RU2617578C1 - Tillage roller - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: soil compactor comprises a hollow cylinder with evenly spaced around the circumference ribs (1) mounted on a screw line and connecting the vertical wheels (2). The hollow cylinder is provided with an axis situated on its symmetry axis. Inside the hollow cylinder, drawbars are radially and pivotally mounted on the axis. At the ends of leads (5) the hammers (6) are mounted, they have the shape of a sector of the ring. The outer radius of the hammers is less than the radius of the hollow cylinder. The distance between the hammers and the outer surface of the inner surface of the hollow cylinder is increased in both directions from the center of the bottom surface of the hammers to their lower transverse edges center from 0.25…10 mm to 50 mm. Hammers (6) provided with an opening (7), staggered, and the diameter of the holes (7) does not exceed the maximum allowable size of lumps agronomic requirements.

EFFECT: invention provides the improved quality of compacting the soil and breaking the soil lumps.

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Description

The invention relates to agricultural machinery, in particular to tillage rollers.

Known tillage roller [Roller combined tillage unit // Patent of the Russian Federation No. 2360390. - Publ. July 10, 2009 Byul. No. 19], including a hollow cylinder with square ribs evenly spaced around the circumference, located along a helical line connecting vertical disks, in the center of which bearing assemblies are mounted with rods fixed to them. A smooth cylinder is placed in the space of the hollow cylinder with the possibility of free rolling on its inner surface.

A disadvantage of the known device is the insufficient quality of soil rolling and crumbling of lumps of soil.

EFFECT: improved quality of soil rolling and crumbling of soil lumps.

The technical result is achieved by the fact that the hollow cylinder is provided with an axis located along the axis of its symmetry. Inside the hollow cylinder, axles are mounted radially and pivotally on the axis. At the ends of the leashes, hammers are installed, which have the form of a sector of the ring. The outer radius of the hammers is smaller than the radius of the hollow cylinder. The distance between the outer surface of the hammers and the inner surface of the hollow cylinder increases in both directions from the center of the lower surface of the hammers to the center of their lower transverse edges from 0.25 ... 10 mm to 50 mm. Hammers are made with holes that are staggered, and the diameter of the holes does not exceed the maximum size of the lumps allowed by the agrotechnical requirements.

In FIG. 1 shows a general view of a tillage roller; FIG. 2 is a sectional view of a tillage roller along AA, in FIG. 3 - hammer, bottom view.

The tillage roller is made in the form of a hollow cylinder with ribs 1 evenly spaced around the circumference. The ribs 1 are mounted along a helical line and connect vertical disks 2 mounted on axis 3, which is located along the symmetry axis of the hollow cylinder. The vertical discs 2 are provided with mounts 4, by means of which the tillage roller is connected to the hitch of the tillage unit. In the inner space of the hollow cylinder, the leads 5 are radially and pivotally mounted on the axis 3. Hammers 6 are installed at the ends of the leads 5, which have the shape of a ring sector. The radius of the hammers 6 is less than the radius of the hollow cylinder. The distance between the outer surface of the hammers 6 and the inner surface of the hollow cylinder increases in both directions from the center of the lower surface of the hammers 6 to the center of their lower transverse edges from 0.25 ... 10 mm to 50 mm. Hammers perform with holes 7 located in a checkerboard pattern. The diameter of the holes 7 does not exceed the maximum allowable agrotechnical requirements lump size.

Tillage roller operates as follows. The axis 3 of the tillage roller is connected to the hitch of the tillage unit. In the process of movement of the tillage roller, lumps of soil lying on its surface fall between the ribs 1 into the inner space of the hollow cylinder. The hammers 6 mounted on the ends of the leashes 5 are in contact with lumps of soil that have fallen into the interior of the hollow cylinder. Lumps of soil are firmly pinched between the inner surface of the ribs 1 of the hollow cylinder installed along the helix and the outer surface of the hammers 6, as a result of which they are destroyed. The destruction efficiency of the soil lumps increases due to the additional impact of the edges of the holes 7 of the hammers on them 6. When the soil lumps of increased hardness get into the interior of the hollow cylinder, the hammer 6 deviates from its original position, turning with the leash 5 around axis 3 in the direction of rotation of the hollow cylinder. This happens until the gravity of the hammer 6 does not exceed the resistance of soil lumps to destruction. After the destruction of the soil lump, the hammer 6 is lowered to its original position, striking the soil lumps located in the lower part of the hollow cylinder, ensuring their high-quality grinding, including due to the holes made in hammers 6 staggered. Since the diameter of the holes 7 does not exceed the maximum size of the lumps allowed by the agrotechnical requirements, the particle sizes of the soil passing through the holes 7 of the hammers 6 will be an agronomically valuable fraction. When rolling over the surface of the soil, the soil cultivating roller compacts it and carries out surface loosening due to the ribs 1 of a certain shape and a certain distance between them, which are set taking into account the specific type of soil.

The presence of leashes mounted on the axis radially and pivotally, at the ends of which hammers in the form of a ring sector are installed, improves the quality of crumbling of lumps of soil that have fallen into the interior of the hollow cylinder due to the additional potential energy that arises when the hammers deviate back and up from their original position.

Installation at the ends of the leads of hammers in such a way that the distance between the outer surface of the hammers and the inner surface of the hollow cylinder increases in both directions from the center of the lower surface of the hammers to the center of their lower transverse edges from 0.25 ... 10 mm to 50 mm, as well as the presence on the cylindrical the surface of the hammers of staggered holes, the diameter of which does not exceed the maximum size of the lumps allowed by the agrotechnical requirements, makes it possible to effectively pinch and grind the soil lumps e the space between the outer surface of the hammer and the inner surface of the hollow cylinder, providing obtain agronomically valuable soil fractions, which leads to achievement of the claimed technical result. This eliminates jamming of hammers inside the hollow cylinder and allows hammers and ribs to level and mulch the soil surface, as well as provide the required density of its lower layers, improving the quality of soil rolling.

Claims (1)

A tillage roller, including a hollow cylinder with ribs evenly spaced around the circumference, mounted on a helical line, connecting vertical disks, characterized in that the hollow cylinder is equipped with an axis located along its axis of symmetry, inside the hollow cylinder, leashes are installed on the axis radially and articulated at the ends of the leashes hammers having the shape of a ring sector are installed, the outer radius of the hammers is less than the radius of the hollow cylinder, and the distance between the outer surface of the hammers and the inner the surface of the hollow cylinder increases in both directions from the center of the lower surface of the hammers to the center of their lower transverse edges from 0.25 ... 10 mm to 50 mm, the hammers are made with holes arranged in a checkerboard pattern, and the diameter of the holes does not exceed the maximum size of lumps allowed by agrotechnical requirements .

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