Improved power isolation knife live maintenance tool

Abstract

The invention belongs to the technical field of power equipment maintenance and particularly relates to an improved power isolation knife live maintenance tool. The tool comprises an insulating support rod, an insulating operation rod, a driving motor, a transmission shaft, a polishing wheel, a lifting component, a base, and an insulating support. The rod is fixed as a supporting body on the base,the insulating operating rod is connected to the insulating support rod through the lifting member, the polishing wheel is installed at one end of the insulating operating rod, and the driving motoris arranged at the other end of the insulating operating rod. The polishing wheel is connected to the driving motor through the transmission shaft. The tool is also provided with a dustproof plate, aninsulating auxiliary rod and a universal joint. The dustproof plate is installed at a joint of the insulating operating rod and the polishing wheel, the universal joint is arranged on the dustproof plate, and the insulating auxiliary rod is connected to the insulating operating rod through the universal joint. According to the maintenance tool, grinding force and position can be adjusted when theknife contact grinding opeation is carried out at a high altitude, at the same time, grinding dust is prevented from falling onto an operator, and an ideal grinding effect is obtained by using the maintenance tool.

Description

technical field [0001] The invention belongs to the technical field of power equipment maintenance, and in particular relates to an improved live maintenance tool for an electric isolation knife switch. Background technique [0002] The normal operation of high-voltage isolation switchgear in substations depends to a large extent on the contact resistance of the isolation switch contacts (generally required to be around 100 micro-ohms). With the increase of equipment operation time, it is affected by the surrounding environment, such as industrial waste gas emission pollution, especially chemical waste gas emission pollution, saline-alkali pollution and corrosion, long-term oxidation and corrosion, etc., making the conductive contact surface of the isolating switch contact gradually corrode, and the surface forms A layer of oxide layer, so that the contact resistance of the contact increases, the heat of the contact increases under normal operating conditions, and the temper...

AI Technical Summary

Problems solved by technology

At present, live grinding and maintenance tools are used. The operator is on the ground and operates the grinding wheel to grind the contact of the knife switch through the insulating operating rod. Because the distance from the grinding object at a high place is far away and the insulating operating rod is too long, it is difficult to adjust the grinding force and position during the grinding operation. , making it difficult for the current grinding tools to achieve the ideal grinding effect

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