EP0683081A1 - Ein mit einem Wagenkasten-Neigungssystem ausgerüstetes Drehgestell für ein Eisenbahnfahrzeug - Google Patents

Ein mit einem Wagenkasten-Neigungssystem ausgerüstetes Drehgestell für ein Eisenbahnfahrzeug Download PDF

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Publication number
EP0683081A1
EP0683081A1 EP95107628A EP95107628A EP0683081A1 EP 0683081 A1 EP0683081 A1 EP 0683081A1 EP 95107628 A EP95107628 A EP 95107628A EP 95107628 A EP95107628 A EP 95107628A EP 0683081 A1 EP0683081 A1 EP 0683081A1
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EP
European Patent Office
Prior art keywords
center
car
tilting
tilt
bogie
Prior art date
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Granted
Application number
EP95107628A
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English (en)
French (fr)
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EP0683081B1 (de
Inventor
Isao Okamoto
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Railway Technical Research Institute
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Railway Technical Research Institute
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Publication date
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Publication of EP0683081A1 publication Critical patent/EP0683081A1/de
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    • 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
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies

Definitions

  • the present invention relates to a bogie equipped with a body-tilting system for a railway car in which running performance of a railway car going around curves in railway tracks is improved.
  • Fig. 8 is a schematic front view illustrating a positional relation between the center of gravity, the center of tilting, the center of axle springs and the center of bolster springs (air springs) of a car body in a conventional railway car with an active body-tilt system (so called a pendulum train).
  • Fig. 9 is a schematic front view illustrating the car of Fig. 8 in a tilted state.
  • Figs. 8 and 9 1 denotes a car body, 2 bolster springs, 3 a pendulum beam, 7 a bogie frame, 9 axle springs, 10 an axle, 13 an actuator for tilting the body, 20 a body-tilt system (roller type), G the center of gravity of the body, O0 the center of tilting of the body, O1 the center of axle springs and O2 the center of bolster springs.
  • a railway car equipped with a roller-type body-tilt system comprises a car body 1, bolster springs 2, a pendulum beam 3, a bogie frame 7, axle springs 9, an axle 10 and a body-tilt system (roller type) 20.
  • the body 1 is tilted around the center of tilting O0 thereof in obedience to the centrifugal force which may act to the center of gravity G thereof in a curve.
  • an active body-tilt control system has recently come into practical use, in which controlled body-tilting force is applied to the body 1 in addition to the centrifugal force acting to the center of gravity of the body 1, through a tilting actuator 13 such as an air cylinder between the pendulum beam 3 and the bogie frame 7 in order to improve riding comfort by swiftly (without delay) and gradually tilting the body 1 on transition curves provided entrances and exits of curves.
  • a tilting actuator 13 such as an air cylinder between the pendulum beam 3 and the bogie frame 7 in order to improve riding comfort by swiftly (without delay) and gradually tilting the body 1 on transition curves provided entrances and exits of curves.
  • the height of center of tilting O0 is set as high as possible, for example, at 2,275mm to 2,300mm above rail running surface, and the height of center of gravity is set as low as possible at 1,300mm to 1,500mm above rail running surface, thereby enlarging a momentum force around the center of tilting produced by the centrifugal force acting to the center of gravity G, wherein the distance between the center of tilting O0 and the center of gravity G is the momentum arm length.
  • the height of center of bolster springs O2 is generally set at 900mm to 1,000mm above rail running surface from the view point of body arrangement.
  • cars equipped with body-tilt systems in service in Japan have been generally so designed that the center of tilting is arranged as high as possible, the center of gravity is arranged as low as possible and bolster springs are disposed under the bogie frame as shown in Fig. 8 in order to enable natural pendulum and from the view point of body arrangement.
  • the bogie equipped with a body-tilt system for a railway car comprises: a wheelset including a wheel, an axle and an axle box; a bogie frame supported on said wheelset; a support pedestal standing upwardly from said bogie frame to a position adjacent to a roof of the car body; a tilting member which is disposed on an upper position of said pedestal and pendulates around a center of tilting in a lower portion of the car body; an actuator with a controller therefor for tilting the car body disposed between said support pedestal and said tilting member; and an elastic suspension means such as a bolster spring provided between said tilting member and the car body.
  • a bogie equipped with a body-tilt system comprises: a wheel set of a railway car; a bogie frame supported on said wheel set through an axle spring; a body suspension system composed of an air-spring and the like for suspending a car body, the body suspension system suspended at a high position close to a body roof; a body-tilt system of bearing guide type, roller type or link type and the like for tilting the car body toward centers of curves when the car going around curves; a body-tilt control system composed of a hydraulic or air cylinder and the like for controlling body tilting; and a support pedestal fixed on said bogie frame for suspending said body suspension system and body-tilt system at a high position close to the body roof, wherein, the curvature of the bearing guide or roller type guide or a construction of a link in the link type is arranged to position the center of tilting below the center of gravity of the car body and at around floor level of the body, when the body tilts toward the center of the center of the
  • a bogie equipped with a body-tilt system comprises: a wheel set of a railway car; a bogie frame supported on said wheel set through an axle spring; a body suspension system composed of an air-spring and the like for suspending a car body, the body suspension system suspended at a high position close to a body roof; a body-tilt system of bearing guide type, roller type or link type and the like for tilting the car body toward centers of curves when the car going around curves; a body-tilt control system composed of a hydraulic or air cylinder and the like for controlling body tilting; and a support pedestal fixed on said bogie frame for suspending said body suspension system and body-tilt system at a high position close to the body roof, wherein, the curvature of the bearing guide or roller type guide or a construction of a link in the link type is arranged to position the center of tilting below the center of gravity of the car body and at around floor level of the body, when the body tilts toward the center of the center of the
  • Fig. 1 is a schematic diagram illustrating height relations between the center of gravity, the center of tilting and the center of bolster springs in a car equipped with a body-tilt system.
  • G denotes the center of gravity
  • O0 denotes the center of tilting
  • O1 denotes center of axle springs
  • O2 denotes center of bolster springs.
  • the bogie of the present invention utilizes the following two tilting suspension mechanisms:
  • a car body 1 illustrated as a hatched portion is suspended by a pendulum beam 3 through bolster springs 2 composed of a relatively soft spring such as an air spring.
  • the pendulum beam 3 is disposed at an upper portion of a car which is close to a body roof 1 and swings in an arc with radius R around the center of tilting O2 which is positioned at a lower position of the car.
  • the lower ridge of pendulum beam 3 is formed into an arc and is put tiltablely on a roller-type body-tilt system 20, which may be a bearing guide type, attached to an upper portion of a support pedestal 5.
  • a pedestal 5 is a structure including a pair of left and right columns standing on the bogie frame 7. An upper end of the columns of the pedestal 5 extends nearly to roof of the body 1 and upper ends of the columns are connected to each other with a tie beam 6.
  • the pendulum beam 3 is actuated relative to the pedestal 5 by a body-tilt control cylinder 13, which may be an oil or an air cylinder.
  • a base portion of the body-tilt control cylinder 13 is fixed to the pedestal 5 and an end of the cylinder rod is fixed to the pendulum beam 3. Accordingly, when the cylinder 13 rod extends, the pendulum beam 3 moves right, and when the rod of the cylinder 13 collapses the pendulum beam 3 moves left.
  • the bogie frame 7 is suspended on an axle box 22 through axle springs 9.
  • the axle springs 9 are composed of relatively hard coil springs or rubber.
  • Axle boxes 22 are supported on the axle 26 and wheels 24. Wheels 24, axle 26, axle box 22 and so on form a wheelset.
  • the rod of the body-tilt control cylinder 13 is contracted and the pendulum beam 3 is moved (tilted) to the left.
  • the body 1 supported by the pendulum beam 3 is also tilted around the center of tilting O0 to the left by angle ⁇ .
  • the center of gravity G of the body 1 has moved to G' by a distance S left from the center of gravity G.
  • FIG. 12 another body tilting mechanism utilizing expansion and contraction of bolster springs for the bogie equipped with a body-tilt system for a railway car in Fig. 20 will be described.
  • no active pendulum works to tilt the body.
  • centrifugal force toward right is applied to the car.
  • this centrifugal force is canceled by a moment produced by differential reaction forces of bolster springs 2 which support the body 1 and by oblique component of gravity produced by tilting of the body 1 due to an unequal contraction or expansion in left and right bolster springs 2.
  • the body 1 is swung to the right around a point O3, which is at approximately the center of the both bolster springs 2, and the body 1 tilts left.
  • the bogie equipped with a body-tilt system for a railway car utilizes both two body tilting mechanisms or selectively activates one of them.
  • body-tilting by pendulum mechanism is mainly used and bolster spring tilting is somewhat additional.
  • the pendulum mechanism is activated.
  • This MODE is the most normal and ,in this MODE, only the pendulum mechanism is activated with bolster spring tilting mechanism locked.
  • a height controlling device for bolster springs is provided and the height of bolster springs is maintained constant at a predetermined value.
  • the height of air springs is constantly measured and when the height deviates from the standard height, air is supplied to or discharged from the air spring to maintain the predetermined height of the air spring.
  • control delay and control dead band causes the bolster spring to tilt the car body. As a result, this tilting generally gives slight additional body tilt angle whereby reducing lateral stationary acceleration and improving passengers' riding comfort.
  • the activation of tilting mechanism with bolster springs may be realized by not activating the spring height adjusting system for the air springs or interconnecting air chambers of right and left air springs through an interconnecting tube.
  • 1 denotes a car body, 2 bolster springs (air springs), 3 a pendulum beam, 4 a bearing-type body-tilt system, 5 a support pedestal, 6 a tie beam of the support pedestal, 7 a bogie frame, 8 an axle box suspension, 9 axle springs, 10 an axle, 11 a pass way between car bodies, 12 a yaw damper, 13 an actuator for body tilting, 14 an actuator for holding back body tilt, 15 a vehicle gauge, 16 a bearing guide block, 17 a bearing guide rail, 18 bearing guide balls, 19 a bearing guide seal, G the center of gravity of the car body, O1 the center of axle springs, O2 the center of bolster springs and R radius of curvature.
  • Fundamental concept of the bogie equipped with a body-tilt system for a railway car of this embodiment is to arrange the body-tilt system for suspending the bolster springs (air springs) 2 at a position as high as possible, at the same time to dispose the center of tilting O0 still below the center of gravity of the car body and approximately as low as the car body floor.
  • the bolster springs (air spring) 2 are suspended at a high position close to the roof of the car body 1 as illustrated in Figs. 2 to 4.
  • the pendulum beam 3 and the body-tilt system 4 (bearing guide type) are also suspended at a high position similar to bolster spring 2 as shown in Figs. 2 to 4, since it is difficult to set the center of tilting O0 at a position with the same height as the body floor when the design is ruled by the prior art bogie equipped with a body-tilt system for a railway car in which body-tilt system is suspended between a bogie and a car body.
  • the body suspension system such as the air springs 2, the pendulum beam 3 and the bearing-type body-tilt system 4 are provided in two sets on one bogie as shown in Fig. 2 such that they may support and tilt the car bodies of front and rear cars independently.
  • the air spring 2 and others are supported by the support pedestal 5 standing on the bogie frame 7 as shown in Figs. 2 to 4.
  • Right and left columns of the pedestal 5 are tied to each other with a tie beam 6 as shown in Fig. 6 to increase strength of the pedestal 5.
  • the body-tilt system 4 adopts a bearing guide type system which is compact and light and easily arranged for suspension at a high position. Details of the bearing guide which is used in the bearing guide type body-tilt system is shown in Fig.5. Several number of grooves 17a are formed on a bearing guide rail 17 which partly constitute a body-tilt system guide and has a radius of curvature R. These grooves 17a engage a row of balls 18 which circulate within bearing guide block 16 and bearing guide block 16 and rail 17 relatively moves in an arc having an identical center with the rail 17 and loads may be transferred between the block 16 and rail 17.
  • a stopper bracket 3a provided in the center of the pendulum beam 3 is sandwiched from right and left by body-tilt hold-back actuators 14 which is suspended on the tie beam 6 of the support pedestal 5, and the actuator 14 hold back the car body 1 to a neutral position, thereby preventing body 1 from falling into an inverted pendulum state and inclining to one side (left or right) in case that body tilt control is ceased or fails.
  • the present invention may improve running performance by preventing decrease in inside rail wheel load and may enhance riding comfort by depressing lateral movement of body floor during body tilting operation by greatly changing the structure of the body tilt system and the body suspension system compared with the conventional pendulum train by disposing the center of tilting O0 below the center of gravity of the car body and approximately as low as the car body floor, or by suspending the bolster springs of the body suspension system at a high position close to the body roof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
EP19950107628 1994-05-20 1995-05-18 Ein mit einem Wagenkasten-Neigungssystem ausgerüstetes Drehgestell für ein Eisenbahnfahrzeug Expired - Lifetime EP0683081B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP130906/94 1994-05-20
JP13090694 1994-05-20

Publications (2)

Publication Number Publication Date
EP0683081A1 true EP0683081A1 (de) 1995-11-22
EP0683081B1 EP0683081B1 (de) 1999-01-13

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ID=15045500

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EP19950107628 Expired - Lifetime EP0683081B1 (de) 1994-05-20 1995-05-18 Ein mit einem Wagenkasten-Neigungssystem ausgerüstetes Drehgestell für ein Eisenbahnfahrzeug

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EP (1) EP0683081B1 (de)
DE (1) DE69507192T2 (de)
ES (1) ES2129702T3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808758A1 (de) * 1996-05-22 1997-11-26 Gec Alsthom Transport Sa Neigungsvorrichtung für Gelenkfahrzeuge,Zug bestehend aus Fahrzeugen und Fahrzeuge mit solch einer Vorrichtung
EP0987161A2 (de) 1998-09-16 2000-03-22 ALSTOM LHB GmbH Einrichtung zur Neigung eines über eine Federung auf einem Fahrwerk abgestützten Wagenkastens eines Schienenfahrzeuges um eine Fahrzeuglängsachse, die eine Wankstütze umfasst
WO2004080779A1 (en) * 2003-03-14 2004-09-23 Korea Railroad Research Institute Tilting body of high-speed train
CN102765395A (zh) * 2011-05-05 2012-11-07 同济大学 一种立体有轨电车
EP3012172A4 (de) * 2013-06-19 2017-03-08 Nippon Steel & Sumitomo Metal Corporation Schienenfahrzeugwagen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000125A1 (de) 2010-01-19 2011-07-21 Claas, Benedikt, 37154 Aufhängevorrichtung für einen Eisenbahnwaggon

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB525858A (en) * 1938-03-07 1940-09-05 Cortlandt Taylor Hill Suspension system for vehicles
US2954746A (en) * 1956-01-10 1960-10-04 Chesapeake & Ohio Railway Radially guided, single axle, above center of gravity suspension for articulated trains

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB525858A (en) * 1938-03-07 1940-09-05 Cortlandt Taylor Hill Suspension system for vehicles
US2954746A (en) * 1956-01-10 1960-10-04 Chesapeake & Ohio Railway Radially guided, single axle, above center of gravity suspension for articulated trains

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808758A1 (de) * 1996-05-22 1997-11-26 Gec Alsthom Transport Sa Neigungsvorrichtung für Gelenkfahrzeuge,Zug bestehend aus Fahrzeugen und Fahrzeuge mit solch einer Vorrichtung
FR2748979A1 (fr) * 1996-05-22 1997-11-28 Gec Alsthom Transport Sa Dispositif de pendulation de vehicules articules, rame de vehicules et vehicule comprenant un tel dispositif
US5921185A (en) * 1996-05-22 1999-07-13 Gec Alsthom Transport Sa Body-tilt system for articulated vehicles, a vehicle including such a system, and a set of such vehicles
EP0987161A2 (de) 1998-09-16 2000-03-22 ALSTOM LHB GmbH Einrichtung zur Neigung eines über eine Federung auf einem Fahrwerk abgestützten Wagenkastens eines Schienenfahrzeuges um eine Fahrzeuglängsachse, die eine Wankstütze umfasst
WO2004080779A1 (en) * 2003-03-14 2004-09-23 Korea Railroad Research Institute Tilting body of high-speed train
CN102765395A (zh) * 2011-05-05 2012-11-07 同济大学 一种立体有轨电车
EP3012172A4 (de) * 2013-06-19 2017-03-08 Nippon Steel & Sumitomo Metal Corporation Schienenfahrzeugwagen

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Publication number Publication date
ES2129702T3 (es) 1999-06-16
DE69507192D1 (de) 1999-02-25
EP0683081B1 (de) 1999-01-13
DE69507192T2 (de) 1999-07-15

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