链式运输机传动装置机械设计

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1、目录一任务书···········································3二电动机的选择·····································41选择电动机类型和结构······························42电动机的容量选择··································43确定电动机功率····································44电动机转速···································

2、·····45电动机型号的选定··································5三传动比分配和传动参数、运动参数的计算···········51总传动比·······································52分配各级传动比····································53传动参数和运动参数的计算··························6四齿轮传动的设计计算·······························61选择齿轮类型、精度等级、材

3、料······················62按齿面接触强度设计································7五链传动的设计计算································10六轴、键及联轴器的设计和校核·····················121高速轴的结构设计·································122低速轴的结构设计·································163键与轴承的设计························

4、···········20七箱体材料及主要结构尺寸计算······················21八各部位附属零件设计·······························22九总结··············································24十参考文献··········································24酒泉职业技术学院《机械设计基础课程设计》任务书姓名_________专业、班级____________题号8设计题目：链式运输机传动装置铸造车间用

5、链式运输机，运输机由电动机驱动圆柱齿轮减速器、链传动至运输链板以将落砂后的热铸件运送至清理工序。vF54213传动简图：1.电动机2.联轴器3.减速器4.链传动5.链式运输机原始数据及工作条件：工作平稳，不逆转，运输机链速允许误差±5%，两班制工作。已知参数单位设计方案12345678运输链曳引力FKN3.12.82.52.32.32.0运输链速度vm/s0.911.11.21.51.6运输链链轮齿数z777777运输链节距pmm100100100100100100使用年限y设计方案5圆柱直齿轮减速器，工作10年，每班8小时计算

6、。二电动机的选择1、选择电动机类型和结构Y系列三相异步电动机有构造简单、制造使用方便、效率高、启动转速大、价格便宜的特点，因此选择Y系列三相异步电动机。2、确定电动机功率运输链的输出功率：由《机械设计课程设计》第二篇第十一章查得，联轴器效率：滚动轴承效率：齿轮传动效率：开式滚子链传动效率：传动系统总效率：选取电动机额定功率P，使P=（1—1.3）P，由《机械设计课程设计》第二篇第二十章取P=4KW3、电动机转速运输链工作转速为：取V带传动的传动比，一级圆柱齿轮减速器传动比，则总传动比合理范围为，故电动机转速的可选范围为4、电动机

7、型号的选定查《机械设计课程设计》349页，有三种Y系列三相异步电动机可用，三者参数比较如下：方案电动机型号额定功率kW电动机转速r/min电动机重量kg效率%同步转速满载转速1Y112M-24300028904585.52Y112M-44150014404384.53Y132M1-6410009607584综合考虑总传动比及尺寸大小、质量、转速、选取Y112M-4型。其主要性能数据列于下表:电动机额定功率/kW4电动机满载转速/(r/min)1440电动机轴伸直径D/mm28电动机轴伸长度E/mm60电动机中心高H/mm265堵

8、转转矩/额定转矩2.2三传动比分配和传动参数、运动参数的计算1、总传动比2、分配各级传动比初取=,则齿轮减速器的传动比为3、传动参数和运动参数的计算（1）各轴转速（2）各轴功率（3）各轴转矩运动和动力参数计算结果整理于下表：轴名功率（P/kW）转速（r/min)