ATOS溢流閥*ATOS先導(dǎo)式溢流閥*ATOS直動(dòng)式溢流閥
ATOS先導(dǎo)型溢流閥 Pilot-operated Pressure Relief Valve
先導(dǎo)型溢流閥有多種結(jié)構(gòu)是一種典型的三節(jié)同心結(jié)構(gòu)先導(dǎo)型溢流閥,它由先導(dǎo)閥(Pilot Valve)和主閥(Main Valve)兩部分組成。錐式先導(dǎo)閥1、主閥芯上的阻尼孔(固定節(jié)流孔)5及調(diào)壓彈簧9一起構(gòu)成先導(dǎo)級(jí)半橋分壓式壓力負(fù)反饋控制,負(fù)責(zé)向主閥芯6的上腔提供經(jīng)過先導(dǎo)閥穩(wěn)壓后的主級(jí)指令壓力P2。主閥芯是主控回路的比較器,上端面作用有主閥芯的指令力P2A2,下端面作為主回路的測壓面,作用有反饋力P1A1,其合力可驅(qū)動(dòng)閥芯,調(diào)節(jié)溢流口的大小,zui后達(dá)到對(duì)進(jìn)口壓力P1進(jìn)行調(diào)壓和穩(wěn)壓的目的
[1]1—錐閥(Pilot Valve)(先導(dǎo)閥);2—錐閥座(Poppet Seat);3—閥蓋(Valve Cap);4—閥體(Valve Body);5—阻尼孔(Orifice);6—主閥芯(Main Spool);7—主閥座(Main Valve Seat);8—主閥彈簧(Main Spring);9—調(diào)壓(Adjustment Spring) (先導(dǎo)閥)彈簧;10—調(diào)節(jié)螺釘;11—調(diào)節(jié)手輪。
工作時(shí),液壓力同時(shí)作用于主閥芯及先導(dǎo)閥芯的測壓面上。當(dāng)先導(dǎo)閥1未打開時(shí),閥腔中油液沒有流動(dòng),作用在主閥芯6上下兩個(gè)方向的壓力相等,但因上端面的有效受壓面積A2大于下端面的有效受壓面積A1,主閥芯在合力的作用下處于zui下端位置,閥口關(guān)閉。當(dāng)進(jìn)油壓力增大到使先導(dǎo)閥打開時(shí),液流通過主閥芯上的阻尼孔5、先導(dǎo)閥1流回油箱。由于阻尼孔的阻尼作用,使主閥芯6所受到的上下兩個(gè)方向的液壓力不相等,主閥芯在壓差的作用下上移,打開閥口,實(shí)現(xiàn)溢流,并維持壓力基本穩(wěn)定。調(diào)節(jié)先導(dǎo)閥的調(diào)壓彈簧9,便可調(diào)整溢流壓力。
ATOS溢流閥*ATOS先導(dǎo)式溢流閥*ATOS直動(dòng)式溢流閥型號(hào)如下:
AGMZA-A-10/250/M AGMZA-A-10/250/PA-M AGMZA-A-10/80/PA-GK 21 AGMZA-A-10/80/PA-GK/24 21 AGMZA-A-20/250/M AGMZO-A-10/100 AGMZO-A-10/100/Y 20 AGMZO-A-10/210 AGMZO-A-10/210/18 AGMZO-A-10/210/E AGMZO-A-10/210/Y AGMZO-A-10/315 AGMZO-A-10/315/E 20 AGMZO-A-10/315/Y AGMZO-A-20/210 AGMZO-A-20/315 AGMZO-A-20/315/Y AGMZO-A-32/315 AGMZO-AE-10/210 10 AGMZO-AE-10/315 10 AGMZO-AE-20/315/Y 10 AGMZO-AE-32/315 AGMZO-TER-010/210/I AGMZO-TER-10/100/I AGMZO-TER-10/210 AGMZO-TER-10/315/Y 40 AGMZO-TER-20/210 AGMZO-TER-20/315/Y 40 AGMZO-TERS-PS-010/210/I 先導(dǎo)式減壓閥 AGRCZO-A-10/100/P 10 AGRCZO-A-10/210 10 AGRCZO-A-10/210/P 10 AGRCZO-A-10/315 10 AGRCZO-A-10/315/P 10 AGRCZO-A-20/210/R 10 AGRCZO-AE-10/210 10 AGRCZO-AE-10/50 10 AGRCZO-AE-20/210/P AGRCZO-TER-10/315 40 AGRZO-A-10/100/P AGRZO-A-10/210/P AGRZO-A-10/210/R AGRZO-A-10/315 AGRZO-A-20/210/18 AGMZO-TER-10/210/EI AGMZO-TER-10/210/I AGMZO-TER-10/315 40 AGMZO-TER-10/315/I 40/PE KZGO-A-031/210 20 KZGO-A-031/315 HZGO-A-031/100 31 HZGO-A-031/210 31 HZGO-A-031/315 31 HZGO-A-031/315/18 31 HZMO-A-030/210 40
ATOS直動(dòng)式減壓閥 RZGA-A-010/210/M 20 RZGA-A-010/32/M/7 20 RZGA-A-033/80/M/7 31 RZGO-A-010/100 20 RZGO-A-010/210 20 RZGO-A-033/100 RZGO-A-033/210 RZGO-A-033/315 31 RZGO-AE-010/100 10 RZGO-AE-033/210 10 RZGO-TER-010/100 RZGO-TER-010/100/I 40 RZGO-TER-010/210 40 RZGO-TER-010/210/I 40 RZGO-TER-010/32 40 RZGO-TER-033/100 RZGO-TER-033/315 40 直動(dòng)式溢流閥 RZMA-A-010/250/M 21 RZMA-A-030/180/M/7 21 RZMO-A-010/100 RZMO-A-010/210 RZMO-A-010/210/18 20 RZMO-A-010/315 RZMO-A-010/315/18 RZMO-A-010/50 RZMO-A-010/50/18 RZMO-A-030/100 20 RZMO-A-030/210 20 RZMO-A-030/210/18 RZMO-A-030/315 RZMO-AE-010/315 10 RZMO-AE-030/100 40 RZMO-P1-010/100/18/MC 20 RZMO-P1-010/210 RZMO-P3-010/100/AM1NSA RZMO-P3-010/100/I/AM1NSA RZMO-P3-010/210/I/AM1NS RZMO-P3-010/210/I/AMINSA RZMO-TER-010/100 40 RZMO-TER-010/315 40 RZMO-TER-010/315/I 40 RZMO-TER-030/210 40 RZMO-TER-030/315/I 40
DKZOR-TE-171-S5 40
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ATOS溢流閥*ATOS先導(dǎo)式溢流閥*ATOS直動(dòng)式溢流閥