LIST OF SYMBOLS
SYMBOLS UNITS
N â€" Factor of safety Kilogram
M â€"Mass Kilogram
Dia â€" Diameter Meters.
M â€" Bending Moment Meters
T â€" Torque Newton meter
V â€" Velocity Newton â€" second
T â€" Time Seconds
I â€" Moment of inertial Kilogram (meter)
g. â€" Acceleration due to grarity Newton (meter)
G â€" Modulus of rigidity Newton (meter)
P â€" Pressine Newton (meter)
p. â€" Power Kilowatts
F â€" Force Newtonâ€s
H â€" Height Meter
Rpm â€" Revolution per minute
R â€" Radius Meter
V â€" Volume Meter
Wt â€" Weight Newtonâ€s
D â€" Density Kilogram â€" mater
Pc â€" Critical Load Newton
L â€" Length Meter
W â€" Width Meter
S â€" bending stress Newton
Y â€" Tensional strell Newton /meter
TABLE OF CONTENT
Title page ii
Release page iii
Letter of transmittal iv
Signature page v
Approval page vi
Dedication vii
Acknowledgement viii
Abstract ix
List of illustration x
List of symbol xi
Table of contents xiii
CHAPTER ONE
Introduction 1
1.1 Purpose of construction 2
1.2 Importance and specification of the project 3
CHAPTER TWO
Literature Review 9
2.1 Hand shelling method 10
2.2 Direct linkages and its limitation 10
2.3 Refined Design and its specification 12
CHAPTER THREE
Material Selection 18
3.1 Material selection and Design of shaft 21
3.2 Selection and location of Bearing 22
3.3 Electric Motor Selection 24
3.4 Selection Of Pulley Material 25
CHAPTER FOUR
The Shelling Unit 26
4.1 The frame 27
4.2 The spinning shaft 28
4.3 Belt Drive 33
CHAPTER FIVE
Construction and Design Method 38
5.1 Metal Hopper 38
5.2 The shelling Unit 39
5.3 Outlet 39
5.4 Barrel 39
5.5 Perforated metal 40
5.6 Sequence of Assembly 40