Electric? - Page 3

cooperino · #21 02-12-2019, 06:04 PM

Quote:

Originally Posted by cheesedawg82

I'd imagine you'd find out in the first 15 minutes or so.

You could then fill the box with ice or snow, keeping the motor cold. Having a little access door to an icebox right there at arms reach could have other uses too.

This does not sound like a good solution.. I doubt the motor makes much heat anyway. The winding itself is sealed in those types of units. Maybe some air vents could be added to allow for air flow

cheesedawg82 · #22 02-12-2019, 06:22 PM

Quote:

Originally Posted by cooperino

This does not sound like a good solution.. I doubt the motor makes much heat anyway. The winding itself is sealed in those types of units. Maybe some air vents could be added to allow for air flow

You're obviously overlooking the potential for beer storage here.

sawdustdad · #23 02-12-2019, 07:24 PM

Quote:

Originally Posted by cooperino

This does not sound like a good solution.. I doubt the motor makes much heat anyway. The winding itself is sealed in those types of units. Maybe some air vents could be added to allow for air flow

I think you underestimate the heat generated. It's a physically small motor. At 36 volts, it's drawing over 40 amps. Heat dissipation would be about 400 watts. Not an insignificant amount of heat. The motor will overheat unless a heat sink is created for it. Remember, it was designed to be run underwater.

darkminion_17 · #24 02-12-2019, 07:26 PM

As far as I know none of the elec-traks were hydro.I have seen a few of those GE ones around here, almost bought one, but the batteries are pricey.
Sound like a good project so keep us posted on your progress.

cheesedawg82 · #25 02-12-2019, 07:38 PM

Quote:

Originally Posted by darkminion_17

As far as I know none of the elec-traks were hydro.I have seen a few of those GE ones around here, almost bought one, but the batteries are pricey.
Sound like a good project so keep us posted on your progress.

The progress is all in my head so far, and it's probably going to stay that way for a while, at least until I get a few other projects together. I'd love to see more ideas though, and if someone would like to hijack the thread and build the tractor, that would be awesome.

cooperino · #26 02-12-2019, 07:43 PM

Quote:

Originally Posted by sawdustdad

I think you underestimate the heat generated. It's a physically small motor. At 36 volts, it's drawing over 40 amps. Heat dissipation would be about 400 watts. Not an insignificant amount of heat. The motor will overheat unless a heat sink is created for it. Remember, it was designed to be run underwater.

Yeah, I get that. Thats why I said rather than packing in snow or ice. Maybe some vents could be added to the case. Trolling motors I have seen are sealed so water does not get in the case. The surrounding water keeps it cool. I was suggesting vents be cut into the case and I should have added that a fan be attached to shaft to draw air past the case. All above water electric motors I have ever seen have some type of cooling fan and case ventilation. I have added ventilation to motors But I never packed one in snow.

cheesedawg82 · #27 02-12-2019, 08:04 PM

Quote:

Originally Posted by cooperino

Yeah, I get that. Thats why I said rather than packing in snow or ice. Maybe some vents could be added to the case. Trolling motors I have seen are sealed so water does not get in the case. The surrounding water keeps it cool. I was suggesting vents be cut into the case and I should have added that a fan be attached to shaft to draw air past the case. All above water electric motors I have ever seen have some type of cooling fan and case ventilation. I have added ventilation to motors But I never packed one in snow.

That whole ice and beer thing was more of a joke than anything, but I'll bet it would work.

sawdustdad · #28 02-12-2019, 08:43 PM

ice or snow packed around the motor would surely work to cool the motor.

I don't think there is any practical way to ventilate what is built as a sealed, waterproof motor. I'd wrap it in aluminum heat sinks and put a fan on it. Or pick a different motor.

Still think it's a neat idea.

cheesedawg82 · #29 02-12-2019, 09:09 PM

Quote:

Originally Posted by sawdustdad

ice or snow packed around the motor would surely work to cool the motor.

I don't think there is any practical way to ventilate what is built as a sealed, waterproof motor. I'd wrap it in aluminum heat sinks and put a fan on it. Or pick a different motor.

Still think it's a neat idea.

I think putting that heat sink in a tube with the factory fan would keep it super cool, but noise may be an issue.

A different motor is very possible. Frankly, nearly any motor over 1.5 hp that I can find for as close to free as possible has potential to be "the one." I've got all summer and most of the fall at the very least to see what the empire of dirt may provide, who knows what might get built.

cheesedawg82 · #30 02-12-2019, 09:16 PM

Quote:

Originally Posted by sawdustdad

ice or snow packed around the motor would surely work to cool the motor.

I don't think there is any practical way to ventilate what is built as a sealed, waterproof motor. I'd wrap it in aluminum heat sinks and put a fan on it. Or pick a different motor.

Still think it's a neat idea.

I think putting that heat sink in a tube with the factory fan would keep it super cool, but noise may be an issue.

A different motor is very possible. Frankly, nearly any motor over 1.5 hp that I can find for as close to free as possible has potential to be "the one." I've got all summer and most of the fall at the very least to see what the empire of dirt may provide, who knows what might get built.