6th sem final grass cutter.ppt
- 1. ABSTRACT • A grass cutter is a machine that uses blade to cut a lawn at an even length. Power consumption becomes essential for future. Grass cutter is a very useful device which is very simple in construction. It is used to maintain and upkeep lawns in gardens, schools, college’s etc. • We have made some changes in the existing machine to make its application easier at reduced cost. Our main aim in pollution control is attained through this. Unskilled operation can operate easily and maintain the lawn very fine and uniform surface look. In our project, Grass cutter is used to cut the different grasses for the different application. 1
- 2. OBJECTIVE The main objectives of this project are: To save energy. To cut the grass required height. To design and develop machine. 2
- 4. WORKING OF PROJECT • Electrical energy is stored in batteries .The motor is connected to the batteries through connecting wires. Switch is connected between motor and battery. Switch is used to start and stop the working of the motor. • From this motor, motor rotor shaft is connected to the blade .when switch on the power transmits to the mechanism and this makes the blade rotate and cut the grass.Also we can adjust blade height for cutting grass. • The operator just needs to push the machine in which ever direction he needs then he just needs to switch on the motor as soon as the motor is switch on the cutting action gets activated and these blades are been attached to the shaft of the motor as the blade gets mesh up with the grass the grass gets cut. 4
- 5. PARTS OF PROJECT 5 Sr. No. Components Material Dimension 1 Main stand Mild steel L=700MM B=500MM H=400MM 2 Blade Adjustable stand Mild steel L=125MM B=25MM 3 Shaft Mild steel D=10 MM L=150MM 4 Blade Stainless steel L=150MM B=25MM T=02MM 5 Bearing Stainless steel D=40MM 6 wheel Rubber D=100MM 7 Motor 12v dc - 8 Battery 12v,7AH - 9 wire P.v.c. - 10 switch Plastic -
- 6. COST ESTIMATION . 6 No. Components Cost Rs. 1 Main stand 1400 /- 2 Blade adjustable Stand 600 /- 3 Shaft 200/- 4 Blade 200/- 6 wheel 200/- 7 Motor 1200/- 8 Battery 1000/- 9 wire 20/- 10 switch 40/- TOTAL 4860/-
- 7. MAIN STAND It is used to support the whole structure. 7
- 8. BLADE ADJUSTABLE STAND • It is used for adjust of blade at required height. 8
- 9. SHAFT A shaft is a rotating machine element which is used transfer power from one place to another. The shaft clamped between the iron frame works and the freewheeling type bearing attached to the shaft. The freewheeling bearing rotates only in on direction. 9
- 10. BLADE blade consist of stainless steel that are attached to a vertically rotating shaft, to the downward direction. The blades rotate, creating a cutting motion. It’s important to cut lawn with a sharp blade at adjustable height. 10
- 11. BEARING A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. 11
- 12. WHEEL A Base Frame with Four Wheels of the grass cutter. The wheels having rubber gripped, for better moving on grass. 12
- 13. DC MOTOR An electric motor is an electrical machine that converts electrical energy into mechanical energy. It is used to rotate the Blade. 13
- 14. BATTERY It is used to start the motor with the help of switch.it is also used to store the electricity. 14
- 15. WIRE • It is used to connect the battery to the motor and solar plate. 15
- 16. SWITCH It is used to on/off the Motor. 16
- 17. ADVANTAGES • Time required for process is less. • Number of workers required is less. • simple to use. • Unskilled worker can also use machine. • It is environment friendly • Reliable, Economical, Eco-Friendly. • No need of fuel input. 17
- 18. DISADVANTAGES • Intial cost is high. • In Rainy season operation difficult. • Manual effort is required for machine rolling. 18
- 19. APPLICATION • For cricket ground. • The football ground. • All garden. • All Playground. 19
- 20. CONCLUSION • This project is more suitable for a common man as it is having much more advantages i.e, no fuel cost, no pollution and no fuel residue, less wear and tear because of less number of moving components and this can be operated As we are nearer to Equator, the solar energy (non- conventional energy) is vastly available, so it is easy to charge the battery and is also pollution free. • But the initial investments of the solar powered grass cutter is high. This system is having facility of charging the batteries while the solar powered grass cutter is in motion. So it is much more suitable for grass cutting also. The same thing can be operated in night time also, as there is a facility to charge these batteries in day light. 20
- 21. FUTURE SCOPE • This project will made through Automation base. • we can also use wireless operating mechanism in our project in future. • It can be easily modified into automation base so cutting time decrease. • This project run by solar energy system. 21
- 22. REFRENCE • Everett G, Improvement in Lawn-Mowers, United State Patent Office, Vol. 6, 1869, Pp. 305-306. • Mary Bellis, Greener Pastures – History of the Lawn Mower, Inventors.about.com, 2011. • Hessayon D G, the Lawn Expert, Tran’s world Publishers, London, 2007. • Bincy Abhraham, Darsana P S ,Isabella Sebastian, “Solar Powered Fully Automated Grass Cutting Machine Machine” • Bidgar Pravin Dilip, Nikhil Bapu Pagar, Vickey S. Ugale, Sandip Wani, Prof. Sharmila M. “Design and Implementation of Automatic Solar Grass Cutter” 22
- 23. THANK YOU 23 23