Air suction-scoop combined small-particle-size precise seed sowing device

Abstract

The invention relates to the field of agricultural machines, in particular to an air suction-scoop combined small-particle-size precise seed sowing device. In the using process, a seed plate is drivento rotate, a seed scoop sequentially passes through a seed scooping region, a seed sucking region, a seed clearing region, a seed carrying region and a seed putting region, the seed scooping region is staggered with an air suction chamber, the seed sucking region, the seed clearing region and the seed carrying region correspond to the air suction chamber, and the seed putting region is located outside a shell. When the seed scoop passes through the seed sucking region, seeds on the seed scoop are sucked by adsorbing holes by means of negative pressure in the air suction chamber; the seeds, not adsorbed by the adsorbing holes, on the seed scoop are not supported any more under the action of gravity, break away from the seed scoop and fall back to a seed chamber when the seed scoop passes through the seed clearing region; when the seeds adsorbed on the adsorbing holes pass through the seed putting region, the seeds in the adsorbing holes are not adsorbed and fall off to conduct seed putting as the seed putting region is located out of the shell, then the links of seed scooping, seed sucking, seed clearing, seed carrying and seed putting are completed, and precise and stable seed sowing is achieved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a small-diameter precision seed metering device mainly suitable for the combination of air suction and scoop for millet, quinoa, rape, sesame, some vegetables, flowers and forestry seeds. Background technique [0002] Small-sized seeds are widely planted in my country, such as millet, quinoa, rape, etc. The traditional sowing methods of such crops are drill or hole sowing. With the advancement of agricultural technology and the improvement of breeding technology, traditional sowing methods have problems such as wasting seeds and high labor costs for thinning. Therefore, the development of precision sowing of small-size seeds is of great significance. At present, precision seed metering devices are mainly divided into two categories: mechanical type and air suction type. The mechanical type and air suction type seed metering devices take seeds directly from the seed...

AI Technical Summary

Problems solved by technology

With the advancement of agricultural technology and the improvement of breeding technology, there are problems such as wasting seeds and high labor costs for thinning seedlings in traditional sowing methods, so the development of precision sowing of small particle size seeds is of great significance

At present, precision seed metering devices are mainly divided into two categories: mechanical type and air suction type. The mechanical type and air suction type seed metering devices take seeds directly from the seed room and then plant them, which cannot be realized for small particle size seeds. Precise control of the number of holes, and some mechanical seed meters have a high rate of damage to small-sized seeds, which is difficult to meet the sowing needs of modern agriculture for small-sized seeds

In the air-suction seed metering device, due to the small floating speed of small-sized seeds, they are more sensitive to fluctuations in vacuum negative pressure, and the thickness of the suction plate is larger than the size of the seeds, so there are problems in the actual use of small-sized seeds. Poor sowing stability of particle size seeds, suction hole clogging and seed damage, etc.

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