EP0353179A2 - Roll fastening for roller straightening machines - Google Patents
Roll fastening for roller straightening machines Download PDFInfo
- Publication number
- EP0353179A2 EP0353179A2 EP89730153A EP89730153A EP0353179A2 EP 0353179 A2 EP0353179 A2 EP 0353179A2 EP 89730153 A EP89730153 A EP 89730153A EP 89730153 A EP89730153 A EP 89730153A EP 0353179 A2 EP0353179 A2 EP 0353179A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- straightening
- sleeve
- bushing
- nut
- 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.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 12
- 230000000284 resting effect Effects 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/035—Rolls for bars, rods, rounds, tubes, wire or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
Definitions
- the invention relates to a roller fastening for straightening roller machines with a roller bushing arranged on a straightening pin, on which the straightening roller can be clamped by means of a tension nut adjustable on the roller bushing acts conical clamping sleeves with adjacent conical surfaces, which cause a radial tensioning of the straightening roller when the clamping sleeves move axially.
- the known roller attachment (DE 36 03 371 A1) has a hydraulically operated clamping head located at the free end of the rotatable roller axis, which is connected to a tension rod arranged in a central bore of the roller axis and supported in it, the annular piston of the clamping head being attached to the End face of the roller axis is supported and the roller sleeve receiving the straightening roller is braced against a collar on the roller axis by means of a bayonet ring which interacts with the clamping head.
- the straightening pin is tapered at least over a partial length towards the clamping head and the inside surface of the roller bushing is provided with a corresponding cone.
- the conical surfaces can be pressed together using the clamping head or tie rod.
- the invention is based on the object of creating a play-free straightening roller fastening on a cylindrical straightening pin, with the simplest fastening means.
- roller bushing cylindrically and to provide it with radial slots evenly distributed over the circumference, which extend in the longitudinal direction of the roller bushing in the region of the straightening roller.
- the bracing force acting between the roller sleeve and the straightening roller is simultaneously transmitted to the straightening pin of the straightening roller machine, namely in that the webs of the roller sleeve remaining between the slots move radially inwards.
- This ensures a non-rotatable connection with the roller sleeve and the straightening roller arranged on it due to the non-positive connection of roller sleeve webs and straightening pins.
- the present invention not only allows a secure tensioning of the straightening rollers on the straightening pins of the machines with the simplest means, it also offers the advantage of inexpensive retrofitting of older machines which are equipped with cylindrical straightening pins so that they can also be enjoyed clearance rolls built without play come. This can also significantly improve the judging results of old machines.
- the old roller bushes can often be used, which only need to be slotted in the sense of the invention.
- the basic idea of the present invention is that an additional fastening of the roller bushing on the straightening pin can be dispensed with in that the clamping sleeve tensioning provided for the straightening roller fastening on the roller bushing is simultaneously used. With just a single fastener, all components can be fixed.
- a clamping nut 2 is arranged on the roller bushing 1 and pushes two conical clamping elements 7 into one another via the spacer sleeve 4, the straightening discs 5 and the spacer rings 6.
- radial forces are exerted on the straightening roller 3 and the roller bushing 1.
- the roller bushing 1 is slit radially several times in the region of the straightening roller (FIG. 2).
- the webs 8 formed in this way are capable of bending and are pressed against the directional pin 9 by the radial forces generated by the clamping elements 7. This creates a frictional connection between straightening roller 3 and straightening pin 9, which clamps the roller bushing 1 so that neither an additional fastening system against displacement in the axial direction nor feather keys are required to transmit the torques.
- the side windows 5 effect the guidance of the straightening material in the axial direction in a known manner.
- the ring piston 10 in the clamping nut 2 is pressurized by means of an electrically operated, mobile hydraulic pump via a hose.
- the annular piston 10 presses against the spacer sleeve 4 and pushes the conical clamping elements 7 into one another via side disks 5 and spacer rings 6 against an abutment in the form of a collar on the roller bushing, so that these are spread apart.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
Description
Die Erfindung betrifft eine Rollenbefestigung für Richtrollenmaschinen mit einer auf einem Richtzapfen angeordneten Rollenbüchse, auf der die Richtrolle mittels einer auf der Rollenbüchse verstellbaren Spannmutter verspannbar ist, wobei eine die Rollenbüchse umgreifende Distanzhülse einerseits an der Spannmutter stirnseitig anliegt und andererseits auf zwei zwischen Richtrolle und Rollenbüchse angeordnete konische Spannhülsen mit aneinanderliegenden Konusflächen einwirkt, die beim Axialbewegen der Spannhülsen eine radiale Verspannung der Richtrolle bewirken.The invention relates to a roller fastening for straightening roller machines with a roller bushing arranged on a straightening pin, on which the straightening roller can be clamped by means of a tension nut adjustable on the roller bushing acts conical clamping sleeves with adjacent conical surfaces, which cause a radial tensioning of the straightening roller when the clamping sleeves move axially.
Die bekannte Rollenbefestigung (DE 36 03 371 A1) hat einen am freien Ende der drehbaren Rollenachse befindlichen hydraulisch betätigten Spannkopf, der mit einem in einer zentralen Bohrung der Rollenachse angeordneten, sich in dieser abstützenden Zuganker verbunden ist, wobei der Ringkolben des Spannkopfes sich an der Stirnfläche der Rollenachse abstützt und die die Richtrolle aufnehmende Rollenbüchse mittels eines mit dem Spannkopf zusammenwirkenden Bajonettringes gegen einen Bund auf der Rollenachse verspannt. Um die Verbindung zwischen Richtzapfen und Rollenbüchse spielfrei zu gestalten und gleichzeitig eine erhebliche Verkürzung der Richtrollenwechselzeiten zu ermöglichen, ist der Richtzapfen zumindest auf einer Teillänge zum Spannkopf hin konisch verjüngt und die Innenfläche der Rollenbüchse ist mit einem entsprechenden Konus versehen. Die Konusflächen sind mit Hilfe des Spannkopfes bzw. Zugankers aufeinanderpressbar.The known roller attachment (DE 36 03 371 A1) has a hydraulically operated clamping head located at the free end of the rotatable roller axis, which is connected to a tension rod arranged in a central bore of the roller axis and supported in it, the annular piston of the clamping head being attached to the End face of the roller axis is supported and the roller sleeve receiving the straightening roller is braced against a collar on the roller axis by means of a bayonet ring which interacts with the clamping head. In order to make the connection between the straightening pin and roller bushing free of play and at the same time to allow a considerable reduction in the straightening roller changing times, the straightening pin is tapered at least over a partial length towards the clamping head and the inside surface of the roller bushing is provided with a corresponding cone. The conical surfaces can be pressed together using the clamping head or tie rod.
Diese Befestigungsart ist zwar hinsichtlich der Richtrollenwechselzeiten und der Spielfreiheit sehr gut, doch setzt die Anwendung der bekannten Lösung eine aufwendige Fertigung voraus, weil die Funktiionsfähigkeit der spielfreien Verspannung von den Toleranzen zwischen Rollenbüchse und Richtzapfen abhängig ist. Eine Richtrollenmaschine der bekannten Art muß mit besonderen Meß- und Steuergeräten ausgerüstet sein, damit alle Richtrollen nach dem Einbau in eine einheitliche Flucht gebracht werden können. Ein besonderer Nachteil der bekannten Lösung ist es, daß die Anwendung der Richtrollenbefestigung nachträglich bei älteren Maschinen mit zylindrischen Richtzapfen nicht oder nur mit erheblichem Aufwand möglich ist.This type of fastening is very good in terms of straightening roller changing times and freedom from play, but the use of the known solution requires complex production, because the functionality of the play-free bracing of the tolerances between the roller bush and the guide pin. A straightening roller machine of the known type must be equipped with special measuring and control devices so that all straightening rollers can be brought into a uniform alignment after installation. A particular disadvantage of the known solution is that the use of the straightening roller attachment is not possible or can only be done with considerable effort in older machines with cylindrical straightening pins.
Der Erfindung liegt ausgehend von der bekannten Lösung die Aufgabe zugrunde, eine spielfreie Richtrollenbefestigung auf einem zylindrischen Richtzapfen zu schaffen, und zwar mit einfachsten Befestigungsmitteln.Based on the known solution, the invention is based on the object of creating a play-free straightening roller fastening on a cylindrical straightening pin, with the simplest fastening means.
Zur Lösung der Aufgabe wird vorgeschlagen, die Rollenbüchse zylindrisch auszubilden und mit auf dem Umfang gleichmäßig verteilten radialen Schlitzen zu versehen, die sich im Bereich der Richtrolle in Längsrichtung der Rollenbüchse erstrecken.To achieve the object, it is proposed to design the roller bushing cylindrically and to provide it with radial slots evenly distributed over the circumference, which extend in the longitudinal direction of the roller bushing in the region of the straightening roller.
Durch den Vorschlag der Erfindung wird die zwischen Rollenbüchse und Richtrolle wirkende Verspannkraft gleichzeitig auf den Richtzapfen der Richtrollenmaschine übertragen und zwar dadurch, daß die zwischen den Schlitzen verbleibenden Stege der Rollenbüchse sich radial nach innen bewegen. Dadurch wird aufgrund der kraftschlüssigen Verbindung von Rollenbüchsenstegen und Richtzapfen eine drehfeste Verbindung mit der Rollenbüchse und der auf ihr angeordneten Richtrolle gewährleistet.Through the proposal of the invention, the bracing force acting between the roller sleeve and the straightening roller is simultaneously transmitted to the straightening pin of the straightening roller machine, namely in that the webs of the roller sleeve remaining between the slots move radially inwards. This ensures a non-rotatable connection with the roller sleeve and the straightening roller arranged on it due to the non-positive connection of roller sleeve webs and straightening pins.
Ausgestaltungen der Erfindung sind in Unteransprüchen angegeben.Embodiments of the invention are specified in the subclaims.
Die vorliegende Erfindung gestattet in einfacher Weise nicht nur ein sicheres Spannen der Richtrollen auf den Richtzapfen der Maschinen mit einfachsten Mitteln, sie bietet auch den Vorteil, ältere Maschinen, die mit zylindrischen Richtzapfen ausgerüstet sind, kostengünstig so umzurüsten, daß sie auch in den Genuß von spielfrei gebauten Richtrollen kommen. Dadurch lassen sich auch die Richtergebnisse alter Maschinen wesentlich verbessern. Neben den vorhandenen Richtachsen lassen sich vielfach auch die alten Rollenbüchsen weiterverwenden, die im Sinne der Erfindung lediglich geschlitzt zu werden brauchen.The present invention not only allows a secure tensioning of the straightening rollers on the straightening pins of the machines with the simplest means, it also offers the advantage of inexpensive retrofitting of older machines which are equipped with cylindrical straightening pins so that they can also be enjoyed clearance rolls built without play come. This can also significantly improve the judging results of old machines. In addition to the existing directional axes, the old roller bushes can often be used, which only need to be slotted in the sense of the invention.
Der Grundgedanke der vorliegenden Erfindung ist darin zu sehen, daß auf eine zusätzliche Befestigung der Rollenbüchse auf dem Richtzapfen dadurch verzichtet werden kann, daß die für die Richtrollenbefestigung auf der Rollenbüchse vorgesehene Spannhülsenverspannung gleichzeitig mitverwendet wird. Mit nur einem einzigen Befestigungsmittel lassen sich somit alle Bauteile fixieren.The basic idea of the present invention is that an additional fastening of the roller bushing on the straightening pin can be dispensed with in that the clamping sleeve tensioning provided for the straightening roller fastening on the roller bushing is simultaneously used. With just a single fastener, all components can be fixed.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben. Es zeigt:
- Fig. 1 einen schematischen Querschnitt durch den Richtzapfen einer Richtrollenmaschine und
- Fig. 2 einen Segmentguerschnitt durch den Richtzapfen im Bereich der Schlitze in den Rollenbüchsen.
- Fig. 1 shows a schematic cross section through the straightening pin of a straightening roller machine and
- Fig. 2 shows a segment cross section through the straightening pin in the area of the slots in the roller bushes.
Wie in Figur 1 dargesellt ist auf der Rollenbüchse 1 eine Spannmutter 2 angeordnet, die über die Distanzhülse 4, die Richtscheiben 5 und die Distanzringe 6 zwei konische Spannelemente 7 ineinanderschiebt. Hierbei werden radiale Kräfte auf die Richtrolle 3 und die Rollenbüchse 1 ausgeübt.As shown in FIG. 1, a
Die Rollenbüchse 1 ist erfindungsgemäß im Bereich der Richtrolle mehrfach radial geschlitzt (Figur 2). Die hierdurch gebildeten Stege 8 sind biegefähig und werden durch die von den Spannelementen 7 erzeugten radialen Kräfte gegen den Richtzapfen 9 gepreßt. So entsteht ein Kraftschluß zwischen Richtrolle 3 und Richtzapfen 9, der die Rollenbüchse 1 so verspannt, daß weder ein zusätzliches Befestigungssystem gegen Verschieben in axialer Richtung noch Passfedern zur übertragung der Drehmomente erforderlich sind.According to the invention, the roller bushing 1 is slit radially several times in the region of the straightening roller (FIG. 2). The
Die Seitenscheiben 5 bewirken in bekannter Weise eine Führung des Richtgutes in axialer Richtung.The
Die Funktionsweise der Erfindung ist wie folgt zu beschreiben:The operation of the invention can be described as follows:
Nach dem Aufbringen des Richtrollensatzes auf den Richtzapfen 9 der Richtrollenmaschine wird mittels einer elektrisch betriebenen, fahrbaren Hydraulikpumpe über einen Schlauch der Ringkolben 10 in der Spannmutter 2 mit Druck beaufschlagt. Der Ringkolben 10 drückt dabei gegen die Distanzhülse 4 und schiebt die über Seitenscheiben 5 und Distanzringe 6 gegen ein Widerlager in Form eines Bundes an der Rollenbüchse die konischen Spannelemente 7 ineinander, so daß diese gespreizt werden.After the straightening roller set has been applied to the straightening
Nach Erreichen des durch Sicherheitsventil begrenzten Maximaldruckes wird die auf der Distanzhülse 4 angeordnete Kontermutter 11 gegen die Spannmutter 2 gedreht. Jetzt wird der Ringkolben 10 entspannt. Durch Kraftschluß zwischen Spannmutter 2 und Kontermutter 11 bleibt die Spannung im gesamten System erhalten. Hydraulikpumpe mit Schlauch werden entfernt.After the maximum pressure limited by the safety valve has been reached, the
Claims (4)
dadurch gekennzeichnet,
daß die Rollenbüchse (1) zylindrisch ausgebildet und mit auf dem Umfang gleichmäßig verteilten radialen Schlitzen (S) versehen ist, die sich im Bereich der Richtrolle (3) in Längsrichtung der Rollenbüchse (1) erstrecken.1.Roller attachment for straightening roller machines with a roller sleeve arranged on a straightening pin, on which the straightening roller can be clamped by means of a tension nut adjustable on the roller sleeve, with a spacer sleeve encompassing the roller sleeve resting on the face side of the tension nut on the one hand and on the other hand on two conical tensioning sleeves arranged between straightening roller and roller sleeve acts with adjacent conical surfaces, which cause the straightening roller to be braced radially when the clamping sleeves are moved axially,
characterized,
that the roller sleeve (1) is cylindrical and is provided with radial slots (S) which are evenly distributed over the circumference and which extend in the region of the straightening roller (3) in the longitudinal direction of the roller sleeve (1).
dadurch gekennzeichnet,
daß beidseitig der Richtrolle (3) Richtscheiben (5) angeordnet sind, daß die Distanzhülse (4) an einer der Richtscheiben (5) stirnseitig anliegt und daß zwischen den Richtscheiben (5) zwei Distanzringe (6) angeordnet sind, die an den Innenstirnseiten der Richtscheiben (5) anliegend die Spannhülsen (7) zwischen sich aufnehmen, wobei die radiale Erstreckung der Distanzringe (6) kleiner ist als der lichte Abstand zwischen Rollenbüchsenaußenumfang und Richtrolleninnenumfang.2. roller attachment according to claim 1,
characterized,
that on both sides of the straightening roller (3) straightening disks (5) are arranged, that the spacer sleeve (4) abuts on one of the straightening disks (5) and that between the straightening disks (5) two spacer rings (6) are arranged, which are on the inner end faces of the The straightening disks (5) fit the clamping sleeves (7) between them, the radial extent of the spacer rings (6) being smaller than the clear distance between the outer circumference of the roller bushing and the inner circumference of the straightening roller.
dadurch gekennzeichnet,
daß die Spannmutter (2) in an sich bekannter Weise einen zur Stirnseite der Distanzbüchse (4) gerichteten Ringkolben (10) aufweist, der hydraulisch oder pneumatisch betätigbar ist.3. roller attachment according to claim 1 and 2,
characterized,
that the clamping nut (2) has, in a manner known per se, an annular piston (10) which is directed towards the end face of the spacer sleeve (4) and can be actuated hydraulically or pneumatically.
dadurch gekennzeichnet,
daß auf der Distanzhülse (4) eine sich gegen die Spannmutter (2) abstützende Kontermutter (11) angeordnet ist.4. roller attachment according to claim 1 to 3,
characterized,
that on the spacer sleeve (4) against the clamping nut (2) supporting lock nut (11) is arranged.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883825983 DE3825983C1 (en) | 1988-07-27 | 1988-07-27 | |
DE3825983 | 1988-07-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0353179A2 true EP0353179A2 (en) | 1990-01-31 |
EP0353179A3 EP0353179A3 (en) | 1990-11-07 |
EP0353179B1 EP0353179B1 (en) | 1992-08-12 |
Family
ID=6359936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890730153 Expired - Lifetime EP0353179B1 (en) | 1988-07-27 | 1989-06-26 | Roll fastening for roller straightening machines |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0353179B1 (en) |
JP (1) | JPH072249B2 (en) |
DE (1) | DE3825983C1 (en) |
ES (1) | ES2034744T3 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2439329A1 (en) * | 1974-08-16 | 1976-03-04 | Moeller & Neumann Gmbh | DEVICE FOR QUICKLY CHANGING THE LEVELING ROLLERS OF A ROLLER LEVELING MACHINE |
DE8411110U1 (en) * | 1984-04-09 | 1985-08-08 | Kark, Uwe, 2104 Hamburg | Rolling device, consisting of a roll shaft, a roll ring and a conical sleeve |
DE3603371A1 (en) * | 1986-01-31 | 1987-08-06 | Mannesmann Ag | ROLL FASTENING FOR ALIGNING MACHINES |
-
1988
- 1988-07-27 DE DE19883825983 patent/DE3825983C1/de not_active Expired - Fee Related
-
1989
- 1989-06-26 ES ES89730153T patent/ES2034744T3/en not_active Expired - Lifetime
- 1989-06-26 EP EP19890730153 patent/EP0353179B1/en not_active Expired - Lifetime
- 1989-07-26 JP JP19380789A patent/JPH072249B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2439329A1 (en) * | 1974-08-16 | 1976-03-04 | Moeller & Neumann Gmbh | DEVICE FOR QUICKLY CHANGING THE LEVELING ROLLERS OF A ROLLER LEVELING MACHINE |
DE8411110U1 (en) * | 1984-04-09 | 1985-08-08 | Kark, Uwe, 2104 Hamburg | Rolling device, consisting of a roll shaft, a roll ring and a conical sleeve |
DE3603371A1 (en) * | 1986-01-31 | 1987-08-06 | Mannesmann Ag | ROLL FASTENING FOR ALIGNING MACHINES |
Also Published As
Publication number | Publication date |
---|---|
DE3825983C1 (en) | 1990-01-18 |
EP0353179A3 (en) | 1990-11-07 |
JPH072249B2 (en) | 1995-01-18 |
JPH0280119A (en) | 1990-03-20 |
EP0353179B1 (en) | 1992-08-12 |
ES2034744T3 (en) | 1993-04-01 |
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