SU1014506A1 - Device for thrashing standing crops - Google Patents

Abstract

1. DEVICE FOR THRESHOLDING OF PLANTS ON THE ROOT, including rotating threshing chambers, each of which is made in the form of large bases of conical rings interconnected with a gap and facing one another by radial blades, and with a shaft through an annular partition having elements and devices for closing the gaps between the rings in the threshing zone, characterized in that, in order to reduce losses of the threshed grain by improving the removal of grain from the threshing zone, each The threshing chamber is provided with a tongue, which is located in the grain unloading zone, and the devices are made in the form of endless belts that envelop conical rings and cheeks. 2. A device according to claim 1, characterized in that each threshing chamber is provided with an additional pulley for bending the belt. (L SP o and Ny; 9 NV 4NN4 SNvvJ9CvviilNX

Description

The invention relates to an agricultural technique and is intended for threshing standing crops of agricultural crops.

A device for threshing agricultural crops at the root is known, comprising a drum comprising a drive shaft and combing elements made in the form of triangular-shaped blades. The group of blades, located around the circumference of the drive shaft, is swept over the tops by rings that exclude the insertion of the tops of the combing elements into the grain mass and act as active dividers 1.

The disadvantage of this device is the loss of yield of free grain, due to the fact that the zones where the tops of the plants belong to are open, and a part of the grinded grains falls to the surface of the ground.

A device is known for threshing plants at the root, including rotating threshing chambers, each of which is made in the form of a large base of conical rings interconnected by radial blades and with a shaft by means of an annular partition having threshing elements and devices for closing the gaps between the rings in the threshing zone 2.

However, in the known device, when the shock protrusions of the semicircular shape are applied to the plants located between the disks, spraying of the threshed grains occurs, some of which do not fall into the trays and fly out of the device, resulting in loss.

The purpose of the invention is to reduce the losses of threshed grain by improving the removal of grain from the threshing zone.

This goal is achieved by the fact that each threshing chamber is equipped with a pulley, which is located in the zone of unloading of grain, and the devices are made in the form of endless belts, enveloping conical rings, and shkivy.

In addition, each threshing chamber is provided with an additional pulley for bending the belt.

FIG. 1 shows schematically a threshing unit of a harvesting machine, view in the longitudinal plane; in fig. 2 - the same plan view; in fig. 3 is a section A-A in FIG. one.

The device includes a threshing unit consisting of a disk drum 1, partially located in the zone 2 of the unloading of grain. The disk drum 1 includes a shaft 3 on which conical rings 4 are mounted with a central inlet 5 and peripheral outlet 6 windows. Inside the rings 4, outside the entrance window 5, there is a threshing chamber 7 in which the working elements 8 are located that produce the tow tops of the stems. Inside the conical rings 4 there are radial vanes 9. The rings 4 in the zone of interaction with the plants of the threshed culture peripherally are covered by an endless flexible belt 10 partially covering the exit window 6. The threshing chamber 7 is divided by an annular partition into two parts, each of which has one entrance window 5, and the output window 6 they have in common. On the annular partition 11 and the inner surface of the conical ring 4, working thresher elements 8 are fixed. Between the rings 4 there are 3 washers 12 mounted on the shaft,

5 separating entrance windows of 5 contiguous rings 4 and separators. The inlet openings 5 are covered by shields 13 of the device enclosing the space between the rings 4 in order to create a peculiar suction nozzle 14.

0 drum 1 (below the point of overlapping of the exit window 6 by an endless flexible belt 10) is a sloped board 15, covering the grain unloading zone 2 from below. The edge of the cattle board 15 is edged with edges 16. In the unloading zone of the grain, there is a tongue, which is covered by the belt 10. An additional pulley serves to change the plane of rotation of the belt.

Threshing of standing plants is proceeded as follows.

The harvesting machine, moving into a bakery with a drum 1 rotating in an arrow, produces the division and grouping of the stems into longitudinal rows with their subsequent introduction into space (nozzle 14

between the conical rings.

When the rings 4 rotate, the radial blades 9 and the working elements 8 create an air flow, which through the nozzle 14 and the inlet window 5 enters the conical rings 4 and is ejected through the TyjQ opening part of the outlet window 6. Together with the air flow inside the rings 4 (threshing chamber 7) the tops of the stems are tightened, which, in contact with the working elements 8, are threshed, and. product

 the threshing is thrown through the exit window 6, into the unloading zone 2 of the grain, and then into the collection container.

In order to ensure separation of the flow of the stems located between the rings 4 into two parts and to ensure the greatest effect of pulling the tops of the stems into the threshing chamber 7 formed by the rings 4, dividers in the form of washers 12 are located between the rings .

The presence of a closed (in the direction of movement) threshing chamber located inside the hollow conical rings reduces the yield loss by free grain.

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Claims (2)

1. DEVICE FOR THRASING PLANTS TO THE ROOT, including rotating threshing chambers, each of which is made in the form of conical rings located with a gap and facing one another with large bases, interconnected by radial blades, and with a shaft - by means of an annular partition having threshing elements and devices for closing the gaps between the rings in the threshing zone, characterized in that, in order to reduce losses of threshed grain by improving the removal of grain from the threshing zone, each pier threshing chamber is provided with a pulley, which is located in the discharge area of grain and adaptations are in the form of endless belts, envelopes conical rings and pulleys. 2. The device according to π. 1, characterized in that each threshing chamber is equipped with an additional pulley for bending the belt. Figure 1