減(jian)(jian)震(zhen)(zhen)器(qi)(Absorber) ,減(jian)(jian)震(zhen)(zhen)器(qi)主(zhu)要用來(lai)(lai)抑制(zhi)彈(dan)(dan)(dan)簧(huang)(huang)吸震(zhen)(zhen)后反彈(dan)(dan)(dan)時(shi)的(de)(de)震(zhen)(zhen)蕩及來(lai)(lai)自(zi)路(lu)面的(de)(de)沖擊(ji)。在經過不平路(lu)面時(shi),雖(sui)然吸震(zhen)(zhen)彈(dan)(dan)(dan)簧(huang)(huang)可(ke)以過濾路(lu)面的(de)(de)震(zhen)(zhen)動(dong)(dong)(dong),但彈(dan)(dan)(dan)簧(huang)(huang)自(zi)身還會有往復運動(dong)(dong)(dong),而減(jian)(jian)震(zhen)(zhen)器(qi)就是用來(lai)(lai)抑制(zhi)這種(zhong)彈(dan)(dan)(dan)簧(huang)(huang)跳躍的(de)(de)。減(jian)(jian)震(zhen)(zhen)器(qi)太軟,車(che)身就會上下跳躍,減(jian)(jian)震(zhen)(zhen)器(qi)太硬就會帶(dai)來(lai)(lai)太大的(de)(de)阻力,妨礙(ai)彈(dan)(dan)(dan)簧(huang)(huang)正常工作。在關(guan)于懸掛系統的(de)(de)改裝過程(cheng)中,硬的(de)(de)減(jian)(jian)震(zhen)(zhen)器(qi)要與硬的(de)(de)彈(dan)(dan)(dan)簧(huang)(huang)相(xiang)搭配,而彈(dan)(dan)(dan)簧(huang)(huang)的(de)(de)硬度又與車(che)重(zhong)息(xi)息(xi)相(xiang)關(guan),因此較(jiao)重(zhong)的(de)(de)車(che)一(yi)般(ban)采用較(jiao)硬的(de)(de)減(jian)(jian)震(zhen)(zhen)器(qi)。與引震(zhen)(zhen)曲(qu)(qu)(qu)軸(zhou)(zhou)相(xiang)接的(de)(de)裝置,用來(lai)(lai)抗衡曲(qu)(qu)(qu)軸(zhou)(zhou)的(de)(de)扭轉震(zhen)(zhen)動(dong)(dong)(dong)(即曲(qu)(qu)(qu)軸(zhou)(zhou)受汽缸點火的(de)(de)沖擊(ji)力而扭動(dong)(dong)(dong)的(de)(de)現(xian)象)。
懸架(jia)系統中(zhong)(zhong)(zhong)由(you)(you)于彈(dan)性(xing)元(yuan)件受(shou)沖擊(ji)產生(sheng)震(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong),為(wei)改善汽車(che)(che)(che)行駛(shi)平順性(xing),懸架(jia)中(zhong)(zhong)(zhong)與彈(dan)性(xing)元(yuan)件并聯(lian)安(an)裝減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)器(qi),為(wei)衰減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong),汽車(che)(che)(che)懸架(jia)系統中(zhong)(zhong)(zhong)采用減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)器(qi)多是(shi)液(ye)力減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)器(qi),其工(gong)作原理是(shi)當車(che)(che)(che)架(jia)(或(huo)車(che)(che)(che)身)和(he)車(che)(che)(che)橋(qiao)間(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)而出現相(xiang)(xiang)對運動(dong)(dong)時(shi),減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)器(qi)內的活塞(sai)上下移動(dong)(dong),減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)器(qi)腔內的油(you)(you)(you)(you)液(ye)便反復地從一(yi)個(ge)腔經過(guo)不(bu)同的孔(kong)隙流(liu)入另一(yi)個(ge)腔內。此時(shi)孔(kong)壁與油(you)(you)(you)(you)液(ye)間(jian)的摩(mo)擦和(he)油(you)(you)(you)(you)液(ye)分子間(jian)的內摩(mo)擦對震(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)形成阻尼力,使汽車(che)(che)(che)震(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)能量轉(zhuan)化為(wei)油(you)(you)(you)(you)液(ye)熱能,再由(you)(you)減(jian)(jian)震(zhen)(zhen)(zhen)(zhen)(zhen)器(qi)吸收散發到大氣中(zhong)(zhong)(zhong)。在油(you)(you)(you)(you)液(ye)通(tong)道(dao)截面和(he)等因素不(bu)變時(shi),阻尼力隨車(che)(che)(che)架(jia)與車(che)(che)(che)橋(qiao)(或(huo)車(che)(che)(che)輪(lun))之間(jian)的相(xiang)(xiang)對運動(dong)(dong)速度增減(jian)(jian),并與油(you)(you)(you)(you)液(ye)粘(zhan)度有關[1] 。
減震器(qi)(qi)與彈(dan)性(xing)元(yuan)件(jian)承擔(dan)著緩(huan)沖(chong)擊(ji)和減震的任(ren)務,阻尼力(li)過大,將使(shi)(shi)懸架彈(dan)性(xing)變壞,甚(shen)至(zhi)使(shi)(shi)減震器(qi)(qi)連接件(jian)損壞。因而要(yao)調節彈(dan)性(xing)元(yuan)件(jian)和減震器(qi)(qi)這一矛盾。
(1) 在壓縮行程(車橋和(he)車架相互靠近),減震(zhen)器阻尼(ni)力較小,以便充分發揮(hui)彈(dan)性(xing)元件的(de)彈(dan)性(xing)作用,緩和(he)沖(chong)擊(ji)。這時(shi),彈(dan)性(xing)元件起主要(yao)作用。
(2) 在懸架(jia)伸(shen)張行程中(zhong)(車橋和車架(jia)相(xiang)互遠(yuan)離),減震(zhen)(zhen)器阻尼(ni)力應大,迅速減震(zhen)(zhen)。
(3) 當(dang)車橋(或車輪(lun))與車橋間的(de)相對(dui)速(su)度過大時,要求減震器能(neng)自(zi)動(dong)加大液流量,使阻尼力始終保持在(zai)一定限(xian)度之(zhi)內,以(yi)避(bi)免承受過大的(de)沖擊載荷。
在(zai)汽車懸架系統中廣泛(fan)采(cai)(cai)用的(de)是筒式減震(zhen)(zhen)(zhen)器(qi),且在(zai)壓縮和伸張行程中均能起(qi)減震(zhen)(zhen)(zhen)作用叫雙向作用式減震(zhen)(zhen)(zhen)器(qi),還有采(cai)(cai)用新式減震(zhen)(zhen)(zhen)器(qi),它包括充氣式減震(zhen)(zhen)(zhen)器(qi)和阻力(li)可調式減震(zhen)(zhen)(zhen)器(qi)。
汽車減振器的安裝方法如下:
1、將(jiang)車輛駛入(ru)工位,正確停放(fang)。將(jiang)舉升機(ji)支(zhi)(zhi)撐(cheng)(cheng)座(zuo)伸入(ru)車輛底部(bu),確保(bao)支(zhi)(zhi)撐(cheng)(cheng)座(zuo)和車輛車身支(zhi)(zhi)撐(cheng)(cheng)點良好接(jie)觸。取下(xia)(xia)接(jie)雨板、雨刷器,拆卸輪胎(tai)(tai),拆卸下(xia)(xia)來的(de)輪胎(tai)(tai)平(ping)穩的(de)放(fang)在地(di)上(shang),外側朝上(shang),將(jiang)輪胎(tai)(tai)螺絲(si)放(fang)在工具車上(shang);
2、逐步(bu)拆(chai)(chai)(chai)卸連(lian)接桿的螺(luo)絲(si),剎車油(you)(you)管(guan)螺(luo)絲(si),剎車ABS線。螺(luo)絲(si)拆(chai)(chai)(chai)卸后整理好放在工具車上(注(zhu)意(yi):小心(xin)拆(chai)(chai)(chai)卸油(you)(you)管(guan)和ABS線不(bu)要(yao)損(sun)壞)半軸螺(luo)帽取(qu)下(xia)(xia),拆(chai)(chai)(chai)下(xia)(xia)自動系統。(注(zhu)意(yi):合理固(gu)定卡鉗,不(bu)要(yao)損(sun)壞油(you)(you)管(guan)。)拆(chai)(chai)(chai)下(xia)(xia)方向拉桿(注(zhu)意(yi):用(yong)(yong)專(zhuan)用(yong)(yong)工具取(qu)下(xia)(xia)球頭(tou))拆(chai)(chai)(chai)下(xia)(xia)車身高度傳感(gan)器(注(zhu)意(yi):小心(xin)拆(chai)(chai)(chai)下(xia)(xia),不(bu)要(yao)損(sun)壞)拆(chai)(chai)(chai)下(xia)(xia)下(xia)(xia)控(kong)制臂球頭(tou)取(qu)下(xia)(xia)上座連(lian)接螺(luo)栓,將減震器總成及轉向節總成一并拿出(chu)。(注(zhu)意(yi):需(xu)兩人配合操作(zuo),避免更換相關部件(jian)損(sun)壞);
3、原(yuan)車(che)(che)減(jian)(jian)震(zhen)(zhen)器(qi)總(zong)(zong)成(cheng)(cheng)已拆(chai)卸完(wan)成(cheng)(cheng),開始更換(huan)新的減(jian)(jian)震(zhen)(zhen)器(qi)總(zong)(zong)成(cheng)(cheng)。取出新的減(jian)(jian)震(zhen)(zhen)器(qi)總(zong)(zong)成(cheng)(cheng),對比新舊無誤后方能安(an)裝。將(jiang)新的減(jian)(jian)震(zhen)(zhen)器(qi)總(zong)(zong)成(cheng)(cheng)安(an)裝在轉向節總(zong)(zong)成(cheng)(cheng)上(shang),將(jiang)減(jian)(jian)震(zhen)(zhen)器(qi)總(zong)(zong)成(cheng)(cheng)及(ji)轉向節總(zong)(zong)成(cheng)(cheng)一同裝配(pei)回(hui)車(che)(che)輛。把ABS線、油管、拉(la)桿球(qiu)頭(tou)恢(hui)復原(yuan)位。將(jiang)自動系統(tong)全部復原(yuan),仔細(xi)檢(jian)查油管及(ji)其(qi)他(ta)線路(lu)有(you)無干(gan)涉。將(jiang)車(che)(che)胎(tai)裝配(pei)回(hui)車(che)(che)(注意:仔細(xi)擰緊輪胎(tai)螺栓)依次將(jiang)接雨板、雨刷器(qi)裝配(pei)回(hui)原(yuan)車(che)(che)。(注意:安(an)裝完(wan)成(cheng)(cheng)之后,要記得調試(shi)(shi)雨刷器(qi))安(an)裝完(wan)畢,進行路(lu)試(shi)(shi)
傳祺(qi)GM8是廣汽傳祺(qi)旗下的(de)一款公(gong)務(wu)MPV。在(zai)2017年11月17日開(kai)幕的(de)廣州車展上(shang)正式發(fa)布并開(kai)始預售。2017年12月30日,傳祺(qi)GM8正式上(shang)市(shi),售價(jia)區間為17.68-25.98萬元。
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