Sowing machine for test

Abstract

The invention discloses a sowing machine for a test. The sowing machine comprises a seed metering device assembly, a transmission speed change assembly, a rack and an opener. The seed metering device assembly is arranged at the front position of the upper portion of the rack, the transmission change speed assembly is arranged at the rear position of the lower portion of the rack, and the opener is arranged at the front portion of the lower portion of the rack. A sowing length cutting device and an evacuating and seed removing power transmission device are further included. Based on the basic structure of the sowing machine, the sowing machine has the advantages that one sowing length cutting device is arranged on a single body of each opener, and the defects of first-line missing sowing and tail-line repeated sowing of a common sowing machine can be overcome through the sowing length cutting device; the sowing machine for the test can evacuate left seeds within the time of backup for restarting a line, no time is occupied in the seed clearing process, and sowing efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a seeder, in particular to a small seeder suitable for scientific research and testing in wheat plots. Background technique [0002] Wheat is one of the two major grain crops in my country, with an annual planting area of ​​more than 20 million hectares. The country attaches great importance to the scientific research and experimentation of wheat, invests a large amount of scientific research funds every year, and sets up a large number of scientific research projects. The sowing of wheat plots is an important part of wheat scientific research and experiment. The research on the seeder in our country is relatively lagging behind. Since the early 1970s, the cone type and the pneumatic type seeder have been introduced successively. Although the seeding accuracy and efficiency are high, they are not suitable for my country's national conditions and breedi...

AI Technical Summary

Problems solved by technology

Although the cone-shaped grid seeder has the function of self-cleaning, all the seeds are sowed just after the grid is rotated once after the specified row length, but due to the uneven quality of the soil preparation and the inconsistent slip coefficient of the ground wheel, there is often a phenomenon that it cannot be emptied. Also can not realize single-grain on-demand, can only be used for plot sowing, and can not be used for the sowing of row of plants and ear row

Pneumatic seeders cannot be used for sowing rows of plants and ears due to their heavy baggage and large turning radius.

The seed cleaning method of pumping out the seed box is much more convenient than the external force rotating ground wheel cleaning method, and the seed cleaning speed is faster, but if it is used for sowing in rows of plants and ears, one row is cleared, and two rows are cleared once. More time, low seeding efficiency

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