DE1163640B - Corrugated form for grain grinding rollers - Google Patents

Corrugated form for grain grinding rollers

Info

Publication number
DE1163640B
DE1163640B DEM53585A DEM0053585A DE1163640B DE 1163640 B DE1163640 B DE 1163640B DE M53585 A DEM53585 A DE M53585A DE M0053585 A DEM0053585 A DE M0053585A DE 1163640 B DE1163640 B DE 1163640B
Authority
DE
Germany
Prior art keywords
grinding rollers
corrugated form
grain grinding
flanks
corrugated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEM53585A
Other languages
German (de)
Inventor
Arthur Schubert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miag Muehlenbau und Industrie GmbH
Original Assignee
Miag Muehlenbau und Industrie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miag Muehlenbau und Industrie GmbH filed Critical Miag Muehlenbau und Industrie GmbH
Publication of DE1163640B publication Critical patent/DE1163640B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/30Shape or construction of rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Description

Riffelform für Getreidemahlwalzen Die Erfindung bezieht sich auf die Formgebung von Riffelzähnen der für die Vermahlung von Getreide verwendeten Mahlwalzen, die paarweise zusammenarbeiten.Corrugated shape for grain grinding rollers The invention relates to the Shaping of corrugated teeth of the grinding rollers used for grinding grain, who work in pairs.

Bei dieser Art der Vermahlung besteht eine wichtige Forderung darin, die Kornschale möglichst großteilig und splitterfrei zu erhalten, um zu einem kleinen Aschegehalt des Endprodukts zu kommen.In this type of grinding, an important requirement is that to keep the grain shell as large as possible and free of splinters in order to make a small one Ash content of the final product to come.

Dieser Forderung kann gemäß der Erfindung besser entsprochen werden durch eine Riffelform, bei der die Zähne auf ihren von der Walzenumfangsfläche ausgehenden Flanken einen scharfen oder gerundeten, auswärts gerichteten Knick aufweisen. Hierdurch werden die Neigungen der Zahnflanken im Mahlbereich verringert und die Schalenstücke dadurch einer geringeren Biegung ausgesetzt, so daß eine merkliche Verringerung der Schalenzerkleinerung stattfindet.This requirement can be better met according to the invention by a corrugated shape in which the teeth extend from the circumferential surface of the roller Flanks have a sharp or rounded, outwardly directed kink. Through this the inclinations of the tooth flanks in the grinding area are reduced and the shell pieces thereby subjected to less bending, so that a noticeable reduction the crushing of the shell takes place.

Die Erfindung ist an Hand eines Ausführungsbeispiels im folgenden näher erläutert, wobei die Zeichnung den vergrößerten Querschnitt eines Riffelzahnes darstellt.The invention is based on an exemplary embodiment in the following explained in more detail, the drawing showing the enlarged cross section of a corrugated tooth represents.

Der Riffelzahn 1 geht von, der äußeren zylindrischen Mahlwalzenfläche 7' bzw. 7" aus und weist normalerweise die anfangs gestrichelten Flanken 9 und 11 auf, die die Winkel 6 und 3 zu der Radialen 15 besitzen. Gemäß der Erfindung sind nun im Mahlbereich des Zahnes, also an seinem Kopf, die Neigungen der Flanken verringert, so daß sich die Winkel 6 und 3 auf die Winkel 8 und 5 vergrößern. Hierbei entstehen in den Flankenflächen auswärts gerichtete Knickkanten 2 und 4, in denen die Kopfflanken 10 und 12 geringerer Neigung in die Flanken 11 und 9 normaler, größerer Neigung übergehen.The corrugated tooth 1 extends from the outer cylindrical grinding roller surface 7 'or 7 "and normally has the flanks 9 and 11, which are initially dashed which have the angles 6 and 3 to the radial 15. According to the invention are now in the grinding area of the tooth, i.e. on its head, the inclinations of the flanks are reduced, so that the angles 6 and 3 increase to the angles 8 and 5. Here arise in the flank surfaces outwardly directed kink edges 2 and 4, in which the top flanks 10 and 12 of lesser inclination in the flanks 11 and 9 of normal, greater inclination pass over.

Die Knickkanten 2 und 4 können auch gerundet sein. Es ist, wie man ohne weiteres erkennt, die von den Flächen 7' und 11 gebildete Kante 13 schärfer als die von den Flächen 7" und 12 gebildete Kante 14. Da die Kornschale an diesen Kanten nicht so scharf biegend angegriffen wird wie bei der bekannten Riffelzahnform, wird sie weniger zersplittert, und es kann der Ascheanfall im Endprodukt wesentlich gesenkt werden. Entsprechendes gilt für die andere Zahnflanke.The kink edges 2 and 4 can also be rounded. It is how to readily recognizes the edge 13 formed by the surfaces 7 'and 11 more sharply than the edge 14 formed by the surfaces 7 ″ and 12. Since the grain shell on these Edges are not attacked as sharply bending as with the well-known serrated tooth shape, it will be less fragmented, and the ash build-up in the end product can be significant be lowered. The same applies to the other tooth flank.

Claims (1)

Patentanspruch: Riffelform für Getreidemahlwalzen, g e k e n n -z e i c h n e t d u r c h einen scharfen oder gerundeten, auswärts gerichteten Knick (2, 4) auf mindestens einer der von der Walzenumfangsfläche (7', 7") ausgehenden Flanken (9, 10;11, 12) eines Riffelzahnes (1).Claim: Corrugated form for grain grinding rollers, g e k e n n -z e i n e t by a sharp or rounded, outwardly directed kink (2, 4) on at least one of the roller circumferential surface (7 ', 7 ") starting Flanks (9, 10; 11, 12) of a serrated tooth (1).
DEM53585A 1961-10-06 1962-07-16 Corrugated form for grain grinding rollers Pending DE1163640B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1163640X 1961-10-06

Publications (1)

Publication Number Publication Date
DE1163640B true DE1163640B (en) 1964-02-20

Family

ID=4560852

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM53585A Pending DE1163640B (en) 1961-10-06 1962-07-16 Corrugated form for grain grinding rollers

Country Status (1)

Country Link
DE (1) DE1163640B (en)

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