| 基于打瓜力学特性的破碎装置研究与分析 |
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| 引用本文： | 牛长河,王学农,刘旋峰.基于打瓜力学特性的破碎装置研究与分析[J].新疆农业科学,2012,49(11):2108-2115. |
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| 作者姓名： | 牛长河 王学农 刘旋峰 |
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| 作者单位： | 新疆农业大学机械交通学院,乌鲁木齐830054;新疆农业科学院农业机械化研究所/农业部林果棉与设施农业装备科学观测实验站,乌鲁木齐830091;新疆农业科学院农业机械化研究所/农业部林果棉与设施农业装备科学观测实验站,乌鲁木齐,830091 |
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| 基金项目： | 农业科技成果转化资金项目“打瓜捡拾脱籽联合作业机中试与示范”(2011GB2G40001);新疆维吾尔自治区知识产权局专利实施项目“打瓜捡拾脱籽联合作业机”(2010013);新疆维吾尔自治区科技兴新项目“打瓜全程机械化技术示范与推广”(2010020B10) |
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| 摘 要： | 目的]设计新型打瓜破碎装置,对其关键零件主轴进行强度校核.方法]通过对打瓜进行压缩试验,研究打瓜的机械特性,得出打瓜的弹性模量,运用有限元分析法建立打瓜的力学特性有限元模型,并使用有限元分析软件对破碎装置的关键零件进行模拟强度校核.结果]通过试验,得出打瓜的强度极限为1 310N,平均弹性模量为5.05×106 Pa,密度为910 kg/m3,有限元分析结果与试验数据基本吻合,建立的打瓜力学有限元模型可用于分析打瓜的破碎机理.结论]新型打瓜破碎装置主轴经校核满足强度要求.
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| 关 键 词： | 打瓜 弹性模量 机械特性 有限元分析 |
| 收稿时间： | 2012-11-25 |
Research on and Analysis of Crushing Device Based on the Mechanical Properties of Seed Watermelon |
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| NIU Chang-he,WANG Xue-nong,LIU Xuan-fen.Research on and Analysis of Crushing Device Based on the Mechanical Properties of Seed Watermelon[J].Xinjiang Agricultural Sciences,2012,49(11):2108-2115. |
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| Authors: | NIU Chang-he WANG Xue-nong LIU Xuan-fen |
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| Institution: | NIU Chang - he(1,2),WANG Xue - nong2,LIU Xuan - fen2 (1.College of Mechanical Engineering and Traffic,Xinjiang Agricultural University,Urumqi 830052, China;2.Research Institute of Agricultural Mechanization,Xinjiang Academy of Agricultural Sciences, Scientific Observing and Experimental Station of Forest Fruit,Cotton Experiment and Facility Agriculture, Ministry of Agriculture,Urumqi 830091,China) |
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| Abstract: | 【Objective】The purpose of this project was to design a new crushing device and make strength checking on its spindle.【Method】Compressive test was used to research mechanical properties and get the elastic modulus of seed watermelon and finite - element analysis was applied to establish mechanical property model.Also,finite - element analysis software was employed to simulate strength checking on the key parts of crushing device.【Result】Through the test,the average elastic modulus of seed watermelon was got, that is,5.05×10~6 Pa,and the density was 910 kg/m~3.The results of the finite element analysis and the test are very similar;the established mechanical model can analyze the crushing mechanism of seed watermelon and solve the matching problem between pick - up device of seed watermelon harvester and crushing device.【Conclusion】Through checking,the spindle of new crushing device could meet the strength requirements. |
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| Keywords: | seed watermelon elasticity modulus mechanical property finite - element analysis |
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