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重点难点 |
本篇重点内容为常用机械传动的工作原理、结构、特点、运动分析及设计的基本方法。
通过学习,使学生达到以下基本要求:
(1)熟悉常用机械传动的工作原理、特点、类型及应用;
(2)具有常用机械传动有关的标准、手册等技术资料的应用能力;
(3)初步具有常用机械传动设计的基本方法和技能。
齿轮传动
1.齿轮传动的组成、类型、特点、应用
2.渐开线齿形及渐开线齿轮
3.重点是渐开线标准直齿圆柱齿轮的基本参数、几何尺寸计算、啮合传动特点及啮合条件
4.切齿原理、根切现象、变位齿轮的概念
5.失效形式和设计准则
6.渐开线直齿圆柱齿轮传动的设计思路和方法,包括材料选择、精度等级选择、轮齿受力分析、承载能力计算、参数选择、结构设计
7.了解其他三种常用齿轮传动,重点是其特点和应用
齿轮系
齿轮系的类型、应用以及传动比的计算方法
带传动
1.带传动的组成、类型、工作原理、特点和应用
2.普通V带的结构、标准、带轮材料选择与结构设计
3.普通V带传动的失效形式与设计准则,设计的思路和方法
4.V带传动在使用和维护方面应注意的问题
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