Snowblower

   / Snowblower #1  

garnet

Bronze Member
Joined
Feb 28, 2009
Messages
50
Location
Manitoba, Canada
Tractor
Kubota bx 2360
I have built a loader for my BX 1850 Kabota. Now I am planning to build a snowblower. I am not satisfied with the commercial snowbblowers. The fans run too fast, the vortex is hampered by the flat blades and they create a wall of air that impedes the intake. I propose to build my snowblower with a fan speed of 270 rpm, 8" fan depth, 24" fan diameter, 10" exhaust port, a 95* pitch, and overall width of 50". Will the backing plate impede the horizontal air intake I am trying to create?
 
   / Snowblower
  • Thread Starter
#2  
Here is a picture of the loader I built.
 

Attachments

  • TRACTOR.jpg
    TRACTOR.jpg
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   / Snowblower
  • Thread Starter
#4  
I would like pictures and technical support regarding fan speed and size of fan.
 
   / Snowblower #5  
I propose to build my snowblower with a fan speed of 270 rpm, 8" fan depth, 24" fan diameter,

IMO At that speed, you wont have a snow blower, you'll have a power snow shovel at best...it wont blow snow worth a bean...
I've seen people make 1:1.3 or 1.5 Speed increasers to bump up the Fan speed to 750+ RPM and it makes a BIG difference in how far it chucks the snow....
 
   / Snowblower #6  
I don't know if that's a wise idea to slow down the fan speed. The way I see it, the fan is suppose to move a bit of snow, and not act like a shovel. Our Lucknow has a slow (compared to other) fan, and although it can move loads of snow, it doesn't shoot it far, and required lots of PTO HP. I'd prefer a snowblower that spins fast, and that won't jam up as quickly. The speed ratio between the auger and fan is important as well, as the auger dictates how much snow is fed to the fan.

Have you looked at the fans on a Pronovost?

They have curved fan blades.

gr1g.gif


Let us know how it works. :)
 
   / Snowblower #7  
Yea, Ditto. 270 rpm on 24 inch diameter is way too slow. My math says the tip speed (and theoretical speed of the snow as it leaves the fan) will be under 1700 feet per minute. My single stage runs at just under 4000 feet per minute. It will pitch most snow 30 feet, certain conditions up to twice that far. I'd guess you won't get snow to make 10 feet at that speed. And now you will get people telling you that 5000 feet per minute is the absolute minimum...
 
   / Snowblower
  • Thread Starter
#8  
Hi thanks for your input I can make anything from wood or steel but that doesn稚 mean it is right if you could send me your math equations I would be very appreciative . Just recently have learned how to read hope my grammar is ok
 
   / Snowblower #9  
When I first got my Yanmar with the two speed PTO, I did not read the owners manual and I thought that 540 rpm was up and 1000 rpm was down (on the handle). When I blew snow with it I could not believe how far that snow would blow! 50 to 60 feet easy. But then I wondered why it bogged down so easy in big drifts till I realized the PTO speed was wrong.
I guess what I am trying to say is faster is better than slower for your blower speed.
 
   / Snowblower #10  
Garnet - nice work on the loader! Do the rear uprights sleeve down into the carrier, then get pinned? So when you remove it from the tractor you raise the uprights somehow and reverse out from under? Seems very strong and logical. Or maybe it's not removable?
What is the steel piece just to the right (rear) of the upright in the picture?
Can't help on the blower speed, but it's very satisfying to get the stuff away from you, and you wear less too.
Jim
 

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