WO2014090870A1 - Châssis de véhicule équipé d'un support acoustique - Google Patents

Châssis de véhicule équipé d'un support acoustique Download PDF

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Publication number
WO2014090870A1
WO2014090870A1 PCT/EP2013/076218 EP2013076218W WO2014090870A1 WO 2014090870 A1 WO2014090870 A1 WO 2014090870A1 EP 2013076218 W EP2013076218 W EP 2013076218W WO 2014090870 A1 WO2014090870 A1 WO 2014090870A1
Authority
WO
WIPO (PCT)
Prior art keywords
discs
air spring
fixed
disc
spring cover
Prior art date
Application number
PCT/EP2013/076218
Other languages
German (de)
English (en)
Inventor
Ralf Pielock
Original Assignee
Continental Teves Ag & Co. Ohg
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 Continental Teves Ag & Co. Ohg filed Critical Continental Teves Ag & Co. Ohg
Publication of WO2014090870A1 publication Critical patent/WO2014090870A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • 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
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • B60G15/14—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • 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
    • B60G2204/126—Mounting of pneumatic springs
    • 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
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall

Definitions

  • the present invention relates to a vehicle chassis with a body section and an air spring strut arranged thereon with an air spring cover and an acoustic bearing arranged between air spring cover and body section for the acoustic decoupling of the air spring strut from the associated body section.
  • air spring struts to the vehicle body is usually via studs or screws.
  • the stud bolts or associated nuts are attached to the air spring cover in a gastight manner.
  • the air spring cover lies directly with its surface on the body, so that acoustic abnormalities, such as of switching valves, are transmitted directly to the body via the air spring cover.
  • acoustic bearings are arranged, which provide an acoustic decoupling.
  • an acoustic bearing discs of elastomeric material in particular polyurethane discs, were used here. However, such an interposed disc can always transmit only compressive forces from the air spring cover to the body.
  • the present invention has for its object to provide a vehicle chassis of the type described above, with an acoustic decoupling while transmitting possibility of compressive and tensile forces can be achieved.
  • the acoustic bearing has the following features: It has two fixed superimposed discs, between and under the discs is in each case a disc of elastomeric material for acoustic decoupling and a solid disc is firmly connected to the body portion, while the other fixed disc is firmly connected to the air spring cover.
  • the invention enables acoustic decoupling by means of discs of elastomeric material, in particular polyurethane discs, with simultaneous transmission of compressive and / or tensile forces. Since of the at least two fixed discs a disc only with the air spring cover and the other disc is connected only to the body portion, wherein an acoustically decoupled by the sandwiched therebetween and discs of elastomeric material, tensile forces can be transmitted in addition to compressive forces, because no direct mechanical connection by screwing etc. exists between the air spring cover and the body section. Rather, the discs are clamped together.
  • a particularly preferred embodiment of the invention is characterized in that the acoustic bearing has three fixed discs, wherein the two discs of elastomeric material are located between the three fixed discs and the middle fixed disc is firmly connected to the body portion, while the two outer discs are firmly connected to the air spring cover.
  • the connection of the solid discs can also be designed vice versa.
  • An acoustic decoupling of the air spring cover from the body is achieved, wherein the inventively embodied acoustic bearing has a particularly low overall height.
  • a separate tuning for tensile and compressive direction can be performed, and the bearing is easily integrated into existing concepts. Extensive geometric adjustments for adaptation can be carried out in a simple manner.
  • the bearing is connected at low cost compared to other acoustic decoupling for tensile and compressive loads.
  • the acoustic bearing is suitable for all air springs with which axial tensile and compressive forces must be transmitted. Forces can be transmitted directly, and a high resistance against one-sided loads, such as gimbals, achieved. Depending on the design, the bearing is easily replaceable. A central mounting of the damper bearing and sealing cover with mounted acoustic bearing is possible.
  • the fixed disks have a plurality of individual connecting sections in the circumferential direction. These connecting portions may be designed so that the connection between the fixed disc (the solid discs) and the air spring cover and between the fixed disc (the solid discs) and the body portion respectively via bolts and nuts, wherein the bolts extend contactlessly through the other discs through.
  • the one bolt fixed to the air spring cover and the other bolts are firmly connected to the disc for the body portion.
  • a spacer sleeve is preferably arranged between the two outer disks in the respective connecting portion.
  • the two outer disks are kept at a distance from each other, so that between them the middle disk and the two elastomeric disks can be arranged.
  • the fixed disk connected to the body section expediently has an increase in the respective connecting section, so that here too the corresponding distances can be maintained and the connection with the body section can be established.
  • the acoustic bearing is structurally specially designed so that the discs have holes in the region of the connecting portions of the other discs and exclude lateral contact with the connections of the other discs. This ensures that the acoustic bearing of the construction described above can be realized.
  • the distance between the upper disc and the body portion is inventively greater than the axial travel of the lower disc of elastomeric material. In this way, no contact between the upper disc and the body. Also, the distance of the bolts, which serve to fasten the disc on the body portion of the air spring cover is greater than the axial travel of the lower disc made of elastomeric material.
  • an embodiment is preferred in which three fixed disks are provided. Ultimately, however, only two solid discs may be present. For example, therefore, the lower fixed disc can be omitted, so that the disc of elastomeric material can rest directly on the air spring cover.
  • the discs of elastomeric material in particular the polyurethane discs, have different thicknesses, have elevations or recesses and / or have an irregular outer geometry.
  • the discs of elastomeric material may also have a one-sided geometry in order to achieve the best acoustic properties in Hauptkardanikraum.
  • the discs of elastomeric material may be formed so that they have a "collar" in the region of the intended spacer sleeve and have distance increases in order to avoid radial contact.
  • the center disc may have different heights for targeted power transmission and acoustic design.
  • the number of bolts and distance ranges can be varied.
  • the bolts may also be formed as crimped pins / rivets.
  • two or more intermediate disks may be used to achieve a targeted tuning.
  • the air spring cover depressions or indentations In the region of the heads of the bolts of the disc, which is connected to the body portion, or the central disc, the air spring cover depressions or indentations have to avoid contact.
  • the thicknesses of the solid discs and the discs of elastomeric material may vary in size to suit the conditions.
  • the discs of elastomeric material may also be designed as acoustically suitable rubber discs.
  • the solid discs are preferably made of steel, aluminum or plastic.
  • the contact surfaces to the body are geometrically adapted to the body.
  • Figure 1 is a vertical section through a part of a
  • Figure 2 is a perspective view of the air spring of Figure 1 with acoustic bearings
  • FIG. 3 is a perspective view of the acoustic bearing of FIG. 2.
  • Figure 1 shows a part of an air spring strut, wherein the air spring cover 1 is shown.
  • the air spring cover 1 is attached to a body section 12 via an acoustic bearing.
  • the Acoustic bearing consists of three solid discs 2, 4, 6 made of metal and two polyurethane discs 3, 5 together.
  • the lower fixed disc 2 is located directly on the air spring cover 1. Between the middle fixed disc 4 and the lower fixed disc 2 there is a polyurethane disc 3. An identical polyurethane disc 5 is located between the middle fixed disc 4 and the upper fixed disc 6.
  • the lower and the upper fixed disk 2, 6 are connected to each other via three spacers 7. Through the spacer sleeve 7 and the discs 2, 6 each have a fixedly connected to the air spring cover 1 bolt 8. An upper nut screwed 9 holds the discs 2, 6 and the spacers 7 together.
  • the centrally arranged fixed disc 4 has holes in the region of the spacers 7, which are so far greater that a lateral contact with the spacers is excluded. Part of the middle fixed disk 4 are also spacer heights 13, through which a bolt 10 extends in each case. The bolts 10 are fixedly connected to the central fixed disk 4. About the distance increases 13, the central disc 4 is bolted using the bolts 10 and nuts 11 fixed to the body portion 12.
  • FIG. 2 shows a three-dimensional view of the air spring provided with the acoustic bearing. It can be seen that three bolts 8 are distributed over the circumference of the acoustic bearing for fixing the two fixed disks 2 and 6 with the spacer sleeve 7 arranged therebetween. On the other hand, three bolts 10 serve to fix the middle fixed disc 4 by means of their distance increases 13 on the body portion 12.
  • the discs 3, 5 made of polyurethane are located between the upper and lower fixed disc 6, 2 and the middle fixed disc 4 and cause an acoustic decoupling of the air suspension unit from the body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vibration Prevention Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention concerne un châssis de véhicule comprenant une partie de carrosserie et une jambe de suspension pneumatique montée sur cette dernière, comportant un élément de recouvrement de suspension pneumatique et un support acoustique disposé entre l'élément de recouvrement de suspension pneumatique et la partie de carrosserie, servant à isoler acoustiquement la jambe de suspension pneumatique de la partie de carrosserie associée. Dans un mode de réalisation particulier, ce support acoustique comprend trois disques fixes superposés, entre lesquels se trouvent des disques en matériau élastomère servant à l'isolation acoustique. Un disque fixe est solidarisé à la partie de carrosserie, tandis que les deux autres disques fixes sont solidarisés à l'élément de recouvrement de suspension pneumatique. Ce support acoustique est ainsi approprié pour transmettre des forces de traction.
PCT/EP2013/076218 2012-12-14 2013-12-11 Châssis de véhicule équipé d'un support acoustique WO2014090870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210223216 DE102012223216A1 (de) 2012-12-14 2012-12-14 Fahrzeugfahrwerk mit Akustiklager
DE102012223216.8 2012-12-14

Publications (1)

Publication Number Publication Date
WO2014090870A1 true WO2014090870A1 (fr) 2014-06-19

Family

ID=49753186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/076218 WO2014090870A1 (fr) 2012-12-14 2013-12-11 Châssis de véhicule équipé d'un support acoustique

Country Status (2)

Country Link
DE (1) DE102012223216A1 (fr)
WO (1) WO2014090870A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015118411A1 (de) * 2015-10-28 2017-05-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Federanordnung für ein Kraftfahrzeug
DE102019201357A1 (de) * 2019-02-04 2020-08-06 Continental Teves Ag & Co. Ohg Vorrichtung zur Befestigung einer Luftfeder mit akustischer Entkopplung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128310B (de) * 1956-03-07 1962-04-19 Ford Werke Ag Mit einer Federung vereinigter hydraulischer Teleskop-Stossdaempfer fuer Kraftfahrzeuge
EP0218824A2 (fr) * 1985-10-11 1987-04-22 S.A.G.A. - SOCIETA' APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. Suspension élastique pour roue de véhicule à moteur
JPH03244844A (ja) * 1990-02-20 1991-10-31 Tokico Ltd エアサスペンション
FR2728948A1 (fr) * 1994-12-28 1996-07-05 Renault Ressort pneumatique a deux chambres a alimentation independante, vehicule automobile a suspension comportant un tel ressort et ensemble ressort-amortisseur de suspension
US20020145242A1 (en) * 2000-11-20 2002-10-10 Honda Giken Kogyo Kabushiki Kaisha Liquid-encapsulated damper mount and hydraulic damper mounting structure in suspension of automobile
DE10225354A1 (de) * 2002-06-07 2004-01-15 Daimlerchrysler Ag Kopflager eines Kraftfahrzeugfederbeins
US20050029062A1 (en) * 2003-08-07 2005-02-10 Simon Dean Front strut air spring suspension system
EP2390120A1 (fr) * 2010-05-26 2011-11-30 Continental Teves AG & Co. oHG Découplage acoustique dans des véhicules automobiles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9313417U1 (de) * 1993-09-06 1993-11-04 Kugelmann, Siegfried, 87675 Stötten Hardy-Scheibe
DE102010026002A1 (de) * 2010-07-03 2011-03-10 Daimler Ag Luftfeder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128310B (de) * 1956-03-07 1962-04-19 Ford Werke Ag Mit einer Federung vereinigter hydraulischer Teleskop-Stossdaempfer fuer Kraftfahrzeuge
EP0218824A2 (fr) * 1985-10-11 1987-04-22 S.A.G.A. - SOCIETA' APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. Suspension élastique pour roue de véhicule à moteur
JPH03244844A (ja) * 1990-02-20 1991-10-31 Tokico Ltd エアサスペンション
FR2728948A1 (fr) * 1994-12-28 1996-07-05 Renault Ressort pneumatique a deux chambres a alimentation independante, vehicule automobile a suspension comportant un tel ressort et ensemble ressort-amortisseur de suspension
US20020145242A1 (en) * 2000-11-20 2002-10-10 Honda Giken Kogyo Kabushiki Kaisha Liquid-encapsulated damper mount and hydraulic damper mounting structure in suspension of automobile
DE10225354A1 (de) * 2002-06-07 2004-01-15 Daimlerchrysler Ag Kopflager eines Kraftfahrzeugfederbeins
US20050029062A1 (en) * 2003-08-07 2005-02-10 Simon Dean Front strut air spring suspension system
EP2390120A1 (fr) * 2010-05-26 2011-11-30 Continental Teves AG & Co. oHG Découplage acoustique dans des véhicules automobiles

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Publication number Publication date
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