FR2728945A1 - Ventilated brake disc, esp. for motor vehicle - Google Patents
Ventilated brake disc, esp. for motor vehicle Download PDFInfo
- Publication number
- FR2728945A1 FR2728945A1 FR9415752A FR9415752A FR2728945A1 FR 2728945 A1 FR2728945 A1 FR 2728945A1 FR 9415752 A FR9415752 A FR 9415752A FR 9415752 A FR9415752 A FR 9415752A FR 2728945 A1 FR2728945 A1 FR 2728945A1
- Authority
- FR
- France
- Prior art keywords
- rings
- brake disc
- annular body
- flat annular
- ventilated 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
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
- F16D65/128—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
- 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
- F16D2065/132—Structure layered
-
- 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
- F16D2065/1392—Connection elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
La présente invention concerne un disque de frein ventilé. The present invention relates to a ventilated brake disc.
La présente invention concerne plus particulièrement un disque de frein ventilé du type comportant au moins deux anneaux opposés liés par une structure de liaison et de support qui permet le passage d'un fluide de refroidissement entre les deux faces en vis-à-vis des anneaux et qui permet par ailleurs la fixation du disque sur un dispositif tournant. The present invention relates more particularly to a ventilated brake disc of the type comprising at least two opposite rings linked by a connection and support structure which allows the passage of a cooling fluid between the two faces opposite the rings and which also allows the attachment of the disc on a rotating device.
De tels dispositifs sont connus et ont été décrits dans les documents FR-A-2.476.780 et FR-A-2.461.847. Such devices are known and have been described in documents FR-A-2,476,780 and FR-A-2,461,847.
Ces dispositifs sont notamment utilisés pour la réalisation d'organes de freinage de véhicules automobiles. These devices are used in particular for the production of motor vehicle braking devices.
Le disque de frein est dans ce cas solidaire d'une roue du véhicule et il est prévu un étrier, solidaire d'un élément de la suspension du véhicule, muni de pistons qui, en vue du freinage, compriment des plaquettes de freinage contre chacune des deux faces externes des anneaux du disque de frein. The brake disc is in this case integral with a vehicle wheel and there is provided a caliper, integral with an element of the vehicle suspension, provided with pistons which, for braking, compress brake pads against each of the two external faces of the rings of the brake disc.
Par rapport au disque de frein massif connu auparavant, le disque ventilé présente l'avantage d'une meilleur dissipation de l'énergie calorifique emmagasinée pendant le freinage du fait des plus grandes surfaces de rayonnement obtenues en dissociant au moins partiellement les deux faces externes du disque. Compared to the previously known solid brake disc, the ventilated disc has the advantage of better dissipation of the heat energy stored during braking because of the larger radiation surfaces obtained by at least partially dissociating the two external faces of the disk.
Toutefois, la géométrie de plus en plus complexe des passages de fluide entre les deux faces opposées du disque rend de plus en plus difficile la réalisation d'un disque de frein sous la forme d'une pièce unique obtenue notamment en fonderie. However, the increasingly complex geometry of the fluid passages between the two opposite faces of the disc makes it more and more difficult to produce a brake disc in the form of a single piece obtained in particular in foundry work.
Par ailleurs, de telles pièces une fois coulées doivent être usinées de manière à réaliser les pistes de frottement sur chaque face externe du disque. Furthermore, such parts once cast must be machined so as to produce the friction tracks on each external face of the disc.
Enfin, l'obtention par fonderie oblige à n'utiliser qu'un seul matériau pour la réalisation de ce disque et d'éventuels traitements thermiques complémentaires doivent être localisés assez précisément pour ne pas affecter des parties du disque ayants des fonctions différentes. Finally, obtaining by foundry requires using only one material for the production of this disc and possible additional heat treatments must be located fairly precisely so as not to affect parts of the disc having different functions.
L'invention a pour but de proposer une nouvelle conception d'un disque de frein ventilé du type mentionné précédemment qui remédie aux inconvénients qui viennent d'être évoqués. The invention aims to propose a new design of a ventilated brake disc of the type mentioned above which overcomes the drawbacks which have just been mentioned.
Dans ce but, l'invention propose un disque de frein ventilé caractérisé en ce que les anneaux sont réalisés sous la forme d'éléments indépendants rapportés sur la structure de liaison et de support. For this purpose, the invention provides a ventilated brake disc characterized in that the rings are made in the form of independent elements attached to the connection and support structure.
Selon d'autres caractéristiques de l'invention
- la structure de liaison et de support comporte un corps annulaire plat de support des anneaux et une partie axiale de liaison prévue pour être fixée au dispositif tournant
- le corps annulaire plat comporte des moyens de positionnement, de fixation et d'entraînement en rotation des anneaux
- les moyens de positionnement et d'entraînement en rotation des anneaux sont des ergots agencés sur les faces opposées du corps annulaire plat et qui sont reçus dans des encoches complémentaires pratiquées dans les anneaux
- chacune des faces opposées du corps annulaire plat comporte une série d'ergots répartis angulairement de manière régulière le long d'un cercle
- les moyens de fixation des anneaux sur le corps annulaire plat sont des agrafes qui enserrent les deux anneaux contre les faces latérales du corps annulaire plat ;;
- le corps annulaire plat comporte une couronne interne et une couronne externe reliées par des entretoises sensiblement radiales qui délimitent entre elles des cavités dans lesquelles circule le fluide
- les couronnes interne et externe du corps annulaire plat comportent des orifices qui permettent la circulation du fluide dans les cavités du corps annulaire plat
- les anneaux comportent sur leurs faces internes en vis-à-vis des moyens qui permettent de canaliser la circulation du fluide de refroidissement et/ou d'améliorer l'échange thermique avec le fluide
- la partie axiale de liaison de la structure de liaison et de support est une douille reliée à la couronne interne du corps annulaire plat et munie d'une bride de fixation
- la structure de liaison et de support est réalisée sous la forme d'une pièce unique.According to other features of the invention
- the connection and support structure comprises a flat annular body for supporting the rings and an axial connection part intended to be fixed to the rotating device
- The flat annular body comprises means for positioning, fixing and driving the rings in rotation
the means for positioning and driving the rings in rotation are lugs arranged on the opposite faces of the flat annular body and which are received in complementary notches made in the rings
each of the opposite faces of the flat annular body has a series of pins distributed angularly in a regular manner along a circle
- The means for fixing the rings to the flat annular body are staples which enclose the two rings against the lateral faces of the flat annular body;
- The flat annular body has an internal ring and an external ring connected by substantially radial spacers which define between them cavities in which the fluid circulates
- the internal and external crowns of the flat annular body have orifices which allow the circulation of the fluid in the cavities of the flat annular body
- The rings have on their internal faces opposite means which make it possible to channel the circulation of the cooling fluid and / or to improve the heat exchange with the fluid
- the axial connection part of the connection and support structure is a socket connected to the internal ring of the flat annular body and provided with a fixing flange
- The connection and support structure is made in the form of a single piece.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels
- La figure 1 est une vue en perspective éclatée avant montage qui illustre une structure de liaison et de support et deux anneaux constitutifs d'un disque de frein selon l'invention
- la figure 2 est une vue en perspective d'un disque de frein selon l'invention.Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the accompanying drawings in which
- Figure 1 is an exploded perspective view before mounting which illustrates a connection and support structure and two rings constituting a brake disc according to the invention
- Figure 2 is a perspective view of a brake disc according to the invention.
La figure 1 est une vue en perspective représentant les principaux éléments constitutifs d'un disque de frein ventilé selon l'invention. Figure 1 is a perspective view showing the main components of a ventilated brake disc according to the invention.
Sont représentés sur la figure 1 une structure de liaison et de support 10 et deux anneaux 14A, 14B. Are shown in Figure 1 a connecting structure and support 10 and two rings 14A, 14B.
La structure de liaison et de support 10 comporte un corps de forme générale annulaire plate 16 et une partie axiale de liaison 18 munie d'une bride 20. The connection and support structure 10 comprises a generally annular flat body 16 and an axial connection part 18 provided with a flange 20.
Le corps annulaire plat 16 comporte une couronne interne 22 et une couronne externe 24 reliées entre elles par des entretoises 26 sensiblement radiales qui délimitent entre elles des cavités 28 dans lesquelles peut circuler un fluide de refroidissement, tel que par exemple l'air environnant. The flat annular body 16 comprises an internal ring 22 and an external ring 24 connected to each other by substantially radial spacers 26 which delimit cavities 28 in which can circulate a cooling fluid, such as for example the surrounding air.
Selon une caractéristique de l'invention, les couronnes 22, 24 et les entretoises 26 sont réalisées en une seule pièce. According to a characteristic of the invention, the rings 22, 24 and the spacers 26 are made in one piece.
Des orifices 30 et 32 sont prévus respectivement dans les couronnes interne 22 et externe 24 pour permettre l'entrée et la sortie du fluide dans les cavités 28 du corps annulaire plat 16. Ports 30 and 32 are provided respectively in the internal 22 and external 24 rings to allow the entry and exit of the fluid in the cavities 28 of the flat annular body 16.
La couronne externe 24 du corps annulaire plat 16 comporte également sur chacune de ses faces latérales opposées 25A, 25B des ergots 34A, 34B répartis angulairement de manière régulière le long d'un cercle. The outer ring 24 of the flat annular body 16 also has on each of its opposite lateral faces 25A, 25B lugs 34A, 34B distributed angularly in a regular manner along a circle.
Les anneaux 14A, 14B sont munis d'encoches 36A, 36B complémentaires des ergots 34A, 34B du corps annulaire plat 16. The rings 14A, 14B are provided with notches 36A, 36B complementary to the lugs 34A, 34B of the flat annular body 16.
Les ergots 34A, 34B et les encoches 36A, 36B coopèrent pour assurer le centrage et l'entraînement en rotation des anneaux 14A, 14B par la structure 10. The pins 34A, 34B and the notches 36A, 36B cooperate to ensure the centering and the rotational drive of the rings 14A, 14B by the structure 10.
La face latérale externe 17A, 17B de chaque anneau est une piste de frottement du disque de frein. The external lateral face 17A, 17B of each ring is a friction track of the brake disc.
La figure 2 est une vue en perspective d'un disque de frein ventilé selon l'invention assemblé. Figure 2 is a perspective view of a ventilated brake disc according to the invention assembled.
Les anneaux 14A, 14B sont montés de part et d'autre du corps annulaire 16, les ergots 34A, 34B de la couronne extérieure 24 du corps annulaire 16 étant reçus dans les encoches 36A, 36B correspondantes des anneaux 14A, 14B. The rings 14A, 14B are mounted on either side of the annular body 16, the pins 34A, 34B of the outer ring 24 of the annular body 16 being received in the corresponding notches 36A, 36B of the rings 14A, 14B.
Les deux anneaux sont maintenus en position par des agrafes 38 réparties régulièrement le long de la périphérie du disque qui serrent axialement les anneaux contre les faces latérales opposées 25A, 25B. The two rings are held in position by staples 38 distributed regularly along the periphery of the disc which axially clamp the rings against the opposite lateral faces 25A, 25B.
On distingue par ailleurs les orifices 30 et 32 qui permettent le passage du fluide de refroidissement entre les deux faces internes en vis-à-vis 15A, 15B des anneaux 14A, 14B. There are also the orifices 30 and 32 which allow the passage of the cooling fluid between the two internal faces facing each other 15A, 15B from the rings 14A, 14B.
L'invention n' est pas limitée aux éléments tels que représentés sur la figure. The invention is not limited to the elements as shown in the figure.
En effet, pour mieux canaliser le fluide circulant entre les deux anneaux 14A, 14B il peut être envisagé de modifier la géométrie des orifices 30 ou 32 ou la géométrie des entretoises 26, les entretoises 26 pouvant notamment prendre une forme en spirale afin de créer un effet de turbine. Indeed, to better channel the fluid flowing between the two rings 14A, 14B, it can be envisaged to modify the geometry of the orifices 30 or 32 or the geometry of the spacers 26, the spacers 26 being able in particular to take a spiral shape in order to create a turbine effect.
De la même manière les faces internes en vis-à-vis 15A, 15B des anneaux 14A, 14B peuvent comporter des dispositifs visant à améliorer l'échange thermique entre les anneaux et le fluide de refroidissement et/ou des nervures en relief. In the same way, the internal faces facing 15A, 15B of the rings 14A, 14B may include devices aimed at improving the heat exchange between the rings and the cooling fluid and / or raised ribs.
I1 apparaît clairement que la structure particulière de ce disque de frein ventilé en trois éléments permet de réaliser de telles géométries complexes de manière simple et indépendante. It appears clearly that the particular structure of this brake disc ventilated in three elements makes it possible to produce such complex geometries in a simple and independent manner.
En effet, les différents usinages nécessaires pourront être réalisés plus simplement et avec plus de précision. In fact, the various machining operations necessary can be carried out more simply and with greater precision.
Par ailleurs, chaque élément peut être réalisé avec le matériau le plus adapté à sa fonction. Furthermore, each element can be made with the material most suited to its function.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9415752A FR2728945A1 (en) | 1994-12-28 | 1994-12-28 | Ventilated brake disc, esp. for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9415752A FR2728945A1 (en) | 1994-12-28 | 1994-12-28 | Ventilated brake disc, esp. for motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2728945A1 true FR2728945A1 (en) | 1996-07-05 |
| FR2728945B1 FR2728945B1 (en) | 1997-02-28 |
Family
ID=9470318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9415752A Granted FR2728945A1 (en) | 1994-12-28 | 1994-12-28 | Ventilated brake disc, esp. for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2728945A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085569A1 (en) * | 2006-01-24 | 2007-08-02 | Nice Spa | Support piece for braking element |
| WO2007096371A1 (en) * | 2006-02-21 | 2007-08-30 | Mako Shark S.R.L. | Brake disc |
| CN108317194A (en) * | 2018-03-26 | 2018-07-24 | 湖南世鑫新材料有限公司 | Bullet train axle-mounted brake disk component |
| CN108561459A (en) * | 2018-06-07 | 2018-09-21 | 北京天宜上佳高新材料股份有限公司 | A kind of combined type brake disc and brake apparatus |
| IT201800020128A1 (en) * | 2018-12-18 | 2020-06-18 | Freni Brembo Spa | Braking band of a ventilated type disc brake disc |
| IT201900013047A1 (en) * | 2019-07-26 | 2021-01-26 | Ferdiam S R L | BRAKE DISC FOR A BRAKING SYSTEM |
| CN113187834A (en) * | 2021-03-31 | 2021-07-30 | 中京吉泰(北京)科技有限责任公司 | Outer hoop locking type anti-warping brake disc |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2071907A5 (en) * | 1969-12-09 | 1971-09-17 | Porsche Kg | |
| FR2326623A1 (en) * | 1975-10-01 | 1977-04-29 | Girling Ltd | Friction disc for expansion brakes - has projections on faces of linings located in holes in support plate with linings held by spring clips |
| US4177883A (en) * | 1976-12-11 | 1979-12-11 | Girling Limited | Discs for disc brakes |
| WO1979001105A1 (en) * | 1978-05-23 | 1979-12-13 | Selzer Fertigungstech | Disc for a disc brake,in particular for a vehicle brake |
| AU542345B2 (en) * | 1981-05-18 | 1985-02-21 | Automotive Products Ltd. | A disc for a disc brake |
| GB2151729A (en) * | 1983-12-21 | 1985-07-24 | Europ Propulsion | Brake disc with removable pads |
| GB2228053A (en) * | 1989-02-08 | 1990-08-15 | Automotive Products Plc | Brake disc |
| JPH0526268A (en) * | 1991-07-19 | 1993-02-02 | Izumi Ind Ltd | Brake disc and manufacture thereof |
-
1994
- 1994-12-28 FR FR9415752A patent/FR2728945A1/en active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2071907A5 (en) * | 1969-12-09 | 1971-09-17 | Porsche Kg | |
| FR2326623A1 (en) * | 1975-10-01 | 1977-04-29 | Girling Ltd | Friction disc for expansion brakes - has projections on faces of linings located in holes in support plate with linings held by spring clips |
| US4177883A (en) * | 1976-12-11 | 1979-12-11 | Girling Limited | Discs for disc brakes |
| WO1979001105A1 (en) * | 1978-05-23 | 1979-12-13 | Selzer Fertigungstech | Disc for a disc brake,in particular for a vehicle brake |
| AU542345B2 (en) * | 1981-05-18 | 1985-02-21 | Automotive Products Ltd. | A disc for a disc brake |
| GB2151729A (en) * | 1983-12-21 | 1985-07-24 | Europ Propulsion | Brake disc with removable pads |
| GB2228053A (en) * | 1989-02-08 | 1990-08-15 | Automotive Products Plc | Brake disc |
| JPH0526268A (en) * | 1991-07-19 | 1993-02-02 | Izumi Ind Ltd | Brake disc and manufacture thereof |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 17, no. 306 (M - 1428) * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085569A1 (en) * | 2006-01-24 | 2007-08-02 | Nice Spa | Support piece for braking element |
| WO2007096371A1 (en) * | 2006-02-21 | 2007-08-30 | Mako Shark S.R.L. | Brake disc |
| CN108317194A (en) * | 2018-03-26 | 2018-07-24 | 湖南世鑫新材料有限公司 | Bullet train axle-mounted brake disk component |
| CN108317194B (en) * | 2018-03-26 | 2024-03-12 | 湖南世鑫新材料有限公司 | Shaft-mounted brake disc assembly for high-speed train |
| CN108561459A (en) * | 2018-06-07 | 2018-09-21 | 北京天宜上佳高新材料股份有限公司 | A kind of combined type brake disc and brake apparatus |
| IT201800020128A1 (en) * | 2018-12-18 | 2020-06-18 | Freni Brembo Spa | Braking band of a ventilated type disc brake disc |
| WO2020128705A1 (en) * | 2018-12-18 | 2020-06-25 | Freni Brembo S.P.A. | Braking band of a disc for disc brake of ventilated type |
| US11846334B2 (en) | 2018-12-18 | 2023-12-19 | Brembo S.P.A. | Braking band of a disc for disc brake of ventilated type |
| IT201900013047A1 (en) * | 2019-07-26 | 2021-01-26 | Ferdiam S R L | BRAKE DISC FOR A BRAKING SYSTEM |
| WO2021019408A1 (en) * | 2019-07-26 | 2021-02-04 | Ferdiam S.R.L. | Brake disc for a braking system |
| CN113187834A (en) * | 2021-03-31 | 2021-07-30 | 中京吉泰(北京)科技有限责任公司 | Outer hoop locking type anti-warping brake disc |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2728945B1 (en) | 1997-02-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| CA | Change of address | ||
| CD | Change of name or company name | ||
| CJ | Change in legal form | ||
| ST | Notification of lapse |
Effective date: 20100831 |