RU227791U1 - DISC WORKING BODY OF A SOIL CULTIVATION IMPLEMENT - Google Patents

Abstract

The utility model relates to agricultural engineering, namely to working bodies of machines for surface tillage. The technical result that can be achieved using the proposed utility model: eliminating sticking of working bodies when working on wet soils. The essence of the utility model: the disk working body is a flat disk with cutouts made along the outer edge, which form blades with working edges and sharp tops. The blades of the disk are spaced relative to each other, have a sharpening of the working edge on the outer side of the blade, and a scraper is installed between them. The disk working body for work must be installed with an attack angle equal to 0°, relative to the course of the tillage tool. The proposed disk working body, in comparison with known technical solutions, will allow stable work on soils with a higher humidity of 24-34%.

Description

The utility model relates to the field of agricultural engineering and can be used in machines for surface soil cultivation.

A working element is known (RU Patent No. 2579769, A01B 23/06 A01B 15/16 published on 10.04.2016, Bulletin No. 10), made in the form of a spherical disk with cutouts along its edge. The peripheral edge of the blades formed by the cutouts is made in such a way that one end is bent inward into the sphere, and the other - to the outer side of the sphere. The disadvantage of this working element is the displacement of the soil to the side, that is, the formation of a ridge; when working on wet soils, it sticks to the inner part of the spherical disk.

The closest device of the same purpose to the claimed object is a disk section (patent for utility model of the Russian Federation No. 192574 IPC A01B 21/04, published on September 23, 2019, bulletin No. 27), which includes a pair of disks on horizontal axes and with removable wedge-shaped teeth with an oblique cut, the body of the wedge-shaped tooth is made of a curved shape with an offset of the working part relative to the base to the right or left, which allows to increase the width of the disk capture. The disadvantage of this working element will be poor quality of work on wet soils due to sticking of the inter-tooth space of the disk.

The technical result that can be achieved with the help of the proposed utility model is the elimination of sticking of working parts when working on wet soils.

The technical result is achieved by the fact that the disk is made flat with alternating cutouts along its edge, the blades formed by the cutouts are spread in opposite directions relative to the longitudinal plane of the disk, and a scraper is installed between the blades in a plane transverse to the plane of rotation of the disk.

The utility model is illustrated by drawings.

In Fig. 1 - disk working element (side view);

Fig. 2 - disk working element (front view);

Fig. 3 - cross-section of the blade.

Implementation of a utility model

The disk working element (Fig. 1) is a flat disk with a diameter of at least six times the depth of soil cultivation, with cutouts 1 made along its edge, forming blades 2 with working edges 3 and sharp tops 4, the height of the blades (the depth of the cutouts) is 0.2-0.3 times the diameter of the disk, the pitch of the blades is 30°. The blades 2 of the disk (Fig. 2) are set apart relative to each other at an angle of 28-35°, which ensures that during surface cultivation of the soil to a depth of 0.05-0.1 m the size of the soil clods meets the agrotechnical requirements (0.025-0.03 m), a scraper 5 is installed between the blades. The blade (Fig. 3) has a sharpening of the working edge at an angle of 25°, with the sharpening made on the outer side of the blade. The disc working element for work must be installed with an attack angle equal to 0° relative to the course of the soil-cultivating implement.

The working process of the disk working element proceeds as follows:

when moving a tillage tool over the surface of a field, the blades of the disc, installed with an attack angle of 0°, are driven into the soil, and making the tip sharp helps reduce the force required for driving it in, loosen its top layer, cut plant residues and mix them with the soil, a scraper installed between the blades of the disc removes the soil stuck to them and throws it onto the surface of the field.

The proposed disc harrow, in comparison with known technical solutions, will allow stable operation on soils with higher humidity of 24-34%.

Claims (1)

A disk working element, which is a flat disk with blades formed by cutouts along its edge, spread in opposite directions relative to the longitudinal plane of the disk, characterized in that a scraper is installed between the blades in a plane transverse to the plane of rotation of the disk.

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