二级展开式斜齿圆柱齿轮减速器_课程设计说明书精选.docVIP

机械设计课程设计 计算说明书 设计题目 二级展开式斜齿圆柱齿轮减速器 目 录 机械设计课程设计任务书······················································1 系统总体方案设计···································································2 一、确定传动方案··································································2 二、机械传动装置的总体设计··············································2 V带传动的设计········································································5 一、V带的基本参数································································5 二、带轮结构的设计·······························································8 减速器内传动的设计································································9 一、高速级斜齿圆柱齿轮的设计···········································9 二、低速级斜齿圆柱齿轮的设计···········································14 三、斜齿圆柱齿轮上作用力的计算·······································19 轴的设计·····················································································20 一、中间轴的设计与计算·······················································20 二、高速轴的设计与计算·······················································28 三、低速轴的设计与计算·······················································35 箱体的整体设计及其附件的选用··········································42 一、箱体的结构设计·······························································42 二、减速器附件·······································································43 三、减速器润滑及密封形式的选择·······································44 参考文献······························································································45 机械设计课程设计任务书 一、设计题目： 带式输送机传动装置设计 工作条件： 某带式运输机，输送物品为粉粒物（如煤、砂等）、单向传动，工作中载荷平稳，滚筒效率0.96，工作年限10年，大修期限3年，每年工作300天，两班制工作，工作机允许速度误差+5%，在专门小工厂批量生产。 原始数据： 运输机工作拉力 (N) 1400 输送带速度 () 2.4 卷筒直径 () 270 两级圆柱齿轮减速器简图 1－电动机轴；2—电动机；3—带传动中间轴；4—高速轴；5—高速齿轮传动 6—中间轴；7—低速齿轮传动；8—低速轴；9—工作机； 二、应完成的工作： 减速器装配图1张（A0图纸）； 零件工作图2张（从动轴、齿轮等）； 设计说明书1份。 指导教师: 杨现卿 2013年1月10日 系统总体方案设计 确定传动方案 根据工作要求和工作环境，选择展开式二级圆柱斜齿轮减速器传动方案。此方案工作可靠、传递效率高、使用维护方便、环境适用性好，但齿轮相对轴承的位置不对称，因此轴应具有较大刚度。此外，总体宽度较大。 为了保护电动机，其输出端选用带式传动，这样一旦减速