Wide- and narrow-row rice transplanting mechanism

Abstract

The invention relates to a wide- and narrow-row rice transplanting mechanism and belongs to agricultural machinery. Two driving shafts of a universal transmission device are respectively connected with the left end and the right end of a chain wheel shaft of a chain box assembly; the left side wall and the right side wall of a box body of a chain box assembly are respectively and sequentially provided with a bearing and a sealed ring; two driven shafts of the universal transmission device are respectively inserted into the bearing and the sealed ring which are arranged on the left side wall and the right side wall of the box body; the two driven shafts of the universal transmission device are in inclined arrangement on a plane perpendicular to an axial line and have low external ends and high internal ends; the internal ends of the driven shafts of the universal transmission device are hinged with the driving shafts of the universal transmission device by adopting a cross shaft; transplanting arm assemblies of a left side and a right side are arranged at a left outer end and a right outer end of the chain box assembly; the external ends of the driven shafts of the universal transmission device are respectively and fixedly connected with actuating arms of the transplanting arm assemblies of the left side and the right side; and the transplanting arm assemblies of the left side and the right side are in a V-shaped inclined arrangement in a vertical direction integrally. The mechanism has the advantages of simple structure, light weight, low manufacturing cost, reliable operation and low fault rate.

Description

technical field [0001] The invention belongs to agricultural machinery, and mainly relates to a rice transplanting mechanism on a rice transplanting machine tool. Background technique [0002] Wide and narrow row transplanting refers to the planting method of rice transplanting with one wide and one narrow row spacing. This planting method uses the principle of crop marginal advantage to increase production. By adjusting the row spacing of transplanting rice seedlings, the ventilation and light transmittance between plants are improved, and diseases Increase the leaf area index, prolong the life of the leaves, and accelerate the accumulation of dry matter, so as to achieve the purpose of high quality and high yield, saving cost and increasing efficiency. The separate transplanting mechanism is a component on the rice transplanter that realizes taking seedlings, implanting them in the field, and planting the seedlings in rows. In the existing public transplanting mechanism o...

AI Technical Summary

Problems solved by technology

In the existing public transplanting mechanism of the rice transplanter, the transmission box adopts chain transmission, and the left and right two transplanting mechanisms on the rice transplanter adopt a structural configuration parallel to the forward direction and perpendicular to the ground. The planting arm on the top can only move in a plane parallel to the forward direction and perpendicular to the ground. Under the premise of equidistant distribution of seedling openings, the transplanting position cannot form the wide and narrow row seedling distribution required by agronomy, which affects the new agronomic method of wide and narrow row transplanting. Promoted application of

In order to solve the above problems, a single-shaft or double-shaft full-gear transmission structure wide and narrow row insertion mechanism scheme has been proposed. This structure is not only complicated in structure, high in manufacturing cost, heavy in weight, inconvenient to install and use, but also only suitable for fitting in It is used on the high-speed rice transplanter with double seedling needles, the scope of application is small, and the existing chain-driven rice transplanter with a huge inventory cannot be modified and equipped, resulting in waste

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