Horizontal circular motion type hybrid rice low-sowing-amount precise seed metering device

Abstract

The invention discloses a horizontal circular motion type hybrid rice low-sowing-amount precise seed metering device. The device comprises a base, a seed metering assembly, a seed box driving mechanism and a seed falling mechanism. The seed metering assembly comprises a seed box, an upper blocking mechanism and a lower blocking mechanism; a plurality of seed metering holes for accommodating seedsare formed in a bottom plate of the seed box; the upper blocking mechanism and the lower blocking mechanism are respectively used for blocking the upper sides and the lower sides of all the seed metering holes; the seed box driving mechanism is used for driving the seed box to translate along a circular track; and the seed falling mechanism is used for receiving the seeds from the seed metering holes, guiding the seeds and putting the seeds into a seedling tray. according to the seed metering device, the seed box, the upper blocking mechanism and the lower blocking mechanism included in the seed metering assembly move cooperatively, so that seed filling and seed metering operation can be realized; the seed box driving mechanism drives the seed box to do horizontal circular motion, so thatthe seeds in the seed box can move to ensure the sufficiency of seed filling; and the seed falling mechanism can guide the seeds from each seed metering hole into various holes in the seedling tray.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a horizontal circular movement type precision seeding device for low seeding rate of hybrid rice. Background technique [0002] Precision sowing device is the key equipment to realize precision sowing operation, and its performance is directly related to the yield and quality of crop production. At present, there are three types of precision seeding devices: mechanical, air suction and vibration. Mechanical seeders mainly use grooved wheel type, socket wheel type and convex head type as the core working parts. They have simple structure and low cost, but the uniformity of sowing is poor, the amount of seed used is large, and there are many damaged seeds, so it is impossible to achieve single-grain precision sowing. Air-suction seeding devices mainly include needle-suction type, suction cup type, air-suction drum type, etc., which can realize single-grain precision seeding, ...

AI Technical Summary

Problems solved by technology

Mechanical seeders mainly use grooved wheel type, socket wheel type and convex head type as the core working parts. They have simple structure and low cost, but the sowing uniformity is poor, the amount of seed used is large, and there are many damages, so it is impossible to achieve single-grain precision sowing.

Air-suction seeding devices mainly include needle-suction type, suction cup type, air-suction roller type, etc., which can realize single-grain precision seeding, but the structure is complex, the production cost is high, and the suction hole is easy to block

The vibratory seeding device can be divided into electromagnetic vibration type and pneumatic vibration type. It has the characteristics of simple structure, no damage to seeds, and adjustable seeding rate. However, there are many factors that affect the seeding speed, including seed shape, amplitude, frequency, and vibration direction. angle, inclination angle of the seeding tray, etc., will directly affect the continuity and uniformity of the seed flow in each V-shaped groove in the seeding tray, and there will be phenomenon of flow interruption and seed falling, which will affect the sowing accuracy

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