Mounting and dismounting method for gantry crane

A gantry crane, assembly and disassembly technology, applied in cranes, trolley cranes, transportation and packaging, etc., can solve the problem that gantry cranes cannot be installed and disassembled, and achieve less mechanical equipment, good economy, and improved utilization. Effect

Inactive Publication Date: 2008-08-27
1ST ENG OF CHINA ZHONGTIE MAJORBRIDGE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the technical problem that the gantry crane cannot be installed and

Method used

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  • Mounting and dismounting method for gantry crane
  • Mounting and dismounting method for gantry crane
  • Mounting and dismounting method for gantry crane

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Embodiment Construction

[0022] As shown in Figures 1 and 2, first assemble the main beam 101 on the bracket 6, and at the same time assemble the supporting leg distribution beam 102 under the main beam with the main beam 101. On the ground, two groups of each leg are assembled into two identical stringers, and each stringer is composed of a main leg 201, an auxiliary leg 202, a bending part of the main leg 203, and a bending part of the auxiliary leg 204. The two trusses of each supporting leg share the connecting pin 217, and the lower end of each truss of the supporting leg is hinged with the traveling cart 3, and the traveling cart 3 is temporarily fixed to the ground track. The assembled main girder is suspended below the connecting pin shaft 217 of the supporting legs through the connecting suspension plates 103 and 104 . The height of the bracket 6 used to assemble the main girder 1 should be adjusted according to the specific conditions of the door machine, and different materials and structur...

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PUM

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Abstract

The invention discloses a method for mounting and dismounting a gantry crane. Before mounting, a main girder and supporting legs are spliced to be an integration on the ground, wherein a supporting leg is connected to anther supporting leg via hinge, a lifting apparatus is arranged on the main girder, the main girder is suspended under two rotating hinges of the two supporting legs, as the supporting legs are gathered, the rotating hinges drives the main girder to lift upwards until reaching a design position, finally connecting rod elements of the supporting legs can be mounted, thereby achieving self-mounting of the portal crane, as the connecting rod elements of the supporting legs are removed, the supporting legs can be released, thereby achieving self-dismounting of the portal crane. The method has the advantages that 1, mounting and dismounting can be achieved on the ground without lifting work in high position, which is safe, convenient and time-saving, 2, less mechanical equipments are needed for mounting and dismounting the gantry crane, which is better in economy, 3, the method for mounting and dismounting the gantry crane has less requirements to the geographical location and the circumstance environment relatively, 4, the method for mounting and dismounting is convenient for inverted usage, which is beneficial to increasing the utilization rate of the gantry crane.

Description

technical field [0001] The invention relates to a method for assembling and disassembling a crane, in particular to a method for assembling and disassembling a gantry crane which is often used upside down. Background technique [0002] Gantry cranes (referred to as gantry cranes) are widely used in construction, shipbuilding and other fields. Usually it is mainly composed of outriggers, main girders, traveling carts, lifting cranes, etc. Due to the huge structure of the gantry crane, its various components such as outriggers and main beams are often processed in sections in the factory during manufacture, and then transported to the site for assembly. Assembly is a very important part of the manufacturing process. With the trend of large-scale cranes (heavy hoisting, large hoisting height, and large span), the hoisting height and hoisting tonnage during assembly are also increasing. At present, the commonly used assembly methods of gantry cranes are as follows: [0003] ...

Claims

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Application Information

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IPC IPC(8): B66C19/02
Inventor 冯广胜李艳哲海振雄周功建蔡红珍
Owner 1ST ENG OF CHINA ZHONGTIE MAJORBRIDGE GROUP
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