ABSTRACT
A machine for corn Sheller is highly and greatly need for consistence of usage of corn in local and international levels.
With regards to this indispensable need, a corn-shelling machine is designed which operates to remove the corn grains and leaving the cobs intact.
In attainment to this design objective and aims, a proper considerations was given to the machinability factor which includes, installation, simplification, durability, choice material operational efficiently serviceability of the masculine low costing and prolonged life span when operates with utilization with minimal down fine
The design details are given includes such items as materials and their characteristics. Adaptation methodology the parts relation with the whole device and the effect of the finished product upon which an inqiusit mined can make collection of fact in future which related to this project.
LIST OF ILLUSTRATION
1. Introduction
2. Literature Review
3. Material selection
4. the shelling llnit
5. The construction and Design methods
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 Newton’s
H â€" Height Meter
Rpm â€" Revolution per minute
R â€" Radius Meter
V â€" Volume Meter
Wt â€" Weight Newton’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