
威海力建(jian)液壓(ya)設(she)備廠
經營模(mo)式(shi):生產(chan)加工(gong)
地址:山東省威海(hai)市(shi)羊亭孫(sun)家(jia)灘工業園
主營(ying):液(ye)壓(ya)缸,油缸,液(ye)壓(ya)系統
業務(wu)熱(re)線:
QQ:3049278720
.對靜(jing)密(mi)(mi)封(feng)件(jian)的(de)要(yao)求。靜(jing)密(mi)(mi)封(feng)件(jian)在(zai)剛性固定表(biao)(biao)面(mian)之間防止油液外泄(xie)。合(he)理設計(ji)密(mi)(mi)封(feng)槽尺(chi)寸及公差,使安裝(zhuang)后的(de)密(mi)(mi)封(feng)件(jian)到(dao)一定擠壓產生變(bian)(bian)形以便填塞配合(he)表(biao)(biao)面(mian)的(de)微觀凹陷,并把密(mi)(mi)封(feng)件(jian)內(nei)應力提高到(dao)高于被密(mi)(mi)封(feng)的(de)壓力。隨著配合(he)表(biao)(biao)面(mian)的(de)運動,靜(jing)密(mi)(mi)封(feng)就(jiu)成了動密(mi)(mi)封(feng)。粗糙的(de)配合(he)表(biao)(biao)面(mian)將(jiang)(jiang)磨(mo)損(sun)密(mi)(mi)封(feng)件(jian),變(bian)(bian)動的(de)間隙將(jiang)(jiang)蠶食密(mi)(mi)封(feng)件(jian)邊緣。
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.合理設計安(an)裝(zhuang)板。當(dang)閥組或底(di)板用螺栓固定(ding)在安(an)裝(zhuang)面(mian)(mian)(mian)上時(shi),為了得到(dao)(dao)(dao)滿意(yi)的(de)初始密封和(he)防止密封件被擠(ji)出(chu)溝槽和(he)被磨損,安(an)裝(zhuang)面(mian)(mian)(mian)要平直(zhi),密封面(mian)(mian)(mian)要求精加工(gong),表(biao)面(mian)(mian)(mian)粗(cu)糙度(du)要達到(dao)(dao)(dao)0.8μm,平面(mian)(mian)(mian)度(du)要達到(dao)(dao)(dao)0.01/100mm。表(biao)面(mian)(mian)(mian)不能有徑向(xiang)劃(hua)痕(hen),連接螺釘的(de)預緊(jin)力要足(zu)夠(gou)大(da),以防止表(biao)面(mian)(mian)(mian)分離(li)。





液壓(ya)(ya)系(xi)統(tong)常用回(hui)路(lu)(lu),現(xian)代設備的(de)液壓(ya)(ya)系(xi)統(tong),不論其復雜程度如何,總是由一些能完成(cheng)一定(ding)功能的(de)常用基本回(hui)路(lu)(lu)組成(cheng)。理解和(he)(he)熟悉(xi)這些常用的(de)基本回(hui)路(lu)(lu),對(dui)于正確分析各種回(hui)路(lu)(lu)的(de)工作原理,掌握回(hui)路(lu)(lu)的(de)功能,順利(li)閱(yue)讀液壓(ya)(ya)系(xi)統(tong)圖和(he)(he)設計液壓(ya)(ya)系(xi)統(tong)是十(shi)分重要的(de)
用流量閥(fa)和定(ding)量液壓泵組(zu)成(cheng)的(de)節(jie)流調速回路(lu)雖然調節(jie)起來非常(chang)方便,但是用節(jie)流閥(fa)進行調速存在(zai)著速度隨負載變化的(de)問題,同時油(you)液正在(zai)通過流量閥(fa)時所造成(cheng)的(de)功率(lv)損失大,回路(lu)效率(lv)大。
容積調速回路包括變(bian)量泵與定(ding)量執行元(yuan)件(jian)(液(ye)(ye)(ye)壓缸或液(ye)(ye)(ye)壓馬達(da))定(ding)量泵與變(bian)量液(ye)(ye)(ye)壓馬達(da)以及變(bian)量泵與變(bian)量液(ye)(ye)(ye)壓馬達(da)三種不同的組 合。
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液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)在(zai)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)系(xi)(xi)統中(zhong)(zhong)的(de)(de)工(gong)作(zuo)方(fang)式是(shi)(shi)閥(fa)體和閥(fa)芯(xin)相對運(yun)動(dong),這種工(gong)作(zuo)方(fang)式不(bu)可避(bi)免的(de)(de)就是(shi)(shi)磨損。液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)的(de)(de)閥(fa)體和閥(fa)芯(xin)進(jin)行相對運(yun)動(dong)的(de)(de)過(guo)程中(zhong)(zhong),會不(bu)斷的(de)(de)摩(mo)擦,在(zai)工(gong)作(zuo)一段時(shi)(shi)間(jian)(jian)后,液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)各元件之(zhi)間(jian)(jian)的(de)(de)尺寸(cun)、形(xing)狀(zhuang)、質量等發生變化,不(bu)再(zai)是(shi)(shi)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)原有的(de)(de)特性,在(zai)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)工(gong)作(zuo)中(zhong)(zhong)就會失效,出現故(gu)障(zhang)。例(li)如,在(zai)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)系(xi)(xi)統中(zhong)(zhong)的(de)(de)減壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)工(gong)作(zuo)中(zhong)(zhong),錐閥(fa)和閥(fa)座之(zhi)間(jian)(jian)因為長(chang)時(shi)(shi)間(jian)(jian)的(de)(de)摩(mo)擦、磨損,造成零(ling)件之(zhi)間(jian)(jian)的(de)(de)配合度不(bu)好(hao),在(zai)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)系(xi)(xi)統中(zhong)(zhong),減壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)就無法起(qi)到(dao)減壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)作(zuo)用。