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柱塞式

（1）柱塞(sai)(sai)式液(ye)壓缸(gang)是一種單作用(yong)式液(ye)壓缸(gang)，靠(kao)液(ye)壓力只能實現一個方向的運動，柱塞(sai)(sai)回程要靠(kao)其它(ta)外力或(huo)柱塞(sai)(sai)的自重；

（2）柱塞只靠缸套支(zhi)承而不與缸套接觸，鄒城液壓缸銷售，這樣缸套極易加(jia)工(gong)，CDCG350系列(lie)重載液壓缸銷售，故適于(yu)做長行程液壓缸；

（3）工作時(shi)柱(zhu)塞(sai)總(zong)受壓(ya)，7-14MPa CJT拉桿(gan)式液壓(ya)缸(gang)銷售，因(yin)而它必須有足夠的剛度；

（4）柱塞重(zhong)量往往較大，水平放置時 容易(yi)因自(zi)重(zhong)而下垂，造成密封件(jian)和導(dao)向單邊(bian)磨損，故其(qi)垂直使用更有利。

液壓缸的分類

液壓(ya)缸的(de)結構形(xing)式(shi)(shi)(shi)(shi)多(duo)種(zhong)多(duo)樣，其分(fen)類(lei)方法(fa)也(ye)有多(duo)種(zhong)：按(an)運動(dong)方式(shi)(shi)(shi)(shi)可(ke)分(fen)為直(zhi)線往復(fu)運動(dong)式(shi)(shi)(shi)(shi)和回(hui)轉擺動(dong)式(shi)(shi)(shi)(shi)；按(an)受液壓(ya)力作(zuo)用(yong)情況可(ke)分(fen)為單作(zuo)用(yong)式(shi)(shi)(shi)(shi)、雙作(zuo)用(yong)式(shi)(shi)(shi)(shi)；按(an)結構形(xing)式(shi)(shi)(shi)(shi)可(ke)分(fen)為活塞式(shi)(shi)(shi)(shi)、柱塞式(shi)(shi)(shi)(shi)、多(duo)級伸縮套(tao)筒式(shi)(shi)(shi)(shi)，齒(chi)輪齒(chi)條式(shi)(shi)(shi)(shi)等(deng)；按(an)安(an)裝形(xing)式(shi)(shi)(shi)(shi)可(ke)分(fen)為拉桿、耳環(huan)、底腳、鉸軸(zhou)等(deng)；按(an)壓(ya)力等(deng)級可(ke)分(fen)為16Mpa、25Mpa、31.5Mpa等(deng)。（威海力建冶(ye)金液壓(ya)設備廠）

擺動式液壓缸

擺動(dong)(dong)(dong)(dong)(dong)式(shi)液壓缸(gang)是輸出扭矩并實(shi)現(xian)往復運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的執行元件，有單(dan)葉片(pian)、雙(shuang)葉片(pian)、螺(luo)旋擺動(dong)(dong)(dong)(dong)(dong)等(deng)幾種形式(shi)。葉片(pian)式(shi)式(shi)：定(ding)子塊固定(ding)在(zai)缸(gang)體上，而葉片(pian)和(he)轉子連接在(zai)一起(qi)。根據(ju)進(jin)油方向，葉片(pian)將帶動(dong)(dong)(dong)(dong)(dong)轉子作往復擺動(dong)(dong)(dong)(dong)(dong)。螺(luo)旋擺動(dong)(dong)(dong)(dong)(dong)式(shi)又分單(dan)螺(luo)旋擺動(dong)(dong)(dong)(dong)(dong)和(he)雙(shuang)螺(luo)旋兩種，現(xian)在(zai)雙(shuang)螺(luo)旋比(bi)較常用，靠(kao)兩個螺(luo)旋副(fu)降液壓缸(gang)內(nei)活塞的直線運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)轉變為直線運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)與自轉運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的復he運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)，從而實(shi)現(xian)擺動(dong)(dong)(dong)(dong)(dong)運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)。