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　液(ye)壓(ya)系統(tong)泄(xie)漏影(ying)響(xiang)著系統(tong)工(gong)作(zuo)的安全性(xing),造(zao)(zao)(zao)成(cheng)油液(ye)浪(lang)費、污(wu)染周(zhou)圍環境、增加機器的停運時間、降低(di)生產(chan)率、增加生產(chan)成(cheng)本及對(dui)產(chan)品造(zao)(zao)(zao)成(cheng)污(wu)損,因此,對(dui)液(ye)壓(ya)系統(tong)的泄(xie)漏我們(men)必須加以控制。幾乎所(suo)有的液(ye)壓(ya)系統(tong)的泄(xie)漏都是在使用一(yi)段時間后由于以下三(san)個原因引起(qi)的:一(yi)是沖(chong)擊和(he)振動(dong)(dong)造(zao)(zao)(zao)成(cheng)管(guan)接頭松動(dong)(dong);二是動(dong)(dong)密封件(jian)及配合件(jian)相互磨損;三(san)是油溫(wen)過高及橡膠密封與(yu)液(ye)壓(ya)油不相容(rong)而變質。

上(shang)述圖片僅(jin)供(gong)參考，詳細產品(pin)詳情請(qing)咨詢我(wo)們，更多型(xing)號(hao)請(qing)訪問(wen)我(wo)們的網站(zhan)或致電我(wo)們了解'。謝謝

液壓傳動中用來控制(zhi)液體(ti)壓力、流量和(he)方向的元件。其中控制(zhi)通、斷和(he)流向的稱(cheng)為方向控制(zhi)閥。

方向控制閥(fa)按用途分為單向閥(fa)和換向閥(fa)。

1、單向(xiang)閥：只允許流體(ti)在管道中單向(xiang)接通(tong)，反向(xiang)即切斷。

2、換向閥：改變不同管(guan)路間的通(tong)(tong)(tong)(tong)(tong)(tong)、斷(duan)關系(xi)、根據閥芯(xin)(xin)在(zai)閥體中的工作位(wei)(wei)置數分(fen)兩位(wei)(wei)、三位(wei)(wei)等(deng)(deng)；根據所(suo)控制的通(tong)(tong)(tong)(tong)(tong)(tong)道(dao)數分(fen)兩通(tong)(tong)(tong)(tong)(tong)(tong)、三通(tong)(tong)(tong)(tong)(tong)(tong)、四通(tong)(tong)(tong)(tong)(tong)(tong)、五通(tong)(tong)(tong)(tong)(tong)(tong)等(deng)(deng)；如(ru)二位(wei)(wei)二通(tong)(tong)(tong)(tong)(tong)(tong)、三位(wei)(wei)三通(tong)(tong)(tong)(tong)(tong)(tong)，三位(wei)(wei)五通(tong)(tong)(tong)(tong)(tong)(tong)等(deng)(deng)根據閥芯(xin)(xin)驅(qu)動方式分(fen)手動、機動、電磁、液動等(deng)(deng)。

　　60年(nian)代后期，在上述(shu)幾種液(ye)(ye)(ye)壓(ya)(ya)控(kong)制(zhi)(zhi)閥(fa)(fa)的(de)基礎上又研制(zhi)(zhi)出(chu)電(dian)(dian)液(ye)(ye)(ye)比(bi)(bi)例控(kong)制(zhi)(zhi)閥(fa)(fa)。它的(de)輸(shu)出(chu)量(壓(ya)(ya)力、流(liu)(liu)量)能隨輸(shu)入的(de)電(dian)(dian)信號連續變(bian)化(hua)。電(dian)(dian)液(ye)(ye)(ye)比(bi)(bi)例控(kong)制(zhi)(zhi)閥(fa)(fa)按(an)作用不同，相應地(di)分(fen)為電(dian)(dian)液(ye)(ye)(ye)比(bi)(bi)例壓(ya)(ya)力控(kong)制(zhi)(zhi)閥(fa)(fa)、電(dian)(dian)液(ye)(ye)(ye)比(bi)(bi)例流(liu)(liu)量控(kong)制(zhi)(zhi)閥(fa)(fa)和電(dian)(dian)液(ye)(ye)(ye)比(bi)(bi)例方向控(kong)制(zhi)(zhi)閥(fa)(fa)等。

上述(shu)圖片僅供參考，詳細產(chan)品詳情請(qing)咨(zi)詢我(wo)(wo)們(men)，更(geng)多型(xing)號請(qing)訪問我(wo)(wo)們(men)的(de)網站或致電我(wo)(wo)們(men)了解'。謝(xie)謝(xie)

保持動(dong)力裝(zhuang)置，管路連接和(he)元件的清(qing)潔；注意污染(ran)和(he)水分，來自周圍環境(jing)的污染(ran)物一定不能(neng)(neng)進(jin)入油(you)箱，給油(you)箱加(jia)(jia)油(you)只能(neng)(neng)通過(guo)過(guo)濾(lv)器(qi)(qi)，是(shi)系統(tong)過(guo)濾(lv)器(qi)(qi)或裝(zhuang)有(you)(you)精過(guo)濾(lv)器(qi)(qi)的便攜式過(guo)濾(lv)車(che)。如果內(nei)部有(you)(you)保護層，必須與使用的液壓油(you)箱適(shi)應；存儲(chu)的部件沒有(you)(you)加(jia)(jia)油(you)或用防腐液處理(li)，會導(dao)致形成(cheng)樹脂狀沉淀(dian)物，須用溶解劑清(qing)除并恢(hui)復潤滑膜；檢查所有(you)(you)要安裝(zhuang)的部件是(shi)否到貨；對運輸過(guo)程中的損壞作出記錄。