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超級(jí)稻摘穗收獲機(jī)沉降箱性能分析與運(yùn)行參數(shù)優(yōu)化
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國(guó)家自然科學(xué)基金資助項(xiàng)目(51005045)


Performance Analysis and Operational Parameters Optimization of Deposition Chamber to Clean Super Rice in Stripper Combine Harvester
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    摘要:

    為使4ZTL-2000型摘穗收獲機(jī)收獲超級(jí)稻時(shí)具有最佳清選性能,,以谷物清潔率和沉降箱能耗為指標(biāo),,沉降箱入口氣流速度,、谷物喂入量及其初速度為影響因素,,采用二次正交旋轉(zhuǎn)組合設(shè)計(jì)試驗(yàn),,利用Design-Expert 6.0.10進(jìn)行數(shù)據(jù)處理,,得出回歸數(shù)學(xué)模型,通過(guò)響應(yīng)曲面方法分析指標(biāo)與因素間的相互作用,,并對(duì)回歸數(shù)學(xué)模型進(jìn)行多目標(biāo)優(yōu)化,。結(jié)果表明:沉降箱入口氣流速度對(duì)沉降箱指標(biāo)影響最大,谷物初速度相對(duì)小,,谷物喂入量的影響最小,。為使沉降箱處理超級(jí)稻(目前谷物喂入量最大為3.78kg/s)時(shí)具有最佳性能,通過(guò)優(yōu)化獲得運(yùn)行參數(shù)的最佳組合為:沉降箱入口氣流速度為13.93m/s,,谷物初速度為18.84m/s,。通過(guò)試驗(yàn)驗(yàn)證谷物清潔率達(dá)到了90.1%,沉降箱能耗為3483Pa,,籽粒沉降效率為100%,。

    Abstract:

    4ZTL-2000 rice stripper combine harvester with air suction is a feasible machine for the harvesting of super rice. Deposition chamber is a key part of combine harvester. In order to obtain the outstanding performance and optimal parameters of the deposition chamber to clean super rice, quadratic orthogonal rotational combinational design was conducted. The factors were selected as inlet airflow velocity of the deposition chamber, mass and velocity of grain fed. Cleaning rate of grain and airflow pressure drop in the deposition chamber were objective indexes. The regression models between indexes and factors were developed by using Design-Expert software. The interactions of factors on the indexes were analyzed by the response surface method. The results show that inlet airflow velocity of the deposition chamber has the most significant effect on the indexes of the chamber, followed by velocity of grain fed, then mass of grain fed. In order to make the deposition chamber reach optimum performance to clean super rice under the mass of grain fed of 3.78kg/s in combine harvester, factors in the regression mathematical models were optimized to obtain the optimal parameters as inlet airflow velocity of deposition chamber of 13.93m/s, velocity of grain fed of 18.84m/s with cleaning rate of grain out of the deposition chamber of 90.26% and airflow pressure drop in the deposition chamber of 350.36Pa. The verified experimental results were that cleaning rate of grain out of the deposition chamber of 90.1% and airflow pressure drop in the deposition chamber of 3483Pa,which were consistent with the optimized results. The results offer the information to improve the performance of the deposition chamber to clean super rice in stripper combine harvester.

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蔣恩臣,孫占峰,潘志洋,王立軍.超級(jí)稻摘穗收獲機(jī)沉降箱性能分析與運(yùn)行參數(shù)優(yōu)化[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2015,46(1):100-105. Jiang Enchen, Sun Zhanfeng, Pan Zhiyang, Wang Lijun. Performance Analysis and Operational Parameters Optimization of Deposition Chamber to Clean Super Rice in Stripper Combine Harvester[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(1):100-105.

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  • 收稿日期:2014-02-18
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  • 在線發(fā)布日期: 2015-01-10
  • 出版日期: 2015-01-10
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