毕设论文--苗秧分钵器的设计

目 录 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc356567972" 摘要 PAGEREF _Toc356567972 \h 1HYPERLINK \l

目 录 摘要 ...................................................................... 1 关键词 .................................................................... 1 Abstract .................................................................. 1 Keywords ................................................................. 1 引言 ...................................................................... 2 1国内外移栽机的发展现状和发展趋势 ....................................... 2 1．1国内外发展现状 ...................................................... 2 1．2发展趋势 ............................................................ 3 2国内外几种典型移栽机的介绍和比较 ....................................... 4 2．1典型移栽机介绍 ...................................................... 4 2．1．1导苗管式秧苗栽植机 ............................................... 5 2．1．2吊杯式移栽机 ..................................................... 7 2．1．3挠性圆盘式移栽机 ................................................. 7 2．2几种典型移栽机的优缺点比较 .......................................... 7 2．3目前存在的问题及方案的设计确立 ...................................... 8 3分钵轮的样机设计与理论分析 ............................................. 8 3．1栽植机的性能指标 .................................................... 8 3．2方案概况 ............................................................ 8 3．3移栽机喂入机构受力分析 ............................................. 10 3．3．1输送带倾斜式的受力分析 .......................................... 10 3．3．2输送带在喂入时的受力分析 ........................................ 11 3．3．3人工推送钵苗时的受力分析 ........................................ 12 4分钵轮选型和秒针型分钵轮 ............................................. 13 4．1分钵轮的选型 ....................................................... 13 4．2秒针型分钵轮的设计 ................................................. 14 4．3秒针型分钵轮的理论分析 ............................................. 16 结论及展望 ............................................................... 17 参考文献 ................................................................. 18 致谢 ..................................................................... 19