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例如(ru)：活(huo)塞與活(huo)塞桿不同心或(huo)活(huo)塞桿彎曲(qu)，液壓缸(gang)或(huo)活(huo)塞桿對導軌安裝位(wei)置(zhi)偏移，密(mi)封環裝得過(guo)緊或(huo)過(guo)松等。解決方法(fa)是(shi)重新修理(li)或(huo)調整，更(geng)換損傷的零件及清除鐵屑。

(2)潤(run)滑不良或液(ye)壓缸(gang)孔徑加工超差(cha)。因為活塞與(yu)缸(gang)筒、導軌與(yu)活塞桿等均有相對運動，如果潤(run)滑不良或液(ye)壓缸(gang)孔徑超差(cha)，就(jiu)會加劇(ju)磨(mo)損，使缸(gang)筒中心(xin)線直線性降(jiang)低。（威海力建冶金液(ye)壓設備(bei)廠)

液(ye)壓缸結構基(ji)本上可以分為缸筒和(he)缸蓋、活(huo)塞和(he)活(huo)塞桿、密封裝置、緩沖裝置和(he)排氣裝置五個(ge)部分。今天威海力(li)建小編(bian)著重帶著大家了解一下缸筒和(he)缸蓋。

 缸(gang)筒(tong)和缸(gang)蓋

一般來說，缸(gang)筒(tong)(tong)(tong)和缸(gang)蓋的(de)(de)結(jie)構(gou)(gou)形(xing)(xing)式和其使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)材料有關。工(gong)(gong)作(zuo)壓(ya)力p＜10MPa時(shi)，使(shi)(shi)用(yong)(yong)(yong)(yong)鑄鐵；p＜20MPa時(shi)，使(shi)(shi)用(yong)(yong)(yong)(yong)無(wu)縫鋼(gang)(gang)(gang)(gang)管(guan)；p＞20MPa時(shi)，使(shi)(shi)用(yong)(yong)(yong)(yong)鑄鋼(gang)(gang)(gang)(gang)或鍛鋼(gang)(gang)(gang)(gang)。法(fa)蘭連(lian)接(jie)(jie)式，結(jie)構(gou)(gou)簡單(dan)，容易(yi)(yi)加(jia)(jia)工(gong)(gong)，也容易(yi)(yi)裝拆，但(dan)外形(xing)(xing)尺寸和重量(liang)都較(jiao)大，常用(yong)(yong)(yong)(yong)于鑄鐵制的(de)(de)缸(gang)筒(tong)(tong)(tong)上。半環(huan)連(lian)接(jie)(jie)式，它(ta)(ta)的(de)(de)缸(gang)筒(tong)(tong)(tong)壁部(bu)因開了環(huan)形(xing)(xing)槽而削弱了強(qiang)度，為(wei)此有時(shi)要(yao)加(jia)(jia)厚(hou)缸(gang)壁，它(ta)(ta)容易(yi)(yi)加(jia)(jia)工(gong)(gong)和裝拆，重量(liang)較(jiao)輕，常用(yong)(yong)(yong)(yong)于無(wu)縫鋼(gang)(gang)(gang)(gang)管(guan)或鍛鋼(gang)(gang)(gang)(gang)制的(de)(de)缸(gang)筒(tong)(tong)(tong)上。螺(luo)紋連(lian)接(jie)(jie)式，它(ta)(ta)的(de)(de)缸(gang)筒(tong)(tong)(tong)端部(bu)結(jie)構(gou)(gou)復雜，外徑加(jia)(jia)工(gong)(gong)時(shi)要(yao)求保證內外徑同心，裝拆要(yao)使(shi)(shi)用(yong)(yong)(yong)(yong)工(gong)(gong)具，它(ta)(ta)的(de)(de)外形(xing)(xing)尺寸和重量(liang)都較(jiao)小，常用(yong)(yong)(yong)(yong)于無(wu)縫鋼(gang)(gang)(gang)(gang)管(guan)或鑄鋼(gang)(gang)(gang)(gang)制的(de)(de)缸(gang)筒(tong)(tong)(tong)上。拉桿(gan)連(lian)接(jie)(jie)式，結(jie)構(gou)(gou)的(de)(de)通用(yong)(yong)(yong)(yong)性大，容易(yi)(yi)加(jia)(jia)工(gong)(gong)和裝拆，但(dan)外形(xing)(xing)尺寸較(jiao)大，且較(jiao)重。焊接(jie)(jie)連(lian)接(jie)(jie)式，結(jie)構(gou)(gou)簡單(dan)，尺寸小，但(dan)缸(gang)底處內徑不(bu)易(yi)(yi)加(jia)(jia)工(gong)(gong)，且可能引起變(bian)形(xing)(xing)。

叉(cha)車液壓系統(tong)常見(jian)的故(gu)障檢查與排(pai)除

 叉車的主(zhu)要液壓作業部(bu)分有起升(sheng)缸和傾斜缸，其故障的檢查與排除方法(fa)列舉如(ru)下 ：

1、叉車空載時(shi)不能起升和傾斜

故(gu)障檢查(cha)1：系統油量(liang)不足(zu)

故障排(pai)除：加油(you)(you)至油(you)(you)標線。

故障(zhang)排(pai)除2：齒輪泵排(pai)量不足齒頂隙和齒側隙過(guo)大

故障檢查：更換油泵(beng)或零件

故障檢查(cha)3：多路(lu)閥進(jin)油(you)路(lu)堵(du)塞

故障排(pai)除：疏(shu)通(tong)多路閥油路