Universal joint-driven inclined wide-and-narrow separating-planting mechanism of rice transplanter

Abstract

The invention discloses a universal joint-driven inclined wide-and-narrow separating-planting mechanism of a rice transplanter. Transmission cases of the same structure and planting arms of the same structure are arranged on the two sides of a chain wheel shaft respectively; the chain wheel shaft forms an inclination angle with an output shaft of a universal joint through the universal joint; the output shaft end of the universal joint is fixedly connected with a planet carrier; in the planet carrier, central gears are supported on the output shaft of the universal joint through bearings, are fixedly connected through flanges, adjustment gaskets and the flange on a transmission case body at the universal joint end and are connected with planet gears per se through idler wheels respectively; and planet gear shafts fixedly connected with the planet gears are connected with the planting arms per se respectively. In the universal joint-driven inclined wide-and-narrow separating-planting mechanism, seedling needles on the planting arms driven by the planet gears move in a plane inclined relative to the chain wheel shaft, the inclination of the planet carrier produces lateral movement relative to an advancing direction to move seedling inserting points leftwards or rightwards relative to seedling taking positions after the seedling needles take seedlings, and then rice transplantation positions are distributed in narrow and wide rows at unequal row spaces meeting agronomic requirements on the premise that seedling taking openings are distributed at equal intervals.

Description

technical field [0001] The invention relates to a splitting mechanism of a rice transplanter, in particular to a splitting mechanism of a universal joint-driven inclined wide and narrow row rice transplanter. Background technique [0002] Wide and narrow row transplanting refers to the implementation of one wide and one narrow planting method for the row spacing of rice transplanting. This planting method utilizes 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 can be improved, and diseases can be reduced. 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. [0003] The separate transplanting mechanism is a component on the rice transplanter that realizes taking seedlings, implanting them ...

AI Technical Summary

Problems solved by technology

In the existing published transplanting mechanism documents of rice transplanters, the central axis of the sun gear on the existing splitting mechanism is coaxial with the sprocket shaft, the planet carrier is perpendicular to the sprocket shaft, and the seedling needles on the planting arm are vertical to the sprocket shaft and the ground. In-plane movement, under the premise that the seedling openings are equidistantly distributed, the transplanting position cannot form the wide and narrow row seedling distribution required by agronomy

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