SU420282A1 - MILK GRAIN COMBINE - Google Patents

Description

one

The invention relates to agricultural machinery.

A well-known thresher of a combine harvester includes a feed conveyor with a rotary rotary for a bread mass device located below and parallel to the axis of the drum of the drum, which is torn around the deck, the feed part of which is located below the threshing drum.

However, when using a known thresher, difficulties arise when the threshed grain is removed from the threshing zone, due to the rotor position of the rotator and the vertical positioning of the deck part of the deck, which is displaced forward relative to the barrel drum.

The grain threshed on the deck of the well-known grind, before cutting through the deck, is subjected to numerous impacts from the drum's scourges, which increases its damage.

Moreover, a part of a non-passing-through grate of the lead-in part of the grain deck is carried away by the drum whips and moves to the upper part of the deck. However, due to the fact that the possibility of extracting grain through the upper part of the deck is practically very limited, a significant part of it goes beyond the thresher and is irretrievably lost.

The aim of the invention is to improve the threshing and separating properties of the thresher, as well as to reduce the degree of crushing and injury to the grain during the threshing process by improving the conditions for removing the threshed grain from the threshing zone.

This is achieved by displacing the rotor of the rotator relative to the barrel drum back towards the output part

threshers

Such an arrangement of the rotor of the rotator relative to the barrel drum allows positioning the lead-in part of the deck below the barrel drum and, if not horizontally, then with a small angle to the horizon.

The drawing shows a thresher in a longitudinal section.

It contains a mobile drum 1 with a lattice deck 2 wrapping around its arc.

and feeding conveyor 3 with rotary rotary for grain mass device 4, as well as device 5 for removal of grain allocated through the deck for cleaning 6. Feed conveyor 3 of scraper type

installed below the blade drum 1 and with a slope towards the header platform (not shown). The device 4, replaced with a rotary for bread mass, made in the form of a blade rotor 7, is offset backward towards the outlet part of the thresher relative to the blade drum 1 so that the vertical axis 8 of the symmetry of the rotor is approximately tangent to the generator of the blade drum.

Deca 2 has the usual design and execution; not three-section. The first two sections 9 and 10 of it embrace the bilny drum in the front as the combine moves. In this case, the lower part Y of section 9, forming the feed part of the bowl, extends in the direction towards the blade rotor 7 and, generally, is located below the bottom drum 1.

A third section 12 of the deck of the first two is installed on the other side of the drum 1, adjacent to the screw 13, designed to supply undermilled residue from cleaning 6 to the second threshing.

Behind the blade rotor 7 of the rotary for the bread mass of device 4, an arcuate shield 14 is placed around the rotor, passing down into the pallet 15 of the feed conveyor 3. The pallet portion 16 located in the area between the upper shaft 17 of the feed conveyor 3 and the rotor 7 is designed as a removable tray, below which is a pallet 18 for collecting stones.

The upper end of the arcuate shield 14 is adjacent to another arcuate shield 19, which envelops the back drum 1 at the back. Its upper edge 20 is bent back and down from the drum at an angle to the trajectory of its rotation and forms a cutter that prevents the mass from being fed back.

A similar cutter 21 is mounted in front of the blade rotor 7.

A transitional shield 22 can be installed between the cut-off 21 and the lead-in part of deck 2 of the deck 2. The cavity 23 located under the shield can be used to collect stones when the shield is removed. The transition shield 22, the shut-off device 21 and the upper part of the shield 14, bounded on the sides by the panels of the thresher housing (not shown), form a loading window.

The device 5 for removal of the grain allocated through deck 2 to the cleaning 6 includes two transport systems.

One of them contains screws 24 and 25 connected between the sabers (the line between them is not shown in the drawing) and serves to divert to clean 6 grain allocated in the lead-in part of deck 11 of the other 2. Another one containing screws 26 and 27 serves to divert the selected grain on the rest of deck 2.

The screws 24 and 26 are located in the respective chutes 28 29, which are elements of the thresher housing.

To provide access to the screws 24, 26 and deck 2, the gutters 28, 29 can be equipped with windows with removable covers.

The unloading augers 25, 27 of the conveying systems are located above the screen 30 of the screen 31, and the screw 25 is located in front of the screw 27 in the direction of travel of the machine.

The discharge pin 25 may be installed above the bottom cleaning sieve or directly in the hopper 32 for collecting grain (variations are not shown in the drawing).

In the course of operation of the combine harvester, the Miaccbi bread stream with the upper arrangement of ears of the feeding conveyor Zpo to the pallet 15 moves to the blade rotor 7, which, capturing the grain mass with its blades, moves it along the arc (the shield 14 to the thresher loading window).

Due to the lower arrangement of the lead-in part 11 of deck 2 relative to the threshing drum 1, the main part of the most valuable grain threshed at the lead-in part is immediately released through the deck and is taken to cleaning 6 or, if the unloading auger 25 is installed in the hopper 32, directly into

this bunker.

. The sequential arrangement of the unloading jaws 25, 27 above the board 30 provides layer-by-layer stacking of more clogged grain, descending from the end part of deck 2,

for cleaner grain from under the lead-in of deck 11. This facilitates cleaning work 6, as it eliminates the need for redistribution of grain heap particles on this cleaning.

| When working on the floor covered with stones, the tray and transitional Shield 22 are removed.

The implementation of the Thresher of a combine harvester according to the invention stabilizes the threshing process and speeds up the release of grain through the deck of the threshed grain at the lead-in part, which helps reduce the degree of injury to the grain.

Subject invention

A threshing combine harvester incorporating a feed conveyor with a rotary device for lowering the grain weight, located below and in parallel

The axis of the drum of the drum, which is enclosed by the deck, the lead-in part of which is located below the threshing drum, characterized in that, in order to increase its threshing-separating properties and reduce crushing and injuries of grain by improving the collection and removal of grinded grain from the threshing zone, the rotator rotor is offset from the entrance deck part towards the thresher exit part. / 5 5/7 / -