Power grid high voltage outdoor isolating switch connecting rod cylindrical pin removal portable tool

Abstract

The invention discloses a portable detaching tool for a round pin of a connection rod of an outdoor disconnecting switch for electric power and electric network high voltage. The tool comprises a positioning body (1), an oil tank (2), an energy supply oil cylinder assembly (3), a connecting device (4), the connection rod (5), an output oil cylinder assembly (6), a loop oil pipe (7), a supporting piece (8) and a hydraulic handle (9). The tool is simple in structure, achieves detaching of the round pin through cooperation of multiple oil cylinders, and is compact in structure and low in mass as a whole, and the online operation is convenient and safe; the tool can detach shaft pins of different diameters, thereby being high in applicability and meeting different construction requirements; the tool is stable in application, the round pin is detached through pressure of the oil cylinders, deformation vibration of surrounding parts is avoided, and the subsequent application of the disconnecting switch is not affected; a shaft pin recovery space is provided, that is, after being detached, the round pin is directly recovered by the tool instead of falling off randomly; and the tool can meet the requirement for detaching under different situations.

Description

technical field [0001] The invention belongs to the field of power grid construction devices, and in particular relates to a portable tool for dismantling a connecting rod cylindrical pin of a high-voltage outdoor isolating switch of a power grid. Background technique [0002] The isolating switch, also known as the switch knife, is a kind of high-voltage switchgear. Its contacts are exposed in the air and there is no special arc extinguishing device, so it cannot directly connect or cut off the load current and short-circuit current, but it has obvious The disconnection point can be used as the isolation between maintenance equipment and live equipment to ensure the safety of maintenance personnel. According to different installation locations, it can be divided into two types: outdoor type and indoor type. [0003] The main models of outdoor isolating switches are GW5-35 and GW5-110, which are mainly composed of five parts: supporting porcelain bottle, conductive device, o...

AI Technical Summary

Problems solved by technology

But in actual use, there are the following disadvantages: the overall size and mass are large, the structure is not compact, and it is very inconvenient for the construction personnel to operate online; Difficult axial positioning brings construction difficulties to the construction workers and prolongs the operation time; the dismantled shaft pins fall directly from high altitude, there is no recovery part, and the falling objects near the line are likely to cause safety hazards, seriously violating safety Construction requirements; there is no support for the board that cooperates with the shaft pin, and the force will deform the board during disassembly, which will affect the use of the isolating switch

[0005] At present, the common design similar to the above-mentioned isolating switch connecting rod cylindrical pin removal tool is also heavy overall, which is inconvenient for online operation and brings a large workload to the operator. Once the operation is unstable, it is easy to drop and smash Bad following equipment and other defects

At the same time, due to the shortcomings of its structure, it is difficult to locate the screw and the shaft pin accurately, and often requires multiple operations to align

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