PROBLEM TO BE SOLVED: To prevent, in a lifting and slewing control device, diffusion of dust adhered to iron frames or covers ahead of a slewing direction of the lifting and slewing control device.SOLUTION: A lifting and slewing control device 20 comprises a slewing tool 11, blowers 2 provided on axial ends 11a, 11b of the slewing tool 11, a hook block 5 supporting the axial center part of the slewing tool 11, and power generators 3 driving the blowers 2. The blower 2 blows an air flow from the axial end 11a/11b of the slewing tool 11, and the blowing direction of the air flow is changeable between the vertical direction and a first horizontal direction which is orthogonal to the axial direction of the slewing tool 11 in the horizontal direction.SELECTED DRAWING: Figure 2

    【課題】揚重旋回制御装置において、該揚重旋回制御装置の旋回方向の先の鉄骨やカバーに付着した粉塵の拡散を防止する。【解決手段】旋回治具11と、旋回治具11の軸方向端部11a,11bに設けられた送風機2と、旋回治具11の軸方向中央部を支持するフックブロック5と、送風機2を駆動する発電機3と、を備え、送風機2は旋回治具11の軸方向端部11a/11bから空気流を吹き出し、前記空気流の吹き出し方向は鉛直方向と水平方向において旋回治具11の軸方向に直交する第一水平方向との間で可変可能とされている揚重旋回制御装置20。【選択図】図2


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    Title :

    LIFTING AND SLEWING CONTROL DEVICE


    Additional title:

    揚重旋回制御装置


    Contributors:

    Publication date :

    2017-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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