| 气力式水稻单粒精密播种机选种机构的设计与试验 |
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| 引用本文： | 李庆荣,杨丹彤,夏红梅,李志伟,李俊松.气力式水稻单粒精密播种机选种机构的设计与试验[J].农机化研究,2009,31(1). |
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| 作者姓名： | 李庆荣 杨丹彤 夏红梅 李志伟 李俊松 |
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| 作者单位： | 1. 广州城市职业学院,广州,510405
2. 华南农业大学,工程学院,广州,510642 |
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| 基金项目： | 广州城市职业学院实用新型专利资助项目 |
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| 摘 要： | 提出了一种新型气力式水稻单粒精密播种工作原理,对实现单粒选种的选种机构进行设计和试验研究。确定种子在选种杆顶端凹槽内侧卧填充有利于单粒选种,选种杆横截面为椭圆,长轴为11mm,短轴为7mm,顶端设计45°倒角。选种初始选种杆顶端与选种箱底部距离为6mm,选种杆顶端凹槽宽2.3mm,深1.5mm,选种杆顶起的次数为3次时,综合播种效果最好。
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| 关 键 词： | 水稻 播种机 选种机构 |
Design and Experimental Study on Seed-selection Mechanism of a Pneumatic Rice Precision Seeder for Single Seeding |
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| Li Qingrong,Yang Dantong,Xia Hongmei,Li Zhiwei,Li Junsong.Design and Experimental Study on Seed-selection Mechanism of a Pneumatic Rice Precision Seeder for Single Seeding[J].Journal of Agricultural Mechanization Research,2009,31(1). |
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| Authors: | Li Qingrong Yang Dantong Xia Hongmei Li Zhiwei Li Junsong |
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| Abstract: | In this paper a new type of precision sowing scheme was put forward,and a special single-seed selection mechanism was designed and tested.For only choosing one seed on a selection bar,seeds should be filled in the grooves along width direction.Cross section shape of the seed-selection bar is ellipse,the major axis is 11 millimeter,the minor axis is 7 millimeter,and 45 bevel is chamfered on its top end.The distance between top end of the seed-selection bar and bottom of the seed-selection case is 6 millimeter at the beginning of seed selection.The best comprehensive sowing effect can be gotten when the groove on the top end of the seed-selection bar is 2.3 millimeter width and 1.5 millimeter depth,and the seed-selection bar move three times in a sowing period. |
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| Keywords: | rice seeder seed-selection mechanism |
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