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玉米根茬破碎還田裝置設(shè)計(jì)與試驗(yàn)
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    摘要:

    分析了玉米根茬破碎還田裝置中直刀、旋耕刀、月牙刀的破茬原理，試驗(yàn)驗(yàn)證了月牙刀滑切破茬具有土壤擾動(dòng)小、功耗低、破碎能力強(qiáng)的特點(diǎn)。以刀輥轉(zhuǎn)速、機(jī)器前進(jìn)速度、切刀入土深度為試驗(yàn)因素，以功耗、破茬合格率為試驗(yàn)指標(biāo)，分別建立了表征月牙刀破茬性能的數(shù)學(xué)模型，確定最佳參數(shù)為：切刀入土深度48 mm，機(jī)器前進(jìn)速度0.77 m/s，刀輥轉(zhuǎn)速266 r/min。在試驗(yàn)范圍內(nèi)，切刀入土深度對功耗的影響最大；刀輥轉(zhuǎn)速和機(jī)器前進(jìn)速度對破茬合格率影響最大。

    Abstract:

    This paper analyzed the smashing theory of straight blades, crescent blades and bent blades respectively. With the velocity of roller, the machine speed and the depth in the dust as the test factors, and the percent of pass and the power consumption as the test indexes, the experiments were carried out subsequently. The advantages of crescent blades, such as small disturbance, low power consumption and high pass percent were validated by experiment. Finally, the regressive mathematic model of crescent blades smashing performance was established and the optimum parameters were obtained by regressive analysis.  

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倪長安,苗全生,劉玉,師清翔,高春艷,龐靖.玉米根茬破碎還田裝置設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(7):68-71.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(7):68-71.

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