| 马铃薯微型种薯种植机双侧位深施肥装置设计与试验 |
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| 引用本文： | 刘文政,何进,李洪文,魏忠彩,张振国,李学强.马铃薯微型种薯种植机双侧位深施肥装置设计与试验[J].农业机械学报,2020,51(1):56-65. |
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| 作者姓名： | 刘文政 何进 李洪文 魏忠彩 张振国 李学强 |
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| 作者单位： | 中国农业大学工学院,北京100083;山东省马铃薯生产装备智能化工程技术研究中心,德州253600;山东省马铃薯生产装备智能化工程技术研究中心,德州253600;山东希成农业机械科技有限公司,德州253600 |
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| 基金项目： | 山东省泰山产业领军人才工程高效生态农业创新项目（LJNY201615）和教育部创新团队发展计划项目（IRT13039） |
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| 摘 要： | 基于前期设计的马铃薯微型种薯(简称"微型薯")播种机,结合微型薯种植农艺特点,设计了一种单行薯双侧位深施肥装置,并对其关键部件排肥器和施肥开沟器进行分析。采用运动学理论分析了颗粒肥料在排肥器内的运动特性,并通过离散元仿真模拟研究了不同螺距下排肥器排肥情况,以确定较佳的螺距;采用力学理论对施肥开沟器进行分析,明确开沟圆盘等设计参数。机具静态试验表明,排肥器间的排肥均匀性变异系数为2.29%,排肥器排肥稳定性较好;田间试验结果表明,肥料与种薯间的平均横向间距为51.2 mm,平均纵向间距为63.5 mm,施肥装置的整体施肥作业性能满足农艺要求。
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| 关 键 词： | 马铃薯 种植机 排肥器 开沟器 性能试验 |
| 收稿时间： | 2019/8/14 0:00:00 |
Design and Experiment of Double-side Deep Fertilizing Device for Potato Micro-seed Planter |
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| LIU Wenzheng,HE Jin,LI Hongwen,WEI Zhongcai,ZHANG Zhenguo and LI Xueqiang.Design and Experiment of Double-side Deep Fertilizing Device for Potato Micro-seed Planter[J].Transactions of the Chinese Society of Agricultural Machinery,2020,51(1):56-65. |
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| Authors: | LIU Wenzheng HE Jin LI Hongwen WEI Zhongcai ZHANG Zhenguo and LI Xueqiang |
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| Institution: | China Agricultural University;Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment,China Agricultural University;Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment,China Agricultural University;Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment,China Agricultural University;Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment,China Agricultural University;Shandong Provincial Intelligent Engineering and Technology Research Center for Potato Production Equipment and Shandong Xicheng Agricultural Machinery Science and Technology Co., Ltd. |
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| Abstract: | Aiming at promoting the research of mechanical fertilization in potato micro-seed planting, and enhancing the development level of potato industry in China, a kind of fertilizing device corresponding to the former designed potato micro-seed planter was developed. The fertilizing device mainly consisted of a fertilizer box, four fertilizer feeders, eight fertilizer guiding tubes and eight fertilizing openers. Combining with kinematic analysis and discrete element simulation, the whole structure of fertilizer feeder was designed and key parameters were confirmed. The length of spiral blade at single-rotation was 120mm, the outer diameter and pitch of spiral blade was 56mm and 45mm, respectively. The whole structure of fertilizing opener was designed, and parameters of the key parts such as ditching discs and tension spring were determined by theoretic analysis. For ditching discs, the diameter was 350mm, the angle between ditching discs at the place of cluster point was 60°, and the angle between ditching discs was 10°. As indicated in the static experiment of machine, the CV of uniformity of fertilizer discharge was 2.29%. Results showed that fertilizer feeders had good stability for fertilizer discharge. Furthermore, in order to test the performance of the whole fertilizing device, field experiment was conducted. Results showed that the mean horizontal and vertical spacing between fertilizer and potato seeds were 51.2mm and 63.5mm, respectively, which can be confirmed that the overall fertilization performance of the fertilizing device met the agronomic requirements. |
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| Keywords: | potato seeder fertilizing device opener performance experiment |
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