
威(wei)海力建液壓(ya)設備廠
經(jing)營模式:生產加工
地址(zhi):山東省威海市羊亭孫家灘工(gong)業園
主營(ying):液(ye)壓缸,油缸,液(ye)壓系(xi)統
業務(wu)熱線:
QQ:3049278720
活塞式液壓缸
單活(huo)塞桿液壓(ya)缸(gang)只(zhi)有(you)一端(duan)有(you)活(huo)塞桿。如圖所示是一種單活(huo)塞液壓(ya)缸(gang)。其兩端(duan)進出口(kou)油口(kou)A和B都可通壓(ya)力油或回油,以實現雙(shuang)(shuang)向運動,故稱為雙(shuang)(shuang)作用缸(gang)。
活塞僅能(neng)單向(xiang)運動(dong),其(qi)反方向(xiang)運動(dong)需由外力(li)來完成。但其(qi)行(xing)程一般較(jiao)活塞式液(ye)壓缸大。
活(huo)塞式(shi)液壓缸可分(fen)為單(dan)桿(gan)式(shi)和(he)雙桿(gan)式(shi)兩(liang)種結構,其(qi)固(gu)定(ding)方式(shi)由缸體固(gu)定(ding)和(he)活(huo)塞桿(gan)固(gu)定(ding)兩(liang)種。、





擺動式液壓缸
擺(bai)動(dong)(dong)(dong)(dong)(dong)式(shi)液壓缸是輸(shu)出扭矩并實現往復運動(dong)(dong)(dong)(dong)(dong)的執(zhi)行(xing)元(yuan)件,有單(dan)葉片、雙(shuang)葉片、螺(luo)旋(xuan)(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)等幾種(zhong)形式(shi)。葉片式(shi)式(shi):定(ding)子塊固定(ding)在(zai)(zai)缸體上,而葉片和轉子連接在(zai)(zai)一(yi)起。根(gen)據進(jin)油方向,葉片將帶動(dong)(dong)(dong)(dong)(dong)轉子作往復擺(bai)動(dong)(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)式(shi)又分單(dan)螺(luo)旋(xuan)(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)和雙(shuang)螺(luo)旋(xuan)(xuan)兩(liang)種(zhong),現在(zai)(zai)雙(shuang)螺(luo)旋(xuan)(xuan)比較常(chang)用,靠兩(liang)個(ge)螺(luo)旋(xuan)(xuan)副降液壓缸內活塞(sai)的直(zhi)線(xian)運動(dong)(dong)(dong)(dong)(dong)轉變為直(zhi)線(xian)運動(dong)(dong)(dong)(dong)(dong)與(yu)自轉運動(dong)(dong)(dong)(dong)(dong)的復he運動(dong)(dong)(dong)(dong)(dong),從而實現擺(bai)動(dong)(dong)(dong)(dong)(dong)運動(dong)(dong)(dong)(dong)(dong)。
O形(xing)密(mi)封(feng)(feng)(feng)圈(quan)在低壓下使用時,與U形(xing)密(mi)封(feng)(feng)(feng)圈(quan)比較(jiao),由于(yu)面壓較(jiao)高(gao)、動(dong)靜(jing)摩擦阻力之(zhi)差(cha)較(jiao)大(da),容易產生滑移(yi)或爬(pa)行;U型(xing)密(mi)封(feng)(feng)(feng)圈(quan)的(de)(de)面壓隨著(zhu)壓力的(de)(de)提(ti)高(gao)而增(zeng)(zeng)大(da),雖然(ran)密(mi)封(feng)(feng)(feng)效果也(ye)相應提(ti)高(gao),但(dan)動(dong)靜(jing)摩擦阻力之(zhi)差(cha)也(ye)變(bian)大(da),內壓增(zeng)(zeng)加,影響橡膠彈(dan)性,由于(yu)唇緣的(de)(de)接觸(chu)阻力增(zeng)(zeng)大(da),密(mi)封(feng)(feng)(feng)圈(quan)將會傾(qing)翻(fan)及唇緣伸長,也(ye)容易引起滑移(yi)或爬(pa)行,為防(fang)止其傾(qing)翻(fan)可采用支承環保持其穩定(ding)。