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Orthogonal piezoelectric displacement amplifying mechanism

A technology of displacement amplification mechanism and amplification mechanism, which is applied in the direction of piezoelectric devices/electrostrictive devices, etc., can solve the problems of not being able to give full play to the driving performance of piezoelectric materials, reduce the output force of the driver, and complicate problems, and achieve simple structure and high output. The effect of high force and excellent dynamic characteristics

Inactive Publication Date: 2013-04-03
SOUTHEAST UNIV
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Problems solved by technology

However, these studies are too complicated, and while achieving displacement amplification, the output force of the driver is greatly reduced, and the excellent driving performance of piezoelectric materials cannot be fully utilized.

Method used

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  • Orthogonal piezoelectric displacement amplifying mechanism
  • Orthogonal piezoelectric displacement amplifying mechanism
  • Orthogonal piezoelectric displacement amplifying mechanism

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] The orthogonal displacement amplification mechanism of the present invention can be made of steel, copper alloy, aluminum alloy and other related metal materials, and can be manufactured as a standard part, or the size of each part can be designed according to the parameters required by the user, or it can be combined with a certain instrument The equipment is made into one.

[0018] like figure 1 As shown, the displacement amplifying mechanism 1 has a rhombus-shaped symmetrical structure, and the four hypotenuse columns of the displacement amplifying mechanism 1 and the two diagonals of the rhombus form four mutually symmetrical non-isosceles right-angled triangles. To achieve displacement amplification. The displacement amplification mechanism adopts rigid connection to improve the output force and response speed, and adopts the tria...

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Abstract

The invention discloses an orthogonal piezoelectric displacement amplifying mechanism which is in a diamond symmetrical structure. Two diagonals of the diamond are mutually perpendicular but not equal in length. Laminated piezoelectric ceramic is disposed along the long diagonal of the diamond. Two corners along the short diagonal of the diamond are provided with a fixed surface and a stress surface respectively. The fixed surface and the stress surface are parallel with the laminated piezoelectric ceramic. Compared with common displacement amplifying mechanisms, the orthogonal piezoelectric displacement amplifying mechanism has the advantages of high amplifying ratio, large output force, fast response, simple structure, easiness in processing, convenience in use, easiness in modularization, resistance to electromagnetic interference and the like. Effective force output is maintained while piezoelectric displacement amplification is achieved. The orthogonal piezoelectric displacement amplifying mechanism is also excellent in dynamic performance. Therefore, as a driver, the orthogonal piezoelectric displacement amplifying mechanism has important value of application to the fields of micrometric displacement mechanical systems, micrometric displacement positioning, proportional values and pumps, nozzles, optical precision instruments, aerospace control and the like.

Description

technical field [0001] The invention relates to a micro-displacement amplifying mechanism, in particular to an orthogonal piezoelectric displacement amplifying mechanism, which belongs to the technical field of precision mechanical transmission. Background technique [0002] With the rapid development of mechanical devices represented by robots, precision machinery continues to develop in the direction of high precision and high response speed. The traditional transmission mechanism is mainly realized by electric motor or hydraulic device. However, there are many deficiencies in the motor or hydraulic device, such as large volume, complex mechanism, low precision, low response speed, etc., which cannot meet the needs of modern precision machinery. [0003] In recent years, piezoelectric materials have been widely researched and applied at home and abroad because of their high response speed, large thrust, and good linearity. But generally speaking, the output displacement ...

Claims

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Application Information

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IPC IPC(8): H01L41/09
Inventor 金龙靳宏徐志科陆旦宏胡敏强
Owner SOUTHEAST UNIV
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