WO2004057276A1 - センサ付き転がり軸受ユニット - Google Patents
センサ付き転がり軸受ユニット Download PDFInfo
- Publication number
- WO2004057276A1 WO2004057276A1 PCT/JP2003/016390 JP0316390W WO2004057276A1 WO 2004057276 A1 WO2004057276 A1 WO 2004057276A1 JP 0316390 W JP0316390 W JP 0316390W WO 2004057276 A1 WO2004057276 A1 WO 2004057276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- rolling bearing
- fixed
- sensor
- bearing unit
- Prior art date
Links
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/007—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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
-
- 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
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
- G01D5/2086—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by movement of two or more coils with respect to two or more other coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
-
- 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
Definitions
- the present invention relates to a rolling bearing unit with a sensor used in an automobile ABS or the like.
- rolling bearings are used to support the rotating shaft that transmits rotation to the axle, and to detect rotation such as the rotation speed and rotation angle of the shaft.
- a rolling bearing unit with a sensor equipped with a sensor device and a pulsar ring to be detected is used.
- the resolution depends on the number of magnetized poles of the pulsar ring when using a saling for which there is an increasing demand for improved resolution and smaller diameter for rotation detection.
- it is necessary to increase the number of poles.
- this causes a problem that the magnetic flux density decreases, the absolute value of the signal output of the sensor device decreases, and the rotation cannot be measured accurately.
- Patent Document 1 Japanese Utility Model Application Laid-Open No. 6-47867 discloses a plurality of projections as a rolling bearing unit with a sensor using a detected part instead of a pulsar ring. Patent Document 1 discloses that a detection portion is positioned so as to be sandwiched between protrusions of a member to be detected formed in an abbreviation, thereby improving a detection output of a rotation speed.
- Patent Document 2 Japanese Unexamined Patent Application Publication No. No.
- the detected part is attached to the bearing fixing nut V outside.
- patent document 1 has a problem in that the load of the detected member is troublesome, and in patent document 2 it does not. There is a problem that it cannot be applied to bearing devices that do not have
- the purpose of the present invention is to use a high-resolution resolver and reduce its cost, thereby providing a low-cost, high-resolution sensor-equipped rolling bearing unit.
- the present invention bearing Interview two Tsu Bok Ri is sensor-equipped rolling by has a rolling force s Ri bearing having an outer ring member and the inner ring member, and a Rezorupa you detect the rotation of the shaft, the outer ring member Contact Yopi inner ring member
- a stator is provided on either side of the head, and a stator is provided on the other side of the BJ, and a detection surface serving as a mouthpiece of the resonator is added to the position of the other member facing the stator.
- machining means that a member to be a rotor is Is not integrated into the inner ring member by press-fitting, etc., but is cut into the inner peripheral portion of the outer ring member that has a raceway groove on the inner periphery or the outer peripheral portion of the inner transfer member that has a raceway groove outside. This means that one detection surface is formed.
- a resolver stator is provided on one of the forces of the outer ring member and the inner ring member, and the position of the other member opposite the stator is provided. Since the surface to be detected, which is the mouthpiece of the laser, is added, no new members for the motor are required, and the force and rolling bearings are used to convert the resole into a knockout. This makes it possible to obtain a high-resolution, high-resolution sensor-equipped rolling bearing unit with a low load.
- the outer ring or inner ring member on which the surface to be processed, which is to be formed in the family, is formed by, for example,
- the sensor-equipped rolling bearing unit according to the present invention has a structure in which, for example, an outer ring is fixed to a housing or the like, and a rotating shaft or the like is fixed to the jing portion, so that the rotating shaft can be supported and its rotating state can be detected.
- the (reactable reactance) type resonoreno is preferred.
- the stator of the Resonoreno is, for example, a stator coil formed by sequentially winding a coil force s around a toothed iron core having an inner diameter formed in a comb shape and all teeth. Consists of a line and. The stator is fixed by being pressed into the shoulder of the outer ring member with the iron core part with the teeth tips facing inward in the radial direction.
- the mouth of the resonator is formed, for example, by adding a stator-facing portion of the inner ring member to the stator, and the shape of the detection surface is an eccentric cylindrical surface, that is, an inner ring. It is a cylindrical surface that is eccentric with the other outer peripheral surface of the member (the inner peripheral surface of the outer ring member and the cylindrical surface of the center).
- the eccentric cylindrical surface can be easily and often obtained by, for example, eccentrically adding the turning tool axis to the axis of the internal transfer member.
- the surface to be detected by the ⁇ -axis can be in various forms as long as it is a surface with a very small cylindrical surface force, and a notch is provided in the cylindrical surface around the axis of the ball bearing. May be considered.
- the notch may be one or more than one.
- the notched cylindrical surface such as a ray o which does not need to be equally spaced in the direction is formed, for example, by forming an outer ring member or an inner ring member as in the past. Then, for example, in the same manner as adding a keyway, the inner circumference or outer circumference is axially displaced.
- the notch is not limited to a groove, but may be, for example, one that forms a flat portion on a part of the circumference.
- the rolling bearing is a single row, it is preferable to arrange the stator at one end of the bearing, and when the rolling bearing is a double row, one end of the bearing is preferable.
- a stator may be arranged in the section, but if necessary, a stator may be arranged in the middle of the two rows of rolling elements.
- the inner ring member has a flange portion for mounting the wheel, and the inner ring member has a flange portion for mounting the wheel.
- the outer race member may be a fixed-side race member that has a mounting portion to the vehicle body side and may be a fixed-side race member that is mounted to the vehicle body.
- the bearing unit is used as a hapunit in the vehicle.o
- the large-diameter portion having the first raceway groove has a first raceway groove.
- a shaft portion having a small diameter portion having an outer diameter smaller than the diameter of the raceway groove, and a ring portion having a second raceway groove and desired by the small diameter portion of the shaft portion may be.
- the stator is the shoulder of the ring part of the rotating raceway member.
- the target detection surface is formed on the outer peripheral surface of the shoulder portion of the ring portion, so that it can be reduced to 5.
- the straight line of the stator or the connector is fixed to the fixed-side raceway member. Since the work such as passing through the hole by hand is not required, it can be taken out from the end of the knub unit, and moreover, it is only necessary to press the stator into the knob unit without the sensor device.
- the axis of the turning tool is decentered with respect to the center axis of the inner side of the y-shape and the X is added. And can be obtained easily and frequently
- the sensor device is provided with a processing circuit for processing a signal output in accordance with the amount of gap between the stator and the surface to be detected of the mouth, that is, the outer peripheral surface of the shoulder of the ring.
- the circuit is
- a rotation detector that calculates the required angle and rotation speed for ABS, etc.
- a car Iffl ground load calculator that calculates the ground load applied to the wheels from the amount of gap between the stator and the one O preferred to have
- the grounding load applied to each tire changes with the change in speed and posture of the running vehicle.-The amount of displacement of the axle with respect to the vehicle body changes depending on the magnitude of the grounding load in # 11 .
- the displacement of the axle corresponds to the position of the rotating-side track member with respect to the fixed-side track member in the notebook, that is, the gap amount between the stator and the motor. Therefore, the relationship between the ground contact load of the tire and the displacement of the rotating-side track member is determined in advance, and the gap between the stator and the mouth is measured with a resorno.
- the grounding load can be obtained from the grounding load-displacement relational expression and the gap amount.
- FIG. 1 is a cross-sectional view showing a first embodiment of a rolling bearing unit with a sensor according to the present invention.
- FIG. 2 is a sectional view taken along the line II-II of FIG.
- FIG. 3 is a cross-sectional view showing a second embodiment of a rolling bearing sut with a sensor according to the present invention.
- FIG. 4 is a sectional view taken along the line IV-IV in FIG.
- FIG. 5 is a cross-sectional view showing a third embodiment of a rolling bearing unit with a sensor according to the present invention.
- FIG. 6 is a sectional view taken along the line VI-VI in FIG.
- FIG. 7 is a cross-sectional view showing a fourth embodiment of a rolling bearing kit with a sensor according to the present invention.
- FIG. 8 is a sectional view taken along the line VIII-VIII of FIG.
- Fig. 9 is an enlarged view of Fig. 8 showing the details of the mounting part of the resolver.
- FIG. 10 is a block diagram showing a processing circuit of a rolling bearing unit with a sensor according to the fourth embodiment.
- FIG. 11 is a view showing a fifth embodiment of a rolling bearing unit with a sensor according to the present invention, which is a sectional view corresponding to FIG. 8 of the fourth embodiment.
- FIG. 12 is a block diagram showing a processing circuit of a rolling bearing unit with a sensor according to the fifth embodiment.
- FIG. 13 is a view corresponding to FIG. 9 showing another embodiment of the mounting portion of the resolver.
- BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
- Figures 1 and 2 show the rolling bearing unit with sensor of the present invention.
- left and right and up and down mean left and right and up and down in FIG.
- the vehicle has a rolling bearing (1) as a bearing and a resonoreno (2) for detecting its rotation.
- the bearing (1) consists of an outer ring (3) as a fixed ring, a ring (4) as a rotating wheel, and a plurality of rolling elements (balls) arranged between them.
- the outer ring (3) is fixed to a housing or the like, and the ring (4) is fixed to a rotating shaft and the like.
- the stator (7) is formed by sequentially winding a coil around a ring-shaped iron core (9) having an inner diameter formed in a comb tooth shape and all teeth (9a) of the iron core (9). And a stator winding (10).
- the stator ( 7 ) is press-fitted and fixed to the right end of the outer race (3) with the iron core (9) with the tips of the teeth (9a) facing radially inward.
- the inner diameter of the iron core (9) of the stator (7) is made concentric with the inner diameter of the outer ring (3).
- the inner diameter of the iron core (9) is slightly larger than the outer diameter of the ring (4).
- the rotor (8) of the resolver (2) is formed by processing the portion of the ring (4) facing the stator, that is, the right end, for the rotor.
- the shape of the rotor (8) is cylindrical, and its central axis is located slightly below the axis of the ring (4).
- the eccentric cylindrical surface is eccentric from the other outer peripheral surface (4a) of the ring portion (4). Therefore, when the ring part (4) rotates, the gap between the iron core (9) of the stator (7) having an inner diameter concentric with the inner diameter of the outer ring (3) and the rotor (8) composed of an eccentric cylindrical surface is formed. Then, a voltage corresponding to the rotation angle is obtained in the stator (7) and sent to the processing circuit via the signal line (11).
- Figs. 3 to 4 show the second embodiment of the sensor-equipped rolling bearing unit of the present invention. 2 shows two embodiments.
- the left and up and down refer to the left and right and up and down of Fig. 3, and as shown in Fig. 3 and Fig. 4, the rolling bearing unit with sensor shall be a bearing. Equipped with a rolling bearing (21) and a resolver (22) that detects its rotation
- the rolling bearing (21) is a double-row angular contact ball bearing having an outer ring member (23) as a fixed wheel, two inner ring members (24) as rotating wheels, and two rows between them.
- Ball (25) which is a plurality of rolling elements, and cages (26) for holding the balls (25) in each row, respectively.
- the outer ring member (23) has a housing.
- the rotation shaft and the like are fixed to the inner ring member (24).
- Resolno (22) is a VR type brushless resonoreno
- the stator (27) is provided on the outer member (23), and the rotor (28) is provided on the inner ring member (24).
- the stator (27) has a ring-shaped iron core (29) having an inner diameter formed in a comb-teeth shape, and coils wound sequentially on all the teeth (29a) of the iron core (29). And a stator winding (30) formed by cutting.
- Stator In (27) the iron core (29) is press-fitted into a substantially central portion in the axial direction of the outer race member (23) and fixed in a state where the tips of the teeth (29a) are oriented in the radial direction.
- the inner diameter of the iron core (29) of the stator (27) is set to the inner diameter of the outer ring member (23).
- the inner diameter of the iron core (29) is slightly larger than the outer diameter of the inner ring member (24).
- the mouth (28) of the resonoreno (22) is formed by processing the portion of the inner race member (24) facing the stator for the mouth.
- the stator (27) is slightly shifted to the right from the center of the outer ring member (23) in the axial direction, and its iron core (29) is shifted to the right inner ring member (24). It is positioned to face the left end.
- the processing for the rotor is performed only on the left end of the right inner ring member (24).
- the shape of the rotor (28) is a cylindrical surface and its center is Since the shaft is positioned slightly below the shaft of the inner ring member (24), the other outer peripheral surface (24a) of the inner ring member (24) is formed as an eccentric cylindrical surface that is eccentric. I have. Accordingly, when the inner ring member (24) rotates, the rotor composed of the eccentric cylindrical surface and the iron core (29) of the stator (27) having an inner diameter concentric with the inner diameter of the transit member (23)
- the gap with (28) changes, and a voltage corresponding to the rotation angle is obtained on the stator (27), which is sent to the processing circuit via the signal line (31). This makes it possible to detect the rotation state of the rotating shaft required for ABS and the like.
- the rolling bearing with sensor has a hapunit (41) as a bearing and a resolver (42) for detecting its rotation.
- the nosepiece (41) is an outer ring member as a fixed-side track member fixed to the vehicle body (hereinafter referred to as “body-side track member J”) (4
- 43) is a cylindrical part (52) in which two rows of outer raceways are formed on the inner peripheral surface, and is mounted near the left end of the cylindrical part (52) and attached to a suspension system (vehicle body) by a port.
- the rotation-side raceway member (44) has a large-diameter portion (55) having a first raceway groove ( 55a ) and a small-diameter portion (55) having an outer diameter smaller than the diameter of the first raceway groove ( 55a ).
- a shaft portion (54) comprising a shaft portion (54) comprising a shaft portion (56) and a ring portion (57) fitted to the small diameter portion (56) of the shaft portion (54).
- a male thread is formed at the left end, and the male thread is provided with a nut (58) which makes the jing (57) closely contact the left end of the entry (55) of the shaft (54).
- a flange (60) In the vicinity of the right end of the shaft (54) where the () is screwed, there is provided a flange (60) to which a plurality of ports (59) for mounting wheels are fixed.
- a raceway groove (57a) is formed in the ring part (57) so as to be parallel to the raceway raceway groove (55a).
- a seal device (61) is provided between the right end portion of the vehicle body side track member (43) and the shaft portion (55).
- the resolver (42) is a VR type resilon reno
- the stator (47) is on the vehicle-side raceway member (43), and the mouth (48) is on the rotation-side raceway member (44). It is provided and provided.
- the stator (47) is formed by sequentially winding a coil around a ring-shaped core (49) having an inner diameter formed in a comb-teeth shape, and all teeth (49a) of the core (49). And a stator winding (50).
- the stator (47) is press-fitted and fixed to substantially the center in the axial direction of the vehicle body-side track member (43) with the iron core (49) having the tips of the teeth (49a) facing radially inward.
- the inner diameter of the iron core (49) of the stator (47) is made concentric with the inner diameter of the vehicle body side track member (43).
- the inner diameter of the iron core (49) is slightly larger than the outer diameter of the large diameter part (55) of the shaft part (54).
- the rotor (48) of the resorno (42) is formed by processing the portion of the rotating side raceway member (44) that faces the stator for the rotor, and is formed by the rotor.
- the stator (47) is positioned so as to face near the left end of the large diameter portion (55) of the shaft portion (54).
- the machining for the data is performed on the left end of the large diameter portion (55) of the shaft portion (54).
- the shape of the first part (48) is a cylindrical surface and its central axis is located slightly below the axis of the rotation-side raceway member (44), so that the shaft ( An eccentric cylindrical surface is eccentric from the other outer peripheral surface of the large diameter portion (55) of (54).
- the core (4) of the stator (47) having an inner diameter concentric with the inner diameter of the vehicle-side race member (43) is obtained.
- the gap between 9) and the eccentric cylindrical surface (48) changes, and a voltage corresponding to the rotation angle is obtained on the stator (47), which is a signal line.
- the rotating-side raceway member (44) is formed by integrating the shaft and the ring portion (57).
- this is possible to contribute to a reduction in the weight and weight of the bearing part. it can.
- FIGS. 7 and 8 show a fourth embodiment of a rolling bearing unit with a sensor according to the present invention.
- the rolling bearing unit with sensor is composed of a knob unit (71) as a bearing and a sensor device for detecting its rotation and ground load. And a resolver (72).
- balls (75) which are a plurality of moving bodies, arranged in two rows between (74) and cages (76) for holding the balls (75) in each row, respectively.
- the fixed-side raceway member (73) has a cylindrical portion (82) having two rows of outer ring raceways formed on the inner peripheral surface, and a suspension device (vehicle body) provided near the left end of the cylindrical portion (82).
- the rotation side raceway member (74) has a large diameter ⁇ 1 having a first raceway groove (85a).
- a flange part (88) Near the right end of the shaft part (84), a flange part (88) to which a plurality of bolts (89) for mounting wheels are fixed is provided.
- a raceway groove (87a) is formed on the right side of the ring part (87) so as to be parallel to the raceway groove (85a) of the shaft part (84). Is formed with a shoulder (87b) on the left side.
- a seal device is provided between the right end of the fixed-side track member (73) and the shaft portion (84).
- the left end of the fixed-side raceway member (73) is covered with an input pin (91).
- the cover (91) is formed in a cylindrical shape with a bottom by using metal or resin, and is fitted and fixed to the inner periphery of the left end of the fixed track member (73) at the right end.
- a cylindrical fixing portion (91a) is formed.
- the resolver (72) is a VR type brushless resolver
- the rotor (78) is provided on the shoulder (87b) of the ring (87) of the rotation-side raceway member (74), which is the position facing the stator.
- the stator (77) signal is output to the outside via wiring members such as a lead wire (93) and a connector pin (94).
- the output of (80) is connected to connector pin (94) via lead wire (93).
- the connector (91c) at the bottom of the power supply (91) is also formed of resin.
- the connector pin (94) is housed in the connector portion (91c) with its tip protruding from the resin (92).
- a plurality of lead wires (93) and connector pins (94) are provided according to the type of signal. In this way, the stator (77) and its wiring members (93), (94) are provided only on the force par (91), and the wiring connection of the stator (77) can be performed easily and without fear of disconnection. You.
- a stop portion (73b) having a diameter slightly smaller than the left end open P diameter is formed near the left end of the fixed-side raceway member (73).
- the right end of the fixing portion (91a) of the cover (91) comes into contact with the stopper portion (73b) from the left side, so that the stator (77) is connected to the jing portion (87).
- the stator (77) is connected to the jing portion (87).
- stator (77) is fixed on the fixed side via the cover (91).
- the inner diameter of the iron core (79) of the stator (77) is concentric with the inner diameter of the fixed-side track member (73) by being press-fitted into the left end of the track member (73).
- the inner diameter of the iron core (79) is slightly larger than the outer diameter of the shoulder (87b) of the ring (87).
- the detected surface of the rotor (78) of the resolver (72) is formed by adding the outer surface of the shoulder (87b) of the ring (87) facing the stator, that is, the outer surface of the shoulder (87b). Is formed.
- the same load is required for the form.
- the obtained ground contact load is output to the vehicle control means, and the vehicle is appropriately controlled.
- FIG. 11 shows a fifth embodiment of a rolling bearing unit with a sensor according to the present invention.
- This embodiment differs from the fourth embodiment only in the shape of the tab (78).
- the same components as those in the fourth embodiment will be denoted by the same reference numerals. And omit the explanation
- the bearing unit of the fifth embodiment when the grounding load of the tire fluctuates, the displacement of the revolving-side track member (74) with respect to the fixed-side rail member (73) is reduced.
- the air gap between the stator (77) and the mouth (78) detected by the resolver (72) changes accordingly, as shown in Fig. 12.
- the change in the air gear V-loop amount is output from the resolver (72) as a voltage fluctuation amount.
- the amount of deformation varies gradually with a relatively large amplitude because the detected surface of the rotor (78) is an eccentric cylindrical surface, whereas the air gap of the fifth embodiment is different from that of the fifth embodiment.
- the cut surface is notched (81) with a notch (78) Since it is a cylindrical surface, a / peakless gap peak value is superimposed on a waveform of relatively small amplitude. Then, in the rotation detection unit of the processing circuit of the resolver (sensor device), a rotation angle and a rotation speed required for ABS or the like are obtained based on the pulse-like peak value of the output signal of the resolver.
- the processing circuit of the Resolno is further provided with a grounding load calculation unit that stores a calculation formula for obtaining the grounding load from the waveform excluding the pulse-like peak value from the displacement amount. The load on the ground is calculated by the calculation unit. The obtained ground contact load is output to the vehicle control means, and the vehicle is appropriately controlled.
- the stator (77) is fixed to the fixed-side track member (73) via the (91). However, as shown in FIG. 13, the stator (77) is fixed to the left end of the fixed-side track member (73). It may be directly press-fitted and fixed to the inner peripheral surface (73a) of the portion. To perform this installation, first press the stator (77) into contact with the stopper (73b) of the fixed-side track member (73), and then insert the output hopper (91) into the fixed side. What is necessary is just to fit and fix to the inner peripheral surface (73a) at the left end of the track member (73).
- a connector (95) is attached to the end of a lead wire (93) from the stator winding (80).
- the connector (91c) at the bottom of the cover (91) is made of resin, as in the case of Fig. 6, and the connector pin (94) is attached to the connector (91c). ⁇ ⁇ ⁇ It is stored so as to protrude from the resin (92).
- the intermediate connector pins (96) are connected to the connector pins (end connectors) (94) via lead wires (97), and these connector pins (94) are connected to the intermediate connector pins (94).
- the V-shaped lead (97) is applied by the resin (92) filled inside the power supply (91) with the end of each connector pin (94) (96) exposed. It is embedded and fixed in noisychi (91).
- the K-line (93) and the connector (95) on the side of the stator winding (80) are separated from the resin (92).
- the wiring connection of the stator (77) can be made easily and without fear of disconnection.
- the rolling bearing unit with sensor according to the invention of the invention of the invention is, for example, formed by replacing a bearing with a shaft 5 of a kind such as a hub unit constituting an automobile.
- a sensor device that detects various types of information such as moving vehicles is integrated into the rolling bearing. This makes it possible to obtain useful information for control. This contributes to improving the control performance of white moving vehicles. Togadesa
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03780960A EP1574823A4 (en) | 2002-12-20 | 2003-12-19 | ROLLER BEARING UNIT EQUIPPED WITH SENSOR |
US10/539,804 US7282907B2 (en) | 2002-12-20 | 2003-12-19 | Antifriction bearing unit having a sensor and a resolver |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-369457 | 2002-12-20 | ||
JP2002369457A JP4238576B2 (ja) | 2002-12-20 | 2002-12-20 | センサ付き転がり軸受ユニット |
JP2003-024239 | 2003-01-31 | ||
JP2003024239A JP4182763B2 (ja) | 2003-01-31 | 2003-01-31 | センサ付きハブユニット |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004057276A1 true WO2004057276A1 (ja) | 2004-07-08 |
Family
ID=32684194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/016390 WO2004057276A1 (ja) | 2002-12-20 | 2003-12-19 | センサ付き転がり軸受ユニット |
Country Status (4)
Country | Link |
---|---|
US (1) | US7282907B2 (ja) |
EP (1) | EP1574823A4 (ja) |
KR (1) | KR20050093791A (ja) |
WO (1) | WO2004057276A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060186627A1 (en) * | 2003-03-10 | 2006-08-24 | Katsura Koyagi | Axle-supporting device |
KR100927690B1 (ko) * | 2005-01-31 | 2009-11-18 | 도요타 지도샤(주) | 리졸버 고정 구조물 |
US8700239B2 (en) * | 2007-01-16 | 2014-04-15 | Charles Hampton Perry | Machine for augmentation, storage, and conservation of vehicle motive energy |
US9329022B2 (en) | 2010-04-26 | 2016-05-03 | Schaeffler Technologies AG & Co. KG | Roller bearing arrangement with an angle sensor |
US20120013217A1 (en) * | 2010-07-13 | 2012-01-19 | Remy Technologies, L.L.C. | Magnetic flux carrying sleeve member for an electric machine |
JP5870607B2 (ja) * | 2011-02-14 | 2016-03-01 | 株式会社ジェイテクト | レゾルバ及びレゾルバ付き転がり軸受装置 |
JP2012177587A (ja) * | 2011-02-25 | 2012-09-13 | Jtekt Corp | レゾルバ、及びこれを備えたレゾルバ付き軸受 |
WO2013175257A1 (en) * | 2012-05-22 | 2013-11-28 | Aktiebolaget Skf | Sensor-bearing unit and apparatus comprising such an unit |
DE102012215957A1 (de) | 2012-09-10 | 2014-05-15 | Schaeffler Technologies Gmbh & Co. Kg | Resolverlager |
JP2014070656A (ja) * | 2012-09-28 | 2014-04-21 | Jtekt Corp | 鉄道車両用軸受装置 |
CN104852524A (zh) * | 2014-02-13 | 2015-08-19 | 舍弗勒技术股份两合公司 | 集成化轮毂轴承及汽车 |
DE102015208837B4 (de) * | 2015-05-13 | 2017-03-30 | Schaeffler Technologies AG & Co. KG | Sensoranordnung mit einem Winkelsensor sowie Wälzlageranordnung mit Sensoranordnung |
KR102368517B1 (ko) * | 2020-07-14 | 2022-03-02 | 현대모비스 주식회사 | 인휠 구동 장치 및 그 인휠 구동 장치를 포함하는 자동차 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6042603A (ja) * | 1983-08-18 | 1985-03-06 | Ono Sokki Co Ltd | 角度センサ |
US5234269A (en) | 1989-02-24 | 1993-08-10 | The Torrington Company | Antifriction bearing with a clip-on sensor |
JPH08136560A (ja) * | 1994-11-04 | 1996-05-31 | Nippon Seiko Kk | 回転速度検出装置付転がり軸受ユニット |
JPH08248049A (ja) * | 1995-03-08 | 1996-09-27 | Nippondenso Co Ltd | 回転センサ |
DE19612825A1 (de) | 1996-03-30 | 1997-10-02 | Fag Automobiltechnik Ag | Wälzlager, insbesondere Radlager für Kraftfahrzeuge |
DE19644744A1 (de) | 1996-10-28 | 1998-05-07 | Fag Automobiltechnik Ag | Wälzlagerung mit einer geschützten Drehzahlmeßeinrichtung |
JPH11174069A (ja) | 1997-12-15 | 1999-07-02 | Koyo Seiko Co Ltd | 回転速度検出装置およびそれを備える車両用ハブユニット |
JPH11257998A (ja) * | 1998-01-09 | 1999-09-24 | Nippon Seiko Kk | エンコーダ付転がり軸受ユニット |
JP2000225931A (ja) * | 1999-02-02 | 2000-08-15 | Koyo Seiko Co Ltd | 回転速度検出装置 |
JP2000258187A (ja) * | 1999-03-12 | 2000-09-22 | Tamagawa Seiki Co Ltd | バリアブルリラクタンス型レゾルバの零位置検出装置 |
JP2001201362A (ja) * | 2000-01-18 | 2001-07-27 | Ebara Corp | 回転検出装置 |
JP2002107111A (ja) * | 2000-10-03 | 2002-04-10 | Tamagawa Seiki Co Ltd | 回転検出器の鉄心構造 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3079548A (en) * | 1958-11-05 | 1963-02-26 | Lancashire Dynamo Electronic P | Electromechanical signalling apparatus |
US3719841A (en) * | 1971-07-02 | 1973-03-06 | Bendix Corp | Wheel speed sensors for vehicle adaptive braking systems |
US4752732A (en) * | 1985-03-14 | 1988-06-21 | Baker-Hughes | Angular displacement sensor |
IT1221909B (it) * | 1987-04-28 | 1990-07-12 | Fiat Auto Spa | Procedimento e dispositivo di rilevazione magnetica particolarmente per rilevare i parametri di movimento angolare di elementi rotanti |
JP2633274B2 (ja) * | 1987-12-28 | 1997-07-23 | 光洋精工株式会社 | 自動車のホイール用軸受ユニツト |
US4932245A (en) * | 1989-08-16 | 1990-06-12 | Siemens-Bendix Automotive Electronics L.P. | Magnetic ring mounting fixture |
US5059900A (en) * | 1990-06-06 | 1991-10-22 | Techco Corporation | Method and apparatus for determining the angular velocity of a shaft |
US5140262A (en) * | 1991-07-02 | 1992-08-18 | Honeywell Inc. | Geartooth sensor with a centerline in nonintersecting relation with a center of rotation of a rotatable member |
JP2911664B2 (ja) * | 1991-09-25 | 1999-06-23 | オークマ株式会社 | 多変位検出装置 |
US5696444A (en) * | 1994-03-04 | 1997-12-09 | Crane Co. | Monitoring system for detecting axial and radial movement of a rotating body independent of rotational position |
FR2734873B1 (fr) * | 1995-05-30 | 1997-07-11 | Skf France | Roulement equipe d'un dispositif integre de detection de la vitesse de rotation |
JP3740770B2 (ja) * | 1995-12-28 | 2006-02-01 | 日本精工株式会社 | 密閉型アクチュエ−タ |
DE19640895B4 (de) | 1996-10-04 | 2007-07-12 | Schaeffler Kg | Wälzlager mit einer integrierten Drehzahlmeßeinrichtung |
DE10163321C1 (de) * | 2001-12-21 | 2003-08-14 | Minebea Co Ltd | Spalttopfmotor |
JP4261945B2 (ja) * | 2003-03-06 | 2009-05-13 | 日本精工株式会社 | 角度位置検出装置 |
JP4034690B2 (ja) * | 2003-04-28 | 2008-01-16 | ミネベア株式会社 | 2重化バリアブルリラクタンスレゾルバおよびそれを用いた複速度レゾルバシステム |
-
2003
- 2003-12-19 US US10/539,804 patent/US7282907B2/en not_active Expired - Fee Related
- 2003-12-19 KR KR1020057011563A patent/KR20050093791A/ko not_active Application Discontinuation
- 2003-12-19 EP EP03780960A patent/EP1574823A4/en not_active Ceased
- 2003-12-19 WO PCT/JP2003/016390 patent/WO2004057276A1/ja active Application Filing
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6042603A (ja) * | 1983-08-18 | 1985-03-06 | Ono Sokki Co Ltd | 角度センサ |
US5234269A (en) | 1989-02-24 | 1993-08-10 | The Torrington Company | Antifriction bearing with a clip-on sensor |
JPH08136560A (ja) * | 1994-11-04 | 1996-05-31 | Nippon Seiko Kk | 回転速度検出装置付転がり軸受ユニット |
JPH08248049A (ja) * | 1995-03-08 | 1996-09-27 | Nippondenso Co Ltd | 回転センサ |
DE19612825A1 (de) | 1996-03-30 | 1997-10-02 | Fag Automobiltechnik Ag | Wälzlager, insbesondere Radlager für Kraftfahrzeuge |
DE19644744A1 (de) | 1996-10-28 | 1998-05-07 | Fag Automobiltechnik Ag | Wälzlagerung mit einer geschützten Drehzahlmeßeinrichtung |
JPH11174069A (ja) | 1997-12-15 | 1999-07-02 | Koyo Seiko Co Ltd | 回転速度検出装置およびそれを備える車両用ハブユニット |
JPH11257998A (ja) * | 1998-01-09 | 1999-09-24 | Nippon Seiko Kk | エンコーダ付転がり軸受ユニット |
JP2000225931A (ja) * | 1999-02-02 | 2000-08-15 | Koyo Seiko Co Ltd | 回転速度検出装置 |
JP2000258187A (ja) * | 1999-03-12 | 2000-09-22 | Tamagawa Seiki Co Ltd | バリアブルリラクタンス型レゾルバの零位置検出装置 |
JP2001201362A (ja) * | 2000-01-18 | 2001-07-27 | Ebara Corp | 回転検出装置 |
JP2002107111A (ja) * | 2000-10-03 | 2002-04-10 | Tamagawa Seiki Co Ltd | 回転検出器の鉄心構造 |
Also Published As
Publication number | Publication date |
---|---|
EP1574823A1 (en) | 2005-09-14 |
EP1574823A4 (en) | 2008-06-11 |
US7282907B2 (en) | 2007-10-16 |
US20060087315A1 (en) | 2006-04-27 |
KR20050093791A (ko) | 2005-09-23 |
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