WO2014187449A1 - Rolling element bearing comprising a rotational speed detection device - Google Patents

Rolling element bearing comprising a rotational speed detection device Download PDF

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Publication number
WO2014187449A1
WO2014187449A1 PCT/DE2014/200081 DE2014200081W WO2014187449A1 WO 2014187449 A1 WO2014187449 A1 WO 2014187449A1 DE 2014200081 W DE2014200081 W DE 2014200081W WO 2014187449 A1 WO2014187449 A1 WO 2014187449A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer ring
ring
speed sensor
axially
rolling bearing
Prior art date
Application number
PCT/DE2014/200081
Other languages
German (de)
French (fr)
Inventor
Andreas Kaiser
Christian Mock
Frank Eichelmann
Javed Shabbir SHAIKH
Jonas Lang
Ralf Heiss
Original Assignee
Schaeffler Technologies Gmbh & Co. Kg
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 Schaeffler Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2014187449A1 publication Critical patent/WO2014187449A1/en

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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
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Definitions

  • the invention relates to a rolling bearing, in particular wheel bearing with an outer ring, an inner ring and between these rolling rolling elements, a outer ring receiving support member, a fixed to the outer ring, the rolling bearing on one side tightly closed lid and a speed detection device for detecting a speed difference between Inner ring and outer ring with a mounted on the inner ring encoder ring and an axially adjacent to the encoder ring outside the lid arranged speed sensor.
  • Rolling in particular wheel bearings have single-row or double row arranged rolling bearing rows with rolling elements, which roll between an outer ring and an inner ring.
  • the inner ring can be divided.
  • the outer ring is fixedly received on a support member, such as a wheel, while the inner ring is rotatable, for example, forms a hub or is added to this.
  • an encoder ring is rotatably disposed on the inner ring, the angle-dependent excitation pulses arranged at a rotation of the inner ring of a fixed Speed sensor can be detected.
  • a lid may be provided for sealing the rolling bearing, which is accommodated on the outer ring and covers the free area of the rolling bearing. The speed sensor must be positioned so that it can detect the exciter surfaces of the encoder ring with its sensitive area outside the cover.
  • DE 10 201 1 014 545 A1 discloses a rolling bearing is known in which the speed sensor between the outer ring and inner ring is arranged. A lid is not provided.
  • DE 10 201 1 004 422 A1 shows a rolling bearing with a cover arranged on the outer ring.
  • the object of the invention is the further development of such roller bearings with a built-in rolling bearing speed sensor, in particular for achieving a simple production and an axial securing of the lid.
  • the proposed rolling bearing is preferably designed as a wheel bearing and includes an outer ring, a one-piece or two-piece inner ring and between these rolling on one or two rows of rolling elements.
  • the outer ring is received on a carrier part, for example a wheel carrier of a motor vehicle.
  • the rolling bearing on one side tightly sealing lid is provided, which prevents entry of dirt and water and the escape of lubricant of the bearing.
  • a rotational speed detection device detects rotational characteristics, for example a rotational speed difference, rotational angle, rotational speed and / or rotational accelerations between inner ring and outer ring.
  • an encoder ring is received on the inner ring, for example pressed on.
  • excitation elements such as magnetic see arranged elements that generate in a rotation of the inner ring on an axially adjacent to the encoder ring outside the lid arranged speed sensor incremental signals from which the rotational characteristics of the inner ring and thus a wheel attached to a hub of the inner hub can be determined.
  • the cover has an axially formed in the direction of the rolling indentation, in which the speed sensor is introduced, which is axially secured between the outer ring and the support member.
  • the axial securing of the rotational speed sensor at the same time the cover is axially secured so that it remains fixed axially in its position even at Ü overpressure.
  • the speed sensor and the cover can be taken together inexpensively and easily in the rolling bearing, without providing additional fasteners.
  • a set position of the speed sensor is retained to the encoder ring, even if the wheel bearing is due to tolerances, is displaced by corresponding adjustment operations, occurring during driving displacements and the like with respect to the support member.
  • a ring-shaped housing of the rotational speed sensor can have one or more sensitive surfaces distributed over the circumference and facing the encoder ring.
  • the support part has an opening, for example a bore, in the inner circumference of which an axial projection of the outer ring is received in a centered manner, for example pressed in.
  • the opening is formed stepwise to form a subsequent to the axial approach, radially inwardly expanded paragraph, wherein a radially expanded portion of the speed sensor between the axial projection of the outer ring and the shoulder of the support member is arranged.
  • the radially widened portion may be, for example, an annular board.
  • one or more distributed over the circumference radially expanded tabs, latching hooks and the like may be provided.
  • the radially expanded portion may be formed elastically and biased by the shoulder axially against the lid.
  • a radially enlarged cover portion axially adjacent to the portion may be radially expanded, so that lid portion and portion together between the axial extension of the outer ring and the shoulder of the support member are axially braced.
  • an axial load of the housing of the speed sensor can be reduced.
  • the lid can be applied axially to a stop of the outer ring and the rotational speed sensor can be axially biased by the carrier part against the lid.
  • the cover can be supported radially outside the indentation on an end face of the outer ring, it being possible for the axial abutment against the stop of the outer ring to be provided on one of the inner circumference of the axial extension of the outer ring.
  • the speed sensor can be axially supported by means of a shim, a spacer, a Seegerings and / or the like on the radially inwardly extended shoulder of the support member.
  • a compensation disk can be inserted against the radially inwardly widened shoulder in order to produce a radial and / or axial compensation between the rotational speed sensor and the shoulder.
  • the rotational speed sensor can be secured axially by means of a collar ring on the shoulder
  • the rotational speed sensor can be taken captive to a joining of the support member to the outer ring.
  • the speed sensor may be captively received on an axial projection of the outer ring by means of a latching connection.
  • Figure 1 shows a rolling bearing with a secured to a support member by means of an elastic lip speed sensor in partial section
  • Figure 2 shows a rolling bearing with an axially secured to the support member
  • FIG. 3 shows a rolling bearing similar to the rolling bearing of FIG. 1 with a rotational speed sensor axially locked on the carrier part
  • FIG. 4 shows a partial view of a roller bearing with a rotational speed sensor secured axially on the carrier part and captively held on the outer ring
  • Figure 5 shows a rolling bearing with axially between the outer ring and the
  • Figure 6 shows a rolling bearing with a axially secured by a Seegerings against the support member speed sensor in partial section.
  • the rolling bearing 1 shows a partial section of the arranged around the axis of rotation d designed as a wheel bearing bearing 1 with the outer ring 2 and the inner ring 3 and the rolling between these rolling elements 4.
  • the rolling bearing 1 is formed in a non-visible manner as a double-row bearing, wherein rolling elements of a first not shown, arranged axially adjacent to the rolling element row formed by the rolling elements 4 row of rolling elements directly on the inner ring 3, which also forms a hub for a male wheel, rolling and be added during manufacture of the rolling bearing 1 between the outer ring 2 and inner ring 3.
  • the rolling elements 4 are then joined to the bearing ring 5, which is then rolled by means of the annular flange 6.
  • the encoder ring 7 On the inner ring 3 associated, fixedly connected to this bearing ring 5, the encoder ring 7 is received by means of the inner circumference 8.
  • the radially expanded leg 9 contains the exciter surfaces 10 formed, for example, of magnetic material.
  • the lid 12 With play to the encoder ring 7, the lid 12 is applied to the axial stop 1 1 of the outer ring 2.
  • the cover 12 seals the side of the roller bearing 1 facing the support part 13 to the outside and from the inside.
  • the lid 12 has in the direction of the rolling elements 4, the indentation 14, which is annular here and the ring-shaped speed sensor 15 substantially completely receives up to the radially enlarged portion 16.
  • the rotational speed sensor 15 has at least one sensor surface 17 facing the exciter surfaces 10 of the encoder ring 7.
  • the outer ring 2 has the axial projection 18, which is received on the inner circumference 19 of the support member 13, for example a wheel carrier connected to the body of a motor vehicle centered, for example, is pressed. In this case, the outer ring 2 is attached to the axial stop 20, so that a groove 22 is formed between the axial projection 18 and the stepped radially inwardly widened shoulder 21 into which the section 16 of the rotational speed sensor 15 engages radially.
  • the section 16 is formed as an elastic lip 23, so that the rotational speed sensor 15 and thus the cover 12 are axially biased against the stop. In this case, the axial prestressing of the cover 12 and of the rotational speed sensor 15 takes place during the joining of the outer ring 2 into the carrier part 13.
  • FIG. 2 shows a roller bearing 1 a similar to the roller bearing 1 of FIG. 1 in partial section.
  • the bearing ring 5a of the inner ring 3a is widened radially outwards, so that the encoder ring 7a is received on the bearing ring 5a on its outer circumference.
  • the cover 12a has the radially opposite the indentation 14a expanded annular rim 24a on the radially expanded portion 16a of the speed sensor 15a in the groove 22a between the axial extension 18a of the outer ring 2a and the shoulder 21a of the support member 13a is radially expanded and together with this is braced between the axial projection 18 a and the shoulder 21 a.
  • Figure 3 shows the roller bearing 1b in partial section with a modified radially enlarged portion 16b the speed sensor 15b.
  • the section 16b is axially guided axially on the inner circumference 25b, which is reduced by the shoulder 21b of the carrier part 13b.
  • the paragraph 21 b of the support member 13b biases while the radially expanded portion 16b and thus the rotational speed sensor 15b and centered on the axial projection 18b of the outer ring 2b cover 12b against the stop 1 1 b of the outer ring.
  • the insertion slope 26b on the radially expanded portion 16b serves to facilitate the insertion of the radially biased against the inner periphery 25b portion 16b.
  • FIG 4 shows a further variant of the rolling bearing 1, 1 b of Figures 1 and 3 in the form of the rolling bearing 1 c, wherein the speed sensor 15c is connected captively with the outer ring 2c, so that this already before joining the outer ring 2c with the support member 13c is positively connected.
  • the latching connection 27c is provided between the axial projection 18c of the outer ring 2c and the radially expanded portion 16c of the rotational speed sensor 15c.
  • the section 16c engages over the cover 12c radially.
  • the axial fixation of the lid 12c and the speed sensor 15c on the stop 1 1 c by means of the between the portion 16c and the paragraph 21 c of the support member 13c arranged spacer disc 28c, which may be axially elastic.
  • FIG. 5 shows a variant of the roller bearing 1a of FIG. 2 in the form of the roller bearing 1d with the cover 12d extended by means of the annular flange 24d into the groove 22d between the axial projection 18d and the shoulder 21d of the carrier part 13d.
  • the annular rim 24d is supported axially on the projection 18d, while with axial play the radially expanded portion 16d of the rotational speed sensor 15d is supported on the shoulder 21d of the carrier part 13d.
  • the radially expanded portion 16d is preferably elastic.
  • the cover 12d is biased by the rotational speed sensor 15d against the axial projection 18d and thus against the outer ring 2d via the axial prestressing of the section 16d by means of the carrier part 13d.
  • Figure 6 shows the rolling bearing 1 d of Figure 5 similar rolling bearings 1 e in partial section.
  • the rotational speed sensor 15e is provided with a simplified, and thus more favorable, annular housing shape.
  • As an axially extended portion 16e is the compensating plate 29e, which is axially supported on the shoulder 21 e of the support member 13e and the rotational speed sensor 15e and thus the lid 12e biases on its annular rim 24e against the axial projection 18e of the outer ring 2e.
  • the shim 29e can be inserted before the joining of the outer ring 2e with the speed sensor 15e in the paragraph 21 e or be introduced after joining the outer ring 2e in the form of a Seegerings from behind into the paragraph 21 e.
  • the shim 29e compensates for the different radial diameters of paragraph 21 e and speed sensor 15e and optionally an axial distance.

Abstract

The invention relates to a rolling element bearing (1), particularly a wheel bearing, comprising an outer ring (2), an inner ring (3), rolling elements (4) which roll between these, a carrier part (13) which receives said outer ring (2), a cover (12) secured to the outer ring (2) and sealing the rolling element bearing (1) tightly on one side, and a rotational speed detection device for detecting a difference in rotational speed between the inner ring (3) and outer ring (2) and comprising an encoder ring (7) secured on the inner ring (3) and a rotational speed sensor (15) arranged to be axially adjacent to said encoder ring (7), outside the cover (12). In order to secure the cover (12) and the rotational speed sensor (15) in their places of installation in a simple design, the cover (12) comprises an axially-formed indentation (14) in the direction of the rolling element (4), into which said rotational speed sensor (15) is inserted and is axially secured between said outer ring (2) and carrier part (13).

Description

Bezeichnung der Erfindung  Name of the invention
Wälzlager mit Drehzahlerfassungseinrichtung Beschreibung Rolling bearing with speed detection device Description
Gebiet der Erfindung Field of the invention
Die Erfindung betrifft ein Wälzlager, insbesondere Radlager mit einem Außenring, einem Innenring und zwischen diesen abwälzenden Wälzkörpern, einem den Außenring aufnehmenden Trägerteil, einem an dem Außenring befestigten, das Wälzlager an einer Seite dicht abschließenden Deckel sowie einer Drehzahlerfassungseinrichtung zur Erfassung einer Drehzahldiffe- renz zwischen Innenring und Außenring mit einem auf dem Innenring befestigten Encoderring und einem axial benachbart zu dem Encoderring außerhalb des Deckels angeordneten Drehzahlsensor.  The invention relates to a rolling bearing, in particular wheel bearing with an outer ring, an inner ring and between these rolling rolling elements, a outer ring receiving support member, a fixed to the outer ring, the rolling bearing on one side tightly closed lid and a speed detection device for detecting a speed difference between Inner ring and outer ring with a mounted on the inner ring encoder ring and an axially adjacent to the encoder ring outside the lid arranged speed sensor.
Hintergrund der Erfindung Background of the invention
Wälzlager, insbesondere Radlager weisen einreihig oder zweireihig angeordnete Wälzlagerreihen mit Wälzkörpern auf, die zwischen einem Außenring und einem Innenring abwälzen. Um die Wälzkörper zwischen Außenring und Innenring einbringen zu können, kann der Innenring geteilt sein. Hierbei ist der Außenring fest an einem Trägerteil, beispielsweise einem Radträger aufgenommen, während der Innenring verdrehbar ausgebildet ist, beispielsweise eine Radnabe bildet oder in dieser aufgenommen ist. Zur Erfassung einer Drehzahldifferenz zwischen Außenring und Innenring, beispielsweise um Drehkennwerte des Rads, beispielsweise die Raddrehzahl und deren Gradienten eines Antiblockiersystems zu erfassen, ist an dem Innenring drehfest ein Encoderring angeordnet, dessen winkelabhängige Erregerimpulse bei einer Verdrehung des Innenrings von einem fest angeordneten Drehzahlsensor erfasst werden. Weiterhin kann zur Abdichtung des Wälzlagers ein Deckel vorgesehen sein, der am Außenring aufgenommen ist und den freien Bereich des Wälzlagers abdeckt. Dabei muss der Drehzahlsensor so positioniert werden, dass er die Erregerflächen des Encoderrings mit sei- nem sensitiven Bereich außerhalb des Deckels erfassen kann. Aus der DE 10 201 1 014 545 A1 ist ein Wälzlager bekannt, bei dem der Drehzahlsensor zwischen Außenring und Innenring angeordnet ist. Ein Deckel ist nicht vorgesehen. Die DE 10 201 1 004 422 A1 zeigt ein Wälzlager mit einem an dem Außenring angeordneten Deckel. Rolling, in particular wheel bearings have single-row or double row arranged rolling bearing rows with rolling elements, which roll between an outer ring and an inner ring. In order to bring the rolling elements between the outer ring and inner ring, the inner ring can be divided. Here, the outer ring is fixedly received on a support member, such as a wheel, while the inner ring is rotatable, for example, forms a hub or is added to this. To detect a speed difference between the outer ring and inner ring, for example, to detect rotational characteristics of the wheel, for example, the wheel speed and its gradient of an anti-lock braking system, an encoder ring is rotatably disposed on the inner ring, the angle-dependent excitation pulses arranged at a rotation of the inner ring of a fixed Speed sensor can be detected. Furthermore, a lid may be provided for sealing the rolling bearing, which is accommodated on the outer ring and covers the free area of the rolling bearing. The speed sensor must be positioned so that it can detect the exciter surfaces of the encoder ring with its sensitive area outside the cover. From DE 10 201 1 014 545 A1 discloses a rolling bearing is known in which the speed sensor between the outer ring and inner ring is arranged. A lid is not provided. DE 10 201 1 004 422 A1 shows a rolling bearing with a cover arranged on the outer ring.
Aufgabe der Erfindung Object of the invention
Aufgabe der Erfindung ist die Weiterentwicklung derartiger Wälzlager mit einem in das Wälzlager integrierten Drehzahlsensor, insbesondere zur Erzielung einer einfachen Herstellung und einer axialen Sicherung des De- ckels.  The object of the invention is the further development of such roller bearings with a built-in rolling bearing speed sensor, in particular for achieving a simple production and an axial securing of the lid.
Allgemeine Beschreibung der Erfindung General description of the invention
Die Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Die von diesem abhängigen Unteransprüche geben vorteilhafte Ausführungsformen des Gegenstands des Anspruchs 1 wieder.  The object is solved by the subject matter of claim 1. The dependent of this dependent claims give advantageous embodiments of the subject matter of claim 1 again.
Das vorgeschlagene Wälzlager ist bevorzugt als Radlager ausgebildet und enthält einen Außenring, einen einteiligen oder zweiteiligen Innenring und zwischen diesen auf einer oder zwei Wälzreihen abwälzenden Wälzkörper. Der Außenring ist an einem Trägerteil, beispielsweise einem Radträger ei- nes Kraftfahrzeugs aufgenommen. An dem Außenring ist ein das Wälzlager an einer Seite dicht abschließender Deckel vorgesehen, der einen Eintrag von Schmutz und Wasser und das Austreten von Schmiermittel des Wälzlagers verhindert. Eine Drehzahlerfassungseinrichtung erfasst Drehkennwerte, beispielsweise eine Drehzahldifferenz, Drehwinkel, Drehgeschwindigkeit und/oder Drehbeschleunigungen zwischen Innenring und Außenring. Hierzu ist an dem Innenring ein Encoderring aufgenommen, beispielsweise aufge- presst. An dem Encoderring sind Erregerelemente, beispielsweise magneti- sehe Elemente angeordnet, die bei einer Verdrehung des Innenrings an einem axial benachbart zu dem Encoderring außerhalb des Deckels angeordneten Drehzahlsensor inkrementelle Signale erzeugen, aus denen die Drehkennwerte des Innenrings und damit eines an einer dem Innenring zugeord- neten Nabe befestigten Rads ermittelt werden können. Der Deckel weist eine in Richtung der Wälzkörper axial ausgebildete Einformung auf, in die der Drehzahlsensor eingebracht ist, wobei dieser zwischen Außenring und Trägerteil axial gesichert ist. Durch die axiale Sicherung des Drehzahlsensors wird zugleich der Deckel axial gesichert, so dass dieser selbst bei Ü- berdruck axial in seiner Position fixiert bleibt. Der Drehzahlsensor und der Deckel können dabei gemeinsam kostengünstig und einfach in dem Wälzlager aufgenommen werden, ohne zusätzliche Befestigungsteile vorzusehen. Desweiteren bleibt eine eingestellte Position des Drehzahlsensors zum Encoderring erhalten, selbst wenn das Radlager toleranzbedingt, durch ent- sprechende Einstellvorgänge, durch im Fahrbetrieb auftretende Verlagerungen und dergleichen gegenüber dem Trägerteil verlagert wird. The proposed rolling bearing is preferably designed as a wheel bearing and includes an outer ring, a one-piece or two-piece inner ring and between these rolling on one or two rows of rolling elements. The outer ring is received on a carrier part, for example a wheel carrier of a motor vehicle. On the outer ring, the rolling bearing on one side tightly sealing lid is provided, which prevents entry of dirt and water and the escape of lubricant of the bearing. A rotational speed detection device detects rotational characteristics, for example a rotational speed difference, rotational angle, rotational speed and / or rotational accelerations between inner ring and outer ring. For this purpose, an encoder ring is received on the inner ring, for example pressed on. At the encoder ring are excitation elements, such as magnetic see arranged elements that generate in a rotation of the inner ring on an axially adjacent to the encoder ring outside the lid arranged speed sensor incremental signals from which the rotational characteristics of the inner ring and thus a wheel attached to a hub of the inner hub can be determined. The cover has an axially formed in the direction of the rolling indentation, in which the speed sensor is introduced, which is axially secured between the outer ring and the support member. The axial securing of the rotational speed sensor at the same time the cover is axially secured so that it remains fixed axially in its position even at Ü overpressure. The speed sensor and the cover can be taken together inexpensively and easily in the rolling bearing, without providing additional fasteners. Furthermore, a set position of the speed sensor is retained to the encoder ring, even if the wheel bearing is due to tolerances, is displaced by corresponding adjustment operations, occurring during driving displacements and the like with respect to the support member.
Es hat sich hierbei als vorteilhaft erwiesen, wenn Einformung und Drehzahlsensor eine zueinander komplementäre Ringform aufweisen. Hierbei kann ein ringförmig ausgebildetes Gehäuse des Drehzahlsensors eine oder meh- rere über den Umfang verteilte sensitive, dem Encoderring zugewandte Sensorflächen aufweisen. It has proved to be advantageous in this case if the indentation and the rotational speed sensor have a complementary ring shape. In this case, a ring-shaped housing of the rotational speed sensor can have one or more sensitive surfaces distributed over the circumference and facing the encoder ring.
Gemäß einer vorteilhaften Ausführungsform weist das Trägerteil eine Öffnung, beispielsweise eine Bohrung auf, in deren Innenumfang ein axialer Ansatz des Außenrings zentriert aufgenommen, beispielsweise eingepresst ist. Die Öffnung ist dabei stufenförmig unter Ausbildung eines sich an den axialen Ansatz anschließenden, radial nach innen erweiterten Absatzes ausgebildet, wobei ein radial erweiterter Abschnitt des Drehzahlsensors zwischen dem axialen Ansatz des Außenrings und dem Absatz des Trägerteils angeordnet ist. Bei einer ringförmigen Ausbildung des Gehäuses des Dreh- zahlsensors kann der radial erweiterte Abschnitt beispielsweise ein Ringbord sein. Alternativ können eine oder mehrere über den Umfang verteilte radial erweiterte Laschen, Rasthaken und dergleichen vorgesehen sein. Beispielsweise kann der radial erweiterte Abschnitt elastisch ausgebildet und mittels des Absatzes axial gegen den Deckel vorgespannt sein. According to an advantageous embodiment, the support part has an opening, for example a bore, in the inner circumference of which an axial projection of the outer ring is received in a centered manner, for example pressed in. The opening is formed stepwise to form a subsequent to the axial approach, radially inwardly expanded paragraph, wherein a radially expanded portion of the speed sensor between the axial projection of the outer ring and the shoulder of the support member is arranged. In the case of an annular design of the housing of the speed sensor, the radially widened portion may be, for example, an annular board. Alternatively, one or more distributed over the circumference radially expanded tabs, latching hooks and the like may be provided. For example, the radially expanded portion may be formed elastically and biased by the shoulder axially against the lid.
Weiterhin kann ein radial erweiterter Deckelabschnitt axial benachbart zum Abschnitt radial erweitert sein, so dass Deckelabschnitt und Abschnitt ge- meinsam zwischen dem axialen Ansatz des Außenrings und dem Absatz des Trägerteils axial verspannt sind. Hierdurch kann eine axiale Belastung des Gehäuses des Drehzahlsensors vermindert werden. Furthermore, a radially enlarged cover portion axially adjacent to the portion may be radially expanded, so that lid portion and portion together between the axial extension of the outer ring and the shoulder of the support member are axially braced. As a result, an axial load of the housing of the speed sensor can be reduced.
Weiterhin kann der Deckel an einem Anschlag des Außenrings axial angelegt und der Drehzahlsensor mittels des Trägerteils gegen den Deckel axial vorgespannt sein. Hierbei kann sich der Deckel radial außerhalb der Einfor- mung an einer Stirnseite des Außenrings abstützen, wobei die axiale Anlage an dem Anschlag des Außenrings an einem am Innenumfang des axialen Ansatzes des Außenrings vorgesehen sein kann.  Furthermore, the lid can be applied axially to a stop of the outer ring and the rotational speed sensor can be axially biased by the carrier part against the lid. In this case, the cover can be supported radially outside the indentation on an end face of the outer ring, it being possible for the axial abutment against the stop of the outer ring to be provided on one of the inner circumference of the axial extension of the outer ring.
In einer weiteren vorteilhaften Ausführungsform kann der Drehzahlsensor mittels einer Ausgleichsscheibe, einer Distanzscheibe, eines Seegerings und/oder dergleichen an dem nach radial innen erweiterten Absatz des Trägerteils axial abgestützt sein. Hierbei kann vor dem Fügen des Wälzlagers an dem Trägerteil beispielsweise eine Ausgleichsscheibe an den radial nach innen erweiterten Absatz eingelegt werden, um einen radialen und/oder a- xialen Ausgleich zwischen dem Drehzahlsensor und dem Absatz herzustellen. In einer anderen Montagereihenfolge kann nach dem Fügen des Wälzlagers an dem Trägerteil der Drehzahlsensor mittels eines Seegerings an dem Absatz axial gesichert werden  In a further advantageous embodiment, the speed sensor can be axially supported by means of a shim, a spacer, a Seegerings and / or the like on the radially inwardly extended shoulder of the support member. In this case, for example, before the joining of the roller bearing to the carrier part, a compensation disk can be inserted against the radially inwardly widened shoulder in order to produce a radial and / or axial compensation between the rotational speed sensor and the shoulder. In another assembly sequence, after the joining of the roller bearing to the carrier part, the rotational speed sensor can be secured axially by means of a collar ring on the shoulder
Insbesondere wenn das Trägerteil nachträglich an einer Baugruppe des Wälzlagers mit dem Drehzahlsensor gefügt wird, kann der Drehzahlsensor vor einem Fügen des Trägerteils verliersicher an dem Außenring aufgenommen sein. Hierzu kann der Drehzahlsensor an einem axialen Ansatz des Außenrings mittels einer Rastverbindung verliersicher aufgenommen sein. Kurze Beschreibung der Figuren  In particular, when the carrier part is subsequently joined to an assembly of the rolling bearing with the rotational speed sensor, the rotational speed sensor can be taken captive to a joining of the support member to the outer ring. For this purpose, the speed sensor may be captively received on an axial projection of the outer ring by means of a latching connection. Brief description of the figures
Die Erfindung wird anhand der in den Figuren 1 bis 6 dargestellten Ausführungsformen näher erläutert. Dabei zeigen: Figur 1 ein Wälzlager mit einem an einem Trägerteil mittels einer elastischen Lippe gesicherten Drehzahlsensor im Teilschnitt, Figur 2 ein Wälzlager mit einem an dem Trägerteil axial gesicherten The invention will be explained in more detail with reference to the embodiments shown in Figures 1 to 6. Showing: Figure 1 shows a rolling bearing with a secured to a support member by means of an elastic lip speed sensor in partial section, Figure 2 shows a rolling bearing with an axially secured to the support member
Deckel und einem axial gesicherten Drehzahlsensor im Teilschnitt,  Cover and an axially secured speed sensor in partial section,
Figur 3 ein dem Wälzlager der Figur 1 ähnliches Wälzlager mit einem axial an dem Trägerteil eingerasteten Drehzahlsensor im Teilschnitt,  FIG. 3 shows a rolling bearing similar to the rolling bearing of FIG. 1 with a rotational speed sensor axially locked on the carrier part,
Figur 4 ein Wälzlager mit einem axial an dem Trägerteil gesicherten und verliersicher an dem Außenring aufgenommenen Drehzahlsensor im Teilschnitt,  FIG. 4 shows a partial view of a roller bearing with a rotational speed sensor secured axially on the carrier part and captively held on the outer ring,
Figur 5 ein Wälzlager mit axial zwischen dem Außenring und dem  Figure 5 shows a rolling bearing with axially between the outer ring and the
Trägerteil verspannten Deckel und Drehmomentsensor im Teilschnitt  Carrier part clamped cover and torque sensor in partial section
und and
Figur 6 ein Wälzlager mit einem axial mittels eines Seegerings gegen das Trägerteil gesicherten Drehzahlsensor im Teilschnitt. Figure 6 shows a rolling bearing with a axially secured by a Seegerings against the support member speed sensor in partial section.
Ausführliche Beschreibung der Figuren Detailed description of the figures
Die Figur 1 zeigt einen Teilschnitt des um die Drehachse d angeordneten als Radlager ausgebildeten Wälzlagers 1 mit dem Außenring 2 und dem Innenring 3 und den zwischen diesen abwälzenden Wälzkörpern 4. Das Wälzlager 1 ist in nicht einsehbarer Weise als zweireihiges Lager ausgebildet, wobei Wälzkörper einer ersten nicht dargestellten, axial benachbart zu der von den Wälzkörpern 4 gebildeten Wälzkörperreihe angeordnete Wälzkörperreihe direkt auf dem Innenring 3, der zugleich eine Nabe für ein aufzunehmendes Rad bildet, abwälzen und während der Fertigung des Wälzlagers 1 zwischen Außenring 2 und Innenring 3 gefügt werden. Die Wälzkörper 4 werden anschließend mit dem Lagerring 5 gefügt, der anschließend mittels des Ringbords 6 einrolliert wird. 1 shows a partial section of the arranged around the axis of rotation d designed as a wheel bearing bearing 1 with the outer ring 2 and the inner ring 3 and the rolling between these rolling elements 4. The rolling bearing 1 is formed in a non-visible manner as a double-row bearing, wherein rolling elements of a first not shown, arranged axially adjacent to the rolling element row formed by the rolling elements 4 row of rolling elements directly on the inner ring 3, which also forms a hub for a male wheel, rolling and be added during manufacture of the rolling bearing 1 between the outer ring 2 and inner ring 3. The rolling elements 4 are then joined to the bearing ring 5, which is then rolled by means of the annular flange 6.
Auf dem dem Innenring 3 zugeordneten, fest mit diesem verbundenen Lagerring 5 ist der Encoderring 7 mittels des Innenumfangs 8 aufgenommen. Der radial erweiterte Schenkel 9 enthält die beispielsweise aus magnetischem Material gebildeten Erregerflächen 10. Mit Spiel zu dem Encoderring 7 ist an dem axialen Anschlag 1 1 des Außenrings 2 der Deckel 12 angelegt. Der Deckel 12 dichtet die dem Trägerteil 13 zugewandte Seite des Wälzla- gers 1 nach außen und von innen her ab. On the inner ring 3 associated, fixedly connected to this bearing ring 5, the encoder ring 7 is received by means of the inner circumference 8. The radially expanded leg 9 contains the exciter surfaces 10 formed, for example, of magnetic material. With play to the encoder ring 7, the lid 12 is applied to the axial stop 1 1 of the outer ring 2. The cover 12 seals the side of the roller bearing 1 facing the support part 13 to the outside and from the inside.
Der Deckel 12 weist die in Richtung der Wälzkörper 4 die Einformung 14 auf, die hier ringförmig ausgebildet ist und den ringförmig ausgebildeten Drehzahlsensor 15 bis auf den radial erweiterten Abschnitt 16 im Wesentlichen vollständig aufnimmt. Der Drehzahlsensor 15 weist zumindest eine, den Erregerflächen 10 des Encoderrings 7 zugewandte Sensorfläche 17 auf. Der Außenring 2 weist den axialen Ansatz 18 auf, der an dem Innenumfang 19 des Trägerteils 13, beispielsweise einem mit der Karosserie eines Kraftfahrzeugs verbundenen Radträger, zentriert aufgenommen, beispielsweise verpresst ist. Hierbei wird der Außenring 2 an den Axialanschlag 20 ange- legt, so dass zwischen dem axialen Ansatz 18 und dem stufenförmig nach radial innen erweiterten Absatz 21 eine Nut 22 entsteht in die der Abschnitt 16 des Drehzahlsensors 15 radial eingreift. Der Abschnitt 16 ist als elastische Lippe 23 ausgebildet, so dass der Drehzahlsensor 15 und damit der Deckel 12 gegen den Anschlag axial vorgespannt werden. Hierbei erfolgt die axiale Vorspannung des Deckels 12 und des Drehzahlsensors 15 während des Fügens des Außenrings 2 in das Trägerteil 13.  The lid 12 has in the direction of the rolling elements 4, the indentation 14, which is annular here and the ring-shaped speed sensor 15 substantially completely receives up to the radially enlarged portion 16. The rotational speed sensor 15 has at least one sensor surface 17 facing the exciter surfaces 10 of the encoder ring 7. The outer ring 2 has the axial projection 18, which is received on the inner circumference 19 of the support member 13, for example a wheel carrier connected to the body of a motor vehicle centered, for example, is pressed. In this case, the outer ring 2 is attached to the axial stop 20, so that a groove 22 is formed between the axial projection 18 and the stepped radially inwardly widened shoulder 21 into which the section 16 of the rotational speed sensor 15 engages radially. The section 16 is formed as an elastic lip 23, so that the rotational speed sensor 15 and thus the cover 12 are axially biased against the stop. In this case, the axial prestressing of the cover 12 and of the rotational speed sensor 15 takes place during the joining of the outer ring 2 into the carrier part 13.
Die Figur 2 zeigt ein dem Wälzlager 1 der Figur 1 ähnliches Wälzlager 1 a im Teilschnitt. Der Lagerring 5a des Innenrings 3a ist hierbei nach radial außen erweitert, so dass der Encoderring 7a an dessen Außenumfang an dem La- gerring 5a aufgenommen ist. Weiterhin weist der Deckel 12a den radial gegenüber der Einformung 14a erweiterten Ringbord 24a auf der mit dem radial erweiterten Abschnitt 16a des Drehzahlsensors 15a in die Nut 22a zwischen axialem Ansatz 18a des Außenrings 2a und dem Absatz 21 a des Trägerteils 13a radial erweitert ist und gemeinsam mit diesem zwischen dem axialen Ansatz 18a und dem Absatz 21 a verspannt ist.  FIG. 2 shows a roller bearing 1 a similar to the roller bearing 1 of FIG. 1 in partial section. In this case, the bearing ring 5a of the inner ring 3a is widened radially outwards, so that the encoder ring 7a is received on the bearing ring 5a on its outer circumference. Furthermore, the cover 12a has the radially opposite the indentation 14a expanded annular rim 24a on the radially expanded portion 16a of the speed sensor 15a in the groove 22a between the axial extension 18a of the outer ring 2a and the shoulder 21a of the support member 13a is radially expanded and together with this is braced between the axial projection 18 a and the shoulder 21 a.
In Abänderung zu dem Wälzlager 1 der Figur 1 zeigt die Figur 3 das Wälzlager 1 b im Teilschnitt mit einem veränderten radial erweiterten Abschnitt 16b des Drehzahlsensors 15b. Der Abschnitt 16b ist hierbei axial an dem durch den Absatz 21 b des Trägerteils 13b verminderten Innenumfang 25b axial geführt. Der Absatz 21 b des Trägerteils 13b spannt dabei den radial erweiterten Abschnitt 16b und damit den Drehzahlsensor 15b und den an dem axialen Ansatz 18b des Außenrings 2b zentrierten Deckel 12b gegen den Anschlag 1 1 b des Außenrings vor. Während des Fügens des Außenrings 2b an das Trägerteil 13b dient die Einfuhrschräge 26b am radial erweiterten Abschnitt 16b der erleichterten Einfuhr des radial gegen den Innenumfang 25b vorgespannten Abschnitts 16b. In a modification to the rolling bearing 1 of Figure 1, Figure 3 shows the roller bearing 1b in partial section with a modified radially enlarged portion 16b the speed sensor 15b. In this case, the section 16b is axially guided axially on the inner circumference 25b, which is reduced by the shoulder 21b of the carrier part 13b. The paragraph 21 b of the support member 13b biases while the radially expanded portion 16b and thus the rotational speed sensor 15b and centered on the axial projection 18b of the outer ring 2b cover 12b against the stop 1 1 b of the outer ring. During the joining of the outer ring 2b to the support part 13b, the insertion slope 26b on the radially expanded portion 16b serves to facilitate the insertion of the radially biased against the inner periphery 25b portion 16b.
Figur 4 zeigt eine weitere Variante der Wälzlager 1 , 1 b der Figuren 1 und 3 in Form des Wälzlagers 1 c, bei dem der Drehzahlsensor 15c mit dem Außenring 2c verliersicher verbunden ist, so dass dieser bereits vor dem Fügen des Außenrings 2c mit dem Trägerteil 13c formschlüssig verbunden ist. Hierzu ist zwischen dem axialen Ansatz 18c des Außenrings 2c und dem radial erweiterten Abschnitt 16c des Drehzahlsensors 15c die Rastverbindung 27c vorgesehen. Hierzu übergreift der Abschnitt 16c den Deckel 12c radial. Die axiale Fixierung des Deckels 12c und des Drehzahlsensors 15c an dem Anschlag 1 1 c erfolgt mittels der zwischen dem Abschnitt 16c und dem Absatz 21 c des Trägerteils 13c angeordneten Distanzscheibe 28c, die axial elastisch ausgebildet sein kann. Figure 4 shows a further variant of the rolling bearing 1, 1 b of Figures 1 and 3 in the form of the rolling bearing 1 c, wherein the speed sensor 15c is connected captively with the outer ring 2c, so that this already before joining the outer ring 2c with the support member 13c is positively connected. For this purpose, the latching connection 27c is provided between the axial projection 18c of the outer ring 2c and the radially expanded portion 16c of the rotational speed sensor 15c. For this purpose, the section 16c engages over the cover 12c radially. The axial fixation of the lid 12c and the speed sensor 15c on the stop 1 1 c by means of the between the portion 16c and the paragraph 21 c of the support member 13c arranged spacer disc 28c, which may be axially elastic.
Figur 5 zeigt eine Variante des Wälzlagers 1 a der Figur 2 in Form des Wälzlagers 1 d mit dem mittels des Ringbords 24d in die Nut 22d zwischen axialem Ansatz 18d und Absatz 21 d des Trägerteils 13d erweiterten Deckel 12d. Hierbei stützt sich der Ringbord 24d axial an dem Ansatz 18d ab, während sich mit Axialspiel der radial erweiterte Abschnitt 16d des Drehzahlsensors 15d an dem Absatz 21 d des Trägerteils 13d abstützt. Hierdurch kann durch Wegfall eines separat für den Ringbord 24d an dem Außenring 2d vorgesehener Axialanschlag ein einfacherer Aufbau erzielt werden. Der radial erweiterte Abschnitt 16d ist bevorzugt elastisch ausgebildet. Über die axiale Vor- Spannung des Abschnitts 16d mittels des Trägerteils 13d wird der Deckel 12d von dem Drehzahlsensor 15d gegen den axialen Ansatz 18d und damit gegen den Außenring 2d vorgespannt. Figur 6 zeigt das dem Wälzlager 1 d der Figur 5 ähnliche Wälzlager 1 e im Teilschnitt. Im Unterschied zu diesem ist der Drehzahlsensor 15e mit einer vereinfachten und damit günstiger herzustellenden, ringförmigen Gehäuseform versehen. Als axial erweiterter Abschnitt 16e dient die Ausgleichs- Scheibe 29e, die sich axial an dem Absatz 21 e des Trägerteils 13e abstützt und den Drehzahlsensor 15e und damit den Deckel 12e an seinem Ringbord 24e gegen den axialen Ansatz 18e des Außenrings 2e vorspannt. Je nach Montagereihenfolge kann die Ausgleichsscheibe 29e vor dem Fügen des Außenrings 2e mit dem Drehzahlsensor 15e in den Absatz 21 e eingelegt werden oder nach dem Fügen des Außenrings 2e in Form eines Seegerings von hinten in den Absatz 21 e eingebracht werden. Die Ausgleichsscheibe 29e gleicht die unterschiedlichen radialen Durchmesser von Absatz 21 e und Drehzahlsensor 15e und gegebenenfalls einen axialen Abstand aus. FIG. 5 shows a variant of the roller bearing 1a of FIG. 2 in the form of the roller bearing 1d with the cover 12d extended by means of the annular flange 24d into the groove 22d between the axial projection 18d and the shoulder 21d of the carrier part 13d. In this case, the annular rim 24d is supported axially on the projection 18d, while with axial play the radially expanded portion 16d of the rotational speed sensor 15d is supported on the shoulder 21d of the carrier part 13d. As a result, a simpler structure can be achieved by eliminating an axial stop provided separately for the ring flange 24d on the outer ring 2d. The radially expanded portion 16d is preferably elastic. The cover 12d is biased by the rotational speed sensor 15d against the axial projection 18d and thus against the outer ring 2d via the axial prestressing of the section 16d by means of the carrier part 13d. Figure 6 shows the rolling bearing 1 d of Figure 5 similar rolling bearings 1 e in partial section. In contrast to this, the rotational speed sensor 15e is provided with a simplified, and thus more favorable, annular housing shape. As an axially extended portion 16e is the compensating plate 29e, which is axially supported on the shoulder 21 e of the support member 13e and the rotational speed sensor 15e and thus the lid 12e biases on its annular rim 24e against the axial projection 18e of the outer ring 2e. Depending on the order of assembly, the shim 29e can be inserted before the joining of the outer ring 2e with the speed sensor 15e in the paragraph 21 e or be introduced after joining the outer ring 2e in the form of a Seegerings from behind into the paragraph 21 e. The shim 29e compensates for the different radial diameters of paragraph 21 e and speed sensor 15e and optionally an axial distance.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Wälzlager 1 rolling bearing
1 a Wälzlager  1 a rolling bearing
1 b Wälzlager  1 b rolling bearings
1 c Wälzlager  1 c rolling bearings
1 d Wälzlager  1 d rolling bearings
1 e Wälzlager  1 e rolling bearings
2 Außenring  2 outer ring
2a Außenring  2a outer ring
2b Außenring  2b outer ring
2c Außenring  2c outer ring
2d Außenring  2d outer ring
2e Außenring  2e outer ring
3 Innenring  3 inner ring
3a Innenring  3a inner ring
4 Wälzkörper  4 rolling elements
5 Lagerring  5 bearing ring
5a Lagerring  5a bearing ring
6 Ringbord  6 ring board
7 Encoderring  7 encoder ring
7a Encoderring  7a encoder ring
8 Innenumfang  8 inner circumference
9 Schenkel  9 thighs
10 Erregerfläche  10 pathogen area
1 1 Anschlag  1 1 stop
1 1 b Anschlag  1 1 b stop
1 1 c Anschlag  1 1 c stop
12 Deckel  12 lids
12a Deckel  12a lid
12b Deckel  12b lid
12c Deckel  12c lid
12d Deckel  12d lid
12e Deckel  12e lid
13 Trägerteil  13 carrier part
13a Trägerteil  13a carrier part
13b Trägerteil  13b carrier part
13c Trägerteil  13c carrier part
13d Trägerteil  13d carrier part
13e Trägerteil  13e carrier part
14 Einformung  14 indentation
14a Einformung  14a indentation
15 Drehzahlsensor  15 speed sensor
15a Drehzahlsensor  15a speed sensor
15b Drehzahlsensor  15b speed sensor
15c Drehzahlsensor 15d Drehzahlsensor15c speed sensor 15d speed sensor
15e Drehzahlsensor15e speed sensor
16 Abschnitt 16 section
16a Abschnitt  16a section
16b Abschnitt  16b section
16c Abschnitt  16c section
16d Abschnitt  16d section
16e Abschnitt  16e section
17 Sensorfläche 17 sensor surface
18 Ansatz 18 approach
18a Ansatz  18a approach
18b Ansatz  18b approach
18c Ansatz  18c approach
18d Ansatz  18d approach
18e Ansatz  18e approach
19 Innenumfang 19 inner circumference
20 Axialanschlag20 axial stop
21 Absatz 21 paragraph
21 a Absatz  21 a paragraph
21 b Absatz  21 b paragraph
21 c Absatz  21 c paragraph
21 d Absatz  21 d paragraph
21 e Absatz  21 e paragraph
22 Nut  22 groove
22a Nut  22a groove
22d Nut  22d groove
23 Lippe  23 lip
24 Ringbord  24 ring board
24a Ringbord  24a ring board
24d Ringbord  24d ringboard
24e Ringbord  24e ring board
25b Innenumfang 25b inner circumference
26b Einfuhrschräge26b import slope
27c Rastverbindung27c locking connection
28c Distanzscheibe28c spacer
29e Ausgleichsscheibe d Drehachse 29e shim d rotation axis

Claims

Patentansprüche Patent claims
Wälzlager (1 , 1 a, 1 b, 1 c, 1 d, 1 e) mit einem Außenring (2, 2a, 2b, 2c, 2d, 2e), einem Innenring (3, 3a) und zwischen diesen abwälzenden Wälzkörpern (4), einem den Außenring (2, 2a, 2b, 2c, 2d, 2e) aufnehmenden Trägerteil (13, 13a, 13b, 13c, 13d, 13e), einem an dem Außenring (2, 2a, 2b, 2c, 2d, 2e) befestigten, das Wälzlager (1 , 1 a, 1 b, 1 c, 1 d, 1 e) an einer Seite dicht abschließenden Deckel (12, 12a, 12b, 12c, 12d, 12e) sowie einer Drehzahlerfassungseinrichtung zur Erfassung einer Drehzahldifferenz zwischen Innenring (3, 3a) und Außenring (2, 2a, 2b, 2c, 2d, 2e) mit einem auf dem Innenring (3, 3a) befestigten Encoderring (7, 7a) und einem axial benachbart zu dem Encoderring (7, 7a) außerhalb des Deckels (12, 12a, 12b, 12c, 12d, 12e) angeordneten Drehzahlsensor (15, 15a, 15b, 15c, 15d, 15e), dadurch gekennzeichnet, dass der Deckel (15, 15a, 15b, 15c, 15d, 15e) eine in Richtung der Wälzkörper (4) axial ausgebildete Einformung (14, 14a) aufweist, in die der Drehzahlsensor (15, 15a, 15b, 15c, 15d, 15e) eingebracht ist und wobei dieser zwischen Außenring (2, 2a, 2b, 2c, 2d, 2e) und Trägerteil (13, 13a, 13b, 13c, 13d, 13e) axial gesichert ist. Rolling bearings (1, 1 a, 1 b, 1 c, 1 d, 1 e) with an outer ring (2, 2a, 2b, 2c, 2d, 2e), an inner ring (3, 3a) and rolling elements (4) rolling between them ), a carrier part (13, 13a, 13b, 13c, 13d, 13e) receiving the outer ring (2, 2a, 2b, 2c, 2d, 2e), one on the outer ring (2, 2a, 2b, 2c, 2d, 2e). ) attached, the rolling bearing (1, 1 a, 1 b, 1 c, 1 d, 1 e) on one side tightly sealing cover (12, 12a, 12b, 12c, 12d, 12e) and a speed detection device for detecting a speed difference between Inner ring (3, 3a) and outer ring (2, 2a, 2b, 2c, 2d, 2e) with an encoder ring (7, 7a) attached to the inner ring (3, 3a) and an axially adjacent to the encoder ring (7, 7a) outside the cover (12, 12a, 12b, 12c, 12d, 12e) arranged speed sensor (15, 15a, 15b, 15c, 15d, 15e), characterized in that the cover (15, 15a, 15b, 15c, 15d, 15e ) has an axially formed indentation (14, 14a) in the direction of the rolling elements (4), into which the speed sensor (15, 15a, 15b, 15c, 15d, 15e) is inserted and which is located between the outer ring (2, 2a, 2b, 2c, 2d, 2e) and carrier part (13, 13a, 13b, 13c, 13d, 13e) is axially secured.
Wälzlager (1 , 1 a, 1 b, 1 c, 1 d, 1 e) nach Anspruch 1 , dadurch gekennzeichnet, dass Einformung (14) und Drehzahlsensor (15, 15a, 15b, 15c, 15d, 15e) eine zueinander komplementäre Ringform aufweisen. Rolling bearing (1, 1a, 1b, 1c, 1d, 1e) according to claim 1, characterized in that the indentation (14) and the speed sensor (15, 15a, 15b, 15c, 15d, 15e) have a mutually complementary ring shape exhibit.
Wälzlager (1 , 1 a, 1 b, 1 c, 1 d, 1 e) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Trägerteil (13, 13a, 13b, 13c, 13d, 13e) einen Innenumfang (19) zur Aufnahme eines axialen Ansatzes (18, 18a, 18b, 18c, 18d, 18e) des Außenrings (2, 2a, 2b, 2c, 2d, 2e) mit einem sich anschließenden, radial nach innen erweiterten Absatz (21 , 21 a, 12b, 21 c, 21 d, 21 e) aufweist, wobei ein radial erweiterter Abschnitt (16, 16a, 16b, 16c, 16d, 16e) des Drehzahlsensors (15, 15a, 15b, 15c, 15d, 15e) zwischen dem axialen Ansatz (18, 18a, 18b, 18c, 18d, 18e) und dem Absatz (21 , 21 a, 12b, 21 c, 21 d, 21 e) angeordnet ist. Rolling bearing (1, 1 a, 1 b, 1 c, 1 d, 1 e) according to claim 1 or 2, characterized in that the carrier part (13, 13a, 13b, 13c, 13d, 13e) has an inner circumference (19). Recording of an axial extension (18, 18a, 18b, 18c, 18d, 18e) of the outer ring (2, 2a, 2b, 2c, 2d, 2e) with an adjoining, radially inwardly expanded shoulder (21, 21a, 12b, 21 c, 21 d, 21 e), wherein a radially expanded section (16, 16a, 16b, 16c, 16d, 16e) of the speed sensor (15, 15a, 15b, 15c, 15d, 15e) between the axial extension (18, 18a, 18b, 18c, 18d, 18e) and the paragraph (21, 21 a, 12b, 21 c, 21 d, 21 e).
4. Wälzlager (1 , 1 b, 1 d, 1 e) nach Anspruch 3, dadurch gekennzeichnet, dass der radial erweiterte Abschnitt (16, 16b, 16d, 16e) elastisch ausgebildet ist und mittels des Abschnitts (16, 16b, 16d, 16e) axial gegen den Deckel (12, 12b, 12d, 12e) vorgespannt ist. 4. Rolling bearing (1, 1 b, 1 d, 1 e) according to claim 3, characterized in that the radially expanded section (16, 16b, 16d, 16e) is designed to be elastic and by means of the section (16, 16b, 16d, 16e) is axially biased against the cover (12, 12b, 12d, 12e).
5. Wälzlager (1 a) nach Anspruch 3, dadurch gekennzeichnet, dass ein radial erweiterter Ringbord (24a) des Deckels (12a) axial benachbart zum Abschnitt (16a) radial erweitert ist und Ringbord (24a) und Abschnitt (16a) gemeinsam zwischen dem axialen Ansatz (18a) des Außenrings (2a) und dem Absatz (21 a) des Trägerteils (13a) axial verspannt sind. 5. Rolling bearing (1a) according to claim 3, characterized in that a radially expanded ring edge (24a) of the cover (12a) is radially expanded axially adjacent to the section (16a) and the ring edge (24a) and section (16a) together between the axial extension (18a) of the outer ring (2a) and the shoulder (21a) of the support part (13a) are axially braced.
6. Wälzlager (1 , 1 b, 1 c, 1 d, 1 e) nach Anspruch 3, dadurch gekennzeichnet, dass der Deckel (12, 12b, 12c, 12d, 12e) an einem Anschlag (1 1 , 1 1 b, 1 1 c) des Außenrings (2, 2b, 2c, 2d, 2e) axial angelegt und der Drehzahlsensor (15, 15b, 15c, 15d, 15e) mittels des Trägerteils (13, 13b, 13c, 13d, 13e) gegen den Deckel (12, 12b, 12c, 12d, 12e) axial vorgespannt ist. 6. Rolling bearing (1, 1 b, 1 c, 1 d, 1 e) according to claim 3, characterized in that the cover (12, 12b, 12c, 12d, 12e) on a stop (1 1, 1 1 b, 1 1 c) of the outer ring (2, 2b, 2c, 2d, 2e) is axially applied and the speed sensor (15, 15b, 15c, 15d, 15e) is against the cover by means of the carrier part (13, 13b, 13c, 13d, 13e). (12, 12b, 12c, 12d, 12e) is axially prestressed.
7. Wälzlager (1 a, 1 d, 1 e) nach Anspruch 6, dadurch gekennzeichnet, dass sich der Deckel (12a, 12d, 12e) radial außerhalb der Einformung (14, 14a) an einer Stirnseite des Außenrings (2a, 2d, 2e) abstützt. 7. Rolling bearing (1a, 1d, 1e) according to claim 6, characterized in that the cover (12a, 12d, 12e) is located radially outside the indentation (14, 14a) on an end face of the outer ring (2a, 2d, 2e) supports.
8. Wälzlager (1 e) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass der Drehzahlsensor (15e) mittels einer Ausgleichsscheibe (29e) an dem nach radial innen erweiterten Absatz (21 e) des Trägerteils (13e) axial abgestützt ist. 8. Rolling bearing (1 e) according to claim 6 or 7, characterized in that the speed sensor (15e) is axially supported by means of a compensating disk (29e) on the radially inwardly expanded shoulder (21 e) of the carrier part (13e).
9. Wälzlager (1 c) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Drehzahlsensor (15c) vor einem Fügen des Trägerteils (13c) verliersicher an dem Außenring (2c) aufgenommen ist. 9. Rolling bearing (1 c) according to one of claims 1 to 8, characterized in that the speed sensor (15c) is captively mounted on the outer ring (2c) before joining the carrier part (13c).
10. Wälzlager (1 c) nach Anspruch 9, dadurch gekennzeichnet, dass der Drehzahlsensor (15c) an einem axialen Ansatz (18c) des Außenrings (2c) mittels einer Rastverbindung (27c) verliersicher aufgenommen ist. 10. Rolling bearing (1 c) according to claim 9, characterized in that the speed sensor (15c) is captively mounted on an axial extension (18c) of the outer ring (2c) by means of a locking connection (27c).
PCT/DE2014/200081 2013-05-23 2014-02-26 Rolling element bearing comprising a rotational speed detection device WO2014187449A1 (en)

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DE201310209522 DE102013209522B3 (en) 2013-05-23 2013-05-23 Rolling bearing with speed detection device

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