SU1230533A1 - Thrashing and separating device - Google Patents

Description

2. The device according to claim 1, that is, that the fingers of the adjacent axes are located with a displacement along the axis of the drum.

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to threshing and separating devices of combine harvesters.

The purpose of the invention is to improve the quality of threshing.

Figure 1 shows the threshing and separating device, side view; figure 2 is the same, view a in figure 1.

The threshing and separating device (MSU) contains a threshing drum consisting of a row of rings 1 fixed on a common axis and deck 2, On the rings 1 by means of brackets 3, on the axes A, with their uprights 5 rotation of the drum sides of the nicknames 6 with whips 7. The back side of the nicknames 6 is freely mounted on the studs 8 with the ability to move along them. In this case, the podbushniki 6 have the possibility of radial oscillations about the axis 4, the amplitude of which is set by nuts 9. On the studs 8 there are technological springs 10, which hold the podchiki 6 in the transport position.

On the rings 1 under the sub-brackets 6 a tubular axis I1 is fixed, on which between the posts 5 sub-boilers 6 a number of fingers 12 are freely placed, which are two-armed levers, the short shoulders of which are located along the front during rotation of the drum side of the sub-boom 6, and the long ones the sides of the mentioned subdistrict 6,

The distances between the fingers 12 on the axis 11 are set by the sleeves 13, while the fingers 12 on the adjacent axes I5 are disposed (in a checkerboard pattern).

The fingers 12 have the possibility of free oscillation relative to the axes 11, and the amplitude of the oscillations is limited by the abutment of their shoulders to the front or rear edges of the sides of the podichnikov

6, while the short shoulder of the fingers 12 is passive and serves to limit the deflection of the fingers 12 toward the drum, thereby preventing the fingers 12 from hanging inside the Gui drum of the drum during threshing.

The device works as follows.

Before starting the adjustment nut 9, a minimum working gap is established between, the whip 7 and the deck 2. When the drum rotates, on the side of the supplied mass, the articulated podchichniki 6 with the whips

5 to 7, the centrifugal force of inertia is pressed against the adjusting nuts 9 and the working gap is established depending on the thickness of the mass to be threshed.

20 With an increase in the thickness of the bread mass layer, the podchechnik 6 with whips 7 begin to deflect the rear end along the pin 8, keeping the shock load on the threshed

25 mass, preventing its chafing and loading. As the uniform mass supply is established, the device automatically returns to the previous mode of operation.

30 In addition, the hinged installation of the sub-feedbot 6 allows you to avoid a turn-around of the strips of deck 2 if foreign objects get into the working gap during the threshing process.

35 During the rotation of the threshing drum, the centrifugal inertia forces press the big shoulder of the fingers 12 to the rear edge of the subgun 6 and, as the end of the father 12 protrudes above the whip

40 7 to 12-15 mm, it affects the threshed mass, stripping it and helping to speed up its passage through the local self-government, and the passage between the bars of deck 2 eliminates the possibility of clogging with the last threshing products.

LSG provides high quality threshing 5sh (5th mass regardless of

3, the Device in PP. 1 and 2, in that the axles are provided with sleeves located between the fingers.

its thickness and physical and mechanical properties. When an easily threshed mass passes between the whip and the deck, the minimum clearance set by the adjusting nut will be maintained. When feeding a difficultly threshed mass, there is no need to change the said gap, since the sub-boar with the whip will automatically be pressed in the direction of the drum, keeping the same

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shock load on the mass, and inertial fingers will contribute to a better threshing of the mass, speeding up its passage through the thresher device and increasing the intensity of the process.

This eliminates the blockage of the long-straw and wet bread mass of the deck, as well as eliminates its damage when foreign bodies enter the working gap.

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Claims (3)

1. THRESHING-SEPARATING DEVICE containing a deck and a threshing drum with pests attached to the hems and a finger comb, characterized in that, in order to improve the threshing quality, the fingers are pivotally mounted on common axes and are made in the form of two-arm levers with a long and short shoulders, while the headers are made with slots in the front and rear edges, with the long shoulders of the fingers located in the holes of the rear edges of the headers, and the short ones in the holes of the front edges of the headers. 2. Device pop. 1, distinguished by the fact that the fingers of adjacent axes are displaced along the axis of the drum. 3. The device according to paragraphs. 1 and 2, characterized in that the axes are provided with bushings located between the fingers - f