RU2580357C1 - Planting unit for precision seed drill - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: drive drum has through holes in which seed channels are made in the form of pipes. The inner diameter of the pipes is 2-3 times larger than the maximum size of the seeds. At the ends of the seed channels the removable intake devices are formed, made in the form of buckets having the shape of a quarter of a hollow torus. The drive drum comprises spiral guides communicating on one end with the seed channels, and on the other - with a device of discharging the seeds.

EFFECT: invention with a relatively simple design enables to ensure accurate single-piece dosing of seeds of different crops, having a rounded shape.

4 dwg

Description

The invention is intended for use in the agricultural sector for planting crops.

Known metering apparatus precision seeder [http://www.suttonag.com/SeedAce.html]. The apparatus consists of a seed hopper, a drive drum with seed channels, a seed output device consisting of two vertical partitions on which brushes are located. For single-piece selection of seeds from the hopper, this sowing apparatus uses a pneumatic system consisting of a compressor, an accumulator and pipelines.

The disadvantages of this sowing device for precision seeders include the complexity of the design, the need to use pumping equipment and batteries, as well as the low accuracy of seed metering due to the possibility of several seeds sticking to the seed channels at the same time. It is also possible the penetration of seeds during operation into the device for removing seeds from the working area between the vertical partitions through the brushes.

Closest to the proposed invention is the sowing apparatus of a precision seeder, consisting of a seed hopper, a drive drum with seed channels, a seed output device. In the drive drum, through holes are made at an angle of 60-75 ° to its axis, in which the seed channels are placed in the form of nozzles, the inner diameter of which is 2-3 times larger than the maximum seed size, removable intake devices made in the form of scoops, having the form of a quarter of a hollow torus.

The disadvantages of this sowing apparatus precision seeder should include the complexity of the design.

The objective of the invention is to provide a sowing apparatus for precision seeders, having a simple design and allowing to plant seeds with high accuracy.

This object is achieved in that the sowing apparatus of the precision seeder, consisting of a seed hopper, a drive drum with seed channels, a seed output device, through holes are made in the drive drum, in which the seed channels are placed in the form of nozzles, the inner diameter of which is 2-3 times the maximum seed size, removable intake devices made in the form of scoops having the shape of a quarter of a hollow torus are made at the ends of the seed canals, characterized in that they are placed in the drive drum spiral guides communicating at one end with the seminal canals, and at the other with a seed output device.

In FIG. 1 shows the sowing apparatus of a precision seeder.

In FIG. 2 shows view A.

In FIG. 3 shows a removable device for collecting seeds (enlarged).

In FIG. 4 shows a process for capturing a seed from a seed hopper with a seed picker.

The sowing apparatus of the precision seeder consists of a seed hopper 1, a drive drum 2, in which through holes 3 are made. A seed channel 4 is installed in each through hole 3. Removable pick-up devices are placed at the outer ends of the seed channels 5. The seeds taken from the seed hopper 1 individually come along spiral guides 6 to the seed output device 7.

The rotation of the drive drum 2 is carried out through the pulley 8 of the V-belt transmission.

The sowing apparatus of the precision seeder works as follows.

When the drive drum rotates from the seed hopper, each suction device located at the outer ends of the seed canals captures one seed. The captured seeds during rotation of the drive drum rise from the seed hopper 1 and when the seed channel is rotated by an angle of 45-70 ° with respect to the horizontal plane under the influence of gravity, they fall into its internal cavity - spiral guides. Next, the seeds move along them to the seed output device 6 (seed tube).

Due to the fact that the internal diameter of the seed canals, made in the form of nozzles, exceeds 2-3 times the maximum size of the seeds, the possibility of their getting stuck in the seed canals is excluded.

The presence of removable devices for collecting seeds makes it possible to use the metering device for various types and sizes of seeds by installing different-sized sampling devices.

The use of spiral guides to move seeds from the seed channels to the seed output device allows you to simplify the design and reduce the size of the apparatus. In addition, in the case of the capture of several seeds at once during their movement along spiral guides, they are separated, which ensures piece seeding.

To ensure piece-by-piece sampling of seeds from the seed hopper by each intake device, it is advisable to perform them in the form of a quarter of a hollow torus. This form eliminates the ingress of the second seed and does not impede the movement of seeds into the seminal canals during unloading.

The proposed metering device for precision seeder with a relatively simple design allows for accurate (piece) metering of seeds of various crops that have a rounded shape.

Claims (1)

Precision seeder sowing apparatus, consisting of a seed hopper, a drive drum with seed channels, a seed output device, and through holes made in the drive drum, in which the seed channels are placed in the form of nozzles, the inner diameter of which is 2-3 times larger than the maximum seed size and at the ends of the seed canals there are removable intake devices made in the form of scoops having the shape of a quarter of a hollow torus, characterized in that spiral guides are placed in the drive drum connecting at one end with the seed canals, and at the other end with a seed output device.

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