產(chǎn)品詳情
力士樂壓力繼電器HED8OP-20/350K14KW
壓力繼電器適用方法
首先用于安全保護時，將壓力繼電器設(shè)置在夾緊液壓缸的一端，液壓泵啟動后，首先將工件夾緊，此時夾緊液壓缸的右腔壓力升高，當升高到壓力繼電器的調(diào)定值時，壓力繼電器動作，發(fā)出電信號使2YA通電，于是切削液壓缸進刀切削。在加工期間，壓力繼電器微動開關(guān)的常開觸點始終閉合。若工件沒有夾緊，壓力繼電器2斷開，于是2YA斷電，切削液壓缸立即停止進刀，從而避免工件未夾緊被切削而出事故。
其實用于控制執(zhí)行元件的順序動作時，液壓泵啟動后，首先2YA通電，液壓缸左腔進油，推動活塞方向右移。當碰到限位器(或死擋鐵)后，系統(tǒng)壓力升高，壓力繼電器發(fā)出電信號，使1YA通電，高壓油進入液壓缸的左腔，推動活塞右移。這時若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，其慢速運動速度由節(jié)流閥調(diào)節(jié)。
再次用于液壓泵卸荷時，壓力繼電器不是控制液壓泵停止轉(zhuǎn)動，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。
最后用于液壓泵的啟閉時，有兩個液壓泵，高壓小流量泵，低壓大流量泵。當活塞快速下降時，兩泵同時輸出壓力油。當液壓缸活塞桿抵住工件開始加壓時，壓力繼電器在壓力油作用下發(fā)出動作，觸動微動開關(guān)，將常閉觸點斷開，使液壓泵停轉(zhuǎn)。在加工過程中減慢液壓缸的速度，同時減少動力消耗。
力士樂壓力繼電器HED8OP-20/350K14KW
R901240595 HED8OA-2X/630XNZ14KSV
R901222334 HED8OA-2X=50K14AS
R900223611 HED8OA1X/100F050K14S
R900223609 HED8OA1X/100F060K14S
R900536027 HED8OA1X/100K14
R900218787 HED8OA1X/100K14/12
R900746085 HED8OA1X/100K14/12=CSA
R900736972 HED8OA1X/100K14=CSA
R900053690 HED8OA1X/100K14A
R900214879 HED8OA1X/100K14A/12
R900750155 HED8OA1X/100K14A=CSA
R900083066 HED8OA1X/100K14AS
R900211777 HED8OA1X/100K14AS/12
R900741712 HED8OA1X/100K14AS=CSA
R900209677 HED8OA1X/100K14ASV
R900227369 HED8OA1X/100K14AV
R900536063 HED8OA1X/100K14KS
R900246051 HED8OA1X/100K14KS=CSA
R900078015 HED8OA1X/100K14KSV
R900994141 HED8OA1X/100K14KSV/12
R900573428 HED8OA1X/100K14KW
R900744552 HED8OA1X/100K14KW/12
R900248864 HED8OA1X/100K14KW/12=CSA
R900573208 HED8OA1X/100K14KWV
R900539656 HED8OA1X/100K14S
R900222366 HED8OA1X/100K14S/12
R900739711 HED8OA1X/100K14S/12=CSA
R900230693 HED8OA1X/100K14S=CSA
R900078014 HED8OA1X/100K14SV
R900207488 HED8OA1X/100K14SV/12
R900059391 HED8OA1X/100K14V
R900220889 HED8OA1X/100K14V/12
R900249869 HED8OA1X/100K35KS
R900052853 HED8OA1X/100K6
R900052854 HED8OA1X/100K6A
R900987424 HED8OA1X/100K6KS
R900222911 HED8OA1X/100K6S
R900739233 HED8OA1X/100P070K14S
R900231395 HED8OA1X/100U050K14AS
R900054194 HED8OA1X/100Z14A
R900536599 HED8OA1X/200K14
R900204078 HED8OA1X/200K14/12
R900225129 HED8OA1X/200K14/12=CSA
