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Rexroth伺服閥4WS2EM10-5X/75B11T315K31EV

REXROTH力士樂(lè )比例閥，伺服閥

比例方向閥 

直控式比例方向閥 4WRA, 4WRAE, 4WRAF, 4WRE, 4WREE, 4WREF, 4WREEM

先導式比例方向閥 4WRZ, 4WRZE, 4WRZF, 4WRKE

其他 直控式二位三通比例方向閥（插裝閥）

帶感應式位置開(kāi)關(guān)的比例方向閥

高頻響閥 

直控式 WV1, RV1-PL1, RV1-HRV1, RV1-P/Q1

先導式 4WRDE, WV2-HPP, RV2-PL2, RV2-PL2, RV2-HRV2, 3/2V

伺服閥 

二級伺服閥 4WS.2E

三級伺服閥 4WSE3EE

比例壓力控制閥 

直動(dòng)式 DBET, DBETE, DBEP, KBPS, PV1-DBV, PV1-DBV(Active Plug), PV1-DBV

先導式 (Z)DBE, (Z)DBEE, DBE(M), DBE(M)E, PV2-DBV

比例減壓閥 3DREP, 3DREPE, (Z)DRE, ZDRE, ZDREE, DRE(M), DRE(M)E, 3DRE(M), 3DRE(M)E, PV2-DRV-3W

比例流量控制閥 

直動(dòng)式 QV1-4/2WV

直動(dòng)式二通型 2FRE

先導式 QV1-3WSRV, FES(E), 2/2-CPV, 2WRC(E), 3WRC(E)

規格 4WS.2E. 

2級方向伺服閥，機械或電子反饋

規格6，10和16 

安裝面按DIN 24340 A型 

控制流量的方向和大小 

適合對動(dòng)力、位置、速度和壓力進(jìn)行閉環(huán)控制 

第一級為噴嘴/擋板放大器 

干扭矩馬達 

反饋元件和閥芯的無(wú)磨損連接 

通過(guò)感應位置檢測器對主閥芯進(jìn)行位置感應，帶電反饋（規格10） 

集成電控器（OBE），用于4WSE2E型 

型號 4WSE3EE 

3級方向伺服閥，帶電反饋

規格16至32 

安裝面按DIN 24340 A型 

控制流量的方向和大小 

適合對動(dòng)力、位置、速度和壓力進(jìn)行閉環(huán)控制 

高靈敏鍍，極低滯環(huán)和零點(diǎn)漂移 

通過(guò)感應位置檢測器校對主閥芯進(jìn)行位置感應 

集成電控器（OBE） 

型號 4WS2EM...XN 

4通伺服閥

規格6 

元件系列2X 

最大工作壓力210/315 bar 

最大流量48 l/min 

應用根據防爆指示94/9/EC94/9/EC 

型號 4WS2EM...XN 

4通伺服閥

規格10 

元件系列5X 

最大工作壓力315bar 

最大流量180 l/min 

應用根據防爆指示94/9/EC 

環(huán)境溫度范圍–30 °C 至 +70 °C 

型號 4WS2EM...XH and 4WS2EM…VH1 

4通伺服閥

規格10 

元件系列5X 

最大工作壓力315 bar 

最大流量180 l/min 

應用根據防爆指示94/9/EC 

適用于美國FM許可"VH1" 

環(huán)境溫度范圍–20 °C至60 °C 

R900637136 DUESE 0,3 M8X1,0 X17,5 SW3 4WS2EM10-42/

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R900556374 VT 17010-1X/0 (MOD.VT-SR1/0 4WS2EM10)

R900555078 VTS 0616-1X/SR92/0/4WS2EM10

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R900871277 HUELSE 4WS2EM6-20/20D

R900871276 HUELSE 4WS2EM6-20/15D

R900871275 HUELSE 4WS2EM6-20/10D

R900871273 HUELSE 4WS2EM6-20/5D

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R900869839 BAUSATZ 4WS2EM 6-20/MOTOR 0,50

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R900863113 HUELSE 4WS2EM6-20/10E

R900863105 DECKEL 4WS2EM 6-2X/

R900828506 DICHTUNGSSATZ 4WS2EM6-1X/V

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R900827630 BAUSATZ 4WS2EM 10-50/ 45B11.K31 MOTOR

R900827624 BAUSATZ 4WS2EM 10-50/ 20B11.K31 MOTOR

R900810979 FILTER 6G6 X 13,7 4WS2EM 6 -11/

R900786427 4WS2EM10-5X/75B11T315K31CV-114

R900785537 4WS2EM10-5X/5B11ET315K31EV

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R900772317 4WS2EM10-5X/60B11T315K31CV-114

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R900767853 4WS2EM10-5X/30B11ET315K31EV-102

R900767011 4WS2EM10-5X/20B11ET315K8EV

R900763984 4WS2EM6-2X/20B11ET210K17EV

R900762206 4WS2EM10-4X/10B2T315K8AV

R900759923 4WS2EM10-4X/45B2T315K8SV-37

R900750594 4WS2EM10-5X/10B11ET315K8DV

R900750593 4WS2EM10-5X/10B11ET315K8BV

R900746191 4WS2EM6-2X/5B11ET315K17EV-102

R900733235 4WS2EM10-5X/90B0T210K31CV-112

R900733233 4WS2EM10-5X/60B0T210K31CV-112

R900731499 4WS2EM10-5X/10B11ET315K31DV

R900731498 4WS2EM10-5X/20B11ET315K31DV

R900731497 4WS2EM10-5X/20B11ET315K31BV

R900730908 4WS2EM10-5X/45B11ET315K31AV

R900730751 4WS2EM10-5X/20B11ET210K31EV

R900711077 4WS2EM10-5X/90B11T315K31CV-114

R900708915 4WS2EM10-5X/90B11T315K8DV

R900708421 4WS2EM10-4X/60B2T315K8DV

R900706727 4WS2EM6-2X/10B11ET315K17EV-102

R900705565 4WS2EM10-4X/10B2ET315K8AV

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R900435824 4WS2EM10-4X/20B2ET315K8DM

R900429587 4WS2EM10-4X/75B1T315K8AM

R900426862 4WS2EM10-4X/75B3T315CDV

R900421035 4WS2EM10-4X/75B2ET315K8DM

R900397092 4WS2EM10-4X/5B2ET315K8AM

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伺服閥

液控伺服閥主要是指電液伺服閥,它在接受電氣模擬信號后，相應輸出調制的流量和壓力。它既是電液轉換元件，也是功率放大元件，它能夠將小功率的微弱電氣輸入信號轉換為大功率的液壓能（流量和壓力）輸出。在電液伺服系統中，它將電氣部分與液壓部分連接起來(lái)，實(shí)現電液信號的轉換與液壓放大。電液伺服閥是電液伺服系統控制的核心。

伺服閥的介紹、定義：

液控伺服閥是在伺服系統中將電信號輸入轉換為功率較大的壓力或流量壓力信號輸出的執行元件。它是一種電液轉換和功率放大元件。伺服閥的靈敏度高，快速性好，能將很小的電信號（例如10毫安）轉換成很大的液壓功率（如幾十匹馬力以上），可以驅動(dòng)多種類(lèi)型的負載。過(guò)去人們曾把噴嘴檔板閥、射流管或滑閥伺服馬達等液壓放大裝置都列入伺服閥范圍內。20世紀70年代以來(lái)，伺服閥一般僅指電液伺服閥。

伺服閥的工作原理：

典型的伺服閥由永磁力矩馬達、噴嘴、檔板、閥芯、閥套和控制腔組成(見(jiàn)圖)。當輸入線(xiàn)圈通入電流時(shí)，檔板向右移動(dòng)，使右邊噴嘴的節流作用加強，流量減少，右側背壓上升；同時(shí)使左邊噴嘴節流作用減小，流量增加，左側背壓下降。閥芯兩端的作用力失去平衡, 閥芯遂向左移動(dòng)。高壓油從S流向C2，送到負載。負載回油通過(guò) C1流過(guò)回油口，進(jìn)入油箱。閥芯的位移量與力矩馬達的輸入電流成正比，作用在閥芯上的液壓力與彈簧力相平衡，因此在平衡狀態(tài)下力矩馬達的差動(dòng)電流與閥芯的位移成正比。如果輸入的電流反向，則流量也反向。 

伺服閥主要用在電氣液壓伺服系統中作為執行元件（見(jiàn)液壓伺服系統）。在伺服系統中，液壓執行機構同電氣及氣動(dòng)執行機構相比，具有快速性好、單位重量輸出功率大、傳動(dòng)平穩、抗干擾能力強等特點(diǎn)。另一方面，在伺服系統中傳遞信號和校正特性時(shí)多用電氣元件。因此，現代高性能的伺服系統也都采用電液方式，伺服閥就是這種系統的必需元件。

伺服閥結構比較復雜，造價(jià)高，對油的質(zhì)量和清潔度要求高。新型的伺服閥正試圖克服這些缺點(diǎn)，例如利用電致伸縮元件的伺服閥，使結構大為簡(jiǎn)化。另一個(gè)方向是研制特殊的工作油（如電氣粘性油）。這種工作油能在電磁的作用下改變粘性系數。利用這一性質(zhì)就可通過(guò)電信號直接控制油流。

應用領(lǐng)域：

電液伺服閥廣泛地應用于電液位置,速度,加速度,力伺服系統,以及伺服振動(dòng)發(fā)生器中.它具有體積小,結構緊湊,功率放大系數高,控制精度高,直線(xiàn)性好,死區小,靈敏度高,動(dòng)態(tài)性能好以及響應速度快等優(yōu)點(diǎn).