RU2380883C1 - Inclined chamber of combine harvester - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: inclined chamber comprises body, receiving beater, thrashing drum, straw combs, stripper beater, separating grids, device for discharge of extracted grain pile in the form of scraper belt. Thrashing drum is equipped with working elements, having teeth. Streamlined plank that partially covers teeth by height is installed at one working element with teeth. Teeth of working elements are arranged on drum along helical lines of opposite direction or in staggered order so that neighboring traces of teeth partially cover each other.

EFFECT: inclined chamber is simple in design and has high technological reliability.

2 dwg

Description

The invention relates to agricultural machinery, in particular to the inclined chambers of combine harvesters.

Known inclined chamber of a combine harvester according to.with. No. 235451, A01D 41/12, including a trellised bottom, a device for threshing and transporting bread mass, made in the form of a series of palmate beaters with gratings installed under them, preventing the winding of the mass on the beaters, and a device for removing grain, made in the form of a series of parallel spaced augers.

The impact of palmate beaters on the grain mass leads to its partial threshing, however, when harvesting difficultly threshed crops, the device is not effective enough.

Closest to the claimed device is the inclined chamber of the combine harvester according to.with. No. 357921, А01D 41/12, having a trellised bottom, a conveyor for moving along the bottom of the bread mass, made of a hammer threshing drum, the space between the rows of hammers of which is covered by plates, and palm straws, as well as a device for removing the selected grain. Rigid ridges are mounted on overlapping plates.

A disadvantage of the known device is the complexity of the design due to the articulation of the hammers and the lack of technological reliability when harvesting wet crops due to the possibility of clogging the inclined chamber when deflecting the articulated hammers.

The task of the invention is to simplify the design and increase the technological reliability of the inclined camera.

This problem is solved due to the fact that in the inclined chamber of the combine harvester containing a receiving beater, a threshing drum with working elements, straw bales, a separating grate and a device for removing the selected grain heap, only a streamlined bar is installed on only one working element equipped with teeth.

New essential feature.

On one working element equipped with teeth, a streamlined bar is installed, overlapping it in length.

The specified new essential feature, together with the known ones, allows to obtain a technical result in all cases to which the requested amount of legal protection applies.

The technical result - simplifying the design and improving the technological reliability of the inclined chamber - is achieved due to the fact that a threshing device is used with rigid fastening of the tooth working elements and the installation of a streamlined lath on one of them, covering it in length, providing gentle threshing with sufficient efficiency not inferior to the operating efficiency of threshing machines used in the inclined chamber and avoiding clogging of the inclined chamber.

The proposed device is illustrated by drawings:

figure 1 is a schematic representation of a longitudinal section of an inclined chamber;

figure 2 - view a in figure 1.

The inclined chamber contains a housing 1, a receiving beater 2, a threshing drum 3, straw bales 4 and 5, a breaking beater 6, separating grids 7 and 8, a device for removing the selected grain heap 9 in the form of a scraper conveyor. The threshing drum 3 is equipped with working elements 10 with teeth 11. A streamlined bar 12 is installed on one of the working elements 10. The bar 12 partially overlaps the teeth 11 of the working elements 10 in height so that the working part 13 remains shorter than the teeth 11 of the remaining rows. The teeth 11 can be located on the drum along helical lines or in a checkerboard pattern. With a helical arrangement, half of the teeth is located on the left helix, and the second half is on the right. In all cases, the teeth are placed so that their adjacent tracks partially overlap each other, and the tops of all the teeth lie on one cylindrical surface. The gap between the ends of the teeth 11 and the separating grill 7 is fixed constant or decreasing from entrance to exit. The minimum clearance should be slightly larger than the maximum grain cross-sectional size.

The working process in an inclined chamber proceeds as follows. The grain mass cut off by the header cutting apparatus is fed to the window of the inclined chamber, where it is captured by the receiving beater 2 and fed to the drum 3. Under the influence of the impacts of the teeth 11, 13 and strap 12, the grain mass is partially threshed in a gentle mode and the grain and small impurities are separated through the holes of the grate 7. The heap coming out from under the drum 3 is transported along the grate 8 to the pick-up bit 6 with straw straws 4 and 5, which are additionally separated through the holes of the grate 8, ground grain. The pre-threshed heap with a jackhammer 6 is fed into the threshing machine of the combine threshing machine, and the grain allocated in the inclined chamber is fed to the combine shaking plate.

Claims (1)

A tilting chamber of a combine harvester containing a receiving beater, a threshing drum with working elements, straw bales, a separating grate and a device for removing the selected grain heap, characterized in that a streamlined bar is installed on only one working element equipped with teeth.

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