Torque formula to throw a mass with two pulleys and a belt

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SUMMARY

The discussion centers on calculating the torque required to throw a mass using a snowblower equipped with two pulleys and a belt. Participants clarify that 500 kg/m³ refers to the density of snow, not its mass. They emphasize the importance of defining the parameters of the throw, such as height and speed, and suggest using the formula power = torque × RPM to determine the necessary torque. Additionally, they recommend calculating the power requirements of the snowblower, which can range from 2 hp to 15 hp.

PREREQUISITES
  • Understanding of basic physics concepts, particularly equations of motion.
  • Familiarity with torque and power calculations.
  • Knowledge of snow density and its implications for weight calculations.
  • Experience with snowblower mechanics and pulley systems.
NEXT STEPS
  • Research the specific power requirements for snowblowers based on the desired performance.
  • Learn how to calculate torque using the formula power = torque × RPM.
  • Explore online calculators for equations of motion and their applications in real-world scenarios.
  • Investigate the impact of pulley sizes on torque transmission and snow throwing efficiency.
USEFUL FOR

Engineers, DIY enthusiasts, and anyone involved in snowblower design or modification, particularly those looking to optimize torque and performance in snow removal applications.

jayjay
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Hey guys
What's is the formula to find the force(torque) to throw a mass in the air that is 500kg/m(3) with 2 pulley and a belt.
Thanks
 
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jayjay said:
ok so i need to find the mass like in kg? like for an exemple a 5 gallon bucket full of snow

Yes. More important, you need to define "throw" numerically. How high? How fast? Is it fast enough that we need to consider air drag on the thrown object?
 
anorlunda said:
Yes. More important, you need to define "throw" numerically. How high? How fast? Is it fast enough that we need to consider air drag on the thrown object?

well just trying to figure out how much force i need to the pulley to throw snow with a snowblower. that's why i found 500kg of density of snow in the snowblower cylinder that is 14 inch diameter and 5 inch deep roughly. but i might be wrong.
maybe this can't be solve.

also found that 1 cubic foot of water weight 62.4 lbs and they said snow weight around 30% of that.
so trying to calculate how many pounds of water in a cylinder that is 14 inch diameter by 5 inch.
that could give me a rough number in kg than found out how many force that pulley will need to throw that weight.
 
jayjay said:
well just trying to figure out how much force i need to the pulley to throw snow with a snowblower.
That puts in context. It is far easier to work with power than speed, acceleration and those equations of motion.

First, figure out how much power your snow blower needs? Then, power=torque*RPM is the remaining formula.

You can buy snowblowers in the store with power ratings from 2 hp to 15 hp or more. Which of those fits your need?
 
anorlunda said:
That puts in context. It is far easier to work with power than speed, acceleration and those equations of motion.

First, figure out how much power your snow blower needs? Then, power=torque*RPM is the remaining formula.

You can buy snowblowers in the store with power ratings from 2 hp to 15 hp or more. Which of those fits your need?

i have everyting settup already but it doenst throw snow so i have to change the pulley and that's why i want to make sure i have the right pulley for the troque

you'll understand better with the video
there's a shaft with 2 3inch pulley that trasmit the torque but they are to small
 

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