Finding Load on Pulley Shafts with Belt Drives

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    Belt Load Pulley
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Discussion Overview

The discussion revolves around calculating the load on pulley shafts in a belt drive system involving three or four pulleys. Participants explore methods for determining the forces acting on each pulley shaft and seek resources or references that address this specific scenario.

Discussion Character

  • Technical explanation
  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant, Prakash, seeks guidance on calculating shaft loads for a belt drive system with multiple pulleys, noting that traditional methods apply to simpler two-pulley systems.
  • Another participant requests clarification and suggests that a drawing would help understand the setup better.
  • A further reply assumes the goal is to calculate forces in the belt and mentions using mechanics to derive equations, although the participant expresses difficulty with formatting their equations.
  • The same participant notes that with three pulleys, there are three unknown forces and implies that three equations will be necessary to solve the problem.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the clarity of the original question, with some expressing confusion about the setup and others attempting to provide guidance on the calculations involved.

Contextual Notes

The discussion lacks specific assumptions about the belt drive configuration and does not provide detailed mathematical steps for the calculations, which may affect the clarity of the proposed solutions.

Analysis
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Dear all,

My objective is to find shaft load in which belt pulley is mounted and load being transmitted via belt.
In the case of two pulley belt drives ,the load to the pulley mounting shafts calculation can found by getting guidance in almost all textbooks(T1 &T2 relations). Where in my case 3 as well as 4 pulleys and one single belt transmit the power. Now i need to find each pulley shaft load what is the procedure to be followed?Any belt hand books dealing this?

Ref.books,ref.materials,sites are welcome

Thanks
prakash
 
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Your question isn't very clear. Can you put up a drawing?

Do you mean a shaft with one pulley getting the power & transferring it to other shafts through other pulleys on the same shaft?
 
For ur clarification fig is attached.

Thank u
Prakash
 

Attachments

  • belt pulley.PNG
    belt pulley.PNG
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Sorry, the question still isn't very clear to me.

I assume you are trying to calculate the forces in the belt. You can calculate it using simple mechanics

^{F}1-^{F}2 = \frac{T}{r}

\frac{^{F}1}{{F}2}=_{e}\mu\theta.

Duh, sorry can't get the latex going:mad:

Anyways, there are 3 pulleys, so three unknown forces & three equations to solve. Good luck.:smile:
 

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