A special fixture for the lifting device of live working with multi-split conductors

Abstract

The invention discloses a special clamp for a multiple divided conductor hot-line work lifting device, and relates to a method or equipment used for mounting, maintaining, repairing or detaching cables or electric wires. The special clamp is composed of a fixing plate and two connecting plates, wherein the upper ends of the connecting plates are symmetrically and vertically welded to the bottom face of the fixing plate, and the connecting plates and the transversely arranged fixing plate are arranged to form a TT-shaped structure; the upper end of a wire clamp connecting plate is clamped between the two paratactic connecting plates; hinged-connection shaft holes penetrating through the two connecting plates and the wire clamp connecting plate are formed; the special clamp and the wire clamp connecting plate form a hinged-connection structure through bolts or hinge pins, wherein the bolts or the hinge pins penetrate through the hinged-connection shaft holes; the lead screw stretch-out end of a lead screw nut mechanism penetrates through connecting through holes in the two ends of the fixing plate to stretch into space formed between the special clamp and a connecting part of the wire clamp connecting plate in am embedded mode, and air gap meeting hot-line work operation requirements is reserved between metal parts of the lead screw nut mechanism and a cross arm of a transmission power. The special clamp for the multiple divided conductor hot-line work lifting device is simple in structural form, convenient to use and capable of meeting maintenance hot-line work requirements of extra high voltage transmission lines in combination with an insulating tool.

Description

technical field [0001] The present invention relates to a method or equipment specially used for installing, maintaining, repairing or dismantling cables or wires, and in particular to a special fixture for a multi-split wire live working hoisting device for overhead line tower poles. Background technique [0002] Multi-split wire is a wire erection method adopted by EHV transmission lines to suppress corona discharge and reduce line reactance. The multi-split wire is composed of several sub-wires with smaller diameters, and each sub-wire is arranged at a certain distance and arranged in a symmetrical polygon, and arranged on the vertices of the regular polygon. At present, UHV AC and DC lines above 500KV usually use four-split, six-split or even eight-split conductors. In the maintenance and repair construction of multi-split conductor control lines, it is often necessary to lift a group of conductors that make up the multi-split conductor at the same time, so as to replac...

AI Technical Summary

Problems solved by technology

However, the utility model multi-split wire live working lifting device needs to be used in conjunction with the six-split wire hook, and its connection and operation process is relatively complicated, and it is still inconvenient to operate for overhead lines.

Images