As a mechanical novice I would like some advice on the following please…
I would like to create a position device that has an output ‘D’ shaft of 10mm which will travel through 180 deg in both directions. The shaft speed is required to be 1 r.p.m.
The maximum load on the shaft would be 20Nm
The drive has to be a 12v dc motor. the motor would be sized to meet the above requirements! A toothed belt would connect the motor to the worm wheel shaft, the belt drive ratio would be sized accordingly.
I was thinking of using a worm & worm wheel, my questions are:
Are there calculators available that would size the worm & worm wheel for a given motor speed and torque?
Are there standard worm & worm wheel sets available?
Any advice/guidance would be greatly appreciated.
Here is the calculator for worm gears that I’ve found online:
I haven’t used it, but I’ve used Autodesk Inventor in the past which is CAD software or 3D modelling and assembly. As I remember, there are standard sizes for worm gears. This software had a library with standard sizes of gears so you can put it in your assembly, while designing it.
If you know some mechanical engineer that is using 3D design software, he could help you design appropriate gears.
