Seed discharging device for seeder

Abstract

The invention provides a seed discharging device for a seeder. The seed discharging device comprises a seed discharging box and a seat arranged below the seed discharging box, wherein an outlet is formed in the bottom of the seed discharging box; a seed blocking brush is arranged on one side of the outlet; a seed discharging wheel assembly is mounted in the seat and comprises a center shaft used for being connected with a seeder drive mechanism and an adjustable wheel set which is mounted on the center shaft and rotates with the center shaft; the adjustable wheel set comprises a fixed wheel and an adjusting wheel, a plurality of tooth grooves are formed in the circumferential side surface of the fixed wheel, a blocking disc is arranged on the end surface, the fixed wheel is sleeved with the adjusting wheel, the adjusting wheel is provided with racks matched with the tooth grooves, the axial direction of the adjusting wheel is adjustable, a plurality of openings for receiving seeds falling from the seed discharging box are uniformly distributed in the positions, corresponding to the tooth grooves, of the circumferential edge of the block disc of the fixed wheel and the positions, corresponding to the racks, of the circumferential edge of the adjusting wheel, and the notches formed in the blocking disc are communicated with the corresponding tooth grooves. The seed discharging device is high in universality, can be placed on different types of seeders for use, and can be conveniently adjusted to meet different seed discharging demands.

Description

technical field [0001] The invention mainly relates to the technical field related to agricultural seeders, in particular to a seed metering device for the seeder. Background technique [0002] The seeder can realize the automatic sowing of seeds in the farmland, which can greatly improve the sowing efficiency. The seed metering device used in the seeder is used to arrange the seeds to ensure the spacing between the seeds when sowing. Although there are various types of seeders for different seed types, the principle of the seed meter basically adopts the rotation of the sowing wheel to bring the seeds out of the sowing box one by one to achieve sowing. The seed metering device in the traditional structure generally has the following disadvantages: [0003] Because the seeds are of various types and sizes, the number of seeds required is different, and the types of seed metering devices are also diverse. For each type of seed, a corresponding seed metering device is requir...

AI Technical Summary

Problems solved by technology

[0003] Because the seeds are of various types and sizes, the number of seeds required is different, and the types of seed metering devices are also diverse. For each type of seed, a corresponding seed metering device is required. The size and quantity of seed particles that can be sown are fixed, and the general performance Poor; during the seeding process of the seed metering device, the distance between adjacent seeds is fixed, and on-site adaptive adjustment cannot be performed, and even some structures that can adjust the seed distance still have the problem of inconvenient operation; Conducive to production, processing and installation

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