EP0274585B1 - Verwindungsweiches, zweiachsiges Drehgestell - Google Patents

Verwindungsweiches, zweiachsiges Drehgestell Download PDF

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Publication number
EP0274585B1
EP0274585B1 EP87115859A EP87115859A EP0274585B1 EP 0274585 B1 EP0274585 B1 EP 0274585B1 EP 87115859 A EP87115859 A EP 87115859A EP 87115859 A EP87115859 A EP 87115859A EP 0274585 B1 EP0274585 B1 EP 0274585B1
Authority
EP
European Patent Office
Prior art keywords
flange part
bolster
bogie
section
length
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.)
Expired - Lifetime
Application number
EP87115859A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0274585A1 (de
Inventor
Alberto Cortesi
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.)
Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
Original Assignee
Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
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 Schweizerische Lokomotiv und Maschinenfabrik AG (SLM) filed Critical Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
Priority to AT87115859T priority Critical patent/ATE71894T1/de
Publication of EP0274585A1 publication Critical patent/EP0274585A1/de
Application granted granted Critical
Publication of EP0274585B1 publication Critical patent/EP0274585B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B61F3/00—Types of bogies
    • B61F3/02—Types of bogies with more than one axle
    • B61F3/08—Types of bogies with more than one axle without driven axles or wheels
    • 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
    • B61F5/50—Other details
    • B61F5/52—Bogie frames

Definitions

  • the invention relates to a torsionally soft, two-axle bogie for rail vehicles, with two rigid longitudinal beams, which are torsionally rigid over their entire length and each have a box-shaped, closed cross-section and which are formed by a support structure which is arranged transversely in a central longitudinal section of the bogie and is designed to be torsionally rigid and rigid are interconnected
  • torsionally soft bogies are known, each of which allows the longitudinal members to be entangled about a transverse axis of the bogie, and which thus permit relatively hard suspension (primary suspension) of the longitudinal members on the wheel sets, which is particularly advantageous for the rolling behavior of the vehicle.
  • the longitudinal members which are each provided with a continuous longitudinal slot, are designed to be twist-free.
  • the supporting structure connecting the side members contains two cross members spaced apart from one another with a U-shaped cross section, of which only the webs are connected to the side members, and one between the Cross braces arranged from horizontal diagonal struts.
  • the supporting structure of this known bogie with its relatively large extension in the longitudinal direction of the bogie takes up a relatively large part of the space between the wheel sets, which cannot be used for the installation of larger parts.
  • the known bogie is therefore not suitable for designs with voluminous built-in parts to be arranged between the wheel sets, for example of units of the drive device of a rail locomotive.
  • the transverse support structure is designed with inclined cross member webs, which are arranged in planes that intersect in one or more parallel cutting lines.
  • the cross member particularly in the area of the inclined cross member webs, takes up a not insignificant part of the installation space existing between the wheel sets.
  • the invention has for its object to provide a bogie especially improved in this regard, with a compact, open design transverse support structure that allows strong crossings of the side members against each other in a small space and which also ensures sufficient corner stiffness of the connection between the side members .
  • the supporting structure is provided by a single cross member Open profile is formed, which has a horizontally arranged, for the transmission of at least a major portion of the horizontal forces acting in the longitudinal direction of the bogie and the bending moments acting around a vertical axis of rotation, which is rigidly connected to the two longitudinal beams and at least one vertically arranged flange part, with the flange and the two longitudinal members rigidly connected web part /, and that this cross member is designed at least within the middle third of its longitudinal extent with a cross section, the thrust center of which lies within the flange part or at least in a height region immediately adjacent to it.
  • the design of the bogie according to the invention allows, by appropriate dimensioning of the flange part and the web part, in a simple manner to optimize the corresponding cross-sectional parts of the cross member, which are mainly decisive for the transmission of the horizontal or vertical forces and bending moments.
  • a particularly simple, favorably stressed H-shaped construction of the bogie frame is achieved.
  • the axis of rotation of the cross member determined by the position of the shear center of the cross section runs at least in a central longitudinal section within or in the vicinity of the flange part which transmits the main portion of the horizontal forces and bending moments and which therefore has a correspondingly low torsional resistance with respect to this Has axis of rotation.
  • the cross section of the crossmember designed according to the invention therefore allows the crossmember to be rotated with very little torsional resistance without twisting caused by twisting of the longitudinal beams in the flange part, which has to absorb the large horizontally acting forces and the bending moments acting around the vertical axis of rotation, to cause a noteworthy stress due to arching stresses running parallel to the longitudinal axis of the cross member.
  • the rail vehicle according to FIGS. 1 to 3 has a box 1 and at least two bogies 2, only one of which is shown.
  • Each bogie 2 contains an H-shaped bogie frame 3 with two side members 4 and a cross member 5 connecting them.
  • the box 1 is supported on the side members 4 by means of two pairs of laterally arranged coil springs 6, which in turn are supported by known primary springs 7 on the axles of two wheel sets 8 are supported.
  • the wheel sets 8 are each coupled to a drive motor 10 which is supported on the relevant axle and which is fastened to the cross member 5 via a suspension 11.
  • the bogies 2 are also each via a device, not shown, for transmitting the tensile and braking forces, e.g.
  • a deep-drawing device of the type known, for example, from CH-PS 638 731, FIG. 4, with the box 1 rotatably connected about a vertical axis of rotation (vertical axis) 12.
  • Other parts present in the bogie 2 have been omitted in the drawing in order to simplify the illustration.
  • the longitudinal beams 4 are designed as torsionally rigid hollow beams, each of which has a closed box-shaped cross section formed by an upper flange 13, a lower flange 14 and two webs 15.
  • the cross member 5 has an I-shaped profile formed by a wide first flange part (main flange) 16 with a width B, a second flange part 17 with a smaller width and a web part 18.
  • the flange parts 16 and 17 are designed with widened, rounded end parts 20 and 21, which each merge into the lower chords 14 and the upper chords 13 of the side members 4 and are rigidly connected, for example welded, or to them, as shown in FIG. 2 , form a unit.
  • the end portions of the web parts 18 are also welded to the side members 4, which can be provided with stiffening ribs 22 as shown in FIGS. 2 and 3.
  • the first flange part 16 can be provided with two reinforcing ribs 23 of low height running along its edge parts, the end parts of which are also welded to the side members 4.
  • the first flange part 16 connecting the lower flanges 14 and the web part 18 are designed with a cross section that is constant over most of the length of the cross member 5, while the second flange 17 connecting the upper flanges 13 has one of its end parts 21 each against the vertical longitudinal center plane x of the bogie 2 has a continuously decreasing width, which is delimited by two elliptically curved edge parts 24 which are concavely constricted in plan view.
  • the cross member 5 in the area of the longitudinal center plane x has a cross section which is substantially smaller than in its end parts 20, 21 adjoining the side members 4, a cross-sectional shape resulting in the area of the smallest width B2 of the second flange part 17, the thrust center S 1a, in particular in the vicinity of the first flange part 16, in the embodiment shown below the flange part 16, lies.
  • the axis of rotation of the cross member 5 determined by the center of thrust S, runs in the vicinity of the first flange part 16, which therefore has a correspondingly low torsional resistance with respect to this axis of rotation and which therefore each twists when the longitudinal members 4 are twisted due to twisting of the track of the cross member 5 under slight, parallel to the longitudinal axis acting vault stresses.
  • the first flange part 16 is for the transmission of the main part of the horizontal forces acting in particular when driving through curves, in the longitudinal direction of the bogie and the large bending moments acting around the axis of rotation 12 and, together with the web part 18, for the Transmission of the largest part of the bending moments resulting from the support of the box 1 and the suspension of the drive motors 10 is dimensioned about the longitudinal center plane x.
  • the second flange part 17 is dimensioned in the area of the longitudinal center plane x to accommodate the remaining portion of the bending moments occurring about the vertical axis of rotation and about the longitudinal axis of the bogie, while the web part 18 absorbs the vertical transverse forces in a known manner Rotation of the cross member 5, due to its rigid connection to the side members 4 and due to its large distance from the axis of rotation, claimed by normal stresses (arch stresses) acting parallel to its longitudinal axis. Due to the relatively small width of the flange part 17 and with correspondingly favorable width dimensions of the flange part 17 which decrease in the described manner towards the center of the bogie, these tensions can be kept within the permissible values will.
  • the bogie according to FIGS. 4 and 5 contains a cross member 27, which has a T-shaped profile formed from the single flange part 16 and the web part 18 with a constant cross section and constant height H over its longitudinal extent.
  • the flange part 16 can be rigidly connected to the top chords 13 of the side members 4 or form a unit with them.
  • the web part 18 connected to the webs 15 of the side members 4 is additionally rigidly connected to the lower webs 14 at its free end parts via flange-like, rounded stiffening parts 28.
  • the flange part 16 can be connected to the lower chords 14, and the web part 18 can be connected to the upper chords 13 via the stiffening parts 28.
  • FIG. 1 the flange part 16 can be connected to the lower chords 14 and the web part 18 can be connected to the upper chords 13 via the stiffening parts 28.
  • the thrust center S of the cross section of the beam which determines the axis of rotation of the cross beam 27, lies in Intersection of the axes of symmetry V and W of the two partial cross sections, ie within the flange part 16, so that a correspondingly low stress on the flange part 16 is achieved by arching stresses.
  • the bogie according to FIGS. 6 and 7 contains a cross member 30, which has a cross-shaped profile formed from the single flange part 16, the web part 18 and a second web part 19 with a cross section and a constant height H that are essentially constant over its central length range.
  • the web part 18 is welded to the mutually facing webs 15 of the side members 4.
  • the flange part 16 is rigidly connected to the lower chords 14 or forms a unit with these.
  • the second web part 19 projecting downward from the flange part 16 extends over the two lower chords 14 and is welded to them.
  • the flange part 16 and the second web part 19 can be connected to the top chords 13 of the side members 4.
  • the center of thrust S of the cross section of the cross member 30 can be relocated to the cross sectional area of the flange part 16, so that when the cross member 30 is rotated about the corresponding axis of rotation, the flange part 16 experiences no or only negligibly low stress due to arching stresses.
  • the bogie according to FIGS. 8 to 10 includes a cross member 31 with an I-shaped profile formed by the wide first flange part 16, a narrower second flange part 17a and a web part 18a.
  • the flange parts 16 and 17a run parallel to one another over most of their length, the cross member 31 being designed in this length region with a smaller height H 1 than in its end parts adjoining the side members 4.
  • the first flange part 16 is arranged in the plane of the lower chords 14 of the side members 4 and rigidly connected to them in the manner described.
  • the second flange part 17a is designed with bent end portions 21a, which are welded to the top chords 13.
  • This design allows the use of a relatively wide second flange 17a, which, together with the first flange part 16 and the web part 18a, forms a cross section which is particularly suitable for the transmission of relatively large vertical forces and large bending moments about the longitudinal axis of the bogie, the rigid connection to the upper straps 13 connected end portions 21a ensure a flexible connection between the cross member 31 and the longitudinal members 4. Because of the bent end portions 21a, which are therefore designed to be relatively twistable, the axis of rotation of the cross member 31 is also in the vicinity of the wide flange part 16 in this embodiment, so that this main flange is only stressed by a correspondingly low arching stress when the cross member 31 is twisted.
  • 11 to 13 also contains an I-shaped cross member 32, with a substantially continuously curved flange part 17b over its entire length, the width B 1 of which can approximately correspond to the width B of the flange part 16.
  • the second flange part 17b is connected to a correspondingly concave portion of the web part 18b, so that the cross member 32 has one of its rigidly connected to the side members 4 end portions against the longitudinal median plane x continuously decreasing height H to H1 or a correspondingly decreasing cross-section.
  • 8 to 10 and 11 to 13 are particularly for Suitable bogies that are designed to accommodate large and heavy built-in parts.
  • reinforcing ribs 23 can be provided on the first flange part 16, as shown in FIGS. 1 to 3.
  • corresponding reinforcements 23a can also be formed by bent-up edge parts of a correspondingly designed flange part 16a.
  • the inventive design of the bogie frame is also suitable for bogies without a drive device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Escalators And Moving Walkways (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Vehicle Body Suspensions (AREA)
EP87115859A 1986-12-19 1987-10-29 Verwindungsweiches, zweiachsiges Drehgestell Expired - Lifetime EP0274585B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87115859T ATE71894T1 (de) 1986-12-19 1987-10-29 Verwindungsweiches, zweiachsiges drehgestell.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5104/86 1986-12-19
CH5104/86A CH672462A5 (enrdf_load_stackoverflow) 1986-12-19 1986-12-19

Publications (2)

Publication Number Publication Date
EP0274585A1 EP0274585A1 (de) 1988-07-20
EP0274585B1 true EP0274585B1 (de) 1992-01-22

Family

ID=4288000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115859A Expired - Lifetime EP0274585B1 (de) 1986-12-19 1987-10-29 Verwindungsweiches, zweiachsiges Drehgestell

Country Status (4)

Country Link
EP (1) EP0274585B1 (enrdf_load_stackoverflow)
AT (1) ATE71894T1 (enrdf_load_stackoverflow)
CH (1) CH672462A5 (enrdf_load_stackoverflow)
DE (1) DE3776312D1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110509945B (zh) * 2019-09-27 2024-01-26 西南交通大学 永磁直驱电机驱动的悬挂式单轨车辆单轴转向架

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041442A5 (enrdf_load_stackoverflow) * 1969-04-10 1971-01-29 Rheinstahl Siegener Eisenbahnb
DE3439616A1 (de) * 1984-10-30 1986-04-30 Wegmann & Co GmbH, 3500 Kassel Drehgestell fuer schienenfahrzeuge

Also Published As

Publication number Publication date
DE3776312D1 (de) 1992-03-05
CH672462A5 (enrdf_load_stackoverflow) 1989-11-30
EP0274585A1 (de) 1988-07-20
ATE71894T1 (de) 1992-02-15

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