manually operated groundnut shelling machine

8/10/2019 Manually Operated Groundnut Shelling Machine

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Manually operated

Groundnut Sheller machine

Introduction

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 consists mainly

of a main frame, a rubber tire, a concave, and a hopper. The rubber tire usedwas a worn out rubber tire to avoid slip during operation.


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Need for Project :-

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 rural areas and in small

industries its necessary to have a economical and high efficiency machine

which can easily break the groundnut shell without any electrical supply

needed.

Big commercial systems are simply too expensive for our target market. 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(Universal Nut sheller) is

also a good low cost alternative, but it requires the builder to have molds tomake the concrete components. If the builder has access to fibreglass 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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Working Principle :-

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.

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. Afterthe 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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Design:-


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The main components of manually operated groundnut sheller

machine :-

1. Main frame

2. Rubber tyre frame

3. Rubber tyre

4. Concave

5. Cover

6. Hopper

7. Trough

8. Bearing

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 where large amount of groundnut are to be shelled.


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manually operated groundnut shelling machine

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