based on piezoelectric drive includes: a first phosphor bronze substrate 1 , a first piezoelectric ceramic sheet 2 , a second phosphor bronze substrate 3 , a second piezoelectric ceramic sheet 4 , and a connecting rod 5 .

[0032] The first phosphor bronze substrate 1 and the second phosphor bronze substrate 3, the shape and size of the first piezoelectric ceramic sheet 2 and the second piezoelectric ceramic sheet 4 are all the same, the first piezoelectric ceramic sheet 2 and the second piezoelectric ceramic sheet 4 is a rectangle. Both ends of the first phosphor bronze base body 1 and the second phosphor bronze base body 3 are provided with legs, and the shape of the legs is an equilateral triangle.

[0033] A first pie...

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PUM

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Abstract

The invention discloses a crawling actuator based on piezoelectric drive and a working method thereof, and relates to the fields of ultrasound, MEMS and piezoelectric technology, and enables the actuator to meet the requirements of small size, fast response speed, turning motion, and load great features. The present invention comprises: a first phosphor bronze substrate, a first piezoelectric ceramic sheet, a second phosphor bronze substrate, a second piezoelectric ceramic sheet, and a connecting rod. The effect and the 60-degree angle between the two sides of the two feet of the substrate and the ground contact cause the two sides of the two feet to produce different vibration displacements under the drive of the piezoelectric ceramics, so that the two feet of the substrate produce a motion pattern in the same direction. By controlling and adjusting the input sinusoidal voltage value of the two feet, different turning radii of the actuator can be realized, and the preset travel path can be completed.

Description

technical field [0001] The invention relates to the technical fields of ultrasound, MEMS and piezoelectricity, in particular to a creeping actuator driven by piezoelectricity and a working method thereof. Background technique [0002] Actuator is a key component to implement active vibration control and an important part of active control system. The role of the actuator is to exert control force on the control object according to the determined control law. In recent years, on the basis of traditional fluid actuators, gas actuators and electrical actuators, many intelligent actuators have been researched and developed, such as piezoelectric ceramic actuators, piezoelectric film actuators, Electrostrictive actuators, magnetostrictive actuators, shape memory alloy actuators, servo actuators and electrorheological fluid actuators, etc. The emergence of these actuators provides the necessary conditions for the realization of high-precision active vibration control. [0003] ...

Claims

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Application Information

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IPC IPC(8): H02N2/06H02N2/04H02N2/14H02N2/12
CPCH02N2/04H02N2/062H02N2/12H02N2/142
Inventor 彭瀚旻朱攀丞杨剑之
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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