A method for lifting and installing multi-layer cross-arms on overhead line poles and special tools thereof

Abstract

The invention discloses a lifting and mounting method for multilayer cross arms on an overhead line pole and special tools for the method. The lifting and mounting method comprises the steps that a fixed pulley is hung and mounted on a cross arm on the top end of the pole, and a hanging rope winds around the fixed pulley; the cross arms are assembled on the ground and are connected with a bolt; the two ends of the two cross arms are connected by using special connecting ropes; the two cross arms are hung and conveyed to a mounting positions of the cross arms through the hanging rope and the special connecting ropes; the two cross arms are pushed into and fixedly clamped on the pole from one side of the pole; and ceramic pieces and hardware fittings are placed in a special storage box, thespecial storage box is hung and conveyed to positions of the cross arms through a down-pulling hanging rope and the special connecting ropes, and the ceramic pieces and the hardware fittings are mounted on the cross arms. The lifting and mounting method for the multilayer cross arms on the overhead line pole and the special tools for the method have the beneficial effects that lifting of the crossarms can be finished without participating of operating workers on the pole, after the cross arms are lifted in place, mounting of the two cross arms can be finished by one worker on the pole, the operating amount of the pole operating workers and labor intensity are reduced and relieved, operating time is saved, and operating efficiency is improved.

Description

technical field [0001] The invention belongs to the field of electric power construction, and in particular relates to a method for lifting and installing multi-layer cross-arms on poles of overhead lines and a special tool thereof. Background technique [0002] At present, when power supply enterprises install multi-layer crossarms on overhead line poles, it is generally used that operators on the poles use ropes to pull up the crossarms vertically and transfer materials, power fittings, tools, etc., grounding wires, insulating gloves, etc. , electroscope pen and other safety tools are carried by the climber. The problems of this operation method are as follows: [0003] 1. When pulling up the cross arm, not only the work intensity is high, but the cross arm is easy to fall, and it is easy to overload the foot buckle, which may damage the foot buckle and cause the safety hazard of the slide bar; [0004] 2. When installing the cross-arm, two people need to cooperate with e...

AI Technical Summary

Problems solved by technology

[0003] 1. When pulling up the cross arm, not only the work intensity is high, but the cross arm is easy to fall, and it is easy to overload the foot buckle, which may damage the foot buckle and cause the safety hazard of the slide bar;

[0004] 2. When installing the cross-arm, two people need to cooperate with each other to clamp the two cross-arms on both sides of the pole for fixing. It is inconvenient for two people to operate on the pole;

[0005] 3. Operators must carry tools on their bodies before climbing the pole tower, before taking measures such as hanging the ground wire and performing electrical inspections, which increases the burden on the pole climbers

[0006] 4. When workers transfer tools and materials to the tower, they can only transfer one tool or a small amount of material at a time. If things go on like this, it will increase the working time and disperse the attention of the workers on the tower. Throw it down and place it casually, there is a safety hazard of falling high-altitude material tools and hurting people

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