机械设计课程设计-一级圆锥齿轮减速器的设计.doc

目录 第一章 一级圆锥齿轮减速器的设计任务·····································3 设计题目··················································3 设计任务··················································3 具体作业··················································3 第二章 电动机的选择··············································4 2-1 选择电动机类型和结构形式·····································4 2-2 选择电动机的容量·············································4 2-3 确定电动机的转速，总传动比与各级传动比······················5 2-4 计算传动装置的运动和运动参数·······························5 第三章 圆锥齿轮传动的设计计算···································7 3-1圆锥齿轮传动的设计计算······································7 第四章 轴的设计计算··············································10 4-1 轴一的设计················································10 4-2 轴二的设计·················································14 第五章 滚动轴承的校核·············································19 5-1 滚动轴承的校核·············································19 第六章 键的校核··················································20 6-1 轴一键的校核··············································20 6-2 轴二键的校核··············································20 第七章 润滑方式及密封方式的选择··································21 7-1 润滑方式·················································21 7-2 密封方式及密封形式的选择···································21 第八章 减速器箱体设计·············································23 8-1 箱体设计···················································23 心得体会··························································24 参考文献··························································25 第一章 一级圆锥齿轮减速器的设计 1-1.设计题目 用于带式运输机的一级圆锥齿轮减速器。 传动装置简图如右图所示。 （1）带式运输机数据 见数据表格。 （2）工作条件 两班制工作，空载启动，单向连续运转，载荷平稳。运输带速度允许速度误差为±5%。 使用期限 工作期限为十年，每年工作300天；检修期间隔为三年。 生产批量 小批量生产。 2.设计任务 1)选择电动机型号； 2)确定链传动的主要参数及尺寸； 3)设计减速器； 4)选择联轴器。 3.具体作业 1)减速器装配图一张； 2)零件工作图二张（大齿轮，输出轴）； 3)设计说明书一份。 运输带工作拉力F/N 1500 1800 2000 2200 2400 2600 2800 2800 2700 2500 运输带工作速度v/(m/s) 1.5 1.5 1.6 1.6 1.7 1.7 1.8 1.8 1.5 1.4 运输带滚筒直径D/mm 250 260 270 280 300 320 320 300 300 300 第二章 电动机的选择 2-1选择电动机类型和结构型式 由电动机工作电源，工作条件荷载和特点选择三相