WO2013010992A1 - Elastomer coupling, method for producing a metallic thrust ring, and device for carrying out the method - Google Patents

Elastomer coupling, method for producing a metallic thrust ring, and device for carrying out the method Download PDF

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Publication number
WO2013010992A1
WO2013010992A1 PCT/EP2012/063911 EP2012063911W WO2013010992A1 WO 2013010992 A1 WO2013010992 A1 WO 2013010992A1 EP 2012063911 W EP2012063911 W EP 2012063911W WO 2013010992 A1 WO2013010992 A1 WO 2013010992A1
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WO
WIPO (PCT)
Prior art keywords
pressure ring
coupling
elastomer
elastomeric
profilings
Prior art date
Application number
PCT/EP2012/063911
Other languages
German (de)
French (fr)
Inventor
Michel GÖHRING
Thomas Kamps
Volker WEGENER
Original Assignee
Gkn Stromag Ag
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Filing date
Publication date
Application filed by Gkn Stromag Ag filed Critical Gkn Stromag Ag
Publication of WO2013010992A1 publication Critical patent/WO2013010992A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
    • F16D2003/745—Tyre type coupling, i.e. bellows with only one fold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0007—Casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0023—Shaping by pressure

Definitions

  • the invention relates to an elastomer coupling with two coupling parts, between which at least one elastomeric body is clamped, wherein at least one coupling part has an axially pressed against a clamping portion of the elastomeric body metallic pressure ring, and a method for producing a metallic pressure ring for such an elastomeric coupling and a device for implementation such a method.
  • Such an elastomer coupling is generally known in the form of a Periflex tire coupling by Stromag AG.
  • a tire is provided, which is connected at its opposite annular edges, each with a metallic coupling part of the elastomer coupling.
  • Each coupling part has a flange body and a pressure ring, wherein the respective annular edge of the elastomeric tire is clamped axially between the flange body and the pressure ring.
  • the object of the invention is to provide an elastomeric coupling, a method for producing a metallic pressure ring and an apparatus for carrying out such a method, which allow by simple means an increase in the torque transmission between the elastomer body and pressure ring.
  • the pressure ring is provided on its the clamping portion facing end face with profilings, which are made together with the production of the pressure ring in a single-stage casting or forging.
  • profilings are already introduced in the production of the pressure ring on the end face of the pressure ring.
  • An additional processing or treatment process of the pressure ring is thereby eliminated. This allows a cost-effective production while at the same time at least equal potential torque transmission.
  • a one-step casting or forging process is a casting or forging process in a suitable tool to understand.
  • the surface roughness achieved by the casting or forging process already represents the surface roughness of the end product of the pressure ring without additional further processing steps.
  • the pressure ring is preferably produced from a steel alloy.
  • Each coupling part preferably consists of an annular flange and the pressure ring as a separate component which is connectable via screw to the annular flange. Due to the screw connections, the pressing force of - -
  • the profilings - relative to a coupling axis of rotation - executed axially positive fit.
  • the profiles are designed such that an increased torque transmission in the circumferential direction of the pressure ring and the elastomer body is achieved.
  • the profilings are designed wave-shaped over the circumference of the pressure ring. This results in distributed over the circumference of the pressure ring alternating elevations and depressions extending along the end face of the pressure ring.
  • the pressure ring has the same degree of roughness both in the area of the profilings and in the region of its other surfaces. The pressure ring therefore no longer requires any further surface treatment after demolding from the corresponding casting or forging tool.
  • both coupling parts each have a pressure ring, which are designed identically to each other.
  • the same tool shape can be used to produce both pressure rings of an elastomer coupling.
  • the object underlying the invention is achieved in that the pressure ring is produced by a casting or forging process, and are introduced together with the production of the pressure ring profilings on an end face of the pressure ring.
  • a casting or forging tool is provided, which is provided in the region of an end face of the pressure ring to be produced with counter-profiles designed to be complementary to the profiles.
  • the casting or forging tool preferably forms a tool mold in which the counterprofiles are formed.
  • the complementary design of the counterprofiles inevitably creates in the production of the pressure ring the desired profiles in the region of the end face of the pressure ring.
  • Fig. 1 shows in perspective and partially cutaway view of an embodiment of an elastomeric coupling according to the invention
  • FIG. 2 is a perspective view of a pressure ring for the elastomeric coupling according to the invention according to FIG. 1.
  • An elastomeric coupling 1 according to FIG. 1 has two coupling parts 2a, 2b made of steel, which define a first and a second coupling side.
  • the two axially - on a coupling axis of rotation relative to each other - spaced coupling parts 2a, 2b are connected by a tire-shaped elastomeric body 3 together transmitting torque.
  • Both coupling parts are designed essentially mirror-symmetrical to each other and each designed in two parts.
  • Each coupling part 2a, 2b has an annular flange provided with a coupling hub, which is radially outwardly extending relative to the coupling rotational axis.
  • Each annular flange is assigned a pressure ring 5.
  • the tire-shaped elastomeric body 3 has at its opposite side edges in each case a peripheral clamping section 4, which is positioned in the assembled state of the elastomer coupling 1 axially between the annular flange of the corresponding coupling part 2a, 2b and the associated pressure ring 5.
  • Each pressure ring 5 has one of the side edge and thus the clamping portion 4 of the tire-shaped E lastomer stressess 3 facing end face 6.
  • the circumferentially annular web-shaped end face 6 is provided with wave-shaped profiles 7 which, according to the illustrations according to FIGS. 1 and 2, are designed to be evenly raised and recessed in the circumferential direction.
  • the profiling 7 result in addition to a frictional connection, which takes place by pressing the pressure ring 5 against the clamping section 4, an a-axial positive engagement and increase the torque transmission between the coupling parts 2 a, 2 b and the elastomer body.
  • the opposite side edges of the tire-shaped elastomer body 3 are provided in the region of the clamping sections 4 with an annular groove into which the annular web-shaped end face 6 of each pressure ring 5 is inserted in the assembled state (see FIG. 1).
  • the profiles 7 of the end face 6 of the pressure ring 5 are designed such that in the axial direction hump-shaped elevations arise which are distributed uniformly over the circumference of the pressure ring 5 (see FIG. 2).
  • Each pressure ring 5 is connected by means of screw axially with the associated annular flange of the respective coupling part 2a, 2b. The position of the screw is indicated in Fig. 1 by axial bores 8.
  • Each pressure ring 5 is manufactured by means of a suitable casting or forging tool in a casting or forging process as a one-piece metallic component, preferably of a steel or an aluminum alloy.
  • a tool shape of the corresponding forging or casting tool is designed such that already in the production of the respective pressure ring 5, the profilings - - be pronounced with.
  • a subsequent surface treatment of the end face 6 in a further process process thereby eliminated.
  • the tool shape of the casting or forging tool is provided in the region of the end face of the pressure ring to be produced with counterprofiles, which are designed to be complementary to the profiles 7 of the pressure ring. As a result, the wave-shaped profiles 7 are inevitably created in the manufacture of the pressure ring 5.
  • the surface roughness in the area of the profilings 7 and the end face 6 of the pressure ring 5 corresponds to the surface roughness of the pressure ring 5 after removal from the casting or forging tool. Subsequent processing of the surface of the pressure ring 5 is not necessary.
  • Each pressure ring 5 can already be used after the casting or forging process without additional surface processing steps for clamping a corresponding tire-shaped elastomer body 3 between two coupling parts 2a, 2b.
  • the positive profiling 7 in conjunction with the achieved by the casting or forging surface roughness of each pressure ring 5 ensure after assembly in the region of the respective annular flange of the associated coupling part 2a, 2b, a high torque transmission, the elastomer couplings according to the prior art at most by subsequent processing steps the surface of a pressure ring can be achieved.

Abstract

• 1. An elastomer coupling having two coupling parts, a method for producing a thrust ring for an elastomer coupling of this type, and a device for carrying out said method. • 2.1 An elastomer coupling, in which at least one elastomer body is clamped, wherein at least one coupling part has a metallic thrust ring which is pressed axially against a clamping section of the elastomer body, is known. • 2.2. According to the invention, the thrust ring is provided with profiles on the front face thereof which faces the clamping section, which profiles are produced together with the production of the thrust ring in a single-stage casting or forging operation. • 2.3 Use for the transmission of torque in ship drives.

Description

Beschreibung  description
Elastomerkupplung, Verfahren zur Herstellung eines metallischen Druckringes und Vorrichtung zur Durchführung des Verfahrens Elastomer coupling, method for producing a metallic pressure ring and apparatus for carrying out the method
Die Erfindung betrifft eine Elastomerkupplung mit zwei Kupplungsteilen, zwischen denen wenigstens ein Elastomerkörper eingespannt ist, wobei wenigstens ein Kupplungsteil einen axial gegen einen Einspannabschnitt des Elastomerkörpers gepressten metallischen Druckring aufweist, sowie ein Verfahren zur Herstellung eines metallischen Druckringes für eine derartige Elastomerkupplung und eine Vorrichtung zur Durchführung eines derartigen Verfahrens. The invention relates to an elastomer coupling with two coupling parts, between which at least one elastomeric body is clamped, wherein at least one coupling part has an axially pressed against a clamping portion of the elastomeric body metallic pressure ring, and a method for producing a metallic pressure ring for such an elastomeric coupling and a device for implementation such a method.
Eine derartige Elastomerkupplung ist in Form einer Periflex-Reifen- kupplung durch die Firma Stromag AG allgemein bekannt. Als Elastomerkörper ist ein Reifen vorgesehen, der an seinen gegenüberliegenden Ringflanken mit jeweils einem metallischen Kupplungsteil der Elastomerkupplung verbunden ist. Jeder Kupplungsteil weist einen Flanschkörper sowie einen Druckring auf, wobei die jeweilige Ringflanke des Elastomerreifens zwischen dem Flanschkörper und dem Druckring axial eingespannt wird. Zur Erhöhung einer Drehmomentübertragung zwischen den Kupplungsteilen und dem als Reifen gestalteten Elastomer- - - körper sind die Druckringe im Bereich ihrer dem Elastomerreifen zugewandten Stirnfläche durch ein Rauspritzverfahren behandelt, um einen erhöhten Reibschluss im Bereich der Stirnfläche des jeweiligen Druckringes zu erzielen. Such an elastomer coupling is generally known in the form of a Periflex tire coupling by Stromag AG. As the elastomer body, a tire is provided, which is connected at its opposite annular edges, each with a metallic coupling part of the elastomer coupling. Each coupling part has a flange body and a pressure ring, wherein the respective annular edge of the elastomeric tire is clamped axially between the flange body and the pressure ring. To increase torque transfer between the coupling parts and the elastomeric tire - - Body are the pressure rings in the region of the elastomeric tire facing end surface treated by a Rauspritzverfahren to achieve increased frictional engagement in the region of the end face of the respective pressure ring.
Aufgabe der Erfindung ist es, eine Elastomerkupplung, ein Verfahren zur Herstellung eines metallischen Druckringes sowie eine Vorrichtung zur Durchführung eines derartigen Verfahrens zu schaffen, die mit einfachen Mitteln eine Erhöhung der Drehmomentübertragung zwischen Elastomerkörper und Druckring ermöglichen. The object of the invention is to provide an elastomeric coupling, a method for producing a metallic pressure ring and an apparatus for carrying out such a method, which allow by simple means an increase in the torque transmission between the elastomer body and pressure ring.
Diese Aufgabe wird für die Elastomerkupplung dadurch gelöst, dass der Druckring an seiner dem Einspannabschnitt zugewandten Stirnfläche mit Profilierungen versehen ist, die gemeinsam mit der Herstellung des Druckringes in einem einstufigen Guss- oder Schmiedevorgang hergestellt sind. Im Gegensatz zum Stand der Technik, bei dem eine nachträgliche Behandlung der Druckringe erfolgt, werden erfindungsgemäß bereits bei der Herstellung des Druckringes entsprechende Profilierungen an der Stirnfläche des Druckringes mit eingebracht. Ein zusätzlicher Bearbeitungs- oder Behandlungsvorgang des Druckringes entfällt dadurch. Dies ermöglicht eine kostengünstige Herstellung bei gleichzeitig wenigstens gleich großem Potenzial der Drehmomentübertragung. Unter einem einstufigen Guss- oder Schmiedevorgang ist ein Guss- oder Schmiedeverfahren in einem geeigneten Werkzeug zu verstehen. Die durch den Guss- oder Schmiedevorgang erzielte Oberflächenrauheit stellt ohne zusätzliche weitere Bearbeitungsschritte bereits die Oberflächenrauheit des Endproduktes des Druckringes dar. Der Druckring wird vorzugsweise aus einer Stahllegierung hergestellt. Jeder Kupplungsteil besteht vorzugsweise aus einem Ringflansch sowie dem Druckring als separatem Bauteil, das über Schraubverbindungen mit dem Ringflansch verbindbar ist. Durch die Schraubverbindungen kann die Presskraft des - - This object is achieved for the elastomer coupling in that the pressure ring is provided on its the clamping portion facing end face with profilings, which are made together with the production of the pressure ring in a single-stage casting or forging. In contrast to the prior art, in which a subsequent treatment of the pressure rings takes place, according to the invention corresponding profilings are already introduced in the production of the pressure ring on the end face of the pressure ring. An additional processing or treatment process of the pressure ring is thereby eliminated. This allows a cost-effective production while at the same time at least equal potential torque transmission. A one-step casting or forging process is a casting or forging process in a suitable tool to understand. The surface roughness achieved by the casting or forging process already represents the surface roughness of the end product of the pressure ring without additional further processing steps. The pressure ring is preferably produced from a steel alloy. Each coupling part preferably consists of an annular flange and the pressure ring as a separate component which is connectable via screw to the annular flange. Due to the screw connections, the pressing force of - -
Druckringes und damit die Einspannkraft für den entsprechenden Einspannabschnitt des Elastomerkörpers eingestellt werden. Pressure ring and thus the clamping force for the corresponding clamping section of the elastomeric body can be adjusted.
In Ausgestaltung der Erfindung sind die Profilierungen - auf eine Kupplungsdrehachse bezogen - axial formschlüssig ausgeführt. Die Profilierungen sind derart gestaltet, dass eine erhöhte Drehmomentübertragung in Umfangsrichtung des Druckringes und des Elastomerkörpers erzielt wird. In an embodiment of the invention, the profilings - relative to a coupling axis of rotation - executed axially positive fit. The profiles are designed such that an increased torque transmission in the circumferential direction of the pressure ring and the elastomer body is achieved.
In weiterer Ausgestaltung der Erfindung sind die Profilierungen wellenförmig über den Umfang des Druckringes gestaltet. Dadurch ergeben sich über den Umfang des Druckringes verteilt alternierende Erhebungen und Vertiefungen, die entlang der Stirnfläche des Druckringes verlaufen. In a further embodiment of the invention, the profilings are designed wave-shaped over the circumference of the pressure ring. This results in distributed over the circumference of the pressure ring alternating elevations and depressions extending along the end face of the pressure ring.
In weiterer Ausgestaltung der Erfindung weist der Druckring sowohl im Bereich der Profilierungen als auch im Bereich seiner übrigen Oberflächen den gleichen Rauheitsgrad auf. Der Druckring benötigt dadurch nach der Entformung aus dem entsprechenden Guss- oder Schmiedewerkzeug keine weitere Oberflächenbehandlung mehr. In a further embodiment of the invention, the pressure ring has the same degree of roughness both in the area of the profilings and in the region of its other surfaces. The pressure ring therefore no longer requires any further surface treatment after demolding from the corresponding casting or forging tool.
In weiterer Ausgestaltung der Erfindung weisen beide Kupplungsteile jeweils einen Druckring auf, die identisch zueinander gestaltet sind. Dadurch kann dieselbe Werkzeugform zur Herstellung beider Druckringe einer Elastomerkupplung eingesetzt werden. In a further embodiment of the invention, both coupling parts each have a pressure ring, which are designed identically to each other. As a result, the same tool shape can be used to produce both pressure rings of an elastomer coupling.
Für das Verfahren zur Herstellung eines metallischen Druckringes wird die der Erfindung zugrundeliegende Aufgabe dadurch gelöst, dass der Druckring durch einen Guss- oder Schmiedevorgang hergestellt wird, und gemeinsam mit der Herstellung des Druckringes Profilierungen an einer Stirnfläche des Druckringes eingebracht werden. - - For the method for producing a metallic pressure ring, the object underlying the invention is achieved in that the pressure ring is produced by a casting or forging process, and are introduced together with the production of the pressure ring profilings on an end face of the pressure ring. - -
Für die Vorrichtung zur Durchführung des Verfahrens ist ein Guss- oder Schmiedewerkzeug vorgesehen, das im Bereich einer Stirnfläche des herzustellenden Druckringes mit komplementär zu den Profilierungen gestalteten Gegenprofilierungen versehen ist. Das Guss- oder Schmiedewerkzeug bildet vorzugsweise eine Werkzeugform, in der die Gegenprofilierungen ausgebildet sind. Die komplementäre Ausführung der Gegenprofilierungen schafft zwangsläufig bei der Herstellung des Druckringes die gewünschten Profilierungen im Bereich der Stirnfläche des Druckringes. For the apparatus for carrying out the method, a casting or forging tool is provided, which is provided in the region of an end face of the pressure ring to be produced with counter-profiles designed to be complementary to the profiles. The casting or forging tool preferably forms a tool mold in which the counterprofiles are formed. The complementary design of the counterprofiles inevitably creates in the production of the pressure ring the desired profiles in the region of the end face of the pressure ring.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen sowie aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung, das anhand der Zeichnungen dargestellt ist. Further advantages and features of the invention will become apparent from the claims and from the following description of a preferred embodiment of the invention, which is illustrated by the drawings.
Fig. 1 zeigt in perspektivischer und teilweise aufgeschnittener Darstellung eine Ausführungsform einer erfindungsgemäßen Elastomerkupplung und Fig. 1 shows in perspective and partially cutaway view of an embodiment of an elastomeric coupling according to the invention and
Fig. 2 in perspektivischer Darstellung einen Druckring für die erfindungsgemäße Elastomerkupplung nach Fig. 1 . 2 is a perspective view of a pressure ring for the elastomeric coupling according to the invention according to FIG. 1.
Eine Elastomerkupplung 1 nach Fig. 1 weist zwei aus Stahl bestehende Kupplungsteile 2a, 2b auf, die eine erste und eine zweite Kupplungsseite definieren. Die beiden axial - auf eine Kupplungsdrehachse bezogen - zueinander beabstandeten Kupplungsteile 2a, 2b sind durch einen reifenförmigen Elastomerkörper 3 miteinander Drehmoment übertragend verbunden. Beide Kupplungsteile sind im Wesentlichen spiegelsymmetrisch zueinander gestaltet und jeweils zweiteilig ausgeführt. Jeder Kupplungsteil 2a, 2b weist einen mit einer Kupplungsnabe versehenen Ringflansch auf, der - relativ zur Kupplungsdrehachse - radial nach außen erstreckt ist. Jedem Ringflansch ist ein Druckring 5 zugeordnet. - - An elastomeric coupling 1 according to FIG. 1 has two coupling parts 2a, 2b made of steel, which define a first and a second coupling side. The two axially - on a coupling axis of rotation relative to each other - spaced coupling parts 2a, 2b are connected by a tire-shaped elastomeric body 3 together transmitting torque. Both coupling parts are designed essentially mirror-symmetrical to each other and each designed in two parts. Each coupling part 2a, 2b has an annular flange provided with a coupling hub, which is radially outwardly extending relative to the coupling rotational axis. Each annular flange is assigned a pressure ring 5. - -
Der reifenförmige Elastomerkörper 3 weist an seinen gegenüberliegenden Seitenflanken jeweils einen umlaufenden Einspannabschnitt 4 auf, der in montiertem Zustand der Elastomerkupplung 1 axial zwischen dem Ringflansch des entsprechenden Kupplungsteiles 2a, 2b und dem zugeordneten Druckring 5 positioniert ist. Jeder Druckring 5 weist eine der Seitenflanke und damit dem Einspannabschnitt 4 des reifenförmigen E- lastomerkörpers 3 zugewandte Stirnfläche 6 auf. Die umlaufend ring- stegförmige Stirnfläche 6 ist mit wellenförmigen Profilierungen 7 versehen, die gemäß den Darstellungen nach den Fig. 1 und 2 in Umfangs- richtung gleichmäßig erhaben und vertieft ausgeführt sind. Die Profilierungen 7 ergeben zusätzlich zu einem Kraftschluss, der durch ein Pressen des Druckringes 5 gegen den Einspannabschnitt 4 erfolgt, einen a- xialen Formschluss und erhöhen die Drehmomentübertragung zwischen den Kupplungsteilen 2a, 2b und dem Elastomerkörper 3. The tire-shaped elastomeric body 3 has at its opposite side edges in each case a peripheral clamping section 4, which is positioned in the assembled state of the elastomer coupling 1 axially between the annular flange of the corresponding coupling part 2a, 2b and the associated pressure ring 5. Each pressure ring 5 has one of the side edge and thus the clamping portion 4 of the tire-shaped E lastomerkörpers 3 facing end face 6. The circumferentially annular web-shaped end face 6 is provided with wave-shaped profiles 7 which, according to the illustrations according to FIGS. 1 and 2, are designed to be evenly raised and recessed in the circumferential direction. The profiling 7 result in addition to a frictional connection, which takes place by pressing the pressure ring 5 against the clamping section 4, an a-axial positive engagement and increase the torque transmission between the coupling parts 2 a, 2 b and the elastomer body. 3
Die gegenüberliegenden Seitenflanken des reifenförmigen Elastomerkörpers 3 sind im Bereich der Einspannabschnitte 4 mit einer Ringnut versehen, in die die ringstegförmige Stirnfläche 6 jedes Druckringes 5 in montiertem Zustand eintaucht (siehe Fig. 1 ). Die Profilierungen 7 der Stirnfläche 6 des Druckringes 5 sind derart gestaltet, dass sich in Axialrichtung höckerförmige Erhebungen ergeben, die gleichmäßig über den Umfang des Druckringes 5 verteilt angeordnet sind (siehe Fig. 2). Jeder Druckring 5 ist mit Hilfe von Schraubverbindungen axial mit dem zugehörigen Ringflansch des jeweiligen Kupplungsteiles 2a, 2b verbunden. Die Lage der Schraubverbindungen ist in Fig. 1 durch Axialbohrungen 8 angedeutet. Jeder Druckring 5 wird mittels eines geeigneten Guss- oder Schmiedewerkzeuges in einem Guss- oder Schmiedevorgang als einstückiges metallisches Bauteil, vorzugsweise aus einer Stahl- oder einer Aluminiumlegierung, hergestellt. Eine Werkzeugform des entsprechenden Schmiede- oder Gusswerkzeugs ist derart gestaltet, dass bereits bei der Herstellung des jeweiligen Druckringes 5 die Profilierungen - - mit ausgeprägt werden. Eine nachträgliche Oberflächenbehandlung der Stirnfläche 6 in einem weiteren Verfahrensgang entfällt hierdurch. Die Werkzeugform des Guss- oder Schmiedewerkzeugs ist im Bereich der Stirnfläche des herzustellenden Druckringes mit Gegenprofilierungen versehen, die komplementär zu den Profilierungen 7 des Druckringes gestaltet sind. Dadurch werden beim Herstellen des Druckringes 5 zwangsläufig die wellenförmigen Profilierungen 7 geschaffen. Die Oberflächenrauheit im Bereich der Profilierungen 7 und der Stirnfläche 6 des Druckringes 5 entspricht der Oberflächenrauheit des Druckringes 5 nach der Entformung aus dem Guss- oder Schmiedewerkzeug. Eine nachträgliche Bearbeitung der Oberfläche des Druckringes 5 ist nicht notwendig. Jeder Druckring 5 ist bereits nach dem Guss- oder Schmiedevorgang ohne zusätzliche Oberflächenbearbeitungsschritte zur Einspan- nung eines entsprechenden reifenförmigen Elastomerkörpers 3 zwischen zwei Kupplungsteilen 2a, 2b einsetzbar. Die formschlüssigen Profilierungen 7 in Verbindung mit der durch den Guss- oder Schmiedevorgang erzielten Oberflächenrauheit jedes Druckringes 5 gewährleisten nach einer Montage im Bereich des jeweiligen Ringflansches des zugeordneten Kupplungsteiles 2a, 2b eine hohe Drehmomentübertragung, die bei Elastomerkupplungen gemäß dem Stand der Technik allenfalls durch nachträgliche Bearbeitungsschritte der Oberfläche eines Druckringes erzielbar sind. The opposite side edges of the tire-shaped elastomer body 3 are provided in the region of the clamping sections 4 with an annular groove into which the annular web-shaped end face 6 of each pressure ring 5 is inserted in the assembled state (see FIG. 1). The profiles 7 of the end face 6 of the pressure ring 5 are designed such that in the axial direction hump-shaped elevations arise which are distributed uniformly over the circumference of the pressure ring 5 (see FIG. 2). Each pressure ring 5 is connected by means of screw axially with the associated annular flange of the respective coupling part 2a, 2b. The position of the screw is indicated in Fig. 1 by axial bores 8. Each pressure ring 5 is manufactured by means of a suitable casting or forging tool in a casting or forging process as a one-piece metallic component, preferably of a steel or an aluminum alloy. A tool shape of the corresponding forging or casting tool is designed such that already in the production of the respective pressure ring 5, the profilings - - be pronounced with. A subsequent surface treatment of the end face 6 in a further process process thereby eliminated. The tool shape of the casting or forging tool is provided in the region of the end face of the pressure ring to be produced with counterprofiles, which are designed to be complementary to the profiles 7 of the pressure ring. As a result, the wave-shaped profiles 7 are inevitably created in the manufacture of the pressure ring 5. The surface roughness in the area of the profilings 7 and the end face 6 of the pressure ring 5 corresponds to the surface roughness of the pressure ring 5 after removal from the casting or forging tool. Subsequent processing of the surface of the pressure ring 5 is not necessary. Each pressure ring 5 can already be used after the casting or forging process without additional surface processing steps for clamping a corresponding tire-shaped elastomer body 3 between two coupling parts 2a, 2b. The positive profiling 7 in conjunction with the achieved by the casting or forging surface roughness of each pressure ring 5 ensure after assembly in the region of the respective annular flange of the associated coupling part 2a, 2b, a high torque transmission, the elastomer couplings according to the prior art at most by subsequent processing steps the surface of a pressure ring can be achieved.

Claims

Patentansprüche claims
1. Elastomerkupplung mit zwei Kupplungsteilen, zwischen denen wenigstens ein Elastomerkörper eingespannt ist, wobei wenigstens ein Kupplungsteil einen axial gegen einen Einspannabschnitt des Elastomerkörpers gepressten metallischen Druckring aufweist, dadurch gekennzeichnet, dass der Druckring (5) an seiner dem Einspannabschnitt (4) zugewandten Stirnfläche (6) mit Profilierungen (7) versehen ist, die gemeinsam mit der Herstellung des Druckringes (5) in einem einstufigen Guss- oder Schmiedevorgang hergestellt sind. 1. Elastomer coupling with two coupling parts, between which at least one elastomeric body is clamped, wherein at least one coupling part has an axially pressed against a clamping portion of the elastomeric body metallic pressure ring, characterized in that the pressure ring (5) at its the clamping section (4) facing end face ( 6) is provided with profilings (7), which are produced together with the production of the pressure ring (5) in a single-stage casting or forging process.
2. Elastomerkupplung nach Anspruch 1 , dadurch gekennzeichnet, dass die Profilierungen (7) - auf eine Kupplungsdrehachse bezogen - axial formschlüssig ausgeführt sind. 2. elastomeric coupling according to claim 1, characterized in that the profilings (7) - relative to a coupling axis of rotation - are executed axially positively.
3. Elastomerkupplung nach Anspruch 2, dadurch gekennzeichnet, dass die Profilierungen (7) wellenförmig über den Umfang des Druckringes (5) gestaltet sind. 3. elastomeric coupling according to claim 2, characterized in that the profilings (7) are wave-shaped over the circumference of the pressure ring (5) are designed.
4. Elastomerkupplung nach Anspruch 1 , dadurch gekennzeichnet, dass der Druckring (5) sowohl im Bereich der Profilierungen (7) als auch im Bereich seiner übrigen Oberfläche den gleichen Rauheitsgrad aufweist. 4. Elastomer coupling according to claim 1, characterized in that the pressure ring (5) has the same roughness both in the region of the profilings (7) and in the region of its other surface.
5. Elastomerkupplung nach Anspruch 1 , dadurch gekennzeichnet, dass beide Kupplungsteile (2a, 2b) jeweils einen Druckring (5) aufweisen, die identisch zueinander gestaltet sind. 5. elastomeric coupling according to claim 1, characterized in that the two coupling parts (2 a, 2 b) each have a pressure ring (5), which are designed identically to each other.
6. Verfahren zur Herstellung eines metallischen Druckringes für eine Elastomerkupplung nach Anspruch 1 , wobei der Druckring (5) durch einen Guss- oder Schmiedevorgang hergestellt wird und gemeinsam mit der Herstellung des Druckringes (5) Profilierungen (7) an einer Stirnfläche (6) des Druckringes (5) eingebracht werden. 6. A method for producing a metallic pressure ring for an elastomeric coupling according to claim 1, wherein the pressure ring (5) is produced by a casting or forging process, and Profiles (7) on an end face (6) of the pressure ring (5) are introduced together with the production of the pressure ring (5).
7. Vorrichtung zur Durchführung eines Verfahrens nach Anspruch 6 mit einem Guss- oder Schmiedewerkzeug, das im Bereich einer Stirnfläche (6) des herzustellenden Druckringes (5) mit komplementär zu den Profilierungen (7) gestalteten Gegenprofilierungen versehen ist. 7. A device for carrying out a method according to claim 6 with a casting or forging tool, which is provided in the region of an end face (6) of the pressure ring (5) to be produced with complementary to the profilings (7) designed counterprofiles.
PCT/EP2012/063911 2011-07-21 2012-07-16 Elastomer coupling, method for producing a metallic thrust ring, and device for carrying out the method WO2013010992A1 (en)

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EP3263938B1 (en) * 2016-06-29 2020-10-21 Walterscheid GmbH Flexible coupling for agricultural drives

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GB124545A (en) * 1918-02-25 1919-03-25 Simms Motor Units Ltd Improvements in Shaft Couplings.
DE1188384B (en) * 1958-03-31 1965-03-04 Herwarth Reich Dipl Ing Elastic coupling
US3385080A (en) * 1966-04-05 1968-05-28 Gerald T. Sorenson Flexible shaft coupling
US3557574A (en) * 1968-11-25 1971-01-26 Caterpillar Tractor Co Spiral toothed coupling
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WO2005054704A1 (en) * 2003-12-05 2005-06-16 Haldex Brake Products Ab Brake disc

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DE2019911A1 (en) * 1970-04-24 1971-11-04 Stromag Maschf Elastic coupling
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Publication number Priority date Publication date Assignee Title
GB124545A (en) * 1918-02-25 1919-03-25 Simms Motor Units Ltd Improvements in Shaft Couplings.
DE1188384B (en) * 1958-03-31 1965-03-04 Herwarth Reich Dipl Ing Elastic coupling
US3385080A (en) * 1966-04-05 1968-05-28 Gerald T. Sorenson Flexible shaft coupling
US3557574A (en) * 1968-11-25 1971-01-26 Caterpillar Tractor Co Spiral toothed coupling
WO2005054704A1 (en) * 2003-12-05 2005-06-16 Haldex Brake Products Ab Brake disc
DE202004018828U1 (en) * 2004-12-06 2005-02-03 Gerwah Gmbh Forged clamping set

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