本书参照教育部最新颁布的《中等职业学校机械基础教学大纲》及最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 绕教育部最新颁布的教学大纲，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。
王宁2007年参加工作，城阳区职业中等专业学校汽车运用与维修专业教师、汽修组组长。先后被授予全国技术能手、全国青年岗位能手、三次全国优秀指导教师、全国汽车类教师信息化教学比赛一等奖、第二批齐鲁名师、山东省惠才卡、山东省优质课一等奖、青岛市教学能手、第二批青岛市职教名师、青岛市高层次人才、青岛市工人先锋等荣誉称号。
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
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