High twig shears applied to charged high-voltage line

Abstract

The invention discloses high twig shears applied to a charged high-voltage line. The high twig shears comprise a tool rest, a static blade and a moving blade, the static blade is fixed on the tool rest, and the moving blade forms a hook-shaped shear mouth facing downwards; the tool rest is provided with a power transmission mechanism, a worm is fixed on an output shaft of the power transmission mechanism, a worm gear structure matched with the worm is arranged on the back of the moving blade, and insulating stay cords are connected to a big rotating wheel and a small rotating wheel respectively; a steering block is hinged to the lower portion of the tool rest through a draw-in bolt to form a tool rest steering mechanism; an insulating rod is connected to the lower portion of the steering block. According to the high twig shears, the problem that traditional high twig hears cannot be used on the condition that a high voltage line is charged is solved, operation can be conducted without power interruption, and the reliability of mains supply is guaranteed; meanwhile, the trimming range is widened, and the labor efficiency is improved.

Description

technical field [0001] The invention relates to the field of high-branch shears, in particular to a special high-branch shear for live high-voltage lines. Background technique [0002] In the channel management of overhead transmission lines, the contradiction between wires and trees has always been a prominent and serious problem. On the one hand, with the rapid development of urban construction, greening construction such as new roads and parks has gradually increased, and the government's greening department has implemented " The Regulations on the Protection of Electric Power Facilities is not well understood, and large-scale tree planting often occurs under transmission lines, resulting in the distance between some line conductors and trees not meeting the specified requirements; on the other hand, overhead lines span a wide range, and there are many and mixed trees in the passage protection area , coupled with the enhanced awareness of environmental protection and econ...

AI Technical Summary

Problems solved by technology

The commonly used high-branch shears are purchased in the market, and the operating unit found the following defects in the process of pruning trees with the existing ordinary high-branch shears in the market: 1. Insulation problems, traditional high-branch shears are not suitable for trees near high-voltage lines Therefore, the trees that do not meet the safety distance in the high-voltage line protection area cannot be trimmed during use, which limits the scope of use; 2. The direction of the blade head of the traditional high-branch shears is fixed, and the horizontal branch pruning effect Good, but the pruning of branches in other directions is difficult, time-consuming and easy to break the cutter head; 3. The traditional high-branch shears use the pulley block labor-saving device, which reduces the labor intensity of the operator to a certain extent, but in the process of pruning , it is prone to the phenomenon that the cutter head is stuck, and cannot continue to operate, which virtually increases the labor time and labor intensity; 4. The size of the traditional high-branch scissors is fixed, and it cannot be adjusted according to the diameter of the tree on site. The field pruning test shows that for Trees with a diameter larger than 15mm have poor pruning effect

Due to the above defects, the high-branch shears are time-consuming and labor-intensive in use, which affects work efficiency.

[0003] Due to the existence of many defects in this high-branch shears, the pruning work cannot be carried out well. Therefore, there is an urgent need to develop a high-branch shears suitable for electric power operation departments to deal with dangerous trees.

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