Shock isolation device

Abstract

The invention discloses a shock isolation device. The shock isolation device comprises an embedded part which is arranged in the vertical direction and a shock isolation assembly perpendicular to the horizontal direction. The embedded part is composed of a connecting plate and supporting columns with different diameters. The shock isolation assembly is composed of a shock isolation support and a wedge block lead screw mechanism, wherein the shock isolation support and the wedge block lead screw mechanism are arranged in sequence from bottom to top. The shock isolation support is composed of a supporting base and a shock isolation layer. The supporting base is fixedly connected with the embedded part. The wedge block lead screw mechanism comprises edge blocks, lead screws, a base plate and a lifting plate, wherein the base plate and the lifting plate are horizontally arranged. The wedge block lead screw mechanism is installed on the shock isolation support. The shock isolation device is suitable for box type electric equipment, such as a transformer and a paralleling reactor, in a transformer substation; the structural frequency of heavy electric equipment with a low gravity center can be effectively changed through the shock isolation device, so that the structural frequency is far different from the earthquake predominant frequency; meanwhile, the seismic response of the equipment is lowered through damping dissipation energy, and main electric equipment is protected when an earthquake occurs.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a detachable vibration isolation device suitable for box-type electrical equipment such as transformers and shunt reactors in substations. Background technique [0002] The box-type electrical main equipment such as transformers and shunt reactors is relatively heavy, but when encountering a large earthquake, the main electrical equipment may leave its original position, shift or fall off. In addition, the casing on the equipment body is a weak link that is prone to damage, and the root of the porcelain casing often breaks or shifts under the action of a large earthquake. [0003] Seismic isolation is the use of isolation devices to prevent the upward transmission of seismic action and achieve the purpose of reducing structural vibration. It is required that the seismic isolation bearing can not only stably and continuously support the weight of the load-bearing structure, but als...

AI Technical Summary

Problems solved by technology

[0004] However, for equipment such as transformers and shunt reactors that weigh hundreds of tons and are installed on the isolation support, they are generally connected with bolts. After installation, it will bring great difficulty to the disassembly of the isolation support. It is inconvenient to replace the shock absorber

At present, seismic isolation devices are mainly used in building structures, and the problem of disassembly is usually not considered, but considering the operation and maintenance of important electrical main equipment, it is urgent to develop a new type of seismic isolation device that can overcome the above problems

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