Apparatus for separating potatoes from other materials

Unearthing plants or buried objects – Earth removal and separation – Moving conveyer – digger or separator

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Details

171 1, 171 27, A01D 1710

Patent

active

057754357

DESCRIPTION:

BRIEF SUMMARY
The invention relates to an apparatus for separating potatoes from other materials.


BACKGROUND OF THE INVENTION

In the case of a known apparatus of this type (WO 92/04816), roller bodies are provided as separating elements. They interact in pairs and are disposed in the longitudinal direction between the charging end and the potato-discharging end. The roller bodies, which are driven in pairs in opposite directions, separate potatoes from other materials, such as soil, clods, stones, herbage or the like owing to the fact that the potatoes, in the region of a transporting gutter that is formed as a crotch between the roller bodies rotating in opposite directions, are shifted towards the potato-discharging end under the action of the roller bodies as well as of a conveyor above the roller bodies and that the other materials are eliminated through the working gap between the roller bodies.


SUMMARY OF THE INVENTION

It is an object of the invention to develop an apparatus of the type mentioned, which can be implemented with little technical effort and makes an optimum separation process possible even in the case of different mixtures of potatoes and other materials.
Pursuant to the invention, this objective is accomplished by an.
With the apparatus constructed pursuant to the invention, a structural unit is constructed with little technical effort. For this structural unit, the roller bodies are mounted stably at the side and the potatoes are separated from other materials with short contact times in such a manner, that damage or quality impairment is avoided.
The separating segment, moreover, can be adapted with little effort by a different number of groups of roller bodies rotating in different directions to different separating tasks. The aggressiveness of the separating effect can be adjusted by changing the distance between the roller bodies as well as by changing the relative height of the separating rollers.
In an advantageous construction, the roller bodies are provided with different diameters. At the very least, the larger roller body, rotating in the conveying direction, has a high, soft elastic deformability, through which different admixtures are taken hold of reliably and the potatoes are subjected to a gentle conveying impetus. At the same time, the potatoes are moved from the respective charging end to the potato-discharging end without additional aid.
Further details and advantages arise out of the following specification and the drawings, which illustrate diagrammatically several examples of an inventive apparatus for separating potatoes from other materials.


BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 shows a side view of the inventive apparatus in a first embodiment,
FIG. 2 shows a side view of an apparatus similar to that of FIG. 1 in a second embodiment with an arrangement of roller bodies forming an offset,
FIG. 3 shows a side view of the apparatus, similar to that of FIG. 2, in a tilted position,
FIG. 4 shows a front view of the apparatus in the region of the potato-discharging end,
FIG. 5 shows an enlarged sectional representation of the apparatus to illustrate a first embodiment of an adjusting device,
FIG. 6 shows a sectional representation to illustrate a second embodiment of the adjusting device,
FIG. 7 shows a plan view of the representation of FIG. 6,
FIG. 8 shows a sectional representation to illustrate a third embodiment of the adjusting device,
FIG. 9 shows a plan view of the representation of FIG. 8,
FIG. 10 shows a sectional representation to illustrate a fourth embodiment of the adjusting device,
FIG. 11 shows a plan view of the representation of FIG. 10,
FIG. 12 shows an enlarged detailed representation of a roller body in a side view,
FIG. 13 shows a side view similar to that of FIG. 12 with projections of a different profile at the casing surface of the roller body,
FIG. 14 shows a section through one of the segments forming a roller body, and
FIG. 15 shows an enlarged sectional representation in the region of the working gap of a group of roller bodies.


DESCRIPTIO

REFERENCES:
patent: 1784209 (1930-12-01), Timm
patent: 2953209 (1960-09-01), DeMarcoo
patent: 3805895 (1974-04-01), Teigen
patent: 4416334 (1983-11-01), Bouillon
patent: 4842076 (1989-06-01), Welp
patent: 5069292 (1991-12-01), Baker et al.

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