Spherical disk of tillage tool

FIELD: agriculture.

SUBSTANCE: spherical disk of tollage tool has cutting blade, slots and holes in central part for installation and fixation of bearing body on axis. Slots are arranged in the form of curvilinear quadrangle with radial sides. Radial sides are arranged along curve of, for instance parabolic shape. Curvilinear radial sides are oriented with their convex side towards direction of disk rotation.

EFFECT: such version of design provides for lower traction resistance, improves soil grinding and crushing of stubble remains.

1 dwg

 

The present invention is intended for use in tillage implements, where the working body is a spherical cut-out or nevyresni disk with slits.

Known spherical disks used in tillage implements are provided with slots.

The disk (see U.S. Pat. US 1879193 And 27.09.1932) are provided with slots arranged at equal distance from the zone of penetration in the radial direction to the Central part.

The disadvantage of this drive is that the slots are cut a round shape, such slits bad crumble the soil and do not contribute to the grinding residue that causes an increase in the traction resistance of the disk.

Known disk (see SU 1358798 A1, 15.12.1987) prototype, where the slots are cut in the form of a sector with radial faces and the outer side of the arc of a circle, limiting the area of penetration and the inner side along the arc of a circle bounding the Central portion of the disk.

The disadvantage of this slot is that it is bad chops up the soil. It clogging residue, which ultimately leads to an increase in traction resistance.

The technical result of the invention is the reduction of traction resistance of the disk, the improvement crumbling soil and chopping crop residues.

The above is the technical result is achieved by that the slits of the disk is made in the form of a curved rectangle with a radial parties executed on a curve, for example a parabolic shape, and a curved radial side convex side is oriented in the direction of rotation of the disk.

In more detail, the invention will be described below.

The drawing shows a schematic drawing of a spherical disk tillage tools.

The disk is cut according to the drawing includes an axial mounting hole 1 and the mounting hole 2 for the installation and mounting of the bearing housing or axis. The disk is provided with slots 3 in the middle part "a", located at equal distance and elongated in the radial direction from the zone of penetration of the peripheral part of the disk "b" to the Central part, where the fixed bearing housing or axle. The slits made in the form of curvilinear quadrilateral with radial parties executed on a curve, for example a parabolic external (long) side along the arc of a circle with radius R1and internal (short) along the arc of a circle of radius R2and curved radial side convex side is oriented in the direction of rotation of the disk.

Does the drive as follows. The disk has a passive direction of rotation ω (arrow) and, in addition, in the process moving octopetala with velocity V (in the direction shown by the arrow), by processing the soil to a depth of h (area "b" on the disk). When this soil is cut by the disk and moves the spherical surface in the direction from the middle part (area "a" on the disk) to the Central (zone C). Is the relative loosening of the soil as it lifting up on the spherical surface of the disk, the integration of soil disturbance and friction of the soil on the soil becomes less than the force of adhesion to steel. The coefficient of friction does not change, but the result of a decrease in specific gravity, at a certain soil moisture, which results in its accumulation on the surface of the disk, and slush is more intense in the direction from the middle part (area "a" on the disk) to the Central (zone "C" on the disk), and the closer to the Central part, the stronger the slush.

In the present invention, through the slits in the middle part of the disc toward the center reduced the total area of contact of the disk with the soil, so that the specific pressure on the ground in this area will be more at a constant total normal pressure. Due to this, the adhered soil is cleared and prevents its accumulation in the process, i.e. there is a self-cleaning disc, which reduces traction resistance. Soil caught in the slots, forcibly crumble. Depending on the type and condition of the treated soil offers the suggested slots, with saber form, well crumble the soil by cutting with slip at the same time cutting residue, which reduces traction resistance of the disk. This technical result is achieved.

The presence of the slots allows you to reduce the contact area with the surface of the disk, which increases the unit pressure, promotes self-cleaning, eliminates clogging of the disk in the process. Improves the crushing of soil and chopping crop residues. All this, ultimately, reduces traction resistance, i.e. it ensures the achievement of the technical result.

The invention is industrially applicable and can be made in the conditions of the factory.

The spherical disk tillage tools having a cutting edge, notches and holes in the Central part for the installation and mounting of the bearing housing or axis, characterized in that the slits are made in the form of a curved rectangle with a radial parties executed on a curve, for example, a parabolic shape, and a curved radial side convex side is oriented in the direction of rotation of the disk.



 

Same patents:

FIELD: agriculture.

SUBSTANCE: method includes treatment of soil with spherical disks installed at attack angle, peripheral part of surface of which is arranged as wavy for provision of smoothly repeating variations of angle of attack of disks to the left and to the right from initial value of angle of attack of disks. Device comprises spherical disks arranged at the angle of attack and having cutting edge. Peripheral part of each spherical disk surface is arranged as wavy. Wave of disk, starting from cutting edge, is made as decreasing to disk centre with transition into sphere.

EFFECT: such technology and structural design make it possible to improve quality of cultivation with reduction of process energy intensity and improve efficiency of tiller disks operation.

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FIELD: agriculture.

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3 dwg

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FIELD: agriculture.

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2 cl, 3 dwg

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The invention relates to agricultural machinery, in particular to soil cultivating machines

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FIELD: agricultural engineering, in particular, equipment for tillage machines.

SUBSTANCE: tillage tool has flat disks with central mounting opening and annular circumferential cutting edge, and teeth provided on side surface. Teeth are made in the form of acutely sharpened small flat disks loosely put on shafts, which are rigidly and symmetrically attached to side surface of main disk at both sides thereof so that cutting edges of each small disk are arranged at the same level with cutting edge of main disk. Small disks have different diameters: half the disks have diameter twice the diameter of other half of the disks, said disks being arranged in alternation and at equal pitch with respect to one another. Small disks are spaced from main disk by distance half the distance of larger disks. All the disks are put on their respective shafts for rotation on roller bearings.

EFFECT: wider processing zone and provision for active tillage of soil by means of working tool.

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2 cl, 3 dwg

FIELD: agriculture.

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EFFECT: such technology and structural design make it possible to improve quality of cultivation with reduction of process energy intensity and improve efficiency of tiller disks operation.

2 cl, 3 dwg

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