Air-blowing rice seed-metering device capable of synchronously and dynamically regulating seed storage quantity and seed cleaning quantity of shell seed cavity

By designing an automatic control mechanism that synchronizes the storage volume of the shell seed cavity and the clearing volume in the air-blown rice seed discharger, the problem of the inability to adjust the content of the seed cavity in real time in the prior art is solved, efficient and automatic seed discharge is achieved, and operation quality and energy efficiency are improved.

CN119631660APending Publication Date: 2025-03-18NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202510022980.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The existing air-blowed seed dischargers cannot automatically control and adjust the content of the shell cavity in real time, resulting in excessive or leakage of seeds, reducing operational quality and energy efficiency.

Method used

An air-blown rice seed discharger is designed to synchronize the seed storage volume and the seed clearance volume in the shell seed cavity, and real-time synchronous adjustment of the seed storage volume and the seed clearance volume is achieved through the combination of automatic control mechanism.

Benefits of technology

Real-time automatic control of the seed storage and seed clearance of seed chambers is achieved, wind energy is saved, replay rate and leakage rate are reduced, and the operation quality and effect of the air blowing seed discharger are improved.

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Abstract

The invention discloses an air-blowing rice seed-metering device capable of synchronously and dynamically regulating seed storage quantity and seed cleaning quantity of a shell seed cavity, and belongs to agricultural machinery. The end cover is fixedly arranged on the circular groove type shell, the driving shaft is rotatably inserted on the circular groove type shell and the end cover, and the seed filling and discharging disc is fixedly arranged on the driving shaft in the circular groove type shell; a seed storage quantity and seed clearing quantity regulating and controlling mechanism consisting of arc-shaped sealing plates A and B, tension springs A and B, an eccentric wheel A, a pull rod, rack pull rods A and B, guide rails A and B, cylindrical gears A and B, an upper seed clearing knife and a lower seed clearing knife is arranged in the circular groove type shell; the outer wall surface of the end cover is provided with a seed feeding amount adjusting mechanism and an air sealing mechanism, wherein the seed feeding amount adjusting mechanism consists of a right-angle push rod, a push rod D, a rack push rod, cylindrical gears D and C, a cam, an eccentric wheel B, a push rod C, a circular inner gear ring drive plate, a cylindrical gear E and a rack type seed inlet opening degree adjusting plate; according to the device, the seed storage amount and the seed clearing amount are integrally and synchronously adjusted, the reseeding rate and the miss-seeding rate are greatly reduced, the adjusting and controlling effect is good, and the automation degree is high.
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