Electric Snow Blower (Gravely)

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
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Joe90   10 W

10 W
Posts: 92
Joined: Jul 12 2010 7:14am

Electric Snow Blower (Gravely)

Post by Joe90 » Dec 22 2018 8:56am

Hi Guys,

Just wanted to share some build pictures and a video of my 1972 2 wheel tractor conversion.

The motor is a Heinzman PMS-126 that I bought here a couple years ago.
Sevcon Gen4 size 6 drive is overkill but this is what I had on hand.
I use my bike battery that is 24S11P li-ion of LG HG2
Cleaning my driveway require between 300wh and 1300wh depending on snow conditions
Most of the time it's around 500wh
I am not finished because I dont know how much power/current I actually use.
I programmed the drive to ouput 32Nm up to 3000 rpm and 180A phase current.
Limited the batt current to 130A input.

Here is the link to a not good video but at least you can see the operation of it.

https://www.youtube.com/watch?v=EE1ARneaODs&t=1s
Attachments
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47580950_199790577591252_160673124520558592_n.jpg
47683821_320590031870951_5870533816124178432_n.jpg
Gravely Electrique - 1.jpg
Michel Cote
Norco Tactik Rc twin drive
2 VESC on 12S
60km/h top speed
2 x 2 kW max input power


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pwd   100 W

100 W
Posts: 294
Joined: Oct 11 2011 12:01pm
Location: Ontario, Canada

Re: Electric Snow Blower (Gravely)

Post by pwd » Dec 22 2018 3:21pm

Thanks for sharing; that thing is a beast! I'd love to have an electric snowblower someday that can handle what my 10HP 30 inch ICE blower does.
Commuter/Street Build:
Rocky Mountain Element
Magic Pie 4 front + Leafmotor 1500 rear w/ WCEC 18fet
em3ev 14S5P 30Q + 14S6P 25R pack
Build Thread: viewtopic.php?f=6&t=98286

Offroad Build:
2019 Rocky Mountain Blizzard 20
Cyclone "3kw" 13T motor to 44T chain ring then 36T chain ring to 11T-46T Cassette
em3ev 14S5P 30Q

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X2flier   10 W

10 W
Posts: 79
Joined: Jun 25 2018 11:14am

Re: Electric Snow Blower (Gravely)

Post by X2flier » Dec 23 2018 10:53pm

Joe,

I like the idea of a battery-powered snow thrower, but the extreme environment that snow throwers must endure seems like a real challenge to the batteries. The battery prices may be somewhat daunting, as well. I guess it would be okay if you have enough batteries lying around. 8)

FWIW, I have an electric snow thrower, too. It cuts an 18" swath, and if I don't watch it, that unit will take snow from my place and put it across the street on my neighbor's driveway. It's a Toro PowerCurve; it's light, it's not expensive, and it runs on 60 cycle AC. Once you pile the electric cord where it feeds itself out constantly as you throw snow, electric power is fine. I use three prong power cords, of course. The motor inside is smaller than my fist, but it sings.

Gotta say, your conversion is a brilliant idea. It's downright inspirational. I have a big two-stage snow thrower also, and if that ancient dinosaur engine ever quits, I will be looking for an equivalent 60 cycle AC motor for the rig. My Toro runs on a toothed flat drive belt, so I know it will be easy to get the drive reduction needed, with the right belt pulleys. Drive belts are also a safety factor; if anything jams the snow thrower, only the drive belt will fail, where a gear drive would probably destroy either the jamming material, or the machine transmission, or both. D.A.M.H.I.K. :mrgreen:
Cheers,
X2flier

Joe90   10 W

10 W
Posts: 92
Joined: Jul 12 2010 7:14am

Re: Electric Snow Blower (Gravely)

Post by Joe90 » Dec 25 2018 11:31am

Thanks for kind comments
Michel Cote
Norco Tactik Rc twin drive
2 VESC on 12S
60km/h top speed
2 x 2 kW max input power

afewskroosloose   10 µW

10 µW
Posts: 6
Joined: Nov 27 2018 11:09pm

Re: Electric Snow Blower (Gravely)

Post by afewskroosloose » Feb 10 2019 1:32pm

That's a beast..love it!

What is the kw rating of the motor and how large of a swath does it clear and how deep have you cleared, if I may ask?

Im working on a custom r/c vehicle for snow throwing, mowing, and just for fun and am in the concept/research phase of the power system that will be required for a 42"-50" mow/snow clearing (6 acres and about 100yd rural driveway)

Thread so far is here:

https://endless-sphere.com/forums/viewt ... 34&t=97513

Awesome build!

ENNOID   100 W

100 W
Posts: 120
Joined: Dec 01 2017 3:26pm
Location: Quebec
Contact:

Re: Electric Snow Blower (Gravely)

Post by ENNOID » Feb 10 2019 2:13pm

Funny and very similar to my homemade battery powered snow blower:

https://endless-sphere.com/forums/viewt ... =7&t=98592

LeftieBiker   10 kW

10 kW
Posts: 580
Joined: Nov 06 2012 1:33am
Location: Upstate NY, United States

Re: Electric Snow Blower (Gravely)

Post by LeftieBiker » Feb 10 2019 4:20pm

I also have a Toro Powercurve, and I agree it's great - within certain limits. It doesn't handle wet, heavy snow well, or more than 18" of powder. The effort of pushing it makes for a great workout, but I don't always want or need an extreme workout! For years, I've been thinking about a dual power electric snowblower with a battery pack AND an AC cord connector, to save the battery while near the house. It seems that Snow Joe makes one now, but it's a bit too small, and not, IIRC, self-propelled. I definitely need self-propulsion.

BTW, as of about two years ago, there are no more American-made snowblowers, and virtually all of the engines are made in China - even Briggs & Stratton...

Joe90   10 W

10 W
Posts: 92
Joined: Jul 12 2010 7:14am

Re: Electric Snow Blower (Gravely)

Post by Joe90 » Feb 27 2019 6:08am

Hi

I can cut 34" wide by 18" high
I can use it for 1h of course the duty cycle is not 100% maybe 50%.
Motor is sold for 7kw but can do 16kw peak.
I do 10kw peak wich is plenty. The way its mounted, the transmission case act as a huge heat sink. Its only warm after 1h of hard work.

This winter really put it trough it s pace and I can tell that li ion batt are darn good
I have 24S11P lg hg2

Cheers
Michel Cote
Norco Tactik Rc twin drive
2 VESC on 12S
60km/h top speed
2 x 2 kW max input power

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