The invention discloses a working bucket leveling control system and method and an overhead working truck, the working bucket leveling control system comprises a pilot control system responsible for accurately transmitting angle changes and a power driving system responsible for working bucket leveling, the pilot control system comprises two swing cylinders, one swing cylinder is connected with a lower hinge point of an arm body, and the other swing cylinder is connected with a lower hinge point of an arm body. The swing cylinder is connected with an upper hinge point of the arm body, the arm body drives the swing cylinder at a lower hinge point to discharge oil when acting, oil enters the swing cylinder connected with the upper hinge point of the arm body, a valve element of the servo valve is driven to move, the servo valve is opened, the leveling oil cylinder is driven, the leveling oil cylinder drives the working bucket, and rotation of the working bucket is fed back to a valve body of the servo valve; and when the rotation angle of the working bucket is the same as that of the swing cylinder of the upper hinge point, the servo valve is closed, and the leveling action is completed. The device has the advantages of being high in leveling precision and fast in response, and meanwhile the stress problem of the arm body can be solved.

    本发明公开了一种工作斗调平控制系统、方法及高空作业车,所述工作斗调平控制系统包括负责精确传递角度变化的先导控制系统和负责工作斗调平的动力驱动系统,先导控制系统包括两个摆动缸,一个与臂体下铰点连接,一个与臂体上铰点连接,臂体动作时带动下铰点处的摆动缸排油,油液进入与臂体上铰点连接的摆动缸内,带动伺服阀阀芯运动,伺服阀打开,驱动调平油缸,调平油缸驱动工作斗,工作斗转动反馈给伺服阀阀体,当工作斗转动角度与上铰点的摆动缸转动角度相同时,伺服阀关闭,调平动作完成。本发明具有调平精度高、响应快的优点,同时能够改善臂体受力问题。


    Access

    Download


    Export, share and cite



    Title :

    Working bucket leveling control system and method and overhead working truck


    Additional title:

    一种工作斗调平控制系统、方法及高空作业车


    Contributors:
    QIN CHANGJIAN (author) / SHANG XIAOHENG (author) / REN LUYAO (author) / CHEN LEI (author) / SUN YAO (author) / YU XUAN (author) / JIAO JIAWEI (author)

    Publication date :

    2024-10-01


    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



    Quadruple leveling system for working bucket of overhead working truck

    LI JIANGUO / DANG NA / JIN ZHANGJUN et al. | European Patent Office | 2025

    Free access

    Leveling control system of overhead working truck and overhead working truck

    SHANG XIAOHENG / LI YANGYANG / REN LUYAO et al. | European Patent Office | 2024

    Free access

    Large-height overhead working truck leveling system and control method

    LI KUN / YANG ZHIQIANG / LIU HANGYU et al. | European Patent Office | 2024

    Free access

    Method for expanding working range of working bucket of overhead working truck

    MAO LIWU / CHEN XIAOFENG / ZHANG RENMIN et al. | European Patent Office | 2022

    Free access

    Hydraulic leveling device, hydraulic leveling method and overhead working truck

    XUE DESEN / SUN YONGGUANG / YU MENGSHENG et al. | European Patent Office | 2024

    Free access