ABSTRACT
Groundnut shelling machine was designed and fabricated at the department of Mechanical Engineering, institute of Technology, Kwara State Polytechnic Ilorin aimed at increasing shelling/decorticating efficiency and eliminating drudgery associated with the traditional method of -shelling groundnut and other developed method such as pedal operated methods. The machine is powered by a 1.5 horse power motor at a speed of 1440 revolution per minute. Performance investigation carried out show a good performance of the machine with decorticating efficiency, undecorticating efficiency, machine damage efficiency, cleaning efficiency and output capacity of 92%, 7.5°k, 3%, 85% and 120kg/hour respectively.
TABLE OF CONTENT
Title page i
Approval Page ii
Dedication iii
Acknowledgement iv
Abstract v
Table of content vi
List of Figures vii
Nomenclature viii
CHAPTER ONE
1.1 Introduction 1
1.2 Aim and Objectives of the Project 3
1.3 Justification of the Project 3
1.4 Working Principle 5 CHAPTER TWO
2.0 Literature Review 6
2.1 Methodology 7
CHAPTER THREE
3.1 Selection of materials Used 8
3.2 Beater Assembly 13
3.3 The Sieve 14
CHAPTER FOUR
4.0 Design Analysis 15
4.1 First Stage Design Consideration in New Machine 15
4.2 What is design 15
4.3 Why do we Design 18
CHAPTER FIVE
5.0 Design Calculator 20
5.1 Decorticating Unit Housing 20
5.2 Fan Blades 20
5.3 Pulleys 20
5.4 Design Calculations 20
5.5 Speed Ratio Analysis 21
5.6 Moment of inertia 21
5.7 Calculation of torque 22
5.8 Calculation of machine Drive power 2 3
5.9 Tension in the Belt 23
CHAPTER SIX
6.0 Advantage 28
6.1 Disadvantage 28
6.2 Application 28
6.3 Maintenance 28
6.4 Autonomous Maintenance Activity 29
6.5 Cleaning 29
6.6 Cleaning is Inspection 30
6.7 Cleaning Process 30
6.8 Visual AIDS to Maintain Correct Equipment Condition 30
6.9 Adjust and Minor Repair 31
6.9.1 Adjust and Minor Sequences 31
6.9.2 The Path to perfect Safety 32
6.9.3 Chronic Defects 32
6.9.4 Equipment Improvement 32
6.9.5 Equipment Responsibilities of Operator 33
6.9.6 Precautions and safety measures 33
6.9.7 Precaution 34
6.9.8 Safety Measures 34
6.9.9 Recommendation for school 34
6.9.10 Conclusion 34
Reference 36
