Mechanical and pneumatic combined precise seed-metering device for vegetables

Abstract

The invention discloses a mechanical and pneumatic combined precise seed-metering device for vegetables. A drive shaft is arranged in an inner hole of a rolling bearing in a sleeving manner; the rolling bearing is positioned by a positioning sleeve; the rolling bearing is fixed on a shaft shoulder of the drive shaft by an elastic collar; an outer ring of the rolling bearing is in interference fitwith an inner hole of a gas chamber body; a power input end of the drive shaft is connected with a motor by a coupling; a seed discharge plate is mounted on the drive shaft; an air suction channel ofthe seed discharge plate is connected with a suction port of a fan by virtue of a suction connecting piece; and the suction connecting piece is connected with an air-blowing port of the fan by virtueof a vent pipe; a seed box is attached to the outer side of the gas chamber body, a seed-cleaning brush adjusting plate is attached to the outer side of the gas chamber body, and a seed-cleaning brushis screwed into the seed-cleaning brush adjusting plate by using a thread; a seed stirring wheel is positioned in the seed box and connected with a small motor through a seed stirring shaft, and a seed return trough is formed in one side of the seed box; a seed dropping cylinder is arranged below the seed discharge plate; and a plurality of suction nozzles are mounted on the circumference of theseed discharge plate. The mechanical and pneumatic combined precise seed-metering device disclosed by the invention has the beneficial effects that the sealing performance is excellent, and precisionseeding of different types of vegetable seeds can be realized.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and relates to a mechanical-pneumatic combined precision seed metering device for vegetables. Background technique [0002] The purpose of the present invention is to solve the problem of precision sowing of vegetables. At present, vegetable sowing is mainly done manually, and mechanical sowing also has the problem of inaccurate sowing volume. The current vegetable sowing machinery cannot meet the needs of vegetable production. The air-suction seed metering device in the vegetable seeder has many defects such as poor sealing, single type of seeding, different number of seeds, low seeding speed, complex structure, and the cleaned seeds cannot be recycled. There is an urgent need for vegetable precision seed meter. Contents of the invention [0003] The object of the present invention is to provide a mechanical-pneumatic combination precision seed metering device for vegetables, w...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mechanical-pneumatic combined precision vegetable seed metering device, which solves the problems of poor sealing and poor seeding adaptability of the air suction seed metering device in the existing seeder

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