Air-suction seeder for small and medium-sized seeds

Abstract

The invention discloses an air-suction seeder for small and medium-sized seeds, which belongs to the technical field of agricultural machinery. The shell of the compressed air chamber is fixedly installed on the frame of the seeder. There is an air chamber inside the shell of the negative pressure air chamber. The top of the shell of the negative pressure air chamber is provided with a negative pressure air passage. The seed tray and the seed-discharging tray are driven and rotated by a motor. The seed-discharging tray is uniformly provided with a circular array of seed-suction air channels, and the bottom of the seed-suction air channel is equipped with a seed-suction air nozzle. The seed box and the seed-discharge pipe are fixedly installed On both sides of the seed tray, the outlet at the bottom of the seed box is provided with a seed filling slideway, and an air flow barrier is installed on the side wall of the air chamber. The invention utilizes the mode of negative pressure seed suction to carry out the seed transportation, the transportation is stable and efficient, effectively reduces the damage of the seeds and the phenomenon of missed sowing and reseeding, and guarantees the seeding efficiency of the seeder.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to an air-suction seeder for small and medium-sized seeds. Background technique [0002] With the rapid development of domestic agricultural machinery sowing technology, the requirements for precision sowing are getting higher and higher. According to the requirements of modern agricultural technology, the sowing machine should be as multifunctional as possible, that is, it can meet the sowing needs of various seeds at the same time, so that Small-scale agricultural machinery can be better promoted and used by farmers to reduce labor intensity and improve seeding efficiency, and it should have an automatic detection function to reduce the rate of missed seeding of seeders and reduce farmers' losses. [0003] At present, due to the long airway distance of conventional air suction seeders, and the air suction generally adopts fast airflow, when the airflow passes through the airw...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the long airway distance of conventional air suction seeders, and the air suction generally adopts fast airflow, when the airflow passes through the airway quickly, the shaft airway will have serious loss along the way. If multiple seeding wheels are simultaneously The seeding wheel at the end of the airway has poor seed suction effect; for a single seeding wheel, due to the large diameter of the airway of the rotating shaft, the design diameter of the seeding wheel is large, and each airway connected to the hole Due to the long distance from the air passage of the rotating shaft, the adsorption effect on the seeds is not ideal. To avoid the above problems, a high-power air pump is required, which will excessively increase the manufacturing cost and cannot be used in normal agricultural work.

At the same time, due to the different sizes of the seeds, smaller seeds may be stuck in the air passage connected to the suction hole, causing the seed wheel to be blocked and affecting the seed metering efficiency of the seed meter.

Images