
威海力建液壓設備廠
經(jing)營(ying)模式:生產加工(gong)
地(di)址:山東省威(wei)海(hai)市羊亭孫(sun)家灘工業園
主營:液(ye)壓缸,油缸,液(ye)壓系統
業務(wu)熱線(xian):
QQ:3049278720
在(zai)設計(ji)和加(jia)工(gong)(gong)(gong)環(huan)節(jie)中要(yao)充(chong)分考慮影響泄漏的重(zhong)要(yao)因素密封溝槽的設計(ji)和加(jia)工(gong)(gong)(gong)。美國汽車(che)行業工(gong)(gong)(gong)程師協會(SAE)推薦以下兩種防止(zhi)油口漏油的解決辦法。
①SAE直螺紋“O”形圈油(you)口:密封靠“O”形圈,連接靠直螺紋;
②SAE4螺栓(shuan)法蘭:適用于較大(da)油口。
另外,密(mi)(mi)封件的(de)(de)選(xuan)擇也(ye)是非常(chang)重要的(de)(de),密(mi)(mi)封表面的(de)(de)粗糙(cao)度通常(chang)靜密(mi)(mi)封表為Ra3.2~Ra1.6,動密(mi)(mi)封表面為Ra0.8~Ra0.4。如果不在開始多方面考(kao)慮泄漏的(de)(de)影響因素,將會給以后(hou)的(de)(de)生產中(zhong)帶來(lai)無法(fa)估(gu)量的(de)(de)損失。
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液(ye)壓(ya)(ya)(ya)(ya)站又稱為液(ye)壓(ya)(ya)(ya)(ya)泵(beng)站,系(xi)(xi)統(tong)元件主要(yao)是(shi)(shi)由液(ye)壓(ya)(ya)(ya)(ya)泵(beng)、液(ye)壓(ya)(ya)(ya)(ya)缸、液(ye)壓(ya)(ya)(ya)(ya)馬達、液(ye)壓(ya)(ya)(ya)(ya)閥等構成的。液(ye)壓(ya)(ya)(ya)(ya)泵(beng)是(shi)(shi)液(ye)壓(ya)(ya)(ya)(ya)系(xi)(xi)統(tong)的心臟,簡稱油(you)泵(beng)。在液(ye)壓(ya)(ya)(ya)(ya)系(xi)(xi)統(tong)中(zhong),一定至少有一個(ge)泵(beng)。液(ye)壓(ya)(ya)(ya)(ya)泵(beng)是(shi)(shi)一種能(neng)量轉換(huan)裝(zhuang)置(zhi),它(ta)的作用是(shi)(shi)使(shi)液(ye)體發(fa)生運動,把機械能(neng)轉換(huan)成流體能(neng)(也叫做液(ye)壓(ya)(ya)(ya)(ya)能(neng))。液(ye)壓(ya)(ya)(ya)(ya)系(xi)(xi)統(tong)
泵是(shi)液(ye)壓傳動(dong)(dong)(dong)系(xi)統中(zhong)(zhong)的動(dong)(dong)(dong)力(li)元(yuan)件(jian),由原動(dong)(dong)(dong)機驅動(dong)(dong)(dong),從原動(dong)(dong)(dong)機的輸出(chu)(chu)功(gong)率(lv)中(zhong)(zhong)取(qu)出(chu)(chu)機械能,為系(xi)統提供(gong)壓力(li)油(you)液(ye)。然(ran)后,在(zai)需要做功(gong)的場所(suo),由執(zhi)行元(yuan)件(jian)(液(ye)壓缸或液(ye)壓馬(ma)達)再把流體壓力(li)能轉(zhuan)換成(cheng)機械能輸出(chu)(chu)。
開式(shi)系統和閉式(shi)系統:
按照液壓回路(lu)的基本構成可以把液壓系(xi)(xi)統(tong)劃(hua)分為開式系(xi)(xi)統(tong)和閉式系(xi)(xi)統(tong)。
開式系統:
泵所輸(shu)出的壓(ya)力油(you)在(zai)完(wan)成做功(gong)任務(wu)后從執行駛器返回(hui)油(you)箱。應用(yong)普遍,但油(you)箱要足夠的大。有油(you)缸的系(xi)統(tong)肯定(ding)是開式系(xi)統(tong)
閉式系統:
泵輸出的壓(ya)力油從執(zhi)行器再(zai)返(fan)回泵,從而形成(cheng)閉式(shi)回路。多用于車輛的行走驅動,用升壓(ya)泵補油,并且用沖洗閥局部換油。
與開(kai)式回路相比(bi),閉式回路(特別是制(zhi)動(dong)時有功(gong)率回收的效果),發熱量少,執行器(qi)的前進、后(hou)退平穩(wen);但(dan)是泵(beng)必須是雙(shuang)流向變量泵(beng)。