Special device for dismantling the clamping spring of the isolating switch ejector rod

Abstract

The invention belongs to the field of disassembling and overhauling devices for equipment in transformer stations, and relates to a disassembling tool for GW17 type disconnecting switch with a 220V voltage grade, in particular to a device special for disassembling a disconnecting switch ejector rod clamping spring. The device special for disassembling the disconnecting switch ejector rod clamping spring comprises a base (11), a supporting column (1) is arranged at one end of the base (11), a clamping spring ejector rod seat stand (10) is arranged at the other end of the base (11), a pressure arm fixing sleeve (3) is arranged at the upper end of the supporting column (1), a connecting wrench (4) is arranged on one side of the pressure arm fixing sleeve, the connecting wrench is connected with a pressure arm (6) through a movable shaft (5), a pressure arm handle (9) is arranged at the front end of the pressure arm, a pair of snap ring connecting plates (7) are hung and connected on the pressure arm, and snap rings (8) are connected to the lower portions of the snap ring connecting plates (7). The device special for disassembling the disconnecting switch ejector rod clamping spring can fully solve the problem that the GW17 type disconnecting switch spring is inconvenient to disassemble and the like, overhauling personnel can be prevented from using brute force to cause decline of equipment precision or even damage equipment, the safe reliability of the working of the personnel can be improved, working intensity can be lowered, working time can be saved, and efficiency can be improved.

Description

technical field [0001] The invention relates to a dismantling tool for a GW17 type isolating switch with a voltage level of 220V, in particular to a special device for dismantling a clamping spring of a push rod of a isolating switch, which belongs to the field of equipment dismantling and maintenance devices in substations. Background technique [0002] During the normal operation of the isolating switch of the 220kV substation, the staff needs to regularly check and maintain the equipment. Among them, the inside of the conductive arm of the GW17 type disconnector is forced by the ejector rod and the spring to drive the conductive arm to expand and contract, so that the dynamic and static contacts are closed or separated. Due to the requirements of the maintenance process, the staff must disassemble and repair the conductive arm and the spring of the ejector rod. According to the maintenance records of the power system, due to the mechanical structure of the conductive arm ...

AI Technical Summary

Problems solved by technology

Due to the requirements of the maintenance process, the staff must disassemble and repair the conductive arm and the spring of the ejector rod. According to the maintenance records of the power system, due to the mechanical structure of the conductive arm of the GW17 type isolation switch and the strength of the spring, there are maintenance personnel who use brute force to cause equipment accuracy to drop. Even the possibility of damage, in addition, there may be hidden dangers of injury after the spring is stressed. In order to solve this problem, a safe, reliable, practical and flexible professional tool is urgently needed.

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