EP2954298A1 - Test bench for wheelset shafts - Google Patents

Test bench for wheelset shafts

Info

Publication number
EP2954298A1
EP2954298A1 EP14701771.9A EP14701771A EP2954298A1 EP 2954298 A1 EP2954298 A1 EP 2954298A1 EP 14701771 A EP14701771 A EP 14701771A EP 2954298 A1 EP2954298 A1 EP 2954298A1
Authority
EP
European Patent Office
Prior art keywords
wheelset
tested
test
test bench
wheelset shafts
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.)
Ceased
Application number
EP14701771.9A
Other languages
German (de)
French (fr)
Inventor
Christian Moser
Hauke MIORINI
Christian THÖNI
Franz-Josef Weber
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.)
Siemens Mobility Austria GmbH
Original Assignee
Siemens AG Oesterreich
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 Siemens AG Oesterreich filed Critical Siemens AG Oesterreich
Publication of EP2954298A1 publication Critical patent/EP2954298A1/en
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/08Railway vehicles
    • G01M17/10Suspensions, axles or wheels

Definitions

  • Wheelset wheelset To test the strength of wheelset axles in test benches, circulating bending loads are typically introduced into the shaft to be tested.
  • the wheelset shaft to be tested is fastened on one side to the foundation with the wheel disc.
  • the force is introduced by means of an unbalance exciter, which is mounted at the free end of the shaft.
  • the bending stress applied in the shaft corresponds to the actual stresses during operation only at one point of the shaft.
  • the bending stress decreases continuously from the clamping point to the free end with the unbalance exciter. Due to the design, the test frequencies are limited to approximately 20 Hz.
  • the invention has for its object to better adapt the test to the actual loads during operation of the wheelset. This is done according to the invention with a test stand with the following features:
  • the natural frequency and thus the test frequency increases, depending on Mass ratios to approximately 80 Hz. Due to the bending moment introduction via the two wheel disks, an almost constant circumferential bending moment arises between the two wheel disks, as is present during operation. In the area of the wheel discs, 2 vibration nodes are set during operation. In this node, the candidate can be hung.
  • test rigs for checking crankshafts use 4 ropes or rods.
  • brackets and the ropes themselves have a natural frequency below the desired test frequency.
  • test time and the test costs can be significantly reduced.
  • the necessary measuring technology can be easily mounted on the shaft. This standard measurement technology is used
  • FIG. 1 shows a test stand according to the invention with a wheelset shaft to be tested and 2 shows an exemplary sectional view of a test stand according to FIG. 1.
  • the test stand shown in the figures comprises two holding consoles 1 with rubber bearings 2 in which the wheelset shaft 3 to be tested with two wheel disks 4 is mounted.
  • the wheelset shaft 3 is in the expected range of the nodes on the consoles.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)

Abstract

The invention relates to a test bench for wheelset shafts, having the following features: the wheelset shafts to be tested have two mounted wheel disks; the bending torque is introduced via the two wheel disks; the wheelset shafts to be tested are mounted on the retaining consoles in the expected region of the vibration nodes by means of rubber bearings; and the main natural frequencies of the retaining consoles lie above the testing frequency. By using the test bench according to the invention, the testing time and testing costs can be significantly reduced. The necessary measuring equipment can be easily mounted on the shaft. Thus, standard measuring equipment can be used.

Description

Beschreibung / Description Description / Description
Prüfstand für Radsatzwellen Zur Festigkeitsprüfung von Radsatzwellen in Prüfständen werden typischerweise umlaufende Biegebeanspruchungen in die zu prüfende Welle eingebracht. Wheelset wheelset To test the strength of wheelset axles in test benches, circulating bending loads are typically introduced into the shaft to be tested.
Die zu prüfende Radsatzwelle, wird einseitig am Fundament mit der Radscheibe befestigt. Die Krafteinleitung erfolgt mithil- fe eines Unwuchterregers, welcher am freien Ende der Welle montiert ist. The wheelset shaft to be tested is fastened on one side to the foundation with the wheel disc. The force is introduced by means of an unbalance exciter, which is mounted at the free end of the shaft.
Die dabei aufgebrachte Biegebeanspruchung in der Welle ent- spricht nur an einer Stelle der Welle den tatsächlichen Beanspruchungen im Betrieb. Die Biegebeanspruchung nimmt von der Einspannstelle bis zum freien Ende mit dem Unwuchterreger kontinuierlich ab. Konstruktionsbedingt sind die Prüffrequen- zen mit etwa 20Hz begrenzt. The bending stress applied in the shaft corresponds to the actual stresses during operation only at one point of the shaft. The bending stress decreases continuously from the clamping point to the free end with the unbalance exciter. Due to the design, the test frequencies are limited to approximately 20 Hz.
Der Erfindung liegt die Aufgabe zugrunde, die Prüfung besser an die tatsächlichen Belastungen beim Betrieb der Radsatzwellen anzupassen. Dies geschieht erfindungsgemäß mit einem Prüfstand mit folgenden Merkmalen: The invention has for its object to better adapt the test to the actual loads during operation of the wheelset. This is done according to the invention with a test stand with the following features:
- die zu prüfenden Radsatzwellen weisen zwei montierte Radscheiben auf,  - the axles to be tested have two mounted wheel discs,
- die Biegemomenteinleitung erfolgt über die beiden Radschei- ben,  - the bending moment is introduced via the two wheel discs,
- die Lagerung der zu prüfenden Radsatzwelle an den Haltekonsolen erfolgt im erwarteten Bereich der Schwingungsknoten mittels Gummilagern,  the bearing of the wheelset shaft to be tested on the holding brackets takes place in the expected area of the vibration nodes by means of rubber bearings,
- Grundeigenfrequenzen der Haltekonsolen liegen über der Prüffrequenz .  - Grundigenfrequenzen the retaining brackets are above the test frequency.
Durch Prüfung der Wellen mit 2 montierten Radscheiben steigt die Eigenfrequenz und damit die Prüffrequenz , je nach Massenverhältnissen auf etwa 80 Hz. Durch die Biegemomentein- leitung über die beiden Radscheiben ergibt sich zwischen den beiden Radscheiben ein, wie im Betrieb vorhanden, nahezu konstantes, umlaufendes Biegemoment. Im Bereich der Radscheiben stellen sich bei Betrieb 2 Schwingungsknoten ein. In diesen Knoten kann der Prüfling aufgehängt werden. By testing the shafts with 2 mounted wheel discs, the natural frequency and thus the test frequency increases, depending on Mass ratios to approximately 80 Hz. Due to the bending moment introduction via the two wheel disks, an almost constant circumferential bending moment arises between the two wheel disks, as is present during operation. In the area of the wheel discs, 2 vibration nodes are set during operation. In this node, the candidate can be hung.
Bekannte Prüfstände zum Prüfen von Kurbelwellen verwenden dazu 4 Seile oder Stangen. Die dazu notwendigen Bauteile, die Konsolen und die Seile selbst haben aber eine Eigenfrequenz unterhalb der angestrebten Prüffrequenz . Known test rigs for checking crankshafts use 4 ropes or rods. However, the necessary components, the brackets and the ropes themselves have a natural frequency below the desired test frequency.
Bei Aufhängung der Radsatzwelle in 2 speziellen Gummilagern können sehr kompakte Haltekonsolen verwendet werden. When mounting the wheelset shaft in 2 special rubber bearings very compact retaining brackets can be used.
Die Grundeigenfrequenzen dieser Haltekonsolen sind dabei über der Prüffrequenz . Damit werden störende Einflüsse seitens des PrüfStandes auf den Prüfablauf vermieden. Durch die fundamentnahe Anordnung des Prüflings wird die Handhabe und der Einbau des Prüflings erheblich erleichtert. Die zur Überwa- chung des Prüfablauf notwendige Messtechnik wird ebenfalls wesentlich vereinfacht, (keine rotierenden Bauteile und nur geringe Vibrationsbewegungen . The Grundigenfrequenzen this holding brackets are above the test frequency. This avoids disruptive influences on the test procedure by the test bench. Due to the close-to-ground arrangement of the specimen, the handling and installation of the specimen is greatly facilitated. The measuring technique required to monitor the test procedure is also considerably simplified (no rotating components and only slight vibration movements).
Mit dem erfindungsgemäßen Prüfstand können Prüfzeit und die Prüfkosten erheblich reduziert werden. With the test stand according to the invention test time and the test costs can be significantly reduced.
Die notwendige Messtechnik kann auf der Welle einfach montiert werden. Damit kommt Standardmesstechnik zum Einsatz The necessary measuring technology can be easily mounted on the shaft. This standard measurement technology is used
Die Erfindung wird anhand eines in den Figuren dargestellten Ausführungsbeispieles näher erläutert. Es zeigen The invention will be explained in more detail with reference to an embodiment shown in FIGS. Show it
Fig. 1 einen erfindungsgemäßen Prüfstand mit einer zu prüfenden Radsatzwelle und Fig. 2 eine beispielhafte Schnittdarstellung zu einem Prüfstand gemäß Figur 1. 1 shows a test stand according to the invention with a wheelset shaft to be tested and 2 shows an exemplary sectional view of a test stand according to FIG. 1.
Der in den Figuren dargestellte Prüfstand umfasst zwei Halte- konsolen 1 mit Gummilager 2 in denen die zu prüfende Radsatzwelle 3 mit zwei Radscheiben 4 gelagert ist. The test stand shown in the figures comprises two holding consoles 1 with rubber bearings 2 in which the wheelset shaft 3 to be tested with two wheel disks 4 is mounted.
Die Biegemomenteinleitung erfolgt mittels Unwuchterreger 5 über die beiden Radscheiben 4. The bending moment introduction takes place by means of unbalance exciter 5 via the two wheel discs 4.
Dabei liegt die Radsatzwelle 3 im erwarteten Bereich der Schwingungsknoten auf den Konsolen auf. In this case, the wheelset shaft 3 is in the expected range of the nodes on the consoles.
Wesentlich ist auch eine Auslegung der Haltekonsolen in der Weise, dass ihre Grundeigenfrequenzen über der Prüffrequenz liegen und so Einflüsse auf das Meßergebnis vermieden werden. Also important is an interpretation of the holding brackets in such a way that their Grundigenfrequenzen are above the test frequency and thus influences on the measurement result can be avoided.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Haltekonsolen 1 Retaining brackets 1
Gummilager 2  Rubber bearing 2
Radsatzwelle 3  Wheelset 3
Radscheiben 4  Wheel disks 4
Unwuchterreger 5  Unbalance exciter 5

Claims

Patentansprüche / Patent Claims Claims / Patent Claims
1. Prüfstand für Radsatzwellen mit folgenden Merkmalen: 1st test stand for wheelset shafts with the following features:
- die zu prüfenden Radsatzwellen weisen zwei montierte Rad- Scheiben auf,  the axles to be tested have two mounted wheel discs,
- die Biegemomenteinleitung erfolgt über die beiden Radscheiben,  - The bending moment is introduced via the two wheel discs,
- die Lagerung der zu prüfenden Radsatzwelle an den Haltekonsolen erfolgt im erwarteten Bereich der Schwingungsknoten mittels Gummilagern,  the bearing of the wheelset shaft to be tested on the holding brackets takes place in the expected area of the vibration nodes by means of rubber bearings,
- die Grundeigenfrequenzen der Haltekonsolen liegen über der Prüffrequenz .  - The Grundigenfrequenzen the retaining brackets are above the test frequency.
EP14701771.9A 2013-02-06 2014-01-30 Test bench for wheelset shafts Ceased EP2954298A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50089/2013A AT513611B1 (en) 2013-02-06 2013-02-06 Test bench for wheelset shafts
PCT/EP2014/051763 WO2014122059A1 (en) 2013-02-06 2014-01-30 Test bench for wheelset shafts

Publications (1)

Publication Number Publication Date
EP2954298A1 true EP2954298A1 (en) 2015-12-16

Family

ID=50029049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14701771.9A Ceased EP2954298A1 (en) 2013-02-06 2014-01-30 Test bench for wheelset shafts

Country Status (3)

Country Link
EP (1) EP2954298A1 (en)
AT (1) AT513611B1 (en)
WO (1) WO2014122059A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3098476A1 (en) * 2015-05-27 2016-11-30 Prisma Engineering Maschinen- und Motorentechnik GmbH Elastic bearing
CN105954026B (en) * 2016-07-15 2018-10-02 芜湖赛宝信息产业技术研究院有限公司 Rubber support life test fixture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604186A1 (en) * 1986-02-10 1987-08-13 Fraunhofer Ges Forschung METHOD AND DEVICE FOR TESTING RAIL VEHICLE WHEELS UNDER OPERATING-LIKE LOAD CONDITIONS
DE102005044903B4 (en) * 2005-09-20 2007-07-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for load testing a wheelset shaft
DE102010060501A1 (en) * 2010-11-11 2012-05-16 Sven Henze Railway shaft testing stand has foundation, drive unit that is supported on foundation, where drive unit is stand in drive connection with test shaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BERTINIA L ET AL: "RESONANT BENCH FOR FATIGUE TESTING OF STEEL DRILL PIPE CONNECTIONS", vol. AIAS 2012 - 005, 5 September 2012 (2012-09-05), pages 1 - 13, XP002723010, Retrieved from the Internet <URL:http://www2.ing.unipi.it/~a011216/Pubblicazioni/Articoli/2012_1.pdf> [retrieved on 20140408] *

Also Published As

Publication number Publication date
WO2014122059A1 (en) 2014-08-14
AT513611A4 (en) 2014-06-15
AT513611B1 (en) 2014-06-15

Similar Documents

Publication Publication Date Title
DE102009047364A1 (en) System for testing the fatigue strength of a specimen
DE102012206377B4 (en) Device for measuring the bearing clearance of a rolling bearing
WO2018103981A1 (en) Drive train test stand having a modular design for electric motor vehicle drives
DE102012205153A1 (en) Test device and vibration mass arrangement for a rotor blade of a wind turbine
DE102015203332B3 (en) Method and apparatus for detecting noise vibration harshness emissions of a wheel brake
Zaman et al. The effects of bolted joints on dynamic response of structures
DE102009025481A1 (en) Method and device for the quantitative determination of the unbalance condition and method for determining the clamping state of workpieces
DE102010034239A1 (en) Device for testing fatigue strength of e.g. camshaft-flywheel of motor vehicle, has clamping segments circumferentially positioned around through-flow opening in housing and radially movable with respect to component
DE102005044903B4 (en) Device and method for load testing a wheelset shaft
AT513611B1 (en) Test bench for wheelset shafts
DE102014002260A1 (en) Bremsenprüfstand
DE102012023566A1 (en) Method for determining the remaining service life of a railway wheelset by means of test bench tests
EP1611423A1 (en) Unbalance measuring device and method for unbalance measurement
WO2018103980A1 (en) Electric motor for a drive unit of a drive train test bench
DE102007017614A1 (en) Method for the optimal operation of transmissions
EP2737289A1 (en) Method and arrangement for monitoring gearwheels during operation
DE102012204942A1 (en) Hook bottle for lifting and measuring loads, has loading hook rotatably supported in housing, transducer placed between one of two disks to detect axial spacing between disks and fed by energy store
DE202015003086U1 (en) Device for leak testing of gas pipe
EP2772742A1 (en) Power determination method and turbo engine
DE102009037457A1 (en) Device i.e. frequency generator, for testing stability of e.g. lamp- and/or light posts, has weight rotatably supported on shaft, balanced related to rotational axis of shaft and comprising bar standing transverse to rotational axis
WO2014079695A1 (en) Monitoring a component
EP2116833A1 (en) Load cell
DE102012000836A1 (en) Transmission test bench device for transmission, particularly of wind power plants, has housing, in which transmission elements are arranged, where housing has generator-sided flange for receiving flange-mounted generator
DE2146722C3 (en) Alternating bending test device
DE2730021A1 (en) Applied stress measuring appts. - has intermediate frame to prestress compressive force transducers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150605

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160819

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

APBK Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNE

APBN Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2E

APBR Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3E

APAF Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS MOBILITY GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS MOBILITY AUSTRIA GMBH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

APBT Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9E

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20200917