EP2184214B1 - Fahrzeug mit selbstlenkendem aufbau - Google Patents
Fahrzeug mit selbstlenkendem aufbau Download PDFInfo
- Publication number
- EP2184214B1 EP2184214B1 EP08791812.4A EP08791812A EP2184214B1 EP 2184214 B1 EP2184214 B1 EP 2184214B1 EP 08791812 A EP08791812 A EP 08791812A EP 2184214 B1 EP2184214 B1 EP 2184214B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steering
- frame
- proximal end
- main frame
- sub frame
- 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.)
- Not-in-force
Links
Images
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
- B61F3/00—Types of bogies
- B61F3/16—Types of bogies with a separate axle for each wheel
-
- 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
- B61F5/32—Guides, e.g. plates, for axle-boxes
- B61F5/325—The guiding device including swinging arms or the like to ensure the parallelism of the axles
-
- 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
- B61F5/40—Bogies with side frames mounted for longitudinal relative movements
Definitions
- the present invention relates to a truck for supporting a railway vehicle, and more particularly, to a self steering truck having excellent sharp turning performance such as a truck for an LRT (light rail transit) vehicle.
- LRT light rail transit
- the turning performance is achieved by a self steering function based on the tread gradient of a wheel.
- the self steering function can be improved by freeing the yawing of a wheel axle.
- a self-excited vibration called hunting oscillation occurs, to thereby deteriorate the running stability.
- a monocycle independently-rotatable truck in which independently-rotatable wheel units (axle and wheel) are provided on the right and left sides of a bogie frame is preferably employed.
- Examples of the related art regarding the monocycle independently-rotatable truck include Patent Document 1, Patent Document 2, and Non-Patent Document 1.
- Patent Document 1 discloses a structure in which axle arms are coupled to the right and left sides of a truck frame having a square U shape respectively via two links, right and left wheels are rotatably supported on the right and left axle arms, and the right and left axle arms are coupled together via a link in the width direction. Also, Non-Patent Document 1 discloses a basic point regarding the monocycle independently-rotatable truck.
- Patent Document 2 it is proposed to solve a response delay of a wheel to a curve by arranging a steering assist actuator such as an electromagnetic damper based on the disclosures in Patent Document 1 and Non-Patent Document 1.
- Patent Document 3 proposes a single truck obtained by swingably coupling two truck frames together.
- a front-side truck and a rear-side truck are coupled together through a pin, and a wheel unit where right and left wheels are mounted on a single axle is provided in each of the trucks.
- EP 0 348 378 describes a truck for supporting a rail vehicle, the truck having two frame bars, each frame bar having a first portion on which is mounted a first wheel and a second portion on which is mounted a second wheel. Pivots between the first portion and second portion permit independent orientation of each wheel.
- Patent Documents 1 and 2 and Non-Patent Document 1 disclosing the truck clearly describes the relationship between a drive wheel and a steering wheel. Particularly, to allow a vehicle to smoothly run on a track with a very small radius of curvature such as a light rail transit vehicle, it is considered preferable that the drive wheel and the steering wheel be as close as possible to each other. However, there is no disclosure on the point.
- the truck disclosed in Patent Document 3 is based on the single axle truck where the right and left wheels are mounted on the single axle, the truck has limited turning performance, and is thus not suitable for the track of LRT or the like with a very small radius of curvature such as a light rail transit vehicle.
- a single truck in a self steering truck according to the present invention, includes a main frame having a rectangular frame shape in a plan view and a sub frame, wherein right and left drive wheels are rotatably supported on the main frame, the sub frame comprises right and left swing arms whose proximal end portions are supported on corners of the main frame having a rectangular shape in a swingable manner in a yawing direction and a link for coupling the arms, and independently-rotatable steering wheels having a self steering function are provided on the right and left swing arms, and a distance (L1) between a center of an axle of the drive wheel and the proximal end portion of the swing arm is set to be equal to a distance (L2) between a center of an axle of the steering wheel and the proximal end portion of the swing arm.
- the sub frame may be provided at only one of the front and rear of the main frame, it is preferable to provide the sub frame at each of the front and rear of the main frame in view of stability.
- the front and rear sub frames are coupled together via a link mechanism such that the steering wheels mounted on the front and rear sub frames are in opposite phase. Accordingly, the stability is improved and a higher response to a small radius of curvature is obtained.
- a basic shape of a link formed by one side of the main frame and the sub frame is a parallelogram where the length of the coupling link that constitutes the sub frame is equal to the length between the proximal end portions of the right and left swing arms.
- the radius of rotation of an inner wheel can be made smaller than the radius of rotation of an outer wheel during yawing. That is, an Ackerman steering mechanism can be formed.
- the Ackerman steering mechanism is a preferable structure for a curve with a very small radius of curvature.
- a damper for damping the swing of the sub frame, or an electromagnetic damper also having a function of actively controlling the swing of the sub frame may be provided between the main frame and the sub frame.
- the drive wheels and the steering wheels are provided in the single truck, and the steering wheels are mounted on the sub frame that is swingable relative to the main frame on which the drive wheels are mounted. Accordingly, the self steering truck having excellent turning performance can be obtained.
- the self steering truck is also preferable for a low floor type vehicle.
- Figure 1 is a plan view of a self steering truck according to the present invention.
- Figure 2 is a plan view for explaining the motion of the self steering truck shown in Figure 1 at the time of turning a curve.
- a main frame 1 having a rectangular frame shape in a plan view and sub frames 2 provided at the front and rear of the main frame 1 based on the running direction form the base structure of the self steering truck according to the present invention.
- Axles 4 and 4 of right and left drive wheels 3 and 3 are rotatably supported on the main frame 1 via axle boxes 5 and 5. The same drive torque is applied to the right and left drive wheels 3 and 3 by use of a series motor or a differential gear.
- a cylindrical tread is employed as the tread shape of the drive wheels 3 and 3.
- a conical or circular tread is preferably employed.
- the sub frame 2 includes right and left swing arms 6 and 6 whose proximal end portions are pivotably supported on the main frame 1 in a horizontal plane, and a coupling link 7 for coupling the distal end portions of the swing arms 6 and 6 together to constitute a link.
- the length of the coupling link 7 is set to be equal to the length between the proximal end portions of the swing arms 6 and 6.
- a parallelogram link is thereby formed between the sub frame 2 and the main frame 1.
- An axle 9 of a steering wheel 8 is rotatably supported on each of the swing arms 6 and 6 via an axle box 10.
- a distance L1 between the drive wheel 3 (the center of the axle 4) and the proximal end portion (a joint portion) of the swing arm 6 is set to be equal to a distance L2 between the steering wheel 8 (the center of the axle 9) and the proximal end portion of the swing arm 6.
- the drive wheel 3 travels on the same arc as the steering wheel 7.
- the setting is suitable for a relatively gentle curve where the radius of curvature of an outer rail R1 and the radius of curvature of an inner rail R2 can be considered equivalent to each other.
- Figure 3 is a plan view of a self steering truck according to another embodiment.
- Figure 4 is a plan view for explaining the motion of the self steering truck shown in Figure 3 at the time of turning a curve.
- the length of the coupling link 7 is set to be larger than the length between the proximal end portions of the swing arms 6 and 6, to thereby form a trapezoidal link, that is, an Ackerman steering mechanism between the sub frame 2 and the main frame 1.
- the Ackerman steering mechanism is a mechanism in which an inner wheel has a smaller radius of rotation than that of an outer wheel during yawing as shown in Figure 4 .
- the structure is thus preferable in a case where the curve has a very small radius of curvature since there is a large difference between the radii of curvature of the outer rail R1 and the inner rail R2.
- Figures 5(a) and 5(b) are plan views of a self steering truck according to another embodiment.
- an Ackerman steering link is employed as the structure of the sub frames 2 coupled to the front and rear of the main frame 1, the drive wheels are not provided in the main frame 1.
- Figure 6 is a plan view of a self steering truck according to another embodiment.
- a damper for damping the swing of the sub frame 2 is provided between the main frame 1 and the sub frame 2.
- a direct acting electromagnetic damper 11 or a rotating electromagnetic damper 12 may be employed as well as a normal damper that exerts a hydraulic or air damping force.
- the electromagnetic damper is applied as described above, the swing of the sub frame 2 is not only damped to stabilize the operation, but the swing of the sub frame can be also actively controlled in association with the curve of a track.
- Figures 7(a) and 7(b) are plan views of a self-steering truck according to another embodiment.
- the front end of the left-side swing arm 6 of the front sub frame 2 is coupled to the rear end of the right-side swing arm 6 of the rear sub frame 2 via a link mechanism 13 such that the steering wheel 8 of the front sub frame 2 is in opposite phase to the steering wheel 8 of the rear sub frame 2.
- the left-side swing arm 6 of the front sub frame 2 is formed into an L shape
- the right-side swing arm 6 of the rear sub frame 2 is formed into an L shape.
- a link mechanism 14 couples the L-shaped arms together such that the steering wheels are in opposite phase.
- Figure 8 is a plan view of a self steering truck according to another embodiment.
- the sub frame 2 is provided at only one of the front or rear ends of the main frame 1.
- the configuration is effective in a case where the vehicle is short and only one sub frame can be coupled thereto or in a case of a one-way operation.
- Figure 9 is a plan view of a self steering truck according to another embodiment.
- a single axle 4 is mounted on the main frame 1, and the drive wheels 3 and 3 are mounted on the both ends of the axle 4.
- the structure is disadvantageous to a low floor type, a mechanism for transmitting a drive force can be simplified.
- Figures 10(a) to 10(d) are plan views of a self-steering truck according to another embodiment.
- a flange for preventing derailment is not provided in the drive wheel 3. This is because the front and rear steering wheels have flanges and the drive wheel is thus not required to have a flange.
- the drive wheel 3 is made of rubber, or a rubber layer is formed on the surface of the drive wheel 3.
- the rubber drive wheel 3 is placed on a rail, so that the vehicle runs by a frictional force with the rail. Even when the drive wheel 3 is in contact with the rail as described above, a load applied to the rail can be considerably reduced and the drive force can be increased by employing the rubber drive wheel 3.
- the single rubber drive wheel 3 is arranged in the intermediate portion of the main frame 1 in the width direction.
- the vehicle runs by friction not with the rail but with a track surface.
- the rail works only for a steering operation and is thus subject to less wear. Therefore, the rail requires less maintenance.
- the rubber drive wheel 3 is arranged outside the main frame 1.
- a smaller load is applied to the rail as in the aforementioned type.
- the drive wheels 3 project to the right and left, the running stability is improved regardless of running on a straight track or a curved track.
- the configuration is effective especially when the vehicle has a narrow gauge.
- Figures 11(a) to 11(c) are enlarged side views illustrating an application example to a railway vehicle.
- a bolsterless air spring 15 is arranged between the vehicle and the self steering truck, and a mono link 16, a wing spring 17, or a guide member 18 are used as a method for supporting the axle box.
- the drive wheel may have a larger diameter, and the steering wheels may have smaller diameters while the diameters of the front and rear steering wheels are different from each other as shown in Figure 11(c) .
- the load share ratio of the drive wheel is made largest as shown in the drawings, so that the drive force of the drive wheel can be increased.
- Figures 12(a) to 12(d) are side views illustrating an application example to a railway vehicle.
- the self steering truck according to the present invention is applied to the front and rear of a single vehicle.
- the self steering truck according to the present invention is applied to a coupling portion between two vehicles.
- the self steering truck according to the present invention is applied to each of three coupled vehicles.
- the self steering truck according to the present invention is applied to vehicles on the both ends of three coupled vehicles excluding an intermediate vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Claims (7)
- Selbstlenkender Wagen zum Tragen eines Schienenfahrzeugs, der Wagen umfassend einen Hauptrahmen (1) mit einer rechteckigen Rahmenform in einer Draufsicht und einen Unterrahmen (2), wobei rechte und linke Antriebsräder (3) drehbar an dem Hauptrahmen (1) gelagert sind, wobei der Unterrahmen (2) rechte und linke Schwenkarme (6), deren proximalen Endabschnitte auf Ecken des Hauptrahmens (1) mit einer rechteckigen Form, auf eine schwenkbare Weise in einer Ziehrichtung, gestützt werden, und ein Glied (7) zum Koppeln der Arme (6) umfasst, und wobei unabhängig voneinander drehbare Lenkräder (8) mit einer Selbstlenkfunktion an den rechten und linken Schwenkarmen (6) vorgesehen sind, und wobei ein Abstand (L1) zwischen einer Mitte einer Achse (4) des Antriebsrads (3) und dem proximalen Endabschnitt des Schwenkarms (6) eingestellt ist, gleich zu sein zu einem Abstand (L2) zwischen einer Mitte einer Achse (9) des Lenkrades (8) und dem proximalen Endabschnitt des Schwenkarms (6).
- Selbstlenkender Wagen zum Tragen eines Schienenfahrzeugs, der Wagen umfassend einen Hauptrahmen (1) mit einer rechteckigen Rahmenform in einer Draufsicht und einen Unterrahmen (2), wobei ein Gummiantriebsrad (3) drehbar an dem Hauptrahmen (1) gelagert ist, wobei der Unterrahmen (2) rechte und linke Schwenkarme (6), deren proximalen Endabschnitte von dem Hauptrahmen (1) auf eine schwenkbare Weise in einer Ziehrichtung gestützt werden, und ein Glied (7) zum Koppeln der Arme (6) umfasst, und wobei unabhängig voneinander drehbare Lenkräder (8) mit einer Selbstlenkfunktion an den rechten und linken Schwenkarmen (6) vorgesehen sind, und wobei ein Abstand (L1) zwischen einer Mitte einer Achse (4) des Antriebsrads (3) und dem proximalen Endabschnitt des Schwenkarms (6) eingestellt ist, gleich zu sein zu einem Abstand (L2) zwischen einer Mitte einer Achse (9) des Lenkrades (8) und dem proximalen Endabschnitt des Schwenkarms (6).
- Selbstlenkender Wagen nach Anspruch 1 oder 2, wobei der Unterrahmen (2) am jeder von einer Vorderseite und einer Rückseite des Hauptrahmens (1) vorgesehen ist.
- Selbstlenkender Wagen nach Anspruch 3, wobei der vordere und der hintere Unterrahmen (2) miteinander verbunden sind über einen Gelenkmechanismus (7), sodass die Lenkräder (8), die auf dem vorderen und dem hinteren Unterrahmen (2) montiert sind, sich in entgegengesetzten Phasen befinden.
- Selbstlenkender Wagen nach Anspruch 1 oder 2, wobei eine Länge des Koppelgliedes (7), das den Unterrahmen (2) bildet, gleich einer Länge zwischen den proximalen Endabschnitten des rechten und linken Schwenkarms (6) ist, um dadurch ein Parallelogrammverbindung zu bilden.
- Selbstlenkender Wagen nach Anspruch 1 oder 2, wobei eine Länge des Koppelgliedes (7), das den Unterrahmen (2) bildet, größer als eine Länge zwischen den proximalen Endabschnitten des rechten und linken Schwenkarms (6) ist, um dadurch einen Ackerman-Lenkmechanismus zu bilden.
- Selbstlenkender Wagen nach einem der Ansprüche 1 bis 6, wobei ein Dämpfer (11, 12) zum Dämpfen des Schwingens des Unterrahmens (2) oder ein elektromagnetischer Dämpfer (11, 12), auch aufweisend eine Funktion des aktiven Steuerns des Schwingens des Unterrahmens (2), zwischen dem Hauptrahmen (1) und dem Unterrahmen (2) vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007196987 | 2007-07-30 | ||
PCT/JP2008/063577 WO2009017114A1 (ja) | 2007-07-30 | 2008-07-29 | 自己操舵台車 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2184214A1 EP2184214A1 (de) | 2010-05-12 |
EP2184214A4 EP2184214A4 (de) | 2013-01-02 |
EP2184214B1 true EP2184214B1 (de) | 2017-04-05 |
Family
ID=40304344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08791812.4A Not-in-force EP2184214B1 (de) | 2007-07-30 | 2008-07-29 | Fahrzeug mit selbstlenkendem aufbau |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2184214B1 (de) |
JP (1) | JP5311414B2 (de) |
WO (1) | WO2009017114A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101329001B1 (ko) | 2011-12-20 | 2013-11-12 | 한국철도기술연구원 | 고속 저상 독립차륜형 조향장치 |
RU2562659C1 (ru) * | 2014-03-18 | 2015-09-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Елецкий государственный университет им. И.А. Бунина" | Челюстная трёхосная тележка тепловоза |
KR101772606B1 (ko) * | 2015-11-05 | 2017-08-31 | 한국철도기술연구원 | 곡선구간 주행성능 향상을 위한 철도차량용 3축대차 구조 |
JP6624293B2 (ja) * | 2016-07-29 | 2019-12-25 | 日本製鉄株式会社 | 鉄道車両用台車、及びその台車を備えた鉄道車両 |
EP4242085A1 (de) * | 2022-03-10 | 2023-09-13 | AAR Ingegneria di Ferrario Roberto & C. S.a.s. | Verbessertes eisenbahndrehgestell und schienenfahrzeug mit einem solchen drehgestell |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR719436A (fr) * | 1931-07-02 | 1932-02-05 | Boggie pour véhicules sur rails | |
US3066617A (en) * | 1960-03-24 | 1962-12-04 | Sidney H Bingham | Light weight rapid transit truck |
ZA727978B (en) * | 1972-11-10 | 1974-07-31 | Inventions Dev Corp Sa | Improvements in railway suspensions |
JPS59230859A (ja) * | 1983-06-15 | 1984-12-25 | 株式会社日立製作所 | 鉄道車両用台車 |
JPS62285604A (ja) * | 1986-06-03 | 1987-12-11 | H S S T:Kk | リニアモ−タカ−の可撓式台車構造 |
BE1001811A3 (fr) * | 1988-06-22 | 1990-03-13 | Ferroviaires & Metall Constr | Dispositif articule de guidage et de sustentation d'un vehicule ferroviaire. |
JPH02293253A (ja) | 1989-05-08 | 1990-12-04 | Hitachi Ltd | ラジアル台車のかじ取り装置 |
GB2280160B (en) * | 1993-07-14 | 1998-04-29 | Tram Research Limited | Railway rolling stock |
EP0658465B1 (de) * | 1993-12-15 | 1998-02-25 | ABB Daimler-Benz Transportation (Technology) GmbH | Selbstlenkendes, dreiachsiges Laufgestell für ein Schienenfahrzeug |
JP3471157B2 (ja) * | 1996-02-27 | 2003-11-25 | 東芝トランスポートエンジニアリング株式会社 | 鉄道車両用3軸操舵台車 |
JP3524511B2 (ja) * | 2001-01-31 | 2004-05-10 | 川崎重工業株式会社 | 鉄道車両用一軸台車 |
EP1652746A4 (de) * | 2003-07-16 | 2008-11-26 | Toudai Tlo Ltd | Selbstlenkungsflachwagen und schienenfahrzeug, an dem dieser selbstlenkungsflachwagen angebracht ist |
WO2006075756A1 (ja) * | 2005-01-17 | 2006-07-20 | The University Of Tokyo | 自己操舵台車 |
-
2008
- 2008-07-29 JP JP2009525405A patent/JP5311414B2/ja not_active Expired - Fee Related
- 2008-07-29 WO PCT/JP2008/063577 patent/WO2009017114A1/ja active Application Filing
- 2008-07-29 EP EP08791812.4A patent/EP2184214B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
WO2009017114A1 (ja) | 2009-02-05 |
JP5311414B2 (ja) | 2013-10-09 |
JPWO2009017114A1 (ja) | 2010-10-21 |
EP2184214A4 (de) | 2013-01-02 |
EP2184214A1 (de) | 2010-05-12 |
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