A crank arm leveling structure for a crank arm type aerial work platform car comprises a rotary base, a parallelogram lifting set connected to the rotary base, a leveling crank arm set connected withthe parallelogram lifting set, a parallelogram lifting arm connected with the leveling crank arm set, and a lifting platform connected to the front end of the parallelogram lifting arm. The parallelogram lifting set comprises a first horizontal movement connecting block. The parallelogram lifting arm comprises a second horizontal movement connecting block. The leveling crank arm set comprises a crank arm, a lifting oil cylinder, a passive leveling oil cylinder and an active leveling oil cylinder. The crank arm is hinged between the first horizontal movement connecting block and the second horizontal movement connecting block. The lifting oil cylinder is hinged between the lower portion of the middle of the crank arm and the first horizontal movement connecting block to lift the crank arm.The passive leveling oil cylinder is hinged between the lower portion of the end, close to the first horizontal movement connecting block, of the crank arm and the first horizontal movement connectingblock. The active leveling oil cylinder is hinged between the lower portion of the end, close to the second horizontal movement connecting block, of the crank arm and the second horizontal movement connecting block.

    一种曲臂式高空作业平台车曲臂调平结构,包括旋转底座、连接于旋转底座上的平行四边形提升组、与平行四边形提升组连接的调平曲臂组、与调平曲臂组连接的平行四边形提升臂以及连接于平行四边形提升臂前端的升降平台;平行四边形提升组包括第一平移连接块,平行四边形提升臂包括第二平移连接块,调平曲臂组包括曲臂、提升油缸、被动调平油缸和主动调平油缸;曲臂铰接于第一平移连接块和第二平移连接块之间,提升油缸铰接于曲臂中间位置下方与第一平移连接块之间对曲臂进行提升,被动调平油缸铰接于曲臂接近第一平移连接块一端下方与第一平移连接块之间,主动调平油缸铰接于曲臂接近第二平移连接块一端下方与第二平移连接块之间。


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    Titel :

    Crank arm leveling structure for crank arm type aerial work platform car


    Weitere Titelangaben:

    一种曲臂式高空作业平台车曲臂调平结构


    Beteiligte:
    XU SHUGEN (Autor:in)

    Erscheinungsdatum :

    2020-04-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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