SU392902A1 - COMBINE GRAIN BREEDING - Google Patents

Description

The invention relates to grain harvesting combines intended for harvesting from an experimental plot in breeding, testing and primary seed production.

Combine harvesters are known, including the harvesting and threshing parts, straw walkers and sieve-cleaning with an aspiration air channel. However, in such combines, the air flow is unevenly blown over the sieves and this leads to clogging of the pile with straw particles, due to which the purity decreases and the losses of the zerp increase.

In order to increase the efficiency of cleaning and grain losses in the proposed Combine iodine sieve, removed from the airflow, a board was installed, the end of which was inserted into the aspirator dripping, while the lower part of the channel was filled with a vertical, and the upper part was inclined.

The drawing shows schematically combine combine harvesting.

Combine grain harvesting consists of the chassis, header and thresher. Reaper 1 has a reel, a cutting unit, auger and inclined conveyors for feeding the cut grain mass into the threshing machine. The threshing machine includes threshing machines 2,

2

rotary plate straw walker with 3 with cattle board 4 and cleaning with oscillating trembling sieve 5, page 6 and cattle board 7 with feed tray S, air column consisting of aspiration channel 9 with loading window 10 and fan //. Under the column is installed a grain hopper for grain 12. To clean the working bodies of the combine from the harvested crops

a pneumatic system 13, consisting of P1, and from a compressor, a receiver and re-slag, was used. When the harvester is working, the rotator 1, the reaper of the reaper, brings the grain mass to the cutting unit and places the cut stems on the auger, from which the inclined transnorter handles them into the threshing machine. The board under the deck of the threshing apparatus of the grain pile comes on the back of the board, and the straw pile is raised to the straw walker with a pick-up beater. Selected straw cattle grain heap nostunat pas cattle board, and the straw is removed beyond the limits of the combine. From the stitched and pitched planks, a pile of grain is fed to the beginning of the grape sieve. With

the movement of the heap of grain but the sieve is short straw (cattle) is brought out, and the grain from the sex through the sieve cells is fed to the chute board, unmixed to the feeding tray, which is uninterrupted

delivers a heap of grain in the loading window of the aspiration channel. The active arrival of the pile in the loading window will be facilitated by the aspiration principle of the column, creating a heap of heap through the window. Under the action of the ascending airflow created by the fan, light impurities are carried away with the air to the outside, and the grain is collected in the bunker.

Subject invention

Claims (2)

1. Combine grain harvesting, including harvesting and threshing parts, straw walker and sieve cleaning with an aspiration air duct, characterized in that, in order to improve the cleaning efficiency and reduce grain losses, a sloping board is installed under the sieve removed from the airflow zone, the end of which is inserted into the asnira canal. 2. A combine harvester according to claim 1, characterized in that, in order to improve the air flow evenness by increasing the length of the aspiration channel and reducing the channel dimensions in height, the lower part of the channel is made vertical and the upper part is inclined.