Double-clamping driving device based on magneto-rheological elastomer magnetostriction principle

Abstract

The invention discloses a magnetorheological elastomer magnetostriction principle-based double-clamping driving device, which comprises a rod piece, a driving shell I, a driving shell II, a driving body, a clamping body I and a clamping body II, and is characterized in that the driving body and the clamping body both comprise coil mounting seats, excitation coils and coil iron cores, the excitation coils are wound in the coil mounting seats, and the coil iron cores are wound in the coil mounting seats; the coil iron core of the driving body, the second magneto-rheological elastomer and the driving shell are installed, the second magneto-rheological elastomer and a second inner cavity of the driving shell form a space for installing the coil installation base, and the coil iron cores of the first clamping body and the second clamping body are in an L shape. And a space for mounting the coil mounting seat is formed by the coil mounting seat, a non-magnetic ring arranged on the rod piece, the first magneto-rheological elastomer and the third magneto-rheological elastomer, wherein the non-magnetic ring, the first magneto-rheological elastomer and the third magneto-rheological elastomer are sleeved. The device is driven through the magnetostriction characteristic of the magnetorheological elastomer, and the device has the advantages of being stable in performance, free of sealing, high in heat dissipation effect, rapid in device response and the like.

Description

technical field [0001] The invention relates to the field of viscoelastic material magnetic control micro-displacement devices, in particular to a double clamp drive device based on the principle of magneto-rheological elastomer magnetostriction. Background technique [0002] Magnetostriction refers to a ferromagnetic material whose size changes significantly when an object is magnetized in a magnetic field, extending or shortening in the direction of magnetization. Ferromagnetostrictive material. Its size change is much larger than that of magnetostrictive materials such as ferrite, and the energy generated is also large, so it is called giant magnetostrictive material. Since the discovery of the magnetostrictive effect of matter, people have been trying to use this physical effect to manufacture useful functional devices and devices. Therefore, people have researched and developed a series of magnetostrictive materials, mainly in three categories: namely: magnetostrictiv...

AI Technical Summary

Problems solved by technology

However, existing magnetostrictive actuators have disadvantages such as poor device stability, poor sealing, poor heat dissipation, and slow response speed.

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