Wheat plot breeding precise seed-metering device

Abstract

The invention discloses a wheat plot breeding precise seed-metering device, which mainly includes: a seed-metering device shell, a seed-metering wheel and a rubber seed scraping sheet. The width of the seed-metering wheel is 1.5 times as the maximum long axis of a wheat seed, while the width of a cylindrical hole is 1.2 times as the maximum long axis of a wheat seed, so that the device guaranteesthat only one seed can enter the cylindrical hole in one time at most; when the seed-metering wheel rotates, the long axis of the wheat seed moves along the cylindrical surface of the seed-metering wheel, so that the seeds can lie on the side and lie flatly due to the inclined cylindrical hole during seed filling, thereby greatly increasing seed filling efficiency. The wheat seed-metering device is provided with the shell body which has the slope structure, so that the seeds can fill a seed filling zone. The device has simple structure and is easy to install and low in manufacturing cost, wherein the seed-metering wheel rotates under driving by an external power shaft, and the rotational speed of the seed-metering wheel is adjustable by controlling the output speed of the external power output shaft, thus effectively controlling seed distance and easily achieving plot single-grain precise seeding of the wheat. The device can effectively increase seeding efficiency and seeding quality.

Description

technical field [0001] The invention relates to a field test machine for wheat breeding in small plots, in particular to a wheat single-grain precision seed metering device, which belongs to the field of agricultural machinery. Background technique [0002] The varieties used by farmers are the scientific research results of more than ten years of hard work by breeders. In the past ten years, various field comparison experiments and variety comparison yield identifications have to be set up in the field. It is often necessary to carry out different types of test plots Modularized field management, observation and recording, the whole labor process is far more difficult than that of farmers. Having a community seeder reduces the labor intensity and improves work efficiency for scientists. The quality of community sowing directly affects their scientific research results. output. In the absence of a precision seeder for the plot, only artificial ditching and area division can...

AI Technical Summary

Problems solved by technology

The amount of labor is large, it is easy to cause artificial misseeding, and the quality of sowing is poor, which directly affects the accuracy of the test

[0003] There are wheat precision seeders abroad, the principle of which is a pneumatic seed metering device. However, the pneumatic seed metering device not only requires high air tightness, but also has a large size, which is not suitable for wheat breeding requirements in our country's community.

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