第PAGE\*MERGEFORMAT35页共NUMPAGES\*MERGEFORMAT35页机械设计课程设计姓名：班级：指导教师：成绩：目录1.设计目的·············································（3）2.设计方案·············································（3）3.传动装置的总体设计····································（4）3.1电机选择·········································（4）3.2传动装置的总传动比及分配·························（5）3.3传动装置各轴的运动机动力参数······················（6）传动件的设计··········································（7）4.1V带的设计········································（7）4.2齿轮的设计·······································（9）5.轴及轴上零件的设计···································（10）5.1高速轴及轴上零件的设计、校核·····················（10）5.2中速轴及轴上零件的设计、校核·····················（17）5.3低速轴及轴上零件的设计、校核·····················（24）箱体结构的设计·······································（29）润滑设计·············································（30）密封类型的设计·······································（31）其他附件的设计·······································（31）参考文献············································（32）实验心得············································（33）全套设计请加197216396或401339828一、设计目的：带式运输机传动系统中的二级圆柱齿轮减速器1）工作条件要求减速器沿输送带运动方向具有最小尺寸，单向运转，有轻微振动，两班制工作，使用期限10年。2）原始数据已知条件E1传送带从动轴所需扭矩T（N*m）600输送带速度v（m/s）0.95鼓轮直径D(mm)3403）设计工作量（1）设计说明书（2）减速器装配图（3）轴零件图设计方案：三、传动装置的总体设计3.1电动机的选择设计内容计算及说明结果1、选择电动机的类型按工作要求和工作条件选用Y系列三相鼠笼型异步电动机，其机构为全封闭自扇冷式结构，电压为380V2、选择电动机的容量工作机的有效功率为：从电机到工作机输送带间的总效率为：式中，分别为联轴器，轴承，齿轮传动，卷筒和带的传动效率，有机械课程设计表9.1可知=0.99，=0.98，=0.96，=0.96，=0.96=0.776所以电动机所需的工作功率为：=0.7763、确定电动机的转速按表9.1推荐的传动比合理范围，二级圆柱齿轮减速器传动比=8~40,而工作机卷轴筒的转速为：所以电动机的可选范围为：综合考虑电动机和传动装置的尺寸、质量和价格等因素，为使传动装置结构紧凑，决定使用同步转速为1500r/min的电动机根据电动机的类型、容量和转速，由电机产品目录或有关手册选定电动机的型号为Y132S-4，其主要性能如下表所示:电动机型号额定功率/kw满载转速/(r/min)Y132S-45.514402.22.23.2计算传动装置的总传动比并分配传动比设计内容计算及说明结果1、总传动比2、分配传动比Ⅲ考虑润滑的条件，为使两级大齿轮相近，取=2,故：=23.3计算传动装置各轴的运动和动力参数设计内容计算及说明结果1、各轴的转数Ⅰ轴Ⅱ轴Ⅲ轴r/min卷筒轴2、各轴的输出功率Ⅰ轴kwⅡ轴kwⅢ轴kw卷筒轴kwkwkwkwkw3、各轴的输出转矩故Ⅰ轴Ⅱ轴Ⅲ轴卷筒轴四、传动件