Gantry design help needed
Gantry design help needed
(OP)
We have a Gantry application that weight approx 18,000 lbs driven by two racks; one on either side of the gantry. That means that one rack & pinion needs to be able to drive 9,000 lbs. We are driving the gantry with two 4 HP AC servo motors; one on either side. The motors have a max RPM of 1350. We do not want to drive the pinion faster than 52 RPM (300 IPM rapid rate). We will therefore be gearing the speed down from the servo to the pinion. How do i design my rack and pinion accordingly to accomodate the criteria and also have a safety factor of about 1.5. Or is 1.5 necessary? Please point me in the right direction.





RE: Gantry design help needed
Regards
Dave
RE: Gantry design help needed
Resources to dig for on the internet: "Smart Motion Cheat Sheet" (PDF file) and/or gearmotor manufacturer engineering catalogs (SEW Eurodrive has a great engineering reference in PDF for free at their German electronic documenation site).
TygerDawg