Assembling and disassembling tool for switching-on spring of vacuum circuit breaker

Abstract

The invention discloses an assembling and disassembling tool for a switching-on spring of a vacuum circuit breaker. The assembling and disassembling tool comprises a horizontal rod; a U-shaped fork is arranged at the front end of the horizontal rod; an operation rod is hinged to the horizontal rod and provided with a supporting block. A groove is formed in the operation rod in the axial direction, and the lower end of the supporting block is arranged in the groove and fastened by a bolt. A first insulation sleeve is arranged at the rear end of the horizontal rod, a second insulation sleeve is arranged at the rear end of the operation rod, and a third insulation sleeve is arranged outside the supporting rod. The problem that in the coil replacement process, an outer switching-on spring is difficult to assemble and disassemble is avoided, and working efficiency is improved. By applying the lever mechanics principle and combining with a handcart framework structure, single-person operation can be achieved, and working efficiency is improved by many times. The safety factor is high, and the accidents of spring collapsing and spring sliding can be completely prevented.

Description

technical field [0001] The invention belongs to the field of electric tools, in particular to a tool for disassembling and assembling closing springs of vacuum circuit breakers. Background technique [0002] At present, the VS1 vacuum circuit breaker has a market share of more than 90%. However, with its wide application in the power grid, the phenomenon of its closing coil burning out is also increasing. Since the coil is at the rear of the closing spring, it is necessary to replace the coil. Remove the spring first, and the closing spring has a large elasticity, so the problem of difficult disassembly and assembly of the spring is highlighted. In the previous work, the spring needs to be removed from the upper end of the spring, and the fixing element is easy to fall into the handcart tray, resulting in secondary maintenance. And there is no The best way is to clamp the spring with pliers and leave the hook, which is very easy to cause the spring to collapse, causing equip...

AI Technical Summary

Problems solved by technology

[0002] At present, the VS1 vacuum circuit breaker has a market share of more than 90%. However, with its wide application in the power grid, the phenomenon of its closing coil burning out is also increasing. Since the coil is at the rear of the closing spring, it is necessary to replace the coil. Remove the spring first, and the closing spring has a large elasticity, so the problem of difficult disassembly and assembly of the spring is highlighted. In the previous work, the spring needs to be removed from the upper end of the spring, and the fixing element is easy to fall into the handcart tray, resulting in secondary maintenance. And there is no The best way is to clamp the spring with pliers and leave the hook, which is very easy to cause the spring to collapse, causing equipment and personnel injury

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