Furrow rotary excavating cutter disc and double-disc furrow rotary excavating device

Abstract

The invention discloses a furrow rotary excavating cutter disc. The furrow rotary excavating cutter disc comprises a cutter disc body, a shaft hole, a cutter and notches. The shaft hole is formed in the center of the cutter disc body. The cutter disc body is circular and the notches are evenly formed in the periphery of the cutter disc body at intervals, so that the structure that the notches and the outer end face of the periphery are evenly distributed in an alternating mode is formed; the cutter perpendicular to the cutter disc body is arranged on the outer end face of the periphery in the radial direction. The device is high in structural strength, high in cutting efficiency and capable of rapidly throwing cut soil out of a furrow, and therefore the furrow which is large in depth, not prone to collapse and small in soil returning amount and is provided with flat furrow banks is formed. The invention further provides a double-disc furrow rotary excavating device.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a ditch rotary digging cutterhead and a double-disc ditch rotary digging device using the cutterhead. Background technique [0002] Cassava is one of the three major potato crops in the world, the food that more than 600 million people in the world depend on for survival, and it is also one of the important starch raw materials and excellent biomass energy crops. Traditional cassava planting is mainly manual, with low yield and low efficiency. In order to meet the ever-increasing demand for biomass energy, mechanization of cassava production is an inevitable choice. Large-scale cassava planting enterprises have tried mechanized sowing and harvesting operations in southern my country, Southeast Asia, Africa and other regions. However, the research and development of many cassava production machinery related technologies is still in its infancy. [0003] Due to the ...

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Problems solved by technology

[0003] Due to the long rainy season and heavy rainfall in cassava planting areas in South China and Southeast Asia, the drainage problem has always been a problem that plagues local farmers. Due to the lack of ideal ridging and ditching equipment, no matter whether it is manually excavated furrows or fixed plowshares pulled by tractors All the ridges dug have disadvantages such as severe return of soil, shallow depth (only 20-30CM), and easy collapse.

As a result, when the rainy season comes, cassava plants will be flooded and production will be reduced due to the inability to drain the rainwater in time

In addition to the problem of shallow furrows when using ordinary cassava seeders, if the plowing layer is thick and the soil is soft, the ground wheel is easy to slip and the frame is not positioned stably, which will cause problems such as chaotic planting spacing, incomplete soil covering and frequent exposure of seeds, which cannot be used normally.

[0004] The ditch dredging machine in the prior art is more professionally used in ditching and ditch cleaning in farmland than the cassava seeding machine, but the cutting effect of the cutting blade of the cutterhead of the ditch dredging machine in the prior art Insufficient, when encountering hard soil, it is difficult to cut, and the strength of the cutter is not enough, so it is easy to break; and the soil throwing board is easy to accumulate soil, which is not conducive to the cut soil leaving the cutter head and the furrow, resulting in the smooth wall of the ditch, which is easy to collapse and return. There is a lot of soil; at the same time, the transmission layout of the ditch dredger in the prior art has a poor bearing capacity. Due to the difference in soft and hard geology during operation, it is very easy to cause torque overload, thereby damaging the transmission mechanism, and the operation is reliable. Poor sex

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