Seeding mechanism with adjustable sowing amount

Abstract

The present invention disclose a seeding mechanism with adjustable sowing amount, which is characterized in that, including hole-type tube arranged with multi-strip in circumferential direction, adjusting ring with multi-cord in the circumferential direction, seed protecting ring arranged on inner wall of close type hole, seeds storager and driving mechanism; the multi-strip of the hole-type tube corresponding to the multi-cord of the adjusting ring and matching in size, and a seeds filling cavity is formed between terminal of the cord and terminal of the groove; the adjusting ring is movable along axial direction for adjusting size of the seeds filling cavity; the driving mechanism is connected with the hole-type tube; the seeds storager is closely mounted to the external wall of the hole-type tube. The apparatus is a sowing device with adjustable sowing amount, capable of implementing accurate sowing of granule seeds such as cole etc, and also implementing accurate sowing of large granulated seeds.

Description

technical field [0001] The invention belongs to the field of agricultural seeding machinery, and relates to a seed metering device with an adjustable sowing rate, in particular to a seed metering device used on a direct-seeding machine for small-particle seeds such as rapeseed, sesame, and radish. Background technique [0002] For a long time, it has been very difficult to adjust the seed volume of the seed metering device, especially the adjustment of the seeding rate of the precision seed metering device for small-grained seeds has always been achieved by replacing the hole cylinders of different sizes, or by using Add a certain proportion of sand or dead seeds to adjust the sowing rate. The realization of the former requires stopping the machine to disassemble and replace the parts of the seed meter, which takes a long time and is difficult to replace; the latter will lead to inaccurate sowing rate and waste of seeds. Contents of the invention [0003] The technical pro...

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Problems solved by technology

[0002] For a long time, it has been very difficult to adjust the seed volume of the seed metering device, especially the adjustment of the seeding rate of the precision seed metering device for small-grained seeds has always been achieved by replacing the hole cylinders of different sizes, or by using Add a certain proportion of sand or dead seeds to adjust the sowing rate. The realization of the former requires stopping the machine to disassemble and replace the parts of the seed meter, which takes a long time and is difficult to replace; the latter will lead to inaccurate sowing rate and waste of seeds.

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