WO2011154197A1 - Procédé de détection d'une inclinaison d'un palier à roulement, et palier à roulement pour ce procédé - Google Patents

Procédé de détection d'une inclinaison d'un palier à roulement, et palier à roulement pour ce procédé Download PDF

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Publication number
WO2011154197A1
WO2011154197A1 PCT/EP2011/056893 EP2011056893W WO2011154197A1 WO 2011154197 A1 WO2011154197 A1 WO 2011154197A1 EP 2011056893 W EP2011056893 W EP 2011056893W WO 2011154197 A1 WO2011154197 A1 WO 2011154197A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
bearing
rolling bearing
change
encoder ring
Prior art date
Application number
PCT/EP2011/056893
Other languages
German (de)
English (en)
Inventor
Jens Heim
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 WO2011154197A1 publication Critical patent/WO2011154197A1/fr

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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
    • 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
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings

Definitions

  • the invention relates to a method and a rolling bearing for detecting a Lagerverkippung of races of the bearing, wherein a rotational movement between the two races by means of a fixed, axially spaced from the rolling bearing arranged sensor and a recurring in a rotation of the races electrical signals on the sensor causing, associated with the rotating race encoder ring by an evaluation of a change in the electrical signals per unit time is evaluated.
  • a rolling bearing for a wheel bearing device with a sensor which detects the rotational speed of the rolling bearing and thus the rotational speed of a wheel received on the wheel bearing device.
  • the sensor is rotatably received and an encoder ring with a circumferentially extending radial profile rotatably associated with the rotating race. Trained as a magnetic sensor sensor generates depending on the speed or a rotation angle of the rotating racecourse periodically recurring electrical signals, so that the change of the electrical signals in the form of signal amplitudes over time provides a speed signal of the wheel.
  • the arrangement of the wheel bearing device provides for receiving the wheel on the inner ring of the rolling bearing.
  • state sensors for bearing tilting are known in the following, which are formed, for example, from rupture wires which tear when an increased distance is established between the bearing rings and their associated components. Furthermore, by means of sensors such as temperature switches or temperature sensors, for example as a result of increased bearing friction, elevated storage temperatures can be detected and corresponding warning signals can be output in an evaluation unit. Such state sensors require additional components and corresponding signal lines, which are expensive and subject to breakage.
  • the object is achieved by a method for detecting a Lagerverkippung of races of a rolling bearing, wherein a rotational movement between the two races by means of a fixed, axially spaced arranged to the bearing and a sensor causing a rotation of the races periodically recurring electrical signals to the sensor, detected with the rotating race encoder ring is detected by a change in the electrical signals per unit time is evaluated and thus the Lagerverkippung depending on a change in distance between a sensitive surface of the sensor and a surface of the encoder ring is detected.
  • an additional sensor such as a pull wire with appropriate signal line omitted, so that the rolling bearing and thus the wheel bearing device can be made simpler, cheaper and more reliable .
  • the signal information of the amplitude or its flanks is used only with regard to their number of changes per unit time.
  • the sensor may be a speed sensor in the form of a magnetic sensor, for example a Hall sensor, a magnetoresistive sensor or the like or an inductive sensor.
  • the encoder ring made of metal may be provided with an extending over the circumference radial profile, for example as a sender wheel with an external toothing.
  • a sinusoidal signal is generated on the sensor surface via the rotation angle of the encoder ring, whose frequency depends on the wheel speed and whose amplitude depends on the distance between the encoder ring and the sensor surface of the sensor.
  • a filter such as average value filter can be switched on, for example, a moving average of the amplitudes enough.
  • a relevant Lagerverkippung is determined by means of a filtered average of the amplitudes.
  • a warning signal is output, for example optically and / or acoustically to a driver and / or as an error entry into an error memory of the evaluation unit and optionally a maintenance and repair request.
  • a warning message or a warning signal can be output if at least once a predetermined threshold of the amplitudes or their filtered averages, for example, a wear condition of the bearing, a hazard, for example in the form of Radabides or the like, is reached or exceeded.
  • a threshold can be designed in a stepped manner and different warning signals can be provided when various warning levels are reached.
  • the output of a warning signal can advantageously be when at least once a predetermined threshold of the amplitude or its filtered mean value is exceeded by a predetermined duration.
  • a possibly depending on the duration of stepped trained warning such as warning signal issued only after a certain period of excess, such as several minutes, hours of operation or the like to prevent short-term, a Lagerverkippung causing and not relevant to damage to the bearing events For example, curb bumpers, load changes during heavy vehicle loads and the like cause unnecessary warnings.
  • the detection of a bearing tilting of the rolling bearing in particular in the case of a damaged or worn rolling bearing, can be effected by detecting changes with respect to a reference value of the amplitude and thus a preset distance of the bearing rings.
  • a corresponding, possibly stepped warning signal can be output if an at least one change of an amplitude or its filtered mean value and / or for a predetermined duration and / or by a predetermined number of transgressions from the predetermined reference value by a predetermined value, for example a multi-level leading to different warnings threshold is reached or exceeded.
  • the method is preferably carried out by means of a prefabricated sensor, which is attached, for example, axially adjacent to the stationary race on a receiving this component, for example, plugged and fixed in position.
  • the transmission of the signals generated in the sensor by means of a data line to the evaluation unit provided for this purpose, for example, a control unit such as ABS control unit of an anti-lock braking system or the like.
  • the sensor data are processed and correlated with, for example, parameterizable thresholds or thresholds adapted to the application.
  • a message is sent to an alarm system, a fault memory or the like, for example via CAN (car area network), so that a bearing tilting is indicated to the driver or service personnel and if necessary logged.
  • CAN car area network
  • the sensor data can be transmitted via a digital data protocol via the data line to the evaluation, so that a fault-prone analog transmission of the data can be avoided.
  • the data protocol can be designed so that a freely usable data bit is present in the data protocol, which is freely configurable. According to the inventive idea, such a free data bit is used to transmit a second sensor for condition monitoring of the roller bearing so that the measurement data of two sensors can be transmitted to the evaluation unit by means of a single data line. Accordingly, only a single data line such as cable is necessary, so that the cost of the parts used can be reduced and the risk of a line break exists only for a data line.
  • the free data bit can be used accordingly.
  • the second sensor only consists of a switch, for example a temperature switch set to a predetermined temperature value, wherein the set temperature can be a damage temperature of the rolling bearing, the resulting signal information, for example "temperature reached” or "temperature not reached” can be determined by the free Data bit to be transmitted.
  • the second sensor is designed as a sensor, for example as a temperature sensor with signal information requiring several bits, sensor signals of the second sensor can be coded into a serial multi-bit signal and transmitted to the evaluation unit via the free data bit of the sensor.
  • the time-delayed serial transmission of the signal information on the free data bit in the frame of the data transfer rate such as clock rate of the sensor can be accepted without further disadvantages.
  • a rolling bearing in particular in a wheel bearing device of a vehicle with two mutually rotatable races and an axially spaced from the roller bearing sensor and an associated with the rotating race encoder ring for carrying out the inventive method, for this purpose in the new state of the wheel bearing between a distance is set fixed to a sensitive surface of the sensor and the encoder ring and correlated with determined by rotation of the races by means of the sensor amplitudes.
  • a single line such as a data line, is provided between the sensor and an evaluation unit.
  • the arrangement of the sensor axially to the rolling bearing takes place in the manner with distance, that the resolution of the amplitudes is sufficient to dissolve a bearing coupling, in particular a relevant for a damage and / or state of wear of the bearing bearing coupling. It has been shown here, depending on the type of construction of the wheel bearing device, that an axial distance of a few millimeters or one millimeter can be sufficient.
  • an axial distance of a few millimeters or one millimeter can be sufficient.
  • At least one second sensor for condition monitoring of the rolling bearing can be associated with the sensor, the sensor signals of which are transmitted to the evaluation unit via the same line.
  • the second sensor can form a structural unit with the sensor or be accommodated in the same housing.
  • the second sensor can be designed, for example, as a temperature sensor or temperature switch.

Landscapes

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

Abstract

L'invention concerne un procédé et un palier à roulement pour la détection d'une inclinaison des bagues de roulement du palier à roulement, procédé consistant à détecter, au moyen d'un capteur monté fixe, disposé axialement à distance du palier à roulement, un mouvement de rotation entre les deux bagues de roulement, et une bague d'encodage, reliée avec la bague de roulement entraînée en rotation et agissant sur le capteur, des signaux électriques se répétant périodiquement lors d'une rotation de la bague de roulement, et à évaluer une variation des signaux électriques par unité de temps. Afin de pouvoir se dispenser d'un capteur supplémentaire pour la détection de l'inclinaison du palier, l'invention est caractérisée en ce que l'inclinaison du palier est déterminée en fonction d'une variation de distance entre une surface sensible du capteur et une surface de la bague d'encodage.
PCT/EP2011/056893 2010-06-07 2011-05-02 Procédé de détection d'une inclinaison d'un palier à roulement, et palier à roulement pour ce procédé WO2011154197A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010022892 DE102010022892A1 (de) 2010-06-07 2010-06-07 Verfahren zur Erfassung einer Lagerverkippung eines Wälzlagers und Wälzlager hierzu
DE102010022892.3 2010-06-07

Publications (1)

Publication Number Publication Date
WO2011154197A1 true WO2011154197A1 (fr) 2011-12-15

Family

ID=44262888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/056893 WO2011154197A1 (fr) 2010-06-07 2011-05-02 Procédé de détection d'une inclinaison d'un palier à roulement, et palier à roulement pour ce procédé

Country Status (2)

Country Link
DE (1) DE102010022892A1 (fr)
WO (1) WO2011154197A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118500765A (zh) * 2024-07-18 2024-08-16 南昌工学院 一种汽车传动系统故障测试试验系统及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6373705B2 (ja) * 2014-09-29 2018-08-15 Ntn株式会社 振れ測定装置
DE102016222886A1 (de) 2016-11-21 2017-12-14 Schaeffler Technologies AG & Co. KG Lageranordnung mit Sensorelement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11218542A (ja) * 1998-02-04 1999-08-10 Nippon Seiko Kk 回転速度検出装置付転がり軸受ユニット
EP1211500A1 (fr) * 2000-12-01 2002-06-05 Nsk Ltd Dispositif de palier à roulement avec capteur
DE10243127A1 (de) * 2002-09-17 2004-03-25 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Verwendung eines zur Erfassung der Position, des Weges, der Winkellage oder der Drehzahl eines bewegten Elements vorgesehenen induktiven Signalgebers
DE102005059393A1 (de) 2005-12-13 2007-06-14 Schaeffler Kg Radlager mit Sensor
DE102008009283A1 (de) 2008-02-15 2009-08-20 Schaeffler Kg Radlagervorrichtung für ein Kraftfahrzeug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19911774B4 (de) * 1998-03-20 2013-12-24 Continental Teves Ag & Co. Ohg Sensoranordnung zur Erfassung von Bewegungen
JP4727209B2 (ja) * 2004-11-08 2011-07-20 Ｎｔｎ株式会社 センサ付車輪用軸受

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11218542A (ja) * 1998-02-04 1999-08-10 Nippon Seiko Kk 回転速度検出装置付転がり軸受ユニット
EP1211500A1 (fr) * 2000-12-01 2002-06-05 Nsk Ltd Dispositif de palier à roulement avec capteur
DE10243127A1 (de) * 2002-09-17 2004-03-25 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Verwendung eines zur Erfassung der Position, des Weges, der Winkellage oder der Drehzahl eines bewegten Elements vorgesehenen induktiven Signalgebers
DE102005059393A1 (de) 2005-12-13 2007-06-14 Schaeffler Kg Radlager mit Sensor
DE102008009283A1 (de) 2008-02-15 2009-08-20 Schaeffler Kg Radlagervorrichtung für ein Kraftfahrzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118500765A (zh) * 2024-07-18 2024-08-16 南昌工学院 一种汽车传动系统故障测试试验系统及方法

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Publication number Publication date
DE102010022892A1 (de) 2011-12-08

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