An overload preventing device is provided which, while ensuring safety, allows maximal utilization of lifting performance of a work machine depending on operation 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 unit which 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. The lifting performance includes a maximum deployment width performance configured for the front region and the back region, and the switching angles are configured for each operation state on the basis of stability calculations and strength factors such as jack strength.
本发明公开一种过载保护装置,能够确保稳定性并能够根据作业状态最大限度地利用作业机的起重性能。过载保护装置搭载于移动式作业机,具备:存储部,其存储针对每个作业状态设定有起重性能的起重性能数据和设定有用于对包含前方区域、后方区域以及侧方区域的性能区域作出规定的切换角度的性能区域数据;以及作业机控制部,其基于移动式作业机的当前作业状态所对应的起重性能和实际负载,控制移动式作业机的动作。起重性能包括针对前方区域和后方区域设定的最大伸出幅度性能,切换角度是针对每个作业状态基于稳定度计算和起重器强度等强度因素而设定的。
OVERLOAD PREVENTING DEVICE
过载保护装置
2020-04-10
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |