Giant magnetostictive driver

Abstract

The invention discloses a giant magnetostictive driver. The giant magnetostictive driver comprises a shell, a shape memory alloy spring, a connecting rod, a giant magnetostictive stick and an output rod, wherein the shell comprises an upper shell and a lower shell; the lower end of the upper shell is connected with the upper end of the lower shell through a middle cover; a thermal insulation sleeve and a coil are arranged in the lower shell, and the coil is located in the thermal insulation sleeve; the shape memory alloy spring is arranged at the center of the coil; the upper end of the shape memory alloy spring is connected with the lower end of the connecting rod; a top cover is arranged at the top of the upper shell; the coil is arranged in the upper shell, and the giant magnetostictive stick is arranged at the center of the coil; a permanent magnet is arranged on each of the upper side and the lower side of the coil; the upper end of the connecting rod penetrates the middle cover to contact with the lower end of the giant magnetostictive stick; the output rod penetrates the top cover, and the lower end is contacted with the upper end of the giant magnetostictive rod; and the output rod is connected with the top cover through the spring. The giant magnetostictive driver disclosed by the invention has the advantages of being simple in structure, large in driving displacement, large in driving force, fast in response time, reusable and high in reliability.

Description

technical field [0001] The invention relates to a giant magnetostrictive driver. Background technique [0002] Shape memory alloys and giant magnetostrictive materials are common driver materials. Drivers made of shape memory alloy materials and giant magnetostrictive materials have the advantages of low driving voltage, small size, no noise, and large driving force. Therefore, it is of great application value to develop a driver with the characteristics of large driving force, large displacement and fast response. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a giant magnetostrictive driver with simple structure, large driving force, large displacement, fast response speed and high reliability. [0004] The technical solution of the present invention to solve the above problems is: a giant magnetostrictive driver, including a housing, a shape memory alloy spring, a connecting rod, a giant magnetostrictiv...

AI Technical Summary

Problems solved by technology

[0002] Shape memory alloys and giant magnetostrictive materials are common driver materials. Drivers made of shape memory alloy materials and giant magnetostrictive materials have the advantages of low driving voltage, small size, no noise, and large driving force. Therefore, it is of great application value to develop a driver with the characteristics of large driving force, large displacement and fast response.

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