CDCG250系列重載液壓缸廠家-力建液壓系統
威海力建(jian)液壓設備廠
經營模(mo)式：生產加工
地(di)址(zhi)：山東(dong)省威海市羊(yang)亭孫家灘(tan)工業(ye)園
主營：液(ye)壓缸,油缸,液(ye)壓系統
業務(wu)熱線：
QQ：3049278720
產品(pin)詳情 聯系(xi)方式
產品品牌：威海力建冶金
供貨總量：不限
價格說明：議定
包裝說明：不限
物流說明：貨運及物流
交貨說明：按訂單
有效期至：長期有效
伸縮式液壓缸
伸(shen)(shen)縮(suo)(suo)式(shi)液(ye)壓(ya)缸具有二級(ji)或(huo)多級(ji)活塞(sai)(sai)，伸(shen)(shen)縮(suo)(suo)式(shi)液(ye)壓(ya)缸中活塞(sai)(sai)伸(shen)(shen)出(chu)的順序(xu)式(shi)從(cong)大(da)到小，而(er)空載縮(suo)(suo)回的順序(xu)則一般(ban)是(shi)從(cong)小到大(da)。伸(shen)(shen)縮(suo)(suo)缸可實現較(jiao)(jiao)長的行程，而(er)縮(suo)(suo)回時長度較(jiao)(jiao)短，結構較(jiao)(jiao)為緊湊。此種(zhong)液(ye)壓(ya)缸常用(yong)于工程機(ji)械(xie)和(he)(he)農業機(ji)械(xie)上。有多個一次運(yun)動的活塞(sai)(sai)，各活塞(sai)(sai)逐次運(yun)動時，其(qi)輸(shu)出(chu)速(su)度和(he)(he)輸(shu)出(chu)力(li)(li)均是(shi)變化的。(威(wei)海(hai)力(li)(li)建冶金液(ye)壓(ya)設備廠(chang))
擺動式液壓缸
擺(bai)動(dong)(dong)(dong)(dong)(dong)(dong)式液壓缸(gang)是輸出扭矩并實(shi)(shi)現(xian)往復運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)的執行元件，有單(dan)葉(xie)片、雙(shuang)葉(xie)片、螺(luo)(luo)旋(xuan)(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)(dong)等幾(ji)種(zhong)形式。葉(xie)片式式：定子塊固定在缸(gang)體上，而葉(xie)片和轉(zhuan)子連接(jie)在一起。根據進(jin)油方向，葉(xie)片將帶動(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)子作(zuo)往復擺(bai)動(dong)(dong)(dong)(dong)(dong)(dong)。螺(luo)(luo)旋(xuan)(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)(dong)式又(you)分單(dan)螺(luo)(luo)旋(xuan)(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)(dong)和雙(shuang)螺(luo)(luo)旋(xuan)(xuan)兩種(zhong)，現(xian)在雙(shuang)螺(luo)(luo)旋(xuan)(xuan)比較常用，靠兩個(ge)螺(luo)(luo)旋(xuan)(xuan)副降液壓缸(gang)內活塞的直線運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)變為(wei)直線運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)與自轉(zhuan)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)的復he運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)，從(cong)而實(shi)(shi)現(xian)擺(bai)動(dong)(dong)(dong)(dong)(dong)(dong)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)。
因(yin)金屬的(de)接觸電(dian)位(wei)(wei)差造成(cheng)的(de)腐(fu)蝕，只發生(sheng)在(zai)活(huo)塞(sai)接觸到(dao)的(de)部位(wei)(wei)，而且腐(fu)蝕是成(cheng)點狀發生(sheng)的(de)。與上述相(xiang)同，中(zhong)間(jian)夾有(you)水分(fen)時，會(hui)促使腐(fu)蝕的(de)發展。與鑄件相(xiang)比(bi)，銅(tong)合(he)金的(de)接觸電(dian)位(wei)(wei)差要(yao)高，因(yin)此銅(tong)合(he)金的(de)腐(fu)蝕程度較嚴重。
c.因接觸電位差形(xing)成(cheng)的腐(fu)蝕(shi)。接觸電位差腐(fu)蝕(shi)，對于長時間運轉的液壓缸來說，不易發生(sheng)；對于長期停(ting)止不用的液壓缸來講是(shi)常見的故(gu)障。
