Universal linear tower ground wire lifting device

Abstract

General-purpose linear tower ground wire lifting device, including the lower tightening lead screw (5), the upper tightening lead screw (4) with internal and external reverse threads fitted on the upper part of the lower tightening lead screw through thread fitting, The load-bearing ten-piece (3) and its pressure plate (8) on the tightening thread screw, the cantilever-type aluminum alloy base (1) set on the joints at both ends of the load-bearing ten-piece through the end lug plate, The operating handle (10) set on the upper end of the tightening thread screw, the integrated U-shaped notch connector (6) processed on the lower end of the lower tightening thread screw, and the locking bolt (7) fitted on the connector; The cantilever aluminum alloy base is an integral arched back structure, with a U-shaped groove (1a) with a notch facing downwards on the arched back, and a groove (1b) that runs through the upper and lower ends of the base. The two side plates serve as the terminal lugs. The present invention is easy to operate in the lifting operation of the overhead ground wire of the straight tower of the transmission line, can be quickly lifted and reset, is also applicable to all voltage level transmission lines, and is light, labor-saving, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of hoisting tools for overhead ground wires of straight towers of power transmission lines, in particular to a replacement tool for lifting ground wires to disengage them from fittings strings, thereby realizing a series of operations such as replacing ground wire insulators, fittings, and dropping wires. Background technique [0002] In the prior art, when replacing the insulators and fittings of the ground wire of the straight tower, and the operation of dropping the wire, there are the steel sleeve twisting lifting method, the gourd chain lifting method, and the special fixture method. [0003] The steel sleeve twisting lifting method is also the most primitive method. It uses the steel sleeve as a force-bearing tool for lifting the ground wire, that is, the steel sleeve is wrapped around the ground wire and the hanging plate, and then a wooden rod is used to pass through the steel sleeve. The steel sleev...

AI Technical Summary

Problems solved by technology

The disadvantage is: the operator must have a lot of strength, and it can only be used for ground lines with low downforce. When the vertical span exceeds 400m, it cannot be used.

The disadvantage is that the 3T hoist weighs 21kg, plus the steel sleeve, lifting rope and pulley, etc., the total weight of the tool is 40kg, which is very unfavorable for field work and high-altitude work

The disadvantage is that each fixture can only be

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