Double-layer buoyant raft vibration reduction device and method

Abstract

The invention relates to a double-layer buoyant raft vibration reduction device and method. The double-layer buoyant raft vibration reduction device comprises a base, a raft frame and a transfer tool which are sequentially arranged from bottom to top. The base and the raft frame are connected through two sets of steel wire rope vibration reducers. The spiral center lines of steel wire ropes in the two sets of steel wire rope vibration reducers are perpendicular to each other and are both horizontally arranged. The steel wire rope vibration reducers are used for absorbing vibration between the base and the raft frame in any direction. The raft frame and the transfer tool are connected through a vibration reduction connecting piece with the vertical axis. Metal rubber gaskets are arranged at the two ends of the vibration reduction connecting piece and can absorb vibration between the raft frame and the transfer tool in the vertical direction.

Description

technical field [0001] The disclosure belongs to the technical field of vibration isolation and damping equipment, and in particular relates to a double-layer floating raft vibration damping device and method. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Modern precision equipment is very sensitive to the working environment, especially the vibration environment. The harsh vibration environment will not only threaten the long-term reliable operation of the equipment, but also affect its normal work. In engineering practice, precision equipment is usually installed on a vibration-damping platform, and the vibration environment in which it is located is improved through the vibration-damping platform. The vibration-damping floating raft is a typical vibration-damping platform, which is very suitable for vibration-damping large-scale equipment d...

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Problems solved by technology

[0004] The inventors have learned that the existing floating raft vibration damping devices can consume the vibration energy on the transmission path and improve the vibration damping performance, but there are still some deficiencies, for example, most vibration damping devices can only Vibration reduction cannot effectively absorb and offset vibrations in different directions. The device occupies a large space, has a complex structure, is inconvenient to install and use, has poor corrosion resistance, and cannot be used in some complex environments. The effect is poor, and it cannot effectively isolate random vibrations of different frequencies

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