
威海力建液壓設(she)備廠
經營模式:生產(chan)加工
地址:山東(dong)省威海市羊亭孫(sun)家灘工業園
主營:液壓(ya)缸,油(you)缸,液壓(ya)系統
業務熱線:
QQ:3049278720
伸縮式液壓缸
伸(shen)(shen)縮(suo)式(shi)液(ye)(ye)壓(ya)(ya)缸具有二級(ji)或多級(ji)活(huo)塞(sai)(sai),伸(shen)(shen)縮(suo)式(shi)液(ye)(ye)壓(ya)(ya)缸中活(huo)塞(sai)(sai)伸(shen)(shen)出(chu)的順序式(shi)從大到小(xiao),而(er)空載縮(suo)回(hui)的順序則一般是(shi)從小(xiao)到大。伸(shen)(shen)縮(suo)缸可實現較(jiao)長(chang)的行程,而(er)縮(suo)回(hui)時長(chang)度(du)較(jiao)短,結構較(jiao)為緊湊(cou)。此種(zhong)液(ye)(ye)壓(ya)(ya)缸常用于(yu)工(gong)程機(ji)械和(he)農業(ye)機(ji)械上。有多個一次運(yun)動(dong)的活(huo)塞(sai)(sai),各(ge)活(huo)塞(sai)(sai)逐次運(yun)動(dong)時,其輸出(chu)速度(du)和(he)輸出(chu)力均(jun)是(shi)變化的。(威海力建冶金(jin)液(ye)(ye)壓(ya)(ya)設備廠)





擺動式液壓缸
擺(bai)動(dong)(dong)(dong)(dong)式液壓(ya)缸是輸(shu)出(chu)扭矩(ju)并實現往復運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)的執行元件,有單葉(xie)(xie)(xie)(xie)片(pian)、雙(shuang)葉(xie)(xie)(xie)(xie)片(pian)、螺旋(xuan)擺(bai)動(dong)(dong)(dong)(dong)等幾(ji)種形式。葉(xie)(xie)(xie)(xie)片(pian)式式:定(ding)子塊固定(ding)在缸體上,而(er)葉(xie)(xie)(xie)(xie)片(pian)和轉子連接在一起。根據(ju)進(jin)油方向,葉(xie)(xie)(xie)(xie)片(pian)將(jiang)帶動(dong)(dong)(dong)(dong)轉子作往復擺(bai)動(dong)(dong)(dong)(dong)。螺旋(xuan)擺(bai)動(dong)(dong)(dong)(dong)式又分(fen)單螺旋(xuan)擺(bai)動(dong)(dong)(dong)(dong)和雙(shuang)螺旋(xuan)兩種,現在雙(shuang)螺旋(xuan)比(bi)較常用,靠(kao)兩個螺旋(xuan)副降液壓(ya)缸內(nei)活塞的直(zhi)線運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)轉變為直(zhi)線運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)與自轉運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)的復he運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong),從而(er)實現擺(bai)動(dong)(dong)(dong)(dong)運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)。
1、液(ye)壓缸內導(dao)(dao)向(xiang)元件(jian)摩擦力不均(jun)勻產生的(de)低速爬行,建議(yi)優(you)先采用金屬作為導(dao)(dao)向(xiang)支撐(cheng)(cheng),如(ru)(ru)QT500-7、ZQAL9-4等,如(ru)(ru)采用非金屬支撐(cheng)(cheng)環(huan),建議(yi)選(xuan)用在油液(ye)中尺(chi)寸(cun)穩(wen)定(ding)性好的(de)非金屬支撐(cheng)(cheng)環(huan),特(te)別(bie)是熱(re)膨脹(zhang)系數應小(xiao),另外對(dui)支撐(cheng)(cheng)環(huan)的(de)厚度(du),必(bi)須嚴格控制尺(chi)寸(cun)公(gong)差和(he)厚度(du)的(de)均(jun)勻性。
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2、對(dui)于密(mi)封件材質問題(ti)引起的液(ye)壓缸(gang)低速爬行,建議在工況允許的條件下,優(you)先采用以(yi)聚(ju)四氟(fu)乙烯作為(wei)密(mi)封的組合(he)密(mi)封圈,如常用的格萊圈、斯特封等等;如選(xuan)唇口(kou)密(mi)封,建議材料(liao)優(you)選(xuan)丁晴橡(xiang)膠或類(lei)似材料(liao)的密(mi)封件,其跟隨(sui)性較好。