CN102893163B - For the instrumentation assembly of axle journal - Google Patents

For the instrumentation assembly of axle journal Download PDF

Info

Publication number
CN102893163B
CN102893163B CN201180021572.2A CN201180021572A CN102893163B CN 102893163 B CN102893163 B CN 102893163B CN 201180021572 A CN201180021572 A CN 201180021572A CN 102893163 B CN102893163 B CN 102893163B
Authority
CN
China
Prior art keywords
journal cap
journal
cap
ring
axially
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.)
Expired - Fee Related
Application number
CN201180021572.2A
Other languages
Chinese (zh)
Other versions
CN102893163A (en
Inventor
杰拉德·巴拉斯
詹姆斯·佩里拉特
塞巴斯蒂安·西尔菲斯特
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.)
NTN SNR Roulements SA
Original Assignee
NTN SNR Roulements SA
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 NTN SNR Roulements SA filed Critical NTN SNR Roulements SA
Publication of CN102893163A publication Critical patent/CN102893163A/en
Application granted granted Critical
Publication of CN102893163B publication Critical patent/CN102893163B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • 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
    • 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
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • 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
    • F16C2326/10—Railway vehicles
    • 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
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • 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
    • F16C35/063—Fixing them on the shaft

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

The present invention relates to a kind of instrumentation assembly for axle journal, comprise journal cap (26), magnetic encoder ring (36) and for axially blocking relative to journal cap (26) and/or the device of radially index magnetic encoder ring (36), this journal cap comprises the skirt portion (26.2) of bottom (26.1) and definition geometry reference axis (ZZ) being provided with at least one perforate (26.3), and skirt portion has relative with bottom this and forms the end (26.6) of axial support surface, this magnetic encoder ring (36) is directly or indirectly fixed to journal cap (26).Encoder ring (36) is preferentially axially arranged between the bottom of journal cap and end, is directly or indirectly pressed on the cylinder oblique crank Z of journal cap (26).

Description

For the instrumentation assembly of axle journal
The technology of the present invention field
The present invention relates to and there is the axle of instrumentation bearing or the field of axostylus axostyle.The large size bearing supporting high capacity is required.The instrument of this bearing is generally to be assembled on the fixed part of bearing by speed and/or temperature and/or vibration transducer; The moveable part of instrument is installed on another seat ring of bearing.
More accurately, the present invention relates to and have for the bearing of axostylus axostyle and the instrumentation assembly of journal cap and the lockplate for a kind of like this assembly.
Prior art
Be in the french patent application submitted with the name of the applicant of FR 0806050 in national registration number, describe a kind of instrumentation assembly with bearing for track axle journal, according to this invention, annular magnet scrambler is axially connected to the outside of bearing, on the sept of inner ring self being connected to the bearing be arranged on axle journal.Fixation of sensor is disposed in the opposite of magnetic encoder.One or more inflector assembly may protect the inside of bearing and scrambler from external contamination.Be arranged in opposed facing level at sensor and scrambler, this inflector assembly has at least one non-magnetic part.Inflector assembly of the prior art is very complicated and for will be completely specific by instrumented bearing.
Therefore, this solution is only applicable to the bearing of limited quantity.Due to an inflector assembly or multiple inflector assembly be add to become this instrument operation needed for existing part (sept, scrambler, sensor, etc.) in specific extra section, therefore very expensive.
It is in addition, a kind of like this that be intended to be installed to scrambler in journal cap before journal cap is mounted on axle journal himself is not protected.Therefore, occurred the impact of especially inducing by processing during journal cap stores and is assembled on axle journal, such as hammering, especially once journal cap is connected on axle journal to fold on head of screw by the flange of brake disc, then damage scrambler, scrambler is a kind of relatively frangible element.
The assembly of inside such as described in the national registration number french patent application that to be FR 0851217 submit with the name of the applicant that wherein scrambler is placed to bearing is also known; In this example, scrambler directly contacts with the railway grease appearing at Bearing inner; Scrambler also contacts with other pollution element with the particulate appearing at Bearing inner, aging more and more throughout bearing and scrambler self.
In addition, this assembly needs inflector assembly in some parts, so very complicated and expensive.Some part of inflector assembly has mechanical frangible region, because a large amount of mechanical loads is applied to bearing with in the part be associated, so which forms the problem considered in the application.
This assembly is very special and can not be assembled in the type of the bearing being different from initial design.Especially, can not be assembled on standard rolling bearing.
In addition, scrambler or detector are responsive in essence, and especially before they are placed in assembly, frangible part is not well protected.
Description of the invention
Target of the present invention is the defect overcoming prior art, and especially, target is the available protecting realizing the magnetic encoder comprised in assembly in simple and reliable mode.
In order to realize this goal, propose a kind of instrumentation assembly for axle journal according to a first aspect of the present invention, this instrumentation assembly comprises:
Journal cap, it comprises the skirt portion of bottom and the definition geometry reference axis being provided with at least one perforate, wherein skirt portion has relative with bottom and forms the end of axial support surface, and wherein journal cap has large external diameter (diametre ext é rieur) D 1, and
Magnetic encoder ring, it is connected to has diameter D 3stilt, this stilt is fixed relative to journal cap, cover, or magnetic encoder ring is connected to journal cap as to the axis of the skirt portion of journal cap or bottom, and has and be less than D 1and/or D 3outer diameter D 2.
Due to difference diametrically; between erecting stage, between the operating period and then journal cap and/or stilt protection encoder ring are from mechanical influence, and this protection runs through from start to finish, and it is lifelong: from storage in the pre-assembly, any possible dismounting, renovation with ressemble after a while.The solution of stilt is not had to provide the advantage of simplification, because the quantity of parts decreases.But the replacement scheme with stilt may be protected from impact preferably in some hypothesis.
Proposed solution is applicable to all types of bearing; Therefore, can repair or renovate many existing assemblies by replacing parts, and this is a kind of simple mode.
Preferentially, encoder ring by over-molded or be press-fitted in fixing stilt or journal cap, to provide the fixing of good quality.Over-molded solution provides the advantage preventing scrambler to be out of shape, and therefore provides the signal of good quality.Enjoyably, scrambler can be made up of elastoplasticity ferrite (é lasto-ferrite) or plasticity ferrite (plasto-ferrite), or is made up of the material doped with rare earth.
According to an embodiment, magnetic encoder ring is radially connected to the outside of the skirt portion of journal cap and is covered the skirt portion of journal cap at least in part.Therefore, the skirt portion of journal cap is not emitted and between the sensor of the outside of journal cap, is radially formed the danger of magnetic shielding at magnetic encoder ring with on the opposite of scrambler.
According to an embodiment of the invention, scrambler is pressed in the skirt portion of journal cap, or the skirt portion of distance journal cap is less than 0.5 millimeter and is preferentially less than the radial distance of 0.2 millimeter, by this way, make use of the mirror effect caused by journal cap, contribute to like this by the sensor placed with certain air gap distance to read magnetic encoder.
According to an embodiment of the invention, this assembly also comprises the guard cover of encoder ring, and this guard cover comprises the protection skirt portion covering encoder ring.The skirt portion of coverture is made up of nonmagnetic substance, not to be on the permanent staff yard device ring and on the opposite of this ring and radially form shielding between the sensor of the outside of this ring and coverture.This coverture can comprise the bottom be pressed between the journal cap of bearing and inner ring.The skirt portion of coverture can comprise folding getting back in journal cap coverture to be locked to the end of journal cap.This coverture provides protection encoder ring and is not only immune, also from the advantage of multi-form pollution.Coverture can be adapted to, and by this way, is defined for the annular volume holding scrambler ring seal together with journal cap and/or stilt.
Encoder ring can be connected to stilt radially inwardly and the surface relative with journal cap.
Alternatively, scrambler can be directly connected in journal cap; It advantageously can be press-fitted into journal cap.Encoder ring can be connected in the annular groove of the skirt portion of journal cap especially, and this groove is radially opened towards the outside.This arrangement provides the Additional Protection be immune.Annular groove can have the cross section of swallowtail shape, and encoder ring has the shape to the complementation of optimal mechanical resistance.
The skirt portion of journal cap can comprise at least one index undulation portion (relief d ' indexation), cooperates to lock this ring rotatably relative to journal cap to the corresponding undulation portion of encoder ring.
According to another embodiment of the present invention, encoder ring can be connected on the radially wall inwardly of the skirt portion of journal cap.Encoder ring can also be connected on stilt on the inwall opposite of the skirt portion of journal cap.In this hypothesis, journal cap is made up of nonmagnetic substance.
Stilt can be axially pressed between the journal cap of bearing and inner ring.
According to another aspect of the present invention, the present invention relates to instrumentation assembly, this instrumentation assembly comprises:
Axle journal, which defines symmetrical turning axle,
At least one inner ring, it is installed on axle journal,
Journal cap, it axially extends to the outside of inner ring, and journal cap comprises the bottom that is provided with at least one perforate and is provided with the skirt portion axially directly or being indirectly pressed in the end on inner ring, and journal cap has larger outer diameter D 1, and
Magnetic encoder ring, it is connected to journal cap, or is connected to stilt, and this stilt is fixed relative to journal cap, and axially in the outside of inner ring, the axis as the skirt portion to journal cap covers, and magnetic encoder ring has and is less than D 1outer diameter D 2.
According to another aspect of the present invention, the present invention relates to the instrumentation assembly for axle journal, this instrumentation assembly comprises:
Journal cap, it comprises the skirt portion of the bottom that is provided with at least one perforate and definition geometry reference axis, and wherein skirt portion has relative with bottom and forms the end of axle supporting surface,
Magnetic encoder ring, it is directly or indirectly connected to journal cap, and
For axially blocking relative to journal cap and/or the device of radially index magnetic encoder ring.
Then the instrumentation assembly formed like this can be installed on axle journal.
Advantageously, encoder ring can axially between the bottom and end of journal cap.Then encoder ring can be radially pressed on the cylinder oblique crank Z of journal cap directly or indirectly.
Encoder ring can be axially pressed on the axial annular shoulder of journal cap directly or indirectly, then which constitutes the whole or a part of of the device for axially blocking.
Encoder ring can be connected in the toroidal support that is connected with journal cap.Alternative according to different:
Stilt can be axially pressed on the shoulder of journal cap and the folding of journal cap is got back between the edge on stilt;
Stilt can be deformed, to enter the recess of journal cap;
Recess can have radially opening towards the outside or towards becoming the axially open relative with the end of journal cap, and this recess can be annular;
Stilt is axially pressed on the shoulder of journal cap.
According to an embodiment, comprise ring protection coverture for the device axially blocked, this ring protection coverture is defined for the enclosed volume holding encoder ring together with journal cap.This coverture can be combined or be crimped onto in journal cap especially.During life cycle during memory phase before being assembled on axle journal and after assembling, encoder ring is protected equally especially very well.
According to another aspect of the present invention, the present invention relates to for such as previously described instrumentation assembled, to the method on axle journal, is comprised the following steps:
Assembling instrumentation assembly, the in the form sub-component that intercouples of mechanical Shangdi,
The sub-component that mechanical Shangdi intercouples to be assembled on axle journal and to carry out fastening by extend through the medium of at least one screw rod in the hole of the bottom of journal cap.
During being assembled to the step on axle journal, the scrambler as the ingredient of the instrumentation assembly be pre-assembled in the sub-component that intercouples is protected to be immune.
Accompanying drawing is sketched
When describing below reading with reference to accompanying drawing, other feature, details and advantage of the present invention will be revealed, and illustrated therein is:
Fig. 1 is the longitudinal cross-section being provided with the track axle journal of the instrumentation assembly with bearing according to the first embodiment of the present invention;
Fig. 2 is the thin portion of the instrumentation assembly of axle journal in Fig. 1;
Fig. 3 to Figure 24 is alternate embodiments.
In order to more clear, on whole accompanying drawing, mark identical or similar element by identical reference symbol.
The detailed description of embodiment
Fig. 1 shows the axle journal 10 of track vehicle, and it is installed to the inside of axle box 12 rotatably by the medium of bearing 14, and bearing 14 comprises at least one inner ring 16A, at least one outer ring 18 and rotary body 20A, 20B.Here, below be not that the description of this invention is restrictive, bearing has two row's rotary bodies, and rotary body 20A, 20B are made up of tapered roller, these rollers rotate and rotate on two inner rings 16A, 16B on the outer ring 18 with two paths for rotating, and two inner ring 16A, 16B each arrange roller 20A, 20B and separated by sept 22.
The turning axle ZZ of axle journal constitutes the reference axis for this equipment.Inner ring 16A, 16B are press fit on the cylinder oblique crank Z 10.1 of axle journal.Sept 24 can be inserted between the shoulder 10.2 of inner ring 16A, 16B and axle journal 10.In order to axially keep this assembly, have bottom 26.1 and the journal cap 26 of skirt portion 26.2 are connected to axle journal 10 free end 10.3 by the medium of stationary installation, screw 28 extends through the hole 26.3 that is machined in the bottom 26.1 of journal cap 26 and is screwed into threaded hole 10.4 at end 10.3 place of axle journal 10 here.One or more sept 30 can be inserted into free end 26.6 and between inner ring 16A, 16B of bearing of the skirt portion of journal cap.Dimension chain is made so that during gib screw 28 is screwed into pre-locking assembly moment of torsion, and by the medium of sept 22,24,30, journal cap 26 starts axially inner ring 16A, 16B of bearing to be promoted on the direction of shoulder 10.2, if the latter exists.
Outer ring 18 is installed in the cylindrical housings 12.1 of axle box 12, is closed by the lid 12.2 covering journal cap 26.
Inner ring 16A, 16B and outer ring 18 between which defined volume 14.1 for rotary body, this volume is the volume that sealing system 32A, the 32B formed by being limited between which by inflector assembly in the present embodiment axially closes, not contact, there is no the loss of load or baffle plate, limit pollutant and infiltrate bearing and lubricant outflow.Also distinguish passage 34 in FIG, made may make with lubricator to recharge bearing termly.
This assembly is provided with by being the encoder ring 36 of one with rotating part and being the kit that sensor 38 is integrally formed with fixed part, be i.e. axle box housing.In significant mode, this group instrument shaft to ground between the axial end of the lid of the outside of bearing and bearing and axle box.
Scrambler 36 comprises magnet ring, and this magnet ring has along the multiple north and south poles of its circumference continuous print.Sensor 38 is positioned at a certain distance from encoder ring and at the opposite place of encoder ring, by this way, read during the rotation of axle journal by north and south poles by the change on the electromagnetic field that causes.This group instrument provide at least axle rotating speed data equally, can add other the information of locating to the angle of such as axle or the axial displacement of axle is relevant to this axle rotating speed data.
Can find out more accurately from Fig. 2, scrambler 36 is connected in the toroidal support 40 of the exterior cylindrical oblique crank Z 26.4 of the skirt portion 26.2 being press-fitted into journal cap in radial recess, and this radial recess is axially limited by the shoulder 26.5 of journal cap in side and limits at the shoulder 40.1 of opposite side by this toroidal support.In the significant mode of one, the larger outer diameter D on shoulder 26.5 of journal cap 1be greater than the outer diameter D of encoder ring 2.Similarly, the larger outer diameter D of the toroidal support 40 shoulder 40.1 measured 3be greater than the outer diameter D of encoder ring 2.Coverture 42 comprises the cylindrical skirt portion 42.1 of the low thickness be made up of nonmagnetic substance, and this coverture 42 covers toroidal support 40 and scrambler 36 and closes the recess placing scrambler 36.The free end 26.6 of the skirt portion of journal cap forms planar annular surface.Toroidal support 40 has bottom 40.2, and the annular flat contacted by the opposite on the transverse plane surface 26.6 of the skirt portion in journal cap and with the transverse plane surface 26.6 of the skirt portion of journal cap bottom this is faced the wall and meditated and formed.Similarly, coverture comprises the bottom 42.2 be made up of the plane annular wall realizing the bottom 40.2 covering toroidal support.
In fig. 2, the instrumentation sub-component be made up of journal cap 26, toroidal support 40, scrambler 36 and coverture 42 was illustrated before being assembled on axle journal.In the significant mode of one, the free end of the skirt portion 42.1 of coverture is press fit on journal cap 26 or stilt 40, and by this way, this sub-component is mechanically intercoupled.Therefore, it can be processed as a whole, does not damage the risk of scrambler 36.
Be assembled to period on axle journal 10, coverture 42 and toroidal support 40 are pressed between the planar end surface 26.6 of the skirt portion of axle cap and sept 30, forbid any relative motion after a while of these parts, even when judder.
According to the alternative in Fig. 3, toroidal support 40 also instead of coverture.In order to realize this, this toroidal support comprises skirt portion 40.3, and skirt portion 40.3 has the part of the cylinder oblique crank Z 26.4 being press-fitted into journal cap and has the second end section of less thickness.In fact the guard space closed similarly is limited to the cylinder oblique crank Z 26.4 of journal cap; and between the shoulder 40.1 of the end portion of the skirt portion 40.3 of toroidal support 40, the shoulder 26.5 of journal cap and stilt, between these two parts, form joint.In this enclosure space, arrange encoder ring 36, such as, this encoder ring 36 is by over-molded and be fixed in toroidal support.
According to the alternative in Fig. 4, by elastoplasticity Ferrite Material or plasticity Ferrite Material or doped with the ceramic mould magnetic material of rare earth, (NdFeB (neodymium iron boron) or SaCo) encoder ring 36 made are over molded on cup 40A made of stamped steel, and cup 40A self is press fit in the toroidal support 40 of the toroidal support be similar in Fig. 2.Cup 40A is axially pressed between the shoulder 26.5 of journal cap and the skirt portion 40.3 of toroidal support.In order to the unit that form intercouples, the coverture 42 be made up of nonmagnetic substance is press fit into toroidal support and the end 42.3 of its skirt portion 42.1 is crimped onto in journal cap.To be assembled on axle journal 10 period at this sub-component, axial force is sent to inner ring 16A, 16B of bearing by the medium of the shoulder 26.5 of journal cap, annular cup thing 40A, toroidal support 40, coverture 42 and sept 30 from screw 28.
According to unshowned alternative, the end of the skirt portion 42.1 of the coverture 42 in Fig. 2 can also limit according to the mode similar with the implementation in Fig. 4.
Alternative in Fig. 5 directly derives from the alternative in Fig. 3, wherein only in the difference in shape of toroidal support 40, wherein skirt portion 40.3 is press fit in the larger diameter of journal cap 26, fully to close the annular volume of the housing of encoder ring 36.
According to the alternative in Fig. 6, encoder ring 36 is connected to toroidal support 40 and is received into the inside of the skirt portion 26.2 of journal cap, in this example, encoder ring 36 by least local nonmagnetic material make, with can not form to measure shielding.
Alternate embodiments shown in Fig. 7-10 can be different from previous alternative, because encoder ring 36 is directly connected in journal cap 26.
According to the alternative in Fig. 7, encoder ring 36 is accommodated in radially opening towards the outside of journal cap and in the annular groove 26.7 axially limited by two shoulders.Similarly, by reducing the quantity of parts as far as possible, realize the satisfied protection that scrambler during processing is immune.
But in order to improve this protection, at least part of nonmagnetic coverture 42 can be added skirt portion 42.1, this skirt portion 42.1 to be press fit in journal cap and fully to have closed the groove 26.7 of the housing of encoder ring, as shown in Figure 8.In order to connect this coverture in a position-stable manner during being assembled on axle journal, being arranged to skirt portion and being extended by the planar wall 42.2 be pressed in the position assembled between journal cap and bearing.
According to the alternative in Fig. 9, the outside surface 26.4 scrambler 36 being connected to skirt portion can also be arranged to, the outside surface 26.4 of skirt portion can have groove 26.8 or various undulation portion, and encoder ring 36 is over molded on it, improves fixing by this way.In this open-and-shut alternative, by the larger diameter D of journal cap 26 forming shoulder 26.5 1part provide the protection of scrambler and this diameter necessarily must be greater than the diameter D of encoder ring 2.But in order to be configured for the closure casing of encoder ring, can provide coverture 42, illustrating in Fig. 10, the 26S Proteasome Structure and Function of this coverture is similar to the 26S Proteasome Structure and Function of the alternative in Fig. 7.
Embodiment in Figure 11 forms another alternative in Fig. 7 and possibly embodiment in fig. 8, distinguishing characteristics is annular groove 26.7, it is the cross section of swallowtail shape, and encoder ring 36 has corresponding shape, is fixed in groove 26.7 to improve encoder ring 36.The combined shaped of groove 26.7 and encoder ring 36 can provide axial obstruction in the rotation of encoder ring relative to journal cap 26.The quantity of the parts in present embodiment is reduced especially, still provides the good protection of encoder ring in the instrumentation sub-component stage be assemblied on axle journal be made up of the journal cap being provided with its scrambler simultaneously.Under usable condition, non magnetic coverture can be used for covering encoder ring.Should be understood that, groove 26.7 is preferentially formed in the thickness of the bottom 26.1 of journal cap instead of is formed in skirt portion 26.2, will mechanically make journal cap die down by this way, and under usable condition, not hinder passing through of the electric current between the rotating part at axle box and fixed part that transmitted by journal cap.
Figure 12 and Figure 13 shows the instrumentation assembly with bearing for axle and journal cap according to another embodiment of the present invention.Axle journal 10 installs bearing, and this bearing comprises inner ring 16A, rotary body 20A and outer ring 18.In order to isolate and limit the inner space 14.1 of bearing, multiple inflector assembly 32A or other sealing system can be provided.Here, the first inflector assembly 321A be connected to fixing outer ring 18 simultaneously the second inflector assembly 322A be connected to temperature of inner ring during rotation 16A.
Journal cap 26 is provided, and is arranged on the end of axle journal 10.Journal cap 26 is axially pressed on inner ring 16A by the medium of the second inflector assembly 322A indirectly, and the second inflector assembly 322A is axially inserted proximally between journal cap 26 and inner ring 16A.By at least one screw 28, such as, hex-head screw is utilized to extend through the hole 26.3 of formation in the smooth bottom 26.1 of the journal cap 26 of the end covering axle journal 10 to realize journal cap 26 to fixing on axle journal 10.
Lockplate 50 is provided especially and in known manner to lock attachment screw or screw 28 rotatably.In order to realize this function, lockplate 50 comprise be provided with for one or more attachment screw 28 the aperture 50.2 passed through and there is the end plate 50.1 of center cutout 50.3 of flange 50.4, flange 50.4 can be folded on a head of screw or multiple head of screw 28, to stop unclamping of any screw 28.
According to the present invention, lockplate 50 also to comprise on the end being intended to be installed in journal cap 26 and covers whole or a part of skirt portion 50.5 of its outer cylindrical wall more accurately.The end section 50.6 of skirt portion 50.5 is intended to be press fit into the cylinder oblique crank Z 26.11 on the outer wall being formed in journal cap 26, as can be as seen from Figure 12.The cylindrical volume closed similarly is formed between the cylindrical surface 26.4 of skirt portion 50.5 and journal cap 26, and is radially positioned to retract relative to cylinder oblique crank Z 26.11 and be axially positioned between the axle head of axle 26.11 and journal cap 26.
That cover skirt portion 50.5 by annular magnet scrambler 36 with surface that the is opposite, surface 26.4 of journal cap, this annular magnet scrambler can be such as connected thereon by over-molded.Here lockplate 50 or at least skirt portion 50.5 by such as there is aluminium base, copper base or the stainless steel-based nonmagnetic substance of some type is formed.
This layout advantageously makes protection magnetic encoder 36 become possibility, and magnetic encoder 36 is arranged in enclosed volume, and this enclosed volume is radially between journal cap 26 and lockplate 50.
The alternate embodiments of aforementioned embodiments has been shown in Figure 14.Current scrambler 36 is press fit into the outer wall of journal cap 26 near the axle head of journal cap 26, and is covered by the non magnetic skirt portion 50.5 of lockplate 50.
According to another alternate embodiments shown in Figure 15, scrambler 36 can be fully connected cup 36.1, and this cup 36.1 is arranged in the volume limited by the skirt portion 50.5 of lockplate 50 and journal cap 26.Cup 36.1 self comprises the cylindrical skirt portion 36.2 supporting scrambler 36 and the bottom 36.3 be axially pressed between the bottom 50.1 of lockplate 50 and journal cap 26.The bottom 36.3 of cup is advantageously passed by gib screw or screw 28, and gib screw or screw 28 provide the machinery of cup 36.1 and scrambler 36 to keep, and have in time very good reliability, even when very large vibration.
In aforementioned embodiments in Figure 12 to Figure 15, the skirt portion 50.5 of lockplate 50 and bottom 50.1 are all the single parts that the parts be made up of nonmagnetic substance are formed.But according to the alternate embodiments in Figure 16, can consider to provide skirt portion 50.5, this skirt portion 50.5 is added on the bottom 50.1 of lockplate 50.Then lockplate 50 can be provided with the index undulation portion 50.7 of the Angle Position of skirt portion 50.5.Structure on two parts to provide bottom optimization and the selection of material of skirt portion with the advantage making it be applicable to its function separately.In this hypothesis, especially, the bottom 50.1 of lockplate needs not to be nonmagnetic substance.According to the assembly substituted, the skirt portion 50.5 being provided with scrambler was pre-assembled on bottom 50.1 before being assembled in journal cap 26 by lockplate 50.Alternatively, skirt portion 50.5 can be pre-assembled in journal cap 26, and installs lockplate at second step.
Figure 17 to Figure 19 shows the different views of another embodiment according to axle box of the present invention.To the description of mutual component with reference to aforementioned embodiments, mutual component has identical reference number.This embodiment is different from aforementioned embodiments, and difference is to there is a kind of specific stilt 40 for regular coding device 36, and it is shown in greater detail in Figure 18, and there is a kind of current collector 60 for realizing recirculation loop.The stilt 40 of scrambler 36 by with there is one or more flange 40.4 and the cylindrical skirt portion 40.3 that the bottom 40.2 be provided with for the through hole 40.5 of gib screw 28 is one is formed, bottom 40.1 also has at least one opening 40.6, and in the exemplary embodiment illustrated, the quantity of opening 40.6 equals the quantity of flange 40.4, separates flange 40.4.
Scrambler 36 is over molded on the radially surface towards the outside of skirt portion 40.3.The entirety be made up of stilt 40 and scrambler 36 is press fit into the cylinder oblique crank Z 26.4 of journal cap, between the axle head and the shoulder 26.5 of centre of the bottom 26.1 of journal cap.Cylinder oblique crank Z 26.4 is preferentially formed in the thickness of bottom 26.1 of journal cap, by this way, skirt portion 26.2 mechanically can not be made to die down and under usable condition, do not hinder electric current passing through between slewing and the housing 12.1 of axle box 12.
The ring protection coverture 42 that the metal sheet be made up of nonmagnetic substance is formed is crimped onto in journal cap, by this way, utilizes the stilt 40 of journal cap 26 and scrambler to be defined for the annular space closed of scrambler 36.In remarkable mode in the present embodiment, the larger diameter D of scrambler 2be less than the larger diameter D measured on shoulder of journal cap 1, and be less than the larger diameter D of guard cover 3'.
Thered is provided the location of the stilt of scrambler 36 by gib screw 28 and fix, under usable condition, gib screw 28 side by side can also provide journal cap 26 fixing to axle journal 10.This is fixed along with the time ensure that good mechanical resistance, even under the rugged surroundings being subjected to judder.Under usable condition, the stilt 40 of scrambler can also be configured for the lockplate of gib screw, and then it allows pendle 40.7 to attempt folded getting back on the head of gib screw.
And back flow plate 60.1 is connected to journal cap 26 by the medium of given screw 60.2.This screw 60.2 is arranged on one of the opening 40.6 of the stilt 40 of scrambler, and by this way, back flow plate 60.1 directly contacts with journal cap 26.In an exemplary embodiment, screw 60.2 indirectly penetrates axle journal 10 and does not form gib screw journal cap 26 being fixed to axle journal 10.But, in a not shown embodiment, can consider to use of journal cap 26 to be fixed in the gib screw 28 of axle journal 10, with similarly fixed head 60.1.Current collector 60 with the lid 12.2 of axle box be one brush 60.3 start this plate of sliding contact, this plate is parts of the slewing being one with axle, to be configured for the electrical path that electric current circulates between track and the electrical equipment of the vehicles.
Embodiment in Figure 20 to Figure 23 shows different alternative, and from impact and vibration position, it is intended to ensure the mechanical resistance of scrambler 36 in rugged surroundings in long-time section.
According to the alternative shown in Figure 20, scrambler 36 is by over-molded or be press-fitted into stilt 40, and stilt 40 self is press fit on the cylinder oblique crank Z 26.4 limited by end shoulder 26.5 of journal cap 26.Then by turning back towards the curling edge 26.9 by journal cap of stilt 40, by this way, the stilt 40 of scrambler is axially fettered by shoulder 26.5 and flap 26.9 on either side.The stilt 40 of scrambler self comprises shoulder 40.1, the maximum dimension D of shoulder 40.1 3be greater than the outer diameter D of scrambler 2, provide a kind of protection similarly to the scrambler in assembling stage.Such as can improve this protection by the curling coverture 42 being connected to stilt by providing alternatively, and one end of this coverture is compacted by the curling flap of journal cap, and the maximum dimension D of coverture 3' be also greater than D 2.
According to the alternative in Figure 21, the stilt 40 of scrambler 36 is axially pressed on the end shoulder 26.5 of journal cap, the material of the sheet metal of this stilt is just in time out of shape in the annular groove 26.12 of journal cap simultaneously, by this way, axially stops about by combining to set up.Can also provide extra guard cover 42 in this alternative, and coverture 42 and stilt 40 are side by side combined during the same operation using thumb wheel.According to an alternative, the material of sheet metal can be out of shape partly in other than ring type groove 26.12, to be formed axially and radial stopping.
According to the alternative in Figure 22, the stilt 40 of scrambler is provided with pendle 40.8, and pendle 40.8 is folded to be got back in the ring shaped axial groove 26.10 formed in journal cap, stops with the axis providing support thing 40.Can also provide extra guard cover 42 in this alternative, and this coverture and stilt are got back in groove 26.10 by side by side folding.According to alternative, groove 26.10 can not be annular, by this way, forms and is axially connected with radial direction.
According to the alternative in Figure 23, journal cap is provided with cylinder oblique crank Z 26.4, and this cylinder oblique crank Z 26.4 is axially opened in the side of the end 26.6 on bearing 14 opposite and limited by shoulder 26.5 in the side of the bottom 26.1 of journal cap.The stilt 40 of scrambler is bonded on this cylinder oblique crank Z 26.4 of journal cap, axially retracts relative to the end 26.6 of journal cap.Axially stop and rotating stopping in conjunction with providing.Coverture 42 can also be provided.Although the stilt 40 of encoder ring 36 is positioned at away from sept 30 a distance, the space after assembly between these parts is very low, limits the axial displacement of scrambler to move axially in rugged surroundings.
Embodiment in Figure 24 relates to the situation that scrambler 36 is connected to the cylinder shape inner wall relative with sept 30 of the skirt portion 26.2 of journal cap 26, and sept 30 realizes directly being pressed on inner ring 16A or by inserting inflector assembly 32A and is pressed on inner ring 16A.Be necessary that skirt portion 26.2 is made up of nonmagnetic substance in the configuration, by this way, the signal of read-out encoder can be carried out by the sensor of the outside being radially positioned at skirt portion 26.2.Sept is advantageously made up of magnetic material, to contribute to the mirror effect of the magnification of the electromagnetic signal detected by sensor.Assembling scrambler 36 after but before being assembled on axle journal by this sub-component, it is favourable for being press-fitted into by sept 30 in journal cap 26, by this way, during assembling stage, protect scrambler 36.
The many alternative not departing from scope of the present invention are possible.Stilt can be provided for the encoder ring lacking bottom especially.In this case, and because do not compress stilt between journal cap and an inner ring or multiple inner ring being assembled on axle journal period, so the pressure that must provide support thing relative to journal cap is fixed.Identical words are applied on coverture.
Sept need not be inserted into bearing an inner ring or between multiple inner ring and journal cap.If there is a kind of stilt for encoder ring or coverture, the latter can also provide the function of sept.
Finally, the technical characteristic of different embodiment can be combined, to realize other alternative.

Claims (12)

1., for an instrumentation assembly for axle journal, comprising:
-journal cap (26), it has diameter D1, and comprise the skirt portion (26.2) of bottom (26.1) and definition geometry reference axis (ZZ) being provided with at least one perforate (26.3), described skirt portion has relative with described bottom and forms the end (26.6) of axial support surface
-magnetic encoder ring (36), it has diameter D2, and is directly or indirectly connected to described journal cap (26),
It is characterized in that, described instrumentation assembly also comprises for axially blocking relative to described journal cap (26) or the device of radially magnetic encoder ring (36) described in index, the device of described axially obstruction or radially index comprises ring protection cover, described ring protection cover is crimped onto the housing described journal cap being also defined for together with described journal cap the enclosed volume of described encoder ring, described encoder ring (36) is made by elastoplasticity ferrite or plasticity ferrite or is made up of the material doped with rare earth, and described diameter D2 is less than described diameter D1.
2. instrumentation assembly according to claim 1, is characterized in that, described encoder ring (36) is axially between the described bottom and described end of described journal cap.
3. instrumentation assembly according to claim 2, is characterized in that, described encoder ring (36) is directly or indirectly pressed on the cylinder oblique crank Z of described journal cap (26).
4. instrumentation assembly according to claim 1, is characterized in that, described encoder ring (36) is by over-molded or be firmly installed in described journal cap (26).
5. instrumentation assembly according to claim 1, is characterized in that, described encoder ring (36) is directly or indirectly axially pressed on the axial annular shoulder of described journal cap (26).
6. instrumentation assembly according to claim 1, is characterized in that, described encoder ring (36) is connected to the toroidal support be connected with described journal cap.
7. instrumentation assembly according to claim 6, is characterized in that, above support is axially pressed between the shoulder of described journal cap and the folding edge got back on above support of described journal cap.
8. assembly according to claim 6, is characterized in that, above support is deformed, to enter the recess of described journal cap.
9. assembly according to claim 8, is characterized in that, described recess has radially opening towards the outside.
10. assembly according to claim 8, is characterized in that, described recess have with the described end of described journal cap relatively towards axially open.
Assembly described in any one in 11. according to Claim 8 to 10, is characterized in that, described recess is annular.
12. instrumentation assemblies according to claim 1, is characterized in that, described instrumentation assembly also comprises:
-axle journal (10),
-at least one inner ring (16A), it is installed on described axle journal, described journal cap (26) axially extends to the outside of described inner ring (16A), axially be pressed on described inner ring (16A) directly or indirectly, wherein said encoder ring (36) is axially positioned at the outside of described inner ring (16A).
CN201180021572.2A 2010-04-30 2011-04-29 For the instrumentation assembly of axle journal Expired - Fee Related CN102893163B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1001870A FR2959541B1 (en) 2010-04-30 2010-04-30 INSTRUMENTAL ASSEMBLY FOR AXLE ROCKER
FR1001870 2010-04-30
PCT/FR2011/000266 WO2011135209A2 (en) 2010-04-30 2011-04-29 Instrumented assembly for an axle journal

Publications (2)

Publication Number Publication Date
CN102893163A CN102893163A (en) 2013-01-23
CN102893163B true CN102893163B (en) 2015-08-19

Family

ID=43302432

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180021572.2A Expired - Fee Related CN102893163B (en) 2010-04-30 2011-04-29 For the instrumentation assembly of axle journal

Country Status (6)

Country Link
EP (1) EP2564208A2 (en)
KR (1) KR20130098868A (en)
CN (1) CN102893163B (en)
FR (1) FR2959541B1 (en)
RU (1) RU2012151276A (en)
WO (1) WO2011135209A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20130625A1 (en) * 2013-07-23 2015-01-24 Skf Ab TEMPERATURE MEASURING SYSTEM FOR A ROLLING BEARING IN A RAILWAY BUSH AND ASSOCIATED METHOD
CN106936238A (en) * 2015-12-30 2017-07-07 博世汽车部件(长沙)有限公司 Magnet ring and the motor with it
WO2017138651A1 (en) * 2016-02-10 2017-08-17 株式会社国際電気通信基礎技術研究所 Rotational structure, assist system, and robot
IT201600119368A1 (en) * 2016-11-28 2018-05-28 Skf Ab SOUND WHEEL FOR HUB-WHEEL GROUP
IT201700083818A1 (en) * 2017-07-24 2019-01-24 Skf Ab SOUND WHEEL FOR HUB-WHEEL GROUP

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161962A (en) * 1996-09-13 2000-12-19 The Timken Company Bearing with sensor module
EP1211500A1 (en) * 2000-12-01 2002-06-05 Nsk Ltd Rolling bearing apparatus with sensor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR806050A (en) 1936-04-21 1936-12-05 Process and press for compression work
US2244751A (en) 1938-03-10 1941-06-10 Fides Gmbh Method and arrangement for testing amplifiers
DE9214980U1 (en) * 1992-11-04 1992-12-24 Skf Gmbh, 97421 Schweinfurt Rolling bearings with impulse ring for ABS systems
DE4427098C1 (en) * 1994-07-30 1996-01-18 Ford Werke Ag Mounting arrangement for a sensor ring on a hub part
ITTO20020222A1 (en) * 2002-03-14 2003-09-15 Skf Ind Spa SUPPORT SCREEN FOR PHONIC WHEEL.
ITTO20030886A1 (en) * 2003-11-07 2005-05-08 Skf Ab BEARING GROUP FOR RAILWAYS.
ITTO20050624A1 (en) * 2005-09-14 2007-03-15 Rft Spa INTEGRATED UNIT WITH AN ENCODER AND A HOLD FOR A ROLLING BEARING.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161962A (en) * 1996-09-13 2000-12-19 The Timken Company Bearing with sensor module
EP1211500A1 (en) * 2000-12-01 2002-06-05 Nsk Ltd Rolling bearing apparatus with sensor

Also Published As

Publication number Publication date
RU2012151276A (en) 2014-06-10
CN102893163A (en) 2013-01-23
EP2564208A2 (en) 2013-03-06
FR2959541B1 (en) 2012-08-31
WO2011135209A3 (en) 2011-12-29
KR20130098868A (en) 2013-09-05
WO2011135209A2 (en) 2011-11-03
FR2959541A1 (en) 2011-11-04

Similar Documents

Publication Publication Date Title
CN102893162B (en) Instrumented assembly and associated locking plate
CN102893163B (en) For the instrumentation assembly of axle journal
US6997615B2 (en) Rolling bearing apparatus
RU2472046C2 (en) Bearing seal
US6892587B2 (en) Rotation detecting device and wheel support bearing assembly utilizing the same
US6559633B1 (en) Speed sensor with a seal
CN100392269C (en) Rolling bearing for a wheel of vehicle and a semi-float type bearing apparatus having it
CN105605095A (en) Rolling bearing unit with encoder for supporting wheel
CN101772693A (en) Rotary sensor unit
JP2004270872A (en) Bearing for wheel
EP1596201A2 (en) Magnetic encoder and wheel support bearing assembly utilizing the same
EP2541088A1 (en) Ball bearing equipped with encoder for detecting rotational speed of wheel of two-wheeled motor vehicle, and device for detecting rotational speed of wheel of two-wheeled motor vehicle, the device using the ball bearing
JP4278324B2 (en) Wheel bearing
JP4286063B2 (en) Bearing device with built-in rotation speed sensor
CN102884436A (en) Instrumented assembly for an axle journal, and assembly method
JP2004037441A (en) Magnetic encoder and wheel bearing using it
KR101404787B1 (en) Encoder protection cap and wheel bearing sealing structur having the same
CN111937282A (en) Motor with integrated encoder
JP2002333035A (en) Combined seal ring with encoder
JP4781644B2 (en) Wheel bearing device
JP2006170624A (en) Bearing with wireless sensor
JP2008094243A (en) Bearing device for wheel
JP2005140334A (en) Bearing with magnetic encoder
CN110799767A (en) Rolling bearing unit for wheel support
JP4312149B2 (en) Bearing with magnetic encoder and wheel bearing

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150819

Termination date: 20160429