Motor Physics Question
Motor Physics Question
(OP)
If I need to hold and rotate a 120lb load using a motor (at the pivot point) from horizontal to vertical at a distance 10 inches from the pivot point, I would need a holding torque of 1200in-lbs right? Is it possible to increase the holding torque of a motor using gears? or do you just increase it's torque in motion? Can anyone suggest a motor for this application? Stepper or Servo?





RE: Motor Physics Question
You can use gears to increase the torque of a motor. In this case you might find a worm drive has some advantages.
Cheers
Greg Locock
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RE: Motor Physics Question
One option to avoid that is to counter balance the system so that the holding torque is minimized.
TTFN
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RE: Motor Physics Question
Motors are design to spin.
RE: Motor Physics Question
I know a stepper motor will hold its position. Will a DC motor really do this, by some means other than exactly matching the rotating moment? In either case, the motor is consuming power, and converting all of it to heat.
If you select a self locking worm drive, the system can be powered into its position, and left there with the power off. Generally, you need a ratio of something in excess of 40:1. The analysis that will get you the correct answer to this, will be explained in your machine design textbook.
RE: Motor Physics Question