
威海力(li)建液壓(ya)設備(bei)廠
經營模(mo)式:生產加(jia)工
地址(zhi):山(shan)東省威海(hai)市羊亭(ting)孫家灘工業園
主營:液(ye)壓(ya)缸,油缸,液(ye)壓(ya)系統
業務熱線:
QQ:3049278720
擺動式液壓缸
擺(bai)動(dong)(dong)(dong)式(shi)(shi)(shi)液(ye)壓(ya)缸(gang)(gang)是輸出扭矩并實現往復運(yun)(yun)動(dong)(dong)(dong)的(de)執行元(yuan)件,有單(dan)葉(xie)片、雙葉(xie)片、螺(luo)旋(xuan)擺(bai)動(dong)(dong)(dong)等(deng)幾種形式(shi)(shi)(shi)。葉(xie)片式(shi)(shi)(shi)式(shi)(shi)(shi):定子(zi)塊固(gu)定在缸(gang)(gang)體(ti)上,而葉(xie)片和(he)轉(zhuan)子(zi)連接在一起(qi)。根據進油方(fang)向(xiang),葉(xie)片將帶(dai)動(dong)(dong)(dong)轉(zhuan)子(zi)作往復擺(bai)動(dong)(dong)(dong)。螺(luo)旋(xuan)擺(bai)動(dong)(dong)(dong)式(shi)(shi)(shi)又分單(dan)螺(luo)旋(xuan)擺(bai)動(dong)(dong)(dong)和(he)雙螺(luo)旋(xuan)兩種,現在雙螺(luo)旋(xuan)比較常用,靠兩個螺(luo)旋(xuan)副(fu)降液(ye)壓(ya)缸(gang)(gang)內活塞的(de)直線(xian)運(yun)(yun)動(dong)(dong)(dong)轉(zhuan)變為直線(xian)運(yun)(yun)動(dong)(dong)(dong)與(yu)自轉(zhuan)運(yun)(yun)動(dong)(dong)(dong)的(de)復he運(yun)(yun)動(dong)(dong)(dong),從(cong)而實現擺(bai)動(dong)(dong)(dong)運(yun)(yun)動(dong)(dong)(dong)。





液(ye)壓(ya)缸結構基本(ben)上可以(yi)分為(wei)缸筒(tong)和(he)(he)(he)(he)缸蓋、活塞(sai)(sai)和(he)(he)(he)(he)活塞(sai)(sai)桿、密封裝(zhuang)置(zhi)、緩沖裝(zhuang)置(zhi)和(he)(he)(he)(he)排氣裝(zhuang)置(zhi)五個(ge)部分。今天(tian)威海力建小編(bian)著(zhu)重帶著(zhu)大家了(le)解一下(xia)缸筒(tong)和(he)(he)(he)(he)缸蓋。
缸(gang)筒和缸(gang)蓋
一般來說(shuo),缸(gang)筒(tong)(tong)和缸(gang)蓋(gai)的(de)(de)(de)結構(gou)形式(shi)和其使(shi)用(yong)的(de)(de)(de)材料有(you)關。工(gong)作壓力p<10MPa時(shi),使(shi)用(yong)鑄(zhu)鐵;p<20MPa時(shi),使(shi)用(yong)無(wu)縫(feng)鋼(gang)管;p>20MPa時(shi),使(shi)用(yong)鑄(zhu)鋼(gang)或(huo)鍛鋼(gang)。法蘭連接(jie)式(shi),結構(gou)簡單(dan),容(rong)易(yi)加(jia)工(gong),也容(rong)易(yi)裝(zhuang)拆(chai),但外形尺(chi)寸和重(zhong)(zhong)量都(dou)較(jiao)(jiao)(jiao)大(da),常用(yong)于鑄(zhu)鐵制的(de)(de)(de)缸(gang)筒(tong)(tong)上(shang)。半環(huan)連接(jie)式(shi),它(ta)的(de)(de)(de)缸(gang)筒(tong)(tong)壁部因(yin)開了(le)環(huan)形槽(cao)而削弱了(le)強度,為(wei)此有(you)時(shi)要加(jia)厚缸(gang)壁,它(ta)容(rong)易(yi)加(jia)工(gong)和裝(zhuang)拆(chai),重(zhong)(zhong)量較(jiao)(jiao)(jiao)輕,常用(yong)于無(wu)縫(feng)鋼(gang)管或(huo)鍛鋼(gang)制的(de)(de)(de)缸(gang)筒(tong)(tong)上(shang)。螺(luo)紋連接(jie)式(shi),它(ta)的(de)(de)(de)缸(gang)筒(tong)(tong)端部結構(gou)復雜,外徑(jing)(jing)加(jia)工(gong)時(shi)要求(qiu)保證內外徑(jing)(jing)同心(xin),裝(zhuang)拆(chai)要使(shi)用(yong)工(gong)具,它(ta)的(de)(de)(de)外形尺(chi)寸和重(zhong)(zhong)量都(dou)較(jiao)(jiao)(jiao)小,常用(yong)于無(wu)縫(feng)鋼(gang)管或(huo)鑄(zhu)鋼(gang)制的(de)(de)(de)缸(gang)筒(tong)(tong)上(shang)。拉桿連接(jie)式(shi),結構(gou)的(de)(de)(de)通用(yong)性(xing)大(da),容(rong)易(yi)加(jia)工(gong)和裝(zhuang)拆(chai),但外形尺(chi)寸較(jiao)(jiao)(jiao)大(da),且較(jiao)(jiao)(jiao)重(zhong)(zhong)。焊(han)接(jie)連接(jie)式(shi),結構(gou)簡單(dan),尺(chi)寸小,但缸(gang)底(di)處內徑(jing)(jing)不易(yi)加(jia)工(gong),且可能引(yin)起變形。
、液(ye)壓缸低速(su)爬行(xing)的現象
液壓(ya)缸的活塞桿在(zai)油壓(ya)的作用下伸出(chu)或縮(suo)回時,經(jing)(jing)常(chang)出(chu)現(xian)(xian)(xian)速度不均勻現(xian)(xian)(xian)象,并有(you)時伴(ban)有(you)振動和異響,從而引起(qi)整個(ge)液壓(ya)系(xi)統的振動,并帶(dai)動主(zhu)機其它部件振動,在(zai)主(zhu)機調試過程(cheng)中經(jing)(jing)常(chang)出(chu)現(xian)(xian)(xian),有(you)時速度快了,這種現(xian)(xian)(xian)象會(hui)減輕(qing)。除(chu)因液壓(ya)系(xi)統管路引起(qi)這種現(xian)(xian)(xian)象以外,液壓(ya)缸自身(shen)產生(sheng)的振動也(ye)經(jing)(jing)常(chang)引發此類現(xian)(xian)(xian)象。
原因分析
液壓(ya)(ya)缸有桿腔和無桿腔存有氣體(ti)(ti)而(er)產生的(de)(de)低速爬(pa)行(xing),由于氣體(ti)(ti)混(hun)在液壓(ya)(ya)油中,在壓(ya)(ya)力的(de)(de)作用下,容器內(nei)體(ti)(ti)積(ji)變(bian)化(hua),在高壓(ya)(ya)作用下甚(shen)至發生氣體(ti)(ti)瞬間(jian),從而(er)引起(qi)液壓(ya)(ya)缸的(de)(de)速度不穩定。