Electric winch for power transmission line

Abstract

The invention discloses an electric winch for a power transmission line, belongs to the field of power grids and solves the technical problems in the prior art that during maintenance operation of a power transmission line, a hoisting tool is difficult to mount and low in security. The electric winch for the power transmission line comprises a winching machine and a fixture used for fixing the winching machine on a crossarm of a power transmission line, wherein connection holes are formed in the winching machine; the fixture comprises a cross rod and chucks; the cross rod is connected with the connection holes; a mounting hole connected with the cross rod in a sliding manner is formed in each of the chucks; a bent clamping hook is arranged at the bottom of each of the chucks; the clamping hooks correspond to angle iron of the crossarm; locknuts are in threaded connection with the cross rod and compress the chucks on the angle iron. The electric winch is applied to the power field, particularly to maintenance operation of iron tower lines.

Description

【Technical Field】 [0001] The invention relates to an electric winch for power transmission lines. 【Background technique】 [0002] Live work is widely used in high-voltage transmission lines and is one of the important maintenance methods to ensure the safe operation of transmission lines. Equipotential operators use the swing-in method to enter the live wires for equipotential maintenance. In the prior art, the construction unit generally controls the lifting of personnel through a roller set. The roller set includes a roller connected to a cross arm. The roller is connected to a hoisting rope. One end of the hoisting rope lifts the potential operator, and the other end of the hoisting rope Tightened by ground operators, the tool has the following problems when used: [0003] (1) Long rope length required: UHV transmission lines are taller, with an average height of 70 meters or more; considering the long distance between the cross arm and the wire hanging point, the rope length ...

AI Technical Summary

Problems solved by technology

[0004] (2) High labor intensity: Due to the long length of the sling, heavy weight, and large handling volume, and UHV transmission lines are generally located in high mountains and large ridges, the operating tools must be manually carried, resulting in high labor intensity for operators;

[0005] (3) There is no locking safety device for the roller group: in the process of use, it is all operated by the ground operator with both hands. If both hands fail to grasp the sling rope and miss it, it will cause an accident, so the safety is relatively low.

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