双仓转盘式棉花竖直圆盘穴播排种器设计与试验

S223.2; 针对棉花竖直圆盘穴播排种器充种性能差、破损率高等问题,结合棉花穴播农艺,设计了一种双仓转盘式棉花竖直圆盘穴播排种器.介绍了穴播排种器结构组成及工作原理,设计计算了取种盘结构参数,对充种区和转运区临界状态棉种进行受力分析,建立力学模型,分析说明了窝孔安置角和取种盘转速对充种性能的影响,得出棉种临界破损状态时,取种盘和种子间隔圈的最小配合间隙为1.47 mm.以取种盘转速、窝孔安置角、排种间隙为试验因素,单粒率、破损率为响应指标,利用穴播器试验台开展响应面试验,并利用Design-Expert8.0进行多目标寻优.结果表明,3个因素对单粒率的影响大小顺序依次为窝孔安置角,排种间隙,...

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Published in农业工程学报 Vol. 37; no. 19; pp. 27 - 36
Main Authors 张学军, 陈勇, 史增录, 靳伟, 张海涛, 付浩, 王堆金
Format Journal Article
LanguageChinese
Published 新疆智能农业装备重点实验室,乌鲁木齐 830052%新疆农业大学机电工程学院,乌鲁木齐 830052%新疆天诚农机具制造有限公司,铁门关 841007 01.10.2021
新疆农业大学机电工程学院,乌鲁木齐 830052
Subjects
农业机械;试验;优化;穴播排种器;棉花;精量穴播
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ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2021.19.004

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Abstract S223.2; 针对棉花竖直圆盘穴播排种器充种性能差、破损率高等问题,结合棉花穴播农艺,设计了一种双仓转盘式棉花竖直圆盘穴播排种器.介绍了穴播排种器结构组成及工作原理,设计计算了取种盘结构参数,对充种区和转运区临界状态棉种进行受力分析,建立力学模型,分析说明了窝孔安置角和取种盘转速对充种性能的影响,得出棉种临界破损状态时,取种盘和种子间隔圈的最小配合间隙为1.47 mm.以取种盘转速、窝孔安置角、排种间隙为试验因素,单粒率、破损率为响应指标,利用穴播器试验台开展响应面试验,并利用Design-Expert8.0进行多目标寻优.结果表明,3个因素对单粒率的影响大小顺序依次为窝孔安置角,排种间隙,取种盘转速.对破损率影响的大小顺序依次为取种盘转速,排种间隙,窝孔安置角.最优排种组合为取种盘转速23.9 r/min,窝孔安置角31.7°,排种间隙2.08 mm.对最优排种组合进行田间验证试验,分别将取种盘转速、窝孔安置角、排种间隙修定为24 r/min、32°、2.0 mm,得到单粒率为94.3％,破损率0.09％,试验指标满足国家标准,该研究可为棉花双仓转盘式竖直圆盘穴播排种器的结构设计、优化提供参考.
AbstractList S223.2; 针对棉花竖直圆盘穴播排种器充种性能差、破损率高等问题,结合棉花穴播农艺,设计了一种双仓转盘式棉花竖直圆盘穴播排种器.介绍了穴播排种器结构组成及工作原理,设计计算了取种盘结构参数,对充种区和转运区临界状态棉种进行受力分析,建立力学模型,分析说明了窝孔安置角和取种盘转速对充种性能的影响,得出棉种临界破损状态时,取种盘和种子间隔圈的最小配合间隙为1.47 mm.以取种盘转速、窝孔安置角、排种间隙为试验因素,单粒率、破损率为响应指标,利用穴播器试验台开展响应面试验,并利用Design-Expert8.0进行多目标寻优.结果表明,3个因素对单粒率的影响大小顺序依次为窝孔安置角,排种间隙,取种盘转速.对破损率影响的大小顺序依次为取种盘转速,排种间隙,窝孔安置角.最优排种组合为取种盘转速23.9 r/min,窝孔安置角31.7°,排种间隙2.08 mm.对最优排种组合进行田间验证试验,分别将取种盘转速、窝孔安置角、排种间隙修定为24 r/min、32°、2.0 mm,得到单粒率为94.3％,破损率0.09％,试验指标满足国家标准,该研究可为棉花双仓转盘式竖直圆盘穴播排种器的结构设计、优化提供参考.
Author 张学军
张海涛
付浩
王堆金
陈勇
靳伟
史增录
AuthorAffiliation 新疆农业大学机电工程学院,乌鲁木齐 830052;新疆智能农业装备重点实验室,乌鲁木齐 830052%新疆农业大学机电工程学院,乌鲁木齐 830052%新疆天诚农机具制造有限公司,铁门关 841007
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Author_FL Wang Duijin
Fu Hao
Zhang Haitao
Chen Yong
Zhang Xuejun
Jin Wei
Shi Zenglu
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Title 双仓转盘式棉花竖直圆盘穴播排种器设计与试验
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