Parallel four-main-cable cable-crossing crane and using method thereof

A parallel four and cross-cable technology, which is applied in the direction of traveling mechanism, cable crane, hoist, etc., can solve the problems of unsuitable hoisting requirements of four main cable suspension bridges

Pending Publication Date: 2021-07-06
CCCC SECOND HIGHWAY ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a parallel four-main-cable cross-cable crane and its use method, aiming at overcoming the fact that the double-main-cable cross-cable crane in the prior art, which adopts single-side single main cable to carry and travel, is not applicable to the hoisting of four-main-cable suspension bridges asked questions

Method used

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  • Parallel four-main-cable cable-crossing crane and using method thereof
  • Parallel four-main-cable cable-crossing crane and using method thereof
  • Parallel four-main-cable cable-crossing crane and using method thereof

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Embodiment 1

[0035] Such as Figure 1~4 As shown, the present invention provides a kind of parallel four main cable cross-cable crane, comprises support on the cable and walking system, hoisting system, main truss 8 and control system, described support on the cable and walking system and hoisting system are two One, two cable support and walking systems are respectively arranged in parallel at the two ends of the main truss 8 through the hoisting system.

[0036] Further, the above-mentioned cable support and walking system includes two sets of walking mechanisms, traction mechanisms, connecting shaft boxes 11 and parallel structures 16, the two sets of running mechanisms are arranged in parallel and are fixedly connected by the parallel structure 16 between them. The upper ends of the group walking mechanism are also hinged with the connecting shaft box 11 through the transverse pin shaft 19; the traction mechanism is arranged on the parallel structure 16.

[0037] Further, the traction...

Embodiment 2

[0048] On the basis of embodiment 1, a kind of using method of the parallel four main cable spanning crane of the present invention, concrete steps are:

[0049] Step 1: Install the upper cable support and walking system, hoisting system, and main truss 8 at the predetermined position of the formed main cable, start the load transfer cylinder of the traveling mechanism, and move the traveling rollers up to the hoop body of the traveling mechanism to support on the top of the main cable face, tighten the hoop body, and the piston of the load transfer cylinder continues to shrink, so that the traveling roller is separated from the main cable;

[0050] Step 2: The main lifting jack of the hoisting system lowers the steel strand and connects the shoulder beam with the stiffening beam directly below the crane (usually transported by water), starts the main lifting jack, lifts the stiffening beam into place, and connects the stiffening beam with the crane cable connection to complet...

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Abstract

The invention relates to a parallel four-main-cable cable-crossing crane and a using method thereof. The parallel four-main-cable cable-crossing crane comprises two on-cable supporting and walking systems, two hoisting systems, a main truss (8) and a control system, and the two on-cable supporting and walking systems are arranged at the two ends of the main truss (8) in parallel through the hoisting systems respectively. When the parallel four-main-cable cable-crossing crane is used for the suspension bridge with the main cables in the form of the parallel four main cables and double main cables arranged on one side in parallel, the main cables are balanced in stress, the overall structure is light in self weight, high in stability, high in controllability and high in self-adaptive capacity, and the hoisting operation difficulty of the oversized-span suspension bridge is reduced.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a four-parallel main cable spanning crane and a using method thereof. Background technique [0002] Due to its structural characteristics, the suspension bridge has a strong spanning ability and is widely used in basic transportation construction. At present, the construction of several domestic suspension bridges over 2000m has been put on the agenda, and technical research and exploration of suspension bridges with a main span of 3000m have been carried out at home and abroad. For a suspension bridge with a main span exceeding 2000m, if the conventional form of two main cables is used, the diameter of the main cables is very large, and the construction is difficult. Therefore, the main cables can be set in the form of parallel four main cables and double main cables juxtaposed on one side, which can not only improve the mechanical performance of the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C21/00B66C11/00B66C9/08E01D21/00
CPCB66C9/08B66C11/00B66C21/00E01D21/00
Inventor 刘勋李鹏黎训国霰建平金仓张浩伟刘新华舒宏生侯润锋白文哲
Owner CCCC SECOND HIGHWAY ENG CO LTD
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