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前橋總成簡介

前橋總成(cheng)(cheng)安裝(zhuang)在車(che)身的(de)后半部分 用(yong)于撐起車(che)身 包括 前橋殼、半軸、制(zhi)動(dong)器總成(cheng)(cheng)、差減速器總成(cheng)(cheng) 帶動(dong)輪胎的(de)運轉(zhuan)。

我們經常提及汽車的前橋和后橋，那你清楚前橋到底位于車的哪個部位嗎？
汽車的前橋分布在汽車的前段，它將車的前部與兩個輪胎連接起來，同時也承擔著傳遞車架與前輪之間各向作用力，以及其所產生的彎矩和轉矩的作用。汽車前橋的主要組成部分分為前軸、輪轂組合、主銷、節臂、轉向節、制動器總成、橫拉桿總成等等。
前橋對于汽車結構來說發揮著重要作用，具體如下：

1、汽車前橋不僅對車輛前端起到承載的作用，而且具有較強的相對抗對沖擊力。

2、對于車輛的轉向、制動、行走，汽車前橋也發揮了一定的作用。

前橋是車輛的重要部件，平日車主在行車時要注意不要超載行駛，以免造成損壞，同時要定期檢查和維修前橋，出現故障及時修理或更換。

前橋總成的作用

汽(qi)車(che)前(qian)(qian)橋(qiao)(qiao)主要是通(tong)過離合器(qi)變速(su)(su)(su)箱(xiang)將發動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機動(dong)(dong)(dong)(dong)(dong)(dong)(dong)力減(jian)速(su)(su)(su)并增(zeng)加扭矩，再通(tong)過前(qian)(qian)橋(qiao)(qiao)總(zong)成傳遞給動(dong)(dong)(dong)(dong)(dong)(dong)(dong)力的(de)(de)最終輸出輪(lun)。同時，前(qian)(qian)軸(zhou)(zhou)(zhou)還起到轉向的(de)(de)作(zuo)(zuo)用(yong)。此外(wai)(wai)，前(qian)(qian)橋(qiao)(qiao)還起到承(cheng)載(zai)整車(che)重量(liang)的(de)(de)作(zuo)(zuo)用(yong)，即車(che)身(shen)和前(qian)(qian)懸架通(tong)過連桿(gan)機構與前(qian)(qian)橋(qiao)(qiao)總(zong)成連接，起到承(cheng)載(zai)的(de)(de)作(zuo)(zuo)用(yong)。如果(guo)前(qian)(qian)橋(qiao)(qiao)不(bu)是驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)(qiao)，后(hou)輪(lun)軸(zhou)(zhou)(zhou)就是驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)(qiao)。此時除(chu)了(le)承(cheng)載(zai)功(gong)能外(wai)(wai)，還起到驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)、減(jian)速(su)(su)(su)、差(cha)速(su)(su)(su)的(de)(de)作(zuo)(zuo)用(yong)。在四輪(lun)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)情(qing)況下，通(tong)常(chang)(chang)在后(hou)輪(lun)軸(zhou)(zhou)(zhou)前(qian)(qian)面有(you)(you)一個(ge)分動(dong)(dong)(dong)(dong)(dong)(dong)(dong)箱(xiang)。后(hou)輪(lun)軸(zhou)(zhou)(zhou)分為整體橋(qiao)(qiao)和半(ban)軸(zhou)(zhou)(zhou)。橋(qiao)(qiao)梁采用(yong)非獨立懸掛，如鋼板彈(dan)簧懸掛；半(ban)軸(zhou)(zhou)(zhou)采用(yong)獨立懸架，如麥弗遜懸架。前(qian)(qian)軸(zhou)(zhou)(zhou)和后(hou)輪(lun)軸(zhou)(zhou)(zhou)之間有(you)(you)著本(ben)質的(de)(de)區別，不(bu)僅僅是在外(wai)(wai)觀上。后(hou)輪(lun)軸(zhou)(zhou)(zhou)指的(de)(de)是汽(qi)車(che)后(hou)部(bu)的(de)(de)車(che)軸(zhou)(zhou)(zhou)。如果(guo)車(che)輛由前(qian)(qian)軸(zhou)(zhou)(zhou)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，那么后(hou)輪(lun)軸(zhou)(zhou)(zhou)只(zhi)是一個(ge)從動(dong)(dong)(dong)(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)，只(zhi)起軸(zhou)(zhou)(zhou)承(cheng)的(de)(de)作(zuo)(zuo)用(yong)。相反，如果(guo)前(qian)(qian)橋(qiao)(qiao)不(bu)是驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)(qiao)，那么后(hou)輪(lun)軸(zhou)(zhou)(zhou)就是驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)(qiao)。前(qian)(qian)軸(zhou)(zhou)(zhou)除(chu)了(le)承(cheng)載(zai)功(gong)能外(wai)(wai)，還起到驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)、減(jian)速(su)(su)(su)和差(cha)速(su)(su)(su)器(qi)的(de)(de)作(zuo)(zuo)用(yong)。在四輪(lun)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)情(qing)況下，通(tong)常(chang)(chang)在后(hou)輪(lun)軸(zhou)(zhou)(zhou)前(qian)(qian)面有(you)(you)一個(ge)分動(dong)(dong)(dong)(dong)(dong)(dong)(dong)箱(xiang)。

納瓦拉簡介

2017年6月16日(ri)，鄭州日(ri)產全(quan)新皮卡納(na)瓦(wa)拉正式上市(shi)。納(na)瓦(wa)拉已經在2017年上海車(che)展(zhan)首發(fa)(fa)，新車(che)搭載(zai)一臺(tai)2.5L自(zi)然吸氣發(fa)(fa)動(dong)(dong)機，傳動(dong)(dong)匹配5速手(shou)動(dong)(dong)、6速手(shou)動(dong)(dong)及7速手(shou)自(zi)一體變速箱(xiang)。