grasscutter ppt.ppt
- 2. A grass cutter is a machine that uses sliding blades to cut a lawn at an even length. Even more sophisticated devices are there in every field. Power consumption becomes essential for future. The DC to DC buck boost converter helps to step up the DC voltage from store the DC voltage in a battery. It is an automated system for the purpose of grass cutting.
- 3. The main components of the solar powered grass cutter are Rechargeable Batteries DC motor Iron squared channel section Wheels Toggle Switch Blades
- 4. The design of an electrical lawn mower contents a blades, bed knife, body frame, wheels, push handle, bag, & motor . The power system there are many Options, but we are using rechargeable battery powered motor, which is attached to the cutting blades. Sizing the battery will depend on what we are powering, specifically the motors. Like batteries, there is a range of motors to choose from. We went with 36 volt motor with integrated gear heads. Cutter deck housing — This houses the blade and the drive system of the mower. It is shaped to effectively eject the grass clippings from the mower. Blade mounting and drive system — The blade of a rotary mower is usually mounted directly to the motor shaft. Mower blade — A rotary mower generally has two blades that rotates horizontally. The blade features edges that slightly curved up to generate a continuous air flow as the blade rotates, thus creating a sucking and tearing action.
- 5. Although many early machines had two blades, the three-blade concept gradually became dominant during the late 1980s.That type of blades very useful in grass cutting like applications. The cyclic forces impose significant stresses on several parts of the structure and these forces are much lower when a three-blade, as the asymmetric forces encountered as the rotor rotates are much less.
- 6. Grass Cutter specifications: 12 v DC Motor , 4500 rpm 12 v rechargeable battery 3 blades high speed cutter 280 mm Diameter
- 7. The speed controller works by varying the average voltage sent to the motor. It could do this by simply adjusting the voltage sent to the motor, but this is quite inefficient to do. A better way is to switch the motor's supply on and off very quickly. If the switching is fast enough, the motor doesn't notice it, it only notices the average effect.
- 8. Blade - Consist of numerous blades that are attached to a rotating shaft. The blades rotate, creating a cutting motion. Bed knife - Is the stationary cutting mechanism of a mower. Body frame - The main structural frame of the mower onto which the other parts of the mower are mounted. Wheels - These help propel the mower in action. Generally, our lawn mowers have four wheels. Motor - The power source of a lawn mower that is powered by Battery & We are using small DC motor .
- 9. In grass cutter use a single DC motor that will spin faster than the drive motors We won’t attach a real blade unless operated outside due to safety concerns
- 10. No fuel consumption No. of reciprocating parts are less Compact size and portable Easy to move from one place to another place Operating principle is simple. Non-skilled person also operate this machine
- 11. There are several types of mowers, each suited to a particular scale and purpose. The smaller types are pushed by human user and are suitable for small residential lawns and gardens. Lawn mowers are widely used in all sports grounds. Lawn mowers become a more efficient alternative to the domesticated grazing animals. It is widely used to cut small grasses & it can also be used for cutting small plants and also used for trimming grass of play grounds and sports ground.
- 12. This Grass cutter mower will meet the challenge of environmental production and low cost of operation since there is no cost for fueling. A 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 lawn mowers.