CN100432674C - Sensor assembly body, seal device, and rolling bearing device for motor vehicle - Google Patents
Sensor assembly body, seal device, and rolling bearing device for motor vehicle Download PDFInfo
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- CN100432674C CN100432674C CNB2004800045613A CN200480004561A CN100432674C CN 100432674 C CN100432674 C CN 100432674C CN B2004800045613 A CNB2004800045613 A CN B2004800045613A CN 200480004561 A CN200480004561 A CN 200480004561A CN 100432674 C CN100432674 C CN 100432674C
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- sealing ring
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Abstract
A seal device has an outer ring-side seal ring fixed to an outer ring member and an inner ring-side seal ring fixed to an inner ring member. A pulser ring is fixed to a circular core metal of the inner ring-side seal ring. A magnetic sensor is resin-molded in and integrated with an exterior body at the outer diameter side of a circular core metal of the outer ring-side seal ring. A connector connected to the magnetic sensor is provided on the exterior body in a continuous relationship. A reinforcement member for reinforcing the strength of the sensor- side connector is provided at least either the exterior body or the sensor-side connector.
Description
Technical field
The present invention relates to a kind of rolling bearing device that is used for automobile, wherein be used for detecting the sensor of rotation of automobile ABS uses such as (anti-lock braking systems) and pulser ring in conjunction with the packoff that enters well-known packing seal (pack seal), and the gap between the inner and outer ring has this packoff of rotation detector to seal with combination therein, the invention still further relates to a kind of sensor element and packoff that is configured for the rolling bearing device of automobile.
Background technology
In relevant technical field, a kind of rolling bearing device that is provided with rotation detector (for example, publishing document No.7-197938 with reference to the disclosed patented claim of Japan) that is used for automobile had been proposed.Be used herein in the rolling bearing device of automobile, rolling member is inserted between the interior ring of forming swivel eye and each raceway face of the outer shroud of forming set collar.Space between interior ring and the outer shroud seals by packoff.
Rotation detector comprises encoder components that is fixed to interior ring and the detecting element that is fixed to outer shroud.Detecting element is by detecting the rotation status that encoder components detects interior ring.
One of the embodiment that the bearing apparatus that is provided with rotation detector is administered to automobile is used for an example of the rotation detector of ABS etc. for the bearing apparatus that wherein is used for relative car body and supports the automobile axle rotatably is provided with.More particularly, can consist of so that the interior hoop of bearing apparatus is assembled to outward on the automobile axis.Outer shroud is fixed on the car body by the joint cover, the variation in the magnetic field of the pulser ring in sensor is fixed on the ring.Detection signal is delivered in the electronic circuit of car body by the electric wire distribution.
Generally, sensor is fixed to joint cover and electronic circuit is arranged on car body.For this reason, because the swing of car body when being connected to damper with the opposing operation is overlapped in the joint, so the vibration of car body can not be delivered to the joint cover.Therefore, therefore the electronic circuit that is arranged on car body can cause vibration owing to the swing of car body.Yet the sensor that is fixed to the joint cover can not be subjected to the influence of body oscillating.Therefore, the electric wire distribution of connection sensor and electronic circuit may become disconnection owing to the vibration of car body.In addition, at present, for conserve space, abs sensor is combined in the packoff that is assembled to bearing apparatus, and it is referred to as packing seal.Produce following problem:, then need to change the whole hub unit that comprises bearing apparatus if the electric wire distribution disconnects and abs sensor is in up-set condition for this reason.Therefore, maintenance operation is wanted spended time and artificial, and expense is very high.In addition, because the weight of the electric wire distribution that vehicle body swing etc. cause is applied to the coupling part between sensor and the electric wire distribution.Therefore, because the insufficient strength of coupling part can produce disconnection.
Summary of the invention
The present invention is a kind of sensor element that is fixed to the outer ring of the rolling bearing device that is used for automobile and detects the rotation status of interior ring.Described sensor element comprise sealing ring, integral body be arranged on the sensor of sealing ring, with resin moulded sensor so that sensor becomes as a whole exterior part, one end to be formed with exterior part continuously with sealing ring, and the sensor side connector that its other end and electric wire distribution side-connector freely are connected/disconnect and be connected to exterior part or the sensor side connector at least one and strengthen the reinforcement of the intensity of sensor side connector.The other end of described exterior part forms the annular shape that extends radially outwardly, one end integral body of described sensor side connector is formed at the other end of the described extension of described exterior part, and its other end forms the drum that the described other end than described exterior part extends radially outwardly more.Described reinforcement comprises annular reinforcer that first extension by the described outer rim side sealing ring that extends along the back side of the described other end of described exterior part constitutes and the semi-cylindrical shaped reinforcement that is made of second extension of the described outer rim side sealing ring that extends along the surface of the described other end of described sensor side connector.
In optimal way, the other end of exterior part extends radially outwardly, and reinforcement is made of the extension of the sealing ring that extends to the exterior part other end.
In optimal way, the other end of sensor side connector extends radially outwardly, and reinforcement is made of the extension of the sealing ring that extends to the other end of sensor side connector.
Packoff of the present invention comprises the outer rim side sealing ring that is fixed to outer ring and is made up of nonmagnetic substance, the interior ring side seal ring of ring in being fixed to, be arranged on the Magnetic Sensor of the periphery of outer rim side sealing ring, form rotation detector together with Magnetic Sensor and integrally be arranged on the interior magnet ring that encircles radially relative Magnetic Sensor position in the side seal ring, with resin moulded Magnetic Sensor so that Magnetic Sensor becomes as a whole exterior part with the outer rim side sealing ring, the one end is formed with exterior part continuously, and its other end constitutes the sensor side connector of connection/disconnection electric wire distribution side-connector freely, and be connected at least one in exterior part or the sensor side connector and strengthen the reinforcement of the intensity of sensor side connector.
For example, the rotation detector of use is for changing the dynamic type detecting device (active detector) of output according to the variation of magnetic flux.Magnet ring comprises pulser ring, and Magnetic Sensor comprises by two Magnetic Sensors that the magnetic test section is formed along circumference setting separated from one another.
Automobile rolling bearing device of the present invention comprises the outer ring that is fixed to the car body side, interior ring with the concentric setting of outer ring, can be rotatably set in a plurality of rolling members between outer ring and the interior ring, be fixed to the outer rim side sealing ring of outer ring, form packoff jointly with the outer rim side sealing ring and be fixed in interior ring side seal ring on the ring, integrally be arranged on the Magnetic Sensor of outer rim side sealing ring, with resin moulded Magnetic Sensor so that Magnetic Sensor becomes as a whole exterior part with the outer rim side sealing ring, the one end is formed with exterior part continuously, and the sensor side connector that its other end and electric wire distribution side-connector can be connected/disconnect, be connected at least one in exterior part or the sensor side connector and strengthen the reinforcement of the intensity of sensor side connector, and form rotation detector jointly with Magnetic Sensor and be fixed in the pulser ring of a side of ring side seal ring.
According to rolling bearing device of the present invention, comprise the rotation detector and the whole formation of packoff of Magnetic Sensor and magnet ring, and the sensor side connector that is connected to Magnetic Sensor is formed with the exterior part with resin moulded Magnetic Sensor continuously, so packoff, rotation detector and sensor side connector are as a whole.
The electric wire distribution that is used to connect the electronic circuit of Magnetic Sensor and car body at one end is connected to electronic circuit, is connected to and the Magnetic Sensor electric wire distribution side-connector of the sensor side connector of molding integrally and have can connect/disconnect at the other end.Electronic circuit is connected to Magnetic Sensor by electric wire distribution side-connector is connected to the sensor side connector that integrally is arranged on the Magnetic Sensor place with can connecting/disconnect.Therefore, the electric wire distribution separates with the compound body that comprises packoff, rotation detector and sensor side connector, if so as the electric wire distribution since when operation car body swing cause disconnection, then only just can change easily, thereby can make things convenient for and keep in repair at low cost by removing the electric wire distribution from the sensor side connector part.
In the sensor element of the outer rim side sealing ring of forming packoff, sealing ring diametric(al) outside extends forming reinforcing section, and the sensor side connector that integrally is arranged on exterior part is strengthened with reinforcing section.Therefore, when the weight that is connected to sensor side connector and electric wire distribution when electric wire distribution side-connector is applied to the sensor side connector of the exterior part that forms weak intensity, can prevent of the bending of sensor side connector, thereby prevent disconnection of Magnetic Sensor lead etc. in the reinforcing section direction.
According to rolling bearing device of the present invention, comprise the rotation detector and the Unitarily molded formation of packoff of Magnetic Sensor and magnet ring, and the sensor side connector that is connected to Magnetic Sensor is formed with the exterior part with resin moulded Magnetic Sensor continuously, so that packoff, rotation detector and sensor side connector are as a whole.
The electric wire distribution that is used to connect Magnetic Sensor and car body electronic circuit at one end is connected to electronic circuit, and has and as a whole being connected of Magnetic Sensor/the disconnect sensor side connector that is connected to electric wire distribution side-connector at the other end.Magnetic Sensor connects by electric wire distribution side-connector is connected to the sensor side connector with can being connected/disconnecting with electronic circuit.Therefore, the electric wire distribution separates with the compound body that comprises packoff, rotation detector and sensor side connector, with box lunch since when operation car body the electric wire distribution that causes of swing when disconnecting, then only just can change easily, thereby can make things convenient for and keep in repair at low cost by removing the electric wire distribution from the sensor side connector part.
In the sensor element of the outer rim side sealing ring of forming packoff, the surface in contact that contacts with the peripheral surface of outer ring is formed at the sensor side connector place that integral body is arranged on the exterior part of diametric(al) extension outside.Therefore, when the weight that is connected to sensor side connector and electric wire distribution when electric wire distribution side-connector is applied to the sensor side connector of the exterior part that forms weak intensity, can prevent the connector bending of the peripheral surface direction of ring outside, thereby prevent disconnection of Magnetic Sensor lead etc.
Description of drawings
Corresponding explanation is undertaken by the accompanying drawing of aid illustration embodiment of the present invention, wherein:
Fig. 1 shows the cross sectional view of whole composition that is used for the rolling bearing device of automobile according to embodiment of the present invention;
Fig. 2 is the amplification cross sectional view of the major part of displayed map 1;
Fig. 3 (A) is the signal waveforms that shows a test section of two magnetic test sections forming Magnetic Sensor;
Fig. 3 (B) is the signal waveforms that shows another test section of two magnetic test sections forming Magnetic Sensor;
Fig. 4 is the zoomed-in view that shows Magnetic Sensor;
Fig. 5 (A) is the oblique view of watching previously that shows from packoff;
Fig. 5 (B) is the oblique view of watching later that shows from same packoff;
Fig. 6 is the cross sectional view that shows the packoff that omits the sensor side connector;
Fig. 7 is the cross sectional view that shows the packoff that comprises the sensor side connector;
Fig. 8 shows that according to the present invention another embodiment is used for the cross sectional view of a part of the rolling bearing device of automobile;
Fig. 9 is the amplification cross sectional view of the major part of displayed map 8;
Figure 10 (A) is the oblique view of watching previously that shows from the packoff of Fig. 8;
Figure 10 (B) is the oblique view of watching later that shows from the packoff of Fig. 8; And
Figure 11 shows that according to the present invention another embodiment is used for the cross sectional view of a part of the rolling bearing device of automobile.
Embodiment
Below with reference to accompanying drawings the rolling bearing device that is used for automobile according to the preferred embodiment for the present invention is specifically described.
Fig. 1 shows the cross sectional view of whole composition that is used for the rolling bearing device of automobile according to embodiment of the present invention, and Fig. 2 is the amplification cross sectional view of the major part of displayed map 1.In these figure, the left side be automobile laterally, and the right side be automobile to the inside.Though rolling bearing device 1 is for being used for drive wheels, it also can be applied to the drive wheels of coupling.
The flange portion 21 that is formed in the peripheral surface of outer ring 2 as stationary annular is fixed to joint cover 9 by bolt 10, and outer ring 2 non-rotatably supports by car body.Two bypass road surfaces in axial direction are formed at the inner circumferential surface of outer ring 2.Interior ring 3 is the swivel eye of being made up of wheel hub 31 and interior ring 32.Wheel hub 31 and interior ring 32 are by by rotatably being supported by outer ring 2 being arranged on each rolling member 4 and 5 of forming of row ball of pushing in the centring ring 6 along the circumference equidistant position respectively.
Than from the peripheral surface of the flange portion 34 more close automobile inner sides of wheel hub 31 interior circuit surface as the rolling member 4 of delegation.Cylinder small diameter portion 31a is formed on the automobile wheel hub 31 laterally, and interior ring 32 outwards is coupled to the peripheral surface of this small diameter portion 31a.The peripheral surface of interior ring 32 is used for the interior circuit surface of the rolling member 5 of another row.At the edge surface place of the automobile inner side of interior ring 32, the small diameter portion 31a of wheel hub 31 direction outwards the marginal portion of distortion by fold.
The outer rim side sealing ring 81 (Fig. 6) and the interior ring side seal ring 82 of one of packoff 8 element by being combined as sensor element constitute.Sensor element comprises outer rim side sealing ring 81, Magnetic Sensor 15 and exterior part 17.
Outer rim side sealing ring 81 be connected to the side of outer ring 2 and comprise toroidal cores metal 83 and main lip 84 and auxiliary lip 85 to cover this toroidal cores metal 83.The annular slab part 83b that toroidal cores metal 83 is included in cylindrical portions may 83a that axial direction extends and extends radially inwardly from the inward flange side at the axial direction of cylindrical portions may 83a.Toroidal cores metal 83 is a non-magnetic ring, and by for example making such as nonmagnetic stainless steel of nonmagnetic substance.
In ring side seal ring 82 be connected in ring 32 the side and by toroidal cores metal 86 and axially lip 87 and radially lip 88 form to cover this toroidal cores metal 86.Toroidal cores metal 86 is included in axial direction extension and the radially cylindrical portions may 86a of relative cylindrical portions may 83a and axially extending radially outwardly and the axial annular slab part 86b of annular slab part 83b relatively from the outward flange side at cylindrical portions may 86a.Each lip 84,85,87 and 88 is all made by the rubber as nitrile rubber (NBR) etc., and sulfuration is to bond to toroidal cores metal 83 and 86.
The outer ring surface in contact 17a of annular that axially contacts with end face 2b of ring 2 is formed on the exterior part 17 outside.Be used for being arranged on the periphery of sensor side connector 20 with the lock ring of sensor side connector locking.
As shown in Figure 4, the Hall IC of two Hall elements 22 of combination is preferably used as the magnetic test section of Magnetic Sensor 15.That is to say that it constitutes so that two Hall elements 22 are provided with (λ/4) at interval,, thereby can detect sense of rotation so that be 90 degree from the magnetization spacing λ of the phase differential relative pulse generator ring 16 between each Hall element output.Magnetization spacing λ is the extremely magnetized whole length of the N utmost point and S.
In packoff 8, consider the outer rim side sealing ring 81 of combination Magnetic Sensor 15, exterior part 17 compression fit are to the shoulder portion 2a of the inner circumferential surface of outer ring 2.Consider the interior ring side seal ring 82 of assembled pulse generator ring 16, toroidal cores metal 86 compression fit are to the shoulder portion 32a of the peripheral surface of interior ring 32.Therefore, packoff 8 closely is connected to outer ring 2 and interior ring 32.Packoff 8 by make outer shroud surface in contact 17a and end face 2b outside the axial direction of ring 2 contact and be positioned.
In the above rolling bearing device that provides 1, inwardly be coupled to joint cover 9 in the marginal portion of automobile outer ring 2 to the inside, and the flange portion 21 usefulness bolts 10 of outer ring 2 are fixed to joint cover 9.Joint cover 9 forms cylinder, and the cut-away portions 91 of reeve sensor side connector 20 is formed at automobile laterally.Rolling bearing device 1 is fixed to joint cover 9 at the state of sensor side connector 20 through injecting cut-away portions 91.
Electric wire distribution side-connector is arranged on the end of the electric wire distribution of the electronic circuit that is connected to car body.Sensor side connector 20 electric wire distribution side-connector therewith can connect/disconnect.Because electric wire distribution side-connector is connected to sensor side connector 20, Magnetic Sensor 15 by with the electronic circuit that is connected to car body that is connected of sensor side connector 20 and electric wire distribution side-connector.
In rolling bearing device 1, when the interior ring 3 ring state down during rotation that non-rotatably is fixed to joint cover 9 outside, with the magnetic test section of relative continuously each Magnetic Sensor 15 of each polarity part of interior ring 3 integrally rotated pulser rings 16.When this situation takes place, the position of the pulser ring 16 of each magnetic test section of Magnetic Sensor 15 changes continuously relatively, so the direction alternate of the magnetic flux that is produced by pulser ring 16, and the first and second rectangle square-wave signals are from Magnetic Sensor 15 outputs.The wave period of each of these rectangle square-wave signals all changes according to the rotatable phase and the rotational speed of pulser ring 16.The waveform of handling each rectangle square-wave signal is with the rotatable phase of ring 3 in finding, rotational speed, gyro frequency, sense of rotation etc.
In rolling bearing device 1, the electric wire distribution separates with the compound body that comprises packoff 8, Magnetic Sensor 15, pulser ring 16 and sensor side connector 20.Because this separates, when the electric wire distribution because when the swing of car body disconnected during operation, electric wire distribution side-connector can shift out with the distribution that more rewires from the sensor side connector easily.Therefore, can carry out the low cost maintenance easily.
Because the electric wire distribution separates with the compound body that comprises packoff 8, Magnetic Sensor 15, pulser ring 16 and sensor side connector 20, so, when rolling bearing device 1 is fixed to the joint when overlapping 9 in compound body is coupled to the state of rolling bearing device 1, there is not the electric wire distribution to disturb fixing operation.Therefore, improved the stationarity of automobile.
The toroidal cores metal 86 of ring side seal ring 82 in pulser ring 16 is fixed to, and Magnetic Sensor 15 is resin moulded with as a whole with 83 one-tenth on the toroidal cores metal of outer rim side sealing ring 81 by exterior part 17 usefulness.Therefore, improved the vacuum seal performance of pulser ring 16 and Magnetic Sensor 15.This has also improved the anti-dust performance of rolling bearing device.
Because the signal wire 18 of Magnetic Sensor 15 is resin moulded by exterior part 17 usefulness, so strengthened the coupling part between Magnetic Sensor 15 and the signal wire 18.Therefore, prevented the disconnection of signal wire 18.In addition, owing to the electric wire distribution separates with the compound body that comprises packoff 8, Magnetic Sensor 15, pulser ring 16 and sensor side connector 20, so the weight of electric wire distribution is not applied to exterior part 17.This has prevented that also the electric wire distribution is connected to connector 20 simultaneously owing to lack the variation of the vacuum seal performance of the exterior part 17 that intensity causes.
As disclosed, in rolling bearing device 1 and state that the whole packoff 8 that forms sensor side connector 20 cooperates, act on cut-away portions 91 laterally from automobile at the sensor side connector 20 that protrudes to the direction of overall diameter.As a result, rolling bearing device 1 can be easily fixed to joint cover 9.Since Magnetic Sensor 15 by exterior part 17 molded and with outer rim side sealing ring 81 whole formation, so Magnetic Sensor 15 has been protected external environment condition.Therefore, improved reliability.
With reference to Fig. 5 to 7, will further specify packoff 8, particularly outer rim side sealing ring 81 and exterior part 17.Fig. 5 (A) is the oblique view of watching previously that shows from packoff 8, Fig. 5 (B) shows the oblique view of watching later from same packoff 8, Fig. 6 is the cross sectional view that shows the packoff 8 that does not have sensor side connector 20, and Fig. 7 is the cross sectional view that shows the packoff 8 that comprises sensor side connector 20.
In ring side seal ring 82 comprise toroidal cores metal 86 and cover the axial lip 87 of this toroidal cores metal 86 and lip 88 radially.The toroidal cores metal 86 of interior ring side seal ring 82 comprises cylindrical portions may 86a and annular slab part 86b.
The other end of exterior part 17 forms the annular that extends radially outwardly.One end integral body of sensor side connector 20 is formed at the other end of exterior part 17.Its other end forms cylindrical shape, further extends radially outwardly than the other end of exterior part 17.
The cylindrical portions may 83a of the toroidal cores metal 83 of outer rim side sealing ring 81 is to automobile inner side extension and radially outward crooked at two intermediate points along this extension.That is to say that as shown in Figure 6 and Figure 7, for the elongated end part of the cylindrical portions may 83a on the automobile inner side, one of its sweep forms the annular reinforcing section 83c towards the other end back side of exterior part 17.On the other hand, its another sweep forms the semi-cylindrical shaped reinforcing section 83d of the other end of facing sensing device side-connector 20.It is not to have two reinforcing section 83c and 83d.That is to say that it is also enough to have a reinforcing section 83d.
Reinforcing section 83c covers the whole back side of the annular section 17b of the exterior part 17 with outer shroud surface in contact 17a.Reinforcing section 83d is from the surface of its end to end covering sensor side-connector 20.Therefore, the automobile inner side of reinforcing section 83d covering sensor side-connector 20 surface and form with continuous formation form with reinforcing section 83c.Reinforcing section 83d reaches the intermediate point of connector 20 in length radially in radial direction, and is formed in radial direction on the whole length of connector 20.The shape of reinforcing section 83d is not limited to the surperficial to the inside shape of automobile of covering connector 20.For example, described shape can also form the whole circumference of covering connector 20.
In the sensor element of being made up of the outer rim side sealing ring 81 of packoff 8, reinforcing section 83c and 83d form by the toroidal cores metal of going up to the inside at external diameter direction prolongation automobile 83.Strengthened by reinforcing section 83c and 83d with the sensor side connector 20 of exterior part 17 formation continuously.
Therefore, when the electric wire distribution side-connector that is connected to when sensor side connector 20 and the weight of electric wire distribution are applied to the sensor side connector 20 of the exterior part 17 that forms thin, weak intensity with can connecting/disconnect, prevented the direction of sensor side connector 20, promptly to automobile inner side (joint cover side) bending at reinforcing section 83c and 83d.Therefore, prevent the disconnection of the signal wire 18 of Magnetic Sensor 15, and prevented the vacuum seal performance variation of exterior part 17 etc.Therefore, also improved reliability.
In addition, because the signal wire 18 of Magnetic Sensor 15 passes through exterior part 17 resin moulded moulding, so, strengthened the coupling part between Magnetic Sensor 15 and the signal wire 18.Therefore, further prevented disconnection.
With reference to Fig. 8 to 10, another embodiment of the present invention will be described.In these figure, same label represents and the same or corresponding element of the element of Fig. 1 to 7, and omitted it and specify.
The circular orientation face 17a that axially contacts with end face 2b of ring 2 is formed at exterior part 17 outside.In addition, the surface in contact 20a that contacts with the peripheral surface 2c of outer ring 2 is formed on the sensor side connector 20 laterally at automobile.
The peripheral surface 2c of the outer ring 2 that contacts with the surface of contact 20a of sensor side connector 20 is not limited to drum surface.For example, by only forming groove part and by sensor side connector 20 is fitted into this groove part in the part of the surface of contact 20a of sensor side connector 20 contact, it can be as during ring 2, be used for the guiding of circumferential position outside packoff 8 is fixed to.
According to said structure, in the sensor element of the outer rim side sealing ring 81 of forming packoff 8, the surface of contact 20a that contacts the peripheral surface 2c of outer ring 2 is formed at sensor side connector 20 places of extending in the external diameter direction, and is formed with the exterior part 17 that resin is made continuously.
Therefore, when the weight that is connected to sensor side connector 20 and electric wire distribution when the electric wire distribution is applied to the sensor side connector 20 at exterior part 17 places that are formed at the weak intensity that resin makes, because outer ring 2 becomes the reinforcement that is used for sensor side connector 20, so, prevented the sensor side connector 20 peripheral surface direction of ring outside, the bending of promptly arriving vehicle outer side (tyre side).Therefore, prevent the disconnection of the signal wire 18 of Magnetic Sensor 15, and prevented the vacuum seal performance variation of exterior part 17 that resin is made etc.Therefore, improved stability.
In addition, because the signal wire 18 of Magnetic Sensor 15 is molded by the exterior part 17 of resin making, so, strengthened the coupling part between Magnetic Sensor 15 and the signal wire 18.Therefore, further prevented disconnection.
Below will be according to Figure 11 explanation according to another embodiment of the present invention.With reference to Figure 11, be formed on the sensor side connector 20 that automobile is located laterally in this other embodiment of the present invention with the surface of contact 20a of the peripheral surface 2c contact that contacts outer ring 2.In this embodiment, because the surface of contact 20a that contacts with the peripheral surface 2c of outer ring 2 is additionally formed at sensor side connector 20 places, so, can prevent that 20 bendings of sensor side connector are close to automobile laterally.Therefore, sensor side connector 20 remains on automobile laterally or necessarily at automobile to the inside necessarily.Therefore, can prevent the disconnection of signal wire 18 grades.Therefore, improved reliability.
Should be just enough if reinforcing section only is formed at least a portion sensor side connector 20.Magnetic Sensor 15 can be the sensor of the rotational speed that only is used to detect the automobile axle.The composition that is used for packoff 8 enough is provided with the outer rim side sealing ring 81 of forming sensor element.The configuration of Magnetic Sensor or magnetic rings or formation are not provided with concrete restriction relatively.
The present invention can be applied to rolling bearing device, is used for rotatably supporting on car body the axle of automobile such as motor vehicle etc.
The present invention can also implement and can not break away from its theme tone or essential characteristic with other concrete form.It is property as an illustration rather than restrictive that the embodiment of above-mentioned explanation can be thought aspect all just.Therefore, scope of the present invention by appended claims with and in whole or in part combination limit, rather than limit by above stated specification.All are included in its protection domain in the implication of claim and the change in the equivalent scope.
Claims (27)
1. outer ring that is fixed to the rolling bearing device that is used for automobile, the sensor element of the rotation status of ring in being used to detect comprises:
Sealing ring;
Integral body is arranged on the sensor at described sealing ring place;
With resin moulded described sensor so that described sensor becomes as a whole exterior part with described sealing ring;
The one end is formed with described exterior part continuously, and its other end constitutes and can connect/disconnect the sensor side connector that is connected to electric wire distribution side-connector; And
Be connected at least one in described exterior part or the described sensor side connector and strengthen the reinforcement of described sensor side connector,
The other end of described exterior part forms the annular shape that extends radially outwardly,
One end integral body of described sensor side connector is formed at the other end of the described extension of described exterior part, and its other end forms the drum that the described other end than described exterior part extends radially outwardly more, and
Described reinforcement comprises annular reinforcer that first extension by the described outer rim side sealing ring that extends along the back side of the described other end of described exterior part constitutes and the semi-cylindrical shaped reinforcement that is made of second extension of the described outer rim side sealing ring that extends along the surface of the described other end of described sensor side connector.
2. sensor element according to claim 1 is characterized in that:
The other end of described exterior part extends radially outwardly, and
Described reinforcement is made of the extension of the described sealing ring that extends to the direction of the described other end of described exterior part.
3. sensor element according to claim 2 is characterized in that:
Described reinforcement covers the back side of described exterior part.
4. sensor element according to claim 1 is characterized in that:
The other end of described sensor side connector extends radially outwardly, and
Described reinforcement is made of the extension of the described sealing ring that extends to the direction of the described other end of described sensor side connector.
5. sensor element according to claim 4 is characterized in that:
Described reinforcement covers the surface of described sensor side connector.
6. sensor element according to claim 1 is characterized in that:
The surface in contact of the peripheral surface of the described outer ring of contact is formed at described sensor side connector.
7. sensor element according to claim 1 is characterized in that:
Described sensor is a Magnetic Sensor, and described sealing ring is the outer rim side sealing ring of being made up of nonmagnetic substance, and described Magnetic Sensor is arranged on the peripheral side of described outer rim side sealing ring,
Described Magnetic Sensor comprises two magnetic test sections that are provided with along circumference each interval one segment distance, and the signal of exporting from two described magnetic test sections is so that the phase difference between signals of each output is 90 degree.
8. water-tight equipment comprises:
The outer rim side sealing ring that is fixed to outer ring and forms by nonmagnetic substance;
The interior ring side seal ring of ring in being fixed to;
Be arranged on the Magnetic Sensor of the peripheral side of described outer rim side sealing ring;
With described Magnetic Sensor form together rotation detector and whole be arranged on described in the magnetic rings of material of the position of relative described Magnetic Sensor radially in the ring side seal ring;
With resin moulded described Magnetic Sensor so that described Magnetic Sensor becomes as a whole exterior part with described outer rim side sealing ring;
The one end is formed with described exterior part continuously, and its other end constitutes and can connect/disconnect the sensor side connector that is connected to electric wire distribution side-connector; And
Be connected at least one in described exterior part or the described sensor side connector and strengthen the reinforcement of described sensor side connector.
9. water-tight equipment according to claim 8 is characterized in that:
Described another distolateral extending radially outwardly of described exterior part, and
Described reinforcement is made of the extension of the described outer rim side sealing ring that the described other end to described exterior part extends.
10. water-tight equipment according to claim 9 is characterized in that:
Described reinforcement covers the back side of described exterior part.
11. water-tight equipment according to claim 8 is characterized in that:
The other end of described sensor side connector extends radially outwardly, and
Described reinforcement is made of the described extension of the described outer rim side sealing ring that the described other end to this sensor side connector extends.
12. water-tight equipment according to claim 11 is characterized in that:
Described reinforcement covers the surface of described sensor side connector.
13. water-tight equipment according to claim 8 is characterized in that:
The described other end of described exterior part forms the annular shape that extends radially outwardly,
It is distolateral that one end integral body of described sensor side connector is formed at another of described extension of described exterior part, and its other end forms the drum that the other end than described exterior part extends radially outwardly more,
Wherein said reinforcement comprises annular reinforcer that first extension by the described outer rim side sealing ring that extends along described another distolateral back side of described exterior part constitutes and the semi-cylindrical shaped reinforcement that is made of second extension of the described outer rim side sealing ring that extends along the surface of the described other end of described sensor side connector.
14. water-tight equipment according to claim 8 is characterized in that:
The surface in contact of the peripheral surface of the described outer ring of contact is formed at described sensor side connector place.
15. water-tight equipment according to claim 8 is characterized in that:
Described magnetic rings of material is with the magnetized pulser ring of preset space length along circle alternate N utmost point spare and S utmost point spare.
16. water-tight equipment according to claim 8 is characterized in that:
Described outer rim side sealing ring is included in axially extended first cylindrical portions may, and the second annular slab part that partly extends radially inwardly from inward flange at the axial direction of described first cylindrical portions may, described Magnetic Sensor covers and is formed at non-contacting mode integral body the peripheral surface side of described first cylindrical portions may by described exterior part, and described first cylindrical portions may is extended so that cover in described exterior part or the described sensor side connector at least one, and described reinforcement is made of the extension of described first cylindrical portions may; And
Described interior ring side seal ring is included in axial direction and extends also radially second cylindrical portions may of described relatively first cylindrical portions may, and extend radially outwardly and in the second annular slab part of described relatively first annular slab part of axial direction from outer edge part at the axial direction of described second cylindrical portions may, described magnetic rings of material is connected to the inside surface of described second annular slab part under the state of described relatively Magnetic Sensor radially.
17. water-tight equipment according to claim 8 is characterized in that:
Described magnetic rings of material is along magnetizing with preset space length in the structure of circle alternate N utmost point spare and S utmost point spare, described Magnetic Sensor comprises along the first and second magnetic test sections of circumference with preset distance each interval one segment distance, two magnetic test sections produce the rectangle square-wave signal of deviation 90 degree phase places each other, and described 1/4 of the described spacing that is spaced apart therebetween.
18. a rolling bearing device that is used for automobile comprises:
Be fixed to the outer ring of car body;
Interior ring with the concentric setting of described outer ring;
Rotatably arrange a plurality of rolling members that are arranged on described outer ring and described interior ring;
Be fixed to the outer rim side sealing ring of described outer ring;
Form water-tight equipment jointly with described outer rim side sealing ring and be fixed to described in the interior ring side seal ring of ring;
Integrally be arranged on the Magnetic Sensor of described outer rim side sealing ring;
With resin moulded described Magnetic Sensor so that described Magnetic Sensor becomes as a whole exterior part with described outer rim side sealing ring;
The sensor side connector, the one end is formed with described exterior part continuously, and its other end is connected to electric wire distribution side-connector with can connecting/disconnect;
Be connected at least one in described exterior part or the described sensor side connector and strengthen the reinforcement of described sensor side connector; And
Form rotation detector jointly with described Magnetic Sensor and be fixed to the described interior pulser ring that encircles the side of side seal ring.
19. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
One end of described exterior part extends radially outwardly with resin moulded described sensor and described outer rim side sealing ring and its other end, and
Described reinforcement is made up of so that cover this back side the extension of the described outer rim side sealing ring that extends to the back side of described exterior part.
20. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
The other end of described sensor side connector extends radially outwardly, and
Described reinforcement is made up of so that cover this surface the described extension of the described outer rim side sealing ring that extends to the surface of described sensor side connector.
21. the rolling bearing device that is used for automobile according to claim 20 is characterized in that:
The other end of described exterior part forms the annular shape that extends radially outwardly,
It is distolateral that one end of described sensor side connector is integrally formed in another of described extension of described exterior part, and its other end forms the drum that the other end than described exterior part extends radially outwardly more,
Described reinforcement comprises by first extension of the described outer rim side sealing ring that extends along the back side of the described other end of described exterior part and forming so that cover the annular reinforcer at this back side and be made up of so that cover this surperficial semi-cylindrical shaped reinforcement second extension along the described outer rim side sealing ring of the surface extension of the described other end of described sensor side connector.
22. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
The surface in contact of the peripheral surface of the described outer ring of contact is formed at described sensor side connector place.
23. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
Described exterior part comprises the end face that radially contacts described outer ring, thereby locatees the annular contact surface of described water-tight equipment.
24. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
Described sensor comprises two magnetic test sections that are provided with along circumference each interval one segment distance; And
Be set at magnetic test section of box lunch when producing first signal from the phase relation between the detection signal of two magnetic test sections, another magnetic test section produces the secondary signal with the phase place of phase deviation 90 degree of described first signal, and
Described pulser ring constitutes so that N utmost point spare and S utmost point spare magnetize with preset space length along the circle alternate setting, and is set at 1/4 of magnetization spacing λ from the phase differential between each output of two described magnetic test sections.
25. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
Described outer rim side sealing ring is included in first cylindrical portions may that axial direction extends, and the second annular slab part that partly extends radially inwardly from inward flange at the axial direction of described first cylindrical portions may, described Magnetic Sensor by described exterior part with resin moulded and integrally form with the peripheral surface of non-contacting mode and described first cylindrical portions may, and described first cylindrical portions may is extended so that cover in described exterior part or the described sensor side connector at least one, and described reinforcement is made up of the extension of described first cylindrical portions may; And
Described interior ring side seal ring is included in axial direction and extends also radially second cylindrical portions may of described relatively first cylindrical portions may, and extend radially outwardly and in the second annular slab part of described relatively first annular slab part of axial direction from outer edge part at the axial direction of described second cylindrical portions may, and described pulser ring is connected to the inside surface of described second annular slab part under the state of described relatively Magnetic Sensor radially.
26. the rolling bearing device that is used for automobile according to claim 18 is characterized in that:
One side of described car body comprises the cut-away portions that can pass described sensor side connector, and described sensor side connector ring outside described is fixed to and injects described cut-away portions under the state of car body.
27. the rolling bearing device that is used for automobile according to claim 18, it is characterized in that: ring comprises wheel hub in described, described wheel hub is provided with the flange portion that is used for connecting at automobile peripheral surface place laterally wheel, and the automobile that outwards is coupled to this wheel hub interior ring of cylindric small diameter portion to the inside, and in described ring side seal ring be fixed to described in ring.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33607/2003 | 2003-02-12 | ||
| JP33608/2003 | 2003-02-12 | ||
| JP2003033607A JP4258221B2 (en) | 2003-02-12 | 2003-02-12 | Sensor assembly, sealing device and rolling bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1751187A CN1751187A (en) | 2006-03-22 |
| CN100432674C true CN100432674C (en) | 2008-11-12 |
Family
ID=33112040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800045613A Expired - Fee Related CN100432674C (en) | 2003-02-12 | 2004-02-12 | Sensor assembly body, seal device, and rolling bearing device for motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4258221B2 (en) |
| CN (1) | CN100432674C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5214869B2 (en) * | 2006-10-30 | 2013-06-19 | Ｎｔｎ株式会社 | Rolling bearing with rotation sensor |
| US20170120885A1 (en) * | 2014-04-10 | 2017-05-04 | Volvo Do Brasil Veículos Ltda. | Abs sensor cleaning system |
| JP6582555B2 (en) * | 2015-05-28 | 2019-10-02 | 株式会社ジェイテクト | Method for assembling wheel bearing device |
| WO2017071702A1 (en) * | 2015-10-27 | 2017-05-04 | Schaeffler Technologies AG & Co. KG | Bearing assembly with incorporated electric line for providing multiple operating voltages |
| CN108006073B (en) * | 2016-10-27 | 2021-09-10 | 舍弗勒技术股份两合公司 | Method for producing a plain bearing and reinforcing insert therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649826U (en) * | 1992-11-24 | 1994-07-08 | エスケイエフ フランス | Bearing seal device and bearing device |
| CN1095142A (en) * | 1993-04-09 | 1994-11-16 | Snr轴承公司 | The bearing of information sensing apparatus is housed |
| JPH11118817A (en) * | 1997-10-20 | 1999-04-30 | Nippon Seiko Kk | Rolling bearing unit with rotating speed detector |
| WO2000075673A1 (en) * | 1999-06-04 | 2000-12-14 | S.N.R. Roulements | Bearing provided with an information sensor |
| US20020018606A1 (en) * | 2000-05-31 | 2002-02-14 | Koyo Seiko Co., Ltd. | Seal ring, sealing apparatus and bearing apparatus |
| JP2002327847A (en) * | 2001-05-07 | 2002-11-15 | Koyo Seiko Co Ltd | Seal ring, seal device, and bearing device |
-
2003
- 2003-02-12 JP JP2003033607A patent/JP4258221B2/en not_active Expired - Fee Related
-
2004
- 2004-02-12 CN CNB2004800045613A patent/CN100432674C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649826U (en) * | 1992-11-24 | 1994-07-08 | エスケイエフ フランス | Bearing seal device and bearing device |
| CN1095142A (en) * | 1993-04-09 | 1994-11-16 | Snr轴承公司 | The bearing of information sensing apparatus is housed |
| JPH11118817A (en) * | 1997-10-20 | 1999-04-30 | Nippon Seiko Kk | Rolling bearing unit with rotating speed detector |
| WO2000075673A1 (en) * | 1999-06-04 | 2000-12-14 | S.N.R. Roulements | Bearing provided with an information sensor |
| US20020018606A1 (en) * | 2000-05-31 | 2002-02-14 | Koyo Seiko Co., Ltd. | Seal ring, sealing apparatus and bearing apparatus |
| JP2002327847A (en) * | 2001-05-07 | 2002-11-15 | Koyo Seiko Co Ltd | Seal ring, seal device, and bearing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1751187A (en) | 2006-03-22 |
| JP4258221B2 (en) | 2009-04-30 |
| JP2004264055A (en) | 2004-09-24 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20081112 Termination date: 20140212 |