The invention relates to a forklift gantry control method and device, and relates to the technical field of forklift hoisting systems. The method comprises the steps that a forward and backward moving handle potentiometer output signal C1 and a fork lifting height signal C2 are detected, H = Hmax * C2/5, H represents the lifting height of the fork, and Hmax represents the maximum lifting height of the fork of the high-position operation forklift; comparing the C1 with a voltage threshold value to obtain a comparison result, judging whether the C1 is changed from small to large or from large to small to obtain a first judgment result, and judging whether H is smaller than or equal to a height threshold value to obtain a second judgment result; and based on the comparison result, the first judgment result and the second judgment result, an oil pump motor, a front-back moving proportional valve electromagnet m1, a front-back moving proportional valve electromagnet m2, the closing speed of a front moving proportional valve and the closing speed of a rear proportional valve are correspondingly controlled. The front and back movement stopping impact of the portal frame is small, the whole vehicle shakes little, and high-position operation safety is guaranteed.

    本公开涉及一种叉车门架控制方法及装置,涉及叉车起重系统技术领域。其中,该方法包括:检测前后移手柄电位器输出信号C1和货叉起升高度信号C2,其中,H=Hmax*C2/5,H表示货叉起升高度,Hmax表示高位作业叉车货叉最大起升高度;将C1与电压阈值进行比对,得到比对结果,且判断C1是由小变大还是由大变小,得到第一判断结果,以及判断H是否小于等于高度阈值,得到第二判断结果;基于比对结果、第一判断结果、以及第二判断结果,对油泵电机、前后移比例阀电磁铁m1、前后移比例阀电磁铁m2、前移比例阀关闭速度、后比例阀关闭速度进行相应控制。本公开使得门架前后移停止冲击小,整车晃动小,确保高位作业安全。


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    Title :

    Forklift mast control method and device


    Additional title:

    叉车门架控制方法及装置


    Contributors:
    BAI YINGCHUN (author) / ZHANG KEJUN (author) / JIANG YING (author) / SHENG HUAJIAN (author) / XU LILI (author) / WANG JIE (author) / ZHUO NALIN (author)

    Publication date :

    2024-04-26


    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 / F16K VALVES , Ventile



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