Automatic loading and unloading method of quay crane

Abstract

The invention provides an automatic loading and unloading method for a quay crane. In one-time work cycle of a trolley, a first running step, a detection step, a judging step, an adjusting step and abox landing step are at least included, wherein in the first running step, the trolley runs to a preset position from a first position of a main beam; in the detection step, a deviation value of a heavy object is detected; in the judging step, a difference value between the deviation value and a preset deviation value is calculated, and if the difference value is smaller than a deviation threshold, a box landing step starts; if the difference value is larger than or equal to the deviation threshold, the adjusting step is performed; in the adjusting step, the position of the trolley is adjustedto a second position from the preset step; and in the box landing position, a heavy object is lowered to the box landing position. According to the automatic loading and unloading method for the quaycrane, when the trolley enters the box landing step, the position where the trolley takes its place is not over the box landing position, a certain distance exists between the position where the trolley takes its place and the box landing position, the distance is determined according to the deviation value of the heavy object, so that the heavy object can be roughly aligned with the box landingposition in the vertical direction, and therefore the correction amount on the heavy object in the box landing step can be greatly reduced, and the loading and unloading efficiency is remarkably improved.

Description

technical field [0001] The invention relates to the field of cargo loading and unloading, in particular to an automatic loading and unloading method for a shore bridge. Background technique [0002] Quay crane, also known as quayside container crane, is the key equipment for loading and unloading containers on the wharf, and its loading and unloading efficiency directly affects the throughput capacity of the wharf. Due to the special geographical location of the wharf (coast or river), the quay crane is often in the working environment of strong wind. Under the action of wind load, the spreader and / or container suspended under the quay crane trolley will have a large deflection. put. In order to ensure accurate packing, the deflection must be reduced to the allowable range during the packing process. If the deflection caused by the strong wind is large, the process of reducing the deflection will be relatively long, which will affect the efficiency of the box. [0003] Th...

AI Technical Summary

Problems solved by technology

However, in each working cycle of the double-trolley quay crane, the number of loading and unloading of the double-trolley quay crane is twice that of the single-car quay crane. influences

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