advice on motor
October 18, 2010
This is off topic for the forum, I apologize, but you guys have the expertise and I am hoping will appreciate the challenge. so...
I need advice on a low speed/rpm high torque electric motor. it is for my, umm, 'robot oil press' to drive the auger. it looks a lot like the one on the homepage at piteba.com. right now it is hand-cranked, but holy hell, it takes a wicked amount of torque. I had it screwed down into a wooden butcher's table, and even then I had to screw the table to the floor, and then the screws ripped out of the table. so I am saying it takes a wicked amount of torque, right. I was wondering if I might get a small low speed/rpm high torque electric motor and get the local machine shop to rig me something to hook the motor shaft to the press auger. I am just wondering where to get the right motor. I think it ought to be about 10rpm, as that is about as fast as you could go by hand. for torque, I don't know, if it takes me practically jumping on the hand crank, does that mean it needs 150lbs torque? or am I butchering the concept of torque? I have seen some motors that are in the ballpark...a truck windshield wiper motor can do pretty low rpms but only ~40lbs torque. McMaster has 5rpm 50lb torque electric motors. But, unless I am totally butchering the concept of torque (which is quite possible), I am pretty sure that I need something significantly more powerful.
Thanks, and please have mercy.
p.s. robots are cool.