SU401312A1 - HAMMER FOR THRESHOLD AGRICULTURAL - Google Patents

Description

one

The invention relates to agriculture, in particular to machines for threshing agricultural crops.

Known threshers are known, including two successively located threshing drums and lattice concave that enclose them, equipped with the first one at the outlet and the second at the entrance with adjustable guide plates, the main and additional pneumo-reschatny cleanings.

A disadvantage of the known threshing machines is that they do not provide for the isolation of the biologically valuable zerv contained in the pile from under the first threshing drum.

In the proposed threshing machine, in order to isolate a biologically valuable grain, the jest of separation of the heap, separated by the first threshing drum, is installed under the first concave and its front part: , installed with a slope in the side of the additional cleaning, while there is a separating plate between the longitudinal double slope and longitudinal peaks.

FIG. 1 schematically shows the proposed thresher for threshing agricultural crops, side view, cut; in fig. 2 shows a section along A- / 1 in FIG. one; in fig. 3 is a section along BB in FIG. 2

And the cart contains two successively located threshing drums 7, 2 and lattice concave 3, 4, main 5 and additional 6 pneumoscet cleanings covering them. Under the first concave, a double-sided dividing shield 7 is installed in its front part. At the exit, the first concave is equipped with an adjustable guide plate 8, and the second concave is with the guide plate 9 at the entrance, the reverse side of the plate 8.

Under the front slope of the transverse dvukhskatny dividing shield on the surface of the lath board 10 there is a longitudinal dvukhskatny shield //, and under the rear slope there are guide longitudinal peaks 12 installed with a slope in the direction of additional cleaning. A separating plate 13 is located between the longitudinal double-sided shield and the longitudinal peaks. Under additional and main cleanings are the grain collectors 14, 15, of which the screws 16, 17 and the elevators 18, 19 are fed into the bunkers 20, 21 of the bread mass.

Grain and the mass falls into the combine thresher, where it is taken in by the receiving beater, which shoots the mass to the threshing apparatus. The grain is threshed to the receiving beater and the receiving beater is extracted through the grid brushes. The rest of the mass, the passage between the first drum and the barn, is partially threshed, and part of the extracted grain spills through the bar concave, and the second part, together with the straw, goes to the separating grid, where it is separated.

Grain allocated to the second drum, as shown by the results of research, has the greatest absolute weight and is the most valuable, and the grain selected under the receiving beater and through the first concave zone (up to flap 7) contains a large number of damaged seeds.

A heap of heap with the remaining unmilled grain is fed to the second drum, and the passage between the drum and the drum is rewarded. The second drum threshes mainly defective grain, which is not advisable to use for seed purposes.

Studies of the quality of grain extracted in different zones of the combine showed that, based on a combination of quality indicators, the best grain stands out between flaps 7 and 8.

The heap obtained in this zone goes partly to the additional cleaning sieve, and partly to the visors, through which it is sent to the additional cleaning solution.

The heap entering the grille is blown by the air flow blown by the fan. The cleaned grain enters the grain container 14 and is fed to the auger, which transports it to the elevator 18, which pours the grain into the hopper 20.

This part of the grain can be used for seed purposes.

The heap allocated to the flap 7, containing a lot of damaged seeds, falls on the longitudinal double-slope plate //, through which it is directed to the edges of the board, passes under the peaks 12 and at the exit is displaced with a pile separated by an intermediate grating the concave of the nrutkovoy lattice of the bumper and straw walkers This whole pile goes to the main cleaning, where, close the grates and blow through the air stream injected

it is cleaned by the fan, and the recovered grain is fed to the auger, which transports it to the elevator 19, and the latter feeds the grain to the hopper 21.

This grain is advisable to use for

commodity purposes.

The proposed thresher allows for one mass pass to get two fractions - seed and commodity.

Subject invention

A thresher for threshing agricultural crops, including two consequently threshing drums and lattice concave covering them, equipped with the first at the exit, and the second at the entrance with adjustable guide plates, the main and additional pneumo-reshade cleanings, biologically valuable grain by dividing the pile, selected by the first threshing drum, under the first concave in its front part there is a transverse dividing shield a, under the front slope of which there is a longitudinal dvukhskatny shield;

additional cleaning, while between the longitudinal dvukhskatnym shield and longitudinal peaks is a separation plate.

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