Bidirectional Linear Actuator Based on Shape Memory Material Actuator

A technology of linear actuators and memory materials, which is applied to mechanisms that generate mechanical power, machines/engines, and mechanical equipment. It can solve problems that limit the application of piezoelectric actuators, complex structures, and small driving strokes, and achieve controllable displacement and volume. The effect of small, large drive output displacement
CN102889188BInactive Publication Date: 2015-11-25HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2015-11-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a two-way linear driver based on a shape memory material actuator and belongs to a linear driver technique. A stator and an end cover are respectively and fixedly arranged at the two end parts of a shell through a stator installation bolt and an end-cover installation bolt, a rotor is configured in the shell, the two side parts of the rotor are respectively inserted in the central holes of the stator and the end cover, an S-shaped shape memory polymer composite material actuator is configured in a central inner hole on one side of the rotor, the two ends of the S-shaped shape memory polymer composite material actuator are respectively fixedly connected with the stator and the rotor through a stator bolt and a power bolt, and the two ends of a shape memory alloy tension spring are respectively connected with the stator and the rotor. The driver disclosed by the invention is simple and compact in structure, large in drive output displacement, reliable in use, easy to operate and controllable in displacement, and can be used for achieving an effect of two-way linear drive.
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Description

technical field

[0001] The invention belongs to a linear actuator, and mainly relates to a bidirectional linear actuator based on a shape memory material actuator. Background technique

[0002] The piezoelectric actuator in the linear actuator is a micro-displacement device made by using the inverse piezoelectric effect of piezoelectric materials, which has the advantages of good stability, rapid response, accurate positioning and large driving force. However, the disadvantage of the piezoelectric actuator is that the driving stroke is too small, and the reverse return motion needs to be equipped with a complicated mechanical structure, which limits the application of the piezoelectric actuator. Contents of the invention

[0003] The purpose of the invention is to solve the above-mentioned problems in the prior art, and to design and provide a bidirectional linear actuator based on a shape memory material actuator, so as to achieve the goals of simplified structure, high d...

Claims

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