Driving-guiding self-seed-sorting air-suction type precision seed arrangement device

Abstract

The present invention discloses a driving-guiding self-seed-sorting air-suction type precise seed arrangement device and relates to the field of agricultural machinery. Based on principles of mechanical seed disturbance, driving-guiding auxiliary seed filling, cooperative seed carrying and self-weight seed-sorting, seed-taking mechanisms and seed-sorting mechanisms are also innovatively designed.The driving-guiding self-seed-sorting air-suction type precise seed arrangement device mainly comprises a seed arrangement device shell body, a seed arrangement disc, a seed protection device and a shaft. An outer circumference of the seed arrangement disc is uniformly provided with a curved seed guiding rail and a special-shaped groove, and the special-shaped groove consists of V-shaped projections, S-shaped self-seed-sorting projections and shaped holes; and during seed taking, the curved seed guiding rail can drive the seeds to actively move along a curved direction of the rail, the seeds are orderly arranged and filled into the special-shaped groove, the redundant seeds in the groove move forwards under an ejection action of the S-shaped self-seed-sorting protrusions and fall back to aseed chamber under the action of gravity, so that the self-seed-sorting is realized. The driving-guiding self-seed-sorting air-suction type precise seed arrangement device can effectively adapt to appearances and sizes of seeds, reduce indexes of reseeding and miss-seeding, negative pressure energy consumption and seed damages, and improve seed filling performance and single-seed precision-seeding qualification indexes.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a self-clearing air-suction precision seed metering device suitable for large and medium-sized seeds such as peanuts, cotton, corn, and soybeans. Background technique [0002] Precision seeding technology can separate a precise number of seeds from the seed box, and sow them into the soil according to a specific spacing between plants and rows. It has become the main way of planting peanuts, cotton and other crops. The precision seed meter is the key component to realize the precision seeding technology, and good working performance is the premise to ensure the working quality of the seeder. Existing seed meters are mainly divided into two categories: mechanical and pneumatic. Mechanical seeding has high requirements on the shape of seeds, it is difficult to control the number of seeds filled each time, and it is easy to cause mechanical damage to seeds; pneumat...

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Problems solved by technology

Mechanical seeding has high requirements on the shape of seeds, it is difficult to control the number of seeds filled each time, and it is easy to cause mechanical damage to seeds; pneumatic seeding has problems such as high fan energy consumption, high reseeding rate and missed seeding rate

Moreover, the current seed cleaning device of the precision seed metering device is mainly based on the scraping type and the brush to clear the seeds, which may easily cause mechanical damage to the seeds, affect the germination rate of the seeds, and have poor safety, and the brushes are frequently replaced, making it difficult to It is suitable for seed cleaning of peanuts and other seeds with thin and easily damaged seed coats

[0003] For the mechanical seed metering device, the shape and size of the seeds are high, and the filling accuracy is low. The air suction seed metering device sows large, medium-sized seeds with low adsorption rate, high reseeding and missed seeding rates, and high fan energy consumption. , the clearing device is easy to cause mechanical damage to the seeds, and the safety is poor. A self-clearing gas based on the principle of "mechanical seed disturbance + driving auxiliary seed filling + cooperative seed carrying + self-weight clearing" was invented. The suction precision seed metering device can effectively adapt to the shape and size of the seeds, reduce the reseeding, missed sowing index, negative pressure energy consumption and seed damage index, improve the filling performance and the qualified index of single seed precision sowing of the seed metering device, and realize the accuracy of crops. Increasing production and income is of great significance to the development of my country's agricultural modernization

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