moving a mass for tests

[uguccione500]

I had confirmation that mirabilandia is not the only application of linear engines. In fact, they provide all measures for the most diverse applications, from the most insignificant to the largest such as the one mentioned above.
but we are trying to contact someone who tells us which model is the most suitable for bik application...
We will update you.. :smile:

 

[Pastorman75]

I have an idea:

if we move with a pneumatic piston and a turn multiplier?

For example:


- Linear guide with toothed belt and head pulleys
- 130mm diameter pulley (376.8 mm/turn involve 4m=9.79 rpm)
- cast on pulley a toothed wheel m2 z=16 (dp=32mm)
- 1000 mm running piston that pushes/tire rack m2 length 1050mm (pass 6,28 implies z=159.2 teeth at work)
- 159.2 teeth imply 9,95 turns, enough to make 4 m

Now:

4 mt/sec can thus be divided:

2m in 0.5 sec acceleration to
2m in 0.5 sec acceleration -a

from which you get to =4 m/s^2

== sync, corrected by elderman ==

as the piston has a stroke of 1/4 implies a force 4 times greater; 960 n on the piston

at 6 bars mean a surface of:

S=960/600=0.0016 m2
or
S=1600 mm

a piston with surface ø50 has s=1962.5 mm^2 which could be sufficient.

of course the piston can not work with acceleration to half run and -to for the remaining, however to have an idea....

Will it work? In my opinion, after a thousand cycles, everything is broken! !


Hi.

 

[uguccione500]

...and here we are at the turn... I didn't think of this sincerely...
therefore: it was thought to replace the motor with a model with double turns (currently we have a fanuc beta3/3000 3000 rpm) type the beta6/6000 (always fanuc).
In addition to the fastest engine, it is assumed to mount a necessarily epicycloidal reducer (always bonfiglioli) with a lower reduction ratio (type 1:3) compared to the currently broken solution.
this allows you to have a double output speed at equal incoming speed and therefore reducing the speed of the motor inevitably the force impressed on the tab of the motor shaft during acceleration will be less.
according to my sick mind:wink: and if nothing has been left, by force of things everything will be used less in time.
to get to the optimum you can think of a change of linear guide with a recirculation of balls (currently the guide is obtained with simple metal bearings and wheels) to have mechanical reliability clearly superior to the current.
not bad also the hypothesis of inserting an acceleration ramp into the amplifier which (as little as possible) would lead to a further extension of the life of the mechanical parts.
who confirms or denies my hypothesis? What do you think? What can I have left on the street that can break the famous "egg in the basket"? ? ?
thanks again to all those who have spoken here and to those who will still live. :biggrin: