Seed screening device based on agriculture

Abstract

The invention discloses a seed screening device based on agriculture. The seed screening device comprises a rack, wherein a screening barrel is installed in the middle of the rack, a discharging plate is welded to the bottom of the screening barrel, a feeding assembly is installed at the top of the rack, a feeding plate is welded to the top of the rack, and a feeding hole is formed in the middle of the side end of the feeding plate in a penetrating mode. According to the seed screening device, the feeding plate, the feeding hole, a mounting groove, a mounting hole, a positioning rod, a first stop rod, a connecting rod and a guide plate are arranged, seeds penetrate through a gap between the first stop rod and a second stop rod, large weeds are blocked, the seeds roll into the screening barrel from the feeding hole, the connecting rod and the second stop rod are pulled upwards along a positioning hole, so that the second stop rod is taken out from the positioning rod, the blocking at the position of the feeding hole is reduced, the gap is enlarged, the large seeds can penetrate through the gap, the weeds can be conveniently screened out, the seeds with different sizes can be screened, multi-time screening is realized, and the screening is more detailed.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to an agricultural-based seed screening device. Background technique [0002] my country is a large agricultural country, and the technology of planting crops is relatively advanced. Before planting, it is necessary to screen the seeds. Seed screening is one of the methods of crop seed cleaning. The seeds are sieved with different sieve hole sizes and shapes to screen out the seeds. For medium inclusions (mud, sand and gravel, seeds of different crops, weed seeds, galls, lemma shells, etc.), chaff and small seeds, choose high-quality seeds that are large, plump and neat to improve seed quality; [0003] However, when the seed screening device currently used in agriculture screens the seeds, it usually uses the screening net of the screening device to screen the impurities uniformly. Not only is the screening not fine enough, but the screened impurities are not classifi...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a seed screening device based on agriculture, which can effectively solve the above-mentioned background technology. When the seed screening device currently used in agriculture screens seeds, the screening net of the screening device is usually used to uniformly screen impurities. Not only the screening is not fine enough, but also the screened impurities are not classified. There are many impurities screened on the top of the screen, which are easy to accumulate on the surface of the screen, which will affect the later screening.

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