A robot for live detection and cleaning of insulators for EHV and UHV lines

Abstract

The invention discloses an EHV and UHV transmission line insulator live-line detection / cleaning integrated robot which comprises a second mechanical arm whose upper part outside is equipped with a hairbrush ring and first and third mechanical arms at two sides of the second mechanical arm. The three mechanical arms share a vertical center surface and are supported and fixed through a fixed base. The first and third mechanical arms can autonomously extend and retract left and right, and the second mechanical arm can move left and right with the fixed seat. The second mechanical arm and any one of the first and third mechanical arms or the three mechanical arms can grasp an insulation steel cap simultaneously to form one or two loops to detect the insulation resistors in the corresponding loops. The insulation steel cap can be holded or loosened through the up and down movements of the three mechanical arms, and the left and right movements of the fixed seat and the left and right movements of the whole robot can be realized through the left and right extension and retraction movements of the first and third mechanical arms so as to detect and clean insulators at different positions.

Description

technical field [0001] The invention relates to an ultra-high voltage and ultra-high voltage transmission line, in particular to a robot for live detection and cleaning of insulators for ultra-high voltage and ultra-high voltage lines. Background technique [0002] During the long-term operation of EHV / UHV transmission lines, line insulators are not only affected by environmental factors such as pollution, bird damage, ice and snow, high temperature, but also electrically subjected to strong electric fields, lightning impulse currents, and power frequency arc currents. The resistance of the insulator is reduced or even deteriorated. When the number of low-value or zero-value insulators in the line exceeds the specified number, flashover accidents will easily occur, which will affect the safe and stable operation of the line and even the power grid. At the same time, due to the low probability of power outage maintenance of EH / UHV transmission lines, it is of great significa...

AI Technical Summary

Problems solved by technology

The former requires manual operation of the cleaning rod, which is labor-intensive, with low applicable voltage levels and low cleaning heights; the latter relies on the movement of the forklift to adjust the cleaning direction and distance, which is inconvenient to operate and relatively low in automation

[0013] Live machinery drives chemical agent cleaning. First, chemical agents are used to wash the insulator dirt, and then the mechanical motor at the head of the operating rod is used to clean the insulators. However, the cleaning machine held by it is heavy, which makes the operation inflexible and prone to cleaning dead angles. is not part of a suspension insulator suspended vertically to the ground, this sweeper will be powerless

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