An electromagnetic permanent magnet combined suspension vibration isolation device

Abstract

The invention provides an electromagnetic permanent magnet combination suspension vibration isolation device. The electromagnetic permanent magnet combination suspension vibration isolation device comprises a magnetic suspension pillar and a vibration isolation support located below the magnetic suspension pillar. The magnetic suspension pillar is composed of an outer magnetic pillar, an inner magnetic pillar and an inner magnetic pillar support. The inner magnetic pillar is sleeved with the outer magnetic pillar without contact, the bottom of the inner magnetic pillar is arranged on the inner magnetic pillar support, and an upper structure is fixed to the top of the inner magnetic pillar. The outer magnetic pillar and the inner magnetic pillar support are fixed to the vibration isolation support. The upper structure is provided with a vibration sensor. The inner magnetic pillar support and the vibration sensor are connected with a control system. The outer magnetic pillar comprises an outer magnetic pillar permanent magnet and an outer magnetic electromagnet. The inner magnetic pillar comprises an inner magnetic pillar permanent magnet. A magnetic force line loop is formed by the inner magnetic pillar and the outer magnetic pillar. When the outer magnetic pillar and the inner magnetic pillar are staggered in the vertical direction, the inner magnetic pillar and the outer magnetic pillar correspondingly produce magnetic force with the direction opposite to the staggering direction. The electromagnetic permanent magnet combination suspension vibration isolation device is good in economical efficiency, the aseismic design standard of a structural body can be greatly lowered under the situation that the earthquake action is basically eliminated, and the expenditure of engineering structure construction is reduced; the property loss and the personnel loss caused by earthquakes can be eliminated, and the mental stress of human facing nature threats is eliminated.

Description

technical field [0001] The invention relates to an engineering structure vibration damping device, in particular to an electromagnetic permanent magnet combined suspension vibration isolation device. Background technique [0002] Magnetic suspension vibration isolation is a new type of active vibration isolation method. It is supported by an actively controlled magnetic field between the vibration source and the structure, so that the vibration source and the structure are completely separated from mechanical contact to achieve the purpose of isolating vibration. Magnetic suspension vibration isolation technology has been successfully used in aerospace, navigation, railway transportation, wind power generation and other fields, but it has not been used in civil engineering. This application is a specific implementation device of the patent "Technical Application of Magnetic Suspension in the Field of Anti-vibration of Engineering Structures" (ZL200910111587.2). [0003] The...

AI Technical Summary

Problems solved by technology

Although the superconducting technology with a suspension height of 10cm can be used after the superconducting technology is mature, the cost is greatly reduced, and the maintenance is simple and feasible, it is unrealistic to use superconducting technology in civil engineering with a large amount and a wide area at this stage

Images