DE9418459U1 - Rolling bearing with speed sensor - Google Patents

Rolling bearing with speed sensor

Info

Publication number
DE9418459U1
DE9418459U1 DE9418459U DE9418459U DE9418459U1 DE 9418459 U1 DE9418459 U1 DE 9418459U1 DE 9418459 U DE9418459 U DE 9418459U DE 9418459 U DE9418459 U DE 9418459U DE 9418459 U1 DE9418459 U1 DE 9418459U1
Authority
DE
Germany
Prior art keywords
ring
rolling bearing
bearing
sensor
speed sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE9418459U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHO Holding GmbH and Co KG
Original Assignee
FAG OEM und Handel AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FAG OEM und Handel AG filed Critical FAG OEM und Handel AG
Priority to DE9418459U priority Critical patent/DE9418459U1/en
Publication of DE9418459U1 publication Critical patent/DE9418459U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/80—Labyrinth sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolling Contact Bearings (AREA)

Description

Wälzlager mit DrehzahlsensorRolling bearing with speed sensor

Die Neuerung betrifft ein Wälzlager mit Drehzahlsensor nach dem Oberbegriff des Anspruchs 1.The innovation relates to a rolling bearing with a speed sensor according to the preamble of claim 1.

Derartige Wälzlager sind zum Beispiel aus der EP 0 327 434 Al bekannt. Dabei wird der Sensor seitlich am feststehenden Lageraußenring angebracht und auf dem sich drehenden Innenring ist ein Impulsring befestigt. Zwischen Sensor und Impulsring besteht ein Spalt.Such rolling bearings are known, for example, from EP 0 327 434 Al. The sensor is attached to the side of the stationary bearing outer ring and a pulse ring is attached to the rotating inner ring. There is a gap between the sensor and the pulse ring.

Über diesen Spalt kann das Wälzlagerfett aus dem Lager austreten. Um dies zu verhindern, wird oft eine Gummi lippendichtung verwendet. Diese hat jedoch den Nachteil, daß sie das Lagerreibmoment erhöht, kostspielig ist und im Betrieb verschleißt.The rolling bearing grease can escape from the bearing through this gap. To prevent this, a rubber lip seal is often used. However, this has the disadvantage that it increases the bearing friction torque, is expensive and wears out during operation.

Es ist deshalb Aufgabe der Neuerung, eine einfache, wirksame, reibungsfreie und kostengünstige Abdichtung für ein Wälzlager mit Drehzahlsensor zu schaffen.The aim of the innovation is therefore to create a simple, effective, friction-free and cost-effective seal for a rolling bearing with a speed sensor.

Die Lösung gelingt mit den im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen. Dadurch, daß der Impulsring am Umfang einen Rand aufweist, der bei stillstehendem Lagerinnenring (Ruhezustand) ein einfaches Labyrinth bildet und bei Drehung des Lagerinnenrings zusätzlich das Fett radial vom Dichtspalt weg ins Lagerinnere abschleudert, wird mit einfachen Mitteln ohne zusätzliche Teile ein funktionssicheres und kostengünstiges Lager geschaffen. Der Rand kann dabei zum Beispiel eckig, gerundet oder rampenförmig ausgebildet sein. Dadurch, daß der Impulsring durch eine besondere Formgebung zusätzlich die Dichtfunktion über-The solution is achieved with the features specified in the characterizing part of claim 1. Because the impulse ring has an edge on the circumference, which forms a simple labyrinth when the bearing inner ring is stationary (resting state) and, when the bearing inner ring rotates, also throws the grease radially away from the sealing gap into the bearing interior, a functionally reliable and cost-effective bearing is created using simple means without additional parts. The edge can be square, rounded or ramp-shaped, for example. Because the impulse ring additionally performs the sealing function through a special shape,

nimmt, wird eine zuverlässige und kostengünstige Abdichtung erzielt.A reliable and cost-effective seal is achieved.

Die Neuerung soll an einem Ausführungsbeispiel näher erläutert werden. Es zeigt:The innovation will be explained in more detail using an example. It shows:

Figur 1 ein neuerungsgemäßes Wälzlager mit Drehzahlsensor und Impulsring im Querschnitt.Figure 1 shows a cross-section of an innovative rolling bearing with speed sensor and pulse ring.

Figur 2 bis 5 verschiedene Ausbildungen des Impulsringrandes .Figures 2 to 5 show different designs of the impulse ring edge.

Der Innenring ist dabei mit 1 und der Außenring mit 2 bezeichnet. Dazwischen sind die Kugeln 3 angeordnet, welche von einem Käfig 4 auf Abstand gehalten werden. Eine Dichtung 5 verhindert auf der einen Lagerseite das Eintreten von Schmutz und das Austreten von Fett. Auf der anderen Lagerseite ist am Außenring das Sensorgehäuse 6 angeordnet, welches mit einem Vorsprung 7 versehen ist, der in die für die Dichtung vorgesehene Nut einschnappt. Am Lagerinnenring 1 ist der Impulsring 8 zum Beispiel mit Preßsitz auf den Lagerinnenring geschoben. Er weist einen Rand 9 auf, der als Schleuderscheibe bzw. Labyrinthdichtung das Fett am Austritt aus dem Lager hindert. Der Impulsring 8 erstreckt sich axial in den vom Sensorgehäuse 6 umgebenden Bereich, so daß er dem Sensor mit seinen impulsgebenden Ausnehmungen 10 gegenüberliegt. In den Figuren 2, 3, 4 und 5 sind verschiedene Ausbildungen des Randes des Impulsringes dargestellt. The inner ring is designated 1 and the outer ring 2. The balls 3 are arranged between them and are kept at a distance by a cage 4. A seal 5 prevents dirt from entering and grease from escaping on one side of the bearing. On the other side of the bearing, the sensor housing 6 is arranged on the outer ring and is provided with a projection 7 that snaps into the groove provided for the seal. The pulse ring 8 is pushed onto the bearing inner ring 1, for example with a press fit. It has an edge 9 which acts as a centrifugal disk or labyrinth seal and prevents the grease from escaping from the bearing. The pulse ring 8 extends axially into the area surrounded by the sensor housing 6 so that it is opposite the sensor with its pulse-generating recesses 10. Various designs of the edge of the pulse ring are shown in Figures 2, 3, 4 and 5.

Claims (3)

1. Wälzlager mit Drehzahlsensor, wobei der Sensor seitlich am feststehenden Lagerring angeordnet ist und auf dem drehenden Lagerring ein Impulsring befestigt ist, der dem Sensor gegenübersteht, dadurch gekennzeichnet, daß der Impulsring (8) im Lagerbereich am Umfang mit einem sich radial erstreckenden geschlossenen Rand (9) versehen ist, dessen Außenmaß größer ist als das Innenmaß des Sensorgehäuses (6).1. Rolling bearing with speed sensor, wherein the sensor is arranged laterally on the fixed bearing ring and a pulse ring is fastened to the rotating bearing ring, which pulse ring is opposite the sensor, characterized in that the pulse ring (8) is provided on the circumference in the bearing area with a radially extending closed edge (9), the outer dimension of which is larger than the inner dimension of the sensor housing (6). 2. Wälzlager nach Anspruch 1, dadurch gekennzeichnet, daß der Rand (9) eckig, gerundet oder rampenförmig ausgebildet ist.2. Rolling bearing according to claim 1, characterized in that the edge (9) is angular, rounded or ramp-shaped. 3. Wälzlager nach Anspruch 1, dadurch gekennzeichnet, daß der Rand (9) zusammen mit dem Sensorgehäuse (6) einen Labyrinthdichtspalt bildet und als Schleuderscheibe wirkt.3. Rolling bearing according to claim 1, characterized in that the edge (9) together with the sensor housing (6) forms a labyrinth sealing gap and acts as a centrifugal disk.
DE9418459U 1994-11-18 1994-11-18 Rolling bearing with speed sensor Expired - Lifetime DE9418459U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9418459U DE9418459U1 (en) 1994-11-18 1994-11-18 Rolling bearing with speed sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9418459U DE9418459U1 (en) 1994-11-18 1994-11-18 Rolling bearing with speed sensor

Publications (1)

Publication Number Publication Date
DE9418459U1 true DE9418459U1 (en) 1995-02-02

Family

ID=6916276

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9418459U Expired - Lifetime DE9418459U1 (en) 1994-11-18 1994-11-18 Rolling bearing with speed sensor

Country Status (1)

Country Link
DE (1) DE9418459U1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640895A1 (en) * 1996-10-04 1998-04-09 Schaeffler Waelzlager Ohg Rolling bearings with an integrated speed measuring device
FR2835297A1 (en) * 2002-01-29 2003-08-01 Skf Ab FIXING SUPPORT, ROLLING BEARING AND ASSEMBLY METHOD THEREFOR
US7033080B2 (en) 2001-02-02 2006-04-25 Aktiebolaget Skf Device for detecting the rotation speed of a rotating element
US7275462B2 (en) 2002-06-20 2007-10-02 Aktiebolaget Skf Tensioning device for prestressing a rod, and related tensioning method
US7367714B2 (en) 2003-02-26 2008-05-06 Aktiebolaget Skf Instrumented rolling bearing
US7429133B2 (en) 2002-07-02 2008-09-30 Aktiebolaget Skf Instrumented antifriction bearing and electrical motor equipped therewith
US7699732B2 (en) 2001-11-13 2010-04-20 Aktiebolaget Skf Instrumented take-up unit and related control method
US7758459B2 (en) 2006-10-03 2010-07-20 Aktiebolaget Skf Tensioning roller device
US7766140B2 (en) 2003-07-28 2010-08-03 Skf France Freewheel bearing device with torque limiter
US7811005B2 (en) 2001-09-12 2010-10-12 Aktiebolaget Skf Thrust bearing device for a vehicle suspension
US7878714B2 (en) 2003-10-14 2011-02-01 Aktiebolaget Skf Clutch release bearing device
US8172056B2 (en) 2007-02-27 2012-05-08 Aktiebolaget Skf Disengageable pulley device
US8226301B2 (en) 2006-06-26 2012-07-24 Aktiebolaget Skf Suspension thrust bearing device and strut
DE102017125911A1 (en) 2017-11-07 2018-09-13 Schaeffler Technologies AG & Co. KG Encoder ring for an integrable in a rolling bearing assembly sensor device and rolling bearing assembly

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640895A1 (en) * 1996-10-04 1998-04-09 Schaeffler Waelzlager Ohg Rolling bearings with an integrated speed measuring device
DE19640895B4 (en) * 1996-10-04 2007-07-12 Schaeffler Kg Rolling bearing with an integrated speed measuring device
US7033080B2 (en) 2001-02-02 2006-04-25 Aktiebolaget Skf Device for detecting the rotation speed of a rotating element
US7811005B2 (en) 2001-09-12 2010-10-12 Aktiebolaget Skf Thrust bearing device for a vehicle suspension
US7699732B2 (en) 2001-11-13 2010-04-20 Aktiebolaget Skf Instrumented take-up unit and related control method
WO2003065051A1 (en) * 2002-01-29 2003-08-07 Aktiebolaget Skf Mounting bracket, roller bearing and corresponding assembly method
US7290351B2 (en) 2002-01-29 2007-11-06 Aktiebolaget Skf Mounting bracket, rolling bearing and corresponding assembly method
FR2835297A1 (en) * 2002-01-29 2003-08-01 Skf Ab FIXING SUPPORT, ROLLING BEARING AND ASSEMBLY METHOD THEREFOR
US7275462B2 (en) 2002-06-20 2007-10-02 Aktiebolaget Skf Tensioning device for prestressing a rod, and related tensioning method
US7429133B2 (en) 2002-07-02 2008-09-30 Aktiebolaget Skf Instrumented antifriction bearing and electrical motor equipped therewith
US7367714B2 (en) 2003-02-26 2008-05-06 Aktiebolaget Skf Instrumented rolling bearing
US8123013B2 (en) 2003-07-28 2012-02-28 Skf France Freewheel bearing device with torque limiter
US7766140B2 (en) 2003-07-28 2010-08-03 Skf France Freewheel bearing device with torque limiter
US7878714B2 (en) 2003-10-14 2011-02-01 Aktiebolaget Skf Clutch release bearing device
US8226301B2 (en) 2006-06-26 2012-07-24 Aktiebolaget Skf Suspension thrust bearing device and strut
US7758459B2 (en) 2006-10-03 2010-07-20 Aktiebolaget Skf Tensioning roller device
US8172056B2 (en) 2007-02-27 2012-05-08 Aktiebolaget Skf Disengageable pulley device
DE102017125911A1 (en) 2017-11-07 2018-09-13 Schaeffler Technologies AG & Co. KG Encoder ring for an integrable in a rolling bearing assembly sensor device and rolling bearing assembly

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