Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Construction method for erecting electric transmission line double-leg angle steel tower by helicopter unit

A technology for power transmission lines and helicopter units, which is applied to towers, building types, buildings, etc., and can solve problems such as the difference in the root opening size of the hoisting tower section and the tower section in place, difficulty in positioning, and inability to position

Inactive Publication Date: 2019-07-02
浙江省送变电工程有限公司 +3
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Helicopter erection of overhead transmission line double-leg angle steel towers usually adopts the construction method of hoisting the tower section as a whole. However, due to the cross-joint plates between the tower sections, there is a significant difference in the root opening size of the hoisting tower section and the tower section in place, resulting in Difficult to even get in place

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method for erecting electric transmission line double-leg angle steel tower by helicopter unit
  • Construction method for erecting electric transmission line double-leg angle steel tower by helicopter unit
  • Construction method for erecting electric transmission line double-leg angle steel tower by helicopter unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] Such as Figure 1-4 As shown, the construction method of the two-leg angle steel tower of the transmission line erected by helicopter comprises the following steps:

[0022] 1) Perform pretreatment on the hoisting tower section 1, move the inter-section cross plate 3 above the breaking point of the main material 5 of the limbs, that is, install it on the hoisting tower section 1, and the installation of the docking auxiliary kit 6 cannot be affected after the upward movement , and then fixed by 2-3 bolts. At the same time, in order to facilitate manual auxiliary installation, the inter-section cross plate 3 is fixed to the bolt hole of the oblique material of the upper tower section with brown ropes, and the brown ropes always bear a certain load. In addition, the main The material cross connecting plate 4 is moved up synchro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a construction method for erecting an electric transmission line double-leg angle steel tower by a helicopter unit, and relates to the field of electric transmission line irontower construction. When a helicopter unit is used for erecting the double-leg angle steel tower, due to the fact that between-section cross-shaped connecting plates are installed on tower sections, difference exists between the root distance sizes of the lifting tower sections and the in-position tower sections, and being in-position is difficult. The construction method comprises the following steps that (1) the between-section cross-shaped connecting plates and main material cross-shaped connecting plates are installed on the lifting tower sections; (2) inner angle wrapping steel and outerangle wrapping steel of the in-position tower sections are connected with and fixed to inner main materials and outer main materials correspondingly, and then abutting auxiliary sleeve pieces are installed on the inner angle wrapping steel and the inner main materials correspondingly; (3) a helicopter hovers and operates to guide the tower sections to be in position through the abutting auxiliarysleeve pieces of the tower sections; after the tower sections are in position, high-altitude personnel installs a small quantity of bolts on two sides of abutting points of the tower sections, and thehelicopter unhooks and leaves; and (5) remaining bolts are installed in a supplementary mode, and the abutting auxiliary sleeve pieces are detached. According to the construction method for erectingthe electric transmission line double-leg angle steel tower by the helicopter unit, the problem of difficult position taking caused by significant difference of the root distance sizes of the liftingtower sections and the in-position tower sections is solved.

Description

technical field [0001] The invention relates to the construction field of transmission line iron towers, in particular to a construction method for erecting transmission line double-leg angle steel towers by helicopters. Background technique [0002] At present, the application of helicopters to erect towers of overhead transmission lines has become an important mechanized means for the construction of large-scale overhead transmission lines and rapid post-disaster reconstruction. It is necessary to promote the deepening application of helicopters in the construction of overhead transmission lines. In recent years, the State Grid Corporation of China has carried out the exploration and experiment work of helicopter construction in the demonstration project of overhead transmission lines, and has achieved phased results. It has the technical and material basis to promote the deepening application of helicopters. [0003] Helicopter erection of overhead transmission line doubl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/34E04H12/10
CPCE04H12/10E04H12/34E04H12/342
Inventor 程隽瀚肖世杰黄晓尧石涛汪国林丁鹏杰黄超胜王霖吴建军王弋王浩淼焦国杰李红军陈晓建彭立新段福平叶建云俞忠良邢仕东鲍庆徐辉李少华熊玮周波达王燕玲程睿郑晓斌
Owner 浙江省送变电工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products