Find power transmitted by cross type belt, Mechanical Engineering

Assignment Help:

Find power transmitted by cross type belt:

Find power transmitted by cross type belt drive connecting two pulley of diameter 45.0cm and 20.0cm that are 1.95m apart. The maximum permissible tension in belt is 1KN, coefficient of friction is 0.20 and speed of the larger pulley is 100rpm.

Sol: Given that

D1 = Diameter of the driver = 45cm = 0.45m

R1 = Radius of the driver = 0.225m

D2 = Diameter of the driven = 20cm = 0.2m

R2 = Radius of the driven = 0.1m

X = Distance between the centers of two pulleys = 1.95m

T1 = Maximum permissible tension = 1000N

µ = Coefficient of friction = 0.20

N1 = Speed of the driver(Larger pulley) in R.P.M. = 100RPM

As we know that,

Power Transmitted = (T1-T2).V/1000 Kw                                                                                                   ...(i)

Tension is in KN and V is in m/sec

First ve find the velocity of the belt, V = Velocity of the belt in m/sec.

Here take diameter and Rotation per minute of larger pulley

= pDN/60 m/sec, D is in meter and N is in Rotation per minute

= (3.14 X0.45 X 100) /60

= 2.36m/sec                                                                                                                       ...(ii)

Now Ratio of belt tension, T1/T2  = eµθ                                                                                ...(iii)

Here we do not know the value of θ, For θ, first find the value of a, then by formula,

Angle of Lap for cross belt a = sin-1(r1 + r2)/X

112_Find power transmitted by cross type belt.png


Related Discussions:- Find power transmitted by cross type belt

Supply fan - air-conditioning guidelines, Q. Supply Fan - air-conditioning ...

Q. Supply Fan - air-conditioning guidelines? Recheck final air quantities and static pressure. Indicate location of motor and belt guard. For fans located in plenums ensure ade

Determine wheel diameters at the pitch circle of blades, A pelton wheel wor...

A pelton wheel works at the foot of a dam because of which the head available at the nozzle is 220m. the nozzle diameter is 20 c.m. and coefficient of speed 0.98. The wheel operate

Explain the tool angle, What is Tool Angle? The several angles influenc...

What is Tool Angle? The several angles influence tool performance to a considerable extent & therefore their value should be selected with great care & consideration. a) It

Resistance seam welding, Resistance Seam Welding This is similar to spo...

Resistance Seam Welding This is similar to spot welding except that the copper alloy electrodes are in the form of circular rollers. The overlapping sheets are held under const

T-section, Ask question #MinimA beam of T-section with flange 300 mm × 30 m...

Ask question #MinimA beam of T-section with flange 300 mm × 30 mm and web 260 mm × 30 mm is subjected to a shear force of 100 kN. Determine the percentage of shear force carried by

Multimeter-electrical instruments , Multimeter: This is used to measure vo...

Multimeter: This is used to measure voltage, current and resistance of an electrical circuit (Figure). Figure: Multimeter

Bending stress in curved beams, aframe of punching machine and its varios d...

aframe of punching machine and its varios dimentions. if it has force of85kN determine others

Hot pressing-manufacturing methods of ceramics, Hot Pressing This pres...

Hot Pressing This pressing requires application of pressure throughout sintering. In usual understanding hot pressing comprises in applying a unidirectional pressure via the a

Calculate tensions in chain and chord - mechanics, Calculate tensions in ch...

Calculate tensions in chain and chord - Mechanics: A lamp of mass 1Kg is hung from the ceiling by a chain and is pulled aside by horizontal chord until the chain makes an ang

Mechatronics, what is plc and how does it works

what is plc and how does it works

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd