基于TRIZ理论的马铃薯联合收获机机架设计与分析  

Design and analysis of potato combine harvester frame based on TRIZ theory

作　　者：蒙建国 杨国欣 王亮[1] 迟明路 吴航宇 MENG Jianguo;YANG Guoxin;WANG Liang;CHI Minglu;WU Hangyu(Mechanical Engineering School,Inner Mongolia University of Science and Technology,Baotou 014010,China;Intelligent En-gineering School,Henan Institute of Technology,Xinxiang 453004,China;Gaofeng Machinery Equipment Co.,Ltd,Ulanchap 012199,China)

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010 [2]河南工学院智能工程学院,河南新乡453004 [3]高峰机械设备有限公司,内蒙古乌兰察布012199

出　　处：《内蒙古科技大学学报》2023年第3期210-214,共5页Journal of Inner Mongolia University of Science and Technology

基　　金：内蒙古自治区重点研发和成果转化计划资助项目(2022YFHH0122).

摘　　要：某大型马铃薯收获机的机架强度不足、焊接点易于断裂.为提高机架可靠性,基于TRIZ理论对机架进行改进设计.首先,针对收获机工作时所存在的机架焊接点断裂问题进行了总结,利用TRIZ理论中的“冲突解决原理”对机架前段的方管连接薄弱部分进行了改进升级;其次,运用ANSYS18.0软件对机架进行了强度分析;最后,在强度分析的基础上,对改进前后的机架进行了疲劳分析.结果表明:改进后的机架设计合理,疲劳寿命为1×106次,最小安全系数大于1,能满足机架的疲劳要求.该研究结果对大型块茎类收获机机架的改进设计提供了参考.The frame of a large potato harvester has insufficient strength and the welding points on the frame are prone to fracture.To improve the reliability of the frame,this paper optimized the frame design based on TRIZ theory.Firstly,this study summarized the fracture problem of the welding point of the frame of the harvester,and improved the weak part of the square tube connection in the front section of the frame using the“conflict resolution”of TRIZ theory.Secondly,the strength of the rack was analyzed using ANSYS 18.0 software.Finally,based on the strength analysis,the fatigue analysis of the frame before and after the improvement was carried out.The results show that the improved frame design is reasonable and the fatigue life is 1×106 times,the minimum safety factor is greater than 1,which can meet the fatigue requirements of the frame.The result of this study provides a reference basis for the design of large tuber harvesters.

关 键 词：马铃薯联合收获机 优化设计 TRIZ理论 疲劳分析 

分 类 号：S225.7[农业科学—农业机械化工程]