what pneumatic piston do i take to lift 200 dan?

[Danlau]

Now I'm starting to have a little clearer ideas about what to do!
I think I'll do as mbt suggests, I call the pneumax, and I'll point out some dealers, who can also give me assistance.

the length of 200mm of the race, is that of the current hydraulic cylinder. But this does not take away that I can always move it to position, and take one with different race if it needs to be.

In the meantime I have also come to my head an alternative to the cylinders, use a hoist type motor, with crown system and pinion mounted on the lightning bolts.
What do you think about it?

 

[MBT]

Now I'm starting to have a little clearer ideas about what to do!
I think I'll do as mbt suggests, I call the pneumax, and I'll point out some dealers, who can also give me assistance.

the length of 200mm of the race, is that of the current hydraulic cylinder. But this does not take away that I can always move it to position, and take one with different race if it needs to be.

In the meantime I have also come to my head an alternative to the cylinders, use a hoist type motor, with crown system and pinion mounted on the lightning bolts.
What do you think about it?

If you want, there's the unimec or ele-fantini. . .
But be careful. They cost. more than a pneumatic cylinder. the start is not sweet, unless you give us an inverter (with other costs...) and besides you have an electrical component on board machine, with electric cables to protect and isolate etc etc etc. etc.
Think about it..

 

[PierArg]

and if you think of using electrical linear actuators?

I speak of those used to open the skylights.
http://www.siractuators.com/sir-1.htm

 

[Danlau]

and if you think of using electrical linear actuators?

I speak of those used to open the skylights.
http://www.siractuators.com/sir-1.htm

I have already thought of pierarg:frown:
I had previously informed myself for electrocylinders, a model of the rk rose+krieger gmbh, among other things in cc, I was shot 300 euros for him plus 200 euros for the transformer + VAT.
another model of the setec, three-phase with ball screw, shot me 950 + iva.
then after sti prices, seen on rs-online that between 50-100 euros some cylinder is located, I thought to inform me better.

 

[PierArg]

I have already thought of pierarg:frown:
I had previously informed myself for electrocylinders, a model of the rk rose+krieger gmbh, among other things in cc, I was shot 300 euros for him plus 200 euros for the transformer + VAT.
another model of the setec, three-phase with ball screw, shot me 950 + iva.
then after sti prices, seen on rs-online that between 50-100 euros some cylinder is located, I thought to inform me better.

: eek:: eek:: eek:
I thought with 200€ he was taking everything home.

However it is true that it costs you 500 euros but it is always the easiest solution as you have no problems related to the working environment.

 

[vdrummer]

Now I'm starting to have a little clearer ideas about what to do!
I think I'll do as mbt suggests, I call the pneumax, and I'll point out some dealers, who can also give me assistance.

the length of 200mm of the race, is that of the current hydraulic cylinder. But this does not take away that I can always move it to position, and take one with different race if it needs to be.

In the meantime I have also come to my head an alternative to the cylinders, use a hoist type motor, with crown system and pinion mounted on the lightning bolts.
What do you think about it?

Bye to all,

I think you should follow mbt tips.
the solution with the pencil could be valid but -justly - if you don't put on an inverter how do you manage the "straps"?
unless...demands:
If I made a "pound" with a "ballerino" then you could handle those tears better, right?
the problem is that we don't know how you're stuck with the encumbrance and then they're solutions to try live.
another thing but I throw it so... as a very safe but very economical you could use parallel lifting springs mounted on brackets, what do you think?

 

[Danlau]

: eek:: eek:: eek:
I thought with 200€ he was taking everything home.
However it is true that it costs you 500 euros but it is always the easiest solution as you have no problems related to the working environment.

I think I still contact someone to develop the project with cylinders, so that if I return between 100-200 euros I have a first solution available.

If you want, there's the unimec or ele-fantini. . .
But be careful. They cost. more than a pneumatic cylinder. the start is not sweet, unless you give us an inverter (with other costs...) and besides you have an electrical component on board machine, with electric cables to protect and isolate etc etc etc. etc.
Think about it..

Thanks mbt, but as you said, the idea of the spindles excludes it so as not to mess with the inverter and its costs.

Bye to all,
I think you should follow mbt tips.
the solution with the pencil could be valid but -justly - if you don't put on an inverter how do you manage the "straps"?
unless...demands:
If I made a "pound" with a "ballerino" then you could handle those tears better, right?
the problem is that we don't know how you're stuck with the encumbrance and then they're solutions to try live.
another thing but I throw it so... as a very safe but very economical you could use parallel lifting springs mounted on brackets, what do you think?

Unfortunately vdrummer not being an engineer, nor so much less a mechanic, I cannot afford particular experiments, otherwise I risk to mess up and not combine anything! the springs do not convince me sincerely, even because they should be beautiful big, and then you should also put push to keep them down when the car is lowered!


Meanwhile, I'm thinking about what I mentioned before:
a 0.55 kw screwdriver with 1 lap/min, to be able to lift by 30° the weight of 200 dan, which should more or less be equal to 2000 nm believe.
welding on 2 fulcres (the hinges) 2 pinions.
positioning more down the gear motor, with shaft passing from one fulcrum to another, and with other 2 pinions at the 2 ends of the shaft. Finally I put 2 chains for transmission from the 2 pinions of the tree to the 2 pinions welded on the lightning.

Could it work?

 

[vale61]

Things can work.
I think that for the couple there are no problems seen 1 lap/min and possible possibility of further transmission relationship.
Why don't you just pick up on one side?
but then chain guards? lubrication chain/pignons? electric safety (emergency)?
You do well on what's cheaper in the end.
Bye-bye.

 

[vdrummer]

I think I still contact someone to develop the project with cylinders, so that if I return between 100-200 euros I have a first solution available.


Thanks mbt, but as you said, the idea of the spindles excludes it so as not to mess with the inverter and its costs.


Unfortunately vdrummer not being an engineer, nor so much less a mechanic, I cannot afford particular experiments, otherwise I risk to mess up and not combine anything! the springs do not convince me sincerely, even because they should be beautiful big, and then you should also put push to keep them down when the car is lowered!


Meanwhile, I'm thinking about what I mentioned before:
a 0.55 kw screwdriver with 1 lap/min, to be able to lift by 30° the weight of 200 dan, which should more or less be equal to 2000 nm believe.
welding on 2 fulcres (the hinges) 2 pinions.
positioning more down the gear motor, with shaft passing from one fulcrum to another, and with other 2 pinions at the 2 ends of the shaft. Finally I put 2 chains for transmission from the 2 pinions of the tree to the 2 pinions welded on the lightning.

Could it work?

But what do you want/you can spend?

 

[Kaji]

excuse me if I allow myself to say also my not regarding components but geometry; I believe that first you should optimize the problem from the geometric point of view, i.e. I explain better you have to try to make the cylinder work in the best possible way i.e. increase as much as possible "his arm" in the sense of the distance of his axis from the zipper of the cassone.
of course the most critical moment is "in fact" ie when the cassone is horizontal because its centerpiece, assuming that the cassone can be considered a homogeneous object, is at the center of the same and therefore the arm of its weight force is distant about half of its length.
at this point I would choose the cylinder enough to "lift" the cassone not holding as mandatory data the race but only the final inclination of the cassone itself to cylinder "all open" or the points of the cylinder snodes are obligatory in the position of the drawing?

 

[reb_bl]

200 dan, which should be more or less equal to 2000 nm believe.

no, i newton [N] are the units of measure of forces, while newtonmetries [Nm] are the units of measurement of moments, or torque that you want to get 1 nm you have to apply a force of 1n to a lever arm of 1m.
I hope I've been clear:

 

[PierArg]

I am increasingly convinced that the solution of the electric cylinder is the best:
- zero maintenance
- ease of installation
- simple system
and above all:
- very little time lost to achieve it compared to other solutions.

Of course I'm considering the fact that time = money. If you have some free time to devote yourself to this activity and you don't stop driving then don't consider my observation.

 

[Danlau]

Things can work.
I think that for the couple there are no problems seen 1 lap/min and possible possibility of further transmission relationship.
Why don't you just pick up on one side?
but then chain guards? lubrication chain/pignons? electric safety (emergency)?
You do well on what's cheaper in the end.
Bye-bye.

I do not lift only on one side because the frame on which the weight rests is a tubular, and currently when lifting slopes slightly on the other side.
of course it will be to predict protection tanks and all the rest. the goal is to have the costs of the two alternatives to evaluate them. I prefer the motor to not be bound to the air system.

But what do you want/you can spend?

I'd like to try not to exceed 200, but I have to do the shopping, because I have to fix the car.

are the points of the cylinder snodes mandatory in the design position?

No, I can safely place them differently.

no, i newton [N] are the units of measure of forces, while newtonmetries [Nm] are the units of measurement of moments, or torque that you want to get 1 nm you have to apply a force of 1n to a lever arm of 1m.
I hope I've been clear:

but how do you understand how many nm needed to raise 200 dan? what other information I need and what would the formula be?

I am increasingly convinced that the solution of the electric cylinder is the best:
- zero maintenance
- ease of installation
- simple system
and above all:
- very little time lost to achieve it compared to other solutions.

Of course I'm considering the fact that time = money. If you have some free time to devote yourself to this activity and you don't stop driving then don't consider my observation.

the problem is not so much time, but to identify the best and most practical solution also for its management over time, with lower spending.
It is not a problem to spend 10% more for one solution than the other, but not to have to spend 50% more!

 

[reb_bl]

but how do you understand how many nm needed to raise 200 dan? what other information I need and what would the formula be?

the formula would be m=fxb where:
m is the time or couple that you want u.m. [Nm];
f is the force acting on the arm u.m. [N];
b is the length of the arm u.m.[m].

the couple to win will be the weight product (force) for the arm that utlile of force. in your case you need correct measures

 

[Danlau]

the formula would be m=fxb where:
m is the time or couple that you want u.m. [Nm];
f is the force acting on the arm u.m. [N];
b is the length of the arm u.m.[m].

the couple to win will be the weight product (force) for the arm that utlile of force. in your case you need correct measures

therefore making a practical example to better understand:

I have 1 tree 1 meter long, at the center of which there is a motor, and at the 2 ends of the shaft 2 pinions.
the rotating shaft must move a force of 1000 n.

then to calculate how many nms I need to do:

nm = 1000 n * 1 mt = 1000 nm.

Right? ? ?

 

[Fulvio Romano]

therefore making a practical example to better understand:

I have 1 tree 1 meter long, at the center of which there is a motor, and at the 2 ends of the shaft 2 pinions.
the rotating shaft must move a force of 1000 n.

then to calculate how many nms I need to do:

nm = 1000 n * 1 mt = 1000 nm.

Right? ? ?

better post a pattern... as you say no. the arm in this case is the radial one to the tree, not the length of the tree.

If the length of the shaft varies, the engine effort doesn't change, do you think?

 

[reb_bl]

better post a pattern... as you say no. the arm in this case is the radial one to the tree, not the length of the tree.

If the length of the shaft varies, the engine effort doesn't change, do you think?

quoto :finger:
what you mean by danlau is the flexion of the tree instead me and the good fulvio mean the torsion of the tree.

 

[Danlau]

better post a pattern... as you say no. the arm in this case is the radial one to the tree, not the length of the tree.

If the length of the shaft varies, the engine effort doesn't change, do you think?

quoto :finger:
what you mean by danlau is the flexion of the tree instead me and the good fulvio mean the torsion of the tree.

I have prepared a sketch of the example, you make me understand how to make the calculation.
I'll train you
Hello and thank you