后橋是指連接兩個后輪的一個橋,向后驅動車的后橋稱之為驅動橋,不是后驅車的后橋稱之為支撐橋
后懸架總成 往往出現在乘用車中,一般由彈簧、減震器、連接桿、等組成的起到傳遞和支撐輪胎和車身的之間的激勵的部件。
一般分為三種 獨立懸架(連桿式的)、半獨立懸架(扭力梁式)、非獨立懸架(橋或者軸式的)。后橋是指連接兩個后輪的一個橋,向后驅動車的后橋稱之為驅動橋,不是后驅車的后橋稱之為支撐橋,
后懸架總成是指用來支撐車輛后部車身的,一般為獨立懸架
1、將(jiang)橋(qiao)(qiao)殼下(xia)(xia)部的(de)(de)放(fang)油(you)螺塞擰下(xia)(xia),放(fang)出橋(qiao)(qiao)殼的(de)(de)潤(run)滑油(you);拆下(xia)(xia)主(zhu)動錐齒輪凸緣與(yu)傳(chuan)動軸的(de)(de)連接螺栓(shuan);
2、半(ban)(ban)(ban)軸(zhou)(zhou)的拆(chai)(chai)卸。拆(chai)(chai)卸前(qian),應(ying)將(jiang)前(qian)輪用(yong)掩(yan)木掩(yan)住(zhu),松開駐車制(zhi)動器。拆(chai)(chai)卸時(shi),松開并(bing)擰下全(quan)部(bu)半(ban)(ban)(ban)軸(zhou)(zhou)緊固螺(luo)母及墊圈;用(yong)銅錘輕輕打擊半(ban)(ban)(ban)軸(zhou)(zhou)尾部(bu)中央2至(zhi)3下,使(shi)半(ban)(ban)(ban)軸(zhou)(zhou)法(fa)蘭面與輪轂連接面分離(li)后,用(yong)手拉半(ban)(ban)(ban)軸(zhou)(zhou)法(fa)蘭,即可將(jiang)半(ban)(ban)(ban)軸(zhou)(zhou)抽出。注意在半(ban)(ban)(ban)軸(zhou)(zhou)花鍵部(bu)分即將(jiang)通過油封(feng)時(shi),要(yao)用(yong)手托(tuo)住(zhu)半(ban)(ban)(ban)軸(zhou)(zhou)桿(gan)部(bu),并(bing)緩緩轉動半(ban)(ban)(ban)軸(zhou)(zhou),使(shi)半(ban)(ban)(ban)軸(zhou)(zhou)并(bing)行移出,不致將(jiang)半(ban)(ban)(ban)軸(zhou)(zhou)油封(feng)損壞(huai),也(ye)預防半(ban)(ban)(ban)軸(zhou)(zhou)掉地扎傷人;
3、主(zhu)減(jian)(jian)速器(qi)總成(cheng)的(de)(de)拆(chai)卸:卸下(xia)后(hou)制(zhi)(zhi)動軟(ruan)管與三通(tong)接頭;用小車,將減(jian)(jian)速器(qi)殼支(zhi)承好,拆(chai)下(xia)減(jian)(jian)速器(qi)殼與后(hou)橋連接的(de)(de)12個螺栓(shuan),將減(jian)(jian)速器(qi)總成(cheng)從(cong)橋殼上取下(xia);斷(duan)開制(zhi)(zhi)動氣室軟(ruan)管、管路之間的(de)(de)連接,拆(chai)下(xia)制(zhi)(zhi)動氣室,拆(chai)下(xia)調整臂總成(cheng);
4、拆(chai)除輪(lun)轂(gu)調(diao)整(zheng)螺母鎖片緊固螺釘(ding),取出鎖片用(yong),專用(yong)套筒拆(chai)掉(diao)輪(lun)轂(gu)調(diao)整(zheng)螺母;稍(shao)稍(shao)轉(zhuan)動(dong)(dong)(dong)輪(lun)轂(gu)及(ji)制動(dong)(dong)(dong)鼓總(zong)成(cheng),用(yong)拉馬向外拉輪(lun)轂(gu),同(tong)時在制動(dong)(dong)(dong)鼓上輕輕敲擊,以震(zhen)松外軸(zhou)承(cheng)(cheng)(cheng)內(nei)圈(quan)(quan),待(dai)外軸(zhou)承(cheng)(cheng)(cheng)內(nei)圈(quan)(quan)松動(dong)(dong)(dong)后,取下輪(lun)轂(gu)及(ji)制動(dong)(dong)(dong)鼓總(zong)成(cheng),但(dan)此時應(ying)注意(yi)該總(zong)成(cheng)重量(liang)較重,不(bu)要(yao)摔壞或砸傷(shang)人,同(tong)時要(yao)注意(yi)保護外軸(zhou)承(cheng)(cheng)(cheng)內(nei)圈(quan)(quan)不(bu)要(yao)摔壞;
5、用拉馬(ma)拆(chai)出內軸承內圈(quan)總(zong)成(cheng)和(he)油封座圈(quan)總(zong)成(cheng);用回位彈(dan)簧拆(chai)卸工具(ju),拆(chai)下制動(dong)器回位彈(dan)簧,取下凸輪(lun)軸;用板手拆(chai)下制動(dong)器底板緊固螺栓,取下制動(dong)器底板帶(dai)蹄(ti)片及防塵罩總(zong)成(cheng);拆(chai)下制動(dong)氣室支架,拆(chai)下橋殼總(zong)成(cheng);
6、最后安裝(zhuang)拆卸的(de)反(fan)序安裝(zhuang)即可。
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