Inside-filling accurate-quantification seed metering device

Abstract

The invention relates to an inside-filling accurate-quantification seed metering device. The inside-filling accurate-quantification seed metering device comprises a housing, a seed-storage plate arranged in the housing, an arc seed-protection plate arranged at the seed-storage plate, a seed-discharge port close to the end of the seed-protection plate is arranged at a sidewall of the housing, a seed-metering plate is arranged between the housing and the seed-storage plate, seed holes are circumferentially arranged at a peripheral plate of the seed-metering plate, a roller passes through an initial end of the seed-storage plate close to the seed-protection plate, a rolling hairbrush is arranged at a front end of the roller, a driven gear is arranged at a rear end of the roller, a driving gear engaged with the driven gear is arranged at center of the front transverse plane of the seed-metering plate, a seed-metering wheel is arranged at the front transverse plane of the seed-storage plateclose to the seed-metering port, cylindrical seed-metering tooth are circumferentially and uniformly arranged at the seed-metering wheel, and external ends of the cylindrical seed-metering tooth passthrough a window and abuts against the corresponding seed holes. The superfluous crop seeds in a same aperture are put back to the seed-storage plate, and waste phenomenon generation due to excessivecrop seeds at a same position of cultivated land can be avoided; the crop seeds rotated to the seed-discharge port can be smoothly discharged, seeds shortage on the cultivated land can be prevented,accurate seed metering is realized, and crop output is guaranteed.

Description

Technical field [0001] The invention relates to a crop seed metering device, in particular to an internal filling type accurate quantitative seed metering device. Background technique [0002] With the continuous development of agricultural machinery technology, the sowing methods of crop seeds have been developed from traditional manual sowing methods to mechanical sowing and precision seeding. The existing seed metering device mainly includes a housing, a seed storage plate arranged in the housing, an arc-shaped seed guard plate arranged on the upper part of the outer edge of the front end of the seed storage plate, a seed metering plate arranged between the housing and the seed storage plate, and a device. A roller shaft that passes through the housing and the seed storage plate at the axis of the seed metering disc, a seed hole circumferentially arranged on the outer edge of the seed metering disc, and a seed metering port on the side wall of the housing near the end of the a...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides an internally filled precise quantitative seed metering device, which can return the redundant crop seeds in the same hole to the storage tray, so as to avoid the waste phenomenon caused by too many crop seeds in the same position of the cultivated land. ; And the crop seeds rotated to the seed discharge port can be smoothly discharged to prevent the lack of seeds in the cultivated land, realize precise seed discharge, and ensure crop yield

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