亚洲欧洲精品一区二区三区游乐网,国产精品高潮呻吟AV无码男同,向日葵APP下载免费视频大全,日本三级免费播放网站,日韩精品国产另类专区

伸縮式液壓缸

伸縮(suo)(suo)式(shi)液壓(ya)缸(gang)具有二級或多級活(huo)(huo)塞(sai)(sai)，伸縮(suo)(suo)式(shi)液壓(ya)缸(gang)中活(huo)(huo)塞(sai)(sai)伸出的(de)(de)順序(xu)式(shi)從大到小，而(er)空載縮(suo)(suo)回的(de)(de)順序(xu)則一般是(shi)(shi)從小到大。伸縮(suo)(suo)缸(gang)可實現較長的(de)(de)行(xing)程，而(er)縮(suo)(suo)回時(shi)長度較短，結(jie)構(gou)較為(wei)緊湊。此種(zhong)液壓(ya)缸(gang)常用于(yu)工程機械和(he)農業機械上。有多個(ge)一次(ci)運(yun)動的(de)(de)活(huo)(huo)塞(sai)(sai)，各活(huo)(huo)塞(sai)(sai)逐次(ci)運(yun)動時(shi)，其輸(shu)出速度和(he)輸(shu)出力(li)均是(shi)(shi)變化的(de)(de)。(威海力(li)建冶金液壓(ya)設(she)備廠)

液壓缸(gang)結構基本上可以(yi)分(fen)(fen)為缸(gang)筒(tong)(tong)和缸(gang)蓋(gai)、活塞和活塞桿、密(mi)封裝(zhuang)置、緩(huan)沖裝(zhuang)置和排(pai)氣裝(zhuang)置五個部分(fen)(fen)。今天(tian)威海力建小編(bian)著重(zhong)帶著大家了解一下(xia)缸(gang)筒(tong)(tong)和缸(gang)蓋(gai)。

 缸筒和缸蓋

一般來說，缸(gang)(gang)筒(tong)(tong)(tong)和(he)缸(gang)(gang)蓋的(de)結(jie)構(gou)(gou)形(xing)式(shi)(shi)(shi)和(he)其使用(yong)的(de)材料有關。工(gong)作壓力p＜10MPa時(shi)，使用(yong)鑄(zhu)(zhu)鐵；p＜20MPa時(shi)，使用(yong)無縫鋼(gang)(gang)管(guan)(guan)；p＞20MPa時(shi)，使用(yong)鑄(zhu)(zhu)鋼(gang)(gang)或(huo)鍛鋼(gang)(gang)。法蘭連接式(shi)(shi)(shi)，結(jie)構(gou)(gou)簡(jian)(jian)單(dan)(dan)，容(rong)(rong)(rong)易(yi)加(jia)工(gong)，也容(rong)(rong)(rong)易(yi)裝(zhuang)(zhuang)拆，但外形(xing)尺(chi)(chi)寸(cun)和(he)重(zhong)(zhong)量(liang)都較(jiao)(jiao)大，常(chang)(chang)用(yong)于(yu)(yu)鑄(zhu)(zhu)鐵制(zhi)(zhi)的(de)缸(gang)(gang)筒(tong)(tong)(tong)上。半環(huan)連接式(shi)(shi)(shi)，它(ta)(ta)的(de)缸(gang)(gang)筒(tong)(tong)(tong)壁部(bu)因(yin)開了(le)環(huan)形(xing)槽而削弱了(le)強度(du)，為此(ci)有時(shi)要加(jia)厚缸(gang)(gang)壁，它(ta)(ta)容(rong)(rong)(rong)易(yi)加(jia)工(gong)和(he)裝(zhuang)(zhuang)拆，重(zhong)(zhong)量(liang)較(jiao)(jiao)輕(qing)，常(chang)(chang)用(yong)于(yu)(yu)無縫鋼(gang)(gang)管(guan)(guan)或(huo)鍛鋼(gang)(gang)制(zhi)(zhi)的(de)缸(gang)(gang)筒(tong)(tong)(tong)上。螺紋(wen)連接式(shi)(shi)(shi)，它(ta)(ta)的(de)缸(gang)(gang)筒(tong)(tong)(tong)端(duan)部(bu)結(jie)構(gou)(gou)復雜，外徑(jing)加(jia)工(gong)時(shi)要求保證內外徑(jing)同心，裝(zhuang)(zhuang)拆要使用(yong)工(gong)具，它(ta)(ta)的(de)外形(xing)尺(chi)(chi)寸(cun)和(he)重(zhong)(zhong)量(liang)都較(jiao)(jiao)小(xiao)，常(chang)(chang)用(yong)于(yu)(yu)無縫鋼(gang)(gang)管(guan)(guan)或(huo)鑄(zhu)(zhu)鋼(gang)(gang)制(zhi)(zhi)的(de)缸(gang)(gang)筒(tong)(tong)(tong)上。拉桿連接式(shi)(shi)(shi)，結(jie)構(gou)(gou)的(de)通用(yong)性大，容(rong)(rong)(rong)易(yi)加(jia)工(gong)和(he)裝(zhuang)(zhuang)拆，但外形(xing)尺(chi)(chi)寸(cun)較(jiao)(jiao)大，且(qie)較(jiao)(jiao)重(zhong)(zhong)。焊(han)接連接式(shi)(shi)(shi)，結(jie)構(gou)(gou)簡(jian)(jian)單(dan)(dan)，尺(chi)(chi)寸(cun)小(xiao)，但缸(gang)(gang)底處內徑(jing)不易(yi)加(jia)工(gong)，且(qie)可能引起變形(xing)。

3、叉車(che)叉架下降速度(du)太快

故障檢查：節流(liu)閥(fa)卡在(zai)打開位(wei)置或裝反

故(gu)障排除：重裝節流閥

4、叉車起升缸(gang)自由下滑量太(tai)大(da)(da)或(huo)傾斜缸(gang)自傾角太(tai)大(da)(da)

故障檢查：換(huan)向閥(fa)閥(fa)桿內泄漏(lou)太大，傾斜缸活(huo)塞密封圈失效內漏(lou)

故障(zhang)排除：更(geng)(geng)換閥(fa)桿或(huo)更(geng)(geng)換密封(feng)圈

5、液壓缸活塞桿帶(dai)油(you)

故障檢查(cha)：油封(feng)是否(fou)損壞(huai)

故障排除：更換油封（威海力建冶金(jin)液壓設備廠推薦）