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pantograph forklift

  • Thread starter Thread starter Blupower
  • Start date Start date
Thank you all very much.
I will try to contact the company posted by maxopus, for
evaluate their proposals.

Say hi.
 
imaginative:biggrin: but unlikely I would say. considering that by closed those cylinders would be about 3.5mt long.. and then other reasons. .

greetings
Marco:smile:
The length does not seem to me a red problem, a normal elevator cabin is high inside 2.2 mt, we store the compressor on the roof of the cabin that takes away another meter, they would protrude at the top of the right cabin 30 cm of "horn".

all thinking about making the pistons to a single vent, with 2-swire pistons you can do much shorter but it doesn't seem to me to be useful since the space is abundant


Another solution could be to hear a forklift manufacturer, maybe you can stick a cart's head to the wall.
 
The length does not seem to me a red problem, a normal elevator cabin is high inside 2.2 mt, we store the compressor on the roof of the cabin that takes away another meter, they would protrude at the top of the right cabin 30 cm of "horn".

all thinking about making the pistons to a single vent, with 2-swire pistons you can do much shorter but it doesn't seem to me to be useful since the space is abundant


Another solution could be to hear a forklift manufacturer, maybe you can stick a cart's head to the wall.
admitted and not allowed the road to be feasible, why do you want to use 4 hydraulic cylinders instead of 1 ?
you will have unnecessary costs (with one the job you do it great) and synchronization problems, it would suffice one of the 4 out synchronous to get the perfect enchantment:biggrin:

I think that the only road that can be reached is that of the electric elevator, you just have to find a company that builds them tailored to the customer and according to me around Italy there is definitely someone who does.

we talk about systems that are subject to strict standards and DIY in these areas is not advisable.
 
@blupower:
I designed and built a lift to reach a loft of a garage (h400 cm, lxl 100x70 cm) and works perfectly. is aesthetically very nice and is equipped with an electric and control (plc) that is able to manage calls on the floor and all the security of the case (anti crushing, emergency stop etc.)
If you send me a scheme (also pdf) with the precise measurements of the environment on which you would like to install the elevator, I can offer you some turnkey solution complete with costs and installation times.
I suggest that with a pantograph, given the measures you have at your disposal, you may not succeed as you would have high games, with the risk of impurity phenomena (unless you use a level mechanic).
the simplest and most economical solution would be to use a rope-driver (located in the recess in the floor), with high-referral carrucola (all elegantly shielded by polished stainless steel). If you are interested do not hesitate to contact me.
greetings
Max.
 
admitted and not allowed the road to be feasible, why do you want to use 4 hydraulic cylinders instead of 1 ?
you will have unnecessary costs (with one the job you do it great) and synchronization problems, it would suffice one of the 4 out synchronous to get the perfect enchantment:biggrin:
? I don't see how it's possible with a single piston, you should make room in the floor under the elevator.

in the solution that I had in mind instead the pistons themselves are the corners of the cabin

imagine a phone booth whose corners are the phosphors of 4 hydraulic pistons.

I don't know, I thought a hydraulic piston was able to carry out the driving work, especially considering the length of these pistons, in fact hydraulically I thought I would simply connect them all together without any valve between the various pistons (the same pressure in all rooms)
 
? I don't see how it's possible with a single piston, you should make room in the floor under the elevator.

in the solution that I had in mind instead the pistons themselves are the corners of the cabin

imagine a phone booth whose corners are the phosphors of 4 hydraulic pistons.

I don't know, I thought a hydraulic piston was able to carry out the driving work, especially considering the length of these pistons, in fact hydraulically I thought I would simply connect them all together without any valve between the various pistons (the same pressure in all rooms)
here is an image of a 1-piston lifting system, just put it posteriorly
 

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@blupower:
I designed and built a hoists
Max.
Be careful!
You're talking about an elevator for people.
if someone crushes a finger, a hand, a foot or head ( + ), you end up in jail.
all of us can design, build and use in our house a guillotine to slice the ham but, if we do it on behalf of third parties, we are responsible and persecutable.
not always the cute equipment is functional and safe and often the safety of the movement, while being there, does not completely follow the norms.
if a safety space of 500 mm is required and you leave 480, when the frittata will be made, in the pan you will be.

Bye.

p.s.
p.s.2: go to the reception to introduce you:biggrin::biggrin:.
 
Be careful!
You're talking about an elevator for people.
if someone crushes a finger, a hand, a foot or head ( + ), you end up in jail.
all of us can design, build and use in our house a guillotine to slice the ham but, if we do it on behalf of third parties, we are responsible and persecutable.
not always the cute equipment is functional and safe and often the safety of the movement, while being there, does not completely follow the norms.
if a safety space of 500 mm is required and you leave 480, when the frittata will be made, in the pan you will be.

Bye.

p.s.
p.s.2: go to the reception to introduce you:biggrin::biggrin:.
dear stefanobruno,
being the first time I write on a forum I collect your ps and apologize for the lack of elegance.
about the content of the message let me clarify a few things: if we are talking about a transport system of people, the consideration (more than correct) that you have done about the safety aspects should apply for all posts, firstly for those that propogonize the use of oleodynamic actuators on pantographs of that size (which in fact are real shears).
my poorly educated offer referred to a mountaineering, however provided with all the safety of the case and whose use is forbidden to people!

Hello and thank you,
Maximum
 
Maybe you already said.

lift in order with all norms, stroke 3600, hydraulic piston alesaggio 120 approximately with carrucola mounted sideally the cabin, cabin 1200x1000 approximately, flow 3 persons or 2+1 disabled, central dimesion 800x600x400 approximately installed also at distance of a few meters from the elevator compartment, cost approximately 10000 euros, excluding structure as predisposed glass vain, I do not know the cost of the possible structure in profiles
(It's not like I sell elevators, but that's what we installed from my mother-in-law)

I think it's very hard for an artisan to have the homologation for a similar machine.

Bye-bye.
 
dear stefanobruno
the call is necessary, since there is a regulation that would be good to read and to which we should stick.
in the forum we discuss theory and exchange advice and experiences, the commercial part is private, if it is the case.
in the specific case I felt to alert both you and blupower immediately, asking for help for a lifting machine for "a person therefore with a maximum range of 200 kg. " (I quote from the 3rd message ), it does not seem to me to propose a montacarichi.
electric or hydraulic that it is, when you lift a person the machine must be homologated, the DIY stays in your house and you do not propel it to anyone.
It is clear that I do not write this with intent polemics.
in other discussions we put to the sedan some dangerous solutions seen in supermarkets or on the mobile scales of access to the metro, of the series " also the professionals wrong ", it is better an alarm more than one hand less.

Bye.
 
.... in fact hydraulically I thought to connect them simply all together without any valve between the various pistons (the same pressure in all rooms)
sin that there are frictions to make synchronism impossible.
on the fact that we don't put any valves then, let's fly over.
 
? I don't see how it's possible with a single piston, you should make room in the floor under the elevator.

in the solution that I had in mind instead the pistons themselves are the corners of the cabin

imagine a phone booth whose corners are the phosphors of 4 hydraulic pistons.

I don't know, I thought a hydraulic piston was able to carry out the driving work, especially considering the length of these pistons, in fact hydraulically I thought I would simply connect them all together without any valve between the various pistons (the same pressure in all rooms)
If you manage to move them all 4 together, with maximum error of, say, 10 mm, I pay you a fish dinner in a restaurant you choose. to you, wife, children and even grandchildren if present... :finger::cool:
Obviously without flow dividers or other amenities, just as you wrote it and thought you....

When you don't make it, I'll tell you a little anecdote with only 3 cylinders to move in synchronous. . .
 
among other things also flow dividers have a certain error that if I don't remember badly is 4x1000 or 4mm every 1000, I don't know if I explain.
 
:eek: help you are frightening me...


:biggrin:
but if I send oil to one and use the other 3 as simple guides:biggrin:

Communque to further simplify the thing reminded me that even simpler than hydraulic pistons there are endless screws.

in practice they plant in the pavement 4 threaded bars diameter 50 mm and high up to where the elevator is to arrive, then the cabin is "arrampic" on these bars
 
:eek: help you are frightening me...
Who do you say that?
but you, as a webmaster, how do you deal with hydraulic cylinders and recirculation screws?

mtb, tell us the three-cylinder synchronous jack before the end of the year, please, regardless of the success of athlon's attempt.

:biggrin::tongue:
 
help you are frightening me...


:biggrin:
but if I send oil to one and use the other 3 as simple guides :biggrin
You'd be nailed earlier. .
try with an old dresser, those with drawers without ball guides, and try to close it by pushing on one side. . .
you will see a strange phenomenon of impurity, which is not by chance also called "cash effect". ...
Communque to further simplify the thing reminded me that even simpler than hydraulic pistons there are endless screws.

in practice they plant in the pavement 4 threaded bars diameter 50 mm and high up to where the elevator is to arrive, then the cabin is "arrampic" on these bars
Yeah, sure. you just have to have 4 motors perfectly synchronized between them:tongue:
which means, 4 engines equipped with their good encoder and 4 inverters that command them, of which one master and the other 3 to do as slave.. .
and that they are all of excellent quality, without Chinese. better if they are vector engines, made specifically to be controlled by inverter
You should hire a slave to take you on your shoulders from one floor to another...
mtb, tell us the three-cylinder synchronous jack before the end of the year, please, regardless of the success of athlon's attempt.
bha, you can not make names and dates, but there was some small object of the weight of some ten tons to be raised about half a meter.
was equipped with 3 hydraulic cylinders, each with its good temposonic installed and controlled by 3 proportional valves
Let's say that attempts to make it go up and down straight lasted a couple of months....

:eek:
 
Yeah, sure. you just have to have 4 motors perfectly synchronized between them:tongue:
which means, 4 engines equipped with their good encoder and 4 inverters that command them, of which one master and the other 3 to do as slave.. .
and that they are all of excellent quality, without Chinese. better if they are vector engines, made specifically to be controlled by inverter
You should hire a slave to take you on your shoulders from one floor to another...
Hey, you're forgetting the control unit in four inverters. Others like Synchronize? typically inverters have no synchronia input type clock.. .
bha, you can not make names and dates, but there was some small object of the weight of some ten tons to be raised about half a meter.
was equipped with 3 hydraulic cylinders, each with its good temposonic installed and controlled by 3 proportional valves
Let's say that attempts to make it go up and down straight lasted a couple of months....
:eek:
but don't you treat "objects" of the weight of some ton, which must go up and down about 80 times a minute, with a stroke of about a centimeter, which if they have a fading even less than the millimeter begin to...slip dangerously? :finger:
 
Hello, :smile: I wondered whether the end of this discussion was the design of a pantograph forklift or the search for a producer of such a type of pedane.
I believe that the end of the discussion is to find an optimal solution to the problem. They were told of crushes and cruel, and as far as some statements can be erroneous, they make the brain work, and this is good for the whole community:wink:
 
and to conclude ... I repeat that the optimal solution is an electric elevator made to measure, the rest are all hypotheses that at least have too high costs compared to what offers the market.
 

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