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A Planar Three-Stage Amplifying Mechanism and Method Based on Rhombus Ring and Lever Principle

A technology of three-stage amplification and leverage principle, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of limited use occasions and large volume, and achieve Simple processing, small size and light weight

Inactive Publication Date: 2018-08-28
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the common high-magnification displacement amplifiers are often three-dimensional structures, which are large in size and limited in use, so a planar amplification mechanism with high magnification is urgently needed

Method used

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  • A Planar Three-Stage Amplifying Mechanism and Method Based on Rhombus Ring and Lever Principle
  • A Planar Three-Stage Amplifying Mechanism and Method Based on Rhombus Ring and Lever Principle
  • A Planar Three-Stage Amplifying Mechanism and Method Based on Rhombus Ring and Lever Principle

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, the present invention is a planar three-stage amplifying mechanism based on the principle of rhombus rings and levers, including a base 9, a piezoelectric ceramic 1 placed in the z direction and polarized in the same direction in a pre-compressed state. After power-on, z The small displacement in the direction; the rhombic ring 2 containing the piezoelectric ceramic 1; the first support arm 3-1 and the second support arm 3-2 connected with the short axis of the rhombic ring 2, the first support arm 3-1 and the second The other end of the support arm 3-2 is respectively connected to the first lever 6-1 and the second lever 6-2 by the first flexible hinge 4-1 and the second flexible hinge 4-2, wherein the first support arm 3-1 is connected to the second lever 6-2. One lever 6-1, the second support arm ...

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Abstract

The invention discloses a plane three-stage amplifying mechanism and method based on a rhomboic ring and a lever principle. The amplifying mechanism is integrally designed, and comprises a base, piezoelectric ceramic, a rhomboic ring, first and second supporting arms, and first and second flexible hinges, wherein the piezoelectric ceramic provides input displacement in a z direction and is in a pre-tightening state; the short shaft of the rhomboic ring is connected with first and second levers together by the first and second supporting arms; the tail ends of short arms of force of the first and second levers are connected with the base through third and fourth flexible hinges, and the tail ends of long arms of force of the first and second levers, and third and fourth supporting arms form an amplifying mechanism of a half rhomboic ring; and the short shaft of the half rhomboic ring is an amplifying displacement output end in the z direction. By virtue of a rhomboic ring displacement amplifying stage, a lever displacement amplifying stage and a half rhomboic ring displacement amplifying stage, the plane amplifying mechanism disclosed by the invention has the three-stage amplifying characteristic, and has the advantages of compact and simple structure, small size, light weight and high amplification times.

Description

technical field [0001] The invention relates to a displacement amplifier, in particular to a plane three-stage amplification mechanism and method based on the principles of rhombus rings and levers. Background technique [0002] At present, piezoelectric materials have the characteristics of fast response speed, strong output force, and good reliability, and have been widely used in many fields. However, the displacement that can be generated by traditional unimorph actuators is very small, and an amplification mechanism is required to produce it. Only by amplifying the displacement can it be more and better used in practice. At present, the common high-magnification displacement amplifiers are usually three-dimensional structures, which are large in size and limited in application occasions. Therefore, a planar amplification mechanism with high magnification is urgently needed. Contents of the invention [0003] The purpose of the present invention is to overcome the def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/06H02N2/04
CPCH02N2/04H02N2/06
Inventor 雷俊琪徐明龙马国亮刘开园
Owner XI AN JIAOTONG UNIV
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