EP2551169A1 - Schienenfahrzeug mit selbstlenkendem Fahrgestell - Google Patents

Schienenfahrzeug mit selbstlenkendem Fahrgestell Download PDF

Info

Publication number: EP2551169A1
Authority: EP; European Patent Office
Prior art keywords: wheel unit; running gear; rail vehicle; gear frame; vehicle according
Prior art date: 2011-07-28
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

EP11175869A

Other languages

English (en)

French (fr)

Other versions

EP2551169B1 (de

Inventor

Eckhard Gieseler

Kartsen Kießling

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.)

Alstom Transportation Germany GmbH

Original Assignee

Bombardier Transportation GmbH

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.)

2011-07-28

Filing date

2011-07-28

Publication date

2013-01-30

2011-07-28 Application filed by Bombardier Transportation GmbH filed Critical Bombardier Transportation GmbH

2011-07-28 Priority to ES11175869.4T priority Critical patent/ES2478279T3/es

2011-07-28 Priority to EP20110175869 priority patent/EP2551169B1/de

2013-01-30 Publication of EP2551169A1 publication Critical patent/EP2551169A1/de

2014-04-16 Application granted granted Critical

2014-04-16 Publication of EP2551169B1 publication Critical patent/EP2551169B1/de

Status Not-in-force legal-status Critical Current

2031-07-28 Anticipated expiration legal-status Critical

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
- 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
- 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

Definitions

the present invention relates to a rail vehicle, in particular for high-speed travel, comprising a wagon body supported on at least one running gear said wagon body having a nominal load and defining a longitudinal direction, a transverse direction and a height direction.
the running gear comprises a wheel unit and a running gear frame supported on the wheel unit via at least one spring device.
the wheel unit defines a wheel unit axis and comprises two wheel unit bearings spaced in the transverse direction. Each wheel unit bearing is connected to the running gear frame via a lever pivotably connected to the running gear frame and the wheel unit bearing.
the levers under the nominal load of the wagon body, are arranged such that a rolling motion of the running gear frame occurring about the longitudinal direction when traveling through a curved track section generates an alteration of an inclination of the lever with respect to the longitudinal direction causing a steering motion of the wheel unit about said height direction providing at least partially curve radial adjustment of the wheel unit.
the present invention further relates to a running gear for such a rail vehicle.
this known configuration has the disadvantage that it provides comparatively poor stability properties in terms of the overall guidance of the respective wheel set which are essential for high-speed operation.
special measures have to be taken to avoid pitching vibration of the wheel set bearing unit (i.e. rotational vibration about the transverse direction).
Such a configuration does not only increase the effort for achieving good running stability it typically also has the disadvantage that a plurality of components such as dampers etc. is required to achieve this goal. This is particularly disadvantageous considering the fact that, in running gears of modern rail vehicles, typically, there is comparatively few space available for integrating such components.
the present invention is based on the technical teaching that simple improvement of the running stability at comparatively low effort may be achieved if the levers providing the self steering functionality are formed as wings (e.g. swing- or swivel-arm-like elements) receiving or integrating the wheel unit bearing.
This functional integration of both the self steering functionality as well as the wheel unit guiding functionality reduces the number of parts to be used and, hence, the overall effort for achieving proper running stability. Furthermore, the consumption of building space is reduced thereby relaxing the requirements for integrating all necessary components into the running gear.
the present invention may be used in a particularly beneficial way in the context of high-speed rail vehicles.
the beneficial effects of the present invention may also be useful in vehicles having nominal operating speeds which are (even considerably) lower.
the self steering effect i.e. the curve radial adjustment of the wheel unit (caused by the rolling motion of the components supported on the wheel unit when negotiating a curve)
the geometric design and arrangement of the self steering wings is selected such that the optimum steering effect (i.e. the optimum steering angle) is obtained in curves having a high radius of curvature.
the geometric design and arrangement of the self steering wings is selected such that the optimum steering effect (i.e. the optimum steering angle) is obtained in curves having a low radius of curvature.
the present invention relates to a rail vehicle, in particular for high-speed travel, comprising a wagon body supported on at least one running gear said wagon body having a nominal load and defining a longitudinal direction, a transverse direction and a height direction.
the running gear comprises a wheel unit and a running gear frame supported on the wheel unit via at least one spring device.
the wheel unit defines a wheel unit axis and comprises two wheel unit bearings spaced in the transverse direction. Each wheel unit bearing is connected to the running gear frame via a lever pivotably connected to the running gear frame and the wheel unit bearing.
levers under the nominal load of the wagon body, are arranged such that a rolling motion of the running gear frame occurring about the longitudinal direction when traveling through a curved track section generates an alteration of an inclination of the lever with respect to the longitudinal direction causing a steering motion of the wheel unit about said height direction providing at least partially curve radial adjustment of the wheel unit.
Each of the levers is formed as a wing element pivotably connected to the running gear frame and providing a receptacle receiving one of the wheel unit bearings.
each of the wing elements is connected to the running gear frame to be pivotable about a pivot point, the wing elements being arranged such that, under the nominal load of the wagon body on a straight level track, a plane defined by the pivot point and the wheel unit axis is inclined with respect to the longitudinal direction.
a modification of the angle of inclination provides the desired steering motion.
the initial angle of inclination of this plane may have any suitable value. This initial value, in particular, may depend on the maximum steering action to be achieved.
the plane defined by the pivot point and the wheel unit axis, under the nominal load of the wagon body on a straight level track is inclined with respect to the longitudinal direction by an initial angle of inclination, the initial angle of inclination being less than 25°, preferably ranging from 4° to 20°, more preferably ranging from 5° to 17°. By this means particularly good self steering properties may be achieved.
the initial angle of inclination is preferably selected to range from 4° to 8°
a medium-speed rail vehicle in particular traveling at nominal operating speeds between 120 km/h and 180 km/h
the initial angle of inclination is preferably selected to range from 8° to 12°
the initial angle of inclination is preferably selected to range from 12° to 17°.
the present invention may be used in the context of any type of running gear. Particularly good results may be achieved in running gears having two or more wheel units. It will be appreciated that, a wheel unit in the sense of the present invention may be, for example, a wheel set or a wheel pair as well as units formed by two individual uncoupled wheels.
the wheel unit is a first wheel unit and the running gear comprises a second wheel unit, the wing elements each being connected to the running gear frame to be pivotable about a pivot point.
the wing elements are arranged such that the rolling motion of the running gear frame, at a radially outer side of the curved track section, increases a longitudinal distance between the first wheel unit and the second wheel unit.
the wing elements are arranged such that the rolling motion of the running gear frame, at a radially inner side of the curved track section, decreases a longitudinal distance between the first wheel unit and the second wheel unit. In either case, by this means, good steering properties are achieved.
the extent of the respective longitudinal shift between the two wheel units may be selected as a function of the steering angle to be achieved for the respective vehicle.
the first wheel unit at a center of the wheel unit bearing, defines a first axis point on a first wheel unit axis and the second wheel unit, and a center of a wheel unit bearing, defines a second axis point on a second wheel unit axis, the first axis point and the second axis point, in a static condition under the nominal load of the wagon body on a straight level track, have an initial longitudinal distance along the longitudinal direction.
the wing elements are preferably arranged such that the rolling motion of the running gear frame, at the radially outer side of the curved track section, at most generates a maximum increase in the longitudinal distance between the first axis point and the second axis point, the maximum increase ranging from 0.05% to 2%, preferably from 0.1 % to 1%, more preferably ranging from 0.2% to 0.5%, of the initial longitudinal distance.
the maximum increase is adapted to fit the respective radius of curvature of the curves where an optimum curve radial adjustment is to be achieved.
the maximum increase is required than in low-speed vehicles tuned to achieve an optimum curve radial adjustment in curves having a low radius of curvature.
the wing element may be of any suitable design. In particular, it may be made of the plurality of separate components assembled to provide the wing element. However, with particularly robust embodiment of the present invention, the wing element is a monolithic component.
the wing element may be manufactured using any suitable manufacturing technique. Again, for example, it may be assembled using any suitable assembling technique. For example, it may be a welded component. Preferably, the wing element is a cast component and/or a forged component, again providing a very robust arrangement.
the wing element integrates further functions to increase the degree of functional integration and to further reduce the building space required within the running gear.
the wing element forms a spring interface section for a spring device, in particular, a primary spring device, supporting the running gear frame.
the spring interface may be located at any suitable location.
the spring interface section is located between the wheel unit bearing and the running gear frame in the height direction.
the spring interface section may have any suitable shape.
the spring interface section is a substantially planar surface of the wing element such that a very simple configuration is achieved.
a further increase in the degree of functional integration may be achieved if the wing element, in addition or as alternative, forms a damper interface section for a damper device acting between the running gear frame and the wheel unit.
the damper interface section may be placed at any suitable location.
the damper interface section is located at an end section of the wing element opposite to an articulation of the wing element to the running gear frame.
the receptacle for the wheel unit bearing may only partially received the latter.
the wing element comprises a receptacle substantially completely receiving the wheel unit bearing.
the connection between the wing element and the wheel unit bearing may be achieved by any suitable means.
the wheel unit bearing is releasably connected to the wing element.
the present invention may be used in the context of any type of wheel unit such as wheel sets, wheel pairs or even units formed by two individual uncoupled wheels. Particularly simple configurations with good steering results and running properties are achieved if the wheel unit is a wheel set.
the rail vehicle according to the present invention is adapted to be used for high-speed operation at nominal operating speeds above 250 km/h, preferably above 300 km/h, more preferably above 350 km/h.
the rail vehicle is adapted to be used for low-speed operation at nominal operating speeds below 120 km/h, preferably between 60 km/h and 100 km/h.
the rail vehicle is adapted to be used for medium-speed operation at nominal operating speeds above 120 km/h, preferably between 120 km/h and 200 km/h.
the present invention furthermore relates to a running gear for a rail vehicle having the properties and features as outlined above, i.e., among others, comprising the wing elements as defined above.
a preferred embodiment of a rail vehicle 101 according to the present invention comprising a preferred embodiment of a running gear 102 according to the invention will now be described in greater detail.
the x-axis designates the longitudinal direction of the rail vehicle 101
the y-axis designates the transverse direction of the rail vehicle 101
the z-axis designates the height direction of the rail vehicle 101.
the vehicle 101 is a high-speed rail vehicle with a nominal operating speed above 250 km/h, more precisely above 300 km/h to 380 km/h.
the vehicle 101 comprises a wagon body 103 supported by a suspension system on the running gear 102.
the running gear 102 comprises two wheel units in the form of wheel sets 104 supporting a running gear frame 105 via a primary spring unit 106.
the running gear frame 105 supports the wagon body 103 via a secondary spring unit 107.
the running gear frame 105 is of generally H-shaped design with a middle section 105.1 located between the wheel sets 104.
the running gear 102 has a substantially symmetric configuration, a plane of symmetry (parallel to the yz plane) being indicated in Figure 1 by the contour 102.1.
Each wheel set 104 defines a wheel unit axis which, in the static situation under a nominal load of the wagon body 103, runs substantially parallel to the y axis. Furthermore, the ends of each wheel set 104 are rotatably received within a wheel set bearing 108. Each wheel set bearing, in turn, is substantially fully and releasably received within a receptacle formed in a wing element 109, first end of which is pivotably articulated to the running gear frame 105 at a pivot point 109.1.
a rolling motion of the running gear frame 105 occurring about the longitudinal direction (x axis) when traveling through a curved section of the track 110 generates an alteration of the inclination angle ⁇ of the wing element 109 with respect to the longitudinal direction causing a steering motion of the wheel unit 104 about the height direction (z axis) providing an at least partial curve radial adjustment of the wheel unit 104.
the wing elements 109 are arranged such that the rolling motion of the running gear frame 105, at a radially outer side of the curved section of the track 110, increases a longitudinal distance D between a first and second axis point 104.1 on the wheel set axes of the first and second wheel unit 104, the respective axis point 104.1 being located at center of the respective wheel set bearing 108.
the longitudinal distance herein designates the distance in the longitudinal direction (x axis) between these axis points 104.1 (only half of it, i.e. D/2, being shown in Figure 1 ).
wing elements 109 are arranged such that the rolling motion of the running gear frame, at a radially inner side of the curved section of the track 110, decreases the longitudinal distance D between the first and second wheel unit 104. In either case, by this means, good steering properties are achieved.
the maximum increase ⁇ D max in the longitudinal distance D ranges from 0.05% to 2%, preferably from 0.1 % to 1%, more preferably ranging from 0.2% to 0.5%, of the initial longitudinal distance.
the initial angle of inclination ⁇ 0 of the plane 111 may have any suitable value. This initial value, in particular, may depend on the maximum steering action to be achieved. In the present example, the initial angle of inclination ⁇ 0 is about 6°. By this means particularly good self steering properties may be achieved. It should be noted that Figure 1 , in this respect, is only used for illustrative purposes given the fact that the angle of inclination ⁇ 0 as shown in Figure 1 is less than 6°.
the initial angle of inclination ⁇ 0 may have any other suitable value as it has been outlined above.
the initial angle of inclination ⁇ 0 depends on the steering motion to be achieved for the respective vehicle.
the wing element 109 is a monolithic forged component, thereby achieving a very robust configuration. It will be appreciated however, that with other embodiments of the invention, any other desired design as outlined above may be chosen.
the wing element 109 integrates further functions to increase the degree of functional integration and to further reduce the building space required within the running gear 102. More precisely, the wing element 109 has a planar surface located above the receptacle of the with set bearing 108 forming a spring interface section 109.2 for the primary spring device 106 located between the wheel set bearing 108 and the running gear frame 105 in the height direction (z axis).
a further increase in the degree of functional integration is achieved in the embodiment shown by the fact that the wing element 109 in addition forms a damper interface section 109.3 for a damper device 112 acting between the running gear frame 105 and the wheel set 104.
the damper interface section 109.3 is located at an end section of the wing element 109 opposite to its pivot point 109.1 at the running gear frame 105.
the initial height distance between the pivot point 109.1 and the wheel unit axis i.e. the axis of rotation of the wheel unit 104 when rolling on the track
the initial height distance between the pivot point 109.1 and the wheel unit axis is about 50 mm.
other initial height distances may be chosen depending on the geometric boundary conditions of the running gear and the optimum steering angle to be achieved at a given running condition (typically selected as a function of the type of vehicle as outlined above).
initial height distances range from 100 mm to 140 mm, preferably from 110 mm to 130 mm, more preferably from 115 mm to 125 mm.
initial height distances typically range from 60 mm to 100 mm, preferably from 70 mm to 90 mm, more preferably from 75 mm to 85 mm.
high-speed vehicle initial height distances typically range from 30 mm to 70 mm, preferably from 40 mm to 60 mm, more preferably from 45 mm to 55 mm.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Rolling Contact Bearings (AREA)

EP20110175869 2011-07-28 2011-07-28 Schienenfahrzeug mit selbstlenkendem Fahrgestell Not-in-force EP2551169B1 (de)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
ES11175869.4T ES2478279T3 (es)	2011-07-28	2011-07-28	Vehículo ferroviario con tren de rodadura autodirector
EP20110175869 EP2551169B1 (de)	2011-07-28	2011-07-28	Schienenfahrzeug mit selbstlenkendem Fahrgestell

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP20110175869 EP2551169B1 (de)	2011-07-28	2011-07-28	Schienenfahrzeug mit selbstlenkendem Fahrgestell

Publications (2)

Publication Number	Publication Date
EP2551169A1 true EP2551169A1 (de)	2013-01-30
EP2551169B1 EP2551169B1 (de)	2014-04-16

Family

ID=44992519

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20110175869 Not-in-force EP2551169B1 (de)	2011-07-28	2011-07-28	Schienenfahrzeug mit selbstlenkendem Fahrgestell

Country Status (2)

Country	Link
EP (1)	EP2551169B1 (de)
ES (1)	ES2478279T3 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4658734A (en) *	1985-03-11	1987-04-21	Joseph Mroz	Independent suspension railway bogie
US4742779A (en) *	1981-08-07	1988-05-10	Creusot-Loire	Bogie with swiveling axles
EP0614793A1 (de) *	1993-03-09	1994-09-14	Herbert Scheffel	Schienenfahrzeugaufhängung
US5909711A (en) *	1995-08-23	1999-06-08	Slm Schweizerische Lokomotiv - Und Maschinenfabrik Ag	Bogie for a railway vehicle with adjustable wheel sets and railway vehicle with such a bogie
WO2002026542A1 (de) *	2000-09-27	2002-04-04	Daimlerchrysler Rail Systems Gmbh	Schienenfahrwerk mit radialer einstellung der radachsen
US20020098034A1 (en) *	2001-01-24	2002-07-25	Conaway Jerry Lee	Multi-degree of freedom elastomeric joint
EP1767430A1 (de) *	2005-09-22	2007-03-28	Bombardier Transportation GmbH	Drehgestell für ein Schienenfahrzeug

2011
- 2011-07-28 ES ES11175869.4T patent/ES2478279T3/es active Active
- 2011-07-28 EP EP20110175869 patent/EP2551169B1/de not_active Not-in-force

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4742779A (en) *	1981-08-07	1988-05-10	Creusot-Loire	Bogie with swiveling axles
US4658734A (en) *	1985-03-11	1987-04-21	Joseph Mroz	Independent suspension railway bogie
EP0614793A1 (de) *	1993-03-09	1994-09-14	Herbert Scheffel	Schienenfahrzeugaufhängung
US5909711A (en) *	1995-08-23	1999-06-08	Slm Schweizerische Lokomotiv - Und Maschinenfabrik Ag	Bogie for a railway vehicle with adjustable wheel sets and railway vehicle with such a bogie
WO2002026542A1 (de) *	2000-09-27	2002-04-04	Daimlerchrysler Rail Systems Gmbh	Schienenfahrwerk mit radialer einstellung der radachsen
DE10047737A1 (de)	2000-09-27	2002-04-11	Bombardier Transp Gmbh	Schienenfahrgerät mit einem Lastträger
US20020098034A1 (en) *	2001-01-24	2002-07-25	Conaway Jerry Lee	Multi-degree of freedom elastomeric joint
EP1767430A1 (de) *	2005-09-22	2007-03-28	Bombardier Transportation GmbH	Drehgestell für ein Schienenfahrzeug

Also Published As

Publication number	Publication date
ES2478279T3 (es)	2014-07-21
EP2551169B1 (de)	2014-04-16

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EP0862529B1 (de)	2003-03-26	Linear einstellbares drehgestell
KR890001990B1 (ko)	1989-06-07	철도차량용 대차
FI81311B (fi)	1990-06-29	Boogi och raelsfordon.
EP2551169B1 (de)	2014-04-16	Schienenfahrzeug mit selbstlenkendem Fahrgestell
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JP5259999B2 (ja)	2013-08-07	高速鉄道車両用台車の軸箱支持装置
JPH01500259A (ja)	1989-02-02	レール車両用機械式制御装置
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EP3621865B1 (de)	2023-07-05	Fahrwerk für ein schienenfahrzeug und zugehöriges schienenfahrzeug
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CN102673598A (zh)	2012-09-19	轨道车辆的减重运行机构框架

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