solar grass cutter - vpmpme.files.wordpress.com · abundant solar energy from the sun as a source...

2017-18

VPMP POLYTECHNIC

GANDHNAGAR

SOLAR GRASS CUTTER

2 SOLAR GRASS CUTTER, VPMP POLYTECHNIC, GANDHINAGAR.

CERTIFICATE

V.P.M.P. Polytechnic, Sector-15

Gandhinagar

Date:

This is to certify that dissertation entailed “Solar Grass Cutter” has been carried

out by :-

Kevin Vaishnav – (156540319124)

Harshit Vyas – (156540319125)

Dhruvil Patel – (156540319555)

Kashyap Nayee - (156540319055)

Mitesh Patel – (156540319081)

under my guidance in fulfillment of the degree of Diploma Engineering in

Mechanical Engineering(6th Semester) of Gujarat Technological University,

Ahmedabad during the academic year 2017-18

Guide: -

Head of Department:-


ACKNOWLEDGEMENT

I have taken efforts in these projects. However, it would not have been possible

without the kind support and help of many individuals and organizations. I

would like to extend my sincere thanks to all of them.

I thank our gods for providing me with everything that I required in completing

this project.

I have highly in Charge Mr. Sugnesh Patel for his guidance and constant

supervision as well as for providing necessary information regarding the project

& also thanks for our principal sir Professor Anand J. Patel for his support in

completing the project.

I would like to express my gratitude towards our parents for their kind cooperation

and encouragement which helped me in the completion of this project.

I would like to express my special gratitude and thanks to industry persons for

giving me such attention and time.

My thanks and appreciations also go to my classmates in developing the project

and to people who have willingly helped us out with their abilities.


ABSTRACT

The Solar Grass Cutter is a mechanical device used for cutting grass with the help

of solar energy instead of electricity.

First of all its body is made with the help of hollow square bar, then caster wheel is

placed below the body of square bar.

Then incline fiber plate is kept on a body, then on incline fiber plate solar panel is

kept. Which transmit solar energy & then solar energy is converted into electrical

energy & electrical energy is converted in to mechanical energy. This electrical

energy is transmitted to electric motor.

On the shaft of the electric motor a blade is connected having cutting edge which

cut’s the grass.


Table of Content

CHAPTER-1_ INTRODUCTION..................................................... 7

1.1 Introduction……………………………………………………………..7

1.2 Aim of project......................................................................................... 8

CHAPTER-2_SELECTION OF PROJECT……………………….9

2.1 Hover board…………………………………………………………….9

2.2 Solar water sprinkler…………………………………………….…....10

2.3 Three tyre way trolley ……………………………………….………..10

2.4 Solar Grass Cutter…………………………………………….………..11

2.5 Market survey…………………………………………………………..11

CHAPTER-3_BASIC THEORETICAL CONCEPT…………..12

3.1 Theory………………………………………………………………….12

CHAPTER-4_PART LIST…………………………………………14

4.1 Solar Panel……………………………………………………………...15

4.2 Battery…………………………………………….…………….……....16

4.3 Motor ……………………………………………………….………..…16

4.4 Blade…………………………………………………………….............17

4.5 PVC Pipe………………………………………………………………..17

4.6 Coupling & Reducer…………………………………………….............18


4.7 Caster Wheel…………………………………………………….............18

4.8 Fiber Sheet ……………………………………………………… 19

4.9 Switch……………………………………………………………19

4.10 Wire……………………………………………………………...20

4.11 Normal Wheel…………………………………………………..20

4.12 Circuit…………………………………………………………..21

4.13 Remote…………………………………………………………21

4.14 Small Battery…………………………………………………..22

4.15 Transistor………………………………………………………22

CHAPTER-5_FINAL COSTING ………………………………..23

CHAPTER-6_ADVANTAGES….………………………………....24

CHAPTER-7_APPLICATIONS..…………………………….........25

CHAPTER-8_CONCLUSION……………………………………..26


List of figure

SR. NO. FIGURES PAGE NO.

1. A Person With Solar Grass Cutter 8

2. Hover Board 9

3. Solar Water Sprinkler 10

4. Three Tyre Way Trolley 10

5. Solar Grass Cutter 11

6. Solar Panel 15

7. Battery 16

8. Motor 16

9. Blade 17

10. PVC Pipe 17

11. Coupling & Reducer 18

12. Caster Wheel 18

13. Fibre Sheet 19

14. Switch 19

15. Wire 20

16. Normal Wheel 20

17. Circuit 21

18. Remote 21

19. Small Battery 22

20.

Transistor 22


CHAPTER – 1 INTRODUCTION

1.1_INTRODUCTION

Due to the continuous increase in the cost of fuel and the effect of emission of

gases from the burnt fuel into the atmosphere, this necessitated the use of the

abundant solar energy from the sun as a source of power to drive a lawn mower.

A solar powered lawn mower was designed and developed, based on the general

principle of mowing. The designed solar powered lawnmower comprises of direct

current (D.C) motor, a rechargeable battery, solar panel, a stainless steel blade and

control switch. Mowing is achieved by the D.C motor which provides the required

torque needed to drive the stainless steel blade which is directly coupled to the

shaft of the D.C motor.

The solar powered lawnmower is operated by the switch on the board which

closes the circuit and allows the flow of current to the motor which in turn drive

the blade used for mowing. The battery recharges through the solar charging

controller. Performance evaluation of the developed machine was carried out with

different types of grasses.

The sun provides sustainable amount of the energy used for various purposes on

earth for atmospheric system. The difference is just the application of the energy

source. It is assumed that a lawnmower using solar as the energy source will

address a number of issues that the standard internal combustion engine and

electric motors lawn mowers do not.

A lawnmower with solar energy will be easier to use, it eliminates down time by

frequent trips to the gas station for fill-ups and danger associated with gasoline

spillage. The dangerous emissions generated by the gasoline spillage and that of

the internal combustion engine into the atmosphere are eliminated. The solar

powered lawnmower will help to reduce air pollution. Thus solar grass cutter is

used.


1.2 AIM OF PROJECT

To make up students mind, not only to work individually but also to work item.

To get the knowledge of each student in various subjects which he has studied

before?

To prepare a team, not only to make project but, also to decide design, cost of raw

material and advantages and limitations of them.

The students can know that which and what kind of difficulties and constrains they

have to face and find the right decision difficult it.

FIGURE 1.1 A PERSON WITH SOLAR GRASS CUTTER


CHAPTER – 2 SELECTION OF PROJECT

Before selection of the project, discussion has to be between the team members

and their requirement in routing activities. We think on a similar product

whether it is available I marked or not thinking by different kinds of it features.

We can make modified product having more advantages at economics cost. Also

we have to consider the feasibility as well as suitability for available resources and

facilities to carry out the project work.

The following projects are under consideration.

2.1 Hover board

FIGURE1.2 HOVER BOARD


2.2 SOLAR WATER SPRINKLER

FIGURE 1.3 SOLAR WATER SPRINKLER

2.3 THREE TYRE WAY TROLLEY

FIGURE 1.4 THREE TYRE WAY TROLLEY


2.4 Solar Grass Cutter

FIGURE 1.5 SOLAR GRASS CUTTER

We have selected the solar grass cutter as our project.

2.5 MARKET SURVEY

The study of the spending characteristics and purchasing power of the

consumer who are within your business's geographic area of operation; a

research method for defining the market parameters of a business.

We can with stand in the market but, we should have two things one thing

is that the project we have chosen never face any problem regarding it’s

working. On the basis of concept of products the market survey and group

discussion we had find that our project can be used in stunts in the sky.

Without doubt we have selected the solar grass cutter because for saving the energy, fuel and the power supply.


CHAPTER – 3 BASIC THEORY AND CONCEPTS

3.1 THEORY:-

Working process:

Intelligent information appliance is the main direction of development in the

appliance control at irrigation fields. We designed a broad and commendable range

of Solar Grass Cutter along with solar panel. As the energy conversation is very

important in the current scenario and should be done to a maximum extent where

ever it is possible. Still, these mowers grass cutting machineries all need the same

things to work right -- a motor, a rotating blade, a means of getting around and a

way to get rid of the grass clippings.

The controlling device of the whole system is provided using switch ON the DC

motor interfaced with grass cutting blades. The entire model consists of two

sections one controlling section and another designing section of the model. The

controlling section consists of Rechargeable battery, relays switches and Solar

panel. The system depending on the charging circuit the motor can be controlled

using relay switch. The solar power stores the energy to a battery and then runs the

motor through the relay switch.


Design:

In designing the cutting blade, the force required to cut the lawn as well as the

force acting on the blade was considered. The force required by any sharp object to

have impact on the grass is less than 10 Newton. It is also dependent on the height,

density and the area covered by the object (Atkins, 1984). Therefore, in designing

the blade of the solar powered lawn mower, the force required for effective

mowing should be greater than 10 Newton.

A stainless steel was used in the construction of the cutting blade because of its

strength and weight which can transmit same speed as that of the DC motor or a

little less cause of friction.


CHAPTER – 4 PART LIST

SR.NO. DISCRIPTIONS NO OF PIECES

1. Solar Panel 1

2. Battery 1

3. Motor 2

4. Blade 1

5. PVC Pipe 26

6. Coupling, & Reducer 24

7. Caster Wheel 2

8. Fibre Sheet 1

9. Switch 2

10. Wire 4 meter

11. Normal Wheel 2

12. Circuit 1

13. Remote 1

14. Small Battery 2

15. Transistor 4


4.1 Solar Panel:

FIGURE 1.6 Solar panel

First the solar cells are joints with the use bus bar and flux.

Then according to use of solar panel, series and parallel connection are given

to the point

Solar panel is used to save the electric energy .It is also use store the energy

with the help of battery.


4.2 Battery:

FIGURE 1.7 Battery

Solar power can be store in the rechargeable battery and can be further

used for the grass cutting machine to run.

4.3 MOTOR:

Figure 1.8 Motor

This motor is used for the rotating the blade and when the blade is rotated

the grass is cut. The motor is rotated at 2000 RPM.

The motor is also used to rotate the wheel which move the body.


4.4 BLADE:

Figure 1.9 Blade

We have used the homemade blade. In which there are four

wings.

4.5 PVC PIPE:

Figure 2.1 PVC Pipe

We have used the PVC pipe to make the body structure.

By using PVC pipe the weight of the structure reduce, so the body moves

easily.


4.6 Coupling & Reducer:

Figure 2.2 Coupling & Reduce

We have used the coupling & reducer in the body.

4.7 Caster Wheel:

Figure 2.3 caster wheel

We used the caster wheel for moving the body

Caster wheel are used to move high load object. With the help of caster body

move easily.


4.8 Fiber Sheet:

Figure 2.3 Fiber Sheet

We have used the fiber to cover the body of the project.

And we have used to kept the solar panel.

4.9 Switch:

Figure 2.4 Switch

We have used the to ON OFF the blade.

And for the circuit to do ON & OFF.


4.10 Wire:

Figure 2.5 Wire

We have used the wire for giving different connection in motor, circuit,

transistor, etc.

4.11 Normal wheel:

Figure 2.6 Normal wheel

It is used for giving feed to the front wheel.

The motors are connected with this two wheel.


4.12 Circuit:

Figure 2.7 Circuit

The brain of the project is the circuit.

With the help of circuit the whole system of the project run’s.

4.13 Remote:

Figure 2.8 Remote

We used the remote to control the solar grass cutter

.

With the help of remote we can move the body.


4.14 Small Battery:

Figure 2.9 Small Battery

We have used the of 9v to give the power to the circuit.

4.15 Transistor:

Figure 2.10 Transistor

We used the transistor in the circuit to give the current.

We used the four transistors in the circuit.


CHAPTER – 5 FINAL COSTING

SR.NO. DISCRIPTIONS PRICE

1. Solar Panel 1000

2. Battery 700

3. Motor 950

4. Blade 60

5. PVC pipe 150

6. Coupling, & Reducer 500

7. Caster wheel 300

8. Fibre Sheet 100

9. Switch 10

10. Wire 40

12. Circuit 50

13. Remote 50

14. Small battery 60

15. Transistor 30

TOTAL 4100


CHAPTER – 6 ADVANTAGES

As there is no friction between parts, less maintenance is required.

It does not cause any environmental pollution.

As it is working on solar no fuel cost.

More life of the solar panel.

As the battery is used for backup it can be run in night also.

High efficiency.

We can reduce the wastage of power.

Very easy to use.

Low weight and easy to move any were.

Easy assemble and disassemble.

Design of it is compact.


CHAPTER – 7 APPLICATIONS

It can be used in garden at home.

It can be used in Public Park.

It can be used in college.

It can be used in party plots.


CHAPTER – 8 CONCLUSION

In the world today, all machines are designed with the aim of reducing or

eliminating green house gas emissions which is the major causes of climate

change. This solar powered grass cutter will meet the challenge of environmental

production and low cost of operation since there is no cost for fuelling. A solar

powered lawn mower has been developed for the use of residences and

establishments that have lawns where tractor driven mowers could not be used.

The machine’s capacity is adequate for its purpose. The machine has proved to be

a possible replacement for the gasoline powered grass cutter. In the presented

paper provides the fabricated information about the “Fabrication of Solar grass

Cutting Machine” which was designed such that the solar plate generates solar

energy and utilizing this energy for running the grass cutter motor. Integrating

features of all the hardware components used have been developed in it. Presence

of every module has been reasoned out and placed carefully, thus contributing to

the best working of the unit. Secondly, using highly advanced IC’s with the help of

growing technology, the project has been successfully implemented. Thus the

project has been successfully designed and tested.

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