原粮包装机夹袋机构设计与仿真  

Design and Simulation of Bag Clamping Mechanism of Raw Grain Packaging Machine

作　　者：王鹏宏 董欣[1] 刘立意[1] 左彦军[1] 李紫辉[1] Wang Penghong;Dong Xin;Liu Liyi;Zuo Yanjun;Li Zihui(Schoolof Engineering,Northeast Agricultural University,Harbin 150030,China)

机构地区：[1]东北农业大学工程学院,哈尔滨150030

出　　处：《农机化研究》2024年第6期33-40,共8页Journal of Agricultural Mechanization Research

基　　金：公益性行业(农业)科研专项(201002077)。

摘　　要：为了进一步提高实际生产中半自动原粮包装机夹袋机构的传动性能,考查夹袋机构的前、后咀夹板运动的同步性,优化设计了一种电驱动夹袋机构,并分析了包装夹袋过程的夹袋力与驱动力。利用多目标优化设计的主要目标法和分层序列法,基于MatLab优化设计功能,优化设计了夹袋传动机构的拉杆四杆机构与推杆四杆机构;基于CATIA建立夹袋机构三维模型,利用ADAMS进行了仿真分析。夹袋运动仿真分析表明:夹袋机构的前、后咀夹板角位移分别为16.25°和15.99°,仿真结果与理论值16°吻合;拉杆四杆机构与推杆四杆机构的传动角仿真结果分别为42.93°~56.32°和44.50°~65.18°,与传动角的优化结果42.97°~56.35°和44.35°~64.97°基本一致,均满足大于最小传动角40°的设计要求。仿真结果验证了夹袋机构设计的合理性及其前、后咀夹板运动的同步性。In order to further improve the transmission performance of the bag clamping mechanism of the semi-automatic raw grain packaging machine in actual production and investigate the synchronization of the movement of the front and rear nozzle splints of the bag clamping mechanism,this article optimizes and designs an electrically driven bag clamping mechanism,and analyzes the bag clamping force and driving force in the process of bag clamping.The pull rod four-bar mechanism and push rod four-bar mechanism of the bag clamping transmission mechanism are optimized by using the main objective method and hierarchical sequence method of multi-objective optimization design,based on the optimization design function of MATLAB.The three-dimensional model of the bag clamping mechanism is established by using CATIA,and Adams is used for simulation analysis.The simulation analysis of bag clamping motion shows that the angular displacement of the front and rear nozzle splints of the bag clamping mechanism is 16.25°and 15.99°,and the simulation results are consistent with the theoretical value of 16°.The simulation results of the transmission angle of the pull rod four-bar mechanism and the push rod four-bar mechanism are 42.93°~56.32°and 44.50°~65.18°,which are basically consistent with the optimization results of the transmission angle of 42.97°~56.35°and 44.35°~64.97°,and both meet the design requirements that the minimum transmission angle is greater than 40°.The results verify the rationality of the design of the bag clamping mechanism and the synchronization of the movement of the front and rear nozzle splints.

关 键 词：原粮包装机 夹袋机构 优化 仿真 

分 类 号：S226.71[农业科学—农业机械化工程]