TRAKTÖRÜN ARKASINDA YÜRÜYEN GÜÇ YEKE EL YÜRÜYÜŞLÜ DÖNER ROTAVATÖR 3D Model

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Model Info
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More Information About 3D Model :
A **Walk-Behind Tractor** (WBT), frequently referred to as a **Two-Wheel Tractor** or colloquially as a **Hand Walking Tractor** or **Power Tiller**, is a highly versatile, single-axle agricultural machine designed for small-scale farming and horticulture. This apparatus functions as a prime mover, providing motive power to a wide range of interchangeable implements, the most common of which is the **Rotary Rotavator** (or simply Rotavator/Rotary Tiller), used for primary and secondary soil preparation.

### Nomenclature and Classification

The varied terminology reflects the machine’s function and regional prevalence. In formal engineering contexts, the term "Two-Wheel Tractor" or "Walk-Behind Tractor" designates the core chassis and power unit. The term "Power Tiller" is frequently used generically to describe the combined unit when equipped with a rotary attachment, although this can be misleading as the WBT can power equipment unrelated to tillage, such as plows, mowers, water pumps, and trailers. The **Rotavator** is the specific implement that utilizes L-shaped or C-shaped blades attached to a horizontal shaft to mechanically churn and pulverize the soil.

### Mechanical Design and Operation

The WBT generally consists of three main components: a power unit, a transmission/clutch assembly, and handlebars.

1. **Power Unit:** Most models are powered by single-cylinder, air-cooled or water-cooled diesel engines, though smaller units may employ gasoline (petrol) engines. Engine output typically ranges from 5 to 20 horsepower.
2. **Transmission:** A robust gearbox provides multiple forward speeds, reverse gears, and neutral. The operator steers the machine by maneuvering the large handlebars, which control the direction of the non-differential drive wheels.
3. **Power Take-Off (PTO):** A critical feature is the dedicated PTO shaft, which transmits mechanical power from the engine and transmission to external implements, such as the rotary tiller attachment. This PTO enables implements to operate at high rotational speeds independent of the machine’s ground speed.

### Functionality as a Rotary Rotavator

When configured as a power tiller, the rotary rotavator attachment is mounted directly behind the engine housing, driven by the PTO. The blades rotate rapidly, cutting, breaking, and mixing the soil in a single pass. This process achieves efficient seedbed preparation by:

* **Pulverization:** Breaking up clods and large soil structures.
* **Incorporation:** Mixing crop residues, fertilizers, and organic matter into the topsoil layer.
* **Weed Control:** Chopping and burying existing vegetation.

The depth of tillage is controlled by adjusting a depth skid or drag bar located at the rear of the rotavator housing.

### Operational Context and Global Significance

Walk-Behind Tractors are crucial mechanized implements, particularly in regions dominated by smallholder agriculture, such as Southeast Asia, South Asia, and parts of Africa. Their relatively low cost, fuel efficiency, portability, and maneuverability in confined spaces (terraces, paddy fields, between rows) make them economically and physically superior alternatives to larger, four-wheel tractors. They significantly reduce the human labor required for traditional manual or animal-based farming practices, enhancing productivity and allowing for timely completion of seasonal tasks.

In paddy cultivation, specialized WBT models, often equipped with cages or lug wheels, are used for puddling—the process of churning saturated soil to create an impermeable layer necessary for rice transplantation.

KEYWORDS: Two-Wheel Tractor, Power Tiller, Rotary Rotavator, Hand Tractor, Walk-Behind, Single-Axle, PTO, Tillage, Seedbed Preparation, Smallholder Farming, Agricultural Machinery, Hand Walking Tractor, Cultivator, Engine, Diesel, Transmission, Handlebars, Farm Equipment, Soil Pulverization, Puddling, Rice Cultivation, Mechanization, Implement, Clutch, Gearbox, Axle, Horticulture, Garden Tiller, Agricultural Engineering, Crop Residue.