Hi, I'm Professor REYNER, thanks for watching and sharing our class videos
Today we will be working on the assembly of a circuit more in electrohydraulic
we will analyze which are the working conditions in this case the
part of force we have an actuator double acting with a valve four days
three positions in this case we are using a return center to
tank or recirculation tank it is new in the electrical part
the way how to work the actuator going to be next when you press a
button s1 the stem of the following goes out and will be outside when pressing that 2
the cylinder rod returned to its starting position is why we
we are going to use two buttons for march 11 is going to be march and the
another one is going to be for and we are going to analyze both are read today from then on
part of strength we already have the assembly
in the strength part we already have to ride in the distributor valve the valve
pressure regulator that we have already regulated we haven't stopped explaining
a lot concerning this because I already we did in previous classes
I therefore consider it important that they visit it now the difference is going to be the valve
and this three-way valve three positions
now yes we already have them all something that we have here we have the valve that
we are going to be using which is a valve a hydraulic solenoid valve in
this case is four guides three positions which we are using
this center return to tank or a center attack recirculation is a
stable solenoid hydraulic valve because he has 20 from a left side
and the other right side then here already we have connected the output or the return to
tank and in the case of the line Pressure
let's look at the pressure line and the we have also connected in p which is
pressure we already have it interconnected now we just need to do the
connections to work which is to ive so in this case we are going to
start with the letter be if it has pressure we already know
that you have to get the expression
this is the connection see now we are going to connect
the work out what is the left side of it
hydraulic actuator
and we already have the hydraulic part now yes we have it complete now we are going to
see the part in the electrical part in where we then in this case we are going to
always use our push buttons start this panel for push button
march this panel are going to be the relays that we are going to be using
so here we already have fed the red line which is the positive line and
represents 24 volts and 0 volts we closed circuit here then now
let's start feeding our first button we enter the point of
connection 11 and we come out at the point of connection 14 and there we go directly to
coil main input to 1 we left the move 1 we closed 0
volts now we are going to use the second
button that in this case we are going to use the color blue we go into the
connection point 11 we go out at 14 and we go to the main entrance of the
coil to 2 what we are going to name as a k 2 relay and here we close the
circuit then we in our diagram we have named in this
component each and here would be our heat relay
now we are going to use a relay each an auxiliary of each and
we enter connection point 11 now for the for for the use of
we are going to leave at the point of connection 14 and that's the one we're going to
use directly to power the coil the left side sine the
which later we will close the 0 volts
now let's go slow let's see what that we have done this that is here in the
diagram we don't have the diagram such that I do that 1 very quickly with the
relay k 1 s 2 with heat relay now we use an auxiliary of each
to activate the semen today from 11 which is on the left side then we will
use a k 2 auxiliary for if this it is then what we have mounted
right now he is the auxiliary of the k 1 with the select today from the left side
now we're going to use a seriously dedicated to activate the selene today from the side
right of the solenoid then slowly truth calmly let's
activate now we're going to use a chaos helper now if we feed it
we enter the connection point good in this case this young man is using
let's see we will do this explanation and we are going to do it this way so that
see that all these auxiliaries work belong to relieve this relay that
we have named cado then you can occupy any of these
these auxiliary contact groups without However you always have to keep an order
so I have decided to use this one here
in 21 what follows important to take note that it should come out at 24 because
is a normally open contact that we will use to activate the cel in
today of the solenoid coil hydraulics on the right side so that
then we will close there at 0 volts and that in this way he works
so there we have it we already have it all montage
now what follows is to do the test then we will turn on both systems
of both the electrical part and the hydraulic part then there we have it
well the situation raises us that we are going to press that 1 and the
plunger is going to come out
it didn't work for us because there the plunger will come out we press that 2 and the
ebro will return then there we have the drive that we're going to do well
separately from the bear coil decades today
of the hydraulic actuator so as we can see in the
electrical part when we go now slowly slowly we can apply when
we press that one the coil is activated in each one who is that he governs what
is the plunger out activate it there we see it light up we release effort
it turns off now when pressing that 2 it is activated the desired coil and that's when the plunger
returns to its starting position that's how it works here it's simple it's
simple now let's work it outside we touch desire and it goes towards
indoors s1 s2 whenever we press that 1
to do the take on that one is going to activate on coil one and one
now we press that 2 is going to activate the solenoid valve in this case would be 1 and 2
redo you look at one of bonus 1 and 2 those are the lights that are not
indicating that the operation is the right time here we are
ending with this class video electro hydraulic drive a
double acting cylinder I hope it is help well thanks to all who are
watching these videos