SU30191A1 - Thresher - Google Patents

Description

The invention relates to threshing machines with a drum and an exhauster installed on a common shaft, in which the grain is removed from the machine under the influence of centrifugal force, and the straw and meat are sucked in by the air flow. In the proposed thresher, the threshed grain is subjected to the action of an additional air flow in the direction opposite to the movement of the grain, in order to scatter the grain from the slurry and light impurities. To achieve this, a conical funnel with spiral vanes on the outer surface, forming channels, one of which serves to direct the pile and the other to remove straw and light impurities, is placed in an annular conical shaped channel of the chamber connecting the drum to the xshaustor casing. under the action of air flow sucked through the annular opening and blowing the grain ejected under the action of centrifugal force through this opening.

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In FIG. 1 is a vertical longitudinal section of a thresher; FIG. 2 is a cross section of it according to AB of FIG. one.

Threshers are mounted on frame 2 of the rack / and the casing 3 of the exhauster 6. The shaft 5 is mounted in bearings 4 and connected by a coupling 9 to the engine 10. The bread mass to be threshed enters the funnel 7 and the cone-shaped screw 11 with spiral blades // is fed to the conical grooved a threshing drum 12 fixed on the shaft 5 with a key 13. The diameter of the blades Pa increases gradually towards the threshing drum. The drum 12 is surrounded by a casing 14, to the inner surface of which are attached a V-shaped section of the bar 75, arranged parallel to the generator of the conical drum. At the exit end of the drum 12, a conical funnel / 6 is fixed, on the outer surface of which spiral blades are placed. Funnel 16 installed

in the annular conical channel of the chamber 19, which connects the drum to the exhauster casing, and forms the channels 7 and 20. The heap coming out of the drum enters the channel 77, and heavy grains are ejected through the annular opening 18, At that, the air which is sucked in by the exhauster through the opening 18 blows the grains and carries the straw and light impurities into the channel 20, from where they are sucked into the chamber / P and further transported by the air stream to the exhaust channel 8. I

The subject of the patent.

1. A thresher with a drum and an exhauster mounted on a common shaft, which is connected with the chamber 19, which connects the drum to the exhauster casing, is provided with an annular conical shape

a channel in which a drum-mounted conical funnel 76 is installed to form channels 77 and 20, of which the first serves to guide the pile, and the second to drain straw and light impurities under the action of a stream of air sucked through the annular opening 18 to blow the grain ejected through this hole by centrifugal force.

2. The form of execution of the thresher indicated in item 1, except that spiral blades are mounted on the outer surface of the conical funnel J6.

3. When specified in pp 1 and 2, the use of a feeding device consisting of a funnel 7 and a screw 77, made in a conical spiral with blades 7 / s.