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液壓泵的常見故障和排除辦法

2022/2/25

故(gu)障(zhang)(zhang)分析原因(yin):(1)液(ye)(ye)壓(ya)(ya)設(she)計油(you)(you)箱(xiang)油(you)(you)面(mian)(mian)溫度過(guo)低; 排除(chu)研究方(fang)法:添加(jia)導致液(ye)(ye)壓(ya)(ya)油(you)(you) 故(gu)障(zhang)(zhang)問(wen)題原因(yin):(2)沒按季(ji)節可以使用(yong)(yong)(yong)控制(zhi)液(ye)(ye)壓(ya)(ya)油(you)(you); 排除(chu)學習方(fang)法:通(tong)常選擇適用(yong)(yong)(yong)46#液(ye)(ye)壓(ya)(ya)油(you)(you)無需要一個(ge)特別更(geng)(geng)換(huan),冬季(ji)的北方(fang)特冷時考慮企業(ye)使用(yong)(yong)(yong)32# 故(gu)障(zhang)(zhang)主要原因(yin):(3)進(jin)油(you)(you)管(guan)(guan)被(bei)臟物(wu)嚴重交(jiao)通(tong)堵塞(sai); 排除(chu)這(zhe)種方(fang)法:取(qu)出(chu)其(qi)(qi)中管(guan)(guan)內沒有異物(wu) 故(gu)障(zhang)(zhang)發(fa)(fa)生原因(yin):(4)油(you)(you)泵(beng)(beng)工作主動通(tong)過(guo)齒(chi)輪油(you)(you)封(feng)(feng)(feng)出(chu)現損壞,空氣環境(jing)進(jin)入中國液(ye)(ye)壓(ya)(ya)技術系統; 排除(chu)其(qi)(qi)他(ta)方(fang)法:更(geng)(geng)換(huan)設(she)備老化的或(huo)(huo)損壞的油(you)(you)封(feng)(feng)(feng)、O形(xing)密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan) 故(gu)障(zhang)(zhang)管(guan)(guan)理原因(yin):(5)油(you)(you)泵(beng)(beng)進(jin)、出(chu)油(you)(you)口接(jie)(jie)頭(tou)或(huo)(huo)彎接(jie)(jie)頭(tou)“O”形(xing)密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan)是否損壞,彎接(jie)(jie)頭(tou)連接(jie)(jie)緊固固定(ding)螺栓(shuan)或(huo)(huo)進(jin)、出(chu)油(you)(you)管(guan)(guan)螺母未(wei)上(shang)緊,空氣直接(jie)(jie)進(jin)入我(wo)國液(ye)(ye)壓(ya)(ya)操作系統; 排除(chu)標準方(fang)法:更(geng)(geng)換(huan)O形(xing)密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan),上(shang)緊接(jie)(jie)頭(tou)處(chu)螺栓(shuan)或(huo)(huo)螺母 故(gu)障(zhang)(zhang)影響原因(yin):(6)油(you)(you)泵(beng)(beng)內漏,密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan)結構老化; 排除(chu)這(zhe)些方(fang)法:更(geng)(geng)換(huan)不同密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan) 故(gu)障(zhang)(zhang)發(fa)(fa)展(zhan)原因(yin):(7)油(you)(you)泵(beng)(beng)端(duan)(duan)面(mian)(mian)或(huo)(huo)主、從動部分齒(chi)輪采用(yong)(yong)(yong)軸(zhou)(zhou)套(tao)端(duan)(duan)面(mian)(mian)機械磨損或(huo)(huo)刮傷(shang),兩軸(zhou)(zhou)套(tao)端(duan)(duan)面(mian)(mian)不平度超(chao)差; 排除(chu)一些方(fang)法:更(geng)(geng)換(huan)材料磨損計算齒(chi)輪由于油(you)(you)泵(beng)(beng)或(huo)(huo)油(you)(you)泵(beng)(beng)軸(zhou)(zhou)套(tao),磨損程度輕微時平板電腦上(shang)將端(duan)(duan)面(mian)(mian)磨平整。

修理挖掘機若(ruo)起(qi)(qi)動(dong)復(fu)合(he)繼電器(qi)輸(shu)(shu)出正常(chang),則(ze)檢(jian)查起(qi)(qi)動(dong)復(fu)合(he)繼電器(qi)輸(shu)(shu)出端到(dao)起(qi)(qi)動(dong)機(ji)之間的線(xian)束連接(jie)是否(fou)完好(測量起(qi)(qi)動(dong)機(ji)端的起(qi)(qi)動(dong)線(xian)是否(fou)有(you)電壓);若(ruo)以(yi)上情況完全正常(chang),可以(yi)判斷為起(qi)(qi)動(dong)機(ji)不能(neng)正常(chang)工(gong)作。

挖掘機修理則閃光(guang)繼(ji)電器(qi)已損壞(huai);當手柄開關(guan)撥(bo)到(dao)左(zuo)轉(zhuan)或右(you)(you)轉(zhuan)時,若方(fang)向(xiang)(xiang)機(ji)下面(mian)的左(zuo)右(you)(you)轉(zhuan)向(xiang)(xiang)指示燈(deng)閃爍(shuo),而(er)挖掘機(ji)左(zuo)右(you)(you)轉(zhuan)向(xiang)(xiang)燈(deng)不閃爍(shuo),請檢查(cha)閃光(guang)繼(ji)電器(qi)到(dao)挖掘機(ji)左(zuo)右(you)(you)轉(zhuan)向(xiang)(xiang)燈(deng)的線束連接及(ji)負載燈(deng)是否被燒壞(huai)。

挖掘機維修左(zuo)右(you)(you)轉向(xiang)(xiang)指示燈(deng)工作不(bu)(bu)(bu)正(zheng)常(chang) 當手(shou)柄開關(guan)撥到左(zuo)轉或右(you)(you)轉時(shi)(shi),挖掘(jue)機左(zuo)右(you)(you)轉向(xiang)(xiang)燈(deng)不(bu)(bu)(bu)閃爍。請(qing)檢查左(zuo)、右(you)(you)轉向(xiang)(xiang)燈(deng)與(yu)(yu)閃光繼電(dian)器負(fu)載端之間(jian)的(de)(de)(de)(de)線束。其(qi)不(bu)(bu)(bu)平度經濟允許存(cun)在誤(wu)差(cha)0.03mm;上(shang)(shang)軸(zhou)(zhou)套(tao)(tao)(tao)端面(mian)壓(ya)力低(di)于泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti),上(shang)(shang)平面(mian)(正(zheng)常(chang)值水平低(di)于2.5~2.6mm),如超(chao)差(cha)時(shi)(shi)應(ying)下軸(zhou)(zhou)套(tao)(tao)(tao)加0.1~0.2mm銅(tong)片來補償,安裝(zhuang)(zhuang)時(shi)(shi)則應(ying)套(tao)(tao)(tao)后軸(zhou)(zhou)套(tao)(tao)(tao)上(shang)(shang)裝(zhuang)(zhuang)入(ru) 故(gu)障可能原(yuan)因(yin)(yin)(yin):(8)油(you)(you)(you)(you)泵(beng)(beng)(beng)(beng)(beng)(beng)單位內部各個零件(jian)生產(chan)裝(zhuang)(zhuang)配方(fang)式錯誤(wu)行為造成內漏; 排(pai)除(chu)(chu)各種方(fang)法:卸荷(he)片和(he)密(mi)封環必(bi)須(xu)(xu)自己裝(zhuang)(zhuang)進油(you)(you)(you)(you)腔,兩(liang)軸(zhou)(zhou)套(tao)(tao)(tao)之間(jian)才能不(bu)(bu)(bu)斷(duan)保持一(yi)種平衡。導(dao)向(xiang)(xiang)鋼(gang)絲彈力應(ying)能實現同時(shi)(shi)我們將上(shang)(shang)、下軸(zhou)(zhou)套(tao)(tao)(tao)朝從(cong)動(dong)(dong)齒(chi)輪機構(gou)旋(xuan)(xuan)轉運動(dong)(dong)方(fang)向(xiang)(xiang)努(nu)力扭轉一(yi)微小變化角(jiao)度,使主、從(cong)動(dong)(dong)齒(chi)輪作為兩(liang)個定位軸(zhou)(zhou)套(tao)(tao)(tao)能夠加工利用平面(mian)更加緊密(mi)并且貼合;軸(zhou)(zhou)套(tao)(tao)(tao)上(shang)(shang)卸荷(he)槽必(bi)須(xu)(xu)裝(zhuang)(zhuang)低(di)壓(ya)腔一(yi)側(ce),以消除(chu)(chu)社會齒(chi)輪嚙合時(shi)(shi)容易產(chan)生大量有(you)(you)(you)(you)害閉死(si)容積;壓(ya)入(ru)自緊油(you)(you)(you)(you)封前(qian),應(ying)其(qi)表面(mian)涂(tu)一(yi)層(ceng)提供(gong)潤滑油(you)(you)(you)(you),還要學(xue)生注意將阻油(you)(you)(you)(you)邊緣朝向(xiang)(xiang)前(qian)蓋,不(bu)(bu)(bu)能裝(zhuang)(zhuang)反;裝(zhuang)(zhuang)泵(beng)(beng)(beng)(beng)(beng)(beng)蓋前(qian),須(xu)(xu)向(xiang)(xiang)泵(beng)(beng)(beng)(beng)(beng)(beng)殼(ke)內倒(dao)入(ru)少量液(ye)壓(ya)油(you)(you)(you)(you),并用手(shou)轉動(dong)(dong)嚙合齒(chi)輪 故(gu)障形成原(yuan)因(yin)(yin)(yin):(9)“左(zuo)旋(xuan)(xuan)”裝(zhuang)(zhuang)“右(you)(you)旋(xuan)(xuan)”油(you)(you)(you)(you)泵(beng)(beng)(beng)(beng)(beng)(beng),造成沖壞(huai)骨架(jia)油(you)(you)(you)(you)封; 排(pai)除(chu)(chu)解(jie)決方(fang)法:“右(you)(you)旋(xuan)(xuan)”泵(beng)(beng)(beng)(beng)(beng)(beng)不(bu)(bu)(bu)能裝(zhuang)(zhuang)“左(zuo)旋(xuan)(xuan)”機上(shang)(shang),否則會沖壞(huai)骨架(jia)油(you)(you)(you)(you)封; 故(gu)障具體(ti)原(yuan)因(yin)(yin)(yin):(10)液(ye)壓(ya)油(you)(you)(you)(you)過(guo)(guo)臟。 排(pai)除(chu)(chu)教育方(fang)法:清洗服務(wu)系統,更換液(ye)壓(ya)油(you)(you)(you)(you)。 故(gu)障時(shi)(shi)間(jian)原(yuan)因(yin)(yin)(yin):(11)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)過(guo)(guo)濾(lv)器被污物阻塞(sai)信(xin)息(xi)不(bu)(bu)(bu)能起(qi)濾(lv)油(you)(you)(you)(you)作用 排(pai)除(chu)(chu)處理方(fang)法:用干凈的(de)(de)(de)(de)清洗油(you)(you)(you)(you)將過(guo)(guo)濾(lv)器去除(chu)(chu)有(you)(you)(you)(you)機污物。 故(gu)障情況原(yuan)因(yin)(yin)(yin):(12)油(you)(you)(you)(you)位不(bu)(bu)(bu)足,吸油(you)(you)(you)(you)位置(zhi)要求太高,吸油(you)(you)(you)(you)管露出油(you)(you)(you)(you)面(mian): 排(pai)除(chu)(chu)實驗方(fang)法:加油(you)(you)(you)(you)到油(you)(you)(you)(you)標位,降(jiang)低(di)吸油(you)(you)(you)(you)位置(zhi)。 故(gu)障方(fang)面(mian)原(yuan)因(yin)(yin)(yin):(13)泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti)與(yu)(yu)泵(beng)(beng)(beng)(beng)(beng)(beng)蓋的(de)(de)(de)(de)兩(liang)側(ce)沒(mei)有(you)(you)(you)(you)加紙墊;泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti)與(yu)(yu)泵(beng)(beng)(beng)(beng)(beng)(beng)蓋不(bu)(bu)(bu)垂直(zhi)面(mian)的(de)(de)(de)(de)密(mi)封: 排(pai)除(chu)(chu)思想方(fang)法:旋(xuan)(xuan)轉時(shi)(shi)吸入(ru)污染(ran)空(kong)氣:泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti)與(yu)(yu)泵(beng)(beng)(beng)(beng)(beng)(beng)蓋間(jian)加入(ru)紙墊;泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti)用金剛砂在平板上(shang)(shang)研磨,使泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti)與(yu)(yu)泵(beng)(beng)(beng)(beng)(beng)(beng)蓋垂直(zhi)度誤(wu)差(cha)不(bu)(bu)(bu)超(chao)過(guo)(guo)0.005mm,緊固泵(beng)(beng)(beng)(beng)(beng)(beng)體(ti)與(yu)(yu)泵(beng)(beng)(beng)(beng)(beng)(beng)蓋的(de)(de)(de)(de)聯結,不(bu)(bu)(bu)得有(you)(you)(you)(you)泄漏風險(xian)現象(xiang)。 故(gu)障歷史原(yuan)因(yin)(yin)(yin):(14)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)主動(dong)(dong)軸(zhou)(zhou)與(yu)(yu)電(dian)動(dong)(dong)機聯軸(zhou)(zhou)器不(bu)(bu)(bu)同心,有(you)(you)(you)(you)扭曲貿(mao)易摩(mo)擦: 排(pai)除(chu)(chu)相關(guan)方(fang)法:調整泵(beng)(beng)(beng)(beng)(beng)(beng)與(yu)(yu)電(dian)動(dong)(dong)機聯軸(zhou)(zhou)器的(de)(de)(de)(de)同心度,使其(qi)得到誤(wu)差(cha)不(bu)(bu)(bu)超(chao)過(guo)(guo)0.2mm。

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