| 鸭嘴式成穴器的选型与研究 |
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| 引用本文： | 孙伟,吴建民. 鸭嘴式成穴器的选型与研究[J]. 甘肃农业大学学报, 2009, 44(5) |
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| 作者姓名： | 孙伟 吴建民 |
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| 作者单位： | 甘肃农业大学工学院,甘肃,兰州,730070 |
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| 摘 要： | 鸭嘴式成穴器的形状直接影响着穴播轮的入土性能,常见的鸭嘴形状有楔形和锥形2种,本研究对成穴器的2种鸭嘴形状入土性能所成穴孔大小及动土量方面的影响进行了比较.结果表明:不论是从入土难易程度还是从所成穴孔大小或是动土量多少来看,锥形鸭嘴都要优于楔形鸭嘴;鸭嘴前角的存在,使穴孔增大,鸭嘴后角的大小,影响鸭嘴出土时的动土量,有利于覆土.
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| 关 键 词： | 楔形鸭嘴 锥形鸭嘴 入土性能 |
Shape select and study on the duck-rostra type punching-opener |
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| SUN Wei,Wu Jian-min. Shape select and study on the duck-rostra type punching-opener[J]. Journal of Gansu Agricultural University, 2009, 44(5) |
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| Authors: | SUN Wei Wu Jian-min |
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| Affiliation: | SUN Wei,Wu Jian-min(College of Engineering,Gansu Agricultural University,Lanzhou 730070,China) |
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| Abstract: | The shape of the duck-rostra type punching-opener affects penetrating performance of sowing wheel,there are two shapes of duck-rostra in common use,they are cuneiform duck rostra and taper duck-rostra.In this study,penetrating performances of two punching-opener with different duck-rostra were compared.The results showed that taper duck-rostra was superior to cuneiform duck-rostra no matter from the difficult degree of entering soil or the size of soil hole.The existence of front angle enlarged the soil hol... |
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| Keywords: | cuneiform duck-rostra taper duck-rostra penetrating performance |
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