机械设计课程设计--两级圆柱齿轮链传动减速器.docx

机械设计课程设计题目：二级减速器设计带式输送机传动学院：机械与电子控制工程学院专业班级：测控1001学生姓名：吴炳璋学生学号：10222019指导教师：张朝辉2013年1月15日2目录1设计题目（传动方案对比确定）······································32传动系统的总体设计··············································52.1电动机的选择··············································52.2传动比分配和传动参数、运动参数的计算·······················53齿轮传动的设计计算··············································73.1高速级齿轮设计············································73.2低速级齿轮设计···········································114链传动的设计计算···············································165轴、键及联轴器的设计和校核······································185.1中间轴的结构设计···········································185.2高速轴的结构设计···········································215.3低速轴的结构设计···········································256减速器及其各部位附属零件的设计·································296.1箱体·······················································296.2各部位附属零件设计·········································316.3润滑方式的确定·············································327设计小结·······················································333计算及说明主要结果1设计题目设计一带式输送机传动用的二级圆柱齿轮展开式减速器。传动方案对比如下：（1）高速级锥齿轮仅由一端轴固定，运行时不稳定，易于产生噪音，严重磨损等，故不推荐。（2）带传动的传动比低，高速运行时单轴不稳定，且易打滑，故不推荐。（3）4计算及说明主要结果1输送带鼓轮2链传动3减速器4联轴器5电动机两组直齿轮构成减速装置，且用链传动作为输入端，结构简单且稳定，故采用此种减速装置原始数据：输送带牵引力2.7KN输送带速度1.1m/s输送带鼓轮直径370mm注：（1）带式输送机用于运送谷物、型砂、煤等；（2）输送机运转方向不变，工作载荷稳定；（3）输送带鼓轮的传动效率为0.97；（4）工作寿命15年，每年300个工作日，每日工作16小时。完成的设计内容：（1）设计说明书1份（2）减速器装配图1张（3）减速器零件图2张（4）指导教师安排的其他内容2传动系统的总体设计2.1电动机的选择P=2.97kw=0.833Pd=3.57kw