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A new type of overhead line pay-off tool to ensure consistent sag in distribution network engineering construction

A technology of engineering construction and sag, which is applied in the field of pay-off racks, and can solve problems such as uneven horizontal force, inconsistent sag of wires, and different tensions of wires

Active Publication Date: 2021-10-15
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Inconsistent sag of the wires will lead to different wind swings of the wires in windy weather, which will easily lead to short circuit faults of the line;
[0004] 2. Due to the different wire diameters, the tension of the wires is also different, and the horizontal force on the cross-arm is uneven, which will cause the cross-arm to bend or rotate in the direction of small force

Method used

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  • A new type of overhead line pay-off tool to ensure consistent sag in distribution network engineering construction
  • A new type of overhead line pay-off tool to ensure consistent sag in distribution network engineering construction
  • A new type of overhead line pay-off tool to ensure consistent sag in distribution network engineering construction

Examples

Experimental program
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Effect test

Embodiment 1

[0032] see figure 1 , in the embodiment of the present invention, a new type of overhead pay-off tool for ensuring consistent sag in the construction of distribution network engineering, including a rolling shaft 5; two chucks 2 are symmetrically arranged on the left and right sides of the rolling shaft 5, and the rolling shaft The left and right sides of 5 are also symmetrically provided with two fixed brackets 1, and fixed bracket 1 is positioned at the outside of chuck 2, and chuck 2 is fixedly connected with fixed bracket 1 by fixed shaft 3, and the left and right ends of rolling shaft 5 are connected with two sides respectively. The two chucks 2 are rotationally connected; two locking mechanisms 4 are symmetrically installed between the two chucks 2, and the two locking mechanisms 4 are respectively located on the upper and lower sides of the rolling shaft 5. The locking mechanism 4 limits and fixes the wire so that the wire cannot be pulled again under the action of exte...

Embodiment 2

[0035] see figure 1 , in the embodiment of the present invention, a new type of overhead pay-off tool for ensuring consistent sag in the construction of distribution network engineering, including a rolling shaft 5; two chucks 2 are symmetrically arranged on the left and right sides of the rolling shaft 5, and the rolling shaft The left and right sides of 5 are also symmetrically provided with two fixed brackets 1, and fixed bracket 1 is positioned at the outside of chuck 2, and chuck 2 is fixedly connected with fixed bracket 1 by fixed shaft 3, and the left and right ends of rolling shaft 5 are connected with two sides respectively. The two chucks 2 are rotationally connected; two locking mechanisms 4 are symmetrically installed between the two chucks 2, and the two locking mechanisms 4 are respectively located on the upper and lower sides of the rolling shaft 5. The locking mechanism 4 limits and fixes the wire so that the wire cannot be pulled again under the action of exte...

Embodiment 3

[0042] see figure 1 , in the embodiment of the present invention, a new type of overhead pay-off tool for ensuring consistent sag in the construction of distribution network engineering, including a rolling shaft 5; two chucks 2 are symmetrically arranged on the left and right sides of the rolling shaft 5, and the rolling shaft The left and right sides of 5 are also symmetrically provided with two fixed brackets 1, and fixed bracket 1 is positioned at the outside of chuck 2, and chuck 2 is fixedly connected with fixed bracket 1 by fixed shaft 3, and the left and right ends of rolling shaft 5 are connected with two sides respectively. The two chucks 2 are rotationally connected; two locking mechanisms 4 are symmetrically installed between the two chucks 2, and the two locking mechanisms 4 are respectively located on the upper and lower sides of the rolling shaft 5. The locking mechanism 4 limits and fixes the wire so that the wire cannot be pulled again under the action of exte...

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PUM

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Abstract

The invention discloses a new type of overhead pay-off tool for ensuring consistent sag in distribution network engineering construction, including a rolling shaft; two chucks are symmetrically arranged on the left and right sides of the rolling shaft, and the left and right sides of the rolling shaft are also arranged There are two fixed brackets arranged symmetrically, the fixed bracket is located on the outside of the chuck, and the chuck is fixedly connected to the fixed bracket through the fixed shaft, and the left and right ends of the rolling shaft are respectively connected to the two chucks; the two chucks are symmetrical Two locking mechanisms are installed, and the two locking mechanisms are respectively located on the upper and lower sides of the rolling shaft. In the present invention, two locking mechanisms are installed symmetrically between the two chucks. The two locking mechanisms are respectively located on the upper and lower sides of the rolling shaft. The wire length counter is used to record the length of the wire when the wire is unwound to reach the preset length of the wire. After the numerical value, the wire length limiter controls the locking mechanism to limit and fix the wire so that the wire cannot be pulled again under the action of external force.

Description

technical field [0001] The invention relates to the technical field of pay-off racks, in particular to a novel overhead pay-off tool for ensuring consistent sag in distribution network engineering construction. Background technique [0002] In recent years, with the rapid development of the economy, the scale of urban and rural construction has continued to expand, the demand for electricity has increased, and users' requirements for power supply reliability and quality have also continued to rise, which has brought about the distribution network project. With increasing investment and increasing number of distribution network projects, it is further required that functions such as construction technical standards, process quality, and construction specifications of distribution network projects be gradually refined and improved. During many years of construction practice, it was found that when the overhead conductors are paid out by traditional winches or purely manual met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/04B65H49/20
CPCB65H49/20H02G1/04
Inventor 李如锋于璐霍振星陈超刘雪薇孙丽娟孙健单亚静张波
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD