Spring friction shock isolation support

Abstract

The invention discloses a spring friction shock isolation support, comprising an upper connecting plate, a lower connecting plate, a disc spring set, an upper connecting barrel and a lower connectingbarrel, wherein the disc spring set comprises a disc spring and a rigidity adjusting mechanism arranged in the disc spring. The two ends of the disc spring are fixedly connected with the upper connecting plate and the lower connecting plate respectively. The rigidity adjusting mechanism comprises a vibration detecting component and an elastic block slidably embedded in an interlayer of the disc spring. The elastic block is linked to the vibration detecting component. The spring friction shock isolation support disclosed by the invention can effectively achieve a vertical shock isolation structure through the arrangement of the upper connecting plate, the lower connecting plate, the disc spring set, the upper connecting barrel and the lower connecting barrel, and can effectively adjust therigidity of the disc spring set through the arrangement of the rigidity adjusting mechanism. Therefore, the problem that the disc spring is unable to isolate shock caused by deformation failure due tothe excessive rigidity in the prior art is solved.

Description

technical field [0001] The invention relates to a vibration-isolation bearing, more specifically to a spring-friction vibration-isolation bearing. Background technique [0002] Earthquake disasters bring immeasurable loss of life and property to human beings. The base isolation (vibration) system is to install some kind of isolation and energy dissipation device between the upper structure and the foundation to reduce the transmission of seismic (vibration) energy to the upper part and achieve the purpose of reducing structural vibration. [0003] The research on the horizontal isolation technology of building foundations has achieved remarkable results, and has been widely used in engineering practice. However, there are relatively few researches on isolation (vibration) of environmental vibration induced by subway operation and vertical vibration caused by vertical earthquake. In actual engineering, it is difficult to significantly reduce the vertical stiffness if the se...

AI Technical Summary

Problems solved by technology

Therefore, the difficulty in the vertical seismic isolation (vibration) design of buildings lies in how to provide effective vertical support for the superstructure at the same time, increase the vertical period of the structure after isolation (vibration) with high strength, and avoid overturning of the superstructure at the same time. Therefore, the prior art provides a vertical vibration isolation bearing with friction damping, which enhances the vertical vibration isolation of the vibration isolation bearing by arranging a disc spring group and a friction damping structure. effect, however, the stiffness of the existing disc spring group is fixed, and the vibration frequency and amplitude are changed during the operation of the subway, and the vibration isolation process of the above-mentioned vibration isolation bearing is mainly The corresponding vibration energy is absorbed by the deformation of the disc spring group, so if the vibration intensity is small, it is easy to cause the disc spring to fail to deform, so that the upper and lower connecting plates become a rigid connection, thereby losing The corresponding shock isolation effect, or when the vibration intensity is high, the disc spring cannot effectively absorb the vibration energy due to insufficient stiffness, resulting in poor shock isolation effect

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