WO2015106744A1 - Strut bearing - Google Patents

Strut bearing Download PDF

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Publication number
WO2015106744A1
WO2015106744A1 PCT/DE2014/200632 DE2014200632W WO2015106744A1 WO 2015106744 A1 WO2015106744 A1 WO 2015106744A1 DE 2014200632 W DE2014200632 W DE 2014200632W WO 2015106744 A1 WO2015106744 A1 WO 2015106744A1
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WO
WIPO (PCT)
Prior art keywords
cap
component
guide ring
strut
bearing
Prior art date
Application number
PCT/DE2014/200632
Other languages
German (de)
French (fr)
Inventor
Andreas Wöllner
Sebastian Voss
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2015106744A1 publication Critical patent/WO2015106744A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
    • B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/761—Sealings of ball or roller bearings specifically for bearings with purely axial load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/418—Bearings, e.g. ball or roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/45—Stops limiting travel
    • B60G2204/4502—Stops limiting travel using resilient buffer
    • B60G2204/45021—Stops limiting travel using resilient buffer for limiting upper mount movement of a McPherson strut
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race

Definitions

  • the invention relates to a suspension strut bearing, which is intended for use in struts.
  • Strut bearings are part of the suspension for independent suspension.
  • the suspension supports a desired driving safety and driving comfort, as well as easy and precise steering of the wheels.
  • the suspension should keep road noise from the structure and be as light as possible.
  • the suspension strut bearing guides the shock absorber spring and forms a support surface for the shock absorber end stop.
  • the strut bearing absorbs the transmitted via the shock absorber spring and the shock absorber radial and axial forces and ensures that the shock absorber spring during steering and compression twisted friction and tension-free and thus operates without restoring moment.
  • Strut bearings are often part of the so-called McPherson struts.
  • the strut consists essentially of spring, shock absorbers and steering knuckle.
  • the suspension strut bearing is provided with a cap which is fastened to the chassis-side suspension strut dome and with a guide ring on which the shock absorber spring is supported and guided.
  • the guide ring is rotatably mounted relative to the cap. The camp allows when steering a rotation of the spring relative to the body, since during steering movements, the entire strut rotates.
  • strut bearings are often loaded by radial force components transverse to a pivot axis of the strut mount.
  • the coil spring can deflect so far that a stop buffer comes to fruition.
  • This bump stop also referred to as "bump stop”
  • the bump stop may be made of an elastomer.
  • a strut bearing which has a cap and a relative to the cap rotatable guide ring. Between cap and guide ring a thrust bearing is arranged.
  • the guide ring has a radially inner circumferential support ring for a stop buffer.
  • the object of the present invention is to provide a strut mount which is simple in construction and minimizes noise.
  • a suspension strut bearing with a cap and a relative to the cap about a rotation axis rotatably mounted guide ring, between the cap and the guide ring, a thrust bearing is arranged and wherein the cap has a one-piece cylindrical projection for a stop buffer.
  • Strut bearings have a cap and a captive connected by a snap connection with the cap guide ring. Between the cap and the guide ring a bearing is provided.
  • This camp can as Thrust or radial bearings, and be designed as a sliding bearing or as a rolling bearing.
  • the suspension strut bearings are fastened to the chassis-side strut tower or to the topmount.
  • the strut bearings are either centered on the inner diameter or outer diameter and pressed in the topmount.
  • the strut bearing according to the invention has a cap which has a one-piece cylindrical projection.
  • the cylindrical projection is formed so that it extends through an inner diameter of the guide ring, whereby the stop buffer can be supported on the cap. Since it is avoided in such an embodiment that rub against each other when steering the guide ring and the stop buffer by the resulting relative movement, a resulting noise is reduced. In addition, the life of the existing components is increased.
  • the cap is formed from a one-piece two-component component, wherein the two-component component has a hard component and a soft component.
  • the assembly can be simplified and improved.
  • the two-component component is produced, for example, by means of a two-component injection molding process in which the two components are connected to one another in a material-locking manner.
  • the cylindrical projection is formed from the hard components. This makes it possible to manufacture the cylindrical projection in one step with the cap. That is, the cap and the cylindrical projection are manufactured in one injection molding step. As a result, manufacturing costs and the number of components are saved. Due to the formation of the cylindrical approach from the hard components, this can absorb the forces acting from the stop buffer forces, without thereby to be harmed. Thus, the operation of the strut bearing can be ensured.
  • the hard component is a polyamide.
  • the use of other plastics or metallic materials is also conceivable.
  • the soft components form the seal, wherein the seal is provided both on the inner diameter and on the outer diameter of the cap.
  • the seal may be sleeve-shaped with end-side sealing lip. Any other forms of gasket and other arrangement are possible.
  • At the inner diameter of the seal simultaneously forms part of the snap connection.
  • the material of the seal may be an elastomer or another plastic having rubbery properties. The seal allows, regardless of the positioning of the strut bearing relative to the modules of the strut, a sealing against a counter-sealing surface.
  • the seal abuts the guide ring both on the inner diameter and on the outer diameter. This prevents dirt from entering the strut mount, thereby allowing radial suspension of the strut mount.
  • FIG. 1 shows a longitudinal section through a suspension strut bearing according to the invention.
  • FIG. 1 shows a longitudinal section through a suspension strut bearing 1 according to the invention.
  • the suspension strut bearing 1 has a cap 2, and a guide ring 3 which is rotatably mounted relative to the cap 2 about a rotation axis D.
  • the cap 2 is connected to the guide ring 3 by means of a snap connection 3a.
  • the cap 2 is attached to a not pictured top bearing of a chassis of a motor vehicle.
  • the guide ring 3 receives an axial end of a shock absorber spring, not shown. Spring forces of the shock absorber spring are passed over the guide ring 3 in the cap 2 and from there into the cathedral camp.
  • the guide ring 3 is mounted on the cap 2 axially in the direction of the axis of rotation D via a thrust bearing 4.
  • the thrust bearing 4 serves to transmit forces acting along the axis of rotation D from the guide ring 3 to the cap 2.
  • the thrust bearing 4 has a rolling element 6 mounted between two bearing rings 5a, 5b.
  • the cap 2 is formed as a ring-shaped two-component component 7.
  • the two-component component 7 has a hard component 8 and a soft component 9.
  • the two-component component 7 is preferably produced in a two-component injection molding process, in which first the hard component 8 is pre-injected and the soft components 9 are injected by injection to form a material bond.
  • a hard component for example, a polyamide can be used.
  • the soft component is formed of an elastomer.
  • the soft component 9 forms the seal 10 of the suspension strut bearing 1.
  • the seal 10 is formed on the inner diameter and the outer diameter of the cap 2 and abradingly abuts the guide ring 3.
  • the seal 10 is formed on the inner diameter as a sleeve-shaped approach, which also forms a part of the snap connection 3a.
  • the seal 10 is formed as a sleeve-shaped projection with sealing lips 12, 13 provided at the end.
  • the cap has an integrally formed cylindrical projection 14.
  • the cylindrical projection is formed from the hard components and serves to receive a stop buffer (not shown).
  • the cylindrical projection 14 extends through the inner diameter of the guide ring 3 therethrough.

Abstract

The invention relates to a strut bearing comprising a cap (2) and a guide ring (3) which is rotatably mounted relative to the cap (2) about a rotational axis (D) and at least one seal (10), an axial bearing (4) being arranged between the cap (2) and the guide ring (3), the cap (2) having a one-piece cylindrical projection (14) for a bump stop.

Description

Bezeichnung der Erfindung  Name of the invention
Federbeinlager Strut mounts
Beschreibung description
Gebiet der Erfindung Field of the invention
Die Erfindung betrifft ein Federbeinlager, welches zur Anwendung in Federbeinen vorgesehen ist. The invention relates to a suspension strut bearing, which is intended for use in struts.
Hintergrund der Erfindung Background of the invention
Federbeinlager sind Teil der Radaufhängung bei Einzelradaufhängungen. Die Radaufhängung unterstützt eine angestrebte Fahrsicherheit und den Fahrkomfort, sowie ein leichtes und präzises Lenken der Räder. Die Radaufhängung soll Fahrbahngeräusche vom Aufbau fernhalten und möglichst leicht sein. Je nach Ausführung führt das Federbeinlager die Stoßdämpfer-Feder und bildet eine Stützfläche für den Stoßdämpfer-Endanschlag. Das Federbeinlager nimmt die über die Stoßdämpfer-Feder bzw. dem Stoßdämpfer übertragenen Radial- und Axialkräfte auf und sorgt dafür, dass sich die Stoßdämpfer-Feder beim Lenken und Einfedern reibungsarm und verspannungsfrei verdreht und so ohne Rückstellmoment arbeitet. Strut bearings are part of the suspension for independent suspension. The suspension supports a desired driving safety and driving comfort, as well as easy and precise steering of the wheels. The suspension should keep road noise from the structure and be as light as possible. Depending on the version, the suspension strut bearing guides the shock absorber spring and forms a support surface for the shock absorber end stop. The strut bearing absorbs the transmitted via the shock absorber spring and the shock absorber radial and axial forces and ensures that the shock absorber spring during steering and compression twisted friction and tension-free and thus operates without restoring moment.
Federbeinlager sind oftmals Teil der sogenannten McPherson-Federbeine. Das Federbein besteht im Wesentlichen aus Feder, Stoßdämpfer und Achsschenkel. Das Federbeinlager ist mit einer Kappe versehen, die an dem chassisseiti- gen Federbeindom befestigt ist, sowie mit einem Führungsring, an dem die Stoßdämpfer-Feder abgestützt ist und durch diesen geführt wird. Der Führungsring ist gegenüber der Kappe drehbar gelagert. Das Lager ermöglicht beim Lenken ein Drehen der Feder gegenüber der Karosserie, da sich bei Lenkbewegungen das gesamte Federbein dreht. Strut bearings are often part of the so-called McPherson struts. The strut consists essentially of spring, shock absorbers and steering knuckle. The suspension strut bearing is provided with a cap which is fastened to the chassis-side suspension strut dome and with a guide ring on which the shock absorber spring is supported and guided. The guide ring is rotatably mounted relative to the cap. The camp allows when steering a rotation of the spring relative to the body, since during steering movements, the entire strut rotates.
Des Weiteren sind Federbeinlager häufig durch Radialkraftkomponenten, quer zu einer Schwenkachse des Federbeinlagers, belastet. Bei harten Schlägen auf das Fahrwerk kann die Schraubenfeder so weit einfedern, dass ein Anschlagpuffer zum Tragen kommt. Dieser Anschlagpuffer, der auch als „Bumpstop" bezeichnet wird, ist am Federbeinlager in einer Aufnahme aufgenommen. Der Anschlagpuffer kann beispielsweise aus einem Elastomer beste- hen. Furthermore, strut bearings are often loaded by radial force components transverse to a pivot axis of the strut mount. In the case of hard impacts on the chassis, the coil spring can deflect so far that a stop buffer comes to fruition. This bump stop, also referred to as "bump stop", is accommodated in the strut mount in a receptacle, for example, the bump stop may be made of an elastomer.
Aus der DE 10 2008 005 031 A1 ist ein Federbeinlager bekannt, das eine Kappe aufweist und einen gegenüber der Kappe drehbaren Führungsring. Zwischen Kappe und Führungsring ist ein Axiallager angeordnet. Der Führungs- ring weist einen radial innen umlaufenden Abstützring für einen Anschlagpuffer auf. From DE 10 2008 005 031 A1 a strut bearing is known, which has a cap and a relative to the cap rotatable guide ring. Between cap and guide ring a thrust bearing is arranged. The guide ring has a radially inner circumferential support ring for a stop buffer.
Zusammenfassung der Erfindung Aufgabe der vorliegenden Erfindung ist es, ein Federbeinlager zur Verfügung zustellen, welches einfach aufgebaut ist und eine minimierte Geräuschentwicklung aufweist. Summary of the Invention The object of the present invention is to provide a strut mount which is simple in construction and minimizes noise.
Erfindungsgemäß wird diese Aufgabe gelöst durch ein Federbeinlager mit einer Kappe und einem gegenüber der Kappe um einen Drehachse drehbar gelagerten Führungsring, wobei zwischen der Kappe und dem Führungsring ein Axiallager angeordnet ist und wobei die Kappe einen einteilig ausgebildeten zylindrischen Ansatz für einen Anschlagpuffer aufweist. Federbeinlager weisen eine Kappe und einen mittels einer Schnappverbindung verliersicher mit der Kappe verbundenen Führungsring auf. Zwischen der Kappe und dem Führungsring ist ein Lager vorgesehen. Dieses Lager kann als Axiallager oder Radiallager, sowie als Gleitlager oder auch als Wälzlager ausgebildet sein. According to the invention this object is achieved by a suspension strut bearing with a cap and a relative to the cap about a rotation axis rotatably mounted guide ring, between the cap and the guide ring, a thrust bearing is arranged and wherein the cap has a one-piece cylindrical projection for a stop buffer. Strut bearings have a cap and a captive connected by a snap connection with the cap guide ring. Between the cap and the guide ring a bearing is provided. This camp can as Thrust or radial bearings, and be designed as a sliding bearing or as a rolling bearing.
Mittels der Kappe werden die Federbeinlager an dem chassisseitigen Feder- beindom bzw. dem Topmount befestigt. Dabei werden die Federbeinlager entweder am Innendurchmesser oder Außendurchmesser zentriert und im Topmount eingepresst. By means of the cap, the suspension strut bearings are fastened to the chassis-side strut tower or to the topmount. The strut bearings are either centered on the inner diameter or outer diameter and pressed in the topmount.
Das erfindungsgemäße Federbeinlager weist eine Kappe auf, welche einen einteilig ausgebildeten zylindrischen Ansatz aufweist. Der zylindrische Ansatz ist derart ausgebildet, dass sich dieser durch einen Innendurchmesser des Führungsrings erstreckt, wodurch sich der Anschlagpuffer an der Kappe abstützen kann. Da bei einer derartige Ausführungsform vermieden wird, dass beim Lenken der Führungsring und der Anschlagpuffer durch die entstehenden Relativbewegung zueinander, aneinander reiben, wird eine dadurch entstehende Geräuschentwicklung reduziert. Zudem wird die Lebensdauer der vorhanden Bauteile erhöht. The strut bearing according to the invention has a cap which has a one-piece cylindrical projection. The cylindrical projection is formed so that it extends through an inner diameter of the guide ring, whereby the stop buffer can be supported on the cap. Since it is avoided in such an embodiment that rub against each other when steering the guide ring and the stop buffer by the resulting relative movement, a resulting noise is reduced. In addition, the life of the existing components is increased.
Gemäß einer alternativen Ausgestaltung der Erfindung ist die Kappe aus einem einteiligen Zweikomponentenbauteil ausgebildet, wobei das Zweikomponentenbauteil eine Hartkomponenten und eine Weichkomponenten aufweist. Mittels des Zweikomponentenbauteils kann die Baugruppe vereinfacht und verbessert werden. Das Zweikomponentenbauteil wird beispielsweise mittels eines Zweikomponentenspritzgussverfahrens hergestellt, bei dem die beiden Komponenten stoffschlüssig miteinander verbunden sind. According to an alternative embodiment of the invention, the cap is formed from a one-piece two-component component, wherein the two-component component has a hard component and a soft component. By means of the two-component component, the assembly can be simplified and improved. The two-component component is produced, for example, by means of a two-component injection molding process in which the two components are connected to one another in a material-locking manner.
In einer weiteren Ausgestaltung der Erfindung ist der zylindrische Ansatz aus der Hartkomponenten ausgebildet. Dies ermöglicht es, den zylindrischen Ansatz in einem Schritt mit der Kappe zu fertigen. Das bedeutet, Kappe und der zylindrische Ansatz werden in einem Spritzgussschritt gefertigt. Demzufolge werden Fertigungskosten und die Anzahl der Bauteile eingespart. Durch die Ausbildung des zylindrischen Ansatzes aus der Hartkomponenten, kann dieser die von dem Anschlagpuffer einwirkenden Kräfte aufnehmen, ohne dabei Be- schädigt zu werden. Somit kann die Funktionsweise des Federbeinlagers sichergestellt werden. In a further embodiment of the invention, the cylindrical projection is formed from the hard components. This makes it possible to manufacture the cylindrical projection in one step with the cap. That is, the cap and the cylindrical projection are manufactured in one injection molding step. As a result, manufacturing costs and the number of components are saved. Due to the formation of the cylindrical approach from the hard components, this can absorb the forces acting from the stop buffer forces, without thereby to be harmed. Thus, the operation of the strut bearing can be ensured.
Vorzugsweise ist die Hartkomponente ein Polyamid. Denkbar ist auch die Ver- wendung anderer Kunststoffe oder metallischer Werkstoffe. Preferably, the hard component is a polyamide. The use of other plastics or metallic materials is also conceivable.
In einer Ausgestaltung der Erfindung bildet die Weichkomponenten die Dichtung aus, wobei die Dichtung sowohl am Innendurchmesser als auch am Außendurchmesser der Kappe vorgesehen ist. Die Dichtung kann hülsenförmig mit endseitiger Dichtlippe ausgebildet sein. Es sind auch jegliche andere Formen einer Dichtung und eine andere Anordnung möglich. Am Innendurchmesser bildet die Dichtung gleichzeitig einen Teil der Schnappverbindung aus. Der Werkstoff der Dichtung kann ein Elastomer sein oder ein anderer Kunststoff, der gummiartige Eigenschaften aufweist. Die Dichtung ermöglicht, unabhängig von der Positionierung des Federbeinlagers gegenüber den Baugruppen des Federbeins, ein Abdichten gegenüber einer Gegendichtfläche. In one embodiment of the invention, the soft components form the seal, wherein the seal is provided both on the inner diameter and on the outer diameter of the cap. The seal may be sleeve-shaped with end-side sealing lip. Any other forms of gasket and other arrangement are possible. At the inner diameter of the seal simultaneously forms part of the snap connection. The material of the seal may be an elastomer or another plastic having rubbery properties. The seal allows, regardless of the positioning of the strut bearing relative to the modules of the strut, a sealing against a counter-sealing surface.
Gemäß einer alternativen Ausgestaltung der Erfindung liegt die Dichtung sowohl am Innendurchmesser als auch am Außendurchmesser schleifend an dem Führungsring an. Dadurch wird verhindert, dass Schmutz in das Federbeinlager eintreten kann, wodurch die radiale Beweglichkeit des Federbeinlagers ermöglicht wird. According to an alternative embodiment of the invention, the seal abuts the guide ring both on the inner diameter and on the outer diameter. This prevents dirt from entering the strut mount, thereby allowing radial suspension of the strut mount.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand von einer Figur dargestellt. Hereinafter, an embodiment of the invention will be illustrated with reference to a figure.
Figur 1 zeigt einen Längsschnitt durch ein erfindungsgemäßes Federbeinlager. FIG. 1 shows a longitudinal section through a suspension strut bearing according to the invention.
Detaillierte Beschreibung der Zeichnungen Figur 1 zeigt einen Längsschnitt durch ein erfindungsgemäßes Federbeinlager 1 . Das Federbeinlager 1 weist eine Kappe 2 auf, sowie einen Führungsring 3, der gegenüber der Kappe 2 um eine Drehachse D herum drehbar gelagert ist. Die Kappe 2 ist mit dem Führungsring 3 mittels einer Schnappverbindung 3a verbunden. Die Kappe 2 ist an einem nicht abgebildeten Domlager eines Chassis eines Kraftfahrzeugs befestigt. Der Führungsring 3 nimmt ein axiales Ende einer nicht dargestellten Stoßdämpfer-Feder auf. Federkräfte der Stoßdämpferfeder werden über den Führungsring 3 in die Kappe 2 und von dort in das Domlager geleitet. Detailed description of the drawings FIG. 1 shows a longitudinal section through a suspension strut bearing 1 according to the invention. The suspension strut bearing 1 has a cap 2, and a guide ring 3 which is rotatably mounted relative to the cap 2 about a rotation axis D. The cap 2 is connected to the guide ring 3 by means of a snap connection 3a. The cap 2 is attached to a not pictured top bearing of a chassis of a motor vehicle. The guide ring 3 receives an axial end of a shock absorber spring, not shown. Spring forces of the shock absorber spring are passed over the guide ring 3 in the cap 2 and from there into the cathedral camp.
Der Führungsring 3 ist über ein Axiallager 4 an der Kappe 2 axial in Richtung der Drehachse D gelagert. Das Axiallager 4 dient der Übertragung von entlang der Drehachse D wirkenden Kräften von dem Führungsring 3 auf die Kappe 2. Das Axiallager 4 weist einen zwischen zwei Lagerringen 5a, 5b gelagerten Wälzkörper 6 auf. The guide ring 3 is mounted on the cap 2 axially in the direction of the axis of rotation D via a thrust bearing 4. The thrust bearing 4 serves to transmit forces acting along the axis of rotation D from the guide ring 3 to the cap 2. The thrust bearing 4 has a rolling element 6 mounted between two bearing rings 5a, 5b.
Die Kappe 2 ist als ringförmiges Zweikomponentenbauteil 7 ausgebildet. Das Zweikomponentenbauteil 7 weist eine Hartkomponente 8 und eine Weichkomponente 9 auf. Das Zweikomponentenbauteil 7 ist bevorzugt in einem Zwei- komponentenspritzgießverfahren hergestellt, in dem zuerst die Hartkomponente 8 vorgespritzt und die Weichkomponenten 9 unter Bildung eines Stoffschlusses nachgespritzt wird. Als Hartkomponente kann bspw. ein Polyamid verwendet werden. Die Weichkomponente ist aus einem Elastomer ausgebildet. The cap 2 is formed as a ring-shaped two-component component 7. The two-component component 7 has a hard component 8 and a soft component 9. The two-component component 7 is preferably produced in a two-component injection molding process, in which first the hard component 8 is pre-injected and the soft components 9 are injected by injection to form a material bond. As a hard component, for example, a polyamide can be used. The soft component is formed of an elastomer.
Die Weichkomponente 9 bildet die Dichtung 10 des Federbeinlagers 1 aus. Die Dichtung 10 ist dabei am Innendurchmesser und am Außendurchmesser der Kappe 2 ausgebildet und liegt schleifend am Führungsring 3 an. Die Dichtung 10 ist am Innendurchmesser als hülsenförmiger Ansatz ausgebildet, welcher zudem einen Teil der Schnappverbindung 3a ausbildet. Am Außendurchmesser der Kappe 2 ist die Dichtung 10 als hülsenförmiger Ansatz mit am Ende versehenen Dichtlippen 12, 13 ausgebildet. Wie ferner aus der Figur 1 ersichtlich ist, weist die Kappe einen einteilig ausgebildeten zylindrischen Ansatz 14 auf. Der zylindrische Ansatz ist aus der Hartkomponenten ausgebildet und dient zur Aufnahme eines nicht dargestell- ten Anschlagpuffers. Der zylindrische Ansatz 14 erstreckt sich durch den Innendurchmesser des Führungsrings 3 hindurch. The soft component 9 forms the seal 10 of the suspension strut bearing 1. The seal 10 is formed on the inner diameter and the outer diameter of the cap 2 and abradingly abuts the guide ring 3. The seal 10 is formed on the inner diameter as a sleeve-shaped approach, which also forms a part of the snap connection 3a. At the outer diameter of the cap 2, the seal 10 is formed as a sleeve-shaped projection with sealing lips 12, 13 provided at the end. As can also be seen from FIG. 1, the cap has an integrally formed cylindrical projection 14. The cylindrical projection is formed from the hard components and serves to receive a stop buffer (not shown). The cylindrical projection 14 extends through the inner diameter of the guide ring 3 therethrough.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
D Drehachse D rotation axis
1 Federbeinlager  1 suspension strut bearing
2 Kappe  2 cap
3 Führungsring  3 guide ring
3a Schnappverbindung  3a snap connection
4 Axiallager  4 thrust bearings
5a Lagerring 5a bearing ring
5b Lagerring 5b bearing ring
6 Wälzkörper  6 rolling elements
7 Zweikomponentenbauteil  7 two-component component
8 Hartkomponente  8 hard component
9 Weichkomponente  9 soft component
10 Dichtung  10 seal
hülsenförmiger Ansatz  sleeve-shaped approach
12 Dichtlippe  12 sealing lip
13 Dichtlippe  13 sealing lip
14 zylindrischer Ansatz  14 cylindrical approach

Claims

Patentansprüche claims
1 . Federbeinlager mit einer Kappe (2) und mit einem gegenüber der Kappe (2) um eine Drehachse (D) drehbar gelagerten Führungsring (3) und mit wenigstens einer Dichtung (10), wobei zwischen der Kappe (2) und dem Führungsring (3) ein Axiallager (4) angeordnet ist, dadurch gekennzeichnet, dass die Kappe (2) einen einteilig ausgebildeten zylindrischen Ansatz (14) für einen Anschlagpuffer aufweist. 1 . Strut bearing with a cap (2) and with respect to the cap (2) about a rotation axis (D) rotatably mounted guide ring (3) and with at least one seal (10), wherein between the cap (2) and the guide ring (3) a thrust bearing (4) is arranged, characterized in that the cap (2) has a one-piece cylindrical projection (14) for a stop buffer.
2. Federbeinlager nach Anspruch 1 , wobei die Kappe (2) aus einem einteiligen Zweikomponentenbauteil (7) ausgebildet ist, wobei das Zweikomponentenbauteil (7) eine Hartkomponente (8) und eine Weichkomponente (9) aufweist. Second suspension strut bearing according to claim 1, wherein the cap (2) is formed of a one-piece two-component component (7), wherein the two-component component (7) has a hard component (8) and a soft component (9).
3. Federbeinlager nach einem de vorhergehenden Ansprüche, wobei der zylindrische Ansatz (14) aus der Hartkomponente (8) ausgebildet ist. 3. Strut bearing according to one of the preceding claims, wherein the cylindrical projection (14) made of the hard component (8) is formed.
4. Federbeinlager nach Anspruch 2, wobei die Weichkomponente (9) die Dichtung (10) ausbildet und wobei die Dichtung (10) sowohl am Innendurchmesser als auch am Außendurchmesser der Kappe (2) vorgesehen ist. The suspension strut bearing according to claim 2, wherein the soft component (9) forms the gasket (10), and wherein the gasket (10) is provided on both the inner diameter and the outer diameter of the cap (2).
5. Federbeinlager nach Anspruch 3, wobei die Dichtung (10) sowohl am Innendurchmesser als auch am Außendurchmesser schleifend an dem Führungsring (3) anliegt. 5. suspension strut bearing according to claim 3, wherein the seal (10), both on the inner diameter and on the outer diameter abrading the guide ring (3).
PCT/DE2014/200632 2014-01-14 2014-11-12 Strut bearing WO2015106744A1 (en)

Applications Claiming Priority (2)

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DE102014200482.9 2014-01-14
DE102014200482.9A DE102014200482B4 (en) 2014-01-14 2014-01-14 strut bearing

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FR2778606A1 (en) * 1998-05-14 1999-11-19 Skf France SUSPENSION STOP DEVICE
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EP1172238A1 (en) * 2000-07-12 2002-01-16 Allevard Rejna Autosuspensions Device for positioning an end of a coil spring for a suspension
US6736381B2 (en) * 2000-05-30 2004-05-18 Snr Roulements Suspension stop device
EP1574741A1 (en) * 2004-03-12 2005-09-14 Kayaba Industry Co., Ltd. Hydraulic shock absorber
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176571A (en) * 1985-04-24 1986-12-31 Honda Motor Co Ltd Shock absorber mount assembly for motor vehicle suspension
FR2778606A1 (en) * 1998-05-14 1999-11-19 Skf France SUSPENSION STOP DEVICE
EP1072450A2 (en) * 1999-07-30 2001-01-31 Firma Carl Freudenberg Strut support bearing
US6736381B2 (en) * 2000-05-30 2004-05-18 Snr Roulements Suspension stop device
EP1172238A1 (en) * 2000-07-12 2002-01-16 Allevard Rejna Autosuspensions Device for positioning an end of a coil spring for a suspension
EP1574741A1 (en) * 2004-03-12 2005-09-14 Kayaba Industry Co., Ltd. Hydraulic shock absorber
DE102008005031A1 (en) 2008-01-22 2009-07-23 Schaeffler Kg Strut mounts
US8328427B2 (en) * 2008-08-13 2012-12-11 Schaeffler Technologies AG & Co. KG Sliding strut bearing
FR2990252A1 (en) * 2012-05-04 2013-11-08 Skf Ab METHOD FOR MANUFACTURING A SUSPENSION STOP DEVICE, DEVICE AND FORCE LEG COMPRISING SUCH A DEVICE

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