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ABSTRACT

          The aim of the project is to construct a domestic grain grinding machine to be powered by electric motor through pulley and belt transmission.

          The project is to perform mostly blending and grinding on grains e.g beans, maize, melon, millet and such other food crops.

          In construction of the project, there are various factors that is being put into consideration.

1. The size specification
2. The power of the electric motor to be used
3. The domestic operation which can be performed by the machine.
4. The capacity of the machine.

 

TABLE OF CONTENTS

CHAPTER ONE

Introduction                                                                                                1

1.1     Research problem                                                                    1

1.2     Justification of the study                                                                   2

1.3     Objectives of the study                                                            3

1.4     Scope and limitation                                                               3

CHAPTER TWO

Literature review                                                                               5

Existing grinding machine                                                                 7

CHAPTER THREE

Description of the machine                                                               9

CHAPTER FOUR       

Analysis and size specification                                                                   15

Calculation analysis                                                                          19

CHAPTER FIVE

Maintenance                                                                                      25

Operation procedure                                                                         25

CHAPTER SIX

Conclusion                                                                                        27

Recommendation for further work                                                    28

Reference                                                                                          30

                                                                  

 

CHAPTER ONE

 

INTRODUCTION       

          Every year, the final year student of this institution in Higher National Diploma (HND) and the National Diploma (ND) into practice.

          This is aimed at justifying the emphasis lead on practical work during the course of study in the assigned to construct a grain-grinding machine by the machine committee of Mechanical Engineering Department, the Polytechnic, Enugu.

          A grain grinding machine is an equipment used for grinding maize, beans, melon, millet and such other good crops.  This equipment comprises essentially of an electric motor, belt, pulley, transmission shaft, hopper, mills, spiral conveyor and stands. These alleviate the rigours and problems house we encounter when grinding beans for the good stuff.

 

1.1     RESEARCH PROBLEMS

          The project research problem are:

1. To construct a local fabricated grain grinding machine using available local technology.     
2. To construct a machine with a size specification.
3. To construct a machine which can perform a domestic operations.
4. To construct a machine which have adequate capacity, lighter in weight, lesser fatigue and portable.

 

1.2     JUSTIFICATION OF STUDY

1. This is to promote indigenous machine and their producers.
2. To have a portable grain grinding machine constructed for domestic uses with a powered driven source.
3. To improve the economic and the country as a whole by neglecting imported blenders i.e producing machine that is affordable to substitute the imported blenders.
4. To be able to meet National Board for Technical Education (NBTE) requirement in awarding National Diploma (ND) in Mechanical Engineering.

 

1.3     OBJECTIVES OF THE STUDY

          The objectives of the study are:-

1. To construct grain grinding machine with local materials.
2. To construct a machine which is less in crop and domestic usage.
3. To produce a grain grinding machine that is lesser in vibration, weight and in size.

 

1.4     SCOPE AND LIMITATION

          The following are the scope and limitation of the project:

To construct a machine that can perform domestic grinding of food condiments.

It can perform any operation that the electrical blender can perform due to its electrically powered.

 

 

 

 

 

Folding the four

side at right angle

 

Hopper

 

               Shaft

 

 

 

          Semi circular pipe f 82

 

 

 

 

                          45

 

 

Frame support

 

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