EP2072369A1 - Suspension primaire dotée d'une traverse mobile sur un châssis, en particulier d'un bâti tournant pour un véhicule sur rail - Google Patents

Suspension primaire dotée d'une traverse mobile sur un châssis, en particulier d'un bâti tournant pour un véhicule sur rail Download PDF

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Publication number
EP2072369A1
EP2072369A1 EP07024568A EP07024568A EP2072369A1 EP 2072369 A1 EP2072369 A1 EP 2072369A1 EP 07024568 A EP07024568 A EP 07024568A EP 07024568 A EP07024568 A EP 07024568A EP 2072369 A1 EP2072369 A1 EP 2072369A1
Authority
EP
European Patent Office
Prior art keywords
frame
bogie
spring
axis
rotation
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.)
Withdrawn
Application number
EP07024568A
Other languages
German (de)
English (en)
Inventor
Gregor Dipl.-Ing. Mackowiak
Laurent Dipl.-Ing. Daniel
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 Transport SA
Original Assignee
Alstom Transport SA
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 Alstom Transport SA filed Critical Alstom Transport SA
Priority to EP07024568A priority Critical patent/EP2072369A1/fr
Publication of EP2072369A1 publication Critical patent/EP2072369A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • B61F5/26—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
    • B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs

Definitions

  • the invention relates to a chassis, in particular a bogie for a rail vehicle with a frame and at least one wheelset, wherein the at least one wheelset is articulated via Radsatzscher to the frame, and wherein the Radsatzlenker at least one spring, for example a coil spring, on and Support frame (so-called primary suspension).
  • a chassis in particular a bogie for a rail vehicle with a frame and at least one wheelset, wherein the at least one wheelset is articulated via Radsatzsch to the frame, and wherein the Radsatzlenker at least one spring, for example a coil spring, on and Support frame (so-called primary suspension).
  • a disadvantage of these bogies is that the necessary to accommodate a specific load coil springs build relatively large and / or Suspension comfort due to the spring hardening with increasing deflection is not always satisfactory.
  • a probates means to minimize the space requirement of at least one coil spring is coaxial with an outer coil spring to arrange an inner coil spring. This combination of two coaxially arranged coil springs is hereinafter referred to as a coil spring set.
  • the invention is based on the object to provide a chassis, in particular a bogie for a rail vehicle with respect to suspension comfort, space requirements and capacity further improved primary suspension.
  • This invention is achieved in a bogie for a rail vehicle with a frame and at least one wheel set, wherein the at least one wheelset is articulated via Radsatzlenker to the frame, and wherein the Radsatzlenker supported by at least one spring on the frame, that at the Radsatzlenker a rotatably mounted cradle carrier is provided and that at least one spring is arranged on this cradle carrier.
  • At least one spring may be arranged on both sides of a rotation axis of the cradle carrier.
  • the cradle support according to the invention ensures that the springs are acted upon substantially only with the forces required between the frame and the wheelset for suspension of the rail vehicle.
  • the springs in particular the coil springs, not supported directly on the Radsatzlenker, but at one end supported on the bolster, which is rotatably connected to the Radsatzlenker, the coil springs are acted upon only with forces that are substantially parallel to its longitudinal axis.
  • This application of force is very favorable for the coil springs and leads to a comparison to generic primary springs better response and comfort behavior.
  • the springs harden because they are additionally curved during compression.
  • the suspension comfort of the bogie can be increased with the same size of the coil springs and the carrying capacity of the coil springs or the bogie can be increased.
  • the construction according to the invention with the same suspension comfort and / or the same load capacity to significantly reduce the space requirement of the coil springs frame.
  • This is particularly advantageous since the coil springs usually dip into the frame of the bogie, so that a reduction in the diameter of the coil springs at the same time brings a reduction in the width of the frame of the bogie with it. Since the frame of the bogie over the entire length of the bogie usually has the same width, a significant gain in space within the bogie is possible even by a relatively small reduction in the width of the frame.
  • this can lead to gearboxes being mounted on the wheelsets outside the frame.
  • gearboxes being mounted on the wheelsets outside the frame.
  • the cradle support is rotatably mounted in rubber bearings (silent blocks), the movement of the Radsatzlenkers and consequently also the primary suspension is attenuated simultaneously due to the damping properties of the silent blocks.
  • the transmission of structure-borne noise is minimized by the wheelsets on the bogie, resulting in a reduction of the noise emissions of the bogie according to the invention.
  • an inner helical spring is arranged coaxially to an outer helical spring.
  • a coil spring set is arranged on each side of the axis of rotation of the cradle carrier.
  • Another economically very important advantage of the bogie according to the invention is that on both sides of the cradle identical design coil springs or coil spring sets can be used. This reduces the development effort. Also manufacturing, assembly, but also maintenance and repair can be simplified accordingly. At the same time, every optimization of a coil spring or a coil spring set has a double effect, since it is used twice for each cradle carrier.
  • Another advantage of the bogie according to the invention is the fact that between the coil springs a lift-off and / or a stop buffer can be accommodated. Both components are absolutely necessary and can absorb large forces due to the central arrangement on the axis of rotation of the wheelset without the frame of the bogie or the wheelset should therefore be additionally strengthened.
  • FIG. 1 shows a side view of a bogie 1 according to the prior art with a frame 3, the wheelsets 5 are rotatably connected via Radsatzscher 7 with the frame 3.
  • the pivot points of the Radsatzscher 7 in the frame 3 are marked with the reference numeral 9.
  • FIG. 2 is an isometric view of a primary suspension according to the invention shown.
  • the same components are provided with the same reference numerals and it is the respect FIG. 1 Said accordingly.
  • a bolster 17 is rotatably mounted on the Radsatzscher 7 above a rotational axis 15 of the wheel 5.
  • An axis of rotation 19 of the bolster 17 is arranged vertically above the axis of rotation 15 of the wheel 5.
  • the axes of rotation 19 and 15 are parallel to each other.
  • a storage of the weight carrier 17 is provided with the reference numeral 21.
  • a helical spring set 23 is arranged in each case.
  • the frame 3 In the area located above the cradle carrier 17, the frame 3 has a U-shaped cross-section.
  • the sterenfederates 23 are mostly located within the U-shaped profile and are based up against the frame 3 from.
  • a width B of the frame 3 must therefore be greater than the diameter of the coil spring sets 23. Therefore, there is a direct relationship between the width B of the frame 3 and the diameter of the coil spring sets 23rd
  • FIG. 3 is an isometric view of the inside of the bogie, without the frame 3 shown.
  • FIG. 4 is the in FIG. 3 illustrated assembly comprising substantially the Radsatzscher 7, the cradle 17 and the coil spring sets 23 in a side view ( FIG. 4a ), in a side view ( FIG. 4b ) and one View from above ( Figure 4c) shown.
  • the wheelset 5 is not shown.
  • the bolster 17 remains parallel to the support surface of the coil spring sets 23 on the frame 3 and describes in a first approximation a rectilinear movement (see double arrows 28).
  • the bearing surface is in FIG. 4a indicated by the line 27.
  • the coil spring sets 23 are always straight regardless of the deflection of the wheelset or the Radsatzschers 7 and thereby be charged evenly.
  • the material utilization of the coil spring sets 23 can be increased and any security surcharges can be reduced.
  • the diameter of the coil spring sets 23 can be reduced and / or the height of the coil spring sets 23 can be reduced. Both result in more space being available in the area of the bogie.
  • FIG. 5 shows a section along the line BB through the primary suspension according to the invention. Based on this section, the constructive details can be explained in more detail. From the FIG. 5 It is clear that the coil spring sets 23 consist of an outer coil spring 29 and a coaxially arranged inner coil spring 31. Below the coil springs 29 and 31 rubber elements 33 are provided, which on the one hand have a damping effect and on the other hand serve as an additional spring element. Between the coil spring sets 23 and vertically above the axis of rotation 19 of the cradle 17, a stop buffer 35 and a lift-off 37 are arranged.
  • FIG. 6 a section along the line AA is shown. From this section, the structure of the lift-off 37 is even clearer.
  • the lift-off protection 37 comprises a screw 39.
  • the screw 39 is screwed to the cradle 17.
  • the head of the screw 39 is surrounded by a counterpart which is fixed to the frame 3.
  • an opening in the counterpart 41 is dimensioned such that the shank of the screw 39 fits through the opening with clearance, but not the head of the screw 39, however. This prevents that the Radsatzlenker 7 springs too far.
  • the cradle 17 is attached via a bolt 43 to the Radsatzscher 7. Between the bolt 43 and the cradle 17 rubber bearings 45 are arranged.
  • rubber bearings 45 initially provide for a certain damping of the relative movement of cradle 17 and wheelset 7 and also reduce the noise of the bogie when driving over bumps.
  • the rubber bearings 45 may be formed as Silentblocs that allow only a certain angle of rotation, for example, ⁇ 6 ° corresponding to a total rotation angle of 12 °. This also achieves damping.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)
EP07024568A 2007-12-19 2007-12-19 Suspension primaire dotée d'une traverse mobile sur un châssis, en particulier d'un bâti tournant pour un véhicule sur rail Withdrawn EP2072369A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07024568A EP2072369A1 (fr) 2007-12-19 2007-12-19 Suspension primaire dotée d'une traverse mobile sur un châssis, en particulier d'un bâti tournant pour un véhicule sur rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07024568A EP2072369A1 (fr) 2007-12-19 2007-12-19 Suspension primaire dotée d'une traverse mobile sur un châssis, en particulier d'un bâti tournant pour un véhicule sur rail

Publications (1)

Publication Number Publication Date
EP2072369A1 true EP2072369A1 (fr) 2009-06-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07024568A Withdrawn EP2072369A1 (fr) 2007-12-19 2007-12-19 Suspension primaire dotée d'une traverse mobile sur un châssis, en particulier d'un bâti tournant pour un véhicule sur rail

Country Status (1)

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EP (1) EP2072369A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105764770A (zh) * 2013-12-05 2016-07-13 川崎重工业株式会社 铁道车辆用轴箱支持装置
CN109204363A (zh) * 2017-06-30 2019-01-15 比亚迪股份有限公司 轨道车辆及轨道车辆的车轮组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB507255A (en) * 1938-03-03 1939-06-13 Alfred Walter Maley Truck suspension for railway and tramway vehicles
FR923115A (fr) * 1944-04-03 1947-06-27 O M Societa Anonima Assemblage entre essieux et parties suspendues dans des véhicules roulant sur des rails
GB633506A (en) * 1946-05-27 1949-12-19 Schweizerische Lokomotiv Improved mounting for floating axles, in particular for rail vehicles
FR1431736A (fr) * 1965-01-14 1966-03-18 Pneumatiques, Caoutchouc Manufacture Et Plastiques Kleber-Colombes Suspension élastique de roue, notamment pour véhicule ferroviaire
US5189962A (en) * 1988-09-01 1993-03-02 Kawasaki Jukogyo Kabushiki Kaisha Axle box suspension with resilient elements adhered to the movable components such that all relative movement between the components occurs by deformation of the resilient elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB507255A (en) * 1938-03-03 1939-06-13 Alfred Walter Maley Truck suspension for railway and tramway vehicles
FR923115A (fr) * 1944-04-03 1947-06-27 O M Societa Anonima Assemblage entre essieux et parties suspendues dans des véhicules roulant sur des rails
GB633506A (en) * 1946-05-27 1949-12-19 Schweizerische Lokomotiv Improved mounting for floating axles, in particular for rail vehicles
FR1431736A (fr) * 1965-01-14 1966-03-18 Pneumatiques, Caoutchouc Manufacture Et Plastiques Kleber-Colombes Suspension élastique de roue, notamment pour véhicule ferroviaire
US5189962A (en) * 1988-09-01 1993-03-02 Kawasaki Jukogyo Kabushiki Kaisha Axle box suspension with resilient elements adhered to the movable components such that all relative movement between the components occurs by deformation of the resilient elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105764770A (zh) * 2013-12-05 2016-07-13 川崎重工业株式会社 铁道车辆用轴箱支持装置
CN105764770B (zh) * 2013-12-05 2017-07-25 川崎重工业株式会社 铁道车辆用轴箱支持装置
CN109204363A (zh) * 2017-06-30 2019-01-15 比亚迪股份有限公司 轨道车辆及轨道车辆的车轮组件

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