
威海力建液(ye)壓設(she)備廠(chang)
經(jing)營模式:生產加工
地(di)址:山(shan)東(dong)省威海市羊亭孫家灘(tan)工業園
主營:液壓缸,油缸,液壓系(xi)統(tong)
業務(wu)熱(re)線:
QQ:3049278720
O形(xing)密封(feng)圈(quan)在(zai)低壓(ya)(ya)下(xia)使用(yong)時,與U形(xing)密封(feng)圈(quan)比較(jiao),由(you)于(yu)面(mian)(mian)壓(ya)(ya)較(jiao)高(gao)、動靜(jing)摩擦阻力之(zhi)差較(jiao)大,容(rong)易產生(sheng)滑移(yi)或爬(pa)(pa)行(xing);U型密封(feng)圈(quan)的面(mian)(mian)壓(ya)(ya)隨(sui)著(zhu)壓(ya)(ya)力的提高(gao)而(er)增大,雖然密封(feng)效果也相應(ying)提高(gao),但動靜(jing)摩擦阻力之(zhi)差也變大,內壓(ya)(ya)增加(jia),影響橡(xiang)膠彈性(xing),由(you)于(yu)唇緣的接觸阻力增大,密封(feng)圈(quan)將會傾翻及唇緣伸長,也容(rong)易引起(qi)滑移(yi)或爬(pa)(pa)行(xing),為防(fang)止其傾翻可(ke)采用(yong)支承環保持其穩定。





液壓缸結構基本上(shang)可以分為缸筒和(he)缸蓋、活(huo)塞和(he)活(huo)塞桿、密封(feng)裝(zhuang)置、緩沖裝(zhuang)置和(he)排氣裝(zhuang)置五(wu)個部(bu)分。今天(tian)威海(hai)力建(jian)小編著重帶著大(da)家了(le)解一下缸筒和(he)缸蓋。
缸(gang)筒和缸(gang)蓋
一(yi)般來(lai)說,缸筒(tong)(tong)和缸蓋(gai)的(de)(de)結構(gou)(gou)(gou)形(xing)式(shi)和其使(shi)用(yong)(yong)(yong)的(de)(de)材(cai)料有關(guan)。工作壓力(li)p<10MPa時(shi),使(shi)用(yong)(yong)(yong)鑄鐵(tie);p<20MPa時(shi),使(shi)用(yong)(yong)(yong)無(wu)縫鋼(gang)管(guan);p>20MPa時(shi),使(shi)用(yong)(yong)(yong)鑄鋼(gang)或鍛鋼(gang)。法蘭連(lian)(lian)接(jie)式(shi),結構(gou)(gou)(gou)簡(jian)單(dan),容(rong)易加(jia)工,也容(rong)易裝(zhuang)(zhuang)拆,但(dan)(dan)外(wai)形(xing)尺寸(cun)(cun)和重(zhong)(zhong)(zhong)量(liang)都(dou)較(jiao)大(da)(da),常(chang)用(yong)(yong)(yong)于鑄鐵(tie)制(zhi)(zhi)的(de)(de)缸筒(tong)(tong)上。半(ban)環(huan)連(lian)(lian)接(jie)式(shi),它的(de)(de)缸筒(tong)(tong)壁部因(yin)開(kai)了(le)環(huan)形(xing)槽而(er)削(xue)弱了(le)強度,為此(ci)有時(shi)要加(jia)厚缸壁,它容(rong)易加(jia)工和裝(zhuang)(zhuang)拆,重(zhong)(zhong)(zhong)量(liang)較(jiao)輕,常(chang)用(yong)(yong)(yong)于無(wu)縫鋼(gang)管(guan)或鍛鋼(gang)制(zhi)(zhi)的(de)(de)缸筒(tong)(tong)上。螺紋連(lian)(lian)接(jie)式(shi),它的(de)(de)缸筒(tong)(tong)端部結構(gou)(gou)(gou)復雜,外(wai)徑(jing)加(jia)工時(shi)要求保證內外(wai)徑(jing)同心(xin),裝(zhuang)(zhuang)拆要使(shi)用(yong)(yong)(yong)工具,它的(de)(de)外(wai)形(xing)尺寸(cun)(cun)和重(zhong)(zhong)(zhong)量(liang)都(dou)較(jiao)小,常(chang)用(yong)(yong)(yong)于無(wu)縫鋼(gang)管(guan)或鑄鋼(gang)制(zhi)(zhi)的(de)(de)缸筒(tong)(tong)上。拉桿連(lian)(lian)接(jie)式(shi),結構(gou)(gou)(gou)的(de)(de)通用(yong)(yong)(yong)性大(da)(da),容(rong)易加(jia)工和裝(zhuang)(zhuang)拆,但(dan)(dan)外(wai)形(xing)尺寸(cun)(cun)較(jiao)大(da)(da),且(qie)較(jiao)重(zhong)(zhong)(zhong)。焊接(jie)連(lian)(lian)接(jie)式(shi),結構(gou)(gou)(gou)簡(jian)單(dan),尺寸(cun)(cun)小,但(dan)(dan)缸底處(chu)內徑(jing)不(bu)易加(jia)工,且(qie)可能(neng)引起變形(xing)。
1、液(ye)(ye)壓(ya)缸有(you)桿腔和無桿腔存有(you)氣(qi)體(ti)而產生(sheng)的低速爬(pa)行,可通過反復運(yun)行液(ye)(ye)壓(ya)缸達到排氣(qi)的目(mu)的,必要時(shi)在管路(lu)或液(ye)(ye)壓(ya)缸的兩腔設置(zhi)排氣(qi)裝置(zhi),在液(ye)(ye)壓(ya)系(xi)統工(gong)作時(shi)進(jin)行排氣(qi)。
上述圖片僅供參考,詳細產品詳情請咨詢我們,更多型號請訪問我們的網站或致電我們了解"。謝謝
2、液(ye)(ye)(ye)壓(ya)缸(gang)設(she)計(ji)間(jian)(jian)(jian)隙不當產(chan)生(sheng)的(de)(de)(de)(de)(de)低速(su)(su)爬行(xing),可正確設(she)計(ji)液(ye)(ye)(ye)壓(ya)缸(gang)內部活塞和缸(gang)體(ti)、活塞桿和導(dao)向套之間(jian)(jian)(jian)的(de)(de)(de)(de)(de)滑動配(pei)(pei)合(he)間(jian)(jian)(jian)隙,理論上的(de)(de)(de)(de)(de)配(pei)(pei)合(he)間(jian)(jian)(jian)隙為(wei)H9/N或(huo)H9/f8,也有(you)H8/f8的(de)(de)(de)(de)(de);根據本作者的(de)(de)(de)(de)(de)經驗(yan),液(ye)(ye)(ye)壓(ya)缸(gang)的(de)(de)(de)(de)(de)缸(gang)徑和桿徑由(you)小(xiao)到大(da),如都按此(ci)來(lai)設(she)計(ji)配(pei)(pei)合(he)間(jian)(jian)(jian)隙,對(dui)于較(jiao)大(da)缸(gang)徑(≥?200mm)和桿徑(≥?140mm)的(de)(de)(de)(de)(de)配(pei)(pei)合(he)間(jian)(jian)(jian)隙就顯得間(jian)(jian)(jian)隙過大(da),實(shi)(shi)際(ji)應(ying)過程(cheng)中,這類液(ye)(ye)(ye)壓(ya)缸(gang)低速(su)(su)爬行(xing)現象較(jiao)小(xiao)缸(gang)徑的(de)(de)(de)(de)(de)液(ye)(ye)(ye)壓(ya)缸(gang)出現的(de)(de)(de)(de)(de)多,國(guo)外此(ci)類液(ye)(ye)(ye)壓(ya)缸(gang)滑動面的(de)(de)(de)(de)(de)配(pei)(pei)合(he)間(jian)(jian)(jian)隙一般設(she)計(ji)為(wei)0.05mm∽0.15mm,從(cong)實(shi)(shi)際(ji)比較(jiao)的(de)(de)(de)(de)(de)結果(guo)來(lai)看,液(ye)(ye)(ye)壓(ya)缸(gang)的(de)(de)(de)(de)(de)低速(su)(su)爬行(xing)問題(ti)明(ming)顯改善(shan)。因此(ci)對(dui)大(da)缸(gang)徑的(de)(de)(de)(de)(de)液(ye)(ye)(ye)壓(ya)缸(gang)建議(yi)選用這種方(fang)法(fa)。