Concentrated discharging type precision rice direct-seeding device

Abstract

The invention discloses a concentrated discharging type precision rice direct-seeding device. The device is characterized by comprising a distributor, a seed box, a slanting fluted-wheel type seed discharging device, a fan, an air capacity control valve, a seed guiding device, a conveying pipe, a seed discharging pipe and a pressure measuring device, wherein the bottom of the distributor is connected with the conveying pipe and the seed discharging pipe, and the pressure measuring device is arranged on the distributor; the seed guiding device is connected with the conveying pipe, the slanting fluted-wheel type seed discharging device and the seed box are connected above the seed guiding device, an air inlet of the air capacity control valve is connected with the fan, an air outlet is connected with the conveying pipe, and the fan is driven under external power; the slanting fluted-wheel type seed discharging device right under the seed box supplies stable seed flow, the fan provides constant power air flow, the distributor uniformly distributes mixed flow of seeds and air to the seed discharging pipe, and the seeds are sown in seed ditches. Compared with the prior art, the device has the advantages that uniform and continuous precision sowing of rice can be realized, and back flowing of the seeds due to partial pressure of air can be prevented; the concentrated discharging type precision rice direct-seeding device can have the walking speeds higher than that of a conventional mechanical sowing machine and has higher sowing efficiency.

Description

technical field [0001] The invention relates to the field of rice planting machinery in agriculture, in particular to a collection and row type precision direct seeding device for rice. Background technique [0002] my country is the largest rice production and consumption country in the world, but the mechanization rate of rice production is low, especially in rice planting. At present, live broadcasting generally adopts artificial sowing. The artificially sown rice seeds are uneven in density, and the rice has poor ventilation, ventilation and lighting, and is prone to infection by diseases and insect pests. Because the sowing is broadcast on the field surface, the root system is shallow in the soil and easy to lodging. Mechanical precision direct seeding can overcome the above-mentioned problems of manual sowing, and it is the development trend of rice direct seeding production. [0003] Traditional rice direct seeding machines are mainly grooved wheel seed drills, whic...

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Problems solved by technology

[0003] Traditional rice direct seeding machines are mainly grooved wheel seed drills, whi

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