Maintenance and replacement method for hydraulic disc spring operating mechanism of 500kV circuit breaker

Abstract

The invention discloses a maintenance and replacement method for a hydraulic disc spring operating mechanism of a 500kV circuit breaker,and belongs to the technical field of power transformation equipment maintenance and replacement. The maintenance and replacement method comprises a hydraulic trolley, wherein a supporting block, a supporting plate and an overhauling and replacing platform are placed on the hydraulic trolley and pushed to the position below the hydraulic disc spring operating mechanism; the hydraulic cart rises until a disc spring part of the hydraulic disc spring operating mechanism is in contact with a supporting module at the upper part of the maintenance and replacement platform; the telescopic module extends to stably support an energy storage part of the hydraulic disc spring operating mechanism; fixing bolts are dismounted, and the hydraulic disc spring operating mechanism is rotated and dismounted; the hydraulic cart is pushed out of an overhauling station, the hydraulic disc spring operating mechanism is fixed to the overhauling and replacing platform through a packing belt, a plurality of supporting legs on the overhauling and replacing platform are tightened downwards to make contact with a supporting plate, and the overhauling and replacing platform is locked; and the supporting plate, the maintenance and replacement platform and the hydraulic disc spring operating mechanism are integrally transferred and conveyed by using another hydraulic cart or forklift. Manpower and material resources are saved, and the maintenance and replacement efficiency is high.

Description

technical field [0001] The invention relates to the technical field of maintenance and replacement of substation equipment, in particular to a method for maintenance and replacement of a hydraulic disc spring operating mechanism of a 500kV circuit breaker. Background technique [0002] With the development of electric power in our country, substations are indispensable, and hydraulic disc spring circuit breaker equipment is widely used. When operating and maintaining a large number of hydraulic disc spring mechanism circuit breakers, frequent suppression of the mechanism is a common problem in such mechanisms. Defects seriously affect the normal operation of the circuit breaker. When there is a fault inside the mechanism and the mechanism needs to be replaced, because the mechanism is heavy and the working space is small, it needs to be replaced manually using a bracelet hoist, but this method consumes a lot of manpower and material resources and takes a long time. And low s...

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Problems solved by technology

[0003] Disadvantages of the existing method for replacing the hydraulic disc spring operating mechanism of 500kV circuit breaker: the current disassembly method needs to determine and make the binding point of the chain hoist according to the characteristics of the field equipment, because the circuit breaker manufacturers equipped with the hydraulic spring operating mechanism on site are different , construction forms, etc. are different, and the lengths of slings required to make binding points are different.

However, this utility model still adopts the suspension method to replace the hydraulic disc spring mechanism, and there are still problems of laborious and low efficiency for the heavy 500kV circuit breaker hydraulic disc spring operating mechanism

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