
威(wei)海力建液壓設備廠
經營模式:生產加工
地址:山東省威(wei)海市羊(yang)亭孫家灘工(gong)業園
主營:液(ye)壓缸(gang),油缸(gang),液(ye)壓系統
業務熱線:
QQ:3049278720
活塞式液壓缸
單(dan)活塞(sai)桿液(ye)壓(ya)缸只(zhi)有一端有活塞(sai)桿。如圖所示是(shi)一種單(dan)活塞(sai)液(ye)壓(ya)缸。其(qi)兩端進出口油(you)(you)口A和B都可(ke)通(tong)壓(ya)力油(you)(you)或(huo)回油(you)(you),以實現雙向運(yun)動,故稱(cheng)為雙作用缸。
活(huo)塞僅能(neng)單向運動,其反(fan)方(fang)向運動需由外力來完成。但(dan)其行程(cheng)一(yi)般較活(huo)塞式液壓缸(gang)大。
活塞(sai)式液壓缸可(ke)分為單桿式和雙桿式兩種結構,其固(gu)定(ding)方(fang)式由缸體固(gu)定(ding)和活塞(sai)桿固(gu)定(ding)兩種。、





擺動式液壓缸
擺(bai)(bai)(bai)動(dong)(dong)式(shi)液壓(ya)缸(gang)(gang)是輸出扭矩并實現(xian)往復(fu)運(yun)(yun)動(dong)(dong)的執(zhi)行(xing)元(yuan)件,有單葉片(pian)(pian)、雙(shuang)葉片(pian)(pian)、螺(luo)(luo)旋擺(bai)(bai)(bai)動(dong)(dong)等(deng)幾種形(xing)式(shi)。葉片(pian)(pian)式(shi)式(shi):定子塊固定在缸(gang)(gang)體上,而(er)葉片(pian)(pian)和(he)轉(zhuan)子連接在一(yi)起。根據(ju)進(jin)油方向(xiang),葉片(pian)(pian)將帶動(dong)(dong)轉(zhuan)子作(zuo)往復(fu)擺(bai)(bai)(bai)動(dong)(dong)。螺(luo)(luo)旋擺(bai)(bai)(bai)動(dong)(dong)式(shi)又(you)分單螺(luo)(luo)旋擺(bai)(bai)(bai)動(dong)(dong)和(he)雙(shuang)螺(luo)(luo)旋兩(liang)種,現(xian)在雙(shuang)螺(luo)(luo)旋比(bi)較常用,靠兩(liang)個螺(luo)(luo)旋副降(jiang)液壓(ya)缸(gang)(gang)內活(huo)塞(sai)的直線運(yun)(yun)動(dong)(dong)轉(zhuan)變為直線運(yun)(yun)動(dong)(dong)與自轉(zhuan)運(yun)(yun)動(dong)(dong)的復(fu)he運(yun)(yun)動(dong)(dong),從而(er)實現(xian)擺(bai)(bai)(bai)動(dong)(dong)運(yun)(yun)動(dong)(dong)。
O形(xing)密(mi)封(feng)(feng)圈(quan)在低(di)壓下使用時,與(yu)U形(xing)密(mi)封(feng)(feng)圈(quan)比較(jiao)(jiao)(jiao),由(you)于面壓較(jiao)(jiao)(jiao)高(gao)、動靜(jing)摩(mo)擦阻力之差較(jiao)(jiao)(jiao)大(da),容(rong)易產生滑(hua)移或爬行;U型密(mi)封(feng)(feng)圈(quan)的面壓隨著壓力的提高(gao)而增大(da),雖(sui)然(ran)密(mi)封(feng)(feng)效果也(ye)相應提高(gao),但動靜(jing)摩(mo)擦阻力之差也(ye)變(bian)大(da),內壓增加,影響橡(xiang)膠(jiao)彈性,由(you)于唇緣的接觸阻力增大(da),密(mi)封(feng)(feng)圈(quan)將(jiang)會傾翻及唇緣伸長,也(ye)容(rong)易引起(qi)滑(hua)移或爬行,為防止(zhi)其傾翻可采用支承環保持(chi)其穩定。