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WO2002029273A1 - Fixed-caliper disc brake - Google Patents

Fixed-caliper disc brake Download PDF

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Publication number
WO2002029273A1
WO2002029273A1 PCT/EP2001/009780 EP0109780W WO0229273A1 WO 2002029273 A1 WO2002029273 A1 WO 2002029273A1 EP 0109780 W EP0109780 W EP 0109780W WO 0229273 A1 WO0229273 A1 WO 0229273A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
wheel
disc
fixed caliper
brake disc
Prior art date
Application number
PCT/EP2001/009780
Other languages
German (de)
French (fr)
Inventor
Olaf Jörg DREWES
Johann Dantele
Original Assignee
Otto Sauer Achsenfabrik Keilberg
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 Otto Sauer Achsenfabrik Keilberg filed Critical Otto Sauer Achsenfabrik Keilberg
Priority to AU2001284032A priority Critical patent/AU2001284032A1/en
Publication of WO2002029273A1 publication Critical patent/WO2002029273A1/en

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
    • F16D65/02—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
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • 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
    • 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
    • F16D2065/1364—Connection interlocking with relative movement axially
    • 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
    • F16D2065/1384—Connection to wheel hub
    • 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
    • F16D2065/1392—Connection elements
    • 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
    • F16D65/78—Features relating to cooling
    • F16D2065/785—Heat insulation or reflection
    • 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

Definitions

  • the invention relates to a disc brake for vehicles, in particular commercial vehicles, the wheels of which are each fastened to a wheel hub by means of wheel bolts, with an axially displaceably mounted brake disc which is provided in the region of the wheel hub and which, for example, between brake shoes.
  • B. can be clamped pneumatically or hydraulically.
  • the brake disc In the case of pneumatic fixed caliper disc brakes, the brake disc must be axially displaceably mounted due to the increasing lining and disc wear, in contrast to floating caliper disc brakes with a fixed brake disc, in which the brake caliper is displaceable. Hydraulically actuated fixed caliper disc brakes from the passenger car and motorcycle area are hydraulically applied on both sides and, in contrast to pneumatic parking brakes, do not require an axially displaceable disc. Pneumatic parking brakes are already known, in which the brake disc is slidably mounted directly on the hub body via a relatively expensive toothing. In the case of fixed caliper disc brakes for commercial vehicles, such storage is not readily possible because the toothing is arranged directly above the wheel bearings.
  • the object of the present invention is to develop a fixed caliper disc brake of the type mentioned at the outset in such a way that reliable axial displacement of the brake disc relative to the wheel hub is possible without the problems of the thermal load of lubricants and wheel bearing seals known from the prior art occurring.
  • the extensions are part of the wheel bolts themselves, additional bolts can be saved.
  • the relatively expensive toothing between the brake disc and the wheel hub is avoided when using bolt extensions.
  • Thermal stress on the wheel bearings is avoided in that the brake disc can surround the wheel hub at a sufficient distance and is not directly seated on the wheel hub.
  • the bolt extension is received in a bore of the brake disc with little play. In this way, a radial expansion of the brake disc is possible due to the higher braking temperatures without a shielding effect.
  • the invention further proposes that the at least one bore is provided for receiving the at least one bolt extension in a component which is separate from the rest of the brake disc material and is designed as a guide ring. This has the advantage that those material qualities can be used for the brake disc material and the guide ring material that are particularly suitable and desirable for the intended functions. While the brake disc material in cooperation with the brake shoes should achieve a particularly good braking effect, the material for the guide ring should be particularly suitable for permanent axial guidance of the brake disc on the bolt extensions.
  • the guide ring made of a good heat insulating material, e.g. B. ceramic, to inhibit heat conduction from the brake disc to the wheel bearings.
  • a rotation lock between the guide ring and the rest of the brake disc material can be provided, in particular, by means of a toothing or the like which is simple to manufacture by casting.
  • wheel bolts are provided with a wheel bolt extension which are distributed uniformly over the circumference of the wheel hub in order to ensure a correct axial displacement of the brake disc.
  • the bolt extensions preferably have a high-strength screw quality.
  • FIG. 1 schematically, in section, a fixed caliper disc brake according to the invention in a partial area of the wheel circumference
  • Figure 2A is a partially sectioned brake disc of the type according to the invention in side view
  • FIG. 2B shows an end view of the brake disk according to FIG. 2A, partially cut along the section line A - A from FIG. 2A.
  • the fixed caliper disc brake 1 according to FIG. 1 is intended in particular for commercial vehicles whose wheels 2 are fastened to a wheel hub 4 by means of wheel bolts 3 and wheel nuts 12.
  • the z. B. pneumatic or hydraulic delivery device is not shown.
  • the feed device is such that the brake disc 5 is clamped between the brake shoes 6 when the brake is actuated in order to achieve a more or less great braking effect.
  • the brake disc 5 has a central circular recess 14 into which the inner end of the wheel hub 4 with the wheel bearing 15 can protrude at a sufficient distance so that there is no excessive thermal stress on the wheel it occurs even if the brake disc 5 assumes higher temperatures when braking. In this way, in particular the lubricants and wheel bearing seals present in the wheel bearing 15 are protected.
  • the brake disc 5 initially has a guide ring 10 as a separate component, in which the bores 8, which, like the wheel bolts 3, are uniform over the circumference of the wheel hub 4 are distributed.
  • the outer brake disc material 9 is poured onto the guide ring 10.
  • the guide ring 10 engages with the toothing 11 in the brake disc material 9, which is easily possible with the proposed method of manufacture.

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

Abstract

The invention relates to a fixed-caliper disc brake (1) for vehicles whose wheels (2) are fixed to a wheel hub by means of wheel nuts (4). The area around the wheel hub receives an axially displaceable brake disc (5) which can be tensioned between brake shoes (6). The inventive brake is further characterized in that the brake disc, on at least one extension of the nut facing inwards, especially a nut extension (7) of the wheel nut itself, is mounted in such a manner as to be axially adjustable relative the wheel hub. The inventive brake provides a simple, inexpensive and reliable means for compensating for lining and brake disc wear.

Description

Festsattelscheibenbremse Fixed caliper disc brake
Beschreibung:Description:
Die Erfindung bezieht sich auf eine Scheibenbremse für Fahrzeuge, insbesondere Nutzfahrzeuge, deren Räder jeweils mittels Radbolzen an einer Radnabe befestigt sind, mit einer im Bereich der Radnabe vorgesehenen axial verschieblich gelagerten Bremsscheibe, welche zwischen Bremsbacken z. B. pneumatisch oder hydraulisch einspannbar ist.The invention relates to a disc brake for vehicles, in particular commercial vehicles, the wheels of which are each fastened to a wheel hub by means of wheel bolts, with an axially displaceably mounted brake disc which is provided in the region of the wheel hub and which, for example, between brake shoes. B. can be clamped pneumatically or hydraulically.
Bei pneumatischen Festsattelscheibenbremsen muss die Bremsscheibe wegen des zunehmenden Belag- und Scheibenverschleißes axial verschieblich gelagert sein, im Gegensatz zu Schwimmsattelscheibenbremsen mit feststehender Bremsscheibe, bei welchen der Bremssattel verschieblich ist. Hydraulisch betä- tigte Festsattelscheibenbremsen aus dem Personenkraftwagen- und Kraftradbereich werden beidseitig hydraulisch zugespannt und benötigen im Gegensatz zu pneumatischen Feststellbremsen keine axial verschiebbare Scheibe. Es sind bereits pneumatische Feststellbremsen bekannt, bei welchen die Bremsscheibe über eine verhältnismäßig teure Verzahnung unmittelbar auf dem Nabenkörper verschieblich gelagert ist. Bei Festsattelscheibenbremsen für Nutzfahrzeuge ist eine solche Lagerung nicht ohne weiteres möglich, weil die Verzahnungen unmittelbar über den Radlagern angeordnet sind. Dies hat zur Folge, dass insbesondere die Schmiermittel und die bremsseitigen Radlagerdichtungen thermisch zu hoch belastet werden. Derartige direkte Verzahnungen der Bremsscheibe mit dem Nabenkörper erfordern deshalb zusätzlich aufwendige Lüftungskanäle, so wie sie z. B. in der EP 0 621 829 B1 vorgeschlagen sind.In the case of pneumatic fixed caliper disc brakes, the brake disc must be axially displaceably mounted due to the increasing lining and disc wear, in contrast to floating caliper disc brakes with a fixed brake disc, in which the brake caliper is displaceable. Hydraulically actuated fixed caliper disc brakes from the passenger car and motorcycle area are hydraulically applied on both sides and, in contrast to pneumatic parking brakes, do not require an axially displaceable disc. Pneumatic parking brakes are already known, in which the brake disc is slidably mounted directly on the hub body via a relatively expensive toothing. In the case of fixed caliper disc brakes for commercial vehicles, such storage is not readily possible because the toothing is arranged directly above the wheel bearings. The consequence of this is that the lubricants and the wheel bearing seals on the brake in particular are subjected to excessive thermal stress. Such direct toothing of the brake disc the hub body therefore require additional ventilation ducts, such as z. B. are proposed in EP 0 621 829 B1.
Aus dem DE 297 15 478 U ist es an sich bekannt, die Bremsscheibe mit Hilfe der Radbolzen an der Radnabe fest anzuflanschen.From DE 297 15 478 U it is known per se to firmly flange the brake disc to the wheel hub with the aid of the wheel bolts.
Aufgabe der vorliegenden Erfindung ist es, eine Festsattelscheibenbremse der eingangs genannten Art dahingehend weiterzubilden, dass eine zuverlässige axiale Verschiebbarkeit der Bremsscheibe relativ zu der Radnabe möglich ist, ohne dass die aus dem Stand der Technik bekannten Probleme der thermischen Belastung von Schmiermittel und Radlagerdichtungen auftreten.The object of the present invention is to develop a fixed caliper disc brake of the type mentioned at the outset in such a way that reliable axial displacement of the brake disc relative to the wheel hub is possible without the problems of the thermal load of lubricants and wheel bearing seals known from the prior art occurring.
Diese Aufgabe wird erfindungsgemäß bei einer Festsattelscheibenbremse der eingangs genannten Art z. B. dadurch gelöst, dass die Bremsscheibe auf min- destens einer nach innen weisenden Bolzenverlängerung, insbesondere der Radbolzenverlängerung selbst, im Betrieb axial relativ zu der Radnabe verschieblich geführt ist. Auf diese Weise kann der Bremsbelag- und Bremsscheibenverschleiß einfach, kostengünstig und zuverlässig ausgeglichen werden.This object is achieved according to the invention in a fixed caliper disc brake of the type mentioned at the outset. B. solved by the fact that the brake disc on at least one inward-pointing bolt extension, in particular the wheel bolt extension itself, is axially displaceable in operation relative to the wheel hub. In this way, brake pad and brake disc wear can be compensated for simply, inexpensively and reliably.
Wenn die Verlängerungen Teil der Radbolzen selbst sind, können zusätzliche Bolzen eingespart werden. Insbesondere ist aber bei Ausnutzung von Bolzenverlängerungen die verhältnismäßig teure Verzahnung zwischen Bremsscheibe und Radnabe vermieden. Eine thermische Beanspruchung der Radlager ist dadurch vermieden, dass die Bremsscheibe die Radnabe in hinreichendem Ab- stand umgeben kann und nicht unmittelbar auf der Radnabe sitzt.If the extensions are part of the wheel bolts themselves, additional bolts can be saved. In particular, however, the relatively expensive toothing between the brake disc and the wheel hub is avoided when using bolt extensions. Thermal stress on the wheel bearings is avoided in that the brake disc can surround the wheel hub at a sufficient distance and is not directly seated on the wheel hub.
In Weiterbildung des Erfindungsgedankens ist die Bolzenverlängerung mit geringem Spiel in einer Bohrung der Bremsscheibe aufgenommen. Auf diese Weise ist eine radiale Ausdehnung der Bremsscheibe bedingt durch die höheren Bremstemperaturen ohne Aufschirmeffekt möglich. Mit der Erfindung wird ferner vorgeschlagen, dass die wenigstens eine Bohrung für die Aufnahme der wenigstens einen Bolzenverlängerung in einem von dem übrigen Bremsscheibenmaterial gesonderten, als Führungsring ausgebildeten Bauteil vorgesehen ist. Dies hat den Vorteil, dass für das Bremsscheibenmateri- al und das Führungsringmaterial jeweils diejenigen Materialqualitäten verwendet werden können, welche für die angestrebten Funktionen besonders geeignet und erstrebenswert sind. Während das Bremsscheibenmaterial in Zusammenarbeit mit den Bremsbacken eine besonders gute Bremswirkung erzielen soll, soll das Material für den Führungsring besonders geeignet für eine dauerhafte axia- le Führung der Bremsscheibe auf den Bolzenverlängerungen sein.In a further development of the inventive concept, the bolt extension is received in a bore of the brake disc with little play. In this way, a radial expansion of the brake disc is possible due to the higher braking temperatures without a shielding effect. The invention further proposes that the at least one bore is provided for receiving the at least one bolt extension in a component which is separate from the rest of the brake disc material and is designed as a guide ring. This has the advantage that those material qualities can be used for the brake disc material and the guide ring material that are particularly suitable and desirable for the intended functions. While the brake disc material in cooperation with the brake shoes should achieve a particularly good braking effect, the material for the guide ring should be particularly suitable for permanent axial guidance of the brake disc on the bolt extensions.
Außerdem ist bevorzugt, dass der Führungsring aus einem gut wärmeisolierenden Material, z. B. Keramik, besteht, um auch auf diese Weise eine Wärmeleitung von der Bremsscheibe zu den Radlagern zu hemmen.It is also preferred that the guide ring made of a good heat insulating material, e.g. B. ceramic, to inhibit heat conduction from the brake disc to the wheel bearings.
Herstellungstechnisch einfach kann z. B. der Führungsring von dem übrigen Bremsscheibenmaterial umgössen sein.Technically simple z. B. the guide ring from the remaining brake disc material.
Eine Drehsicherung zwischen Führungsring und dem übrigen Bremsscheiben- material kann insbesondere dabei mittels einer gusstechnisch einfach herstellbaren Verzahnung oder dgl. Unrundheit vorgesehen sein.A rotation lock between the guide ring and the rest of the brake disc material can be provided, in particular, by means of a toothing or the like which is simple to manufacture by casting.
In weiterer Ausgestaltung des Erfindungsgedankens sind mehrere, vorzugsweise alle Radbolzen mit einer Radbolzenverlängerung versehen, welche gleich- mäßig über den Umfang der Radnabe verteilt sind, um eine einwandfreie axiale Verschiebung der Bremsscheibe zu sichern.In a further embodiment of the inventive concept, several, preferably all, wheel bolts are provided with a wheel bolt extension which are distributed uniformly over the circumference of the wheel hub in order to ensure a correct axial displacement of the brake disc.
Die Bolzenverlängerungen haben in Anbetracht der thermischen Belastung vorzugsweise eine hochfeste Schraubenqualität. Weitere Ziele, Merkmale, Vorteile und Anwendungsmöglichkeiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, auch unabhängig von Ihrer Zusammenfassung in einzelnen Ansprüchen oder deren Rückbeziehung.In view of the thermal load, the bolt extensions preferably have a high-strength screw quality. Further objectives, features, advantages and possible uses of the invention result from the following description of exemplary embodiments with reference to the drawing. All of the described and / or illustrated features, alone or in any combination, form the subject matter of the invention, regardless of their summary in individual claims or their relationship.
Es zeigen:Show it:
Figur 1 schematisch im Schnitt eine die Erfindung aufweisende Festsattelscheibenbremse in einem Teilbereich des Radumfanges,FIG. 1 schematically, in section, a fixed caliper disc brake according to the invention in a partial area of the wheel circumference,
Figur 2A eine teilweise geschnittene Bremsscheibe der erfindungsgemäßen Art in Seitenansicht undFigure 2A is a partially sectioned brake disc of the type according to the invention in side view and
Figur 2B eine stirnseitige Ansicht der Bremsscheibe gemäß Figur 2A, teilweise entsprechend der Schnittlinie A - A von Figur 2A geschnitten.FIG. 2B shows an end view of the brake disk according to FIG. 2A, partially cut along the section line A - A from FIG. 2A.
Die Festsattelscheibenbremse 1 gemäß Figur 1 ist insbesondere für Nutzfahr- zeuge bestimmt, deren Räder 2 mittels Radbolzen 3 und Radmuttern 12 an einer Radnabe 4 befestigt sind.The fixed caliper disc brake 1 according to FIG. 1 is intended in particular for commercial vehicles whose wheels 2 are fastened to a wheel hub 4 by means of wheel bolts 3 and wheel nuts 12.
In Figur 1 ist jedoch erkennbar, dass erfindungsgemäß keine üblichen Radbolzen 3 verwendet sind, sondern solche, welche jenseits eines Wulstes 13, mit Hilfe dessen und mit Hilfe der Radmutter 12 das Rad 2 an der Radnabe 4 festgespannt ist, eine zylindrische Bolzenverlängerung 7 aufweisen, welche in Bohrungen 8 der Bremsscheibe 5 hineinragen. Die Bolzenverlängerungen 7 haben in den Bohrungen 8 ein geringes Spiel, welches einerseits eine gewisse thermische Dehnung der Bremsscheibe 5 relativ zu der Radnabe 4 unter der Brems- temperatur zulässt, andererseits aber auch eine zuverlässige axiale Führung der Bremsscheibe 5 gewährleistet, welche erforderlich ist, da das Bremsscheibenmaterial 9 während des Fahrzeugbetriebes mehr und mehr abnutzt.In FIG. 1, however, it can be seen that, according to the invention, no conventional wheel bolts 3 are used, but rather those which have a cylindrical bolt extension 7 beyond a bead 13, with the aid of which and with the aid of the wheel nut 12, the wheel 2 is clamped to the wheel hub 4, which protrude into bores 8 of the brake disc 5. The bolt extensions 7 have a slight play in the bores 8, which on the one hand allows a certain thermal expansion of the brake disc 5 relative to the wheel hub 4 below the braking temperature, but on the other hand also provides reliable axial guidance ensures the brake disc 5, which is necessary because the brake disc material 9 wears out more and more during vehicle operation.
Auf das äußere Bremsscheibenmaterial 9 wirken Bremsböcke 6, deren z. B. pneumatische oder hydraulische ZuStelleinrichtung nicht näher dargestellt ist. Die ZuStelleinrichtung ist so beschaffen, dass die Bremsscheibe 5 bei Betätigung der Bremse zwischen den Bremsbacken 6 eingespannt ist, um eine mehr oder weniger große Bremswirkung zu erzielen.On the outer brake disc material 9 brake blocks 6, the z. B. pneumatic or hydraulic delivery device is not shown. The feed device is such that the brake disc 5 is clamped between the brake shoes 6 when the brake is actuated in order to achieve a more or less great braking effect.
Wie aus den Figuren 1 , 2A und 2B hervorgeht, hat die Bremsscheibe 5 eine mittlere kreisrunde Aussparung 14, in welche das innere Ende der Radnabe 4 mit dem Radlager 15 mit hinreichendem Abstand hineinragen kann, so dass keine übermäßige thermische Belastung des Rad lag erb ereich es auftritt, auch wenn die Bremsscheibe 5 beim Bremsen höhere Temperaturen annimmt. Auf diese Weise werden insbesondere die in dem Radlager 15 vorhandenen Schmiermittel und Radlagerdichtungen geschont.As can be seen from FIGS. 1, 2A and 2B, the brake disc 5 has a central circular recess 14 into which the inner end of the wheel hub 4 with the wheel bearing 15 can protrude at a sufficient distance so that there is no excessive thermal stress on the wheel it occurs even if the brake disc 5 assumes higher temperatures when braking. In this way, in particular the lubricants and wheel bearing seals present in the wheel bearing 15 are protected.
Insbesondere aus der Figur 2A und 2B ist erkennbar, dass angrenzend an die mittlere Aussparung 14 die Bremsscheibe 5 zunächst als gesondertes Bauteil einen Führungsring 10 aufweist, in welchem sich die Bohrungen 8, welche gleichmäßig, wie die Radbolzen 3, über den Umfang der Radnabe 4 verteilt sind, befinden. Auf den Führungsring 10 ist das äußere Bremsscheibenmaterial 9 aufgegossen. Um beide Bauteile drehfest miteinander zu verbinden, greift der Führungsring 10 mit einer Verzahnung 11 in das Bremsscheibenmaterial 9 ein, was bei der vorgeschlagenen Herstellungsweise problemlos möglich ist. Bezugszeichenliste:It can be seen in particular from FIGS. 2A and 2B that, adjacent to the central recess 14, the brake disc 5 initially has a guide ring 10 as a separate component, in which the bores 8, which, like the wheel bolts 3, are uniform over the circumference of the wheel hub 4 are distributed. The outer brake disc material 9 is poured onto the guide ring 10. In order to connect the two components in a rotationally fixed manner, the guide ring 10 engages with the toothing 11 in the brake disc material 9, which is easily possible with the proposed method of manufacture. LIST OF REFERENCE NUMBERS
1 Festsattelscheibenbremse1 fixed caliper disc brake
2 Rad2 wheel
3 Radbolzen3 wheel bolts
4 Radnabe4 wheel hub
5 Bremsscheibe5 brake disc
6 Bremsbacken6 brake shoes
7 Radbolzenverlängerung7 Wheel bolt extension
8 Bohrung8 hole
9 Bremsscheibenmaterial9 brake disc material
10 Führungsring10 guide ring
11 Verzahnung11 gearing
12 Radmuttern12 wheel nuts
13 Ringwulst13 ring bead
14 Aussparung14 recess
15 Radlager 15 wheel bearings

Claims

Patentansprüche: claims:
1. Festsattelscheibenbremse für Fahrzeuge, insbesondere Nutzfahrzeuge, deren Räder (2) jeweils mittels Radbolzen (3) an einer Radnabe (4) befestigt sind, mit einer im Bereich der Radnabe (4) vorgesehenen axial verschieblich gelagerten Bremsscheibe (5), welche zwischen Bremsbacken (6) z. B. pneumatisch oder hydraulisch einspannbar ist, dadurch gekennzeichnet, dass die Bremsscheibe (5) auf mindestens einer nach innen weisenden Bolzenverlängerung (7), insbesondere einer Radbolzenverlängerung, axial relativ zu der Radnabe (4) verstellbar geführt ist.1. Fixed caliper disc brake for vehicles, in particular commercial vehicles, the wheels (2) of which are each fastened to a wheel hub (4) by means of wheel bolts (3), with an axially displaceably mounted brake disc (5) provided in the region of the wheel hub (4), which is located between brake shoes (6) e.g. B. can be clamped pneumatically or hydraulically, characterized in that the brake disc (5) on at least one inwardly facing bolt extension (7), in particular a wheel bolt extension, is axially adjustable relative to the wheel hub (4).
2. Festsattelscheibenbremse nach Anspruch 1, dadurch gekennzeichnet, dass die Bolzenverlängerung (7) mit geringem Spiel in einer Bohrung (8) der2. Fixed caliper disc brake according to claim 1, characterized in that the bolt extension (7) with little play in a bore (8)
Bremsscheibe (5) aufgenommen ist.Brake disc (5) is added.
3. Festsattelscheibenbremse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die wenigstens eine Bohrung (8) für die Aufnahme der wenigs- tens einen Bolzenverlängerung (7) in einem von dem übrigen Bremsscheibenmaterial (7) gesonderten, als Führungsring (10) ausgebildeten Bauteil vorgesehen ist.3. Fixed caliper disc brake according to claim 1 or 2, characterized in that the at least one bore (8) for receiving the at least one bolt extension (7) in a separate from the remaining brake disc material (7), designed as a guide ring (10) is provided.
4. Festsattelscheibenbremse nach Anspruch 3, dadurch gekennzeichnet, dass der Führungsring (10) von dem übrigen Bremsscheibenmaterial (9) umgössen ist.4. Fixed caliper disc brake according to claim 3, characterized in that the guide ring (10) from the rest of the brake disc material (9) is overmolded.
5. Festsattelscheibenbremse nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass zwischen Führungsring (10) und dem übrigen Bremsscheiben- material (9) eine Verzahnung (11) vorgesehen ist. 5. Fixed caliper disc brake according to claim 3 or 4, characterized in that a toothing (11) is provided between the guide ring (10) and the remaining brake disc material (9).
6. Festsattelscheibenbremse nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass der Führungsring (10) aus einem gut wärmeisolierenden Material, z. B. Keramik, besteht.6. Fixed caliper disc brake according to one of claims 3 to 5, characterized in that the guide ring (10) made of a good heat insulating material, for. B. ceramic.
7. Festsattelscheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mehrere, vorzugsweise alle Radbolzen (3) eine Radbolzenverlängerung (7) aufweisen, welche gleichmäßig über den Umfang der Radnabe (4) verteilt sind.7. Fixed caliper disc brake according to one of the preceding claims, characterized in that several, preferably all wheel bolts (3) have a wheel bolt extension (7) which are distributed uniformly over the circumference of the wheel hub (4).
8. Festsattelscheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bolzenverlängerung, insbesondere die Radbolzenverlängerung (7), eine hochfeste Schraubenqualität aufweist. 8. Fixed caliper disc brake according to one of the preceding claims, characterized in that the bolt extension, in particular the wheel bolt extension (7), has a high-strength screw quality.
PCT/EP2001/009780 2000-10-05 2001-08-24 Fixed-caliper disc brake WO2002029273A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001284032A AU2001284032A1 (en) 2000-10-05 2001-08-24 Fixed-caliper disc brake

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000149615 DE10049615B4 (en) 2000-10-05 2000-10-05 Fixed caliper disc brake
DE10049615.6 2000-10-05

Publications (1)

Publication Number Publication Date
WO2002029273A1 true WO2002029273A1 (en) 2002-04-11

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PCT/EP2001/009780 WO2002029273A1 (en) 2000-10-05 2001-08-24 Fixed-caliper disc brake

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AU (1) AU2001284032A1 (en)
DE (1) DE10049615B4 (en)
WO (1) WO2002029273A1 (en)

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EP1258649A2 (en) * 2001-05-18 2002-11-20 Visteon Global Technologies, Inc. Connection of disk brake rotor to vehicle wheel hub
WO2003004896A1 (en) * 2001-07-02 2003-01-16 Haldex Brake Products Ab Connection for a brake disc
CN112377542A (en) * 2020-11-10 2021-02-19 中国北方车辆研究所 Pin column type moving and torque bearing structure for brake

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SE0102350D0 (en) * 2001-07-02 2001-07-02 Haldex Brake Prod Ab Sleeve for a disc brake
DE102004023748A1 (en) † 2004-05-11 2005-12-01 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disc hub assembly with sliding brake disc
DE102005031291A1 (en) * 2005-07-05 2007-01-11 Daimlerchrysler Ag Inexpensive, corrosion-resistant composite brake disk, for use in automobile disk brakes, comprises cast iron carrier disk bonded to friction ring of corrosion-resistant material, e.g. highly alloyed steel
DE102009027082B4 (en) 2009-06-22 2017-07-13 Saf-Holland Gmbh Wheel bearing arrangement with centering

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EP1258649A2 (en) * 2001-05-18 2002-11-20 Visteon Global Technologies, Inc. Connection of disk brake rotor to vehicle wheel hub
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CN112377542A (en) * 2020-11-10 2021-02-19 中国北方车辆研究所 Pin column type moving and torque bearing structure for brake

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Publication number Publication date
AU2001284032A1 (en) 2002-04-15
DE10049615A1 (en) 2002-05-02
DE10049615B4 (en) 2005-04-21

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