| 王旭东1，2，陈冠礼3，凌 轩1，罗琴芳2.勺链式马铃薯播种机排种器性能试验[J].广东农业科学,2018,45(9):129-133 |
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勺链式马铃薯播种机排种器性能试验 |
| Performance experiment of spoon-chain type potato seed-metering device |
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| DOI：10.16768/j.issn.1004-874X.2018.09.021 |
| 中文关键词: 马铃薯 勺链式排种器 漏播率 重播率 模型优化 |
| 英文关键词: potato spoon-chain type seed-metering device miss-seeding rate multiple seed rate model
optimization |
| 基金项目:广东省科技计划项目（2016A040403117） |
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| 摘要点击次数: 2046 |
| 全文下载次数: 958 |
| 中文摘要: |
| 中小型马铃薯播种机普遍采用勺链式排种器。链传动的多边形效应导致勺链式马铃薯播种
机排种器的漏播现象随着机具作业速度的提高更加明显；切块薯种尺寸跨度较大，小尺寸薯种较多时重
播率增大。针对上述问题，在实验室搭建了勺链式排种器试验台，以机具前进速度和薯种大小为试验因
素、漏播率和重播率为试验指标，进行旋转正交试验回归分析，利用软件Design-Expert8.0.6对回归模型优
化求解。结果表明，机具前进速度为2.44 km/h、薯种大小为41.34 mm时，漏播率和重播率的最优解分别为
3.54%和5.52%。该研究为勺链式马铃薯播种机田间作业参数的确定提供了参考。 |
| 英文摘要: |
| The spoon-chain type seed-metering device is widely-used in the middle and small size potato
planter. Due to the polygon effect of chain transmission, the miss-seeding phenomenon of the seed-metering device
is more obviously when the potato planter speed increase. The multiple seed increased when the smaller potato-seed
was more than the bigger potato-seed in the seed case. Aiming at these problems, based on the speed of the machine
and the size of the potato-seed as the test factors, the miss-seeding rate and the multiple seed rate as the test indexes,
we set up the seed-meter test platform in the lab and made quadratic orthogonal rotary regression experiment. The
experimental data were processed and optimized by software Design-Expert 8.0.6. The test result showed that optimal
solution of the miss-seeding rate and the multiple seed rate was respectively 3.54% and 5.52% when the speed of the
machine was 2.44 km/h and the size of the potato-seed was 41.34 mm. The research would provide field operation
parameters for the spoon-chained type seed-metering device of potato planter. |
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