Magnetic suspension low-frequency shock absorber

Abstract

The invention discloses a magnetic suspension low-frequency shock absorber. The magnetic suspension low-frequency shock absorber comprises a damping unit group arranged between an upper base and a lower base. Each damping unit in the damping unit group comprises a metal wire rubber sleeve, an upper iron core rod and a lower iron core rod, wherein the upper iron core rod and the lower iron core rodare arranged in the metal wire rubber sleeve and provided with an upper electrification coil and a lower electrification coil correspondingly, the upper end of the upper iron core rod and an upper load-bearing bearing on the upper base are installed and connected, the lower end of the lower iron core rod and a lower supporting bearing on the lower base are installed and connected, and an upper magnet and a lower magnet are arranged at the opposite ends of the upper iron core rod and the lower iron core rod correspondingly; and the upper iron core rod or the lower iron core rod is provided with a displacement sensor, and the upper electrification coil, the lower electrification coil and the displacement sensor are connected with a control adjusting system through an electrification coil outgoing line and a sensor outgoing line. According to the magnetic suspension low-frequency shock absorber, the displacement sensors are used for detecting the iron core rod displacement value, the received displacement value is fed back to the control adjusting system for current adjustment, magnetic force is subjected to negative feedback adjustment, and accordingly optimal regulation and controlover heavy load microwave vibration are achieved.

Description

technical field [0001] The invention relates to vibration and noise control technology, in particular to a magnetic suspension low-frequency shock absorber. Background technique [0002] With the continuous development of the manufacturing process, it has been difficult to control the vibration problems of many manufacturing equipment, especially the low-frequency resonance problems caused by the mismatch of the inertia of the mechanical system. [0003] Common types of shock absorbers include metal springs, rubber springs, air springs, oil-gas springs, hydraulic springs, and magnetorheological springs. Among them, rubber sleeves and air springs are the most commonly used for vibration reduction in China, but these vibration isolators do not have a good vibration isolation effect on the low-frequency vibration generated by the exciter in some cases. Contents of the invention [0004] Aiming at the deficiencies of the existing technology, the technical problem to be solved...

AI Technical Summary

Problems solved by technology

Among them, the most commonly used domestic vibration reduction is to use rubber sleeves and air springs for vibration reduction, but these vibration isolators do not have a good vibration isolation effect on the low-frequency vibration generated by the exciter in some cases

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