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机械毕业设计论文
目 录
1 绪论
1.1 选题的目的和意义························································…………………····3
1.2 本课题在国内外的研究状况···············································…………………3
1.3 课题研究的内容及拟采取的技术、方法································………………4
2 育秧钵机的用途和设计要求
2.1 用途···············································································………………..5
2.2 设计要求·········································································………………..5
3 方案确定
3.1 工艺分析·········································································…………………7
3.1.1最早的手工制秧钵的方法· ·············································……………….7
3.1.2运动机构 ·····························································………………..9
3.1.3对各运动机构的要求 ·····················································……………..10
3.2 拟定机器的工作原理图和运动循环图 ······························ ………………..11
3.3 方案确定 ····························································………………..12
3.3.1模孔转盘方案的讨论 ···················································…………………13
4 运动设计与动力计算
4.1 电动机的选择·······························································…………………..15
4.1.1电动机的功率确定 ······················································………………….15
4.1.2选择电动机 ·······························································…………………..16
4.2 确定各传动机构的传动比···············································…………………….16
4.3 计算各轴的转速和功率···················································…………………..17
5 结构设计
5.1 模孔转盘齿轮结构 ···················································…………………..19
5.2 转盘齿轮的结构和尺寸 ············································………………19
5.3 曲柄（偏心轮）滑块（滑杆）机构的设计 ·························……………..20
5.4 锥齿轮的结构和尺寸设计···············································…………………..23
5.5 直齿圆柱齿轮的结构 ················································……………………26
5.6 带轮的的结构设计 ·············································…………………27
5.7 轴的结构设计 ·························································……………….29
5.8 绘制总装配图 ··················································
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