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WO2011121382A1 - Procédé pour monter un ensemble roulement sur un élément support - Google Patents

Procédé pour monter un ensemble roulement sur un élément support Download PDF

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Publication number
WO2011121382A1
WO2011121382A1 PCT/IB2010/001273 IB2010001273W WO2011121382A1 WO 2011121382 A1 WO2011121382 A1 WO 2011121382A1 IB 2010001273 W IB2010001273 W IB 2010001273W WO 2011121382 A1 WO2011121382 A1 WO 2011121382A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling bearing
outer ring
target
cover member
process according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2010/001273
Other languages
English (en)
Inventor
Franck Landrieve
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKF AB filed Critical SKF AB
Priority to PCT/IB2010/001273 priority Critical patent/WO2011121382A1/fr
Publication of WO2011121382A1 publication Critical patent/WO2011121382A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • 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
    • 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
    • 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
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • 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
    • F16C2326/20—Land vehicles

Definitions

  • This invention relates to a process for mounting a rolling bearing assembly onto a support member, such as the hub of a wheel of a two-wheeled vehicle.
  • a rolling bearing assembly comprises an inner ring, an outer ring and several rolling bodies installed between these two rings. These rolling bodies can be balls, rollers or needles.
  • a rolling bearing can be, for instance, a ball bearing, a roller bearing or a needle bearing.
  • a tachometer in order to determine the rotation speed of a member supported by a rolling bearing.
  • a sensor assembly including an active part, such as a magnetic multipolar ring, forming a target whose rotation is detected by a sensor.
  • This active part is mounted on a synthetic support member fast in rotation with the outer ring of a ball bearing.
  • Such a device is globally satisfactory.
  • it is somehow cumbersome to mount onto a support member insofar as the sensor sub-assembly which includes the sensing unit and the active part is attached to the ball bearing prior to the mounting operation of the ball bearing on a support member.
  • This invention aims at solving the above-mentioned problem with a new process which facilitates the mounting of a rolling bearing assembly onto the support member.
  • the invention concerns a process for mounting a rolling bearing assembly onto a support member, said rolling bearing assembly comprising a rolling bearing having an inner ring and an outer ring, a target adapted to rotate with the outer ring around a rotation axis of the rolling bearing, a sensor unit including at least one sensing element adapted to read the target and a sealing gasket extending between a fixed part and a rotating part of said rolling bearing assembly.
  • this process comprises the steps of:
  • the rolling bearing assembly can be installed on a support member such as a hub with three successively applied axial efforts, which are easy and intuitive for an operator. Moreover, this mounting process increases the serviceability of the rolling bearing assembly insofar as access to the target and to sensing element remains easy after mounting of the rolling bearing assembly on its support member.
  • the words “axial”, “radial”, “axially”, “radially”, “centrifugal”, “centripetal” and similar words relate to the axis of rotation of the outer ring of the bearing with respect to its inner ring.
  • a direction is “axial” when it is parallel to this axis and “radial” when it is perpendicular and secant with this axis.
  • a surface is “axial” when it is perpendicular to this axis and “radial” when it surrounds this axis. For instance, an axial effort is parallel to the axis of rotation.
  • Step b) occurs before step c) or step c) occurs before step b).
  • step d) the cover member is directly mounted onto the outer ring.
  • the cover member can be immobilized onto the outer ring by press-fitting, gluing, clipping or screwing.
  • an annular skirt of the cover member can be introduced within a groove of the outer ring, thanks to the third axial effort.
  • the cover member is pushed into a second housing of the support member, with said third axial effort, and this cover member is blocked in rotation within this second housing.
  • the cover member can be blocked within the second housing by press-fitting or gluing.
  • the cover member and the target are selected in such a way that the inner diameter of the target is larger than the outer diameter of the outer ring.
  • step d) a sealing lip of the sealing gasket is brought into sliding contact with an outer annular radial surface of a part fast in rotation with the inner ring.
  • step a) the target is immobilized onto the cover member by press-fitting, gluing or clipping.
  • FIG. 1 is a perspective view of a hub and a fork of a two-wheeled vehicle, the hub including a rolling bearing assembly mounted onto this hub during the process of the invention;
  • figure 2 is a partial cross-section, at a larger scale and along plane II on figure 1 , showing a rolling bearing assembly used in the device of figure 1 ;
  • figure 3 is an enlarged view of detail III on figure 2;
  • FIG. 4 is an exploded perspective of the rolling bearing assembly represented on figures 2 and 3, showing how this assembly is mounted with respect to the shaft and hub shown on figures 1 to 3 which are partially represented in chain dotted lines;
  • figure 5 is a detailed view similar to figure 3 in case the process of the invention is used with a second embodiment of a rolling bearing assembly;
  • figure 6 is a perspective exploded view similar to figure 4 for the embodiment of figure 5;
  • figure 7 is a detailed view similar to figure 3 in case the process of the invention is used with a rolling bearing assembly according to a third embodiment of the invention.
  • figure 8 is a perspective view similar to figure 4 for the embodiment of figure 7.
  • Figure 1 depicts the use of a rolling bearing assembly 2 in conjunction with a shaft 4 and a hub 6.
  • the hub belongs to a non-represented wheel which is held by two fork members 8 supporting shaft 4.
  • the rolling bearing assembly 2 of the invention is used in conjunction with another rolling bearing assembly 3 in order to support, with a possibility of rotation, hub 6 around shaft 4 which is stationary when fork members 8 are stationary.
  • Rolling bearing assembly 2 includes a ball bearing 10 comprising an inner ring 102 and an outer ring 104 defining between them a rolling chamber where balls 106 are held in position by a cage 108.
  • Ring 102 is fast with shaft 4 and ring 104 is rotatable around a central axis Xi 0 of rolling bearing 10 which is superimposed with the central longitudinal axis X 4 of shaft 4 when rolling bearing 10 is mounted on shaft 4.
  • Rolling bearing assembly 2 also includes means to determine a rotation parameter of the outer ring 1 04 , with respect to the in ner ring 102.
  • a rotation parameter is representative of the pivoting movement of one part with respect to another.
  • Such a parameter can be an angle measuring the angular position of one part with respect to the other, around the central axis Xi 0 of ball bearing 10.
  • Such a parameter can also be a speed, a displacement, an acceleration or a vibration.
  • These detection means include a sensor unit 20 having a body 202 supporting a Hall effect cell 204 forming a sensing element.
  • An electric cable 205 connects cell 204 to an appropriate electronic control unit which is remote from rolling bearing assembly 2.
  • some electronic components can be embedded in body 202 in order to treat the output signal of cell 204.
  • Body 202 is mounted on an annular shoe or spacer 203 which also belongs to sensor unit 20.
  • Shoe 203 is fitted around shaft 4 and wedged onto inner ring 102 thanks to a skirt 2032 blocked in an inner peripheral groove or recess 1022 of inner ring 102.
  • body 202 is fast in rotation with inner ring 102.
  • a terminal nut 40 is mounted on shaft 4 and adapted to exert on shoe 203 an axial effort E 40 , that is an effort parallel to axis X 10 .
  • This axial effort is transmitted, as an effort E 30 , by shoe 203 to inner ring 102 which is in abutment against a spacer 42 extending between rolling bearing assemblies 2 and 3.
  • a metallic flange 50 is wedged on outer ring 104.
  • Flange 50 acts as a cover for an encoder washer 60 which constitutes a target for Hall effect cell 204.
  • Encoder washer 60 is magnetically active and includes several magnetic North and South poles regularly distributed around axis X 10 in working configuration of rolling assembly 2.
  • Encoder washer 60 is mounted on the radial inner face 502 of flange 50.
  • Sensing element 204 is arranged to detect encoder washer 60 in a radial direction.
  • Flange 50 is wedged onto outer ring 104. More precisely, an annular skirt 504 of flange 50 is introduced within an outer groove or recess 1042 of outer ring 104, so that items 50 and 104 are fast in rotation with each other.
  • fasten flange 50 onto outer ring 104 include gluing, force fitting and screwing.
  • Flange 50 works as a radial cover which shields encoder washer 60 against shocks and/or pollution.
  • encoder washer 60 is protected by flange 50 since encoder washer 60 is located radially inside flange 50.
  • a sealing gasket 70 is mounted on flange 50 and extends radially inwardly from flange 50 so that a sealing lip 72 of sealing gasket 70 comes in sliding contact with the outer radial surface 2062 of a ring 206 which is engaged around shoe 203 in order to hold body 202 in position with respect to this shoe.
  • encoder washer 60 is mounted onto radial inner face 502 of flange 50 and sealing gasket 70 is inserted within a radial inner groove 506 of flange 50.
  • Encoder washer 60 is held fast with respect to flange or cover 50 thanks to an elastic deformation of flange 50 which occurs when washer 60 is introduced within this flange.
  • encoder washer 60 can be immobilized onto flange 50 by gluing or clipping.
  • ball bearing 10 is introduced within a cylindrical housing 62 of hub 6 centered on axis X 4 , thanks to a first axial effort E-i exerted on the lateral surfaces 1024 and 1044 of rings 102 and 104 which are supposed to be oriented towards sensor unit 20 upon completion of the mounting operations.
  • This introduction of ball bearing 10 within housing 62 is easy since surfaces 1024 and 1044 are accessible.
  • sensor unit 20 is fastened to inner ring 102 by pushing this unit with a second axial effort E 2 exerted on an axial face 2034 of shoe 203 which faces away from rolling bearing 10.
  • This effort E 2 is applied in such a way that skirt 2032 penetrates within groove 1022. This operation is also easy insofar as surface 2034 is easily accessible.
  • sub-assembly 90 is mounted around sensor unit 20 thanks to a third axial effort E 3 exerted on a lateral face 508 of flange 50 wh ich faces away from rolling bearing 10.
  • flange 50 is introduced within housing 62 and fastened onto outer ring 104 by introduction of skirt 504 within groove 1042 up to when alignment of items 60 and 204, along axis X 10 , is obtained. Moreover, effort E 3 allows to bring sealing lip 72 into sliding contact with surface 2062.
  • the mounting process of rolling bearing assembly 2 is compatible with an easy dismounting of this assembly, insofar as the components of this assembly can be removed from housing 62 in an easy way.
  • a flange 50 has an outer diameter D 50 which is larger than the outer diameter D 104 of the outer ring 104 of a ball bearing 10.
  • hub 6 is provided with two respective housings 62 and 64 which are circular and concentric and whose respective internal diameters are equal to or slightly larger than diameters D 104 and D 50 .
  • flange 50 holds, surrounds and covers an encoder washer 60 and a sealing gasket 70 and constitutes with them a sub-assembly 90.
  • Item 60 is mounted on the radial inner face 502 of flange 50, as in the first embodiment.
  • Flange 50 can be blocked in rotation within housing 64 by different techniques, e.g. by press-fitting or gluing.
  • a flange 50 in the third embodiment of the invention represented on figures 7 and 8, includes a first cylindrical portion 501 having a circular cross-section and defining a radial inner face 502 on which encoder washer 60 is immobilized. Flange 50 also includes a second cylindrical portion or skirt 504 with a circular cross-section. The two portions 501 and 504 joined together by an annular portion 505 which is perpendicular to the central axis X-io of the ball bearing 10. Thanks to annular portion 505, cylindrical portions 501 and 504 can have different diameters.
  • Portion 504 is wedged onto outer ring 104 of ball bearing 10. More precisely, portion 504 is introduced within an outer groove 1042 of outer ring 104, so that items 50 and 104 are fast in rotation with each other.
  • the radial inner diameter d 6 o of encoder washer 60 is larger than the outer diameter D 104 of outer ring 104. This enables encoder washer 60 to be large enough to include a number of magnetic poles sufficient for a precise detection of its rotation by Hall effect 204, whereas rolling bearing 10 can be compact.
  • Rolling bearing assembly 2 is mounted within hub 6 by introducing ball bearing 10 within a housing 62 of hub 6 thanks to a first axial effort E-i , as in the first embodiment. Then, sensor unit 20 is fasten to ball bearing 10 thanks to a second axial effort E 2 , resulting in the introduction of an annular skirt 2022 of a shoe 202, fast in rotation with the body 202 of unit 20, within an annular groove 1022 of the rolling inner ring 102, as in the first embodiment.
  • a sub-assembly 90 previously built with flange 50, encoder washer 60 and a sealing gasket 70 mounted onto the radial inner face 502, is locked onto outer ring 104 by the introduction of cylindrical portion 504 within the space defined by groove 1042 around inner ring 104 inside housing 62. This is obtained thanks to an axial effort E 3 exerted on the edge of flange 50.
  • This mounting operation of flange 50 on outer ring 104 brings encoder washer in alignment, along axis X 10 , with cell 204 and a sealing lip 72 of gasket 70 in sliding contact with an outer peripheral surface 2022 of sensor unit body 202 and an outer peripheral surface 2032 of a shoe 203 fast in rotation with the inner ring 102 of ball bearing 10.
  • Surfaces 2022 and 2032 form together an annular surface.
  • a ring similar to ring 206 of the first and second embodiments can be used.
  • flange 50 can be immobilized onto outer ring 1 04 by different techniques, e.g. press-fitting, gluing, clipping or screwing.
  • fastening of sensor unit 20 to inner ring 102 can occur prior to the introduction of ball bearing 10 within hub 6.
  • the respective sizes of ball bearing 10 and housing 62 are such that, once it is introduced within housing 62, by effort E-i , ball bearing 10 is blocked in rotation with respect to hub 6.
  • sensor unit 20 may include more than one Hall effect cell 204.
  • the invention is particularly adapted for realizing a tachometer of a two-wheeled vehicle.
  • other applications can be considered.

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

L'invention concerne un procédé pour monter un ensemble roulement (2) sur un élément support (6), l'ensemble roulement comprenant un roulement (10) comportant une bague intérieure (102) et une bague extérieure (104), une cible (60) conçue pour tourner avec la bague extérieure autour d'un axe de rotation (X10) du roulement, une unité de capteur (20) comprenant au moins un élément de détection conçu pour lire la cible, et une garniture d'étanchéité (70) se déployant entre une partie fixe (206) et une partie rotative (50) de l'ensemble roulement. Le procédé comprend les étapes consistant à: a) monter la cible (60) et la garniture d'étanchéité (70) sur une face intérieure radiale d'un élément (50) de protection cylindrique ; b) pousser le roulement (10) dans un premier corps (62) de l'élément support (6) à l'aide d'un premier effort axial (E1) et bloquer la bague extérieure (104) en rotation dans ce premier corps ; c) fixer l'unité de capteur (20) à la bague intérieure (102) à l'aide d'un deuxième effort axial (E2) ; et d) fixer l'élément (50) de protection, pourvu de la cible (60) et de la garniture d'étanchéité (70), à la bague extérieure (104) à l'aide d'un troisième effort axial (E3).
PCT/IB2010/001273 2010-04-02 2010-04-02 Procédé pour monter un ensemble roulement sur un élément support Ceased WO2011121382A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2010/001273 WO2011121382A1 (fr) 2010-04-02 2010-04-02 Procédé pour monter un ensemble roulement sur un élément support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2010/001273 WO2011121382A1 (fr) 2010-04-02 2010-04-02 Procédé pour monter un ensemble roulement sur un élément support

Publications (1)

Publication Number Publication Date
WO2011121382A1 true WO2011121382A1 (fr) 2011-10-06

Family

ID=43478161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/001273 Ceased WO2011121382A1 (fr) 2010-04-02 2010-04-02 Procédé pour monter un ensemble roulement sur un élément support

Country Status (1)

Country Link
WO (1) WO2011121382A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822413A2 (fr) * 1996-07-30 1998-02-04 The Timken Company Capteur tachymétrique combiné avec roulement
JP2000356646A (ja) * 2000-01-01 2000-12-26 Nsk Ltd 回転速度検出装置付転がり軸受ユニット
EP1251354A1 (fr) 2001-04-18 2002-10-23 Aktiebolaget SKF Dispositif d'étanchéité pour palier à roulement instrumenté d'un capteur de vitesse de rotation
EP1696217A1 (fr) * 2005-02-28 2006-08-30 Aktiebolaget SKF Dispositif de galet tendeur de courroie instrumenté et procédé de contrôle associé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822413A2 (fr) * 1996-07-30 1998-02-04 The Timken Company Capteur tachymétrique combiné avec roulement
JP2000356646A (ja) * 2000-01-01 2000-12-26 Nsk Ltd 回転速度検出装置付転がり軸受ユニット
EP1251354A1 (fr) 2001-04-18 2002-10-23 Aktiebolaget SKF Dispositif d'étanchéité pour palier à roulement instrumenté d'un capteur de vitesse de rotation
EP1696217A1 (fr) * 2005-02-28 2006-08-30 Aktiebolaget SKF Dispositif de galet tendeur de courroie instrumenté et procédé de contrôle associé

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