The invention discloses a hydraulic control system for an electric forklift. The hydraulic control system comprises an oil pump controller for collecting and controlling the rotating speed of an oil pump motor; the oil pump motor drives a hydraulic pump to guide hydraulic oil into a lifting oil cylinder, a horizontal movement oil cylinder, a lateral movement oil cylinder and an inclined oil cylinder through an electromagnetic multi-way valve; the electromagnetic multi-way valve is connected with a valve controller for controlling the opening degree of all valve elements of the electromagneticmulti-way valve; the hydraulic control system further comprises an intelligent instrument and an intelligent rocker; the intelligent instrument collects movement angle analog signals of the intelligent rocker and transmits the movement angle analog signals to the oil pump controller and the valve controller; and the oil pump controller, the valve controller and the intelligent instrument are connected through CAN buses. The intelligent rocker is adopted for control, the operation comfort degree is high, and the micro-motion performance is good; and combined operation of the hydraulic system CAN be achieved. In addition, the hydraulic system of the forklift is controlled through an electrical system, the operation response is fast, and the system following performance is good.

    本发明公开了一种用于电动叉车液压控制系统,包括采集并控制油泵电机转速的油泵控制器,所述油泵电机驱动液压泵将液压油经电磁多路阀分别导入升降油缸、平移油缸、侧移油缸、倾斜油缸,所述电磁多路阀连接有控制其各路阀芯开口度大小的阀控制器;还包括智能仪表和智能摇杆,所述智能仪表采集智能摇杆的移动角度模拟信号,并输送给油泵控制器和阀控制器;所述油泵控制器、阀控制器与智能仪表两两之间均通过CAN总线连接。本申请采用智能摇杆进行控制,操纵舒适度高,微动性能好;并可实现液压系统的联合操作。另外,本申请通过电气系统对叉车的液压系统进行控制,操纵响应快,系统跟随性好。


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    Title :

    Hydraulic control system and method for electric forklift


    Additional title:

    一种用于电动叉车液压控制系统及控制方法


    Contributors:
    SHENG HUAJIAN (author) / YAO JIA (author) / WANG JIE (author) / ZHANG KEJUN (author)

    Publication date :

    2020-12-29


    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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