Pneumatic hole seed sowing device

Abstract

The invention discloses a pneumatic hole seed sowing device, which comprises a seed discharging assembly, a seed sowing shaft, a seed sowing housing, a seed clearing assembly, an air sucking housing, a seed sucking tray and a seed guiding pipe; the seed sowing housing, the seed sucking tray and the air sucking housing are arranged in the axial direction of the seed sowing shaft; the seed sowing shaft drives the seed sucking tray to rotate; connecting devices are distributed along the circumference on the seed sowing housing and the air sucking housing, so that the seed sowing housing and the air sucking housing are connected to form a shell in which a cavity is formed; the seed discharging assembly, a seed discharging port and the seed guiding pipe are arranged below the internal space ofthe seed sowing housing; the seed clearing assembly is arranged on the side wall of the upper left part of the seed sowing housing; the middle part of the cavity of the seed sowing housing is provided with a rectangular seed inlet, and the exterior of the seed sowing housing is provided with a seed inlet passage; an air sucking nozzle and an air blowing nozzle are respectively arranged at the upper part and the lower part of the exterior of the air sucking housing to form negative pressure airflow and positive pressure airflow respectively; and seeds are adsorbed on the seed sucking tray, andthe seeds on the seed sucking tray are blow into the seed discharging port and enter the seed guiding pipe. The pneumatic hole seed sowing device can be used for accurately controlling and adjusting the sowing grain number of each hole, and has seed clearing and anti-blocking functions.

Description

technical field [0001] The patent of the invention belongs to the field of agricultural machinery sowing, and specifically relates to a pneumatic hole sowing seed metering device. Background technique [0002] It is an important long-term strategic decision of our country to develop high-quality, high-yield, efficient and sustainable food crop production and accelerate the pace of its industrialization to ensure food security supply. The important food crops in my country include rice, wheat, cotton, corn, etc. All these food crops are suitable for hole sowing. The production of hole sowing food crops requires planting in rows and holes. Different planting areas and different varieties have great differences in row spacing and hole spacing. . The number of seeds per hole has a great influence on the number of effective seedlings in the field, which in turn affects the yield of food crops. The requirements for the number of grains per hole of different food crop varieties ar...

AI Technical Summary

Problems solved by technology

For example, the application number is 200610016810.1 invention patent, which proposes a double-disc air-suction precision seed metering device, which relies on two perforated seed suction discs parallel to each other to absorb one seed, so that two seeds can be sown at a time, and the sowing frequency is increased. The amount of seed collection is fixed and cannot be adjusted, and it is difficult to adjust the number of suction holes, the number and shape of the type holes, which can only be realized by disassembling the seed meter and replacing the suction cup, and it is difficult to clean up after the holes are blocked

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