EP2152559A1 - Aufhängung für ein schienenfahrzeug - Google Patents

Aufhängung für ein schienenfahrzeug

Info

Publication number
EP2152559A1
EP2152559A1 EP08762337A EP08762337A EP2152559A1 EP 2152559 A1 EP2152559 A1 EP 2152559A1 EP 08762337 A EP08762337 A EP 08762337A EP 08762337 A EP08762337 A EP 08762337A EP 2152559 A1 EP2152559 A1 EP 2152559A1
Authority
EP
European Patent Office
Prior art keywords
suspension
wedge
face
load
vertical
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.)
Granted
Application number
EP08762337A
Other languages
English (en)
French (fr)
Other versions
EP2152559B1 (de
Inventor
Alan John Aitken
David Taylor
Wayne Jamieson
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.)
SCT Europe Ltd
Original Assignee
SCT Europe Ltd
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 SCT Europe Ltd filed Critical SCT Europe Ltd
Publication of EP2152559A1 publication Critical patent/EP2152559A1/de
Application granted granted Critical
Publication of EP2152559B1 publication Critical patent/EP2152559B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/308—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating damping devices

Definitions

  • This invention relates to a suspension for a rail vehicle.
  • suspensions for rail vehicles for the main body of the vehicle to be suspended on a multi-axle bogie or a single axle bogie using suspensions which include a top pedestal supported by suspension springs which are in turn supported by an axle box attached to a wheel set by a bearing.
  • these include multiple long travel springs and have so called floating wedge friction damping.
  • the friction damping is brought about by a fixed plate transmitting load to an inclined face of the wedge such that the vertical face of the wedge, having a composite liner, is forced against a respective vertical face of the axle box or saddle, on either side of the wheel/bearing centre line. This action results in a horizontal damping force acting towards the centre line, which produces resistive forces against lateral and vertical acceleration of the wheel set in the Y and Z planes respectively due to the frictional engagement of the vertical faces.
  • the present invention consists in a suspension for a rail vehicle including at least one spring carrying a wedge constrained to move in the vertical direction and a load application member for engaging the wedge to transmit load to the wedge along a direction characterised in that the damping ratio of the suspension is variable by altering the engagement between the member and the wedge and hence the direction.
  • one of the member or wedge may have a generally flat engagement face and the other may have a non-planar face whereby the flat face can pivot on the non-planar face to alter the direction.
  • the member is pivotally mounted and further includes a resilient element for urging the member against the wedge.
  • the resilient element is rated to be fully compressed at the design maximum load of the vehicle.
  • the resilient member is sufficiently strong to maintain the plate in a first pivoted position, when the vehicle is unladen or at tare weight, and to be fully compressed when the vehicle is in at least a substantially loaded state.
  • the suspension can provide a first damping ratio which is suitable for tare running and a second damping ratio which is suitable for laden running, but more sophisticated arrangements can be envisaged, for example the resilient element could be replaced by an hydraulic ram, which altered the angle of the plate either under manual control or automatically in response to a detected load in the vehicle.
  • the direction is substantially 30° " to horizontal and in another state the direction is substantially at 40° to the horizontal.
  • Figure 1 a is a vertical view of a bogie set for tare running; and Figure 1 b is the equivalent view of the left hand side of the bogie of
  • a bogie 10 includes a top pedestal 11 , that supports the body, for example, of a railway wagon (not shown), an axle box 12 which is attached to a wheel set 13 by a bearing 14, and a suspension system, generally indicated at 15 acting between the pedestal 11 and the axle box 12.
  • the suspension 15 includes two upper load bearing springs 16 mounted on respective sides of a centre line 17 and a pair of damping spring sets 18, which are also mounted on respective sides of the centre line 17.
  • Each spring sets 18 includes coaxial springs 19 which together support a wedge element 20 that is constrained to travel vertically by the engagement of its face 21 with the vertical face 22 on the axle box 12. Up to this point the design is entirely conventional.
  • a pivoted plate 24 is provided instead of the pedestal 11 having a fixed inclined face for engaging the upper surface 23 of the wedge element 20.
  • the plate 24 can pivot towards and away from the pedestal 11.
  • the face 23 is domed, rather than flat as in the conventional design, so that as the plate 24 pivots, it can be readily aligned on the surface 23 to vary the line of action of the force transmitted through the plate 24 into the wedge element 20. It will be understood that by changing the angle of that line of action, the magnitude of the horizontal component of that force is also changed with the result that the friction or damping force generated between the faces 21 and 22 is altered. As this force is one of the components of the damping ratio, the net result is to change the damping ratio.
  • a further spring 25 is provided to act between the pedestal 11 and the plate 24 in a sense to urge the plate away from the pedestal 11 and against the wedge 20.
  • a suitable spring 25 it is possible to arrange for it to be in its extended position as show in Figure 1A when the respective vehicle is in its tare condition, but the spring 25 is fully compressed (see Figure 1 b) in the laden condition of the vehicle.
  • this changes the angle of the face of the plate 24 from 40° in the tare condition to 30° in the laden position.
  • the line of action or direction of transmitted load is therefore varied between 10° to the horizontal and 60° to the horizontal, with the resultant change on the resolved components of the applied load, as mentioned above.
  • This construction provides a particularly suitable arrangement for freight vehicles in that it acts essentially in a flip flop manner with the plate either being in its Figure 1a or Figure 1b condition.
  • the spring may be chosen for progressive compression, or a combination of springs may be used or, as is mentioned above, some positive actuator, such as a hydraulic ram could be used, but obviously that would be a more expensive approach.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
EP08762337.7A 2007-06-13 2008-06-12 Aufhängung für ein schienenfahrzeug Active EP2152559B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US93434407P 2007-06-13 2007-06-13
GBGB0711383.0A GB0711383D0 (en) 2007-06-13 2007-06-13 Suspension for a rail vehicle
PCT/GB2008/002002 WO2008152383A1 (en) 2007-06-13 2008-06-12 Suspension for a rail vehicle

Publications (2)

Publication Number Publication Date
EP2152559A1 true EP2152559A1 (de) 2010-02-17
EP2152559B1 EP2152559B1 (de) 2013-05-15

Family

ID=38332005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08762337.7A Active EP2152559B1 (de) 2007-06-13 2008-06-12 Aufhängung für ein schienenfahrzeug

Country Status (6)

Country Link
US (1) US20100162919A1 (de)
EP (1) EP2152559B1 (de)
AU (1) AU2008263623A1 (de)
CA (1) CA2689697A1 (de)
GB (1) GB0711383D0 (de)
WO (1) WO2008152383A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101844567B (zh) * 2010-04-27 2011-11-09 南车长江车辆有限公司 大抗菱刚度铁道货车转向架
CN101830233B (zh) * 2010-05-14 2011-11-09 南车长江车辆有限公司 全旁承承载式铁道货车转向架
CN102476642A (zh) * 2010-11-22 2012-05-30 齐齐哈尔轨道交通装备有限责任公司 一种铁路车辆转向架和铁路车辆
US9114814B2 (en) * 2012-10-17 2015-08-25 Nevis Industries Llc Split wedge and method for making same
RU2551870C1 (ru) * 2014-03-18 2015-05-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Елецкий государственный университет им. И.А. Бунина" Тепловозная тележка челюстная
WO2015159085A1 (en) * 2014-04-16 2015-10-22 Wabtec Rail Scotland Limited Suspension module for a rail vehicle
AT516584A1 (de) * 2014-11-27 2016-06-15 Siemens Ag Oesterreich Federtopf für eine Primärfederung eines Schienenfahrzeugs
EP3045373B1 (de) * 2015-01-19 2020-03-04 VR-Yhtymä Oy Reibungsdämpfer, der durch ein gelenk unterstützt wird
EP3045374B1 (de) * 2015-01-19 2020-02-26 VR-Yhtymä Oy Wägeanordnung
GB2556252B (en) * 2015-06-15 2020-10-14 Volvo Constr Equip Ab Suspension arrangement
CN112918502A (zh) * 2021-03-29 2021-06-08 中车齐齐哈尔车辆有限公司 轴箱悬挂装置、转向架及铁路货车
CN112849190B (zh) * 2021-03-29 2024-10-11 中车齐齐哈尔车辆有限公司 一种轴箱悬挂装置及转向架

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US2352693A (en) * 1941-06-07 1944-07-04 Arthur C Davidson Railway truck
US2422638A (en) * 1944-09-18 1947-06-17 James R Cardwell Stabilizing mechanism for railway trucks and the like
US2723630A (en) * 1950-02-08 1955-11-15 Buckeye Steel Castings Co Damping device for railway car trucks
US3079873A (en) * 1960-02-29 1963-03-05 Amsted Ind Inc Universal side frame for snubbed railway car trucks
US3261305A (en) * 1961-11-02 1966-07-19 Midland Ross Corp Snubbed railway car truck
US3218990A (en) * 1962-11-13 1965-11-23 Midland Ross Corp Car truck side frame with snubbing means
US3254613A (en) * 1963-03-05 1966-06-07 Midland Ross Corp Car truck
US3575117A (en) * 1968-06-12 1971-04-13 Amsted Ind Inc Railway truck bolster snubber
BE754299A (fr) * 1969-08-04 1971-01-18 Midland Ross Corp Boggie de wagon de chemin de fer
US3977332A (en) * 1975-06-25 1976-08-31 Standard Car Truck Company Variably damped truck
US4357880A (en) * 1980-08-25 1982-11-09 Midland-Ross Corporation Bolster for a railroad car truck
US4574708A (en) * 1984-01-03 1986-03-11 Buckeye International, Inc. Damping mechanism for a truck assembly
DE4204783C2 (de) * 1992-02-18 2001-03-01 Dwa Deutsche Waggonbau Gmbh Laufwerk für Schienenfahrzeuge
US5511489A (en) * 1994-05-17 1996-04-30 Standard Car Truck Company Dual face friction wedge
US5524551A (en) * 1994-08-23 1996-06-11 Amsted Industries Incorporated Spring-pack assembly for a railway truck bolster assembly
US6269752B1 (en) * 1999-05-06 2001-08-07 Standard Car Truck Company Friction wedge design optimized for high warp friction moment and low damping force
US20020092440A1 (en) * 2000-09-11 2002-07-18 Paul Hewitt Railcar Truck
US6425334B1 (en) * 2000-12-20 2002-07-30 Amsted Industries Incorporated Friction shoe for freight car truck
US7004079B2 (en) * 2001-08-01 2006-02-28 National Steel Car Limited Rail road car and truck therefor
US6895866B2 (en) * 2001-08-01 2005-05-24 National Steel Car Limited Rail road freight car with damped suspension
CA2469116C (en) * 2003-06-25 2009-08-18 Asf-Keystone, Inc. Three-piece motion control truck system
GB0500236D0 (en) * 2005-01-07 2005-02-16 Wagon Rail Interface Technolog Railway bogies
US8104409B2 (en) * 2008-08-19 2012-01-31 Bradken Resources Pty Limited Rail car suspension damping

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Title
See references of WO2008152383A1 *

Also Published As

Publication number Publication date
AU2008263623A8 (en) 2010-02-18
EP2152559B1 (de) 2013-05-15
WO2008152383A1 (en) 2008-12-18
AU2008263623A1 (en) 2008-12-18
GB0711383D0 (en) 2007-07-25
CA2689697A1 (en) 2008-12-18
WO2008152383A8 (en) 2010-01-14
US20100162919A1 (en) 2010-07-01

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