德國Rexroth三位四通伺服方向閥4WRLE10...35E./W.的特(te)點：先導式4/3-伺服換(huan)向閥(fa)NG10～NG35，遮(zhe)蓋度約為(wei)20％；先導閥(fa)NG6，配(pei)有控制(zhi)活塞和鋼套，伺服性能可靠(kao)，單側操(cao)作，4/4斷電時處于Fail-safe功能位置(zhi)(zhi)；控制(zhi)電磁鐵(tie)，配(pei)有電子位置(zhi)(zhi)反(fan)饋器和集成式電子控制(zhi)器(OBE)，出(chu)廠時已校(xiao)準；主(zhu)級(ji)配(pei)有位置(zhi)(zhi)反(fan)饋器；電子補償、校(xiao)準遮(zhe)蓋度；線性滑閥(fa)，配(pei)有防扭轉裝置(zhi)(zhi)；流量特(te)性S=漸(jian)增式、NG16, 25, 27，帶有負載平衡(heng)口C1/C2；用(yong)于閥(fa)板安裝，NG10接(jie)口的位置(zhi)(zhi)符合ISO4401-05-05-0-05, NG16接(jie)口的位置(zhi)(zhi)符合ISO4401-07-07-0-05，NG25/27接(jie)口的位置(zhi)(zhi)符合ISO4401-08-08-0-05，NG35接(jie)口的位置(zhi)(zhi)符合ISO 4401-10-09-0-05；安裝板根據規格(ge)參(can)數表，NG10 RC 45055, NG16 RC45057, NG25/27 RC45059和NG35 RD45060（單獨(du)訂(ding)購(gou)(gou)）；符合DIN43563-AM6標準的線纜插座，參(can)見(jian)規格(ge)參(can)數表RD08008(單獨(du)訂(ding)購(gou)(gou))。 提示：正遮蓋先導式 4/3-伺(si)服換向閥可(ke)在(zai)開環或(huo)(huo)閉(bi)環控(kong)制的軸中(zhong)發揮作用(yong)， 斷電狀態下的遮蓋度約為20 ％。該狀態不可(ke)作為安全(quan)的基本位(wei)置。 因此在(zai)多數應用(yong)中(zhong)需要(yao)有“外部止(zhi)回閥”或(huo)(huo)者某些疊加閥，并(bing)且要(yao)注意(yi)接通/關閉(bi)順序。 好消息，好消息！為慶祝公(gong)司成(cheng)為力(li)士樂*商，現公(gong)布Rexroth三位四通伺服方向閥(fa)的*型(xing)號如下： 0811 404 346 4WRLE16V200M-3X/G24K0/A1M-857
0811 404 717 4WRLE10W4-80SJ-3X/G24K0/A102M-864
0811 404 715 4WRLE10E1-80SJ-3X/G24ETK0/A1M
0811 404 713 4WRLE10E80SJ-3X/G24ETK0/A1M
0811 404 712 4WRLE10W1-80SJ-3X/G24EK0/A102M-756
0811 404 711 4WRLE10W4-80SJ-3X/G24K0/A1M
0811 404 708 4WRLE10W1-80SJ-3X/G24EK0/A102M-744
0811 404 707 4WRLE10W80SJ-3X/G24ETK0/A1M
0811 404 706 4WRLE10E1-80SJ-3X/G24K0/A1M-755
0811 404 704 4WRLE10W50SJ-3X/G24ETK0/A1M
0811 404 703 4WRLE10W1-80SJ-3X/G24K0/A1M
0811 404 702 4WRLE10W80SJ-3X/G24K0/A1M
0811 404 701 4WRLE10E1-80SJ-3X/G24K0/A1M
0811 404 700 4WRLE10E80SJ-3X/G24K0/A1M
0811 404 588 4WRLE35R5-1100SJ-3X/G24EK0/A1M-868
0811 404 508 4WRLE35R5-1100SJ-3X/G24EK0/A102M-745
0811 404 505 4WRLE35W3-1100SJ-3X/G24EK0/A102M-745
0811 404 504 4WRLE35W1100SJ-3X/G24K0/A1M
0811 404 503 4WRLE35W5-600SJ-3X/G24EK0/A102M-745
0811 404 502 4WRLE35W1100SJ-3X/G24EK0/A102M-744
0811 404 494 4WRLE35W1100SJ-3X/G24K0/A1M-732
0811 404 493 4WRLE27W430SJ-3X/G24K0/A1M-732
0811 404 492 4WRLE25W4Z350SJ-3X/G24K0/A1M-732
0811 404 488 4WRLE25WZ350SJ-3X/G24K0/A1V
0811 404 485 4WRLE27E4-430SJ-3X/G24K0/A1M
0811 404 481 4WRLE25EZ350SJ-3X/G24ETK0/A1M
0811 404 480 4WRLE25WZ350SJ-3X/G24K0/A1M-759
0811 404 479 4WRLE27W3-430SJ-3X/G24EK0/A102M-745
0811 404 478 4WRLE27E430SJ-3X/G24K0/A1M
0811 404 477 4WRLE27X430SJ-3X/G24EK0/A102M-782
0811 404 474 4WRLE25W350SJ-3X/G24EK0/A102M-745
0811 404 473 4WRLE25W350SJ-3X/G24EK0/A102M-756
0811 404 472 4WRLE25W4Z350SJ-3X/G24K0/A1M
0811 404 471 4WRLE25W4Z350SJ-3X/G24ETK0/A1M
0811 404 470 4WRLE25W3-350SJ-3X/G24EK0/A102M-756
0811 404 467 4WRLE25W3-350SJ-3X/G24EK0/A102M-745
0811 404 466 4WRLE25EZ350SJ-3X/G24TK0/A1M
0811 404 462 4WRLE27W430SJ-3X/G24K0/A1M-758
0811 404 461 4WRLE25WZ350SJ-3X/G24K0/A1M-758
0811 404 459 4WRLE25E4-350SJ-3X/G24K0/A1M
0811 404 458 4WRLE27W430SJ-3X/G24K0/A1M
0811 404 457 4WRLE25W1Z350SJ-3X/G24K0/A1M
0811 404 456 4WRLE25WZ350SJ-3X/G24K0/A1M
0811 404 455 4WRLE25E1Z350SJ-3X/G24K0/A1M
0811 404 454 4WRLE25EZ350SJ-3X/G24K0/A1M
0811 404 453 4WRLE25WZ350SJ-3X/G24ETK0/A102M-749
0811 404 452 4WRLE25WZ350SJ-3X/G24EK0/A1M-561
0811 404 443 4WRLE27W4-430SJ-3X/G24ETK0/A102M-745 4WRLE10...35E./W.由 3 個主要部(bu)件構成(cheng)：先導閥，配有(you)(you)控(kong)制(zhi)控(kong)制(zhi)閥芯和(he)閥套、回位彈簧、控(kong)制(zhi)電磁鐵(tie)和(he)感應式位移傳(chuan)感器(qi)；主級，配有(you)(you)對中(zhong)彈簧和(he)位置(zhi)反(fan)饋器(qi)；集成(cheng)式電子(zi)控(kong)制(zhi)器(qi)。 當沒有操動控(kong)(kong)(kong)(kong)制(zhi)電(dian)磁(ci)鐵時，先導閥(fa)的(de)控(kong)(kong)(kong)(kong)制(zhi)滑(hua)閥(fa)在(zai)(zai)(zai)彈簧力作(zuo)用下(xia)處在(zai)(zai)(zai)“Fail-Safe”功能位(wei)置(zhi)中(zhong)(zhong)，主級(ji)(ji)滑(hua)閥(fa)處在(zai)(zai)(zai)其彈簧對(dui)中(zhong)(zhong)的(de)中(zhong)(zhong)間(jian)位(wei)置(zhi)。在(zai)(zai)(zai)集(ji)成電(dian)子控(kong)(kong)(kong)(kong)制(zhi)器(qi)中(zhong)(zhong)將設定值(zhi)(zhi)與(yu)主級(ji)(ji)控(kong)(kong)(kong)(kong)制(zhi)滑(hua)閥(fa)的(de)位(wei)置(zhi)實際值(zhi)(zhi)進(jin)行比(bi)較(jiao)。如(ru)果存在(zai)(zai)(zai)控(kong)(kong)(kong)(kong)制(zhi)偏差，就(jiu)會驅動控(kong)(kong)(kong)(kong)制(zhi)電(dian)磁(ci)鐵，以(yi)改(gai)變磁(ci)力的(de)方式對(dui)先導滑(hua)閥(fa)進(jin)行調整(zheng)。 經過(guo)(guo)控(kong)(kong)(kong)(kong)制(zhi)截面的(de)體積(ji)流量使得主控(kong)(kong)(kong)(kong)制(zhi)滑(hua)閥(fa)移動，相對(dui)于設定值(zhi)(zhi)0.5...10V以(yi)20...100％比(bi)例調節其行程。如(ru)果設定值(zhi)(zhi)＜±0.5 V，則主級(ji)(ji)的(de)控(kong)(kong)(kong)(kong)制(zhi)滑(hua)閥(fa)就(jiu)會在(zai)(zai)(zai)對(dui)中(zhong)(zhong)彈簧作(zuo)用下(xia)保持在(zai)(zai)(zai)被遮(zhe)蓋的(de)中(zhong)(zhong)間(jian)位(wei)置(zhi)。要么在(zai)(zai)(zai)內部(bu)通(tong)過(guo)(guo)接(jie)(jie)口P，或(huo)者在(zai)(zai)(zai)外部(bu)通(tong)過(guo)(guo)接(jie)(jie)口X將控(kong)(kong)(kong)(kong)制(zhi)油(you)供應給先導閥(fa)。可以(yi)在(zai)(zai)(zai)內部(bu)通(tong)過(guo)(guo)接(jie)(jie)口T或(huo)者在(zai)(zai)(zai)外部(bu)通(tong)過(guo)(guo)接(jie)(jie)口Y回(hui)流到油(you)箱。 如果發生故障(zhang)，或者當電纜斷(duan)線(xian)時，集成式(shi)電子控制(zhi)器就將控制(zhi)電磁鐵斷(duan)電，先導滑閥進入(ru)“Fail-Safe”功能位置，并且將主級的控制(zhi)油(you)腔卸空。 主級控制(zhi)滑閥在彈簧(huang)作用下(xia)進入(ru)中間位置。 可(ke)將(jiang)4/3-伺服換向閥與壓力(li)(li)補(bu)(bu)償(chang)元件組合使(shi)用，以(yi)便補(bu)(bu)償(chang)負(fu)荷壓力(li)(li)或者入口(kou)(kou)壓力(li)(li)的(de)波動。 若為NG10、35，則通過一個轉換閥平衡負(fu)荷。 若為NG16、25 和(he) 27，則通過兩個附加接口(kou)(kou)C1和(he)C2。這樣即使(shi)是負(fu)流(liu)量(liang)負(fu)荷，壓力(li)(li)補(bu)(bu)償(chang)元件也可(ke)始終獲得正確(que)的(de)壓力(li)(li)信(xin)號。當使(shi)用壓力(li)(li)補(bu)(bu)償(chang)元件時(shi)，應(ying)當針對閥來(lai)選用外部控制油供(gong)應(ying)。 4WRLE10...35E./W.的(de)zui大工作壓力(li)P, A, B 350 bar (NG27: 280 bar)和額定(ding)體積流量 50...1100 l/min (?p = 10 bar)。我(wo)們力(li)士(shi)樂人(ren)魚您心(xin)(xin)連心(xin)(xin)，同心(xin)(xin)同德一路攜手繼(ji)續前行，創(chuang)造(zao)更美好的(de)明(ming)天！ |
