Ship loading and ship unloading method for gantry crane

Abstract

The invention provides a ship loading and ship unloading method for a gantry crane. The ship loading method comprises the following steps: mounting a cantilever beam below a balance beam of a travelling mechanism in a side not close to the ship of the gantry crane; overlapping a crossing bridge between a dock and the deck of the ship, and moving the gantry crane to a designated spot on the deck ofthe ship by the crossing bridge; mounting a hydraulic jacking device under the cantilever beam; jacking the cantilever beam by the hydraulic jacking device to jack the gantry crane, so that the super-wide part of of the travelling mechanism in a side not close to the ship of the gantry crane is suspended to the outside of the deck of the ship; and fixing the gantry crane on the deck of the ship.According to the ship loading and ship unloading method of the gantry crane disclosed by the invention, the problems of ship loading and ship unloading caused when carts of a large gantry crane exceeds the width of the ship is solved, influence to the gantry crane state and service life in the loading and unloading processes is reduced, the loading and unloading cycle is short, the cost is low, and the efficiency is high.

Description

technical field [0001] The invention relates to the field of gantry cranes, in particular to a method for loading and unloading ships of gantry cranes. Background technique [0002] Loading and unloading ships with large gantry cranes is a special and rare operation at home and abroad. Due to the large weight, large span, and wide width of the traveling mechanism of large gantry cranes, the deck width of large ships that can meet the requirements of complete machine transportation is often not enough. Usually The traveling mechanism of the gantry crane hangs 5-10m outside the ship. In response to the above situation, there are currently two methods in the industry: 1. Dismantle part of the traveling mechanism of the gantry crane; 2. Widen the hull. One of these two methods has higher requirements on the bearing capacity of the wharf and deck, and the structure of the gantry crane must be repeatedly dismantled and restored, which has a certain impact on the state and life of...

AI Technical Summary

Problems solved by technology

One of these two methods has higher requirements on the bearing capacity of the wharf and deck, and the structure of the gantry crane must be repeatedly dismantled and restored, which has a certain impact on the state and life of the gantry crane; The quantity is huge, and the construction must be completed in dock, and it must be reported to the classification society for approval from design to construction

The cost of the two methods is high and the construction period is long, especially the relocation of the old machine. The relocation cost far exceeds the budget of the shipyard company. Some companies even choose to give up the relocation and increase part of the budget to manufacture new gantry cranes.

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