Construction method of unfolding preliminary leading rope with remotely pilotless helicopter

An unmanned helicopter and construction method technology, applied in the direction of overhead line/cable equipment, etc., can solve the problems of affecting the surrounding environment, high cost, difficult construction of manpower deployment guide rope, etc., and achieve a high degree of intelligence and wind resistance. Strong, avoid the influence of line of sight and the effect of operation delay

Inactive Publication Date: 2010-07-28
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that it is difficult and costly to deploy the guide rope by manpower in the prior art, and the construction process of deploying

Method used

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  • Construction method of unfolding preliminary leading rope with remotely pilotless helicopter
  • Construction method of unfolding preliminary leading rope with remotely pilotless helicopter
  • Construction method of unfolding preliminary leading rope with remotely pilotless helicopter

Examples

Experimental program
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Effect test

Embodiment 2

[0159] The unmanned helicopter is used to deploy the primary guide rope to connect to the ±800kV upward line K2 large span project, and the distance between the two circuits is about 300m. It is about 2km away from the built 500kV double circuit Yangtze River Great Span. The crossing towers on both banks are located in the ponds, woods and reeds outside the dry embankment (facing the water). The width of the river at the crossing point of the loop is about 1022m, the distance between the sub-dikes is 1172m, and the distance between the main dikes is 2878m.

[0160] The section parameters of the flight path of the unmanned helicopter are shown in Table 8:

[0161]

[0162] Flight time: about 45 minutes (including 8 minutes of no-load return time);

[0163] Gasoline consumption: about 15 liters

[0164] Flight distance: 3.0km×2;

[0165] Flight altitude: 220~250m;

[0166] Flight speed: 1m / s~3m / s (up to 9m / s when returning with no load);

[0167] Initial guide rope spec...

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Abstract

The invention discloses a construction method of unfolding a preliminary leading rope with a remotely pilotless helicopter, belonging to the overhead transmission line installation field. The invention solves the problems that the construction of unfolding the leading rope manually is difficult and the cost is high; and the construction process of unfolding the leading rope from the ground can influence the surrounding environment. The process theory of the construction method of unfolding the leading rope with the pilotless helicopter is to utilize the interaction of the pilotless helicopter and a special tensioner to perform pull-to-unfold tension unfolding. When the pilotless helicopter flies through the top of each base-station steel tower, staff on the tower can use a special tool to place the preliminary leading rope in an upturned sheave groove. If when the pilotless helicopter flies through the top of each base-station steel tower, the rope-grapping operation is not successfully, the pilotless helicopter can hover, crab, fly up or down or adjust attitude over the base-station steel tower until staff on the tower grab the preliminary leading rope and successively complete operations of each base-station tower.

Description

technical field [0001] The invention belongs to the field of installation of high-altitude power transmission lines, and in particular relates to a construction method for deploying primary guide ropes by using a remote-controlled unmanned helicopter. Background technique [0002] With the continuous development of my country's economy, the demand for electric power is becoming increasingly tense, and the construction of the power grid has developed rapidly. At present, the construction of the power grid has entered the era of UHV. ) and across economic crop areas (such as ornamental seedlings, nurseries), etc., if the method of manpower spreading the guide rope requires a large amount of manpower and pedestrian paths, it is often restricted by the complex terrain of the construction site, and there are many locations (Mountains and dense forests, rivers and lakes, cliffs and deep valleys, etc.) can't find pedestrian roads at all, and the construction is more difficult and the...

Claims

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Application Information

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IPC IPC(8): H02G1/04H02G1/02
Inventor 钮永华张伟军张仁强王赢
Owner STATE GRID CORP OF CHINA
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