DE10360288A1 - Mechanical tensioning device for traction means with directional friction damping - Google Patents
Mechanical tensioning device for traction means with directional friction damping Download PDFInfo
- Publication number
- DE10360288A1 DE10360288A1 DE2003160288 DE10360288A DE10360288A1 DE 10360288 A1 DE10360288 A1 DE 10360288A1 DE 2003160288 DE2003160288 DE 2003160288 DE 10360288 A DE10360288 A DE 10360288A DE 10360288 A1 DE10360288 A1 DE 10360288A1
- Authority
- DE
- Germany
- Prior art keywords
- piston rod
- cylinder
- friction
- cone
- friction element
- 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.)
- Withdrawn
Links
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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0831—Means for varying tension of belts, ropes, or chains with vibration damping means of the dry friction type
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H2007/084—Means for varying tension of belts, ropes, or chains with vibration damping means having vibration damping characteristics dependent on the moving direction of the tensioner
Abstract
Mechanische Spannvorrichtung für Zugmittel, insbesondere für eine Kette, mit gerichteter Reibdämpfung, mit einem in einem Zylinder gegen die Wirkung von Reibungskräften verschiebbaren Reibelement mit einer zentralen von seiner einen Stirnseite ausgehenden konischen Ausnehmung, in die ein mit einer Kolbenstange verbundener entsprechend geformter Spannkonus eingreift, wobei der Reibungskolben durch eine innere Druckfeder am Zylinder entgegen der Einfahrbewegung der Kolbenstange in den Zylinder abgestützt ist, dadurch gekennzeichnet, dass der Zylinder (1) mit einem in Einfahrrichtung der Kolbenstange (4) sich verjüngenden Innenkonus (8) versehen ist, an dem das Reibelement außenseitig mit einem entsprechenden Außenkonus (9) anliegt, derart, dass das Reibelement (5) sich beim Einfedern der Kolbenstange (4) weiter als diese bewegt.mechanical Clamping device for Traction means, in particular for a chain, with directional friction damping, with one in one Cylinder against the action of frictional forces sliding friction element with a central conical starting from its one end face Recess, in which a connected to a piston rod accordingly molded clamping cone engages, wherein the friction piston by a inner compression spring on the cylinder against the retraction movement of the piston rod supported in the cylinder is, characterized in that the cylinder (1) with an in Retraction of the piston rod (4) tapered inner cone (8) provided is, on which the friction element with the outside a corresponding outer cone (9) is applied, such that the friction element (5) during compression the piston rod (4) continues to move as this.
Description
Gebiet der ErfindungTerritory of invention
Die Erfindung bezieht sich auf eine mechanische Spannvorrichtung für Zugmittel, insbesondere für eine Kette, mit gerichteter Reibdämpfung, mit einem in einem Zylinder gegen die Wirkung von Reibungskräften verschiebbaren Reibelement mit einer zentralen von seiner einen Stirnseite ausgehenden konischen Ausnehmung, in die ein mit einer Kolbenstange verbundener entsprechend geformter Spannkonus eingreift, wobei der Reibungskolben durch eine innere Druckfeder am Zylinder entgegen der Einfahrbewegung der Kolbenstange in den Zylinder abgestützt ist.The The invention relates to a mechanical tensioning device for traction means, especially for a chain, with directional friction damping, with one in one Cylinder against the action of frictional forces sliding friction element with a central conical starting from its one end face Recess, in which a connected to a piston rod accordingly molded clamping cone engages, wherein the friction piston by a inner compression spring on the cylinder against the retraction movement of the piston rod supported in the cylinder is.
Derartige
mechanische Spannvorrichtungen sind bereits bekannt. Wir verweisen
hierzu beispielsweise auf die
Die vorbekannte mechanische Spannvorrichtung der eingangs beschriebenen Art ist speziell als Riemenspannvorrichtung ausgelegt, bei der sehr hohe Spannkräfte erforderlich sind, weshalb neben der inneren Vorspannfeder für das Reibelement noch eine äußere Vorspannfeder zwischen Zylinder und Kolbenstange vorgesehen ist, die die eigentliche Vorspannkraft für den Riemen aufbringt.The previously known mechanical tensioning device of the type described above Specially designed as a belt tensioning device, with the very high clamping forces are required, which is why in addition to the inner biasing spring for the friction element another outer biasing spring between cylinder and piston rod is provided, which is the actual Preload force for apply the strap.
Die unterschiedliche Reibdämpfung in den verschiedenen Bewegungsrichtungen der Kolbenstange sind dabei relativ klein.The different friction damping in the different directions of movement of the piston rod are doing relatively small.
Zusammenfassung der ErfindungSummary the invention
Der Erfindung liegt daher die Aufgabe zugrunde, eine mechanische Spannvorrichtung der eingangs genannten Art so auszugestalten, dass sie eine höhere Dämpfung erreicht und gleichzeitig mit sehr einfachen Baumitteln auch für Kettenspannvorrichtungen geeignet ist.Of the The invention is therefore based on the object, a mechanical tensioning device of the type mentioned above in such a way that it achieves a higher damping and at the same time with very simple construction means also for chain tensioning devices suitable is.
Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, dass der Zylinder mit einem in Einfahrrichtung der Kolbenstange sich verjüngenden Innenkonus versehen ist, an dem das Reibelement außenseitig mit einem entsprechenden Außenkonus anliegt, derart, dass das Reibelement sich beim Einfedern der Kolbenstange weiter als diese bewegt.to solution this object is inventively provided that the cylinder with a retraction of the piston rod rejuvenating Inner cone is provided, on which the friction element on the outside with a corresponding outer cone is present, such that the friction element during compression of the piston rod further than this moves.
Durch die erfindungsgemäße Ausgestaltung wird erreicht, dass bei einer Linearbewegung des Kolbens das Reibelement sich sowohl relativ zum Gehäuse als auch relativ zum Kolben bewegen muss, was zu einer Reibung an beiden Kontaktflächen und damit zu einer erhöhten Dämpfung führt.By the embodiment of the invention will achieved that during a linear movement of the piston, the friction element itself relative to the case as well as relative to the piston must move, causing friction two contact surfaces and thus to an increased damping leads.
Mit besonderem Vorteil soll in weiterer Ausgestaltung der Erfindung deshalb vorgesehen sein, dass der Innenkonus des Zylinders einen wesentlich kleine ren Öffnungswinkel als der Innenkonus des Reibelements aufweist, damit keine Verkeilung dergestalt auftreten kann, dass die Relativbewegung des Reibelements zum Gehäuse einerseits und zur Kolbenstange andererseits beeinträchtigt wird.With particular advantage is intended in a further embodiment of the invention Therefore, be provided that the inner cone of the cylinder a much smaller opening angle as the inner cone of the friction element has, so no wedging may occur such that the relative movement of the friction element to the housing on the one hand and the piston rod on the other hand is impaired.
Bei Einsatz für eine Kettenspannvorrichtung kommt die erfindungsgemäße Vorrichtung mit der einen inneren Druckfeder aus, da bei Kettenspannvorrichtungen die Spannkräfte auf die Kette nicht so groß sein müssen, wie bei Riemenspannvorrichtungen. Sie eignet sich aber selbstverständlich auch für solche Riemenspannvorrichtungen, wobei in diesem Fall dann bevorzugt der Zylinder und die Kolbenstange durch eine zusätzliche äußere Druckfeder unmittelbar aneinander abgestützt sind.at Use For a chain tensioning device comes the device according to the invention with the one inner compression spring, as in chain tensioners the clamping forces not be so big on the chain have to, as with belt tensioners. Of course, it is also suitable for such Belt tensioning devices, in which case preferably the Cylinder and the piston rod by an additional external compression spring directly supported on each other are.
Kurze Beschreibung der ZeichnungenShort description the drawings
Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden anhand der beigefügten Zeichnungen erfolgenden Beschreibung eines Ausführungsbeispiels. Dabei zeigen:Further Advantages and details of the invention will become apparent from the following with the attached Drawings taking place description of an embodiment. Showing:
Detaillierte Beschreibung der Zeichnungendetailed Description of the drawings
Die
erfindungsgemäße Spannvorrichtung umfasst
einen Zylinder
Erfindungsgemäß ist der
Zylinder
Durch
diese Bemessung ist es, noch dazu in Abstimmung mit den Federkräften, möglich, dass
das Reibelement sich beim Einfedern der Kolbenstange aus der in
- 11
- Zylindercylinder
- 22
- Befestigungsaugefastening eye
- 33
- Befestigungsaugefastening eye
- 44
- Kolbenstangepiston rod
- 55
- Reibelementfriction
- 66
- Innenkonusinner cone
- 77
- Außenkonusouter cone
- 88th
- Innenkonusinner cone
- 99
- Außenkonusouter cone
- 1010
- Bewegung des Konus der KolbenstangeMove the cone of the piston rod
- 1111
- Bewegung des Reibelements gegenüber der KolbenstangeMove of the friction element opposite the piston rod
- 1212
- Druckfedercompression spring
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003160288 DE10360288A1 (en) | 2003-12-20 | 2003-12-20 | Mechanical tensioning device for traction means with directional friction damping |
PCT/EP2004/013191 WO2005064200A1 (en) | 2003-12-20 | 2004-11-20 | Mechanical clamping device for traction means with oriented friction damping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003160288 DE10360288A1 (en) | 2003-12-20 | 2003-12-20 | Mechanical tensioning device for traction means with directional friction damping |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10360288A1 true DE10360288A1 (en) | 2005-07-21 |
Family
ID=34683721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003160288 Withdrawn DE10360288A1 (en) | 2003-12-20 | 2003-12-20 | Mechanical tensioning device for traction means with directional friction damping |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10360288A1 (en) |
WO (1) | WO2005064200A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007009631A1 (en) * | 2005-07-22 | 2007-01-25 | Schaeffler Kg | Damping device for a traction mechanism drive |
DE102007028191A1 (en) | 2007-06-20 | 2008-12-24 | Schaeffler Kg | Linear adjuster for traction drive of internal-combustion engine, has pressure unit arranged in traction drive such that resulting traction force acting on pressure unit engages at pointed angle for moving direction |
DE102008052307A1 (en) * | 2008-10-18 | 2010-04-22 | Schaeffler Kg | Mechanical clamping device for e.g. belt, of traction unit drive of motorvehicle, has friction element pressed against cylinder wall, where contact surface and wall are arranged in angle not equal to specific degree |
DE102010014740A1 (en) | 2010-04-13 | 2011-10-13 | Schaeffler Technologies Gmbh & Co. Kg | Linear operating mechanical clamping device for traction mechanism drive of internal-combustion engine, has base element supported at stationary component of internal-combustion engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9006213U1 (en) * | 1990-06-01 | 1990-08-02 | Skf Gmbh, 8720 Schweinfurt, De | |
DE4203448A1 (en) * | 1992-02-07 | 1993-08-12 | Schaeffler Waelzlager Kg | Belt tensioning device for the drive of secondary assemblies in engines - has gap in vibration dampener between piston and friction body |
DE4203449A1 (en) * | 1992-02-07 | 1993-08-12 | Schaeffler Waelzlager Kg | Belt tensioning device for the drive of secondary assemblies of engines - has friction body formed by two wedged piston parts set axially in succession |
DE29610404U1 (en) * | 1996-06-13 | 1996-08-22 | Winklhofer & Soehne Gmbh | Damping ring |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06193695A (en) * | 1992-12-24 | 1994-07-15 | Ntn Corp | Auto tensioner |
JP3538662B2 (en) * | 1994-09-26 | 2004-06-14 | 日本発条株式会社 | Propulsion device |
-
2003
- 2003-12-20 DE DE2003160288 patent/DE10360288A1/en not_active Withdrawn
-
2004
- 2004-11-20 WO PCT/EP2004/013191 patent/WO2005064200A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9006213U1 (en) * | 1990-06-01 | 1990-08-02 | Skf Gmbh, 8720 Schweinfurt, De | |
DE4203448A1 (en) * | 1992-02-07 | 1993-08-12 | Schaeffler Waelzlager Kg | Belt tensioning device for the drive of secondary assemblies in engines - has gap in vibration dampener between piston and friction body |
DE4203449A1 (en) * | 1992-02-07 | 1993-08-12 | Schaeffler Waelzlager Kg | Belt tensioning device for the drive of secondary assemblies of engines - has friction body formed by two wedged piston parts set axially in succession |
DE29610404U1 (en) * | 1996-06-13 | 1996-08-22 | Winklhofer & Soehne Gmbh | Damping ring |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007009631A1 (en) * | 2005-07-22 | 2007-01-25 | Schaeffler Kg | Damping device for a traction mechanism drive |
DE102007028191A1 (en) | 2007-06-20 | 2008-12-24 | Schaeffler Kg | Linear adjuster for traction drive of internal-combustion engine, has pressure unit arranged in traction drive such that resulting traction force acting on pressure unit engages at pointed angle for moving direction |
DE102008052307A1 (en) * | 2008-10-18 | 2010-04-22 | Schaeffler Kg | Mechanical clamping device for e.g. belt, of traction unit drive of motorvehicle, has friction element pressed against cylinder wall, where contact surface and wall are arranged in angle not equal to specific degree |
DE102010014740A1 (en) | 2010-04-13 | 2011-10-13 | Schaeffler Technologies Gmbh & Co. Kg | Linear operating mechanical clamping device for traction mechanism drive of internal-combustion engine, has base element supported at stationary component of internal-combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2005064200A1 (en) | 2005-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER KG, 91074 HERZOGENAURACH, DE |
|
8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
|
8141 | Disposal/no request for examination |