Magnetic control vibration isolation device

Abstract

The invention discloses a magnetic control vibration isolation device. The magnetic control vibration isolation device comprises a magnetic control damping device and a magnetic control elastic device, wherein the magnetic control damping device comprises an outer sleeve inside which a first iron core is arranged, the first iron core is provided with a first magnet exciting coil, a connecting rod is fixedly connected with a first iron core, two ends of the connecting rods extend out of the outer sleeve respectively, and the inner cavity of the outer sleeve is filled with magnetorheological elastomers; the magnetic control elastic device comprises a second iron core, a third iron core and an connecting sleeve, two ends of the connecting sleeve are fixedly connected with the second iron core and the third iron core, the second iron core and the third iron core are respectively provided with second magnet exciting coils, a pressing plate is arranged between the second iron core and the third iron core, the portions between the pressing plate and the second iron core and the pressing plate between the third iron core are provided with first magnetorheological elastomers and second magnetorheological elastomers respectively; one end of the connecting rod penetrates the second iron core and the first magnetorheological elastomers to be connected with the pressing plate, and the second iron core is connected with the outer sleeve. The damping and elasticity modulus of the magnetic control vibration isolation device can be adjusted according to frequency of basic vibration, good vibration isolation performance can be obtained and vibration deterioration can be avoided.

Description

technical field [0001] The invention relates to the field of vibration isolation devices, in particular to a magnetically controlled vibration isolation device. Background technique [0002] As the optical industry, semiconductor industry, aerospace and microelectronics technology have entered the era of precision or ultra-precision, micro-vibration not only affects the accuracy and service life of instruments and equipment, but has even affected the normal work of operators and the maintenance of precision platforms. service life. Therefore, the impact of micro-vibration generated by the application environment on precision instruments and equipment has become a bottleneck restricting the development of high-tech in some fields, and has been highly valued by various industries and technical fields. Micro-vibration isolation has therefore become an urgent task. . For the micro-vibration caused by external environmental interference during the use of precision instruments a...

AI Technical Summary

Problems solved by technology

At present, passive vibration isolation devices are widely used, and air springs and rubber vibration isolation devices are representative. However, the stiffness of existing vibration isolation devices is a fixed value, which cannot solve the environmental vibration frequency of precision instruments and equipment during operation. Changes causing problems with vibration deterioration

Moreover, these vibration isolation devices are affected by the structure and materials, and the vibration isolation performance is poor, which cannot meet the needs of precision instruments and equipment.

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