
威海力(li)建液壓(ya)設備廠
經營(ying)模式:生產加工(gong)
地址:山東省威(wei)海市羊亭(ting)孫家灘工業園
主營:液壓缸,油缸,液壓系統(tong)
業務熱線:
QQ:3049278720
活塞式液壓缸
單活塞(sai)桿(gan)液(ye)壓缸只(zhi)有(you)一端(duan)有(you)活塞(sai)桿(gan)。如圖所示是一種單活塞(sai)液(ye)壓缸。其兩端(duan)進出口(kou)油口(kou)A和(he)B都可通(tong)壓力油或回油,以實現雙(shuang)向運動,故稱為雙(shuang)作用缸。
活塞(sai)僅能(neng)單向運(yun)動(dong)(dong),其反方向運(yun)動(dong)(dong)需由外力來完成。但其行程一般較活塞(sai)式液壓缸大。
活塞式液壓缸(gang)可分為單桿(gan)式和雙桿(gan)式兩種結構,其固(gu)定(ding)方式由缸(gang)體固(gu)定(ding)和活塞桿(gan)固(gu)定(ding)兩種。、





擺動式液壓缸
擺動(dong)(dong)(dong)(dong)式(shi)液(ye)壓(ya)(ya)缸是輸出扭(niu)矩并(bing)實現往復(fu)(fu)運(yun)(yun)動(dong)(dong)(dong)(dong)的(de)執行(xing)元(yuan)件(jian),有單葉(xie)片、雙(shuang)葉(xie)片、螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)(dong)等幾種形式(shi)。葉(xie)片式(shi)式(shi):定(ding)子(zi)塊固(gu)定(ding)在(zai)缸體上,而(er)葉(xie)片和(he)轉(zhuan)子(zi)連(lian)接在(zai)一起。根據進油方(fang)向(xiang),葉(xie)片將(jiang)帶動(dong)(dong)(dong)(dong)轉(zhuan)子(zi)作往復(fu)(fu)擺動(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)(dong)式(shi)又分單螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)(dong)和(he)雙(shuang)螺(luo)旋(xuan)(xuan)兩(liang)種,現在(zai)雙(shuang)螺(luo)旋(xuan)(xuan)比較常用,靠兩(liang)個(ge)螺(luo)旋(xuan)(xuan)副(fu)降液(ye)壓(ya)(ya)缸內活(huo)塞的(de)直線運(yun)(yun)動(dong)(dong)(dong)(dong)轉(zhuan)變為直線運(yun)(yun)動(dong)(dong)(dong)(dong)與自轉(zhuan)運(yun)(yun)動(dong)(dong)(dong)(dong)的(de)復(fu)(fu)he運(yun)(yun)動(dong)(dong)(dong)(dong),從而(er)實現擺動(dong)(dong)(dong)(dong)運(yun)(yun)動(dong)(dong)(dong)(dong)。
O形密(mi)封圈在低(di)壓(ya)下使用(yong)(yong)時,與U形密(mi)封圈比較,由(you)于(yu)面(mian)壓(ya)較高、動(dong)(dong)靜摩擦阻(zu)力(li)之(zhi)差(cha)較大(da),容易產生滑(hua)移或爬(pa)行;U型(xing)密(mi)封圈的面(mian)壓(ya)隨(sui)著壓(ya)力(li)的提(ti)高而增(zeng)大(da),雖然密(mi)封效果也相應提(ti)高,但動(dong)(dong)靜摩擦阻(zu)力(li)之(zhi)差(cha)也變大(da),內壓(ya)增(zeng)加,影響(xiang)橡膠彈性,由(you)于(yu)唇緣的接觸(chu)阻(zu)力(li)增(zeng)大(da),密(mi)封圈將(jiang)會傾(qing)翻及(ji)唇緣伸長,也容易引起滑(hua)移或爬(pa)行,為防止其傾(qing)翻可采用(yong)(yong)支承環保持其穩定。

李建波先生
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