SUBMITTED TO

Mr. MANISH DHIMAN

ASSIST. PROF. ME. DEPARTMENT

CHAIN

DRIVES

SUBMITTED BY

RAVINDER JANGID

B.TECH ME 2nd YEAR

INTRODUCTION

ADVANTAGES AND DISADVANTAGES

VELOCITY RATIO

FACTOR OF SAFETY

CLASSIFICATION OF CHAIN

POWER TRANSMITTED BY CHAIN

APPLICATION OF CHAIN DRIVE

SOME EXAMPLE OF CHAIN & CHAIN DRIVE

CHAIN DRIVE:-Chain drive is a way of transmitting mechanical power from one place to another.

CHAIN:-a sequence of items of the same type forming a line,circle

or a closed and open path.

Advantages of Chain Drives

Do not slip

Maintain constant and precise speed.

Good service life

Easy to install and repair

High transmission efficiency

Disadvantages of Chain Drives

Noisy

Need lubrication

Weight of the chain

Costly compare to belt

V.R. = N1/N2 = T2/T1

WHERE

N1= SPEED OF SMALL SPROCKET

N2= SPEED OF LARGE SPROCKET

T1= NO. OF TEETH ON SMALL SPROCKET

T2= NO. OF TEETH ON LARGE SPROCKRT

F.O.S.= WB/WWHERE

WB= BEAKING LOAD

W= TOTAL LOAD

BASIS OF USE :

HOISTING AND HAULING• CHAIN SPEED>.25m/s

CONVEYOR

• .8<C.S.<3

POWER TRANSMITTING• C.S.>3

• USED FOR SHORT DISTANCE

TYPES OF CHAIN

BASIS OF CONSTRUCTION :1. Roller Chains

Rotate on the teeth of a sprocket

2. Roller less Chains

No roller links

Used on lifts and hoists

3. Silent Chains

Sometimes called inverted tooth chain

Used at speeds and loads higher than roller chains

Sprocket, teeth different shape, grove in the middle

POWER TANSMITTED BY

CHAIN:

BASIS OF BREAKING LOAD

P=WB*v/n*KSWHERE

WB= BREAKING LOAD

v= VELOCITY OF CHAIN

n= FOS

KS= SERVICE FACTOR

BASIS OF BEARING STRESS

P= σb*A*v/KSWHERE

σb=ALLOWABLE BEARING STRESS

A= AREA

v= VELOCITY OF CHAIN

KS= SERVICE FACTOR

Use in vehicles Automobiles Transmitting power to the wheels Chain pump Bicycles Inside motors Chains versus belts

CHAIN DRIVE MECHANISM

CHAIN DRIVE OF AN AUTOMOBILE

REAR WHEEL CHAIN DRIVE OF A MOTORCYCLE

A TYPES OF CHAIN

THANK

YOU!!!!