Compound vibration isolating device based on magnetic material and oil damping material

Abstract

The invention relates to a compound vibration isolating device based on a magnetic material and an oil damping material. The compound vibration isolating device comprises a metal spring and is characterized by further comprising a magnetic part, an oil damping part and other auxiliary parts, wherein the magnetic part comprises an iron magnet, a magnet and support plates; the oil damping part comprises a piston, a hydraulic cylinder, viscous liquid, a liquid filtering plate and an oil seal; other auxiliary parts comprise a baffle, a limiting plate, a bottom plate and the like. A method for forming the compound vibration isolating device based on the magnetic material and the oil damping material comprises the following steps: firstly arranging the magnet on the inner wall of a multifunctional sleeve via the support plates in an adhesion or bolt connection manner; then combining the iron magnet, the metal spring and the oil damping part; and finally clamping a combined part in the multifunctional sleeve via an upper limiting plate and a top plate to form the compound vibration isolating device based on the magnetic material and the oil damping material. Through the combined energy consumption of the magnetic part and the oil damping part, the vibration isolation effect of the low-frequency condition can be greatly improved. The compound vibration isolating device can be widely applied to special vibration reduction road sections with high requirements on vibration reduction and noise reduction of rail transit.

Description

technical field [0001] The invention relates to a composite vibration isolation device based on magnetic and oil damping materials, which belongs to the field of vibration and noise control. Background technique [0002] With the rapid development of the economy and the continuous expansion of the city, the subway has become an important means to solve the urban traffic congestion. So far, more than 20 cities in China are building their own subway rail lines, with a total investment of more than 600 billion yuan. However, those subway lines across densely populated and economically developed urban centers have brought environmental pollution problems such as vibration and noise during their long-term operation, which not only endangers the safety of surrounding buildings and precision instruments and equipment, but also indirectly affects daily life and health of the surrounding residents. [0003] The floating track structure is a mass spring system composed of reinforced...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor vibration isolation effect of the floating plate track when the wheel and rail vibrate at low frequency, and propose a composite vibration isolation device based on magnetic and oil damping materials, which includes metal springs, magnetic components, and oil damping components and other accessories

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