Vibration isolation system of vibrating centrifuge

Abstract

The invention discloses a vibration isolation system of a vibrating centrifuge. The vibration isolation system comprises a vibration isolation device, wherein the vibration isolation device comprises a guide rod, the axial direction of the guide rod is taken as the up-and-down direction, the upper end of the guide rod is connected with a rotating arm support of the vibrating centrifuge, the lower end of the guide rod sequentially penetrates through an upper-layer rigid plate, a middle-layer rigid plate and a lower-layer rigid plate, a linear bearing is connected with a regulating block, the regulating block is mounted on the lower-layer rigid plate, the lower end of the guide rod penetrates through the linear bearing, the two ends of the lower-layer rigid plate are respectively connected with the inner side of a support of a rotating arm system of the vibrating centrifuge, a force sensor is positioned between the rotating arm support and the upper-layer rigid plate, and an air spring is positioned between the upper-layer rigid plate and the middle-layer rigid plate. By adopting the structure that the air spring cooperates with the rigid plates, the imbalance force of the support of the rotating arm system relative to the rotating arm support is buffered and the vibration isolation purpose can be achieved. The vibration isolation system disclosed by the invention has the advantages of small dynamic rigidity, small inherent frequency, great static rigidity, good vibration isolation performance and capabilities of isolating vibration waves with higher frequency and bearing greater imbalance force.

Description

technical field [0001] The invention relates to a vibration isolation system for a vibrating centrifuge, in particular to a vibration isolation system used for vibration isolation between a rotating arm system support and a rotating arm support of a vibrating centrifuge, with small dynamic stiffness and natural frequency and high static stiffness. Background technique [0002] Vibrating centrifugal compound centrifuge is referred to as vibrating centrifuge, including geotechnical vibrating centrifuge and routine vibrating centrifuge. [0003] The geotechnical vibrating centrifuge is mainly used for the research of geotechnical engineering earthquake problems. It can provide a test model vibration centrifugal composite environment to simulate the stress conditions in the prototype stress field and accurately reproduce the real dynamic response of the prototype under actual stress conditions. At present, the geotechnical vibrating centrifuge has developed from one-dimensional ...

AI Technical Summary

Problems solved by technology

Because the design of the natural frequency of the leaf spring is difficult, if the design is not proper, it is easy to cause the resonance of the arm system

In addition, for large-capacity vibrating centrifuges, the mass of the rotating arm system is relatively large. If this hoisting method is still used, the reliability of the entire centrifuge system will be reduced.

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