汽车机械基础

本书参照教育部近期新颁布的《中等职业学校机械基础教学大纲》及近期新国家职业技能标准和行业职 业技能鉴定规范中有关要求进行编写。同时结合了山东省职教高考汽修类专业的机械基础综合理论考试 大纲要求， 涵盖职教高考机械基础及钳工的相关知识点， 兼顾教学与备考的需要。 本书内容包括汽车常用机构、汽车常用机械传动、汽车常用零部件、汽车常用材料、汽车常用润滑 与密封、汽车常用气压与液压传动、钳工基本知识。采用的模块化、项目化、任务化教学模式，紧紧围 绕教育部近期新颁布的教学大纲，参阅了大量相关资料的基础上编写而成的。 本书可作为职业院校汽车相关专业的教材，也可作为中等职业学校汽车类专业对口升学考试的辅导 用书，还可供汽车维修技术人员及汽车爱好者学习与使用。

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································································.309 项目二 钳工基本加工····························································.315 任务1 钳工划线与定位····················································.317 任务2 钳工锯削加工·······················································.321 任务3 钳工锉削加工·······················································.329 任务4 孔与螺纹加工·······················································.337