基于Pro/E的水稻插秧机分插机构运动仿真与分析  

The Pro/E-Based Kinematics Simulation and Analysis of the Transplanting Mechanism of a Rice Transplanter

作　　者：陈霖[1] 张云彪[1] 孙伟[1] 张黎骅[1] 

机构地区：[1]四川农业大学信息与工程技术学院,四川雅安625014

出　　处：《西南大学学报（自然科学版）》2012年第7期103-106,共4页Journal of Southwest University(Natural Science Edition)

基　　金：四川省科技厅支撑计划(2010JY0084)

摘　　要：基于Pro/E建立了后插式曲柄摇杆分插机构的三维模型,并进行了运动仿真模拟和动力学分析,参数设定为分插机构工作插次200次/min,主动轴转速为n=200r/min,运动时间为t=1.5s的情况下,得到秧针的运动速度图和加速度图,使得机构运动分析变得可视化、直观化和简单化,为分插机构的设计提供了方法,有利于机构参数的合理选择,同时降低分插机构的研发周期,提高工作效率.利用Pro/E找出了分插机构的振动源和受力情况,结果指出,曲柄添加平衡块和减轻摇杆质量有利于减小冲击和振动.In the present research, a 3D model of the crank-rocker rice transplanting mechanism was established, its motion form was simulated and its dynamics characteristics were analyzed based on the Pro/E. The speed and acceleration rate diagrams of the transplanter needle were constructed under the following working conditions, transplanting rate 200 times/min, driving shaft rotational speed 200 r/min, and moving time 1.5 s. This made the analysis of the mechanism movement visualizable, direct and simplified, provided methods for the design of transplanting mechanisms, and was beneficial for the reasonable selection of mechanism parameters. The vibration source and stress condition of the transplanting mechanism were identified based on the Pro/E. The results indicated that adding balance blocks to the crank and decreasing the rocker mass were propitious for reducing impact and vibration.

关 键 词：水稻插秧机 曲柄摇杆分插机构 PRO/E 运动仿真与分析 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]