Rexroth比例方向(xiang)(xiang)閥(fa)(fa)(fa)(fa)是用(yong)電(dian)(dian)(dian)(dian)磁(ci)鐵的(de)(de)(de)(de)(de)推力(li)(li)來推動閥(fa)(fa)(fa)(fa)芯運動以變換(huan)(huan)(huan)流體(ti)流動方向(xiang)(xiang)的(de)(de)(de)(de)(de)控制(zhi)閥(fa)(fa)(fa)(fa)，簡稱(cheng)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)。電(dian)(dian)(dian)(dian)磁(ci)股份(fen)有滑閥(fa)(fa)(fa)(fa)和球(qiu)閥(fa)(fa)(fa)(fa)兩(liang)種結構，通(tong)常(chang)所(suo)說的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)為滑閥(fa)(fa)(fa)(fa)結構，稱(cheng)球(qiu)狀或錐狀閥(fa)(fa)(fa)(fa)芯的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)，也稱(cheng)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)。電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)作(zuo)用(yong):電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)心在閥(fa)(fa)(fa)(fa)體(ti)內的(de)(de)(de)(de)(de)相對工作(zuo)位置，使閥(fa)(fa)(fa)(fa)體(ti)各(ge)油口連通(tong)或斷開，從(cong)而控制(zhi)執行元件的(de)(de)(de)(de)(de)換(huan)(huan)(huan)向(xiang)(xiang)或啟停。電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)性能(neng)要求1.換(huan)(huan)(huan)向(xiang)(xiang)性能(neng) 在規(gui)定的(de)(de)(de)(de)(de)工作(zuo)條(tiao)件下，電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)通(tong)電(dian)(dian)(dian)(dian)后能(neng)否可靠(kao)地(di)換(huan)(huan)(huan)向(xiang)(xiang)，斷電(dian)(dian)(dian)(dian)后能(neng)否可靠(kao)地(di)復位。2.壓(ya)(ya)力(li)(li)損(sun)失(shi) 電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)壓(ya)(ya)力(li)(li)損(sun)失(shi)由(you)液流流過電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)口時(shi)產生(sheng)的(de)(de)(de)(de)(de)流動損(sun)失(shi)和節流損(sun)失(shi)組成。3.內泄露(lu)量電(dian)(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)內泄露(lu)量是指在規(gui)定的(de)(de)(de)(de)(de)工作(zuo)條(tiao)件下，處于各(ge)個不(bu)同(tong)工作(zuo)位置時(shi)，從(cong)高壓(ya)(ya)腔到低壓(ya)(ya)腔的(de)(de)(de)(de)(de)泄露(lu)量。4.換(huan)(huan)(huan)向(xiang)(xiang)和復位時(shi)間 從(cong)電(dian)(dian)(dian)(dian)磁(ci)鐵通(tong)電(dian)(dian)(dian)(dian)到閥(fa)(fa)(fa)(fa)芯換(huan)(huan)(huan)向(xiang)(xiang)終止所(suo)需要的(de)(de)(de)(de)(de)時(shi)間，復位時(shi)間是指從(cong)電(dian)(dian)(dian)(dian)磁(ci)斷電(dian)(dian)(dian)(dian)到閥(fa)(fa)(fa)(fa)芯回(hui)復到初始位置所(suo)需要的(de)(de)(de)(de)(de)時(shi)間。

型號4WRA和4WRAE

通徑6和10  2X系列(lie)

工作壓力(li)可達315 bar

流量可達: 42 I/min (通徑6)

75 I/min(通徑10)

特征

一直控式(shi)比例閥，不帶位移(yi)電反饋，4WRAE型帶集成式(shi)放大(da)板(OBE)

一(yi)控制(zhi)液流的方向和流量

一閥的(de)控制通過帶(dai)中心螺紋(wen)的(de)比例電磁鐵(tie)來(lai)實現，線圈可單獨拆卸

一底板安裝:

   孔型符合ISO 4401

   底(di)板按樣本RC 45052 (通徑6)或RC 45054 (通徑10,另行訂(ding)貨)，

一閥芯由彈簧對中

電控器4WRAE:

一帶電(dian)(dian)壓輸入或電(dian)(dian)流輸入(A1 resp. F1)的(de)集成式放大板(ban)(OBE)

4WRA:

采(cai)用(yong)歐洲卡制式的數字或模擬放大器(單獨(du)定(ding)購)

一模擬模塊放大器

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