Maybe if the information is more accurate like:
who and how to rotate
what you want to get
materials and forces at stake
tree scheme
... whatever you know or think you know
as it is a technical forum it would be useful and educational to try to use a technical language or at least specific of the field we talk about.
you help, you correct, but to do so you need common ground
then I have blades attached to the center in a tree then from this tree I have to connect 2 vertical trees if it was just one I would put a conical wheel and I would be affixed but with 2 I don't know how to do
I see 3 horizontal trees... I think we have to bring the good leonardo back to life!
Let's take it on the laugh... It's not my intention to tease anyone, I'd like to help with what I can and can do, but... I have limits!
Don't be afraid, we're waiting, the only stupid questions are those not asked!
We are here to help us all and not to judge, each from what you know and can, only so you learn!
I'm sorry I didn't see the design, I'm sure you can do it, but to do it and how to do it, you need to know the powers at stake, speeds, dimensions...
If it's a prototype for you, if it's a machine to put in production, the budget you have. . .
is a little more different from "2 vertical trees and a single horizontal" seems to me.
mechanically feasible, but as has been said, we must do well the calculations of forces to optimize the project
the design you posted is mechanically possible. as my colleagues told you, you must first determine the torque and rotation regime you need on users.
then it is necessary to move to the sizing of all gears and their verification. later it is necessary to make the calculation of duration of the bearings and the sizing of all the trees.
definitely need to know service factor, intermittent service, humid environment, dusty, hot, etc.
idea of budget, possibility to use components from trade at least for gears (purchase from stock) or custom size and therefore construction from specialists to single design.
for purchases in stock I would say that misumi is the best.