Equipment vibration isolation substrate

Abstract

The invention discloses an equipment vibration isolation substrate comprising an upper vibration isolation structure, a lower vibration isolation structure and damping limiters. The upper vibration isolation structure comprises an upper support steel plate, an upper rigid mass block and an upper vibration isolator. The upper rigid mass block is a cubic structure. The upper support steel plate is horizontally arranged on top of the upper rigid mass block. The lower vibration isolation structure comprises a lower rigid mass block, a middle support steel plate, a lower support steel plate and a lower vibration isolator. The lower rigid mass block is a four-side box structure. The lower support steel plate is horizontally arranged at the bottom of the lower rigid mass block. The middle support steel plate is horizontally arranged on upper part of the lower rigid mass block. The upper rigid mass block is installed in the middle of the lower rigid mass block and on the lower support steel plate. The lower rigid mass block is around the upper rigid mass block. The damping limiters are arranged on the periphery of the vibration isolation structures. The total height of the two vibration isolation structures are effectively lowered, the resonance vibration can be eliminated, and the displacement at equipment start and stop stages can be effectively controlled.

Description

Technical field [0001] The invention relates to a technique for controlling and reforming the vibration and noise of equipment and preventing the vibration solid transmission of the equipment structure. Background technique [0002] The main mode of transmission of equipment vibration noise is structural noise transmitted by low-frequency vibration through building structures. Attenuation of the vibration transmission of the equipment is achieved by eliminating rigid connections between them. The current method to solve the problem is to configure a vibration isolation base composed of a rigid mass block and a vibration isolator between the equipment and the building structure. Since the equipment is in the start-up and shutdown stages, at a certain stage during the change of the speed from 0 to the rated speed, there will inevitably be a situation where the natural frequency of the damping spring vibration isolator is consistent with the disturbance frequency of the rotati...

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Problems solved by technology

[0004] In order to overcome the increase in the overall height of the equipment, the existence of resonance phenomena and the lack of starting displacement of the equipment caused by the secondary vibration isolation structure of the equipment, the purpose of the present invention is to provide a secondary vibration isolation structure of the equipment, which has a low overall height and can eliminate the resonance phenomenon , and can effectively control the vibration isolation base of the equipment during the startup and shutdown phases of the equipment

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