Steel tube tower linear double-I-string clamp and operation method thereof

Abstract

The invention provides a linear double-I-string clamp for a steel tube tower. The linear double-I-string clamp comprises an upper clamping seat, a connecting screw, a hydraulic screw rod, cross arm angle steel, an upper connecting plate clamp, a connecting screw, an insulating pull rod, a double-end mechanical screw rod, a lower connecting plate clamp, a cross-shaped connecting plate, a connecting screw, a gasket and a nut. According to the invention, a large-tonnage load is firstly decomposed into two small loads through the upper connection board card so as to adapt to the existing insulation pull rod, and the redevelopment and purchase of a large-tonnage insulation pull rod and a mechanical screw rod are avoided; and small loads are combined through the lower link plate clamp and then are connected with the line hardware fitting cross link plate, so that the problem that a wire side clamp has no connection point in a conventional method is solved, and the technical problem that a large-tonnage linear double-I string cannot be replaced in an electrified manner due to the special structure of a steel tube tower of an extra-high voltage line is also solved.

Description

technical field [0001] The invention relates to the technical field of maintenance of UHV transmission lines, and more specifically, to a steel pipe tower linear double I-series fixture. Background technique [0002] The safe and stable operation of UHV transmission lines is related to the safety of the power grid. When the power grid is in normal operation, it is inevitable to have low-value and zero-value insulators. The replacement of low-value and zero-value insulators is an important part of the safety maintenance work of the unit, and the insulator replacement fixtures and working methods are particularly important. [0003] At present, for the straight I strings of UHV transmission lines, the main method is to remove the entire string of a single string, hoist it to the ground, replace the zero-value and low-value insulators, and then reset the insulator strings. This method is suitable for most angle steel towers, but not for steel pipe towers, resulting in the tech...

AI Technical Summary

Problems solved by technology

This method is suitable for most angle steel towers, but not for steel pipe towers, resulting in the technical problem that the steel pipe towers cannot replace the large-tonnage straight double I strings with electricity

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