To provide a semi-submersible type crane for assembling a floating type offshore wind power generation facility on the sea, especially a semi-submersible type crane capable of stably working while suppressing its oscillation when lifting heavy objects.SOLUTION: A semi-submersible type crane 1 comprises a crane 3 on a deck surface of a semi-submersible type floating body 6 configured to include multiple columns 10 as a floating body, and a connecting member 11 that connects these columns 10 to each other. The semi-submersible type crane installs a mobile counterweight device 4 on the deck surface of the semi-submersible type crane. The mobile counterweight device 4 can be moved in any direction by installing a travel part on the bottom surface of a weight 18, provides winches 19A-19D on four corners, connects wire ropes 20a-20d paid out from the winches 19A-19D to the weight 18, and controls the movement of the weight 18 to a prescribed position by operating the winches 19A-19D.SELECTED DRAWING: Figure 1

    【課題】浮体式洋上風力発電設備を洋上で組立てするためのセミサブ型クレーンに係り、特に重量物を吊り下げた際の動揺を抑えて安定的に作業を行い得るようにしたセミサブ型クレーンを提供する。【解決手段】浮力体となる複数本のカラム10と、これらカラム10を相互に連結する連結材11とを含んで構成されたセミサブ型浮体6のデッキ面にクレーン3を備えたセミサブ型クレーンにおいて、前記セミサブ型クレーン1のデッキ面に移動式カウンターウエイト装置4を設備する。前記移動式カウンターウエイト装置4は、ウエイト18の下面に走行部を設けることにより任意方向に移動可能とし、四隅にウインチ19A~19Dを配置し、ウインチ19A~19Dから繰り出したワイヤー20a~20dをウエイト18に連結し、前記ウインチ19A~19Dの操作によって前記ウエイト18を所定の位置に移動制御するようにした装置とする。【選択図】図1


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    Title :

    SEMI-SUBMERSIBLE TYPE CRANE


    Additional title:

    セミサブ型クレーン


    Contributors:

    Publication date :

    2025-01-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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