摘要
为了提高现有全自动液体处理工作站的工作效率和自动化程度,解决因取样系统自身缺陷而导致工作站精度、适应性低的问题,设计一款可实现多通道之间间距可调、各通道可独立搭载进样器升降的取样系统。确定满足功能需求的整体方案,运用UG/Modeling功能建立模块的三维实体模型,使用ADAMS软件反转法设计符合凸轮导向器运动特性的凸轮轨迹线。通过ADAMS进行模拟实际工况下的运动学仿真,得出通道之间位移变化曲线及最外侧通道的速度变化曲线,仿真结果表明,通道间距由9 mm平稳调节至24 mm,验证了该机构的可行性,对取样系统的优化设计具有重要的参考意义。
In this article,in order to improve the working efficiency and automation degree of the current full-automatic liquid processing workstation and solve the problems of low precision and adaptability of the workstation caused by the defects of the sampling system itself,a new sampling system is developed,which realizes adjustable spacing between multiple channels and independently carries a sample injector for lifting.The overall scheme which meets the functional requirements is worked out,and the three-dimensional solid model of the module is set up by means of the UG/Modeling function;the cam trajectory conforming to the motion characteristics of the cam guide is designed with the help of the ADAMS software inversion method.The kinematics simulation is carried out with the simulated working conditions by means of ADAMS,and the curve of displacement change between channels and the curve of speed change of the outermost channel are obtained.The simulation results show that the channel spacing is smoothly adjusted from 9 mm to 24 mm,which verifies that the mechanism is feasible and has significant reference for the optimal design of the sampling system.
作者
彭洋洋
李大磊
李晶
万卓
PENG Yang-yang;LI Da-lei;LI Jing;WAN Zhuo(School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450000;Guangdong Shunde Innovative Design Institute,Foshan 528000)
出处
《机械设计》
CSCD
北大核心
2021年第11期29-33,共5页
Journal of Machine Design
关键词
取样系统
等间距调节装置
独立升降装置
运动仿真
sampling system
equal-spacing adjusting device
independent lifting device
motion simulation
