Three-dimensional vibration isolation device combining inerter and rubber support

Abstract

The invention belongs to the field of vibration and noise control, and relates to a three-dimensional vibration isolation device combining an inerter and a rubber support. The three-dimensional vibration isolation device combining the inerter and the rubber support comprises a spiral spring, a rotary shaft, a rotary disc, rotary disc constraint parts, coils, neodymium magnets, damping liquid, damping rods, an upper sleeve, a lower sleeve, a Teflon sleeve, laminated rubber, a lead core, a rubber protective sleeve, an upper connecting plate, a lower connecting plate, a rubber support upper protection plate and a rubber support lower protection plate. According to the three-dimensional vibration isolation device combining the inerter and the rubber support, three-dimensional vibration isolation is achieved by connecting an inerter vibration isolation system and the rubber support in a decoupling mode; and effective vertical vibration isolation can be achieved by connecting the spiral spring and the inerter system in parallel, horizontal vibration isolation can be achieved by the rubber support, and a decoupling system is arranged, so that horizontal vibration isolation and vertical vibration isolation function respectively to achieve three-dimensional vibration isolation. The three-dimensional vibration isolation device combining the inerter and the rubber support is widely applicable to buildings built over a subway and important instruments and equipment with three-dimensional vibration isolation requirements, and the three-dimensional vibration isolation effect is better than that of an existing steel spring vibration isolator.

Description

technical field [0001] The invention relates to a three-dimensional vibration isolation device combined with an inertial capacity and a rubber bearing, which belongs to the field of vibration and noise control. Background technique [0002] With the rapid development of social economy and the continuous expansion of the city, urban traffic is developing towards diversification. On the basis of urban roads, rail transit has become an important means to solve urban traffic congestion. At present, more than 20 cities in China have or plan to build subway rail lines, with a total investment of more than 600 billion yuan. When rail transit lines pass through populated areas, their long-term operation will inevitably cause vibration and noise pollution. Vibration has been considered as one of the seven major public hazards in the world. Vibration and noise pollution will inevitably affect the surrounding areas on or around rail transit lines The health of residents will be advers...

AI Technical Summary

Problems solved by technology

In industrial plants, the operation of equipment will also cause large vibrations in the plant. Long-term vibration will easily cause fatigue of employees, affecting the health of workers and the efficiency of production.

[0005] As a result, buildings near urban traffic arteries will be affected by the vibrations generated by vehicles, which will adversely affect the living health and work efficiency of residents in the buildings; at the same time, environmental vibrations will also seriously affect the accuracy of instruments.

At present, steel springs are usually used for vibration control by vibration isolation methods, and steel springs have a single vibration isolation frequency, which cannot take into account the vertical load and vibration isolation effects, and the poor performance in three-dimensional vibration isolation cannot achieve vibration isolation well. The goal and application also have certain limitations, so the development of more efficient three-dimensional vibration isolation devices has a good application prospect

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