Student's Mechanical project Groundnut shellar machine

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RUBBER TYRE GROUNDNUT SHELLER K. J. SOMAIYA POLYTECHNIC VIDYANAGAR, VIDYAVIHAR, MUMBAI- 400077 Project report On “GROUNDNUT SHELLER MACHINE” Submitted By: VARUN N. KUKAWALKAR (FMEG10124) YOGESH R. MAHALPURE (FMEG10127) GAUTAM L. PANCHAL (FMEG10133) Guided By: Shri. A.V.Bhange Page 1 of 54

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Transcript of Student's Mechanical project Groundnut shellar machine

Page 1: Student's Mechanical project   Groundnut shellar machine

RUBBER TYRE GROUNDNUT SHELLER

K. J. SOMAIYA POLYTECHNIC

VIDYANAGAR, VIDYAVIHAR, MUMBAI- 400077

Project report On

“GROUNDNUT SHELLER MACHINE”

Submitted By:

VARUN N. KUKAWALKAR (FMEG10124)

YOGESH R. MAHALPURE (FMEG10127)

GAUTAM L. PANCHAL (FMEG10133)

Guided By:

Shri. A.V.Bhange

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K. J. SOMAIYA POLYTECHNIC

Vidyanagar, Vidyavihar, Mumbai 400077

This is to certify that Brother / Sister GAUTAM PANCHAL

Enroll. No FMEG10133, of Final Year Full Time Mechanical Engineering

Diploma has satisfactorily completed his/ her term work in INDUSTRIAL

PROJECT & SEMINAR in the topic “RUBBER TIER GROUDNUT

SHELLER” during the academic year 2012-2013.

Project Guide Head Principal& Secretary

Mechanical Egg. Dept.

Date: _

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K. J. SOMAIYA POLYTECHNIC

Vidyanagar, Vidyavihar, Mumbai 400077

SUBMISSON

I, GAUTAM PANCHAL with Enrollment. No FMEG10133,

the students of THIRD YEAR MECHANICAL

ENGINEERING humbly submit that we have completed from time to time the

seminar/project work as describe in this report by our own skill and study between the

periods from JULY 2012 TO APRIL 2013 as per the instruction/guidance of Shri.

A.V.BHANGE

However, the teacher has approved quantum of our contribution & also that, we

have not copied the report or it’s an appreciable part from the other literature in

contravention of the academic ethics.

Date: (Signature)

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CONTENTS

Sr.

No.Particulars

Page

No.

I Title Page 1

II Certificate 2

III Declaration 3

1 ABSTRACT 5

2 INTODUCTION 9

3 MATERIAL SELECTION 15

4 DESIGN 22

5 FUTURE MODIFICATION 32

6 PROJECT OUTPUT 36

7 MAINTENANCE 38

8 PRECATION & SAFETY 46

9 COST ESTIMATION 48

10 BIBILOGRAPHY 52

11 ACKNOWLEDGEMENT 57

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CONTENTS

Chapter

No.Particulars Page No.

1

INTRODUCTION

1.1 NEED OF PROJECT

1.2 INNOVATION

1.3 WORKING

1

2

MATERIAL SELECTION

2.1 SELECTION OF MATERIAL

2.2 MATERIAL USED

9

3

DESIGN

3.1FIRST STAGE DESIGN

3.2 FINAL DESIGN PROTOTYPE

15

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4

FUTURE MODIFICATION

4.1 MODIFICATION

4.2 SIEVING

22

5

PROJECT OUTPUT

5.1 ADVANTAGES

5.2 DISADVANTAGES

5.3 APPLICATION

32

6

MAINTANENCE

6.1 MAINTENANCE

6.2 CLEANING

36

7 PRECATIONS AND SAFETY 38

8

COST ESTIMATION

8.1 RAW MATERIAL

8.2 DIRECT LABOUR COST

8.3 INDIRECT COST

8.4 TOTAL COST

46

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ABSTRACT

Groundnut is a valuable and important crop which is cultivated almost throughout the world.

The groundnut must be cracked to obtain peanuts so it can be further used for extraction of

oil, and used in food items. The traditional way of removing peanut from groundnut is to

crack it with hand but when a large amount of nuts have to be work on this method is of time

consuming so the first Sheller made was revolving stone Sheller which had many

disadvantages so a rubber tier Sheller was made.

Rubbing action, between a rubber tire and a wire mesh, was used as the shelling

principle, for the Rubber Tire groundnut Sheller. The prototype for testing (Figures 5.1 - 5.4)

consists mainly of a main frame, a rubber tire, a concave, and a hopper.

The rubber tire used was a worn out rubber tire. Tire treads were cut to prevent excessive

slip during operation. Wheel rim and inner tube were also used. The purpose of using the tire

and concave is narrowest at the midpoint of the concave and wider toward the inlet and

outlet. This clearance is adjustable in a vertical direction. An opening of the hopper is also

adjustable so that feed rate can be inner tube was to study the effect of tire inflation on

shelling. The concave is a 11 x 11 mm wire mesh concave. The midpoint of the concave is

directly underneath the center of the rubber tire. The clearance between the rubber controlled.

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CHAPTER-1

INTRODUCTION

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1.1 NEED FOR PROJCET

In our country due to heavy cultivation of groundnut there is a need of shelling

the groundnuts and obtaining the peanuts in safe, fast and economic form. The agricultural

industries in our country have heavy machines to do the same but the farmers in rurer areas

and in small industries its necessary to have a economical and high efficiency machine which

can easy bark the groundnut shell.to get this done many machines are use some are

universalnutsheler,rubbertyersheller etc.

Hence we, the group of our class found the need of designing and

manufacturing such a system which will make the peanuts easy come out from its shell and

the peanuts too not get broken while the shelling is taking place

1.2 INNOVATION

Our design improves on the prior art because it is inexpensive, small scale, and does

not need outside help to build. The materials and tools are readily available and do not

require communication with external parties to be built.

Big commercial systems are simply too expensive for our target market. Even the

hand cranked machines cost upwards from $130. Electric powered machines are impractical

because electricity is expensive and hard to find in rural areas .Our solution is small and

inexpensive; it fits well into the household peanut industry.

The Malian peanut sheller is also a good low cost alternative, but it requires the

builder to have molds to make the concrete components. If the builder has access to fiberglass

materials to make molds out of, it is easy for him to build the device. If he does not have

access to such technologies, he must contact the designers and buy the molds at through the

United States, which may be very expensive.

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We aim to eliminate the need for molds and the need for outside parties. Our machine

requires no foreign assistance at all. It can be built using local materials by the local

craftsmen. There is no need for builders to communicate and interact with foreign parties.

Our approach to solving the peanut shelling problem is to use the concept of the rubber

tire design but make it affordable and easy to build with locally accessible materials. The

machine itself is very easy to build, and requires few skills besides basic carpentry. Our

concept does away with costs and complexity of fiberglass molds yet maintains a very low

cost. Repair is simple; extruded steel and other common components are easy to find. The

concept is simple and the design is modular, so it can be expanded if higher throughput is

desired. Locally accessible materials may differ in different regions, so our design can be

adapted to use different materials.

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The second component of our system is a device that separates the shelled kernels From

the shells. Prior designs for separation equipment use forced air to carry the shells away from

the kernels. Since forced air requires complex fan units and extra power, we designed a

separation machine that does not depend on air currents. Our design uses the round property

of the kernels to separate them from the husks. The round kernels roll in contrast to the shell

fragments, which are flat and may have fibers sticking out at the broken edges. Our separator

places the combined kernels and shells onto an inclined plane where the round kernels roll

down the plane, and the shell fragments stick on the sloped

1.3 WORKING

The peanut sheller is made of a used rubber tire mounted in a metal housing with a concave

wire screen bottom. As the wheel is cranked, the nuts enter the space between the tire and the

screen.

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In operation, groundnut in the hopper is fed into the clearance between the rubber tire

and the concave while the rubber tire is turning. The groundnut is then shelled by rubbing

action between the rubber tire and the wire mesh. After the groundnut has been shelled, the

kernel and the shell fall through the wire mesh into a collecting pan. Separation of the shell

from the kernel has to be done separately.

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CHAPTER 2

MATERIAL SELECTION

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MATERIAL SELECTION

The proper selection of material for the different part of a machine is the main objective

in the fabrication of machine. For a design engineer it is must that he be familiar with the

effect, which the manufacturing process and heat treatment have on the properties of

materials. The Choice of material for engineering purposes depends upon the following

factors:

1. Availability of the materials.

2. Suitability of materials for the working condition in service.

3. The cost of materials.

4. Physical and chemical properties of material.

5. Mechanical properties of material.

The mechanical properties of the metals are those, which are associated with the ability of

the material to resist mechanical forces and load. We shall now discuss these properties as

follows:

Strength: It is the ability of a material to resist the externally applied forces

Stress: Without breaking or yielding. The internal resistance offered by a part to an

externally applied force is called stress.

Stiffness: It is the ability of material to resist deformation under stresses. The

modules of elasticity of the measure of stiffness.

Elasticity: It is the property of a material to regain its original shape after

deformation when the external forces are removed. This property is desirable for material

used in tools and machines. It may be noted that steel is more elastic than rubber.

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Plasticity: It is the property of a material, which retain the deformation produced under

load permanently. This property of material is necessary for forging, in stamping images on

coins and in ornamental work.

Ductility: It is the property of a material enabling it to be drawn into wire with the

application of a tensile force. A ductile material must be both strong and plastic. The ductility

is usually measured by the terms, percentage elongation and percent reduction in area. The

ductile materials commonly used in engineering practice are mild steel, copper, aluminum,

nickel, zinc, tin and lead.

Brittleness: It is the property of material opposite to ductile. It is the Property of

breaking of a material with little permanent distortion. Brittle materials when subjected to

tensile loads snap off without giving any sensible elongation. Cast iron is a brittle material.

Malleability: It is a special case of ductility, which permits material to be rolled or

hammered into thin sheets, a malleable material should be plastic but it is not essential to be

so strong. The malleable materials commonly used in engineering practice are lead, soft steel,

wrought iron, copper and aluminum.

Toughness: It is the property of a material to resist the fracture due to high impact loads

like hammer blows. The toughness of the material decreases when it is heated. It is measured

by the amount of absorbed after being stressed up to the point of fracture. This property is

desirable in parts subjected to shock an impact loads.

Resilience: It is the property of a material to absorb energy and to resist rock and

impact loads. It is measured by amount of energy absorbed per unit volume within elastic

limit. This property is essential for spring material.

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Creep: When a part is subjected to a constant stress at high temperature for long period

of time, it will undergo a slow and permanent deformation called creep. This property is

considered in designing internal combustion engines, boilers and turbines.

Hardness: It is a very important property of the metals and has a wide verity of

meanings. It embraces many different properties such as resistance to wear scratching,

deformation and mach inability etc. It also means the ability of the metal to cut another metal.

The hardness is usually expressed in numbers, which are dependent on the method of making

the test. The hardness of a metal may be determined by the following test.

1. Brinell hardness test

2. Rockwell hardness test

3. Vickers hardness (also called diamond pyramid) test and

4 .Share scaleroscope.

The science of the metal is a specialized and although it overflows in to realms of

knowledge it tends to shut away from the general reader. The knowledge of materials and

their properties is of great significance for a design engineer. The machine elements should

be made of such a material which has properties suitable for the conditions of operations. In

addition to this a design engineer must be familiar with the manufacturing processes and the

heat treatments have on the properties of the materials. In designing the various part of the

machine it is necessary to know how the material will function in service.

For this certain characteristics or mechanical properties mostly used in mechanical

engineering practice are commonly determined from standard tensile tests. In engineering

practice, the machine parts are subjected to various forces, which may be due to either one or

more of the following.

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In engineering practice, the machine parts are subjected to various forces, which may be

due to either one or more of the following.

1. Energy transmitted

2. Weight of machine

3. Fictional resistance

4. Inertia of reciprocating parts

5. Change of temperature

6. Lack of balance of moving parts

The selection of the materials depends upon the various types of stresses that are set up

during operation. The material selected should with stand it. Another criterion for selection of

metal depends upon the type of load because a machine part resist load more easily than a

live load and live load more easily than a shock load.

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Selection of the material depends upon factor of safety, which

in turn depends upon the following factors.

1. Reliabilities of properties

2. Reliability of applied load

3. The certainty as to exact mode of failure

4. The extent of simplifying assumptions

5. The extent of localized

6. The extent of initial stresses set up during manufacturing

7. The extent loss of life if failure occurs

8. The extent of loss of property if failure occurs

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RAW MATERAIL AND STANDARS MATERIAL:

SR NO PART NAME MATERIAL. QTY

1 FRAME

ANGLE 25X25X5mm

IRON 1

2 RUBBER TIER RUBBER 1

3 TURNING HANDLE IRON 1

4 BEARING S.S 2

5 WIRE MESH S.S 2

6 GALVANISED STEEL SHEET GAL.STEEL 1

7 COTTER PIN STEEL 1

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CHAPTER-3

DESIGN

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3.1 DESIGN

FIRST STAGE DESIGN CONSIDERATION IN NEW MACHINE

The word 'design' means different things to different people - a wallpaper pattern, a

fashionable dress, the appearance of a racing car and so on. We therefore start by defining

what we mean by 'design' in the present context - i.e. What design is all about? This

understanding will lead to an examination of why we need to 'design', particularly in an

engineering environment, and How we might best go about 'designing'.

WHAT IS DESIGN?

The Concise Oxford Dictionary explains design as 'a mental plan, a scheme of attack,

end in view, adaptation of means to ends, preliminary sketch for picture, invention.'

Evidently there is a lot more to design than mere visual aspects, and design is not restricted to

engineering. Key components of this explanation are as follows:-

Means to ends implies that we design not for the abstract mental exercise, but with

a definite goal in view - some action or some physical object (artifact) will result

from the design.

Mental suggests that design is a thinking process. When we design we deal

primarily with ideas, with abstractions rather than with numbers - and computers

for example cannot do the job for us, though they can help in certain tasks. No

matter what we design, it is vital that we develop and apply our imagination to

visualize realistically the future form of the artifact or action, how it will

eventually come into being and most importantly how it will thereafter interact

with people and other artifacts’ or actions.

Plan, scheme infers that design is distinct from implementation. Designers

especially in engineering seldom execute their plans, but rather communicate

them to others - either by word of mouth, or visually (sketches, engineering

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drawings, computer simulations &c), or through the written word. Again, note the

lack of emphasis on numbers.

Invention means just that, we are coming up with something NEW - at least

partly. Creativity is crucial as we shall see later.

So, can we now define design completely? No! And neither do we need to. A rigid

definition implies a rigid process, and design is anything but that. We shall adopt the

following interpretation as it incorporates the above concepts and conveys a reasonably clear

idea of what design is all about -

Design is the application of creativity to planning the optimum solution of a given

problem and the communication of that plan to others.

Apart from the communication aspect therefore, we understand the essence of design to

be problem- solving, though the type of problem encountered in design is not like a typical

textbook mathematics problem for example in which the unique 'correct' solution is

guaranteed by following, automaton-like, a series of learned solution steps. A design problem

on the other hand is a real-life problem with many solutions, some of which meet the problem

requirements better, some worse, and where the process of discovering the solutions is not

mechanistic.

Some problems might appear not to need 'design' as a solution can be cobbled together

without much thought. This is true enough - if the solution can be based on direct experience.

However we shall soon come to realise that without experience such a thoughtless solution

usually comes to grief sooner or later - the more involved the problem and the more folk

affected by the solution, the more likely is the solution going to fall in a heap.

Any old solution will not do - we must strive for the optimum solution.

We expect that the design process, if properly carried out, will show a high probability of

disclosing a solution which is optimum or close-to-optimum, if indeed a unique optimum

exists.

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The prime aim of this chapter is to develop a structured approach to design - an approach

which will promote confidence in effectively solving real life problems. We shall focus on

problems involving engineering hardware - particularly for Design and Build (D&B)

Competitions - however the approach is perfectly general and applicable to problems arising

from a marketing sortie or a labour wrangle for example. The approach is thus very relevant

to managers and the like - not just to 'hardware designers'.

Before presenting the method however, let us look briefly at we go to the trouble of

designing . . . .

WHY DO WE DESIGN?

Most people these days exist by providing 'things’ to others; in the case of engineers these

'things' are technical muscle-power or know-how, or physical artifacts - that is solutions to

buyers' or hirers' particular problems. If these clients are not completely satisfied with the

'thing' provided then they will dismiss the provider, go somewhere else for their next 'thing',

and tell everyone about the provider's unsatisfactory 'things'. If this happens often enough to a

particular provider then that provider will cease to exist as a market force - nobody will want

to know.

So clearly, if 'things' are not designed with care and attention to clients' needs then the

provider will have problems.

Survival = Good design = Creativity

It is useful to view design in the context of a typical artifact which evolves from initial

conception, through the distinct stages illustrated, to eventual obsolescence. A planned action

undergoes an analogous sequence; however we shall concentrate on hardware.

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3.2FINAL DESIGN PROTOTYPE

The evaluation of the concept for shelling groundnut, using the rubbing action between

the rubber tire and the wire mesh, has shown promising results. The final prototype of the

Rubber Tire groundnut sheller was then designed and constructed. This prototype consists

mainly of a main frame, a rubber tire frame, a rubber tire assembly, a concave, and a hopper.

Two major modifications were made for the final-design prototype. The first

modification was on the rubber tire assembly. Since the tire with a small amount of inflation

or without inflation could satisfactorily shell the groundnut, the inner tube and the wheel rim

were not used in the final design. This was to reduce the cost of the Sheller.

Construction of the rubber tire assembly for the final design with the second modification

was on the method of adjusting the clearance. On the first prototype, the clearance between

the rubber tire and the concave was adjusted by raising or lowering the rubber tire frame in a

vertical direction along four slots of the main frame. This method was not practical for field

operations. In the final design, the clearance can be adjusted at only one point .One end of the

rubber tire frame is pivoted to the main frame. The bolt on the main frame is threaded, onto

which the hole on the other end of the rubber tire frame is placed. Adjusting of the clearance

is done by adding or removing flat washer(s) onto or out of the bolt. Finer clearance

adjustment can be accomplished by adjusting a nut

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.

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CHAPTER-4

FUTURE MODIFICATION

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FUTURE MODIFICATION

The existing model of sheller can be modified to obtain high efficiency and get the

groundnut shelled easily,fast, and lesser breakage value.This can be achieved by different

methods on base of this operation or some other. Other method possible are universal nut

sheller, wooden sheller or the crusher sheller. The sheller is further upgrated with the special

attachment of Sieving method by which the different size groundnut can be separated . This

process is the most effective and cheap. This process is describe as follows

SIEVING

Sieving is a simple and convenient technique of separating particles of different sizes. A

small sieve such as that used for sifting flour has very small holes which allow very fine flour

particles to pass through . The coarse particles are retained in the sieve or are broken up by

grinding against the screen windows. Depending upon the types of particles to be separated,

sieves with different type of holes are used. It is also used to separate stones from sand

MECHANICAL VIBRATORY SIEVING

Mechanical vibratory sieves also commonly referred to as gyratory separators or

screening machines. They classify nuts by separating them by particle size through a screen

mesh .Using a combination of horizontal and vertical movement by means of cam and

plunger; they separate the, nuts over screen in controlled flow patterns and stratify the

product. There are three main functions a vibratory sieve or separator can achieve:

1. Check/safety screening: used for quality assurance by checking

2. For foreign contaminants and oversized material removing them from product.

3. Grading/sizing screening: used to grade or classify material into different partial sizes.

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4. Recovery screening: used to recover valuable materials in the waste stream for use.

ATTACHMENT

The groundnut after shelling is obtained in different sizes. This is difficult to use it

directly so to make it simple the separator is attached with the sheller.

The separation processes can be done by different types hand sorting, automatic

sorting, gravity separator, step riddle separation.

WORKING PRINCIPLE OF STEP RIDDLE SEPRATION

The step riddle consist of 2 wire mesh of different sizes, the upper wire mesh is larger

in size and the lower mesh is smaller in sizes, the size of the wire mesh is to be decided by

taking the size of the groundnut size into account. Upper wire mesh and lower wire mesh are

oppositely angled so the flow of the product will be to easy.

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The wire mesh are fitted on the frame of separator in such a way that the

vibration motion given to the upper mesh is take by the lower mesh too. A cam is used to

obtain the vibration in separator.

The cam and a plunger, the plunger is attached fixed to the frame and the cam with

the hand turner to attain the circular motion of the cam and make the separator vibrate so the

different size of groundnuts are separated.

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CHAPTER-5

ADVANTAGES, DISADVANTAGES

& APPLICATIONS

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ADVANTAGES, DISADVANTAGES & APPLICATIONS

ADVANTAGES

1) It requires no power for its operation

2) It is easy in maintance

3) It requires no skill for its operation being performed

4) It is cheap as compared to other Sheller

DISADVANTAGES

1) Sometimes the groundnuts break into pieces

2) Manually operated so no fluctuation speed of tire resulting into stucking of peanuts in

wire mesh.

APPLICATIONS

1) Can be used in small industries

2) Used in farms

3) Where large amount of groundnut is to be shelled

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CHAPTER-6

MAINTENANCE

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MAINTANCE

No machine in the universe is 100% maintenance free machine. Due to its continuous

use its is undergoing waer and tear of the crushing parts. The rubber tyer and wire mesh is

continuously subjected to bending and wear.

AUTONOMOUS MAINTANCE ACTIVITY

1) Conducting initial cleaning and inspection

2) Eliminate sources of dirt, derbris, excess lubrication etc.

3) Improve cleaning maintainability

4) Understand equipment functioning

5) Develop inspection skills

6) Develop standard checklist

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CLAIR CLEANING, LUBRICATING, ADJUSTMENT,

INSPECTION

CLEANING

Why cleaning?

Prevent or eliminate contamination.

Find ways to simplify the cleaning process.

Facilitates through inspection when done by knowledgeable operators and \ or

maintainers.

CLEANING IS INSPECTION….

Clean

Look at and touch every Free equipment

Detect

deterioration and

Identify

difficulties to

Remarkable

sources of

Normal

Or

Expose hidden

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CLEANING PROCESS

What to look for when cleaning?

Missing part Wear

Rust and corrosion Noise

Cracks Proper alignment

Leaks Play or sloppiness

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VISUAL AIDS TO MAINTAIN CORRECT EQUIPMENT

CONDITION

Match marks on nut and bolts

Color marking of permissible operating ranges on dials and gauges

Marking of fluid type and flow direction of pipes

Marking at open / closed position on valves

Labeling at lubrication inlets and tube type

Marking minimum / maximum fluid levels

Label inspection sequences

ADJUST & MINOR REPAIR

Minor repairs if

Trained

Experienced

Performs safety

Simple tool required

Not longer than 20/30 minutes

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CHRONIC DEFECTS

CHRON

IC

LOSS IS LOSS IS

Remedial Remedial Remedial

EQUIPMENT IMPROVEMENT

Restore obvious deterioration throughout.

Establish plan select pilot area , determine bottleneck.

Study and understand the production process.

Establish goals for improvement.

Clarify the problem, collect the reference manuals contact resources.

Conduct evaluation through such techniques as RCM analysis, FMECA, FTA

(Root cause failure analysis).

Determine improvement priorities, costs and benefits.

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Execute improvement in pilot area standardize technique and document what you

have done.

Monitor results and optimize based on those results.

EQUIPMENT RESPONSIBILITIES OF OPERATOR

Operation with the proper standard procedure.

Failure prevention. Failure resolution.

Inspection. Equipment up keep.

Cleaning. Lubricating.

Lightning fastener Minor repairs.

Trouble shooting.

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CHAPTER-7

PRECAUTION AND SAFETY MEASURES

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CHAPTER-7

PRECAUTION AND SAFETY MEASURES

Following are the precautions and safety measure are taken to make our creation a grand

success.

PRECAUTION:-

1) The rubber tier should be rotated in the constant speed.

2) Alignment of rubber tier and wire mesh should be properlt done.

3) Alignment of turning handle and rubber tier should be perfect.

4) The system should be robustly designed..

SAFETY MEASURES:-

1) Do not touch the wire mesh while rubber tire is in motion.

2) Do not try to stop the rubber tier immediately with your hands.

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CHAPTER-8

COST ESTIMATION

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COST ESTIMATION

The machine tool designer must furnish the management with an idea of how much

tooling will cost, and how much monwy the production methods save over a specified run.

This information is generally furnished if a form of cost worksheets. By referring to the cost

worksheets the final cost of the machine is calculated.

Cost estimation is defined as the process of forecasting expenses that are incurred

to manufacture a product. The expense take into account all expenditure involved in

designing and manufacturing with all the related services facilities such as material handling,

heat treatment and surface coating, as well as portion of general administrative and selling

costs.

NEED OF COST ESTIMATION:

1) Determined the selling price of a product for a quotation or contract, sa as to ensure a

reasonable profit top the company.

2) Check the quotations supplied to the vendors

3) Decide whether a part or assembly is economical to be manufactured in the plant or is

to be purchased from outside

4) Determine the most economical process or material to manufacture a product.

5) To determine standards of production performance that may be used to control costs.

ELEMENTS OF COST ENCOUNTERED IN THE PROJECT

The cost encountered in this project are material cost, labour cost ,cost of standard

parts, designing cost and the cost of indirect expenses.

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MATERIAL COST:

The material cost can be calculated by finding the total volume of the material used and

the weight of the material. For calculation the value and the weight, the following procedure

is adopted:

a) In actual procedure there are some holes and shapes cut. But they are considered to be

solid while calculating the total volume of material used.

b) While calculating the volume the triangle shaped parts T shaped parts are considered

as rectangle or square parts.

c) The weight of the parts is calculated by multiplying the toatal volume and the density

of the material (M.S) which is equal to 7.76665 X 10 ^-3 Kg/Cc.

d) The total cost can be obtained by multiplying the total weight by the rate of material .

RAW MATERAIL AND STANDARS MATERAIAL COST:

SR NO PART NAME RATE Q

TY

TOTAL

1 FRAME

ANGLE 25X25X5mm

68 Rs/Kg 13

Kg

884

2 RUBBER TIER 450Rs 1 450

3 TURNING HANDLE 290Rs 1 290

4 BEARING 360Rs 2 720

5 WIRE MESH 150/per Ft 2

Ft

300

6 GALVANISED STEEL

SHEET

60

Rs/Sq.Ft

7

Sq.ft

420

7 FASTENING

(NUT,BOLT,WASHER)

560

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DIRECT LABOUR COST:

SR NO OPERATION HOURS RATE PER

HOUR

AMOUNT

1 CUTTING 3 200 600

2 FITTING 4 200 800

3 DRILLING 1 250 250

4 GRINDING 1 200 200

5 ASSEMBLY 3 250 750

INDIRECT COST

TRANSPOARTATION COST = 500

COOLENT & LUBRICANT = 100

DRAWING COST = 400

PROJCET REPORT COST= 1500

TOTAL COST:

Raw material cost + std.parts cost + direct labour cost + indirect cost

Total cost of project = 3624 + 2600 +2500

Total cost of project = 8727/-

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CHAPTER-9

BIBLIOGRAPHY

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CHAPTER-9

BIBLIOGRAPHY

Following different references are taken while collection and manufacturing

literature and project

1) Workshop technology

2) www.google.com

3) www.wikipedia.com

4) www.farmtech.com

5) Youtube.com

6) http://www.farmradio.org/radio-resource-packs/package-39-creative-gardening/the-

rubber-tire-groundnut-sheller/

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ACKNOWLEDGEMENT

We would like to take this opportunity to acknowledge the whole hearted support

extended to us by K. J. SOMAIYA POLYTECHNIC, Mumbai – 400077.

We would like to express our sincere sense of gratitude towards our project guide Shri

A.V.Bhange

who gave us the valuable guidance & all the required facilities for successfully

completion of the project.

We are thankful for providing us the necessary help & material for completion of project.

We are also thankful to for giving us the information regarding groundnut sheller.

We are also grateful to the facilities of Mechanical Engineering Department of K. J.

Somaiya Polytechnic, Mumbai. We thank our HOD Prof. P. J. SEBASTIAN for their

guidance & valuable advice. We are indeed obliged by their constant support &

encouragement.

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