RU183481U1 - The working body of the tillage implement - Google Patents

Abstract

The utility model relates to agricultural machinery, in particular to tools for tillage. The working body of a tillage implement of this design will reduce traction resistance, increase durability and maintainability. 2 ill.

Description

The utility model relates to agricultural machinery, in particular to tools for tillage.

Known tillage working body [SU 1380626 A1, AB 35/26 (2000.01), 03/15/1988] containing a cutting blade made according to a logarithmic curve with a cutout in the form of a logarithmic spiral with curvature and protrusions in the form of a logarithmic spiral with curvature and protrusions in the shape parabolas of the fourth degree.

The disadvantages of this working body are the significant energy consumption of the cultivation process, and such a cutting blade prevents the condition of sliding cutting of the soil and sliding of weeds along it. This leads to the accumulation and enveloping of plants, in general to clogging the working bodies and thereby reduce the quality of the soil treatment.

Known working body of a cultivator-plane cutter [SU 1614767 A1, АВВ 35/20 (2000.1), А01В 35/26 (2000.1), 12/23/1990], containing a stand with a paw having wings with cutting edges made in the form of conjugate segments of logarithmic spirals ; flaps; the working surface of each wing, made in a parabola, and the generatrix of the working surface is made in the form of curves with a transition from parabola to a straight line.

The disadvantages of this invention are the rejection of the soil to the side, and this leads to a deterioration in the sifting of erosion-hazardous particles to the bottom of the furrow; compaction of the bottom of the furrow, also such a design of the working surface does not contribute to quality crumbling of the soil.

The closest analogue is the working body of the tool for subsurface tillage [RU 103267 U1, АВВ 39/20 (2006.01), 04/10/2011], including a stand and a flat-cutting paw fixed to it. The working surface is made by a double convexity of upward curvature: negative in the cutting part and positive in the loosening part. The generatrix of the working surface of the paw, located in a transverse vertical plane passing perpendicular to the longitudinal axis of the paw through its upper point (vertex), located in front of the rack, is made in the form of smoothly conjugated sections of the logarithmic spiral: negative in the cutting part and positive in the loosening part.

The disadvantages of this working body is the relatively low maintainability.

The objective of the utility model is to reduce traction resistance, increase durability and maintainability.

The essence of the utility model is that for the implementation of this task, the proposed working body of a tillage implement is made of a central element, front and rear side elements, mounting screws and a rack, and is clear from the description and FIG. 12.

In FIG. 1 shows a General view of the working body of a tillage implement, which is made of a central element 1 made of a rectangular profile, S-shaped, with a sharpening angle in the bow of 45 degrees, having a cutout in the lower part, a depth equal to the thickness of the front 2 and 2 rear 3 side elements (in Fig. 1 are separated by the main line 4). The front and rear side elements are fixed with screws 5, two for each element. Moreover, the rear element is attached to the rack 6, and the front by means of screws to the Central S-shaped element. The rear element is mounted in relation to the front element without protrusion. The working surface is formed by the front and rear side elements, it is made of two parts: plane-cutting (not shaded in Fig. 1) and curved (shaded in Fig. 1).

The cutting edge 7 of the front cutting element is made with the upper sharpening along the entire length, except for the side cut-offs 8. In the frontal part, the blade of the cutting edge of the front element is made in the form of a logarithmic spiral positive in the bow and negative in the side cut-offs. Side cuts 8 are made in a straight line. A technological groove is made on the rear side of the front element for the possibility of surfacing of a wear-resistant coating (in Fig. 1 it is shown by a dashed line). The depth of the technological groove h is 1-2 mm (Fig. 2, section AA), and the width b is 15-20 mm.

The curved working surface is made in the form of a dorsoventrally flattened [4, 5] truncated half-cone, mating with the plane-cutting part and side edges 8, sections of a logarithmic spiral of negative curvature, which allows to reduce the frontal projection area of the working body, and therefore reduce traction resistance [6].

The working body of the tillage implement works as follows: the soil is cut by the central element 1 and the front element 2 with cutting edges 7, the rear element 3 is further deformed and crumbled. During operation, the spring strut 6 creates additional vibration, and the soil is displaced from the rear edge of the rear element 3.

The working body of a tillage implement of this design allows you to achieve the objectives: reducing traction resistance through the use of a plane-cutting and curved surface, as well as by maintaining the sharpness of the cutting edge when using wear-resistant coatings, which in turn will allow for an increase in durability, and a collapsible design elements increases maintainability, due to the rapid change of the front, most wearing part of the surface of the working body.

Information sources

1. SU 1380626 A1, A01B 35/26 (2000.01). Tillage working body / A.S. Kushnarev, Z.M. Shanina - 3860914; Stated 02/26/1985; Publ. 03/15/1988.

2. SU 1614767 A1, A01B3 5/20 (2000.01), A01B 35/26 (2000.01). The working body of the cultivator-plane cutter / H.S. Gainanov, G.G. Bulgariev - 4407749; Stated April 8, 1988; Publ. 12/23/1990.

3. RU 103267 U1, А01В 39/20 (2006.01), 04/10/2011. The working body of the tool for subsurface tillage / G.V. Pikmullin, G.G. Bulgariev, Iblaminov F.F. - 2010143199/21; Announced on 10/21/2010; Publ. 04/10/2011.

4. Biological Encyclopedic Dictionary [Electronic resource] - Access mode: http://enc-dic.com/biology/Dorsoventraln-1760/.

5. Dorsoventrally flattened [Electronic resource] - Access mode: http://animalkingdom.su/books/item/f00/s00/z0000020/st036.shtml.

6. Dzhabborov N.I., Fedkin D.S. Terradynamics of tillage machines [Text] // Young scientist, No. 11, 2015. - p. 311-315.

Claims (1)

The working body of a tillage implement made of a central element having a cutout in the lower part of the front and rear side elements, the cutting edge of the front flat cutting element being made with upper sharpening along the entire length, except side cuts, and in the frontal part the cutting edge of the front element is made in the form of a logarithmic spiral positive in the bow and negative in the part of the side cuts, while on the back of the front element a technological groove is made, and the curviline ynaya working surface is formed as a flattened truncated dorsoventrally semicone, mating with ploskorezhuschey sawn-off portion and the side portions of the negative curvature of a logarithmic spiral.

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