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Method and apparatus for assembly of portal crane in shipbuilding

A technology of gantry cranes and girders, applied in cranes, trolley cranes, transportation and packaging, etc., can solve problems such as troubles, and achieve the effects of convenient use, accurate adjustments, and smooth movements

Inactive Publication Date: 2007-03-14
SHANGHAI PORT MACHINERY HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lifting force of this general assembly method is limited by the ground winch, so the girder is lifted twice, and the upper and lower trolleys are finally hoisted to the beam surface with other lifting equipment, which is troublesome

Method used

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  • Method and apparatus for assembly of portal crane in shipbuilding
  • Method and apparatus for assembly of portal crane in shipbuilding
  • Method and apparatus for assembly of portal crane in shipbuilding

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Embodiment Construction

[0031] The present invention will be further described below through specific embodiments of the present invention in conjunction with the accompanying drawings. As shown in Figure 1, a 600t shipbuilding gantry crane includes rigid legs (1), flexible legs (2), girders (3), traveling mechanism (4), upper trolley (5), lower trolley (6), maintenance crane ( 7), wherein the flexible legs are shown in Figure 2, including flexible hinges (8), upper joints (9), pull rods (10), and lower beams (11); the lifting capacity of this machine is 600 tons, and the gauge (span) 185 meters, the lifting height is 76 meters on the rail, the whole machine is 86 meters high, and its dead weight is about 4380 tons, of which the girder lifting part (including upper and lower trolleys, etc.) weighs 2900 tons. It is a portal type for large-tonnage and long-span shipbuilding. crane.

[0032] The steps of the specific assembly method and the structure and function of the device used are as follows:

[...

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Abstract

The assembling method and apparatus for ship-making portal crane features that the crossbeam rigid leg section and the flexible leg section with crossbeam raising system installed in the top are butt jointed to erected rigid leg and flexible leg; that the sections to be butt jointed are raised with the rigid leg and the flexible leg as support and hydraulic oil cylinder as raising sustained center; and that the butt joint seam is regulated by means of the hydraulic balance oil cylinder and balance twisted steel cable of the flexible hinge balance corbel system during the assembling. The said assembling process has accurate regulation, convenient balance capacity configuration and easily controlled balance, and is stable and safe. The present invention is suitable for the assembling of large portal crane.

Description

technical field [0001] The invention belongs to the field of cranes, in particular to an assembly method of a shipbuilding gantry crane and a device for implementing the method. Background technique [0002] In order to meet the needs of the development of international economy and trade, long-distance ocean-going transport ships show a trend of large-scale development, requiring the construction of these large-scale machinery and equipment to also develop into large-scale, equipped with large-scale shipbuilding gantry cranes are also more and more popular in the shipbuilding industry. attention. [0003] Gantry cranes for shipbuilding are referred to as gantry cranes for short. They have functions such as lifting, lifting, segmental turning in the air, and horizontal turning (fine-tuning) in the air. They have particularly prominent advantages in turning over and closing the hull. It is used in the hull manufacturing places of shipyards (such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C19/00
Inventor 张建华戚再强瞿祥杨方源张振雄高平刚戴世杰
Owner SHANGHAI PORT MACHINERY HEAVY IND
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