Transmission line iron tower angle steel tower material replacement protection device and replacement method

Abstract

The invention discloses an electric transmission iron tower angle steel tower material replacement protecting device and a replacement method. The electric transmission iron tower angle steel tower material replacement protecting device comprises a main load-bearing beam (1), a plurality moving parts (2) slidably arranged on the main load-bearing beam (1), positioning devices (11) for positioningthe moving parts (2) and the main load-bearing beam (1), and clamping tools for being fixed to angle steel tower materials (4), wherein the clamping tools are arranged on the moving parts (2). According to the electric transmission iron tower angle steel tower material replacement protecting device, in the detaching process of the to-be-replaced angle steel tower materials, due to the supporting function of the main load-bearing beam, supporting force is enabled to exist at the correspondingly positions (the located positions of the to-be-replaced angle steel tower materials) of an electric transmission iron tower, and the correspondingly positions of the electric transmission iron tower are under a protected condition; and the replacement protecting device is used for bearing the originalstress-strain of angle steel when the angle steel is replaced, the bearing stress of the iron tower is enabled to maintain stable, tower falling accidents are prevented in the replacement operation process of the angle steel, and the potential safety hazards of the electric transmission iron tower are reduced.

Description

technical field [0001] The invention relates to the technical field of electric power tools, in particular to a protection device and a replacement method for the replacement and replacement of an iron tower angle steel tower material of a power transmission line. Background technique [0002] High-voltage overhead transmission lines mostly use angle steel tower structures. In recent years, the power grid has developed rapidly, and a large number of transmission lines have been constructed, and the scale has increased year by year. With the increase in the operation time of transmission line towers, the angle steel will be affected by environmental changes and corrosion, and the angle steel will be corroded and its strength will be reduced. In other cases, external force damage and other reasons lead to deformation of the angle iron, which affects the safe operation of the line. If part of the angle steel does not meet the force requirements, on the one hand, it will waste a...

AI Technical Summary

Problems solved by technology

After the angle steel is removed, the angle steel is in the missing stage before the new angle steel is installed, the iron tower is in a state of stress change without protection, and the overall stress of the tower changes, causing some tower materials to be stressed beyond the design range, and there is a risk of tower material deformation and tower collapse accidents

Especially when replacing part of the tower material of the iron tower cross arm, the overlapping structure of the iron tower cross arm angle steel is complicated, the force is complicated, and the change of the force after the rod is removed is complicated. The safety hazard of replacing the angle steel rod without protective measures is very serious

Images