Small positive and negative pressure double-acting pneumatic-type vegetable precision seeder

A positive and negative pressure, double-action technology, applied in the field of agricultural machinery, can solve the problems of low seeding efficiency and low precision, and achieve the effect of conveniently emptying seeds, solving sticky discs, and realizing seeding depth
CN110521352APending Publication Date: 2019-12-03SHANDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV OF TECH
Publication Date
2019-12-03

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Abstract

The invention discloses a small positive and negative pressure double-acting pneumatic-type vegetable precision seeder. The seeder comprises a rack, a seeding unit, a plant spacing adjustment gearbox,front and rear press wheels, walking wheels at the two sides, a fan and a power system; the front and rear press wheels are arranged at the two ends of the rack in the forward and backward direction,the power system is arranged on the rack, the fan is connected with the power system and connected with the seeding unit through an air pipe, the seeding unit is movably connected to the rack, and the gearbox is rotatably connected with the front press wheel and arranged on the rack; positive and negative pressure is generated by supplying kinetic energy to the fan through the power system, an airway disc achieves the separation of the positive and negative pressure, vegetable seeds are prevented from being attached into a seed discharging disc of the seeding unit, the seeding unit is movablyconnected to the rack, row spacing adjustment is achieved, the problem of low seeding precision of vegetable seeds with irregular seed shapes and low mass is solved, the vegetable seeding precision and efficiency are improved, and the seeder is clear in principle and has use prospects.
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Description

technical field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a small positive and negative pressure double-acting pneumatic vegetable precision seeder. Background technique

[0002] my country is a large producer of facility agriculture, ranking first in the world in terms of area and output. However, compared with foreign countries, the level of mechanization and intelligence of facility agriculture in my country is relatively low. Vegetable seeds are irregular in shape, light in weight, and difficult to sow. Existing models generally use external grooved wheel seed metering devices, which have low operating efficiency and low sowing accuracy. Therefore, there is an urgent need to develop a high-efficiency, high-quality vegetable precision seeder to improve the mechanization level of the vegetable planting industry. Contents of the invention

[0003] The purpose of the present invention is to provide a small positive and...

Claims

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