课程设计--二级圆锥-圆柱齿轮减速器

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1、29机械设计基础课程设计计算说明书设计题目：二级圆锥-圆柱齿轮减速器设计者：学号：同组者：学院：专业班级：指导教师：29二○一四年○六月二十一日目录一、设计任务书················································································2二、总体设计计算·············································································41.电机型号选择2.各级传动比分配3.

2、各轴的运动参数和动力参数计算（转速、功率、转矩）三、传动机构设计计算·····································································61.直齿圆柱传动2.圆锥齿轮传动四、轴系零件设计计算·····································································101.输入轴的设计计算2.中间轴的设计计算3.输出轴的设计计算29五、滚动轴承的选择与寿命校核计算··················

3、···························20六、键连接的强度校核计算··························································23七、润滑和密封方式的选择····························································24八、箱体的设计···············································································25九、附件

4、的结构设计和选择····························································25十、设计总结···················································································26参考文献···························································································2729一、设计任务书

5、1、二级圆锥-圆柱设计方案（1）已知条件：输送带牵引力F=3500N带速V=1.7m/s卷筒直径D=200mm（2）整体方案如下：图1-1二级圆锥-圆柱齿轮减速器整体外观参考图29图1-2二级圆锥-圆柱齿轮减速器内部结构参考图图1-3二级圆锥-圆柱设计运动方案简图29二、总体设计计算1、电机型号选择（1）电动机类型选择：Y系列三相异步电动机（2）电动机功率计算：输出功率：P输出=F×V/1000=5.95KW按《机械设计基础课程设计》P7表2-4取η联轴器=0.99轴承的效率的确定：圆锥齿轮处选用圆锥滚子轴承直齿圆柱处选用圆锥滚

6、子轴承按《机械设计基础课程设计》P7表2-4取η轴承=0.98圆锥齿轮效率的确定：按《机械设计基础课程设计》P7表2-4取η锥齿=0.96直齿圆柱齿轮效率的确定：按《机械设计基础课程设计》P7表2-4取η圆柱=0.97传动装置的总效率：η总=η3轴承×η2联轴器×η锥齿×η圆柱=0.993×0.992×0.95×0.97=0.85电机所需的工作功率：P工作=P输出/η总=7.02KW（2）确定电动机转速卷筒转速：n筒=60×1000V/πD=60×1000×1.7/（π×200）=162.33r/min按《机械设计基础课程设计》

7、P4表2-1推荐的传动比合理范围，取圆柱齿轮传动一级减速器传动比范围i’a=3~6。取圆锥传动比i’1=2~3，则总传动比理时范围为i’a=6~18。故电动机转速的可选范围为n’d=i’a×n2=（6~18）×162=972~2916r/min，符合这一范围的同步转速有1000和1500r/min。根据容量和转速，由有关手册查出有两种适用的电动机型号：因此有两种传动比方案：1000和1500r/min。综合考虑电动机传动平稳和传动装置尺寸、重量、价格和带传动、减速器的传动比，可见第2方案比较适合，所以选同步转速为1000r/mi

8、n 。（3）确定电动机型号按手册P167表12-1，选用Y160M-6型三相异步电动机。Ped=7.5KW，n1=970r/min，额定转矩2质量119kg。2、计算传动装置总传动比和分配各级传动比（1）传动装置总传动比：i总=n1/n筒=6（2）分配各级传动比