DE3446067C1

DE3446067C1 - Device for pulling up transverse ribs

Info

Publication number: DE3446067C1
Application number: DE3446067A
Authority: DE
Inventors: Heinrich Schulenberg; Otto 4630 Bochum Wiße
Original assignee: GEA Luftkuehler GmbH; GEA Luftkuehlergesellschaft Happel GmbH and Co KG
Current assignee: GEA Luftkuehler GmbH; GEA Luftkuehlergesellschaft Happel GmbH and Co KG
Priority date: 1984-12-18
Filing date: 1984-12-18
Publication date: 1986-06-26
Also published as: CN85108831A; UA7213A1; JPS61186120A; ZA859183B; AU576033B2; CN1008515B; IN161728B; YU194185A; AT388517B; ATA350085A; SU1410863A3; AU5075785A

Abstract

In a known process, smooth tubes are provided with transverse ribs by pushing the transverse ribs produced by a punch onto the smooth tubes immediately after said ribs have been stamped. This is accomplished by means of driver chains and drivers which are linked in terms of their drive to the punch drive. In this arrangement, it is the punch-end chain wheels which are driven. However, this arrangement only provides a satisfactory solution in the case of comparatively short tubes. In order to be able to rib long tubes satisfactorily as well, the chain wheels 5 are now driven at the opposite end of the pull-on bench 3 from the punch 1. As a consequence, the transverse ribs are no longer pushed onto the smooth tubes but are now pulled on, guaranteeing satisfactory jerk-free ribbing even of tubes with a length of 15 m and more. <IMAGE>

Description

Besonders vorteilhaft ist es, wenn nach Anspruch 2 die Welle durch ein verwindungssteifes Rohr gebildet ist. It is particularly advantageous if, according to claim 2 the Shaft is formed by a torsion-resistant tube.

Unter Verwendung der Merkmale des Anspruchs 3 wird erreicht, daß die Mitnehmerketten im Bereich der Umlenkkettenräder zusätzlich im Sinne eines exakten Parallellaufs stabilisiert werden. Eine denkbare Versetzung, die sich beim Überlaufen der Umlenkkettenräder zwischen den Mitnehmerketten bilden kann, wird also unmittelbar nach den Umlenkkettenrädern wieder beseitigt. Using the features of claim 3 it is achieved that the driver chains in the area of the deflection sprockets additionally in the sense of an exact Parallel runs are stabilized. A conceivable dislocation that occurs when overflowing the deflection sprockets can form between the driver chains, so is immediately removed again after the deflection sprockets.

Um die Dimensionen der zwischen dem Stanzenantrieb und den Antriebskettenrädern angeordneten Getriebeteile auch bei extrem langen Glattrohren in noch vertretbaren Größenordnungen zu halten, sieht die Erfindung die Merkmale des Anspruchs 4 vor. Die Antriebsenergie des Hilfsantriebs kann beliebig sein. Der Anteil des Hilfsantriebs an der Gesamtantriebsleistung kann bis zu etwa 40% betragen. Dadurch ist ein exakter ruckfreier Anlauf und Gleichlauf der Mitnehmerketten sichergestellt. About the dimensions of the between the punch drive and the drive sprockets arranged gear parts even with extremely long smooth tubes in justifiable To keep orders of magnitude, the invention provides the features of claim 4. The drive energy of the auxiliary drive can be any. The proportion of the auxiliary drive of the total drive power can be up to about 40%. This is an exact Jerk-free start-up and synchronization of the driver chains ensured.

Die Erfindung ist nachfolgend anhand von drei in der Zeichnung veranschaulichten Ausführungsbeispielen näher erläutert. The invention is illustrated below with reference to three in the drawing Embodiments explained in more detail.

Mit 1 ist in den F i g. 1 bis 3 jeweils eine Stanze bezeichnet, die der Erzeugung von geeigneten Querrippen dient. Diese sind nicht näher veranschaulicht. Die Stanze 1 ist mit einem Stanzenantrieb 2 versehen. With 1 is in the F i g. 1 to 3 each denotes a punch that serves to generate suitable transverse ribs. These are not illustrated in more detail. The punch 1 is provided with a punch drive 2.

An die Stanze 1 schließt sich eine Aufziehbank 3 an, auf welcher wenigstens ein Glattrohr, ggf. aber auch mehrere Glattrohre nebeneinander festgelegt werden. The punch 1 is followed by a mounting bench 3 on which at least one smooth tube, but possibly also several smooth tubes set next to one another will.

Die Länge der Glattrohre kann 15 m und mehr betragen. Die Glattrohre sind ebenfalls nicht eingezeichnet.The length of the smooth tubes can be 15 m and more. The smooth tubes are also not shown.

Unterhalb der Glattrohre weist die Aufziehbank 3 zwei im Abstand nebeneinander in vertikalen Ebenen umlaufende Mitnehmerketten 4 mit nicht näher dargestellten Mitnehmern auf. Die Mitnehmerketten 4 erstrecken sich über die gesamte Länge der Aufziehbank 3 und sind endseitig über Antriebskettenräder 5 und Umlenkkettenräder 6 geführt. Insbesondere die Umlenkkettenräder 6 können in Längsrichtung der Aufziehbank 3 verstellbar angeordnet sein, um eine einwandfreie Kettenspannung zu gewährleisten. Below the smooth tubes, the mounting bench 3 has two spaced apart side by side in vertical planes revolving driver chains 4 with no closer shown drivers. The driver chains 4 extend over the entire Length of the draw-up bench 3 and are at the end via drive sprockets 5 and deflection sprockets 6 led. In particular, the deflection sprockets 6 can be in the longitudinal direction of the mounting bench 3 be adjustable to ensure proper chain tension.

Die von den Mitnehmerketten 4 getragenen Mitnehmer nehmen im Bereich der Stanze t die dort anfallenden Querrippen auf, führen sie auf die Glattrohre und schieben sie an den Glattrohren entlang bis zu der vorgesehenen Berippungsposition auf. Dann lösen sich die Mitnehmer von den Querrippen und werden über die Antriebskettenräder 5 zurück zu den Umlenkkettenrädern 6 geführt, wo sie von der Stanze 1 erzeugte neue Querrippen aufnehmen. The carriers carried by the carrier chains 4 take in the area the punch t open the transverse ribs that occur there and guide them onto the smooth tubes and slide them along the smooth tubes up to the intended ribbing position on. Then the drivers detach from the transverse ribs and are over the drive sprockets 5 led back to the deflection sprockets 6, where they produced new ones by the punch 1 Pick up transverse ribs.

Der Antrieb der Mitnehmerketten 4 erfolgt bei allen drei Ausführungsformen unmittelbar vom Stanzenantrieb 2 aus. Zu diesem Zweck ist in der Nähe des Stanzenantriebs 2 ein Kettentrieb 7 mit zwei Kettenrädern 8, 9 und einer Kette 10 vorgesehen, welcher die Antriebsleistung des Stanzenantriebs 2 auf einen Winkeltrieb 11 überträgt. Zwischen dem Winkeltrieb 11 und einem weiteren, am Ende der Aufziehbank 3 angeordneten Winkeltrieb 12 ist ein verwindungssteifes Rohr 13 als Übertragungswelle angeordnet. Das Rohr 13 kann ein- oder mehrfach zwischen den Winkeltrieben 11, 12 gelagert sein. The drive of the driver chains 4 takes place in all three embodiments directly from the punch drive 2. For this purpose it is close to the punch drive 2, a chain drive 7 with two chain wheels 8, 9 and a chain 10 is provided, which transmits the drive power of the punch drive 2 to an angular drive 11. Between the angular drive 11 and a further angular drive arranged at the end of the mounting bench 3 12 a torsion-resistant tube 13 is arranged as a transmission shaft. The pipe 13 can be mounted one or more times between the angle drives 11, 12.

Ferner trifft für alle Ausführungsformen der F i g. 1 bis 3 zu, daß zwischen den Winkeltrieb 12 und die Antriebskettenräder 5 eine Kupplung 14 eingegliedert ist, welche es bei Einricht-, Wartungs- oder Reparaturarbeiten ermöglicht, den Stanzenantrieb 2 von den Mit- nehmerketten 4 abzukoppeln. Furthermore, applies to all embodiments of FIG. 1 to 3 to that A coupling 14 is incorporated between the angular drive 12 and the drive sprockets 5 which enables the punch drive for setup, maintenance or repair work 2 of the co- Disconnect slave chains 4.

Bei der Ausführungsform der F i g. 1 sind die Mitnehmerketten 4 ausschließlich über die endseitigen Antriebskettenräder 5 und Umlenkkettenräder 6 geführt. In the embodiment of FIG. 1, the driver chains 4 are exclusive guided over the end drive sprockets 5 and deflection sprockets 6.

Im Falle der Ausführungsform der F i g. 2 sind im geringen Abstand zu den Umlenkkettenrädern 6 zwei weitere Kettenräder 15 vorgesehen, die nicht angetrieben sind. Die Kettenräder 15 sind jedoch drehfest miteinander verbunden. Sie haben die Aufgabe, etwaige Kettenversetzungen, bedingt z. B. durch den Überlauf über die Umlenkkettenräder 6, wieder zu beseitigen und einen einwandfreien Parallellauf herzustellen. In the case of the embodiment of FIG. 2 are at a short distance to the deflection sprockets 6 two further sprockets 15 are provided, which are not driven are. The chain wheels 15 are, however, connected to one another in a rotationally fixed manner. You have the Task, any chain dislocations, conditioned z. B. by the overflow over the deflection sprockets 6, to be eliminated again and to establish a perfect parallel operation.

Was die Ausführungsform der F i g. 3 anlangt, so sind in der Nähe der Antriebskettenräder 5 zwei weitere Antriebskettenräder 16 vorgesehen, die durch einen Hilfsantrieb 17 beaufschlagt werden, der unabhängig von dem Getriebezug 7 - 14 ist. Durch den Hilfsantrieb 17 können etwa 40% der Gesamtantriebsleistung zur Erzielung eines exakten ruckfreien Anlaufs und auch Gleichlaufs der Mitnehmerketten 4 erbracht werden. As for the embodiment of FIG. 3 arrives, they are near of the drive sprockets 5 two further drive sprockets 16 are provided by an auxiliary drive 17, which is independent of the gear train 7 - 14 is. Through the auxiliary drive 17, about 40% of the total drive power can be used Achieving an exact, jerk-free start-up and also synchronization of the driver chains 4 can be provided.

Selbstverständlich ist es auch bei der Ausführungsform der F i g. 3 möglich, Kettenräder 15 gemäß F i g. 2 zwecks Erzielung eines einwandfreien Parallellaufs vorzusehen. It goes without saying that it is also the case in the embodiment of FIG. 3 possible, chain wheels 15 according to FIG. 2 in order to achieve perfect parallel operation to be provided.

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Claims

Claims: 1. Device for pulling transverse ribs onto smooth tubes, the one punch producing the transverse ribs and one the smooth tubes to be ribbed includes supporting mounting bench, which a directly from the punch drive through thereby driven sprockets moving carrier chain assembly with at least two im Distance side by side, continuously revolving, end-guided driver chains has, whose drivers take up the resulting transverse ribs in time with the punch and from the end face facing the punch continuously one after the other in Slide lengthways onto the smooth tubes, marked by the fact that the driver chains (4) are driven by the chain wheels (5), which are located on the punch (1) facing away from the end of the mounting bench (3), the loading of the sprockets (5) via a plane extending parallel to the plane of rotation of the driver chains (4) Shaft (13) and one between the drive sprockets (5) and the adjacent one End of the shaft (13) provided coupling (14) takes place.

2. Apparatus according to claim 1, characterized in that the shaft (13) is formed by a torsion-resistant tube.

3. Apparatus according to claim 1 or 2, characterized in that the driver chains (4) as well as via the deflection chain wheels (6) on the punch side still guided over two rigidly connected, non-powered chain wheels (15) which are located at a short distance from the deflection sprockets (6).

4. Device according to one of claims 1 to 3, characterized in that that adjacent to the drive sprockets (5) two more by an independent Auxiliary drive (17) acted upon drive sprockets (16) in the driver chains (4) are incorporated.

The invention is directed to a device for pulling up Transverse ribs on smooth tubes according to the features in the preamble of claim 1.

When pulling transverse ribs onto smooth tubes, the punch generated transverse ribs immediately after their embossing of the in the driver chains incorporated drivers and pushed onto the smooth tubes. Here up to ten smooth tubes can be ribbed side by side at the same time.

The cross-section of the smooth tubes is arbitrary.

The device of the generic type is used to drive the driver chains the punch drive is used. In order to achieve the necessary synchronization here, has been the geared connection between the punch drive and the driver chains kept as short as possible, d. H. the sprockets on the punch-side end of the mounting bench. The drivers and thus also the transverse ribs are thereby moved, so to speak, pushing along the pipes to be finned. These Procedure has been satisfactory in practice as long as it is still comparatively short smooth tubes with lengths of up to about 5 m. For straight tubes over 5 m length on the other hand, the longer the length increases, there are more irregularities in the Coordination of the movements of the punch and the movements of the driver chains. The driver chains are no longer driven evenly. The result is a restless one Run so that proper ribbing as a prerequisite for the subsequent Galvanizing can no longer be carried out.

The invention is based on the object in the preamble of Claim 1 described device with moving derived from the punch drive To improve driver chains so that a perfect ribbing is ensured even then is when smooth tubes with lengths of 15 m or more are to be ribbed.

The solution to this problem is according to the invention in the characterizing Part of claim 1 listed features.

In this arrangement it has surprisingly been found that despite the possibly considerable distance between the punch drive and the drive sprockets at the end of the mounting bench facing away from the punch, perfect ribbing is achieved will. The cause is essentially the fact that the driver chains are now to be pulled. Any minor games no longer lead to a restless one Run of the driver chains and also not to a jerky sliding of the driver on the straight tubes or along the straight tubes. The transverse ribs are after their imprint perfectly picked up by the drivers and jerk-free on the smooth tubes pushed.

It is particularly noteworthy that these are chain weights can act from 2 t and more. Irregularities in the coordination of the movements the punch to that of the driver chains are no longer observed. The rib picture is uniform and thus leads to a perfect finish after galvanizing Finned tube quality. This in turn has the advantage that finned tubes provide high heat transfer rates as heat exchanger tubes. The inventive This arrangement allows up to about ten smooth tubes with lengths of 15 m or more at the same time to be flawlessly ribbed. The transmission of the drive power from the punch drive to the drive sprockets of the mounting bench can be of various types Way to be effected.

There are mechanical, hydraulic or electrical transmission options conceivable. There are also fewer signs of wear on slideways and driver chains and ball bearings.

The shaft according to the invention can, for example, between two ends of the Be incorporated into the winding bench arranged angle drives. She makes sure that the stamping cycle of the punch flawlessly with the one receiving the punched transverse ribs Carrier is matched.

In another known device (DE-OS 29 21 416) are although those sprockets are also driven for the movement of the driver chains, which are arranged at the end of the mounting bench facing away from the punch, but takes place there this drive by special motors arranged in the same place, whereby this prior art teaches nothing about how, if applicable, or whether, if applicable, the motor drive should or could be synchronized with the punch drive or derived. This The state of the art could therefore not give any indication, as in the case of the generic one Device to solve the aforementioned problem.