| 小麦免耕播种机驱动链式防堵装置设计 |
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| 引用本文： | 张喜瑞,何进,李洪文,李问盈.小麦免耕播种机驱动链式防堵装置设计[J].农业机械学报,2009,40(10):44-48. |
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| 作者姓名： | 张喜瑞 何进 李洪文 李问盈 |
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| 作者单位： | 中国农业大学工学院,北京,100083 |
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| 基金项目： | 中-澳合作项目(SMC/2002/094);;中国农业大学科研启动基金资助项目(2007028) |
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| 摘 要： | 针对我国华北一年两熟地区玉米秸秆覆盖量多,小麦免耕播种易堵塞的问题,提出了驱动拨指链抛茬和刀刃型开沟器切茬相结合的新型防堵原理,设计了免耕播种机驱动链式防堵装置。通过分析防堵装置的运动过程,确定了驱动链、拨指和刀刃型开沟器等关键部件的参数。田间试验表明,驱动链式防堵装置能够有效解决秸秆堵塞问题,保证小麦免耕播种机的通过性。由于及时清除刀刃型开沟器前方的玉米秸秆残茬,开沟阻力降低了12.3%。相比条带旋耕式小麦播种机,驱动链式小麦免耕播种机在保证种肥情况的同时,土壤扰动量减少了66.4%,油耗降低了8.07%,较好地满足了当地的农艺要求。
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| 关 键 词： | 小麦 免耕播种机 保护性耕作 驱动链式 防堵 |
the Powered-chain Anti-blocking Mechanism for Wheat No-till Planter |
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| Zhang Xirui,He Jin,Li Hongwen,Li Wenying.the Powered-chain Anti-blocking Mechanism for Wheat No-till Planter[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(10):44-48. |
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| Authors: | Zhang Xirui He Jin Li Hongwen Li Wenying |
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| Institution: | College of Engineering;China Agricultural University;Beijing 100083;China |
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| Abstract: | This paper put forward the new anti-blocking principle combining residue-throwing by powered-chain finger and residue-cutting by knife type opener,and designed the powered chain anti-blocking mechanism for no-till planter according to the problem of residue blocking of no-till wheat planting in heavy corn residue cover fields in annual double cropping areas of North China plain.Furthermore,the key parameters for powered-chain,chain finger and knife type opener were determined based on the analyses of the mo... |
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| Keywords: | Wheat No-till planter Conservation tillage Powered-chain Anti-blocking |
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