木薯种茎整理排序装置设计与优化  

Design and Optimization of Sorting Device for Cassava Seed Stem

作　　者：张俊 何辉波[1] 邓干然[2] 李华英[1] 崔振德[2] 郑爽[2] 谭梁 苟于江 ZHANG Jun;HE Hui-bo;DENG Gan-ran;LI Hua-ying;CUI Zhen-de;ZHENG Shuang;TAN Liang;GOU Yu-jiang(School of Engineering and Technology,Southwest University,Chongqing 400715,China;Agricultural Machinery Research Institute of Chinese Academy of Tropical Agricultural Sciences,Zhanjiang Guangdong 524091,China)

机构地区：[1]西南大学工程技术学院,重庆400715 [2]中国热带农业科学院农业机械研究所,广东湛江524091

出　　处：《西南大学学报（自然科学版）》2021年第2期40-46,共7页Journal of Southwest University(Natural Science Edition)

基　　金：重庆市技术创新与应用发展项目(cstc2020jscx-msxmX0192).

摘　　要：为推动木薯种植机械化,提高木薯种植的效率和减轻劳动者的工作强度,设计了一种木薯种茎整理排序装置.该装置包括出种机构、整理排列机构以及取种机构,出种机构每次拨出少量种茎,整理排列机构将种茎整理后排序,取种机构逐个取出种茎.文中对各机构的组成结构和工作原理进行了详细介绍,通过Abaqus软件对种箱底板进行有限元分析,使用Isight中的多岛遗传算法对种箱底板的6个主要参数进行优化,优化后种箱底板的最大位移值比优化前减小了74.9%.通过试制物理样机,以华南9号木薯茎秆为试验对象,进行了自动取种试验.试验结果表明:能够实现从大量种茎中自动取种,取种率为83.11%,验证了木薯种茎整理排序装置的可行性,同时也为研究预切种式木薯种植机械化提供了参考.In order to promote the mechanization and improve the efficiency of cassava planting,and reduce the work intensity of workers,a sorting device for cassava stalk seedsis designed.The device comprises a seeding mechanism,a sorting arrangement mechanism and a seed picking mechanism.Each time the seeding mechanism allocates a small number of seedstems,the sorting mechanism sortsthem,and the seeding mechanism takes out the stems one by one.The present paper gives a detailed description of the structure and working principle of the mechanisms.Through Abaqus finite element analysis of the seed box bottom plate,the multi-island genetic algorithm in Isight is used to optimize and calculate the six main parameters of the seed box bottom plate.The optimized maximum displacement is reduced by 74.9%.The results of an automatic seed picking experiment in which a trial-produced physical machine and cassava stalks of South China No.9 were taken as test objects,showed that it was possible to select one by one from a large number of stems,with an average rate of 83.11%,thus confirming the feasibility of the sorting device for cassava stalk seeds.

关 键 词：木薯种茎 整理排序装置 结构设计 有限元法 优化 

分 类 号：S223.1[农业科学—农业机械化工程]