| 滑切型自激振动减阻深松装置设计与试验 |
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| 引用本文： | 周华,张文良,杨全军,李东东,夏俊芳.滑切型自激振动减阻深松装置设计与试验[J].农业机械学报,2019,50(5):71-78. |
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| 作者姓名： | 周华 张文良 杨全军 李东东 夏俊芳 |
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| 作者单位： | 华中农业大学工学院;农业农村部长江中下游农业装备重点实验室 |
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| 基金项目： | 公益性行业（农业）科研专项经费项目（201503136）和国家重点研发计划项目（2017YFD0301300） |
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| 摘 要： | 针对长江中下游地区黏重土壤深松作业阻力大的问题,基于滑切和自激振动减阻的原理,设计了滑切型自激振动深松装置。对滑切型铲柄的滑切角及刃口角进行了分析及参数设计,通过有限元分析,表明铲柄强度符合设计要求,自激振动弹簧采用内外双弹簧以减小自激振动装置的结构尺寸。土槽对比试验表明,固定连接方式滑切型深松铲在各速度下相对于传统弧形深松铲减阻7. 79%～8. 81%,自激振动连接方式滑切型深松铲在各速度下相对于传统弧形深松铲减阻15. 45%～20. 05%。田间性能试验表明,深松后各深度下土壤坚实度下降显著,0～10 cm、10～20 cm和20～30 cm深度下土壤坚实度分别减小78. 18%、56. 08%和62. 72%;深松后各深度下土壤容重下降14. 66%～20. 81%,土壤含水率在0～10 cm略有下降,在10～20 cm和20～30 cm略有上升;土壤扰动系数均值为60. 8%,土壤蓬松度均值为11. 9%;深松深度及其稳定性系数符合行业标准,滑切型自激振动深松装置作业质量总体满足作业要求。
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| 关 键 词： | 黏重土壤 滑切 深松 自激振动 减阻 |
| 收稿时间： | 2018/10/15 0:00:00 |
Design and Experiment of Sliding Cutting Self-excited Vibration Drag Reduction Subsoiling Device |
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| ZHOU Hu,ZHANG Wenliang,YANG Quanjun,LI Dongdong and XIA Junfang.Design and Experiment of Sliding Cutting Self-excited Vibration Drag Reduction Subsoiling Device[J].Transactions of the Chinese Society of Agricultural Machinery,2019,50(5):71-78. |
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| Authors: | ZHOU Hu ZHANG Wenliang YANG Quanjun LI Dongdong and XIA Junfang |
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| Institution: | Huazhong Agricultural University;Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs,Huazhong Agricultural University;Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs,Huazhong Agricultural University;Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs,Huazhong Agricultural University;Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs and Huazhong Agricultural University;Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs |
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| Abstract: | |
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| Keywords: | clay soil sliding cutting subsoiling self excited vibration drag reduction |
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