汽车转向行驶与制动系统检查与修理PPT课件

.,.,2,尹大明：2003年毕业于中国石油大学，高级维修技师，德国培训培训师职称。从事汽车行业9年，曾在大众、宝马4S店担任首席技师、技术指导等职务。电话Q:924693096邮箱：daming.yin,.,3,.,4,.,5,.,6,.,7,.,8,.,9,.,10,.,11,.,12,.,13,转向器,转向传动机构,转向操纵机构,液压动力转向系统,.,14,方向盘,万向节,转向柱,传动轴,.,15,.,16,.,17,.,18,撞击前,撞击后,.,19,撞击前,撞击后,.,20,.,21,转向柱,.,.,23,.,24,.,25,.,26,.,.,28,.,29,.,30,.,31,.,32,.,33,.,34,.,35,.,36,.,37,.,38,.,39,.,40,.,41,.,42,.,43,.,44,.,.,46,.,47,.,48,.,49,.,50,.,51,.,52,.,53,.,54,.,55,.,56,.,57,.,58,.,59,.,.,61,.,62,.,63,.,64,.,.,66,.,67,.,68,油管,壳体,主动齿轮,密封圈,转向齿条,补偿机构,.,69,转阀的结构及工作原理,结构阀体绕其圆心转动来控制油液流量的转向控制阀，称为转阀式转向控制阀转阀具有四个互相连通的进油道，出油通道分别与动力缸的左、右腔连通。当阀体顺时针转过一个很小的角度时，从液压泵来的压力油经通道流入四个通道，继而进入动力缸的一个腔内另外四个通道的进油被隔断，压力油不能进入，因而动力缸另一腔的低压油，在活塞推动下经回油遭流回储油罐。,.,70,工作原理汽车直线行驶时，阀芯与阀套的位置关系如图中所示。自油泵来的液压油经阀芯与阀套间的间隙，流向动力缸两端，动力缸两端油压相等。驾驶员转动方向盘时，阀芯与阀套相对位置发生改变，使得大部分或全部来自泵的液压油流入动力缸某一端，而另一端与回油管路接通，动力缸促进汽车左传或右转。,.,.,72,.,73,.,74,.,75,.,76,.,77,.,78,.,79,.,80,.,81,.,82,.,83,.,84,.,85,前轮悬架,后轮悬架,.,86,.,87,.,88,.,89,拧松减震上座螺栓时用于固定减震器拉杆,桑塔纳2000车型的前轮轴承套与前减震器需同时拆卸，在拆卸减震器时需将半轴抽出。,可将下摆臂球头和横拉杆球头压出,.,90,.,91,.,92,.,93,.,.,95,.,96,.,97,.,98,.,99,.,100,.,101,.,102,.,103,.,104,.,.,106,.,107,.,108,.,109,用于拆卸副车架时固定发动机,用于拆卸副车架中的橡胶支撑,.,110,.,111,.,112,.,113,.,114,.,115,.,116,.,117,.,118,.,119,.,120,.,121,.,122,.,123,.,124,.,125,胎面,缓冲层,帘布层,胎圈,轮辋,气门嘴,胎肩,胎侧,.,126,.,127,.,128,.,129,.,130,.,.,132,.,133,.,134,.,135,.,136,.,.,.,139,.,140,.,141,.,142,.,143,.,144,.,145,.,146,.,147,.,148,.,149,.,150,.,151,正,负,.,152,.,153,.,154,.,155,.,156,.,157,.,158,.,159,.,160,.,161,.,162,.,163,.,164,.,165,.,166,.,167,.,168,.,169,.,170,.,171,.,172,制动器,制动管路,带真空助力器的制动总泵,.,173,.,174,.,175,.,制动盘,制动片,制动钳,支架,放气螺栓,.,177,.,178,.,179,制动钳,制动片,制动盘,.,180,.,181,.,182,.,.,184,.,185,.,186,.,组成,.,188,.,189,.,190,制动管路中的压力使分泵推动制动蹄片,制动鼓随车轮旋转,制动蹄片固定,.,191,.,.,193,.,194,.,195,.,196,.,197,.,198,.,199,.,200,.,201,.,202,.,203,活塞,放气螺栓,防护帽,密封圈,壳体,.,204,制动主缸,制动踏板,油管,制动钳壳体,制动片,活塞,制动盘,.,205,.,206,.,207,.,208,放气螺栓,弹簧,防尘罩,皮圈,壳体,活塞,.,209,主缸活塞,轮缸活塞,.,210,.,211,.,.,213,.,214,.,215,.,216,.,.,218,.,219,.,220,.