To provide a quay crane capable of simultaneously performing a hoisting operation of a hanging tool and a traversing operation of a trolley while reducing the motor capacity, and shortening a cargo handling cycle.SOLUTION: A quay crane 1 comprises four drums D1 to D4 and four motors M1 to M4 that rotate each drum, in which the traversing operation of a trolley 7 traversing over a girder and the hoisting operation of a hanging tool 8 suspended from the trolley are executed by rotating the four drums. The control device that controls the four motors executes a semi-automatic operation mode in which at least the hoisting operation of the hanging tool 8 and the traversing operation of the trolley 7 are automatically executed without the driver's operation, and controls the four motors so that the traversing of the trolley starts within the period when the hoisting speed of the hanging tool 8 is decreasing when the hanging tool 8 is hoisted.SELECTED DRAWING: Figure 2

    【課題】モータの容量の小型化を図りつつ、吊具の巻き上げ動作とトロリの横行動作とを同時に行うことができ、荷役サイクルを短縮することができる岸壁クレーンを提供する。【解決手段】岸壁クレーン1は、4つのドラムD1〜D4と、各々のドラムをそれぞれ回転させる4つモータM1〜M4とを備え、4つのドラムが回転することによって、桁の上を横行するトロリ7の横行動作、及びトロリから吊り下げられた吊具8の巻き上げ動作を実行する岸壁クレーンにおいて、4つのモータを制御する制御装置が、少なくとも吊具8の巻き上げ動作およびトロリ7の横行動作を運転者の操作なしに自動的に実行する半自動運転モードを実行するとともに、吊具8の巻き上げ時における吊具8の巻き上げ速度が減少している期間内にトロリの横行が開始するように4つのモータを制御する。【選択図】図2


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    Title :

    QUAY CRANE


    Additional title:

    岸壁クレーン


    Contributors:

    Publication date :

    2019-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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