WO2010121907A2 - Verfahren und einrichtung zur bestimmung der rad- und achsgeometrie von radsätzen - Google Patents
Verfahren und einrichtung zur bestimmung der rad- und achsgeometrie von radsätzen Download PDFInfo
- Publication number
- WO2010121907A2 WO2010121907A2 PCT/EP2010/054644 EP2010054644W WO2010121907A2 WO 2010121907 A2 WO2010121907 A2 WO 2010121907A2 EP 2010054644 W EP2010054644 W EP 2010054644W WO 2010121907 A2 WO2010121907 A2 WO 2010121907A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel
- wheelset
- measuring device
- sensors
- angle determination
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/12—Measuring or surveying wheel-rims
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/021—Measuring and recording of train speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/026—Relative localisation, e.g. using odometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/275—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
- G01B11/2755—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment using photoelectric detection means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
- G01B2210/28—Beam projector and related sensors, camera, inclinometer or other active sensing or projecting device
Definitions
- the invention relates to a method and a measuring device for determining the wheel and axle geometry of wheelsets.
- the wheels of rail vehicles are subject to significant wear during operation.
- the contact of the metallic rail with the equally metallic rail vehicle wheel on the one hand causes wear of the rail and the wheel. Especially during cornering, the wear is increased, as it inevitably in addition to the rolling load and a sliding load of
- Wheel surface occurs.
- the usual wheelsets in which both wheels are firmly mounted on an axle and therefore no speed differences between inside and outside wheels can occur, are subject to wear in particular.
- Losrad in which the two wheels of an axle are each rotatably mounted on an axle, this problem can be mitigated, but not prevented. Blocking (due to heavy use of brakes, for example) promotes localized wear at the point of contact with the rail and causes wheel eccentricity or breakage of pieces of the wheel surface.
- Wheel profile not recognized and measured and assigned to a position on the profile.
- Existing (mobile) measuring devices for determining the wheel geometry of rail vehicle wheels when installed can not perform the same measurements as stationary measuring machines.
- the invention is therefore based on the object to provide a measuring device for determining the wheel and axle geometry of wheelsets, for their use, the wheelsets can remain on the rail vehicle and which determines the same parameters as a measuring machine according to the prior art.
- the object is achieved by a method according to claim 1.
- Advantageous embodiments are the subject of the subordinate claims.
- a measuring device is formed from two 3D optical sensors and a spacing element mechanically connecting these two sensors.
- the spacer ensures that the two 3D sensors are at a distance from one another, which essentially corresponds to the track width of the wheelset to be measured.
- the measuring device according to the invention comprises an angle determination device. By means of this angle determination device, each measured point of the wheel surface can be assigned to a specific angle of the wheel.
- the advantage can be achieved to make a Radprofil spot and a Rohnrundheitspond on both wheels of a wheelset at the same time, without having to be removed from the vehicle wheelset.
- Laser light section sensors can typically achieve a height resolution of the wheel profile of 1 / 100mm as well as a spatial resolution (in the axial direction) of 1/1 Omm.
- the angle determination device continuously determines the current angular position of the wheelset, so that an unambiguous assignment of each individual measured point of the wheel profiles can be assigned to a specific angle of the wheelset. Any method for measuring the angle of rotation can be used as the angle determination device, wherein it is advantageous to select a method which can be used in the rough ambient conditions typical for the maintenance of rail vehicles. Typical proven resolutions of the
- Angle measurement is about 4000 to 8000 parts per revolution.
- the mechanical decrease of the angle of rotation is to be regarded by a (for example by means of a spring) pressed against the rail vehicle wheel Tastrad.
- This jockey wheel comprises in its hub an angle encoder which detects the angle of rotation.
- angle determination device provides for the use of an integrated rotation angle sensor or contactless
- This sensor is temporarily (for example by magnetic force) attached to the wheel disc of the rail vehicle wheel to be measured and continuously determines the direction of gravity, so from the relative direction of gravity in relation to the housing of the rotation angle sensor, the current angular position of the wheelset can be determined.
- the angle determination device can further by means of so-called non-contact path measurement on the circumference of the wheelset to be measured.
- a measuring device further comprises an evaluation device, typically designed as a programmable computer, which receives the signals (measured values) of both 3D sensors and the angle determination device and creates from these data a mathematical model of the wheelset.
- This model advantageously comprises the wheel profiles of both wheels at each detected angle and the geometrical data of the wheels relative to each other.
- the output of this model data is preferably in a form that supports the further electronic processing and storage. For example, it is advantageous to create and output the geometric model of the wheelset as a so-called "Matlab" file.
- the invention provides a
- Referencing devices are designed in such a way that a part of each reference device protrudes into the measuring field of the respectively associated 3D sensor and is detected and measured by this 3D sensor.
- the application of the measuring device according to the invention is typically carried out in the following steps:
- the measuring device By means of the measuring device according to the invention, it is possible to detect a wheelset of a rail vehicle in its entire geometry, to which no removal of the wheelset is required.
- accuracies are far enough for the assessment of the wear of a rail vehicle wheel. It is particularly advantageous that the accuracy of the position of the measuring device in relation to the position of the wheelset no high requirements must be met. Due to the positioning of the measuring device below the wheel, slight deviations from the parallel position of the measuring device to the axis of the wheelset only slightly affect. A manual positioning of the measuring device (without further devices for exact positioning) is sufficient in any case.
- Fig.l shows an example and schematically a measuring device 1 and a wheelset 2. It is a set of wheels 2 shown, which includes a left wheel 22, a right wheel 23 and one, the two wheels rigidly connecting axis 21. The wheelset 2 is rotatably mounted in a left bearing 24 and a right bearing 25. Other parts of the rail vehicle are not shown for simplicity.
- a measuring device 1 comprises a left-hand 3D sensor 12, a right-hand 3D sensor 13 and a spacing element mechanically connecting these 3D sensors 12, 13.
- the measuring device 1 is arranged below the axis 21, so that the profile of the left wheel 22 in the measuring field 14 of the left 3D sensor 12 and the profile of the right wheel
- a left homing device 16 is releasably attached, which projects into the measuring field 14 of the left 3D sensor 12.
- a right reference unit 17 is detachably mounted, which projects into the measuring field 15 of the right 3D sensor 13.
- FIG. 2 shows by way of example and schematically a side view of a measuring device 1 and a wheel set 2. It is the arrangement of Fig.l in the direction of the axis 21 and an angle determination device shown.
- a jockey wheel 18 is provided which is secured by means of a spacer 11 Lever spring assembly is pressed against the circumference of the left wheel 22 and is driven by this left wheel 22.
- An angle encoder installed in the hub of the feeler wheel 18 determines the angle of rotation of the feeler wheel 18. By means of this rotation angle of the feeler wheel 18 and the ratio of the diameters of the left wheel 22 and the feeler wheel 18, a determination of the rotation angle of the wheelset 2 is made.
- FIG. 3 shows by way of example and schematically a block diagram of the electronic circuits of a measuring device.
- An evaluation device 3 is shown, to which evaluation device 3 the left-hand 3D sensor 12, the right-hand 3D sensor 13 and the angle determination device (feeler wheel) 18 are electrically connected.
- the evaluation device 3 receives the geometric data of the wheel set 2 detected by the 3D sensors 12, 13 and the angle information associated with each measuring point from the angle determination device (feeler wheel) 18 and uses this data to create a mathematical model 4 of the entire
- This model 4 is stored in the evaluation device 3 and can be output to a further (not shown) data processing device.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112010001785.9T DE112010001785B4 (de) | 2009-04-23 | 2010-04-08 | Verfahren und Einrichtung zur Bestimmung der Rad- und Achsgeometrie von Radsätzen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT6282009A AT508188B1 (de) | 2009-04-23 | 2009-04-23 | Verfahren und einrichtung zur bestimmung der rad- und achsgeometrie von radsätzen |
| ATA628/2009 | 2009-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010121907A2 true WO2010121907A2 (de) | 2010-10-28 |
| WO2010121907A3 WO2010121907A3 (de) | 2011-03-10 |
Family
ID=42782181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/054644 Ceased WO2010121907A2 (de) | 2009-04-23 | 2010-04-08 | Verfahren und einrichtung zur bestimmung der rad- und achsgeometrie von radsätzen |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT508188B1 (de) |
| DE (1) | DE112010001785B4 (de) |
| WO (1) | WO2010121907A2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3073051A1 (fr) * | 2017-10-27 | 2019-05-03 | Sequanta | Dispositif de controle a distance du deplacement d'un ecrou visse sur une tige filetee |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014006192A1 (de) * | 2014-04-30 | 2015-11-05 | Industrie-Partner Gmbh Radebeul-Coswig | ,,Radsatzfreihebe-. -dreh- und -meßvorrichtung für Radsätze von Schienenfahrzeugen" |
| DE102022204758A1 (de) | 2022-05-16 | 2023-11-16 | Siemens Mobility GmbH | Anordnung zur Sicherstellung eines Abstands eines Sensors |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1377799A (fr) * | 1962-12-19 | 1964-11-06 | Maschf Deutschland Ag | Procédé et dispositif de mesure des trains de roues des véhicules sur rails |
| DK158079C (da) * | 1986-10-13 | 1990-09-24 | Caltronic As | Anlaeg til sporbaseret aftastning af hjulprofilen paa forbikoerende jernbanehjul |
| DE4403951C2 (de) * | 1994-02-08 | 1999-03-25 | Niles Simmons Industrieanlagen | Meßverfahren und Meßeinrichtung für Radsätze von Schienenfahrzeugen |
| DE10313191A1 (de) * | 2003-03-25 | 2004-10-07 | Gutehoffnungshütte Radsatz Gmbh | Verfahren zur berührungslosen dynamischen Erfassung des Profils eines Festkörpers |
| DE10352166B3 (de) * | 2003-11-05 | 2005-04-21 | Db Cargo Ag | Vorrichtung und Verfahren zur Ermittlung der Oberflächenbeschaffenheit von drehsystemmetrischen Körpern |
-
2009
- 2009-04-23 AT AT6282009A patent/AT508188B1/de not_active IP Right Cessation
-
2010
- 2010-04-08 DE DE112010001785.9T patent/DE112010001785B4/de not_active Expired - Fee Related
- 2010-04-08 WO PCT/EP2010/054644 patent/WO2010121907A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3073051A1 (fr) * | 2017-10-27 | 2019-05-03 | Sequanta | Dispositif de controle a distance du deplacement d'un ecrou visse sur une tige filetee |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112010001785A5 (de) | 2012-07-05 |
| DE112010001785B4 (de) | 2015-04-02 |
| AT508188B1 (de) | 2011-05-15 |
| WO2010121907A3 (de) | 2011-03-10 |
| AT508188A1 (de) | 2010-11-15 |
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