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吸盤式精密排種裝置吸種過程氣流場中種子受力研究
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高等學校博士學科點專項科研基金資助項目(20103227120010)、江蘇省2012年度普通高校研究生科研創(chuàng)新計劃資助項目(CXZZ12_0661),、江蘇省高校自然科學研究重大資助項目(11KJA460002)和江蘇高校優(yōu)勢學科建設工程資助項目(蘇財教﹝2011﹞8號)


Seed Force in Airflow Field of Vacuum Tray Precision Seeder Device during Suction Process of Seeds
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    摘要:

    運用計算流體動力學軟件Fluent研究了吸種區(qū)域氣流場中的種子顆粒受力,。選取相對壓力、吸孔孔徑,、種子與吸孔的距離,、種子姿態(tài)4個因素進行正交仿真試驗,，分析排種裝置工作參數(shù)對氣流場中顆粒受力的影響。建立了種子顆粒在氣流場中受力數(shù)學模型,，得出影響種子顆粒受力的因素主次順序為：種子與吸孔的距離,、種子姿態(tài)、相對壓力,、吸孔孔徑,。吸孔吸附距離范圍為0.34～1.90mm。在精密排種裝置試驗臺上進行試驗,，試驗結(jié)果與理論分析基本吻合,，表明了所建模型的正確性。

    Abstract:

    Using the computer fluid dynamics software Fluent, the seed particle force in the airflow field of precision seeder device was analyzed. Selecting four factors（relative pressure, aperture of suction hole, distance of seed and suction hole, seed attitude）, the seed particle force was studied through orthogonal simulation test, and the impact of precision seeder device working parameters on the particle force was analyzed. The mathematical model of seed particle force in airflow field was established, and the order of the effect factors was as following: distance of seed and suction hole, seed attitude, relative pressure, aperture of suction hole. The range of suction hole adsorption was 0.34～1.90 mm. Conducting experiment on the vacuum-vibration tray precision seeder device, the results of experiment were consistent with the theoretic analysis and show the correctness of the established model.

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龔智強,陳進,李耀明,李建華.吸盤式精密排種裝置吸種過程氣流場中種子受力研究[J].農(nóng)業(yè)機械學報,2014,45(6):92-97,117. Gong Zhiqiang, Chen Jin, Li Yaoming, Li Jianhua. Seed Force in Airflow Field of Vacuum Tray Precision Seeder Device during Suction Process of Seeds[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(6):92-97,117.

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  • 收稿日期:2013-07-02
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  • 在線發(fā)布日期: 2014-06-10
  • 出版日期: 2014-06-10
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