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振动与波浪二级分离马铃薯收获机改进
引用本文:魏忠彩,李洪文,孙传祝,李学强,刘文政,苏国粱,王法明.振动与波浪二级分离马铃薯收获机改进[J].农业工程学报,2018,34(12):42-52.
作者姓名:魏忠彩  李洪文  孙传祝  李学强  刘文政  苏国粱  王法明
作者单位:中国农业大学工学院;山东省马铃薯生产装备智能化工程技术研究中心;山东理工大学机械工程学院;山东希成农业机械科技有限公司
基金项目:山东省泰山产业领军人才工程高效生态农业创新类项目(LJNY201615);山东省重大科技创新工程项目(2017CXGC0219);"十三五"国家重点研发计划专项(2016YFD0701603-02);山东省农机化装备研发创新项目(2016YF034)
摘    要:针对当前马铃薯机械化收获环节存在的破皮率和伤薯率较高等问题,通过设置振动分离段和波浪分离段、基于振动与波浪二级分离改进了一种马铃薯收获机,并分析了振动与波浪二级分离条件下的分离筛及薯块运动特征。单因素试验表明,收获速度为0.726 m/s时,单位时间内挖掘的薯土混合物较少,易导致薯块疲劳累积损伤,当收获速度为1.167m/s时分离筛的分离负担加大,土壤和杂质分离效率降低,导致明薯率下降;分离筛运行速度从1.52提高至2.80 m/s时,破皮率和伤薯率呈先降低后增大的趋势,但明薯率自99.8%下降至96.4%;振动强度由无振动增加到强烈振动时,明薯率提高3.3%,但破皮率和伤薯率均有较大幅度的增加;峰谷高差自40~40 mm增大到200~200 mm时,明薯率由97.2%升高至99.8%,但其破皮率和伤薯率均有所升高。正交试验表明:破皮率和伤薯率受收获速度和振动强度的影响规律基本一致;收获速度和振动强度对破皮率和伤薯率的影响较显著(P0.05),振动强度和峰谷高差对明薯率的影响较显著(P0.05)。该文为马铃薯收获机的研发优化以及薯土分离效率和收获品质的综合控制提供了技术参考。

关 键 词:振动  机械化  收获  马铃薯  混合分离  破皮率  伤薯率  运动特征
收稿时间:2017/11/9 0:00:00
修稿时间:2018/2/28 0:00:00

Improvement of potato harvester with two segment of vibration and wave separation
Wei Zhongcai,Li Hongwen,Sun Chuanzhu,Li Xueqiang,Liu Wenzheng,Su Guoliang and Wang Faming.Improvement of potato harvester with two segment of vibration and wave separation[J].Transactions of the Chinese Society of Agricultural Engineering,2018,34(12):42-52.
Authors:Wei Zhongcai  Li Hongwen  Sun Chuanzhu  Li Xueqiang  Liu Wenzheng  Su Guoliang and Wang Faming
Institution:1.College of Engineering, China Agricultural University, Beijing 100083, China; 2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China;,1.College of Engineering, China Agricultural University, Beijing 100083, China; 2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China;,2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China; 3. School of Mechanical Engineering, Shandong University of Technology, Zibo 255091, China;,2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China; 4. Shandong Xicheng Agricultural Machinery Science and Technology Co., Ltd., Dezhou 253600, China,1.College of Engineering, China Agricultural University, Beijing 100083, China; 2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China;,2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China; 4. Shandong Xicheng Agricultural Machinery Science and Technology Co., Ltd., Dezhou 253600, China and 2. Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment, Dezhou 253600, China; 4. Shandong Xicheng Agricultural Machinery Science and Technology Co., Ltd., Dezhou 253600, China
Abstract:
Keywords:vibrations  mechanization  harvesting  potato  hybrid separation technology  bruising rate  damage rate  movement characteristics
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