500kV overhead line tangent tower lightning conductor lifting working device
A technology for overhead lines and working devices, which is applied in the directions of overhead lines/cable equipment, hoisting devices, portable lifting devices, etc., can solve the problems that the cable lifter can only be located on the grate, the operation is inconvenient, and it is time-consuming and labor-intensive. The structure is simple, the production is convenient, and the effect of ensuring work safety
Inactive Publication Date: 2014-11-05
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0003] Analyzing the contradictions in the operation, when the operator is working at the cross arm of the lightning protection line, due to the design of the cross arm of the lightning protection line, its width is smaller than the length of the protection line of the lightning protection line, so that the lifting point of the wire lifter can only be located at the protection line on the line
Therefore, the operation is very inconvenient, time-consuming and labor-intensive
Method used
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[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] See attached Figure 1-3 , this embodiment includes a crossbeam 1, a wire lifter arranged at both ends of the crossbeam 1 for hooking the lightning conductor, and two U-shaped lower hooks 3 arranged in the middle of the crossbeam 1 for connecting with the crossarm of the lightning conductor ( The overall shape is J);
[0017] The wire lifter includes a long bolt 5 and a hook 6 connected to the bottom of the long bolt 5;
[0018] Two long slots 7 at a certain distance are arranged in the middle of the beam 1 , the upper part of the hook 3 passes through the long slots 7 , and the upper part of the hook 3 is provided with a nut 2 .
[0019] In the present invention, by changing the position of the lifting point in the operation, a beam 1 made of a high-strength angle steel (or channel steel) is used as the main material, and holes are drilled at both ends to...
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The invention discloses a 500kV overhead line tangent tower lightning conductor lifting working device which comprises a cross arm, wire lifting devices and two hooks. The wire lifting devices are arranged at the two ends of the cross arm and used for hooking a lightning conductor, the hooks are arranged in the middle of the cross arm and used for being connected with lightning conductor cross arms, and the lower portions of the hooks are of U shapes. Each wire lifting device comprises a long bolt and a lifting hook connected to the lower portion of the corresponding long bolt. The middle of the cross arm is provided with two elongated slots spaced by a certain distance. The upper portions of the hooks penetrate through the elongated slots. The upper portions of the hooks are provided with nuts. According to the working device, the cross arm is arranged and provided with the wire lifting devices and the hooks, the structure is simple, the manufacturing is convenient, the work efficiency can be improved after the working device is adopted, the labor intensity is relieved, and work is safe and fast.
Description
technical field [0001] The invention relates to a lifting tool on an overhead line, in particular to a lifting operation device for a straight line tower lightning protection line of a 500kV overhead line. Background technique [0002] At present, when we are dealing with the defect of the ground wire of the 500kV Xinliao Ⅰ and Ⅱ line, we need to replace the protective line of the optical cable. During the operation, the personnel found that due to the tower shape of the Xinliao Ⅰ and Ⅱ wires, the length of the cross arm of the lightning protection cable is much smaller than the length of the optical cable protection line, which leads to no suitable tools to use when replacing the optical cable protection line. And because the apex of the ground wire is narrow, only one person can be accommodated to carry out the operation, which makes it extremely difficult to complete the work. The personnel can only use the ground wire lifter to lift one side directly under the ground wi...
Claims
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IPC IPC(8): H02G1/02G02B6/48B66D3/12
Inventor 谢永彬芦浩贾玉伟马昊
Owner STATE GRID CORP OF CHINA