EP1339594A1 - Radsatzlenker - Google Patents
RadsatzlenkerInfo
- Publication number
- EP1339594A1 EP1339594A1 EP01999503A EP01999503A EP1339594A1 EP 1339594 A1 EP1339594 A1 EP 1339594A1 EP 01999503 A EP01999503 A EP 01999503A EP 01999503 A EP01999503 A EP 01999503A EP 1339594 A1 EP1339594 A1 EP 1339594A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handlebar
- section
- longitudinal axis
- fibers
- cross
- 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
Links
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 25
- 239000000835 fiber Substances 0.000 claims description 21
- 239000003365 glass fiber Substances 0.000 claims description 7
- 230000008719 thickening Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 3
- 229920002994 synthetic fiber Polymers 0.000 abstract 2
- 238000010009 beating Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000007257 malfunction Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
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
- B61F5/26—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
Definitions
- the invention relates to a handlebar made of fiber-plastic composite for guiding a " wheel set in a chassis of a rail vehicle according to the preamble of claim 1.
- High-speed rail traffic places particularly high demands on the running gear of rail vehicles.
- the components of the wheelset guide of high-speed trains are subject to high loads. They have to guarantee the safe travel of the rail vehicle for several years every day and should function with little wear and maintenance.
- the decisive factor for driving safety and comfort is the articulation of the wheel sets on the chassis frame. Wheelset links in rail vehicle undercarriages serve to link the wheel sets to the undercarriage frame both in the direction of travel and at right angles to them.
- the dynamics of the train particularly require tightly tolerated handlebar stiffness.
- the vertical stiffness of a handlebar should be very low in order to have the least possible influence on the primary suspension. It must therefore be adjusted accordingly with regard to its spring rate.
- a primary requirement is the exact, permanent compliance with the required, defined transverse stiffness so that the desired dynamic properties of the train are maintained within narrow limits.
- the longitudinal rigidity must be as high as possible for high driving speeds. However, a certain degree of flexibility in the longitudinal direction is desirable for a low-wear journey so that the wheel sets can better adapt to the different radii of the two track curves when cornering, which reduces the wear of the wheels.
- the handlebars are made of an electrically non-conductive material or that they are not stored in a conductive manner on the wheelset.
- EP 0 363 573 A2 discloses a wheel set link with a fiber composite component for the bogie of a rail vehicle, which is designed in the manner of a leaf spring for guiding the wheelset axles.
- the handlebars are attached to end sections on the one hand on the wheelset bearing housing and on the other hand on the bogie frame in a positive and non-positive manner.
- the central section of the fiber composite component which extends along a horizontal longitudinal axis of the component, has a constant, flat cross section in the vertical direction in the manner of a leaf spring.
- the fiber composite component of the handlebar is so vertically flexible, but highly transverse and longitudinally rigid.
- This known wheel set handlebar does not have a rotational degree of freedom between the handlebar and the bearing housing, as a result of which the wheel bearing housing is subjected to undesirable bending loads, which in particular in the case of high-speed rail vehicles, assume great values.
- the invention is therefore based on the object of providing a handlebar of the type mentioned which has a degree of freedom of rotation between the handlebar and the housing of the wheel bearing.
- a handlebar according to the preamble of patent claim 1 in which the handlebar, preferably in the central section, has at least one integrated bending joint with a vertical bending axis.
- the handlebar according to the invention only has a single one. , such a flexible joint. This creates a rotational degree of freedom between the handlebar and wheel bearing housing without having to install an additional joint in a differential design.
- the flexible joint can - according to requirements - be attached to any position over the longitudinal extension of the handlebar.
- the design of the handlebar according to the invention which is provided as a one-piece fiber-plastic composite part, enables the rigidity of the wheel set handlebar to be specifically adjusted via the geometry.
- the wheel sets can be connected to the chassis frame with a defined stiffness that is reproducible within narrow tolerances and almost temperature-independent. This in turn allows the speed of travel to be increased with a high level of security and low Wheel wear.
- the handlebar can be designed in such a way that it can be regarded as operationally stable for the duration of the operating time of the rail vehicle and, unlike handlebars whose rotational degree of freedom is realized by a rubber bushing, is wear-free and does not have to be continuously maintained or even changed at regular intervals.
- glass fiber-plastic composite 'automatically achieves the desirable electrical insulation to avoid electrical damage to the roller bearings of the wheel sets.
- fiber-plastic composite has a significantly higher material damping, as a result of which the handlebar according to the invention largely prevents transmission of structure-borne noise from the wheelset into the chassis and thus into the vehicle body, and thus increases driving comfort.
- the central section of the handlebar has at least one section with a cross section tapering towards the bending joint.
- This increases the effect of the softness in the vertical direction.
- the cross-section can be tapered along the longitudinal axis of the link in accordance with the course of the bending moment by increasing the narrowing of the horizontal width. Additionally or alternatively, the vertical thickness of the cross section in the direction of the flexible joint can also be increasingly reduced.
- the flexible joint is arranged between two sections with cross sections tapering in opposite directions.
- the flexible joint is preferably placed in the middle of the handlebar.
- the handlebar is advantageously symmetrically deformed, both with vertical load transmission in the S shape and with horizontal transverse load in the V shape.
- the flexible joint is designed as a horizontal constriction in the cross section of the handlebar.
- the cross section of the link in the region of the flexible joint is at least partially flat in the horizontal transverse direction. This allows additional flexure of the extended in the vertical direction cross-sectional area to be added back to the horizontal constricted cross-section to the danger of buckling in the region of the joint when transmitting '
- Glass fiber-plastic composite with fibers running predominantly unidirectionally in the direction of the longitudinal axis of the handlebar is preferably provided as the material for the handlebar.
- This material for example with E-glass fibers, is particularly suitable because it offers very high fatigue strength with low rigidity.
- the orientation of the fiber course takes into account the different requirements for rigidity in the different spatial directions.
- the central section of the handlebar has shear-absorbing layers with fibers crossing in a horizontal plane at an angle of + 5 ° to ⁇ 60 ° to the longitudinal axis.
- the handlebar can also absorb high compressive forces acting in the longitudinal direction.
- the end sections of the handlebars have fibers that run predominantly unidirectionally in the direction of the longitudinal axis and the middle section predominantly intersect fibers in a vertical plane at an angle of ⁇ 5 ° to ⁇ 60 ° to the longitudinal axis. This measure also reinforces the central section of the handlebar, so that it has an increased vertical bending stiffness.
- Flexible joints larger than in other handlebar areas This allows the flexible joint to be used correspondingly smaller cross-section, for example constricted more in the horizontal transverse direction.
- At least one closed torsion tube made of fiber layers with fibers crossing at an angle " of ⁇ 5 ° to " ⁇ 60 ° to the longitudinal axis is arranged in the core of the handlebar; in addition, the handlebar has fibers running mainly in the direction of the longitudinal axis outside the core.
- the inclusion of a tube in the handlebar cross-section increases the torsional rigidity around the longitudinal axis of the handlebar in addition to the transverse and longitudinal stiffnesses and thus improves the load-bearing capacity and integrity of the wheelset handlebar as a whole.
- the core of the handlebar has high-strength R-glass fibers or S-glass fibers or high-strength or high-strength carbon fibers from one end section to the other.
- this measure strengthens the handlebar cross-section by replacing the glass fibers with high-strength or highly rigid fibers, particularly against longitudinal tensile or compressive forces.
- wedge-shaped thickenings are formed on the end sections.
- fastening loops are formed on the end sections.
- a double loop connection for example, is ideal for absorbing lateral forces for a torque-proof connection of the handlebar to the wheelset and chassis frame.
- FIG. 1 a handlebar according to the invention in its installation environment
- FIG. 2 shows an embodiment of a handlebar according to the invention in a perspective view
- FIG. 3 an end section of a handlebar according to the invention in another ⁇
- the undercarriage or bogie of a rail vehicle has according to FIG. 1 for guiding a wheel set on both sides of the undercarriage on two links 1 arranged one above the other, which are connected on the one hand to the frame 2 of the undercarriage and on the other hand to the housing 3 of the wheel bearing.
- the axles of the wheels 4 of the wheel set are mounted in the wheel bearings designed as roller bearings.
- the frame 2 is based on a
- a vibration damper 6 is arranged parallel to the primary spring 5, which together characterize the vertical spring movement of the frame 2 relative to the wheel set of the rail vehicle.
- the parallel arrangement of the links 1 has the advantage that an additional bending load on the primary suspension 5 is prevented.
- the handlebars 1 are clamped torque-proof at the ends. The clamping forces are applied via clamping rings 7 made of fiber composite material, which act on the ends of the two links 1 arranged one above the other.
- the handlebars 1 are clamped onto steel blocks 8 arranged centrally between them via screw connections 9 on the one hand on the housing 3 of the wheel bearing and on the other hand via a bracket 10 on the frame 2 of the chassis.
- the handlebar 1 has two end regions 11 and 11 ′ for connection to the wheel set and frame 2 of the chassis and a middle section 12 arranged between them.
- a bending joint 14 with a bending axis 15 extending in the vertical direction Z is arranged in the central section 12.
- the flexible joint 14 is designed as a horizontal constriction J 6 with a cross section flattened in the horizontal transverse direction Y. This creates in the area of the bending joint 14 the required bending softness around the bending axis 15 and at the same time a cross section extending in the XZ plane and sufficiently large for a high longitudinal rigidity of the link 1.
- the cross-sectional taper is achieved by a component thickness that decreases both in the Z direction and in the Y direction, in accordance with the bending moment curve that occurs during operation.
- At the end sections 1 1 and 11 'wedge-shaped thickenings 18 and 18' are formed, so that the torque-fixed clamping of the handlebar 1 is achieved not only by a clamping ring-related frictional connection, but also by a positive connection.
- two fastening loops 19 are formed on the end region 11 of the handlebar 1.
- This double loop connection is particularly suitable for absorbing transverse or lateral forces and the resulting bending moments.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Body Structure For Vehicles (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Reinforced Plastic Materials (AREA)
- Vehicle Body Suspensions (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Vending Machines For Individual Products (AREA)
- Moulding By Coating Moulds (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10060408 | 2000-12-05 | ||
| DE10060408A DE10060408A1 (de) | 2000-12-05 | 2000-12-05 | Radsatzlenker |
| PCT/EP2001/014059 WO2002046018A1 (de) | 2000-12-05 | 2001-12-01 | Radsatzlenker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1339594A1 true EP1339594A1 (de) | 2003-09-03 |
| EP1339594B1 EP1339594B1 (de) | 2004-10-06 |
Family
ID=7665862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01999503A Expired - Lifetime EP1339594B1 (de) | 2000-12-05 | 2001-12-01 | Radsatzlenker |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7077066B2 (de) |
| EP (1) | EP1339594B1 (de) |
| JP (1) | JP2004515405A (de) |
| AT (1) | ATE278587T1 (de) |
| CA (1) | CA2436254C (de) |
| DE (2) | DE10060408A1 (de) |
| DK (1) | DK1339594T3 (de) |
| ES (1) | ES2230397T3 (de) |
| PT (1) | PT1339594E (de) |
| WO (1) | WO2002046018A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008001989A1 (de) | 2008-05-27 | 2009-12-03 | Zf Friedrichshafen Ag | Verbundlenkerachse für ein Kraftfahrzeug |
| DE102013223687B4 (de) | 2013-11-20 | 2020-04-23 | Bayerische Motoren Werke Aktiengesellschaft | Einzelradaufhängung eines Fahrzeugs mit einer in Faserverbundwerkstoff ausgeführten Feder-Lenker-Struktur |
| DE102014103014A1 (de) * | 2014-03-06 | 2015-09-10 | Tobias KELLER | Feder-Lenker-Einrichtung |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376033A (en) * | 1966-05-02 | 1968-04-02 | Gen Motors Corp | Unitized composite spring construction |
| US3445911A (en) * | 1966-08-22 | 1969-05-27 | North American Rockwell | Method of making tapered spring leaf |
| DD98069A1 (de) * | 1972-07-05 | 1973-06-12 | ||
| JPS5369313A (en) * | 1976-12-01 | 1978-06-20 | Hitachi Ltd | Device for supporting axle box of railway train |
| DE3137542C2 (de) * | 1981-09-22 | 1986-10-02 | MAN Gutehoffnungshütte GmbH, 4200 Oberhausen | Radsatzlagerführung, insbesondere für Schienenfahrzeuge mit Drehgestellen |
| US4688778A (en) * | 1982-10-01 | 1987-08-25 | Isosport Verbundbauteile Ges.M.B.H. | Plastic leaf spring |
| US4575057A (en) * | 1983-12-27 | 1986-03-11 | Ford Motor Company | Filament wound composite material leaf spring |
| DE3924046C1 (de) * | 1989-07-21 | 1990-10-04 | Basf Ag, 6700 Ludwigshafen, De | |
| US5087503A (en) * | 1989-09-14 | 1992-02-11 | Pacific Coast Composites, Inc. | Composite constant stress beam with gradient fiber distribution |
| DE4207405C2 (de) * | 1992-03-09 | 1994-02-24 | Lothar Dr Lauck | Achslenker für Drehgestelle von Schienenfahrzeugen |
| US6811169B2 (en) * | 2001-04-23 | 2004-11-02 | Daimlerchrysler Corporation | Composite spring design that also performs the lower control arm function for a conventional or active suspension system |
-
2000
- 2000-12-05 DE DE10060408A patent/DE10060408A1/de not_active Withdrawn
-
2001
- 2001-12-01 DE DE50104041T patent/DE50104041D1/de not_active Expired - Lifetime
- 2001-12-01 EP EP01999503A patent/EP1339594B1/de not_active Expired - Lifetime
- 2001-12-01 CA CA2436254A patent/CA2436254C/en not_active Expired - Fee Related
- 2001-12-01 DK DK01999503T patent/DK1339594T3/da active
- 2001-12-01 PT PT01999503T patent/PT1339594E/pt unknown
- 2001-12-01 ES ES01999503T patent/ES2230397T3/es not_active Expired - Lifetime
- 2001-12-01 AT AT01999503T patent/ATE278587T1/de active
- 2001-12-01 WO PCT/EP2001/014059 patent/WO2002046018A1/de not_active Ceased
- 2001-12-01 JP JP2002547774A patent/JP2004515405A/ja active Pending
- 2001-12-01 US US10/433,298 patent/US7077066B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0246018A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US7077066B2 (en) | 2006-07-18 |
| CA2436254C (en) | 2010-07-06 |
| CA2436254A1 (en) | 2002-06-13 |
| PT1339594E (pt) | 2004-12-31 |
| DK1339594T3 (da) | 2005-01-31 |
| DE10060408A1 (de) | 2002-06-06 |
| WO2002046018A1 (de) | 2002-06-13 |
| ES2230397T3 (es) | 2005-05-01 |
| EP1339594B1 (de) | 2004-10-06 |
| ATE278587T1 (de) | 2004-10-15 |
| US20040099177A1 (en) | 2004-05-27 |
| JP2004515405A (ja) | 2004-05-27 |
| DE50104041D1 (de) | 2004-11-11 |
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