Design And Fabrication Of Electrical Motorized Bicycle Wheelchair

Design And Fabrication Of Electrical Motorized Bicycle Wheelchair

Abstract

This paper is on the design and fabrication of an electrical motorized bicycle wheelchair. The units of the wheelchair are first constructed before being assembled to form wheelchair. The usage is outlined and the assessment of performance of the machine was carried out based on the wheelchair. The wheelchair is recommended for both inward and outward movements of the disabled. The procedure adopted in writing this project is to achieve the aforementioned purpose. Chapter one deals with the introduction, chapter two deals with literature review, chapter three deals with the material and method, chapter four deals with procedures of fabrication of the wheelchair, chapter five deals with conclusion and recommendation of the project and recognition of needs.

Table of Contents

Preliminary Page(s)

• Tile page
• Certification
• Dedication
• Acknowledgement
• Abstract
• Table of content

Chapter One

1.0 Introduction

• 1.1 Aim and Objectives
• 1.2 Scope of the study
• 1.3 Limitation
• 1.4 Justification
• 1.5 Definition of some parts

Chapter Two

2.0 Literature Review

• 2.1 Types of Wheelchair
• 2.2 Motorized Wheelchair
• 2.3 Operation Principle of wheelchair

Chapter Three

3.0 Materials used in the design and fabrication of motorized bicycle wheelchair

• 3.1 Design Drawing
• 3.2 The Alternative Consideration Concept
• 3.3 Chain drive design
• 3.4 Analysis and Calculation of the Link Mechanism
• 3.5 Maximum and Minimum Speed of the Bicycle
• 3.6 Power Capacity of the Machine
• 3.7 Design Analysis of an electric Motor

Chapter Four

4.0 Fabrication Tools

• 4.1 Procedure
• 4.3 Finishing Method
• 4.4 Test and Evaluation

Chapter Five

5.0 Conclusion

• 5.1 Summary
• 5.2 Recommendation
• 5.3 Finished Photo
• References

Chapter One

1.0 Introduction

This modern day has brought about a high demand for comfort ability. The ease of disability of humans and their helps are so overwhelming. With this comes the choice of designing an electrically operated motorized bicycle wheelchair to meet up with the demand of the users. ‘

An electrical motorized bicycle wheelchair is a wheelchair that is propelled by means of an electric motor rather than manual power.

Motorized bicycle wheelchairs are useful for those unable to propel a manual wheelchair or who may need to use a wheelchair for distance or over terrain which would be fatiguing in a manual wheelchair.

Furthermore, they may also be used not just by people with traditional mobility impairments, but also by people with cardiovascular and fatigue based conditions. Any disabled person with a mobility, fatigue or pain- based impairment issues may find a power chair advantageous in some circumstances. However, existing prescription practices generally means that power chair for such use must be private procured or hired for the occasions.

1.1 Aim and Objectives

1. To fabricate using available local materials y
2. To reduce the labour cost and time spent using manual wheelchair.
3. To help in reducing the cost of production of a machine
4. Increase productivity
5. To encourage indigenous technology
6. To help students have a better in sight in order to modify the machine in question

The real need for the fabrication of the electrical motorized bicycle wheelchair is significant in the much delay and time as well as energy wasted in using manual wheelchairs and clutches. Moreover, the cost of importation of electrical motorized bicycle wheelchair is too high for average user.

Moreso, to the use of other wheelchair, the electrical motorized bicycle wheelchair will help to save labour, time and consequently increase the rate of production and crafitsnarfs skill. It is also important to explore the design of machines to improve on the ones already made.

1.2 Scope of the Study

The electrical motorize bicycle wheelchair is produced to solve the problems encountered by disables in their movement from place to place.

Also to fasten the rate at which they move without high labour and of good comfort. `

1.3 Limitation

1. Unavailability of materials
2. Financial constrain
3. Unsteady power supply
4. Unavailability of working tools

1.4 Justification

For the fact that Bicycle wheelchair is electrically motorized, it is justified as a simple machine that every disabled person can use and enjoy for free movement from one place to another comfortably in both indoor and outdoor environment.

1.5 Definition Of Some Parts

i. Frame:

This serves as the skeletal part of the wheelchair to which other parts of the wheelchair are fixed for perfect design.

ii. The Tyre:

This enables the wheelchair to move from place to place,
through its rotary motion.

iii. A.C. Motor:

This serves as the engine, that propels motion of the wheelchair with the help of the battery.

iv. Battery:

This provides the adequate current needed for proper functioning of the A.C. motor and other electrical parts.

v. Handle:

This controls the direction of the bicycle wheelchair at the will of user.

vi. Hub:

This is the central part of a wheel, the spokes are all fixed there and it the base for the tyre movement.

vii. Pulley and V.belt:

The pulley helps to transmit motion of the tyre through the use of the V.belt. The wheelchair has pulley connected to both the motion driving source and driven source with the help of the V.beit connected on it. This belt helps to transmit source (motor) to the driven source (tyres) motion from the driving.

Chapter Five

5.0 Conclusion

The graduates of engineering in Nigeria would seem irrelevant and incompetent if this country should import every device she needs. Little wonder, why National Diploma Students are trained to face the challenges of metal fabrication and design of components and devices.

We have been able to make use of the available local materials in the design of electrical motorized bicycle wheelchair against imported ones.

This electrical motorized bicycle wheelchair from all indications can compete with the imported ones

The design and fabrication of an electrical motorized bicycle wheelchair is a project, which would expose the student to fabrication; design and machine tool operation. It has helped in improving our creativity and initiative ability as regards to production and design of engineering components devices and metal fabrication.

5.1 Summary

The design and fabrication of this wheelchair was made and tested, it works efficiently. We hereby recommend this machine for urban and rural dwellers in both indoor and outdoor usage.

5.2 Recommendation

We recommend this work to all mechanical engineering students, technicians and engineers who would want to embark on the production of electrically motorized bicycle wheelchairs

This work is also recommended to all mechanical engineering students who were scared of workshop practice for them to understand that the relevance in this profession is in its practical out put. This recommendation also goes to engineers who cannot prove their work in the workshop but only on papers.

We hereby recommend that the school management should help to equip the mechanical engineering workshop with every necessary tools needed for practical works.

We finally recommend that the government should motivate and sponsor trained, skilled and talented engineers in this country to invigorate them to put their best in the fabrication of components and maintenance to minimize importation.

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