Motor Selection
Motor Selection
(OP)
Greetings
Is there any formula to Calculate size of Electric Motor (HP RPM)????
Application:- To drive a structure which runs on steel wheel and steel track... there are total 6 wheels in that frame.
Flow of power will be
Motor>gear Box> Chain Drive >Gear > Wheel
Regards
Ind
Is there any formula to Calculate size of Electric Motor (HP RPM)????
Application:- To drive a structure which runs on steel wheel and steel track... there are total 6 wheels in that frame.
Flow of power will be
Motor>gear Box> Chain Drive >Gear > Wheel
Regards
Ind





RE: Motor Selection
Is this for a class?
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor Selection
actually we manufacture such machine.
Can you give better detail for this as we need to select a motor to drive this structure(which is carrying some weight)
we use magnesium bush for wheel
RE: Motor Selection
The above force will translate through the pulleys and gearbox to a torque and rpm.
Use the torque and rpm to pick the motor.
Don't forget to account for the losses.
The steps are simple but knowing what numbers to use can be tricky.
RE: Motor Selection
So F=ma
and Torque = F X r
R will be radius of wheel or what???
and HP = torque X rpm
but what about friction???
RE: Motor Selection
It's really
T = 5252 x HP
rpm
Then use your math skills to convert when you know parts of it from Lionel's information.
(naughty naughty Keith, you know you shouldn't toy with the Mechos like that).
"Dear future generations: Please accept our apologies. We were rolling drunk on petroleum."
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RE: Motor Selection
Dont' forget to account for the speed changes and efficiency of the different drivetrain parts (gearboxes and belt or chain drives).
RE: Motor Selection
one last thing radius used in torque formula will be radius of wheel???
RE: Motor Selection