项目六 驻车制动器检查与调整

项目六 驻车制动器检查与调整 教 案 首 页 课题序号 3 授课时间 2月24日(周一) 授课课时 2 授课班级 1105班 授课章节 项目六 驻车制动器检查与调整 名称 使用教具 多媒体 了解汽车驻车制动器基本结构及工作原理，掌握汽车驻车制动器的检查教学目的 与调整。 教学重点 驻车制动器的检查与调整。 教学难点 驻车制动器的类型结构及其工作原理。 教学方法 讲述法 列举法 提问法 讨论法 更新、补 充、删节 / 内容 课外作业 习题集、实习报告 教学后记 administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 授课主要内容或板书 【任务一:驻车制动器的认知】 1(驻车制动器的功用 2.驻车制动器的类型及工作原理 (1)中央驻车制动装置 (2)车轮制动式驻车制动装置 【任务二:检查与调整驻车制动器】 1.检查驻车制动杠杆行程(以丰田卡罗拉为例) 2.调整驻车制动杠杆行程 administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 教学 教学方法 主 要 教 学 内 容 过程 教学手段 复习 1、鼓式车轮制动器有哪些类型, 复习提问 回顾 2、如何对鼓式车轮制动器制动蹄片进行检查, 5分钟 导入 【任务一:驻车制动器的认知】 新课 1(驻车制动器的功用 65分钟 驻车制动器的功用是汽车停驶后防止滑溜;便于上坡起步;行车 制动失效后临时使用或配合行车制动进行紧急制动(其位置如图6-1 所示)。 2.驻车制动器的类型及工作原理 驻车制动装置的结构基本等同于行车制动器，也是由制动器(如 图6-2所示)和制动传动机构(如图6-3所示)两部分组成。制动器 有中央制动器(如图6-4所示)和复合制动器(如图6-5所示)两种 类型。传动机构有机械式(如图6-6所示)、液力式(如图6-7所示) 和气压式(如图6-8所示)。 (1)中央驻车制动装置 中央驻车制动装置按照制动器的类型又可分为增力式中央驻车制 动装置和凸轮张开式中央制动装置 ?增力式中央驻车制动装置 解放CA1092驻车制动器为自增力鼓式制动机构(如图6-9所示)。 制动鼓工作直径254mm，蹄片宽为75mm，装在变速器后，传动轴之前。 它主要由机械式拉杆操纵机构及驻车制动器等机件组成。 ?凸轮张开式中央制动装置(如图6-10所示) 东风EQ1092型汽车驻车制动装置采用的就是凸轮张开式中央制 动装置，该驻车制动器与CA1092型汽车驻车制动器均为凸轮张开鼓式 制动器，基本结构、拆装、维修方法基本相同。区别在于两制动蹄下 端支撑方式不一。 (2)车轮制动式驻车制动装置 车轮制动式驻车制动装置是在后桥车轮制动器中，加装有必要的 administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 p理论课教案用纸 unishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 机构，使之兼充驻车制动器。目前多用于轿车上，它的驻车制动器与 后车轮制动器共用，操纵机构独立，并由拉索驱动。 【任务二:检查与调整驻车制动器】 1.检查驻车制动杠杆行程(以丰田卡罗拉为例) (1)用手拉住驻车制动杠杆(如图6-12所示)。 (2)松开驻车制动器锁(如图6-13所示)，并将驻车制动杠杆放 回到关闭位置(如图6-14所示)。 注意:松开驻车制动器锁时要先往上拉驻车制动，然后按下驻车制动 器锁，否则很难按下。 (3)缓慢将驻车制动杠杆向上拉到底，并计算咔嗒声的次数(如图 6-15所示)。 (4)驻车制动杠杆行程:200N时为6-9个槽口。 2.调整驻车制动杠杆行程 注意事项:在执行驻车制动器调整之前，确保制动管路已放气且 不再含有空气。(放空气内容在制动系一章中已有介绍) 准备工作: (1)工具、台架或整车。 (2)2人一组，分别负责左右两侧。 (3)完全松开驻车制动杠杆。 拆装步骤 (1)拆下仪表板左右装饰板(卡子)(拆卸时注意卡子方向，不可 使用蛮力硬拉，或者用锤子、起子等工具大力拆卸，防止卡子折 断)(如图6-16、6-17所示)。 (2)拆下仪表盒总成(2颗梅花螺 丝钉、卡子)(如图6-18所示)。 (3)拆下换挡杆把手分总成(逆时针旋转)(如图6-19所示)。 (4)拆下中央仪表组装饰板总成(卡子)(如图6-20所示)。 (5)拆下前1、2号地板控制台嵌入件、地板控制台上面板分总成 (卡子)(如图6-21所示)。 (6)取下地板控制台毡垫拆下后拆下地板控制台总成(4颗10#螺 栓、2颗梅花螺丝钉、卡子)(如图6-22、6-23所示) (7)松开 锁紧螺母(10#开口、梅花扳手配合，开口扳手固定调整螺母，梅administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 花扳手松开锁紧螺母)(如图6-24所示)。 (8)旋转调整螺母使驻车制动杠杆行程修正至规定范围内(驻车制 动杠杆行程:200N(20Kgf,45Ibf)时为6-9个槽口)(需多次试验)(如 图6-25所示)。 (9)旋紧锁紧螺母(方法同松开锁紧螺母)扭矩: 6.0N*M(61kfg*cm,53in.*Ibf) (如图6-26所示)。 (10)发动机停机时，完全踩下制动踏板3-5次。 (11)操作驻车制动杠杆3-4次，并检查驻车制动杠杆行程。 (12)检查驻车制动是否卡滞(如图6-27所示)。 (13)将驻车制动杠杆行程调整之规定范围后，按相反顺序将零件 逐一安装。 3.其它相关部件介绍 (1)驻车制动器平衡器(如图6-28所示)。 (2)驻车制动开关总成(如图6-29所示)(作用:始终在拉起 手刹至第一个槽口时，制动灯点亮)。 (3)驻车制动拉索与制动器连接件(如图6-30所示)。 (4)松开驻车制动杆，检查并确认后盘式制动器制动缸操作杆和挡 块之间的间隙在规定范围内。(如图6-31所示)。(间隙:0.5mm或更 小) 课堂 本堂课主要学习了，汽车驻车制动系统基本结构及工作原理，并小结 重点讲解了驻车制动系统的检查调整。 5分钟 作业 1、驻车制动系系统的功用是什么, 布置 2、如何对驻车制动系统进行检查及调整, 5分钟 administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 p理论课教案用纸 unishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6