RU187106U1 - Mobile grain cleaning device - Google Patents

Abstract

The technical solution relates to the agricultural and grain processing industries. The device consists of a platform, a loader and a grain cleaner installed on it, made in two stages, including cleaning using a mesh conveyor and air flow, a shipping conveyor, a screw made of two spirals of right and left rotation, placed on a single shaft, and mounted in the middle of the sprocket shaft , which is simultaneously the lower sprocket of the shipping conveyor and the drive sprocket of the screws.

Description

Refers to the agricultural and grain processing industries and can be used in grain cleaning machines.

Known Cleaner heap self-propelled OVS-25 JSC "Voronezhselmash" [Operation manual].

The disadvantages of this heap cleaner are:

low material cleaning performance;

short storage distance of the shoulder;

Shipment of small impurities in one direction.

Self-propelled OVS-25 heap cleaner:

the formation of a pile of pure grain is carried out on the right side of the unit at a small distance, this does not allow forming a large pile of grain in one pass to save the warehouse territory and time for its formation, storage and shipment;

the formation of the waste shoulder is carried out on the left side of the units; the formation of the shoulder cannot be changed, which is not always applicable when a different technological scheme for cleaning and storing the product is required;

with increasing modern technologies of purification and sale of the product, not a large capacity of the purifier with a large total power consumption (9.5 kW).

A device is known, consisting of feeder scrapers, a lower head of a feed conveyor, sieves of welded central bars — interchangeable; a hopper for collecting and discharging large impurities, welded side-removable bars, a waste container, a diametrical fan, a throttle valve, a receiver, an unloading conveyor, a trimmer block with an adjustable discharge pipe, a cyclone, and a frequency converter [RU 165084 U1].

The disadvantage of the device is the complexity of the design.

The closest technical solution is a mobile grain cleaning device [RU 152871 U1], comprising a platform, a loader and a grain cleaner installed on it, characterized in that the grain cleaner is made in two stages, including cleaning using a mesh conveyor and air flow; further comprises a grain thrower mounted on the platform.

The device consists of:

1. The bootloader.

2. Two-stage grain cleaner, including cleaning with a mesh conveyor and air flow.

3. Platforms.

4. Grain thrower.

The disadvantage of the device is the complexity of the design.

The technical result is a simplification of the design.

A mobile grain cleaning device consisting of a platform mounted on it with a loader and a grain cleaner made in two stages, including cleaning with a mesh conveyor and air flow, characterized in that it contains a shipping conveyor, an auger made of two spirals of right and left rotation, placed on a single shaft, and an asterisk installed in the middle of the shaft, which is simultaneously the lower sprocket of the shipping conveyor, and the auger drive sprocket.

In FIG. 1 shows a general view of a mobile grain cleaning device: 1 - a shipping conveyor, 2 - a heel forming toe.

FIG. 2 shows the screws and the lower part of the shipping conveyor: 3 - chain of the shipping conveyor, 4 - drive sprocket of screws, 5 - screws of the left and right rotation, 6 - box of the shipping conveyor, 7 - box of screws.

The screws, rotating in the box, move the clean grain to the center of the box to the scrapers of the shipping conveyor.

The applied loading method of the shipping conveyor ensures a minimum distance of movement of pure grain, its damage is reduced.

And the combination of the shipping and screw conveyors eliminates the use of an additional drive for one of the conveyors, the process of formation and shipment of clean grain occurs in a single transport box.

The device comprises a loader, a loading inclined conveyor and two perpendicularly located feeders pivotally connected to the lower head of the conveyor, a grain cleaning machine, a platform, which is a metal structure on which all the nodes and mechanisms of the grain cleaning device are mounted. As well as a shipping conveyor.

The main nodes of a mobile grain cleaning device include nodes of a loading conveyor, a grain loader with a transitional unit that ensures uniform distribution of material to the mesh conveyor and its entry into the pneumatic channel.

Mobile grain cleaning device operates as follows. The grain pile stored in the shoulders is moved by feeder scrapers to the center of the lower part of the loading inclined conveyor. The conveyor scrapers grab the material and feed it onto the adapter with dividers, which evenly distribute the material along the mesh conveyor for its further introduction into the aspiration channel. The removal of light impurities from the sedimentary hopper is carried out by a worm gear motor mounted on the conveyor shaft. The cleaned grain material enters the endless tape of the trimmer and is sent through the trimmer pipe to the desired location for storage or loading of vehicles.

Grain-cleaning device contains an adapter, which consists of an adapter housing with dividers, which ensure uniform distribution of material along the working body of the mesh conveyor.

As a result, the material is evenly distributed over the entire width of the working bodies of the machine and is fed with uniform speed and performance given by the loading conveyor with feeders.

In other grain cleaning complexes, adapters with dividers are not used.

The result is achieved by dividing the inclined wall of the adapter by dividers into uniform sectors, along which the material is evenly distributed on the working body of the grain cleaning machine.

The grain cleaning complex is equipped with a conveyor drive (screw, scraper) for removing light impurities from the sedimentary chamber of the grain cleaning machine.

An independent drive from the gearmotor gives a quick change in position (left, right) of the discharge of light impurities.

It consists of a gear motor directly mounted on the drive shaft of the conveyor.

The conveyor drive (screw, scraper) for removing light impurities from the sedimentary chamber of the grain cleaning machine is carried out by a worm gear motor mounted on the shaft.

The shipping conveyor removes clean grain from the grain cleaning machine and guides it with a rotary toe to the place where a pile of clean grain is formed.

The trimmer is not used, which greatly simplifies the design and does not lead to excessive damage to the grain.

Claims (1)

A mobile grain cleaning device consisting of a platform, a loader and a grain cleaner installed on it, made in two stages, including cleaning with a mesh conveyor and air flow, characterized in that it contains a shipping conveyor, an auger made of two spirals of right and left rotation, placed on a single shaft, and an asterisk installed in the middle of the shaft, which at the same time is the lower sprocket of the shipping conveyor and the drive sprocket of the screws.

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