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氣吸滾筒式玉米植質(zhì)缽盤精密播種裝置優(yōu)化設(shè)計(jì)與試驗(yàn)
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國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2017YFD0700705)和糧食副產(chǎn)物加工與利用教育部工程研究中心和黑龍江八一農(nóng)墾大學(xué)三橫三縱支持計(jì)劃項(xiàng)目(TDJH201803)


Optimization Design and Test of Suction Derformance of Air Suction Cylinder Type Precise Seeding Device for Maize with Plant Material Bowl-tray
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    摘要:

    為適應(yīng)玉米植質(zhì)缽育農(nóng)藝對(duì)播種機(jī)的要求,設(shè)計(jì)了氣吸滾筒式玉米植質(zhì)缽盤精密播種裝置,。通過理論分析建立了種子吸種過程的動(dòng)力學(xué)模型,,得到影響吸種性能的主要因素為負(fù)壓、前進(jìn)速度,、充種角,。對(duì)吸種過程進(jìn)行模擬仿真設(shè)計(jì),進(jìn)一步確定了影響種子吸附的主要因素,。最后進(jìn)行了播種裝置性能試驗(yàn),,以合格指數(shù)、漏播指數(shù),、重播指數(shù)為分析指標(biāo),,通過三因素四水平正交試驗(yàn)得出最優(yōu)參數(shù)組合為:前進(jìn)速度0.22m/s、負(fù)壓1200Pa,、充種角20°,,在此條件下進(jìn)行了驗(yàn)證試驗(yàn),得出合格指數(shù)為90.48%,、漏播指數(shù)為4.24%,、重播指數(shù)為5.28%,結(jié)果表明該播種裝置滿足播種機(jī)的播種要求,。

    Abstract:

    In order to meet the requirements of plant material bowl seeding agronomy on the seeder, a reasonable structure of air suction cylinder type precise seeding device for maize with plant material bowl tray has been designed. The structural parameters of key components are determined by theoretical analysis. The dynamic model of seed suction process is established. The main factors affecting the suction performance indicators are the negative pressure, the forward speed and the suction angle. The simulation design was carried out to determine the influencing factors further. Finally, the performance test of the seeding device was carried out. The orthogonal test of three factors and four levels was adopted taking the qualified rate, missing seeding rate and the repetition rate as the performance indexes. The results showed that the main factors affecting the qualified index were negative pressure, forward speed and seed suction angle. The primary and secondary factors affecting the missing seeding index were negative pressure, suction angle and forward speed; the primary and secondary factors affecting the replay index were ngative pressure, forward speed and seed suction angle. The optimal parameter combination is that the forward speed is 0.22m/s, the negative pressure is 1200Pa and the suction angle is 20°. Under this condition, the qualified index is 90.48%, the missing sowing index is 4.24% and the replaying index is 5.28%, which meet the design requirements.The average performance index in this paper is different from the national standard. After many experiments, it is found that the population flow characteristics in the seed box have certain influence on the seed filling performance, and then affect the seeding performance of the device. The impact of liquidity needs to be further studied in the future.

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張昆,衣淑娟,劉海軍,孫浩,馬永財(cái).氣吸滾筒式玉米植質(zhì)缽盤精密播種裝置優(yōu)化設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2021,52(4):62-69. ZHANG Kun, YI Shujuan, LIU Haijun, SUN Hao, MA Yongcai. Optimization Design and Test of Suction Derformance of Air Suction Cylinder Type Precise Seeding Device for Maize with Plant Material Bowl-tray[J]. Transactions of the Chinese Society for Agricultural Machinery,2021,52(4):62-69.

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  • 收稿日期:2020-07-27
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  • 在線發(fā)布日期: 2021-04-10
  • 出版日期: 2021-04-10
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