The invention provides an anti-back-tipping control method and system for hoisting mechanical equipment and the hoisting mechanical equipment, and belongs to the technical field of cranes. The methodcomprises the steps that target anti-back-tipping force F1 of an anti-back-tipping hydraulic oil cylinder, the rodless cavity pressure parameter P1 of the current anti-back-tipping hydraulic oil cylinder and the rod cavity pressure parameter P2 of the current anti-back-tipping hydraulic oil cylinder are obtained; according to the rodless cavity pressure parameter P1 and the rod cavity pressure parameter P2, the actual anti-back-tipping force F currently provided by the anti-back-tipping hydraulic oil cylinder is calculated; under the condition that the actual anti-back-tipping force F is not equal to the target anti-back-tipping force F1, according to the target anti-back-tipping force F1 and the rod cavity pressure parameter P2, target adjusting current Ix of an electricproportional overflow valve communicating with a rodless cavity of the anti-back-tipping hydraulic oil cylinder is calculated; and the overflow pressure of the electric proportional overflow valve isadjusted based on the target adjusting current Ix so as to adjust the anti-back-tipping force provided by the anti-back-tipping hydraulic oil cylinder until the anti-back-tipping force is equal to the target anti-back-tipping force F1.

    本发明提供一种起重机械设备的防后倾控制方法、系统和起重机械设备,属于起重机技术领域。所述方法包括:获取防后倾液压油缸的目标防后倾力F1、当前防后倾液压油缸的无杆腔压力参数P1和有杆腔压力参数P2;根据无杆腔压力参数P1和有杆腔压力参数P2,计算防后倾液压油缸当前提供的实际防后倾力F当前;在实际防后倾力F当前与目标防后倾力F1不相等的情况下,根据目标防后倾力F1和有杆腔压力参数P2,计算与防后倾液压油缸的无杆腔连通的电比例溢流阀的目标调节电流Ix;基于目标调节电流Ix调节电比例溢流阀的溢流压力,从而调节防后倾液压油缸提供的防后倾力,直到防后倾力等于目标防后倾力F1。


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    Title :

    Anti-back-tipping control method and system for hoisting mechanical equipment and hoisting mechanical equipment


    Additional title:

    起重机械设备的防后倾控制方法、系统和起重机械设备


    Contributors:
    ZHANG YUAN (author) / LIU JIANHUA (author) / HUANG ZAN (author) / SHANG YOUDONG (author) / SHEN CHANGWU (author)

    Publication date :

    2021-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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