SU727177A1 - Axial thrashing apparatus for grain combine harvester - Google Patents

Description

I

The invention relates to the field of agricultural engineering, in particular, to axial threshing devices of combine harvesters.

An axial threshing device is known, which includes twin rotary knobs, and cone drums with beams and covering their deck 1.

The purpose of the invention is to increase throughput, reduce losses and injure grain.

This goal is ensured by the fact that the billes are made of links formed from plates, at least two additional plates are attached to the free end, and the free ends of the latter are in turn provided with the mentioned links.

FIG. 1 shows an axial threshing device of a combine harvester; in fig. 2 - section A-A of FIG. one; in fig. 3 - section bb FIG. one; in fig. 4 - scan threshing drum; in fig. 5 threshing drum, perspective view; in fig. 6 - working part beat.

The axial threshing device of a combine harvester consists of paired rotating cone drums 1 with billes 2, decks 3. Bili 2 are made of links formed from plates, at least two additional plates are attached to the free end, and the latter are attached to the free ends of the latter. chick links.

In order to improve the threshing process, the separation of grain and the axial movement of the grain mass, the working side beat 2 (Fig. 5) is stepped, so that the grain mass is affected in the transverse direction (face 4) and in the longitudinal direction (face 5). It is impossible to create a pulsating flow with an increased spatial lattice while simultaneously increasing the reduced length of the blade. As can be seen from the drum sweep (Fig. 4), there are two zones FI and P2 between the strips 2, which provide the pulsating effect of the threshing device, and the position of the strikes makes it possible to increase the intensity of wiping grain from the ears as the plant mass passes along the drum cone.

The device operates as follows. When the grain mass enters the threshing device, it is exposed to the blows 2 and deck 3, this results in the release of grain that passes through the deck grate to the subsequent transporting working elements of the combine, and the rest goes to the separator.

The proposed device, in comparison with the known ones, makes it possible to produce more complete threshing of grain by increasing the contact area of the beats and the grain mass during threshing, as with the same width of the beats their length increases; in addition, the throughput of the thresher is increased by increasing the threshing area and it is possible to set the threshing machines for a softer mode of operation, which will reduce the damage to the grain.

Claims (1)

Invention Formula An axial threshing device for a combine harvester, including paired rotating cone drums with billes and covering their deck, characterized in that, in order to increase capacity, reduce losses and injure grain, bils are made of links formed from plates, to the free end of which are attached, at least two additional plates, the free ends of the latter, in turn, are equipped with the mentioned links. Sources of information taken into account in the examination of I. USSR author's certificate JVb 460847, cl. And 01 F 7/06, i973 (prototype). Aa FIG.