Long-span load-carrying cable lifting machine and mounting method therefor

A cable crane and heavy-duty technology, which is applied in the direction of cable cranes, cranes, transportation and packaging, etc., can solve the problem that the lifting capacity cannot meet the needs, so as to reduce the amount of steel wire rope materials and tension workload, reduce The effect of deflection at the top of the tower and improvement of rigidity

Inactive Publication Date: 2008-07-23
CHINA MAJOR BRIDGE ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the maximum rated lifting capacity of cable cranes at home and abroad is 170t (cable cranes for the construction of Egongyan Yangtze River Bridge in Chongqing). With the development of bridge construction, the current lifting capacity of cable cranes...

Method used

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  • Long-span load-carrying cable lifting machine and mounting method therefor
  • Long-span load-carrying cable lifting machine and mounting method therefor
  • Long-span load-carrying cable lifting machine and mounting method therefor

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Embodiment Construction

[0023] Referring to Fig. 1, 2, 3, this cable crane is made up of buckle cable tower 1, cable tower 2, main cable and hoisting traction system 3, anchoring system 4, electromechanical system 5, cable wind system 6.

[0024] Take the 420t cable crane of Caiyuanba Yangtze River Bridge in Chongqing as an example below to describe the present invention:

[0025] 1. Cable tower

[0026] The cable tower 2 and the buckle tower 1 are built together, the bottom of the buckle tower 1 is consolidated, and the cable crane tower 2 is hinged on the top of the buckle tower 1 to reduce the unbalance level when the cable crane is working The influence of force on the buckle tower 1. The 1 column of the buckle cable tower is assembled by double-column and three-column universal rods inside and outside. The 2 columns of the cable crane are assembled from single-column universal rods. The cable tower frame 2 is temporarily consolidated during assembly, and after the cable tower frame 2 is assem...

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Abstract

The invention provides a long-span over loading cable crane and an installation method thereof which relates to a cable crane used in bridge construction and consists of a guy rope tower 1, a cable tower 2, a main cable and a hoisting traction system 3, an anchoring system 4, an electromechanical system 5 and a wind cable system 6. The tower of the cable crane consists of the guy rope tower 1 and the cable tower 2 which is hinged on the top of the guy rope tower 1 and fixedly connected with the bottom of the guy rope tower 1. The invention adopts the techniques of the parallel bearing of a plurality of main cables, the wind cables connected in series, the joint construction of the cable towel and the guy rope tower, etc., thereby greatly improving the loading capability of the long-span cable crane and lowering the manufacturing cost as much as possible. The invention can reduce the influence of the unbalanced horizontal force on the top of the cable tower 2 on the guy rope tower 1 and greatly save the construction cost of the guy rope tower 1. The loading cable crane has strong load-carrying capability, wide loading range and high economic performance.

Description

technical field [0001] The invention relates to a long-span heavy-duty cable crane used in bridge engineering construction. Background technique [0002] With the development of segmental construction technology of long-span bridges at home and abroad, the construction of girder bridges presents a trend of factory manufacturing and on-site large-segment installation. The cable crane is an important equipment for transporting and installing components in the construction of bridge segments, and its hoisting capacity is the key to whether large-scale installation can be realized on site. At present, the maximum rated lifting capacity of cable cranes at home and abroad is 170t (cable cranes for the construction of Egongyan Yangtze River Bridge in Chongqing). With the development of bridge construction, the current lifting capacity of cable cranes is far from being able to meet the needs (Chongqing The steel truss girder installation section of the Caiyuanba Yangtze River Bridg...

Claims

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Application Information

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IPC IPC(8): B66C21/00E01D21/00
Inventor 秦顺全潘东发周外男李军堂毛伟琦王东辉姚发海周超舟李兴华刘翠云马涛张瑞霞魏善平贾卫中
Owner CHINA MAJOR BRIDGE ENG
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