DE4428092A1 - Rolling bearing with sensor - Google Patents

Rolling bearing with sensor

Info

Publication number
DE4428092A1
DE4428092A1 DE4428092A DE4428092A DE4428092A1 DE 4428092 A1 DE4428092 A1 DE 4428092A1 DE 4428092 A DE4428092 A DE 4428092A DE 4428092 A DE4428092 A DE 4428092A DE 4428092 A1 DE4428092 A1 DE 4428092A1
Authority
DE
Germany
Prior art keywords
sensor
rolling bearing
sensor housing
connecting cable
cable
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.)
Withdrawn
Application number
DE4428092A
Other languages
German (de)
Inventor
Martin Grehn
Harald Merklein
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 Kugelfischer Georg Schaefer KGaA
Kugelfischer Georg Schaefer and Co
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 Kugelfischer Georg Schaefer KGaA, Kugelfischer Georg Schaefer and Co filed Critical FAG Kugelfischer Georg Schaefer KGaA
Priority to DE4428092A priority Critical patent/DE4428092A1/en
Priority to FR9508545A priority patent/FR2723621A1/en
Priority to IT95MI001627A priority patent/IT1277354B1/en
Priority to JP7228460A priority patent/JPH08189526A/en
Priority to GB9516205A priority patent/GB2292193A/en
Publication of DE4428092A1 publication Critical patent/DE4428092A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race

Landscapes

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

Abstract

In a rolling bearing with a sensor (7) to sense operating states, the sensor housing (8) is provided with at least one region (11) of lesser thickness, and the connecting cable (13) of the sensor is routed out of the thicker part of the housing in the circumferential direction. This ensures that the bearing can be used where installation space is constricted, and that the cable has no tight bending radii. The sensor housing may be integrated into the bearing or separate therefrom. <IMAGE>

Description

Die Erfindung betrifft ein Wälzlager mit Sensor nach dem Oberbegriff des Anspruchs 1.The invention relates to a rolling bearing with a sensor the preamble of claim 1.

Wälzlager mit Sensoren sind seit vielen Jahren bekannt (siehe z. B. EP-05 53 716 A1 oder DE-OS 19 11 513). Der Sensor ist in der Regel seitlich am feststehenden Lageraußenring angebracht. Das Kabel wird in axialer oder radialer Richtung vom Lager weggeführt. Manche Umgebungskonstruktionen lassen eine solche Kabelführung zu. Da jedoch der Einbauraum meist in radialer und axialer Richtung eng begrenzt ist, können solche Sensorlager in vielen Fällen nicht ohne weiteres eingesetzt werden. Bei derartigen Einbauräumen muß das Kabel stark abgeknickt werden, was leicht zu Scheuerstellen und zu Kabelbrüchen führt. Außerdem muß das Lager in einer bestimmten Position eingebaut werden, damit das Kabel weggeführt werden kann, ohne um die Welle herumgelegt werden zu müssen und damit Gefahr zu laufen, an der drehenden Welle zu streifen.Rolling bearings with sensors have been known for many years (see e.g. EP-05 53 716 A1 or DE-OS 19 11 513). The sensor is usually fixed on the side Bearing outer ring attached. The cable is in axial or radial direction away from the bearing. Some Surrounding structures leave such a cable routing to. However, since the installation space is mostly radial and the axial direction is narrowly limited, such In many cases, sensor bearings are not readily used will. With such installation spaces, the Cables are severely kinked, which easily causes chafing and leads to cable breaks. Besides that Bearings are installed in a specific position, so that the cable can be led away without the Wave to be put around and therefore danger too run to graze on the rotating shaft.

Bei axial weggeführten Kabeln besteht zusätzlich noch die Problematik, daß bei dieser Konstruktion in axialer Richtung kein Längenausgleich stattfinden kann.In the case of axially routed cables, there is also the problem that in this construction in axial Direction no length compensation can take place.

Es ist deshalb Aufgabe der Erfindung, ein Wälzlager mit Sensor der eingangs genannten Art so weiterzubilden, daß es auch bei radial und/oder axial engem Einbauraum universell einsetzbar ist, keine engen Biegeradien des Anschlußkabels aufweist, einen Kontakt zwischen Anschlußkabel und drehenden Umgebungsteilen sicher vermeidet und einen Längenausgleich des Anschlußkabels ermöglicht.It is therefore an object of the invention to provide a rolling bearing with sensors of the type mentioned in the introduction, that it is even with radially and / or axially narrow installation space is universally applicable, no tight bending radii of the connection cable has a contact between connection cable and rotating surrounding parts  safely avoids and length compensation of the connection cable enables.

Die Lösung der Aufgabe gelingt mit dem im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen. Vorteilhafte Ausgestaltungen sind in den Ansprüchen 2 bis 4 angegeben.The problem is solved with the characterizing Features specified in claim 1. Advantageous embodiments are in claims 2 to 4 specified.

Das Sensorgehäuse ist so ausgebildet, daß es über wenigstens ein Kreissegment hinweg eine geringere Breite aufweist. Das Anschlußkabel des Sensors wird in Umfangsrichtung des Wälzlagers aus dem breiteren Teil des Sensorgehäuses herausgeführt. Das Anschlußkabel muß nun nicht sofort radial oder axial weggeführt werden, sondern kann im schmaleren Sensorgehäusebereich im Bogen verlegt werden, ohne zu einer Verbreiterung des Gesamtsystems zu führen.The sensor housing is designed so that it at least a smaller segment across a circle having. The connection cable of the sensor is in the circumferential direction of the rolling bearing from the wider part of the sensor housing. The connecting cable does not now have to be led away radially or axially, but can in the narrower sensor housing area can be laid in the arch without widening of the overall system.

In einer bevorzugten Ausführung sind zusätzlich am Innendurchmesser des Sensorgehäuses im freiliegenden Kabelbereich axial ein Rand oder Randsegmente ausgebildet. Dadurch wird verhindert, daß der am Sensor entlang verlegte Kabelbogen an Teilen streift, die mit dem drehenden Lagerinnenring umlaufen. Wird das Anschlußkabel zunächst in einem Bogen um die Welle herumgeführt, so bewirkt die Umschlingungsreibung am Rand bzw. den Randsegmenten eine Zugentlastung des Kabelanschlusses am Sensor, was die Betriebssicherheit des Sensors zusätzlich erhöht. Auch können über den Kabelbogen axiale Verschiebungen zwischen Sensor und Umgebungskonstruktion bei der Montage und im Betrieb ausgeglichen werden.In a preferred embodiment, the inside diameter is additionally of the sensor housing in the exposed cable area axially formed an edge or edge segments. This prevents that along the sensor routed cable bend on parts that touches the rotating bearing inner ring. Will that Connection cable first in an arc around the shaft led around, so the wrap on Edge or the edge segments a strain relief of Cable connection to the sensor, which is operational safety of the sensor additionally increased. You can also use the Cable bend axial displacements between sensor and Surrounding construction during assembly and operation be balanced.

In einer weiteren Ausführung ist im breiteren Sensorgehäusebereich eine Aussparung vorgesehen, die ein wendelförmiges Aufwickeln des Anschlußkabels neben dem Lager ermöglicht, ohne zu einer Verbreiterung des Gesamtsystems zu führen. Zugentlastung und axiales Längenausgleichsvermögen werden hierdurch noch weiter verbessert.Another version is in the wider sensor housing area a recess is provided that a spiral winding of the connection cable next to the Bearing enables without widening the overall system  respectively. Strain relief and axial length compensation will continue to do so improved.

Die Erfindung soll an einem Ausführungsbeispiel erläutert werden.The invention will be explained using an exemplary embodiment will.

Fig. 1 zeigt ein erfindungsgemäßes Wälzlager im Schnitt. Fig. 1 shows a rolling bearing according to the invention in section.

Fig. 2 zeigt eine Seitenansicht eines erfindungsgemäßen Wälzlagers. Fig. 2 shows a side view of a rolling bearing according to the invention.

In Fig. 1 sind der Lagerinnenring mit 1, die Rollkörper mit 2, der Käfig mit 3, der Außenring mit 4, die Dichtung mit 5 und der Impulsgeber mit 6 bezeichnet. Gegenüber dem Impulsgeber 6 befindet sich ein Sensor 7, welcher im Sensorgehäuse 8 angeordnet ist.In Fig. 1, the bearing inner ring with 1 , the rolling element with 2 , the cage with 3 , the outer ring with 4 , the seal with 5 and the pulse generator with 6 . Opposite the pulse generator 6 is a sensor 7 which is arranged in the sensor housing 8 .

Das Sensorgehäuse 8 ist z. B. mit einem umlaufenden Vorsprung 9 in eine Nut 10 in der Außenringbohrung eingeschnappt.The sensor housing 8 is, for. B. snapped with a circumferential projection 9 in a groove 10 in the outer ring bore.

Wie aus Fig. 2 zu sehen ist, weist das Sensorgehäuse 8 über wenigstens einen Bereich 11 eine geringere Breite auf und besitzt eine Aussparung 12, in der das Anschlußkabel 13 verläuft. Das Anschlußkabel 13 wird in Lagerumfangsrichtung aus dem Sensorgehäuse 8 geführt und auf dem Rand 14 aufgewickelt, wobei ein Kontakt mit drehenden Umgebungsteilen vermieden wird.As can be seen from FIG. 2, the sensor housing 8 has a smaller width over at least one area 11 and has a recess 12 in which the connecting cable 13 runs. The connecting cable 13 is guided out of the sensor housing 8 in the circumferential direction of the bearing and wound up on the edge 14 , contact with rotating surrounding parts being avoided.

Claims (4)

1. Wälzlager mit Sensor zur Erfassung von Betriebszuständen des Wälzlagers, wobei der Sensor in einem separat neben dem Wälzlager angeordneten oder in das Wälzlager integrierten Sensorgehäuse angeordnet ist und die Sensorausgangssignale über ein Anschlußkabel zu einer Auswerteeinrichtung geleitet werden, dadurch gekennzeichnet, daß das Sensorgehäuse (8) über wenigstens einen Bereich (11) hinweg eine geringere Breite aufweist und das Anschlußkabel (13) des Sensors (7) in Umfangsrichtung des Wälzlagers aus dem breiteren Teil des Sensorgehäuses (8) herausgeführt ist.1. Rolling bearing with sensor for detecting operating states of the rolling bearing, the sensor being arranged in a sensor housing arranged separately next to the rolling bearing or integrated in the rolling bearing and the sensor output signals being passed via a connecting cable to an evaluation device, characterized in that the sensor housing ( 8 ) has a smaller width over at least one area ( 11 ) and the connecting cable ( 13 ) of the sensor ( 7 ) is led out of the wider part of the sensor housing ( 8 ) in the circumferential direction of the rolling bearing. 2. Wälzlager nach Anspruch 1, dadurch gekennzeichnet, daß das Anschlußkabel (13) im schmaleren Sensorbereich in einem Bogen verlegbar ist.2. Rolling bearing according to claim 1, characterized in that the connecting cable ( 13 ) can be laid in an arc in the narrower sensor area. 3. Wälzlager nach Anspruch 2, dadurch gekennzeichnet, daß das Sensorgehäuse (8) am Innendurchmesser axial einen Rand (14) oder Randsegmente aufweist, auf den das Anschlußkabel (13) aufwickelbar ist.3. Rolling bearing according to claim 2, characterized in that the sensor housing ( 8 ) on the inner diameter axially has an edge ( 14 ) or edge segments on which the connecting cable ( 13 ) can be wound. 4. Wälzlager nach Anspruch 3, dadurch gekennzeichnet, daß das Sensorgehäuse (8) in seinem breiten Bereich mit einer Aussparung (12) versehen ist, in der zusammen mit dem Rand (14) das Anschlußkabel (13) wendelförmig verlegbar ist.4. Rolling bearing according to claim 3, characterized in that the sensor housing ( 8 ) is provided in its wide area with a recess ( 12 ) in which, together with the edge ( 14 ), the connecting cable ( 13 ) can be laid helically.
DE4428092A 1994-08-09 1994-08-09 Rolling bearing with sensor Withdrawn DE4428092A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4428092A DE4428092A1 (en) 1994-08-09 1994-08-09 Rolling bearing with sensor
FR9508545A FR2723621A1 (en) 1994-08-09 1995-07-13 BEARING COMPRISING A SENSOR PROVIDED WITH A CONNECTION CABLE.
IT95MI001627A IT1277354B1 (en) 1994-08-09 1995-07-26 ROLLING BEARING WITH SENSOR
JP7228460A JPH08189526A (en) 1994-08-09 1995-08-03 Roller bearing with sensor
GB9516205A GB2292193A (en) 1994-08-09 1995-08-08 Rolling bearing with sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4428092A DE4428092A1 (en) 1994-08-09 1994-08-09 Rolling bearing with sensor

Publications (1)

Publication Number Publication Date
DE4428092A1 true DE4428092A1 (en) 1996-02-15

Family

ID=6525217

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4428092A Withdrawn DE4428092A1 (en) 1994-08-09 1994-08-09 Rolling bearing with sensor

Country Status (5)

Country Link
JP (1) JPH08189526A (en)
DE (1) DE4428092A1 (en)
FR (1) FR2723621A1 (en)
GB (1) GB2292193A (en)
IT (1) IT1277354B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535272A1 (en) * 1995-09-22 1997-04-10 Skf Gmbh Wheel bearing with sensor anti-locking system
EP0947724A3 (en) * 1998-04-02 2001-11-21 Robert Bosch Gmbh Electro-mechanical wheel brake device
DE102009021469A1 (en) 2009-05-15 2010-11-18 Schaeffler Technologies Gmbh & Co. Kg Sensor bearing unit for detecting e.g. bearing operating conditions, has sensor housing dimensioned such that radial and/or axial dimensions of unit are equal to that of roller bearing with identical bearing capacity
DE102018213672A1 (en) * 2018-08-14 2020-02-20 Thyssenkrupp Ag Connection structure for a roller bearing arrangement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303214B (en) * 1995-07-07 1998-01-21 Nsk Ltd Rolling bearing unit with rotary speed sensor
GB2312290B (en) * 1995-07-07 1998-01-21 Nsk Ltd Rolling bearing unit with rotary speed sensor
GB9615941D0 (en) * 1996-07-30 1996-09-11 Timken Co Combined bearing and sensor assembly
JP2000192949A (en) * 1998-10-21 2000-07-11 Nsk Ltd Rotary support device with rotating speed detecting device
FR2898949B1 (en) * 2006-03-27 2008-11-28 Skf Ab INSTRUMENT BEARING DEVICE.
CN105370737B (en) * 2015-12-23 2018-03-06 瓦房店轴承集团有限责任公司 Asymmetric combination formula sealing structure full-complement cylinder roller bearing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU605882B2 (en) * 1987-11-13 1991-01-24 Torrington Company, The Bearing with a magnetic field detector
US4915512A (en) * 1989-03-24 1990-04-10 The Torrington Company Thrust bearing with a magnetic field sensor
FR2649457B1 (en) * 1989-07-04 1991-10-11 Skf France INTEGRATED BEARING PROVIDED WITH A PULSE AND A SENSOR FOR FITTING A MOTOR VEHICLE WHEEL HUB
FR2671592B1 (en) * 1991-01-15 1993-06-18 Roulements Soc Nouvelle BEARING WITH INFORMATION SENSOR.
FR2706956B1 (en) * 1993-06-25 1995-08-18 Roulements Soc Nouvelle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535272A1 (en) * 1995-09-22 1997-04-10 Skf Gmbh Wheel bearing with sensor anti-locking system
EP0947724A3 (en) * 1998-04-02 2001-11-21 Robert Bosch Gmbh Electro-mechanical wheel brake device
DE102009021469A1 (en) 2009-05-15 2010-11-18 Schaeffler Technologies Gmbh & Co. Kg Sensor bearing unit for detecting e.g. bearing operating conditions, has sensor housing dimensioned such that radial and/or axial dimensions of unit are equal to that of roller bearing with identical bearing capacity
DE102018213672A1 (en) * 2018-08-14 2020-02-20 Thyssenkrupp Ag Connection structure for a roller bearing arrangement

Also Published As

Publication number Publication date
IT1277354B1 (en) 1997-11-10
FR2723621A1 (en) 1996-02-16
GB2292193A (en) 1996-02-14
ITMI951627A0 (en) 1995-07-26
JPH08189526A (en) 1996-07-23
ITMI951627A1 (en) 1997-01-26
GB9516205D0 (en) 1995-10-11

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Legal Events

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8141 Disposal/no request for examination