Seed-pushing and air-blowing combined high-speed precise seed-metering device

Abstract

The invention belongs to the technical field of agricultural machinery, and relates to a seed-pushing and air-blowing combined high-speed precise seed-metering device. The seed-metering device mainly comprises a seed box, seed-metering single bodies and a rack, wherein the seed box is fixed on supporting plates on two sides of the rack; the seed-metering single bodies are mounted on a front beam and a rear beam of the rack; and each seed-metering single body is composed of a seed disc, an outer disc, an outer disc fixing frame, a seed pushing device, a spring mounting frame, an outer ring air injection device, a motor-driven rotating wheel device, a seed guiding device and a spring. The one-time seed-metering amount is determined by designing the size of a seed filling area; the seed-metering speed and the movement of the seed pushing device are adjusted by controlling the rotating speed of rotating wheels and the stretching of the springs; and nozzle blocking rods mounted on the seed pushing devices are matched with nozzles of the outer ring air injection devices, so that synchronous work of seed pushing, seed blowing, seed filling and air closing is realized. The seed-pushing and air-blowing combined high-speed precise seed-metering device provided by the invention is simple in structure and reasonable in design, and can effectively solve the problems of high working consumption and low seed-metering speed of an existing seed-metering device, so that precise sowing operation and high-speed sowing operation are realized.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to a high-speed precision seed metering device combined with seed pushing and air blowing. Background technique [0002] Precision sowing is a sowing method in which crop seeds are sown into the seedbed according to the precise sowing amount, row spacing and sowing depth. Precision seeding has the following outstanding advantages, such as: saving seeds, uniform seeding, reasonable plant spacing, increased yield, etc. The key is a seeding device that can achieve high-speed and stable seeding, and its performance will directly affect the quality and efficiency of seeding . The air-blowing precision seeder can achieve more accurate sowing of large-particle seeds, and the seed damage rate is lower. The main working principle of the traditional air-blowing precision seed metering device is that the seeds complete the seeding operation under the action of gravity and air ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of complex structure and slow seeding speed of the air-blowing precision seed metering device described in the background technology, to achieve the effect of optimizing seed metering, and to provide a high-speed precision seed metering device combining seed pushing and air blowing, It is characterized in that the high-speed precision seed metering device is mainly composed of the electronic control system to control the circular motion of the motor-driven runner, the linear reciprocating motion of the seed pushing device, the stretching motion of the spring, and the jetting and air-holding of the nozzle;

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