Ovi ventili su namenjeni za upravljanje slo`enim funkcijama
izvr{nih organa (smer kretanja i brzina) u programiranim ciklusima.
Pri tome je izlazna veli~ina (protok) proporcionalna el. ulaznom
signalu Proporcionalni razvodni ventil u osnovi se sastoji iz
glavnog razvodnog ventila i predupravljanog ventila za regulaciju
pritiskaAktiviranje je proporcionalnim 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 posebno)Opru`no centriranje bez
oscilovanja klipaInternacionalne priklju~ne mereVi{e varijanti
razvo|enjaNa~in rada: u nultom polo`aju razvodnog ventila, klip (3)
je centriran pomo}u dve opruge (4). Aktiviranjem elektromagneta (a)
pomera se klip u desnu stranu proporcionalno el. ulaznom signalu.
Pri tome se osloba|aju proto~ne 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~enjem el. magneta, upravlja~ki klip se pod
dejstvom sile opruge vra}a u nulti polo`aj
1. Ku}i{te2. Elektromagnet3. Klip4. Opruga
These valves are applied to control complex functions of the
actuators (directional of movement and speed) in programmed
hydraulic systems. The output flow is proportional to the electical
input signalThe proportional directional valve consists of a main
directional valve and a pilot valveThe pilot valve is a pressure
regulated valve with proportional solenoid it changes an el. input
signal into a proportional force. For control of the proportional
solenoid an el. amplifier is to be supplied (separately to
order)Spring centred without spool ostilation International
mounting dimensions Wide range of directional controlMode of
operation: By energising the solenoid (2) moves spool (3). Pressure
builds up in the line P according to the solenoid force i.e.
according to input signal, until the pressure and spring force are
equal. Higher solenoid force higher pressure lo-nger spool stroke.
Output flow rate to the actuator is changed
T A P B T
3
H
Simbol(varijanta): Symbol(variant):
POGLED IVIEW I
46
1
H
HYDRAULICS
Ovi ventili su namenjeni za upravljanje slo`enim funkcijama
izvr{nih organa (smer kretanja i brzina) u programiranim ciklusima.
Pri tome je izlazna veli~ina (protok) proporcionalna el. ulaznom
signalu Proporcionalni razvodni ventil u osnovi se sastoji iz
glavnog razvodnog ventila i predupravljanog ventila za regulaciju
pritiskaAktiviranje je proporcionalnim 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 posebno)Priklju~ne mere prema
DIN 24340Konstrukcija sa uzdu`no pomerljivim klipomRegulacija smera
i veli~ine protokaOpru`no centriranje klipaVi{e varijanti
razvo|enjaNa~in rada: uklju~enjem magneta (3a) pomera se klip (2)
na desno proporcionalno elektri~nom ulaznom signalu. Pri tom se
osloba|aju proto~ne povr{ine na klipu (merne blende). [to je ve}i
hod, ve}i je proto~ni popre~ni presek odnosno ve}i je protok.
Induktivni dava~ pri tome meri stvarni polo`aj klipa i saop{tava ga
putem elektri~nog signala poja~ava~u. Tu se upore|uje stvarna
vrednost (pozicija klipa) sa zadatom vredno{}u. Eventulno
odstupanje ove dve vrednosti {alje se el. signalom na magnet koji
vr{i korekciju polo`aja klipa. Isklju~enjem el. magneta, klip se
pod dejstvom sila opruga (5) i (6) vra}a u nulti polo`aj
1. Ku}i{te2. Klip3. Elektromagnet4.Elektromagnet sa induktivnim
dava~em hoda5. Opruga6. Opruga
These valves are applied to control complex functions of the
actuators (directional of movement and speed) in programmed
hydraulic systems. The output flow is proportional to the electical
input signalThe proportional directional valve consists of a main
directional valve and a pilot valveThe pilot valve is a pressure
regulated valve with proportional solenoid it changes an el. input
signal into a proportional force.For control of the proportional
solenoid an el. amplifier is to be supplied (separately to order)
Mounting dimensions DIN 24340 Design with axial movable spool and
pilot operationThis valves with a position control capability meet
the most demending requirements for accurasy, reproductibility,
histeresis etc.Speed and direction regulationSpring centred
spoolWide range of directional control
T A P B T
3
POGLED IVIEW I
POGLED IVIEW I
46
1
HYDRAULICS
A X P T Y B A X P T Y B
3
3 = 45 l/min, for P A (25 l/min, for B T)
1 = O-ring 11,3 2,4 2 = O-ring 8,3 2,4
1
H
HYDRAULICS
X P T Y B A X P T Y B
These valves are applied to control complex functions of the
actuators (directional of movement and speed) in programmed
hydraulic systems. The output flow is proportional to the electical
input signalThe proportional directional valve consists of a main
directional valve and a pilot valveThe pilot valve is a pressure
regulated valve with proportional solenoid it changes an el. input
signal into a proportional force. For control of the proportional
solenoid an el. amplifier is to be supplied (separately to
order)Spring centred without piston ostilation International
mounting dimensions Wide range of directional control
Protok 100 l/min, pad pritiska 10 barFlow 100 l/min, pressure
drop 10 bar
Protok 150 l/min, pad pritiska 10 barFlow 150 l/min, pressure
drop 10 bar
