DE102011103721A1 - Torsional vibration damper for reducing torsional vibrations of crankshaft of engine, has spring washer connected with hub of damper and rotatably attached at damper ring by spiral spring bars, which are formed as parabola springs - Google Patents
Torsional vibration damper for reducing torsional vibrations of crankshaft of engine, has spring washer connected with hub of damper and rotatably attached at damper ring by spiral spring bars, which are formed as parabola springs Download PDFInfo
- Publication number
- DE102011103721A1 DE102011103721A1 DE102011103721A DE102011103721A DE102011103721A1 DE 102011103721 A1 DE102011103721 A1 DE 102011103721A1 DE 102011103721 A DE102011103721 A DE 102011103721A DE 102011103721 A DE102011103721 A DE 102011103721A DE 102011103721 A1 DE102011103721 A1 DE 102011103721A1
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- DE
- Germany
- Prior art keywords
- spring
- damper
- torsional vibration
- vibration damper
- spring washer
- 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.)
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/167—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring
- F16F15/173—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring provided within a closed housing
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/1414—Masses driven by elastic elements
- F16F15/1421—Metallic springs, e.g. coil or spiral springs
Abstract
Description
Die Erfindung betrifft einen Drehschwingungsdämpfer oder -tilger gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a torsional vibration damper or -tilger according to the preamble of claim 1.
Derartige Drehschwingungsdämpfer oder -tilger sind hinlänglich bekannt. Sie werden eingesetzt, um beispielsweise Torsionsschwingungen an Kurbelwellen zu reduzieren. Dabei ist innerhalb eines Gehäuses ein Schwungring in einem Dämpfungsöl, vorzugsweise Silikonöl, gelagert.Such torsional vibration damper or -tilger are well known. They are used, for example, to reduce torsional vibrations on crankshafts. In this case, within a housing, a flywheel in a damping oil, preferably silicone oil stored.
Allerdings ist ein solcher Dämpfer hinsichtlich seines Verhaltens sehr stark von der Anregefrequenz und von der Betriebstemperatur abhängig. Um eine Vergleichmäßigung der Eigenschaften insgesamt zu erreichen, ist beispielsweise in der
Allerdings ist die Formgebung der Federstege, mittels der die ebenen Federscheiben federfähig sind, und die bei der bekannten Federscheibe gleichmäßig breit sind und eine wellenförmige Kontur aufweisen, nicht geeignet, den Forderungen hinsichtlich einer gleichmäßigen Spannungsverteilung, insbesondere an den Außenkanten der Federstege zu entsprechen, so dass die Federstege nur eine eingeschränkte Formänderungsenergie aufnehmen können.However, the shape of the spring bars, by means of which the flat spring discs are springy, and which are uniformly wide in the known spring washer and have a wavy contour, not suitable to meet the requirements for a uniform stress distribution, in particular at the outer edges of the spring bars, so that the spring bars can absorb only a limited strain energy.
Der Erfindung liegt die Aufgabe zugrunde, einen Drehschwingungsdämpfer oder -tilger der gattungsgemäßen Art so weiterzuentwickeln, dass seine Dämpfungs- bzw. Tilgungseigenschaften mit geringem konstruktiven und fertigungstechnischen Aufwand optimiert werden.The invention has for its object to further develop a torsional vibration damper or -tilger of the generic type so that its damping or eradication properties are optimized with low design and manufacturing effort.
Diese Aufgabe wird durch einen Drehschwingungsdämpfer oder -tilger mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a torsional vibration damper or -tilger with the features of claim 1.
Durch diese konstruktive Ausbildung werden gegenüber den bekannten Drehschwingungsdämpfern wesentliche Vorteile erreicht.This constructive training significant advantages are achieved over the known torsional vibration dampers.
So ergibt sich durch die Form der Federstege, die bevorzugt gleichmäßig zueinander angeordnet sind, dass die Spannungsverteilung an deren Außenkanten weitgehend gleichmäßig ist. D. h., die Federscheibe weist bei gegebener Drehsteifigkeit, Materialstärke, Innen- und Außendurchmesser sowie gegebenen Verdrehwinkeln nur geringe Maximalspannungen auf. Daraus ergibt sich ein Maximum an Formänderungsenergie der Federscheibe insgesamt.Thus, due to the shape of the spring webs, which are preferably arranged uniformly relative to one another, the stress distribution at the outer edges thereof is largely uniform. D. h., The spring washer has a given torsional stiffness, material thickness, inner and outer diameter and given angles of rotation only small maximum stresses. This results in a maximum of strain energy of the spring washer as a whole.
Die Federarme sind gemäß der Erfindung jeweils im Sinne einer Parabelfeder ausgebildet, bei der sich definitionsgemäß das Flächenträgheitsmoment über die Länge des Federarmes verändert, entsprechend der Veränderung der Breite des Federarmes, die im Wesentlichen die Form einer Parabel beschreibt.According to the invention, the spring arms are each designed in the sense of a parabolic spring in which, by definition, the area moment of inertia changes over the length of the spring arm, corresponding to the change in the width of the spring arm, which essentially describes the shape of a parabola.
Die Federscheibe lässt sich im Übrigen mit geringem fertigungstechnischen Aufwand herstellen und ist gegenüber der Fertigung bekannter Federscheibe zumindest kostenneutral. Dabei besteht die Federscheibe aus Federstahlblech, beispielsweise in einer Dicke von 10 mm und einem Durchmesser von ca. 700 mm. Die Ausnehmungen, mit denen die spiralförmig angeordneten Federstege ausgebildet werden, werden bevorzugt durch Laserschneiden hergestellt.The spring washer can be produced, moreover, with little production effort and is compared to the production of known spring washer at least cost neutral. The spring washer consists of spring steel sheet, for example in a thickness of 10 mm and a diameter of about 700 mm. The recesses with which the spirally arranged spring webs are formed are preferably produced by laser cutting.
Die Anordnung der Federstege ist dabei so gewählt, dass sie in gleichem Winkelabstand zueinander stehen und in ihrer Kontur identisch sind, bei gleichgerichteter Anordnung.The arrangement of the spring bars is chosen so that they are at the same angular distance from each other and are identical in their contour, in a rectified arrangement.
Die Federcharakteristik der neuen Federscheibe kann je nach Anwendungsfall festgelegt werden, so dass die Möglichkeit besteht, die Steifigkeit und die Dämpfung entsprechend den Forderungen optimal aufeinander einzustellen.The spring characteristic of the new spring washer can be determined depending on the application, so that there is the possibility to optimally adjust the stiffness and the damping according to the requirements of each other.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous developments of the invention are characterized in the subclaims.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnungen beschrieben.An embodiment of the invention will be described below with reference to the accompanying drawings.
Es zeigen:Show it:
In der
Dieser Dämpfer
Das Gehäuse
Mit dem Schwungring
Wie besonders deutlich in der
Die Federstege
Im Beispiel ist lediglich eine Federscheibe
Anstelle der angesprochenen Möglichkeit der Befestigung der Federscheibe
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
- DE 6609934 [0003] DE 6609934 [0003]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201110103721 DE102011103721B4 (en) | 2011-06-09 | 2011-06-09 | Torsional vibration damper or absorber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110103721 DE102011103721B4 (en) | 2011-06-09 | 2011-06-09 | Torsional vibration damper or absorber |
Publications (2)
Publication Number | Publication Date |
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DE102011103721A1 true DE102011103721A1 (en) | 2012-12-13 |
DE102011103721B4 DE102011103721B4 (en) | 2013-06-20 |
Family
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DE201110103721 Active DE102011103721B4 (en) | 2011-06-09 | 2011-06-09 | Torsional vibration damper or absorber |
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DE (1) | DE102011103721B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013102817B4 (en) * | 2013-03-19 | 2017-03-16 | Thyssenkrupp Steel Europe Ag | Low-vibration flywheel |
CN108035267A (en) * | 2018-01-06 | 2018-05-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Collapse casing vibration absorber, falling rocks vibration damping hangar tunnel, design method |
EP4276330A1 (en) * | 2022-05-06 | 2023-11-15 | Hasse & Wrede GmbH | Torsional vibration damper |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013016142A1 (en) | 2013-09-27 | 2015-04-02 | Hasse & Wrede Gmbh | torsional vibration dampers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6609934U (en) | 1967-06-29 | 1972-11-30 | Holset Engineering Co | VIBRATION DAMPER WITH VISCOSE FRICTION AGENT. |
DE60210731T2 (en) * | 2001-06-06 | 2007-04-19 | Hutchinson | VIBRATION DEVICE |
-
2011
- 2011-06-09 DE DE201110103721 patent/DE102011103721B4/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6609934U (en) | 1967-06-29 | 1972-11-30 | Holset Engineering Co | VIBRATION DAMPER WITH VISCOSE FRICTION AGENT. |
DE60210731T2 (en) * | 2001-06-06 | 2007-04-19 | Hutchinson | VIBRATION DEVICE |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013102817B4 (en) * | 2013-03-19 | 2017-03-16 | Thyssenkrupp Steel Europe Ag | Low-vibration flywheel |
CN108035267A (en) * | 2018-01-06 | 2018-05-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Collapse casing vibration absorber, falling rocks vibration damping hangar tunnel, design method |
CN108035267B (en) * | 2018-01-06 | 2023-08-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Telescoping sleeve vibration damper, falling Dan Jianzhen shed tunnel and design method |
EP4276330A1 (en) * | 2022-05-06 | 2023-11-15 | Hasse & Wrede GmbH | Torsional vibration damper |
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Publication number | Publication date |
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DE102011103721B4 (en) | 2013-06-20 |
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