DE102011017769A1 - Chain drive for driving valve or injection pump, has driving sprocket wheel and driven sprocket wheel, where rail is provided for guiding or tensioning of chain - Google Patents
Chain drive for driving valve or injection pump, has driving sprocket wheel and driven sprocket wheel, where rail is provided for guiding or tensioning of chain Download PDFInfo
- Publication number
- DE102011017769A1 DE102011017769A1 DE102011017769A DE102011017769A DE102011017769A1 DE 102011017769 A1 DE102011017769 A1 DE 102011017769A1 DE 102011017769 A DE102011017769 A DE 102011017769A DE 102011017769 A DE102011017769 A DE 102011017769A DE 102011017769 A1 DE102011017769 A1 DE 102011017769A1
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- DE
- Germany
- Prior art keywords
- chain
- rail
- absorber
- chain drive
- sprocket wheel
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- 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.)
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Classifications
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- 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
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
Abstract
Description
Die Erfindung betrifft einen Kettentrieb, insbesondere für den Antrieb eines Ventils oder einer Einspritzpumpe, mit einem antreibenden Kettenrad und wenigstens einem angetriebenen Kettenrad, einer die Kettenräder verbindenden endlosen Kette, wenigstens einer Schiene zum Führen oder Spannen der Kette sowie einer Dämpfungseinrichtung zur Dämpfung von Schwingungen der Kette.The invention relates to a chain drive, in particular for driving a valve or an injection pump, with a driving sprocket and at least one driven sprocket, an endless chain connecting the sprockets, at least one rail for guiding or tensioning the chain and a damping device for damping vibrations of the Chain.
Der Antrieb von Ventiltrieben und Einspritzpumpen erfolgt bei Verbrennungskraftmaschinen häufig über Kettentriebe mit Kettenrädern und Ketten. Bei solchen Kettentrieben ist meist am Zugtrum (gezogener Teil der Kette) eine Führungsschiene, am Leertrum (nicht gezogener Teil der Kette) eine Spannschiene im Einsatz.The drive of valve trains and injection pumps in internal combustion engines often takes place via chain drives with sprockets and chains. In such chain drives is usually on Zugtrum (pulled part of the chain), a guide rail on the slack side (not pulled part of the chain) a clamping rail in use.
Kettentriebe werden akustisch auffällig, wenn die Kette unerwünscht zu Schwingungen angeregt wird. Häufigste Ursache für solche Schwingungen ist der sogenannte Polygoneffekt, der auftritt, wenn das Antriebsrad formschlüssig in die Kette eingreift. Da die Kette auf dem Antriebsrad nicht kreisrund auf- und ablaufen kann, kommt es zu Abwinkelungen der Kette, sodass das Antriebsrad ein Polygon (Vieleck) bildet. Daraus resultieren Erregungen in Längs- und Querrichtung der Kette, die die Kette in Schwingungen versetzen. Diese Schwingungen werden als ”Kettenheulen” wahrgenommen.Chain drives become acoustically noticeable when the chain is undesirably excited to vibrate. The most common cause of such vibrations is the so-called polygon effect, which occurs when the drive wheel engages positively in the chain. Since the chain on the drive wheel can not run up and down circularly, it will bend the chain, so that the drive wheel forms a polygon (polygon). This results in excitations in the longitudinal and transverse direction of the chain, which set the chain in vibration. These vibrations are perceived as "chain howls".
Üblicherweise werden zur Beseitigung dieses Problems Ketten mit kleinerer Teilung, Kettenräder mit einer größeren Anzahl an Zähnen oder ganz andere Technologien wie etwa Zahnketten oder Zahnriemen eingesetzt. Es ist jedoch zu berücksichtigen, dass im Vergleich zu Kettentrieben Zahnketten sehr teuer sind und Zahnriemen nur eine begrenzte Lebensdauer haben.Typically, to alleviate this problem, smaller pitch chains, sprockets with a larger number of teeth or quite different technologies such as toothed chains or toothed belts are used. It should be noted, however, that in comparison to chain drives, toothed chains are very expensive and toothed belts only have a limited service life.
In der
Die
Aus der
Aufgabe der Erfindung ist es, eine kostengünstige, effektive Möglichkeit aufzuzeigen, unerwünschte Kettenschwingungen bei einem Kettentrieb zu unterdrücken.The object of the invention is to show a cost effective possibility to suppress unwanted chain vibrations in a chain drive.
Gelöst wird diese Aufgabe durch einen Kettentrieb mit den Merkmalen des Anspruchs 1. Vorteilhafte und zweckmäßige Ausgestaltungen des erfindungsgemäßen Kettentriebs sind in den Unteransprüchen angegeben.This object is achieved by a chain drive with the features of claim 1. Advantageous and expedient embodiments of the chain drive according to the invention are specified in the subclaims.
Der erfindungsgemäße Kettentrieb, der insbesondere für den Antrieb eines Ventils oder einer Einspritzpumpe vorgesehen ist, umfasst ein antreibendes Kettenrad und wenigstens ein angetriebenes Kettenrad, eine die Kettenräder verbindende endlose Kette, wenigstens eine Schiene zum Führen und/oder Spannen der Kette sowie eine Dämpfungseinrichtung zur Dämpfung von Schwingungen der Kette. Die Dämpfungseinrichtung weist einen Tilger auf, der unterhalb eines Abschnitts der Schiene angeordnet ist, an dem die Kette im Betrieb des Kettentriebs anliegt, insbesondere unterhalb eines Gleitbelags. ”Unterhalb” soll in diesem Zusammenhang ”auf der von der Kette abgewandten Seite” bedeuten.The chain drive according to the invention, which is provided in particular for driving a valve or an injection pump, comprises a driving sprocket and at least one driven sprocket, an endless chain connecting the sprockets, at least one rail for guiding and / or tensioning the chain and a damping device for damping of vibrations of the chain. The damping device has a absorber, which is arranged below a portion of the rail on which the chain rests during operation of the chain drive, in particular below a sliding lining. "Below" in this context means "on the side away from the chain".
Die Erfindung beruht auf der Erkenntnis, dass durch die erfindungsgemäße Anordnung eines auf die problematische Frequenz (Eigenfrequenz) abgestimmten Tilgers die Kette soweit beruhigt werden kann, dass das Kettenheulen signifikant reduziert wird. Im Vergleich zu alternativen Technologien wie Zahnketten und Zahnriemen bleiben die Vorteile des Kettentriebs erhalten.The invention is based on the finding that the chain can be calmed so far by the inventive arrangement of a tuned to the problematic frequency (natural frequency) absorber, that the Kettenheulen is significantly reduced. Compared to alternative technologies such as toothed chains and toothed belts, the advantages of the chain drive are retained.
Die Schiene ist vorzugsweise eine am Zugtrum der Kette angeordnete Führungsschiene. Es hat sich nämlich gezeigt, dass Schwingungen der Kette mithilfe des erfindungsgemäßen Tilgers am besten am Zugtrum unterbunden werden können.The rail is preferably a guide rail arranged on the traction arm of the chain. It has been shown that vibrations of the chain using the absorber according to the invention can best be prevented on Zugtrum.
Bevorzugt weist die Schiene einen steifen Trägerabschnitt, insbesondere aus einem Polyamid-Werkstoff, und einen Gleitbelag auf, auf dem die Kette direkt aufliegt. Der Tilger ist dann zwischen dem Trägerabschnitt und dem Gleitbelag angeordnet.Preferably, the rail has a rigid support portion, in particular of a polyamide material, and a sliding coating on which the Chain rests directly. The absorber is then arranged between the support portion and the sliding coating.
Für die Auslegung des Tilgers als Feder-Masse-System ist eine Ausgestaltung vorteilhaft, gemäß der der Tilger wenigstens ein elastisches Element, insbesondere eine Elastomerschicht, und wenigstens eine an das elastische Element gekoppelte Tilgermasse aufweist.For the design of the absorber as a spring-mass system, an embodiment is advantageous according to which the absorber has at least one elastic element, in particular an elastomer layer, and at least one absorber mass coupled to the elastic element.
Bei der bevorzugten Ausführungsform der Erfindung weist der Tilger eine zwischen zwei Elastomerschichten eingebettete Tilgermasse auf.In the preferred embodiment of the invention, the absorber comprises an absorber mass embedded between two elastomeric layers.
Gemäß einer Weiterbildung der Erfindung der Erfindung weist der Tilger mehrere Tilgermassen auf. Durch verschiedene Tilgermassen kann der Tilger auf mehrere unterschiedliche Frequenzen abgestimmt werden.According to a development of the invention of the invention, the absorber on several absorber masses. By different absorber masses of the absorber can be tuned to several different frequencies.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den beigefügten Zeichnungen, auf die Bezug genommen wird. In den Zeichnungen zeigen:Further features and advantages of the invention will become apparent from the following description and from the accompanying drawings, to which reference is made. In the drawings show:
In
Mithilfe von Stehbolzen oder dergleichen, die durch die Lageröffnungen
Die Führungsschiene
Die in
Der Grundkörper
Im dargestellten Ausführungsbeispiel sind zwei unterschiedlich schwere Tilgermassen
Die Führungsschiene
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 10, 10'10, 10 '
- Führungsschieneguide rail
- 1212
- Grundkörperbody
- 1414
- Lageröffnungenbearing openings
- 16, 16'16, 16 '
- Trägerabschnittsupport section
- 1818
- Gleitbelagsliding lining
- 2020
- erste Elastomerschichtfirst elastomer layer
- 2222
- Tilgermasseabsorber mass
- 2424
- zweite Elastomerschichtsecond elastomer layer
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 0872629 A1 [0005] EP 0872629 A1 [0005]
- DE 10316607 A1 [0006] DE 10316607 A1 [0006]
- DE 19856705 A1 [0007] DE 19856705 A1 [0007]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011017769.8A DE102011017769B4 (en) | 2011-04-29 | 2011-04-29 | Chain drive, in particular for driving a valve or an injection pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011017769.8A DE102011017769B4 (en) | 2011-04-29 | 2011-04-29 | Chain drive, in particular for driving a valve or an injection pump |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102011017769A1 true DE102011017769A1 (en) | 2012-10-31 |
DE102011017769B4 DE102011017769B4 (en) | 2019-08-01 |
Family
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Application Number | Title | Priority Date | Filing Date |
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DE102011017769.8A Expired - Fee Related DE102011017769B4 (en) | 2011-04-29 | 2011-04-29 | Chain drive, in particular for driving a valve or an injection pump |
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DE (1) | DE102011017769B4 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012220302A1 (en) * | 2012-11-08 | 2014-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Rail e.g. tensioning rail of chain drive of internal combustion engine, has sliding surface including segmentation region in which running grooves are formed, where grooves are V-shaped and extended at edge region of surface from line |
CN104029335A (en) * | 2013-03-07 | 2014-09-10 | 伊威斯发动机系统有限责任两合公司 | Method For Producing Tensioning Or Guide Rail With Vibration Absorber |
EP2881618A1 (en) | 2013-12-06 | 2015-06-10 | Garaventa Liftech AG | Chain drive unit |
CN105485275A (en) * | 2014-10-02 | 2016-04-13 | 伊威斯发动机系统有限责任两合公司 | Tensioning or guide rail with opening |
DE102017201088A1 (en) | 2017-01-24 | 2018-07-26 | Bayerische Motoren Werke Aktiengesellschaft | Clamping or guide rail for a chain drive of an internal combustion engine |
US10378619B2 (en) | 2015-07-08 | 2019-08-13 | Iwis Motorsysteme Gmbh & Co. Kg | Modular guide rail or modular tensioning rail |
US10495193B2 (en) | 2014-10-02 | 2019-12-03 | Iwis Motorsysteme Gmbh & Co. Kg | Chain drive having a plurality of sliding elements |
DE102019124388A1 (en) * | 2019-09-11 | 2021-03-11 | Schaeffler Technologies AG & Co. KG | Damper device for a belt means of a belt drive |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0872629A1 (en) | 1997-04-18 | 1998-10-21 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Chain drive, in particular for ancillary drive in internal combustion engines |
DE29905965U1 (en) * | 1999-04-07 | 1999-09-02 | Iav Gmbh | Guide rail for endless drives |
DE19856705A1 (en) | 1998-12-09 | 2000-06-21 | Daimler Chrysler Ag | Automotive camshaft chain guide incorporates elastic masses reduces the generation of unwanted noise |
DE10316607A1 (en) | 2003-04-11 | 2004-11-04 | Audi Ag | Chain drive for an internal combustion engine (ICE) between the ICE's crankshaft and camshaft, has driving and driven chain wheels with torque-proof links to assigned shafts and a continuous chain |
DE102004013207A1 (en) * | 2004-03-17 | 2005-10-06 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Tension/slide rail for chain drives of IC engines for motor vehicles has core of elastically flexible plastic on end section to dampen chain vibrations |
JP2006207779A (en) * | 2005-01-31 | 2006-08-10 | Toyota Motor Corp | Behavior restrain device of timing chain |
DE102008015151A1 (en) * | 2007-05-11 | 2008-11-13 | Schaeffler Kg | traction drive |
WO2008138675A1 (en) * | 2007-05-11 | 2008-11-20 | Schaeffler Kg | Chain guiding element for a timing chain, timing chain drive, and vehicle engine |
DE102007049911A1 (en) * | 2007-10-18 | 2009-04-23 | Schaeffler Kg | Clamping and guide rail for chain drives |
-
2011
- 2011-04-29 DE DE102011017769.8A patent/DE102011017769B4/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0872629A1 (en) | 1997-04-18 | 1998-10-21 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Chain drive, in particular for ancillary drive in internal combustion engines |
DE19856705A1 (en) | 1998-12-09 | 2000-06-21 | Daimler Chrysler Ag | Automotive camshaft chain guide incorporates elastic masses reduces the generation of unwanted noise |
DE29905965U1 (en) * | 1999-04-07 | 1999-09-02 | Iav Gmbh | Guide rail for endless drives |
DE10316607A1 (en) | 2003-04-11 | 2004-11-04 | Audi Ag | Chain drive for an internal combustion engine (ICE) between the ICE's crankshaft and camshaft, has driving and driven chain wheels with torque-proof links to assigned shafts and a continuous chain |
DE102004013207A1 (en) * | 2004-03-17 | 2005-10-06 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Tension/slide rail for chain drives of IC engines for motor vehicles has core of elastically flexible plastic on end section to dampen chain vibrations |
JP2006207779A (en) * | 2005-01-31 | 2006-08-10 | Toyota Motor Corp | Behavior restrain device of timing chain |
DE102008015151A1 (en) * | 2007-05-11 | 2008-11-13 | Schaeffler Kg | traction drive |
WO2008138675A1 (en) * | 2007-05-11 | 2008-11-20 | Schaeffler Kg | Chain guiding element for a timing chain, timing chain drive, and vehicle engine |
DE102007049911A1 (en) * | 2007-10-18 | 2009-04-23 | Schaeffler Kg | Clamping and guide rail for chain drives |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012220302B4 (en) | 2012-11-08 | 2021-07-22 | Bayerische Motoren Werke Aktiengesellschaft | Friction-reduced rail for timing chain drive |
DE102012220302A1 (en) * | 2012-11-08 | 2014-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Rail e.g. tensioning rail of chain drive of internal combustion engine, has sliding surface including segmentation region in which running grooves are formed, where grooves are V-shaped and extended at edge region of surface from line |
CN104029335A (en) * | 2013-03-07 | 2014-09-10 | 伊威斯发动机系统有限责任两合公司 | Method For Producing Tensioning Or Guide Rail With Vibration Absorber |
DE102013003948A1 (en) | 2013-03-07 | 2014-09-11 | Iwis Motorsysteme Gmbh & Co. Kg | Method for producing a tensioning or guide rail with a vibration damper |
DE102013003948B4 (en) | 2013-03-07 | 2023-07-13 | Iwis Motorsysteme Gmbh & Co. Kg | Method for producing a tensioning or guide rail with a vibration absorber, tensioning or guide rail and endless drive with such |
US9394978B2 (en) | 2013-03-07 | 2016-07-19 | Iwis Motorsysteme Gmbh & Co. Kg | Method for producing a tensioning or guide rail with a vibration absorber |
CN104029335B (en) * | 2013-03-07 | 2017-04-12 | 伊威斯发动机系统有限责任两合公司 | Method For Producing Tensioning Or Guide Rail With Vibration Absorber |
EP2881618A1 (en) | 2013-12-06 | 2015-06-10 | Garaventa Liftech AG | Chain drive unit |
CN105485275B (en) * | 2014-10-02 | 2018-09-18 | 伊威斯发动机系统有限责任两合公司 | Tensioning with opening or guide rail |
US10495193B2 (en) | 2014-10-02 | 2019-12-03 | Iwis Motorsysteme Gmbh & Co. Kg | Chain drive having a plurality of sliding elements |
CN105485275A (en) * | 2014-10-02 | 2016-04-13 | 伊威斯发动机系统有限责任两合公司 | Tensioning or guide rail with opening |
US10378619B2 (en) | 2015-07-08 | 2019-08-13 | Iwis Motorsysteme Gmbh & Co. Kg | Modular guide rail or modular tensioning rail |
DE102017201088A1 (en) | 2017-01-24 | 2018-07-26 | Bayerische Motoren Werke Aktiengesellschaft | Clamping or guide rail for a chain drive of an internal combustion engine |
DE102019124388A1 (en) * | 2019-09-11 | 2021-03-11 | Schaeffler Technologies AG & Co. KG | Damper device for a belt means of a belt drive |
Also Published As
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DE102011017769B4 (en) | 2019-08-01 |
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