High-speed pot seedling transplanting mechanism with free second-order non-circular gear and planet system

Abstract

The invention discloses a high-speed pot seedling transplanting mechanism with a free second-order non-circular gear and planet system. The working principle of the mechanism is as follows: power is transmitted to a planet carrier via a central shaft; free second-order central non-circular gears are fixedly connected with a rack; two free second-order intermediate non-circular gears are connected with hinges of the planet carrier by two intermediate shafts; two free second-order planet non-circular gears are connected with the hinges of the planet carrier by two planet shafts; the two free second-order intermediate non-circular gears are connected with pairs of the two free second-order central non-circular gears; the two free second-order planet non-circular gears are connected with pairs of the two free second-order intermediate non-circular gears; the two free second-order planet non-circular gears are connected with splines of the two planet shafts; and two seedling picking claws are fixedly connected with the two planet shafts. The mechanism has the following beneficial effects: an h-shaped locus needed for pot seedling transplanting is formed through drive of the free second-order non-circular gears; and the mechanism has compact structure, is stable in drive, carries out transplanting twice while the planet carrier rotates a circle, has high efficiency, meets the requirements of pot seedling picking and transplanting and is suitable for transplanting operations in paddy fields and dry fields.

Description

technical field [0001] The invention relates to a transplanting machine in agricultural machinery, in particular to a high-speed pot seedling transplanting mechanism of a free second-stage non-circular gear planetary system. Background technique [0002] Transplanting has the comprehensive benefits of climate compensation and early crop growth, and can make full use of light and heat resources, and its economic and social benefits are very considerable. Potted seedling transplanting operations in paddy fields and dry land require the development of high-speed potted seedling transplanting mechanisms. [0003] The rotary transmission mechanism of the planetary gear system has been applied in the rice transplanter. The rice transplanter is a kind of planting machine for blanket seedlings. The needle does not need to enter the pot. The seedlings are taken out by tearing the soil block. The pot seedling transplanting machine needs the needles to enter the pot seedling tray to h...

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Problems solved by technology

[0003] The rotary transmission mechanism of the planetary gear system has been applied in the rice transplanter. The rice transplanter is a kind of planting machine for blanket seedlings. The needle does not need to enter the pot. The seedlings are taken out by tearing the soil block. The pot seedling transplanting machine needs the needles to enter the pot seedling tray to hold the seedlings, and can not damage the pot tray or damage the roots, so the trajectory needs a sharp protrusion; from the seedling needles entering the pot body to completely leaving the pot body, The movement direction of the seedling needles is kept parallel to the direction of the pot body, that is, the seedling needles need a movement track close to a straight line. The planetary system non-uniform speed transmission mechanisms such as elliptical gears and eccentric non-circular gears used in the existing planting machinery are all The above requirements cannot be met, and the special trajectory required by the pot seedling transplanting machine hinders the application of the rotary planetary gear system mechanism on the transplanting machine, that is, the rotary seedling separation mechanism cannot be used to overcome the shortcomings of the existing seedling separation mechanism

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