A walking piezoelectric rotary motor

A rotating motor and walking technology, which is applied to piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve the problems of low miniaturization, insufficient driving force, poor stability, etc. problems, to achieve the effect of low difficulty in miniaturization, compact structure, and large torsional displacement

Active Publication Date: 2018-05-04
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a walking piezoelectric rotary motor that uses a novel piezoelectric torsion driver and a piezoelectric clamp bearing drive module to realize a walking rotary stepping motion, so as to solve the problem of the miniature piezoelectric rotary motor with different driving methods in the prior art. Low level of automation, insufficient driving force, low precision, and poor stability

Method used

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  • A walking piezoelectric rotary motor
  • A walking piezoelectric rotary motor
  • A walking piezoelectric rotary motor

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specific Embodiment

[0034] In this embodiment, the piezoelectric stack 5 is stretched and deformed under voltage driving, and the bearing ring 4 is driven to realize small movements such as clamping and loosening. By controlling the clamping and loosening timing of the piezoelectric stack 5 and the piezoelectric torsion driver 13 The timing of the torsional movement realizes the stepping movement of the rotary axis. Such as figure 1 and figure 2 As shown, the sleeve 14 is bonded to the piezoelectric torsion driver 13 through epoxy glue or AB glue, and the piezoelectric clamp bearing drive module 11 and the piezoelectric clamp bearing drive module 12 are connected to the sleeve 14 through screws 15, Therefore, the piezoelectric torsion driver 13 , the piezoelectric clamp bearing drive module 11 and the piezoelectric clamp bearing drive module 12 are closely connected. If the middle part of the piezoelectric torsion driver 13 is fixed, the stepping of the rotating shaft 6 is realized by controll...

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Abstract

The invention discloses a walking piezoelectric rotary motor, which adopts a coaxial structure composed of a piezoelectric torsion driver, two piezoelectric clamp bearing drive modules, two sleeves and a rotating shaft; the two sleeves are respectively Adhesively fixed at both ends of the piezoelectric torsion driver, the two piezoelectric clamp bearing drive modules are fixedly connected to the two sleeves through screws; the piezoelectric clamp bearing drive module is composed of a bearing unit and a piezoelectric stack, and is connected through the bearing sleeve The set pre-clamping force is applied to the rotating shaft by the ring, and the clamping motion is realized by driving the bearing ring through the piezoelectric stack; by controlling the torsion motion of the piezoelectric torsion driver and the timing sequence of the clamping motion of the piezoelectric clamping bearing drive module at both ends Realize the stepping motion of the rotary axis. The invention adopts a symmetrical structure layout, is compact in structure, is suitable for miniaturization, and can effectively improve its operating efficiency and stability.

Description

technical field [0001] The invention relates to the field of drivers, in particular to a walking piezoelectric rotary motor using a novel piezoelectric torsion driver and a piezoelectric clamp bearing drive module. Background technique [0002] With the rapid development of micro-nano science and technology, in various fields such as physical chemistry, biomedicine, aerospace, and new energy, there is an urgent need for micro-nano-level precision positioning and micro-nano-level precision drive technology. In the design of the existing micro-nano positioning operation mechanism, the serial rotary joint control mechanism can realize multi-degree-of-freedom movement, inherits the design characteristics of industrial robot hands and joint coordinate measuring machines, and has the advantages of compact overall structure, large three-dimensional motion range, and flexible control Strong and other advantages, has received widespread attention. In precision rotary positioning dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/10H02N2/12H02N2/14
Inventor 于连栋韩丽玲潘成亮夏豪杰张进张炜鲁思颖赵亚慧张宏伟
Owner HEFEI UNIV OF TECH
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