Rotavator

1. Rotavator Case Study By: Sarah John

2. Rotavator Rotavator is a tractor drive rotary tillage implement, It use to plow the land by a series of blades that cuts, pulverizes, mixes and level the soil in a single pass, rotavator helps to conserve soil moisture and pulverizes soil up-to 6 inches of depth. It also called rotary tiller, it could be a most economically and effectively be used tool for replacement the cultivator, harrow and leveler. Rotavator is used as a primary cum secondary tillage implement.

3. Rotavator Uses • Rotavator used to prepare the farming land suitable for sowing. • Tractor Rotavator also use for destroying weeds • Rotavator is ideal for smooth & speedy preparation for root Mixing fertilizer or compost into the soil crops, grain crops, orchards & cash crops. • Rotary Tiller increases the soil potency by mixing the residue of crops like wheat, cotton, sugarcane, and paddy. • Rotavator saves ours in time & fuel. Lesser wear & tear of the tractor as the soil preparation is accomplished in one or two passes. • It conserves soil moisture & helps water distribution management as tilling can be done immediately after harvesting the previous crop • Tillage depth varies according to the moisture level of the soil. • Tractor Rotavator use as a primary cum secondary tillage machine.

4. Types of blade used in rotavator Different types of blades are used for different field conditions: A. L-shaped blade: Most common as the shape is superior to others in heavy thrash. They are better to kill weeds and generally cause less soil pulverisation. B. C-shapes blade: Penetrating hard ground is easier with these blades. They are more curved than L-shaped blades and are recommended for heavy, wet soils because they have fewer tendencies to clog. C. Long shank blade: They have longer shank than the L-shaped blade and can be used for deeper cultivation. D. Speed blade: Especially suitable for penetrating the hard ground and for mixing heavy thrash. Have fewer tendencies to clog in wet condition. E. Straight knife blade: These simply slice through the soil to aerate and loosen grass, eliminate soil compaction and improve moisture penetration. The primary application is for lawns, parks and golf courses.

5. Power transmission in a rotavator The rotavator takes the power directly from the tractor PTO through a shielded double universal joint shaft to the rotor gearbox. The power requirement for the tiller is about three times as much as that for the mould board ploughs. Tractors for these units should have 40 HP (PTO) per meter width. The gearbox has a crown wheel and pinion, part of the interchangeable spur gear and a rotor engagement clutch alters the rotor speed by transposing or changing the pairs of spur gears. Generally, there are two pairs of gears to obtain four rotor speeds. Multiple plate clutch is provided before power input to the gearbox. The drive from the gearbox is then transmitted to the rotor shaft. Depending on the machine design and the operating width, the drive may be either from the center or offset. Drive from the center reduces the number of components as the power is transmitted via directly from the PTO shaft through the gearbox to the rotor shaft while in the offset drive the power from the gearbox is transmitted via a transverse shaft to gears or sprockets & finally to the rotor shaft.

6. Application of rotavator 1. Chopping and mixing: Rotavator with its chopping and mixing ability is ideal for crops such as maize, sorghum, tobacco, sugarcane, cotton, rice etc. The thrash mixed evenly throughout the soil adds valuable humus to the land. 2. Tilling and Planting: To reduce further operations, many rotavators may be equipped with a toolbar mounted planter or a hitch for towing a planter for tillage and planting operations. By rearranging blades on the rotor shaft, the rotavator may be used for strip tillage in the seedbed. 3. Fertilizer and chemicals: may be incorporated by spreading in bands or broadcast from tanks or hopper on the tractor or rotavator by broadcasting ahead of the implement. The stirring, mixing action of the rotavator provides excellent incorporation of pre-emergent chemicals. 4. Cultivating: By rearranging the blade flanges on the rotor shaft, most tillers may be used for row crop cultivation. Rotor diameter and operating depth are limiting factors in the size of plants that may safely be cultivated in this manner.

7. Application of rotavator 5. Orchard Tilling: Rotavators are used in vineyards, citrus groves and orchards because it is easy to control operating depth to prevent damage to trees or vine roots. They provide sufficient mulch to conserve moisture. Some rotavator models are built for offset operations. The offset permits working under trees. 6. Rice field: Rotavators are adapted to work in wet rice fields. The rotating blades help push the tractor forward and reduce wheel slippage, where it would be difficult to gain traction for plough and disc operations. Heavy rice straw may be chopped and mixed with the soil to improve fertility and soil structure. 7. Weed control: As many as 3-5 passes at 2-3 weeks interval may be required to completely eradicate annual and. perennial weeds. Operate the rotavator with a fast rotor speed and the shield raised so that the roots are thrown on the surface to die. 8. Pasture renovation: Pasture renovation with a rotary tiller involves breaking up and kills the sod, mixing residues in the soil, incorporation of fertilizers and herbicides. Levelling of the surface and preparation of seedbed.

8. Types of Rotavator • There are many types of rotavator available in the market as per the different size and different soil conditions- • Robust Series • Regular series rotavator • Hobby Series rotavator • Mini-Series Rotavator • Beroni Series Rotavator • Side Shifting Rotary Tiller • Stick Shift Rotary Tiller

9. Parts of rotavator • Rotavator Blades. • Rotavator Side Plates. • Rotavator Yoke. • PTO Shafts. • Rotavator Gear. • Side Gear. • Tractor Spare Parts. • Tiller Blades.

10. Rotavator Market is Booming Worldwide

11. Article Source http://chirkutidea.com/rotavator/ https://www.fieldking.com/product-portfolio/rotary-tiller/robust-series/robust-multi-speed/ http://onlystudybyte.com/rotavator-overview/

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