Extra-high-voltage electrical equipment shock-insulating supporting seat with adjustable rigidity and damping

Abstract

The invention relates to an extra-high-voltage electrical equipment shock-insulating supporting seat with adjustable rigidity and damping, which comprises three transversely arranged tooth-shaped steel devices and rubber units, wherein the tooth-shaped steel device is transversely arranged between a bracket and equipment, and is constituted by an end plate and vertical steel plate teeth; the end plate is provided with bolt holes around to respectively connect with the bracket and the equipment by bolts; and the vertical steel plate teeth are oppositely buckled in an intersecting manner. Gaps are arranged among the crossly steel plate teeth buckled in an intersecting manner; and the rubber units with variable damping are filled in the tooth gaps. In an application process, the rigidity of the system can be regulated through regulation of the number and the spacing distance of the steel teeth, and the damping of the system can be regulated through regulation of the damping ratio and the thickness of the rubber, so that bidirectional shock insulation can be achieved under the action of earthquake. The supporting seat has good anti-shearing and anti-stressing capability and certain anti-bending capability with advantages such as bidirectionally controllable and adjustable rigidity and damping, wide application range, simple manufacturing process, convenience in transportation and flexibility in application, and is suitable for industrial production on a large scale, regulated and installed according to demands of users, and is suitable for shock resistance, shock absorption and shock insulation of high-voltage and extra-high-voltage electrical equipment.

Description

technical field [0001] The invention relates to a shock-isolation support for ultra-high voltage electrical equipment with adjustable stiffness and damping, which is suitable for anti-shock, shock absorption and isolation of ultra-high voltage and ultra-high voltage electric equipment. Background technique [0002] Earthquakes cause serious damage to various building structures and equipment, and will lead to paralysis of the entire social life. Seismic isolation technology is a technology that has developed rapidly in the field of earthquake resistance in the past 30 years and has been continuously improved. It is currently mainly used in the field of building structures. When the magnitude of the earthquake is large or the "hard resistance" of the structure is difficult to meet the expected seismic requirements due to some reasons, the use of seismic isolation technology to reduce the input seismic energy of the structure can achieve good results. The essential function o...

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Problems solved by technology

Therefore, although the application of seismic isolation and shock absorption technology in civil buildings has been very mature, due to the structural particularity of power equipment, the existing seismic isolation bearings cannot be directly applied to equipment seismic isolation.

In addition, the stiffness and damping of the existing seismic isolation bearings have been determined at the factory, and cannot be adjusted individually according to the actual situation. The adjustment of the system stiffness and damping can only be done by changing the number of bearings and the installation position

For small electrical equipment, it is generally not feasible to adjust the system stiffness and damping by adjusting the number of supports and installation positions, so it is necessary to propose a low-cost, mass-produced, and can be aimed at Different equipment for adjustable stiffness and damping dual-parameter shock-isolation bearings

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