GB1604990A - Bearing condition monitoring - Google Patents

Bearing condition monitoring Download PDF

Info

Publication number
GB1604990A
GB1604990A GB26010/78A GB2601078A GB1604990A GB 1604990 A GB1604990 A GB 1604990A GB 26010/78 A GB26010/78 A GB 26010/78A GB 2601078 A GB2601078 A GB 2601078A GB 1604990 A GB1604990 A GB 1604990A
Authority
GB
United Kingdom
Prior art keywords
bearing
monitoring
temperature
condition
bearings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26010/78A
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.)
Pilgrim House Group Ltd
Original Assignee
Ransome Hoffmann Pollard Ltd
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 Ransome Hoffmann Pollard Ltd filed Critical Ransome Hoffmann Pollard Ltd
Priority to GB26010/78A priority Critical patent/GB1604990A/en
Publication of GB1604990A publication Critical patent/GB1604990A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7846Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
    • F16C33/785Bearing shields made of sheet metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14Supports; Fastening devices; Mounting thermometers in particular locations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42Devices characterised by the use of electric or magnetic means
    • G01P3/44Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/443Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04Bearings 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
    • F16C19/06Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2233/00Monitoring condition, e.g. temperature, load, vibration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/008Identification means, e.g. markings, RFID-tags; Data transfer means

Description

(54) BEARING CONDITION MONITORING (71) We, RANSOME HOFFMANN POL LARD LIMITED, a British Company of New Street, Chelmsford, Essex CMI lPU, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- The present invention relates to rolling element bearings and more particularly to bearing condition monitoring.

According to the present invention there is provided a rolling element bearing provided with in-situ temperature monitoring means on a closure means or shield or stationary race of the bearing said monitoring means serving to provide an indication of the temperature prevailing within the region of the rolling elements to signify the operating condition of the bearing. The monitoring means can provide a reliable prediction of bearing failure by sensing excessive temperature.

The failure of a rolling element bearing can have serious consequences in many applications. Bearing failure may be caused by the ingress of dirt or foreign material, by excessive loading or by lubrication problems.

Usually bearing failure can occur quite rapidly and the detection of the faulty conditions giving rise to the failure is not always possible. A bearing made in accordance with the invention is especially useful in applications where it would not be feasible or desirable to halt the operation of the associated machinery or equipment to check the condition of a conventional bearing.

Examples of such applications include mass and process production plant, rolling mills and conveyors, pumps, motors and generators, textile machinery and automobile and aircraft engine and control mechanisms. The detection of excessive temperature by the monitoring means can indicate the onset of a faulty condition and enables the associated machinery to be temporarily halted to enable repair or replacement of the bearing in question before more serious damage can occur.

The invention may be understood more readily, and various other features of the invention may become apparent, from consideration of the following description.

Embodiments of the invention will now be described, by way of examples only, with reference to the accompanying drawing in which Figures 1 and 2 are each sectional side views of part of a rolling-element bearing constructed in accordance with the invention.

As depicted in Figure 1 of the drawing, a rolling element bearing is composed of inner and outer races 10, 11 with a plurality of rolling elements, here in the form of balls 12, retained by a cage 13 between the races 10, 11. Closure means in the form of a shield 14 extends between the races 10, 11 to seal off the interior of the bearing. In accordance with the invention, temperature monitoring means in the form of a sensor or transducer 15 is encapsulated in a flexible synthetic plastics material moulded to form a grommet 17 which snaps directly into a bore 16 in the shield 14. The transducer 15 itself may take the form of a thermistor and during operation of the bearing the change in the resistance of the thermistor, resulting from a change in temperature, may be used as a parameter to provide a control or indication signal representing the condition of the bearing. The sensor 15 may be used with control apparatus which thence indirectly senses any excessive rise in temperature indicating a faulty condition. A range of thermistors suitable for operating over a wide ambient temperature range enable the condition monitoring means to be specifically adapted to the predetermined operating environment of the bearing.

In Figure 2, like reference numerals de note like parts to Figure 2. In the bearing depicted in Figure 2, the exterior of the shield 14 supports condition monitoring means in the form of a thermochromic device 18 composed of a layer of material of a composition such as to change colour in dependence on a change in temperature. The device 18 may change colour progressively to provide a direct visual indication of temperature. Alternatively, indicia forming a scale may be provided on the exterior of the shield 14 and the device 18 may reflect ambient light from different regions thereof adjacent the scale to again register temperature. The device 18 may take the form of encapsulated liquid crystals.

A bearing made in according with the invention may have a single temperature monitoring means, such as the transducer or sensing device as described, or a plurality of individual temperature monitoring means mounted at different locations.

In general, the or each condition monitoring means can be fabricated quite cheaply and used without extensive modification of standard bearings. A reliable indication of the operating condition of a bearing can be provided by adopting monitoring means as described and bearing failure and expensive resultant damage can be prevented.

In the case where remote or automatic monitoring is desirable, the condition monitoring means of all or some of the bearings may be connected to apparatus designed to perform some control function. Such control apparatus may provide a fail safe control whereby machinery or equipment is automatically halted should the apparatus detect a fault signal derived from the condition monitoring means of any one of the bearings.

Wherein a large number of bearings are used, say in a conveyor, the control apparatus may be adapted to automatically scan the temperature monitoring means of the bearings in succession. Again the detection of a single fault condition may directly initiate the halting of the associated machinery.

WHAT WE CLAIM IS: 1. A rolling element bearing provided with in-situ temperature monitoring means on a closure means or shield or stationary race of the bearing, the operating condition of the bearing said monitoring means serving to provide an indication of the temperature prevailing within the region of the rolling elements to signify the operating condition of the bearing.

2. A bearing according to claim 1, wherein the monitoring means provides a direct visual indication of temperature.

3. A rolling element bearing substantially as described with reference to, and as illustrated in, Figures 1 or 2 of the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. note like parts to Figure 2. In the bearing depicted in Figure 2, the exterior of the shield 14 supports condition monitoring means in the form of a thermochromic device 18 composed of a layer of material of a composition such as to change colour in dependence on a change in temperature. The device 18 may change colour progressively to provide a direct visual indication of temperature. Alternatively, indicia forming a scale may be provided on the exterior of the shield 14 and the device 18 may reflect ambient light from different regions thereof adjacent the scale to again register temperature. The device 18 may take the form of encapsulated liquid crystals. A bearing made in according with the invention may have a single temperature monitoring means, such as the transducer or sensing device as described, or a plurality of individual temperature monitoring means mounted at different locations. In general, the or each condition monitoring means can be fabricated quite cheaply and used without extensive modification of standard bearings. A reliable indication of the operating condition of a bearing can be provided by adopting monitoring means as described and bearing failure and expensive resultant damage can be prevented. In the case where remote or automatic monitoring is desirable, the condition monitoring means of all or some of the bearings may be connected to apparatus designed to perform some control function. Such control apparatus may provide a fail safe control whereby machinery or equipment is automatically halted should the apparatus detect a fault signal derived from the condition monitoring means of any one of the bearings. Wherein a large number of bearings are used, say in a conveyor, the control apparatus may be adapted to automatically scan the temperature monitoring means of the bearings in succession. Again the detection of a single fault condition may directly initiate the halting of the associated machinery. WHAT WE CLAIM IS:
1. A rolling element bearing provided with in-situ temperature monitoring means on a closure means or shield or stationary race of the bearing, the operating condition of the bearing said monitoring means serving to provide an indication of the temperature prevailing within the region of the rolling elements to signify the operating condition of the bearing.
2. A bearing according to claim 1, wherein the monitoring means provides a direct visual indication of temperature.
3. A rolling element bearing substantially as described with reference to, and as illustrated in, Figures 1 or 2 of the accompanying drawings.
GB26010/78A 1978-05-31 1978-05-31 Bearing condition monitoring Expired GB1604990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26010/78A GB1604990A (en) 1978-05-31 1978-05-31 Bearing condition monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26010/78A GB1604990A (en) 1978-05-31 1978-05-31 Bearing condition monitoring

Publications (1)

Publication Number Publication Date
GB1604990A true GB1604990A (en) 1981-12-16

Family

ID=10236933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26010/78A Expired GB1604990A (en) 1978-05-31 1978-05-31 Bearing condition monitoring

Country Status (1)

Country Link
GB (1) GB1604990A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558223A1 (en) * 1984-01-17 1985-07-19 Roulements Soc Nouvelle Bearing with information sensor.
FR2574501A1 (en) * 1984-12-11 1986-06-13 Roulements Soc Nouvelle Roller-contact bearing with information sensor
AT392846B (en) * 1988-04-26 1991-06-25 Albert Hans Equipment for the visual display of the condition of rolling bearings
EP0535563A1 (en) * 1991-09-30 1993-04-07 Robert Bosch Gmbh Saw blade
FR2736979A1 (en) * 1995-07-21 1997-01-24 Roulements Soc Nouvelle Dynamometric sensor device and method for bearings and bearings
US6161962A (en) * 1996-09-13 2000-12-19 The Timken Company Bearing with sensor module
EP1431071A2 (en) * 2002-12-20 2004-06-23 Koyo Seiko Co., Ltd. Rolling bearing apparatus
WO2006064086A1 (en) * 2004-12-16 2006-06-22 Valtion Teknillinen Tutkimuskeskus Method and Apparatus for Monitoring a Contact between Two Surfaces
WO2008113330A1 (en) * 2007-03-21 2008-09-25 Schaeffler Kg Device for monitoring the operating temperature of a bearing
CN100442041C (en) * 2003-05-22 2008-12-10 日本精工株式会社 Load measuring device for rolling bearing unit and load masuring rolling bearing unit
WO2008116440A3 (en) * 2007-03-23 2009-04-02 Schaeffler Kg Bearing comprising a cover element
GB2517437A (en) * 2013-08-19 2015-02-25 Mahle Int Gmbh Sliding Engine Component
WO2017072143A1 (en) * 2015-10-30 2017-05-04 Robert Bosch Gmbh Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558223A1 (en) * 1984-01-17 1985-07-19 Roulements Soc Nouvelle Bearing with information sensor.
FR2574501A1 (en) * 1984-12-11 1986-06-13 Roulements Soc Nouvelle Roller-contact bearing with information sensor
AT392846B (en) * 1988-04-26 1991-06-25 Albert Hans Equipment for the visual display of the condition of rolling bearings
EP0535563A1 (en) * 1991-09-30 1993-04-07 Robert Bosch Gmbh Saw blade
FR2736979A1 (en) * 1995-07-21 1997-01-24 Roulements Soc Nouvelle Dynamometric sensor device and method for bearings and bearings
WO1997004295A1 (en) * 1995-07-21 1997-02-06 Snr Roulements Dynamometric detector device and method for bearings
US6161962A (en) * 1996-09-13 2000-12-19 The Timken Company Bearing with sensor module
EP1431071A2 (en) * 2002-12-20 2004-06-23 Koyo Seiko Co., Ltd. Rolling bearing apparatus
EP1431071A3 (en) * 2002-12-20 2006-11-22 JTEKT Corporation Rolling bearing apparatus
CN100442041C (en) * 2003-05-22 2008-12-10 日本精工株式会社 Load measuring device for rolling bearing unit and load masuring rolling bearing unit
WO2006064086A1 (en) * 2004-12-16 2006-06-22 Valtion Teknillinen Tutkimuskeskus Method and Apparatus for Monitoring a Contact between Two Surfaces
WO2008113330A1 (en) * 2007-03-21 2008-09-25 Schaeffler Kg Device for monitoring the operating temperature of a bearing
WO2008116440A3 (en) * 2007-03-23 2009-04-02 Schaeffler Kg Bearing comprising a cover element
GB2517437A (en) * 2013-08-19 2015-02-25 Mahle Int Gmbh Sliding Engine Component
WO2015024897A1 (en) * 2013-08-19 2015-02-26 Mahle International Gmbh Sliding engine component
CN105378309A (en) * 2013-08-19 2016-03-02 马勒国际有限公司 Sliding engine component
US10190631B2 (en) 2013-08-19 2019-01-29 Mahle International Gmbh Sliding engine component
WO2017072143A1 (en) * 2015-10-30 2017-05-04 Robert Bosch Gmbh Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles
US10846952B2 (en) 2015-10-30 2020-11-24 Robert Bosch Gmbh Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee