SU959669A1 - Apparatus for thrashing standing agricultural crops - Google Patents

Description

(54) DEVICE FOR THE THRESHOLD AGRICULTURAL

CULTURE. ON KORN

one

FIELD OF THE INVENTION The invention relates to agricultural machinery, namely, devices for harvesting crops at the root.

A device for harvesting agricultural crops at the root is known; it is made in the form of a cylindrical drum with combing fingers, forming combs, and a pneumatic conveying channel located above them with a casing 1., 0

The disadvantage of this device is that, near the rotating combing drum, combs create air turbulence, which weakens the suction air flow and retracts the tops of plants from the stripping area, worsening the growth of dead and detached plants, thus causing an increase in grain losses.

The closest known solution is a device for threshing agricultural crops at the root, which contains inclined combing conveyors with teeth fixed on chains at an angle to their contour and drive 2.

The device can remove the stems of a large Russian, as well as wilted and laid. However, it creates large grain losses. This is because when the fingers enter the stem at the time of bending the lower sprocket with a chain, the teeth strike the ears with the whole plane and select the grain from them.

The aim of the invention is to reduce grain losses during the harvesting of brown, wilted and laid plants.

This goal is achieved by the fact that each stripping conveyor is provided with an additional asterisk installed below the main ones, with the branches of the chains between the lower and additional asterisks of the conveyors being inclined, and the teeth on these branches are parallel to the floor surface.

In addition, in order to regulate the floor of Eugenie, the branches of the chains between the lower and additional asterisks are mounted on the double-arm drive levers.

FIG. 1 shows the device in the position for cleaning of light brown, wilted and laid plants, side view; in fig. 2 -

the same, in the position for cleaning the right plants.

The device contains endless chains 1 on which combs 2, consisting of flat combing teeth, are fastened. A flexible tape 3 is attached to the chains, the purpose of which is to transport the combed heap and prevent it from spilling from the dies to the surface of the floor. The chains are moved by three stars 4-6. The bottom 5 and additional 6 sprockets are mounted in the movable two shoulders lever 7, which is hingedly attached to the frame 8. The position of the lower and additional sprockets is changed by a hydraulic cylinder 9 fixed to the frame 8 and the movable two shoulders 7.

During the operation of the stripper, during the cleaning of brown, drooping and laid down plants, an additional asterisk 6 is placed in a position in which the tooth moves parallel to the floor surface. This eliminates the upholstery of the ears, since the combs enter the stem with a minimal force effect, raise the plants alternately arranged in different rus for their length, after which the process of combing occurs. The introduction of combs in the stem, when rounding off additional stars, is carried out into the already combed stubble.

When harvesting short-growing direct plants, it is necessary to position the stripping area as close as possible to the soil surface. This is achieved by moving through the hydraulic cylinder 9. movable two shoulders of the lever 7 in such a position that the lower sprocket 5 was located to the surface of the floor closer than the additional sprocket 6.

Thus, the use of the proposed device provides minimal impact of combing dies on plants when they are inserted into the stem, and it also allows you to adjust the location of the dies and the comb area depending on the state of the stem, which reduces grain losses during cleaning by combing the root of the fair-haired, wilted and lodged agricultural crops.

Claims (2)

1. A device for threshing agricultural crops at the root, containing inclined stripping chain conveyors with teeth fixed at chains at an angle to their contour and driven, characterized in that, in order to reduce grain losses during the harvesting of brown, drooping and laid plants, Each stripping conveyor is equipped with an additional asterisk installed below the main ones, with the branches of the chains between the lower and additional asterisks of the conveyors inclined, and the teeth on these branches are parallel to the floor surface. 2. The device according to claim 1, characterized in that, in order to adjust the position of the branch of the chains between the lower and additional asterisks, the latter are mounted at the ends of the two shoulders driving levers. Sources of information taken into account in the examination 1. USSR author's certificate number 600981, cl. A W D 41/08, 1972. 2. USSR author's certificate No. 538692, cl. A 01 F 11/00, 1971 (prototype). FIG. I