萊山區液壓系統加工-威海力建(推薦商家)-加煤液壓系統加工
威海力建(jian)液壓設備廠(chang)
經營模式(shi)：生產加工(gong)
地址：山東(dong)省(sheng)威海市羊亭孫家灘工業園
主營：液壓缸(gang),油缸(gang),液壓系統
業務熱線(xian)：
QQ：3049278720
產(chan)品詳情 聯系(xi)方式
產品品牌：威海力建
供貨總量：不限
價格說明：議定
包裝說明：不限
物流說明：貨運及物流
交貨說明：按訂單
有效期至：長期有效
液(ye)壓(ya)傳動中(zhong)用來控(kong)制(zhi)液(ye)體壓(ya)力、流量和(he)方向的元件。其中(zhong)控(kong)制(zhi)通、斷和(he)流向的稱為方向控(kong)制(zhi)閥。
方(fang)向(xiang)控(kong)制閥(fa)按用途(tu)分為(wei)單(dan)向(xiang)閥(fa)和換(huan)向(xiang)閥(fa)。
1、單向(xiang)(xiang)閥：只允(yun)許(xu)流(liu)體在管道中單向(xiang)(xiang)接(jie)通，反向(xiang)(xiang)即切(qie)斷。
2、換向閥(fa)：改變不(bu)同(tong)管路間的通(tong)(tong)、斷(duan)關系、根據閥(fa)芯(xin)在閥(fa)體中的工(gong)作位置數分(fen)兩位、三位等(deng)；根據所控制的通(tong)(tong)道數分(fen)兩通(tong)(tong)、三通(tong)(tong)、四(si)通(tong)(tong)、五(wu)通(tong)(tong)等(deng)；如二位二通(tong)(tong)、三位三通(tong)(tong)，三位五(wu)通(tong)(tong)等(deng)根據閥(fa)芯(xin)驅動(dong)(dong)(dong)方式分(fen)手動(dong)(dong)(dong)、機動(dong)(dong)(dong)、電(dian)磁、液動(dong)(dong)(dong)等(deng)。
60年代后(hou)期，在上述(shu)幾種液壓控(kong)制(zhi)(zhi)(zhi)閥(fa)的基礎上又研制(zhi)(zhi)(zhi)出電(dian)(dian)液比(bi)例控(kong)制(zhi)(zhi)(zhi)閥(fa)。它的輸出量(liang)(壓力(li)、流量(liang))能隨輸入的電(dian)(dian)信號連續變(bian)化。電(dian)(dian)液比(bi)例控(kong)制(zhi)(zhi)(zhi)閥(fa)按作用不同(tong)，相應地分為電(dian)(dian)液比(bi)例壓力(li)控(kong)制(zhi)(zhi)(zhi)閥(fa)、電(dian)(dian)液比(bi)例流量(liang)控(kong)制(zhi)(zhi)(zhi)閥(fa)和電(dian)(dian)液比(bi)例方向(xiang)控(kong)制(zhi)(zhi)(zhi)閥(fa)等。
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液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)站又稱為(wei)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵(beng)站，系統(tong)(tong)元件主要是(shi)由液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵(beng)、液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)缸、液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)馬達、液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)閥等構成的(de)(de)(de)。液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵(beng)是(shi)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)系統(tong)(tong)的(de)(de)(de)心臟，簡稱油泵(beng)。在液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)系統(tong)(tong)中，一(yi)定至少有(you)一(yi)個泵(beng)。液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵(beng)是(shi)一(yi)種能(neng)(neng)量轉(zhuan)換裝(zhuang)置，它的(de)(de)(de)作用是(shi)使液(ye)(ye)(ye)(ye)體(ti)發生運動，把機械能(neng)(neng)轉(zhuan)換成流體(ti)能(neng)(neng)（也叫(jiao)做液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)能(neng)(neng)）。液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)系統(tong)(tong)
泵是液(ye)壓(ya)傳動(dong)(dong)系(xi)統中(zhong)的動(dong)(dong)力元(yuan)件，由原動(dong)(dong)機驅(qu)動(dong)(dong)，從原動(dong)(dong)機的輸(shu)出(chu)功率中(zhong)取出(chu)機械(xie)能，為系(xi)統提供壓(ya)力油液(ye)。然后，在需要(yao)做功的場(chang)所，由執(zhi)行(xing)元(yuan)件（液(ye)壓(ya)缸或液(ye)壓(ya)馬(ma)達(da)）再把(ba)流體(ti)壓(ya)力能轉換(huan)成機械(xie)能輸(shu)出(chu)。
液(ye)(ye)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)在(zai)(zai)(zai)液(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)中(zhong)的(de)(de)(de)工(gong)作(zuo)方式(shi)是(shi)閥(fa)(fa)(fa)(fa)(fa)(fa)體和閥(fa)(fa)(fa)(fa)(fa)(fa)芯相對(dui)運動，這種(zhong)工(gong)作(zuo)方式(shi)不(bu)(bu)可避免的(de)(de)(de)就是(shi)磨損(sun)(sun)。液(ye)(ye)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)(fa)體和閥(fa)(fa)(fa)(fa)(fa)(fa)芯進(jin)行相對(dui)運動的(de)(de)(de)過程中(zhong)，會不(bu)(bu)斷的(de)(de)(de)摩擦，在(zai)(zai)(zai)工(gong)作(zuo)一段時間(jian)(jian)(jian)后，液(ye)(ye)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)各元(yuan)件之間(jian)(jian)(jian)的(de)(de)(de)尺寸、形狀(zhuang)、質量等發生(sheng)變化，不(bu)(bu)再是(shi)液(ye)(ye)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)原有的(de)(de)(de)特性，在(zai)(zai)(zai)液(ye)(ye)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)工(gong)作(zuo)中(zhong)就會失效(xiao)，出現故障。例如，在(zai)(zai)(zai)液(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)中(zhong)的(de)(de)(de)減(jian)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)工(gong)作(zuo)中(zhong)，錐閥(fa)(fa)(fa)(fa)(fa)(fa)和閥(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)之間(jian)(jian)(jian)因為長時間(jian)(jian)(jian)的(de)(de)(de)摩擦、磨損(sun)(sun)，造成零件之間(jian)(jian)(jian)的(de)(de)(de)配合度不(bu)(bu)好(hao)，在(zai)(zai)(zai)液(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)中(zhong)，減(jian)壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)就無(wu)法起到減(jian)壓(ya)(ya)(ya)的(de)(de)(de)作(zuo)用。
