Method for discharging boat to dock basin with dock yard trestle crane set

Abstract

The invention relates to a method, by which a shipyard gantry crane is wholly unloaded to a dock. A deck barge and a hoister are used for installing the shipyard gantry crane onto two tower frames; a rigid leg side tower frame and a main beam are fixedly connected with each other; a flexible leg side tower frame and the main beam are designed as a release-typed fixing type in the track direction of a dolly; the deck barge is delivered to the front end harbour of the user dock by a tugboat; the position of the barge is adjusted, so as to lead the flange surfaces of the rigid leg and the flexible leg to be exactly butted to the flange surfaces of the gantry of the container crane which is assembled at the user dock in advance; during the tidal stand of the river and sea water, the barge cabin is pressed by water; a guide pin is firstly used for guiding and a pivoting bolt is used for positioning; bolts beside the rigid leg are then mounted; meanwhile, the side of the flexible leg is adjusted; the guide pin is used for guiding so as to mount the bolts after the bolt holes are positioned; during the ebb of the river and sea water, the barge gradually falls with the tidewater and is disengaged to the gantry crane structure; the whole gantry crane is unloaded to the dock; therefore, the method of the invention has the advantages of safety, reliability, fastness, convenience, saving labour, saving time and saving dock sites.

Description

The method of unloading the whole machine of the gantry crane in the shipyard to the dock technical field The invention relates to a gantry crane, in particular to a method for quickly unloading a complete gantry crane in a shipyard to a dock. Background technique 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. From component assembly to hoisting of a gantry crane, it takes at least three months for the final assembly of the on-site tower in the dock. Since the on-site assembly ...

AI Technical Summary

Problems solved by technology

The task of the present invention is to provide a method for unloading a ship from a complete gantry crane in a shipyard to a dock, which solves the problems that the traditional on-site assembly occupies a large space, consumes manpower, material resources and time, has poor safety, and affects the operation of the shipyard

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