mild

[PierArg]

the transmission system is a design choice based on a variety of data and considerations that we do not have on a forum.
you should make a table with up: cost, bulk, stiffness, lifecicle, etc. written for each transmission system and then from comparison should result in the choice of the most suitable transmission type. It also considers reliability, for example a transmission through screw-modrevite is very reliable, a transmission by rubberized-asphalt wheel is unreliable.

the power of the engine depends on the time within which you want to complete the lifting.

I add that if you have to raise people I would say that the weight of reliability is weighty compared to other factors

 

[MBT]

but we of nuzoo robotics like to be innovators of service robotics

I understand. . .
is biondina in front of the board, in your site, part of innovation or service??? :finger::biggrin:

 

[MBT]

so I try to reveal the mystery:
that scheme I put you down really is overturned:
is 1 of 4 "suspensions" for a robotic trolley that can lift high loads (to facilitate man), to transport furniture, washing machines etc....in reduced spaces.

Now I understand a little more...
question... Have you ever seen the forklift bridges that are used to lift cars in the workshop? lift 3 tons and once closed they have very small dimensions (about 150 mm)
work with hydraulic cylinder or pneumatic cylinder, but nothing dares to use a pencil with trapeze screw or a linear axis.
I can't give you sites (proxy case) but if you're looking for a little bit you'll surely find ravails or other

the transmission system is a design choice based on a variety of data and considerations that we do not have on a forum.
you should make a table with up: cost, bulk, stiffness, lifecicle, etc. written for each transmission system and then from comparison should result in the choice of the most suitable transmission type. It also considers reliability, for example a transmission through screw-modrevite is very reliable, a transmission by rubberized-asphalt wheel is unreliable.

the right considerations!
I'm sorry.

the power of the engine depends on the time within which you want to complete the lifting.

Very true. As I have written in another discussion, shortening the time available means increasing considerably the necessary power!

 

[AlberTz]

I had seen them and taken seriously into consideration.
there is just one "defect": from closed occupy a surface too wide.
therefore as an alternative you could move on a jack-type structure of the cars, perhaps with a vertical extension/horizontal closure fairly high and properly studied.

at that point I move with the electric and endless screw, with loads to lift up high, and low motion.. .