
威海力建液壓設(she)備廠(chang)
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):液壓(ya)缸,油缸,液壓(ya)系統
業務熱線:
QQ:3049278720
擺動式液壓缸
擺動(dong)式(shi)(shi)液(ye)壓缸是(shi)輸出(chu)扭矩并實現往復(fu)運(yun)(yun)動(dong)的(de)執行元件,有單(dan)葉(xie)(xie)片(pian)、雙(shuang)葉(xie)(xie)片(pian)、螺(luo)(luo)旋擺動(dong)等幾種形式(shi)(shi)。葉(xie)(xie)片(pian)式(shi)(shi)式(shi)(shi):定子(zi)塊(kuai)固定在缸體上(shang),而葉(xie)(xie)片(pian)和轉(zhuan)(zhuan)子(zi)連接在一起。根據進(jin)油方向,葉(xie)(xie)片(pian)將帶動(dong)轉(zhuan)(zhuan)子(zi)作往復(fu)擺動(dong)。螺(luo)(luo)旋擺動(dong)式(shi)(shi)又(you)分單(dan)螺(luo)(luo)旋擺動(dong)和雙(shuang)螺(luo)(luo)旋兩(liang)種,現在雙(shuang)螺(luo)(luo)旋比較常用,靠兩(liang)個螺(luo)(luo)旋副(fu)降液(ye)壓缸內(nei)活塞的(de)直線(xian)運(yun)(yun)動(dong)轉(zhuan)(zhuan)變為(wei)直線(xian)運(yun)(yun)動(dong)與自轉(zhuan)(zhuan)運(yun)(yun)動(dong)的(de)復(fu)he運(yun)(yun)動(dong),從(cong)而實現擺動(dong)運(yun)(yun)動(dong)。





液壓(ya)缸(gang)結構基(ji)本上可(ke)以分為缸(gang)筒(tong)和(he)(he)缸(gang)蓋(gai)、活塞和(he)(he)活塞桿、密封裝(zhuang)置、緩沖裝(zhuang)置和(he)(he)排氣裝(zhuang)置五個部分。今天威海力建小編著重(zhong)帶著大家了解一下缸(gang)筒(tong)和(he)(he)缸(gang)蓋(gai)。
缸筒和(he)缸蓋(gai)
一般(ban)來說,缸(gang)(gang)(gang)筒(tong)(tong)(tong)和(he)缸(gang)(gang)(gang)蓋的(de)(de)(de)(de)(de)結(jie)構(gou)形(xing)式(shi)(shi)和(he)其(qi)使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)材料有關。工(gong)(gong)作壓力p<10MPa時,使用(yong)(yong)(yong)鑄鐵;p<20MPa時,使用(yong)(yong)(yong)無縫鋼(gang)(gang)(gang)管(guan);p>20MPa時,使用(yong)(yong)(yong)鑄鋼(gang)(gang)(gang)或(huo)鍛鋼(gang)(gang)(gang)。法蘭連(lian)接(jie)式(shi)(shi),結(jie)構(gou)簡單(dan),容(rong)易加工(gong)(gong),也容(rong)易裝(zhuang)拆(chai)(chai),但外(wai)形(xing)尺(chi)寸和(he)重量都較(jiao)(jiao)大(da),常(chang)用(yong)(yong)(yong)于鑄鐵制(zhi)的(de)(de)(de)(de)(de)缸(gang)(gang)(gang)筒(tong)(tong)(tong)上。半(ban)環連(lian)接(jie)式(shi)(shi),它(ta)的(de)(de)(de)(de)(de)缸(gang)(gang)(gang)筒(tong)(tong)(tong)壁部因開了環形(xing)槽而(er)削弱了強度(du),為此有時要加厚缸(gang)(gang)(gang)壁,它(ta)容(rong)易加工(gong)(gong)和(he)裝(zhuang)拆(chai)(chai),重量較(jiao)(jiao)輕,常(chang)用(yong)(yong)(yong)于無縫鋼(gang)(gang)(gang)管(guan)或(huo)鍛鋼(gang)(gang)(gang)制(zhi)的(de)(de)(de)(de)(de)缸(gang)(gang)(gang)筒(tong)(tong)(tong)上。螺(luo)紋連(lian)接(jie)式(shi)(shi),它(ta)的(de)(de)(de)(de)(de)缸(gang)(gang)(gang)筒(tong)(tong)(tong)端部結(jie)構(gou)復(fu)雜,外(wai)徑(jing)加工(gong)(gong)時要求保證內外(wai)徑(jing)同(tong)心,裝(zhuang)拆(chai)(chai)要使用(yong)(yong)(yong)工(gong)(gong)具,它(ta)的(de)(de)(de)(de)(de)外(wai)形(xing)尺(chi)寸和(he)重量都較(jiao)(jiao)小,常(chang)用(yong)(yong)(yong)于無縫鋼(gang)(gang)(gang)管(guan)或(huo)鑄鋼(gang)(gang)(gang)制(zhi)的(de)(de)(de)(de)(de)缸(gang)(gang)(gang)筒(tong)(tong)(tong)上。拉(la)桿連(lian)接(jie)式(shi)(shi),結(jie)構(gou)的(de)(de)(de)(de)(de)通用(yong)(yong)(yong)性大(da),容(rong)易加工(gong)(gong)和(he)裝(zhuang)拆(chai)(chai),但外(wai)形(xing)尺(chi)寸較(jiao)(jiao)大(da),且(qie)較(jiao)(jiao)重。焊接(jie)連(lian)接(jie)式(shi)(shi),結(jie)構(gou)簡單(dan),尺(chi)寸小,但缸(gang)(gang)(gang)底處內徑(jing)不易加工(gong)(gong),且(qie)可能引(yin)起變形(xing)。
、液壓(ya)缸低速爬行的(de)現象
液(ye)壓(ya)(ya)缸(gang)的(de)(de)活塞桿在油壓(ya)(ya)的(de)(de)作用(yong)下伸(shen)出(chu)(chu)或縮回時,經常出(chu)(chu)現(xian)(xian)速(su)(su)度不(bu)均勻現(xian)(xian)象(xiang)(xiang),并有時伴有振(zhen)動(dong)(dong)和異響,從而引(yin)起(qi)整個液(ye)壓(ya)(ya)系統的(de)(de)振(zhen)動(dong)(dong),并帶動(dong)(dong)主機其(qi)它部件振(zhen)動(dong)(dong),在主機調試過(guo)程中經常出(chu)(chu)現(xian)(xian),有時速(su)(su)度快了(le),這(zhe)種(zhong)現(xian)(xian)象(xiang)(xiang)會減輕(qing)。除因液(ye)壓(ya)(ya)系統管(guan)路引(yin)起(qi)這(zhe)種(zhong)現(xian)(xian)象(xiang)(xiang)以(yi)外,液(ye)壓(ya)(ya)缸(gang)自(zi)身產生的(de)(de)振(zhen)動(dong)(dong)也經常引(yin)發此類現(xian)(xian)象(xiang)(xiang)。
原因分析
液(ye)(ye)壓(ya)缸有桿腔和無桿腔存有氣(qi)(qi)體(ti)(ti)而(er)產生的低(di)速爬行,由于氣(qi)(qi)體(ti)(ti)混在(zai)液(ye)(ye)壓(ya)油(you)中,在(zai)壓(ya)力的作(zuo)用下,容器內體(ti)(ti)積(ji)變(bian)化,在(zai)高壓(ya)作(zuo)用下甚至發生氣(qi)(qi)體(ti)(ti)瞬(shun)間,從而(er)引起液(ye)(ye)壓(ya)缸的速度不穩定。