B样条非圆齿轮行星轮系水稻钵苗移栽机构的设计与优化

钵苗移栽可以提高产量，对中国粮食安全具有重要意义。在分析水稻钵苗移栽机构最新研究进展的基础上，该文作者发明了基于三次非均匀有理B样条曲线的非圆齿轮行星轮系钵苗移栽机构。选取非圆齿轮节曲线上的13个型值点来控制和表达非圆齿轮的节曲线形状，通过该移栽机构的运动学分析，在确定优化目标的基础上，建立了夹秧片姿态和尖点轨迹的目标函数，将目标函数转化为优化数学模型。利用MATLAB GU平台，开发出该移栽机构的计算机辅助分析与优化软件，通过人机对话调整型值点，优化夹秧片姿态和尖点轨迹，从而获得了一组满足水稻钵苗移栽要求的结构参数。建立三维模型，并利用Admas进行虚拟样机仿真，验证了该移栽机构数学模型的正...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 15; pp. 10 - 17
Main Author 左彦军 曹鹏 赵匀 于晓旭 吕程 张智超 张昊
Format Journal Article
LanguageChinese
Published 黑龙江粮食产能提升协同创新中心，哈尔滨 150030 2014
东北农业大学工程学院，哈尔滨 150030
Subjects
B样条
农业机械
机构
水稻钵苗
移栽
行星轮系
非圆齿轮
agricultural machinery
B样条
水稻钵苗
机构
行星轮系
rice pot seedling
移栽
planetary gear train
non-circular gear
B-spline
mechanisms
非圆齿轮
农业机械
transplants
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.15.002

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Summary:钵苗移栽可以提高产量，对中国粮食安全具有重要意义。在分析水稻钵苗移栽机构最新研究进展的基础上，该文作者发明了基于三次非均匀有理B样条曲线的非圆齿轮行星轮系钵苗移栽机构。选取非圆齿轮节曲线上的13个型值点来控制和表达非圆齿轮的节曲线形状，通过该移栽机构的运动学分析，在确定优化目标的基础上，建立了夹秧片姿态和尖点轨迹的目标函数，将目标函数转化为优化数学模型。利用MATLAB GU平台，开发出该移栽机构的计算机辅助分析与优化软件，通过人机对话调整型值点，优化夹秧片姿态和尖点轨迹，从而获得了一组满足水稻钵苗移栽要求的结构参数。建立三维模型，并利用Admas进行虚拟样机仿真，验证了该移栽机构数学模型的正确性。
Bibliography:The pot seedling transplanting has the advantages of non-hurting root and no need of recovering period, so it can extend the crop growing period, increase and bring forward the effective tillering, which is very important to the food security. Since Japan invented the first transplanter for rice pot seedling in 1975, large agricultural machinery companies have producted their own models in succession, such as Yanmar, Iseki and so on. The materials and manufacture technologies have been improved through the forty years development, but the basic structure and working principle are still the same. All the transplanting machines use 3 sets of mechanism to complete 3 kinds of movements of picking, transporting and planting. The existing machines have the disadvantages of complex structure, high cost and low efficiency. In domestic, the rice pot seedling transplanting machine uses double cranks to complete the 3 kinds of movements, it has relatively simple mechanism, and is suitable for the rice pot seedlings tran
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.15.002