Lifter special for overhauling of 220-kilvolt overhead ground wire of power transmission line
A technology of transmission lines and lifters, which is applied in the direction of lifting devices, overhead lines/cable equipment, etc., can solve the problems of lightning protection line falling off, inconvenient use, and poor stability, so as to improve the economic benefits of enterprises, reduce power outage time, and improve work efficiency Effect
Inactive Publication Date: 2012-05-23
PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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Problems solved by technology
The existing operating tools mainly have the following deficiencies: (1) The tool is composed of a truss structure processed with ∠50×5 angle steel and a hand hoist. The total weight of the tool reaches 14 kg, which is very heavy and inconvenient to use
(2) The connection between the tool and the horn cross arm is not firm and lacks a lateral support structure, so the stability along the line is poor, and it is prone to rollover and the lightning protection line falls off. Its safety performance cannot meet the needs of safe production
(3) Part of the cross-arm component needs to be disassembled during installation of the tool. The operation procedure is cumbersome and time-consuming and laborious to use. It takes about 1 hour to replace a lightning conductor accessory fitting
Method used
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[0010] Such as figure 1 As shown, the special lifter for maintenance of 220 kV lightning protection wires of power transmission lines according to the present invention includes a balance beam 1, the balance beam is a flat-shouldered balance beam, and a clamp 2 is provided at the lower part of the balance beam 1 , a lifting rod 3 is provided at both ends of the balance beam 1, and the lifting rod is a lead screw. A suspension hook 5 is provided at the lower end of the lifting rod. A rotary handle 4 is provided on the left and right lifting rods.
[0011] The working principle of the present invention is as follows: the lifter of the present invention is fixed on the ground wire bracket at the top of the horn cross arm of the 220kV line; Tighten the bolts, fix the tool firmly; rotate the adjustment handle to lift the lightning conductor to a suitable position; remove the accessory fittings of the lightning conductor that need to be replaced, and replace it with a new one; rot...
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The invention discloses a lifter special for overhauling of a 220-kilvolt overhead ground wire of a power transmission line. The lifter comprises a balancing strut beam, wherein the balancing strut beam is a square shoulder type balancing strut beam; clamping apparatus is arranged on the lower part of the balancing strut beam; lifting rods are arranged at two ends of the balancing strut beam; and lifting hooks are arranged at the lower ends of the lifting rods. The lifter has a simple structure and good safety performance, is durable and tight in connection, is convenient to operate, shortens the working time by 50 percent, and can greatly improve the working efficiency.
Description
technical field [0001] The invention relates to a power facility maintenance device, in particular to a special lifter for the maintenance of a 220 kV lightning protection line of a power transmission line. Background technique [0002] The currently used 220 kV lightning protection line maintenance tool is composed of a truss structure processed by angle steel and a hand block hoist. When in use, it is installed on the upper part of the 220 kV horn cross arm as the working platform of the hand hoist. The hand hoist is installed on the suspension point on it, and then the lightning protection line is lifted to replace the accessory hardware. The existing operating tools mainly have the following deficiencies: (1) The tool is composed of a truss structure processed with ∠50×5 angle steel and a hand hoist. The total weight of the tool reaches 14 kg, which is very heavy and inconvenient to use. (2) The connection between the tool and the horn cross arm is not firm and lacks a ...
Claims
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IPC IPC(8): H02G1/02B66F3/08
Inventor 盛从兵邵震朱国营何铭
Owner PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER