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玉米對生種子脫粒機(jī)試驗(yàn)
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科技部糧食豐產(chǎn)科技工程項(xiàng)目(2006BAD02A1)


Experiment on Thresher of Maize Pair Seeds
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    摘要:

    為提高玉米對生種子脫粒率，降低籽粒的破損率，對對生種子脫粒機(jī)進(jìn)行了試驗(yàn)設(shè)計(jì)。采用玉米品種為美玉3號(hào)，進(jìn)行四因素二次回歸正交試驗(yàn)，分析了玉米果穗平均含水率、玉米果穗平均直徑、脫粒機(jī)鉆具直徑和鉆具錐角等因素對對生種子脫粒率和籽粒破損率的影響，建立數(shù)學(xué)模型并利用多目標(biāo)非線性優(yōu)化理論與方法，優(yōu)化其參數(shù)。以對生種子脫粒率最高和籽粒破損率最低為評(píng)價(jià)指標(biāo)，在果穗含水率為44%情況下，確定脫粒機(jī)的最優(yōu)參數(shù)組合：果穗平均直徑為39mm時(shí)，鉆具直徑為23mm，鉆具錐角為74°；果穗平均直徑為42mm時(shí)，鉆具直徑為24mm，鉆具錐角為72°；果穗平均直徑為47mm時(shí)，鉆具直徑為25mm，鉆具錐角為70°。

    Abstract:

    In order to improve the thresh efficiency of maize pair seeds and reduce the percentage of damaged seeds, experiments were carried out about the maize pair seeds thresher. The variety of maize was Meiyu No.3. The quadratic orthogonal tests were used. The effect of average water content, maize ear average diameter, thresher drilling tool diameter and drill angle on thresh percentage of pair seeds and damaged seeds of maize was analyzed. The mathematical model was developed. Taken the highest thresh percentage of pair seeds and the lowest percentage of damaged seeds as an evaluation index, the optimal parameters of thresher were obtained through multigoal nonlinear optimizing method. When the average diameter of maize ear was 39mm, the ear water content was 44%, the drilling tool diameter was 23mm and its angle was 74°. When the maize ear average diameter was 42mm, the ear water content was 44%, the drilling tool diameter was 24mm and its angle was 72°. When the maize ear average diameter was 47mm, the ear water content was 44%, the drilling tool diameter was 25mm and its angle was 70°.

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王 晶,聶 影,宮元娟,章惠全,孫榮強(qiáng).玉米對生種子脫粒機(jī)試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(2):104-108. Wang Jing, Nie Ying, Gong Yuanjuan, Zhang Huiquan, Sun Rongqiang. Experiment on Thresher of Maize Pair Seeds[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(2):104-108.

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