The forklift hydraulic system comprises a hydraulic oil tank, the hydraulic oil tank is communicated with a duplex gear pump, and the oil outlet end of the duplex gear pump is connected with a priority steering oil way and a power-assisted braking oil way; the priority steering oil way comprises a multi-way control valve, and a hydraulic power-assisted valve, a lifting oil cylinder and an inclined oil cylinder which are connected to the rear end of the multi-way control valve; the power-assisted brake oil way comprises a full-hydraulic power-assisted brake valve block and an energy accumulator prefill valve block which are connected in sequence, the full-hydraulic power-assisted brake valve block comprises a second diverter valve, the oil inlet end of the second diverter valve is communicated with the duplex gear pump, the oil outlet end of the second diverter valve is connected with a reversing valve, and the oil outlet ends of the energy accumulator prefill valve block and the reversing valve are connected with a service brake. The energy accumulator prefill valve block comprises an energy accumulator communicated with the second diverter valve, the energy accumulator is connected with a parking brake, and the functions of system energy saving, steering priority, loading and unloading safety protection, full-hydraulic power-assisted braking and parking brake release can be achieved.

    本发明公开了一种叉车液压系统,包液压油箱,液压油箱连通有双联齿轮泵,双联齿轮泵的出油端连接优先转向油路、助力制动油路;优先转向油路包括多路控制阀以及连接于多路控制阀后端的液压助力阀、升降油缸、倾斜油缸;助力制动油路包括依次连接的全液压助力制动阀块、蓄能器充液阀块,全液压助力制动阀块包括第二分流阀,第二分流阀的进油端与双联齿轮泵连通,第二分流阀的出油端连接有换向阀、蓄能器充液阀块,换向阀的出油端连接有行车制动器,蓄能器充液阀块包括与第二分流阀连通的蓄能器,蓄能器连接有停车制动器,本发明能满足系统节能、转向优先、装卸安全保护、全液压助力制动、停车制动解除的功能。


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    Titel :

    Forklift hydraulic system


    Weitere Titelangaben:

    一种叉车液压系统


    Beteiligte:
    YU JIANFU (Autor:in) / CHEN ZENG (Autor:in) / YE FEI (Autor:in) / MA NING (Autor:in) / ZHAO FEI (Autor:in) / ZHU JIANXIONG (Autor:in) / CHEN XIUYUN (Autor:in) / WU CHUANYANG (Autor:in)

    Erscheinungsdatum :

    2023-09-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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