EP3011298A1 - Device and method for the non-destructive testing of a rolling bearing component - Google Patents
Device and method for the non-destructive testing of a rolling bearing componentInfo
- Publication number
- EP3011298A1 EP3011298A1 EP14736669.4A EP14736669A EP3011298A1 EP 3011298 A1 EP3011298 A1 EP 3011298A1 EP 14736669 A EP14736669 A EP 14736669A EP 3011298 A1 EP3011298 A1 EP 3011298A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- test device
- test
- component
- rolling bearing
- elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- G01M13/045—Acoustic or vibration analysis
-
- 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
-
- 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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
Definitions
- the invention relates to an apparatus and a method for non-destructive testing of a component of a rolling bearing having a plurality of rolling elements.
- Rolling bearings have an inner ring and an outer ring which are separated from one another by rolling bodies, for example balls, cylinders or cones.
- the rolling elements are mounted in a cage to keep the distance between them constant.
- the rolling elements roll on the inner ring, that is to say an inner running surface of the rolling bearing, and on the outer ring, that is to say an outer running surface of the rolling bearing.
- the inner ring and the outer ring and thus the treads are usually made of hardened steel to ensure low rolling friction and a long life of the bearings.
- the first object is achieved according to the invention with a device having the features of claim 1.
- the device for destruction-free testing of a component of a rolling bearing with a plurality of rolling elements wherein the component in the assembled state of the rolling bearing in a between is laterally accessible Lich lying adjacent two rolling elements, a insertable into the rolling bearing, on the component can be applied test device with at least one sensor to r testing the component.
- a device for destruction-free testing of a component of a rolling bearing having a plurality of rolling elements in which the component in the assembled state of the rolling bearing in an area lying between two adjacent rolling bodies, for example is accessible via a gap which is available for me at the side, comprises a test device which can be inserted into the rolling bearing via the gap and can be placed on the component with at least one sensor for testing the component. If the rolling elements are stored in a cage, the gap z. B. side, top and / or u nterhal b of the cage available.
- the component of a rolling bearing includes, for. B. treads, rolling elements or inner side surfaces of the bearing, even in the assembled state, so in the assembled and assembled state to check that the scholareinrichtu ng is designed such that they have a malll Ien access in a present between two adjacent rolling elements free Area can be inserted.
- the rolling bearing has a cage in which the rolling bodies are mounted, such a lateral access is, for example, a gap existing on the side, above or below the cage, which, for example, has a width of a few millimeters.
- the cage can bklafig both as a full cage or as Hal, so only as the rolling elements spaced rings, be formed.
- the test device thus has a smaller dimension than the lateral access or a lateral opening, eg.
- the destruction-free testing of the component, in particular the running surface can be done either before installation of the rolling bearing in a machine or system, such as a wind turbine, as well as already built bearings, ie in the assembled state, for the first time as Clearprüfu ng or in certain zeitl intervals Repeatedly, you can be guided without having to disassemble the rolling bearing.
- the downtime or revision time is considerably reduced because of the test, since the often time-consuming dismantling is no longer necessary, and on the other hand, recurring tests ensure better quality and thus lower failure probabilities of built-in bearings, since errors, weaknesses or changes in the components, in particular the tread, can be detected early.
- the test device can be applied to the component.
- the test device comprises a plurality of sensors arranged one behind the other in a longitudinal direction for testing the component.
- the test device thus has a plurality of sensors, which are arranged in a row next to each other or one behind the other transversely to the direction of the rolling elements.
- the longitudinal direction of the testing device is therefore to be understood as that direction which extends perpendicular to the running direction of the rolling elements when the testing device is in the test or end position.
- a test device in particular the running surfaces or a rolling surface of the rolling elements or lateral boundary surfaces can be checked.
- a larger test area in particular the entire tread in the radial direction can be tested.
- this device comprises an end member for fastening the test device to a part of the rolling bearing following a rotational movement of the rolling bearing. It is conceivable, however also to carry the test equipment by hand during the test during a rotary movement of the rolling bearing.
- the roller bearing has a cage
- the test device with the end link can be fastened to it.
- This may be, for example, an adapter molded in accordance with the shape of the cage, which adjoins the rear end of the test device and with which it can be fixed to the cage.
- the scholareinrichtu ng can thus, if it is in an end or test position, that is introduced into the rolling bearing and applied to the component, via the end member z. B. be attached to the cage.
- test device moves along with a movement or rotation of the roller bearing with the cage and thus z. B. ü over the entire tread is performed. Furthermore, the test device is held in its final or test position and is thus secured during the test ing against slipping or jamming in the rolling bearing.
- a separate position sensor arranged on the test device and a position sensor already integrated in the drive unit of the roller bearing can be used.
- the test device has a plurality of connecting elements connected to one another via connecting elements and in each case pivotably mounted to each other in an initial position.
- the sketcheinrichtu ng is constructed of a plurality of link elements that are verbu NEN together so that they can each be pivoted about a perpendicular to the Lssensrichtu ng the scholareinrichtu ng oriented pivot axis.
- the Gl iederieri are pivotally, for example, starting from a linear orientation in one direction in order to introduce the füreinrichtu ng in the rolling bearing, when the lateral access, z.
- the gap or the insertion direction along the gap and the running surface enclose an angle between them.
- Such a testing device or such a test object is therefore particularly suitable for testing running surfaces which lie in the same plane as the gap over which the test device is mounted. al introduced.
- the tread is accessible via the gap without a step or continuously. This is the case, for example, for an outer race of a tapered roller bearing.
- the length and number of the individual link elements can be adapted to the geometry of the running surface as well as to the geometry of the lateral access or gap or an edge to be overcome.
- the connecting elements in particular plug-in means for producing a plug connection in such a way that the link elements are aligned in an end position in each other plugged plug-in means to each other in a straight line.
- the link elements are so in the final position linear to each other and arranged directly adjacent to each other and a pivoting movement of the link elements is not possible.
- end position is to be understood as meaning the position which the testing device for checking the component, eg. B. the tread, so the test position, holds.
- the plug-in means are designed, for example, such that when a force is exerted counter to the insertion direction of the test device, which is effected, for example, by a free end of the test device being supported on a stop face of the cage opposite the gap, the link elements abut one another or into one another be pushed, the test device is thereby stiffened and thus brought into the final position.
- an introduction into the gap is facilitated by the link elements. If, after insertion, ie in the end or test position, the link elements are aligned in a straight line and the plug-in means are inserted into one another, it is ensured that the test device and thus the sensors lie flat or flush against the component to be tested.
- the plug-in connection is released, so that the individual link elements are again pivotally mounted to each other and the angle enclosed by tread and gap angle can be overcome.
- the connecting elements or the plug-in means are therefore designed to be releasable to train.
- a structurally simple way for such a plug-in connection is present if this is a tongue and groove connection.
- at least one groove is arranged on the one end face of a link element, which is arranged between two further link elements, and at least one spring on the opposite end face of the same link element. In the end position, groove and tongue of each adjacent link elements, for example, completely into each other, so that the link elements are rectilinear and immediately adjacent to each other.
- End member members have only one groove or a spring on one, the adjacent member facing the end face.
- the fasteners may include other connecting elements in addition to the plug-in means such. As a slot with a pin, which allows a pivoting movement of each adjacent link elements and holds them together at the same time.
- a link element arranged at the free end of the test device has a stop element for supporting the test device on a stop face opposite the lateral access or gap, for example.
- B. a stop surface of the cage, on.
- arranged in the insertion direction at the front end member element comprises means with which the test device inside the bearing, z. B. on the inner cage, can support. If the test device is inserted so far that the element arranged at the free end is in contact with the stop surface and is supported on it, the link elements are pushed together until the test device is stiffened and applied to the component. The plug connection is effected by a force acting against the insertion direction, which is transmitted via the stop element on the link elements.
- the stop element is a spring element which is constructed from two legs, one of which is fixed on a flat side of the link element and the other protrudes from the flat side of the link element.
- the spring element is, for example, fixed on a flat side of the link element such that the plane defined by the legs is oriented perpendicular to the flat side. The spring element is thus fixed with a leg on the opposite side of the sensor flat side of the link member, the other leg protrudes from this flat side and is supported on the stop surface.
- the test device comprises at least one test ruler, which is arranged expediently on a guide rail.
- the test ruler in an initial position, the test ruler is arranged in the longitudinal direction of the guide rail on this, in an intermediate or end position, the test ruler is spaced from the guide rail.
- the test ruler is connected, for example, with the guide bar in such a way that it can be raised perpendicular to a flat side of the guide ruler.
- test device can in particular treads that are not in the same plane as the gap over which the tester is introduced to be tested. This is the case, for example, for an inner running surface of a tapered roller bearing.
- treads that are not in the same plane as the gap over which the tester is introduced to be tested. This is the case, for example, for an inner running surface of a tapered roller bearing.
- the tread is so accessible via the gap only via a paragraph or a step.
- the test ruler via a movement executed perpendicular to the guide rail.
- the scholarlineal is connected via at least one bridge hinged to the guide rail. It is particularly advantageous if the Test ruler is coupled via the at least one web in such a way with the guide rail, that the striglineal is issued in the longitudinal direction of the guide rail and always parallel to this.
- the test ruler is connected to the guide rail via at least one web which is pivotable about a pivot axis oriented perpendicular to an insertion or longitudinal direction of the test Ruler, wherein the at least one web in the folded state, ie in an initial position, ideally is completely arranged in the guide rail.
- the test ruler is thus coupled with the guide rail via the webs such that it can be folded out of the guide rail and folded back again.
- the pivoting movement of the webs is carried out in particular so that the test ruler in the longitudinal direction of the guide rail and always moved parallel to this or issued.
- Test ruler, guide rail and bridge are thus coupled in the manner of a lever mechanism.
- the webs When inserting the sketchlineals by the lateral access or gap in the rolling bearing, ie in the starting position, the webs are folded so that the fürlineal is almost completely arranged on the guide rail or the fürlineal does not protrude from the guide rail. In an intermediate position and end or test position, the webs are at least partially unfolded, so that the test ruler protrudes from the guide rail and has a distance therefrom. The test ruler is thus again able to be applied to the running surface, even if it is not in the same plane as the gap or is not accessible in a straight line over it.
- a spring element for issuing the test ruler is arranged from an initial position into at least one intermediate position between the test ruler and the guide rail.
- the test ruler is thus preloaded in the folded state.
- This can for example by arranged between the test ruler and guide bar springs or by existing between web and educalineal spring elements, such as a spring plate, one leg on the web and whose second leg is fixed to the test ruler, be realized.
- test object comes into contact with an inner shoulder opposite the outer shoulder, it will continue to be issued, ie moved completely into the end position and applied to the tread.
- spring element is designed accordingly or adapted to the roller bearing and the running surface to be tested, the test object can also be moved directly into an end or test position with the aid of the spring element.
- the connecting elements have spring elements in such a way that the link elements are aligned rectilinearly relative to one another in a relaxed state.
- adjacent element elements are connected, for example, via spring elements which are arranged parallel to the flat sides of the element elements and are fixed to them.
- the spring elements also allow, albeit limited, pivotability of the individual element elements to each other, so that the test device can be introduced into the roller bearing via the lateral access or gap.
- the device comprises an intermediate element which is arranged between the test device and an end member and is connected in each case via at least one spring element to the test device and the end member.
- the intermediate member is aligned in a relaxed state almost perpendicular to the test device and a front portion of the end member.
- the at least one sensor is an eddy-current sensor or an ultrasonic sensor or an ultrasound transducer. It is also possible combinations of different types of sensors, for example, two ultrasonic and two eddy current sensors to integrate in the same test facility.
- the component or inner component to be tested with the device is in particular a side surface of an inner ring and / or a side surface of an outer ring and / or a rolling surface of a rolling element and / or an inner and / or outer tread.
- the second object is achieved according to the features of claim 18 with a method for non-destructive testing of a component of a rolling bearing having a plurality of rolling elements, wherein the component is in the assembled state of the rolling bearing in a lying between two adjacent rolling elements range laterally accessible, with a device according to one of claims 1 to 17, wherein a test device with at least one sensor for testing the component is laterally inserted into the rolling bearing and applied to the component.
- a first and a second test device are used, wherein the first test device for testing the component of the rolling bearing in the rolling bearing and the second testing device outside of the rolling bearing for testing a reference component, so for example a reference tread is operated. Subsequently, the measured values of both test facilities can be compared.
- the use of such a "reference or control probe" makes it possible, for example, to make a statement about the quality of the coupling of the first testing device in the rolling bearing.
- Fig. 1 is a sectional view of a rolling bearing in the assembled state in an area lying between two adjacent rolling elements with a device for checking a running surface, which is in the test position,
- Fig. 2 is a sectional view of the rolling bearing along the line II-II in FIG. 1,
- FIG. 3 shows a first embodiment of a test device according to the invention in an end position in a perspective view
- Fig. 4 shows a detailed view of the first embodiment, in which the plug-in means are designed as a tongue and groove connection,
- Fig. 5 shows a test device according to a second embodiment of the invention in an end position in a perspective illustration
- FIG. 6 shows a test device according to a third embodiment of the invention in an end position in a perspective view
- Fig. 7 is a sectional view of a rolling bearing in the assembled state, in which the test areas that can be tested with a test device are identified.
- a roller bearing 2 for example a tapered roller bearing, comprises a plurality of roller bodies 6 mounted in a cage 4a, 4b, which are designed as conical rollers in the case of a tapered roller bearing.
- the running surface 8a, 8b of the rolling bearing 2 is to be tested.
- a testing device 14 which can be tested in a test area 68, 69, 70 - in FIG. 7 hatched marked - are arranged. Due to the use of modified test devices 14, depending on the available free space in the test area 68, 69, 70 existing inner surfaces can be reached and checked from there.
- the roller bearing 2 is in the assembled state, so that the running surface 8a, 8b of the roller bearing 2 is located in a region 10 lying between two adjacent rolling elements 6 - see FIG. 2 - is laterally accessible via an above or below the cage 4a, 4b existing gap 12a, 12b.
- a device for nondestructive testing of the component in this case the running surface 8a, 8b, comprises a test device 14 which can be introduced into the roller bearing 2 via the gap 12a, 12b and can be applied to the running surface 8a, 8b and which has a sensor 16 for testing the tread 8a, 8b has.
- FIG. 1 shows in dashed lines two possible embodiments of the test device 14 both for testing an outer running surface 8a and a testing device 14 for testing an inner running surface 8b which are completely inserted into the rolling bearing 2 and thus in the test position or end position.
- the test device 14 is applied to the tread 8a, 8b, so that they are almost completely flat on the running surface 8a, 8b to be tested.
- the test device comprises a plurality of sensors 16- in FIG. 1 also indicated by dashed lines - the transmitting and receiving surfaces to the tread 8a, 8b point and thus are aligned parallel to the tread 8a, 8b.
- the plurality of sensors 16 are, for example, arranged one behind the other in a longitudinal direction L relative to the alignment of the test device 14 in the end or test position shown in FIG. 1 and, when the test device 14 is applied to the running surface 8a, 8b, ie in test position, a constant or equal distance to the tread 8a, 8b.
- the device for nondestructive testing of the tread at its rear end 42 comprises an end member 44 for fastening the testing device 14 in the test position on the cage 4a, 4b.
- the test device 14 is thus fixed to the cage 4a, 4b and is guided during a rotational movement of the rolling bearing 2 over the entire running surface 8a, 8b.
- the testing device 14 comprises a plurality of link elements 20 which are connected to one another such that they can each be pivoted about a pivot axis S and aligned with one another in such a way that they are inserted in the insertion direction E into the gap 12a can.
- the link elements 20 thus form a link chain with mutually movable link elements 20.
- the adjacent to the end member 44 link member 20 is pivotally connected thereto also about a pivot axis S.
- the link elements 20 in this embodiment are mutually pivotable in order to overcome an angle a, the tread 8a and the gap 12a can form. In the test position (FIGS.
- the individual link elements 20 are aligned linearly relative to one another.
- the link element 20 adjacent the end link 44 and the end link 44 in test position enclose therebetween an angle ⁇ 'corresponding to the angle ⁇ between the running surface 8a and the gap 12a ensures that the test device 14 is applied in test position to the tread 8a or is pressed against the tread 8a and rests almost flat on this.
- a link element 20 arranged at the free end 30 of the test device 14 has a stop element 32 for supporting the test device 14 on a stop face 34 of the cage 4b opposite the gap 12a, 12b.
- the stop element 32 is formed as shown in FIG. 3 as a spring element, which is composed of two legs 38 a, 38 b.
- the one leg 38a is fixed on a flat side 40 of the link element 20 such that the plane spanned by the legs is oriented perpendicular to the flat side 40. In other words, the leg 38b protrudes from the flat side 40 of the link element 20. If the test device 14 is inserted far enough into the roller bearing 2, the abutment element 32 is supported in the illustrated embodiment with the leg 38b on the abutment surface 34 of the cage 4b, the link elements 20 are linearly aligned with each other and the test device 14 thereby to the tread 8a, 8b pressed.
- the link elements 20 are connected to each other via connecting elements 18, which allow in a starting position and for introducing the test device 14 via the gap 12a, 12b in the rolling bearing 2, a pivoting movement of the individual link elements 20 to each other.
- the connecting elements 18 have plug-in means 22, for example, with which the link elements 20 are aligned rectilinearly relative to one another in an end position (FIGS. 1 and 3) and inserted into one another.
- the plug-in means 22 of the connecting elements 18 are shown in FIG. 4 preferably as a groove 22a and a spring 22b, the connector thus configured as a tongue and groove connection.
- the connecting element 18 comprises a pin 24 which is inserted into a slot 26 of a adjacent link element 20 is inserted and the individual link elements 20 in the initial position, ie in a position in which the link elements 20 can be pivoted to each other, holds together.
- the connecting element 18 is formed, for example on an end face of the link member 20 as protruding from this extension, which includes both the spring 22b and the pin 24.
- a test device 14 in a second embodiment comprises a test ruler 46, which is arranged on a guide rail 48.
- the test ruler 46 In a starting position - not shown here - the test ruler 46 is arranged in the longitudinal direction L on the guide rail 48.
- the test ruler 46 has a U-shaped cross section, so that it laterally surrounds the guide rail 48 with its legs 76a, 76b.
- the test ruler 46 is perpendicular to a flat side 50 of the guide bar 48 exposed connected to this.
- the test ruler 46 is connected via two webs 52 hingedly connected to the guide bar 48, located in an end or at least in an intermediate position and is thus spaced from the guide rail 48.
- the test ruler 46 is so coupled via the two webs 52 with the guide bar 48 that it is issued in the longitudinal direction L of the guide rail 48 and always parallel to this.
- the test device 14 may include a second test ruler 46 - shown in dashed lines in Fig. 5, which can be issued in the same way in the direction of one of the first tread 8a, 8b opposite second tread 8a, 8b, so that an examination of both treads 8a, 8b simultaneously only a tester 14 can be done.
- the test ruler 46 can each comprise at its two ends a section 70 which can be unfolded into a test position oriented perpendicular to the test ruler 46.
- Fig. 5 is a section 70 with three sensors 16 shown in phantom, with the z. B. can be done an examination of an inner surface of the bearing ring and the bearing shell.
- the section 70 is connected, for example via a joint with the test ruler 58 and in the longitudinal direction L of the guide rail L slidably disposed on this, so that the portion 70 is unfolded at a deployment movement of the test ruler 58 and aligned perpendicular to the test ruler.
- at least one spring element 54 for issuing the test ruler 46 is arranged from the starting position into at least one intermediate position (FIG. 5).
- the spring element 54 is composed of two legs, one of which is fixed to the lower flat side 56 of the test piece 46 and the other to the web 52.
- test ruler 46 When inserting the test ruler 46 over the gap 12a, 12b in the rolling bearing 2, the test ruler 46 rests on the guide rail 48. If the test ruler 46 has overcome a step 72 or a shoulder existing between the gap 12a, 12b and the running surface 8a, 8b, the test ruler 46 is exposed by the spring element 54 from the starting position at least to an intermediate position. If the test ruler 46 abuts a stop surface 74 opposite the step 72 and the guide rail 48 is moved further in the insertion direction E, the webs 52 are further unfolded, the test ruler 46 is moved to the end or test position and applied to the running surface 8a, 8b and pressed.
- a plurality of sensors 16 for checking the tread 8a, 8b are arranged on the upper flat side 58 of the test piece 46. These sensors 16 are designed for example as ultrasonic sensors or ultrasonic transducers or eddy current sensors.
- an end member 44 is arranged at the rear end 42 of the testing device 14. The end member 44 is configured according to the shape of the cage 4a, so that it can be fixed thereto.
- FIG. 6 shows a third embodiment of the test device 14, which comprises a plurality of link elements 20. Furthermore, the test device 14 has an end member 44 which according to FIG. shaped portion 44a for fixing the tester 14 on the cage 4a and a thereof in the direction of the test device 14 and almost parallel to this extending rectilinear portion 44b includes. Between the testing device 14 and the end member 44 there is an intermediate member 64, which connects the testing device 46 and the end member 44. Between the test device 14 and the intermediate member 64 and between the intermediate member 64 and the portion 44b of the end member 44 are respectively spring elements 66, for example coil springs, arranged, which are in Fig. 6 in the relaxed state.
- spring elements 66 for example coil springs
- the intermediate member 64 is then aligned almost perpendicular to the portion 44b of the end member 44 and the test device 14.
- the relaxed state is that orientation that occupies the test device both in a starting position, ie outside of the rolling bearing, as well as in an end or test position.
- the intermediate member 64 may also include sensors 16 for testing an inner side surface of the rolling bearing 2 adjoining the gap 12a, 12b.
- the link elements 20 are interconnected by means of spring elements 82, in particular as spring plates, designed connecting elements 18 which are fastened with screws 86.
- This spring plates 82 cause a rectilinear, yet easily pivotal alignment of the link elements 20 to each other.
- a groove 84 for guiding cables or signal lines is provided on the flat side of the testing device 14 remote from the running surface 8b.
- a magnet 78 is arranged on its flat side facing the running surface 8b. This serves to press the test device 14 against the running surface 8b and to fix it there during the test, in order to prevent the test device 14 from "lifting off” the running surface 8b, thereby ensuring good contact between the test bead 46 and the running surface 8b.
- the magnet 78 is designed such that no interference occurs when using eddy current sensors it is also conceivable to attach 20 magnets to several or all members elements.
- the testing device 14 comprises at its free end 30 an additional link element 20, with sensors 16 for checking the stop face 74 opposite the access or the gap 12, 12b.
- the additional link element 20 is movable, e.g. via a joint which, starting from a rectilinear orientation, can only be pivoted in one direction, is connected to the adjoining element 20, so that the additional element 20 in the roller bearing is aligned perpendicular to the remaining elements 20, when the test device 14 on the Stop surface 74 abuts.
- the checking device 14 or the link elements 20 are rectilinear and the intermediate link 64 is aligned perpendicular to the end link 44 and to the testing device 14.
- the device is thus in the relaxed state.
- the intermediate member 64 is now no longer perpendicular, but at least approximately parallel to the test device 14 and the rectilinear portion 44b of the end member 44 aligned.
- the springs 66 are now stretched. If the test device 14 is now introduced so far that the intermediate member 64 is located in the rolling bearing 2, the device is independent or only by the springs 66 again at right angles and the tester 14 is applied to the tread or is pressed against them.
- test device 14 When the test device 14 is withdrawn from the roller bearing 2, it is aligned in a straight line again by pulling, ie the springs 66 are tensioned again and can thus be removed from the roller bearing via the gap 12b.
- the test device 14 with the at least one sensor 16 is inserted laterally into the roller bearing 2 and applied to the component to be tested, in particular the running surface 8a, 8b.
- a scholareinrichtu ng 14 individually to m use come to m others is also a simultaneous use of multiple testers 14 to z.
- an inner and an outer running surface 8a, 8b of the rolling bearing 2 can be checked simultaneously and, for example, a common end member 44 can be used for both testing devices 14.
- test device 14 advantageously has connections 80 for the contact of the at least one sensor 16, to energetically supply them and to transmit measurement and control signals.
- the Signalü bertragu ng and control of the sensors 14 can thereby both ü over contacted Anschlußleitu lengths as well as via radio or similar. respectively .
- test devices 14 g are used at the same time, wherein a test device for testing a real running surface 8a, 8b in a rolling bearing 2, and the other test device 14 for testing a Reference tread is used on an adjustment or reference body.
- difference values between the measured signals can form statements about the quality of the test, for example the coupling of the sensors 16 to the running surface 8a, 8b.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013106470.1A DE102013106470A1 (en) | 2013-06-20 | 2013-06-20 | Device and method for nondestructive testing of a component of a rolling bearing |
PCT/EP2014/063021 WO2014202752A1 (en) | 2013-06-20 | 2014-06-20 | Device and method for the non-destructive testing of a rolling bearing component |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3011298A1 true EP3011298A1 (en) | 2016-04-27 |
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ID=51162715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14736669.4A Withdrawn EP3011298A1 (en) | 2013-06-20 | 2014-06-20 | Device and method for the non-destructive testing of a rolling bearing component |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3011298A1 (en) |
CN (1) | CN105358953A (en) |
DE (1) | DE102013106470A1 (en) |
WO (1) | WO2014202752A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015201135A1 (en) * | 2015-01-23 | 2016-07-28 | Federal-Mogul Wiesbaden Gmbh | Method and device for testing bearing shell sections, in particular halves by means of eddy current measurement |
EP3290894B1 (en) * | 2016-09-06 | 2022-12-07 | General Electric Technology GmbH | Inspection probe |
DE102017105576A1 (en) * | 2017-03-15 | 2018-09-20 | Thyssenkrupp Ag | Bearing arrangement and wind turbine |
CN107387551A (en) * | 2017-07-05 | 2017-11-24 | 如皋市非标轴承有限公司 | A kind of intelligence dress replacement bearing |
DE102018103258B4 (en) | 2018-02-14 | 2020-01-23 | Framatome Gmbh | Ultrasonic test device and method for producing an ultrasonic test head for such an ultrasonic test device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0529354A1 (en) * | 1991-08-30 | 1993-03-03 | Fried. Krupp AG Hoesch-Krupp | Device for monitoring rolling contact bearings |
EP1972918A2 (en) * | 2007-03-20 | 2008-09-24 | ThyssenKrupp Fördertechnik GmbH | Method and device for inspecting the path of large roller bearings |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6161962A (en) * | 1996-09-13 | 2000-12-19 | The Timken Company | Bearing with sensor module |
US6535135B1 (en) * | 2000-06-23 | 2003-03-18 | The Timken Company | Bearing with wireless self-powered sensor unit |
JP4013056B2 (en) * | 2002-12-18 | 2007-11-28 | 日本精工株式会社 | Bearing load condition diagnosis method |
ITTO20030886A1 (en) * | 2003-11-07 | 2005-05-08 | Skf Ab | BEARING GROUP FOR RAILWAYS. |
FR2871567B1 (en) * | 2004-06-11 | 2006-11-24 | Snecma Moteurs Sa | NON-DESTRUCTIVE CONTROL INSTALLATION OF A WORKPIECE |
US7843192B2 (en) * | 2007-08-16 | 2010-11-30 | National Research Council Of Canada | Kit, method and apparatus for monitoring operation of a bearing assembly, method for producing said apparatus, and bearing assembly with a condition monitor |
DE102008018611A1 (en) | 2008-04-11 | 2009-10-15 | Riemer, Detlef, Prof. Dr.-Ing. | Contact measuring method for surveying surface area of operating roller bearings and roller guides, involves detecting symptoms of wear and fatigue by tactile surface sensor integrated in roller bearings and roller guides |
DE202008010292U1 (en) * | 2008-08-01 | 2009-01-08 | Bip-Industrietechnik Gmbh | Device for non-destructive material testing of a test object and test bench |
DE112010000023B4 (en) * | 2009-12-17 | 2021-09-30 | Nsk Ltd. | A method for predicting a remaining life of a bearing, an apparatus for diagnosing a remaining life of a bearing and a bearing diagnostic system |
FR2976672B1 (en) * | 2011-06-20 | 2014-11-28 | Airbus Operations Sas | DEVICE FOR DETECTING DEFECTS IN REINFORCEMENT |
-
2013
- 2013-06-20 DE DE102013106470.1A patent/DE102013106470A1/en not_active Withdrawn
-
2014
- 2014-06-20 WO PCT/EP2014/063021 patent/WO2014202752A1/en active Application Filing
- 2014-06-20 CN CN201480035153.8A patent/CN105358953A/en active Pending
- 2014-06-20 EP EP14736669.4A patent/EP3011298A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0529354A1 (en) * | 1991-08-30 | 1993-03-03 | Fried. Krupp AG Hoesch-Krupp | Device for monitoring rolling contact bearings |
EP1972918A2 (en) * | 2007-03-20 | 2008-09-24 | ThyssenKrupp Fördertechnik GmbH | Method and device for inspecting the path of large roller bearings |
Non-Patent Citations (1)
Title |
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See also references of WO2014202752A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014202752A1 (en) | 2014-12-24 |
CN105358953A (en) | 2016-02-24 |
DE102013106470A1 (en) | 2014-12-24 |
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