小型甘蔗收获机振动特性的研究与分析  

Study and Analysis on Vibration Characteristics of Small Sugarcane Harvester

作　　者：何桂庆 赖晓[1] 莫瀚宁[1,2] 曾邦[1] 曹铂潇 滕筱 HE Guiqing;LAI Xiao;MO Hanning;ZENG Bang;CAO Boxiao;TENG Xiao(School of Mechanical Engineering,Guangxi University,Nanning 530000,China;School of Mechanical and Tesource Engineering,Wuzhou University,Wuzhou Guangxi 543002,China)

机构地区：[1]广西大学,机械工程学院,广西南宁530004 [2]梧州学院,机械与资源工程学院,广西梧州543000

出　　处：《装备制造技术》2021年第11期19-23,共5页Equipment Manufacturing Technology

基　　金：广西自然科学基金项目(2016GXNSFBA380243);广西制造系统与先进制造技术重点试验室项目(桂科能07109008_021_K);广西高校中青年教师科研基础能力提升项目(2020KY17008);梧州学院校级科研项目重点项目(2020B003)。

摘　　要：通过建立甘蔗收获机动力学模型,依据理论分析了甘蔗收获机各部件的质量、安装位置变化对切割系统振动的影响,同时考虑多种激励和多自由度的情况下建立了虚拟样机模型,通过多角度分析复杂激励中的三种激励源对切割系统振动的影响程度,发现路面激励是影响振动的主导因素。这对甘蔗收获机切割系统的减振,整机结构优化和提高切割质量有着重要的指导意义。With the goal of improving the rigidity of the cutter head of the second-generation sugarcane harvester of the research group,the excitation source and sugarcane damage mechanism are analyzed through theoretical calculations and experiments,and new vibration intensity and energy evaluation indicators are proposed,considering multiple excitations and multiple In the case of degrees of freedom,the dynamic model and virtual prototype model of the whole machine are established.Through multi-angle analysis of the contribution of the three excitation sources in the complex excitation to the vibration,the difference in the impact of different front wheel installation methods on the vibration is obtained.The influence law of the excitation source on the amplitude of the cutter head.It provides a theoretical basis for the vibration reduction and structural optimization of the cutter head of the sugarcane harvester.

关 键 词：甘蔗收获机 动力学模型 激励源 

分 类 号：S225[农业科学—农业机械化工程]