A multi-stage hydraulic cylinder device capable of being adjusted in a floating mode and a forklift truck comprise a cylinder barrel, a sleeve is arranged in the cylinder barrel, the sleeve is provided with a sealing piece, the sleeve, the cylinder barrel and the sealing piece form a first-stage piston hydraulic cylinder device, one end of the sleeve is sealed, a piston rod is arranged in the sleeve, the piston rod and the sleeve form a second-stage hydraulic cylinder device, and a first-stage rod cavity is communicated with a second-stage rodless cavity. And the tail part of the piston rod is connected with a rod body lug ring, and the rod body lug ring is connected with the shovel plate end. According to the multi-stage hydraulic cylinder device capable of being adjusted in a floating mode and the forklift, two stages of oil ways are arranged, isolation of the two stages of oil ways is achieved through the positioning plug, and the positioning function is provided when the second-stage rod body is fully retracted; by means of the two-stage plunger type oil way design, the rod body can be adjusted in a floating mode according to different external force; through the floating adjusting function, the requirement for operation on flat and bumpy ground can be met.

    一种可浮动调节的多级液压缸装置及铲车,包括缸筒,缸筒内设有套筒,套筒设有密封件,套筒、缸筒和密封件形成一级活塞液压缸装置,套筒的一端密封,套筒内设有活塞杆,活塞杆与套筒形成二级液压缸装置,一级有杆腔与二级无杆腔相通,二级无杆腔和二级有杆腔相通,活塞杆的尾部连接有杆体耳环,杆体耳环与铲板端连接在一起。本发明的一种可浮动调节的多级液压缸装置及铲车,设有两级油路,通过定位堵实现两级油路隔离,并提供二级杆体全收回时的定位功能;通过二级柱塞式油路设计,可实现杆体根据外力不同进行浮动调整;通过浮动调节功能,可满足平坦和坑洼不平地面运行的要求。


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    Title :

    Multistage hydraulic cylinder device capable of being adjusted in floating mode and forklift


    Additional title:

    一种可浮动调节的多级液压缸装置及铲车


    Contributors:
    LIANG CHEN (author) / LIU PENG (author) / DAI HONGXU (author) / LIN YANPU (author)

    Publication date :

    2025-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / 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 / F16J Kolben , PISTONS



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