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针对中小吨位履带式起重机改造而成的强夯机,采用自由落体方式突然释放夯锤,由于臂架和变幅系统储能释放,易导致臂架俯仰剧烈,整车倾翻。本文利用虚拟仿真技术建立刚柔耦合模型,对突然释放夯锤时,臂架防后倾的受力进行动力学分析。总结不同的臂架长度、防后倾弹簧参数以及防后倾开始作用角度对臂架防后倾以及整机性能的影响规律,为强夯机防后倾设计提供一定的参考依据。
For small and medium tonnage crawler cranes from the transformation of the tamping machine, the use of free-fall suddenly released rammer, as the boom and luffing system energy release, easy to cause jib pitch pitching, vehicle dumping. In this paper, the rigid-flexible coupling model is established by using the virtual simulation technology, and the dynamic analysis of the anti-back-tilting force of the boom when the rammer is suddenly released is analyzed. The influences of different boom length, anti-roll spring parameters and the anti-dumping start angle on the anti-rollback performance and overall performance of the boom are summarized. This will provide some references for the ram design of the tamping machine.