Universal lifting device for ground wire of power transmission line

Abstract

The invention relates to a universal lifting device for a ground wire of a power transmission line. The universal lifting device comprises a fixing frame and a lifting mechanism, wherein the fixing frame comprises a first mounting portion and a second mounting portion; a fastening bolt is arranged on the fixing frame; the lifting mechanism comprises a base, a steel wire sleeve and a steel wire rope; a sealing bolt is arranged on the base; one end of the steel wire rope bypasses the steel wire sleeve and then is fixedly connected to the sealing bolt; a driving piece connected with a rotating shaft is arranged on the base; and a gear transmission assembly is arranged between the driving piece and the rotating shaft. The universal lifting device has the advantages that the steel wire sleeve is rotationally connected to the base through the rotating shaft, so that the steel wire rope can be tightened only by controlling the rotation of the rotating shaft, and the ground wire can be quickly lifted; the whole structure is simple, and the tightening effect is good; and the rotating direction of the rotating shaft is controlled through the gear transmission assembly, so that the rotating shaft can only rotate in one direction when the steel wire rope is lifted, rotation of the rotating shaft in the tightening process of the steel wire rope is avoided, the tightening quality is improved, and the stability of the ground wire during lifting is guaranteed.

Description

technical field [0001] The invention relates to a universal lifting device for the ground wire of a power transmission line. Background technique [0002] The maintenance of transmission lines will involve the replacement of ground wire fittings, and the ground wire needs to be lifted before replacing the fittings. At present, the commonly used lifting devices for ground wires mainly include: chain hoist, double hook wire tensioner, etc. Other accessories of the lifting device include wire sleeves, steering blocks, U-shaped rings, etc. Due to the limited lifting space above the ground wire, the "reverse tightening wire" method must be used. Use tools such as steel wire sleeves, steering blocks, U-shaped rings, etc. to set multiple steering hanging points on the pole tower, set a wire hook on the ground line, and connect the wire rope. After the hoist is tightened, the ground wire is lifted through the transmission of force. There are many tools and appliances used on site,...

AI Technical Summary

Problems solved by technology

Use tools such as steel wire sleeves, steering blocks, U-shaped rings, etc. to set multiple steering hanging points on the pole tower, set a wire hook on the ground line, and connect the wire rope. After the hoist is tightened, the ground wire is lifted through the transmission of force. There are many tools and appliances used on site, and it is inconvenient to carry and transfer; it is necessary to estimate the approximate length of the wire rope according to the site in advance, and the carrying tools are uncertain and poor in versatility; there is a lack of highly professional tools. Lifting tools; the site layout is complicated, there are many procedures, and personnel with certain work experience are required to complete; the operation is complicated, time-consuming, and work efficiency is low

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