THE DESIGN AND FABRICATION OF MECHANICAL LAWN MOWER
By
AGBIDI MCHIKA ME/H2003/013
Presented To
Department of Mechanical Engineering
ABSTRACT
In this pass, cutting of grasses in the school, track or filed, Industries hotel, public centers, Agriculture lands etc. was done by machete or cutlass. This method of manual cutting not only was laborious but also time consuming as it is human effort that is entirely needed both for cutting and motion. There was also inaccuracy in cutting level of the each inaccuracy in cutting level of the each individual as many factors will influence the late, speed h, height of cut of each individual.
Apart from all these cumbersional old method of cutting there is also risk of accident. As one can easily get cut with his or her machete/cutlass. Also there is need for mechanization since the world is going modernization bearing all these problems in mined trying to fine a solution to it, we decided to embark on this project. This project can be used for cutting of grass. And all the problems of the manual cutting was meant to be overcome.
Therefore this lawn mower is used for cutting grass to equal length ( though you can adjust to level of cut) for speed cutting, it is also lies accident fine as well, it has a reduced labour as it is an on
1 –c engine that does the accurate cutting, While the pusher provides the effort/motion.
TABLE OF CONTENTS
Title page
Latter of transmit
Release page
Signature page
Approval page
Dedication
Acknowledgement
Abstract
Table of content
CHAPTER ONE
1.0 Introduction
1.1 Identification of need
1.2 Literature review
1.3 Historical background off the project scope
1.4 Important of the project to society
1.5 Aim and objective of the project
CHAPTER TWO
2.0 Specification of Problem
2.1 Scope of specialization condition of use
2.1.1 Characteristic
2.1.2 Performance
2.1.3 Appearance
2.1.4 Reliability and life
2.1.5 Synthesis of solution
2.1.6 Theory and analysis of problems
2.3 Determination of torque
2.4 Determination of cutting of blade
2.6 Determination of minimum of circular staff use
CHAPTER THREE:
DESIGN CONCEPT OF THE LAWM MOWER
3.1 Design specification of the lawn mower
3.2 Design concept
3.3 Detail design of a lawn mower
3.4 Design solution
3.5 Material selection
3.6 Design calculation
3.7 Analysis of the problems
CHAPTER FOUR
4.0 Mode of construction
4.1 Tool equipment used for the construction
4.2 Fabrication techniques/sequence of opt
4.3 Assembly of the project
4.5 Description of each component
4.6 Safety precaution
4.7 Result of operation carried out
CHAPTER FIVE
5.1 Estimation of cost
5.2 Conclusion and recommendation
5.3 References and Bibliography
LIST OF SYMBOLS
G = Density
d = Diameter of the shaft
D = Diameter of the blade
W = Omega Angular spied
J = Second moment of initial
M = Mass of the object
T = Torque
 = Pie
V = velocity
F = Cutting force
P = Power
6 = Shear stress
E = Strain
L = Length
B = Breadth
H = height.
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