DE19830666A1 - Brake disk for vehicle with friction ring internal profile forming complementary wall of brake disk pot - Google Patents

Brake disk for vehicle with friction ring internal profile forming complementary wall of brake disk pot

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Publication number
DE19830666A1
DE19830666A1 DE1998130666 DE19830666A DE19830666A1 DE 19830666 A1 DE19830666 A1 DE 19830666A1 DE 1998130666 DE1998130666 DE 1998130666 DE 19830666 A DE19830666 A DE 19830666A DE 19830666 A1 DE19830666 A1 DE 19830666A1
Authority
DE
Germany
Prior art keywords
brake disc
friction ring
profile
brake disk
brake
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.)
Granted
Application number
DE1998130666
Other languages
German (de)
Other versions
DE19830666B4 (en
Inventor
Karl-Heinz Roes
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE1998130666 priority Critical patent/DE19830666B4/en
Publication of DE19830666A1 publication Critical patent/DE19830666A1/en
Application granted granted Critical
Publication of DE19830666B4 publication Critical patent/DE19830666B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • F16D65/126—Discs; Drums for disc brakes characterised by the material used for the disc body the material being of low mechanical strength, e.g. carbon, beryllium; Torque transmitting members therefor
    • 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
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • 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
    • F16D2065/1316—Structure radially segmented
    • 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
    • F16D2065/134—Connection
    • F16D2065/1344—Connection permanent, e.g. by casting
    • 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
    • F16D2065/134—Connection
    • F16D2065/1356—Connection interlocking
    • 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
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0039—Ceramics
    • 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
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0052—Carbon
    • 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
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/006—Materials; Production methods therefor containing fibres or particles
    • 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
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0023—Shaping by pressure

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

Abstract

The brake disk has a brake disk pot (1) and a disk-form friction ring (2) co-axial with it on a common central axis (30). The friction ring is built out at its inner circumference with a profile (2a) which forms a complementary wall (1a) of the pot for play-free transmission of torque acting on the friction ring relative to the central axis.

Description

Die vorliegende Erfindung betrifft eine Bremsscheibe, insbeson­ dere für ein Kraftfahrzeug, nach dem Oberbegriff des Patentan­ spruchs 1 sowie ein Verfahren zu ihrer Herstellung.The present invention relates to a brake disc, in particular for a motor vehicle, according to the preamble of the patent Proverb 1 and a process for their preparation.

In der Bremsentechnik haben sich für höchste Beanspruchungen beispielsweise im Kraftfahrzeug-, Flugzeug- oder Bahnbereich Scheibenbremsen (Teil- oder Vollbelagscheibenbremsen) weitge­ hend durchgesetzt. Hierbei wird auf begrenztem Raum kinetische Energie in Reibungswärme umgesetzt. Die Leistungsfähigkeit der Bremse hängt von der Bremsscheibe und dem Bremssattel ab, wel­ che insbesondere bezüglich mechanischer Festigkeit und thermi­ scher Belastung aufeinander abgestimmt sind.In brake technology, they have been designed for the highest demands for example in the automotive, aircraft or rail sector Disc brakes (partial or full-pad disc brakes) widely enforced. Here, kinetic is used in a limited space Energy converted into frictional heat. The performance of the Brake depends on the brake disc and the caliper, wel che especially with regard to mechanical strength and thermal shear load are coordinated.

Eine Bremsscheibe weist einen Bremsscheibentopf und eine an diesem gehalterte Reibscheibe auf. Reibscheiben werden übli­ cherweise mittels Sand- oder Kokillenguß aus Grauguß-Legierun­ gen hergestellt. Bei Bremsscheiben aus Grauguß-Legierungen, welche typischerweise einen Ausdehnungskoeffizienten von 10.10-6 aufweisen, tritt bei Wärmeeinwirkung eine radiale und, bedingt durch die Anbindung an den Bremsscheibentopf, eine axiale Ausdehnung (Schirmung) auf. Es wird beispielsweise ver­ sucht, durch gezielte Anordnung von Wärmedämmnuten die Schir­ mung möglichst gering zu halten.A brake disc has a brake disc pot and a friction disc held thereon. Friction discs are usually made by casting sand or mold from gray cast iron alloys. In the case of brake disks made of gray cast iron alloys, which typically have an expansion coefficient of 10.10 -6 , radial and, due to the connection to the brake disk chamber, axial expansion (shielding) occurs when exposed to heat. For example, attempts are being made to keep the shielding as low as possible by specifically arranging thermal insulation grooves.

Für Einsätze, bei denen herkömmliche Stahl- oder Graugußbrems­ scheiben bei vorgegebenem Bauraum an ihre Leistungsgrenze sto­ ßen werden neuerdings thermisch belastbarere Werkstoffe einge­ setzt. Beispielsweise im Rennsport oder beim Flugzeugbau finden faserverstärkte Kohlen- oder Keramikwerkstoffe als Reibmaterial Verwendung. In der Regel werden derartige Werkstoffe als Plat­ ten, Scheiben oder Ringe hergestellt. Reibringe aus diesen Ma­ terialien werden durch eine Anzahl von Verbindungselementen, beispielsweise Bolzen, Gleitschuhe, Hülsen usw. an einer Adap­ tion bzw. dem Bremsscheibentopf befestigt. Die Adaption hat die Aufgabe, auf die Bremsscheibe wirkende Drehmomente auf den Bremsscheibentopf zu übertragen, die verschiedenen thermischen Ausdehnungen der unterschiedlichen Werkstoffe auszugleichen und den Temperaturbelastungen der verwendeten, neuartigen Reibwerk­ stoffe standzuhalten. Es wird daher oftmals eine schwimmende Lagerung des Reibrings gewählt.For applications where conventional steel or cast iron brakes slices reach their performance limit for a given installation space Materials that can withstand thermal loads are now being used puts. For example, in racing or in aircraft construction fiber-reinforced carbon or ceramic materials as friction material  Use. As a rule, such materials are called plat , discs or rings. Friction rings from these dimensions materials are defined by a number of fasteners, for example bolts, sliding shoes, sleeves etc. on an adapter tion or the brake disc pot attached. The adaptation has that Task, torque acting on the brake disc Brake disc pot to transfer the different thermal Compensate for expansion of the different materials and the temperature loads of the new type of friction mechanism used to withstand fabrics. It therefore often becomes a floating one Storage of the friction ring selected.

Fertigungstoleranzen, insbesondere im Zusammenbau bezüglich Planlauffehlern und Dickenfehlern, wirken sich stark auf den Komfort der Scheibenbremse aus. Bei Graugußbremsscheiben sind die Toleranzen möglichst klein gewählt, was aber unter dem Ge­ sichtspunkt der Massenfertigung mit höheren Kosten verbunden ist. Anbindungen, wie sie beispielsweise im Rennsport üblich sind (schwimmende Lagerung) erfüllen diese Toleranzen nicht.Manufacturing tolerances, especially regarding assembly Axial runout and thickness errors have a strong effect on the Disc brake comfort. When cast iron brake discs are the tolerances chosen as small as possible, but what under the Ge Consideration of mass production associated with higher costs is. Connections such as those common in racing, for example (floating storage) do not meet these tolerances.

Aus der DE-OS 17 75 685 ist eine Bremsscheibe, bestehend aus einem Nabenteil und einem Bremsring bekannt, bei der Bremsring und Scheibennabe Fortsätze und/oder Aussparungen aufweisen, die ineinandergreifen, wobei Bremsring und Nabe durch sich axial erstreckende Verbindungselemente, wie beispielsweise Schrauben, Nieten, Bolzen oder dergleichen gegeneinander verspannt sind. Gemäß dieser Konstruktion wird es als notwendig erachtet, Schrauben bzw. Nieten oder Bolzen zu verwenden, wodurch das Ge­ wicht der Bremsscheibe insgesamt erhöht ist.From DE-OS 17 75 685 is a brake disc consisting of a hub part and a brake ring known in the brake ring and disc hub extensions and / or recesses that interlock, with the brake ring and hub axially extending connecting elements, such as screws, Rivets, bolts or the like are braced against each other. According to this construction, it is considered necessary To use screws or rivets or bolts, whereby the Ge weight of the brake disc is increased overall.

Aus der DE 35 15 512 A1 ist ein Reibring, insbesondere für Scheiben- oder Trommelbremsen bekannt, welcher vollständig aus Keramik hergestellt ist. Um bei einer diesen Reibring verwen­ denden Trommelbremse eine drehfeste Verbindung zwischen Rei­ bring und Bremsgehäuse zu erreichen, ist vorgesehen, das Brems­ gehäuse am Innenumfang mit konkaven Vorsprüngen und den Rei­ bring am Außenumfang mit konvexen Ausnehmungen zu versehen, wo­ bei Vorsprünge und Ausnehmungen ineinandergreifen. Zur axialen Sicherung der beiden Bauteile gegeneinander ist am Außenrand der topfförmigen Nabe ein Flansch vorgesehen, der eine Ringnut aufweist, in die sich der Reibring erstreckt. Das Ausbilden der Nabe mit einem derartigen Flansch sowie das paßgenaue Einbrin­ gen des Reibrings in die Ringnut des Flansches muß als sehr aufwendig angesehen werden.DE 35 15 512 A1 describes a friction ring, in particular for Disc or drum brakes known, which is made entirely of Ceramic is made. To use this with a friction ring end the drum brake a non-rotatable connection between Rei bring and to reach the brake housing is intended to bring the brake housing on the inner circumference with concave projections and the Rei bring on the outer circumference with convex recesses where  interlock with projections and recesses. For axial Securing the two components against each other is on the outer edge the cup-shaped hub is provided with a flange which has an annular groove has, in which the friction ring extends. Forming the Hub with such a flange as well as precise fitting gene of the friction ring in the annular groove of the flange must be very be viewed elaborately.

Aus der US-PS 5,007,508 ist ein Bremsscheibensystem bekannt, bei dem eine Bremsscheibe einen inneren Befestigungsring auf­ weist, auf dessen Innenumfang Ausnehmungen ausgebildet sind. Die Bremsscheibe ist in axial schwimmender Weise auf einem Bremsscheibentopf befestigbar. Zur Gewährleistung dieser Befe­ stigung sind in den Ausnehmungen anordenbare Quadrantstücke und als Verspannungsmittel Schrauben vorgesehen. Diese Anordnung weist eine Vielzahl von Einzelteilen auf, und ist beispielswei­ se durch Vorsehen von Schrauben zur Befestigung der jeweiligen Teile mit einem erhöhten Gewicht behaftet.A brake disc system is known from US Pat. No. 5,007,508. where a brake disc has an inner mounting ring points, on the inner circumference of which recesses are formed. The brake disc is axially floating on one Brake disc pot can be attached. To ensure this befe are quadrant pieces and can be arranged in the recesses screws are provided as tensioning means. This arrangement has a variety of items, and is for example se by providing screws for fastening the respective Parts with increased weight.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung ei­ ner Bremsscheibe, insbesondere für ein Kraftfahrzeug, welche aus möglichst wenigen Teilen einfach und kostengünstig her­ stellbar ist und dabei ein möglichst geringes Gewicht aufweist.The object of the present invention is therefore to create an egg ner brake disc, especially for a motor vehicle, which simple and inexpensive from as few parts as possible is adjustable and has the lowest possible weight.

Diese Aufgabe wird gelöst durch eine Bremsscheibe mit den Merk­ malen des Patentanspruchs 1 sowie ein Verfahren zu seiner Her­ stellung mit den Merkmalen des Patentanspruchs 6.This problem is solved by a brake disc with the Merk paint the claim 1 and a method for its manufacture position with the features of claim 6.

Erfindungsgemäß ist nun eine Bremsscheibe zur Verfügung ge­ stellt, welche gegenüber herkömmlichen Hochleistungs-Brems­ scheiben (Rennsport . . .) wesentlich weniger Bauteile und eine geringeres Gewicht aufweist. Der Montageaufwand zur Befestigung des Reibrings an dem Bremsscheibentopf ist wesentlich geringer als bei herkömmlichen Hochleistungs-Bremsscheiben, da keine Schraubverbindungen vorgesehen sind. Geforderte Toleranzen (beispielsweise bezüglich Planlauf, Dickenfehler, Welligkeit) können durch die erfindungsgemäße feste Verbindung zwischen Reibring und Bremsscheibentopf eingehalten werden. Die erfin­ dungsgemäße Bremsscheibe (ZB Bremsscheibe) ist in einfacher Weise endbearbeitbar, sowie entsprechend einer herkömmlichen Grauguß-Bremsscheibe montierbar und demontierbar.According to the invention, a brake disc is now available which is compared to conventional high-performance brakes discs (racing...) significantly fewer components and one has lower weight. The assembly effort for fastening the friction ring on the brake disc chamber is much lower than with conventional high-performance brake discs, because none Screw connections are provided. Required tolerances (e.g. with respect to axial runout, thickness errors, ripple) can through the inventive fixed connection between  The friction ring and brake disc chamber are observed. The invent Brake disc according to the invention (eg brake disc) is simpler Way finished, as well as according to a conventional Cast iron brake disc mountable and demountable.

Bevorzugte Ausgestaltungen der erfindungsgemäßen Bremsscheibe sind Gegenstand der Unteransprüche.Preferred configurations of the brake disc according to the invention are the subject of the subclaims.

Gemäß einer bevorzugten Ausgestaltung der erfindungsgemäßen Bremsscheibe beaufschlagt das Profil des Reibrings die komple­ mentär geformte Wandung des Bremsscheibentopfes in axialer Richtung formschlüssig. Hierdurch ist in einfacher Weise eine (bezüglich der gemeinsamen Mittelachse) axiale Anbindung des Reibrings an den Bremsscheibentopf erzielbar.According to a preferred embodiment of the invention Brake disc acts on the profile of the friction ring on the complete mentally shaped wall of the brake disc chamber in axial Form-fitting direction. This is a simple (with respect to the common central axis) axial connection of the Friction rings on the brake disc chamber can be achieved.

Zweckmäßigerweise ist der Reibring aus einem nichtmetallischen Werkstoff, insbesondere einem Kohlenstoff- oder Keramikwerk­ stoff hergestellt. Derartige Werkstoffe weisen gegenüber her­ kömmlichen Grauguß-Bremsscheiben einen wesentlich geringeren thermischen Ausdehnungskoeffizienten auf (typischerweise etwa 2.10-6/K, so daß die erfindungsgemäß vorgesehene formschlüssige Verbindung zwischen Reibring und Bremsscheibentopf in besonders einfacher Weise realisierbar ist, da sich nur geringe thermi­ sche Radialdehnungen ergeben. Als Werkstoffe für den Reibring sind ferner kohlefaserverstärkte Kohlenstoffmaterialien (C/C), oder faserverstärkte Verbundkeramiken auf der Basis von Silizi­ umkarbid (C/C-SiC) bevorzugt. Derartige Materialien sind we­ sentlich leichter als beispielsweise herkömmliche Graugußlegie­ rungen.The friction ring is expediently made of a non-metallic material, in particular a carbon or ceramic material. Such materials have compared to conventional gray cast iron brake discs on a significantly lower coefficient of thermal expansion (typically about 2.10 -6 / K, so that the positive connection according to the invention provided between the friction ring and brake disc chamber can be realized in a particularly simple manner, since there are only small thermal radial expansions Carbon fiber-reinforced carbon materials (C / C) or fiber-reinforced composite ceramics based on silicon carbide (C / C-SiC) are also preferred as materials for the friction ring, such materials being considerably lighter than, for example, conventional gray cast iron alloys.

Gemäß einer bevorzugten Ausgestaltung der erfindungsgemäßen Bremsscheibe ist das Profil des Reibrings wellenförmig ausge­ bildet. Ein derartiges Wellenprofil ist in einfacher Weise in den Reibring einbringbar, ohne seine mechanische Festigkeit zu beeinträchtigen. Es sind gleichfalls Profile mit rechteckigen Profilzähnen oder andere, beliebig geformte Profile denkbar. Es wird keine besondere Form- oder Lagetoleranz an die Profilflä­ che, da sich die Kontur der Wandung des Bremsscheibentopfes an das Profil anpaßt. Es erweist sich ferner als günstig, den Reibring bereits als Grünling (im C/C-Zustand) mit dem ge­ wünschten Profil zu versehen.According to a preferred embodiment of the invention Brake disc is the profile of the friction ring wavy forms. Such a wave profile is in a simple manner the friction ring can be inserted without losing its mechanical strength affect. They are also rectangular profiles Profile teeth or other profiles of any shape are conceivable. It there is no special shape or position tolerance on the profile surface  che, since the contour of the wall of the brake disc chamber adapts the profile. It also proves to be cheap Friction ring already as a green body (in the C / C state) with the ge desired profile.

Zweckmäßigerweise ist der Bremsscheibentopf aus einem metalli­ schen Werkstoff hergestellt. Insbesondere herkömmliche Blech­ töpfe sind in preiswerter Weise erhältlich bzw. umformbar. Be­ vorzugt werden insbesondere Nirosta-Stahlbleche, welche ein verhältnismäßig geringes Gewicht bei guter mechanischer Stabi­ lität aufweisen.The brake disc chamber is expediently made of a metal manufactured material. Especially conventional sheet metal Pots are available or can be formed inexpensively. Be In particular, stainless steel sheets, which are a relatively low weight with good mechanical stability lity.

Mittels des erfindungsgemäßen Verfahrens erfolgt eine form­ schlüssige Anpassung der Kontur der Wandung des Bremsscheiben­ topfes an das Profil des Reibrings mittels eines Umformprozes­ ses. Innenhochdruckumformung bzw. IHU-Verfahren werden hierbei als Umformprozesse bevorzugt. Derartige Verfahren sind sehr ko­ stengünstig durchführbar. Hierdurch paßt sich die Wandung des Bremsscheibentopfes an das Profil bzw. die Kontur des Reibrings an. Zur Verhinderung einer Sprengung des Reibrings während die­ ses Vorgangs wird der Reibring zweckmäßigerweise von allen Sei­ ten abgestützt.A shape takes place by means of the method according to the invention conclusive adjustment of the contour of the wall of the brake discs pot to the profile of the friction ring using a forming process ses. Hydroforming or hydroforming processes are used preferred as forming processes. Such procedures are very unlikely very cheap to carry out. This fits the wall of the Brake disc pot to the profile or the contour of the friction ring on. To prevent the friction ring from exploding during the During this process, the friction ring is expediently used by everyone supported.

Zweckmäßigerweise können gegebenenfalls Einschnitte zur elasti­ schen Kompensation thermisch bedingter Verformungen in den Bremsscheibentopf eingebracht werden.Expediently, incisions for elastic compensation of thermally induced deformations in the Brake disc pot are introduced.

Eine bevorzugte Ausführungsform der erfindungsgemäßen Brems­ scheibe wird nun anhand der Zeichnung im einzelnen erläutert.A preferred embodiment of the brake according to the invention disc is now explained in detail with reference to the drawing.

In dieser zeigtIn this shows

Fig. 1 eine Draufsicht auf eine bevorzugte Ausführungsform der erfindungsgemäßen Bremsscheibe, Fig. 1 is a plan view of a preferred embodiment of the brake disk according to the invention,

Fig. 2 einen Querschnitt entlang der Linie 2-2 der Fig. 1, und Fig. 2 shows a cross section along the line 2-2 of Fig. 1, and

Fig. 3 den eingekreisten Bereich der Fig. 2 in vergrößertem Maßstab. Fig. 3 shows the circled area of Fig. 2 on an enlarged scale.

Die in den Fig. 1 und 2 dargestellte, eine hutförmige Gestalt aufweisende Bremsscheibe weist einen Bremsscheibentopf 1 und einen Reibring 2 auf. Der Reibring 2 umgibt den Bremsscheiben­ topf 1 bezüglich einer gemeinsamen Mittelachse 30 koaxial. Der Bodenbereich des Bremsscheibentopfes ist mit einer Verstär­ kungsplatte 10 zur Verbesserung seiner mechanischen Festigkeit ausgebildet. In Fig. 1 ist zu erkennen, daß der Innenumfang des Reibrings 2 mit einem wellenförmigen Profil 2a ausgebildet ist, welches in Umfangsrichtung des Reibrings 2 formschlüssig eine komplementär geformte Wandung 1a des Bremsscheibentopfes 1 be­ aufschlagt. Hierdurch ist der Reibring 2 in Umfangsrichtung be­ züglich des Bremsscheibentopfes 1 gesichert. Ferner können auf den Reibring 2 wirkende Drehmomente im wesentlichen spielfrei auf den Bremsscheibentopf 1 übertragen werden.The brake disc shown in FIGS. 1 and 2, which has a hat-shaped shape, has a brake disc cup 1 and a friction ring 2 . The friction ring 2 surrounds the brake disc cup 1 with respect to a common central axis 30 coaxially. The bottom region of the brake disc chamber is formed with a reinforcing plate 10 to improve its mechanical strength. In Fig. 1 it can be seen that the inner circumference of the friction ring 2 is formed with a wavy profile 2 a, which in the circumferential direction of the friction ring 2 positively opens a complementarily shaped wall 1 a of the brake disc pot 1 be. As a result, the friction ring 2 is secured in the circumferential direction with respect to the brake disk cup 1 . Furthermore, torques acting on the friction ring 2 can be transmitted to the brake disk cup 1 essentially without play.

Insbesondere in Fig. 3 ist erkennbar, daß Profil 2a und Wandung 1a auch in axialer Richtung, d. h. in Richtung der Mittelachse 30, einander formschlüssig beaufschlagen. Hierdurch ist der Reibring 2 auch in axialer Richtung am Bremsscheibentopf 1 ge­ sichert.In particular, in Fig. 3 it is seen that a profile 2 and the wall 1 a in the axial direction, that is, apply in the direction of the central axis 30 to one another form-fitting manner. As a result, the friction ring 2 is also secured in the axial direction on the brake disc chamber 1 .

Claims (7)

1. Bremsscheibe, insbesondere für Kraftfahrzeuge, mit einem Bremsscheibentopf (1), und einen diesen koaxial bezüglich einer gemeinsamen Mittelachse (30) umgebenden scheibenförmigen Rei­ bring (2), dadurch gekennzeichnet, daß der Reibring (2) an seinem Innenumfang mit einem Profil (2a) ausgebildet ist, welches eine komplementär geformte Wan­ dung (1a) des Bremsscheibentopfes (1) zur spielfreien Übertra­ gung eines auf den Reibring (2) bezüglich der Mittelachse (30) wirkenden Drehmoments auf den Bremsscheibentopf (1) formschlüs­ sig beaufschlagt.1. Brake disc, in particular for motor vehicles, with a brake disc chamber ( 1 ), and a disc-shaped row coaxially surrounding this with respect to a common central axis ( 30 ) ( 2 ), characterized in that the friction ring ( 2 ) has a profile on its inner circumference ( 2 a) is formed, which acts on a complementarily shaped wall ( 1 a) of the brake disc chamber ( 1 ) for play-free transmission of a torque on the friction ring ( 2 ) with respect to the central axis ( 30 ) to the brake disc chamber ( 1 ) in a form-fitting manner. 2. Bremsscheibe nach Anspruch 1, dadurch gekennzeichnet, daß das Profil (2a) die komplementär geformte Wandung (1a) in axia­ ler Richtung formschlüssig beaufschlagt.2. Brake disc according to claim 1, characterized in that the profile ( 2 a) positively acts on the complementarily shaped wall ( 1 a) in the axial direction. 3. Bremsscheibe nach einem der Ansprüche 1 oder 2, dadurch ge­ kennzeichnet, daß der Reibring (2) aus einem nichtmetallischen Werkstoff, insbesondere einem Kohlenstoff- oder Keramikwerk­ stoff hergestellt ist.3. Brake disc according to one of claims 1 or 2, characterized in that the friction ring ( 2 ) is made of a non-metallic material, in particular a carbon or ceramic material. 4. Bremsscheibe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Profil (2a) wellenförmig ausgebildet ist.4. Brake disc according to one of the preceding claims, characterized in that the profile ( 2 a) is wave-shaped. 5. Bremsscheibe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Bremsscheibentopf (1) aus einem metal­ lischen Werkstoff hergestellt ist. 5. Brake disc according to one of the preceding claims, characterized in that the brake disc cup ( 1 ) is made of a metallic material. 6. Verfahren zur Herstellung einer Bremsscheibe, mit folgenden Schritten:
  • - Bereitstellung eines Reibrings (2), welcher an seinem Innen­ umfang mit einem Profil (2a) ausgebildet ist,
  • - formschlüssige Anpassung der Kontur einer Wandung (1a) eines Bremsscheibentopfes (1) an das Profil (2a) des Reibrings (2) mittels eines Umformprozesses.
6. A method of manufacturing a brake disc, comprising the following steps:
  • - Providing a friction ring ( 2 ), which is formed on its inner circumference with a profile ( 2 a),
  • - Form-fitting adaptation of the contour of a wall ( 1 a) of a brake disc chamber ( 1 ) to the profile ( 2 a) of the friction ring ( 2 ) by means of a forming process.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß in den Bremsscheibentopf (1) Einschnitte zur elastischen Kompensa­ tion thermisch bedingter Verformungen eingebracht werden.7. The method according to claim 6, characterized in that in the brake disc chamber ( 1 ) incisions for elastic compensation tion thermally induced deformations are introduced.
DE1998130666 1998-07-09 1998-07-09 Brake disc, in particular for a motor vehicle Expired - Fee Related DE19830666B4 (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2810382A1 (en) * 2000-06-16 2001-12-21 Peugeot Citroen Automobiles Sa Method of assembly of a brake mechanism, either disc or drum, with the hub of a wheel of a motor vehicle by a swaging operation
WO2003069179A1 (en) * 2002-02-18 2003-08-21 Thyssenkrupp Stahl Ag Brake disc comprising a connection between the hub well and friction ring, produced by internal hydroforming
DE10206567A1 (en) * 2002-02-18 2003-09-11 Thyssenkrupp Stahl Ag Vehicle brake disk has disk body with pyramid-shaped lugs on internal edge
DE10250231A1 (en) * 2002-03-19 2003-10-02 Continental Teves Ag & Co Ohg Multi-section brake disc has contact face on friction ring carrier or contact face on friction ring provided with convex curvature so that friction ring can effect at least limited pivoting perpendicularly to axial direction
EP1128084A3 (en) * 2000-02-23 2003-10-29 Bayerische Motoren Werke Aktiengesellschaft Method for manufacturing a brake disc
DE10322454A1 (en) * 2002-06-12 2004-02-26 Continental Teves Ag & Co. Ohg Brake disc has friction ring which at least in region of corresponding holes for engagement of protrusions on holding section is formed from brittle material, and sleeve-form intermediate elements are fitted in holes in friction ring
DE10306482B4 (en) * 2002-02-18 2006-04-27 Thyssenkrupp Steel Ag Method for the positive connection of a cup-shaped molded body with an annular, slipped over the shaped body outer body, in particular a brake disc body
DE102005037676A1 (en) * 2005-08-06 2007-03-22 Mayer, Ralph, Dipl.-Ing. Composite brake disc for cars consisting of friction ring, brake disc holder and possible intermediate ring joined by compression connections whose surfaces are covered by embedded particles forming coating
WO2007049312A1 (en) * 2005-10-28 2007-05-03 Brembo Ceramic Brake Systems S.P.A. Parking brake
DE102005022083B4 (en) * 2004-05-14 2008-08-28 Aktiebolaget Skf Device for connecting a rolling bearing with an outer body
DE102008019263A1 (en) * 2008-04-17 2009-10-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disk/hub connection for connecting brake disk with hub of vehicle wheel, has hub comprising hollow cylindrical section and circumferentially waved contour that is intervened with circumferentially waved contour of brake disk
DE102009012216A1 (en) 2009-03-07 2010-09-09 Daimler Ag brake disc
DE102009013964A1 (en) * 2009-03-19 2010-09-23 Daimler Ag Composite brake disk, for use in motor vehicle, has friction ring and brake disk pot connected with one another by axial and radial securing elements, where radial securing element is designed as spline shaft connecting unit
DE102010035646B3 (en) * 2010-08-27 2011-12-15 Daimler Ag Method for manufacturing brake disk for disk brake of motor vehicle i.e. passenger car, involves forming two regions of brake disk with different material compositions such that regions have different coefficient of thermal expansions
WO2015058314A2 (en) 2013-10-23 2015-04-30 Ernst Grob Ag Composite brake disc and method and device for producing same
WO2017186867A1 (en) * 2016-04-27 2017-11-02 Fritz Winter Eisengiesserei Gmbh & Co. Kg Brake disc for a vehicle
JP2020515773A (en) * 2016-12-22 2020-05-28 リサーチ インスティチュート オブ インダストリアル サイエンス アンド テクノロジー Brake disc and manufacturing method thereof

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DE102010012504A1 (en) * 2010-03-24 2011-09-29 Daimler Ag Brake disk for disk brake of motor vehicle, particularly passenger car, comprises friction ring, which is made of alloy, particularly from gray cast iron, and brake disk chamber that is made of thin walled sheet metal
DE102010022170A1 (en) 2010-05-20 2011-11-24 Daimler Ag Method for manufacturing brake disk for disk brake of motor vehicle, involves connecting brake disk head with friction ring in form-fit manner, where brake disk head is made of metal plate

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128084A3 (en) * 2000-02-23 2003-10-29 Bayerische Motoren Werke Aktiengesellschaft Method for manufacturing a brake disc
FR2810382A1 (en) * 2000-06-16 2001-12-21 Peugeot Citroen Automobiles Sa Method of assembly of a brake mechanism, either disc or drum, with the hub of a wheel of a motor vehicle by a swaging operation
WO2003069179A1 (en) * 2002-02-18 2003-08-21 Thyssenkrupp Stahl Ag Brake disc comprising a connection between the hub well and friction ring, produced by internal hydroforming
DE10206567A1 (en) * 2002-02-18 2003-09-11 Thyssenkrupp Stahl Ag Vehicle brake disk has disk body with pyramid-shaped lugs on internal edge
DE10261956A1 (en) * 2002-02-18 2004-02-12 Thyssen Krupp Stahl Gmbh Method for reshaping a cup-shaped molded body in the region of its wall, in particular for producing a brake disc
DE10306482B4 (en) * 2002-02-18 2006-04-27 Thyssenkrupp Steel Ag Method for the positive connection of a cup-shaped molded body with an annular, slipped over the shaped body outer body, in particular a brake disc body
DE10250231A1 (en) * 2002-03-19 2003-10-02 Continental Teves Ag & Co Ohg Multi-section brake disc has contact face on friction ring carrier or contact face on friction ring provided with convex curvature so that friction ring can effect at least limited pivoting perpendicularly to axial direction
DE10322454A1 (en) * 2002-06-12 2004-02-26 Continental Teves Ag & Co. Ohg Brake disc has friction ring which at least in region of corresponding holes for engagement of protrusions on holding section is formed from brittle material, and sleeve-form intermediate elements are fitted in holes in friction ring
DE102005022083B4 (en) * 2004-05-14 2008-08-28 Aktiebolaget Skf Device for connecting a rolling bearing with an outer body
US7771123B2 (en) 2004-05-14 2010-08-10 Aktiebolaget Skf Connection device for connecting a rolling contact bearing to an external body
DE102005037676A1 (en) * 2005-08-06 2007-03-22 Mayer, Ralph, Dipl.-Ing. Composite brake disc for cars consisting of friction ring, brake disc holder and possible intermediate ring joined by compression connections whose surfaces are covered by embedded particles forming coating
WO2007049312A1 (en) * 2005-10-28 2007-05-03 Brembo Ceramic Brake Systems S.P.A. Parking brake
DE102008019263B4 (en) * 2008-04-17 2010-01-28 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disc / hub connection
DE102008019263A1 (en) * 2008-04-17 2009-10-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disk/hub connection for connecting brake disk with hub of vehicle wheel, has hub comprising hollow cylindrical section and circumferentially waved contour that is intervened with circumferentially waved contour of brake disk
DE102009012216A1 (en) 2009-03-07 2010-09-09 Daimler Ag brake disc
WO2010102704A1 (en) 2009-03-07 2010-09-16 Daimler Ag Brake disk
DE102009013964A1 (en) * 2009-03-19 2010-09-23 Daimler Ag Composite brake disk, for use in motor vehicle, has friction ring and brake disk pot connected with one another by axial and radial securing elements, where radial securing element is designed as spline shaft connecting unit
DE102009013964B4 (en) * 2009-03-19 2014-09-18 Daimler Ag brake disc
DE102010035646B3 (en) * 2010-08-27 2011-12-15 Daimler Ag Method for manufacturing brake disk for disk brake of motor vehicle i.e. passenger car, involves forming two regions of brake disk with different material compositions such that regions have different coefficient of thermal expansions
WO2015058314A2 (en) 2013-10-23 2015-04-30 Ernst Grob Ag Composite brake disc and method and device for producing same
US10072718B2 (en) 2013-10-23 2018-09-11 Ernst Grob Ag Composite brake disc and method and apparatus for manufacture of the same
WO2017186867A1 (en) * 2016-04-27 2017-11-02 Fritz Winter Eisengiesserei Gmbh & Co. Kg Brake disc for a vehicle
DE102016107823A1 (en) * 2016-04-27 2017-11-02 Fritz Winter Eisengiesserei Gmbh & Co. Kg Brake disc for a vehicle
JP2020515773A (en) * 2016-12-22 2020-05-28 リサーチ インスティチュート オブ インダストリアル サイエンス アンド テクノロジー Brake disc and manufacturing method thereof
US11248671B2 (en) 2016-12-22 2022-02-15 Research Institute Of Industrial Science & Technology Brake disc and manufacturing method therefor

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