DE3026886A1 - Air cooled brake disc for vehicle - has spaced rings connected to hub by radial spacer arms, increasing in thickness for rigidity - Google Patents

Air cooled brake disc for vehicle - has spaced rings connected to hub by radial spacer arms, increasing in thickness for rigidity

Info

Publication number
DE3026886A1
DE3026886A1 DE19803026886 DE3026886A DE3026886A1 DE 3026886 A1 DE3026886 A1 DE 3026886A1 DE 19803026886 DE19803026886 DE 19803026886 DE 3026886 A DE3026886 A DE 3026886A DE 3026886 A1 DE3026886 A1 DE 3026886A1
Authority
DE
Germany
Prior art keywords
hub
friction rings
brake disc
rings
rigidity
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
DE19803026886
Other languages
German (de)
Inventor
Herbert 6230 Frankfurt Schmidt
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves 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 Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DE19803026886 priority Critical patent/DE3026886A1/en
Publication of DE3026886A1 publication Critical patent/DE3026886A1/en
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
    • 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
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • 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
    • F16D2065/1348—Connection resilient
    • 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
    • F16D2065/1368—Connection interlocking with relative movement both radially and axially

Landscapes

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

Abstract

The air cooled disc for a vehicle disc brake is designed for rigidity. It consists of two friction rings spaced apart to permit air to circulate between them, attached to a ring shaped hub with splines around the inside so that it can slide axially into position along a supporting member. The two rings are connected by bridging sections in the form of radial arms, so as to form square section radial air channels between the rings. These arms terminate in extensions connecting them to the hub. These extensions slope outwards towards the hub, so as to project beyond the width of the rings.

Description

Verwindungssteife Bremsscheibe mit Innen-VentilationskühlungTorsion-resistant brake disc with internal ventilation cooling

Die Erfindung bezieht sich auf eine Bremsscheibe mit Innen-Ventilationskühlung für Scheibenbremsen, bei der in axialem Abstand angeordnete Reibringe über radiale Strömungskanäle bildende Rippen verbunden sind, von denen einige sich radial nach innen über die Reibringe hinaus zur Nabe hin erstreckende Stege bilden und die Nabe mit den Reibringen verbinden.The invention relates to a brake disc with internal ventilation cooling for disc brakes, in which axially spaced friction rings over radial ones Flow channels forming ribs are connected, some of which extend radially on the inside beyond the friction rings to form the hub extending webs and the hub connect with the friction rings.

Bei derartigen Bremsscheiben treten infolge der hohen thermischen und mechanischen Beanspruchungen Verwerfungen der Scheibenoberfläche und Verwindungen der Anordnung Reibringe -Nabe auf. Dadurch entstehen örtliche Uberhitzungen und als Folge Risse, die schließlich zur Zerstörung der Bremsscheibe führen. Bei einer axial verschiebbar ausgeführten Bremsscheibe besteht darüber hinaus die Gefahr der Blockierung der axialen Bewegungsmöglichkeit.In such brake disks occur as a result of the high thermal and mechanical stresses, warping of the pane surface and twisting the arrangement of the friction rings and the hub. This causes local overheating and as a result, cracks that ultimately lead to the destruction of the brake disc. At a There is also the risk of axially displaceable brake disc Blocking the possibility of axial movement.

In der DE-OS 16 3c 304 wird eine Anordnung beschrieben, die die Verwerfungen in der Oberfläche der Reibringe verhindern soll. Dazu werden die Verbindungsrippen der Reibringe so ausgeführt, daß sie in ihrem gekrümmten Verlauf stets gleichen Abstand voneinander haben.In DE-OS 16 3c 304 an arrangement is described that the warps to prevent in the surface of the friction rings. To do this, the connecting ribs the friction rings are designed so that they are always the same in their curved course Have a distance from each other.

Um die Verspannungen zwischen Reibringen und Nabe abzubauen, werden Stege als Dehnglieder zwischen den Reibringen und der Nabe angeordnet, wie in der GB-PS 14 21 952 beschrieben; die beschriebene Ausführung besitzt zudem durch die Verlängerung von Verbindungsrippen der Reibringe zu Stegen einen strömungsgünstigen Lufteintritt in die radialen Ströeungskanäle zwischen den Reibringen.In order to reduce the tension between friction rings and hub, Bars arranged as expansion links between the friction rings and the hub, as in the GB-PS 14 21 952 described; the embodiment described also has the Extension of connecting ribs of the friction rings to webs a flow-favorable Air entry into the radial flow channels between the friction rings.

Ist die Bremsscheibe axial verschiebbar auszuführen, so ergeben sich Optimierungsprobleme in Hinsicht auf die Steifigkeit gegen radiale und axiale Verspannungen der Verbindung Reibringe - Nabe einerseits und der erforderlichen Verschiebbarkeit andererseits.If the brake disc is designed to be axially displaceable, then this results Optimization problems with regard to the rigidity against radial and axial tension the connection between friction rings and hub on the one hand and the required mobility on the other hand.

Bei nicht ausreichender Steifigkeit gegen zwangsläufig vorhandene, axiale Verspannungskomponenten können insbesondere bei größerem Abstand von Reibringen und Nabe wellenförmige Verwerftuigen der Anordnung Reibringe - Nabe aufgrund der axial gerichteten Momente auftreten, die überhitzungen und Hitzerisse zur Folge haben.If there is insufficient rigidity against inevitably existing, Axial tension components can, in particular, with a greater distance from friction rings and hub wave-shaped discarding the assembly friction rings - hub due to the axially directed moments occur, which result in overheating and heat cracks to have.

Der Erfindung liegt die Aufgabe zugrunde, eine Bremsscheibe der eingangs genannten Art zu schaffen, die eine ausreichende Steifigkeit auch gegen axiale Verwerfungen der Reibringe gegen über der Nabe hat und die unter allen Betriebsbedingungen axial verschiebbar bleibt.The invention is based on the object of providing a brake disc of the initially mentioned to create the type mentioned, which have sufficient rigidity against axial distortions which has friction rings opposite the hub and which is axial under all operating conditions remains movable.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Stege in axialer Richtung über die Reibringe hinausragen.According to the invention this object is achieved in that the webs in protrude in the axial direction over the friction rings.

Erstreckt sich die Nabe axial über die Reibringe hinaus, so ist die Stegbreite beim Eintritt in die Nabe in einer zweckmäßigen Ausgestaltung gleich der Nabenbreite.If the hub extends axially beyond the friction rings, then the The web width when entering the hub is the same in an expedient embodiment the hub width.

Der Hauptvorteil der Erfindung liegt darin, daß bei den voxhandenen komplexen Verspannungsbeanspructlungen nicht nur die Auswirkungen des radialen Anteils durch entsprechende Auslegung der Stege ahgefangen werden können, sondern auch die bisher nicht aufgefangenen Auswirkungen des axialen Anteils durch das hohe Widerstandsmoment infolge der erfindungsgemäßen Ausbildung der Stege nicht entstehen können.The main advantage of the invention is that in the voxhandenen complex stresses not only the effects of the radial part can be caught by appropriate design of the webs, but also the Effects of the axial component due to the high section modulus that have not yet been absorbed can not arise due to the inventive design of the webs.

Ein Ausführungsbeispiel der-Erfindung ist in der Zeichnung dargestellt und im folgenden näher beschrieben; es zeigen: Figur 1 die Schnittdarstellung einer erfindungsgemäßen Bremsscheibe entlang eines Steges bzw.An embodiment of the invention is shown in the drawing and described in more detail below; The figures show: FIG. 1 the sectional view of a Brake disk according to the invention along a web or

einer Verbindungsrippe, Figur 2 die Ansicht einer erfindungsgemäßen Bremsscheibe. a connecting rib, Figure 2 is a view of an inventive Brake disc.

Die als Gußteil ausgeführte Bremsscheibe 1 hat zwei Reibringe 5, die in axialem Abstand voneinander angeordnet sind; die Reibringe 5 sind verbunden über radial von innen nach außen laufende, schaufelförmige Verbindungsrippen 6, die zusammen mit den Innenseiten der Reibringe 5 Kanäle 7 für die von innen nach außen durchströmende Luft bilden; die Verlängerungen einiger der Verbindungsrippen 6 bilden die Stege 3, die die Reibringe 5 mit der Nabe 4 verbinden und deren beispielsweise gekrümmter Verlauf die Nachgiebigkeit gegen radiale Belastung sicherstellt. Die Stege 3 sind mit der Nabe 4 in Form eines Hohlzylinders verbunden, die an ihrer Innenseite ein Vielkeilprofil 9 hat, mit dem die Nabe 4 und mit ihr die Bremsscheibe 1 drehfest, aber axial verschiebbar auf einem nicht gezeichneten, rotierenden Teil mit dem entsprechenden Gegenprofil angeordnet ist. Die Reibringe 5 und die Nabe 4 sind vorzugsweise symmetrisch zueinander angeordnet und durch die Stege 3 verbunden, wobei die Stegbreite am nabenseitigen Ende im wesentlichen der axialen Nabenlänge und die Breite am anderen Ende im wesentlichen der Breite der Reibeinheit 2 entspricht; in der Abwicklung des gekrümmten Verlaufs der Stege 3 ändert sich die Stregbreite kontinuierlich.The brake disc 1 designed as a cast part has two friction rings 5 which are arranged at an axial distance from one another; the friction rings 5 are connected via Shovel-shaped connecting ribs 6 running radially from the inside to the outside, which together with the insides of the friction rings 5 channels 7 for the flow through from the inside to the outside Form air; the extensions of some of the connecting ribs 6 form the webs 3, which connect the friction rings 5 to the hub 4 and their, for example, curved Course ensures compliance against radial loads. The webs 3 are connected to the hub 4 in the form of a hollow cylinder, which on its inside a Has splined profile 9, with which the hub 4 and with it the brake disc 1 rotatably, but axially displaceable on a rotating part (not shown) with the corresponding one Counter profile is arranged. The friction rings 5 and the hub 4 are preferably symmetrical arranged to each other and connected by the webs 3, the web width on the hub side End of substantially the axial hub length and the width at the other end substantially corresponds to the width of the friction unit 2; in the development of the curved course of the webs 3, the web width changes continuously.

In den Figuren 1 und 2 ist eine verwindungssteife Ausführung mit großer Breite für das radial äußere Stegende sowie im gesamten Verlauf dargestellt; wie in Figur 2 deutlich zu erkennen, bewirken die über die Reibringe hinausragenden Stegteile auch eine Verbesserung der Ventilationskühlung. LeerseiteIn Figures 1 and 2 is a torsion-resistant design with a large Width shown for the radially outer end of the web as well as in the entire course; how can be clearly seen in Figure 2, cause the protruding over the friction rings Bridge parts also improve ventilation cooling. Blank page

Claims (2)

Patentansprüche S Bremsscheibe mit Innen - Ventilationskühlung für Scheibenbremsen, bei der in axialem Abstand angeordnete Reibringe über radiale Strömungskanäle bildende Rippen verbunden sind, von denen einige sich radial nach innen über die Reibringe hinaus zur Nabe hin erstreckende Stege bilden und die Nabe mit den Reibringen verbinden, dadurch g e k e n n -z e i c h n e t, daß die Stege (3) in axialer Richtung über die Reibringe (5) hinausragen. Claims S brake disc with internal ventilation cooling for Disc brakes with axially spaced friction rings via radial flow channels forming ribs, some of which extend radially inward over the Friction rings also form webs extending towards the hub and the hub with the friction rings connect, thereby g e k e n n -z e i c h n e t that the webs (3) in the axial direction protrude beyond the friction rings (5). 2. Bremsscheibe nach Anspruch 1, dadurch g e k e n n -z e i c h n e t, daß die Stegbreite sich kontinuierlich zur Nabe (4) hin vergrößert und die Stegbreite an der Übergangsstelle in die Nabe (4) gleich der axialen Nabenbreite ist. 2. Brake disc according to claim 1, characterized in that g e k e n n -z e i c h n e t that the web width increases continuously towards the hub (4) and the The web width at the transition point into the hub (4) is equal to the axial hub width is.
DE19803026886 1980-07-16 1980-07-16 Air cooled brake disc for vehicle - has spaced rings connected to hub by radial spacer arms, increasing in thickness for rigidity Ceased DE3026886A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803026886 DE3026886A1 (en) 1980-07-16 1980-07-16 Air cooled brake disc for vehicle - has spaced rings connected to hub by radial spacer arms, increasing in thickness for rigidity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803026886 DE3026886A1 (en) 1980-07-16 1980-07-16 Air cooled brake disc for vehicle - has spaced rings connected to hub by radial spacer arms, increasing in thickness for rigidity

Publications (1)

Publication Number Publication Date
DE3026886A1 true DE3026886A1 (en) 1982-02-04

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ID=6107307

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803026886 Ceased DE3026886A1 (en) 1980-07-16 1980-07-16 Air cooled brake disc for vehicle - has spaced rings connected to hub by radial spacer arms, increasing in thickness for rigidity

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DE (1) DE3026886A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089554A2 (en) * 1982-03-19 1983-09-28 Nissan Motor Co., Ltd. Disk brake rotor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1206671A (en) * 1958-04-09 1960-02-11 Batignolles Chatillon Cooling brake
DE2302455A1 (en) * 1972-02-23 1973-08-30 Pont A Mousson FROM A CIRCULATING BEARING TO BE BRAKED AND AT LEAST ONE DEVICE ON THIS FIXED BRAKE DISC, IN PARTICULAR RAILWAY WHEEL
DE2557649A1 (en) * 1975-12-20 1977-06-30 Schwaebische Huettenwerke Gmbh BRAKE DISC FOR DISC BRAKES

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1206671A (en) * 1958-04-09 1960-02-11 Batignolles Chatillon Cooling brake
DE2302455A1 (en) * 1972-02-23 1973-08-30 Pont A Mousson FROM A CIRCULATING BEARING TO BE BRAKED AND AT LEAST ONE DEVICE ON THIS FIXED BRAKE DISC, IN PARTICULAR RAILWAY WHEEL
DE2557649A1 (en) * 1975-12-20 1977-06-30 Schwaebische Huettenwerke Gmbh BRAKE DISC FOR DISC BRAKES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089554A2 (en) * 1982-03-19 1983-09-28 Nissan Motor Co., Ltd. Disk brake rotor
EP0089554A3 (en) * 1982-03-19 1983-11-16 Nissan Motor Company, Limited Disk brake rotor

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8131 Rejection