DE19636173A1 - Roller bearing with revolution rate meter - Google Patents
Roller bearing with revolution rate meterInfo
- Publication number
- DE19636173A1 DE19636173A1 DE1996136173 DE19636173A DE19636173A1 DE 19636173 A1 DE19636173 A1 DE 19636173A1 DE 1996136173 DE1996136173 DE 1996136173 DE 19636173 A DE19636173 A DE 19636173A DE 19636173 A1 DE19636173 A1 DE 19636173A1
- Authority
- DE
- Germany
- Prior art keywords
- sensor
- sealing
- bearing
- rolling bearing
- roller bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
Die Erfindung betrifft eine Wälzlagerung nach dem Oberbegriff des Anspruchs 1.The invention relates to a rolling bearing according to the preamble of Claim 1.
Bei vielen Wälzlagerungen besteht heute das Bedürfnis, sie mit einer Einrichtung zur Erfassung der Drehzahl zu versehen. So ist es Stand der Technik, Radlager von Kraftfahrzeugen mit einer Drehzahlerfassung auszurüsten, um z. B. aus den erhaltenen Signalen die Geschwindigkeit abzuleiten und diese zur Steuerung eines Antiblockiersystems heranzuziehen. Dabei besteht das Problem, daß auch niedrige Drehzahlen noch erfaßt werden sollen und der Sensor mit sehr kleinem Abstand zum Impulsgeberrad oder zu einer Kodierscheibe positioniert werden muß.With many roller bearings, there is a need today with them To provide device for detecting the speed. So it is state of the art Technology, wheel bearings of motor vehicles with speed detection equip to z. B. the speed from the signals received derive and this to control an anti-lock braking system to use. The problem is that even low speeds still to be detected and the sensor with a very small distance to Pulse wheel or must be positioned to a coding disk.
Ein Wälzlager mit in die Dichtung integrierter Impulsgeberscheibe ist aus der DE 37 35 070 A1 bekannt. Hierbei muß der Sensor jedoch mit geringem Luftspalt gegenüber der Dichtscheibe angeordnet sein, da die Signalstärke mit dem Quadrat der Entfernung abnimmt. Die Justierung des Sensors gegenüber der Impulsscheibe muß sehr genau erfolgen und Ist aufwendig und teuer. Zudem muß der Sensor und die Impulsgeberscheibe vor Schmutz geschützt sein, um Signalverfälschungen zu vermeiden.A roller bearing with an encoder disk integrated in the seal is out known from DE 37 35 070 A1. However, the sensor must be included small air gap with respect to the sealing washer, because the Signal strength decreases with the square of the distance. The adjustment of the sensor in relation to the pulse disk must be very precise and Is complex and expensive. In addition, the sensor and the Pulse encoder disk to be protected from dirt Avoid signal distortions.
Aus der DE-AS 22 18 047 ist es bekannt, neben dem Wälzlager eine Dichtung anzuordnen, so daß der Raum zwischen dem Impulsring und dem Sensor nur durch die Lagerteile und die Dichtung begrenzt und dicht abgeschlossen ist, wobei die Dichtung eine Öffnung aufweist, in der der Sensor lösbar befestigt ist.From DE-AS 22 18 047 it is known, in addition to the rolling bearing Arrange seal so that the space between the pulse ring and the sensor is limited and sealed only by the bearing parts and the seal is completed, the seal having an opening in which the Sensor is releasably attached.
Dabei ist nachteilig, daß solange der Sensor noch nicht montiert oder wieder demontiert ist, die Impulsgeberscheibe gegen Verschmutzung nicht geschützt ist. Dies ist insbesondere dann problematisch, wenn sogenannte aktive Impulsgeber eingesetzt werden. Unter aktiven Impulsgebern werden solche verstanden, die mit Magneten bestückt sind oder magnetisierte Bereiche aufweisen, wodurch eventuell in der Umgebung befindliche Eisenteilchen (kleine Späne) angezogen werden und sich dort festsetzen. Dadurch werden die Signale verfälscht. Auch hierbei muß die Justierung des Sensors sehr sorgfältig erfolgen.It is disadvantageous that as long as the sensor is not yet installed or is disassembled again, the pulse generator disc against contamination is not protected. This is particularly problematic when so-called active pulse generators are used. Among active Encoders are understood to be those that are equipped with magnets or have magnetized areas, possibly in the Surrounding iron particles (small chips) are attracted and get stuck there. This falsifies the signals. Also the sensor must be adjusted very carefully.
Es ist deshalb Aufgabe der Erfindung, eine Wälzlagerung der eingangs genannten Art so weiterzubilden, daß die Impulsgeberscheibe zuverlässig vor Verschmutzung geschützt ist und eine einfache und trotzdem genaue und wiederholbare Justierung des Sensors gegenüber der Impulsgeberscheibe ermöglicht wird.It is therefore an object of the invention to provide a rolling bearing at the beginning mentioned type so that the encoder disk reliably is protected from pollution and a simple yet accurate and repeatable adjustment of the sensor compared to the Pulse generator is enabled.
Die Lösung dieser Aufgabe gelingt mit den im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen. Eine vorteilhafte Weiterbildung ist in Anspruch 2 und 3 beschrieben.This problem is solved with the in the characterizing part of the Claim 1 specified features. An advantageous development is described in claims 2 and 3.
Durch die Ausbildung des Sensorträgers als Blechscheibe welche mit ausgestanzten Haltezungen für den Sensor versehen ist und anvulkanisierte Dichtlippen aufweist, die am Lagerring anliegen, und dadurch, daß der Bereich der Ausstanzung durch eine ebenfalls anvulkanisierte Dichtmembrane geschlossen ist, wird nicht nur die Aufgabe gelöst, sondern es wird zusätzlich eine wirkungsvolle verbesserte Abdichtung des gesamten Lagers erreicht. Dabei erfolgt das Anbringen und Justieren des Sensors immer einfach und kostengünstig. Die Abdichtung kann dabei sehr dünn ausgeführt werden, da im Betrieb die Membrane direkt am Sensorkopf elastisch anliegt und von diesem gestützt wird. Außerdem kann die Membrane die Toleranzen der Sensorbefestigung elastisch ausgleichen. Zwischen Membrane und Sensor entsteht dabei kein störender Luftspalt.By designing the sensor carrier as a sheet metal disc which with punched holding tabs for the sensor is provided and vulcanized sealing lips that abut the bearing ring, and in that the area of the punched out by a likewise vulcanized sealing membrane is closed, not only the Task solved, but it also becomes an effective one improved sealing of the entire bearing achieved. This is done Attaching and adjusting the sensor always easy and inexpensive. The seal can be made very thin because it is in operation the membrane rests directly against the sensor head and from it is supported. In addition, the membrane can tolerances Compensate the sensor attachment elastically. Between membrane and Sensor does not create an annoying air gap.
Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail using an exemplary embodiment.
Fig. 1 zeigt eine erfindungsgemäße Wälzlagerung in der Vorderansicht. Fig. 1 shows a roller bearing according to the invention in the front view.
Fig. 2 zeigt eine erfindungsgemäße Wälzlagerung in der Draufsicht, geschnitten nach C-C von Fig. 1 und eine Variante. Fig. 2 shows a roller bearing according to the invention in plan view, cut according to CC of Fig. 1 and a variant.
Fig. 3 zeigt eine erfindungsgemäße Wälzlagerung in der Seitenansicht, geschnitten nach A-A von Fig. 1. Fig. 3 shows a roller bearing according to the invention in side view, in section, according to AA of Fig. 1,.
Fig. 4 zeigt den Sensorträger geschnitten nach B-B von Fig. 1. FIG. 4 shows the sensor carrier cut according to BB from FIG. 1.
Fig. 5 zeigt eine mögliche Ausführung eines Sensorhalters. Fig. 5 shows a possible embodiment of a sensor holder.
In Fig. 1 ist das Wälzlager verdeckt, so daß nur der Sensorträger 1 zu sehen ist. Der scheibenförmige Sensorträger 1 ist an seinem Umfang mit einer anvulkanisierten Dichtlippe 2 versehen. Im oberen Bereich sind Haltezungen 3 angeordnet, die z. B. durch Ausstanzen und Umbördeln erzeugt sind. Die Ausstanzung ist durch eine anvulkanisierte Dichtmembrane 4 geschlossen.In Fig. 1, the rolling bearing is covered, so that only the sensor carrier 1 can be seen. The disk-shaped sensor carrier 1 is provided on its periphery with a vulcanized sealing lip 2 . In the upper area holding tongues 3 are arranged, the z. B. are generated by punching and flanging. The punching is closed by a vulcanized sealing membrane 4 .
Wie in Fig. 2 und Fig. 3 deutlich zu sehen, liegt die Dichtlippe 2 am Außenring 5 des Wälzlagers an. Zwischen dem Außenring 5 und dem Innenring 6 des Wälzlagers sind Wälzkörper 7 angeordnet, wobei eine Lagerdichtung 8 die gleichzeitig als Impulsgeber wirkt, das Wälzlager abdichtet.As clearly shown in Fig. 2 and Fig. 3, the rolling bearing is the sealing lip 2 on the outer ring 5. Rolling bodies 7 are arranged between the outer ring 5 and the inner ring 6 of the rolling bearing, a bearing seal 8 which also acts as a pulse generator, seals the rolling bearing.
In Fig. 4 sind die Haltezungen 3 und die Dichtmembrane 4 sowie die Dichtlippen 2 des Sensorträgers 1 nochmals dargestellt.In FIG. 4, the holding tongues 3 and the sealing membrane 4 and the sealing lips 2 of the sensor carrier 1 are shown again.
Entsprechend Fig. 5 ist der Sensorhalter 9 mit dem Sensor 10 so ausgebildet, daß er mit seinen Haltenasen 11 die Haltezungen 3 hintergreifen kann und so den Sensor 10 am Sensorträger 1 in einer gegenüber der Lagerdichtung 8 genauen Position festlegt. Der Sensor 10 kann die vom Impulsgeber ausgehenden Signale (Magnetfeldänderung, Induktionswirkung, Telemetriesignale o. ä.) exakt und störungsfrei aufnehmen und über das Kabel 12 einer Signalverarbeitungseinheit zuführen.According to FIG. 5, the sensor holder 9 is formed with the sensor 10 so that it can engage behind the retaining tongues 3 with its holding lugs 11, and so the sensor 10 determines in a relation to the bearing seal 8 precise position on the sensor substrate 1. The sensor 10 can pick up the signals emanating from the pulse generator (magnetic field change, induction effect, telemetry signals or the like) exactly and without interference and feed them via the cable 12 to a signal processing unit.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996136173 DE19636173B4 (en) | 1996-09-06 | 1996-09-06 | Rolling bearing with speed measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996136173 DE19636173B4 (en) | 1996-09-06 | 1996-09-06 | Rolling bearing with speed measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19636173A1 true DE19636173A1 (en) | 1998-03-12 |
DE19636173B4 DE19636173B4 (en) | 2009-01-02 |
Family
ID=7804788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996136173 Expired - Fee Related DE19636173B4 (en) | 1996-09-06 | 1996-09-06 | Rolling bearing with speed measuring device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19636173B4 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0983924A1 (en) * | 1998-09-03 | 2000-03-08 | Skf France | Hand wheel device |
NL1015723C2 (en) * | 2000-07-14 | 2002-01-15 | Skf Eng & Res Centre Bv | Electric steering system with mechanical reserve. |
DE19644744C2 (en) * | 1996-10-28 | 2002-05-02 | Fag Automobiltechnik Ag | Speed measuring device for wheel bearings |
DE10308194A1 (en) * | 2003-02-25 | 2004-09-02 | Ltn Servotechnik Gmbh | Angle measuring device and its use |
EP1746425A1 (en) * | 2005-07-18 | 2007-01-24 | Aktiebolaget SKF | Sealing device for rolling bearings |
DE102008006605A1 (en) * | 2008-01-30 | 2009-08-27 | Ford Global Technologies, LLC, Dearborn | Bearing cap i.e. wheel bearing cap, has retainer arranged in cover wall so that sensor element with middle axis arranged parallel to cap's middle axis, and base wall designed as separate component and completely arranged within hollow space |
DE102011014545A1 (en) * | 2011-01-11 | 2012-07-12 | Schaeffler Technologies Gmbh & Co. Kg | Roller bearing has sensor device with sensor element arranged in torque-proof manner and encoder ring rotatably arranged opposite to sensor element |
DE202014100116U1 (en) | 2014-01-10 | 2014-02-17 | Ford Global Technologies, Llc | bearing cap |
DE102012217030A1 (en) * | 2012-09-21 | 2014-03-27 | Schaeffler Technologies Gmbh & Co. Kg | Bearing cover, in particular ABS sensor cap |
DE102012019505A1 (en) * | 2012-10-05 | 2014-04-10 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Fastening system for wheel bearing device of vehicle, has sensor device and protecting cap element for fastening to wheel bearing device, where protecting cap element has receiver |
DE102013208314A1 (en) * | 2013-05-07 | 2014-11-13 | Schaeffler Technologies Gmbh & Co. Kg | Wheel bearing with magnetic field sensor |
CN104776122A (en) * | 2014-01-10 | 2015-07-15 | 福特全球技术公司 | Bearing cap |
DE102014200274A1 (en) | 2014-01-10 | 2015-07-16 | Ford Global Technologies, Llc | bearing cap |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE348839B (en) * | 1971-04-21 | 1972-09-11 | Skf Ind Trading & Dev | |
FR2574501B1 (en) * | 1984-12-11 | 1989-11-10 | Roulements Soc Nouvelle | INFORMATION SENSOR BEARING |
DE3735070A1 (en) * | 1987-10-16 | 1989-04-27 | Kugelfischer G Schaefer & Co | ROLLER BEARING WITH IMPULSE RING FOR SPEED MEASUREMENT |
FR2678329B1 (en) * | 1991-06-28 | 1993-09-03 | Roulements Soc Nouvelle | SEALING MOUNT FOR INFORMATION SENSOR SUITABLE FOR A SEALED BEARING. |
-
1996
- 1996-09-06 DE DE1996136173 patent/DE19636173B4/en not_active Expired - Fee Related
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19644744C2 (en) * | 1996-10-28 | 2002-05-02 | Fag Automobiltechnik Ag | Speed measuring device for wheel bearings |
EP0983924A1 (en) * | 1998-09-03 | 2000-03-08 | Skf France | Hand wheel device |
FR2782970A1 (en) * | 1998-09-03 | 2000-03-10 | Skf France | STEERING WHEEL DEVICE |
NL1015723C2 (en) * | 2000-07-14 | 2002-01-15 | Skf Eng & Res Centre Bv | Electric steering system with mechanical reserve. |
WO2002006109A1 (en) * | 2000-07-14 | 2002-01-24 | Skf Engineering & Research Centre B.V. | Electric steering system with mechanical back-up device |
US6932184B2 (en) | 2000-07-14 | 2005-08-23 | Skf Engineering And Research Centre B.V. | Electric steering system with mechanical back-up device |
DE10308194A1 (en) * | 2003-02-25 | 2004-09-02 | Ltn Servotechnik Gmbh | Angle measuring device and its use |
EP1746425A1 (en) * | 2005-07-18 | 2007-01-24 | Aktiebolaget SKF | Sealing device for rolling bearings |
US7497629B2 (en) | 2005-07-18 | 2009-03-03 | Aktiebolaget Skf | Sealing device for a rolling contact bearing |
DE102008006605B4 (en) * | 2008-01-30 | 2014-11-20 | Ford Global Technologies, Llc | bearing cap |
DE102008006605A1 (en) * | 2008-01-30 | 2009-08-27 | Ford Global Technologies, LLC, Dearborn | Bearing cap i.e. wheel bearing cap, has retainer arranged in cover wall so that sensor element with middle axis arranged parallel to cap's middle axis, and base wall designed as separate component and completely arranged within hollow space |
DE102011014545A1 (en) * | 2011-01-11 | 2012-07-12 | Schaeffler Technologies Gmbh & Co. Kg | Roller bearing has sensor device with sensor element arranged in torque-proof manner and encoder ring rotatably arranged opposite to sensor element |
DE102012217030A1 (en) * | 2012-09-21 | 2014-03-27 | Schaeffler Technologies Gmbh & Co. Kg | Bearing cover, in particular ABS sensor cap |
DE102012019505A1 (en) * | 2012-10-05 | 2014-04-10 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Fastening system for wheel bearing device of vehicle, has sensor device and protecting cap element for fastening to wheel bearing device, where protecting cap element has receiver |
DE102013208314A1 (en) * | 2013-05-07 | 2014-11-13 | Schaeffler Technologies Gmbh & Co. Kg | Wheel bearing with magnetic field sensor |
DE202014100116U1 (en) | 2014-01-10 | 2014-02-17 | Ford Global Technologies, Llc | bearing cap |
CN104776122A (en) * | 2014-01-10 | 2015-07-15 | 福特全球技术公司 | Bearing cap |
DE102014200274A1 (en) | 2014-01-10 | 2015-07-16 | Ford Global Technologies, Llc | bearing cap |
DE102014200273A1 (en) | 2014-01-10 | 2015-07-16 | Ford Global Technologies, Llc | bearing cap |
US9568048B2 (en) | 2014-01-10 | 2017-02-14 | Ford Global Technologies, Llc | Bearing cap |
DE102014200273B4 (en) | 2014-01-10 | 2018-04-19 | Ford Global Technologies, Llc | bearing cap |
CN104776122B (en) * | 2014-01-10 | 2019-05-14 | 福特全球技术公司 | Bearing cap |
Also Published As
Publication number | Publication date |
---|---|
DE19636173B4 (en) | 2009-01-02 |
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Legal Events
Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: FAG KUGELFISCHER GEORG SCHAEFER AG, 97421 SCHWEINFURT |
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8127 | New person/name/address of the applicant |
Owner name: FAG KUGELFISCHER AG & CO. KG, 97421 SCHWEINFURT, D |
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8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: FAG KUGELFISCHER AG, 97421 SCHWEINFURT, DE |
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8127 | New person/name/address of the applicant |
Owner name: FAG KUGELFISCHER AG & CO. OHG, 97421 SCHWEINFURT, |
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8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER KG, 91074 HERZOGENAURACH, DE |
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8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110401 |