双螺旋推进式行走机构设计与仿真  

Design and simulation of double screw-propelled walking mechanism

作　　者：何恩光 高猛 HE Enguang;GAO Meng(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang 110168,Liaoning,China;School of Mechanical Engineering and Automation,Shenyang Institute of Technology,Fushun 113006,Liaoning,China)

机构地区：[1]沈阳建筑大学机械工程学院,辽宁沈阳110168 [2]沈阳工学院机械工程与自动化学院,辽宁抚顺113006

出　　处：《中国工程机械学报》2025年第1期72-76,82,共6页Chinese Journal of Construction Machinery

基　　金：沈阳工学院2023年科教融合青年骨干教师科研基金(QN202301)。

摘　　要：针对履带式或轮式工程机械在沙漠生态修复工程作业中存在的陷沙、打滑、故障率高等行进难题,以及设备小型化趋势,设计了一种应用于沙地环境的双螺旋推进式行走机构,分析了接地比压的影响因素以及行走机构的机动性能。运用Abaqus软件的CEL流固耦合分析方法,仿真了接地情况、行走状态与行走速率。仿真结果表明:沙地体积平均应力仿真结果为7.38 kPa,与接地比压的理论计算值7.53 kPa接近;螺距对推进速度影响较大;螺旋叶片高度对沉陷量影响较大;螺旋滚筒直径对推进速度的影响较小。样机测试和仿真结果验证了双螺旋推进式行走机构在沙地良好的适用性和通过性能。In view of the problems of sand subsidence,slippage,high failure rate and equipment miniaturization of tracked or wheeled construction machinery in desert ecological restoration engineering,a double screw-propelled walking mechanism applied in sandy environment was designed,and the influencing factors of ground pressure and the mobile performance of the walking mechanism were analyzed.The ground condition,traveling state and traveling speed were simulated by CEL fluid-structure coupling analysis method of Abaqus software.The simulation results show that the simulation result of sand volume average stress is 7.38 kPa,which is close to the theoretical calculation value of ground pressure 7.53 kPa.Pitch has great influence on propulsion speed.The height of screw blade has great influence on the sinkage.The diameter of screw drum has little influence on the propulsion speed.The results of prototype test and simulation verify the good applicability and passing performance of the double screw-propelled walking mechanism in sandy land.

关 键 词：双螺旋推进 行走机构 流固耦合 接地比压 

分 类 号：TH133.33[机械工程—机械制造及自动化]