FR2908713A1 - BEARING BEARING ASSEMBLY COMPRISING A NON-CONTACT ENERGY AND / OR INFORMATION TRANSFER DEVICE - Google Patents
BEARING BEARING ASSEMBLY COMPRISING A NON-CONTACT ENERGY AND / OR INFORMATION TRANSFER DEVICE Download PDFInfo
- Publication number
- FR2908713A1 FR2908713A1 FR0610092A FR0610092A FR2908713A1 FR 2908713 A1 FR2908713 A1 FR 2908713A1 FR 0610092 A FR0610092 A FR 0610092A FR 0610092 A FR0610092 A FR 0610092A FR 2908713 A1 FR2908713 A1 FR 2908713A1
- Authority
- FR
- France
- Prior art keywords
- transfer device
- bearing assembly
- assembly according
- seal
- fixed member
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0094—Hubs one or more of the bearing races are formed by the hub
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0005—Hubs with ball bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0073—Hubs characterised by sealing means
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Abstract
L'invention concerne un montage de palier à roulement comprenant un organe fixe (1), un organe tournant (2) et des corps roulants (3) disposés dans un espace de roulement prévu entre lesdits organes pour permettre leur rotation relative, ledit montage comprenant en outre un dispositif de transfert sans contact d'énergie et/ou d'information entre l'organe fixe (1) et l'organe tournant (2), ledit dispositif de transfert comprenant deux éléments de communication (11, 12) respectivement solidaires d'un organe (1, 2) et qui sont disposés à distance de transfert l'un de l'autre, dans lequel le dispositif de transfert comprend deux armatures (15, 16) porte élément de communication (11, 12), lesdites armatures étant respectivement solidaires de l'organe fixe (1) et de l'organe tournant (2), lesdites armatures portant en outre des joints d'étanchéité (17, 18) qui sont disposés de sorte à étanchéifier un côté de l'espace de roulement et à former un logement annulaire étanche entre lesdites armatures, lesdits éléments de communication étant disposés dans ledit logement étanche.The invention relates to a rolling bearing assembly comprising a fixed member (1), a rotating member (2) and rolling bodies (3) arranged in a running space provided between said members to allow their relative rotation, said assembly comprising in addition, a non-contact energy and / or information transfer device between the fixed member (1) and the rotating member (2), said transfer device comprising two communication elements (11, 12) respectively integral of a member (1, 2) and which are arranged at a transfer distance from each other, wherein the transfer device comprises two reinforcements (15, 16) carries communication element (11, 12), said reinforcements being secured respectively to the fixed member (1) and to the rotating member (2), said reinforcements also bearing seals (17, 18) which are arranged so as to seal one side of the space rolling and forming a sealed ring housing e between said armatures, said communication elements being arranged in said sealed housing.
Description
1 L'invention concerne un montage de palier à roulement comprenant unThe invention relates to a rolling bearing arrangement comprising a
dispositif de transfert sans contact d'énergie et/ou d'information entre l'organe fixe et l'organe tournant. transfer device without energy contact and / or information between the fixed member and the rotating member.
Dans un exemple d'application, le rnontage est destiné à l'association d'une roue de véhicule automobile sur la caisse dudit véhicule, le dispositif de transfert permettant notamment que des informations provenant de la roue puissent être exploitées par les calculateurs du véhicule. En particulier, ces informations peuvent concerner les conditions de roulage de la roue, telles que la pression du pneu, les efforts subits, la vitesse de rotation, .... En outre, pour détecter ces informations au niveau de la roue, il est nécessaire de solidariser des capteurs à ladite roue. Du fait de leur disposition dans un référentiel tournant, ces capteurs ne peuvent pas être directement connectés au véhicule et doivent donc être électriquement autonomes. Pour surmonter les limitations inhérentes à cette autonomie, notamment relativement à l'utilisation de piles, il a été proposé d'utiliser des dispositifs de transfert sans contact d'énergie, par exemple basés sur le couplage magnétique entre une bobine fixe et une bobine tournante. In an exemplary application, the assembly is intended for the association of a motor vehicle wheel on the body of said vehicle, the transfer device allowing in particular that information from the wheel can be used by the computers of the vehicle. In particular, this information may relate to the rolling conditions of the wheel, such as the tire pressure, the sudden forces, the speed of rotation, etc. Moreover, to detect this information at the level of the wheel, it is necessary to secure sensors to said wheel. Due to their arrangement in a rotating reference system, these sensors can not be directly connected to the vehicle and must therefore be electrically autonomous. To overcome the limitations inherent in this autonomy, particularly with regard to the use of batteries, it has been proposed to use non-contact energy transfer devices, for example based on the magnetic coupling between a fixed coil and a rotating coil. .
Toutefois, l'implantation de tels dispositifs de transfert pose de nombreux problèmes. Tout d'abord, l'environnement au niveau de l'interface entre l'organe tournant et l'organe fixe impose une distance de transfert relativement faible dans un espace disponible réduit. En outre, les problèmes liés à l'étanchéité sont également critiques, et ce tant pour les composants du dispositif de transfert qu'au niveau de l'interface entre l'organe fixe et l'organe tournant. L'invention a pour but de résoudre les problèmes de l'art antérieur en proposant notamment un montage de palier dans lequel un dispositif de transfert est agencé pour être implanté en respectant les contraintes d'encombrement et d'étanchéité. However, the implementation of such transfer devices poses many problems. Firstly, the environment at the interface between the rotating member and the fixed member imposes a relatively small transfer distance in a reduced available space. In addition, the problems related to sealing are also critical, both for the components of the transfer device and at the interface between the fixed member and the rotating member. The object of the invention is to solve the problems of the prior art by proposing in particular a bearing assembly in which a transfer device is arranged to be implanted while respecting the constraints of space and tightness.
2908713 2 A cet effet, l'invention propose un montage de palier à roulement comprenant un organe fixe, un organe tournant et des corps roulants disposés dans un espace de roulement prévu entre lesdits organes pour permettre leur rotation relative, ledit montage comprenant en outre un dispositif de transfert sans 5 contact d'énergie et/ou d'information entre l'organe fixe et l'organe tournant, ledit dispositif de transfert comprenant deux éléments de communication respectivement solidaires d'un organe et qui sont disposés à distance de transfert l'un de l'autre, dans lequel le dispositif de transfert comprend deux armatures porte élément de communication, lesdites armatures étant 10 respectivement solidaires de l'organe tournant et de l'organe fixe, lesdites armatures portant en outre des joints d'étanchéité qui sont disposés de sorte à étanchéifier un côté de l'espace de roulement et à former un logement annulaire étanche entre lesdites armatures, lesdits éléments de communication étant disposés dans ledit logement étanche.To this end, the invention proposes a rolling bearing assembly comprising a fixed member, a rotating member and rolling bodies arranged in a running space provided between said members to allow their relative rotation, said assembly further comprising a transfer device without energy and / or information contact between the fixed member and the rotating member, said transfer device comprising two communication elements respectively integral with a member and which are arranged at a transfer distance one of the other, in which the transfer device comprises two armatures carrying communication element, said armatures being respectively integral with the rotating member and the fixed member, said armatures bearing further gaskets which are arranged so as to seal one side of the running space and to form a sealed annular housing between said frames, said elements communicating ts being disposed in said sealed housing.
15 D'autres objets et avantages de l'invention apparaîtront dans la description qui suit faite en référence aux figures annexées, dans lesquelles : - la figure 1 est une vue partielle en coupe d'un montage de palier selon un mode de réalisation de l'invention ; 20 - la figure 2 est une vue agrandie d'une partie de la figure 1 montrant plus particulièrement le dispositif de transfert. En relation avec les figures, on décrit ci-dessous un montage de palier à roulement pour le guidage en rotation d'une roue de véhicule automobile par 25 rapport à la caisse dudit véhicule. Pour ce faire, le montage comprend un organe fixe 1 destiné à être solidarisé à la caisse, un organe tournant 2 auquel la roue est destinée à être solidarisé en rotation et des corps roulants 3 disposés dans un espace de roulement prévu entre lesdits organes pour permettre leur rotation relative.Other objects and advantages of the invention will appear in the following description given with reference to the appended figures, in which: FIG. 1 is a partial sectional view of a bearing assembly according to an embodiment of the invention; invention; Figure 2 is an enlarged view of a portion of Figure 1 showing more particularly the transfer device. In connection with the figures, a rolling bearing arrangement is described below for guiding a motor vehicle wheel in rotation with respect to the body of said vehicle. To do this, the assembly comprises a fixed member 1 intended to be secured to the body, a rotating member 2 to which the wheel is intended to be secured in rotation and the rolling bodies 3 arranged in a running space provided between said bodies to allow their relative rotation.
30 Bien que la description soit faite en relation avec cette application particulière, l'invention trouve également son intérêt pour d'autres applications d'un montage de palier à roulement dans lesquelles il est nécessaire de transférer sans 2908713 3 contact de l'énergie et/ou des informations. Par ailleurs, les figures représentent un mode de réalisation particulier d'un montage pour roue de véhicule automobile, mais il existe un grand nombre de montages de roue dans lesquels l'homme du métier pourrait mettre en oeuvre les caractéristiques décrites ci- 1 dessous. L'organe intérieur tournant 2 comprend un moyeu 4 sur lequel est formée une bride de fixation 5 de la roue, ladite bride étant pourvue de trous axiaux 6 qui sont prévus pour coopérer avec des organes de fixation, tels que des boulons, 10 de la roue au moyeu 4. L'organe extérieur fixe 1 est une pièce généralement cylindrique qui est montée coaxialement autour du moyeu 4. L'organe fixe 1 comprend également une bride de fixation 7 à la caisse qui est pourvue de trous de fixation 8.Although the description is made in connection with this particular application, the invention is also of interest for other applications of a rolling bearing arrangement in which it is necessary to transfer without energy contact and / or information. Furthermore, the figures show a particular embodiment of a mounting for a motor vehicle wheel, but there is a large number of wheel assemblies in which the skilled person could implement the features described below. The rotating inner member 2 comprises a hub 4 on which is formed a fixing flange 5 of the wheel, said flange being provided with axial holes 6 which are provided to cooperate with fasteners, such as bolts, 10 of the The fixed outer member 1 is a generally cylindrical part which is mounted coaxially around the hub 4. The fixed member 1 also comprises a fastening flange 7 to the box which is provided with fixing holes 8.
15 Dans le mode de réalisation représenté, la rotation relative du moyeu 4 et de l'organe fixe 1 est assurée par deux rangées de billes 3 qui sont espacées axialement et disposées dans l'espace de roulement formé entre ledit moyeu et ledit organe fixe. Les billes 3 de chaque rangée sont maintenues à équidistance 20 par une cage 9 et disposées entre des pistes de roulement intérieures et extérieures. Sur la figure 1, pour la rangée avant de billes 3 (à gauche sur la figure), la piste de roulement intérieure est formée sur la surface extérieure du moyeu 4, et la 25 piste de roulement extérieure est formée, en regard de la piste intérieure, sur la surface intérieure de l'organe fixe 1. D'autre part, pour la rangée arrière de billes 3, la piste de roulement extérieure est également formée sur la surface intérieure de l'organe fixe 1, et la piste de roulement intérieure est réalisée sur une bague 10 qui est immobilisée sur la surface extérieure du moyeu 4.In the embodiment shown, the relative rotation of the hub 4 and the fixed member 1 is ensured by two rows of balls 3 which are spaced axially and arranged in the running space formed between said hub and said fixed member. The balls 3 of each row are held equidistantly by a cage 9 and disposed between inner and outer raceways. In FIG. 1, for the front row of balls 3 (left in the figure), the inner raceway is formed on the outer surface of the hub 4, and the outer raceway is formed, facing the track on the inner surface of the fixed member 1. On the other hand, for the rear row of balls 3, the outer race is also formed on the inner surface of the fixed member 1, and the raceway interior is made on a ring 10 which is immobilized on the outer surface of the hub 4.
30 Le montage comprend en outre un dispositif de transfert sans contact d'énergie et/ou d'information entre l'organe fixe 1 et l'organe tournant 2. Ce type de dispositif permet notamment d'alimenter en électricité des capteurs solidaires 2908713 4 de la roue et/ou de rendre disponible des informations provenant de ladite roue. En particulier, l'information concernée peut être la pression du pneu, les efforts subits par la roue et/ou l'organe tournant 2, la vitesse de rotation, .... Les capteurs solidaires de la roue sont alors agencés pour pouvoir détecter 5 respectivement ces informations, et sont disposés de sorte à permettre cette détection. Pour ce faire, le dispositif de transfert comprend deux éléments de communication 11, 12 qui sont respectivement solidaires d'un organe 1, 2 et qui 10 sont disposés à distance de lecture l'un de l'autre. Dans le mode de réalisation représenté, les éléments de communication comprennent une bobine 11, 12, lesdites bobines étant couplées magnétiquement lorsqu'elles sont disposées à distance de lecture. En effet, de 15 façon connue, le couplage magnétique entre deux bobines 11, 12 permet de transmettre de l'énergie et/ou de l'information. La bobine 12 solidaire de l'organe tournant 2 est connectée à un ou des capteurs (non représenté) par l'intermédiaire d'une liaison filaire 13 de sorte à 20 transmettre de l'énergie au capteur et/ou les informations en provenance du capteur. De même, la bobine 11 solidaire de l'organe fixe 1 est connectée, par l'intermédiaire d'une liaison filaire 14, à une source d'énergie et/ou à un calculateur d'exploitation des informations. Par ailleurs, les éléments de communication, les capteurs et/ou le calculateur comprennent des moyens 25 permettant un traitement des informations qui soit adapté au transfert. En variante, on pourrait envisager d'autres types de connexion pour les bobines 11, 12 ou d'autres types d'éléments de communication pour le dispositif de transfert suivant l'invention. Par ailleurs, l'élément de communication solidaire 30 de l'organe tournant 2 pourrait intégrer le capteur. Le dispositif de transfert comprend deux armatures 15, 16 porte élément de communication, lesdites armatures étant respectivement solidaires de l'organe 2908713 5 fixe 1 et de l'organe tournant 2. Les armatures 15, 16, réalisées en tôle emboutie, comprennent chacune une portée axiale 15a, 16a d'association par emmanchement sur l'organe 1, 2 et une paroi radiale 15b, 16b sur laquelle l'élément de communication 11, 12 est associé.The assembly further comprises a non-contact energy and / or information transfer device between the fixed member 1 and the rotating member 2. This type of device makes it possible in particular to supply solidarity sensors with electricity. 2908713 4 wheel and / or make available information from said wheel. In particular, the information concerned may be the pressure of the tire, the forces experienced by the wheel and / or the rotating member 2, the speed of rotation, .... The sensors secured to the wheel are then arranged to be able to detect 5 respectively, and are arranged to allow this detection. To do this, the transfer device comprises two communication elements 11, 12 which are respectively integral with a member 1, 2 and which are arranged at a reading distance from one another. In the embodiment shown, the communication elements comprise a coil 11, 12, said coils being magnetically coupled when arranged at reading distance. In fact, in known manner, the magnetic coupling between two coils 11, 12 makes it possible to transmit energy and / or information. The coil 12 secured to the rotating member 2 is connected to one or more sensors (not shown) via a wire link 13 so as to transmit energy to the sensor and / or the information coming from the sensor. sensor. Similarly, the coil 11 secured to the fixed member 1 is connected, via a wire link 14, to a power source and / or an information exploitation computer. Furthermore, the communication elements, the sensors and / or the computer comprise means 25 for processing information that is adapted to the transfer. Alternatively, one could consider other types of connection for the coils 11, 12 or other types of communication elements for the transfer device according to the invention. Furthermore, the integral communication element 30 of the rotating member 2 could integrate the sensor. The transfer device comprises two armatures 15, 16 carries communication element, said armatures being respectively secured to the fixed member 1 and the rotating member 2. The armatures 15, 16, made of stamped sheet metal, each comprise a axial bearing 15a, 16a association by fitting on the body 1, 2 and a radial wall 15b, 16b on which the communication element 11, 12 is associated.
5 Les armatures 15, 16 portent en outre des joints d'étanchéité 17, 18 qui sont disposés de sorte à étanchéifier un côté de l'espace de roulement, notamment vis-à-vis des polluants qui pourraient s'introduire dans l'espace de roulement, mais également vis-à-vis d'éventuelles fuites du lubrifiant contenu dans ledit 10 espace de roulement. Dans le mode de réalisation représenté, les armatures 15, 16 sont disposées à l'avant de l'espace de roulement de sorte à étanchéifier ce côté. Plus précisément, le dispositif de transfert est disposé dans un logement annulaire 15 formé entre la bride 5 du moyeu 4 et l'extrémité avant de l'organe fixe 1, l'armature tournante 16 étant emmanchée sur une portée extérieure du moyeu 4 et l'armature fixe 15 étant emmanchée sur une portée extérieure de l'organe fixe 1.The reinforcements 15, 16 also carry seals 17, 18 which are arranged so as to seal one side of the running space, in particular with respect to pollutants which could enter the space rolling, but also vis-à-vis possible leakage of the lubricant contained in said 10 running space. In the embodiment shown, the armatures 15, 16 are arranged at the front of the running space so as to seal this side. More specifically, the transfer device is disposed in an annular housing 15 formed between the flange 5 of the hub 4 and the front end of the fixed member 1, the rotating armature 16 being fitted on an outer bearing surface of the hub 4 and the fixed armature 15 being fitted on an outer surface of the fixed member 1.
20 En particulier, le dispositif de transfert vient donc à la place d'un dispositif d'étanchéité classiquement utilisé dans ce type de montage. Concernant l'autre côté de l'espace de roulement, on peut prévoir un dispositif d'étanchéité classique (non représenté), ou un dispositif de transfert suivant l'invention.In particular, the transfer device therefore comes in the place of a sealing device conventionally used in this type of assembly. Regarding the other side of the running space, there may be provided a conventional sealing device (not shown), or a transfer device according to the invention.
25 Par ailleurs, les joints d'étanchéité 17, 18 forment un logement annulaire étanche entre les armatures 15, 16, les éléments de communication 11, 12 étant disposés dans ledit logement étanche. Ainsi, on satisfait aux contraintes de protection des éléments de communication vis-à-vis des polluants présents à l'interface entre l'organe tournant 2 et l'organe fixe 1.Furthermore, the seals 17, 18 form a sealed annular housing between the armatures 15, 16, the communication elements 11, 12 being arranged in said sealed housing. Thus, the protection constraints of the communication elements vis-à-vis the pollutants present at the interface between the rotating member 2 and the fixed member 1 are satisfied.
30 Dans le mode de réalisation représenté, la portée radiale 16b de l'armature tournante 16 comprend une paroi inférieure 16c sur la face arrière de laquelle la bobine tournante 12 est associée, et une paroi extérieure 16d sur laquelle le 2908713 6 joint d'étanchéité 18 est surmoulé. Par ailleurs, au niveau du raccordement entre les deux parois 16c, 16d, la portée radiale 16b comprend un orifice qui est agencé pour permettre le passage de la liaison filaire 13 depuis la face arrière de l'armature 16 vers sa face avant.In the embodiment shown, the radial bearing surface 16b of the rotating armature 16 comprises a bottom wall 16c on the rear face of which the rotating coil 12 is associated, and an outer wall 16d on which the gasket 2908713 6 18 is overmolded. Furthermore, at the connection between the two walls 16c, 16d, the radial span 16b comprises an orifice which is arranged to allow the passage of the wire link 13 from the rear face of the armature 16 towards its front face.
5 La bobine fixe 11 est disposée sur la face avant de la portée radiale 15b de l'armature fixe 15, et au voisinage de l'extrémité intérieure de ladite portée. Un orifice est également prévu sur la portée 15b pour permettre le passage de la liaison filaire 14 depuis la face avant de l'armature 15 vers sa face arrière. En 10 outre, la liaison filaire 14 étant interposée entre la face arrière de la portée 15b et la face avant de la zone sur laquelle l'armature 15 est emmanchée, le mode de réalisation représenté prévoit un orifice de passage de ladite liaison au travers de la portée axiale 15a.The fixed coil 11 is disposed on the front face of the radial span 15b of the fixed armature 15, and in the vicinity of the inner end of said span. An orifice is also provided on the bearing surface 15b to allow the passage of the wire connection 14 from the front face of the armature 15 towards its rear face. In addition, the wire connection 14 being interposed between the rear face of the bearing surface 15b and the front face of the zone on which the armature 15 is fitted, the embodiment shown provides a passage opening of said connection through the axial span 15a.
15 Par ailleurs, le joint d'étanchéité 17 est surmoulé au voisinage de l'extrémité intérieure de la portée radiale 15b. Dans cette réalisation, la bobine 11 peut être avantageusement associée à l'armature 15 par surmoulage dans le joint d'étanchéité 17. En variante, la bobine 11 peut être associée à l'armature 15 par tout autre moyen tel que le collage.Furthermore, the seal 17 is overmolded in the vicinity of the inner end of the radial bearing surface 15b. In this embodiment, the coil 11 may advantageously be associated with the reinforcement 15 by overmolding in the seal 17. Alternatively, the coil 11 may be associated with the armature 15 by any other means such as gluing.
20 Le joint d'étanchéité tournant 18 comprend deux lèvres 18a, 18b superposées qui s'étendent sensiblement axialement pour venir en contact frottant sur une zone de la portée axiale 15b qui est disposée à l'extérieur par rapport à la bobine fixe 11. De même, le joint d'étanchéité fixe 17 comprend une lèvre 17a 25 qui s'étend sensiblement radialement pour venir en contact frottant sur la portée axiale 16a de l'armature tournante 16. Ainsi, le logement annulaire étanche est formé entre ces lèvres 18a, 18b, 17a, la lèvre fixe 17a empêchant l'introduction de lubrifiant, et les lèvres tournantes 18a, 18b empêchant l'introduction des polluants extérieurs au montage dans ledit logement.The rotating seal 18 comprises two superimposed lips 18a, 18b which extend substantially axially to come into rubbing contact on an area of the axial bearing surface 15b which is disposed outwardly with respect to the fixed coil 11. even, the fixed seal 17 comprises a lip 17a 25 which extends substantially radially to come into frictional contact with the axial bearing surface 16a of the rotating armature 16. Thus, the sealed annular housing is formed between these lips 18a, 18b, 17a, the fixed lip 17a preventing the introduction of lubricant, and the rotating lips 18a, 18b preventing the introduction of pollutants external mounting in said housing.
30 Selon une réalisation, les joints d'étanchéité 17, 18 sont réalisés en matériau élastomère, par exemple en acrylonitrile ou analogue. En variante, lorsque le dispositif de transfert utilise des bobines 11, 12 couplées magnétiquement, on 2908713 7 peut prévoir que les joints d'étanchéité 17, 18 soient réalisés en matériau conducteur de flux magnétique. Par exemple on peut prévoir des joints 17, 18 réalisés en élastoferrite qui permettent de combiner les avantages d'une matrice élastomère relativement à l'étanchéité et des particules de ferrite 5 conductrices de flux magnétique qui sont enrobées dans ladite matrice.According to one embodiment, the seals 17, 18 are made of elastomeric material, for example acrylonitrile or the like. Alternatively, when the transfer device uses magnetically coupled coils 11, 12, it can be provided that the seals 17, 18 are made of magnetic flux conducting material. For example there may be provided seals 17, 18 made of elastoferrite that combine the advantages of an elastomeric matrix with respect to sealing and magnetic flux conducting ferrite particles 5 which are embedded in said matrix.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0610092A FR2908713B1 (en) | 2006-11-17 | 2006-11-17 | BEARING BEARING ASSEMBLY COMPRISING A NON-CONTACT ENERGY AND / OR INFORMATION TRANSFER DEVICE |
| DE102007054624A DE102007054624A1 (en) | 2006-11-17 | 2007-11-15 | Roller bearing assembly for connecting wheel with body of motor vehicle, has reinforcements carrying seals that are arranged in such manner that seals seal side of roller area and form sealed circular seat, in which coils are arranged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0610092A FR2908713B1 (en) | 2006-11-17 | 2006-11-17 | BEARING BEARING ASSEMBLY COMPRISING A NON-CONTACT ENERGY AND / OR INFORMATION TRANSFER DEVICE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2908713A1 true FR2908713A1 (en) | 2008-05-23 |
| FR2908713B1 FR2908713B1 (en) | 2009-02-13 |
Family
ID=38098590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0610092A Expired - Fee Related FR2908713B1 (en) | 2006-11-17 | 2006-11-17 | BEARING BEARING ASSEMBLY COMPRISING A NON-CONTACT ENERGY AND / OR INFORMATION TRANSFER DEVICE |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102007054624A1 (en) |
| FR (1) | FR2908713B1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0378939A1 (en) * | 1989-01-20 | 1990-07-25 | S.N.R. Roulements | Rotory seal with integrated magnetic coder, especially for rolling bearings with sensors |
| WO2003095240A2 (en) * | 2002-05-08 | 2003-11-20 | The Timken Company | Wheel end with rotation sensor |
| EP1722237A2 (en) * | 1999-06-02 | 2006-11-15 | JTEKT Corporation | Compact wheel speed detector capable of saving space and improving workability |
-
2006
- 2006-11-17 FR FR0610092A patent/FR2908713B1/en not_active Expired - Fee Related
-
2007
- 2007-11-15 DE DE102007054624A patent/DE102007054624A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0378939A1 (en) * | 1989-01-20 | 1990-07-25 | S.N.R. Roulements | Rotory seal with integrated magnetic coder, especially for rolling bearings with sensors |
| EP1722237A2 (en) * | 1999-06-02 | 2006-11-15 | JTEKT Corporation | Compact wheel speed detector capable of saving space and improving workability |
| WO2003095240A2 (en) * | 2002-05-08 | 2003-11-20 | The Timken Company | Wheel end with rotation sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2908713B1 (en) | 2009-02-13 |
| DE102007054624A1 (en) | 2008-05-21 |
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