Rotary tiller product classification and development trend

First, the horizontal axis type: has a strong ability to break the soil, and is mostly used for the cultivation of shrub land, swamp land and grass wasteland. The working parts include a rotary cutter roller and a plurality of cutting blades uniformly arranged according to the multi-head spiral, which are driven by the tractor power output shaft through a transmission device, and the common rotation speed is 190 to 280 rpm. The direction of rotation of the knife roll is generally the same as the direction in which the tractor wheel rotates. The cutting blade cuts the soil layer from front to back and throws the clods back and up onto the casing and the carriage to further break. When the knife roll cuts the soil and throws the soil, the reaction force of the soil on the knife roll helps to push the unit forward. Therefore, the horizontal rotary tiller requires little traction during operation, and sometimes the unit can be pushed forward by the knife roll.

The cutting blade can be divided into a chisel knife, a machete, a right angle knife and a curved knife. The front end of the chisel-shaped knife is narrower, has better ability to enter the earth, and has low energy consumption, but is easy to entangle the grass, and is mostly used in vegetable gardens and courtyards with few weeds. The curved edge of the machete has a sliding effect, which is easy to cut the grass roots without entanglement, and is suitable for paddy field farming. Right-angled knives - with vertical and horizontal cutting edges, the blade is wide, rigid and easy to manufacture, but the soil is poor. The curved knife has high strength, good rigidity and good sliding action, and is usually used on a heavy-duty rotary tiller. When it is used with tractors below 15 kW, it is generally connected directly without universal joint transmission; when it is matched with tractors of 15 kW or more, it adopts three-point suspension type and universal joint transmission; heavy-duty rotary cultivators generally adopt traction type.