基于ANSYS的悬臂式掘进机回转机构的优化研究

Research on Optimization of Rotating Mechanism of Cantilever Roadheader Based on ANSYS

针对悬臂式掘进机回转机构由于在工作中需要承受截割机构传递的频繁的冲击载荷的作用而极易发生断裂、变形、卡顿等异常情况,通过对掘进机执行截割作业时回转机构的受力分析,提出了对回转机构的优化方案,并利用ANSYS仿真分析软件对优化后的回转机构进行了仿真分析,结果表明优化后的掘进机回转机构受冲击情况下的最大应力约为151.14 MPa,其最大应变仅为0.42 mm,应力集中程度和变形量均比现有结构有了显著的下降,极大的提升了掘进机工作时的可靠性和稳定性,确保了煤矿井下巷道的掘进效率。

The rotary mechanism needs to bear the frequent impact load transmitted by the cutting mechanism in its work.In this paper,based on the force analysis of the rotating mechanism when the roadheader is cutting,the return is put forward.The optimization scheme of the rotating mechanism is simulated and analyzed by using the ANSYS simulation analysis software.The results show that the maximum stress of the optimized rotary mechanism under the condition of impact is about 151.14 MPa,and the maximum strain is only 0.42 mm.The stress concentration degree and the deformation amount are significantly reduced compared with the prior art,so that the reliability and the stability of the working of the heading machine are greatly improved,and the tunneling efficiency of the coal mine underground roadway is ensured.