Clamp for charged replacement of tangent tower insulators

Abstract

The invention discloses a clamp for charged replacement of tangent tower insulators. The clamp comprises a cross arm side clamp, the cross arm side clamp comprises a positioning steering shaft, a clamp cross arm mold block and an insulting pull plate, and a universal screw rod is arranged in the positioning steering shaft. The clamp is structurally characterized in that the universal screw rod is provided with an axle hole which is distributed along the axial direction thereof, the axle hole is a threaded hole, the clamp further comprises a connecting screw rod, the connecting screw rod includes a small end which can extend into the axle hole of the universal screw rod and a large end which has the same outer diameter and threads as the universal screw rod, and the small end of the connecting screw rod is provided with threads matched with the axle hole. The clamp for charged replacement of tangent tower insulators can be prevented from being unable to work due to length deficiency caused by different lengths of new and old insulators, and the screw rod can be connected without the need for rework once the new and old insulators are not matched so that the screw rod has enough margin to complete installation of the new insulator.

Description

technical field [0001] The invention relates to a tool for replacing live insulators in a straight tower shape, in particular to a jig for replacing live insulators with straight towers. [0002] Background technique [0003] In the current 110kV-220kV and above transmission lines, due to the variety of tower shapes, there are many types of insulators and fittings with different lengths. When replacing the straight tower insulator string, it is inevitable that the length of the original insulator is different, which also brings some difficult problems to the live operation of the line: if the length of the new insulator is too short, we can also take measures to collect more wires Rods are used to make up for the problems caused by the different lengths of the new and old insulators: if the insulator is too long, all the weight of the wire is transferred to the insulating pull plate and the screw rod of the fixture. When the length of the new insulator is gre...

AI Technical Summary

Problems solved by technology

When replacing the straight tower insulator string, it is inevitable that the length of the original insulator is different, which also brings some difficult problems to the live operation of the line: if the length of the new insulator is too short, we can also take measures to collect more wires Rods are used to make up for the problems caused by the different lengths of the new and old insulators: if the insulator is too long, all the weight of the wire is transferred to the insulating pull plate and the screw rod of the fixture. When the length of the new insulator is greater than the original insulator At this time, we have to rework and restore the original insulator to adjust the length of the pull plate

This not only greatly increases the time that the wire stays on the insulating pull plate, but also brings physical exertion to the operator due to rework.

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