Electric self-propelled numerical-control plot drill seeder

Abstract

The invention relates to an electric self-propelled numerical-control plot drill seeder aiming to solve the technical problems that plot seeders in the prior art are nonuniform in seeding and not precise enough in row length control. The electric self-propelled numerical-control plot drill seeder comprises a walking mechanism, an automatic control device, a seed separation mechanism, a furrowing and seeding mechanism and a lifting mechanism, and the seed separation mechanism, the furrowing and seeding mechanism and the lifting mechanism are correspondingly arranged on the walking mechanism; the seed separation mechanism comprises a seed separation unit and a seed storage unit, the seed separation unit is arranged above the furrowing and seeding mechanism, and the seed storage unit is arranged above the seed separation unit; the walking mechanism is an electric walking mechanism; the seed separation unit comprises a seed separation disc, a seed separation servo motor or a seed separation stepping motor, and the seed separation servo motor or the seed separation stepping motor is arranged below the seed separation disc, and drives the seed separation disc to rotate; the electric self-propelled numerical-control plot drill seeder has the advantages of uniform between-row and in-row seeding, high degree of automation, stepless row length setting (arbitrary row length setting), high row length control accuracy, simple operation, high sowing efficiency and the like.

Description

technical field [0001] The invention relates to a seeder, in particular to an electric self-propelled numerically controlled plot drill for agricultural scientific research units to conduct field plot tests such as new variety breeding, improved variety breeding, variety comparison, and cultivation. Background technique [0002] Seed engineering has always been the focus of the world's economic work. As a country with a large population, it is particularly important for our country to cultivate excellent varieties, increase food production, and ensure food security. As early as 2010, the central government's "No. 1 Document" had already emphasized that "the focus of agricultural science and technology should be placed on the cultivation of improved varieties". For the cultivation of new varieties of crops, experimental sowing is the most important thing. Therefore, an electric self-propelled numerical control plot drill with high degree of automation, accurate sowing, stabil...

AI Technical Summary

Problems solved by technology

Domestic seed drills have a great price advantage, but due to the transmission mode of mechanical sprockets, gears, chains, belts, and bottom wheels, there are large errors in the transmission of power, resulting in the speed of the seeding disc and the speed of the seed drill. Inconsistencies in driving speed eventually lead to uneven sowing amount in a single plot and a single row length, which cannot meet the preset requirements, resulting in a large error in the accuracy of the test, which has no substantial improvement compared with manual sowing At the same time, it is cumbersome and complicated to use, and the efficiency is extremely low. The sprocket drive is easy to break, and even the efficiency and accuracy are not as good as manual

Although the accuracy of imported drills has been greatly improved compared with domestic drills, they are expensive. After long-term use and research, imported drills also use mechanical sprockets, gears, and chains. Larger errors are generated and directly affect the reliability of test data

However, the existing seed drill adopts a single-row seeding disc seeding machine. When sowing large and round seeds (such as soybeans), the seeds are placed in the seeding disc due to the mechanical control of the movement of the drill and the rotation of the seeding disc. Due to the action of centrifugal force, it will be concentrated on the outer edge of the seeding tray, causing the seeds to accumulate on the edge of the seeding port, making the seeding speed and seeding amount uneven

In addition, due to the vibration and bumps when the seed drill is walking, the seeds in the seed cell will be displaced and jumped, and some seeds will be scattered into the empty seed cell that has passed the seed opening, so that after the specified row length is completed, the seeds will be divided There are still seeds to be sown in the seed tray, causing the line leader to be out of control, which in turn reduces the number of basic seedlings in the plot experiment, directly affecting the accuracy and reliability of the experimental results

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