油茶果籽壳清选机的设计与仿真分析  

Design and simulation analysis of sorting machine for camellia oleifera seed-shell

作　　者：胡靖 罗新涵 付佳文 吴明亮[1,2] 刘富平 李铁辉 吴志立 HU Jing;LUO Xinhan;FU Jiawen;WU Mingliang;LIU Fuping;LI Tiehui;WU Zhili(College of Mechanical and Electrical Engineering,Hunan Agricultural University,Changsha,Hunan 410128,China;Hunan Provincial Engineering Technology Research Center for Modern Agricultural Equipment,Changsha,Hunan410128,China;Hunan Nongyou Machinery Corporation,Loudi,Hunan 417700,China)

机构地区：[1]湖南农业大学机电工程学院,湖南长沙410128 [2]湖南现代农业装备工程技术研究中心,湖南长沙410128 [3]湖南省农友机械集团有限公司,湖南娄底417700

出　　处：《农业工程与装备》2023年第5期5-9,共5页AGRICULTURAL ENGINEERING AND EQUIPMENT

基　　金：湖南省研究生科研创新项目(QL20230179);特色油料作物(油茶)全程机械化科研基地建设项目(2112-430000-04-03-549452)。

摘　　要：为提高油茶果脱壳后籽壳混合物的清选效率,基于油茶果壳与籽在尺寸、摩擦系数上的差异,设计了一种集滚筒筛式粗选和皮带传送式精选为一体的清选装置。对该装置的关键参数进行理论分析后得出,传送带的倾斜角度范围为22~35°,皮带速度调节范围为0.5~1.5 m/s,滚筒筛转速小于38.6 r/min。利用三维软件进行建模,通过离散元仿真验证该装置设计方案的可行性,并对其仿真结果进行数据分析,以清选效率为评价指标,得出最优工艺参数:滚筒转速20 r/min,传送带速度0.5 m/s,传送带倾角25°。In order to improve the cleaning rate of the seed-shell mixture after dehulling Camellia oleifera,a cleaning device integrating drum screen rough selection and belt conveyor selection was designed based on the differences in size and friction coefficient between Camellia oleifera shells and seeds.After theoretical analysis of the key parameters of the device,it is found that the inclination angle range of the conveyor belt is 22-35°,the belt speed adjustment range is 0.5-1.5 m/s,and the drum screen speed is less than 38.6 r/min.Using 3D software for modeling,the feasibility of the device is verified through discrete element simulation,and the simulation results are analyzed with data.The cleaning rate is used as the evaluation index to obtain the optimal process parameters:drum speed of 20 r/min,conveyor belt speed of 0.5 m/s,and conveyor belt inclination angle of 25°.

关 键 词：油茶果清选机 滚筒筛 理论分析 离散元仿真 

分 类 号：S226.5[农业科学—农业机械化工程]