DE102006021707A1 - Bearing arrangement, has spindle supported by using antifriction bearing and piezoelectric sensor for measuring axle loads acting on antifriction bearing, where sensor circularly surrounds spindle pin of spindle - Google Patents
Bearing arrangement, has spindle supported by using antifriction bearing and piezoelectric sensor for measuring axle loads acting on antifriction bearing, where sensor circularly surrounds spindle pin of spindle Download PDFInfo
- Publication number
- DE102006021707A1 DE102006021707A1 DE102006021707A DE102006021707A DE102006021707A1 DE 102006021707 A1 DE102006021707 A1 DE 102006021707A1 DE 102006021707 A DE102006021707 A DE 102006021707A DE 102006021707 A DE102006021707 A DE 102006021707A DE 102006021707 A1 DE102006021707 A1 DE 102006021707A1
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- Germany
- Prior art keywords
- bearing
- sensor
- spindle
- arrangement according
- bearing arrangement
- 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- Withdrawn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
- 238000005096 rolling process Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000036316 preload Effects 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
-
- 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
- F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
-
- 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
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
- G01L5/0019—Force sensors associated with a bearing by using strain gages, piezoelectric, piezo-resistive or other ohmic-resistance based sensors
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Rolling Contact Bearings (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Gebiet der ErfindungTerritory of invention
Die Erfindung betrifft eine Lageranordnung mit einem piezoelektrischen Sensor, der zur Erfassung von auf ein Wälzlager wirkenden Belastungen vorgesehen ist.The The invention relates to a bearing arrangement with a piezoelectric Sensor designed to detect loads acting on a rolling bearing is.
Hintergrund der Erfindungbackground the invention
Ein
piezoelektrisches Meßsystem
für Wälzlager
ist beispielsweise aus der
Aufgabe der ErfindungTask of invention
Der Erfindung liegt die Aufgabe zugrunde, die Einsatzmöglichkeiten von piezoelektrischen Sensoren in der Wälzlagertechnik zu erweitern.Of the Invention is the object of the application from piezoelectric sensors in rolling bearing technology.
Zusammenfassung der ErfindungSummary the invention
Diese Aufgabe wird erfindungsgemäß gelöst durch eine Lageranordnung mit den Merkmalen des Anspruchs 1. Die Lageranordnung umfasst eine mittels eines Wälzlagers gelagerte Spindel, wobei ein zur Messung von auf das Wälzlager wirkenden Axialbelastungen geeigneter piezoelektrischer Sensor einen Spindelzapfen der Spindel ringförmig umgibt. Als Wälzlager für die Spindellagerung ist vorzugsweise ein zweireihiges Axialschrägkugellager vorgesehen, alternativ ist beispielsweise ein Nadel-Axial-Zylinderrollenlager verwendbar.These The object is achieved by a bearing assembly with the features of claim 1. The bearing assembly includes one by means of a rolling bearing mounted spindle, one being used to measure on the rolling bearing acting axial loads suitable piezoelectric sensor a Spindle pin of the spindle ring-shaped surrounds. As a rolling bearing for the Spindle bearing is preferably a double-row axial angular contact ball bearing provided, alternatively, for example, a needle-axial cylindrical roller bearing usable.
Der piezoelektrische Sensor ist bevorzugt in der Art einer Unterlegscheibe zwischen einem Außenring des Wälzlagers und einer Stützkonstruktion angeordnet und dabei in Axialrichtung der Spindel vorgespannt. Die Vorspannkraft ist dabei derart einstellbar, dass unabhängig davon, in welcher Richtung Axialkräfte auf die Spindel wirken, die resultierende Kraft, welche auf den piezoelektrischen Sensor wirkt, keine Richtungsumkehr erfährt. Die axiale Vorspannung des piezoelektrischen Sensors ist mittels Schrauben bewirkbar, die durch Öffnungen im Sensor gesteckt sind.Of the piezoelectric sensor is preferably in the manner of a washer between an outer ring of the rolling bearing and a support structure arranged while biased in the axial direction of the spindle. The preload force is adjustable so that regardless of which direction axial forces the spindle act, the resultant force acting on the piezoelectric Sensor works, no direction reversal experiences. The axial preload of the piezoelectric sensor is effected by means of screws, the through openings are inserted in the sensor.
Der in die Lageranordnung integrierte piezoelektrische Sensor eignet sich beispielsweise für die Messung von Bearbeitungskräften sowie Massenträgheits- und Gewichtskräften, welche in einer Werkzeugmaschine auf ein Lager übertragen werden. Ebenso ist der piezoelektrische Sensor geeignet, drohende Schädigungen einer Spindel oder der zugehörigen Lagerung zu detektieren. Darüber hinaus ermöglicht die Kraftmessung an der Spindellagerung mittels des piezoelektrischen Sensors eine Überwachung und/oder Steuerung von Prozessen wie beispielsweise Einpressvorgängen, die mit einer elektromotorisch angetriebenen Spindelpresse durchgeführt werden. In allen Anwendungsfällen zeichnet sich der einen Bestandteil der Lageranordnung bildende piezoelektrische Sensor durch einen sehr geringen Platzbedarf, einfachste Montierbarkeit, allenfalls niedrige Hysterese sowie eine hohe Stör- und Überlastfestigkeit aus.Of the in the bearing assembly integrated piezoelectric sensor is suitable for example for the measurement of machining forces and inertia and weight forces which be transferred to a warehouse in a machine tool. Likewise is the piezoelectric sensor suitable, impending damage a spindle or the associated To detect storage. About that also allows the force measurement at the spindle bearing by means of the piezoelectric Sensors a monitoring and / or control of processes such as press-in operations, the be performed with an electric motor driven screw press. Draws in all applications itself the part of the bearing assembly forming piezoelectric Sensor by a very small footprint, easy mounting, if necessary low hysteresis and high resistance to interference and overload.
Für die Herstellung piezosensitiver Strukturen des Sensors ist besonders das Siebdruckverfahren geeignet. Die hierbei aufgebrachten Sensorstrukturen werden beispielsweise im Durchlaufverfahren bei ca. 650°C bis 800°C eingebrannt. Unabhängig vom Herstellungsverfahren weist der piezoelektrische Sensor vorzugsweise mehrere konzentrische Sensorringe oder Sensorsegmente auf, die zwischen zwei parallelen Scheiben angeordnet sind. Als Scheiben, die als kraftübertragende Teile des piezoelektrischen Sensors konzentrisch zur Spindel angeordnet sind, werden bevorzugt geschliffene und/oder gestrahlte Stahlscheiben verwendet. Damit ist eine ausreichende Formgenauigkeit sowie eine gute Haftfähigkeit gegeben. Als Substrate, die insbesondere Widerstands- und Leiterstrukturen tragen, sind auch keramische Werkstoffe verwendbar.For the production Piezosensitiver structures of the sensor is particularly the screen printing process suitable. The sensor structures applied in this case become, for example in a continuous process at approx. 650 ° C up to 800 ° C baked. Independent of Manufacturing method, the piezoelectric sensor preferably several concentric sensor rings or sensor segments, between two parallel discs are arranged. As discs, as a force-transmitting Parts of the piezoelectric sensor are arranged concentrically to the spindle, are preferably ground and / or blasted steel discs used. This is a sufficient dimensional accuracy and a good adhesion given. As substrates, in particular resistance and conductor structures ceramic materials can also be used.
In vorteilhafter Ausgestaltung weist der piezoelektrische Sensor zusätzlich zu einem mechanisch belasteten Piezoelement ein mechanisch unbelastetes, insbesondere eine Temperaturkompensation ermöglichendes Piezoelement auf. In besonders bevorzugter Weise sind die beiden Piezoelemente als konzentrische, um den Wellenzapfen gelegte Ringe ausgebildet und hierbei – mit Ausnahme der mechanischen Belastung – praktisch vollkommen identischen Umgebungsbedingungen ausgesetzt.In Advantageous embodiment, the piezoelectric sensor in addition to a mechanically loaded piezo element a mechanically unloaded, in particular a temperature compensation enabling piezoelectric element. In a particularly preferred manner, the two piezo elements are as concentric formed around the shaft journal rings and formed here - with Exception of mechanical stress - practically completely identical Exposed to ambient conditions.
Nach einer bevorzugten Weiterbildung ist der piezoelektrische Sensor mit einem starren oder flexiblen Schaltungsträger verbunden. Der Schaltungsträger sowie auf diesem angeordnete elektronische Bauelemente, die insbesondere der Signalverstärkung und -konditionierung dienen, können von einem Metall- oder Kunststoffgehäuse umschlossen sein. Eine besonders gute Schutzwirkung bei gleichzeitig rationellen Herstellungsmöglichkeiten ist gegeben, wenn der Schaltungsträger einschließlich der elektronischen Bauelemente mit Kunststoff umspritzt ist. An diese Kunststoffumhüllung ist vorzugsweise ein Gehäuse eines Steckverbinders einstückig angeformt. Umgekehrt ausgedrückt ist damit eine elektronische Baueinheit in den Steckverbinder integriert.According to a preferred embodiment, the piezoelectric sensor is connected to a rigid or flexible circuit carrier. The circuit carrier and arranged on this electronic components, which are used in particular the signal amplification and conditioning can be enclosed by a metal or plastic housing. A particularly good protective effect at the same time rational production possibilities is given if the circuit carrier including the electronic components is encapsulated in plastic. To this plastic sheath is preferably a Ge housing of a connector integrally formed. Conversely, an electronic unit is thus integrated into the connector.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Hierin zeigen:following is an embodiment of Invention explained in more detail with reference to a drawing. Herein show:
Kurze Beschreibung der ZeichnungShort description the drawing
Ausführliche Beschreibung der ZeichnungFull Description of the drawing
Die
Zur
Messung der resultierenden Axialkräfte zwischen dem Wälzlager
Der
genauere Aufbau der Sensorstrukturen
Die
mechanisch nicht belasteten Sensorring
- 11
- Lageranordnungbearing arrangement
- 22
- Spindelspindle
- 33
- Stützkonstruktionsupport structure
- 44
- Spindelzapfenspindle pin
- 55
- Wälzlagerroller bearing
- 66
- Schraubescrew
- 77
- Innenringinner ring
- 88th
- Außenringouter ring
- 99
- KugelBullet
- 1010
- Sensorsensor
- 1111
- Öffnungopening
- 1212
- piezosensitive Strukturpiezo-sensitive structure
- 1313
- Scheibedisc
- 1414
- Scheibedisc
- 1515
- FlachbandkabelRibbon cable
- 1616
- Elektronikbaugruppeelectronics assembly
- 1717
- Auswerteeinheitevaluation
- 1818
- SteckverbinderConnectors
- 1919
- Bauteilcomponent
- 2020
- Schaltungsträgercircuit support
- 2121
- KunststoffumhüllungPlastic covering
- 2222
- Gehäusecasing
- 2323
- Stiftpen
- 2424
- Sensorringsensor ring
- 2525
- Sensorringsensor ring
- 2626
- Polymermaterialpolymer material
- 2727
- Zwischenscheibewasher
- DD
- Durchmesserdiameter
- FB F B
- Axialbelastungaxial load
- FV F V
- Vorspannkraftpreload force
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006021707A DE102006021707A1 (en) | 2006-05-10 | 2006-05-10 | Bearing arrangement, has spindle supported by using antifriction bearing and piezoelectric sensor for measuring axle loads acting on antifriction bearing, where sensor circularly surrounds spindle pin of spindle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006021707A DE102006021707A1 (en) | 2006-05-10 | 2006-05-10 | Bearing arrangement, has spindle supported by using antifriction bearing and piezoelectric sensor for measuring axle loads acting on antifriction bearing, where sensor circularly surrounds spindle pin of spindle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006021707A1 true DE102006021707A1 (en) | 2007-11-15 |
Family
ID=38579911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006021707A Withdrawn DE102006021707A1 (en) | 2006-05-10 | 2006-05-10 | Bearing arrangement, has spindle supported by using antifriction bearing and piezoelectric sensor for measuring axle loads acting on antifriction bearing, where sensor circularly surrounds spindle pin of spindle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006021707A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008006934A1 (en) * | 2008-01-28 | 2009-07-30 | Aker Mtw Werft Gmbh | Device and method for evaluating data from bearings in propulsion systems of ships |
DE102011103848A1 (en) * | 2011-05-27 | 2012-11-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | sensor device |
DE102012210477A1 (en) | 2012-06-21 | 2013-12-24 | Schaeffler Technologies AG & Co. KG | Hook block for hoist for lifting and measurement of loads, has shaft disk or housing disk provided with transducers detecting axial spacing between disks of thrust bearing or another spacing between disks of thrust bearing and disk |
CN104792531A (en) * | 2015-04-16 | 2015-07-22 | 西南石油大学 | Multistage thrust ball bearing-pack uniform loading performance test rack |
DE102014219727A1 (en) * | 2014-09-29 | 2016-03-31 | Aktiebolaget Skf | Load structure for testing a load capacity of a large-scale warehouse and method for a load structure |
DE102015218993B3 (en) * | 2015-10-01 | 2016-12-22 | Schaeffler Technologies AG & Co. KG | Bearing arrangement with a strain sensor device |
CN106441675A (en) * | 2016-11-08 | 2017-02-22 | 烟台职业学院 | Non-load-sharing piezoelectric thrust test device |
Citations (6)
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---|---|---|---|---|
EP0279361A1 (en) * | 1987-02-16 | 1988-08-24 | Peter Seitz | Device for measuring the pressure distribution in an area |
WO1990013011A1 (en) * | 1989-04-14 | 1990-11-01 | Robert Bosch Gmbh | Process for producing a sensor for the measurement of compressive forces |
DD297873A5 (en) * | 1988-10-12 | 1992-01-23 | ��������@�K@�K@�Kk�� | CONVERSION DEVICE FOR DETECTING DYNAMIC FORCES, MEASURING AND / OR CONTROL DEVICE AND METHOD THAT CONTAIN SUCH A CONVERSION |
DE4218949A1 (en) * | 1992-06-10 | 1993-12-16 | Schaeffler Waelzlager Kg | Radial or axial bearing with force measurement - connects bearing ring directly, or roller bearing indirectly via intermediate member, with force measuring film sensor. |
DE3908175C2 (en) * | 1988-03-14 | 1994-04-14 | Elco Co | Stress detector device |
WO2003019126A1 (en) * | 2001-08-23 | 2003-03-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Device for determining the forces and/or torques that act upon the wheel suspension of a vehicle |
-
2006
- 2006-05-10 DE DE102006021707A patent/DE102006021707A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279361A1 (en) * | 1987-02-16 | 1988-08-24 | Peter Seitz | Device for measuring the pressure distribution in an area |
DE3908175C2 (en) * | 1988-03-14 | 1994-04-14 | Elco Co | Stress detector device |
DD297873A5 (en) * | 1988-10-12 | 1992-01-23 | ��������@�K@�K@�Kk�� | CONVERSION DEVICE FOR DETECTING DYNAMIC FORCES, MEASURING AND / OR CONTROL DEVICE AND METHOD THAT CONTAIN SUCH A CONVERSION |
WO1990013011A1 (en) * | 1989-04-14 | 1990-11-01 | Robert Bosch Gmbh | Process for producing a sensor for the measurement of compressive forces |
DE4218949A1 (en) * | 1992-06-10 | 1993-12-16 | Schaeffler Waelzlager Kg | Radial or axial bearing with force measurement - connects bearing ring directly, or roller bearing indirectly via intermediate member, with force measuring film sensor. |
WO2003019126A1 (en) * | 2001-08-23 | 2003-03-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Device for determining the forces and/or torques that act upon the wheel suspension of a vehicle |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008006934A1 (en) * | 2008-01-28 | 2009-07-30 | Aker Mtw Werft Gmbh | Device and method for evaluating data from bearings in propulsion systems of ships |
DE102011103848A1 (en) * | 2011-05-27 | 2012-11-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | sensor device |
DE102012210477A1 (en) | 2012-06-21 | 2013-12-24 | Schaeffler Technologies AG & Co. KG | Hook block for hoist for lifting and measurement of loads, has shaft disk or housing disk provided with transducers detecting axial spacing between disks of thrust bearing or another spacing between disks of thrust bearing and disk |
US9778139B2 (en) | 2014-09-29 | 2017-10-03 | Aktiebolaget Skf | Load structure for testing a loadability of a large bearing and load testing method |
DE102014219727A1 (en) * | 2014-09-29 | 2016-03-31 | Aktiebolaget Skf | Load structure for testing a load capacity of a large-scale warehouse and method for a load structure |
CN105527101A (en) * | 2014-09-29 | 2016-04-27 | 斯凯孚公司 | Load structure for testing a loadability of a large bearing and load testing method |
DE102014219727B4 (en) | 2014-09-29 | 2022-03-24 | Aktiebolaget Skf | Loading structure for testing a load capacity of a large bearing and method for a loading structure |
CN105527101B (en) * | 2014-09-29 | 2020-07-10 | 斯凯孚公司 | Load structure for testing bearing capacity of large bearing and method for load structure |
CN104792531A (en) * | 2015-04-16 | 2015-07-22 | 西南石油大学 | Multistage thrust ball bearing-pack uniform loading performance test rack |
WO2017054813A1 (en) | 2015-10-01 | 2017-04-06 | Schaeffler Technologies AG & Co. KG | Rolling bearing arrangement having a strain sensor device |
CN108138841A (en) * | 2015-10-01 | 2018-06-08 | 舍弗勒技术股份两合公司 | Rolling bearing system with strain transducer device |
US10151342B2 (en) | 2015-10-01 | 2018-12-11 | Schaeffler Technologies AG & Co. KG | Rolling bearing arrangement having a strain sensor device |
CN108138841B (en) * | 2015-10-01 | 2020-01-21 | 舍弗勒技术股份两合公司 | Rolling bearing device with strain sensor device |
DE102015218993B3 (en) * | 2015-10-01 | 2016-12-22 | Schaeffler Technologies AG & Co. KG | Bearing arrangement with a strain sensor device |
CN106441675A (en) * | 2016-11-08 | 2017-02-22 | 烟台职业学院 | Non-load-sharing piezoelectric thrust test device |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120822 |
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R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130511 |