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Inertia impact type piezoelectric actuator capable of carrying large load and driving method thereof

A piezoelectric driver, inertial shock technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem that the load capacity of the driver cannot be fully utilized , to achieve the effect of improving the ability to carry vertical loads, small size, and increasing output power

Pending Publication Date: 2021-06-04
曹营华
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  • Application Information

AI Technical Summary

Problems solved by technology

In the previous design, the load is usually added to the main mass, and the main mass and the load are driven by the inertial mass for stepping motion; in this case, the load capacity of the driver cannot be fully utilized

Method used

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  • Inertia impact type piezoelectric actuator capable of carrying large load and driving method thereof
  • Inertia impact type piezoelectric actuator capable of carrying large load and driving method thereof
  • Inertia impact type piezoelectric actuator capable of carrying large load and driving method thereof

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Embodiment Construction

[0022] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0023] see Figure 1 to Figure 5 As shown, the present invention proposes a kind of inertial impact piezoelectric driver with large load and its driving method, designs a kind of novel driver, has improved the band vertical load ability of inertial impact piezoelectric driver, for realizing driver It is of great significance for large load applications.

[0024] The inertial impact piezoelectric driver with a large load is characterized in that the driver includes a load platform (inertial mass) (1), a piezoelectric stack (2), a leaf-shaped flexible hinge (3), Main mass block (4), preload mechanism (5), rolling bearing (6) and base (7). The traditional inertial impact driver usually fixes the load platform to the main mass (4). Through the special design of the amplification mechanism, the present invention real...

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Abstract

The invention relates to an inertia impact type piezoelectric actuator capable of carrying a large load and a driving method thereof, and belongs to the field of precision machinery. The actuator is composed of a load platform (inertia mass block), a piezoelectric stack, a leaf-shaped flexible hinge, a main mass block, a pre-tightening mechanism, a rolling bearing and a base. Linear deformation generated by electrification of the piezoelectric stack is converted into angular displacement of the load platform (inertial mass block) through three blade-shaped flexible hinges which are circumferentially and uniformly distributed by taking a rotation center as an axis, and the angular displacement of the load platform (inertial mass block) is realized based on an inertial impact principle. The actuator has the advantages that: through the special structural design, the load mass is converted into additional inertial mass, the step angle of the main mass block is increased, and a larger vertical load can be driven under a low-voltage condition. The actuator can be used in the fields of micro / nano mechanical testing, optical instruments, precision machining, integrated circuit packaging and the like.

Description

technical field [0001] The invention relates to the field of precision machinery, in particular to an inertial impact piezoelectric driver capable of carrying a large load and a driving method thereof. The invention solves the contradiction between the size of the inertial impact piezoelectric driver and the load, and simultaneously can realize the movement of large load with low voltage. The invention can be used in the fields of micro / nano mechanical testing, optical instruments, precision processing, integrated circuit packaging, bioengineering, aerospace technology and the like. Background technique [0002] Since the 21st century, aerospace, material science, bioengineering, and precision mechanical instruments have gradually become key scientific and technological fields. With the continuous development of these technologies, the mechanical field has also ushered in extremely complex, huge, and ultra-precision Extreme direction challenge. Based on physical effects su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/12H02N2/14
CPCH02N2/123H02N2/142
Inventor 曹营华衣春学游琳敬邬雅轩汤纪洲黄虎徐智
Owner 曹营华
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