RU182575U1 - MOBILE GRAIN CLEANING DEVICE - Google Patents

Abstract

The utility model relates to agricultural machinery, namely to mobile grain cleaning machines for cleaning grain heaps from impurities. The technical result of the utility model is increased productivity. The grain cleaning device includes a closed-type suction unit, a screen part with a cleaning mechanism, and a grain thrower. The loading tray is placed in a closed suction unit, which is equipped with a sedimentation chamber for small impurities. 1 ill.

Description

The utility model relates to agricultural machinery, namely to mobile grain cleaning machines for cleaning grain heaps from impurities.

Known cleaner heap OVS-25k / 30, including mounted on the frame, a grain cleaner with sieve mills, a sieve cleaning device, a receiving chamber, an open aspiration system. [Operation manual of LLC Voronezh Agrotechnology (hereinafter referred to as the Manual) http://vagrotec.ru/wp-content/uploads/2015/05/OVS-25k30-Rukovodstvo-po-ekspluatatsii.pdf].

The known device has a low productivity of cleaning grain heaps, and the removal of purified grain material; productivity on preliminary cleaning is 26 t / h, and on primary 14.5 t / h (page No. 4 of the Manual).

The objective of the utility model is to improve the known device.

The technical result is an increase in productivity while maintaining the quality of the material being cleaned.

The technical result is achieved by the fact that a mobile grain cleaning device including a sieve mill mounted on a frame with a running gear with a sieve cleaning mechanism, an aspiration cleaning unit with a loading tray and an unloading channel placed above it, a grain heap lifter into an aspiration cleaning unit and a clean grain loading conveyor, it is additionally equipped with a grain thrower, the loading tray of the trimmer which is located under the discharge tray of the shipping conveyor of clean grain. In addition, the suction unit can be closed with a sedimentation chamber for small impurities.

The figure shows a mobile grain cleaning device.

The mobile grain cleaning device comprises a frame 1 with a running gear 2 on which a two-tier sieve mill 3 with a sieve cleaning mechanism (not shown) is installed. Above the upper tier of the sieve mill 3, there is a closed suction unit 4 with a loading chute 5 and an unloading channel 6 for feeding grain heaps without small impurities to the sieves of the upper tier of the sieve mill 3. A sedimentation chamber for small impurities (not shown) is placed inside block 4. Closed-type aspiration system allows feeding grain heaps to the upper tier of the sieve mill without fine impurities due to the sedimentation of the latter in the sedimentation chamber.

Under the lower tier of the sieve mill 3 there is a tray 7 for collecting clean grain with the feeding screw of the latter to the shipping conveyor 8. The unloading tray 9 of the conveyor 8 is located above the loading tray 10 of the trimmer 11 of the grain thrower with the unloading pipe 12. The grain thrower allows you to increase the productivity of grain shipment when stored in bales or loading into vehicles.

On the front of the frame 1 rests a grain elevator 13 of a grain pile with a feeder 14. An unloading tray 15 of a grain elevator 13 is placed above the loading tray 5 of block 4.

Mobile grain cleaning device operates as follows.

Grain heap stored in piles by the feeders 14 of the grain elevator 13 is fed through the unloading tray 15 into the loading tray 5 of block 4 of the closed aspiration system.

When the grain heap gathers from the tray 5 into the channel 6, small impurities are removed from it by a vortex stream created by a fan (not shown) and settle in a sedimentation chamber with subsequent removal by a screw (not shown).

Further, the grain heap without small impurities enters the sieves of the upper tier of the sieve mill 3. Grain is freed from large impurities and then flows by gravity to the sieves of the lower tier of the sieve mill 3. Where are the fractions that did not enter the sedimentation chamber and did not separate on the upper tier are cleaned camp. Then the cleaned grain material enters the tray 7 of pure grain, from which it is fed by a screw (not shown) to the discharge conveyor 8. The latter moves the cleaned grain to the discharge tray 9 through a tubular groove.

From the tray 9, the grain goes through the loading tray 10 into the trimmer 11 on an endless belt, which throws the grain into the pipe 12 of the grain thrower, setting the direction of the grain's flight to the desired place of storage or loading of vehicles.

Claims (2)

1. A mobile grain cleaning device comprising a sieve mill mounted on a frame with a chassis with a sieve cleaning mechanism, an aspiration cleaning unit with a loading tray and an unloading channel placed above it, a grain heap lifter into an aspiration cleaning unit and a clean grain unloading conveyor, characterized in that it is additionally equipped with a grain thrower, the loading tray of the trimmer which is located under the discharge tray of the shipping conveyor of clean grain. 2. The device according to claim 1, characterized in that the suction unit is made of a closed type with a sedimentation chamber for small impurities.

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