EP1476760A2 - Palier a roulement equipe d'un capteur de vitesse de rotation - Google Patents
Palier a roulement equipe d'un capteur de vitesse de rotationInfo
- Publication number
- EP1476760A2 EP1476760A2 EP03718887A EP03718887A EP1476760A2 EP 1476760 A2 EP1476760 A2 EP 1476760A2 EP 03718887 A EP03718887 A EP 03718887A EP 03718887 A EP03718887 A EP 03718887A EP 1476760 A2 EP1476760 A2 EP 1476760A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- groove
- axial
- radial
- relative
- 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.)
- Withdrawn
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 37
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 230000003100 immobilizing effect Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 12
- 239000011324 bead Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 241000920340 Pion Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
- F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
Definitions
- the present invention relates to the field of instrumented rolling bearings fitted with a set for detecting rotation parameters, such as angular position, direction of rotation, speed, acceleration.
- the invention relates more particularly to an instrumented rolling bearing comprising a sensor secured to a non-rotating ring and an encoder secured to a rotating ring, the angular position of the sensor being indexed from a non-rotating element, so as to ability to know the angular position of the encoder relative to the fixed element.
- Such rolling bearings are used for example for driving electric motors of the synchronous type.
- the indexing of the sensor makes it possible to know in particular the speed of rotation and the position of the poles of the rotor relative to the poles of the stator.
- Document EP 1 037 051 discloses an instrumented rolling bearing device in which an encoder member is secured to a shaft, a sensor unit being secured to a rotating ring.
- the rotating ring is mounted in a bore of a fixed part so as to allow axial movement relative to the fixed part, washers exerting an axial force on the non-rotating ring to hold it in position.
- the sensor block is fitted onto the outer surface of the non-rotating ring.
- a device using on the one hand washers to exert an axial force on the non-rotating ring and on the other hand pins to angularly immobilize the sensor relative to the fixed part, is expensive and difficult to assemble. .
- the invention provides an instrumented rolling bearing device, comprising means for angularly immobilizing a non-rotating part of the device on a support while allowing relative axial movement of the device relative to the support, having a limited number of parts, and being able to be obtained at low cost.
- An instrumented rolling bearing device of the type comprising a non-rotating ring, a rotating ring, at least one row of rolling elements disposed between two raceways of the rotating and non-rotating rings and an information sensor assembly, comprises a non-rotating sensor block and a rotating encoder.
- the instrumented rolling bearing device comprises means for angularly immobilizing the sensor unit with respect to a support, while exerting an axial force between a bearing surface of the sensor unit and a surface of support support, and allowing relative axial movement of the sensor block relative to the support.
- the sensor unit remains angularly stationary relative to the support in a predefined relative angular position.
- the means for angularly immobilizing the sensor block on the support is axially prestressed between a bearing surface of the sensor block and a bearing surface of the support to exert an axial force between said bearing surfaces.
- the instrumented rolling bearing device can be maintained in an adequate angular position, while allowing, within a certain limit, a relative axial movement of the sensor unit relative to the support.
- the angular immobilization means also constitutes a means of angular indexing of the sensor block relative to the support.
- the angular indexing of the position of the sensor block relative to the support allows to know with precision the angular position of the sensor block relative to the support, which will not change thanks to the angular immobilization means.
- the angular immobilization means comprises at least one axially elastic tab, comprising a first end in axial support on the bearing surface of the sensor block, and a second end opposite to the first end and in axial support on a support surface of the support.
- the elastic deformation of the tab allowing the axial displacement of the sensor block relative to the support, is accompanied by the creation of axial force between the bearing surface of the sensor block and the bearing surface of the support.
- the angular immobilization means cooperates with at least one groove arranged on a bearing surface.
- a groove is radial
- the groove is arranged on the bearing surface of the sensor block.
- the groove is arranged on the support surface of the support.
- a tab comprises at least one end projecting into a groove arranged on a bearing surface. The protruding tab in a groove formed on a bearing surface allows a connection in rotation.
- a groove has an open profile, comprising a radial bottom surface and inclined edge surfaces.
- the tab cooperates with the inclined edge surfaces of the groove, so that the tab projecting into the radial groove is introduced into the groove until it is in simultaneous contact with the two inclined edge surfaces of the groove, so that there is no angular play between the sensor unit and the elastic tab.
- the tab is supported on inclined edge surfaces of the groove.
- the angular immobilization means comprises a plurality of axially elastic tabs.
- the legs are independent or linked together.
- the use of a plurality of legs makes it possible to distribute and balance the force exerted on a bearing surface.
- the force created between the bearing surfaces will be more or less important depending on the relative axial displacement of the bearing surfaces.
- the connection of the legs allows cooperation of the legs for the angular immobilization of the sensor unit relative to the support.
- the legs come from a crown secured to the support.
- the crown can be in contact directly on a bearing surface, by distributing an axial force over the whole of the bearing surface.
- the use of a crown also makes it possible to obtain the legs in a single assembly in order to facilitate assembly, which is done in a single operation for all of the legs.
- the tabs come from a crown secured to the sensor block.
- the ends of the legs opposite a crown are free.
- the instrumented rolling bearing device is adapted for use in an electric motor comprising a stator, a rotor, and a first rolling bearing device.
- FIG. 1 is an axial sectional view of an instrumented rolling bearing device
- FIG. 2 is a partial sectional view along LT - 13 of Figure 1;
- - Figure 3 is a perspective view of the instrumented rolling bearing device of Figure 1;
- FIG. 4 is an axial sectional view of a second embodiment of the instrumented rolling bearing device.
- the instrumented rolling bearing referenced 1 as a whole, is mounted on one end 2 of a non-rotating shaft 3.
- Said shaft 3 comprises a cylindrical axial portion 4 of outside diameter greater than the outside diameter of the end 2 of the shaft 3.
- a cylindrical seat 5 is formed between the end of the axial portion 4 and the end 2 of the shaft 3, and has an outside diameter smaller than the outside diameter of the axial portion 4 , while being greater than the outer diameter of the end 2.
- a radial bearing surface 7 extends between the cylindrical surface 5 and the outer surface 6 of the axial portion 4.
- a radial surface 8 extends between the surface cylindrical outer surface 9 of the end 2 of the shaft 3 and the cylindrical bearing surface 5.
- the cylindrical bearing surface 5 is provided on its outer surface with a thread.
- the bearing 1 comprises an inner ring 10 provided on its outer surface with a raceway 11, an outer ring 12 provided on its inner surface with a raceway 13, a row of rolling elements 14, here balls, disposed between the raceways 11 and 13 of the inner 10 and outer 12 rings, and held circumferentially spaced by a cage 15.
- the outer ring 12 comprises on its inner surface two annular grooves 16,
- Bearing 1 could include a plurality of rows of rolling elements, for example two. Furthermore, different rolling elements can be used, such as rollers or needles.
- the sealing member 18 seals the inner space of the bearing 1 lying radially between the inner 10 and outer 12 rings, against the intrusion of foreign bodies, or against lubricant leaks, such only grease, disposed in the bearing 1.
- a rotating element 19 comprises an axial portion 20 having a bore 20a in which is fitted the outer ring 12 of the bearing 1.
- An annular wall 21 extends radially inwards from from the end of the axial portion 20 of the rotating element 19, axially on the side opposite to the sealing member 18.
- the outer ring 12 of the bearing 1 comprises a front face coming into axial contact al on the annular wall 21 of the rotating element 19.
- the annular wall 21 of the rotating element 19 has an inner diameter greater than the diameter of the bore of the outer ring 2.
- a radial flank 22 extends radially outwards from the end of the axial portion 20 opposite the annular wall 21.
- the radial flank 22 is provided with circumferentially spaced holes 23 and intended to allow the fixing of the rotating element 19 on a member rotating relative to the shaft 3, a wheel for example.
- the rotating element 19 comprises an annular bead 24 extending axially from the zone of smallest diameter of the radial wall 23, and whose bore 24a extends the bore 20a of the axial wall 20.
- An annular groove 25 to rectangular profile is partially formed in the bore 24a by extending axially over the bore 20a.
- the annular wall 21 and the retaining member 26 axially hold the outer ring 12 of the bearing 1 in the bore 20a of the rotating element 19.
- the outer ring 12 is force fitted into the bore 20a of the rotating element 19, the outer ring 12 being integral in rotation with the rotating element 19.
- a detection assembly referenced 27 as a whole comprises an encoder ring 28 and a sensor block 29.
- the encoder ring 28 comprises an annular portion 30 located radially in part between the inner ring 10 and the outer ring 12 projecting axially from the interior space of the bearing 1.
- the annular portion 30 comprises an inner cylindrical bearing surface 31, axially on the side of its end adjacent to the rolling elements 14.
- the annular portion 30 is fitted on the interior surface of the outer ring 12.
- the annular portion 30 comprises an annular bead 32 projecting radially outwards, close to the axial end of the annular portion 30 on the side of the rolling elements 14.
- the annular bead 32 projects radially in the annular groove 16 of the outer ring 12, for angularly and axially securing the encoder 28 on the outer ring 12.
- the annular portion 30 extends axially beyond the annular wall 21 of the element turning 19.
- An active part of the encoder is located on a portion 33 of the outer surface 30a of the annular portion 30 adjacent to the axial end of the annular portion 30 opposite to. annular bead 32.
- the sensor unit 29 comprises an annular ring 34 disposed axially on the same side of the bearing 1 as the encoder 28.
- the annular ring 34 is provided with a bore 34a of diameter greater than the external surface 9 of the end 2 of the shaft 3, a radial bearing surface 34b oriented on the side of the axial portion 4 of the shaft 3, and a radial surface 34c axially opposite the radial bearing surface 34b.
- the radial surface 34c comes axially close to the annular wall 21 of the rotating element 19 by forming a narrow radial passage with the annular wall 21.
- An axial cup 35 projects axially from the zone of smallest diameter of the radial surface 34c of the annular ring 34, on the side of the bearing 1.
- the axial cup 35 comprises a radial end surface 35a coming to bear axially on a front wall of the inner ring 10.
- An annular rib 36 extends axially from the zone of larger diameter of the axial bounelet 35 and is fitted onto the outer surface of the inner ring 10.
- the annular ring 34 comprises on the radial surface 34c an annular groove 37 of rectangular section, radially adjacent to the axial bounelet 35.
- the annular portion 30 of the encoder 28 projects axially in the annular groove 37.
- the annular ring 34 comprises a detection member 38 flush with the edge surface 37a of larger diameter of the annular groove 37, radially opposite the active part of the encoder 28 located on the outer surface of the annular portion 30 of the encoder 28. If the active part is a succession of reflecting and non-reflecting parts, the detection member 38 is of the optical type. If the active part is a multipolar magnetic ring, the detection member 38 is of the magneto-sensitive type, for example a Hall effect cell. Other types of encoders and sensors could be envisaged.
- the air-tightness of the detection assembly 27, located radially between the external surface 30a of the annular portion 30 of the encoder 28 and the detection member 38, is ensured on the one hand by the narrow passage formed between the radial surface 34c of the annular ring 34 and the annular wall 21 of the rotating element 19, and on the other hand by the other narrow passage formed radially between the bounelet 35 and the annular portion 30 of the encoder 28.
- the intrusion of foreign bodies into the air gap of the detection assembly 27 could disturb the measurements carried out by said detection assembly 27.
- connection portion 39 protrudes radially from the annular ring 34.
- a wire 40 projecting radially outward from the connection portion 39 is connected in a manner not shown to the detection member 38.
- the radial bearing surface 34b of the annular crown 34 comprises five radial grooves 41, 42, 43, 44, 45, circumferentially regularly spaced.
- the radial groove 41 having an open profile section, includes a radial bottom surface 46, and inclined edge surfaces 47, 48.
- the groove 41 extends radially to the outer surface of the annular ring 34.
- the grooves 42, 43, 44, 45 are similar to the groove 41.
- An angular immobilization means 49 comprises a crown 50 centered on the bearing 5 of the shaft 3 coming to bear axially on the radial bearing surface 7 of the shaft 3.
- the immobilization means 49 comprises five legs 51, 52, 53, 54, 55 from crown 50.
- the tab 51 comprises a first end 51a connected to the periphery of the crown 50, a portion 51b extending obliquely, radially outward, in the direction of the radial bearing surface 34b of the annular crown 34, and a second free radial end 51c, opposite the first end 51a, and forming projection in the radial groove 41 of the radial bearing surface 34b of the annular ring 34.
- the free end 51c of the tab 51 projecting into the radial groove 41 has inclined surfaces forming a trapezoidal section to cooperate with the inclined edge surfaces 47, 48 of the radial groove 41.
- a nut 56 is screwed onto the thread of the bearing surface 5 of the shaft 3, and comes to block the crown 50 axially and angularly on the radial surface 7 of the shaft 3.
- the tabs 51, 52, 53, 54, 55 are therefore integral in rotation with the non-rotating shaft 3 serving as a support.
- Any suitable means can be envisaged for angularly indexing the angular immobilization means 49 relative to the non-rotating shaft 3 before the nut 56 is tightened.
- the sensor block 29 is angularly stationary relative to the shaft 3.
- each radial groove 41, 42, 43, 44, 45 until each comes to bear simultaneously on the two inclined edge surfaces of each radial groove 41, 42, 43, 44, 45.
- This simultaneous contact makes it possible to ensure that there is no angular clearance radially between the sensor unit 29 and the legs 51, 52, 53, 54, 55, as could be the case if the grooves and the legs had a rectangular section.
- the inclined edge surfaces like the edge surfaces 47, 48, make it possible to make up for the angular play.
- the angular position of the sensor block relative to the legs 51, 52, 53, 54, 55, is therefore precise.
- other sections of the grooves and lugs are adapted to produce the same effect of eliminating the angular play.
- the small thickness of the legs 51, 52, 53, 54, 55, the large length of the oblique portions and the elasticity of the material allow the axial deformation of the legs 51, 52, 53, 54, 55 so as to allow an axial displacement. relative to the sensor block 29 relative to the end 2 of the shaft 3, the axial contact between the free ends of the legs 51, 52, 53, 54, 55 and the grooves 41, 42, 43, 44, 45 being permanently maintained during the authorized relative axial movement of the sensor unit 29 relative to the shaft 3.
- the lugs 51, 52, 53, 54, 55 exert by elasticity an axial force on the radial bearing surface 34b of the sensor block, the crown 50 exerting an opposite axial force on the radial bearing surface 7 of the shaft 3.
- An axial displacement of the sensor block 29 towards the crown 50 causes an increase in the axial force exerted by the lugs 51, 52, 53, 54, 55.
- An axial displacement of the sensor block 29 on the side opposite to the crown 50 causes a reduction in the axial force exerted by the lugs 51, 52, 53, 54, 55.
- the sensor block 29 having a bounelet 35 provided with a radial surface
- the diameter of the bore 34a of the annular ring 34 being greater than the diameter of the outer surface 9 of the end 2, the sensor block 29 can move axially freely relative to the end 2 of the shaft 3.
- the block sensor 29, the annular rib 36 of which is fitted onto the outer surface of the inner ring 10, is integral with the inner ring 10.
- the inner ring 10 being mounted with a clearance of the "sliding-just" type on the outer surface 9 of the end 2 of the shaft 3, the ring 10 can have an axial movement relative to the end 2 of the shaft
- the legs 51, 52, 53, 54, 55 are adapted so that, when the mechanical assembly is in a normal rest position, the legs 51, 52, 53, 54, 55 exert an axial force on the surface radial support 34b.
- the axial force transmitted by the sensor unit 29 to the inner ring 10 makes it possible to exert a prestressing force on the bearing 1 disposed in a normal position of use.
- the lugs 51, 52, 53, 54, 55 can be dimensioned so that, whatever the axial position of the rolling bearing 1 on the end 2 of the axis 3 when using the bearing device rolling, the legs 51, 52, 53, 54, 55 exert an axial force on the radial bearing surface 34b. This ensures that the legs 51, 52,
- the length of the radial grooves 41, 42, 43, 44, 45 is adapted to allow the deformation of the legs 51, 52, 53, 54, 55.
- the legs 51, 52, 53, 54, 55 tend to deform by opening radially outward.
- the free ends of the legs 51, 52, 53, 54, 55, bearing in the grooves 41, 42, 43, 44, 45 then slide radially outward in the grooves 41, 42, 43, 44, 45.
- the grooves 41, 42, 43, 44, 45 extend to the outer surface of the annular ring 34, the sliding of the legs 51, 52, 53, 54, 55 is not hampered.
- the radial grooves 41, 42, 43, 44, 45 must extend radially inwards so as to allow the legs to slide. 51, 52, 53, 54, 55 which find a position of least deformation.
- the sensor block 29 is angularly oriented with respect to the fixing lugs 51, 52, 53, 54, 55.
- the crown 50 of the immobilization means 49 may itself include a means of indexing the crown 50 on the shaft 3, such as a lug protruding in an axial groove formed on the bearing 5 of the shaft 3.
- the angular position of the crown relative to the shaft 3 is precisely defined, so that the angular position of the block sensor 29 and therefore of the detection member 38 relative to the shaft 3 is also known with precision.
- the crown 50 can be secured to the shaft 3 by another means than the nut 56.
- the immobilization means 49 is adapted to be prestressed, the crown 50 is constantly subjected to a force which brings it closer to the radial surface 7.
- a bonding may suffice to fix the crown 50.
- the elastic deformation of the tab allows the introduction of the crown, until the tab is released in the annular groove and prevents reverse axial movement of the crown 50.
- legs 51, 52, 53, 54, 55 are circumferentially spaced unevenly, in order to easily determine the adequate and unique angular position of the sensor block 29 relative to the shaft 3. It is also possible to consider other means, such as coding or visual marks, to allow angular orientation of the sensor unit when mounting the rolling bearing device.
- angular immobilization means 49 makes it possible to immobilize and index the sensor block 29 angularly relative to the shaft 3, an accidental rotation of the inner ring 10 relative to the sensor block 29 will not cause angular movement of the sensor unit 29 relative to the shaft 3, thus not disturbing the position measurements carried out by the detection assembly 27.
- the angular immobilization means 49 comprises a crown 61 of large diameter disposed in an annular clearance 62 arranged on the radial surface 34b of the sensor block 29, said crown 61 being fixed to the sensor block by means of screws symbolized by dashed lines on Figure 4 for better clarity of the drawing.
- the lug 63 comprises a first end 63a connected to a zone of smaller diameter of the crown 61, a portion 63b extending obliquely, radially inwards, in the direction of the radial surface 7 of the shaft 3.
- the lug 63 comprises a second free radial end 63c, opposite the first end 63a, projecting into a radial groove 65 formed on the radial surface 7 of the shaft 3.
- Each leg of the angular immobilization means 49 is associated with a radial groove made on the radial surface 7.
- the dimensions of the radial groove 65 are adapted so as not to hinder the deformation of the tab 63 by allowing the radial sliding of the second end 63c of the tab 63 in the groove 65.
- the tabs have two ends: a free end projecting into a groove in a bearing surface and one end embedded in a crown fixed on an opposite bearing surface.
- the legs are not linked by a crown.
- Each tab is independent and has a free end projecting into a groove in a support surface and one end fixed to an opposite support surface. The end fixed to a bearing surface can also project into a groove provided on said bearing surface.
- the fixed end may be the end in contact with the support surface of the support, or the end in contact with the support surface of the sensor block. It is also possible to provide for the two ends of a tab to be fixed on the corresponding supporting surfaces, one end or both ends projecting into a groove, or no groove being provided. It is also possible to provide that the two ends of a tab are embedded in a crown fixed to the corresponding supporting surface.
- Angular immobilization means have been described comprising several legs. Of course, an angular immobilization means comprising a single tab pounait suitable.
- the instrumented rolling bearing device allows angularly immobilizing the sensor unit with respect to a support, while transmitting an axial force between a radial surface of the support and a radial surface of the sensor unit. It is thus possible to obtain an instrumented rolling bearing allowing relative axial displacement of the instrumented rolling bearing relative to the support. One can also obtain, with the same device, an angular indexing of the sensor unit with respect to the support.
- the instrumented rolling bearing device thus obtained having a limited number of parts, has a low manufacturing cost and can be mounted in a limited number of operations.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0202035 | 2002-02-18 | ||
FR0202035A FR2836191B1 (fr) | 2002-02-18 | 2002-02-18 | Palier a roulement instrumente |
PCT/FR2003/000510 WO2003071284A2 (fr) | 2002-02-18 | 2003-02-17 | Palier a roulement equipe d’un capteur de vitesse de rotation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1476760A2 true EP1476760A2 (fr) | 2004-11-17 |
Family
ID=27636276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03718887A Withdrawn EP1476760A2 (fr) | 2002-02-18 | 2003-02-17 | Palier a roulement equipe d'un capteur de vitesse de rotation |
Country Status (6)
Country | Link |
---|---|
US (1) | US7241052B2 (fr) |
EP (1) | EP1476760A2 (fr) |
AU (1) | AU2003222923A1 (fr) |
CA (1) | CA2475064A1 (fr) |
FR (1) | FR2836191B1 (fr) |
WO (1) | WO2003071284A2 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2917476B1 (fr) * | 2007-06-12 | 2010-02-26 | Skf Ab | Dispositif de roulement instrumente a indexation |
JP5304464B2 (ja) * | 2008-09-11 | 2013-10-02 | 株式会社安川電機 | エンコーダ付モータ |
DE102010013213A1 (de) * | 2010-03-29 | 2011-09-29 | Schaeffler Technologies Gmbh & Co. Kg | Lagerbaugruppe mit Lager |
KR101669592B1 (ko) * | 2010-08-31 | 2016-10-26 | 디지털옵틱스 코포레이션 | 카메라 모듈 |
CN202384919U (zh) * | 2011-12-29 | 2012-08-15 | 无锡尚格工业设计有限公司 | 一体容置式扭矩传感器电机 |
JP5920396B2 (ja) * | 2014-04-23 | 2016-05-18 | 日本精工株式会社 | ダイレクトドライブモータ、搬送装置、検査装置、及び、工作機械 |
GB201419214D0 (en) * | 2014-10-29 | 2014-12-10 | Rolls Royce Plc | Bearing apparatus |
FR3078405B1 (fr) * | 2018-02-26 | 2023-03-17 | Skf Ab | Unite de mesure de couple de friction sous charge, et banc d’essais pour dispositif tournant equipe d’une telle unite de mesure |
FR3107098B1 (fr) * | 2020-02-11 | 2022-11-04 | Ntn Snr Roulements | dispositif de palier à roulement instrumenté comprenant un porte-capteur monobloc intégrant un organe élastique de précharge axiale |
EP3975345A1 (fr) | 2020-09-25 | 2022-03-30 | Aptiv Technologies Limited | Ensemble connecteur avec module comprenant des moyens d'assurance de position de terminal |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2683315A1 (fr) * | 1991-11-05 | 1993-05-07 | Electricfil | Capteur d'une grandeur physique comportant un corps de support et de centrage des divers composants de mesure de la grandeur physique. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4309332A1 (de) * | 1993-03-17 | 1994-09-22 | Huebner Elektromasch Ag | Drehimpulsgeber |
DE19632715A1 (de) * | 1996-08-14 | 1998-02-19 | Fag Oem & Handel Ag | Wälzlagerung mit einer Drehzahlerfassungseinrichtung |
FR2791103B1 (fr) | 1999-03-17 | 2001-04-13 | Skf France | Palier a roulement instrumente |
-
2002
- 2002-02-18 FR FR0202035A patent/FR2836191B1/fr not_active Expired - Fee Related
-
2003
- 2003-02-17 US US10/503,813 patent/US7241052B2/en not_active Expired - Fee Related
- 2003-02-17 AU AU2003222923A patent/AU2003222923A1/en not_active Abandoned
- 2003-02-17 CA CA002475064A patent/CA2475064A1/fr not_active Abandoned
- 2003-02-17 EP EP03718887A patent/EP1476760A2/fr not_active Withdrawn
- 2003-02-17 WO PCT/FR2003/000510 patent/WO2003071284A2/fr not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2683315A1 (fr) * | 1991-11-05 | 1993-05-07 | Electricfil | Capteur d'une grandeur physique comportant un corps de support et de centrage des divers composants de mesure de la grandeur physique. |
Also Published As
Publication number | Publication date |
---|---|
WO2003071284A2 (fr) | 2003-08-28 |
AU2003222923A8 (en) | 2003-09-09 |
FR2836191A1 (fr) | 2003-08-22 |
AU2003222923A1 (en) | 2003-09-09 |
US7241052B2 (en) | 2007-07-10 |
CA2475064A1 (fr) | 2003-08-28 |
US20050218736A1 (en) | 2005-10-06 |
FR2836191B1 (fr) | 2004-07-09 |
WO2003071284A3 (fr) | 2004-03-25 |
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