DE1060420B - Roller hearth furnace - Google Patents

Roller hearth furnace

Info

Publication number
DE1060420B
DE1060420B DEB27129A DEB0027129A DE1060420B DE 1060420 B DE1060420 B DE 1060420B DE B27129 A DEB27129 A DE B27129A DE B0027129 A DEB0027129 A DE B0027129A DE 1060420 B DE1060420 B DE 1060420B
Authority
DE
Germany
Prior art keywords
hearth furnace
roller
bearing
roller hearth
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.)
Pending
Application number
DEB27129A
Other languages
German (de)
Inventor
Heinz Brockmann
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.)
Brockmann & Bundt
Original Assignee
Brockmann & Bundt
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 Brockmann & Bundt filed Critical Brockmann & Bundt
Priority to DEB27129A priority Critical patent/DE1060420B/en
Publication of DE1060420B publication Critical patent/DE1060420B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Description

Rollenherdofen Es sind Rollenherdöfen bekannt, bei denen die einzelnen, sich über die volle Ofenraumbreite erstreckenden. von außen angetriebenen Herdrollen in einer oder mehreren vertikalen Längsebenen unterteilt und die Teilrollen innerhalb des Ofenraumes zusätzlich gelagert sind. Als zusätzliche Lager dienen dabei durchweg Paare von um zueinander und zur Herdrollenachse parallele Achsen frei drehbarer Rollen, auf denen die Herdrollen mit Teilen ihrer Mantelfläche aufliegen. Diese Lager sind unterhalb der Herdrollen im freien Ofenraum und außerhalb der Teilungsstelle angeordnet. Die einander zugekehrten Enden der Herdrollen sind durch Kupplungen miteinander verbunden.Roller hearth furnace Roller hearth furnaces are known in which the individual, extending over the full width of the furnace chamber. externally driven hearth rollers divided into one or more vertical longitudinal planes and the sub-roles within of the furnace chamber are also stored. They consistently serve as additional bearings Pairs of axes that are freely rotatable about one another and parallel to the hearth roll axis Rolls on which the hearth rolls rest with parts of their outer surface. These Bearings are below the hearth rollers in the free furnace space and outside the dividing point arranged. The facing ends of the hearth rollers are through couplings connected with each other.

Demgegenüber ist Gegenstand der Erfindung ein Rollenherdofen mit in mindestens einer vertikalen Längsebene unterteilten und zusätzlich innerhalb des Ofenraumes gelagerten Rollen, der sich von den bekannten Rollenherdöfen mit auf Stützrollen gelagerten Herdrollenteilen vorteilhaft dadurch unterscheidet, daß jeweils zwei Herdrollenteile unmittelbar an ihren einander zugekehrten Enden in einem gemeinsamen Lager abgestützt sind, und zwar so, daß sie gegen jede Abweichung aus ihrer Achsrichtung, auch nach oben, zuverlässig gesichert sind. Dies ist erfindungsgemäß dadurch erreicht, daß zwischen den einander zugekehrten Rollenenden eine kurze, um die Herdrollenachse drehbare Welle gelagert ist, die auf beiderseits aus dem Lager austretenden Zapfen je eine Rolle trägt, auf deren Mantelfläche die hohlen Herdrollenenden mit der Innenwand ihres Mantels aufliegen. In contrast, the subject of the invention is a roller hearth furnace subdivided in at least one vertical longitudinal plane and additionally within of the furnace chamber mounted rollers, which differ from the known roller hearth furnaces with hearth roller parts mounted on support rollers advantageously differs in that two hearth roller parts directly at their ends facing each other in a common bearing are supported in such a way that they against any deviation from their axial direction, also upwards, are reliably secured. This is according to the invention achieved by the fact that a short, is mounted rotatable about the shaft axis on both sides of the Bearings emerging pin each carries a role, on the outer surface of which the hollow Rest the hearth roll ends with the inner wall of their mantle.

Statt mit ihrer eigenen Mantelfläche können die Rollenenden über stirnseitig eingesetzte Büchsen den Lagerrollen aufliegen. Auf diese Weise ist es möglich, für die aufeinander laufenden Teile der Lagerung die für diesen Zweck geeignetsten Materialien auszuwählen und in gewissem Maße auch den Wärmefluß von den Herdrollen zu der Wdlenlagerung zu hemmen. Durch ballige Ausgestaltung der Rollenlauffläche wird einerseits die Anlagefläche zwischen Lagerrollen und Herdrolle bzw. deren Büchse im Interesse geringen Wärmedurchgangs verkleinert, andererseits die Aufnahme kleiner axialer Abweichungen zwischen Herdrolle und Lagerrollen ermöglicht. Das Gehäuse für das Lager ruht auf einer hohlen Säule, durch die ein in den Raum zwischen Lagergehäuse und Welle mündender Schmiermittelkanal geführt ist und durch die der Lagerung von außen her Kühlluft zugeführt werden kann.Instead of having their own jacket surface, the roll ends can be on the face side inserted bushings rest on the bearing rollers. In this way it is possible for the parts of the storage system running one on top of the other the most suitable materials for this purpose and, to a certain extent, the heat flow from the hearth rolls to the log bed to inhibit. The spherical design of the roller running surface is on the one hand the Contact surface between bearing rollers and hearth roller or their sleeve in the interest of low Reduced heat transfer, on the other hand the inclusion of small axial deviations between hearth roller and bearing rollers. The housing for the bearing rests on a hollow column through which a column opens into the space between the bearing housing and the shaft Lubricant channel is guided and through which the storage from the outside cooling air can be fed.

In der Zeichnung ist ein Ausführungsbeispiel für den den Gegenstand der Erfindung bildenden Rollenherdofen schematisch dargestellt, und zwar zeigt Fig. 1 einen senkrechten Ouerschnitt durch einen Rollenherdofen mit in Ofenmitte geteilten Herdrollen, Fig. 2 im Längsschnitt die Lagerung zweier einander zugekehrter Teilrollenenden. In the drawing is an embodiment for the the subject of the invention forming roller hearth furnace shown schematically, namely Fig. 1 a vertical cross-section through a roller hearth furnace with split in the middle of the furnace Herdroll, Fig. 2 in longitudinal section the storage of two facing partial roll ends.

Außerhalb der Ofenwandungen 1 sind die Teilrollen 2 und 3 in Lagern 4 und 5 gehalten und über Kegelräder 6, 7 angetrieben. In der Ofenmitte ist auf einer Säule 8 das Lagergehäuse 9 gehalten. in dem die Welle 10 auf Nadeln 11 frei drehbar lagert. Auf den seitlich aus dem Lagergehäuse 9 vorstehenden Wellenzapfen 12, 13 ist je eine Rolle 14 bzw. 15 befestigt, auf deren balligen Laufflächen die hohlen Enden der Rolle 2, 3 über eine in sie eingesetzte Büchse 16 bzw. Outside the furnace walls 1, the partial rollers 2 and 3 are in bearings 4 and 5 held and driven via bevel gears 6, 7. In the middle of the oven is open a column 8, the bearing housing 9 held. in which the shaft 10 is free on needles 11 rotatable. On the shaft journal protruding laterally from the bearing housing 9 12, 13 is each a roller 14 or 15 attached, on whose spherical running surfaces the hollow ends of the roll 2, 3 via a sleeve 16 or

17 aufliegen. Durch die Säule 8 ist ein Schmiermittelkanal 18 geführt, der in den Raum zwischen Lagergehäuse 9 und Welle 10 mündet. Durch den noch freien Hohlraum 19 der Säule 8 und Austrittsöffnungen 20 kann dem Lager Kühlluft zugeführt werden.17 rest. A lubricant channel 18 is passed through the column 8, which opens into the space between the bearing housing 9 and shaft 10. By the still free The cavity 19 of the column 8 and the outlet openings 20 can supply cooling air to the bearing will.

Sollte sich aus irgendeinem Grunde die Welle 10 im Lagergehäuse 9 festsetzen, womit angesichts der hohen Beanspruchung der Lagerung durch hohe Gewichte und hohe Temperaturen gelegentlich gerechnet werden muß, dann ist immer noch eine Drehung der Rollen 2, 3 möglich, wobei deren innere Mantelfläche über die Lauffläche der Rollen 14, 15 gleitet. Dabei tritt keine Verlagerung der Rollenachsen und infolgedessen auch keine Knickbeanspruchung in den äußeren Lagern 4 bzw. 5 auf. If for any reason the shaft 10 is in the bearing housing 9 fix, with which in view of the high stress on storage due to heavy weights and high temperatures occasionally have to be expected, then there is still one Rotation of the rollers 2, 3 possible, with their inner surface over the running surface the rollers 14, 15 slides. There is no shifting of the roller axes and as a result also no buckling stress in the outer bearings 4 and 5, respectively.

Claims (5)

PATENTANSPROCE: 1. Rollenherdofen mit in mindestens einer vertikalen Längsebene unterteilten Herdrollen, bei dem die Teilrollen innerhalb des Ofenraums zusätzlich gelagert sind, dadurch gekennzeichnet, daß zwischen den einander zugekehrten Enden der Teilrollen eine um die Rollenachse drehbare Welle ge- lagert ist, die auf beiderseits aus dem Lager austretenden Zapfen je eine Rolle trägt und auf deren Mantelfläche die Herdrollen mit der Innenwand ihres Mantels aufliegen. PATENTANSPROCE: 1. Roller hearth furnace with in at least one vertical Longitudinally subdivided hearth rolls in which the partial rolls are inside the furnace chamber are additionally stored, characterized in that between the facing Ends of the partial rollers a shaft rotatable about the roller axis stores is, which carries a role on both sides emerging from the bearing pin and on the outer surface of which the hearth rolls rest with the inner wall of their shell. 2. Rollenherdofen nach Anspruch 1, dadurch gekennzeichnet, daß die einander zugekehrten Rollenenden mit der Innenwand einer stirnseitig in sie eingesetzten Büchse den Lagerrollen aufliegen. 2. roller hearth furnace according to claim 1, characterized in that the facing roll ends with the inner wall of an end face inserted into them The bushing rest on the bearing rollers. 3. Rollenherdofen nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß in den Raum zwischen Lagergehäuse und Welle ein von außerhalb des Gliihraums zugänglicher Schmiermittelkanal mündet. 3. Roller hearth furnace according to Claims 1 and 2, characterized in that that in the space between the bearing housing and the shaft from outside the glow chamber accessible lubricant channel opens. 4. Rollenherdofen nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Laufflächen der Lagerrollen ballig gewölbt sind. 4. Roller hearth furnace according to Claims 1 to 3, characterized in that that the running surfaces of the bearing rollers are convex. 5. Rollenherdofen nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß das Lager auf einer rohrförmigen Säule abgestützt ist, deren Hohlraum, soweit er nicht von der Schmiermittelleitung ausgefüllt ist, der Zuführung von Kühlluft zum Lager dient. 5. Roller hearth furnace according to Claims 1 to 4, characterized in that that the bearing is supported on a tubular column, the cavity of which, so far it is not filled by the lubricant line, the supply of cooling air serves to the camp. In Betracht gezogene Druckschriften: Britische Patentschriften Nr. 429 687, 554 726; österreichische Patentschrift Nr. 174 077. Documents considered: British Patent Specification No. 429 687, 554 726; Austrian patent specification No. 174 077.
DEB27129A 1953-08-21 1953-08-21 Roller hearth furnace Pending DE1060420B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB27129A DE1060420B (en) 1953-08-21 1953-08-21 Roller hearth furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB27129A DE1060420B (en) 1953-08-21 1953-08-21 Roller hearth furnace

Publications (1)

Publication Number Publication Date
DE1060420B true DE1060420B (en) 1959-07-02

Family

ID=6962255

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB27129A Pending DE1060420B (en) 1953-08-21 1953-08-21 Roller hearth furnace

Country Status (1)

Country Link
DE (1) DE1060420B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672378A1 (en) * 1991-01-31 1992-08-07 Stein Heurtey Improvements made to roller furnaces
DE102004056404A1 (en) * 2004-11-23 2006-05-24 Dürr Systems GmbH dryer
US7959770B2 (en) 2004-12-22 2011-06-14 Durr Systems Gmbh Electrocoating plant
US8268150B2 (en) 2006-11-23 2012-09-18 Durr Systems Gmbh Workpiece carrier for conveying a workpiece to be painted
US8732980B2 (en) 2006-06-30 2014-05-27 Dürr Systems GmbH Drier module for a drier

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB429687A (en) * 1933-12-05 1935-06-05 Driver Harris Co Improvements in heat treating furnaces
GB554726A (en) * 1942-01-13 1943-07-16 Electric Resistance Furnace Co Improvements relating to furnaces for heating metals and the like
AT174077B (en) * 1950-01-05 1953-02-25 Deutsche Edelstahlwerke Ag Roller hearth furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB429687A (en) * 1933-12-05 1935-06-05 Driver Harris Co Improvements in heat treating furnaces
GB554726A (en) * 1942-01-13 1943-07-16 Electric Resistance Furnace Co Improvements relating to furnaces for heating metals and the like
AT174077B (en) * 1950-01-05 1953-02-25 Deutsche Edelstahlwerke Ag Roller hearth furnace

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672378A1 (en) * 1991-01-31 1992-08-07 Stein Heurtey Improvements made to roller furnaces
DE102004056404A1 (en) * 2004-11-23 2006-05-24 Dürr Systems GmbH dryer
US7600329B2 (en) 2004-11-23 2009-10-13 Durr Systems Gmbh Drier
DE102004056404B4 (en) * 2004-11-23 2019-05-09 Dürr Systems Ag dryer
US7959770B2 (en) 2004-12-22 2011-06-14 Durr Systems Gmbh Electrocoating plant
US8732980B2 (en) 2006-06-30 2014-05-27 Dürr Systems GmbH Drier module for a drier
US8268150B2 (en) 2006-11-23 2012-09-18 Durr Systems Gmbh Workpiece carrier for conveying a workpiece to be painted

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