SU516372A1 - Threshing deck - Google Patents

Description

one

The invention relates to the field of agricultural engineering and is intended for use in combine harvesters.

Known deck threshing machine, holding the longitudinal ribs and transverse slats with removable slats installed in front of them with an elastic surface. The latter are attached by pressure plates that cover the main part of the elastic side surface of the slats and thereby reduce the effectiveness of the elastic coating of them, increasing the damage to the grain.

The purpose of the invention is to reduce damage to the grain by the fact that the pressure plates are made like stiffening ribs — as part of a flat ring with radial grooves under the slats and fixed on and along the stiffener ribs.

FIG. 1 shows the deck, side view; in fig. 2 - the same, top view; in fig. 3 pinch plate, side view.

The deck contains stiffeners 1 and transverse strips 2 with installed before

they are removable straps 3 with an elastic surface and fixed pressure plate 4. The latter is bolted 5 to the stiffener 1.

In so doing, the removable strips 3 are pressed against the transverse strips 2 by the teeth of the pressure plate 4 formed by radial grooves. In order to increase the reliability of pressing the removable strips 3, the pressure plates 4 are provided with bolts 6. The use of longitudinal pressure plates 4 ensures the fastening of the removable plates 3 with a slight overlap by the elastic lateral surface of the latter, which contributes to the reduction of grain damage.

In the process of operation, the mass is dragged by the threshing drum along the deck, striking the working edges of the slats 3, and threshed. A portion of the threshed grain is sifted through the deck grate. As the food mass moves along the deck at a certain speed, the grain passing through the deck is not oriented vertically downwards.

and at some angle to the direction of the transverse slats.

Claims (1)

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