EP2184214A1 - Wagon plate-forme autodirecteur - Google Patents

Wagon plate-forme autodirecteur Download PDF

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Publication number
EP2184214A1
EP2184214A1 EP08791812A EP08791812A EP2184214A1 EP 2184214 A1 EP2184214 A1 EP 2184214A1 EP 08791812 A EP08791812 A EP 08791812A EP 08791812 A EP08791812 A EP 08791812A EP 2184214 A1 EP2184214 A1 EP 2184214A1
Authority
EP
European Patent Office
Prior art keywords
main frame
steering
sub frame
self
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.)
Granted
Application number
EP08791812A
Other languages
German (de)
English (en)
Other versions
EP2184214A4 (fr
EP2184214B1 (fr
Inventor
Yoshihiro Suda
Wenjun Wang
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.)
University of Tokyo NUC
Original Assignee
University of Tokyo NUC
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 University of Tokyo NUC filed Critical University of Tokyo NUC
Publication of EP2184214A1 publication Critical patent/EP2184214A1/fr
Publication of EP2184214A4 publication Critical patent/EP2184214A4/fr
Application granted granted Critical
Publication of EP2184214B1 publication Critical patent/EP2184214B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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.
  • 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 and a sub frame, wherein right and left drive wheels are rotatably supported on the main frame, the sub frame includes right and left swing arms whose proximal end portions are supported on the main frame 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.
  • 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. Particularly, by employing a monocycle independent type wheel for all the wheels including the drive wheels, no axle is extended over the width direction of a vehicle. Thus, 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.
  • 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.
  • 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)
EP08791812.4A 2007-07-30 2008-07-29 Wagon plate-forme autodirecteur Not-in-force EP2184214B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007196987 2007-07-30
PCT/JP2008/063577 WO2009017114A1 (fr) 2007-07-30 2008-07-29 Wagon plate-forme autodirecteur

Publications (3)

Publication Number Publication Date
EP2184214A1 true EP2184214A1 (fr) 2010-05-12
EP2184214A4 EP2184214A4 (fr) 2013-01-02
EP2184214B1 EP2184214B1 (fr) 2017-04-05

Family

ID=40304344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08791812.4A Not-in-force EP2184214B1 (fr) 2007-07-30 2008-07-29 Wagon plate-forme autodirecteur

Country Status (3)

Country Link
EP (1) EP2184214B1 (fr)
JP (1) JP5311414B2 (fr)
WO (1) WO2009017114A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
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
IT202200004646A1 (it) * 2022-03-10 2023-09-10 Aar Ingegneria Di Ferrario Roberto & C S A S Carrello ferrotranviario migliorato e veicolo ferrotranviario provvisto di tale carrello

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (5)

* Cited by examiner, † Cited by third party
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
EP0348378A1 (fr) * 1988-06-22 1989-12-27 S.A. Constructions Ferroviaires Et Metalliques Dispositif articulé de guidage et de sustentation d'un véhicule ferroviaire
EP0658465A1 (fr) * 1993-12-15 1995-06-21 ABBPATENT GmbH Bogie auto-directeur à trois essieux pour un véhicule ferroviaire
EP1652746A1 (fr) * 2003-07-16 2006-05-03 Yoshihiro Suda Essieu a autoguidage et wagon l'utilisant

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
JP5200242B2 (ja) * 2005-01-17 2013-06-05 国立大学法人 東京大学 自己操舵台車

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
EP0348378A1 (fr) * 1988-06-22 1989-12-27 S.A. Constructions Ferroviaires Et Metalliques Dispositif articulé de guidage et de sustentation d'un véhicule ferroviaire
EP0658465A1 (fr) * 1993-12-15 1995-06-21 ABBPATENT GmbH Bogie auto-directeur à trois essieux pour un véhicule ferroviaire
EP1652746A1 (fr) * 2003-07-16 2006-05-03 Yoshihiro Suda Essieu a autoguidage et wagon l'utilisant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009017114A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
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
IT202200004646A1 (it) * 2022-03-10 2023-09-10 Aar Ingegneria Di Ferrario Roberto & C S A S Carrello ferrotranviario migliorato e veicolo ferrotranviario provvisto di tale carrello
EP4242085A1 (fr) * 2022-03-10 2023-09-13 AAR Ingegneria di Ferrario Roberto & C. S.a.s. Bogie ferroviaire perfectionné et véhicule ferroviaire équipé d'un tel bogie

Also Published As

Publication number Publication date
JP5311414B2 (ja) 2013-10-09
JPWO2009017114A1 (ja) 2010-10-21
EP2184214A4 (fr) 2013-01-02
WO2009017114A1 (fr) 2009-02-05
EP2184214B1 (fr) 2017-04-05

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