EP0334418A1 - Drehgestell für Eisenbahnpersonenwagen mit einem durchgehenden Flur auf Bahnsteighöhe - Google Patents

Drehgestell für Eisenbahnpersonenwagen mit einem durchgehenden Flur auf Bahnsteighöhe Download PDF

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Publication number
EP0334418A1
EP0334418A1 EP89200597A EP89200597A EP0334418A1 EP 0334418 A1 EP0334418 A1 EP 0334418A1 EP 89200597 A EP89200597 A EP 89200597A EP 89200597 A EP89200597 A EP 89200597A EP 0334418 A1 EP0334418 A1 EP 0334418A1
Authority
EP
European Patent Office
Prior art keywords
bogie
carriage
suspension
frame
transport
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Withdrawn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
EP89200597A
Other languages
English (en)
French (fr)
Inventor
Pietro C/O S.P.A. Societa' Miniotto
Augusto C/O S.P.A. Societa' Gori
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.)
SpA Casseforme Metalliche E Affini Sacma Soc
Sacma SpA
Original Assignee
SpA Casseforme Metalliche E Affini Sacma Soc
Sacma SpA
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 SpA Casseforme Metalliche E Affini Sacma Soc, Sacma SpA filed Critical SpA Casseforme Metalliche E Affini Sacma Soc
Publication of EP0334418A1 publication Critical patent/EP0334418A1/de
Withdrawn legal-status Critical Current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
    • B61F5/50—Other details
    • B61F5/52—Bogie frames
    • 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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04—Bolster supports or mountings
    • B61F5/10—Bolster supports or mountings incorporating fluid 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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/14—Side bearings
    • 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
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes

Definitions

  • This invention relates to a bogie for railway carriages for the transport of passengers which makes it possible for the floor of the carriage to be placed at a low height above the plane of the rails, and in any event at a height lower than the maximum diameter of the wheels.
  • a suitable arrangement consists of constructing the floor of the carriage at the same level as the station platform so as to prevent the movement of passengers leaving and alighting from the carriage being slowed down by the need to negotiate one or more steps.
  • Carriages in which the floor is at a low level over a greater part of the carriage, corresponding to the new platforms abovementioned, are known, but there are several access steps to the end parts with a raised floor beneath which the bogies are mounted.
  • this invention provides a bogie for railway carriages for the transport of passengers incorporating a frame on which the body of the carriage rests with intermediate secondary suspension means suspended beneath two pairs of journal boxes carrying wheelsets respectively with intermediate primary means of suspension in which the secondary means of suspension are at least partially contained within the vertical dimensions of the frame and the primary means of suspension are contained within the vertical dimension of the wheels of the wheelsets, the bogie being capable of carrying the body of a carriage with a floor of which at least one portion in the part above the bogie is at a level below the vertical dimension of the wheels, with provision for removable braking means and means for controlling and limiting rolling movement of the body with respect to the bogie.
  • the frame of the bogie consists of a pair of side members connected in the central area to a pair of parallel transverse beams some distance apart bounding at least one opening in the position of the centre of gravity of the frame itself within which are housed the secondary means of suspension attached to the frame of the bogie and to the body of the carriage and supporting the latter, with corresponding journal boxes supporting the wheelsets with corresponding primary means of suspension being also present at the ends of the side members.
  • the frame of the bogie is constructed of a pair of longitudinal side members connected in the central portion by means of a pair of parallel transverse beams some distance apart which in turn are connected together by means of a central cross-member bounding a pair of openings which are aligned transversely to the direction of motion of the bogie, within which are mounted the secondary means of suspension carrying the shell of the carriage.
  • the secondary suspension consists of one or more pneumatically damped springs fitted with corresponding shock absorbers.
  • journal boxes bearing the wheelsets with the intervening members of the primary suspension each consist of a journal box arm connected by a hinge to the end of one of the side members above it and further connected to the side member by at least one tie rod with the primary means of suspension in between.
  • each journal box supporting one end of a wheelset there rest elastic means comprising the primary suspension at the top of which there is a cap which is in turn attached by means of a pair of tie bars to the ends of the side member on which the journal box is hinged, the side member in this way bearing on the journal box, parallel to the elastic means, with a shock absorber member being also placed between the journal box and the cap.
  • the dismantlable braking means consist of a jaw member for each journal box attached by detachable means of attachment to the journal box and enclosing the adjacent wheel, bearing a pair of cylinder and piston actuators each of which are provided with a corresponding wearing surface which can be tightened against corresponding braking discs attached to the opposite sides of the wheel.
  • the means for controlling and limiting rolling movement of the body with respect to the bogie consist of a transmission bar connecting the body of the carriage to the bogie, comprising an axially and torsionally rigid rod provided at its ends with elastic universal joints which are connected to the body and the bogie frame respectively, these joints comprising elastic means of connection with a high rigidity in the vertical plane transverse to the direction of movement of the carriage.
  • the elastic means of connection with a high rigidity in the vertical plane transverse to the direction of movement of the carriage consist of a bush placed between and attached to a fixed portion of the joint, integral with the frame of the bogie or the body of the carriage and a mobile portion attached to the rod bearing the joints at its ends, this bush consisting of a rubber ring or the like which is integral with a retaining ring and has greater flexural rigidity in a vertical plane transverse to the direction of movement of the carriage than its flexural rigidity in a vertical plane parallel to the direction of motion of the said carriage.
  • the bogie according to the invention indicated as a whole by 1, has a structure whereby the floor 2 of the carriage 3 which its supports, showned by a dotted and dashed line, is kept at a particularly low level in comparison with the plane of the rails 4, virtually only the height of the structure bearing the load of the carriage above axle 5.
  • the bogie has a frame 7, conveniently of a sheet box structure, comprising two side members 8 which are parallel to the direction of movement of the carriage connected in their central area by two transverse beams 9 which together with a central cross-member 9a bound two symmetrical quadrangular openings 10a.
  • a frame 7 conveniently of a sheet box structure, comprising two side members 8 which are parallel to the direction of movement of the carriage connected in their central area by two transverse beams 9 which together with a central cross-member 9a bound two symmetrical quadrangular openings 10a.
  • these openings 10a are two corresponding cross-members 10, the ends of whose arms rest on corresponding supports 10b on side members 8, beams 9 and cross-member 9a.
  • Cross-members 10 have pneumatically damped springs 11 comprising the secondary suspension of the bogie on which the body of the carriage is supported.
  • damped springs are mounted within openings 10a and their dimension in a vertical direction is substantially equal to or slightly greater than the thickness of the frame of the bogie itself, so that the surface of the body supported on the springs lies at a level slightly above the upper plane of frame 8.
  • Advantageously pneumatic springs 11 are fed from a single main which ensures that pressures between the springs are equalised and behave in a similar manner to a single spring placed in a central position on the frame.
  • Frame 7 is also attached to body 3 of the carriage by vertical shock absorbers 12 and horizontal shock absorbers 13 which control its movements.
  • Stop buffers which are not illustrated, are also provided on the bogie frame and on the body in order to limit movement of the bogie with respect to the body in a transverse direction, to supplement the elastic restoration provided by the pneumatic springs.
  • Spring 17 of the primary suspension rests on each journal box and is topped by a cap 18 which is connected by a pair of tie rods 19 to the end of one side member.
  • the tie rods are connected to the cap and the journal box by spherical hinges which allow the cap and the spring on which it rests to follow all the movements dictated by the journal box.
  • a shock absorber 20 is also fitted between cap 18 and journal box 15.
  • Journal boxes 15 bear the brakes 21, each consisting of a jaw 22 enclosing a wheel and connected to the journal box, bearing a pair of opposing cylinders 23 and fitted with linings 24 which act on discs 24a located on either side of the wheel.
  • Cylinders 23 may be hydraulic, like those used in motor vehicles, or pneumatic, as already used in railways, of suitable size.
  • This structure also particularly assists maintenance and repair, because the entire brake jaw together with the hydraulic cylinders and the corresponding linings can be quickly dismantled from the journal box for inspection or repair and replaced by a new one without the carriage to which the bogie is fitted being obliged to be out of service for some time.
  • the frame of the bogie is connected to the shell in the longitudinal direction by a draw bar 25 which also has the effect of controlling rolling of the shell.
  • bar 25 has joints 26 providing a connection to the shell and to the bogie as illustrated in the overall side view in Figure 1 and in greater detail in Figures 4 to 7.
  • each joint 26 has a body 27 which is rigidly attached to bar 25 bearing horizontal axis rollers 28 inserted in corresponding forks 29 of a seat 30 which is integral with the bogie frame or the carriage shell.
  • Pin 31 Within body 27 there is a vertical axis pin 31 connected to body 27 by a rubber bush 32 provided with an outer metal retaining ring 32a.
  • Pin 31 has profiled end portions 33 by which it is fixed in corresponding recesses 34 in seat 30, for example by means of bolts inserted in the corresponding threaded holes 35, as illustrated by the dotted and dashed line in Figure 7.
  • Bush 32 has different degrees of stiffness for oscillations and displacements in the vertical plane containing the axis of bar 25 and in the vertical plane at right angles thereto, in particular less rigidity in the plane of the rod and greater rigidity in the plane transverse to the rod. In this way the longitudinal dynamic force on the shell induced by pitching movements of the bogie are appreciably reduced while the greater rigidity in the plane transverse to the bar conferred on the joint by rollers 28 inserted in forks 29 controls rolling movements between the shell and the bogie, impeded by the torsional resistance of bar 25.
  • the torsional deformability of bush 32 allows the bogie to rotate when the carriage enters a curve.
  • the structure according to the invention thus makes it possible to provide a bogie whose frame does not get in the way between the axles and the lower plane of the shell, thus enabling the greater part of the latter to be placed at the lowest height above the axles compatible with the movement of the suspension, with only restricted parts of that plane being at a level higher than the diametral dimension of the wheels, with the primary suspension contained within the height of the wheels, thus offering the possibility of reducing the difference in level between the floor and station platforms to the point where it even no longer exists, without thereby reducing the structural strength of the bogie frame.
  • a plurality of variants may be introduced without thereby going beyond the scope of the general characteristics of the invention.
EP89200597A 1988-03-16 1989-03-09 Drehgestell für Eisenbahnpersonenwagen mit einem durchgehenden Flur auf Bahnsteighöhe Withdrawn EP0334418A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8819794A IT1216106B (it) 1988-03-16 1988-03-16 Carrello per carrozze ferroviarie passeggeri con piano di calpestio a livello del marciapiede perl'intera carrozza.
IT1979488 1988-03-16

Publications (1)

Publication Number Publication Date
EP0334418A1 true EP0334418A1 (de) 1989-09-27

Family

ID=11161269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89200597A Withdrawn EP0334418A1 (de) 1988-03-16 1989-03-09 Drehgestell für Eisenbahnpersonenwagen mit einem durchgehenden Flur auf Bahnsteighöhe

Country Status (2)

Country Link
EP (1) EP0334418A1 (de)
IT (1) IT1216106B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119736A (en) * 1990-03-13 1992-06-09 Fi. Re. Ma. System S.P.A. Motor-driven bogie with independent wheels for platform cars
CN103072590A (zh) * 2011-10-26 2013-05-01 同济大学 一种低地板车悬挂式转向架
CN110816573A (zh) * 2018-08-09 2020-02-21 阿尔斯通运输科技公司 车辆高度控制方法及相关车辆

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107662620B (zh) * 2017-10-30 2024-02-06 中唐空铁集团有限公司 一种空铁动力悬挂机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046619A1 (de) * 1980-08-27 1982-03-03 Sab Industri Ab Schienenfahrzeug-Scheibenbremsanordnung
EP0134201A2 (de) * 1983-07-29 1985-03-13 FIAT FERROVIARIA SAVIGLIANO S.p.A. Zweiachsiges niedriges Drehgestell
EP0177460A2 (de) * 1984-10-05 1986-04-09 FIAT FERROVIARIA SAVIGLIANO S.p.A. Drehgestell mit freilaufenden Rädern für Schienenfahrzeuge
EP0181295A2 (de) * 1984-11-02 1986-05-14 FIAT FERROVIARIA SAVIGLIANO S.p.A. Zweiachsiges Drehgestell mit mittlerer Abstützung für zwei- oder mehrgliedrige Eisen- oder Strassenbahnfahrzeuge
EP0183619A1 (de) * 1984-11-29 1986-06-04 Alsthom Creusot Rail Tragdrehgestell für Schienenfahrzeuge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046619A1 (de) * 1980-08-27 1982-03-03 Sab Industri Ab Schienenfahrzeug-Scheibenbremsanordnung
EP0134201A2 (de) * 1983-07-29 1985-03-13 FIAT FERROVIARIA SAVIGLIANO S.p.A. Zweiachsiges niedriges Drehgestell
EP0177460A2 (de) * 1984-10-05 1986-04-09 FIAT FERROVIARIA SAVIGLIANO S.p.A. Drehgestell mit freilaufenden Rädern für Schienenfahrzeuge
EP0181295A2 (de) * 1984-11-02 1986-05-14 FIAT FERROVIARIA SAVIGLIANO S.p.A. Zweiachsiges Drehgestell mit mittlerer Abstützung für zwei- oder mehrgliedrige Eisen- oder Strassenbahnfahrzeuge
EP0183619A1 (de) * 1984-11-29 1986-06-04 Alsthom Creusot Rail Tragdrehgestell für Schienenfahrzeuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119736A (en) * 1990-03-13 1992-06-09 Fi. Re. Ma. System S.P.A. Motor-driven bogie with independent wheels for platform cars
CN103072590A (zh) * 2011-10-26 2013-05-01 同济大学 一种低地板车悬挂式转向架
CN110816573A (zh) * 2018-08-09 2020-02-21 阿尔斯通运输科技公司 车辆高度控制方法及相关车辆

Also Published As

Publication number Publication date
IT1216106B (it) 1990-02-22
IT8819794A0 (it) 1988-03-16

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