A SINGLE-DEGREE-OF-FREEDOM MAGNETIC VIBRATION ISOLATION DEVICE

摘要

A single-degree-of-freedom magnetic vibration isolation device belongs to vibration isolation devices and solves the problems of the existing active-passive-combined vibration reduction system which is complex in structure, energy supply-needed, and of low reliability. The single-degree-of-freedom magnetic vibration isolation device comprises a metal conductor sleeve (1), a base (2), an upper annular permanent magnet (3a), a lower annular permanent magnet (3b), a connecting rod (5) and a center permanent magnet (6). The poles of the upper annular permanent magnet and the lower annular permanent magnet facing to each other have reverse polarity and these two magnets connect to the upper end and the lower end of the inner wall of the metal conductor sleeve (1) respectively. The center permanent magnet (6) is arranged on the connecting rod (5) concentrically and fixedly connected with the connecting rod (5). The center permanent magnet (6) is arranged between the upper and the lower annular permanent magnets and can move axially together with the connecting rod (5) between the upper annular permanent magnet and the lower annular permanent magnet. The pole of the center permanent magnet (6) facing to the poles of the upper annular permanent magnet and lower annular permanent magnet has reverse polarity. The single-degree-of-freedom magnetic vibration isolation device is simple in structure, does not need energy supply, and has high reliability, and can generate static magnetic force and dynamic magnetic force. The single-degree-of-freedom magnetic vibration isolation device can connect with a passive vibration isolation system in parallel so as to improve the passive vibration isolation effect of the existing system.