Non-circular gear asteroid three-jaw paddy rice pot seedling transplanting mechanism

Abstract

The invention discloses a non-circular gear asteroid three-jaw paddy rice pot seedling transplanting mechanism. In the conventional transplanting mechanism with two transplanting arms, the maximal difference between the seedling-pushing angle and the seedling-fetching angle can only reach 46 degrees, so the seedling will probably be pulled back by the retrieved transplanting arms. In the provided mechanism, an incompletely non-circular gear is fixed in a gear box through a jaw type flange; a projected locking arc plate and a sun gear buffering arc plate are connected to the incompletely non-circular gear through pins; one ends of a first asteroid shaft, a second asteroid shaft, and a third asteroid shaft are individually connected to the shell of a transplanting arm through pins; a first recessed locking arc plate and a first middle gear buffering arc plate are connected to a first middle non-circular gear through pins; a second recessed locking arc plate and a second middle gear buffering arc plate are connected to a second middle non-circular gear through pins; and a third recessed locking arc plate and a third middle gear buffering arc plate are connected to a third middle non-circular gear through pins. The difference between the seedling-pushing angle and the seedling-fetching angle can reach 52 degrees in the provided mechanism, and the transplanting efficiency and the seedling fetching success rate are high.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and relates to a transplanting mechanism, in particular to a non-circular gear planetary system three-claw rice pot seedling transplanting mechanism. Background technique [0002] Rice transplanting is an important link in the planting process. At present, rice transplanting machines mainly include rice transplanter, rice thrower and pot seedling check-in machine. The rice transplanter adopts blanket-like seedlings, which have a long seedling slowing period and damage the roots; the rice seedling throwing machine is easy to cause the seedlings to fall, and the uprightness is not good; while the potted seedlings are planted with good uprightness and no slowing down period. [0003] With the development of agricultural mechanization, high-speed transplanting is an inevitable trend. Most of the transplanting mechanisms for rice pot seedlings developed in China are rod structures with low worki...

AI Technical Summary

Problems solved by technology

Most of the transplanting mechanisms for rice pot seedlings developed in China are rod structures with low working efficiency, and the rod structure cannot further improve work efficiency due to its own defects; although the automatic rice transplanting machines on the market can automatically grab seedlings, The transplanting work is divided into three actions by different mechanisms. The structure is complex. When the operating speed is too high, the rate of seedling damage and missing seedlings will increase, and it is difficult to guarantee the quality of the work. Domestic transplanting agencies basically use two transplanting arms. The structure, the angle difference between the seedling pushing angle and the seedling picking angle can generally only reach 46°, and the uprightness of the absolute moving track is not good, and the return trip of the transplanting arm is easy to bring the seedlings back, which restricts the rapid development of rice transplanting in my country

The rice pot seedling transplanting mechanism imported from abroad is expensive, has a complex structure, and has high requirements for seedling cultivation, which is not suitable for the current situation of rice planting in my country.

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