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氣吸滾筒式棉花精量穴播器排種性能試驗
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-performance of Air-suction Cylindrical Cotton Precision Dibbler
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    摘要:

    針對氣吸滾筒式精量穴播器作業(yè)過程中能耗大、排種性能不穩(wěn)定等問題，以主要影響因素:取種盤吸孔線速度和充種負壓為研究對象進行正交試驗、回歸分析，確定各因素對排種性能的影響規(guī)律及較優(yōu)工作參數(shù)組合。結(jié)果表明：充種相對壓力-4.5 kPa、取種盤吸孔線速度0.38 m/s時為較優(yōu)作業(yè)參數(shù)組合，此條件下穴播器的單粒指數(shù)為98.67%、綜合評價指數(shù)為99.00%、重播指數(shù)為0.67%、漏播指數(shù)為0.67%，滿足精量穴播要求。

    Abstract:

    In order to solve that the large energy consumption and unstable sowing-performance of air-suction cylindrical, orthogonal test and regression analysis were applied to research the relative pressure and suction-hole velocity that influenced the sowing-performance mainly. Variance analysis of the experiment results defined the influencing regularity and the optimization of the factors. Experimental results indicated that the sowing-performance became worse quickly with the increasing of suction-hole velocity, but became better with the increasing of relative pressure. The optimization of the two factors was the suction-hole velocity of 0.38m/s and the relative pressure of -4.5kPa. Under such working conditions, the single seed index was 9867%, the synthetical rate of seed was 99.00%, the multiples index was 0.67%, and the miss index was 0.67%, so the seed-metering device could satisfy the demand for precision seeding. 

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陳學庚,盧勇濤.氣吸滾筒式棉花精量穴播器排種性能試驗[J].農(nóng)業(yè)機械學報,2010,41(8):35-38.-performance of Air-suction Cylindrical Cotton Precision Dibbler[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(8):35-38.

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