Portable transformer aerial hoisting tool and method

Abstract

The invention discloses a portable transformer aerial hoisting tool. The portable transformer aerial hoisting tool comprises an upper fixed hoop, a lower movable hoop, a supporting rod and a bearing pull rope. The upper fixed hoop and the lower movable hoop are fastened to an electric pole. The rear end of the supporting rod is horizontally and rotationally connected with the lower movable hoop. One end of the bearing pull rope is fixed to the front end of the supporting rod, and the other end of the bearing pull rope is fixedly connected with the upper fixed hoop. The electric pole, the bearing pull rope and the supporting rod are distributed in a triangular structure manner. A hoisting device is hung at the front end of the supporting rod. Compared with the prior art, the portable transformer aerial hoisting tool is high in safety coefficient, convenient to carry and simple in installation without wasting labor, hoisting can be conducted after a line and a rack are installed, operation is light and flexible, the manufacturing cost is low, the needed installing time is short, and the needed manual cost is low. Large-area power outage is reduced, and damage of crops is greatly reduced. The construction difficulty can be lowered, upper-lower-layer operation risks of the same pole and temporary cumbersome box iron erecting safety risks do not exist, and the application range is wide.

Description

technical field [0001] The invention relates to the field of electric power construction, in particular to a portable transformer high-altitude hoisting tool and hoisting method. Background technique [0002] There are usually two ways to hoist transformers. One is to use two-legged or three-legged poles. This method has a great safety risk when assembling and disassembling the poles, and the transformer must be hoisted to a certain height before installation. Bench channel steel, that is to say, erecting channel steel at a high altitude with heavy objects, also has a great safety risk. At the same time, because the grill pole weighs several hundred kilograms, it not only needs to be transported by vehicles, but also needs to be carried by multiple people, which requires more manpower. In addition, there are more crops damaged due to the cumbersomeness of the multi-tool during operation. [0003] The second is to erect a hoop on the poles of the two gantry poles respective...

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Problems solved by technology

[0002] There are usually two ways to hoist transformers. One is to use two-legged or three-legged poles. This method has a great safety risk when assembling and disassembling the poles, and the transformer must be hoisted to a certain height before installation. Bench channel steel, that is to say, erecting channel steel at a high altitude with heavy objects, also has a great safety risk

At the same time, because the grill pole weighs several hundred kilograms, it needs not only vehicle transportation but also multiple people to carry it, and the required manpower will be more

In addition, more crops are damaged due to the cumbersome multi-tool during operation

[0003] The second is to erect a hoop on the poles of the two gantry poles respectively, then place one or two gantry channel steels (3 meters long) on ​​the hoops, and then hang the lifting tool on the trough. On the steel, the lifting tools are generally three-pulley cranes, because the hoist is too high and the chain is not long enough

This method uses more than 10 manpower, and the safety risk and damage to crops are basically the same as or even higher than the first method. In addition, the above two methods require all high-voltage side lines to be powered off.

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