德國(guó)力士樂伺服閥4ws2em10-5x/30b11et315k31ev原理
力士樂德國(guó)產(chǎn)伺服閥，直接德國(guó)原廠訂貨，提供報(bào)關(guān)單，質(zhì)保一年。力士樂rexroth伺服閥本系列產(chǎn)品為我公司主打產(chǎn)品系列。
力士樂伺服閥，是電液轉(zhuǎn)換元件同時(shí)也是功率放大原件。是電液伺服系統(tǒng)控制的核心。
伺服閥，主要由6部分組成，分別是：永磁力矩馬達(dá)、噴嘴、檔板、閥芯、閥套以及控制腔。而它的工作原理就是當(dāng)連通電流的時(shí)候，擋板會(huì)向右移動(dòng)，使得其右邊的噴嘴節(jié)能作用變強(qiáng)，自然流量也會(huì)隨之減少。與此同時(shí)左邊噴嘴節(jié)流作用會(huì)減少，流量會(huì)隨之增加。這時(shí)候閥芯它兩端就會(huì)失去平衡，使得閥芯會(huì)向左移動(dòng)。然后閥芯它的位移量跟馬達(dá)的電流量是形成正比的，而在閥芯上面的液壓力跟彈簧力是剛好平衡的。
力士樂伺服閥由永磁力矩馬達(dá)、噴嘴、檔板、閥芯、閥套和控制腔組成。當(dāng)輸入線圈通入電流時(shí)，檔板向右移動(dòng)，使右邊噴嘴的節(jié)流作用加強(qiáng)，流量減少，右側(cè)背壓上升;同時(shí)使左邊噴嘴節(jié)流作用減小，流量增加，左側(cè)背壓下降。閥芯兩端的作用力失去平衡, 閥芯遂向左移動(dòng)。高壓油從流向，送到負(fù)載。負(fù)載回油通過流過回油口，進(jìn)入油箱。閥芯的位移量與力矩馬達(dá)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(dá)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。
力士樂伺服閥主要用在電氣液壓伺服系統(tǒng)中作為執(zhí)行元件(見液壓伺服系統(tǒng))。在伺服系統(tǒng)中，液壓執(zhí)行機(jī)構(gòu)同電氣及氣動(dòng)執(zhí)行機(jī)構(gòu)相比，具有快速性好、單位重量輸出功率大、傳動(dòng)平穩(wěn)、抗干擾能力強(qiáng)等特點(diǎn)。另一方面，在伺服系統(tǒng)中傳遞信號(hào)和校正特性時(shí)多用電氣元件。因此，現(xiàn)代高性能的伺服系統(tǒng)也都采用電液方式，伺服閥就是這種系統(tǒng)的必需元件。
力士樂部分型號(hào)如下：
r900584270 4ws2em10-4x/10b3et315k8av-7
r900583336 4ws2em10-4x/20b2et315k8em
r900582609 4ws2em10-4x/30b2et315k0dm-60
r900576452 4wse3ee16-1x/300b9et315k9em
r900568584 4ws2em10a-4x/45b3et315k8em
r900567828 4wse3ee16-1x/300b9-315k9em
r900565557 4wse2ed16-2x/100b8t315k9em
r900560820 4ws2em10-4x/45b2et315k8ev
r900560353 4ws2eb10-4x/10b2et70k8am
r900534062 4ws2eb10-4x/60b2e70k8dm
r900526719 4ws2em10-4x/45b2et315k8em
r900524418 4ws2em10-4x/2b2et315k8dm
r900522193 4ws2em16-2x/150b12t210k8em
r900520413 4ws2em10-4x/10b3et315k8am
r900513964 4wse3ee16-1x/200b8-315k9em
r900510650 4ws2em10-4x/20b2t315k8dm
r900508857 4ws2em10-4x/45b2et315k8bm
r900506180 4wse3ee16-1x/200b8-315k9ev
r900505743 4ws2eb10-4x/10b2et140k8am
r900501001 4ws2em10-4x/10b2et315k8bm-52
r900472884 4ws2em10-4x/30b3et315k8am-10
r900472869 4ws2em10-4x/30b2et315k8am
r900472730 4ws2em10-4x/5b3et315k8dm
r900470068 4ws2em10-4x/45b3et315k8dm
r900448828 4ws2em10-4x/30b2et315k0dm-53
r900448827 4ws2em10-4x/10b2et315k0dm-53
r900444077 4ws2em10-4x/30b2et315k8dv
r900443028 4ws2em10-4x/10b2et315k8dv
r900441328 4ws2em10-4x/60b1et315k8am
r901136727 4wse2em6-2x/15b9et210k17ev
r901132770 4wse2em10-5x/90b9-315k31dv
r901127976 4ws2em10-5x/20b11t210k31dv
r901125423 4wse3ee16-1x/300b8-315k9dv-122
r901122489 4wse3ee25-2x/400b8-315k9dv-122
r901120159 4ws2em10-5x/20b11t315k31cv-102
r901119977 4ws2em10-5x/30b11et210k31dv
r901119296 4ws2em10-5x/10b11t210k31cv-102
r901119176 4ws2em10-5x/60b11et210k31av
r901119156 4ws2em10-5x/75b11xhet210k31ev-100
r901117716 4wse3ee25-2x/400b8-315k9dv
r901116633 4ws2em10-5x/5b11xhet315k31ev-100
r901114562 4wse2ed10-5x/10b9t315k31dv
r901114271 4ws2em10-5x/45b11t315k8cv-104
r901113388 4ws2em10-5x/30b11et315k8dv
r901112369 4wse3ee16-1x/300b9et315k9dm-127
r901111502 4wse3ee25-2x/500b8et210k9ev-129
r901111253 4wse3ee25-2x/300b9t210k9ev
r901110839 4wse3ee16-1x/300b8-315k9dv
r901108852 4ws2em10-5x/60b11xhe315k31ev
r901108851 4ws2em10-5x/75b11xhe315k31ev
r901107316 4wse3ee16-1x/200b8-315k9ev-118
r901105059 4wse2ed10-5x/30b13et315k31ev
r901103913 4wse2ee10-4x/60b8et315k9ev-73
r901103896 4wse2ed10-5x/45b13t210k31ev
r901103115 4wse2em6-2x/5b8et210k17ev
r901102082 4wse3ee25-2x/500b8et210k9ev
r901101919 4ws2em10-5x/20b11xhet315k31ev-100
r901101469 4ws2em10-5x/75b11t315k8cv-104
r901100588 4wse2ed10-5x/20b9t210k31ev
r901098531 4wse3ee16-1x/150b9-210k9ev-118
r901098304 4ws2em10-5x/10b11xhet315k31ev-100
r901098041 4ws2em10-5x/30b11et315k31av
r901097271 4ws2em10-4x/60b1t315k8ev
r901097114 4wse3ee32-4x/500b9-315k9dv
r901096801 betriebsanleitung4ws2em10-5x/xh-102eu
r901096782 betriebsanleitung 4ws2em10-5x/xh-100eu
r901096781 4ws2em10-5x/30b11vh1et315k31dv-114
r901096114 4ws2em10-5x/5b11et315k31dv
r901095313 4ws2em10-5x/20b11t315k31ev
r901095275 4wse3ee32-4x/700b9et315k9ev
r901091476 4ws2em6-2x/25b11et315k17ev
r901091443 4ws2em10-5x/10b11t315k8av
r901086626 4ws2em10-5x/90b11xhet315k31ev
r901083564 4wse2em6-2x/15b8et315k17ev
r901082071 4wse3ee25-2x/400b8t210k9ev
r901081620 4ws2ee10-4x/20b2t70k8dv
r901079357 4ws2em10-4x/45b2et315k8ev-10
r901078195 4ws2em10-4x/30b1et315k8dv
r901077583 4ws2em10-5x/20b11et210k8dv
r901075694 4ws2em10-5x/30b11t315k31av
r901072949 4wse3ee16-1x/300b8t315k9ev
r901070225 4ws2em10-5x/20b11t315k8ev