Vibration isolator

Abstract

The invention relates to the technical field of structural vibration control and discloses a vibration isolator. The vibration isolator comprises a steel plate spring, a first air spring, a second air spring, a foundation and a device waiting vibration isolation, wherein the first air spring and the second air spring are horizontally arranged and are located on the two sides of the device waiting vibration isolation, and the two ends of each of the first air spring and the second air spring are hinged to the foundation and the device waiting vibration isolation respectively through bolts; the two air springs provide non-linear restoring force and damping force for the device waiting vibration isolation and guarantee that the device waiting vibration isolation moves in the vertical direction; the steel plate spring is horizontally arranged and provides linear and elastic support for the device waiting vibration isolation, and the two ends of the steel plate spring are fixedly connected to the device waiting vibration isolation and the foundation respectively through bolts. The vibration isolator has the advantages that the static deformation can be effectively reduced, and therefore the static rigidity can be improved, and the stability of a system can be improved; the inherent frequency of the system can be effectively lowered, and therefore the vibration isolation area can be expanded, and the vibration isolation efficiency can be improved; the transmissibility of a resonance region and a vibration isolation region can be simultaneously and effectively lowered, and therefore the vibration isolation effect of the vibration isolator can be improved.

Description

Technical field [0001] The invention relates to a vibration isolator, belonging to the technical field of structural vibration control. Background technique [0002] Vibration isolation is a technology that uses a vibration isolator between a vibration source and a vibration isolator to control vibration. The vibration isolator can be used to weaken the propagation of various harmful vibrations. [0003] Currently, the most widely used is linear vibration isolator. In the vibration isolation technology, reducing the stiffness of the vibration isolator is a common method to improve the vibration isolation effect. However, the stiffness of the vibration isolator cannot be reduced indefinitely. A vibration isolator that is too soft will have a large static deformation under the action of the machine's gravity, which will make the stability of the system worse and bring difficulties to the realization of low-frequency vibration isolation. In order to improve the vibration isolation e...

AI Technical Summary

Problems solved by technology

However, the common nonlinear vibration isolator design usually has the following deficiencies, one is the poor vibration isolation effect at the low frequency stage, and the other is the poor stability during static balance

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