答:制動鉗體(ti)一般裝配在轉向節后側,這可使制動時(shi)相(xiang)對地減輕(qing)前輪軸承的(de)負荷。但是,有(you)的(de)車(che)型(xing)把鉗體(ti)裝于軸的(de)前方,加重(zhong)了前輪軸承的(de)合成(cheng)(cheng)載荷,容易(yi)造成(cheng)(cheng)前輪軸承的(de)提前損壞(huai)。因此,對于采用這種結構(gou)的(de)車(che)輪,應適(shi)時(shi)地進行調整和(he)檢修。
答:制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)時(shi)(shi),若有“嗄(a)吱(zhi)、嗄(a)吱(zhi)”的(de)(de)(de)(de)噪(zao)(zao)聲(sheng)時(shi)(shi),可(ke)采用(yong)下述方(fang)(fang)(fang)法(fa)(fa)排除: 1、在(zai)(zai)(zai)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)器(qi)鉗(qian)體活塞和(he)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)襯(chen)(chen)片(pian)之(zhi)間(jian),加(jia)一(yi)防噪(zao)(zao)聲(sheng)片(pian),使(shi)活塞上(shang)形成(cheng)一(yi)傾斜(xie)度。從(cong)而保證(zheng)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)時(shi)(shi)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)襯(chen)(chen)塊和(he)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)盤柔性(xing)接(jie)觸,使(shi)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)襯(chen)(chen)塊在(zai)(zai)(zai)正常磨損狀態下無異常噪(zao)(zao)聲(sheng)出(chu)現。 2、選(xuan)擇(ze)材質軟些(xie)(xie)、密度小些(xie)(xie)的(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)襯(chen)(chen)塊材料。 3、制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)時(shi)(shi),制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)襯(chen)(chen)塊向一(yi)側移動(dong)(dong)(dong),可(ke)能(neng)出(chu)現撞擊聲(sheng)響。這(zhe)是(shi)由于(yu)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)襯(chen)(chen)塊和(he)鉗(qian)體之(zhi)間(jian)的(de)(de)(de)(de)間(jian)隙(xi)過大所致,可(ke)用(yong)鍍覆焊錫的(de)(de)(de)(de)方(fang)(fang)(fang)法(fa)(fa)消除間(jian)隙(xi)。但須注意,應(ying)使(shi)焊錫鍍覆在(zai)(zai)(zai)與(yu)行駛方(fang)(fang)(fang)向相反的(de)(de)(de)(de)一(yi)側,防止在(zai)(zai)(zai)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)力的(de)(de)(de)(de)作(zuo)用(yong)下失效。 前(qian)輪(lun)軸承損壞(huai) 制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)鉗(qian)體一(yi)般(ban)裝配在(zai)(zai)(zai)轉向節后側,這(zhe)可(ke)使(shi)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)時(shi)(shi)相對地(di)減輕前(qian)輪(lun)軸承的(de)(de)(de)(de)負(fu)荷。但是(shi),有的(de)(de)(de)(de)車型(xing)把鉗(qian)體裝于(yu)軸的(de)(de)(de)(de)前(qian)方(fang)(fang)(fang),加(jia)重(zhong)了前(qian)輪(lun)軸承的(de)(de)(de)(de)合成(cheng)載(zai)荷,容(rong)易造成(cheng)前(qian)輪(lun)軸承的(de)(de)(de)(de)提前(qian)損壞(huai)。因(yin)此(ci),對于(yu)采用(yong)這(zhe)種結構(gou)的(de)(de)(de)(de)車輪(lun),應(ying)適時(shi)(shi)地(di)進行調整(zheng)和(he)檢修。
答:一、氣(qi)阻,二、制動力不(bu)足,三、制動時有噪(zao)聲,四(si)、前輪軸(zhou)承損壞
答:盤(pan)式制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器的(de)(de)發熱部(bu)位集中在(zai)很窄的(de)(de)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)襯塊上(shang),其(qi)單位壓(ya)力又(you)比鼓式制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器大,制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)襯塊和(he)鉗體的(de)(de)活塞(sai)直接接觸,因(yin)此制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)時的(de)(de)熱量極(ji)易傳給(gei)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)。這樣(yang),使盤(pan)式制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器容易產生氣(qi)阻現象(xiang)。但(dan)是(shi),若采取相應的(de)(de)措(cuo)施,也可(ke)(ke)防止(zhi)氣(qi)阻現象(xiang)的(de)(de)發生。植物(wu)油型制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)無法滿足盤(pan)式制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器的(de)(de)使用要(yao)求,因(yin)此必(bi)須使用高(gao)沸點(dian)的(de)(de)合成制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)。但(dan)是(shi),合成制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)具(ju)有(you)吸水特性。在(zai)某些使用條件中,沸點(dian)下降很快(kuai)。為(wei)防止(zhi)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)沸點(dian)的(de)(de)明(ming)顯下降,一般常(chang)采用以(yi)下一些措(cuo)施:(1)定期更換(huan)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)。夏(xia)季3個(ge)月或(huo)行駛 smart tags"/>5000km;冬季6個(ge)月或(huo)行駛1000km后(hou),即將(jiang)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)更新(xin)。(2)不同(tong)性質的(de)(de)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)不可(ke)(ke)互換(huan)使用或(huo)混用。(3)密閉保(bao)存制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)。要(yao)限 制(zhi)(zhi)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)溫度升高(gao),應保(bao)證活塞(sai)能(neng)靈(ling)活地(di)自動(dong)(dong)(dong)(dong)(dong)(dong)回位,避(bi)免(mian)因(yin)銹蝕、發卡使制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器打(da)滑或(huo)發咬。當制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)襯塊磨耗過多時,傳到制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)(ye)(ye)(ye)的(de)(de)熱量也會(hui)迅速增(zeng)加。
答:盤式制(zhi)(zhi)(zhi)(zhi)動(dong)器制(zhi)(zhi)(zhi)(zhi)動(dong)力不足時,可采用(yong)(yong)下(xia)述方法予(yu)以(yi)解決: 1、改(gai)變(bian)制(zhi)(zhi)(zhi)(zhi)動(dong)襯塊(kuai)(kuai)材料可換用(yong)(yong)稍軟的(de)制(zhi)(zhi)(zhi)(zhi)動(dong)襯塊(kuai)(kuai)材料,使摩擦(ca)系數相(xiang)對得到(dao)提高,制(zhi)(zhi)(zhi)(zhi)動(dong)力變(bian)大(da)。 2、清除制(zhi)(zhi)(zhi)(zhi)動(dong)襯塊(kuai)(kuai)排屑槽中的(de)異物如果(guo)制(zhi)(zhi)(zhi)(zhi)動(dong)襯塊(kuai)(kuai)的(de)排屑槽被(bei)異物覆蓋(gai),制(zhi)(zhi)(zhi)(zhi)動(dong)時將失(shi)卻排出塵土、刮(gua)去水分的(de)作用(yong)(yong),使制(zhi)(zhi)(zhi)(zhi)動(dong)力降(jiang)低。
答:制(zhi)(zhi)動(dong)時(shi)(shi),若有(you)“嗄(a)吱、嗄(a)吱”的(de)噪聲(sheng)時(shi)(shi),可(ke)采用下(xia)述方(fang)法排(pai)除: 1、在(zai)制(zhi)(zhi)動(dong)器鉗體活(huo)(huo)塞和(he)制(zhi)(zhi)動(dong)襯片(pian)之(zhi)(zhi)間(jian)(jian),加(jia)一(yi)防(fang)噪聲(sheng)片(pian),使(shi)活(huo)(huo)塞上形成(cheng)一(yi)傾斜度。從(cong)而保證(zheng)制(zhi)(zhi)動(dong)時(shi)(shi)制(zhi)(zhi)動(dong)襯塊(kuai)和(he)制(zhi)(zhi)動(dong)盤柔性接觸(chu),使(shi)制(zhi)(zhi)動(dong)襯塊(kuai)在(zai)正常磨(mo)損(sun)狀態下(xia)無異常噪聲(sheng)出(chu)現(xian)。 2、選擇材(cai)質(zhi)軟(ruan)些、密度小(xiao)些的(de)制(zhi)(zhi)動(dong)襯塊(kuai)材(cai)料。 3、制(zhi)(zhi)動(dong)時(shi)(shi),制(zhi)(zhi)動(dong)襯塊(kuai)向一(yi)側移動(dong),可(ke)能出(chu)現(xian)撞擊(ji)聲(sheng)響。這是由于制(zhi)(zhi)動(dong)襯塊(kuai)和(he)鉗體之(zhi)(zhi)間(jian)(jian)的(de)間(jian)(jian)隙過(guo)大(da)所致,可(ke)用鍍(du)覆焊錫(xi)(xi)的(de)方(fang)法消除間(jian)(jian)隙。但須(xu)注意,應使(shi)焊錫(xi)(xi)鍍(du)覆在(zai)與行駛方(fang)向相反的(de)一(yi)側,防(fang)止在(zai)制(zhi)(zhi)動(dong)力(li)的(de)作用下(xia)失效(xiao)。