A method for installing super high and super large floating cranes in dock

A floating crane, ultra-large technology, applied in the direction of cranes, etc., can solve the problem of hoisting and carrying herringbone frame, the lifting capacity of the gantry crane cannot meet the requirements of the herringbone frame, the overall hoisting of the main arm frame of the boom bracket, and the construction of no floating crane, etc. problems, to achieve the effect of reducing cost and construction cycle

CN105417403BActive Publication Date: 2017-08-08CHINA MERCHANTS HEAVY IND JIANGSU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-08-08

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Abstract

The invention discloses a method for installing an ultrahigh ultra-large type floating crane in a dock. The method comprises the steps that a hull is adjusted to be horizontal, the center line of a deck of the hull is drawn on the deck surface, a propeller strut pull rod center line, a propeller strut press rod center line, an arm frame bracket front and rear landing leg center line and center lines of a jib lubbing mechanism, a main and auxiliary hook lifting mechanism and a main and auxiliary hook rigging hook mechanism are drawn on the basis of the the center line drawn on the deck surface, reinspection is conducted after drawing is conducted, and general assembly is conducted by hoisting a rear section assembly, a middle section assembly and a front section assembly of an arm frame through a portal crane according to center line installation parts. Closure of hull sections in the dock is conducted according to the installation sequence of crane parts, when the hull is closed, all large structural parts of the crane are hoisted through the portal crane of the dock, threading of steel wire ropes of all pulley systems is completed before the hull is put in water, idle load and heavy load adjustment of a floating crane can be conducted after a ship is in the water, the hoisting capacity of the portal crane on the dock is fully exerted, and the general building period of the floating crane is greatly shortened.
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Description

technical field

[0001] The invention relates to a method for installing a super-high and super-large floating crane in a shipyard. Background technique

[0002] Research on super-high floating cranes for offshore installation and construction of marine engineering, such as deep-sea semi-submersible platforms, towering legs of jack-up drilling platforms, drilling derricks and other offshore marine engineering equipment maintenance, dismantling and installation, overall hoisting of offshore wind power, etc. This project is proposed and researched under such a background, super-lifting height, large lifting capacity, large working range, four-hook large-plane multi-hanging points, special main and auxiliary jib frames, used for offshore engineering manufacturing, installation and maintenance Technical research, design and manufacture of special crane vessels; research and development, design and manufacture of a new generation of ultra-large floating cranes with stronger capabi...

Examples

Embodiment Construction

[0032] like Figure 1-8 As shown, a method for installing super high and super large floating cranes in a dock includes the following steps:

[0033] Step 1: After the hull is closed in the dock, adjust the level of the hull, draw the hull deck centerline 1 on the deck surface, and use this as a reference to draw the centerline 2 of the gable frame tie rod and the center line 3 of the gable frame pressure rod , centerline of the rear outrigger of the jib bracket 4, centerline of the front outrigger of the jib bracket 5 and centerline of the luffing mechanism 6, centerline of the main hook lifting mechanism 9, centerline of the auxiliary hook lifting mechanism 10, main hook rigging The centerline 8 of the hook mechanism, the centerline 7 of the hook mechanism of the auxiliary hook rigging, recheck after marking;

[0034] Step 2: Install and weld the guide plate at the installation position of the jib bracket on the hull deck, use a 900T gantry crane to hoist the rear outrigger...