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二階自由非圓齒輪行星系缽苗移栽機取苗機構
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國家自然科學基金資助項目（51205361,、51175073、51205364）、浙江省自然科學基金資助項目（Y1110362,、R1110502）和浙江省高校重中之重學科優(yōu)秀青年人才培養(yǎng)基金資助項目（ZSTUMD2012B001）


Seedling Pick-up Mechanism of Planetary Gear Train with Two-order General Non-circular Gears
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    摘要:

    為滿足旱田缽苗移栽取苗機構理想鷹嘴形工作軌跡要求,，提出了連續(xù)傳動的二階自由非圓齒輪行星輪系取苗機構，以實現(xiàn)取苗爪周期性二次不等幅擺動規(guī)律,。利用曲線擬合方法構建自由傳動比函數(shù),，建立機構不等速傳動的數(shù)學模型，編寫機構分析軟件,，確定傳動比函數(shù)和機構參數(shù),，研制取苗機構并進行了高速錄像試驗。結果表明,，該型取苗機構的工作軌跡和理論計算吻合,，能夠?qū)崿F(xiàn)取苗深度35mm，取苗爪在缽體中穴口小于5mm,，取苗爪入缽和出缽段姿態(tài)滿足工作要求,。

    Abstract:

    In order to meet the requirements of dryland pot seeding transplanting mechanism, which need to achieve ideal “olecranon shaped” track, a continuous transmission seedling pick-up mechanism of planetary gear train with second-order general non-circular gears was proposed so as to achieve the seedlings claw periodic secondary unequal amplitude swing. The curve fitting method was utilized to build free transmission function, and a mathematical model about non-constant velocity drive of mechanisms was established, The mechanism analysis software was compiled, and the transmission ratio functions and mechanism parameters were determined to manufacture the seedlings transplanting mechanism. The high speed video test was carried out, The results showed that the seedlings test trajectory could agree well with theoretical calculations. The depth of taking seedlings was deeper than 35mm, and the scoop of pot was less than 5mm. The posture of seedlings claw met the job requirements during plunging into pot and quitting pot process.

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趙 雄,陳建能,楊茂祥,趙 勻.二階自由非圓齒輪行星系缽苗移栽機取苗機構[J].農(nóng)業(yè)機械學報,2014,45(4):123-127. Zhao Xiong, Chen Jianneng, Yang Maoxiang, Zhao Yun. Seedling Pick-up Mechanism of Planetary Gear Train with Two-order General Non-circular Gears[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(4):123-127.

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  • 收稿日期:2013-04-07
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  • 在線發(fā)布日期: 2014-04-10
  • 出版日期: 2014-04-10
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