Seed metering device capable of automatically clearing seeds

Abstract

The invention relates to the technical field of sowing equipment, and discloses a seed metering device capable of automatically clearing seeds. The seed metering device comprises a seed metering wheel, a track shell and a seed sowing hopper; the track shell possesses an annular track chamber, and the track chamber possesses an inner-loop opening; the seed metering wheel comprises a spoke wheel and multiple seed distribution plates which are distributed in the track chamber of the track shell at intervals, and adjacent, two seed distribution plates, the inner-loop plate and the track shell form a seed distribution chamber; multiple spokes are arranged along the circumferential direction of the spoke wheel, and the spoke wheel drives the seed distribution plates to move along the track chamber through the spokes; the inner-loop opening of the track chamber is provided with an inner-loop plate; the front side of each seed distribution plate is provided with a seed ladling spoon; the track shell is provided with a seed inlet and a seed pouring port, and the seed inlet is fan-shaped; and the seed sowing hopper is installed at the seed inlet and forms a fan-shaped chamber at the seed inlet. The seed metering device performs seed clearing without depending on external force, guarantees that seeds are not damaged in the seed clearing process, and is suitable for sowing of germination-accelerated seeds.

Description

technical field [0001] The invention relates to the technical field of sowing equipment, in particular to a self-clearing seed metering device. Background technique [0002] my country is a country with a large population, and China's grain production cannot be ignored at any time. On the other hand, cotton is a strategic material of China's important agriculture. It is not only an important agricultural raw material for the textile and garment industry and product exports to earn foreign exchange, but also a staple cash crop for farmers to increase their income. In view of the international and domestic market demand, China is determined to be a major cotton planting country. The status of China is also unshakable. How to produce enough grain and cotton on limited arable land is the top priority of China's planting industry. However, considering the fact that Chinese people have more land and less land, it is necessary to implement double-cropping or multi-cropping planting...

AI Technical Summary

Problems solved by technology

[0003] Invention Patent Publication CN1070078A discloses an internal filling type self-clearing seed metering device, which is filled with inverted conical grooves on the seed metering wheel, and the grooves have a radial direction according to the force analysis. The force makes the seeds squeeze on the shell, which is easy to damage the seeds, and the seeding area is approximately horizontal, and there is a void rate when it is low, and it is not easy to seed when the seeding wheel rotates at a high speed

The utility model patent CN2884840Y discloses a kind of self-clearing seed metering device with internal filling, but the self-clearing seed metering device relies on the seed-protecting separation knife to push the redundant seeds away from the seed-loading hole

Since the above patents rely on external force for forced filling or seeding, there will be a pressing force on the seeds, so it is not suitable for sowing germinated seeds that are easily damaged.

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