RU2298309C2 - Shank - Google Patents

Abstract

FIELD: agricultural engineering, in particular, two-disk shanks for grain drills.

SUBSTANCE: shank has carrier and T-shaped body. Rotating disks are fixed on T-shaped body by means of brackets. Disks are positioned at an angle to one another and are equipped with seed guides. Longitudinal part of body is fixed on carrier. Bracket with disks and seed guide is attached to transverse part of body for movement thereon. Adjusting planks are mounted on brackets, in parallel therewith, so as to change their position relative to brackets in vertical plane and fix them in certain position. Adjusting pins are fixed at ends of planks, beyond disks, above their center, perpendicular to advancement direction. Adjusting planks may vary their position in horizontal plane relative to adjusting pin.

EFFECT: improved quality of seed embedding into soil and wider range of usage.

2 dwg

Description

The invention relates to agricultural machinery, in particular to a double-disc coulters for grain seeders.

A known opener [1], including a leash, a housing and rotating disks fixed in it by means of an arm, are located at an angle to each other and are equipped with seed guides. The case is made in a T-shape, the longitudinal part of which is mounted on a leash, and the brackets with discs and seed guides are mounted on the transverse part with the possibility of movement along the latter.

However, the known coulter has disadvantages, which include the low quality of seed placement in the soil and the limited scope of its application. This is due to the fact that the design of this coulter does not allow changing the depth of seed placement in the soil, as well as the angles of inclination and convergence of the discs; therefore, it is impossible to change the furrow profile depending on the type of seed and agricultural requirements.

The purpose of the invention is improving the quality of seed placement in the soil and expanding the scope of the device.

This goal is achieved by the fact that on the brackets, parallel to them, with the possibility of changing the position relative to the brackets in the vertical plane, set the adjustment bars. At the ends of the adjustment bars outside the discs and above their center, an adjustment pin is installed perpendicular to the direction of movement. Adjustment strips have the ability to change their position in the horizontal plane relative to the adjustment stud.

Figure 1 shows a General view of the opener, figure 2 is a section along aa.

The coulter contains a leash 1, a T-shaped case 2, on which, through the brackets 3, rotating disks 4 are mounted, which are angled to each other and provided with a seed guide 5. The longitudinal part of the body 2 is fixed on the lead 1, and the bracket 3 with the disks 4 and the seed guide 5 is mounted on the transverse part of the housing 2 with the possibility of movement along the latter. On the brackets 3, parallel to them, with the possibility of changing the position relative to the brackets 3 in the vertical plane and fixing the positions with the bolts 6 and the slots 7 made in the brackets 3, adjustment bars 8 are installed. At the ends of the adjustment bars 8 outside the discs 4 and above their center an adjustment pin 9 is installed perpendicular to the direction of movement. The adjustment bars 8 have the ability to change their position in the horizontal plane relative to the adjustment pin 9, which is achieved by redstvom nuts 10 screwed onto the threaded ends of the adjusting pins 9.

The coulter works as follows.

Previously, by changing the position of the adjustment bars 8 relative to the brackets 3 in the vertical plane, the coulter is adjusted to the required seed placement depth. The position of the adjustment bars 8 relative to the brackets 3 is fixed with bolts 6 and the slots made in the brackets 3. To change the seed placement depth H (the junction of the discs), it is necessary to change the position of the adjustment bars 7 (angle α). Then set the required angle of convergence of the disks γ, for which the distance between the adjustment strips 8 is changed using the nuts 10, screwed onto the threaded ends of the adjustment stud 9. After this, the sowing is started in compliance with the specified agrotechnical requirements.

The use of the coulter of the proposed design allows to improve the quality of seed placement in the soil and expand the scope of the device, since the depth of seed placement in the soil, as well as the angles of inclination and convergence of the discs are regulated depending on the type of seed and agricultural requirements.

The source of information

1. Opener. - Copyright certificate SU No. 1531890. Publ. 12/30/89, Bull. No. 48.

Claims (1)

A coulter containing a leash, a T-shaped housing on which rotating discs are mounted at an angle to each other by means of brackets and provided with a seed guide, the longitudinal part of the housing mounted on a leash, and the bracket with discs and seed guide mounted on the transverse part of the housing with moving along the latter, characterized in that on the brackets, parallel to them, with the possibility of changing the position relative to the brackets in the vertical plane and fixing the positions, p adjustment bars, and at the ends of the adjustment bars outside the discs and above their center, an adjustment pin is installed perpendicular to the direction of movement, while the adjustment bars are configured to change their position in the horizontal plane relative to the adjustment pin.

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