模块一 汽车常用机构···································································· 1 项目一 平面连杆机构································································ 3 任务1 机械组成认识··························································· 3 任务2 认识运动副·····························································10 任务3 平面连杆机构类型的判断及应用···································15 任务4 平面连杆机构的基本特性············································27 任务5 平面连杆机构的演化··················································34 项目二 凸轮机构·····································································43 任务 凸轮机构的组成及应用················································43 模块二 汽车常用机械传动·····························································55 项目一 机械传动在汽车中的应用·················································56 任务1 带传动···································································57 任务2 链传动···································································70 任务3 齿轮传动································································81 任务4 蜗杆传动······························································ 106 项目二 齿轮系与减速器·························································· 116 任务1 齿轮系································································· 116 任务2 减速器································································· 127 模块三 汽车常用零部件······························································ 133 项目一 支承零部件································································ 134 任务1 常见轴认识··························································· 134 任务2 常见轴承认识························································ 145 项目二 联接零部件································································ 164 任务1 键联接与销联接的认识············································· 164 任务2 螺纹联接······························································ 176 任务3 联轴器与离合器····················································· 192 模块四 汽车常用材料································································· 199 项目一 汽车常用金属材料······················································· 200 任务1 金属材料的力学性能················································ 201 任务2 金属材料在汽车上的应用·········································· 206 项目二 汽车常用非金属材料····················································· 215 任务 汽车常用非金属材料的选用········································· 216 模块五 汽车常用润滑与密封························································· 221 项目 汽车的润滑与密封·························································· 222 任务1 机械润滑······························································ 222 任务2 汽车常用机械密封·················································· 232 任务3 环境保护与安全防护················································ 235 模块六 汽车常用气压与液压传动··················································· 238 项目一 气压传动与液压传动····················································· 239 任务1 气压传动······························································ 240 任务2 液压传动的基本概念················································ 245 项目二 液压传动的基本元件····················································· 254 任务1 液压传动的动力元件················································ 254 任务2 液压传动的执行元件················································ 261 任务3 液压传动的控制元件与辅助元件································· 267 项目三 液压传动系统的基本回路分析及计算································ 283 任务 液压传动系统的基本回路··········································· 284 模块七 钳工基本知识································································· 293 项目一 基本量具··································································· 294 任务1 游标卡尺······························································ 295 任务2 外径千分尺··························································· 301 任务3 百分表························································