RU2610705C1 - Harvester for stripping ears of grain crops - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: harvester for stripping of ears of grain crops comprises a bladed drum a stripping device, an auger, and a conveyor. The stripping device is designed as a series of tapered rollers forming the inlet channel to the stems of the harvested crops. On the surface of the tapered rollers the rows of stripping fingers are made. The tapered rollers are kinematically connected by gearwheels with a reciprocating toothed rack. The spacing between the adjacent rollers is within the thickness of the stem.

EFFECT: reliability of the technological process of harvesting grain crops and full stripping of ears.

3 cl, 2 dwg

Description

The invention relates to agricultural machinery, in particular, to the creation of grain harvesting equipment.

Known designs of headers for combing the ears on the vine are not widely used in the agricultural production system. Their common agrotechnical drawback is the undercutting of ears and grain losses, while the reapers are structurally complex, and their drive of the stripping device is energy-intensive. The use of harvesting-type reapers in an aggregate with modern design combines does not give the desired results for reducing the energy intensity of the crop harvesting process. The harvester equipment, designed for direct harvesting, is subject to change taking into account the physical and biological properties of the stripped ear mass with the new principle of separating grain from impurities and obtaining clean grain with less energy.

Based on the totality of common essential features, technical solution GB 2219919 A was adopted as a prototype on December 22, 1989.

The disadvantages of the known devices.

1. Underexposed spike.

2. The complexity of the design of the stripping device and the high energy intensity of its drive.

The objective of the invention is to improve the quality of the process of towing the ears of cereal crops.

The task is performed by a combing device made in the form of a series of cone-shaped rollers forming the input channel for the stalks of harvested crops, on the surface of which rows of stripping fingers are made, while the cone-shaped rollers are kinematically connected by means of gears with a tooth rack reciprocating, and the gap between adjacent rollers at the base of the cone of conical rollers is within the thickness of the stem.

In a particular embodiment, the rows of stripping fingers of a triangular shape are made on the surface of the conical rollers along the generatrix line of the cone of the conical rollers.

The technical result - the quality of the technological process of towing the spike is improved, and the design of the header is simplified.

The technical result is achieved through the use of cone-shaped rollers that perform a reciprocal - rotational movement along the circle sector, acting on the spike with rows of combing fingers alternately from top to bottom and bottom to top, providing a full spike. Moreover, the process of towing the spike is provided due to the design features of the drive mechanism that drives the brushing elements, which involves the use of a tooth rack that performs reciprocating motion.

At the same time, a full-fledged head of ears is achieved, the reliability of the technological process of harvesting grain crops is ensured, and the design of the header is simplified.

The noted positive aspects of the claimed object allow to obtain an economic effect and wide distribution.

In the drawings of FIG. 1 and FIG. 2 schematically shows a header for towing an ear of cereal crops.

The header contains a paddle drum 1, cone-shaped rollers 2, on the surface of which along the generatrix of the cone there are rows of stripping fingers 3 of a triangular shape, a screw 4, a conveyor 5, a drive mechanism for stripping elements consisting of a gear rack 6 and gears 7.

Reaper works as follows.

With the progressive movement of the harvesting unit, the blades of the blade drum 1 capture a strip of stems of harvested crops and direct them towards the stripping device. Getting into the space between the cone-shaped rollers 2, the ears touch the working surface of the stripping fingers 3. At the base of the cone-shaped rollers 2, the ears are stripped from two sides due to the action of the rows of stripping fingers 3 alternately from top to bottom and from bottom to top, when the adjacent cone-shaped rollers rotate 2.

The stability of the position of the ear relative to the surface of the conical rollers 2 is not violated. The carded mass by the screw 4 is fed to the conveyor 5, and then to the wiper drum of the combine.

Information sources

1. Patent GB 2219919 A 12/28/1989

2. Patent RU 2553636 CI A01D 41/08.

3. Patent RU 2437269 C 1 A01D 41/08.

4. A.c. SU 1192685 Al A01D 41/08.

Claims (3)

1. Reaper for harvesting an ear of grain crops, containing a blade drum, auger, conveyor, characterized in that the stripping device is made in the form of a series of cone-shaped rollers, forming an input channel for stalks of harvested crops, on the surface of which rows of stripping fingers are made, while cone-shaped rollers kinematically connected by means of gears with a tooth rack reciprocating, and the gap between adjacent rollers at the base of the cone of the conical rollers is in within the thickness of the stem. 2. Reaper for harvesting an ear of grain crops according to claim 1, characterized in that the rows of stripping fingers are made on the surface of the conical rollers along the generatrix line of the cone of the conical rollers. 3. Reaper for towing an ear of grain crops according to claim 1, characterized in that the combing fingers are made of a triangular shape.

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