The invention discloses an electric proportional control hydraulic system for a reach forklift, which comprises an oil tank, a hydraulic control system and a hydraulic control system, the gear pump is communicated with the oil tank; the oil pump motor is connected with the gear pump and used for driving the gear pump; the multi-way valve group comprises a valve body, a port T of the valve body is communicated with the oil tank, and an oil inlet and a port P are formed in the valve body; a first oil inlet of the inclined/sidesway three-position four-way electromagnetic valve is connected to a port P of the multi-way valve group; the two-position six-way electromagnetic valve is communicated with a first oil outlet of the inclined/sidesway three-position four-way electromagnetic valve; the lateral movement oil cylinder is communicated with a first oil outlet of the two-position six-way electromagnetic valve; and the inclined oil cylinder is communicated with a second oil outlet of the two-position six-way electromagnetic valve. According to the electric proportional control hydraulic system for the reach forklift, through the arrangement of the inclination/lateral movement three-position four-way electromagnetic valve and the two-position six-way electromagnetic valve, pipelines on the portal frame are reduced, and analog quantity input needed for completing lateral movement and inclination is achieved.

    本发明公开了一种前移式叉车电比例控制液压系统,该液压系统包括:油箱,用于储存液压油;齿轮泵,与油箱连通;油泵电机,与齿轮泵连接并用于驱动齿轮泵;多路阀组,多路阀组包括阀体,阀体的T口与油箱连通,阀体内部设有进油口与P口;倾斜/侧移三位四通电磁阀,其第一进油口连接于多路阀组的P口;二位六通电磁阀,与倾斜/侧移三位四通电磁阀的第一出油口连通;侧移油缸,与二位六通电磁阀的第一出油口连通;倾斜油缸,与二位六通电磁阀的第二出油口连通。本申请提供的一种前移式叉车电比例控制液压系统,通过倾斜/侧移三位四通电磁阀与二位六通电磁阀的设置减少了门架上的管路以及完成侧移与倾斜所需要的模拟量输入。


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    Title :

    Electric proportional control hydraulic system of reach forklift


    Additional title:

    一种前移式叉车电比例控制液压系统


    Contributors:
    RUAN JINGXUAN (author) / WANG XUQUAN (author) / YANG LIANG (author) / LEE CHANG-HO (author) / YU FENGBO (author) / YE LUXUAN (author) / JIANG YIJUN (author) / HUANG KUN (author) / TONG CHENGPING (author)

    Publication date :

    2024-08-16


    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



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