DE102004028485A1 - Tensioning device for belts, chains and similar on combustion engines has fiction part, base part and torsion-wound spring whose ends produce turning force, guide part turnable on base, nose part with pin facing base and pressure spring - Google Patents
Tensioning device for belts, chains and similar on combustion engines has fiction part, base part and torsion-wound spring whose ends produce turning force, guide part turnable on base, nose part with pin facing base and pressure spring Download PDFInfo
- Publication number
- DE102004028485A1 DE102004028485A1 DE200410028485 DE102004028485A DE102004028485A1 DE 102004028485 A1 DE102004028485 A1 DE 102004028485A1 DE 200410028485 DE200410028485 DE 200410028485 DE 102004028485 A DE102004028485 A DE 102004028485A DE 102004028485 A1 DE102004028485 A1 DE 102004028485A1
- Authority
- DE
- Germany
- Prior art keywords
- base part
- base
- hub
- spring
- designed
- 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- Withdrawn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
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1209—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
- F16H7/1218—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley 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
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
-
- 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
- F16H2007/081—Torsion springs
Abstract
Description
Gebiet der ErfindungTerritory of invention
Spannvorrichtung für Riemen, Ketten und dergleichen, insbesondere an Brennkraftmaschinen, mit einem an dem Maschinengehäuse befestigbaren Basisteil, mit einem Tragarm, dessen Nabenteil am Basisteil gelagert ist und der an seinem freien Ende eine mit dem Riemen, der Kette und dergleichen in Wirkverbindung stehende Spannrolle trägt, mit einem Reibelement, das mit dem Basisteil und dem Tragarm in Wirkverbindung steht, und mit einer Spiralfeder oder torsionsgewickelten Schenkelfeder bzw. einer Multifunktionsfeder, deren Enden oder Schenkel mit dem Basisteil und dem Tragarm zur Erzeugung einer Drehkraft zwischen Tragarm und Basisteil verbunden sind.jig for straps, Chains and the like, in particular on internal combustion engines, with one on the machine housing Fastenable base part, with a support arm whose hub part on the base part is mounted and the one at the free end with the belt, the chain and the like in operative connection idler wearing, with a friction element, which is connected to the base part and the support arm Operational connection is, and with a coil spring or torsionsgewickelt Leg spring or a multifunction spring, the ends or legs with the base part and the support arm for generating a rotational force between Support arm and base are connected.
Hintergrund der Erfindungbackground the invention
Eine
derartige gattungsbildende Spannvorrichtung ist aus der
Aufgabe der ErfindungTask of invention
Aufgabe der Erfindung ist es daher, eine Spannvorrichtung zur Verfügung zu stellen, durch die eine Dämpfung der Federschwingungen und zugleich eine Stabilisierung des rotativ wirkenden Tragarmes mit Verringerung der Reibbelagbeanspruchung gegeben ist. Die Spannvorrichtung soll weiterhin einfach im Aufbau, kostengünstig und betriebssicher sein.task The invention is therefore to provide a clamping device available put, through which a damping the spring vibrations and at the same time a stabilization of the rotary acting support arm with reduction of the friction lining stress given is. The clamping device should continue to be simple in construction, economical and be reliable.
Zusammenfassung der ErfindungSummary the invention
Die Aufgabe der Erfindung wird dadurch gelöst, dass an dem Basisteil ein Führungskörper drehfest befestigt ist, auf dem das Nabenteil unter Zwischenschaltung einer Kombibüchse geführt ist, dass das Nabenteil einen zum Basisteil ausgerichteten Nabenzapfen aufweist und dass die Spiral- oder Schenkelfeder als Multifunktionsfeder ausgeführt ist, die zu ihrer Drehfunktion als Druckfeder ausgebildet ist und mit zumindest einer, vorzugsweise mehreren Windungen auf der Außenfläche des Nabenzapfens anliegt. Die Spiralfeder wirkt zudem als eine Druckfeder, mit der eine Dämpfung und damit eine Stabilisierung von Stellbewegungen des Hebelarms realisierbar sind.The The object of the invention is achieved in that on the base part a Guide body rotatably is attached, on which the hub part with interposition of a Combination rifle guided in that the hub part has a hub part aligned with the base part and that the spiral or leg spring as a multifunction spring accomplished is, which is designed for its rotational function as a compression spring and with at least one, preferably a plurality of turns on the outer surface of the Hub pin is applied. The spiral spring also acts as a compression spring, with the one damping and thus a stabilization of actuating movements of the lever arm are feasible.
Durch diese Ausgestaltung der Erfindung trägt der Führungskörper, der mit Abstand zur Anschraubstelle des Basisteils am Maschinengehäuse angeordnet ist und damit so weit als möglich im Bereich des Tragarms liegt, den Tragarm, wobei die Druckkraft der Spiral- oder Schenkelfeder den Nabenteil vom Basisteil weg auf den Führungskörper hin belastet. Zur Stabilität der Führung trägt weiterhin bei, dass die Spiral- oder Schenkelfeder den Nabenzapfen umgreift und führt. Dabei werden die Radialkräfte der Schenkelfeder im Bereich des Nabenzapfen anwendungsspezifisch, z. B. in Abhängigkeit der Druckkräfte ausgelegt.By this embodiment of the invention carries the guide body, the distance to the attachment point of the base part arranged on the machine housing is and as far as possible in the region of the support arm, the support arm, wherein the pressure force the spiral or leg spring the hub part away from the base part towards the guide body loaded. To stability the leadership continues to contribute, that the spiral or leg spring surrounds the hub journal and leads. This will be the radial forces the leg spring in the area of the hub pivot application-specific, z. B. in dependence the pressure forces designed.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, dass zwischen dem Nabenzapfen und der Multifunktionsfeder ein Dämpfungsrohr eingebaut ist, das den Nabenzapfen in Richtung Basisteil überragt. Der Nabenzapfen kann daher kürzer ausgebildet sein, wobei das Dämpfungsrohr nicht nur die radiale Spannkraft der Spiral- oder Schenkelfeder auf den Nabenzapfen überträgt sondern auch weit in die Feder hinein bis über deren Mitte reichen kann, um Schwingungen der Feder zu dämpfen. Dieser Aufbau unterbindet kritische Resonanzbrüche des Federdrahtes und gewährleistet damit eine gesteigerte Lebensdauer der Spiral- oder Schenkelfeder. Dadurch trägt sie auch zur Führung des Nabenteils bei. Je nach Ausgestaltung des Dämpfungsrohres liegt die Feder, insbesondere außerhalb des Nabenzapfens, nur an dem Dämpfungsrohr an. Dies reicht aus, um die Federschwingungen zu dämpfen. Etwaige Geräusche oder Verschleiß lassen sich mit entsprechenden Werkstoffen beheben bzw. reduzieren.In Another embodiment of the invention proposes that between the hub journal and the multifunctional spring a damping tube is installed, which projects beyond the hub pin in the direction of the base part. The hub can therefore be shorter be formed, wherein the damping tube not just the radial tension of the spiral spring or leg spring but transfers to the hub pivot also far into the spring can reach over the middle, to dampen vibrations of the spring. This structure prevents critical resonance breaks of the spring wire and ensures thus an increased life of the spiral or leg spring. Thereby wearing she also leads the way Hub part at. Depending on the design of the damping tube is the spring, especially outside of the hub pin, only on the damping tube at. This is sufficient to dampen the spring oscillations. any Sounds or wear out correct or reduce with appropriate materials.
In einer bevorzugten Ausgestaltung der Erfindung sind die der Kombibüchse zugewandten Flächen des Führungskörpers und des Nabenteils kegelförmig, in Richtung des Basisteils sich verjüngend, ausgeführt. Damit entsteht in Verbindung mit der Druckkraft der Schenkelfeder eine gute Führung des Tragarms auf dem Führungskörper, wobei eine spielfreie Lagerung entsteht. Durch geeignete Wahl des Kegelwinkels lässt sich die auf die Kombibüchse wirkende Spannkraft dosieren. Es sei darauf hingewiesen, dass die Kegelwinkel an den Flächen des Führungskörpers und des Nabenteils nicht identisch sein müssen, sondern variieren können, wobei dann auch die Kombibüchse unterschiedliche Wandstärken aufweist. Dadurch lassen sich die Reibverhältnisse zwischen Führungskörper und Kombibüchse sowie Kombibüchse und Nabenteil variieren.In a preferred embodiment of the invention, the combi bushing facing surfaces of the guide body and the hub part are conical, tapered in the direction of the base part executed. This creates in conjunction with the pressure force of the leg spring good guidance of the support arm on the guide body, with a game free storage arises. By suitable choice of the cone angle, the force acting on the combi bushing clamping force can be dosed. It should be noted that the cone angles at the surfaces of the guide body and the hub part need not be identical, but can vary, in which case the combi bushing has different wall thicknesses. As a result, the friction conditions between the guide body and combi bushing and combi bushing and hub part can be varied.
Durch diese Ausgestaltung der Erfindung ist die Kombibüchse sowohl als Lagerbuchse für den Tragarm bzw. dessen Nabenteil am Führungskörper als auch als Reibelement zur Dämpfung der Schwenkbewegungen des Tragarmes auf dem Führungskörper ausgebildet.By this embodiment of the invention is the combi bushing both as a bearing bush for the support arm or its hub part on the guide body as also as a friction element for damping the pivoting movements of the support arm formed on the guide body.
Die Führungsbüchse und das Dämpfungsrohr können als geschlossene Körper, insbesondere Ringe, ausgeführt oder längsgeschlitzt sein. Wenn die Führungsbüchse und das Dämpfungsrohr als geschlossene Körper ausgeführt sind, ist es vorteilhaft, wenn Dehnfugen vorgesehen sind, damit die radialen Kräfte nicht nur zwischen der Führungsbüchse bzw. Dämpfungsrohr und einem der anliegenden Bauteile entstehen, sondern auf das Bauteil an der anderen Seite der Führungsbüchse bzw. des Dämpfungsrohres weitergeleitet werden. Sind die Führungsbüchse und das Dämpfungsrohr geschlitzt ausgeführt, dann kann an den Stirnflächen zur besseren gegenseitigen Führung eine Nut/Feder-Verbindung vorgesehen sein.The Guide bush and the damping tube can as closed bodies, in particular rings, executed or longitudinally slotted be. If the guide bush and the damping tube as a closed body accomplished are, it is advantageous if expansion joints are provided so that the radial forces not only between the guide bush or damping tube and one of the adjacent components, but on the component on the other side of the guide bush or of the damping tube to get redirected. Are the guide bush and the damping tube Slotted executed, then can on the front surfaces for better mutual guidance a tongue and groove connection be provided.
Als Werkstoff für die Führungsbüchse und das Dämpfungsrohr wird ein Thermoplast bzw. ein thermoplastisches Elastomer vorgeschlagen.When Material for the guide bush and the damping pipe a thermoplastic or a thermoplastic elastomer is proposed.
Kurze Beschreibung der ZeichnungenShort description the drawings
Zur weiteren Erläuterung der Erfindung wird auf die Zeichnungen verwiesen, in denen Ausführungsbeispiele der Erfindung vereinfacht dargestellt sind. Es zeigen:to further explanation The invention is directed to the drawings, in which embodiments the invention are shown simplified. Show it:
Detaillierte Beschreibung der Zeichnungendetailed Description of the drawings
In
den
Der
Nabenteil
Der
Nabenzapfen
- 11
- Basisteilbase
- 22
- Führungskörperguide body
- 33
- Spannmutterlocknut
- 44
- KombibüchseCombination rifle
- 55
- Nabenteilhub part
- 66
- TragarmBeam
- 77
- Spannrolleidler
- 88th
- Nabenzapfenhub pin
- 99
- SchenkelfederLeg spring
- 1010
- Dichtringeseals
- 1111
- Dämpfungsrohrdamping pipe
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410028485 DE102004028485A1 (en) | 2004-06-11 | 2004-06-11 | Tensioning device for belts, chains and similar on combustion engines has fiction part, base part and torsion-wound spring whose ends produce turning force, guide part turnable on base, nose part with pin facing base and pressure spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410028485 DE102004028485A1 (en) | 2004-06-11 | 2004-06-11 | Tensioning device for belts, chains and similar on combustion engines has fiction part, base part and torsion-wound spring whose ends produce turning force, guide part turnable on base, nose part with pin facing base and pressure spring |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004028485A1 true DE102004028485A1 (en) | 2005-12-29 |
Family
ID=35455029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410028485 Withdrawn DE102004028485A1 (en) | 2004-06-11 | 2004-06-11 | Tensioning device for belts, chains and similar on combustion engines has fiction part, base part and torsion-wound spring whose ends produce turning force, guide part turnable on base, nose part with pin facing base and pressure spring |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004028485A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006051654A1 (en) * | 2006-11-02 | 2008-05-08 | Schaeffler Kg | Belt tensioner for belt drive of internal combustion engine, has tensioning arm carrying tensioning roll and cushioning against belt of belt drive, which is rotatingly supported against stationary housing |
DE102007016008A1 (en) | 2007-04-03 | 2008-10-09 | Schaeffler Kg | Traction unit clamping device for motor vehicle, has stabilizing body transferring radial forces, where body is supported outward at exposed spring coils adjacent to body and inward at outer side of hub pivot under pre-loading |
DE102007016007A1 (en) | 2007-04-03 | 2008-10-09 | Schaeffler Kg | Automatic clamping system for use in internal combustion engine of motor vehicle, has spreading unit formed as auxiliary aid arranged between housing part and arm that is spaced in mounting position opposite to part |
DE102007020738A1 (en) | 2007-05-03 | 2008-11-06 | Schaeffler Kg | Belt drive clamping device for internal combustion engine of motor vehicle, has integrated multi-functional part arranged in housing part, and damper designed as frictional damper with frictional partners |
DE102008024099A1 (en) | 2008-05-17 | 2009-11-19 | Schaeffler Kg | Method for processing bearing surface of bearing ring of roller bearing, involves clamping bearing ring in workpiece collet chuck, such that same force components act on bearing ring |
DE102009024096A1 (en) | 2009-06-06 | 2010-12-09 | Aft Atlas Fahrzeugtechnik Gmbh | Tensioning device for belts or chains in internal combustion engines, has base part fastened to machine housing, and support arm, whose hub part is supported on base part |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4426666A1 (en) * | 1994-07-28 | 1996-02-01 | Schaeffler Waelzlager Kg | Device for damping spring vibrations |
DE19540706A1 (en) * | 1995-11-02 | 1997-05-07 | Schaeffler Waelzlager Kg | Tensioning device for traction devices with a conical plain bearing |
DE19953379A1 (en) * | 1999-11-06 | 2001-05-31 | Schaeffler Waelzlager Ohg | Tensioning device for pulley drive mechanism has tension roller, fixed housing, plain sliding bush, friction cone, ring sections and conical hole |
JP2003120768A (en) * | 2001-10-18 | 2003-04-23 | Koyo Seiko Co Ltd | Auto-tensioner |
DE10152364A1 (en) * | 2001-10-24 | 2003-05-08 | Ina Schaeffler Kg | jig |
JP2003278862A (en) * | 2002-03-27 | 2003-10-02 | Mitsuboshi Belting Ltd | Autotensioner |
DE10217396A1 (en) * | 2002-04-18 | 2003-10-30 | Ina Schaeffler Kg | jig |
JP2004132390A (en) * | 2002-10-08 | 2004-04-30 | Bando Chem Ind Ltd | Automatic tensioner |
-
2004
- 2004-06-11 DE DE200410028485 patent/DE102004028485A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4426666A1 (en) * | 1994-07-28 | 1996-02-01 | Schaeffler Waelzlager Kg | Device for damping spring vibrations |
DE19540706A1 (en) * | 1995-11-02 | 1997-05-07 | Schaeffler Waelzlager Kg | Tensioning device for traction devices with a conical plain bearing |
DE19953379A1 (en) * | 1999-11-06 | 2001-05-31 | Schaeffler Waelzlager Ohg | Tensioning device for pulley drive mechanism has tension roller, fixed housing, plain sliding bush, friction cone, ring sections and conical hole |
JP2003120768A (en) * | 2001-10-18 | 2003-04-23 | Koyo Seiko Co Ltd | Auto-tensioner |
DE10152364A1 (en) * | 2001-10-24 | 2003-05-08 | Ina Schaeffler Kg | jig |
JP2003278862A (en) * | 2002-03-27 | 2003-10-02 | Mitsuboshi Belting Ltd | Autotensioner |
DE10217396A1 (en) * | 2002-04-18 | 2003-10-30 | Ina Schaeffler Kg | jig |
JP2004132390A (en) * | 2002-10-08 | 2004-04-30 | Bando Chem Ind Ltd | Automatic tensioner |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006051654A1 (en) * | 2006-11-02 | 2008-05-08 | Schaeffler Kg | Belt tensioner for belt drive of internal combustion engine, has tensioning arm carrying tensioning roll and cushioning against belt of belt drive, which is rotatingly supported against stationary housing |
DE102007016008A1 (en) | 2007-04-03 | 2008-10-09 | Schaeffler Kg | Traction unit clamping device for motor vehicle, has stabilizing body transferring radial forces, where body is supported outward at exposed spring coils adjacent to body and inward at outer side of hub pivot under pre-loading |
DE102007016007A1 (en) | 2007-04-03 | 2008-10-09 | Schaeffler Kg | Automatic clamping system for use in internal combustion engine of motor vehicle, has spreading unit formed as auxiliary aid arranged between housing part and arm that is spaced in mounting position opposite to part |
DE102007020738A1 (en) | 2007-05-03 | 2008-11-06 | Schaeffler Kg | Belt drive clamping device for internal combustion engine of motor vehicle, has integrated multi-functional part arranged in housing part, and damper designed as frictional damper with frictional partners |
DE102008024099A1 (en) | 2008-05-17 | 2009-11-19 | Schaeffler Kg | Method for processing bearing surface of bearing ring of roller bearing, involves clamping bearing ring in workpiece collet chuck, such that same force components act on bearing ring |
DE102009024096A1 (en) | 2009-06-06 | 2010-12-09 | Aft Atlas Fahrzeugtechnik Gmbh | Tensioning device for belts or chains in internal combustion engines, has base part fastened to machine housing, and support arm, whose hub part is supported on base part |
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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 |
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Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150211 |
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