RU2201048C2 - Working unit for tillage tool - Google Patents

Abstract

FIELD: agricultural engineering. SUBSTANCE: working unit has disk with flat part and corrugated cutting edge provided with right-hand and left-hand projections. Corrugated part of disk has semicylindrical slots with centers at points on plane of disk equally spaced from maximal and minimal radii of corrugations conical surface. Cutting edge is extending through slots and on right-handed and left-handed projections of conical surface of corrugations to define complex three-dimensional curve approximating epicyclic shape (when projected on disk surface). Right-handed and left-handed projections of corrugations define conical scoop-shaped wedges with acute central angles and apexes positioned on flat part of disk. EFFECT: reduced labor intensity for soil cultivation, improved quality of cultivated soil, and increased crop yield. 5 dwg

Description

 The invention relates to the field of agricultural mechanical engineering, in particular to the working bodies of tillage tools.

 Known working body of a tillage implement containing a corrugated disk and hub (British Patent 1172484, CL A 01 B 49/06, 1969). A disadvantage of the known analogue is that it does not provide high-quality crumbling of the soil and requires great efforts for deepening. A technical solution is known (accepted application of France 2013205, class A 01 B 15/00, 1970), which is a tillage working body containing a flat disc with a cutting edge and a corrugated knife. However, it does not provide high-quality crumbling of soil in the zone of the seed bed when installing it on a seeder in front of the coulter due to clogging with plant residues.

 Better processing is created by the working body according to the USSR copyright certificate 581896, published on 11/30/07, Bulletin 44 (adopted by the authors as a prototype), consisting of a flat part of the disk and a cutting edge with a corrugated surface. The disadvantage of the prototype is the complexity of the design. Since it contains a flat disk with a cutting edge made in the form of trapezoidal teeth with radially located slots between them, in which a corrugated knife is fixed. In addition to the complexity of manufacturing such a design, a large effort (more than 200 kg) is required for its penetration into the soil.

 The technical solution to the problem is to simplify the design, improve the quality of loosening the soil, reduce the effort to enter the disc into the soil and cutting due to cutting with sliding.

 The task is achieved in that the corrugated part of the disk is equipped with semi-cylindrical cutouts with centers at points located on the plane of the disk at an equal distance from the maximum and minimum radii of the conical surface of the corrugations, while the cutting edge passes along the cutouts and along the right and left protrusions of the conical surface of the corrugations forming a complex spatial curve close to the epicycloid (when it is projected onto the plane of the disk), and the right- and left-side protrusions of the corrugations form conical scoops wedges with sharp central corners and peaks located on the flat part of the disk.

 According to the technical, scientific and patent documentation, the totality of the features that occur in the claimed device is not revealed, which indicates its inventive step.

 Figure 1 shows the proposed working body (general view), figure 2 shows a section of a disk A-A along the corrugations, figure 3 shows a section BB, a section of a semiconical right-side corrugation of a disk, figure 4 shows a section BB, also a section semiconical left-sided corrugation of the disk on the other (reverse) side thereof, in figure 5 - section GG, entirely passing along the flat (non-corrugated) part of the disk (plane SS).

The working body consists of a flat 1 part of the disk and corrugated with the right (2P) - and left-side (2L) protrusions and with a cutting edge 3, (figure 1-4). The corrugated part of the disk is equipped with half-cylindrical cutouts with a diameter D (figure 1, 3 and 4) with centers at points 0 (figure 1, 3 and 4) located on the plane of the disk at an equal distance from the maximum R _max (figure 3 and 4) and the minimum R _min (figure 3 and 4) of the radii of the conical surface of the corrugations, while the cutting edge 3 passes along the cutouts 5-6-7 (figure 1) and along the right and left protrusions 5-4-10 (figure 1) of the conical surface of the corrugations, forming a complex spatial curve close to the epicycloid (when it is projected onto the plane of the disk), and the right (2n) - and the left The external (2L) corrugation ridges (Figure 1-4) form conical scoop-like wedges with sharp central corners α (Figure 1, 3 and 4) and vertices 0 ₁ (Figure 1, 3 and 4) located on the flat part 1 of the disk.

 Thus, the novelty is the slotted holes with a half-diameter D on the corrugations of the disk, forming scoop-like protrusions (one of them is 4-5-6-7-8 in figure 1). Its sides 4-5-6 and 6-7-8 (figure 1) play the role of a wedge, which is important for the destruction of the soil, cutting the stems with sliding and deepening with less effort.

 Section G-D (figure 5) passes along a flat (non-corrugated) surface and represents the plane of the S-S disk.

 The working body works as follows. When the machine moves, the disks roll over the surface of the field, cut the stems of the plants with sliding and deepen to a given depth with less effort, destroying the surface layer of soil with high-quality crumbling.

Claims (1)

 The working body of the tillage implement, consisting of a flat part of the disk and corrugated with right- and left-side protrusions with a cutting edge, characterized in that the corrugated part of the disk is equipped with semi-cylindrical cutouts with centers at points located on the plane of the disk at an equal distance from the maximum and minimum radii of the conical the surface of the corrugations, while the cutting edge passes along the cuts and along the right and left protrusions of the conical surface of the corrugations, forming a complex spatial curve close to an acycloid (when it is projected onto the plane of the disk), and the right- and left-side protrusions of the corrugations form conical scoop-like wedges with sharp central corners and peaks located on the flat part of the disk.

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