Cultivator working body

Abstract

The utility model relates to agriculture. The cultivator's working element includes a wingtip with a shank. Two bladed disks with an adjustable angle of attack are mounted to the shank of the wingtip at the rear of the shank, symmetrically relative to the lateral sides of the wingtip. The bladed disk is a flat disk with a diameter of 0.4 m, with cutouts along its edge forming blades with a 30° pitch. The blades of the disk are set at an angle of 30° relative to each other. This improves the quality of soil cultivation by reducing the ridges and lumps of the field surface. 2 fig.

Description

[0001] The utility model relates to agricultural engineering, namely to the working bodies of cultivators for continuous soil cultivation.

[0002] Agrotechnical requirements for surface tillage provide for a uniform tillage depth and leveling of the field surface; the height of the ridges of the loosened layer should not exceed 3...4 cm.

[0003] The KPS-4 cultivator is known, comprising a beam on which sections with ridges are mounted, with working elements mounted on them in the form of a rack with a point (Khalansky V.M., Gorbachev I.V. Agricultural Machines - Moscow: Kolos, 2006, pp. 74-76). When the cultivator's arrow-shaped paws move, furrows are formed in the soil; the higher the working speed, the greater the width and depth of these furrows.

[0004] The Kristall cultivator from agricultural machinery manufacturer Lemken (official website URL: https: / / lemken.com / ru-ru / innovacionnye-mashiny / obrabotka-pochvy / sternevaja-obrabotka / kultivator / kristall-9) is equipped with furrow-closing working elements made in the form of cut hemispherical disks. A disadvantage of this design is that the disks are installed in a single row behind two rows of tines, with each tine forming its own furrow and the disks not fully covering them.

[0005] A cultivator (patent CN223872788U, A01B 49 / 06 published 06.02.2026) is known with working elements comprising a wing-shaped plow with a shank and two bladed discs with an adjustable attack angle, attached to the rear of the shank in the direction of travel, symmetrically relative to the sides of the wing-shaped plow. A disadvantage of this solution is that the blades are flat, without a bend in the plane of the disc's rotation. Therefore, the soil loosened by the plow will be thrown back along the same trajectory by each blade. Therefore, the furrow formed by the passage of the working element ahead will be closed unevenly in width.

[0006] The closest in technical essence is the cultivator working element (USSR Certificate of Approval No. 1794329, IPC A 01 B 35 / 26, 1993), which consists of a tine with a fixed paw with wings equipped with flaps, each flap equipped with a toothed spherical disk. The working process is as follows: the paw cuts a layer of soil, which then falls onto the surface of the paw and disks, and moves relative to the surface of the disk, which throws the soil along a certain trajectory, thereby blocking the track of the tine. The disadvantage of this design is that a stagnant zone of soil movement will form at the junction of the disk and the flap, causing the paw to become clogged. Additional soil crumbling will be limited by the inability to adjust the angle of attack of the disk.

[0007] The technical result that can be achieved with the help of the proposed utility model is to improve the quality of soil cultivation by reducing the ridge and lumps of the field surface.

[0008] The technical result is achieved by the fact that two bladed disks with an adjustable angle of attack are installed on the stand of the arrow paw in its rear part in the direction of movement, symmetrically relative to the lateral sides of the arrow paw, while the bladed disk is a flat disk with a diameter of 0.4 m, along its edge there are cutouts that form blades with a pitch of 30°, while the blades of the disk are spread relative to each other at an angle of 30°.

[0009] The utility model is illustrated by drawings.

[0010] Fig. 1 shows the working element of the cultivator (side view); Fig. 2 shows the working element of the cultivator (top view);

[0011] Implementation of a utility model.

[0012] The working element of the cultivator (Fig. 1) contains a stand 1 with a lancet paw 2 fixed to it and two bladed disks 3. The bladed disks are mounted on hubs 4 (Fig. 2) symmetrically on both sides of the lancet paw 2 with the ability to adjust the angle of attack to the direction of movement of the lancet paw 2, as well as to change the height of their installation relative to the paw. The required angle of attack of the blade disks 3 to the direction of movement of the unit is fixed on the bracket 7 using lock bolts 5 inserted into the holes 6 of the adjusting plate of the hub 4. The height position of the blade disks 3 is set by moving the housing 8 along the post 1 of the arrow paw 2 and then fixing it with bolt 9. The blade disk is a flat disk with a diameter of 0.4 m, while cuts are made along its edge, forming blades, the blade pitch is 30°. The blades of the disk are set relative to each other at an angle of 30°.

[0013] The cultivator's working element operates as follows. The desired depth of the 2-blade share and the angle of attack of the 3-blade discs are preset, as well as the depth of the 3-blade discs. As the working element moves, 2-blade share loosens the soil and trims weeds. The 3-blade discs, following it and set at a preset angle of attack, further crumble the soil, break up clods of soil with their blade tips, and throw the soil displaced by the 2-blade share's wings back into the furrow formed by its passage. The disc blades will throw the soil along different trajectories. Blades bent inward, that is, closer to the arrow-shaped paw, will throw the soil toward the center of the furrow, and blades bent outward will throw the soil closer to the edges of the furrow, which will ensure that the furrow is evenly filled with soil across its width.

[0014] The cultivator's working element ensures good soil crumbling and mixing, uniform filling of the furrow formed by the tine, and therefore reduces the lumpiness and ridge formation of the field surface, which creates better operating conditions for seeding machines and ultimately contributes to an increase in crop yields.

Claims

A cultivator working element comprising a lancet paw with a stand, characterized in that two bladed disks with an adjustable angle of attack are mounted to the stand of the lancet paw in its rear part along the direction of movement, symmetrically relative to the lateral sides of the lancet paw, wherein the bladed disk is a flat disk with a diameter of 0.4 m, along its edge there are cutouts forming blades with a pitch of 30°, wherein the blades of the disk are set apart relative to each other at an angle of 30°.

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