立辊式玉米收获割台夹持输送装置设计与试验

S225.5+1; 针对现有立辊式玉米收获机割台夹持输送装置存在的夹持稳定性差、断茎率高等问题,该研究基于立辊式玉米割台摘穗特点,设计了一种夹持输送间隙随植株茎秆粗细自适应调节的夹持输送装置.该装置由分禾机构和夹持输送机构组成,分禾机构保证玉米植株的单株有序喂入,并辅助往复式切割器完成植株根部的切割;夹持输送机构实现切断植株在立辊式割台上的有效夹持和输送.通过对拨禾喂入过程植株的运动分析以及夹持切割和夹持输送过程植株的姿态变化规律分析,确定夹持输送装置有效拨禾段链条长度为 500 mm,夹持输送机构轨道长度为 1 100 mm,割台最大夹持输送量为 3株,夹持轨道间的垂直距离为 40 mm,两...

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Published in农业工程学报 Vol. 39; no. 9; pp. 34 - 43
Main Authors 辛尚龙, 赵武云, 石林榕, 戴飞, 冯斌, 闫治斌, 吕德玉
Format Journal Article
LanguageChinese
Published 甘肃农业大学机电工程学院,兰州730070%甘肃省敦煌种业集团股份有限公司,酒泉735000%山东金大丰机械有限公司,济宁272114 01.05.2023
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ISSN1002-6819
DOI10.11975/j.issn.1002-6819.202211036

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Abstract S225.5+1; 针对现有立辊式玉米收获机割台夹持输送装置存在的夹持稳定性差、断茎率高等问题,该研究基于立辊式玉米割台摘穗特点,设计了一种夹持输送间隙随植株茎秆粗细自适应调节的夹持输送装置.该装置由分禾机构和夹持输送机构组成,分禾机构保证玉米植株的单株有序喂入,并辅助往复式切割器完成植株根部的切割;夹持输送机构实现切断植株在立辊式割台上的有效夹持和输送.通过对拨禾喂入过程植株的运动分析以及夹持切割和夹持输送过程植株的姿态变化规律分析,确定夹持输送装置有效拨禾段链条长度为 500 mm,夹持输送机构轨道长度为 1 100 mm,割台最大夹持输送量为 3株,夹持轨道间的垂直距离为 40 mm,两夹持链条间的夹持间隙可调节范围为 16~40 mm.采用响应曲面法分析了收获机前进速度、主动链轮转速、割台倾角和植株喂入角对夹持输送装置作业性能的影响.试验结果表明,当收获机前进速度为 2.8 m/s、主动链轮转速 1 210 r/min、割台倾角 18°、植株喂入角为 60°时,果穗总损失率为 0.83%,断茎率为0.12%;相比现有普通夹持输送装置,果穗总损失率和断茎率分别由 2.80%和 0.98%降低到 0.83%和 0.12%,分别降低了30%和12%.研究结果可为立辊式玉米收获割台的优化改进提供理论依据和参考.
AbstractList S225.5+1; 针对现有立辊式玉米收获机割台夹持输送装置存在的夹持稳定性差、断茎率高等问题,该研究基于立辊式玉米割台摘穗特点,设计了一种夹持输送间隙随植株茎秆粗细自适应调节的夹持输送装置.该装置由分禾机构和夹持输送机构组成,分禾机构保证玉米植株的单株有序喂入,并辅助往复式切割器完成植株根部的切割;夹持输送机构实现切断植株在立辊式割台上的有效夹持和输送.通过对拨禾喂入过程植株的运动分析以及夹持切割和夹持输送过程植株的姿态变化规律分析,确定夹持输送装置有效拨禾段链条长度为 500 mm,夹持输送机构轨道长度为 1 100 mm,割台最大夹持输送量为 3株,夹持轨道间的垂直距离为 40 mm,两夹持链条间的夹持间隙可调节范围为 16~40 mm.采用响应曲面法分析了收获机前进速度、主动链轮转速、割台倾角和植株喂入角对夹持输送装置作业性能的影响.试验结果表明,当收获机前进速度为 2.8 m/s、主动链轮转速 1 210 r/min、割台倾角 18°、植株喂入角为 60°时,果穗总损失率为 0.83%,断茎率为0.12%;相比现有普通夹持输送装置,果穗总损失率和断茎率分别由 2.80%和 0.98%降低到 0.83%和 0.12%,分别降低了30%和12%.研究结果可为立辊式玉米收获割台的优化改进提供理论依据和参考.
Author 赵武云
吕德玉
戴飞
冯斌
辛尚龙
闫治斌
石林榕
AuthorAffiliation 甘肃农业大学机电工程学院,兰州730070%甘肃省敦煌种业集团股份有限公司,酒泉735000%山东金大丰机械有限公司,济宁272114
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ZHAO Wuyun
XIN Shanglong
LYU Deyu
SHI Linrong
YAN Zhibin
FENG Bin
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DocumentTitle_FL Design and experiments of the clamping and conveying device for the vertical roller type corn harvesting header
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Keywords agricultural machinery
玉米
收获割台
harvest header
试验
corn
clamping and conveying device
立辊式
设计
experiment
夹持输送装置
design
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Snippet S225.5+1; 针对现有立辊式玉米收获机割台夹持输送装置存在的夹持稳定性差、断茎率高等问题,该研究基于立辊式玉米割台摘穗特点,设计了一种夹持输送间隙随植株茎秆粗细自适应...
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Title 立辊式玉米收获割台夹持输送装置设计与试验
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