EP1938075A1 - Procede et dispositif d'essai de roues et essieux de vehicules sur rails - Google Patents

Procede et dispositif d'essai de roues et essieux de vehicules sur rails

Info

Publication number
EP1938075A1
EP1938075A1 EP06805873A EP06805873A EP1938075A1 EP 1938075 A1 EP1938075 A1 EP 1938075A1 EP 06805873 A EP06805873 A EP 06805873A EP 06805873 A EP06805873 A EP 06805873A EP 1938075 A1 EP1938075 A1 EP 1938075A1
Authority
EP
European Patent Office
Prior art keywords
rail vehicle
radial
rail
axial
drum
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Withdrawn
Application number
EP06805873A
Other languages
German (de)
English (en)
Inventor
Martin Grosse-Hovest
Gerhard Fischer
Vatroslav Grubisic
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP1938075A1 publication Critical patent/EP1938075A1/fr
Withdrawn legal-status Critical Current

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
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G01M17/10—Suspensions, axles or wheels

Definitions

  • the invention relates to a method for testing rail vehicle wheels, in which an entire rail vehicle wheel set comprising at least one rail vehicle axle and rail vehicle wheels mounted at least at its ends is tested by introducing radial and / or axial forces into the wheel contact point.
  • the invention relates to a device for testing rail vehicle wheels and axles, in which an entire rail vehicle wheel set comprising at least one rail vehicle axle and at least at their ends mounted rail vehicle wheels through Initiating radial and / or axial forces in the wheel contact point is checked, which has a holding device for rotatably mounting the rail vehicle wheel set and a radial loading device and Axialbelastungs recommended.
  • EP 0 063 245 B1 discloses a device for testing vehicle wheels, wheel hubs, wheel bearings and wheel bolts under operating load conditions, wherein the wheel forces are likewise applied via a revolving drum and via thrust rings mounted therein. To initiate the existing during cornering axial and radial forces on the Radaufstandsyak an inclination of the vehicle wheel is effected.
  • This device is designed for the testing of road vehicle wheels, so vehicle wheels with pneumatic tires that are elastically deformable.
  • such a device is neither suitable for rail vehicles, nor is it possible with this device to test entire wheelsets. Rather, only a single wheel or pair of wheels can be tested using a semi-experimental test by this device.
  • EP 0 232 855 B1 discloses a method and a device for testing rail vehicle wheels and axles, which comprises a rail vehicle axle and rail vehicle wheels mounted at the ends thereof.
  • the rail vehicle wheels and axles are tested under operating load conditions.
  • a drum rotates about a rail vehicle wheel and stands with this in the rolling engagement, wherein the axial forces are selectively introduced via the Radachsen Scheme of the one or two rail vehicles or both rail vehicle wheels.
  • This device for carrying out the method enables the simulation of occurring during operation geometric relationships between the rail vehicle wheels and the rail at right angles to the rail plane wheels.
  • the invention is therefore an object of the invention to provide a method and a device for testing rail vehicle wheels and axles, by the simulation of the actual operating loads occurring under reduced wear a proof of strength of the rail vehicle wheel set is possible.
  • the inventive method for testing rail vehicle wheels and axles enables the simulation of operating loads in a realistic manner.
  • the variable change of a camber angle of the rail vehicle wheelset, which is superimposed on the force acting on the rail vehicle and axial and / or radial force, the actual loads occurring, in particular computer-controlled, can be simulated.
  • both the wear and the fatigue strength can be determined and optimized with such a method.
  • a two-point contact with bow trips can be adjusted by changing the camber angle either a large contact area to minimize wear.
  • the camber angle is adjusted changed in an adjustment between +/- 10 °.
  • Such an area is suitable for rail vehicle wheels for adjustment in order to allow an increase of the applied contact surface with the rails, which have a slightly curved running surface.
  • the camber angle can preferably be changed into both the positive and the negative range.
  • the camber angle is introduced at one end of the wheel axle of the rail vehicle wheel set, which lies opposite the rail vehicle wheel in rolling contact with the rail track.
  • a test program is created via a load matrix, through which the individual load types are checked during the examination of similar load conditions.
  • the components contained in the load matrix such as vertical force or radial force Q, axial force or lateral force Y and camber angle Y can be limited to the maximum permissible values and simulate different load combinations within a test program.
  • a further advantageous embodiment of the method provides that a test cycle is passed, which is derived by calculation from an actual load case.
  • a test cycle is passed, which is derived by calculation from an actual load case.
  • the number of switches, the required braking and the angular straight line of the curves is known. This results in the loading matrix, the individual load cases and load directions, so that in a test cycle in a time-saving or reliable way the proof of durability can be performed.
  • the number of bow trips, straight rides and points crossings and stunts are repeated several times in succession, so that after a small number of bow trips wear can be extrapolated over the total number of turns. This applies analogously to straight-ahead driving, turnouts and braking.
  • the inventive device for testing rail vehicle wheels and axles which is provided in particular for carrying out the method according to the invention, has the advantage that a complete rail vehicle wheel set, in particular an original rail vehicle set, is used in the test. At the same time an increased simulation quality is achieved by the superimposed setting of the camber angle. Furthermore, the flexibility in adaptation to targeted testing loads is increased and allows similar loading conditions. This device also allows the simulation of very high speeds.
  • the device preferably has a lifting cylinder, which is provided for actuating the adjusting device for adjusting the camber angle.
  • the lifting cylinder is hydraulically driven.
  • a pneumatic or electromagnetic control can be provided.
  • This further holding device is preferably slidably provided for receiving various sizes of Schieneneducationrad accountsn and for easy loading and unloading.
  • the axial force means is provided for the introduction of force.
  • a first and a second cylinder of the axial force device are driven synchronously.
  • the axial forces can be introduced separately into the first and second holding device and additional loads on the wheel axle can be minimized.
  • the adjusting device and the axial force device with a second cylinder are preferably connected to the further holding device for introducing force and movement.
  • a targeted superposition of the camber angle and the axial force can be achieved on the wheel axle.
  • the holding device comprises a support arm, on which the axial force device and the radial force device each act via a hinge connection.
  • the retainer remotely engages the force application points on the hub region within the drum and preferably has an L-shaped configuration, so that both the radial force as a vertical force and the axial force as a horizontal force for the introduction of force are transferable. This results in simple and constructive conditions that allow clear power flows. Due to the articulated arrangement of the radial and axial force on the support arm, a superposition of the two forces can be carried out in a simple manner.
  • the drum is cantilevered and formed open on one side.
  • large drum diameter can be made possible, whereby the simulation quality and inspection possibility is increased.
  • higher test speeds can be achieved. This is additionally increased by the rotation about a fixed and supported axis.
  • FIG. 1 shows a schematic side view of the device according to the invention for testing rail vehicle wheels and axles
  • Figure 2a to c are schematic sectional views of different load cases during the simulation operation-like loading conditions and
  • Figure 3 is a graph of the loading forces Q and Y and the camber angle Y as a function of time.
  • FIG. 1 shows a device 11 according to the invention for testing rail vehicle wheels and axles 16 under operationally similar loading conditions. conditions.
  • a rail vehicle wheel set 12 has a rail vehicle axle 14 or wheel axle 14, at each of whose two ends the rail vehicle wheel 16 is arranged.
  • a holding device 18 For rotatably receiving the rail vehicle wheel set 12, a holding device 18 is provided, which acts on a wheel axle region of the rail vehicle wheel set 12, which is provided in a drum 21 or associated with this drum 21.
  • the drum 21 is open on one side and surrounds a rail vehicle wheel 16.
  • the drum 21 receives a rail or a rail ring 22, preferably interchangeable on.
  • the rail vehicle wheel 16 is positioned over its tire 24 in rolling engagement with the rail ring 22.
  • the drum 21 is driven by a drive unit 26 and rotatably supported by a bearing unit 27.
  • This holding device 29 is preferably displaceable in the wheel axle direction in order to allow adaptation to different track widths.
  • This holding device 29 preferably accommodates an adjusting device 31, which serves for the camber adjustment of the rail vehicle wheel set 12.
  • This adjusting device 31 is driven by a lifting cylinder, so that the setting of a positive, neutral and negative camber angle for the rail vehicle wheel 16 arranged in the drum 21 is made possible.
  • the holding device 18 has a support arm 34 extending out of the drum 21, on which a radial force device 36 and an axial force device 37 engage with a first cylinder.
  • the support arm 34 is pivotally received via a support 39, so that both the axial force 37 and the articulated and on the holding device 18, in particular on the support arm 34, engaging radial force 36 can transfer the loads on the Radachsen Scheme.
  • a first and second cylinder is provided which each transmit an axial force to the holding device 18 and further holding device 29. Alternatively, this may also be possible via a common cylinder or more than two cylinders.
  • the radial force is transmitted via the preferably L-shaped designed support arm 34 of the holding device 18 in an adjustable lever ratio to the wheel axle, wherein the support arm 34 is pivotally mounted about a hinge 41 on the support arm 34.
  • FIG. 2a is a schematically enlarged sectional view of a wheel tire 24 of the rail vehicle wheel 16 to the rail ring 22 is shown.
  • a bow travel with a positively set camber angle y is simulated.
  • the wheel contact point can be increased, that is, the applied contact surface is increased. As a result, wear can be minimized.
  • FIG. 2 b a straight-ahead travel or a sinusoidal run is simulated.
  • a negative camber is set, so that the wheel flange also bears against the rail ring and receives a portion of the axial forces that occur during a sinusoidal run.
  • FIG. 2c shows a straight-ahead drive at a point crossing.
  • FIG 3 is a diagram of the loading force Q as a radial force and the loading force Y as axial force and the setting of the Camber angle Y displayed over time.
  • the axial force and the radial force are increased during the course of the test.
  • the camber angle is adjusted positively in analogy to the curve in order to reduce the forces occurring and the resulting wear.
  • increased radial forces are given.
  • at joints in the connection area of adjoining rail sections or bridge crossings or the like increased radial forces can act.
  • the axial forces are caused by the back and forth of the wheel set by the track clearance. In order to simulate the illustrated load cases of the radial force and the axial force wear, these forces are counteracted by the setting of an example negative camber angle according to the course shown.
  • Section III a turnout is simulated.
  • a at a turnout representing radial force curve is opposite to the Axialkraftverlauf.
  • the camber adjustment is preferably carried out in analogy to the axial force curve to test both occurring load cases wear.
  • the camber setting can be changed in a variable program according to a stress matrix.
  • the load matrix is composed of the load multiple of the individual load cases and load directions of known measurements and is calculated by the multi-body simulation in the Vorbeumpssphase determined.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vehicle Body Suspensions (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

L'invention concerne un procédé et un dispositif (11) d'essai de roues et essieux (16) de véhicules sur rails. Pour réduire l'usure, on règle un angle de carrossage variable en fonction de la force axiale et/ou radiale.
EP06805873A 2005-10-10 2006-09-26 Procede et dispositif d'essai de roues et essieux de vehicules sur rails Withdrawn EP1938075A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510048746 DE102005048746B3 (de) 2005-10-10 2005-10-10 Verfahren und Einrichtung zur Prüfung von Schienenfahrzeugrädern und -achsen
PCT/EP2006/009348 WO2007042143A1 (fr) 2005-10-10 2006-09-26 Procede et dispositif d'essai de roues et essieux de vehicules sur rails

Publications (1)

Publication Number Publication Date
EP1938075A1 true EP1938075A1 (fr) 2008-07-02

Family

ID=37533246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06805873A Withdrawn EP1938075A1 (fr) 2005-10-10 2006-09-26 Procede et dispositif d'essai de roues et essieux de vehicules sur rails

Country Status (3)

Country Link
EP (1) EP1938075A1 (fr)
DE (1) DE102005048746B3 (fr)
WO (1) WO2007042143A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817120A (zh) * 2017-10-23 2018-03-20 中车株洲电力机车有限公司 一种模拟转向架冲击载荷的车体静强度试验装置

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Publication number Priority date Publication date Assignee Title
CN101865785B (zh) * 2010-06-08 2011-12-21 江苏中辆科技有限公司 轨道车辆车轮耐磨性能综合试验台
CN102607869A (zh) * 2012-03-26 2012-07-25 西南交通大学 一种高速轮轨模拟实验装置
DE102012108706B3 (de) * 2012-09-17 2014-02-20 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Prüfvorrichtung für ein Schienenfahrzeug
CN104806587B (zh) * 2015-02-15 2017-01-25 江苏师范大学 一种用于客车铰接系统的试验装置及其控制方法
CN109932164B (zh) * 2019-02-28 2020-10-20 南京航空航天大学 用于旋转轴系的轴向径向力加载装置
CN112284703B (zh) * 2020-10-19 2022-07-22 北京建筑大学 一种全尺寸轮对道岔接触实验台
CN113063612A (zh) * 2021-03-16 2021-07-02 成都运达科技股份有限公司 基于转速脉冲的走行部旋转部等角度同步采样方法及系统
CN116305701B (zh) * 2023-05-22 2023-08-18 山东大学 考虑线路最小弯曲度的城市配电网线路规划方法及系统

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DE2601259C3 (de) * 1976-01-15 1979-03-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen Einrichtung zur betriebsähnlichen Prüfung von Radsätzen
SU954843A1 (ru) * 1981-02-18 1982-08-30 Институт черной металлургии Стенд дл испытани железнодорожных колес
US4475383A (en) * 1981-04-11 1984-10-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for testing vehicular wheels
JPS6222045A (ja) * 1985-07-22 1987-01-30 Japanese National Railways<Jnr> 車両試験装置の軌条輪傾斜・旋回機構
DE3604186A1 (de) * 1986-02-10 1987-08-13 Fraunhofer Ges Forschung Verfahren und einrichtung zur pruefung von schienenfahrzeugraedern unter betriebsaehnlichen belastungsbedingungen
GB2266123A (en) * 1992-04-16 1993-10-20 Keith Ebbrell Dynamic monitoring apparatus for rail vehicle bearings
JP2001041616A (ja) * 1999-07-26 2001-02-16 Shigeyoshi Ina アンモニア冷凍装置のアンモニアガス漏洩時におけるアンモニアガス除害装置
JP4303865B2 (ja) * 2000-04-12 2009-07-29 住金関西工業株式会社 鉄道車両用ジャーナル軸受の非分解検修のための外輪回転装置
JP3950374B2 (ja) * 2002-06-25 2007-08-01 三菱重工業株式会社 移動式載荷試験車

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817120A (zh) * 2017-10-23 2018-03-20 中车株洲电力机车有限公司 一种模拟转向架冲击载荷的车体静强度试验装置

Also Published As

Publication number Publication date
WO2007042143A1 (fr) 2007-04-19
DE102005048746B3 (de) 2007-02-15

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