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Offshore heavy-load low-clearance luffing crane

A technology for cranes and low headroom, which is applied in cranes, transportation and packaging, etc. It can solve the problems of increasing the length of the arm body, increasing the operating range, unfavorable costs and safety control, etc., to reduce the cost of the luffing mechanism, increase the lifting height, The effect of enhancing work safety

Pending Publication Date: 2022-05-06
武汉武桥重工设计有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction project of a sea-crossing bridge in a coastal area of ​​my country requires the crane ship to be able to meet the heavy-duty hoisting requirements in the height-limited area. If a conventional crane ship is used for construction, it is necessary to greatly increase the length of the arm body and increase the operating range. This scheme does not Conducive to cost and safety control

Method used

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  • Offshore heavy-load low-clearance luffing crane
  • Offshore heavy-load low-clearance luffing crane
  • Offshore heavy-load low-clearance luffing crane

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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with specific embodiments, so that those skilled in the art can understand.

[0040] Such as Figure 1~5 The heavy-duty low-headroom luffing crane shown in the sea is arranged on the deck of the ship, and it includes a single gable assembly arranged on the stern deck and a cross-ship (width direction) arrangement arranged on the bow deck. 2 inverted L-shaped boom assemblies, and the 2 inverted L-shaped boom assemblies are symmetrically arranged on the center line of the deck;

[0041] The single herringbone frame assembly includes two herringbone girders 1 symmetrically arranged on the center line of the ship deck, and the tops of the two herringbone girders 1 are connected to the main beam 2,

[0042] The herringbone truss 1 is composed of a vertical rear tie rod 1.1 and an inclined front strut 1.2. The angle between the top of the rear tie rod 1.1 and the front strut 1.2 is 35°; Rod 1.3 a...

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Abstract

The invention discloses an offshore heavy-load low-clearance variable-amplitude crane which is arranged on a ship deck and comprises a single-herringbone frame assembly arranged on a ship stern deck and two inverted-L-shaped suspension arm assemblies arranged on a ship bow deck in the transverse ship direction, and the two inverted-L-shaped suspension arm assemblies are symmetrically arranged relative to the center line of the deck. According to the crane ship, a large amount of deck space can be reserved for later-stage construction through the single-herringbone frame assembly and the double-inverted-L-shaped suspension arm assembly, and the space utilization rate of the deck of the crane ship is greatly increased; meanwhile, the inverted-L-shaped suspension arm assembly is of an asymmetric space truss structure, the dead weight is reduced, and meanwhile the effective hoisting space between the two suspension arms is increased during double-arm hoisting.

Description

technical field [0001] The invention relates to the field of marine cranes, in particular to a marine heavy-load low-clearance luffing crane. Background technique [0002] At present, with the development of cross-sea bridge construction, the demand for large-scale lifting equipment is increasing, and the structure of cranes also needs to be continuously innovated to adapt to complex hoisting conditions. The construction project of a sea-crossing bridge in a coastal area of ​​my country requires the crane ship to be able to meet the heavy-load hoisting requirements in the height-limited area. If a conventional crane ship is used for construction, it is necessary to greatly increase the length of the arm body and increase the operating range. This solution does not Conducive to cost and safety control. [0003] In addition, the space utilization rate of the deck surface of the crane ship in offshore construction is very important. If the frame is combined with a single boom ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/06B66C23/52B66C23/64
CPCB66C23/06B66C23/52B66C23/64B66C2700/03
Inventor 张彦方任继新盛朝晖许建耀张建钢臧振兴容建华贾尚明张铮徐攀陈文军陈凤宋健王晶刘俊魏红珠姜承禄谢雨刘伟刘庆胡康覃海洋付金华白福凯袁邦盛郑烔烨
Owner 武汉武桥重工设计有限公司
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