Collision theory based self-adaption flexible seed-clearing air-suction type planter plate

Abstract

The invention discloses a collision theory based self-adaption flexible seed-clearing air-suction type planter plate. The collision theory based self-adaption flexible seed-clearing air-suction type planter plate mainly comprises an involute fixation seed suction plate and a radially corrugated seed suction groove type seed suction plate. The curve of a negative pressure groove in the involute fixation seed suction plate adopts an involute curve whose polar coordinate is that R=[20(sin(t)-tcos(t))]mm, wherein t=(0-355 degrees]; the curve of a radial seed suction groove in the radially corrugated seed suction groove type seed suction plate is part of a cartesian leaf curve, the polar coordinate of the cartesian leaf curve is that R=[100tan(t)<2> / (1+tan(t)<3>)]mm, wherein t=(0-45 degrees], and an elliptic long axis with the long axis of 10mm and the short axis of 8 mm fits the distribution of the curve of a radial seed suction groove to form a corrugated seed suction groove. The radiallycorrugated seed suction groove type seed suction plate saves the additional installation of a seed clearing device, sucks and conveys the seeds and repeatedly collides to clear the seeds in the process of matched working with the involute fixation seed suction plate, the sowing speed is improved to maximally, the breaking of the seeds is reduced, and the planter plate is more simplified.

Description

technical field [0001] The invention is a key component of an air-suction seed metering device, which belongs to the field of agricultural machinery, and mainly relates to a self-adaptive flexible seed-clearing air-suction seed metering based on collision theory, which is a high-speed free seed cleaning device suitable for an air-suction seed metering device. plate. Background technique [0002] At present, the existing air-suction seed metering device uses a seed-discharging disc with a hole-shaped disc and a main negative pressure chamber to carry out seed suction operations. Rotate together to a specific position. In the process, a special seed clearing device is required to remove excess seeds. Therefore, the linear speed of the seeding disc is limited so that the operating speed cannot be too high, and the installation of a separate seed clearing device is not only structural It is complicated and will cause damage to the seeds, which will seriously affect the germinat...

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Problems solved by technology

[0002] At present, the existing air-suction seed metering device uses a seed-discharging disc with a hole-shaped disc and a main negative pressure chamber to carry out seed suction operations. Rotate together to a specific position. In the process, a special seed clearing device is required to remove excess seeds. Therefore, the linear speed of the seeding disc is limited so that the operating speed cannot be too high, and the installation of a separate seed clearing device is not only structural Complicated and will cause damage to seeds, seriously affecting seed emergence

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