RU204794U1 - Grain Seeder Single Disc Opener - Google Patents

Abstract

Utility model The opener includes a vertical disc cutter, made in the form of a cone, mounted on the body. On the side opposite to the disc knife, a seed-fertilizer conductor, a groove former and an elastic gage wheel are installed. The seed-feed line and the groove former are rigidly attached to the body, and the elastic gauge wheel with the help of a bearing assembly is mounted on a bracket pivotally attached to the body, with the possibility of height adjustment relative to the circular knife. The elastic gauge wheel has the shape of a truncated cone, and its working surface is ribbed. During the sowing process, the elastic gauge wheel is pressed against the disc coulter, acting as a scraper. The location of the elastic gauge wheel on the side opposite to the disc coulter makes it possible to partially compensate for the reaction of the soil to the disc coulter and ensures a stable coulter travel. significantly reduces the time spent when adjusting the seeder to a given seeding depth.

Description

The utility model relates to agricultural engineering and can be used in seeding machines.

Known single-disc opener containing a housing, a flat disc mounted at an angle to the direction of travel, seed and directional guides, a protective rod and a removable disc-shaped flange in the form of a truncated cone, the smaller base of which is attached to the plane of the disc (SU author's certificate 250572 Single-disc opener MPK7 А01С 7 / 20 Single disc opener. - Application 1140647 / 30-15; declared 03.16.1967; published 08.12.1969, bul. 26).

The disadvantage of the known design is that the disc is mounted at an angle to the vertical. This leads to an unstable coulter travel both in the sowing depth and in the direction of travel of the sowing unit. The execution of the flange in the form of a truncated cone with attachment to the disc with a smaller base leads to the capture of the soil by the inner cavity of the cone. This causes an additional furrow to form with the large base of the taper and results in an unstable coulter depth travel.

The closest in technical essence is a combined single-disc opener, consisting of a vertically positioned disc installed at an angle to the direction of movement on a bracket that ensures that the traction forces coincide with the direction of movement of the opener. On the outside, the disc has a limiting flange in the form of a half of an ellipsoid of revolution, fixed to the disc by removable elements. Behind the bracket there is a seed pipe and a fertilizer pipe, between which there are harvesters for covering the seeds with a moist soil layer and covering the fertilizers with the provision of a soil layer between the seeds and fertilizers with different heights of soil grip (combined single-disc opener: patent for invention No. 2223625 RF. 200712363/12 declared 09/04/2002; published 02/20/2004.)

The main design flaws of this opener are:

- the need for replaceable flanges for various deep sowing of seeds;

- instability of the coulter travel in depth due to a mismatch in the direction of movement of the coulter from the traction lines.

The declared model is aimed at eliminating the indicated drawbacks and from its implementation we will obtain the following result: the stability of the coulter stroke in depth and a significant reduction in time consumption when setting up the seeder at a given seeding depth.

The technical result is achieved due to the fact that the disc of the opener has a conical shape, and on the inner side of the disc on the body there is a seed tube, a stationary groove former and an elastic copying wheel made in the form of a truncated cone with the ability to adjust the height of the position relative to the disc of the opener. The working surface of the elastic gauge wheel is ribbed.

The utility model is illustrated by drawings:

FIG. 1 shows a single disc coulter with a gauge wheel, side view.

FIG. 2 shows a view A in FIG. one.

FIG. 3 shows a section b-b in Fig. 2.

The single-disc opener of a grain seeder contains a vertically located disc knife 1 (Fig. 1), made in the form of a cone, which provides cutting of the soil and encountered weeds in the vertical plane. The disc coulter 1 is attached to the housing 2 of the opener by means of the bearing assembly 3. On the inner side of the disc coulter 1 there is a seed-fertilizer guide 4, a groove shaper 5 and an elastic follower wheel 6.

The seed-feed line 4 and the groove former 5 are rigidly fixed to the body 2. And the elastic gauge wheel 6 is attached to the bracket 8, which is hinged to the opener body 2, with the possibility of height adjustment relative to the disc knife 1 by the mechanism 9. Elastic copying wheel 6 has the shape of a truncated cone, and its working surface is ribbed 10. The opener is attached to the frame of the seeder by means of a leash 11. The pressure of the opener on the soil is regulated by a spring 12.

The single disc opener of a grain seeder works as follows.

When the seeder moves across the field, the disk knife 1 cuts the soil and plant residues in a vertical plane to the depth of planting seeds and fertilizers, which is provided by an elastic gauge wheel 6. The cut soil layer is shifted to the left due to the conical shape of the disk knife 1, the groove former 5 forms a groove , where seeds and fertilizers get through the seed-fertilizer line 4. Seeding of seeds and fertilizers is carried out with a harrow from the seeder (sowing unit). In the process of sowing, the elastic support wheel is pressed against the disc knife 1, performing the function of a scraper.

The location of the elastic gauge wheel 6 on the side opposite to the disc coulter 1 allows to partially compensate for the reaction of the soil to the disc coulter and ensures the stability of the coulter stroke.

The presence of an elastic gauge wheel 6 with the ability to adjust in height relative to the disc knife 1 and the groove former 5 eliminates the need for replaceable flanges for different depth sowing of seeds and significantly reduces the time required when adjusting the seeder to the sowing depth.

Claims (1)

Single-disc opener of a grain seeder containing a disc cutter, a groove former and a seed tube, characterized in that it is equipped with a height-adjustable elastic gauge wheel in the shape of a truncated cone, and the disc coulter is made in the form of a cone, with a groove former, a seed tube and an elastic gauge wheel installed on the body from the inner side of the circular knife, and the working surface of the elastic gauge wheel is ribbed.

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