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油菜缽體苗移栽栽植孔成型機設(shè)計與試驗
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湖南省政府重大專項(湘府閱 [2014]35號),、湖南省科技廳重點項目(2016NK2105)、湖南省科技廳平臺建設(shè)項目(湘財教指[2014]10號)和湖南省研究生科研創(chuàng)新項目(CX2016B286)


Design and Test of Transplanting Hole-forming Machine for Rapeseed Potted Seedlings
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    摘要:

    為實現(xiàn)打穴式移栽機高效成型滿足農(nóng)藝要求栽植孔,基于打孔移栽作業(yè)的工作特點,融合油菜移栽農(nóng)藝要求,設(shè)計了一種純滾動式油菜移栽栽植孔成型機,。通過分析純滾動機構(gòu)運動機理,研究成孔機構(gòu)的運動參數(shù)方程,,建立成型栽植孔的參數(shù)方程,。采用Matlab軟件生成栽植孔理論輪廓線,并生成成型栽植孔的外形圖,,運用CATIA軟件進行仿真分析得出成型栽植孔的輪廓曲線圖,,并將上述圖形進行擬合模擬,驗證了成孔機構(gòu)結(jié)構(gòu)參數(shù)與運動參數(shù)的合理性,。試制樣機,,進行田間試驗,試驗結(jié)果表明:機具以慢2擋工作狀態(tài)下前進速度為1.80~1.96km/h,,作業(yè)效率達到0.306~0.333hm2/h,,在黏土、壤土和砂土3種土壤中試驗,其成孔的平均合格率分別達到了94.4%,、93.3%,、90.4%,表明研制的成孔機能成型滿足設(shè)計要求的栽植孔,。

    Abstract:

    In order to design a new rapeseed transplanting machine, a pure rolling-type transplanting hole-forming machine for rapeseed was developed in accordance with agricultural requirements for rapeseed transplanting and the features of transplanting hole formation. The motion mechanism of the pure rolling-type mechanism was analyzed to derive motion parametric equations for the hole-forming mechanism. Matlab was used to generate theoretical contour lines and outline drawings of the transplanting hole. CATIA was then used for simulation analysis to obtain the contour curve of the transplanting hole, and fitting as well as simulation were carried out to verify its structure and motion parameters. Based on different slip rates, Matlab was used to solve formed planting hole physical parameters, such as the longitudinally opening length, longitudinal length of planting hole at the depth of H and the upper lateral width. Subsequently, prototype trial-production was carried out, followed by field testing. The experimental results obtained indicated that when the machine was in low gear, its forward speed was in the range of 1.80~1.96km/h and field operation efficiency was in the range of 0.306~0.333hm2/h. When tested in three types of soil, i.e., clay, loamy and sandy soil, the average qualification rate of hole formation reached 94.4%, 93.3% and 90.4%, respectively. These results confirmed that the developed transplanting hole-forming machine satisfied design requirements, which was significant for the provision of technical support for the design of new transplanters.

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向偉,吳明亮,官春云,賀一鳴,羅海峰,顏波.油菜缽體苗移栽栽植孔成型機設(shè)計與試驗[J].農(nóng)業(yè)機械學(xué)報,2017,48(10):40-48,,58. XIANG Wei, WU Mingliang, GUAN Chunyun, HE Yiming, LUO Haifeng, YAN Bo. Design and Test of Transplanting Hole-forming Machine for Rapeseed Potted Seedlings[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(10):40-48,58.

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  • 收稿日期:2017-07-07
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  • 在線發(fā)布日期: 2017-10-10
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