RU219777U1 - WORKING BODY OF THE SOIL-CLOWING TOOL - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to disk tillage implements. The technical result of the utility model is to improve the quality of work. The technical result is achieved due to the fact that the disk is installed with a bulge from the bearing assembly, the slots are located at the same distance from each other, each slot is made by cutting the disk along a circular arc with a radius equal to 0.8 of the disk radius and a length equal to 1/16 of the length a circle and a section in the radial direction in the form of a part of a logarithmic curve, the lower edge of which merges with an arcuate section, and the upper edge adjoins the middle flat part of the disk, the edges of the sections are bent outward at an angle of 30°. The working body of the soil-cultivating tool, including a rack with a bearing assembly and a disk made of sheet material attached to the bearing assembly with bolts, having a surface of variable curvature with slots and a flat bottom with holes, the disk being mounted with a bulge from the bearing assembly, the slots are located at the same distance from each other, each slot is made by cutting the disk along an arc of a circle with a radius equal to 0.8 of the radius of the disk and a length equal to 1/16 of the circumference and a cut in the radial direction in the form of a part of a logarithmic curve, the lower edge of which merges with the arcuate cut, and the upper edge adjoins the middle flat part of the disc, the edges of the incisions are bent outward at an angle of 30°.

Description

The utility model relates to agricultural engineering, in particular to disk tillage implements.

Known working body of a disk tillage tool [Author's certificate RU patent No. 138453, IPC class. А01В 21/00, 2013] with a bearing assembly, a rack and a disk equipped with a ring on the inner side of its surface in the center, decreasing in thickness from the center to the periphery and smoothly mating with the inner surface of the disk, the disk and the ring have slots that match in shape and dimensions and forming a through hole.

The disadvantage of such a working body is the high metal consumption and the complexity of manufacturing. In addition, by increasing the mass of the working body, the energy intensity of the technological process increases and the durability of all joints decreases.

The closest analogue to the claimed, adopted as a prototype, is the working body of a tillage tool [Author's certificate RU patent No. 152563, IPC class. А01В 21/00, 2015], including a rack with a bearing assembly and a disc made of sheet material, bolted to the bearing assembly, having a surface of variable curvature with slots and a flat bottom with holes.

The disadvantage of this design is the low quality of work. The disc loosens the soil poorly, especially cohesive and high humidity, and does not sufficiently crush the roots of weeds. Soil from a cohesive and wet layer and plant residues are poorly captured by the slots and slide over the surface of the disc without additional grinding.

The technical result of the utility model is to improve the quality of work.

The technical result is achieved due to the fact that the disk is installed with a bulge from the bearing assembly, the slots are located at the same distance from each other, each slot is made by cutting the disk along a circular arc with a radius equal to 0.8 of the disk radius and a length equal to 1/16 of the length a circle and a section in the radial direction in the form of a part of a logarithmic curve, the lower edge of which merges with an arcuate section, and the upper edge adjoins the middle flat part of the disk, the edges of the sections are bent outward at an angle of 30°.

The specified set of essential features ensures the appearance of the inventive working body of the tillage tool of new properties that are different from the prototype.

Thus, the claimed features of the utility model meet the criterion of "novelty".

In FIG. 1 shows a diagram of the working body of a tillage tool, rear view;

in fig. 2 - the same, side view.

The working body of the soil-cultivating tool, including a rack 8 with a bearing assembly 9 and a disc 5 of sheet material attached to the bearing assembly with bolts 7, having a surface of variable curvature with slots 3 and a flat bottom 6 with holes, and the disc 5 is installed with a bulge from the bearing assembly 9, slots 3 are located at the same distance from each other, each slot is made by cutting 2 disks along an arc of a circle with a radius equal to 0.8 of the disk radius and a length equal to 1/16 of the circumference and a cut 1 in the radial direction as part of a logarithmic curve, the lower the edge of which merges with an arcuate incision 2, and the upper one adjoins the middle flat part 6 of the disk, the edges of the incisions are bent outward at an angle of 30°.

The working body of the tillage tool works as follows.

The rack 8 of the working body is attached to the frame of the soil-cultivating implement in such a position that the disk 5 is given an angle of attack and an angle of inclination to the vertical plane set at an angle of attack. In the process of movement, due to its rotation, the disk 5 cuts off and feeds the soil layer up along the outer convex surface, which has a variable curvature. In this case, the layer crumbles by bending. At the same time, the bent edges 4 of the disc are alternately cut off from the layer of soil chips and sent to the slots 3.

The soil and crop residues that have fallen into the slots 3 are forcibly crushed into smaller fragments, and the process takes place in the sliding cutting mode.

Thus, the proposed version of the design of the working body of the disk tool provides more intensive crumbling of the soil and grinding of the soil and crop residues, as compared with the analogue, which improves the quality of work.

Information sources:

1. RU patent No. 138453, IPC class. A01B 21/00, 2013.

2. RU patent No. 152563, IPC class. A01B 21/00, 2015.

Claims (1)

The working body of the soil-cultivating tool, including a rack with a bearing assembly and a disk made of sheet material attached to the bearing assembly with bolts, having a surface of variable curvature with slots and a flat bottom with holes, characterized in that the disk is installed with a bulge from the bearing assembly, the slots are located at the same distance from each other from each other, each slot is made by cutting the disk along an arc of a circle with a radius equal to 0.8 of the radius of the disk and a length equal to 1/16 of the circumference and a cut in the radial direction in the form of a part of a logarithmic curve, the lower edge of which merges with an arcuate cut, and the upper one adjoins the middle flat part of the disk, the edges of the incisions are bent outward at an angle of 30°.