RU2252519C1 - Cultivator tool - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: invention is designed for subsoil tillage. Proposed device contains post and chisel in form of elliptical cone whose base in place of conjugation with post has concave curvilinear surfaces. Section of chisel has form of ellipse changing along larger axis into blade whose point is at a distance of directrix of ellipse. Chisel is made for mounting additional cultivator hoe with mating of blades of chisel and hoe at obtuse angle. Blade of chisel is made saw like.

EFFECT: improved quality of soil tilling and undercutting of weed plants.

3 dwg

Description

The invention relates to agricultural machinery, in particular to tillage working bodies, and can be used for loosening the soil.

Known working body, including the stand and the bit, in which in order to improve the quality of loosening, the stand is made of two mating sidewalls, on the opposite sides of which the blades are made. The thickened part of the bit is made as part of an ellipsoid of revolution. The lower ends of the rack sides are made with multidirectional wings (RU patent No. 220712286, A 01 B 35/20, 35/26, 01/10/97).

The disadvantages of the described working body include: high soil resistance due to two mating sidewalls and insufficient loosening over the entire width of the inter-track, as well as an increase in mass, energy consumption, clogging of the space between the parts of the rack (rotation ellipsoid) and sidewalls with plant residues and soil, and the complexity of the design.

The closest device to the claimed object according to the set of essential features is the cultivator's working body, including a stand and a chisel, in which, in order to improve the quality of loosening and reduce traction resistance, the chisel is made in the form of an elliptical cone, the base of which has concave-curved surfaces at the interface with the stand , and the top of the cone is rounded off (busbar SU-1431698, A 01 B 35/26, 10.23.88).

The prototype and the claimed invention have the following similar essential features: a stand and a chisel in the form of an elliptical cone, the base of which at the interface with the stand has concave-curved surfaces.

The reasons that impede the achievement of the required technical result when using the known device include the low quality of crumbling and the insufficient loosening zone in between tracks along the depth of the arable profile, as well as insufficient destruction of weeds.

The invention consists in the following.

The problem to which the invention is directed is to increase the efficiency of loosening and crumbling the soil while cutting weeds.

The technical result is an increase in the quality of tillage and cutting weeds, as well as an increase in the area of tillage.

The specified technical result during the implementation of the invention is achieved by the fact that the working body of the cultivator includes a stand and a chisel in the form of an elliptical cone, the base of which at the interface with the stand has concave-curved surfaces, while the cross-section of the chisel has an ellipse shape that passes along the axis into the shape of a blade, the tip of which is located at a distance of the directrix of the ellipse.

In this case, the bit is made with the possibility of installing (attaching) an additional leg with the pair of blades of the bit and the leg at an obtuse angle, and the blade blade is sawtooth.

The invention is illustrated by drawings.

Figure 1 shows the working body of the cultivator, side view and top.

Figure 2 is a section bB and BB in figure 1.

Figure 3 - working body of the cultivator with a fixed additional paw, side view and top.

The working body of the cultivator (see figure 1 and figure 2) contains a bit 1 and a rack 2. The bit at the point of interface with the rack has a concave-curved surface 3.

In cross section, the bit has the shape of an ellipse, passing along the major axis into the shape of a blade, the tip of which is located at a distance of the directrix of the ellipse (figure 2) and is made in the form of sawtooth teeth (see figure 1).

To increase the zone of cutting weeds, the bit is made with the possibility of installing an additional paw 5, and the blade 6 of the paw should be joined with the blade 4 of the bit at an obtuse angle. The fastening of the legs 5 can be carried out, for example, using the fixing bolt 7 when inserting the legs in the guide slot 8 of the rack.

The working body of the cultivator works as follows:

When the working body moves at a given depth, the toe of the bit acts on the soil, causing crushing deformation in it. At the same time, the upper part of the bit acts on the soil in vertical and horizontal planes, causing deformation at an angle of 45 °.

The sliding deformation of the soil mass on the concave surface 3 creates friction of the soil particles or aggregates between each other (intra-soil friction), as a result of which the traction resistance is reduced. The sawtooth teeth of the edges 4 contribute to the wavy movement of the weed roots undercut at the depth of loosening of the soil, which improves the cutting process. To improve the quality of cutting weeds and increase the zone of deformation of the soil to the bit, it is possible to quickly mount an additional leg 5 with a pair of blade blades 4 and legs 6 at an obtuse angle.

Thus, the above information indicates that when using the invention the following set of conditions:

means, embodying the invention, in its implementation, is intended for use in agricultural machinery;

for the invention in the form described in the independent claim, the possibility of its implementation using the means and methods described above or known prior to the priority date is confirmed;

the means embodying the invention, when implemented, is capable of achieving the achievement of the technical result perceived by the applicant. Therefore, the claimed invention contributes to the requirement of “industrial applicability” under applicable law.

Claims (1)

The working body of the cultivator, including a stand and a chisel in the form of an elliptical cone, the base of which at the interface with the stand has concave-curved surfaces, characterized in that the section of the chisel has an ellipse shape that passes along the major axis into the shape of a blade, the tip of which is located at a distance of the directrix an ellipse, while the bit is made with the possibility of installing (fixing) an additional leg with the pair of blades of the bit and legs at an obtuse angle, and the blade blade is sawtooth.

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