The invention provides an anti-top-rushing method, an anti-top-rushing protection system and a crane. The method comprises the following steps: detecting a first distance value of a distance between a trolley and a lifting hook through a first detection system; a second distance value of the distance between the trolley and the lifting hook is detected through a second detection system, the second detection system comprises a cam limiting stopper, and the first detection system and the second detection system are different; and controlling the motion state of the lifting hook according to the first distance value and the second distance value. According to the embodiment of the invention, the possibility of lifting hook top rushing accidents can be reduced.

    本发明提供一种防冲顶方法、防冲顶保护系统及起重机,所述方法包括以下步骤:通过第一检测系统检测小车和吊钩之间距离的第一距离值;通过第二检测系统检测所述小车和所述吊钩之间距离的第二距离值,其中,所述第二检测系统包括凸轮限位器,所述第一检测系统和所述第二检测系统不同;根据所述第一距离值和所述第二距离值控制所述吊钩的运动状态。本发明实施例能够降低吊钩冲顶事故发生的可能性。


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    Title :

    Top rushing prevention method, top rushing prevention protection system and crane


    Additional title:

    防冲顶方法和防冲顶保护系统及起重机


    Contributors:
    MIAO SIYI (author)

    Publication date :

    2023-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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