山地鱼腥草联合收获机挖掘机构设计及试验  

Design and Test of Digging Mechanism of Houttuynia Cordata Combine Harvester for Hilly Fields

作　　者：殷彦强 尹健[1,2] 罗雨戈 张勇 YIN Yan-qiang;YIN Jian;LUO Yu-ge;ZHANG Yong(College of Mechanical Engineering,Guizhou University,Guizhou Guiyang 550025,China;Guizhou Sunlight&Ground Agriculture Machinery Research and Development Co.Ltd.,Guizhou Guiyang 550008,China;Guiyang Wudang Agriculture Bureau,Guizhou Guiyang 550018,China)

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025 [2]贵州阳光大地农业机械研发有限公司,贵州贵阳550008 [3]贵阳市乌当区农业局,贵州贵阳550018

出　　处：《机械设计与制造》2021年第6期236-239,共4页Machinery Design & Manufacture

基　　金：2018年贵阳国家高新技术开发区高层次人才项目。

摘　　要：开发的一款山地鱼腥草联合收获机,作业时驱动轮时常出现打滑而导致作业失效。分析发现,原有挖掘铲入土角始终是22°是导致作业阻力大的主要原因。设计了基于铰链四杆机构的挖掘铲升降机构,其特点是初始入土角为22°,铲尖达到挖掘深度后变为0°。分析了挖掘铲的入土能力、挖深稳定性,并基于motion软件对入土机构的入土过程进行了运动仿真。田间试验表明:改进后的入土机构能实现挖掘铲顺利入土并达到了深度要求,挖掘过程工作稳定,驱动轮无打滑现象。The driving wheels of the houttuynia cordata combine harvester for hilly fields often slip in work process,which results in job failure.It’s found that the main reason is due to the fixed digging shovel angle of 22°.A digging shovel lifting mechanism based on a hinged four-bar mechanism is designed,with an initial shovel angle of 22°and the final angle 0°while reaching the digging depth.The ability of shovels of entering soil and working stability are analyzed.The motion simulation of the excavation mechanism is carried out by the motion software.Field tests have shown that the modified excavation mechanism enables shovel cut into soil and reach the required depth successfully,the excavation process is stable,and slipping is eliminated as well.

关 键 词：挖掘机构 入土性能 挖深稳定性 Motion仿真分析 田间试验 

分 类 号：TH16[机械工程—机械制造及自动化] S225.79[农业科学—农业机械化工程]