Tool capable of replacing 500KV straight-line single-connection double-string horizontal insulator

Abstract

The invention relates to a tool capable of replacing 500KV straight-line single-connection double-string horizontal insulator. The tool comprises a double-connection turning board card, adjustable insulation pulling rods, and four-wire hooks which constitute a bearing mechanism. The tool is characterized in that the double-connection turning board card is formed by rotatably connecting a card body and a turning board by a rotating shaft to form a whole body, and after the card body and the turning board are integrated, the matched corresponding parts of the card body and the turning board form a card clamp; hanging boards are connected to both ends of the double-connection turning board card by screws, and a pin hole is formed in the middle of the double-connection turning board card; the lower ends of the hanging boards are in threaded connection with the insulation pulling rods; the lower ends of the insulation pulling rods are in threaded connection with screws of the four-wire hooks; a clamping hook for holding wires is arranged at the upper part of each of both ends of each four-wire hook main body, a wire hook is fixed at the lower end of each of both ends of each four-wire hook main body, a screw hole is formed in the middle of each four-wire hook main body and a worm and gear is fixedly mounted below each four-wire hook main body. By virtue of the tool, insulator strings with different models and different lengths can be replaced; compared with a current tool, the tool has the advantages that the number of work tools is effectively reduced, the labor intensity is reduced, the work efficiency is improved, and the replacement of broken or zero-resistance insulators can be replaced more safely, conveniently and quickly and with a higher labor-saving effect.

Description

technical field [0001] The invention relates to a tool for replacing 500KV linear single-series double-series horizontal insulators. Background technique [0002] For 500kV power lines of linear single-series double-series (horizontal line arrangement) type insulator strings, if according to the traditional working form, the method of vertically lifting the conductors with a cross arm clamp to loosen the insulator strings is used to replace the single-series insulators, the two-connection plate ( L-4255 and L-6055) will deflect after one of the strings of insulators disengages, preventing the new insulator from being seated. At present, there are no suitable working tools and methods, and it is necessary to develop a set of combined tools and working methods suitable for the assembly of such hardware, so as to implement the replacement of damaged or zero-value insulators more safely, labor-savingly and quickly. SUMMARY OF THE INVENTION [0003] The purpose of the present ...

AI Technical Summary

Problems solved by technology

[0002] For the straight-line single-connected double-string (horizontal line arrangement) type insulator strings in the 500kV power line, if the traditional working form is used, the method of vertically lifting the wires with the cross-arm fixture to loosen the insulator strings is used to replace the single-string insulators. L-4255 and L-6055) would deflect after one of the strings of insulators came loose, preventing the new insulators from fitting

At present, there are no suitable working tools and methods. It is necessary to develop a set of combined tools and working methods suitable for this type of hardware assembly, so as to replace damaged or zero-value insulators more safely, labor-saving and quickly.

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