The present invention provides an overload preventing device which, while ensuring safety, allows maximum utilization of lifting performance of a work machine depending on the operating state. This overload preventing device is mounted on a mobile work machine, and is provided with: a storage unit which stores lifting performance data in which lifting performance is configured for each operation state, and performance region data in which switching angles are configured that define performance regions, including a front region, a back region, and a side region; and a work machine control unitwhich controls operation of the mobile work machine on the basis of the actual load and the lifting performance corresponding to the present operation state of the mobile work machine. A third liftingperformance configured for a transition region, a first switching angle defining the boundary between the front region and the side region and the boundary between the back region and the side regionwhen the outriggers are in different states of deployment, and a second switching region defining a transition region in the side region are configured on the basis of stability calculations and strength factors such as jack strength.

    本发明提供过负载防止装置,能够确保稳定性,并且能够根据作业状态最大限度地利用作业机的吊起性能。过负载防止装置被搭载于移动式作业机,具有:存储部,其存储吊起性能数据和性能区域数据,该吊起性能数据按每个作业状态而设定有吊起性能,该性能区域数据设定有规定包括前方区域、后方区域、侧方区域的性能区域的切换角度;以及作业机控制部,其根据与所述移动式作业机的当前的作业状态对应的所述吊起性能和实际负载,控制移动式作业机的动作。对于迁移区域设定的第三吊起性能、在支腿处于不同外伸状态的情况下规定前方区域与侧方区域的边界和后方区域与侧方区域的边界的第一切换角度、规定侧方区域的迁移区域的第二切换角度是基于稳定度计算和起重强度等强度因素而设定的。


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    Titel :

    OVERLOAD PREVENTING DEVICE


    Weitere Titelangaben:

    过负载防止装置


    Beteiligte:

    Erscheinungsdatum :

    10.04.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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