The invention discloses a rope loosening detection method and device for a lifting rope of a lifting mechanism, a frequency converter and the lifting mechanism, and is applied to the technical field of automatic control. According to the method, a plurality of current output torque values of a frequency converter of the lifting mechanism are obtained in real time, and the relation between each current output torque value and a rope loosening output torque value interval is determined, namely whether each current output torque value is located in the rope loosening output torque value interval or not is determined. And if the situation that the current output torque values are located in the rope loosening output torque value interval meets the preset requirement, it is judged that the lifting mechanism is in the rope loosening state. By comparing the current output torque value with the rope loosening output torque value interval, the rope loosening state of the lifting mechanism can be detected no matter whether the frequency converter is reduced from the higher output torque to the output torque in the rope loosening state or increased from the lower output torque to the output torque in the rope loosening state, so that the judgment result is more accurate, and the reliability of the lifting mechanism is improved. And the applicability is higher, so that the safety of the lifting mechanism during operation is improved.

    本申请公开了一种提升机构吊绳的松绳检测方法、装置、变频器及提升机构,应用于自动化控制技术领域。该方法实时获取提升机构的变频器的多个当前输出转矩值,并确定各当前输出转矩值与松绳输出转矩值区间的关系,即各当前输出转矩值是否位于松绳输出转矩值区间内。若各当前输出转矩值位于松绳输出转矩值区间的情况满足预设要求,则判定提升机构处于松绳状态。通过比较当前输出转矩值与松绳输出转矩值区间,不论是变频器从更高的输出转矩降低到松绳状态下的输出转矩,或是从较低的输出转矩升高到松绳状态下的输出转矩,都能将提升机构的松绳状态检测出来,使得判定结果更加准确,适用性更强,进而提高了提升机构运行时的安全性。


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    Titel :

    Rope loosening detection method and device for lifting rope of lifting mechanism, frequency converter and lifting mechanism


    Weitere Titelangaben:

    提升机构吊绳的松绳检测方法、装置、变频器及提升机构


    Beteiligte:
    LI CHENDONG (Autor:in)

    Erscheinungsdatum :

    28.11.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66D Haspeln , CAPSTANS



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