Power distribution network overhead line lifting tool with supporting frame

Abstract

The invention discloses a power distribution network overhead line lifting tool with a supporting frame in the technical field of grid equipment. The power distribution network overhead line lifting tool with the supporting frame comprises two groups of vertical plates; the two groups of vertical plates are arranged in a bilaterally symmetric manner; the tops of the two groups of vertical plates are connected with top plates, wherein a motor base is arranged at the top of the left end surface of the group of the vertical plates on the right side; a motor is transversely arranged in a cavity ofthe motor base; a motor shaft is arranged on the right side of the motor; a conical gear I is arranged on the motor shaft; a conical gear II matched with the conical gear I is arranged at the top ofthe conical gear I; a screw rod is fixedly arranged and connected to a cavity of the conical gear II in a sleeving manner; and a fixing plate is arranged at the bottom of the right end surface of thegroup of vertical plates on the right side. According to the power distribution network overhead line lifting tool with the supporting frame, an insulated tower top is stably hoisted; during hoisting,the insulated tower top is firmly hooped to be prevented from falling off to be damaged; and moreover, as a reinforcing device is arranged at the bottom of the supporting frame, the supporting frameis prevented from shaking to cause collapsing of the supporting frame to damage the tower top.

Description

technical field [0001] The invention relates to the technical field of power grid equipment, in particular to a hoisting tool for an overhead line of a distribution network with a support frame. Background technique [0002] The distribution network refers to the power network that receives electric energy from the transmission network or regional power plants, and distributes it locally through power distribution facilities or distributes it to various users step by step according to voltage. It is composed of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators and some auxiliary facilities, etc., and plays an important role in distributing electric energy in the power network. [0003] Installing insulating tower heads on distribution lines can effectively improve the insulation capacity of overhead lines in distribution networks, effectively avoid accidents such as line tripping, insulator flashover, and insulated wir...

AI Technical Summary

Problems solved by technology

[0003] Installing insulating tower heads on distribution lines can effectively improve the insulation capacity of overhead lines in distribution networks, effectively avoid accidents such as line tripping, insulator flashover, and insulated wire disconnection under lightning-induced overvoltage, and improve the reliability of line operation , the insulating tower head needs hoisting tools to be installed on the pole due to its heavy weight. When the pole is set on a flat ground with good traffic conditions, the insulating tower head can be hoisted by a large automatic crane, but the transportation in mountainous areas is inconvenient. In areas where traditional hoisting tools mostly install fixed pulleys and movable pulleys on the support frame to hoist the insulating tower head, the labor intensity is high, time-consuming and labor-intensive, which is not conducive to improving the installation efficiency of the insulating tower head, and, through the traditional hoisting device When the stay rope is set on the fixed pulley and the movable pulley, and then the insulation tower head is lifted by pulling the stay rope, the insulation tower head is prone to shake during the lifting process and collides with the support frame, resulting in insulation The tower head is easily detached from the hoisting device, resulting in waste of financial resources and resources. At the same time, due to the simple structure of the existing hoisting support frame, the bottom is prone to shaking during the hoisting process, which is not conducive to the stable operation of the hoisting operation. The frame is very prone to tilt and collapse, causing safety accidents. Therefore, a lifting tool for the overhead line of the distribution network with a support frame is of great practical value.

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