打卡“长征”路线的无碳小车结构及轨迹仿真设计  

Carbon-free Car Structure and Trajectory Simulation Design for Clocking the"Long March"Route

作　　者：周彦博 罗强 张益维 王鲸宇 封钦 王迎胜 Zhou Yanbo;Luo Qiang;Zhang Yiwei;Wang Jingyu;Feng Qin;Wang Yingsheng(School of Mechanical Engineering,Chongqing Three Gorges University,Chongqing 404100,China;Chongqing Engineering Research Center for Advanced Intelligent Manufacturing Technology,Chongqing 404100,China;Chongqing Engineering Technology Research Center for Light Alloy and Processing,Chongqing 404100,China)

机构地区：[1]重庆三峡学院机械工程学院,重庆404100 [2]智能制造先导技术重庆市高校工程研究中心,重庆404100 [3]重庆市轻合金材料与加工工程技术研究中心,重庆404100

出　　处：《机械传动》2024年第5期75-82,共8页Journal of Mechanical Transmission

基　　金：重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0143);重庆市教委科技项目(KJZD-K202101203)。

摘　　要：根据2022年中国大学生工程实践与创新能力大赛要求,设计并制作了一台能打卡指定轨迹点(模拟长征路线)的自走式势能驱动车。运用SolidWorks的贝塞尔曲线,绘制经过特定轨迹点的拟合曲线;利用Matlab对拟合曲线进一步优化与仿真,从而获得满足设计要求的凸轮轮廓;创新运用SolidWorks逆向建模方法,设计弧面凸轮转向机构,配合激光打点微调机构,以提高小车运行轨迹精度和重复性;利用SoildWorks建立无碳小车的三维模型并对其结构进行了分析。小车运行结果表明,小车行走轨迹重复性好,能打卡指定的所有轨迹点。According to the requirements of the 2022 China College Students Engineering Practice and In-novation Ability Competition,a self-propelled potential energy drive vehicle that can punch in designated trajec-tory points(simulating the Long March route)is designed and produced.The SolidWorks'Bezier curve is used to draw the fitted curve through a specific trajectory point.The fitting curve is further optimized and simulated by Matlab to obtain the cam profile that meets the design requirements.Combined the with laser dot fine-tuning mechanism,the SolidWorks reverse modeling method is used innovatively,the arc cam steering mechanism is designed,to improve the accuracy and repeatability of the car running trajectory.Finally,SoildWorks is used to establish a three-dimensional model of the carbon-free car and analyze its structure.The running results of the car show that the car walking trajectory has good repeatability and can punch all the specified trajectory points.

关 键 词：无碳小车 凸轮设计 轨迹仿真 工创竞赛 

分 类 号：TH122[机械工程—机械设计及理论]