Trestle crane barge final assembly technique

A technology for gantry cranes and barges, applied in cranes, trolley cranes, loading/unloading, etc., can solve the problems of manpower, material resources and time, poor safety, affecting shipyard operations, etc., and achieve safe final assembly, far-reaching significance, and solution. The effect of the whole machine being hoisted on board and shipped ashore

Inactive Publication Date: 2008-10-29
SHANGHAI ZHENHUA HEAVY IND
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The task of the present invention is to provide a gantry crane assembly technology on a barge, which solves the problem that the traditional on-site assembly can only be shipped in parts due to the limitation of the factory site, which consumes manpower, material resources and time, and its safety is poor, which affects the operation of the shipyard. question

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  • Trestle crane barge final assembly technique

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Embodiment Construction

[0013] With reference to accompanying drawing, according to a kind of gantry crane of the present invention in barge assembly technology, at first on deck barge 1, two vertical towers 2 are fixedly installed, make gantry crane straddle deck barge and install. Because the span of the gantry crane is large, the length of the deck barge is not enough, so the gantry crane is supported by two towers 2 arranged on the barge.

[0014] The large-scale components of the gantry crane, including the main girder 3, the rigid leg 4, the flexible leg 5, the traveling mechanism of the cart and the trolley assembly, are pre-assembled at the front of the wharf of the factory.

[0015] Utilize two large-scale floating cranes to hoist the main girder 3 synchronously on two towers 2 welded together with the barge, and connect and fix with the towers.

[0016] Then use the floating crane to hoist the flexible leg 5 that is rigidly connected on the ground in advance and fix it in alignment with the...

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Abstract

The invention relates to an assembly technique of a gantry crane on a barge. Firstly, a deck barge is fixedly provided with two vertical tower frames so as to lead the gantry crane to be arranged by spanning the deck barge; the gantry crane is supported by the two tower frames which are arranged on the barge; large components of the gantry crane are assembled in advance at the front edge of the dock of the factory; a main beam is synchronously hoisted on the two tower frames by two large floating cranes and is fixedly connected with the tower frames; a flexible leg is then hoisted and fixedly butted to the main beam; the main beam section of the flexible leg end and the middle section of the main beam are fixedly connected with each other by a flange and a bolt; positioning welding is then carried out in a box body and all welding seams are completed then; a rigid leg is then hoisted and fixedly butted to the main beam; the main beam section of the rigid leg end and the middle section of the main beam are fixedly connected with each other by the flange and the bolt, and the positioning welding is carried out in the box body; all welding seams are completed. The assembly of gantry crane above-water is realized and the problems of whole hoisting, shipping and landing of the gantry crane are effectively solved by the assembly technique of the gantry crane.

Description

technical field [0001] The invention relates to a gantry crane, in particular to an assembly technology of a gantry crane on a barge. Background technique [0002] Nowadays, the trend of large-scale development of ships is rapid, and the docks are also being built larger and larger, and the span and height of the supporting dock gantry cranes are also increasing. Due to the large size and weight of such large-scale gantry cranes, the traditional method is Manufactured in sections in the factory, transported to the dock of the shipyard, assembled into components in sections, and then assembled on-site in the dock one by one using the single-horned gantry or double gantry, and using the cable lifting method. Because the on-site assembly will use a lot of manpower, material resources and dock space, the time is too long, and the safety is poor, which seriously affects the operation of the shipyard and restricts the development of production. If it is assembled at the manufactu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C19/00B65G67/60
Inventor 黄红雨张明海余华宝严冬华
Owner SHANGHAI ZHENHUA HEAVY IND
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