Non-circular gear-helical gear pot seedling z-shaped wide and narrow row transplanting mechanism

Abstract

The invention discloses a non-circular gear-bevel gear pot seedling Z-shaped wide / narrow row transplanting mechanism. At present, the rice Z-shaped wide / narrow row mechanical transplantation is generally realized through staggered arrangement and inclined installation of two sets of equal-line-distance transplanting mechanisms. The transplantation of the two rows of seedlings can be realized by the single-side mechanism; the space transplanting tracks can be realized through the gear sets with the space transmission characteristics; the vertical degree of the seedlings is ensured; the composite wheel system is a two-freedom mechanism; a circular gear or a non-circular gear with the fixed transmission ratio is used in a transmission box; the combination of the non-circular gear and the staggered bevel gears is used in a gear box; a transplanting arm realizes the differential rotation through the two power input parts of the transmission box and the center non-circular gear; through the differential rotation, the free transmission ratio is obtained on the basis of variable-speed transmission characteristics and space transmission characteristics, so that the complicated direct clamping seedling type large annular buckle space 8-shaped tracks can be realized.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and relates to a high-speed rice pot seedling Z-shaped wide and narrow row transplanting machine, in particular to a non-circular gear-helical gear pot seedling Z-shaped wide and narrow row transplanting mechanism. Background technique [0002] At present, there are various types of rice transplanters, but whether it is transplanting in wide and narrow rows or transplanting in equal rows, the seedlings taken by the transplanting mechanism are all blanket-shaped seedlings, which are easy to damage the roots. The seedlings taken by the pot seedling wide and narrow row transplanting mechanism are pot seedlings, and there is no root packing phenomenon between the pots and pots, so there is no problem of root damage during the seedling picking process. Compared with blanket seedlings, transplanting has a shorter This is of great significance for increasing rice yield. [0003] Rice Z-shaped wide...

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Problems solved by technology

[0004] The patent application with publication number CN102640604A discloses a high-speed rice transplanter non-circular gear wide and narrow row transplanting mechanism. To a certain extent, the law of motion satisfies the seedling-taking, transplanting trajectory and posture of the transplanting mechanism's needle, but its function is limited to the "kidney-shaped" trajectory or "dolphin-shaped" trajectory of the rice transplanter, and cannot satisfy the Z-shaped shape of rice pot seedlings. Requirements for transplanting in wide and narrow rows

[0005] The invention patent with the publication number CN103493634A proposes two schemes for a space planetary gear system corn wide and narrow row oblique Z-shaped transplanting mechanism. The transplanting track is arranged at 90° through two gear boxes to realize staggered seedling picking and transplanting. This mechanism can improve the ventilation and light transmittance between plants; however, the transplanting track realized by the bevel gear mechanism has a relatively small Large offset, low seedling success rate

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