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當(dāng)前位置:德國EPRO現(xiàn)貨銷售中心>>德國BOSCH-REXROTH博世力士樂>>REXROTH方向伺服閥>> 力士樂電控制二級伺服方向閥4WS(E)2EM
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更新時(shí)間:2023-03-10 15:28:41瀏覽次數(shù):703次
聯(lián)系我時(shí),,請告知來自 化工儀器網(wǎng)REXROTH 4WSE2EM16-24/150B9ET315K9EV
德國進(jìn)口力士樂二級方向伺服閥,力士樂4WS(E)2EM... 型閥為電控制二級伺服方向閥,,孔型符合DIN 24 340 A16 形,。它們主要用於位置,力和速度控制閉環(huán),。這類閥由一個(gè)電機(jī)械轉(zhuǎn)換器(力矩馬達(dá))(1),,一個(gè)液壓放大器(噴嘴擋板原理)(2),一個(gè)閥套(第 2 級)內(nèi)的控制閥芯(3)組成,,閥芯通過一機(jī)械反饋連接到力矩馬達(dá)上,。
力士樂4WS(E)2EM16型四通方向伺服閥在力矩馬達(dá)的線圈(4)輸入一電信號,,通過電樞的*磁鐵(5)產(chǎn)生一個(gè)力,這個(gè)力連到扭矩管(6)上產(chǎn)生一個(gè)扭矩,,通過扭矩管(6)的連桿連接到擋板(7),,使其離開兩噴嘴(8)之間的中心位置,這樣就導(dǎo)致一個(gè)壓力差,,作用於控制閥芯的端面,。壓力差使得閥芯移動,由此壓力腔連到一執(zhí)行器上,,同時(shí)另一執(zhí)行器與回油腔連接,。控制閥芯通過一反饋彈簧(機(jī)械反饋)(9)連到噴嘴擋板和力矩馬達(dá)上,??刂崎y芯不斷改變位置,直到反饋彈簧的反饋扭矩和力矩馬達(dá)的電磁轉(zhuǎn)矩相平衡,,噴嘴擋板系統(tǒng)的壓差變?yōu)榱?。閥芯的行桯和通過先導(dǎo)控制閥的流量實(shí)現(xiàn)了閉環(huán)控制,與輸入電信號成正比,。必須注意到,,流量由閥的壓力差決定的。
外控電子放大器,,型號 4WS2EM 16-2X/...(另行訂貨)外控電子放大器(伺服放大器),,用於控制閥,將模擬輸入信號(控制量)放大,,這使得輸出控制電流能夠驅(qū)動閥,。內(nèi)置放大器,型號4WSE2EM16-2X/...和4WSE2ED16-2X/...電子放大器(10)用於模擬輸入信號的放大,,與閥相配套,。
它內(nèi)置於力矩馬達(dá)的蓋板內(nèi)。閥的零點(diǎn)位置通過一外部電位器進(jìn)行調(diào)節(jié),。
4WSE2ED 16-2X/...
這類閥除了通過反饋彈簧的機(jī)械控制,,還有閥芯位置電信號的採集和控制。閥芯位置通過一個(gè)感應(yīng)位移傳感器(11)獲得,。通過內(nèi)置放大器(10),,位移傳感器信號與給定值比較,。任何可能的控制偏差進(jìn)行電放大,,作為一控制信號傳到力矩馬達(dá)上。有了這個(gè)附加的電反饋,,由於電信號的閉環(huán)放大,,使得在小信號範(fàn)圍內(nèi)有可能比機(jī)械式有更高的動態(tài)值,。機(jī)械反饋保證了在電力供應(yīng)故障情況下閥芯位於零點(diǎn)。
這類閥只配置內(nèi)置放大器供貨,。閥的零點(diǎn)可以通過外部電位計(jì)進(jìn)行調(diào)節(jié),。
力士樂4WS(E)2EM16型四通二級方向伺服閥的全部型號如下所示:
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力士樂電液伺服閥
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力士樂4WS(E)2EM16型方向伺服閥的特征:用於閉環(huán)位置,力和速度的控制,;二級伺服閥帶機(jī)械或機(jī)械與電反饋,;*級是噴嘴擋板放大器 ;板式連接結(jié)構(gòu): 底板符合:DIN 24 340 A16 型,,端口 X 和 Y 參考樣本 RC 45 054(另行訂貨),;干扭矩馬達(dá),磁隙間壓力油無污染,;也可用作三通型閥,;耐磨損閥芯反饋元件;三種控制方式,; 控制:外控電路以歐洲制式或模塊式,, (另行訂貨),或閥內(nèi)置電子放大器,;閥和電子放大器已調(diào)整和測試,;控制油油泵,不用拆閥可進(jìn)行控制油內(nèi)外形式的供油,、 回油切換,;可互換控制閥套;*級的過濾可利用插頭外部進(jìn)行,。
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