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magnethead494
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I'm working with a 3000 RPM @ 0.85 Nm motor in the transaxle from a powered scooter (like for disabled/elderly people). The differential has a 67:4 (16.75) reduction, which puts the output shafts around 179 RPM @ 14.23 Nm.
I'm passing this to a 25:9 chain drive, which makes the final output 64.4 RPM @ 39.5 Nm, or 29.13 pound-force-feet.
Each tire has an 11 inch radius, for a top speed of 6 feet per second, and a max thrust of 31.77 pound-force.
My question is, is the thrust at this point distributed evenly among 6 tires, or is it additive per tire? If I hooked a load to this this robot/ATV I'm building, would it stall at a 31 pound load with each tire providing 5.3 pound-force, or a (6*31.77 = ) 190 pound load with each tire providing 31 pound-force?
Thanks.
This is the axle carriage as I have it right now in my CAD program. Slowly getting more drawn.
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/461089_10150962129059606_771454605_12935442_879036768_o.jpg
I'm passing this to a 25:9 chain drive, which makes the final output 64.4 RPM @ 39.5 Nm, or 29.13 pound-force-feet.
Each tire has an 11 inch radius, for a top speed of 6 feet per second, and a max thrust of 31.77 pound-force.
My question is, is the thrust at this point distributed evenly among 6 tires, or is it additive per tire? If I hooked a load to this this robot/ATV I'm building, would it stall at a 31 pound load with each tire providing 5.3 pound-force, or a (6*31.77 = ) 190 pound load with each tire providing 31 pound-force?
Thanks.
This is the axle carriage as I have it right now in my CAD program. Slowly getting more drawn.
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/461089_10150962129059606_771454605_12935442_879036768_o.jpg
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