The invention relates to the technical field of cranes, in particular to an energy-saving hydraulic device and hydraulic hoisting equipment with the same. The hydraulic hoisting equipment comprises acrane truck, wherein a seat is fixed to the upper surface of the crane truck, a lumbar support assembly is fixed to the upper surface of the chair, a support frame is fixed to one side away from the seat, of the outer surface of the crane truck through bolts, a connecting plate is movably connected to the inner side of the support frame, a fork is fixed to one end being departed from the support frame, of the connecting plate through bolts, a power recovery oil cylinder assembly is assembled at one end being departed from the fork, of the connecting plate, and comprises a first cylinder barrel, a fixed bottom cover is fixed to the bottom end of the first cylinder barrel through bolts, and the lower surface of the fixed bottom cover is fixedly connected with the inner wall of the support frame through bolts. According to the energy-saving hydraulic device and the hydraulic hoisting equipment, multiple-section hydraulic energy recovery oil cylinders are arranged, so that the telescopic process of the hydraulic oil cylinder can be increased, the entire height of the hydraulic oil cylinder after oil drainage is shortened, power for fork falling is recovered sufficiently, and the effectof energy saving is achieved.

    本发明涉及起重机技术领域,具体为一种节能液压装置及具有其的液压起重设备,包括起重车,所述起重车的上表面固定有座椅,所述座椅的上表面固定有腰托组件,所述起重车的外表面远离座椅的一侧通过螺栓固定有支撑架,所述支撑架的内侧活动连接有连接板,所述连接板背离支撑架的一端通过螺栓固定有货叉,所述连接板背离货叉的一端装配有动力回收油缸组件,所述动力回收油缸组件包括第一缸筒,所述第一缸筒的底端通过螺栓固定有固定底盖,且固定底盖的下表面通过螺栓与支撑架的内壁固定连接。本发明具有多节液压能回收油缸,提高液压油缸伸缩进程,缩减液压油缸的排油后的整体高度,对货叉下降的功充分回收,更加节能。


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    Title :

    Energy-saving hydraulic device and hydraulic hoisting equipment with same


    Additional title:

    一种节能液压装置及具有其的液压起重设备


    Contributors:
    YANG HAOWEI (author) / GONG XU (author) / ZHANG ZIXIN (author) / XU GUANGZE (author) / YU JIAQI (author)

    Publication date :

    2020-10-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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