Peripheral motor direct-drive device and control method of pneumatic type precise corn seed-metering device

Abstract

The invention belongs to the field of automatic agricultural equipment and in particular relates to a peripheral motor direct-drive device, a pneumatic type precise corn seed-metering device with the same, and a control method of the pneumatic type precise corn seed-metering device. The peripheral motor direct-drive device is suitable for a conventional pneumatic type precise corn seed-metering device, can perform seeding filling in advance and variable sowing and is convenient to adjust, is suitable for high-speed operation, and can be used for controlling the seed-metering device and the sowing amount thereof independently. The pneumatic type precise corn seed-metering device comprises the peripheral motor direct-drive device. Miss-seeding caused by slip of land wheels can be fundamentally avoided, and the sowing quality is improved; a seed-metering transmission system is simplified, and the production cost of a corn planter is reduced; the intelligent degree and automation degree of the corn planter are improved, the working efficiency is improved, and the labor intensity is reduced.

Description

technical field [0001] The invention belongs to the field of automatic agricultural equipment, and in particular relates to a circumferential motor direct drive device for a pneumatic corn precision metering device, and a pneumatic corn precision metering device including the circumferential motor direct drive device for the pneumatic corn precision seed metering device. Seed metering device and its control method. Background technique [0002] The existing seed metering devices of corn seeders are divided into three types: mechanical type, pneumatic type and mechanical-pneumatic combination type. The seeder can achieve a pass rate of 97% under laboratory conditions. [0003] For example, the patent application number is 201110276013.8, and the name is "inner filling corn seed metering device", wherein, the seed metering device is provided with a seed unloading groove at the seed opening of the housing, and an interference groove is provided in the corresponding seed cleari...

AI Technical Summary

Problems solved by technology

However, when sowing in the field, the seed meter is driven by the ground wheel and the transmission system. This transmission method is prone to unstable plant spacing and missing seeding caused by ground wheel slippage and chain jumping.

[0004] Due to the limitation of the transmission mode, the seed meter cannot be filled before the field operation, resulting in missed sowing in the field

When adjusting the planting density of corn, only the variable speed sprocket can be replaced, which is troublesome to operate and low in operating efficiency

[0005] In addition, since all the seeding discs on the seeder are directly and uniformly driven by the ground wheel, it is impossible to realize the independent seeding of each seeding unit. When sowing on irregular plots, it is easy to reseed, resulting in waste of seeds. Later thinning work

When the planter starts and stops, the impact force on the seeding tray is relatively large, and the vibration generated by the impact will cause the quality of the seed to decline

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