An hourglass type electromagnetic vibration isolator

Abstract

The invention discloses a sandglass type electromagnetic vibration isolator. The sandglass type electromagnetic vibration isolator comprises a sandglass type frame, a permanent magnet part, an electromagnet part, a sensor, a fastener, and the like, wherein a coil skeleton is fixed to the frame through bolts, and is not provided with an iron core; the permanent magnet part is mounted on a fixed rack; flexible magnetic conductive rubber is arranged on the surface of the permanent magnet part; the electromagnet part and the permanent magnet part are distributed in the middle part of the sandglasstype frame; the sensor is distributed between an upper panel and a lower panel of the frame; and the sandglass type frame is fixed through reamed hole bolts. According to the sandglass type electromagnetic vibration isolator, the structure has an anomalous effect of stretch expansion and a displacement amplification effect, presents more unique mechanical and physical properties, and has the characteristics that the required electric current is small under the same electromagnetic force, output displacement is large, rigidity can be adjusted, the structure is compact and designability is high, by virtue of the characteristics that a sandglass type structure has unique mechanical properties, the electromagnetic active control response speed is high, control is easy.

Description

technical field [0001] The invention belongs to the technical field of vibration control, and mainly relates to an electromagnetic vibration isolator, in particular to an hourglass type electromagnetic vibration isolator. Background technique [0002] In aerospace, precision instrument engineering and other fields, harmful vibration will directly affect the safety and reliability of equipment. For example, external disturbances cause damage to instruments and instruments, and affect the position accuracy of mechanical parts. Therefore, it is of great practical significance to take appropriate vibration control measures. Vibration isolation can be roughly divided into: active vibration isolation, passive vibration isolation and semi-active vibration isolation technology. Among them, the semi-active vibration isolation technology has the advantages of both passive vibration isolation and active vibration isolation. It has better performance than the passive vibration isolat...

AI Technical Summary

Problems solved by technology

Because the traditional electromagnetic vibration isolator requires additional springs to achieve a certain support stiffness, and requires a large current to provide electromagnetic force, which increases the structure complexity and design cost

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