| 牧草小区播种机排种器的设计及试验 |
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| 引用本文： | 杨 松,张淑敏,易金涛,翁 强.牧草小区播种机排种器的设计及试验[J].农业工程学报,2012,28(26):72-77. |
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| 作者姓名： | 杨 松 张淑敏 易金涛 翁 强 |
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| 作者单位： | 中国农业大学工学院，北京 100083;中国农业大学工学院，北京 100084;中国农业大学工学院，北京 100085;中国农业大学工学院，北京 100086 |
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| 基金项目： | pecial Fund for Agro-scientific Research in the Public Interest. Item number: 201203024. |
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| 摘 要： | 摘要：为了研制适用于优良牧草栽培的牧草小区播种机，设计制作了牧草小区播种机排种器试验台。该试验台有一专门设计的转动机构和一个可调节的排种环。送种机构中的多个送种杯中的种子可以依次喂入排种系统，且分种锥旋转一周时，一个送种杯内的种子恰好播完。对种子在存种筒内的受力、运动过程和排种口尺寸的关系做了分析。试验台的排种正交试验表明，格盘插片的数量是影响种子分散均匀性变异系数的主要因素。当格盘数目为12，导流槽个数为9，并采用高丹草为试验对象时，均匀性变异系数为最小值16.46%。该文的研究可为牧草小区播种机的研究提供参考。
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| 关 键 词： | 农业机械，机构，受力分析，小区播种机，牧草培育 |
| 收稿时间： | 2012/6/20 0:00:00 |
| 修稿时间： | 2012/9/19 0:00:00 |
Development and experiment of seed metering for grass plot seeder |
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| Yang Song,Zhang Shumin,Yi Jintao and Weng Qiang.Development and experiment of seed metering for grass plot seeder[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(26):72-77. |
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| Authors: | Yang Song Zhang Shumin Yi Jintao and Weng Qiang |
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| Abstract: | In order to develop a grass plot seeder, which is suitable for cultivation of fine grass varieties, a seed metering test platform was developed which has a special designed transmission mechanism and a seed cup with an adjustable ring. Several kinds of seeds can be fed by feeding mechanism in feeding cup when seeding shaft as well as distributor cone rotates one complete revolution. Seed motion and the relationship between seed outlet and seed cup were analyzed in this paper. Result of orthogonal experiment showed that the number of sweeper blades was one of the main influencing factors of the variation coefficient of seeding uniformity. When 12 sweeper blades and 9 grooves cone were used in test, the variation coefficient of the Pacesetter's seeding uniformity got to the minimum value 16.46%. This research provides a reference for grass plot seeder's development. |
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| Keywords: | agricultural machinery mechanisms stress analysis plot seeder grass cultivation |
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