I need to develop a mechanism - Where in I have a shaft that needs to rotate at different speeds. Lets say at a higher RPM clockwise and a lower RPM anti-clockwise. This shaft is attached to my machine, so I can't have 2 shafts. If i have 2 motors to the same shaft, I'm afraid there'll be feedback on the other motor, while one is running.
For example, like the image attached. Both the motors are connected to the lead screw. The motor (and the lead screw attached to it) on the left rotates at a higher rpm and this motion is used to lift my system. Similarly from the other side but to drop it quicker (the reason for the speed difference).
Any ideas? Thanks :)