Find maximum torque which can be transmitted by belt drive, Mechanical Engineering

Find maximum torque which can be transmitted by belt drive:

A belt is stretched over the two identical pulleys having diameter D meter. The initial tension in belt throughout is 2.4KN when pulleys are at rest. In using these pulleys and belt to transmit torque, it is seen that the increase in tension on one side is equal to decrease on the other side. Find maximum torque which can be transmitted by belt drive, given that the coefficient of friction between the belt and the pulley is 0.30.                                                      

1839_Calculate tension in limbs.png

Sol: Given:

Diameter of both the pulley = D

Initial tension in belt (TO) =2.4KN Torque = ?

Coefficient of the friction (µ) = 0.3

Since diameter of both pulley are same, that is, Angle of contact = Π

TO  = (T1  + T2)/2

T1  + T2  = 4.8KN                                                                                                                             ...(i)

Now, Ratio of belt tension = T1/T2  = eµθ

T1/T2  = e(0.3)Π

T1=2.566T2                                                                                                                                 ...(ii)

Putting value of (ii) in equation (i), We get

T1  = 3.46KN                                                                                  .......ANS

T2  = 1.35KN     .......ANS

Now, The maximum torque transmitted by pulley = (T1  - T2)D/2 (As radius of both pulley are same)

Torque = (3.46 - 1.35)D/2 = 1.055D KN-m

Torque =   1.055D KN-m                                                                    .......ANS

 

Posted Date: 10/19/2012 6:39:39 AM | Location : United States







Related Discussions:- Find maximum torque which can be transmitted by belt drive, Assignment Help, Ask Question on Find maximum torque which can be transmitted by belt drive, Get Answer, Expert's Help, Find maximum torque which can be transmitted by belt drive Discussions

Write discussion on Find maximum torque which can be transmitted by belt drive
Your posts are moderated
Related Questions
Hi I am new tutor here Pankaj kumar I got the mail for the verification and i regitered now . But how can i get the sample assignment for the further process.

Classification Based on Mode of Welding Manual welding: In this welding the entire welding operation is performed and controlled by hand. Here, there are two movements involv


Find the maximum shear stress - stepped circular bar: A stepped circular bar ABC 4 m long fixed at one of the end 'A' is subjected to a torque of 10 kN-m. If the portion AB is

Short Circuiting Transfer The short circuiting transfer  occurs when the welding current and the arc voltage is low. Metal is transferred from the electrode to the work only wh

Simply Supported Beam: Simply Supported Beam: The beam on which both ends are supported, either by point load or hinged or roller support.

Steps for solving the problems when more than two coplanar forces are acting on the rigid body: The steps are as; 1. Check the Problem for the concurrent or Non concurren

Arc Spot Welding In this process, coalescence at the overlapping surfaces is produced in one spot by heating with an electric arc between an electrode and the work. The weld i

What is Time-Study ? How the standard time is determined in Time-Study ? What are the Merit-Rating ? Illustrate various methods of Merit-Rating. Describe the Break-Even-Analy