DE102009019856A1 - Disk spring arrangement, has laminated disk springs arranged together forming laminated disk spring, and intermediate layers arranged between springs to enable relative motion of springs that are separated by shearing strain of layers - Google Patents

Disk spring arrangement, has laminated disk springs arranged together forming laminated disk spring, and intermediate layers arranged between springs to enable relative motion of springs that are separated by shearing strain of layers Download PDF

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Publication number
DE102009019856A1
DE102009019856A1 DE200910019856 DE102009019856A DE102009019856A1 DE 102009019856 A1 DE102009019856 A1 DE 102009019856A1 DE 200910019856 DE200910019856 DE 200910019856 DE 102009019856 A DE102009019856 A DE 102009019856A DE 102009019856 A1 DE102009019856 A1 DE 102009019856A1
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Germany
Prior art keywords
springs
disk spring
intermediate layer
intermediate layers
layers
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Ceased
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DE200910019856
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German (de)
Inventor
Peter Dr. Buchhagen
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Christian Bauer GmbH and Co KG
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Christian Bauer GmbH and Co KG
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Priority to DE200910019856 priority Critical patent/DE102009019856A1/en
Publication of DE102009019856A1 publication Critical patent/DE102009019856A1/en
Ceased legal-status Critical Current

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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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/32—Belleville-type 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
    • F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

The arrangement (1) has laminated disk springs (2, 2', 2'') arranged together for forming a laminated disk spring. Flexible intermediate layers (3, 3') are arranged between the laminated disk springs to enable relative motion of the disk springs that are separated by shearing strain of the intermediate layers. A shear modulus of material used for the intermediate layers is smaller than modulus of elasticity of the disk springs. The material used for the intermediate layers consists of rubber based-elastomer.

Description

Die vorliegende Erfindung betrifft eine Tellerfederanordnung.The The present invention relates to a cup spring assembly.

Tellerfedern bieten Bauart bedingt große Federkräfte bei vergleichsweise kleinem Federdurchmesser. Für diverse technische Anwendungen sind aber noch größere Kräfte notwendig.Disc springs offer design conditionally large spring forces with a comparatively small spring diameter. For various technical applications But even greater forces are necessary.

Eine Kraftsteigerung von Federn kann allgemein durch paralleles Koppeln erreicht werden. Bei Tellerfedern wird dies durch paralleles Schichten zu Federpaketen ausgeführt (siehe 1). Problematisch sind Federpakete bezüglich der Reibungseffekte, die – je nach Oberfläche und Anzahl der Tellerfedern im Paket – zu sehr großen Kraftunterschieden zwischen Be- und Entlastung führen (mechanische Hysterese). Die Hysterese ist bei nahezu allen technischen Federanwendungen ein aus vielfachen Gründen unerwünschter Effekt. Die Reibung kann durch Einstellen der Oberflächen und Schmierung vermindert werden, jedoch ist deren Wirkung limitiert und durch Abnutzung auch auf eine begrenzte Anzahl von Einfederungen begrenzt. Eine Analyse der diesem Reibungseffekt zugrunde liegenden Ursachen zeigt, dass es sich hier um – im Vergleich zu den Federabmessungen – sehr kurze radiale Relativbewegungen der in Berührung stehenden Federoberflächen bei moderaten Flächenpressungen handelt.An increase in force of springs can generally be achieved by parallel coupling. In disc springs this is done by parallel layers to spring packs (see 1 ). Problematic are spring assemblies with respect to the friction effects, which - depending on the surface and number of disc springs in the package - lead to very large force differences between loading and unloading (mechanical hysteresis). Hysteresis is an undesirable effect for almost all technical spring applications for a variety of reasons. The friction can be reduced by adjusting the surfaces and lubrication, but their effect is limited and limited by wear on a limited number of deflections. An analysis of the underlying causes of this friction effect shows that this is - in comparison to the spring dimensions - very short radial relative movements of the spring surfaces in contact with moderate surface pressures.

Die Aufgabe der vorliegenden Erfindung ist es, eine verbesserte Tellerfederanordnung anzugeben, die insbesondere reduzierte Hystereseeffekte aufweist.The Object of the present invention is an improved disc spring assembly indicate, in particular, reduced hysteresis effects.

Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This Problem is inventively the subject of the independent Claim solved. Advantageous embodiments are the subject of the dependent Claims.

Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, eine Relativbewegung zwischen zwei Tellerfedern einer erfindungsgemäßen Tellerfederanordnung nun nicht wie bisher durch Gleiten zu überwinden, sondern diese durch elastische Scherung zumindest einer Zwischenschicht aufzunehmen. Die Beschaffenheit der Zwischenschicht ist dabei so zu wählen, dass sie alle Bewegungen und Drücke elastisch aufnehmen kann, ohne dass sie sich relativ zur Oberfläche der Tellerfedern bewegen muss. Dies wird im Allgemeinen dadurch erreicht, dass der Schermodul des für die Zwischenschicht verwendeten Materials sehr viel kleiner als der Elastizitätsmodul der Tellerfedern gewählt wird. Festigkeit der Zwischenschicht, Schichtdicke und Flächenbedeckung sind dem Anwendungsfall anzupassen. Die Zwischenschicht(en) kann/können sowohl als separate Lage wie auch ein- oder beidseitig fest mit der jeweiligen Tellerfeder verbunden ausgeführt werden, ist/sind aber auch als Beschichtung der Tellerfeder ausführbar. Die parallel geschichteten Tellerfedern sind somit reibungsfrei elastisch gekoppelt.The The present invention is based on the general idea, a Relative movement between two disc springs of a disc spring assembly according to the invention not to overcome as before by gliding, but this through absorb elastic shear at least one intermediate layer. The nature of the intermediate layer is to be chosen so that they all movements and pressures can absorb elastically without being relative to the surface of the Disc springs must move. This is generally achieved by that the shear modulus of for the intermediate layer used material much smaller than that modulus of elasticity the disc springs chosen becomes. Strength of the intermediate layer, layer thickness and area coverage are to be adapted to the application. The intermediate layer (s) can / both as a separate location as well as one or both sides firmly with the respective Connected plate spring executed are, is / but are also executable as a coating of the diaphragm spring. The parallel laminated disc springs are thus frictionless elastic coupled.

Die Wahl der elastischen Moduli des Materials der Zwischenschicht und deren Abmessungen hat eine Rückwirkung auf das Federverhalten des Pakets.The Choice of elastic Moduli of the material of the intermediate layer and their dimensions have a retroactive effect on the spring behavior of the package.

Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Further important features and advantages of the invention will become apparent from the Dependent claims, from the drawings and from the associated description of the figures the drawings.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It it is understood that the above and the following yet to be explained features not only in the specified combination, but also in other combinations or alone, without to leave the scope of the present invention.

Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und wird in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.preferred embodiments The invention are illustrated in the drawings and in the following description explains the same reference numerals to the same or similar or functionally identical Refer to components.

Dabei zeigen, jeweils schematisch,there show, in each case schematically,

1 Tellerfederanordnung nach dem Stand der Technik, 1 Disc spring arrangement according to the prior art,

2 eine erfindungsgemäße Tellerfederanordnung. 2 a disc spring arrangement according to the invention.

Entsprechend den 1 und 2, weist eine erfindungemäße Tellerfederanordnung 1, mehrere zu einem Tellerfederpaket geschichtete Tellerfedern 2, 2', 2'' auf.According to the 1 and 2 has a erfindungemäße plate spring assembly 1 , several stratified to a plate spring package plate springs 2 . 2 ' . 2 '' on.

Erfindungsgemäß ist nun bei der Tellerfederanordnung 1 nach 2 zwischen den einzelnen Tellerfedern 2, 2', 2'' jeweils Zwischenschicht 3, 3' vorgesehen, die eine Relativbewegung zwischen zwei benachbarten Tellerfedern 2, 2' der erfindungsgemäßen Tellerfederanordnung 1 nicht wie bisher durch Gleiten überwindet, sondern diese durch elastische Scherung der Zwischenschicht 3, 3' aufnimmt. Die Beschaffenheit der Zwischenschicht 3, 3' ist dabei so zu wählen, dass sie alle Bewegungen und Drücke elastisch aufnehmen kann, ohne dass sie sich relativ zur Oberfläche der Tellerfedern 2, 2', 2'' bewegen muss. Hierbei kann beispielsweise ein auf Kautschuk basierendes Elastomer verwendet werden. Dies wird im Allgemeinen dadurch erreicht, dass der Schermodul des für die Zwischenschicht 3, 3' verwendeten Materials sehr viel kleiner als der Elastizitätsmodul der Tellerfedern 2, 2', 2'' gewählt wird. Festigkeit der Zwischenschicht 3, 3', Schichtdicke und Flächenbedeckung sind dem Anwendungsfall anzupassen. Die Zwischenschicht(en) 3, 3' kann/können sowohl als separate Lage wie auch ein- oder beidseitig fest mit der jeweiligen Tellerfeder 2, 2', 2'' verbunden ausgeführt werden, ist/sind aber auch als Beschichtung der Tellerfeder 2, 2', 2'' ausführbar.According to the invention is now in the disc spring assembly 1 to 2 between the individual disc springs 2 . 2 ' . 2 '' each intermediate layer 3 . 3 ' provided, which is a relative movement between two adjacent disc springs 2 . 2 ' the plate spring assembly according to the invention 1 not as previously overcome by sliding, but this by elastic shear of the intermediate layer 3 . 3 ' receives. The nature of the intermediate layer 3 . 3 ' It should be chosen so that it can absorb all movements and pressures elastically, without being relative to the surface of the disc springs 2 . 2 ' . 2 '' has to move. In this case, for example, a rubber-based elastomer can be used. This is generally achieved by using the shear modulus of the intermediate layer 3 . 3 ' used material much smaller than the elastic modulus of the disc springs 2 . 2 ' . 2 '' is selected. Strength of the intermediate layer 3 . 3 ' , Layer thickness and area coverage must be adapted to the application. The Intermediate layer (s) 3 . 3 ' can / can both as a separate location as well as one or both sides firmly with the respective diaphragm spring 2 . 2 ' . 2 '' be executed connected, is / are but also as a coating of the diaphragm spring 2 . 2 ' . 2 '' executable.

Claims (4)

Tellerfederanordnung (1) mit zumindest zwei geschichteten Tellerfedern (2, 2'), die zusammen ein Tellerfederpakt bilden, wobei zwischen den zumindest zwei geschichteten Tellerfedern (2, 2') eine elastische Zwischenschicht (3) angeordnet ist, die eine Relativbewegung der beiden durch die Zwischenschicht getrennten Tellerfedern (2, 2') mittels Scherung ermöglicht.Belleville spring arrangement ( 1 ) with at least two layered disc springs ( 2 . 2 ' ), which together form a disc spring pact, wherein between the at least two layered disc springs ( 2 . 2 ' ) an elastic intermediate layer ( 3 ) is arranged, the a relative movement of the two separated by the intermediate layer disc springs ( 2 . 2 ' ) by means of shear. Tellerfederanordnung nach Anspruch 1, dadurch gekennzeichnet, dass ein Schermodul des für die Zwischenschicht (3, 3') verwendeten Materials kleiner ist als der Elastizitätsmodul der Tellerfedern (2, 2', 2'').Disc spring arrangement according to claim 1, characterized in that a shear modulus of the intermediate layer ( 3 . 3 ' ) is smaller than the elastic modulus of the disc springs ( 2 . 2 ' . 2 '' ). Tellerfederanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, – dass die Zwischenschicht(en) (3, 3') als separate Lage wie auch ein- oder beidseitig fest mit der jeweiligen Tellerfeder (2, 2', 2'') verbunden ist/sind, oder – dass die Zwischenschichten (3, 3') eine Beschichtung der Tellerfeder (2, 2', 2'') ist.Disc spring arrangement according to claim 1 or 2, characterized in that - the intermediate layer (s) ( 3 . 3 ' ) as a separate position as well as one or both sides firmly with the respective disc spring ( 2 . 2 ' . 2 '' ) is connected, or - that the intermediate layers ( 3 . 3 ' ) a coating of the diaphragm spring ( 2 . 2 ' . 2 '' ). Tellerfederanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das für die Zwischenschicht (3, 3') verwendete Material ein auf Kautschuk basierendes Elastomer aufweist oder ist.Diaphragm spring arrangement according to one of claims 1 to 3, characterized in that for the intermediate layer ( 3 . 3 ' ) has or is a rubber-based elastomer.
DE200910019856 2009-05-06 2009-05-06 Disk spring arrangement, has laminated disk springs arranged together forming laminated disk spring, and intermediate layers arranged between springs to enable relative motion of springs that are separated by shearing strain of layers Ceased DE102009019856A1 (en)

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DE200910019856 DE102009019856A1 (en) 2009-05-06 2009-05-06 Disk spring arrangement, has laminated disk springs arranged together forming laminated disk spring, and intermediate layers arranged between springs to enable relative motion of springs that are separated by shearing strain of layers

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DE200910019856 DE102009019856A1 (en) 2009-05-06 2009-05-06 Disk spring arrangement, has laminated disk springs arranged together forming laminated disk spring, and intermediate layers arranged between springs to enable relative motion of springs that are separated by shearing strain of layers

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013006432A1 (en) 2013-04-15 2014-10-16 Thyssenkrupp Presta Aktiengesellschaft Double wave spring with damping intermediate layer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7411298U (en) * 1973-04-09 1974-07-18 Automotive Products Ltd Spring brake actuator
US4968010A (en) * 1988-03-09 1990-11-06 Odobasic Steven Lazar Slotted disc and elastomeric matrix damper assembly
DE3737136C2 (en) * 1986-11-03 2003-04-17 Valeo Coupling device with an elastic unit, which has essentially ring-shaped parts and application, in particular in a pulley for a control gear and a clutch mechanism
EP1643155A1 (en) * 2003-06-11 2006-04-05 Xuejun Room 1812 Yangguang Bldg. Yin Compound spring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7411298U (en) * 1973-04-09 1974-07-18 Automotive Products Ltd Spring brake actuator
DE3737136C2 (en) * 1986-11-03 2003-04-17 Valeo Coupling device with an elastic unit, which has essentially ring-shaped parts and application, in particular in a pulley for a control gear and a clutch mechanism
US4968010A (en) * 1988-03-09 1990-11-06 Odobasic Steven Lazar Slotted disc and elastomeric matrix damper assembly
EP1643155A1 (en) * 2003-06-11 2006-04-05 Xuejun Room 1812 Yangguang Bldg. Yin Compound spring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013006432A1 (en) 2013-04-15 2014-10-16 Thyssenkrupp Presta Aktiengesellschaft Double wave spring with damping intermediate layer
WO2014170125A1 (en) 2013-04-15 2014-10-23 Thyssenkrupp Presta Ag Double wave spring with insulating intermediate layer
US9409594B2 (en) 2013-04-15 2016-08-09 Thyssenkrupp Presta Ag Power steering system incorporating double wave spring with insulating intermediate layer

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