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壟作免耕播種機被動式防纏繞破茬清壟裝置設(shè)計與試驗
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國家自然科學基金面上項目(51275318)、農(nóng)業(yè)部公益性行業(yè)科研專項(201503116-09)和遼寧省農(nóng)村經(jīng)濟委員會與質(zhì)量技術(shù)監(jiān)督局地方標準項目(2016160-27)


Design and Experiment of Passive Anti-winding Stubble Breaking and Ridge Cleaning Device for No-tillage Planter
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    為了解決東北玉米壟作免耕播種機作業(yè)時纏繞堵塞工作部件,減小對土壤擾動,提高破茬開溝質(zhì)量等問題,優(yōu)化設(shè)計了防纏繞破茬清壟裝置,主要包括阿基米德螺線鋸齒型缺口圓盤破茬刀和星型清壟輪。通過理論分析確定了影響破茬清壟裝置作業(yè)性能的主要參數(shù)為機具前進速度Vm、破茬刀入土深度h以及清壟輪安裝偏置角α。利用離散元軟件EDEM進行二次回歸正交旋轉(zhuǎn)組合仿真試驗,確定了該裝置的最優(yōu)工作參數(shù)組合為:機具前進速度Vm為7km/h、破茬刀入土深度h為75mm、清壟輪安裝偏置角α為30°。通過田間驗證試驗,得出破茬清壟裝置在最優(yōu)工作參數(shù)組合下的破茬率為92.21%,清秸率為93.49%,驗證了仿真理論研究結(jié)果,機具通過性顯著提高,達到了東北玉米壟作免耕播種農(nóng)藝和農(nóng)機的技術(shù)要求。

    Abstract:

    Currently, during the no-tillage planting operation of corn ridge in Northeast China, there are issues such as entanglement and blockage of working parts, soil disturbance reduction, and improvement of stubble breaking and ditching quality. To address these issues, the anti-winding stubble breaking and clearing device was optimized, consisting of the Archimedes spiral serrated notch disc stubble cutter and star ridge cleaning wheel. Through theoretical analysis, the main parameters affecting the performance of the stubble clearing and ridge cleaning device were identified as the tool forward speed, the depth of the stubble cutter in soil, and the offset angle of the ridge clearing wheel installation. To determine the optimal working parameters of the device, the second-order regression orthogonal rotation combination simulation experiment was conducted by using the discrete element software EDEM. Through this experiment, the optimal working parameter combination of the device was obtained, which included a tool forward speed of 7km/h, a stubble cutter depth of 75mm, and a ridge clearing wheel installation offset angle of 30°. Field experiments were conducted to verify the optimal parameter combination, and the results indicated that the stubble breaking rate of the Archimedes spiral sawtooth notch disc stubble breaker was 92.21% and the stubble clearing rate was 93.49%, which significantly improved the trafficability of machines and tools. The simulation theory results were verified by field experiments, meeting the technical requirements for the integration of ridge planting and no-tillage sowing agronomy and agricultural machinery in Northeast China.

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林靜,呂洲翼,李宏哲,王鑫宇,王東銳.壟作免耕播種機被動式防纏繞破茬清壟裝置設(shè)計與試驗[J].農(nóng)業(yè)機械學報,2023,54(6):19-27. LIN Jing, Lü Zhouyi, LI Hongzhe, WANG Xinyu, WANG Dongrui. Design and Experiment of Passive Anti-winding Stubble Breaking and Ridge Cleaning Device for No-tillage Planter[J]. Transactions of the Chinese Society for Agricultural Machinery,2023,54(6):19-27.

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  • 收稿日期:2022-09-27
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  • 在線發(fā)布日期: 2022-12-30
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