Seed falling mechanism of strip-shaped seed precision seeding device and precision seeding device

Abstract

The invention discloses a seed falling mechanism of a strip-shaped seed precision seeding device and the precision seeding device. The seed falling mechanism comprises a fixed seat, a seed falling element and a seedling tray supporting body. Seed inlet holes arranged in a square array are formed in the upper end surface of the seed falling element, and seed outlet holes arranged in a square arrayare formed in the lower end surface of the seed falling element. The specification size of the seed outlet holes is greater than that of the seed inlet holes; the transverse and longitudinal array step pitches of the seed inlet holes are smaller than those of the seed outlet holes; seed falling channels for communicating the seed inlet holes with the seed outlet holes in a one-to-one correspondence manner are also formed in the seed falling element; and the seedling tray supporting body is arranged below the seed falling element. According to the seed falling mechanism, the seed falling element is arranged, the seed falling channels which are large in upper part and small in lower part and are formed in the seed falling element can put seeds from corresponding seed metering holes into seedholes in a seedling tray, and when the precision seeding device operates, the seed falling element only needs to be fixedly mounted because the outer contours of the seed metering holes do not exceedthe outer contours of the corresponding seed inlet holes all the time, the seed falling element does not need to move along with a seed box, the stability is high, and mechanical vibration can be reduced.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a seed dropping mechanism and a precision sowing device of a strip-shaped seed precision sowing device. Background technique [0002] First of all, it should be noted that the content in the background technology is not necessarily the prior art. [0003] For the circular motion seed precision sowing device, it mainly performs the sorting operation through the seeding holes arranged in an array on the bottom plate of the seed box, and the seed box moves in translation along a circular track. The seed holes also move in translation along a circular trajectory. In this way, the positions of the seeds discharged from the seed holes are uncertain. Finally, there are seed holes arranged in an array in the seedling tray that receives the seeds, and the distribution of the seed holes is very large. It is relatively difficult to guide the seeds discharged in all the seedi...

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Problems solved by technology

[0003] For the circular moving seed precision sowing device, it mainly performs the sorting operation through the seeding holes arranged in an array on the bottom plate of the seed box, and the seed box moves in translation along a circular track. In this case, the holes on the bottom plate of the seed box Each seeding hole also moves in translation along a circular trajectory. In this way, the position of the seeds discharged from the seeding hole is uncertain. Finally, there are seed holes arranged in an array in the seedling tray receiving the seeds, and the distribution of the seed holes is very large. dense, it is difficult to guide the seeds discharged from all the seeding holes to the various seed holes in the seedling tray and it is difficult to maintain stability

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