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Method and tool for lifting overhead ground wire

A technology for overhead ground wires and tools, which is applied in the direction of overhead lines/cable equipment, etc., and can solve problems such as heavy overhead ground wires, uncoordinated mutual cooperation, and waist sprains

Inactive Publication Date: 2011-11-09
ELECTRIC POWER OF HENAN LUOYANG POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Since the standing position of the construction personnel on the tower is not the best position for carrying on the shoulders, the strength cannot be fully exerted during the carrying process, and it is difficult to use the shoulders to make the ground wire reach the proper position for installation
[0004] (2) When the overhead ground wire is carried on the shoulder, due to the heavy weight of the overhead ground wire, many high-altitude workers cause waist sprains during the operation
[0005] (3) Due to the effect of the tension of the ground wire, the higher the height and the greater the tension, the greater the force required. Many ground wires with large gear distances are operated, and the operators did not carry them to the position due to the strength. Insufficient and the ground wire falls off the shoulder and the ground wire falls to the ground
[0006] (4) This operation method requires two people on the tower to work together. Due to the difference in standing position and height, the cooperation is not coordinated, the work efficiency is low, the labor intensity is high, and there are many safety hazards

Method used

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  • Method and tool for lifting overhead ground wire
  • Method and tool for lifting overhead ground wire
  • Method and tool for lifting overhead ground wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] Such as figure 1 , 2 As shown, a wire lifting tool for an overhead ground wire is a ratchet-type symmetrical two-point lifting tool, including: a fixture 1, a lifting frame, and a lifter. The convex cavity structure of the fixture 1 is stuck in a convex cross-section. On the double-angle steel hanging point of the shape, the two ends of the convex structure of the clamp 1 are provided with connecting holes, which are formed by connecting the fixed screw 14 with the symmetrical two-point lifting device; the symmetrical lifting frame is composed of channel steel 15 and The hoisting device connection hole that two ends are provided with and the clip 1 connection hole that channel steel 15 middle parts are provided with constitute. The fixture 1 is installed on the angle steel of the iron tower hanging point, and fixed with the top wire 2. In order to facilitate disassembly, the lifting frame 4 of the lifting device is connected to the connecting holes of the lifting devic...

Embodiment approach 2

[0038] Such as image 3 As shown, a wire lifting tool for an overhead ground wire is a ratchet-type single-point lifting tool for an overhead ground wire, which includes an upper clamp 1 and a lower lifting part composed of two parts. The upper clamp 1 is installed on the hanging point angle steel 14. The top wire 2 is fixed. In order to facilitate disassembly and assembly, the lifting frame 4 is connected with the fixture 1 through the connecting screw 3. The lifting frame 4 is provided with a winding steel pipe 5, and one end of the winding steel pipe is provided with a ratchet 7, and the lifting frame 4 on the upper part of the ratchet is provided The ratchet 8 and the ratchet 7 cooperate to realize automatic locking and prevent the tubular winding device 5 from reversing; No. wrench 9, the other end is provided with the small size wrench 9 supporting with ratchet wrench 13, and winding steel pipe 5 and fixed screw mandrel 10 link to each other by wire rope 11 and suspensio...

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Abstract

The invention relates to the technical field of lifting operation of power transmission lines and discloses a method and a tool for lifting an overhead ground wire. The method comprises the following steps of: lifting the overhead ground wire by using the tool for lifting the overhead ground wire; and clamping a clamp 1 having a convex cavity structure on convex angular steel which is arranged symmetrically on an iron tower. The tool for lifting the overhead ground wire comprises the clamp 1, a lifting frame and a lifter, wherein the clamp 1 has the convex cavity structure which is clamped on a tower rod having a convex section; connecting holes are formed in two end edges of the convex cavity structure of the clamp 1 and connected with the lifter by fixing screws 14; and the lifter is a symmetric two-point lifting device which consists of lifting devices at two ends of a symmetric lifting frame. By the invention, high-altitude operation can be performed by a single person, a waist injury in the process of construction is avoided, and damage to a cross arm is avoided. The tool has the characteristics of simplicity, reasonability, wide installation application, convenience for installation, firmness, stability, safety, reliability, short distance between a lifting point and a lifting object, high working efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of lifting operations for power transmission lines, in particular to a wire lifting method and a wire lifting tool for an overhead ground wire of power transmission lines. Background technique [0002] At present, most of the hanging points of the overhead ground wires of the power transmission line towers use double-angle irons with the plane facing down, and a few overhead ground wires use double-angle irons and the planes are upward. For the installation of the overhead ground wires of the power transmission line towers, construction In order to remove the overhead ground wire from the pay-off pulley, the personnel fix the ground wire at the hanging point of the ground wire by using the connecting hardware after installing the ground wire suspension clamp. The method of carrying has the following problems in actual work: [0003] (1) Since the standing position of the construction personnel on the tower ...

Claims

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Application Information

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IPC IPC(8): H02G1/02
Inventor 李岩刘治稳
Owner ELECTRIC POWER OF HENAN LUOYANG POWER SUPPLY
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