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

A collision theory and self-adaptive technology, applied in the field of agricultural machinery, can solve problems such as the high speed of the seeding tray, the damage of seeds, and the impact of seed emergence.

Active Publication Date: 2018-10-16
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 requ...

Method used

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

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Embodiment Construction

[0010] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] An adaptive flexible seed-clearing air-suction seed metering disc based on the collision theory is mainly composed of an involute fixed seed sucker 1 and a radial corrugated seed-suction trough-type seed sucker 2; the involute fixed seed sucker 1 is The negative pressure groove 3 curve adopts polar coordinates as R=[20(sin(t)-tcos(t))]mm involute curve, wherein t=(0-355 °], the involute curve that negative pressure groove 3 has The open linear slot minimizes the motion resistance of the seeds when they rotate with the radial corrugated seed-suction slot-type suction disk 2, and has a stronger adsorption force to the seeds than the existing circular-curved seed-suction slot, and will not Seeds cannot be sucked. The involute fixed seed sucker 1 is fixed and sealed with the main body of the seed meter through the sealing fixing hole 4, and the seal...

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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...

Claims

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Application Information

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IPC IPC(8): A01C7/04
CPCA01C7/044
Inventor 侯守印陈海涛史乃煜张继成纪文义王业成
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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