A seed metering device for an air-suction precision seeder

Abstract

The invention discloses a novel air suction type seed sowing machine of a precision seeder. The novel air suction type seed sowing machine is arranged on a travelling mechanism and characterized by comprising a driving shaft, an eccentric wheel mechanism, a mechanical valve, a mechanical valve pressing block, a rocker rod, a cam connecting bar mechanism, a seed box, a sliding chute, a suction nozzle, a seed metering pipe, a shaft, a spring, a mini vacuum pump and a box body. The novel air suction type seed sowing machine of the precision seeder is designed and manufactured, breaks through the condition that a plurality of seeds are sucked every time during the suction of a previous small-particle seed sowing machine and is characterized in that one seed or a specified quantity of seeds are sucked every time. The seed sowing machine can be used for guaranteeing that only one seed or the specified quantity of seeds are sucked every time, so that the seeds are saved and the seeding efficiency is improved.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and relates to a seed metering device for a seeder, in particular to a seed metering device for an air-suction precision seeder. Background technique [0002] The planting of small seed crops such as rapeseed, millet, sesame, and radish used to be spread by manpower, which was neither uniform nor formed into ridges, and it was difficult to achieve standardized operations. Although the air-suction seeder used in the existing seeder can achieve precise sowing of small seeds to a certain extent, the general air-suction seeder needs to install a fan on the seeder, the structure is relatively complicated, and the power consumed by the fan Larger, and the effect of precision seeding is not ideal, so improving the structure of the seeder and improving the quality of seeding is one of the problems to be solved to increase the yield of small-grain crops such as rapeseed, millet, sesame, and radish, a...

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Problems solved by technology

[0002] The planting of small seed crops such as rapeseed, millet, sesame, and radish used to be spread by manpower, which was neither uniform nor formed into ridges, and it was difficult to achieve standardized operations

Although the air-suction seeder used in the existing seeder can achieve precise sowing of small seeds to a certain extent, the general air-suction seeder needs to install a fan on the seeder, the structure is relatively complicated, and the power consumed by the fan Larger, and the effect of precision seeding is not ideal, so improving the structure of the seeder and improving the quality of seeding is one of the problems to be solved to increase the yield of small-grain crops such as rape, millet, sesame, and radish, and to promote large-scale planting

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