F-shaped wire lifting device snapped and fixed on the cross arm and its usage method

Abstract

The invention discloses an F-shaped wire lifting device clamped and fixed to a cross arm and an application method, and belongs to the technical field of displacement of an insulator of a power transmission line. The F-shaped wire lifting device includes a clamping device, and the clamping device includes a clamping groove, a support pillar located at one side of the clamping groove and used for abutting against a transverse plane main material bottom surface and a wire lifting platform located at the other side of the clamping groove. The wire lifting device can be rapidly mounted on a cross arm, after mounting, the support pillar abuts against a longitudinal plane main material and thus downward tensile force to which the wire lifting platform is subjected can be counteracted in a wire lifting process, in the process of wire lifting operation, force to which the support pillar is subjected is extrusion force, so that a joint of the support pillar is not easy to break, and relatively high safety is achieved in wire lifting operation.

Description

technical field [0001] The invention relates to the technical field of insulator replacement for power transmission lines, in particular to an F-shaped wire lifting device clamped and fixed on a cross arm and a use method thereof. Background technique [0002] When the tower end of the straight line tower of the high-voltage transmission line is used for the replacement of insulators and the replacement or maintenance of the wire end fittings, it is necessary to use the wire lifting device to lift the wire. The traditional wire lifting device, such as the Chinese utility model patent (notification number CN203166403U), is named as : Reinforced wire lifting jig, inserted into the cross arm from the upper end through the card slot for clamping, one end of the card slot is fixed with the cross arm by strengthening the diagonal brace, and the other end of the card slot is the wire lifting platform, and the screw is used on the wire lifting platform. The operation of lifting the ...

AI Technical Summary

Problems solved by technology

[0002] When the tower end of the straight line tower of the high-voltage transmission line is used for the replacement of insulators and the replacement or maintenance of the wire end fittings, it is necessary to use the wire lifting device to lift the wire. The traditional wire lifting device, such as the Chinese utility model patent (notification number CN203166403U), is named as : Reinforced wire lifting jig, inserted into the cross arm from the upper end through the card slot for clamping, one end of the card slot is fixed with the cross arm by strengthening the diagonal brace, and the other end of the card slot is the wire lifting platform, and the screw is used on the wire lifting platform. The operation of lifting the wire; in this method, the reinforced diagonal brace is welded on the cross arm, and its angle cannot be changed during the operation, and it is troublesome to disassemble after the wire lifting operation is completed. At the same time, the card slot is inserted into the cross arm from the upper end. In the early line lifting operation, the force received by the reinforced diagonal brace is a tensile force, which makes the connection of the reinforced diagonal brace easier to be pulled apart, which poses a safety hazard

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