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叉車(che)起(qi)(qi)升缸(gang)活塞桿動作(zuo)慢(man)、起(qi)(qi)升時門架有間(jian)斷(duan)或沖擊

故障檢(jian)查1：系統油量不足

故障排(pai)除：加油至油標(biao)線

故障檢查2：密封不良(liang)、油(you)(you)管連(lian)接不緊造成漏油(you)(you)、油(you)(you)管破裂

故障排(pai)除：加密封，擰緊管接頭，工程用液壓缸定制(zhi)，更(geng)換油管

故障檢查3：油(you)泵故障致(zhi)供油(you)不(bu)足

故(gu)障排除：修理或更換油泵

故障檢查4：安全閥調整不當或損壞

故障排(pai)除：調整(zheng)或修理安全閥

故障檢查5：液壓過濾(lv)器(qi)堵(du)塞

故障排除：清洗(xi)或(huo)更換(huan)液壓油濾清器

故障檢查6：液壓系統中有空(kong)氣(qi)

故障排(pai)除：將空氣(qi)排(pai)除

活塞(sai)式(shi)液壓缸根(gen)據(ju)其使用要求不同(tong)可(ke)分(fen)為雙(shuang)桿式(shi)和(he)單桿式(shi)兩(liang)種。

(1)雙(shuang)(shuang)桿(gan)式(shi)(shi)活(huo)塞(sai)缸。活(huo)塞(sai)兩(liang)端都有一根直徑相等(deng)的(de)活(huo)塞(sai)桿(gan)伸(shen)出的(de)液壓缸稱為雙(shuang)(shuang)桿(gan)式(shi)(shi)活(huo)塞(sai)缸，它一般(ban)由缸體、缸蓋、活(huo)塞(sai)、活(huo)塞(sai)桿(gan)和(he)密封件(jian)等(deng)零件(jian)構成。根據安裝(zhuang)方式(shi)(shi)不同可分為缸筒固定(ding)式(shi)(shi)和(he)活(huo)塞(sai)桿(gan)固定(ding)式(shi)(shi)兩(liang)種。

雙桿活(huo)塞(sai)(sai)缸(gang)(gang)(gang)(gang)。它(ta)的進(jin)、出(chu)口(kou)布置在缸(gang)(gang)(gang)(gang)筒兩端(duan)，活(huo)塞(sai)(sai)通過(guo)活(huo)塞(sai)(sai)桿帶動(dong)(dong)工(gong)(gong)(gong)作臺移動(dong)(dong)，當活(huo)塞(sai)(sai)的有(you)效(xiao)行程(cheng)(cheng)為l時，整個工(gong)(gong)(gong)作臺的運動(dong)(dong)范圍為3l，南黃鎮(zhen)工(gong)(gong)(gong)程(cheng)(cheng)用(yong)液(ye)壓(ya)缸(gang)(gang)(gang)(gang)，所以機(ji)床占地面積大，一般適用(yong)于小型機(ji)床，工(gong)(gong)(gong)程(cheng)(cheng)用(yong)液(ye)壓(ya)缸(gang)(gang)(gang)(gang)批發，當工(gong)(gong)(gong)作臺行程(cheng)(cheng)要求較長(chang)時，活(huo)塞(sai)(sai)桿固(gu)定(ding)的形(xing)式，這(zhe)時，缸(gang)(gang)(gang)(gang)體(ti)與工(gong)(gong)(gong)作臺相連(lian)，工(gong)(gong)(gong)程(cheng)(cheng)用(yong)液(ye)壓(ya)缸(gang)(gang)(gang)(gang)加工(gong)(gong)(gong)，活(huo)塞(sai)(sai)桿通過(guo)支(zhi)架固(gu)定(ding)在機(ji)床上，動(dong)(dong)力(li)由(you)缸(gang)(gang)(gang)(gang)體(ti)傳(chuan)出(chu)。這(zhe)種(zhong)安裝形(xing)式中，工(gong)(gong)(gong)作臺的移動(dong)(dong)范圍只等于液(ye)壓(ya)缸(gang)(gang)(gang)(gang)有(you)效(xiao)行程(cheng)(cheng)l的兩倍(2l)，因此(ci)占地面積小。進(jin)出(chu)油口(kou)可以設置在固(gu)定(ding)不動(dong)(dong)的空心的活(huo)塞(sai)(sai)桿的兩端(duan)，但必須(xu)使用(yong)軟管連(lian)接。

液壓缸的分類

液壓(ya)缸的結構形(xing)式(shi)(shi)(shi)多種(zhong)多樣，其分(fen)(fen)類(lei)方法也(ye)有(you)多種(zhong)：按運動方式(shi)(shi)(shi)可分(fen)(fen)為直線(xian)往復運動式(shi)(shi)(shi)和(he)回轉擺動式(shi)(shi)(shi)；按受液壓(ya)力作(zuo)(zuo)用情(qing)況可分(fen)(fen)為單(dan)作(zuo)(zuo)用式(shi)(shi)(shi)、雙作(zuo)(zuo)用式(shi)(shi)(shi)；按結構形(xing)式(shi)(shi)(shi)可分(fen)(fen)為活塞(sai)式(shi)(shi)(shi)、柱(zhu)塞(sai)式(shi)(shi)(shi)、多級(ji)(ji)伸縮套筒式(shi)(shi)(shi)，齒輪(lun)齒條式(shi)(shi)(shi)等(deng)(deng)；按安裝形(xing)式(shi)(shi)(shi)可分(fen)(fen)為拉桿(gan)、耳環、底腳、鉸軸等(deng)(deng)；按壓(ya)力等(deng)(deng)級(ji)(ji)可分(fen)(fen)為16Mpa、25Mpa、31.5Mpa等(deng)(deng)。（威海(hai)力建冶金液壓(ya)設備廠）