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德國(guó)力士樂(lè)REXROTH壓力開(kāi)關(guān)HED8OA-2X/200K14

力士樂(lè)壓力繼電器HED8OA2X/100K14A

R901102706 HED 8 OA-2X/100K14 
R901106257 HED 8 OA-2X/100K14/12 
R901106259 HED 8 OA-2X/100K14A 
R901135255 HED 8 OA-2X/100K14A/12 
R901106262 HED 8 OA-2X/100K14AS 
R901111210 HED 8 OA-2X/100K14AS/12 
R901106263 HED 8 OA-2X/100K14ASV 
R901141703 HED 8 OA-2X/100K14ASV/12 
R901108526 HED 8 OA-2X/100K14AV 
R901095551 HED 8 OA-2X/100K14KS 
R901145180 HED 8 OA-2X/100K14KSV 
R901094159 HED 8 OA-2X/100K14KW 
R901153040 HED 8 OA-2X/100K14KWV 
R901102711 HED 8 OA-2X/100K14S 
R901111201 HED 8 OA-2X/100K14S/12 
R901111200 HED 8 OA-2X/100K14SV 
R901107367 HED 8 OA-2X/100K14V 
R901126668 HED 8 OA-2X/100K14V/12 
R901126696 HED 8 OA-2X/100K35KS 
R901127461 HED 8 OA-2X/100K35S 
R901238187 HED 8 OA-2X/100P030K14AS 
R901123283 HED 8 OA-2X/100P040K14S 
R901135061 HED 8 OA-2X/100P070K14S 
R901137611 HED 8 OA-2X/100XNZ14A 
R901202310 HED 8 OA-2X/100XNZ14AS 
R901136396 HED 8 OA-2X/100XNZ14S 
R901102708 HED 8 OA-2X/200K14 
R901106512 HED 8 OA-2X/200K14/12 
R901107094 HED 8 OA-2X/200K14A 
R901111198 HED 8 OA-2X/200K14A/12 
R901106452 HED 8 OA-2X/200K14AS 
R901108523 HED 8 OA-2X/200K14AS/12 
R901108522 HED 8 OA-2X/200K14ASV 
R901141051 HED 8 OA-2X/200K14AV 
R901107126 HED 8 OA-2X/200K14KS 
R901111197 HED 8 OA-2X/200K14KSV 
R901106448 HED 8 OA-2X/200K14KW 
R901150699 HED 8 OA-2X/200K14KW/12 
R901108245 HED 8 OA-2X/200K14KWV 
R901102727 HED 8 OA-2X/200K14S 
R901202306 HED 8 OA-2X/200K14S/12 
R901107805 HED 8 OA-2X/200K14SV 
R901110456 HED 8 OA-2X/200K14V 
R901211753 HED 8 OA-2X/200K35A 
R901171100 HED 8 OA-2X/200K35S 
R901232897 HED 8 OA-2X/200P120K14AS 
R901213491 HED 8 OA-2X/200P130K14S 
R901214160 HED 8 OA-2X/200P180K14S 
R901107923 HED 8 OA-2X/200U120K14S 
R901107393 HED 8 OA-2X/200U165K14S 
R901108521 HED 8 OA-2X/200U170K14S 
R901107318 HED 8 OA-2X/200U180K14S 
R901133293 HED 8 OA-2X/200XNZ14 
R901202314 HED 8 OA-2X/200XNZ14AS 
R901137946 HED 8 OA-2X/200XNZ14S 
R901131246 HED 8 OA-2X/350F105K14S 
R901171875 HED 8 OA-2X/350F80K14S 
R901102710 HED 8 OA-2X/350K14 
R901107091 HED 8 OA-2X/350K14/12 
R901106455 HED 8 OA-2X/350K14A 
R901108518 HED 8 OA-2X/350K14A/12 
R901102722 HED 8 OA-2X/350K14AS 
R901111192 HED 8 OA-2X/350K14AS/12 
R901108517 HED 8 OA-2X/350K14ASV 
R901110453 HED 8 OA-2X/350K14ASV/12 
R901110452 HED 8 OA-2X/350K14AV 
R901107087 HED 8 OA-2X/350K14KS 
R901134010 HED 8 OA-2X/350K14KSV 
R901102716 HED 8 OA-2X/350K14KW 
R901107332 HED 8 OA-2X/350K14KW/12 
R901110450 HED 8 OA-2X/350K14KWV 
R901102778 HED 8 OA-2X/350K14S 
R901108009 HED 8 OA-2X/350K14S/12 
R901107922 HED 8 OA-2X/350K14SV 
R901186318 HED 8 OA-2X/350K14SV/12 
R901107796 HED 8 OA-2X/350K14V 
R901110447 HED 8 OA-2X/350K14V/12 
R901125561 HED 8 OA-2X/350K35 
R901127471 HED 8 OA-2X/350K35A 
R901127477 HED 8 OA-2X/350K35AS 
R901272251 HED 8 OA-2X/350K35KS 
R901127474 HED 8 OA-2X/350K35S 
R901181469 HED 8 OA-2X/350P160K14S 
R901245027 HED 8 OA-2X/350P250K14S 
R901217016 HED 8 OA-2X/350P270K14S 
R901171883 HED 8 OA-2X/350U110K14S 
 

德國(guó)力士樂(lè)REXROTH壓力開(kāi)關(guān)HED8OA-2X/200K14

R901168129 HED 8 OA-2X/350U210K14S 
R901126233 HED 8 OA-2X/350XNZ14S 
R901101698 HED 8 OA-2X/50K14 
R901107793 HED 8 OA-2X/50K14/12 
R901106507 HED 8 OA-2X/50K14A 
R901110444 HED 8 OA-2X/50K14A/12 
R901106499 HED 8 OA-2X/50K14AS 
R901110443 HED 8 OA-2X/50K14AS/12 
R901110166 HED 8 OA-2X/50K14ASV 
R901110164 HED 8 OA-2X/50K14AV 
R901110163 HED 8 OA-2X/50K14AV/12 
R901102702 HED 8 OA-2X/50K14KS 
R901110160 HED 8 OA-2X/50K14KSV 
R901102754 HED 8 OA-2X/50K14KW 
R901108514 HED 8 OA-2X/50K14KW/12 
R901110155 HED 8 OA-2X/50K14KWV 
R901102704 HED 8 OA-2X/50K14S 
R901155751 HED 8 OA-2X/50K14S/12 
R901110149 HED 8 OA-2X/50K14SV 
R901110147 HED 8 OA-2X/50K14SV/12 
R901117070 HED 8 OA-2X/50K14V 
R901109543 HED 8 OA-2X/50K14V/12 
R901173249 HED 8 OA-2X/50K35 
R901155571 HED 8 OA-2X/50K35S 
R901213487 HED 8 OA-2X/50P015K14S 
R901244472 HED 8 OA-2X/50R020K14S 
R901126235 HED 8 OA-2X/50XNZ14 
R901166176 HED 8 OA-2X/50XNZ14AV 
R901160979 HED 8 OA-2X/50XNZ14KW 
R901151839 HED 8 OA-2X/50XNZ14S 

使用方法

首先用于安全保護(hù)時(shí)，將壓力繼電器設(shè)置在夾緊液壓缸的一端，液壓泵啟動(dòng)后，首先將工件夾緊

，此時(shí)夾緊液壓缸的右腔壓力升高，當(dāng)升高到壓力繼電器的調(diào)定值時(shí)，壓力繼電器動(dòng)作，發(fā)出電

信號(hào)使2YA通電，于是切削液壓缸進(jìn)刀切削。在加工期間，壓力繼電器微動(dòng)開(kāi)關(guān)的常開(kāi)觸點(diǎn)始終閉

合。若工件沒(méi)有夾緊，壓力繼電器2斷開(kāi)，于是2YA斷電，切削液壓缸立即停止進(jìn)刀，從而避免工

件未夾緊被切削而出事故。[1] 
其實(shí)用于控制執(zhí)行元件的順序動(dòng)作時(shí)，液壓泵啟動(dòng)后，首先2YA通電，液壓缸左腔進(jìn)油，推動(dòng)活塞

方向右移。當(dāng)碰到限位器(或死擋鐵)后，系統(tǒng)壓力升高，壓力繼電器發(fā)出電信號(hào)，使1YA通電，高

壓油進(jìn)入液壓缸的左腔，推動(dòng)活塞右移。這時(shí)若3YA也通電，液壓缸的活塞快速右移;若3YA斷電，

則液壓缸的活塞慢速右移，其慢速運(yùn)動(dòng)速度由節(jié)流閥調(diào)節(jié)。
再次用于液壓泵卸荷時(shí)，壓力繼電器不是控制液壓泵停止轉(zhuǎn)動(dòng)，而是控制二位二通電磁閥，將液

壓泵5輸出的壓力油流回油箱，使其卸荷。
zui后用于液壓泵的啟閉時(shí)，有兩個(gè)液壓泵，高壓小流量泵，低壓大流量泵。當(dāng)活塞快速下降時(shí)，

兩泵同時(shí)輸出壓力油。當(dāng)液壓缸活塞桿抵住工件開(kāi)始加壓時(shí)，壓力繼電器在壓力油作用下發(fā)出動(dòng)

作，觸動(dòng)微動(dòng)開(kāi)關(guān)，將常閉觸點(diǎn)斷開(kāi)，使液壓泵停轉(zhuǎn)。在加工過(guò)程中減慢液壓缸的速度，同時(shí)減

少動(dòng)力消耗。