Pin pulling device used for pulling connecting pins of insulator with various types

Abstract

The invention discloses a pin pulling device used for pulling connecting pins of insulators with various types, which comprises a connecting rod of a main body; the front end of the connecting rod is provided with a semi-circle pin pulling hook, the rear end of the connecting rod is provided with a flat pin pulling shovel, the flat pin pulling shovel is arranged in a way that the flat pin pulling shovel forms an angle being 145 degrees plus and minus 10 degrees with the connecting rod. The beneficial effects are that when the device is used, the limiting of types of the insulators is avoided, by using the device, line repair personnel can realizes replacement of 35kV-500kV tension resisting insulators and the insulators with the various types on a straight line pole, the efficiency of work of electricity transmitting line repair is improved, and the working time of the repair personnel can be reduced, so that the danger of aloft working can be reduced, and particularly due to the advantages of being light and practical, simple and convenient to use, and safe and reliable, a solid foundation for generalization and application of the device can be established; when the device is used, the applying force of a porcelain bottle is smaller and short in time, so that the explosion is not caused; and during operation, the porcelain bottle can not be collided so as not to cause the crack of the porcelain bottle accidently.

Description

technical field [0001] The invention belongs to electric power maintenance equipment, and in particular relates to a new tool for pulling out connecting pins of insulators of various types. Background technique [0002] In recent years, with the increase of power load demand in Hangzhou power grid year by year, new lines have grown at a rate of more than 100 kilometers per year, and the number of iron towers has increased day by day. The complex and changeable weather (thunderstorm) and the intricate terrain (high mountains, minefields) make the probability of transmission lines being struck by lightning increasing year by year, and the number of self-exploding glass and porcelain bottles also increases accordingly, and the old lines also need Overhaul, therefore, replacement of hundreds of lightning-struck, damaged, aging insulators. In order not to affect the normal operation of the transmission line, unqualified insulators must be replaced in a short time. Usually, the ...

AI Technical Summary

Problems solved by technology

Because the two rings 81 are all on the side, and the connecting pin has ductility, it cannot be pulled out

Even if it is pulled out forcefully, it will cause permanent deformation of the connecting pin and cannot be used again

Therefore, the operator must prepare spare pins to replace the new insulators, which cannot be achieved in field operations

[0004] 2. For the H anti-pollution type large creepage distance insulator, because the hook body 104 cannot go deep into the position of the connecting pin, it cannot be operated

[0005] 3. Since the fulcrum is fixed at the same position during the operation, the local stress concentration will easily cause the porcelain bottle to burst, which will bring accidents to the maintenance work

[0006] 4. During operation, a pair of balance bars 102 is also very easy to touch the intact porcelain bottle, and the collision may easily cause the porcelain bottle to break

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