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Lifting method, system and device for automatically adjusting tension of power transmission line

A transmission line, automatic adjustment technology, applied in transportation and packaging, load suspension components, electrical digital data processing, etc. Collision and other problems, to avoid manual control of lifting equipment, to achieve full automation control, to ensure the effect of stability

Pending Publication Date: 2021-12-31
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that in the prior art, most of the hoisting equipment is controlled by manpower, the hoisting stability cannot be guaranteed, and it is easy to cause collisions between the hoisted goods such as rods and construction tools and the transmission tower, the present invention provides a power transmission Line tension automatic adjustment hoisting method, including:

Method used

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  • Lifting method, system and device for automatically adjusting tension of power transmission line
  • Lifting method, system and device for automatically adjusting tension of power transmission line
  • Lifting method, system and device for automatically adjusting tension of power transmission line

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Effect test

Embodiment 1

[0073] The invention discloses a hoisting method for automatically adjusting the tension of a transmission line, such as figure 1 shown, including:

[0074] Step 1: Obtain the operating position of the hoisted cargo on the main tower leg of the power transmission tower, and the actual tension value of the rope connected to each servo tension lifting device at the operating position;

[0075] Step 2: Based on the actual tension value of each rope and the ideal tension value of each rope at the working position, adjust the rotation speed of the servo motor of the servo tension lifting device connected to each rope;

[0076] The ideal tension value of the rope: based on the transmission tower information, the quality of the lifted goods, the working position of the lifted goods and the positions of the servo tension lifting equipment, it is calculated by using the lifting mechanics model.

[0077] Wherein, step 1: Obtain the operating position of the hoisted cargo on the main to...

Embodiment 2

[0087] A transmission line tension automatic adjustment lifting system in which each component can be disassembled and transported, and can be assembled quickly after arriving at the job site. The components here include various servo tension lifting equipment, multiple ropes, fixed structures and adjustment modules. Both mountainous and hilly areas can realize rapid motorized operations, without restrictions on operating terrain conditions.

[0088] The fixed structure is fixed on the top of the main tower leg of the transmission tower;

[0089] The number of servo tension lifting devices is the same as the number of ropes, and they are respectively connected correspondingly.

[0090] Each servo tension hoisting device at least includes: at least one first servo tension hoisting device and a plurality of second servo tension hoisting devices symmetrically arranged on both sides of the first servo tension hoisting device;

[0091] The rope connected to the first servo tension...

Embodiment 3

[0129] Taking three servo tension hoisting equipment as examples, we will introduce the construction of the hoisting mechanics model in detail, as follows: Figure 7 Shown:

[0130] The transmission line tower is composed of four main tower legs. When hoisting the hoisted goods, the hoisted goods are lifted based on one main tower leg in the iron tower, and the fixed pulley is located at the top of the main tower legs. , the angle between the main tower leg and the vertical line of the ground is 6.3°, as Figure 4 As shown, assuming that the length of the main tower leg is 80m, the tensions generated by the three-rope hoisting are T1, T2, and T3 respectively. device) connected by the rope, which mainly plays the role of hoisting. The tensions T2 and T3 are provided by ropes connected to the second servo tension hoist (ie, the left servo tension pulling device and the right servo tension pulling device) located symmetrically on both sides of the first servo tension hoisting d...

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Abstract

The invention provides a lifting method, system and device for automatically adjusting tension of a power transmission line. The lifting method comprises the steps that the operation position of lifted goods on a main tower leg of a power transmission tower and the actual tension value of a rope connected with servo tension lifting equipment at the operation position are obtained; based on the actual tension value of each rope and the ideal tension value of each rope at the operation position, the rotating speed of a servo motor of servo tension lifting equipment connected with each rope is adjusted; the ideal tension value of the rope is calculated by utilizing a lifting mechanical model based on the main tower leg of the power transmission tower, the lifted cargo, the operation position of the lifted cargo and the position of each servo tension lifting device. According to the invention, the ideal tension of each rope when the hoisted cargo is at each operation position is calculated through the hoisting mechanical model, and the actual tension value of the rope is adjusted to the ideal tension value by adjusting the rotating speed of the servo motor, so that the hoisting equipment is prevented from being manually controlled, and full-automatic control is realized.

Description

technical field [0001] The invention relates to the technical field of electric power construction, in particular to a lifting method, system and device for automatically adjusting the tension of a transmission line. Background technique [0002] The transmission line iron tower is a tower-shaped building for power transmission and transformation. The line iron tower belongs to the space truss structure. The rod is mainly composed of a single equilateral angle steel or a combined angle steel. And during the maintenance process, the poles and construction equipment are mostly carried out by hoisting, and if the manual carrying method is used, there will be greater operational risks. [0003] At present, most of the existing power tower hoisting devices are large-scale hoisting equipment. In complex areas such as mountains and hills, large-scale mechanical equipment cannot enter. If a small electric winch is used, the hoisting trajectory of the hoisted goods along the angle st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/34B66C13/16E04H12/08G06F30/20G06F119/14
CPCB66C1/12B66C13/16E04H12/34E04H12/08G06F30/20G06F2119/14
Inventor 周威胡春华张陵万建成王开科江明游溢宋泽明
Owner CHINA ELECTRIC POWER RES INST
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