DE672400C - Coolable grinding roller - Google Patents
Coolable grinding rollerInfo
- Publication number
- DE672400C DE672400C DEL92685D DEL0092685D DE672400C DE 672400 C DE672400 C DE 672400C DE L92685 D DEL92685 D DE L92685D DE L0092685 D DEL0092685 D DE L0092685D DE 672400 C DE672400 C DE 672400C
- Authority
- DE
- Germany
- Prior art keywords
- grinding roller
- coolable
- steel
- roller
- rollers
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/44—Cooling or heating rollers or bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
- B02C4/305—Wear resistant rollers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Confectionery (AREA)
Description
Kühlbär-',o#.! -MahlwaIze In einer ganzen Anz#l-il von Industrien, wie in der Schokoladen-, Farben-, Seifen- und Müll--reiindustrie, hat sich die Verwendung vonHartgußwalzen eingebürgert. SolcheWalzen werden fälschlicherweise oft als Stahlwalzen bezeichnet, lobgleich Stahlwalzen im technologischen Sinne des Wortes in diesen Industrien nie Verwendung gefunden haben.Cool bear - ', o #.! - Grinders in a number of industries, as in the chocolate, paint, soap and garbage-processing industries, the use has increased Naturalized by hard cast rolls. Such rolls are often mistakenly called steel rolls denotes, praiseworthy steel rollers in the technological sense of the word in these Industries never found use.
Infolge ihrer Herstellungsart und der besonderen Eigenschaften des Hartgusses erhalten die Hartgußwalzen notwendigerweise eine erhebliche Dicke. Ferner ist ihre, Oberfläcllenhärte beschränkt.Due to their production method and the special properties of the In chilled cast iron, the chilled cast iron rolls necessarily have a considerable thickness. Further their surface hardness is limited.
Bei der kühlbaren Mahlwalze gemäß der Erfindung ist der Mantel der Walze durch einaus einer äußeren harten undeiner inneren zähen Lage bestehendes, Verbundstahlrohr gebildet. Eine solche Walzte weist trotz leichtem Gewicht bei dürmer Wandstärke die erforderliche Festigkeit auf, :und ihre Ob&-fläche kann auf einen wesentlich höheren Härtegrad gebracht werden, als dies bei den üblichen Hartgußwalzen der Fall ist. Die geringere Wandstärke bringt wesentlicheVorteile: insbesondere ist die Kühlung solcher Walzen, die normalerweise mit Wasser gekühlt werden, intensiver. Die dünnere Wandung hat auch :ein leichteres Gewicht zur Folge, was einen wesentlichen wirtschaftlichen Vorteil für die Maschine bedeutet. Die größere Oberfläc#henhärte, bringt die an sich erwünschte höhere Verschleißfestigkeit TVdt sich. Die innere zähe Lage ist gut scliweißbar, so daß mit derselben Walzenstummel. vder Scheiben durch Schweißen verbunden werden können.In the coolable grinding roller according to the invention, the jacket is the Roller by a layer consisting of an outer hard and an inner tough layer, Composite steel pipe formed. Despite its light weight, such a roller shows thinner Wall thickness has the required strength,: and its surface can be on a can be brought to a significantly higher degree of hardness than is the case with the usual chilled cast iron rollers the case is. The smaller wall thickness brings essential advantages: in particular the cooling of such rollers, which are normally cooled with water, is more intensive. The thinner walls also result in a lighter weight, which is essential means economic advantage for the machine. The greater surface hardness, brings about the higher wear resistance TVdt, which is desirable per se. The inner one tough layer is easy to weld, so that with the same roller stub. vder discs can be connected by welding.
Auf der Zeichnung sind drei Ausfüllrungsbeispiele des Erfindungsgegenstandes, dargestellt, und zwar zeigen die Fig. i bis 3 je 2inen Längsschnitt durch eine Mahlwalze.In the drawing, three examples of filling in the subject matter of the invention are shown, namely, FIGS. 1 to 3 each show a longitudinal section through a grinding roller.
Nach allen drei Figuren besteht die Mahlwalze aus einem Rohr i aus sog. Verbundwerkstoff. Ein Verbundstahlblock, dessen Kern aus -unlegiertem, zähem Stahl besteht, hat -einen Mantel aus legiertem Stahl. Aus dem Verbundstahlblock lassen sich in be- kannter Weise durch Ausdornen) Walzen und Ziehen nahtlose Rohre herstellen. Ein soldhes nahtloses Rohr besteht aus zwei Lagen: einer inneren Lage i' aus einem zähen, unlegierten Stahl und einer äußeren Lage i" aus legiertem Stalil, dem durch die üblichen Härteverfahren eine sehr große Härte: ge- geben werden kann. Die Dicke der zwei M.etallschichten wird je nach den besonderen Verhältnissen gewählt. Technologisch bieten sich in dieser Beziehung keine Schwierigkeiten. Es ist nur darauf zu acht-en, daß der übergang zwischen beiden Schichten ein allmählicher ist, um deren innige Verbundenheit zu gewährleisten.According to all three figures, the grinding roller consists of a tube i made of so-called composite material. A composite steel block, the core of which is made of -unalloyed, tough steel, has -a jacket made of alloyed steel. Seamless by Ausdornen) rolling and drawing pipes can be made of the composite steel ingot produced in a known manner. A soldhes seamless tube consists of two layers: an inner layer i 'of a tough, non-alloyed steel and an outer layer i "of alloy Stalil, the by the usual hardening processes a very high hardness. Can give overall The thickness of the two Metal layers are chosen according to the particular conditions. Technologically speaking, there are no difficulties in this respect. It is only necessary to ensure that the transition between the two layers is gradual in order to ensure that they are intimately connected.
Beim Beispiel nach Fig. i sind in das Rohr i geschmiedete Achsstummel 2 eingepreßt.In the example according to FIG. I, stub axles are forged into the tube i 2 pressed in.
Bei der Ausfülirungsform nach Fig. 2 sind Zwischenböden 3 eingescliweißt und eine durchgehende Achse 4 an ihnen durch Schweißen befestigt.In the embodiment according to FIG. 2, intermediate floors 3 are clipped in and a continuous axis 4 is attached to them by welding.
Fig.3 zeigt eingeschiweißte Zwischenböden 5 und in die Zwischenböden eingeschweißt je einen Aclisstummel 6. FIG. 3 shows welded-in intermediate floors 5 and an Aclis stub 6 welded into each of the intermediate floors.
Die Kühlung der Walzen erfolgt in der üblic'hen Weise vorzugsweise durch Wasser, welches durch entsprechende Bohrungen in den Achsstummeln zu- und abgeführt wird.The rollers are preferably cooled in the usual way by water, which through corresponding holes in the stub axles and is discharged.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL92685D DE672400C (en) | 1937-06-07 | 1937-06-08 | Coolable grinding roller |
FR838951D FR838951A (en) | 1937-06-07 | 1938-06-07 | Cooling grinding cylinder for roller mills |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE838951X | 1937-06-07 | ||
DEL92685D DE672400C (en) | 1937-06-07 | 1937-06-08 | Coolable grinding roller |
Publications (1)
Publication Number | Publication Date |
---|---|
DE672400C true DE672400C (en) | 1939-03-06 |
Family
ID=27623701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL92685D Expired DE672400C (en) | 1937-06-07 | 1937-06-08 | Coolable grinding roller |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE672400C (en) |
FR (1) | FR838951A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990006811A1 (en) * | 1988-12-22 | 1990-06-28 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Abrasion-resistant steel cladding for the roller surfaces of roller machines, in particular high-pressure roller presses |
DE29817067U1 (en) | 1998-09-23 | 1999-03-25 | Mehden, Inge von der, 24647 Ehndorf | Grinding roller |
-
1937
- 1937-06-08 DE DEL92685D patent/DE672400C/en not_active Expired
-
1938
- 1938-06-07 FR FR838951D patent/FR838951A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990006811A1 (en) * | 1988-12-22 | 1990-06-28 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Abrasion-resistant steel cladding for the roller surfaces of roller machines, in particular high-pressure roller presses |
DE29817067U1 (en) | 1998-09-23 | 1999-03-25 | Mehden, Inge von der, 24647 Ehndorf | Grinding roller |
Also Published As
Publication number | Publication date |
---|---|
FR838951A (en) | 1939-03-21 |
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