RU68839U1 - HARROW DISC - Google Patents

Abstract

The utility model relates to the field of agricultural engineering, mainly to tillage tools with passive rotary disc working bodies, and can be used in agriculture for post-harvest soil cultivation.

The disc harrow contains a frame consisting of longitudinal 1 and transverse 2 beams interconnected, C-shaped racks 3 made of sheet steel spring and fixed with their upper ends 7 on the transverse beams 2, discs 4 mounted on the lower ends of the 9 C-shaped racks 3 with the possibility of rotation. The upper end 7 of each C-shaped rack 3 is connected to the transverse beam 2 and contains a leash 12, which, in turn, is pivotally connected to the adjusting rod 11, mounted with the possibility of movement and fixation along the transverse beam 2. 1 n.p. f-ly, 4 ill.

Description

The utility model relates to the field of agricultural engineering, mainly to tillage tools with passive rotary disc working bodies, and can be used in agriculture for post-harvest soil cultivation.

A disc harrow adopted by the author for a prototype is known, comprising a frame consisting of longitudinal and transverse beams interconnected, C-shaped racks made of sheet steel spring and fixed with their upper ends on the transverse beams, discs mounted on the lower ends of the C-shaped racks with the possibility of rotation (US Patent No. 6158523, nats. C. 172/574, 2000).

The disadvantage of this device is that the scope of this agricultural tool is extremely narrow, since it is designed for a specific agricultural background, namely the crop residues of thick-stalked row crops (corn, sunflower), so the angle of attack of the disk is constant and not regulated.

Since the fields differ in soil moisture, the presence of crop residues, and the number of sprouted green weeds, each field needs its own angle of attack of the discs, i.e. the angle of the disk relative to the direction of movement of the harrow.

The objective of the utility model is to create a device with the ability to adjust the angle of attack of disks during the transition from one field to another.

The technical result from this utility model is to increase the versatility of the harrow with the aim of using it both for grinding and embedding the crop residues of thick stalked row crops in the soil, and for processing fields containing crop

the remains of cereals with a large number of sprouted weeds.

The specified technical result is achieved by the fact that in the disk harrow, containing a frame consisting of longitudinal and transverse beams interconnected, C-shaped racks made of sheet steel spring and fastened with their upper ends to the transverse beams, discs mounted at the lower ends of C -shaped racks with the possibility of rotation, the upper end of each C-shaped racks is connected to the transverse beam and contains a leash, which, in turn, is pivotally connected to the adjusting rod installed with the possibility of ne displacement and fixation along the transverse beam.

The utility model is illustrated by drawings, on which:

Figure 1 - Top view of the inventive harrow.

Figure 2 - The same as in Figure 1, side view.

Figure 3 is a side view of a C-shaped rack with a disk.

Figure 4 - The fact that Figure 3 is a front view.

Combined disk harrow (Figs. 1 and 2) contains a frame consisting of longitudinal 1 and transverse 2 beams interconnected, C-shaped posts 3 and discs 4 mounted on them. The harrow can be equipped with transport wheels 5 and a towing device 6.

C-shaped rack 3 (Fig.3, 4) is made of spring steel. With its upper end 7, it is attached to the transverse beam 2 using a hinge 8. At the lower end 9 of the C-shaped rack 3, a disk 4 is mounted through the bearing 10 with the possibility of rotation around its axis.

The harrow may contain several rows of C-shaped racks 3 with disks (Figure 1).

To change the angle of attack of the disc 4, the harrow (FIG. 1) contains an adjusting rod 11, which, using a lead 12, is pivotally connected to the upper end 7 of the C-shaped strut 3.

The device operates as follows.

When moving from one field to another, depending on the required depth of tillage and the condition of the agricultural background (the presence of plant debris, moisture and soil density), the adjusting rod 11 is, for example, moved along the transverse beam 2. Using, for example, a screw adjusting device 13 11 through the lead 12 is transmitted to the upper end 7 of the C-shaped rack 3, and from it to the axis of the disk 4, and thus the disk 4 is rotated to the desired angle.

In the case of a collision of a disk with an obstacle (for example, a stone), the disk 4 deviates upward or to the side due to the spring properties of the C-shaped rack 3, which prevents damage to the disk 4 and breakage of the rack 3, and then returns to its original position.

The utility model can be widely used in agricultural engineering in the production and operation of implements for post-harvest soil cultivation.

Claims (1)

Disc harrow, containing a frame consisting of interconnected longitudinal and transverse beams, C-shaped racks made of sheet steel spring and fixed with their upper ends on the transverse beams, disks mounted on the lower ends of the C-shaped racks with the possibility of rotation, characterized the fact that the upper end of each C-shaped rack is connected to the transverse beam and contains a leash, which, in turn, is pivotally connected to the adjusting rod installed with the ability to move and fix along one beam.