The present invention provides a hydraulic leveling system for a chassis of a traveling tower crane, the hydraulic leveling system comprising: a motor-hydraulic pump mechanism comprising a motor and a hydraulic pump, the motor driving the hydraulic pump to supply oil to a plurality of cylinders; the plurality of oil cylinders are respectively connected with each supporting leg of the walking type tower crane chassis so as to provide supporting force, and each oil cylinder comprises a rodless cavity and a rod cavity; the plurality of electromagnetic stop valves are opened or closed, so that the plurality of oil cylinders are switched between a communication state in which the rodless cavities are communicated with one another and the rod cavities are communicated with one another and a cut-off state in which the rodless cavities are not communicated with one another and the rod cavities are not communicated with one another; and a plurality of master control valves connected between the motor-hydraulic pump mechanism and the plurality of cylinders, the plurality of master control valves having a cylinder single-action position and a cylinder communication position, the plurality of master control valves conducting the pressure oil, closing the plurality of electromagnetic shut-off valves, and switching off the cylinders when the plurality of master control valves are located at the cylinder single-action position, and blocking the pressure oil when the plurality of master control valves are located at the cylinder communication position, and the plurality of master control valves closing the plurality of electromagnetic shut-off valves and switching off the cylinders when the plurality of master control valves are located at the cylinder communication position. And when the electromagnetic stop valves are opened, the oil cylinders are in a communication state.

    本发明提供行走式塔机底架的液压调平系统,具备:电动机‑液压泵机构,由电动机和液压泵构成,通过电动机带动液压泵而向多个油缸供油;多个油缸,分别与行走式塔机底架的各个支腿连接以提供支承力,且包括无杆腔和有杆腔;多个电磁截止阀,通过打开或关闭,使多个油缸之间在无杆腔之间且有杆腔之间相互连通的连通状态与无杆腔之间且有杆腔之间不连通的切断状态之间切换;以及多个主控阀,连接于电动机‑液压泵机构与多个油缸之间,多个主控阀具有油缸单动位置和油缸连通位置,在位于油缸单动位置时,将压力油导通,多个电磁截止阀关闭,油缸之间成为切断状态,在位于油缸连通位置时,将压力油遮断,多个电磁截止阀打开,油缸之间成为连通状态。


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    Titel :

    Hydraulic leveling system of walking type tower crane chassis


    Weitere Titelangaben:

    行走式塔机底架的液压调平系统


    Beteiligte:
    MI CHENGHONG (Autor:in) / SONG FENGWEI (Autor:in) / ZHENG HUAIPENG (Autor:in) / ZHONG YAOWEI (Autor:in) / ZHAO YUXIANG (Autor:in) / SHI HAORAN (Autor:in) / MUNEMASA (Autor:in)

    Erscheinungsdatum :

    2023-08-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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