Service tool for replacing insulator strings
A technology of insulator strings and maintenance tools, which is applied in the direction of overhead lines/cable equipment, etc., and can solve the problems of low replacement efficiency and large manpower consumption
Active Publication Date: 2018-04-17
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0003] Replacing strain insulator strings is a routine item for transmission line maintenance and live work, and it is also a daily work for transmission line operation and maintenance. The left and right clamps of the existing insulator string replacement can only be clamped at both ends of the insulator string. On the connection fittings (such as connecting plates), this kind of replacement fixture can only replace the entire insulator string, and it is impossible to replace only a certain section of insulators in the insulator string. On the other hand, when an insulator is replaced, it usually requires manpower to remove the old insulator string and place it in a safe place, and then lift the new insulator string and install it on the transmission line , this replacement method requires a lot of manpower, and the replacement efficiency is low
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[0014] figure 1 It is a schematic diagram of the structure of the present invention, as shown in the figure, the maintenance tool for replacing the insulator string in this embodiment includes a left clip main body 1 for fastening with the steel cap 10 of any insulator in the replaced insulator string, The right card main body 9 fastened to the steel cap 10 of another insulator in the replaced insulator string is connected between the left card main body 1 and the right card main body 9 for aligning the left card main body 1 and the right card main body 9 There are two parallel screw assemblies that apply a pretightening force between them; the screw assembly includes a pull rod 4 connected to the right card main body 9, a screw body rotatably connected to the pull rod 4, and fixed to the left The card main body 1 and the threaded sleeve 2 matched with the screw body and the handle 3 fixed to the screw rod in the transverse direction for driving the screw rod to rotate, wherei...
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The present invention discloses an overhauling tool for replacing an insulator chain. The tool comprises a left clamping main body configured to clamp and fix with the steel cap of any one insulator in the replaced insulator chain, a right clamping main body configured to clamp and fix with the steel cap of another one insulator in the replaced insulator chain, and two arranged screw assemblies in parallel connected between the left clamping main body and the right clamping main body and configured to apply pretightening force between the left clamping main body and the right clamping main body. The overhauling tool for replacing the insulator chain can replace one insulator chain segment in the insulator chain and can relieve the labor intensity in the old and new insulator chain replacing transferring process.
Description
technical field [0001] The invention relates to the field of maintenance equipment for power transmission lines, in particular to a maintenance tool for replacing insulator strings. Background technique [0002] Transmission line operation, maintenance and repair work is an important means to grasp the operation of the power grid, discover and deal with equipment defects in time, and is also the basic work to ensure the safe and stable operation of the line. Since the UHV power grid is at the core of the operation of the entire national grid, the operation and maintenance of the UHV power grid is of great significance to ensure the safe, stable and reliable operation of the UHV power grid and even the entire national power grid. [0003] Replacing strain insulator strings is a routine item for transmission line maintenance and live work, and it is also a daily work for transmission line operation and maintenance. The left and right clamps of the existing insulator string rep...
Claims
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IPC IPC(8): H02G1/04
CPCH02G1/04
Inventor 赵晓勇冉军德谢世恒郑凯
Owner STATE GRID CORP OF CHINA