SU30028A1 - Grain cleaning machine - Google Patents

Description

Grain-cleaning machines are known with a mesh drum mounted in a chamber that is associated with an exhauster serving to suck lightweight impurities from the drum. In the proposed machine, the drum, in a section perpendicular to the axis, has the shape of an ellipse, which is provided in order to grind grain processed by the drum.

In FIG. 1 shows a sectional view of the machine; FIG. 2-side section of the machine.

In the chamber 8 of the machine, there is a net drum 2 mounted on the shaft I, which is driven into rotation from the drive shaft / I carrying the pulley 77, with the aid of a worm gear 72. The drum 2, in cross section perpendicular to the axis, has the shape of an ellipse . To clean the drum filament surface, a brush M is applied, which is pivotally attached to the partition wall of the chamber 8. At the top of the chamber are inclined guards JO

and an exhauster 7. The latter serves to suck up lightweight impurities from the grain as it moves from the bucket 9 to the drum 2, along the inclined guards 10, and also to aspirate the grain in the drum 2. At the bottom of the machine casing there are rotary valves 5 serving to regulate air flow.

The proposed form of a drum with an elliptical cross section contributes to a better grinding of grain in the drum and increases, according to the author, the performance of the machine.

The subject matter of the invention.

A grain cleaning machine using a rotating drum, wherein the screening drum, in order to grind the processed grain in a section perpendicular to the axis, has the shape of an ellipse.

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