Single degree-of-freedom magnetic vibration isolation device

US9829059B2 · kind B2 · utility

Assignee

• Huazhong University of Science and Technology · CN

Inventors

• Xuedong Chen · Reno, US
• Zilong Li · 恩江镇, CN

Key dates

• Filing date: Jun 20, 2014
• Grant date: Nov 28, 2017
• Expiry date: Jun 20, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2232/08
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A single-degree-of-freedom magnetic vibration isolation device belongs to vibration isolation devices and solves the following problems: the existing active and passive combined vibration reduction system is complex in structure, needs energy supply, and has low reliability. The present invention includes a metal conductor sleeve, a base, an upper annular permanent magnet, a lower annular permanent magnet, a connecting rod and a center permanent magnet; poles of the upper annular permanent magnet and the lower annular permanent magnet facing to each other have reverse polarity, which are connected to an upper end and a lower end of an inner wall of the metal conductor sleeve respectively; the center permanent magnet is concentrically sleeved on the connecting rod and fixedly connected therewith, and the center permanent magnet is located between the upper annular permanent magnet and the lower annular permanent magnet, and is capable of moving axially together with the connecting rod between the upper annular permanent magnet and the lower annular permanent magnet; and the pole of the center permanent magnet facing to the poles of the upper annular permanent magnet and the lower an…