Air suction and mechanical auxiliary planting combined type corn precision seed-metering device and seed metering method thereof

Abstract

The invention relates to an air suction and mechanical auxiliary planting combined type corn precision seed-metering device and a seed metering method thereof. The air suction and mechanical auxiliary planting combined type corn precision seed-metering device is characterized by comprising a round bottom casing provided with an air suction port and an air pipe, an inner cavity of the bottom casing is provided with a sealing gasket with an arc-shaped groove, and the air suction port is located in the arc-shaped groove. One side of a seed metering plate is rotatably attached to a side wall of the arc-shaped groove, the other side of the seed metering plate is provided with a seed supporting plate, the seed metering plate is a disk with the circumference provided with a plurality of round suction holes, the seed supporting plate is an annular plate with the circumference provided with a plurality of indent clamping openings, and each round suction hole corresponds to each indent clamping opening in a one-to-one mode. The seed metering plate is driven by a transmission mechanism to rotate relative to the bottom casing, and an upper cover is arranged on the outer side of the seed metering plate and fixed on the bottom casing. A cavity arranged between the upper cover and the seed metering plate is divided into a seed filling area, a seed clearing area and a seed metering area, a seed clearing knife is arranged in the seed clearing area, and a seed discharging knife and a seed guiding plate are arranged in the seed metering area. The air suction and mechanical auxiliary planting combined type corn precision seed-metering device is simple in structure, can effectively solve the problems that an air suction type seed-metering device is high in seeding absence rate and the seeding absence at the edge of a field is severe, and can be widely applied to a corn precision seeding process.

Description

technical field [0001] The invention relates to a seed metering device and a seed metering method thereof, in particular to a corn precision metering device combined with air suction and mechanical auxiliary seed attachment and a seed metering method thereof. Background technique [0002] Maize mechanized precision sowing has the advantages of saving improved seeds, eliminating artificial thinning, increasing corn yield, and realizing cost-saving and income-increasing. In recent years, the mechanized precision seeding of corn has become the main development direction of corn sowing, and the precision seed metering device with stable and reliable performance, which can adapt to high-speed operation is the key to realize the precise sowing of corn mechanization. Simple mechanical precision seed metering devices, such as spoon wheel seed metering devices, use mechanical spoon claws to pick seeds, which can achieve precise seeding at low speeds, but cannot adapt to high-speed op...

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Problems solved by technology

[0003] In view of the above problems, the purpose of the present invention is to provide a kind of high-speed precision sowing of corn seeds, which can effectively solve the problems of high missed seeding rate of air-suction seed metering device and serious missed seeding in the ground. Combined precision corn metering device and its seeding method

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