RU2299551C1 - Apparatus for combing of grain from standing crop - Google Patents

Abstract

FIELD: agricultural engineering, in particular, harvesting of cereal crops.

SUBSTANCE: apparatus has header hitched onto inclined chamber of grain combine and comprising combing rotor, conveyor and screw, which are positioned within header housing. Movable combing fingers arranged in movable rows are positioned on rotor in parallel with rows of rigidly fixed main combing fingers. Movable combing fingers are equipped with straight rods having rollers at their ends. Main combing finger ends are bent at an angle of 30-35 deg for picking up beaten-down crop. Drum cheeks of combing rotor have protrusions provided at their both sides and adapted for shifting of straight rods with movable combing fingers. Stalks get into gap between main and movable fingers to be compacted to the thickness of one stalk of harvested crop from which grain is combed.

EFFECT: improved quality of combing cereal crops and reduced grain losses.

3 dwg

Description

The invention relates to the field of agricultural machinery, in particular to combing devices for harvesting wheat, rice, oats, etc.

A device "Field sweeper" with the working bodies of the stripping type (see magazine Mechanization and Electrification of agricultural production. 2005 No. 5, p. 15-18), including an energy tool, a stripping device fixed to the side, and a trailer. In this case, the stripping device is made in the form of two drums placed in the casing with stripping working bodies.

The disadvantages of this device are high losses, grain pollution, the need for further refinement in the hospital, which is very time-consuming.

The closest device is a combing header mounted on an inclined chamber of a combine harvester, comprising a housing, a conveyor, a screw, a rotor, on which rows of combing fingers are rigidly fixed (see G.G. Maslov, Sh.N. Bogus. Mechanized cultivation and harvesting technology agricultural crops, the city of Maykop: Republican Publishing Printing Association of Adygea. 1997, pp. 82-85).

However, the disadvantages of this device are high losses due to the strong self-shedding of grain and breaking off the ears during mechanical action on the stem, as well as losses due to the poor-quality process of combing, and also high energy costs for ensuring a high rotation speed of the header.

The technical solution to the problem is to reduce grain losses and reduce energy consumption.

The technical solution is achieved by the fact that in the device for combing grain on the root, including a header mounted on an inclined chamber of a combine harvester, comprising a housing, a conveyor, a screw, a rotor on which rows of combing fingers are rigidly fixed, according to the invention, the rotor has additionally movable rows of combing fingers installed parallel to the rows of the main stripping fingers, made at an angle of 30-35 °, while the movable rows of the stripping fingers are made in the form of straight rods having rollers at the ends and cheeks stripping rotor drums have arched protrusions on both sides.

The essence of the invention is illustrated by drawings; where in Fig.1 is a General view of the device, Fig.2 is a view A, Fig.3 is a view B, Fig.4 is a view B.

The device consists of a header 1, mounted on an inclined chamber 2 of the combine (not shown). The header 1 has a housing 3, which is equipped with an inclined conveyor 4, a screw 5, a stripping rotor 6 and a reel 7, mounted in front of it at the height of the stems of the harvested crop to the stripping rotor 6. The stripping rotor 6 is equipped with eight to ten rigidly fixed rows of stripping fingers 8, at the same time, fingers 8 at the end are bent at an angle of 30-35 °, ensuring the selection of a laden culture. The scrubbing rotor 6 has an additional row of scrubbing fingers 9 mounted parallel to the rows of the main scrubbing fingers 8. The scrubbing fingers 9 are located on the movable rods 10 fixed by the elements 11. The ends of each bar 10 have rollers 12, and the cheeks 13 of the scrubbing rotor drum 6 are equipped on both sides the arched protrusions 14. In the spaces between the fingers 8, the fingers 9 occupy the position either to the left or to the right. Additional stripping fingers are set in motion by sliding the rollers 12 of the rods 10 along the arcuate protrusions 14. As a result, a gap is formed between the fingers 8 and 9.

The device operates as follows. In the direction of the tractor reel 7 tilts the grain mass to the combing rotor 6, fingers 8 of which pick up the stems of the harvested crop. When the stripping rotor 6 is rotated, the roller 12 runs onto the protrusions 14 of the cheeks 13 located on both sides of the drum and carries out the shift of the rods 10, as a result, a gap forms between the fingers 8 and 9, which includes the stems of the harvested crop. In the future, the stems are condensed to the thickness of one stalk of the harvested crop and, without cutting the ears, they are towed.

Claims (1)

A device for combing grain on the root, including a header mounted on an inclined chamber of a combine harvester, comprising a housing, a conveyor, a screw, a rotor, on which rows of combing fingers are rigidly fixed, characterized in that the rotor has additionally movable rows of combing fingers mounted parallel to the rows of main the combing fingers made at an angle of 30-35 °, while the movable rows of the combing fingers are made in the form of straight rods having rollers at the ends, and the cheeks of the drum of the combing rotor have two thoron arched protrusions.

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