SU1688796A1 - Plowshare - Google Patents

Description

one

(21) 4724434/15 (22) 07.27.89 (46) 07.11.91. Bul N: 41

(71) Poltava Agricultural Institute

(72) A.P. Kolomiets (53) 631.33.024 (088.8)

(56) USSR Author's Certificate Nfc 1273006, cl. A 01 C 7/20, 1985.

USSR author's certificate N; 1014498, cl. A 01 C 7/20 1981.

(54) BROADER

(57) The invention relates to agricultural machinery, in particular to embedding the working bodies of grain villages. The purpose of the invention is to increase the uniformity of seed embedding in depth. Dual disc coulter includes a housing 1 and flat disks 2 mounted at an angle to each other. Between drives 2 are set

the seed guide 3 and the ripper 5 with an acute angle of entry into the soil, the edge 6 of which is made along the curve. A stabilizer 8 is fixed to the bottom of the ripper 5 with its wings 9 raised up. When the coulter moves, the ripper 5 with the stabilizer 8 forms a groove in the soil / figurative form. The disks 2 push the soil apart and keep it from falling down into the groove. The sowing material along the guidewayZ enters the groove and is filled up with soil after the passage of discs 2. Soil reaction forces press discs 2 to the ripper 5 facets, preventing the ingress of plant residues between discs 2 and 5 cultivators 5 The vertical component of the soil reaction forces on the stabilizer 8 , contributes to the depth of the coulter and reduces the coulter oscillations in the longitudinal-vertical plane. 1 hp f-ly, 3 ill.

I /

WITH

Fm.1

FIELD OF THE INVENTION The invention relates to agricultural machine building, in particular, to embedding the working bodies of grain crops.

The purpose of the invention is to improve the uniformity of embedding SRMYAN depth.

FIG. 1 shows a double disc coulter, side view; Fig 2 - the same, front view; in fig. 3 shows section A-A in FIG. one.

The two-disk coulter comprises a housing 1, on which two flat disks 2 are mounted at an angle to each other. Between the disks there is a seed guide 3 for seeds and fertilizers. A tubular cable (not shown) is connected to the neck 4, which is made in the housing 1. In front of the coulter between the discs 2, a ripper 5 is installed, made in the form of a dihedral wedge having an acute angle of entry into the soil. Edge b of a dihedral wedge of the ripper 5 is made in a curve, for example, on a hypocycloid. Such a shape of the ripper improves the glide of plant residues and soil along the edge 6 of the ripper to the cutting edges of the discs 2. The guide 3 of seeds or fertilizers has the shape of a curved plate that guides the seed to the back side cultivator 6. The rear side of the cultivator 5 has the shape of a chute 7, which is made along a curve, for example, by the shape of the curve of the steepest slope of seed, along the brachistochrone, and is located in such a way that n is directed tangentially to the bottom of the furrow in the direction opposite to the movement of the cutter. In the lower part of the ripper, the coulter stabilizer 8 is installed in the form-shaped plate. Wing 9 stabilizer 8 lift up. Such shapes and the arrangement of the stabilizer allow to preliminarily form a sowing groove of a given shape with a compacted bottom. This reduces the amplitude of the opener oscillations in the longitudinal-vertical plane.

Dual disc coulter works as follows.

When the coulter moves, the ripper 5 with the stabilizer 8 forms a groove of x / -form shape in the soil. Flat disks 2, mounted at an angle to each other on housing 1, push the soil to the side and keep it from falling from the side walls of the furrow before laying the seeds or fertilizers. Seeds or fertilizer through the neck A are fed to the sender 3, located between the discs 2 in the rear part of the vomer. The flow of seeds or fertilizers moves along the curvilinear surface of the guide, at the exit from which they have a maximum speed. The ml of its rear ripper, 5 ml, hits, the seed or fertilizer flow changes direction and slides along the curved chute 7 to the bottom of the groove,

formed by the ripper 5 At the same time, the flow rate of seeds or fertilizers is reduced by changing the direction of movement, and the flow velocity vector is directed tangentially to the bottom of the groove in the direction

opposite to the movement of the crop

After the coulter passes, seeds or fertilizers are embedded in the soil, which is poured from the walls of the groove behind the discs. The wings 9 of the stabilizer 8 keep the vomer from vertical movements, since the soil layer above them acts as a damper. Plant residues and soil slid up the curvilinear edge 6 of the dihedral wedge ripper 5 until cutting

the edges of the discs that are in contact with each other at point A, are in line with the edge 6. When the coulter moves in the soil, plant residues are pressed against the cutting edge of the discs and the edge b of the dihedral wedge of the ripper 5 and are cut. This allows reducing the closure of the coulter with crop residues, reducing its resistance in the soil. The reaction forces of the soil acting on the lateral surfaces of the discs press them against the edges of the dihedral wedge ripper and thereby prevent the ingress of plant residues between the discs and the cultivator 5 and clogging of the coulter. In addition, the vertical component

resistance forces acting on the ripper 5 with an acute angle of entry into the soil, contributes to the depth of the coulter in the soil. The steady movement of the coulter in depth is ensured by reducing the amplitude of oscillations in the longitudinal-vertical plane, since the weight of the soil acting on the wing 9 does not allow the coulter to move upwards.

45

Claims (1)

Invention Formula 1 A coulter comprising a body, two decks mounted at an angle to each other on the body, a seed guide and a ripper in the form of a dihedral wedge located at the front between the disks at an acute angle to the horizontal plane, characterized by that. what. in order to improve the uniformity of seed placement in depth, the ripper is equipped with a stabilizer, made in the form of wings, fixed in its lower part 2 An opener differing in hem that krilch g (dpitmltora sent to BHPJIV i:; cri-, / f i to the grontontal FIG. 2 ll Fig.Z