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液壓(ya)缸結構基本上可以(yi)分為缸筒(tong)和(he)缸蓋、活(huo)塞和(he)活(huo)塞桿、密封裝(zhuang)置(zhi)(zhi)、緩(huan)沖裝(zhuang)置(zhi)(zhi)和(he)排氣裝(zhuang)置(zhi)(zhi)五個(ge)部分。今天威(wei)海力(li)建小編著重帶著大家了解一下缸筒(tong)和(he)缸蓋。

 缸筒和缸蓋

一般來說，缸(gang)(gang)筒(tong)(tong)和(he)(he)缸(gang)(gang)蓋的(de)結構形式(shi)和(he)(he)其使(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)的(de)材(cai)料(liao)有關。工(gong)作壓力p＜10MPa時，使(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)鑄鐵；p＜20MPa時，使(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)無縫鋼(gang)(gang)(gang)管(guan)；p＞20MPa時，使(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)鑄鋼(gang)(gang)(gang)或鍛(duan)鋼(gang)(gang)(gang)。法(fa)蘭連(lian)(lian)接式(shi)，結構簡單，容(rong)(rong)(rong)易(yi)(yi)加(jia)工(gong)，也容(rong)(rong)(rong)易(yi)(yi)裝(zhuang)(zhuang)拆，但外(wai)形尺寸(cun)和(he)(he)重(zhong)量都較(jiao)(jiao)大(da)(da)，常(chang)用(yong)(yong)(yong)(yong)于(yu)鑄鐵制的(de)缸(gang)(gang)筒(tong)(tong)上。半環連(lian)(lian)接式(shi)，它(ta)的(de)缸(gang)(gang)筒(tong)(tong)壁(bi)部(bu)因開了(le)環形槽(cao)而削弱了(le)強度(du)，為此(ci)有時要(yao)(yao)加(jia)厚缸(gang)(gang)壁(bi)，它(ta)容(rong)(rong)(rong)易(yi)(yi)加(jia)工(gong)和(he)(he)裝(zhuang)(zhuang)拆，重(zhong)量較(jiao)(jiao)輕，常(chang)用(yong)(yong)(yong)(yong)于(yu)無縫鋼(gang)(gang)(gang)管(guan)或鍛(duan)鋼(gang)(gang)(gang)制的(de)缸(gang)(gang)筒(tong)(tong)上。螺紋連(lian)(lian)接式(shi)，它(ta)的(de)缸(gang)(gang)筒(tong)(tong)端部(bu)結構復(fu)雜，外(wai)徑(jing)加(jia)工(gong)時要(yao)(yao)求保證內(nei)外(wai)徑(jing)同心，裝(zhuang)(zhuang)拆要(yao)(yao)使(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)工(gong)具，它(ta)的(de)外(wai)形尺寸(cun)和(he)(he)重(zhong)量都較(jiao)(jiao)小(xiao)，常(chang)用(yong)(yong)(yong)(yong)于(yu)無縫鋼(gang)(gang)(gang)管(guan)或鑄鋼(gang)(gang)(gang)制的(de)缸(gang)(gang)筒(tong)(tong)上。拉桿連(lian)(lian)接式(shi)，結構的(de)通用(yong)(yong)(yong)(yong)性大(da)(da)，容(rong)(rong)(rong)易(yi)(yi)加(jia)工(gong)和(he)(he)裝(zhuang)(zhuang)拆，但外(wai)形尺寸(cun)較(jiao)(jiao)大(da)(da)，且較(jiao)(jiao)重(zhong)。焊接連(lian)(lian)接式(shi)，結構簡單，尺寸(cun)小(xiao)，但缸(gang)(gang)底處內(nei)徑(jing)不易(yi)(yi)加(jia)工(gong)，且可能引起變形。

3、叉(cha)車叉(cha)架下降速度(du)太快

故障檢查：節流閥卡在打(da)開位(wei)置(zhi)或裝反

故障排除：重裝(zhuang)節流閥

4、叉車起(qi)升(sheng)缸自由下滑量(liang)太(tai)大(da)或傾(qing)(qing)斜缸自傾(qing)(qing)角(jiao)太(tai)大(da)

故(gu)障檢查(cha)：換向(xiang)閥(fa)閥(fa)桿內泄漏(lou)太(tai)大(da)，傾(qing)斜(xie)缸活塞密封圈失效(xiao)內漏(lou)

故障排(pai)除：更(geng)換(huan)閥(fa)桿或更(geng)換(huan)密封圈

5、液壓缸活(huo)塞桿(gan)帶油

故障檢查(cha)：油(you)封是否損壞

故(gu)障排除(chu)：更(geng)換油封（威海力建冶(ye)金液(ye)壓設備廠推薦）

零部件加(jia)(jia)(jia)工精(jing)度(du)(du)(du)(du)的(de)(de)(de)影響(xiang)問(wen)題(ti)，在液壓(ya)缸(gang)的(de)(de)(de)制造(zao)過程中應嚴(yan)格控制缸(gang)體內(nei)壁和活塞(sai)桿表面(mian)加(jia)(jia)(jia)工精(jing)度(du)(du)(du)(du)，特別(bie)是(shi)幾何精(jing)度(du)(du)(du)(du)，尤其直(zhi)線度(du)(du)(du)(du)是(shi)關鍵，在國(guo)內(nei)加(jia)(jia)(jia)工工藝中，活塞(sai)桿表面(mian)的(de)(de)(de)加(jia)(jia)(jia)工基本上(shang)是(shi)車后磨削，保(bao)證直(zhi)線度(du)(du)(du)(du)問(wen)題(ti)不大，但(dan)對于(yu)缸(gang)體內(nei)壁的(de)(de)(de)加(jia)(jia)(jia)工，其加(jia)(jia)(jia)工方法很(hen)多，有(you)鏜(tang)(tang)削-滾壓(ya)、鏜(tang)(tang)削-珩(heng)磨、直(zhi)接珩(heng)磨等(deng)，但(dan)由(you)于(yu)國(guo)內(nei)材料的(de)(de)(de)基礎水平較國(guo)外有(you)差距(ju)，管(guan)(guan)材坯料直(zhi)線度(du)(du)(du)(du)差，壁厚(hou)不均(jun)勻、硬度(du)(du)(du)(du)不均(jun)勻等(deng)因(yin)素，往往直(zhi)接影響(xiang)缸(gang)體內(nei)壁加(jia)(jia)(jia)工后的(de)(de)(de)直(zhi)線度(du)(du)(du)(du)，因(yin)此建議采(cai)用鏜(tang)(tang)削-滾壓(ya)、鏜(tang)(tang)削-珩(heng)磨工藝，如(ru)直(zhi)接珩(heng)磨，則必須首先提高(gao)管(guan)(guan)材坯料的(de)(de)(de)直(zhi)線度(du)(du)(du)(du)。

上述圖(tu)片僅(jin)供(gong)參(can)考，詳(xiang)細產品詳(xiang)情請(qing)咨詢我(wo)們(men)(men)，更多型號(hao)請(qing)訪問我(wo)們(men)(men)的網站或致電我(wo)們(men)(men)了解"。謝謝

　　在允許的(de)(de)情況(kuang)下，液(ye)壓(ya)(ya)缸(gang)(gang)的(de)(de)缸(gang)(gang)體(ti)壁(bi)厚(hou)安全系數盡量選大一(yi)些，使(shi)缸(gang)(gang)體(ti)厚(hou)壁(bi)增加(jia)，特別是高壓(ya)(ya)工況(kuang)下使(shi)用(yong)的(de)(de)油(you)(you)缸(gang)(gang)，以減小(xiao)油(you)(you)壓(ya)(ya)下的(de)(de)缸(gang)(gang)體(ti)變形(xing)(xing)，變形(xing)(xing)后的(de)(de)缸(gang)(gang)體(ti)也會(hui)引起液(ye)壓(ya)(ya)缸(gang)(gang)低速爬行(xing)。