Large-scale full-turning offshore platform crane

Abstract

The invention provides a large full-gyration offshore platform crane which relates to the lifting machinery and comprises a rotary column, an arm support, a main lifting winch, an auxiliary lifting winch, an arm support variable-breadth winch, a gyration bearing drive mechanism, a main hanger hook, an auxiliary hanger hook and a driver cab. The arm support is connected with the middle part of therotary column through a hinge point mounted on the root of the arm support; the lower half part of the rotary column is arranged under a main deck and connected with a semi-diving platform through the gyration bearing drive mechanism. The gyration bearing mechanism is composed of an upper radial bearing, a lower radial bearing, a peg-tooth, a three-in-one decelerator, a centripetal thrust bearingand a rubber support; the upper radial bearing and the lower radial bearing are respectively mounted on the middle and the lower parts of the rotary column. The centripetal thrust bearing and the rubber bearing are sequentially mounted on the bottom part of the rotary column; the peg-tooth mounted on the lower deck is meshed with the three-in-one decelerator mounted on the corresponding position of the rotary column. The large full-gyration offshore platform crane has the advantages of novel, compact and practical structure, high efficiency and being a large full-gyration offshore platform crane with economical and practical properties.

Description

technical field [0001] The large-scale full-rotation offshore platform crane described in the present invention relates to a hoisting machine, in particular to a large-tonnage full-rotation crane carried by an offshore ship. Background technique [0002] At present, with the development of the offshore oil exploration industry, the demand for lifting equipment for the installation and maintenance of offshore oil platforms is increasing, and newer and higher requirements are also put forward for lifting equipment. Large lifting capacity, large working range, deep water operation and full rotation have become routine requirements. On this basis, higher requirements are put forward for the effective working area of ​​the deck of the lifting ship, that is, the larger the deck area of ​​the ship is required to be occupied by the lifting equipment. The smaller the better, to increase the efficiency of the use of the ship. [0003] At present, most of the large full-slewing cranes...

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Problems solved by technology

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to study and design a new type of large-scale full-slewing offshore platform crane, thereby solving the problem that large-scale full-slewing cranes for lifting ships occupy a large area of ​​deck space

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