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WO2003019036A1 - Element constitutif d'automobile amorti en oscillations - Google Patents

Element constitutif d'automobile amorti en oscillations Download PDF

Info

Publication number
WO2003019036A1
WO2003019036A1 PCT/DE2002/002522 DE0202522W WO03019036A1 WO 2003019036 A1 WO2003019036 A1 WO 2003019036A1 DE 0202522 W DE0202522 W DE 0202522W WO 03019036 A1 WO03019036 A1 WO 03019036A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
vibration
din
component
disc
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.)
Ceased
Application number
PCT/DE2002/002522
Other languages
German (de)
English (en)
Inventor
Norbert Hoffmann
Michael Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2003019036A1 publication Critical patent/WO2003019036A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control
    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
    • 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
    • F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels

Definitions

  • the invention is based on a vibration-damped component of a motor vehicle, in particular a vibration-damped brake disc, according to the preamble of claim 1, and on a method for producing cast vibration-damped components of a motor vehicle, in particular for the production of cast vibration-damped brake discs according to the preamble of claim 6 ,
  • Braking or corrosion can cause unevenness, ripples or changing friction conditions on the friction surfaces of brake discs, which, when the brake pads are pressed on, lead to vibration excitation and thus to structure-borne noise, in particular to bending vibrations of the brake discs.
  • This structure-borne noise is radiated over the relatively large outer surfaces of the brake disc as airborne noise, which occurs in practice, for example, as an annoying squeaking noise.
  • Brake discs are out Materials with a relatively high material damping are usually made of cast iron or cast steel, but the material damping is not large enough to completely prevent the noise.
  • a brake disc is known from the generic US Pat. No. 5,855,257, in which the damping is increased by additionally attached friction dampers in the form of friction rings arranged on the circumference of the brake disc. The disadvantage here, however, is that, against the background of high operating temperatures, the friction rings can bake with the brake disc and thus the energy-consuming mechanism of the micro friction between the friction ring and the peripheral surface of the brake disc is prevented.
  • the structure-borne sound vibrations of the component caused by vibration excitation simultaneously lead to vibration excitation of the material in the cavities, the high material damping of which leads to a reduction in the vibration energy present in the system and thus to a reduction in the radiated airborne noise.
  • the one filled in the cavities
  • Damping material is a material whose damping behavior is greater than that of the respective component, as is the case, for example, with sand, in particular quartz sand, concrete, bitumen or viscous liquids.
  • sand in particular quartz sand, concrete, bitumen or viscous liquids.
  • the increased friction present at the grain interfaces provides the damping effect, in the case of viscous liquids the dynamic shear forces acting between the liquid layers. Because the damping material is enclosed in cavities, it is insensitive to external influences, which is particularly advantageous in the presence of an aggressive environment.
  • the component is formed by an annular brake disc, which consists of a cup-shaped hub and a brake ring disc.
  • the at least one cavity filled with the damping material is then formed in the brake ring disk and contains blind holes which extend radially inward from a radially outer peripheral surface of the brake ring disk and which are closed by plugs or covers.
  • the blind holes are preferably produced by drilling, then filled with the material with high material damping and closed at the end by core plugs according to DIN 907 or covers according to DIN 442 or DIN 443.
  • a particularly cost-effective production of the vibration-damped component results if it is a cast component according to claim 6, in particular a cast brake disc made of cast steel or spheroidal graphite cast iron.
  • the cavities can then already be produced during the casting of the Brerns disk by using casting cores which are held on the radially inner or radially outer circumferential surface of the brake disk during the casting process by core supports which protrude through openings which act as core support holes.
  • the casting core itself can consist of the material with high material damping and remain in the brake disc after the casting process. Alternatively, the casting core is removed after the casting process and replaced by the material with high material damping.
  • the openings acting as core support holes in the cavities filled with the damping material are preferably closed by core plugs according to DIN 907 or covers according to DIN 442 or DIN 443.
  • FIG. 1 shows a side view of a brake disc as preferred
  • FIG. 2 shows a cross-sectional view along the line II-II of FIG. 1;
  • FIG. 3 shows a side view of a further embodiment of a
  • the brake disc 1 shows a side view of a brake disc 1 as a preferred application example of the invention.
  • the brake disc 1 is preferably designed as a one-piece component made of cast steel and is used for the disc brake system of a motor vehicle.
  • the axis is provided with a cup-shaped hub 2, as can be seen in particular from FIG.
  • a brake ring disc 4 projects from the cup-shaped hub 2 in the radial direction and its plane is perpendicular to the axis of rotation 6 of the cup-shaped hub 2.
  • the side surfaces of the brake ring disc 1 form friction surfaces pointing away from one another
  • blind holes 12 extend radially inwards, preferably up to the immediate vicinity of the radially inner circumferential surface 14.
  • the blind holes 12 are over the entire surface Distributed circumference of the brake ring disc 4 and arranged at a circumferential distance from each other, only a few of the blind holes 12 being shown in FIG. 1 for reasons of clarity. Based on the thickness of the brake ring disc 4 are the
  • the blind holes 12 are at least partially filled with a material 16 with high material damping, such as sand, in particular quartz sand, bitumen, concrete or a viscous viscous liquid, and are sealed at the end by a stopper 18 or cover.
  • the material damping of the material 16 introduced is higher than that of the brake disc material in order to achieve an increase in the overall material damping.
  • Core plugs according to DIN 907 or lids according to DIN 442 or DIN 443 are preferably used as plugs 18 or lids.
  • the blind holes 12 are produced according to the preferred embodiment shown in FIG. 1 and FIG. 2 by drilling. According to a further embodiment, shown in FIGS.
  • the cavities 12 ′ can be radial
  • Extend direction be arranged at a circumferential distance from each other and based on the thickness of the brake ring disc 1 'in the vicinity of the two friction surfaces 8'. In addition, they are separated from one another in the circumferential direction by inner ribs 22 ′.
  • inner ribs 22 ′ As in the embodiment shown in FIGS. 3 and 4, the
  • the casting core 16 'itself consist of the material with high material damping and remain in the brake disc 1' after the casting process.
  • the casting core 16 ' is removed after the casting process and replaced by the material with high material damping.
  • the openings 20 'functioning as core support holes are finally closed preferably by core plugs 18' according to DIN 907 or covers according to DIN 442 or DIN 443.
  • the application of the invention is not limited to brake disks 1, 1 ', rather it can be used for vibration damping for any vibration-excited components of motor vehicles, such as brake calipers, transmission housings, pump housings, engine blocks and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un élément constitutif d'automobile amorti en oscillations, notamment un disque de frein amorti en oscillations. Il est prévu selon l'invention, à l'intérieur de l'élément constitutif (1) et de manière adjacente à ses surfaces extérieures (8) à rayonnement de son, au moins un espace creux (12) fermé, rempli au moins en partie avec au moins un matériau (16) à haut pouvoir amortisseur de matières, tel que par exemple du sable, du béton, une matière bitumineuse ou un liquide. L'espace creux (12) peut être produit, dans le cas d'éléments constitutifs coulés, tels que par exemple des disques de frein, dès le processus de coulée.
PCT/DE2002/002522 2001-08-25 2002-07-10 Element constitutif d'automobile amorti en oscillations Ceased WO2003019036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10141698.9 2001-08-25
DE2001141698 DE10141698A1 (de) 2001-08-25 2001-08-25 Schwingungsgedämpftes Bauelement eines Kraftfahrzeugs

Publications (1)

Publication Number Publication Date
WO2003019036A1 true WO2003019036A1 (fr) 2003-03-06

Family

ID=7696601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002522 Ceased WO2003019036A1 (fr) 2001-08-25 2002-07-10 Element constitutif d'automobile amorti en oscillations

Country Status (2)

Country Link
DE (1) DE10141698A1 (fr)
WO (1) WO2003019036A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113687A1 (fr) * 2007-03-21 2008-09-25 Zf Friedrichshafen Ag Carter coulé
ITTO20090457A1 (it) * 2009-06-15 2010-12-16 Itt Mfg Enterprises Inc Pastiglia freno perfezionata
WO2013096566A1 (fr) * 2011-12-21 2013-06-27 Brembo North America, Inc. Rotor de frein amorti

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7775332B2 (en) 2005-09-15 2010-08-17 Gm Global Technology Operations, Inc. Bi-metal disc brake rotor and method of manufacturing
US7644750B2 (en) 2005-09-20 2010-01-12 Gm Global Technology Operations, Inc. Method of casting components with inserts for noise reduction
US8245758B2 (en) 2006-10-30 2012-08-21 GM Global Technology Operations LLC Coulomb damped disc brake rotor and method of manufacturing
US7975750B2 (en) 2004-10-08 2011-07-12 GM Global Technology Operations LLC Coulomb friction damped disc brake rotors
US8163399B2 (en) 2004-10-08 2012-04-24 GM Global Technology Operations LLC Damped products and methods of making and using the same
US7594568B2 (en) 2005-11-30 2009-09-29 Gm Global Technology Operations, Inc. Rotor assembly and method
US9174274B2 (en) 2006-05-25 2015-11-03 GM Global Technology Operations LLC Low mass multi-piece sound dampened article
US8056233B2 (en) 2006-06-27 2011-11-15 GM Global Technology Operations LLC Method of manufacturing an automotive component member
US7950441B2 (en) 2007-07-20 2011-05-31 GM Global Technology Operations LLC Method of casting damped part with insert
US8758902B2 (en) 2007-07-20 2014-06-24 GM Global Technology Operations LLC Damped product with an insert having a layer including graphite thereon and methods of making and using the same
US9534651B2 (en) 2007-07-20 2017-01-03 GM Global Technology Operations LLC Method of manufacturing a damped part
US9527132B2 (en) 2007-07-20 2016-12-27 GM Global Technology Operations LLC Damped part with insert
US7823763B2 (en) 2007-08-01 2010-11-02 Gm Global Technology Operations, Inc. Friction welding method and products made using the same
US8118079B2 (en) 2007-08-17 2012-02-21 GM Global Technology Operations LLC Casting noise-damped, vented brake rotors with embedded inserts
US8020300B2 (en) 2007-08-31 2011-09-20 GM Global Technology Operations LLC Cast-in-place torsion joint
US8210232B2 (en) 2007-09-20 2012-07-03 GM Global Technology Operations LLC Lightweight brake rotor and components with composite materials
US7836938B2 (en) 2007-09-24 2010-11-23 Gm Global Technology Operations, Inc. Insert with tabs and damped products and methods of making the same
US8028739B2 (en) 2007-10-29 2011-10-04 GM Global Technology Operations LLC Inserts with holes for damped products and methods of making and using the same
US8091609B2 (en) 2008-01-04 2012-01-10 GM Global Technology Operations LLC Method of forming casting with frictional damping insert
US8104162B2 (en) 2008-04-18 2012-01-31 GM Global Technology Operations LLC Insert with filler to dampen vibrating components
US8960382B2 (en) * 2008-04-18 2015-02-24 GM Global Technology Operations LLC Chamber with filler material to dampen vibrating components
US9163682B2 (en) 2008-07-24 2015-10-20 GM Global Technology Operations LLC Friction damped brake drum
US9500242B2 (en) 2008-12-05 2016-11-22 GM Global Technology Operations LLC Component with inlay for damping vibrations
US8714232B2 (en) 2010-09-20 2014-05-06 GM Global Technology Operations LLC Method of making a brake component

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2265340A (en) * 1940-11-20 1941-12-09 Charles Bond Company Brake drum
US3378115A (en) * 1965-07-14 1968-04-16 Gen Motors Corp Disc damper
US3575270A (en) * 1967-12-09 1971-04-20 Jurid Werke Gmbh Friction means
DE2440675A1 (de) * 1974-08-24 1976-03-04 Bergische Stahlindustrie Verwendung von kugelgraphitguss fuer rotationskoerper
US5855257A (en) 1996-12-09 1999-01-05 Chrysler Corporation Damper for brake noise reduction
FR2783028A1 (fr) * 1998-09-04 2000-03-10 Messier Bugatti Piece de friction en materiau composite thermostructural a bruit attenue

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2265340A (en) * 1940-11-20 1941-12-09 Charles Bond Company Brake drum
US3378115A (en) * 1965-07-14 1968-04-16 Gen Motors Corp Disc damper
US3575270A (en) * 1967-12-09 1971-04-20 Jurid Werke Gmbh Friction means
DE2440675A1 (de) * 1974-08-24 1976-03-04 Bergische Stahlindustrie Verwendung von kugelgraphitguss fuer rotationskoerper
US5855257A (en) 1996-12-09 1999-01-05 Chrysler Corporation Damper for brake noise reduction
FR2783028A1 (fr) * 1998-09-04 2000-03-10 Messier Bugatti Piece de friction en materiau composite thermostructural a bruit attenue

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113687A1 (fr) * 2007-03-21 2008-09-25 Zf Friedrichshafen Ag Carter coulé
ITTO20090457A1 (it) * 2009-06-15 2010-12-16 Itt Mfg Enterprises Inc Pastiglia freno perfezionata
WO2010146047A1 (fr) * 2009-06-15 2010-12-23 Itt Manufacturing Enterprises, Inc. Plaque de frein
CN102483115A (zh) * 2009-06-15 2012-05-30 Itt制造企业公司 制动板
WO2013096566A1 (fr) * 2011-12-21 2013-06-27 Brembo North America, Inc. Rotor de frein amorti
US8857577B2 (en) 2011-12-21 2014-10-14 Brembo North America, Inc. Damped brake rotor

Also Published As

Publication number Publication date
DE10141698A1 (de) 2003-03-06

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