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WO2013030616A1 - Ensemble bogie ferroviaire doté d'un adaptateur pour suspension - Google Patents

Ensemble bogie ferroviaire doté d'un adaptateur pour suspension Download PDF

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Publication number
WO2013030616A1
WO2013030616A1 PCT/IB2011/002651 IB2011002651W WO2013030616A1 WO 2013030616 A1 WO2013030616 A1 WO 2013030616A1 IB 2011002651 W IB2011002651 W IB 2011002651W WO 2013030616 A1 WO2013030616 A1 WO 2013030616A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
railway
adapter
railway bogie
previous
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
PCT/IB2011/002651
Other languages
English (en)
Inventor
Laurent Paulin
Thierry Le Moigne
Rolf SCMIECHEN
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Priority to PCT/IB2011/002651 priority Critical patent/WO2013030616A1/fr
Priority to CN201180074355.XA priority patent/CN103889809A/zh
Priority to EP11808317.9A priority patent/EP2748048A1/fr
Publication of WO2013030616A1 publication Critical patent/WO2013030616A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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

  • railway bogie assembly with adapter for suspension The invention relates to a railway bogie assembly comprising at least two suspensions on an axlebox and having an adapter being required for mounting the said suspension to a bogie frame.
  • Railway bogie assembly generally comprises:
  • a wheelset comprising a rotatable axle, wheels mounted on the axle and at least one axlebox wherein at least one rolling bearing is mounted for supporting the rotatable axle;
  • suspensions mounted on an axlebox link arm, the said suspensions being of any type such as helical springs from UIC standards or hydraulic suspensions such as disclosed in US2002-0089102;
  • Adapters are basically welded to the lower surface of the bogie frame and fixed via assembling means to the axlebox. In case of freight rail vehicles, the adapter can be directly fast with the axlebox suspensions.
  • One object of the present invention is to overcome these drawbacks by providing a railway bogie assembly comprising at least one axlebox with at least one suspension, so that the railway bogie has an improved adapter for facilitating the mounting process and having reduced weight.
  • such an adapter is characterized in that it comprises at least one bracket fast with the bogie frame and mounted upon the at least one suspension, the said at least one bracket comprising an inner empty volume with a lower surface S 2 substantially greater than an upper surface Si.
  • An assembling plate is fast with the bottom surface of the said at least one bracket. This assembling plate is dedicated to be mounted on an assembling surface defined on the top of the suspension.
  • the inner empty volume of the bracket is defined by the bracket walls, the assembling plate on the underside and the bogie frame on the top.
  • the lower surface S 2 is covered by the assembling plate and the upper surface Si is covered by the bogie frame.
  • an adapter may incorporate one or several of the following features as long there is no contradiction:
  • the at least one bracket is positioned under a horizontal section of the bogie frame.
  • each bracket is provided with an assembling opening in which assembling means can fit. It permits the assembly of the adapter fast with the bogie frame to the at least one axlebox.
  • the assembling means can be on any type such as bolts, rivets, mounting lugs or others without being a limitation for the present invention.
  • each bracket is welded to the suspension.
  • the adapter fast with the bogie frame cooperates with an adapter fast with the suspension in order to have the wheelset able to support the bogie frame.
  • the adapter comprises a lateral wall which is substantially perpendicular to the bogie frame section on which the adapter is fast .
  • the at least one bracket comprises a lateral wall having a U-shape on cross-section defined with a horizontal plane.
  • the at least one bracket comprises at least one side wall fast with the lateral wall.
  • the said side wall forms an obtuse angle ⁇ with the upper surface Sx and an acute angle a with the lower surface S 2 .
  • the at least one bracket comprises at least one side wall being a plane surface.
  • the at least one bracket comprises at least one side wall having a curved section.
  • a curved section permits a better force distribution on the entirety of the side wall compared to a plane surface in which the forces are concentrated in specific locations. The risks of damage and fatigue rupture are then strongly reduced.
  • the at least one side wall has a curved section defining an obtuse angle ⁇ with upper surface Si and an acute angle a with the lower surface S 2 .
  • the said angles a and ⁇ are substantially equal to 90° at the junction between the side wall and the lateral wall. Therefore the angle ⁇ constantly increases while the angle a constantly decreases up to the extreme left end of the side wall curvature .
  • the at least one bracket comprises a lateral wall with a U- shape and a recess.
  • the at least one axlebox comprises at least two suspensions.
  • the adapter comprises a first bracket and a second bracket at each end.
  • the said first and second brackets are linked together by an elongated part.
  • Any additional bracket is optionally placed between the said first and second brackets and fast with the elongated part.
  • These additional brackets can be of any type (cylindrical or other) without being a limitation for the invention.
  • Such an elongated part permits a facilitated assembling and a better adjustment of the adapter positioning on the bogie frame compared to the use of separated and distinct brackets.
  • the elongated part enables a better distribution of forces and avoids having too important stress on the brackets alone .
  • the first bracket is positioned under a horizontal section of the bogie frame.
  • the second bracket is positioned under an inclined section of the frame bogie. It comprises a surrounding wall which defines an empty volume and an assembling plate.
  • this bracket is provided with an upper opening on its upper surface wherein the assembling means can fit. Such an opening permits an optimization of the necessary available space since it requires a reduced height of the second bracket, and then a reduced amount of material. Moreover, the adapter rigidity is improved.
  • the at least one bracket comprises lateral and side walls having a thickness comprised between 10 and 20 mm.
  • - Brackets are rigidly maintained to the elongated part and/or the bogie frame by rigidity means.
  • the complete adapter is molded.
  • the adapter is directly welded to the bogie frame or is welded to the bogie frame via the elongated part.
  • bracket design compared to a standard cylindrical bracket is that less material is required and enables a weight reduction, but without decreasing the bracket rigidity.
  • U-shape of the bracket lateral wall allows a passage for eventually the insertion of assembling means and/or tools by an operator during manufacturing.
  • the side wall is fast with the lateral wall after the assembly phase.
  • this one has a reduced length with such a bracket design compared to standard cylindrical brackets .
  • a railway coach is mounted upon the railway bogie and directly supported by the bogie frame for permitting the railway coach displacement on rail tracks. Moreover, one can mount two railway bogies at each end of the railway coach for supporting it.
  • FIG. 1 is a side view of the railway bogie
  • Figure 2 is a perspective view of the left part of the railway bogie assembly according to the first embodiment
  • Figure 3 is a longitudinal cross section of the adapter according to the first embodiment mounted on the axlebox;
  • Figures 4a to 4e are face, top, bottom, right and left side views respectively of the adapter according to one embodiment
  • Figure 5 is a perspective view of the adapter according to another embodiment.
  • FIG 6 is a perspective view of the left part of the railway bogie assembly according to another embodiment.
  • Figure 1 and 2 show views of the railway bogie assembly 1 of the so-called Y 25 type.
  • the railway bogie 1 comprises two axleboxes 2 whereby their housings 3 enclose at least one rolling bearing (not shown) for supporting each one end of rotatable axles (not shown) having a rotation axis X-X' .
  • Each pair of wheels 4 is fixed to one rotatable axle. Since the left and the right axlebox assemblies are identical, the following drawing description will only describe the left railway bogie side.
  • Each axlebox 2 is extended to the left and the right side by two link arms 5 on which suspensions 6 are mounted on each of said link arms 5.
  • the link arms 5 and their associated suspensions 6 are symmetrical about a substantially vertical axis ⁇ - ⁇ ' through the middle of the axlebox 2.
  • the vertical axis ⁇ - ⁇ ' is perpendicular to the substantially horizontal axis X-X' .
  • the railway bogie assembly 1 also comprises a bogie frame 7 which is mounted on the axleboxes 2 via the suspensions 6 and an adapter 100.
  • the adapter 100 comprises a first bracket 101 and a second bracket 102 at each end, linked together by an elongated part 105.
  • An assembling plate 103, 104 is fast with the bottom surface of the first bracket 101 and the second bracket 102 respectively.
  • the first bracket 101 is dedicated to be positioned under the horizontal section 115 of the bogie frame 7.
  • the first bracket 101 comprises a lateral wall 106 which is parallel with the vertical axis ⁇ - ⁇ ' .
  • the cross-section along a horizontal plane 2 ⁇ 2 ' of the lateral wall 106 has a U-shape.
  • a side wall 107 which is a plane surface is fast with the lateral wall 106.
  • An inner empty volume 116 defined by the walls 106, 107 defines a lower surface S 2 and an upper surface S x .
  • the lower surface S 2 is covered by the assembling plate 103 on the underside and the upper surface Si is covered on the top by the elongated part 105
  • the inner empty volume 116 is such that the lower surface S 2 is strictly greater than the upper surface Si.
  • the side wall 107 is then inclined forming an obtuse angle ⁇ with the elongated part 105, and an acute angle with the mounting plate 103.
  • the second end bracket 102 of the frame adapter 100 is placed under the inclined section 109 of the bogie frame 7.
  • An inner empty volume 117 is defined by a surrounding wall 110, the elongated part 105 on the top, and the assembling plate 104 on the underside.
  • the said surrounding wall 110 is parallel to the vertical axis ⁇ - ⁇ ' .
  • Each assembling plate 103, 104 is mounted upon an assembling surface 9, 10 respectively defined on the top of each suspension 6
  • the assembling plates 103, 104 are provided with an assembling opening 108, 111 respectively in which assembling means 8 are inserted for attaching the adapter 100 to each suspension 6 of the axlebox 2.
  • the elongated part 105 is provided with an inclined end 118 which is located under the inclined section 109 of bogie frame. This inclined end 118 is provided with an upper opening 112 above the second bracket 102. Therefore tools can be inserted during manufacturing and/or upper part of assembling means 8 can fit in the elongated part thickness.
  • Both brackets 101 and 102 are rigidly maintained to the elongated part 105 by rigidity means 113, 114.
  • an adapter 200 comprises a first bracket 201 and a second bracket 102 at each end, linked together by an elongated part 105.
  • the first bracket 201 comprises a lateral wall 106 and a side wall 207 having a curved section.
  • the side wall 207 defines an obtuse angle ⁇ with the upper surface Si and an acute angle a with the lower surface S 2 .
  • the said angles . and ⁇ are substantially equal to 90° at the junction between the side wall 207 and the lateral wall 106. Since the lower surface S 2 is strictly greater than the upper surface S ir the curved side wall 107 is inclined and the angle ⁇ constantly increases while the angle a constantly decreases up to the extreme left end of the side wall 207 curvature.
  • an adapter 300 comprises a first bracket 301 and a second bracket 302 at each end, linked together by an elongated part 305.
  • the first bracket 301 comprises a lateral wall 106 having a U-shape and the extreme end surface of the bracket 301 is a recess 307.
  • the inner empty volume 116 defined by the lateral wall 106 and the recess 307 is covered on the top by the end of the elongated part 305 and on the underside by the assembling plate 103.
  • This inner empty volume 116 is such as the lower surface covered by the assembling plate 103 is strictly greater than the upper surface covered by the end of the elongated plate 305.
  • the recess 307 has an inclined plane shape and forms an obtuse angle with the elongated part 305, and an acute angle with the assembling plate 103.
  • the second end bracket 302 is such that the elongated part 305 is directly attached to the surrounding wall 110 and does not cover the second bracket empty volume 117.
  • the upper inclined surface 309 is then provided with a wide upper opening 312 in which tools can be inserted during manufacturing and/or upper part of assembling means 8 engaged in opening 111 can fit.
  • a railway coach (not shown) is mounted upon the railway bogie 1 and directly supported by the bogie frame 7 for permitting the railway coach displacement on rail tracks. Moreover, one can mounts two railway bogies 1 at each end of the railway coach for supporting it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Automatic Assembly (AREA)

Abstract

La présente invention se rapporte à un bogie ferroviaire (1) comprenant un châssis (7) de bogie, un ensemble de roues comprenant des roues (4) montées sur un essieu rotatif ayant un axe de rotation (X-X'), au moins une boîte d'essieu (2) où au moins un palier à roulement est un ensemble pour supporter l'essieu rotatif et au moins une suspension (6) montée sur un bras de liaison (5) de ladite ou desdites boîtes d'essieu (2), et un adaptateur (100 ; 200 ; 300) fixé au châssis (7) de bogie par le haut et supporté par ladite ou lesdites suspensions (6) par le bas. Ledit adaptateur (100 ; 200 ; 300) comprend au moins un support (101 ; 201 ; 301), où une plaque d'assemblage (103) est fixée à la surface inférieure dudit ou desdits supports (101 ; 201 ; 301) et est montée sur une surface d'assemblage (9) délimitée en haut de ladite ou desdites suspensions (6) ; et un volume intérieur vide (117) est délimité à l'intérieur dudit ou desdits supports (101 ; 201 ; 301) par des parois de support et délimitant une surface inférieure (S2) et une surface supérieure (S1), la surface inférieure (S2) étant sensiblement plus grande que la surface supérieure (S1).
PCT/IB2011/002651 2011-08-26 2011-08-26 Ensemble bogie ferroviaire doté d'un adaptateur pour suspension Ceased WO2013030616A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/IB2011/002651 WO2013030616A1 (fr) 2011-08-26 2011-08-26 Ensemble bogie ferroviaire doté d'un adaptateur pour suspension
CN201180074355.XA CN103889809A (zh) 2011-08-26 2011-08-26 具有用于悬架的适配器的铁路转向架组件
EP11808317.9A EP2748048A1 (fr) 2011-08-26 2011-08-26 Ensemble bogie ferroviaire doté d'un adaptateur pour suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2011/002651 WO2013030616A1 (fr) 2011-08-26 2011-08-26 Ensemble bogie ferroviaire doté d'un adaptateur pour suspension

Publications (1)

Publication Number Publication Date
WO2013030616A1 true WO2013030616A1 (fr) 2013-03-07

Family

ID=45478370

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/002651 Ceased WO2013030616A1 (fr) 2011-08-26 2011-08-26 Ensemble bogie ferroviaire doté d'un adaptateur pour suspension

Country Status (3)

Country Link
EP (1) EP2748048A1 (fr)
CN (1) CN103889809A (fr)
WO (1) WO2013030616A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2062797A1 (de) * 1970-12-19 1972-07-20 Rheinstahl Ag Transporttechnik, 5931 Netphen Dreis-Tiefenbach Federung für Fahrzeuge
US4552074A (en) * 1983-11-21 1985-11-12 Amsted Industries Incorporated Primary suspension for railroad car truck
US20020089102A1 (en) 2000-12-22 2002-07-11 Volker Gedenk Hydraulic spring
WO2005091698A2 (fr) * 2004-03-26 2005-10-06 Ab Skf Bogie de voie ferree

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2375534Y (zh) * 1999-06-03 2000-04-26 株洲车辆厂 铁道货车用整体构架式焊接转向架
DE102008042198B4 (de) * 2008-09-18 2012-03-08 Andreas Fiedler Güterwagendrehgestell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2062797A1 (de) * 1970-12-19 1972-07-20 Rheinstahl Ag Transporttechnik, 5931 Netphen Dreis-Tiefenbach Federung für Fahrzeuge
US4552074A (en) * 1983-11-21 1985-11-12 Amsted Industries Incorporated Primary suspension for railroad car truck
US20020089102A1 (en) 2000-12-22 2002-07-11 Volker Gedenk Hydraulic spring
WO2005091698A2 (fr) * 2004-03-26 2005-10-06 Ab Skf Bogie de voie ferree

Also Published As

Publication number Publication date
CN103889809A (zh) 2014-06-25
EP2748048A1 (fr) 2014-07-02

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