RU50073U1 - PRECISION SEED SEEDER - Google Patents

Abstract

The utility model relates to agricultural machinery, namely to seeders for the exact sowing of seeds. EFFECT: exclusion of replacement of sowing disks, elimination of damage to seeds, due to self-shedding, and not forced cleaning. A seeder for the precise sowing of seeds, including a beam with sections placed on it, including support wheels, sowing apparatus, seed guide, opener with press wheel, the opener being located behind the sowing device, which includes a hopper, a metering disk rotating in a vertical plane, an end face part of which is crowned, with cells evenly spaced around the circumference, made in the form of open half rings, to which are adjacent a vertically mounted wall of the seed hopper with an unloading window in bo ttom of having the opportunity to move in a horizontal plane with fixed thereto rim fitting metering disk from below, and the rim can be rotated relative to the metering disk drive system carried by a driven sprocket mounted on the shaft of the sowing machine.

Description

The technical field to which the utility model relates.

The utility model relates to agricultural machinery, namely to seeders for the exact sowing of seeds.

State of the art

A known model of a seeder with a mechanical cell-disk sowing device with a horizontal axis of rotation, consisting of a housing, a sowing disk with deaf cells, an ejector, a reflector. (Chichkin, V.P. Vegetable seeders and combined units: Theory, design, calculation. - Chisinau: STIINCA, 1994. p. 48 ... 49).

This model of a seeder cannot work qualitatively at sowing of row crops. The presence of a stripping roller and an ejector in the metering unit causes damage to the seeds. With uncalibrated seeds, their damage increases significantly.

A known model of the precision seed drill SST-12B, consisting of a sowing apparatus, support-drive wheels of a section, a follower, a hopper for seeds and a coulter located under the sowing apparatus. (Prototype. Klenin N.I., Sakun V.A. Agricultural and land reclamation machines - M .: - 1994. - p.235).

This seeder model has several disadvantages. Sowing different sizes of seed fractions requires the presence of various sowing discs, which leads to inconvenience in work, an increase in working time, and also complicates the design.

Utility Model Disclosure

The technical result, which can be achieved using the proposed utility model, is to reduce damage to the seeds, eliminating the replacement of seed discs and simplifying the design of the seed meter.

The technical result is achieved in that the precision seeder, including a frame with support wheels, sowing sections with seed bins, sowing machines, openers, seeding devices, while the sowing device is made in the form of a metering disk rotating in the vertical plane, the end part of which is crowned, with cells arranged uniformly around the circumference, made in the form of open half rings, to which a vertically mounted seed hopper wall adjoins with an unloading window in the lower part, yuschaya able to move in a horizontal plane with the rim fixed thereto, form-fitting bottom disc, the rim can be rotated relative to the metering disk.

Brief Description of the Drawings

Figure 1 - plan seeder, side view;

figure 2 - sowing apparatus, rear view;

figure 3 - sowing apparatus, side view;

figure 4 - diagram of the adjustment of the gap between the vertical wall of the hopper and the metering disk.

Utility Model Implementation

A seeder for precise sowing of seeds, including a beam 1 with sections placed on it, including support drive wheels 2, a sowing apparatus 3, a seed guide 4, a coulter 5 with a rolling wheel 6, while the coulter 5 is located behind the sowing apparatus 3, which includes a hopper 7 rotating in a vertical plane metering disk 8,

the end part of which is crowned, with cells 9 arranged evenly around the circle, made in the form of open half rings, to which a vertically mounted wall 10 of the hopper 7 for seeds 15 adjoins with an unloading window 11 in the lower part, which has the ability to move in a horizontal plane, with it fixed to it a rim 12 that fits the metering disk 8 from the bottom, while the rim 12 can be rotated relative to the metering disk 8, a drive system implemented through a driven sprocket 13 mounted on the shaft 14 of the metering device 3 .

The technological process performed by the seeder is as follows.

In the process of movement of the seeder from the support wheels 2 of the section mounted on the beam 1 or the seeder, the drive is driven through a driven sprocket 13 mounted on the shaft 14 of the metering disk 8 of the metering apparatus 3. Seeds 15 from the hopper 7, through the output window 11 under their own weight fall into the internal the cavity of the metering disk 8 and reach a certain layer of cell 9. Cells 9 through, made in the form of open half rings, their number and size depend on the characteristics of the seeds 15 sown crops and on the seeding step. Seeds 15 fall into the cells 9 and are kept from falling out by the rim 12 adjacent to the metering disk 12. When adjusting the metering device 3 by turning the rim 12 relative to the metering disk 8, it is ensured that when approaching the edge of the rim 12, excess seeds are crumbled under their own weight. The seeds 15, which fell into cell 9, rise to a certain height and, reaching the edge of the rim 12, fall out through the seed tube 4 into the groove opened by the opener 5. The seeds are pressed into the bottom of the groove with a press wheel 6. Single-seeded sowing of seeds of various shapes and sizes 15, and Seeding with nests is achieved by horizontal movement of the wall 10 of the hopper 7, which results in a gap between the metering disk 8 and the wall 10 of the hopper 7. Thus, the seeds 16 having

others, large sizes, also freely enter cells 9. The seeding rate is controlled by the rotational speed of the metering disk 8 and the number of cells 9 on the metering disk 8. The number of 3 seeds 15 fed into the metering device is determined by the size of the output window 11.

The experiments carried out in a laboratory setting for sowing sugar beet seeds showed the stability of the process, providing single-seeded sowing. In this case, cells 9 on the metering disk 8 were made with a diameter of 8 mm, the number of cells 60 pcs. The same disk was used to sow larger soybean seeds than sugar beet seeds.

The proposed utility model in comparison with the prototype and other well-known technical solutions has the following advantages:

- simplicity of design;

- the exception of replacing the seed discs when sowing seeds of different sizes;

- reliability of work;

- the exclusion of damage to the seeds, due to their self-shedding, and not forced cleaning.

Claims (1)

Precision seeder, including a frame with support wheels, sowing sections with seed hoppers, sowing devices, openers, seeding devices, characterized in that the sowing device is made in the form of a metering disk rotating in the vertical plane, the end part of which is crowned, with evenly spaced circles with cells made in the form of open half rings, which are adjacent to a vertically mounted wall of the seed hopper with an unloading window in the lower part, which can be moved in the horizontal plane with fixed thereto rim fitting bottom disc, the rim can be rotated relative to the metering disk.