Quay cranes for container handling

Abstract

The invention discloses a shore bridge used for loading and unloading containers. The shore bridge comprises door frame type supporting legs, two upper travelling girders, two lower travelling girders, two lifting trolleys and at least one horizontal transportation device, wherein the two upper travelling girders are arranged on the door frame type supporting legs in parallel; travelling rails are arranged inside the two upper travelling girders; the two lifting trolleys are arranged on the travelling rails, and are separately positioned at the front and rear ends of the upper travelling girders; the two lower travelling girders are arranged on the door frame type supporting legs in parallel, and are positioned below the two upper travelling girders; transportation rails are arranged inside the two lower travelling girders; and the horizontal transportation device is arranged on the horizontal transportation rails. By virtue of all structures of the shore bridge, the shore bridge completes container loading, unloading and transferring processes without other lifting devices of a ferry bridge or a gantry crane, so that the structure is more convenient and quicker in the container loading, unloading and transferring processes in comparison with a structural form of the shore bridge in the prior art, and therefore, the loading and unloading cost is further reduced.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a quay bridge for loading and unloading containers. Background technique [0002] The shoreside container crane (referred to as the quayside crane) is a device used to load and unload the containers on the ship on the shore. Because of its simple operation and heavy load, it brings great convenience to the loading and unloading of containers, and not only improves the loading and unloading process. Efficiency, reduced labor costs, and high safety performance, more and more widely used. At present, the quayside bridge generally adopts such as figure 1 The structure shown includes outrigger 1 , main beam 2 , transport beam 3 , lifting trolley 4 and transport trolley 5 . Its working principle is roughly as follows: firstly, the operator controls the lifting trolley 4 to run on the main beam 2, and when it is aligned with the container on the cargo ship, it controls it to stop ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a quay crane for container loading and unloading to solve the problem that in the prior art quay bridge, it is necessary to use a ferry bridge or other lifting devices to put the container in the yard, and the lifting trolley cannot continue to work. , at least one technical problem of the low efficiency of the quay crane

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