MICROMELIA

MICROMELIAAfter reading in the “M-K” on the continuation of the contest “Small mechanization”, decided to take part in it. I propose a simple and compact micromelic. About the size can be judge by the pictures: the whole structure fit on my one hand. It is universal: designed for the production of corn flour of both large and fine grinding, crushing various zernatto and preparation of feed for livestock and poultry in their personal farms.

To make it capable of any Amateur master, with experience on lathe and drilling machines.
 
The working bodies of the mechanism are the rotor and stator with ribbed surfaces. First, driven by electric motor 180 W, rotates inside a second, performing the function of millstones.
 
The structure looks like this: on the basis of a steel plate with a thickness of 6-8 mm is mounted in the stator (the stationary working part) and the electric motor from the washing machine. Both units are mounted on corners of 25X25X4 mm. And the first is regulated in the transverse direction relative to the axis of rotation of the rotor, and the second longitudinal. These features are built into the nodes of the fastening elements. The shank of the motor shaft is connected with the shaft of the rotor coupling of parallel keys. A shaft having a flange for attaching a rotor, planted in the stator on the bearing No. 203. Engine side bearing cap covers, made of steel plate 3.5 mm thick. To the shaft flange Ø 65 mm with three bolts M6 is mounted a movable working body — rotor. I made in two versions: heavy and light, allowing you to adjust the grinding type: by installing a heavier rotor, we will get crushed a lot smaller and Vice versa.
A rotor having a ribbed surface, are manufactured. On the flat end of the steel cylindrical workpiece to apply pitch circle Ø 104,5 mm. On it at equal distance mark the hole centers. Then according to the planned centers of drilled holes Ø 10 mm. Further processing of the workpiece is produced on a lathe: grind off the outer side to a pitch circle and chiseled the Central part at a depth of 10 mm. then unfold the workpiece and fixed in the Chuck of the lathe, chiseled on the other side. It remains only to drill the Central hole for shaft Ø 15 mm and three fastening holes Ø 6,5 mm. Heavy duty rotor ready. For the manufacture of light — all operations repeat, and drilling machine drill additional holes in the working surface of the rotor to facilitate the details.
 
Micromelia.Micromelia.
Micromelia:
1 — feed hopper 2 — bolt M6, 3 — intermediate plate, 4 — stator 5 — cover of the stator 6 — rotor, 7 — a rotor shaft with a flange, 8 — nozzle, 9 — base micromelia, 10 — area of attachment of the stator 11, the corners of attachment of the electric motor, 12 — bearing cap, 13 — coupling, 14 — cover, 15, 17 — pin, 16 — motor on 18 — handle, 19 — ruckdashel, 20 cover, 21 — bearing No. 203.
 
The most difficult part of micromelic — stator. As for rotor, it will require turning and drilling works. On a steel cylindrical billet Ø 154 mm and a thickness of 43 mm is applied dividing the circumference, denoting the dimensions of the working chamber and passing through the centers of the future holes forming a ribbed surface. Then mark out the contours of the upper and lower Windows. Then right on drawing produce a layout of the holes and drill them to a depth of 28 mm. Now on the lathe chiseled the Central hole of the working chamber, reversing the blank, prepare the landing bearing No. 203. Drill holes for mounting the intermediate plate, pipe, bearing cap and corners fixing of the rotor, it is fixed on the plate-base.
On the external side working chamber of the rotor is closed by the cover, cut from steel sheet of thickness 1,5 mm. feed hopper is attached via an intermediate plate to the upper window of the stator is made in a funnel shape from steel sheets with thickness of 1 mm. In my design this piece is assembled from four plates, tightened bolts, but other options are possible. The lower window of the stator is provided with a pipe, which if necessary can I wear my sleeve. He will direct the finished product in the filled bag or other container.
 
Electrical equipment consisting of a capacitor, thermal relay and switch, is located on the plate of dielectric material mounted on small angles near the motor. Before you begin work, you must use the bolts to adjust the stator so that the rotor rotates easily, without jamming.
 
Micromelia is installed on a chair or stool, turn on the engine, and the hopper is filled with grain. The crushed products will be sleep from the outlet in the bottle. Experience has shown the following results: a bucket of corn are crushed in approximately 6-7 min., and wheat, millet, buckwheat — by 1.5—2 times faster.
 
All portable microelisa worked for more than three years. Of failures and breakdowns no. I think many rural residents want to make such.
 
A. BALANSKI, Kremenchug, Poltava region.

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