圆锥滚筒式水稻种子清选机设计毕业设计说明书（机械CAD图纸）.doc

圆锥滚筒式水稻种子清选机设计毕业设计说明书（机械CAD图纸）

本科机械毕业设计论文CAD图纸QQ401339828

目录

摘要.................................................................1关键词...............................................................11前言...............................................................21.1研究的背景、目的和意义...........................................21.2国内外研究现状...................................................32总体方案的确定.....................................................4

2.1初步设计方案.....................................................42.2结构及工作原理...................................................42.2.1基本结构.......................................................42.2.2工作原理.......................................................42.2.3传动系统.......................................................53设计适合分选的圆锥窝眼滚筒.........................................53.1初选分选筒参数...................................................5

本科机械毕业设计论文CAD图纸QQ401339828

3.2籽粒在圆锥滚筒的初步运动分析.....................................53.3确定分选筒参数...................................................74籽粒在圆锥滚筒中的动力学分析.......................................74.1分选筒内长粒种子动力学分析.......................................74.1.1长粒种子径向动力学分析.........................................74.1.2长粒种子轴向动力学分析.........................................84.2短粒种子动力学分析..............................................104.2.1分选筒内短粒种子径向动力学分析................................104.2.2承种槽内短粒种子轴向动力学分析................................114.3结论............................................................125主要技术参数......................................................126主要零部件工作参数................................................136.1电动机的选择....................................................136.2传动装置的运动和动力参数........................................136.3传动的设计......................................................146.3.1主轴V带传动的设计............................................146.3.2圆锥滚筒V带传动的设计.................