EP0365489A2 - Bogie à essieux dirigés pour véhicules ferroviaires - Google Patents

Bogie à essieux dirigés pour véhicules ferroviaires Download PDF

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Publication number
EP0365489A2
EP0365489A2 EP89830271A EP89830271A EP0365489A2 EP 0365489 A2 EP0365489 A2 EP 0365489A2 EP 89830271 A EP89830271 A EP 89830271A EP 89830271 A EP89830271 A EP 89830271A EP 0365489 A2 EP0365489 A2 EP 0365489A2
Authority
EP
European Patent Office
Prior art keywords
bogie
axles
cross members
bushes
transmission lever
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
EP89830271A
Other languages
German (de)
English (en)
Other versions
EP0365489A3 (fr
Inventor
Oreste Santanera
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.)
Fiat Ferroviaria SpA
Original Assignee
Fiat Ferroviaria 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 Fiat Ferroviaria SpA filed Critical Fiat Ferroviaria SpA
Publication of EP0365489A2 publication Critical patent/EP0365489A2/fr
Publication of EP0365489A3 publication Critical patent/EP0365489A3/fr
Ceased 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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/44—Adjustment controlled by movements of vehicle body

Definitions

  • the present invention relates in general to bogies for railway vehicles.
  • the term "bogie” means an assembly of two axles (each with two wheels) with their respective bushes, suspensions, connections, etc., whether the assembly is connected directly to the vehicle body (a two-axle vehicle) or is connected to a frame (in this case the "bogie frame") to form an "bogie proper” and therefore a vehicle including a body and two bogies or n bodies and n + 1 bogies (an articulated vehicle).
  • the bogies of railway vehicles are fundamental elements of railway technology and are called upon to provide an ever-increasing performance in the development of rail services.
  • the main quality characteristic is a reduction in time, that is, an increase in speed.
  • the main quality characteristic is an increase in traffic intensity insofar as it is compatible with maintenance.
  • the object of the present invention is to enable the production of bogies with steering axles which provide the best response to the conflicting requirements specified above by means of suitable variations, which can easily be carried out in practice, of the basic parameter constituted by the resilience of the longitudinal connections (in the X direction) between the bushes and the structure of the bogie.
  • a bogie for a railway vehicle is generally indicated 1 and is intended to be articulated to the body of the vehicle in a manner which is known and therefore not illustrated in detail in the drawings.
  • the articulation to the body, which is arranged in the central region of the bogie 1, is generally indicated 2 in Figure 1.
  • Resilient secondary suspension members 3 are associated therewith in known manner.
  • the bogie 1 is constituted, also in conventional manner, by a rigid or deformable frame 4 (in the latter case, for improving vertical adaptability to the track) carrying two axles 5 with respective wheels 6.
  • the two axles 5 are provided with respective bushes 7 at their ends and primary suspension springs 8 are interposed between the bushes and the frame 4.
  • the bogie 1 also includes members (not shown in the drawings) for transmitting traction and braking forces to the body, braking equipment, and possibly motors and their transmissions: these elements are generally conventional and, for brevity, will not therefore be described.
  • the two axles 5 are connected horizontally to the frame 4 by means of respective kinematic mechanisms, generally indicated 9, which permit longitudinal forces acting along a longitudinal axis X (parallel to the axis of the track), but not torques, to be transmitted between the axles 5 and the frame 4.
  • Each of the two kinematic mechanisms 9 includes a pair of longitudinal connecting rods 10, each of which is articulated at one end 11a to one of the bushes 7 and at the opposite end 11b to a respective right-angled lever 12 which is articulated centrally to the frame 4 about a vertical pin 13 with a cylindrical articulation.
  • Each right-angled lever 12 has a transverse arm 14 (that is, an arm parallel to the transverse axis Y of the bogie 1) to which the articulation end 11b of the respective connecting rod 10 is connected, and a longitudinal arm 15 (that is, an arm parallel to the longitudinal axis X of the bogie 1) which extends from the side opposite the respective connecting rod 10.
  • the ends 12′ of the longitudinal arms 15 of the right-angled levers 12 of each kinematic mechanism 9 are interconnected by means of a transverse rod 16 parallel to the transverse axis Y of the bogie 1.
  • the two cross members 16 associated with the two kinematic mechanisms 9 extend near the transverse centreline of the bogie 1.
  • the articulations 11a, 11b and 12′ are conveniently provided with resilient joints, not illustrated, as are the articulations between the pins 13 and the right-angled levers 12.
  • the invention provides for the connection of the two cross members 16 in various alternative or combined ways.
  • the latter are connectible to each other, to the frame 4 of the bogie 1, and to the frame of the body.
  • connection between the two cross members 16 can be achieved by means rigid or resilient members, with the possible addition of shock-absorbers.
  • the embodiment illustrated shows an example of a resilient connection achieved (as shown in greater detail in Figure 3) by means of a cylinder 17 whose axis is parallel to the transverse axis y of the bogie 1 (and therefore parallel to the cross members 16) and within which a piston-rod unit 18 is axially slidable against the action of springs 19.
  • the rod 18 and the opposite end of the cylinder 17 from the rod 18 react against respective bearing surfaces 20 which project longitudinally from the two cross members 16.
  • connection between the cross members 16 and the frame 4 of the bogie 1 is achieved by means of a transmission lever 21 with a central fulcrum 22 in the central region of one of the cross members 16 and an end fulcrum 23 on the frame 4.
  • the resilient interconnection 17-20 between the two cross members 16 is also present and a retaining device 24 is also provided which is operable selectively to lock the transmission lever 21 in a central position (shown in the drawings) in which it is aligned with the longitudinal axis X of the bogie 1, so as consequently to stop the movement of the cross members 16 and hence the pivoting of the right-angled levers 12.
  • the retaining device 24 which is shown in greater detail in Figure 5, comprises two cylinders 25 fixed to the frame 4 of the bogie 1 symmetrically and on opposite sides of a longitudinal appendage 26 of the transmission lever 21, the appendage extending from the side opposite the fulcrum 23.
  • the two cylinders 25 are aligned with each other parallel to the transverse axis Y of the bogie 1, and respective pistons 36 sealingly slidable in the cylinders are subject on one side to the action of one or more thrust springs 27 and on the opposite side to the action of a pressurised fluid, normally air, supplied by a source, not illustrated.
  • a rod or strut 28 is fixed to each piston 36 and projects sealingly from the respective cylinder 25 so as to cooperate with the appendage 26 of the transmission lever 21 in the manner explained below.
  • the retaining device 24 is omitted and the transmission lever 21 is connected to the body of the vehicle at 29, in a region intermediate its fulcra 22 and 23, by means of a vertical shaft 30 with two universal joints.
  • the shaft 30 may be replaced by an equivalent device for the transmission of torque only, whereby the pivoting movements between the body and the bogie force the lever 21 to pivot about the fulcrum 23 and hence the fulcrum 22 to be displaced transverse the longitudinal axis C of the bogie 1. Since, as stated, the fulcrum 22 is connected to one of the cross members 16, and since the two cross members 16 are interconnected by the resilient device 17-20, the body-bogie pivoting is transformed into two equal and opposite pivoting movements of the axles 5, which therefore assume a radial arrangement.
  • each of the two axles 5 is independent and connected to the bogie 1 only by means of the respective primary suspension 8, the connecting rods 10, the right-angled levers 12 and the transverse rods 16 which are free, that is, as stated, are connected neither to each other, nor to the frame 4, nor to the vehicle body.
  • each axle 5 is free to pivot relative to the frame 4 under the action of the forces developed between the wheels 6 and the rails which are opposed by the forces and torques, which may be very small, which oppose the movements of the unit constituted by the axles 5, the connecting rods 10, the right-angled levers 12, and the transverse rods 16.
  • the bogie 1 is provided with a connection between the two kinematic mechanisms 9 and the frame 4, as well as with the retaining device 24.
  • a change from one of the arrangements III1 - III2 to the other can be effected easily by means of conventional solenoid valves which are activated or de-activated in dependence on the speed or the type of line.
  • the bogie 1 is provided with a connection between the kinematic mechanisms 9 and the body of the vehicle by means of the transmission lever 21 and the shaft 30, whilst the retaining device 24 is absent.
  • pivoting between the body and the bogie 1 causes, by means of the lever 21 and the kinematic mechanisms 9, equal and opposite pivoting of the two axles 5 which are therefore steered independently of any other movement (vertical, transverse, longitudinal) of the secondary suspension 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Vehicle Body Suspensions (AREA)
EP89830271A 1988-10-19 1989-06-20 Bogie à essieux dirigés pour véhicules ferroviaires Ceased EP0365489A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6794088 1988-10-19
IT8867940A IT1224663B (it) 1988-10-19 1988-10-19 Carrello ad assi sterzanti per veicoli ferroviari

Publications (2)

Publication Number Publication Date
EP0365489A2 true EP0365489A2 (fr) 1990-04-25
EP0365489A3 EP0365489A3 (fr) 1990-08-08

Family

ID=11306549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830271A Ceased EP0365489A3 (fr) 1988-10-19 1989-06-20 Bogie à essieux dirigés pour véhicules ferroviaires

Country Status (2)

Country Link
EP (1) EP0365489A3 (fr)
IT (1) IT1224663B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211116A (en) * 1988-08-30 1993-05-18 Sig Schweizerische Industrie-Gesellschaft Bogie for high-speed rail vehicles
US5249530A (en) * 1992-05-26 1993-10-05 Westinghouse Electric Corp. Forced steering railroad truck system with central transverse pivoted shaft
AT404010B (de) * 1994-06-09 1998-07-27 Waagner Biro Ag Fahrwerk, insbesondere drehgestell für ein schienenfahrzeug wie z. b. für den wagen einer standseilbahn
US6932173B2 (en) * 2000-07-13 2005-08-23 Stephen Carl Henderson Steered vehicle
EP2086812A1 (fr) * 2007-12-06 2009-08-12 Korea Railroad Research Institute Bogie directeur actif pour vehicules ferroviaires utilisant un bras de levier
US7845287B2 (en) 2007-06-05 2010-12-07 Restruck Technologies Inc. Steered axle railway truck
WO2016098316A1 (fr) * 2014-12-17 2016-06-23 川崎重工業株式会社 Bogie de direction pour véhicule ferroviaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109878402B (zh) * 2019-04-17 2024-07-23 西南交通大学 一种用于铁路车厢运送的agv运输车

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850624C (de) * 1944-06-27 1952-09-25 Esslingen Maschf Achssteuerung fuer Drehgestelle mit Lenkstangensteuerung
DE3119164A1 (de) * 1981-05-14 1982-12-02 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Luftfederdrehgestell mit radial einstellbaren radsaetzen
EP0258502A1 (fr) * 1986-08-27 1988-03-09 General Motors Corporation Bogie ferroviaire autodirecteur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850624C (de) * 1944-06-27 1952-09-25 Esslingen Maschf Achssteuerung fuer Drehgestelle mit Lenkstangensteuerung
DE3119164A1 (de) * 1981-05-14 1982-12-02 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Luftfederdrehgestell mit radial einstellbaren radsaetzen
EP0258502A1 (fr) * 1986-08-27 1988-03-09 General Motors Corporation Bogie ferroviaire autodirecteur

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211116A (en) * 1988-08-30 1993-05-18 Sig Schweizerische Industrie-Gesellschaft Bogie for high-speed rail vehicles
US5249530A (en) * 1992-05-26 1993-10-05 Westinghouse Electric Corp. Forced steering railroad truck system with central transverse pivoted shaft
EP0572186A1 (fr) * 1992-05-26 1993-12-01 Westinghouse Electric Corporation Système de bogie ferroviaire à guidage forcé
AT404010B (de) * 1994-06-09 1998-07-27 Waagner Biro Ag Fahrwerk, insbesondere drehgestell für ein schienenfahrzeug wie z. b. für den wagen einer standseilbahn
US6932173B2 (en) * 2000-07-13 2005-08-23 Stephen Carl Henderson Steered vehicle
US7845287B2 (en) 2007-06-05 2010-12-07 Restruck Technologies Inc. Steered axle railway truck
EP2086812A1 (fr) * 2007-12-06 2009-08-12 Korea Railroad Research Institute Bogie directeur actif pour vehicules ferroviaires utilisant un bras de levier
EP2086812A4 (fr) * 2007-12-06 2013-03-27 Korea Railroad Res Inst Bogie directeur actif pour vehicules ferroviaires utilisant un bras de levier
WO2016098316A1 (fr) * 2014-12-17 2016-06-23 川崎重工業株式会社 Bogie de direction pour véhicule ferroviaire
JPWO2016098316A1 (ja) * 2014-12-17 2017-04-27 川崎重工業株式会社 鉄道車両用の操舵台車
CN107000770A (zh) * 2014-12-17 2017-08-01 川崎重工业株式会社 铁道车辆用导向转向架
US10131368B2 (en) 2014-12-17 2018-11-20 Kawasaki Jukogyo Kabushiki Kaisha Steering bogie for railcar
CN107000770B (zh) * 2014-12-17 2020-07-03 川崎重工业株式会社 铁道车辆用导向转向架

Also Published As

Publication number Publication date
IT8867940A0 (it) 1988-10-19
IT1224663B (it) 1990-10-18
EP0365489A3 (fr) 1990-08-08

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