Technical field

The invention belongs to the technical field of agricultural seeder, in particular relates to an automatic quantitative seed adding device for a precision seeder.

Background technique

Sowing is an important link in the process of agricultural production. With the rapid development of economy and society, the continuous progress of agricultural science and technology, and the implementation of precision agriculture, higher requirements are put forward for sowing quality. Seeder is the main means to realize mechanized precision seeding, its performance directly affects the quality of seeding and the growth of crops and yield. The seedling cultivation precision seeder matched with the invention is an air-suction vibrating precision seeder, which can overcome many shortcomings of the mechanical sowing device, has no strict requirements on the geometric size of seeds, is easy to achieve single seed on demand, and has the advantages of high operation speed, low seed damage rate, etc. In the sowing process, the air-sucking vibrating precision seeder has strict requirements on the seed layer thickness of seed tray, and the seed layer thickness must be kept in a precise range. If it is not within the scope, it will not be able to make the seed group realize "boiling" motion under the vibration, which will inevitably cause some sucker holes not to absorb the seeds, leading to sowing holes. This requires an automatic quantitative seed adding device which keep seeds layer thickness in the required range in a seed adding cycle, so that the seeds in the vibrating seed tray of the seeder can keep the "boiling" motion state, which ensures the precision sowing requirements of the air suction vibration precision seeder.

The invention relates to an automatic quantitative seed adding device for a precision seeder, which can realize automatic quantitative and precise seed adding, and the amount of seed adding can be set quantitatively according to needs. Structure design is reasonable, equipped with rubber bending plate and cavernoid protective layer, causing low damage to seeds. One seeding can make the seeder work for a long time, and provide conditions for field seedling precision sowing of air suction vibration disc type.

The invention has the advantages of:

(1) It can realize automatic quantitative seed adding; adding amount can be set according to seed suction, improving the automation degree of the seeder.

(2) The structure design is reasonable and equipped with rubber bending plate and cavernosum protective layer: the damage degree of seeds is low, and one time of seeding can make the seeder working longer, so that the sowing efficiency is greatly improved.

(3) The device has the advantages of simple structure, easy control, low processing cost and high adding precision.