Field of the invention:

The present invention relates to novel design of a machine for spreading fertilizer. The invention more specifically relates to a low cost solar powered machine for spreading fertiliser.
Background / prior art:
India is traditionally very rich in farming. Most of the people are depends upon the agriculture earning. But due to the less availability and costly labor the forming is challenging to all technocrats and engineers to make it profitable and fashionable business. It is reality that our farmers are still doing farming in old traditional ways like fertilizer spreading by conventional method. Fertilizer broadcasting requires more human efforts and time to spread uniformly over the entire field. So by this invention our farmers will get an easier and less human fatigue to spread fertilizer over entire field in less time. This invention is economical and fashionable for Indian formers and world as whole.
For large scale farming tractor mounted fertilizer spreaders are used. But it is not suitable for small scale and also not possible to buy costly tractor mounted fertilizer spreaders for small scale farming. Hand spreading has some problems like uneven spreading of fertilizer, more time consuming, high human effort.
There are no such solution available for this spreading problem for small scale farming. So this invention solves these problems for small scale farming in which most of Indian farmers are lying.
Followings are few examples of related art in this area.

DE2843487A1 discloses the agricultural spreading machine is especially for fertiliser or seed. It comprises a supply container with a conveyor-metering device and a thrower disc for broadcasting. The drive of the conveyor-metering device and the drive of the thrower disc are both speed-controllable electric motors. The speeds of the motors are identified in a central control unit from the valves given by hand and sensors and are automatically held at a required valve.

GB2159683A discloses a machine for spreading particulate products, e.g. fertilizer, has a hopper (31), a containment plate (32) and a pair of spreading discs (14, 15). The product in the hopper is mixed by stirring members and the feed through the containment plate to the discs is variable by varying the degree to which covering plates cover discharging orifices (40) in the plate 32. Adjustable vanes (16) are provided on the discs for adjusting the direction and width of the product distribution, and there are also means for adjusting the height of the machine relative to the ground. Mechanical and hydraulic control devices are provided which are actuated and controlled by a tractor unit to which the machine is attached.

A non patent literature titled DESIGN AND DEVELOPMENT OF FERTILIZER SPREADER MACHINE over a fallow land by dropping the fertilizer over the impeller disc. India is agricultural based country. Our economy is also depends on agricultural related product. In the recent days it has been found that farmers are unable to grain more crop production by use of conventional agricultural methods. This project is based on manually fertilization process. A method is generated to spread the fertilizer The project design divided in to three level, top level, middle level, bottom level. Top level consists a solar module. Middle level consist a hopper, impeller disc, motor. The bottom level consists tires. The whole design is supported by frame and column. The present invention discloses a design that is compact and no support is required; and it can be carried by a farmer himself.

However; the design is unique and compact. None of the prior art discloses the same. The Therefore, to the best of our knowledge, none of the above mentioned prior art attempts, individually or collectively, proposed the system and embodiments indicated and disclosed by the present invention.

Objective of the invention:
The primary objective of the present invention is to minimize the labor cost.
Further objective of the present invention is to reduces the time of spreading fertilizers
Further objective of the present invention is to maintains the uniformity of spreading fertilizers

Further objective of the present invention is to Easy in operation and maintenance.

Further objective of the present invention to use the abundantly available solar energy.

Further objective of the present invention to be used in remote place.

Brief Description of the Invention:
The present invention describes an alternative way/solution of spreading fertilizers, granule etc. But through this invention even distribution along with less effort and less time the work can be done in fascinating manner. The machine discloses an embedded system of fertilizer machine with a solar panel, storage tank and impeller disc as described in Fig. 1.

Brief Description of the Figures:
The invention is described herein based on the description

Fig 1 illustrates the design which disclose a solar panel; a storage device and impeller disc- basically a 3-D CAD Model Design of Fertilizer Spreading Machine
Fig. 2 Real picture of Fabricated Fertilizer Spreading Machine
Fig 3: Hopper
Fig4: Rotating Disc
Fig 5: Frame Structure
Fig 6: Dc Motor 12 V
Fig 7: Solar panel 10W Fig 8: Battery
Fig 9: Belt
Fig10: Back Support Cover
Fig 11: Photo of Blades or Fins

Detailed description of the invention with reference to the accompanying drawings:
The present -invention discloses an alternative way/solution of spreading fertilizers, granule etc. in the field. But through this invention even distribution along with less effort and less time the work can be done in fascinating manner.

In a preferred embodiment, the machine illustrates storage tank enclosed with impeller disc embedded system with battery motor arrangement. The machine used solar panel for energy spreading

In the preferred embodiment, weight of the Spreading Machine varies 11 kg (can be reduce up to 5-6 kg) ; Height - 60cm and Width -30cm Speed of spreading disc 590 rpm (Max) and 100 Rpm (Min); Storage capacity - Dimension of hopper
Length = 15-17 inch ; Height = 12inch = 30cm ;Width = 12inch = 30cm ; Capacity = 15 to 20 Kg; Power Source- Battery with solar panel charging.; Battery Rating:
Rated output voltage 12V; Rated output current 7A; Weight 2.2Kg

Solar Panel Electrical Rating:
Rated Maximum Power (0~ +4.99Wp) (Rmpp) 10W
Open Circuit Voltage (Voc) 21.70 V

Frame

• The frame works are supporting structure.
• The frame is carry whole weight and forces of the machine.
• The Aluminum material used for making a frame.

Specification
• Width of each plate = 5cm
• Thickness of each plate = 0.4cm
Motor
• Motor is prime mover of machine system which is used to supply power.
• Dc motor is an electric motor converts electrical energy into mechanical motion.
• In this machine motor is used for to rotate a rotating disc.
• RPM = 700 (rated)
Solar Panel
• Solar panels are devices that convert light into DC electricity.
• It is used for charging the battery in this project.
• It is assembled on top of hopper.
• It is adjustable on frame.
Specification solar panel
Model: ELDORA 10P
Electrical Rating
Rated Maximum Power (0~ +4.99Wp) (Pmpp) 10 W
Open Circuit Voltage (Voc) 21.70 V
Short Circuit current (Iac) 0.67A
Rated Voltage (Vmpp) 17.20V
Rated current (Impp) 0.60A

Note- All power specification is measured at standard test condition. Insolation 1000W/m2, AM 1.5, 25 degree centigrade cell temperature.

Battery
A dry rechargeable battery is used to supplies electrical current to the motor.
Specifications
Rated output voltage : 12V
Rated output current : 7A
Weight : 2.2Kg

Belts
Lifting Belts ensures safe carrying and lifting of machine. Materials of belts is polyester textile carcass fabric plies are bonded with iron brackets.

Back Support cover
It is made of jute composite material. The use of the cover is to protect back of farmers from fertilizer dust at the time of spreading.
Blades (Fins)
Blades are engaged with rotating disc on top. The fins in the spreader disk direct the fertilizer to different directions.

In the preferred embodiment, following describe the machine in details
Hopper
• Storage space is used to keep fertilizer.
• Shaped so that used for convey the fertilizer to the rotating disc.
• Cross section of the tank is trapezoidal shape.
• Flow control valve mechanism below storage tank.

Specification
(A) Dimension of upper portion of hopper
• Length = 15 inch =38cm
• Height = 12inch = 30cm
• Width = 12inch = 30cm
(B) Dimension of bottom of hopper
Bottom opening is circular in shape
Radius: 47cm
Storage and carrying Capacity
The storing capacity of this hopper for fertilizers by weight in kilograms is depends on the density of fertilizers which is approx varies from 15kg to 20kg.
Rotating disc for spreading
• Rotating disc is straight blade impeller.
• Mounted on motor shaft.
• Circular Hopper opening is on rotating disc slightly eccentrically and due to centrifugal force fertilizer spreads.
(A) Material and size
Rotating disc material is Ply Wood.
Blades: Are Mild steel sheet L shape
(B) Specification
• Blades length = 93mm
• Thickness of blade = 0.8mm
C) Calculation
In another embodiment, calculation for Location of impeller disc on column is mentioned as follows:-
• The following equation gives the estimate of action of the fertilization travel in the air according to location of impeller disc on column.
• Following equation helps to determine location of disc.

Where:
H = horizontal distance that the fertilizer travel in to the air.
A = vertical height column at disc is located.
r = radius of the disc = 13.97cm
? = angle in degree.
The target of the spreading the fertilizer is 6.0 m to 9.0 m, according to this vertical height gap is 25.0 cm. The angle is lies between 30 degree to 60 degree.

II Calculation of weight of rotating disc:-
• The rotating disc is made out from wood.
• Rotating disc is circular in shape.
• For calculating weight of rotating disc the following formula is used:-

Where,
d = diameter of rotating disc.
t = thickness of rotating disc.
? = density of wood.
g = 9.81 m/s^2

Input parameters
d = 27.94cm
t = .47cm
? = 0.43 g/cm^3
After putting all input parameters in above equation weight of rotating disc is obtained and its value is w = 3.42 N.

In a preferred embodiment, the machine works on the principle of centrifugal force produced by rotating impeller disc. The hopper as storing tank, in which the fertilizer is stored, is placed above the impeller in way that the fertilizer will fall right above the spreader disc. The amount of fertilizer to be spreaded in all direction is metered using the adjustable opening. That means flow of fertilizer from the hopper can be controlled manually as required. After opening is adjusted to required level, the granular fertilizer is poured onto the impeller disk. The fins or vanes fitted on the high RPM rotating disk push force due to centrifugal motion that spreads fertilizer to different directions. Thus fertilizer is spreaded to different directions evenly.
Also, hard back supportable cover is provided at the back to avoid the spreading of fertilizer to back of farmer’s body and support the frame to hang machine on farmers back comfortably.
Land Cover -5.5 hectare/hour (at maximum speed)
1.3 hectare/hour (at minimum speed)
In conventional method of fertilizer spreading, farmers carry heavy bags in hand throughout the spreading process to scatter granular or bulk fertilizer on the ground. That is not comfortable and obstructing the work as carrying and spreading is done by the hands only but in this invention carrying load on the shoulder and hands are free to operate the control valve bottom and solar panel provide shadow on the head which will protect from the sun and rain along with generation of power to operate the machine. So this machine will be the great boon for the Indian farmers.
Advantages
• Compact design of machine
• Light weight
• Less cost
• User friendly
• Eco-friendly
• Onsite power generation
The present invention is advantageous for
• All type of granular fertilizers in the field.
• Wheat, Paddy, Maize, etc. seeds can be also spread in the field.

Different embodiments of the invention are possible to achieve the best method of performance and to obtain the effective device as describes. It will be understood that the invention may be carried out into practice by skilled persons with many modifications, variations and adaptations without departing from its spirit or exceeding the scope of the claims in describing the invention for the purpose of illustration. It is also to be noted that the present invention is susceptible to modifications, adaptations and changes by those skilled in the art. Such variant embodiments employing the concepts and features of this invention are intended to be within the scope of the present invention, which is further set forth under the following claims.

We claim:

1. An improved Fertilizer Spreading Machine (1) comprises of
- Frame
- storage tank/Hopper
- impeller disc
- solar panel
- Belts
- Blades.

2. An improved Fertiliser Spreading Machine as claimed in 1 wherein the machine is compact in design and weight of the machine varies 6.0 -11.0 kg and hard back supportable cover (2) is provided at the back to avoid the spreading of fertilizer to farmer’s body and support the frame to hang machine on farmers back comfortably.

3. An improved Fertiliser Spreading Machine as claimed in 1 where in spreading through impeller disc of rotational speed 100-590 rpm.

4. An improved Fertilizer Spreading Machine as claimed in 1 wherein solar power is used as power source within rated output voltage 12V.

5. Methodology of spreading fertilizer(1)
- Collecting fertilizer from storage tank
- Falling the fertilizer on impeller disc
- Spreading on impeller disc
- Rotating the impeller disc
- Dispersing the sample at equal distribution.

6. Methodology of spreading fertilizer (1) as claimed in 5 wherein the machine works on the principle of centrifugal force produced by rotating impeller disc.

7. Methodology of spreading fertilizer (1) as claimed in 5 wherein the amount of fertilizer to be spreaded in all direction is metered using the adjustable opening.

8. Methodology of spreading fertilizer (1) as claimed in 5 wherein flow of fertilizer from the hopper can be controlled manually as required.

9. Methodology of spreading fertilizer (1) as claimed in 5 wherein the fins or vanes fitted on the high RPM rotating disk push force due to centrifugal motion that spreads fertilizer to different directions.

10. Methodology of spreading fertilizer (1) as claimed in 5 wherein opening is adjusted to required level and the granular fertilizer is poured onto the impeller disk.