Magnetostrictive drive active and passive integrated multi-degree-of-freedom precision vibration isolation device

Abstract

The invention provides a magnetostrictive drive active and passive integrated multi-degree-of-freedom precision vibration isolating device. The magnetostrictive drive active and passive integrated multi-degree-of-freedom precision vibration isolating device comprises an upper platform, a plurality of drive amplification units, a plurality of passive vibration isolating units, a plurality of locking and limiting devices, a lower platform and a vibration sensor. The drive amplification units, the passive vibration isolating units and the locking and limiting devices are fixed between the upper platform and the lower platform. The vibration sensor is arranged on the upper platform. Rectangular grooves are formed in the outer edge of the upper platform at equal intervals. The number of the rectangular grooves is consistent with the number of the locking and limiting devices. Threaded holes are formed in the top of the upper platform at equal intervals. The number of the threaded holes is consistent with the number of the passive vibration isolating units. The magnetostrictive drive active and passive integrated multi-degree-of-freedom precision vibration isolating device has the characteristics of realizing precise driving and gapless transmission, being high in stroke magnification, firm in locking, and high in bearing capacity, stability and level of integration, being intelligent, and the like.

Description

technical field [0001] The invention relates to the technical field of vibration isolation devices, in particular to a magnetostrictive driven active and passive integrated multi-degree-of-freedom precision vibration isolation platform. Background technique [0002] The vibration isolation device is an elastic element connecting the equipment and the foundation to reduce and eliminate the vibration force transmitted from the equipment to the foundation and the vibration transmitted from the foundation to the equipment. In order to meet the strict and special requirements for the vibration environment in the fields of aerospace, optics, remote sensing, precision manufacturing, etc., especially the requirements for effectively suppressing low-frequency and ultra-low-frequency vibrations, traditional passive vibration isolation methods can no longer meet the requirements and accuracy. [0003] After searching, it is found that the authorized announcement number is: 2605934Y, an...

AI Technical Summary

Problems solved by technology

[0004] 1. Outside the electromagnetic coil of the jacket, the volume is large, and it is not easy to replace the magnet;

[0005] 2. Movement has high friction and high energy loss;

[0006] 3. The output rod of the magnetostrictive driver directly passes through the vibration isolation platform, and the accuracy and stability of the entire vibration isolation device are poor;

[0007] 4. The output stroke of the magnetostrictive drive is limited, which cannot meet various stroke requirements;

[0008] The aforementioned active vibration isolation devices based on giant magnetostrictive drives cannot meet the vibration isolation requirements of modern industries

Images