Vibration-isolating rubber cushion with adjustable rigidity

Abstract

The invention relates to a vibration-isolating rubber cushion with adjustable rigidity, comprising an upper end plate, a lower end plate, a steel plate unit and a rubber unit. The steel plate unit and the rubber unit are staggered and stacked to form a stacking unit which is provided with the upper end plate at the top and the lower end plate at the bottom, wherein the upper end plate and the lower end plate have the same structure, the top of the upper end plate and the bottom of the lower end plate are respectively provided with grooves the shapes and the sizes of which are consistent with those of the stacking unit, the grooves are internally provided with bolt holes arranged in a centrosymmetric arrangement mode, the stacking unit is provided with rigidity-adjusting bolt holes in the centrosymmetric arrangement mode, anchor bolt holes are arranged around the upper end plate and the lower end plate, and a rigidity-adjusting bolt respectively and sequentially penetrates through the bolt holes and the rigidity-adjusting bolt holes of the upper end plate and the bolt holes of the lower end plate. The invention has the advantages of adjustable rigidity, wide range of application, simple manufacture process, convenient transportation and flexible application, is suitable for standard mass production in factories and adjustment and mounting according to the needs of a user party and is suitable for resisting the vibration of structures and equipment, particularly resisting, lessening and shielding the vibration of special industrial equipment with small loads and frequent site adjustment.

Description

technical field [0001] The invention relates to a rubber shock-absorbing pad with adjustable stiffness. Background technique [0002] Earthquakes cause serious damage to various building structures and equipment, and will lead to paralysis of the entire social life. Base isolation technology is the most widely used vibration control technology in engineering, and it is a new technology that appeared in the 1960s. Base isolation can be divided into interlayer rubber pad isolation devices, lead rubber bearings, ball (or roller) isolation, suspension base isolation, swing bearing isolation, sliding bearing isolation, etc., among which rubber Bearing isolation technology is the most widely used and most mature type of isolation technology. It has the characteristics of clear shock absorption mechanism, remarkable shock absorption effect, convenient construction and installation, and many projects have been used in actual earthquakes. Standing the test, it is being valued by mo...

AI Technical Summary

Problems solved by technology

[0008] However, the current rubber shock-isolating bearings are designed individually for specific structures or equipment, without taking into account the diversity of types and structures of structures or equipment, especially for special The different rigidity of industrial equipment has special requirements for seismic isolation bearings, so it is necessary to propose a low-cost, mass-produced seismic isolation system that can adjust the stiffness for different structures or equipment

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