FR2639412A1 - Rolling-contact bearing with a pulse-generating ring for antilock systems called ABS - Google Patents
Rolling-contact bearing with a pulse-generating ring for antilock systems called ABS Download PDFInfo
- Publication number
- FR2639412A1 FR2639412A1 FR8915259A FR8915259A FR2639412A1 FR 2639412 A1 FR2639412 A1 FR 2639412A1 FR 8915259 A FR8915259 A FR 8915259A FR 8915259 A FR8915259 A FR 8915259A FR 2639412 A1 FR2639412 A1 FR 2639412A1
- Authority
- FR
- France
- Prior art keywords
- ring
- pulse generator
- pulse
- rolling
- bearing
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
-
- 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
- F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
-
- 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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
-
- 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
Abstract
Description
ROULEMENT AVEC ANNEAU GENERATEUR D'IKPULSIOBS
POUR SYSTEXES ANTIBLOCAGE DITS ABS
L'invention concerne un roulement avec un anneau générateur d'impulsions, pour systèmes antiblocage dits ABS, rapporté sur la bague tournante.BEARING WITH IKPULSIOBS GENERATOR RING
FOR ANTI-LOCK SYSTEMS SAID ABS
The invention relates to a bearing with a pulse generator ring, for so-called ABS anti-lock systems, attached to the rotating ring.
Dans la plupart des cas, les roulements de ce type sont utilisés en tant que roulements de roue ou en tant qu'unité de palier de roue, dans des véhicules dotés d'une protection antiblocage intervenant automatiquement lors du freinage. L'nnneau générateur d'inpulsions est muni, sur sa partie collet, d'un assez grand nombre d'interruptions qui activent un capteur d'impulsions agencé à proximité en ne laissant subsister qu'un faible interstice.Pour obtenir des impulsions electriques ayant toutes le même niveau au cours d'un tour, il faut que l'interstice reste constant pendant la rotation du roulement Cet interstice doit être aussi faible que possible afin d'obtenir des impulsions de niveau suffisant, même aux très faibles vitesses du véhicule Il faut donc que l'anneau générateur d'impulsions et le capteur d'impulsions soient montés avec précision. In most cases, bearings of this type are used as wheel bearings or as a wheel bearing unit, in vehicles with an anti-lock protection that intervenes automatically when braking. The pulse generator is fitted on its collar with a fairly large number of interrupts which activate a pulse sensor arranged nearby, leaving only a small gap. all the same level during a revolution, the gap must remain constant during the rotation of the bearing This gap must be as small as possible in order to obtain pulses of sufficient level, even at very low vehicle speeds. The pulse generator ring and the pulse sensor must therefore be precisely mounted.
Dans le cas d'un roulement connu par le brevet allemand DE-OS 2 831 637, l'anneau générateur d'impulsions est simplement emboîte à la presse sur la surface d'épaulement de la bague de palier concerné. In the case of a bearing known by the German patent DE-OS 2 831 637, the pulse generator ring is simply fitted to the press on the shoulder surface of the bearing ring concerned.
Cette opération est habituellement exécutée par le fabricant du roulement. Lors du transport ultérieur, ou à l'occasion du montage exécuté chez le constructeur de véhicules, ou encore lors de travaux d'entretien ultérieurs du véhicule, l'anneau générateur d'impulsions peut être exposé à des charges dues à des chocs, de sorte que le positionnement initial précis ne peut plus etre garanti. Un anneau générateur d'impulsions déplacé, même légerement, hors de sa position remet en question le bon fonctionnement de l'ensemble du système antiblocage dit ABS.This is usually done by the bearing manufacturer. During subsequent transport, or during assembly carried out at the vehicle manufacturer, or during subsequent vehicle maintenance work, the pulse generator ring may be exposed to loads due to shocks, so that precise initial positioning can no longer be guaranteed. A pulse generator ring moved, even slightly, out of its position calls into question the proper functioning of the entire anti-lock system called ABS.
L'invention a pour but de réaliser un roulement avec anneau générateur d'impulsions pour systèmes ABS, du type indiqué au début, dans lequel il sera pratiquement exclu qu'après sa mise en place l'anneau générateur d'impulsions puisse se déplacer sous l'effet d'influences extérieures inintentionnelles. The object of the invention is to produce a bearing with a pulse generator ring for ABS systems, of the type indicated at the start, in which it will be practically excluded that after its installation the pulse generator ring can move under the effect of unintentional external influences.
Selon l'invention, ce but est atteint par le fait que l'anneau générateur d'impulsions fait en tôle est fixé par liaison mécanique positive au moyen de portions déformées. According to the invention, this object is achieved by the fact that the pulse generator ring made of sheet metal is fixed by positive mechanical connection by means of deformed portions.
la fixation par liaison mécanique positive a pour résultat que l'anneau générateur d'impulsions conserve Sa position précise, même s'il est exposé accidentellement å des chocs, coups, poussées ou analogues. L'absence de voilage, la constance de l'écartement par rapport au capteur d'impulsions, etc., sont donc assurés dans des limites préétablies. La probabilité d'occurrence d'une perturbation fonctionnelle, attribuable à l'assemblage ou å la mis en place après le montage du roulement, est donc extrêmement faible grace aux caractéristiques de l'invention. La fixation par liaison mécanique positive de l'anneau générateur d'impulsions sur la bague tournante concernée est réalisable à un faible coût. fixing by positive mechanical connection results in the pulse generator ring retaining its precise position, even if it is accidentally exposed to shocks, blows, thrusts or the like. The absence of warping, the constancy of the spacing in relation to the pulse sensor, etc., are therefore ensured within preset limits. The probability of occurrence of a functional disturbance, attributable to the assembly or to the installation after the mounting of the bearing, is therefore extremely low thanks to the characteristics of the invention. The fixing by positive mechanical connection of the pulse generator ring on the rotating ring concerned can be carried out at low cost.
Les caractéristiques et avantages de l'invention apparaitront plus complètement dans la description présentée dans ce qui suit, å titre d'exemple non limitatif, en se reportant aux dessins annexés dont les figures représentent
- la figure 1, une vue partielle en coupe longitudinale de la bague tournante, avec anneau générateur d'impulsions, d'un roulement pour système dit ABS, l'anneau étant fixé dans la région du bord, par liaison mécanique positive;
- la figure 2, l'agencement selon la figure 1, l'anneau générateur d'impulsions étant toutefois fixé par roulage;
- la figure 3, une vue partielle de dessus de la gorge annulaire moletée de la bague tournante selon la figure 1 ou la figure 2; et
- la figure 4, une vue partielle en coupe longitudinale d'une bague tournante, dans la région de la gorge annulaire avec des depressions à tracé axial.The characteristics and advantages of the invention will appear more fully in the description presented in the following, by way of nonlimiting example, with reference to the accompanying drawings, the figures of which represent
- Figure 1, a partial view in longitudinal section of the rotating ring, with pulse generator ring, of a bearing for said ABS system, the ring being fixed in the region of the edge, by positive mechanical connection;
- Figure 2, the arrangement according to Figure 1, the pulse generator ring being however fixed by rolling;
- Figure 3, a partial top view of the knurled annular groove of the rotating ring according to Figure 1 or Figure 2; and
- Figure 4, a partial view in longitudinal section of a rotating ring, in the region of the annular groove with depressions axially traced.
Les figures 1 et 2 montrent la région de l'épaulement 1 de la bague tournante 2 d'un roulement à billes avec un anneau générateur d'impulsions 3. FIGS. 1 and 2 show the region of the shoulder 1 of the rotating ring 2 of a ball bearing with a pulse generator ring 3.
Dans chaque cas, cet anneau est emboite à la presse, avec ajustement serré, sur l'épaulement 1, et positionné de nanière appropriée. Dans cette position, les anneaux générateurs d'impulsions 3 sont fixés axialement, par liaison mécanique positive, au moyen de portions 4 de la région en forme de manchon. In each case, this ring is fitted to the press, with a tight fit, on the shoulder 1, and positioned in the appropriate position. In this position, the pulse generator rings 3 are fixed axially, by positive mechanical connection, by means of portions 4 of the sleeve-shaped region.
Selon la figure 1, l'anneau générateur d'impulsions 3 présente à cet effet une gorge annulaire 6 à profil sensiblement en forme de V, aménagée dans l'épaulement. Des portions 4 de la partie en forme de manchon 5, réparties sur la circonférence, sont déformées radialement dans la gorge annulaire 6 et s'appliquent contre les flancs 7 de cellerci. En variante, l'ensemble du bord peut être rabattu. According to Figure 1, the pulse generator ring 3 has for this purpose an annular groove 6 with a substantially V-shaped profile, arranged in the shoulder. Portions 4 of the sleeve-shaped part 5, distributed over the circumference, are deformed radially in the annular groove 6 and are applied against the sides 7 of cellerci. Alternatively, the entire edge can be folded down.
Selon la figure 2, on a prévu une gorge annulaire 6 à profil en demi-cercle, dans laquelle la portion sensiblement médiane de la partie en forme de manchon 5 est déformée par roulage. According to Figure 2, there is provided an annular groove 6 with a semi-circular profile, in which the substantially middle portion of the sleeve-shaped part 5 is deformed by rolling.
Comme représenté sur la figure 3, l'une des deux arêtes entre les flancs 7 de la gorge et la surface 8 de l'épaulement de la bague tournante 2 est pourvue d'un moletage circonférentiel, comportant une pluralité de dépressions 9 dont le tracé est axial/radial. Entre celles-ci subsistent des pointes qui sont des restes de l'arête. Par déformation de la région marginale, comme sur la figure 1, ou par un roulage selon la figure 2, ces pointes résiduelles 10 s'enfoncent dans la matière de l'anneau générateur d'impulsions 3 et forment en outre une liaison nécanique positive en direction circonférentielle. As shown in FIG. 3, one of the two edges between the sides 7 of the groove and the surface 8 of the shoulder of the rotating ring 2 is provided with a circumferential knurling, comprising a plurality of depressions 9 whose outline is axial / radial. Between these remain points which are remnants of the ridge. By deformation of the marginal region, as in FIG. 1, or by a rolling according to FIG. 2, these residual points 10 sink into the material of the pulse generator ring 3 and also form a positive mechanical connection in circumferential direction.
Dans l'exécution selon la figure 4, on a prévu, à titre d'exemple, sur les arêtes entre les flancs de gorge 7 et la surface d'épaulement 8 de la bague tournante 2, par exemple cinq paires de dépressions 9 reparties sur le pourtour, inclinées axialement et légèrement radialement. Lors du roulage selon la figure 2, de la matière de l'anneau générateur d'impulsions est déformée dans les depressions 9, et l'on obtient également une liaison mécanique positive en direction circonférentielle. In the embodiment according to FIG. 4, provision has been made, for example, on the edges between the groove sides 7 and the shoulder surface 8 of the rotating ring 2, for example five pairs of depressions 9 distributed over the periphery, inclined axially and slightly radially. During rolling according to FIG. 2, the material of the pulse generator ring is deformed in the depressions 9, and a positive mechanical connection is also obtained in the circumferential direction.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8814620U DE8814620U1 (en) | 1988-11-24 | 1988-11-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2639412A1 true FR2639412A1 (en) | 1990-05-25 |
FR2639412B1 FR2639412B1 (en) | 1995-05-19 |
Family
ID=6830133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8915259A Expired - Fee Related FR2639412B1 (en) | 1988-11-24 | 1989-11-21 | BEARING WITH PULSE GENERATOR RING FOR SAID ABS ANTI-LOCK SYSTEMS |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE8814620U1 (en) |
FR (1) | FR2639412B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0694421A3 (en) * | 1994-07-30 | 1997-03-26 | Ford Werke Ag | Fixation of annular element of a hub element |
WO2001055731A1 (en) * | 2000-01-25 | 2001-08-02 | The Timken Company | Wheel mounting with axle-mounted sensor |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2690989B1 (en) * | 1992-05-11 | 1996-01-26 | Skf France | COMPOSITE ANNULAR ENCODER. |
JP3862302B2 (en) * | 1994-08-11 | 2006-12-27 | 日本精工株式会社 | Rolling bearing unit with rotational speed detector |
ITTO20020222A1 (en) * | 2002-03-14 | 2003-09-15 | Skf Ind Spa | SUPPORT SCREEN FOR PHONIC WHEEL. |
DE102008038788A1 (en) | 2008-08-13 | 2010-02-18 | Schaeffler Kg | Roller bearing arrangement for use in constant mesh transmission without mechanical synchronization of lorry, has drive shaft mounted opposite to drive housing above roller bearing and marking wheel attached on bearing ring |
DE202008018170U1 (en) | 2008-08-13 | 2012-01-26 | Schaeffler Technologies Gmbh & Co. Kg | Rolling bearing assembly with marking wheel |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2831637A1 (en) * | 1977-07-22 | 1979-02-01 | Ransome Hoffmann Pollard | MECHANICAL ARRANGEMENT, IN PARTICULAR BEARING ARRANGEMENT, WITH A SENSOR FOR DETECTING MOVEMENTS |
US4171495A (en) * | 1978-03-20 | 1979-10-16 | Eaton Corporation | Wheel speed sensor |
DE3703395A1 (en) * | 1987-02-05 | 1988-08-18 | Porsche Ag | Rotor of a wheel speed sensor for antilocking systems of motor vehicles |
-
1988
- 1988-11-24 DE DE8814620U patent/DE8814620U1/de not_active Expired
-
1989
- 1989-11-21 FR FR8915259A patent/FR2639412B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2831637A1 (en) * | 1977-07-22 | 1979-02-01 | Ransome Hoffmann Pollard | MECHANICAL ARRANGEMENT, IN PARTICULAR BEARING ARRANGEMENT, WITH A SENSOR FOR DETECTING MOVEMENTS |
US4171495A (en) * | 1978-03-20 | 1979-10-16 | Eaton Corporation | Wheel speed sensor |
DE3703395A1 (en) * | 1987-02-05 | 1988-08-18 | Porsche Ag | Rotor of a wheel speed sensor for antilocking systems of motor vehicles |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0694421A3 (en) * | 1994-07-30 | 1997-03-26 | Ford Werke Ag | Fixation of annular element of a hub element |
WO2001055731A1 (en) * | 2000-01-25 | 2001-08-02 | The Timken Company | Wheel mounting with axle-mounted sensor |
US6457869B1 (en) | 2000-01-25 | 2002-10-01 | The Timken Company | Wheel mounting with axle-mounted sensor |
Also Published As
Publication number | Publication date |
---|---|
DE8814620U1 (en) | 1989-01-12 |
FR2639412B1 (en) | 1995-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20060731 |