EP1479585A1 - Montage des boítes d'essieux dans un bogie - Google Patents

Montage des boítes d'essieux dans un bogie Download PDF

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Publication number
EP1479585A1
EP1479585A1 EP04252929A EP04252929A EP1479585A1 EP 1479585 A1 EP1479585 A1 EP 1479585A1 EP 04252929 A EP04252929 A EP 04252929A EP 04252929 A EP04252929 A EP 04252929A EP 1479585 A1 EP1479585 A1 EP 1479585A1
Authority
EP
European Patent Office
Prior art keywords
saddle
rocker
arrangement according
wheelset
relative
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Withdrawn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
EP04252929A
Other languages
German (de)
English (en)
Inventor
Paul c/o Powell Duffry Rail Limited Hewitt
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.)
English Welsh & Scottish Railway Holdings Limi
Original Assignee
Powell Duffryn Rail 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 Powell Duffryn Rail Ltd filed Critical Powell Duffryn Rail Ltd
Publication of EP1479585A1 publication Critical patent/EP1479585A1/fr
Withdrawn legal-status Critical Current

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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
    • B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs

Definitions

  • the present invention is directed to a railcar truck, for example a railcar truck having a side frame pedestal including a wear plate adapted to be engaged by a friction wedge and a saddle having a rocker member.
  • a railcar truck for example a railcar truck having a side frame pedestal including a wear plate adapted to be engaged by a friction wedge and a saddle having a rocker member.
  • the invention may be used with other types of truck.
  • One design of a railway truck includes a pair of spaced apart generally parallel side frames connected by a transverse bolster.
  • Each side frame includes a pedestal at each end thereof that is adapted to be connected by a saddle to a wheel set.
  • a plurality of springs extend between the saddle and the side frame such that the side frame is resiliently supported on the saddle. Friction wedges are disposed between the saddle and the side frame to dampen vertical, lateral and longitudinal movement of the side frame with respect to the saddle. Arrangements of this type are sometimes known as axle motion or unitruck arrangements.
  • the saddle is typically designed to define a cavity within which a rocker member is mounted, the rocker member being designed to co-operate with the bearing of the axle of the wheel set so as to allow a degree of articulation between the axle and the saddle.
  • the rocker member typically comprises a metallic, for example steel, component which is rigidly bolted or otherwise secured to the saddle to allow for replacement of the rocker member in the event that it becomes damaged or worn.
  • a truck arrangement comprising a wheelset carrying a saddle member, a resiliently deformable rocker member being interposed between the saddle member and the wheelset, the rocker member being resiliently deformable to damp lateral accelerations of the wheelset relative to the saddle member.
  • the resiliently deformable rocker member conveniently comprises a rubber-like material component secured to an adapter member which, in turn, co-operates with the wheelset or a bearing associated therewith to allow the adaptor member to move relative to the saddle.
  • the rocker member is conveniently releasably secured to the saddle member, for example using bolts, to allow replacement thereof.
  • Figure 1 is a view, partly in section, illustrating part of a truck in accordance with an embodiment of the invention.
  • the railcar truck 20 shown in Figure 1 includes a pair of spaced apart and generally parallel side frames 22 (only part of one of which is shown).
  • the side frames 22 are connected to one another by a transverse bolster (not shown).
  • Each side frame 22 includes a pedestal 24 at each end.
  • the pedestal 24 includes a first pedestal jaw 26 and a second pedestal jaw (not shown).
  • a pedestal cavity 30 is formed between the first and second pedestal jaws 26.
  • the first pedestal jaw 26 includes an inclined face 32 and the second pedestal includes a corresponding inclined face.
  • a saddle 35 is adapted to be located within the pedestal cavity 30.
  • a plurality of resilient coil springs 36 extend between the saddle 35 and the pedestal 24 such that the pedestal 24 is resiliently supported by the springs 36.
  • a bearing and an axle 38 of a wheel set is coupled to the saddle 35 such that the axle 38 is rotatable with respect to the saddle 35.
  • a plurality of friction wedges 39 having wear surfaces formed of, for example, composite material and steel or acicular iron, are resiliently biassed by one or more of the springs 36 into engagement with the pedestal 24 and the saddle 35 to dampen vertical and lateral movement of the pedestal 24 with respect to the saddle 35.
  • a wear member 40 is removably attached to the inside surface the inclined face 32 of the first pedestal jaw 26 and another wear member is also attached to the inside surface of the inclined face of the second pedestal jaw.
  • the wear member 40 is preferably formed from, for example, cast iron which has a kinetic coefficient of friction with steel or acicular iron of approximately 0.15.
  • the saddle 35 of the railcar truck includes a centre post 74 having a generally horizontal roof 76, a first side wall 78 that extends downwardly from the roof 76, and a second side wall 82 that extends downwardly from the roof 76.
  • the second side wall 82 is spaced apart from the first side wall 78 and a cavity 86 is formed therebetween.
  • a horizontal first shelf 88 extends outwardly from the bottom end of the first side wall 78 to one end of the saddle 35, a second shelf extends outwardly from the bottom end of the second side wall to a second end of the saddle 35.
  • Each shelf 88 is adapted to engage and support the bottom end of the springs 36.
  • the saddle 35 is supported on the bearing and axle 38 by a rocker adaptor member 42 which is secured to a resiliently deformable component 44.
  • the component 44 comprises a mounting plate 46 to which a layer 48 of a rubber or rubber-like resiliently deformable material is bonded.
  • a second mounting plate 50 is bonded to the layer 48.
  • the component 44 is secured to the roof 76 of the saddle 35 and to the rocker adaptor member 42 by means of bolts 52 (only those securing the component 44 to the saddle 35 being shown), but other securing means could be used if desired.
  • the use of bolts 52 allows replacement of the component 44 and/or adaptor member 42, for example in the event of damage or wear thereto. Further, shims can be introduced to allow height adjustment, for example to compensate for wear of the wheelset.
  • the inherent flexibility of the component 44 allows the rocker adaptor member to tilt relative to the saddle in the plane perpendicular and at right angles to the axial plane of the wheelset, thereby allowing resilient damping of lateral accelerations of the wheelset, as well as permitting limited vertical or lateral damping movement of the adaptor member.
  • the permitted angle of tilt between the rocker adaptor member and the saddle relative to the axial plane of the wheelset can be as much as approximately 10°.
  • lateral stops (not shown) are provided in or on the pedestal and/or the saddle to limit such tilting movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
EP04252929A 2003-05-23 2004-05-18 Montage des boítes d'essieux dans un bogie Withdrawn EP1479585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0311867 2003-05-23
GB0311867A GB0311867D0 (en) 2003-05-23 2003-05-23 Railcar truck

Publications (1)

Publication Number Publication Date
EP1479585A1 true EP1479585A1 (fr) 2004-11-24

Family

ID=9958635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04252929A Withdrawn EP1479585A1 (fr) 2003-05-23 2004-05-18 Montage des boítes d'essieux dans un bogie

Country Status (2)

Country Link
EP (1) EP1479585A1 (fr)
GB (2) GB0311867D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015159085A1 (fr) * 2014-04-16 2015-10-22 Wabtec Rail Scotland Limited Module de suspension pour un véhicule sur rail

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112937625B (zh) * 2021-01-08 2023-06-16 江苏纽尔轨道车辆科技有限公司 一种铁路货车及其转向架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841233A (en) * 1971-09-17 1974-10-15 Gloucester Railway Carriage Dampened railway car truck axles
US5009521A (en) * 1989-07-14 1991-04-23 A. Stucki Company Division Of Hansen, Inc. Railway truck and bearing adapter therefor, and method for controlling relative motion between truck components
US5237933A (en) * 1991-07-25 1993-08-24 Lord Corporation Service-life, low-profile, retrofittable, elastomeric mounting for three-piece, railroad-car trucks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276395A (en) * 1964-06-10 1966-10-04 Lord Corp Resilient roller bearing adapter
GB2035238B (en) * 1978-11-14 1983-03-23 British Steel Corp Railway wagon suspension units
US6142081A (en) * 1998-05-07 2000-11-07 Naco, Inc. Pedestal rocker seat for providing passive axle steering to a rigid railway truck

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841233A (en) * 1971-09-17 1974-10-15 Gloucester Railway Carriage Dampened railway car truck axles
US5009521A (en) * 1989-07-14 1991-04-23 A. Stucki Company Division Of Hansen, Inc. Railway truck and bearing adapter therefor, and method for controlling relative motion between truck components
US5237933A (en) * 1991-07-25 1993-08-24 Lord Corporation Service-life, low-profile, retrofittable, elastomeric mounting for three-piece, railroad-car trucks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015159085A1 (fr) * 2014-04-16 2015-10-22 Wabtec Rail Scotland Limited Module de suspension pour un véhicule sur rail

Also Published As

Publication number Publication date
GB0411004D0 (en) 2004-06-23
GB2401845A (en) 2004-11-24
GB0311867D0 (en) 2003-06-25

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