【摘要】 凿岩台车井下作业工作环境苛刻,推进器部件易出现疲劳损坏,有必要对台车推进器受载情况进行分析研究。首先以某一型号凿岩台车为例,利用有限元软件ANSYS Workbench对正常工作状况下凿岩台车推进器进行有限元分析,得出推进器鞍架处存在显著应力集中现象的结论。然后对推进器存在显著应力集中的部件进行了相应的优化设计,优化后推进器鞍架显著应力集中现象得到改善。最后对推进器系统进行了振动模态分析,得到了系统的各阶固有频率,为整个台车系统力学性能的改善与优化提供了理论依据。更多还原

【Abstract】 Drilling rig feeder is working in harsh conditions,and propeller parts are easy to appear fatigue damage. It is necessary to trolley propeller loads analysis. Taking a certain type drill rig as an example,it uses the finite element software ANSYS Workbench to carry out finite element analysis for drill rig feeder in normal operating conditions,analyzes the significant stress concentration on the feeder saddle,obtains the system significant stress concentration of the components. Based on above results,it optimizes the design,avoids the significantly stress concentration phenomenon. It analyzes the vibration modal of the feeder,obtaines the natural frequencies of the system,provides a theoretical basis for the improvement and optimization of mechanical properties of the entire vehicle system.更多还原