Small seed dual-purpose type built-in cone double-circular platform ring-type gas distribution mechanism

Abstract

The invention belongs to the technical field of agricultural machinery sowing, and specifically relates to a small-grain seed dual-purpose embedded cone-shaped double-circle ring-type air distribution mechanism, which includes an air flow access pipe, an air distribution mechanism housing, and an air distribution pipe. The mechanism housing includes three parts: a high round table tube, a short round table tube and an inverted cone. The outer surface of the short round table tube is evenly distributed on the circumference of a plurality of air distribution pipes connected with the special-shaped through-tube body. Compared with the prior art, the present invention has the following advantages: by rationally designing the structure of the airflow access pipe, the housing of the gas distribution mechanism and the airflow distribution pipe, the airflow is smoothly transitioned from the cylindrical section to the annular channel, and finally the seeds flow out evenly and steadily with the airflow The air distribution mechanism and multiple air distribution pipes realize the equal distribution of air flow in multiple directions, thereby ensuring the efficiency of small seeds of different shapes flowing out with the air flow; the overall structure is regular, and the integrated structure is easy to process, which can effectively control the processing cost. for promotional use.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery sowing, and in particular relates to a small-grain seed double-purpose type embedded cone double-circle ring-type air distribution mechanism. Background technique [0002] Small seeds refer to seeds with a sphericity of not less than 80% and an average particle size of not more than 3mm, which mainly include rapeseed, millet, alfalfa, flowers, and some vegetable seeds. Due to the small diameter, weak shearing resistance and large difference in seeding rate, the direct seeding machine is an important way to improve the production efficiency and fertilizer utilization efficiency of small seeds. It directly determines the quality of the planting density; the existing precision combined direct seeding machines usually use an in-line multi-channel air distribution mechanism for multi-channel air distribution, and a single pneumatic precision metering device is arranged and combined to ac...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing air distribution mechanism has serious airflow loss due to unreasonable structure, which will affect the consistency of seed discharge in the case of poor ground flatness in the field, and provides a small seed dual-purpose embedded cone Double circular table ring type gas distribution mechanism

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