
威海力建(jian)液壓設備(bei)廠
經(jing)營(ying)模式:生產(chan)加工
地址:山東省(sheng)威海(hai)市羊亭孫(sun)家灘工業園
主營:液壓缸(gang),油缸(gang),液壓系統
業務(wu)熱(re)線:
QQ:3049278720
活塞式液壓缸
單活塞桿液(ye)壓缸(gang)只有一(yi)(yi)端有活塞桿。如圖(tu)所示是一(yi)(yi)種單活塞液(ye)壓缸(gang)。其兩端進出口油口A和B都可通壓力油或回(hui)油,以實現(xian)雙向運動(dong),故(gu)稱(cheng)為(wei)雙作用缸(gang)。
活(huo)(huo)塞僅能(neng)單向(xiang)運(yun)動(dong)(dong),其反方(fang)向(xiang)運(yun)動(dong)(dong)需由(you)外(wai)力來完成。但其行程一般較活(huo)(huo)塞式液壓缸大。
活塞式(shi)液壓(ya)缸可(ke)分為單桿(gan)式(shi)和雙桿(gan)式(shi)兩(liang)種(zhong)(zhong)結構,其固(gu)定(ding)方式(shi)由缸體固(gu)定(ding)和活塞桿(gan)固(gu)定(ding)兩(liang)種(zhong)(zhong)。、





擺動式液壓缸
擺(bai)(bai)動(dong)(dong)式(shi)液壓缸(gang)是輸出扭矩并實現(xian)往復(fu)運(yun)(yun)動(dong)(dong)的執行元件,有單(dan)葉片(pian)(pian)、雙(shuang)葉片(pian)(pian)、螺(luo)旋(xuan)(xuan)擺(bai)(bai)動(dong)(dong)等幾種形式(shi)。葉片(pian)(pian)式(shi)式(shi):定(ding)子塊固定(ding)在(zai)(zai)缸(gang)體上,而葉片(pian)(pian)和轉子連接在(zai)(zai)一(yi)起。根據(ju)進(jin)油方向,葉片(pian)(pian)將帶(dai)動(dong)(dong)轉子作(zuo)往復(fu)擺(bai)(bai)動(dong)(dong)。螺(luo)旋(xuan)(xuan)擺(bai)(bai)動(dong)(dong)式(shi)又分單(dan)螺(luo)旋(xuan)(xuan)擺(bai)(bai)動(dong)(dong)和雙(shuang)螺(luo)旋(xuan)(xuan)兩(liang)種,現(xian)在(zai)(zai)雙(shuang)螺(luo)旋(xuan)(xuan)比(bi)較常用,靠兩(liang)個螺(luo)旋(xuan)(xuan)副降液壓缸(gang)內活(huo)塞的直線(xian)運(yun)(yun)動(dong)(dong)轉變為直線(xian)運(yun)(yun)動(dong)(dong)與自轉運(yun)(yun)動(dong)(dong)的復(fu)he運(yun)(yun)動(dong)(dong),從而實現(xian)擺(bai)(bai)動(dong)(dong)運(yun)(yun)動(dong)(dong)。
O形密封(feng)圈在低壓下使(shi)用時(shi),與(yu)U形密封(feng)圈比較(jiao)(jiao),由于(yu)面(mian)壓較(jiao)(jiao)高、動靜摩擦(ca)阻力之差較(jiao)(jiao)大(da),容易產(chan)生滑移或爬(pa)行(xing);U型密封(feng)圈的面(mian)壓隨著壓力的提(ti)高而增大(da),雖然密封(feng)效果也相應提(ti)高,但動靜摩擦(ca)阻力之差也變大(da),內壓增加(jia),影響橡膠彈性(xing),由于(yu)唇(chun)緣的接觸阻力增大(da),密封(feng)圈將會傾翻及(ji)唇(chun)緣伸(shen)長,也容易引起滑移或爬(pa)行(xing),為防止(zhi)其(qi)傾翻可(ke)采(cai)用支承環保持其(qi)穩定。