1
HYDRAULICS
4
6
7
5
3
8
3
H
5
H
H
1 HYDRAULICS
Ovi ventili su namenjeni za upravljanje slo`enim funkcijama izvr{nih organa (smer kretanja i brzina) u programiranim ciklusima. P ri tome tome je izlazna izlazna veli~ina (protok) proporcionalna el. ulaznom signalu P roporcionalni razvodni ventil ventil u osnovi se sastoji sastoji iz glavnog razvodnog ventila i predupravljanog ventila za regulaciju regulaci ju pritiska Aktiviranje je proporcionalnim elektromagnetom elektromagnetom koji pretvara el. signal u njemu proporcionalnu silu za aktiviranje klipa. Za upravljanje magnetima isporu~uje se odgovaraju}i elektronski poja~ava~(naru~uje se se posebno) posebno) Opru`no centriranje bez oscilovanja oscilo vanja klipa Internacional Internac ionalne ne priklju~ne mere Vi{e Vi{e varijanti varijanti razvo| enja Na~in rada: u nultom polo`aju polo`a ju razvodnog ventila, klip (3) je centriran pomo}u dve opruge (4). Aktiviranjem elektromagneta (a) pomera se klip u desnu stranu proporcionalno el. ulaznom signalu. P ri tome tome se osloba| aju proto~ne povr{ine povr{ine na klipu (merne blende). [ to je ve}i hod, ve}i je popre~ni proto~ni presek, odnosno ve}i je i protok. Isklju~ Is klju~enjem el. magneta, upravlja~ki klip se pod dejstvom dejstvom sile opruge vra}a u nulti polo`aj polo` aj These These val valv ves are are appl applie ied d to to cont control rol complex lex func functtions ions of th the actuators (directional of movement and speed) in programmed hydraulic hydraulic system s ystems. s. The output output flow is proportional proportional to the electical elec tical input signal The propo roport rtio iona nall dire direct ctio iona nall valv alve cons consist ists s of of a main ain dire direct ctio iona nall valve and a pilot valve The pilot ilot valv valve e is is a pre pressu ssure re regu regula latted valv valve e wit with h pro prop port ortiona ionall solenoid it changes an el. input signal into a proportional force. For control control of the proportional solenoid solenoid an el. amplifier is to be supplied (separately to order) Spring centred centred without without spool ostilation os tilation International mounting dimensions Wide range of directional control Mode of operation: By energising the solenoid (2) moves spool (3). Pressure builds up in the line P according to the solenoid force i.e. i.e . according according to input input signal, until the pressure and spring force are equal. Higher solenoid force higher pressure longer spool stroke. s troke. Output flow rate rate to the actuator is changed
H
T
A
P
1. Ku}i{ K u}i{te te 2. Elektrom E lektromagnet agnet 3. Klip 4. Opruga
B
T
3
Simbol(varijanta): Symbol(variant):
H
POGLED I VIEW I
6 4
1 HYDRAULICS
Ovi ventili su namenjeni za upravljanje slo`enim funkcijama izvr{nih organa (smer kretanja i brzina) u programiranim ciklusima. P ri tome tome je izlazna izlazna veli~ina (protok) proporcionalna el. ulaznom signalu P roporcionalni razvodni ventil ventil u osnovi se sastoji sastoji iz glavnog razvodnog ventila i predupravljanog ventila za regulaciju regulaci ju pritiska Aktiviranje je proporcionalnim elektromagnetom elektromagnetom koji pretvara el. signal u njemu proporcionalnu silu za aktiviranje klipa. Za upravljanje magnetima isporu~uje se odgovaraju}i elektronski poja~ava~(naru~uje se se posebno) posebno) P riklju~ne mere prema DIN 24340 Konstruk Kons trukcija cija sa s a uzdu`no pomerljivim klipom Regulacija smera i veli~ine protoka Opru`no centr ce ntriranje iranje klipa Vi{e Vi{e varijanti varijanti razvo| enja Na~ Na~in rada: uklju~enjem magneta (3a) pomera se klip (2) na desno proporcionalno elektri~nom ulaznom signalu. P ri tom se osloba| aju proto~ne povr{ine povr{ine na klipu (merne (merne blende). [ to je ve}i hod, ve}i je proto~ni popre~ni presek presek odnosno odnos no ve}i je protok. Induktivni Induktivni dava~pri dava~ pri tome tome meri stvarni polo`aj klipa i saop{t sao p{tava ava ga putem elektri~nog signala s ignala poja~ava~u. Tu T u se se upore| uje stvarna stvarna vrednost vrednost (pozicija klipa) sa zadatom vredno{}u vredno{}u.. E ventulno ventulno odstupanje ove dve vrednosti {alje se el. signalom na magnet koji vr{i korekciju polo`aja klipa. Isklju~enjem el. magneta, klip se s e pod dejstvom dejs tvom sila opruga (5) i (6) vra}a u nulti nulti polo`aj polo` aj
These These val valv ves are are appl applie ied d to to cont control rol complex lex func functtions ions of th the actuators (directional of movement and speed) in programmed hydraulic hydraulic system s ystems. s. The output output flow is proportional proportional to the electical elec tical input signal The propo roport rtio iona nall dire direct ctio iona nall valv alve cons consist ists s of of a main ain dire direct ctio iona nall valve and a pilot valve The pilot ilot valv valve e is is a pre pressu ssure re regu regula latted valv valve e wit with h pro prop port ortiona ionall solenoid it changes an el. e l. input signal into a proportional proportional force. For control control of the proportional solenoid solenoid an el. amplifier is to be supplied supplied (separately to order) Mounting dimensions dimensions DIN 24340 24340 Design with axial movable spool and pilot operation This This valv alves with with a posit position ion cont control rol cap capabil abilit ity y meet meet the the most most demending requirements for accurasy, reproductibility, histeresis etc. Speed and direction regulation Spring centred spool Wide range of directional control
H
T
A
P
B
T
1. Ku}i{ K u}i{te te 2. Klip 3. Elektrom E lektromagnet agnet 4.Elektromagnet 4.E lektromagnet sa induktivnim dava~em hoda 5. Opruga 6. Opruga
3
POGLED I VIEW I
6 4
POGLED I VIEW I
1 HYDRAULICS
A
X
P T
Y
B
A
X
P T
Y
B
3
3 =45 l/min, l/min, for P
A (25 l/min, l/min, for B
T)
1 = O-ring 11,3
´
2,4
2 = O-ring 8,3
´
2,4
1 HYDRAULICS
These These val valv ves are are app applied lied to to cont control rol complex lex func functtions ions of the the actuators (directional of movement and speed) in programmed hydraulic hydraulic system s ystems. s. The output output flow is proportional proportional to the electical elec tical inputsignal The prop propor orttiona ionall dire direct ctio ion nal valv alve cons consist ists of of a main ain dire direct ctio iona nall valve and a pilot valve The pilo pilott valv valve e is a pre pressu ssure re regu regula latted valv valve e wit with h pro prop port ortiona ionall solenoid it changes an el. input signal into a proportional force. For control control of the proportional proportional solenoid solenoid an el. amplifier is to be supplied (separately to order) Spring centred with without out piston ostilation os tilation International mounting dimensions Wide range of directional control
H
X
P T
Y
B
A
X
P T
Y
B
Protok 100 l/min, pad pritiska 10 bar Flow 100 l/min, pressure drop 10 bar
Protok 150 l/min, pad pritiska 10 bar Flow 150 l/min, pressure drop 10 bar
3
*
R=
-=
1 HYDRAULICS
TEHNI^KE KARAKTERISTIKE KARAK TERISTIKE TECHNICAL DATA
OP[ OP[ TE GENERAL
Simbol Symbol
H
) r a b (
) n i m / l ( k o t w o l o r P F
p o a r k d s e i t r i r u p s s d e a r P P
1 za proporcionalni razvodni ventil 1788.21. ** 1 for proportional directional valve 1788.21. **
P odru~je regulacije regulac ije Regulating range
P odru~je pode{. Setting range
2 za proporcionalni razvodni ventil 1788.22.** 2 for proportional directional valve 1788.22. **
Protok (l/min) Flow
Struja (%) (%) Current
Upravljanje za proporc. razvodni ventil: Unutra{nje 2= Control for proport. directional valve: Internal 3=
1731. 20. * 0
H
1 = O-ring 8,3
´
2 = O-ring 11,3
2,4 ´
2,4
1 HYDRAULICS
H p o a r k d s i t e r i r u p s s d e a r P P
A A 1 ®
p o a r k d s i t e r i r u p s s d e a r P P
B B 1 ®
1® R P R R 1 P 1® ® R 1 P® P
R R 1® 1 R R® P®P1
Protok Flow
P1®P
Protok Flow
OZNA^AVANJ E DESIGNATION
Nazivni otvori: Nominal size:
A ® A 1
B ® B 1
1 = ND. 6 2 = ND. 10 0 = na otvorima A, B / on ports A, B
1 HYDRAULICS
H
3
e r k u a s s s i t i e r r P P
e r k u a s s s i t i e r r P P
Protok Flow (l/min)
Struja Current ) r a b (
(%) (%)
) r a b (
Struja Current
(%) (%)
Struja Current
(%) (%)
H
M10x1
M10x1
1 HYDRAULICS
Simbol Symbol
3 ) r a b (
300 300
. e { r e u d s s o e p r p k t a s s u i t j i r d P A
250 250 200 200 150 150 Struja (%) (%) Current
100 100 50
ND 10 0 20
40 60
100
Struja (%) (%) Current
Struja (%) (%) Current
Struja (%) (%) Current
160
200
300
M10x1
M10x1
