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① 裝(zhuang)配時混入異(yi)物造(zao)成傷(shang)痕(hen)液(ye)壓(ya)缸在總組裝(zhuang)前，所(suo)有零件必須充分去除毛刺并洗凈， 零件上帶有毛刺或臟物進(jin)行安裝(zhuang)時，由于'別(bie)勁'及零件自重，異(yi)物易嵌進(jin)缸壁表面，造(zao)成傷(shang)痕(hen)。

② 安裝(zhuang)零件中(zhong)發(fa)生的傷痕液壓缸(gang)安裝(zhuang)時，活塞及缸(gang)蓋等零件質量(liang)大(da)(da)、尺寸大(da)(da)、慣(guan)性大(da)(da)，即使有起重設備(bei)輔助安裝(zhuang)，由于(yu)規定配合間隙都較(jiao)小，無(wu)論(lun)怎樣均會別(bie)勁投入，

液(ye)壓缸(gang)結構基本上可(ke)以分為缸(gang)筒和(he)缸(gang)蓋、活塞(sai)和(he)活塞(sai)桿、密封裝(zhuang)(zhuang)置(zhi)、緩沖(chong)裝(zhuang)(zhuang)置(zhi)和(he)排氣裝(zhuang)(zhuang)置(zhi)五(wu)個部分。今(jin)天威海力建小編著(zhu)重帶著(zhu)大家(jia)了解一(yi)下缸(gang)筒和(he)缸(gang)蓋。

 缸筒和(he)缸蓋

一般來說，缸(gang)筒(tong)(tong)和(he)(he)缸(gang)蓋的(de)(de)結構(gou)(gou)形(xing)(xing)式(shi)和(he)(he)其(qi)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)材料有關。工作(zuo)壓力p＜10MPa時，使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)鑄鐵；p＜20MPa時，使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)無縫鋼(gang)管(guan)；p＞20MPa時，使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)鑄鋼(gang)或(huo)鍛鋼(gang)。法蘭(lan)連(lian)(lian)(lian)接(jie)式(shi)，結構(gou)(gou)簡單(dan)，容易加(jia)(jia)(jia)工，也(ye)容易裝(zhuang)(zhuang)拆，但外形(xing)(xing)尺(chi)寸(cun)和(he)(he)重(zhong)(zhong)(zhong)量都較大(da)，常(chang)(chang)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于鑄鐵制的(de)(de)缸(gang)筒(tong)(tong)上。半環連(lian)(lian)(lian)接(jie)式(shi)，它的(de)(de)缸(gang)筒(tong)(tong)壁部因(yin)開了(le)環形(xing)(xing)槽(cao)而削弱了(le)強度，為此有時要(yao)(yao)加(jia)(jia)(jia)厚缸(gang)壁，它容易加(jia)(jia)(jia)工和(he)(he)裝(zhuang)(zhuang)拆，重(zhong)(zhong)(zhong)量較輕，常(chang)(chang)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于無縫鋼(gang)管(guan)或(huo)鍛鋼(gang)制的(de)(de)缸(gang)筒(tong)(tong)上。螺(luo)紋連(lian)(lian)(lian)接(jie)式(shi)，它的(de)(de)缸(gang)筒(tong)(tong)端部結構(gou)(gou)復雜，外徑加(jia)(jia)(jia)工時要(yao)(yao)求保證內外徑同心，裝(zhuang)(zhuang)拆要(yao)(yao)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)工具，它的(de)(de)外形(xing)(xing)尺(chi)寸(cun)和(he)(he)重(zhong)(zhong)(zhong)量都較小(xiao)，常(chang)(chang)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于無縫鋼(gang)管(guan)或(huo)鑄鋼(gang)制的(de)(de)缸(gang)筒(tong)(tong)上。拉(la)桿連(lian)(lian)(lian)接(jie)式(shi)，結構(gou)(gou)的(de)(de)通用(yong)(yong)(yong)(yong)(yong)(yong)(yong)性大(da)，容易加(jia)(jia)(jia)工和(he)(he)裝(zhuang)(zhuang)拆，但外形(xing)(xing)尺(chi)寸(cun)較大(da)，且較重(zhong)(zhong)(zhong)。焊(han)接(jie)連(lian)(lian)(lian)接(jie)式(shi)，結構(gou)(gou)簡單(dan)，尺(chi)寸(cun)小(xiao)，但缸(gang)底處內徑不易加(jia)(jia)(jia)工，且可能引起(qi)變(bian)形(xing)(xing)。

3、叉車叉架下降速度太(tai)快

故障(zhang)檢查：節流閥卡(ka)在打(da)開位(wei)置或裝(zhuang)反

故障排(pai)除：重裝節流(liu)閥

4、叉(cha)車(che)起升(sheng)缸(gang)自(zi)由下滑量太大(da)或傾斜缸(gang)自(zi)傾角(jiao)太大(da)

故障檢查：換向閥(fa)閥(fa)桿內泄漏太大，傾斜缸活塞密(mi)封圈失效內漏

故障(zhang)排除：更換(huan)閥桿(gan)或更換(huan)密(mi)封圈

5、液壓缸活塞桿帶油

故(gu)障檢查：油(you)封是(shi)否損(sun)壞

故障排除：更換油(you)封（威海力建(jian)冶金液壓設(she)備廠(chang)推薦）