EP0607723A1 - Chasse-pierres - Google Patents

Chasse-pierres Download PDF

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Publication number
EP0607723A1
EP0607723A1 EP93403165A EP93403165A EP0607723A1 EP 0607723 A1 EP0607723 A1 EP 0607723A1 EP 93403165 A EP93403165 A EP 93403165A EP 93403165 A EP93403165 A EP 93403165A EP 0607723 A1 EP0607723 A1 EP 0607723A1
Authority
EP
European Patent Office
Prior art keywords
support
plate
stone
rail
absorption device
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.)
Ceased
Application number
EP93403165A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jean-Daniel Nast
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
GEC Alsthom 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 GEC Alsthom Transport SA filed Critical GEC Alsthom Transport SA
Publication of EP0607723A1 publication Critical patent/EP0607723A1/fr
Ceased 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
    • B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
    • B61F19/06—Nets, catchers, or the like for catching obstacles or removing them from the track
    • 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
    • B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like

Definitions

  • the present invention relates to a stone thrower, that is to say a device placed at the front of the locomotives and intended to reject obstacles (stones, etc.) fallen or placed on the rails.
  • Such devices have been known for a long time. They include, for each wheel of the front axle of the locomotive, an arm integral with the axle box or the chassis of the bogie and which extends by bending in the direction of the rail so that its end comes in front of the wheel .
  • Document FR-A-2 653 729 describes one of these devices. It comprises an elongated support, a first end of which is made integral with the front axle of the vehicle. The second end of the support supports an impact piece, placed in front of the wheel and near the rail, via an energy absorption device.
  • the energy absorption device comprises a first plate to which the impact piece is fixed. This first plate is articulated to a second plate fixed to the second end of the elongated support, the two plates being parallel to each other.
  • These trays are kept at a constant distance from each other. They have housings for studs which rotate the two plates. In the event of an impact on the impact part, a force is transmitted from this part to the first plate. If the force is greater than the elastic limit of the set of studs, these become deformed, which produces a rotation of the first plate and a displacement of the impact piece.
  • This device has the advantage that in the event of a violent impact, it suffices to replace the studs which have deformed. It has a relatively long support, at the end of which is fixed in overhang the energy absorption device and the impact part.
  • the support is metallic and, although it can be of honeycomb structure, it constitutes with the energy absorption device and the impact part, a significant mass which is not amortized since fixed directly on the box. 'axle. This large mass can lead to a phenomenon of fatigue of its connections on the axle box. There is therefore a risk of breakage of one of the links and, because of the significant vibrations of the axle, a risk of detachment of the rocker.
  • the energy absorption device being, according to this document, placed at the end of the support and in a plane parallel to the corresponding wheel, the center of gravity of this part of the device is located in the plane of the wheel. In the event of detachment of the rocker, there is a risk that it, driven by the weight of its front part, falls on the rail which could be dangerous.
  • the stone thrower according to the invention overcomes these drawbacks. Its weight is reduced thanks to the use of composite material to make the support. On the other hand, provision has been made to offset its center of gravity with respect to the vertical plane passing through the rail. Thus, in the event of a stall, the rocker will fall off the rails.
  • the production of the composite material support provides, in addition to a reduction in weight, the advantage of better damping than a metal beam.
  • the support absorbs, to a certain extent, the forces resulting from impacts on the impact part.
  • the subject of the invention is therefore a stone thrower comprising, for each of the front wheels of a rail vehicle, an elongated support of which a first end is made integral with the front axle of the vehicle by fixing means, and a part impact placed in front of the wheel and close to the rail, the impact piece being fixed to an energy absorbing device fixed to the second end of the elongated support, characterized in that the elongated support is made of composite material , the energy absorbing device being arranged on the support so as to offset the center of gravity of the stone thruster relative to the vertical plane passing through the rail.
  • the energy absorption device can be arranged above the support.
  • It may comprise a first plate to which the impact piece is fixed, the first plate being articulated to a second plate fixed to the second end of the elongated support and parallel to the first plate, the plates being maintained at a constant distance one of the other, at least one stud being engaged by one end in a bore of the first plate and by a second end in a bore of the second plate.
  • the means of fixing the support may advantageously comprise connecting elements allowing the transmission of the forces to the front axle of the vehicle.
  • the first end of the elongated support can advantageously constitute the sub-guard of the corresponding axle part.
  • the elongated support may be made of a composite material based on glass fibers.
  • the first plate can be used as a support for an auxiliary member, for example a sandblasting pipe or a lubrication pipe.
  • Figure 1 shows the front part of a rail vehicle bogie, seen from the side and in elevation. We recognize the chassis 10 of the bogie resting by means of springs 11 of primary suspension on the axle box 12.
  • the rocker 1 is made integral with the front axle of the vehicle by the rear end of the elongated support 2 playing the role of sub-guard for the axle box.
  • the front end of the support 2 supports the energy absorption device 3, which supports the impact piece 4 and the end of the sandblasting pipe 5, the nozzle 51 of which is thus located near the rail 7 and the corresponding wheel 13.
  • Figure 2 is a side view of the rocker which is seen from a position between the rails.
  • Figure 3 is a top view of the rock cutter.
  • FIG. 4 is a view according to section IV-IV of FIG. 2.
  • the elongate support 2 made for example of composite material based on glass fibers, is formed by assembling two longitudinal parts: an upper part 21 and a lower part 22. The assembly of these two parts gives a hollow support.
  • the support is made integral with the axle box by connecting elements 23 and 24 which will be detailed later.
  • the front end of the support carries the energy absorption device 3 of the type described in document FR-A-2 653 729.
  • the device 3 comprises a first plate 31 to which the impact piece 4 is fixed so arranged to be about 40 mm above the rail.
  • the plate 31 is articulated to a second plate 32 secured to the support 2.
  • the plates 31 and 32 are mutually parallel.
  • the plate 32 preferably circular, is made integral with the support 2 by means of a support part 25. It is provided with a central protuberance 33 serving as an axis of rotation to the plate 31. The end of this protuberance is threaded and a nut 34, associated with washers 35 and 36, makes it possible to hold the plate 31.
  • the plates 31 and 32 are kept at a fixed distance from each other by means of a shoulder of the protuberance 33 on which the plate 31 rests.
  • Metal studs 37 connect the plates 31 and 32, their ends engaging in opposite holes made in these plates.
  • the studs are arranged parallel to the axis of articulation 38 of the plate 31.
  • the energy absorption device 3 being placed above the elongated support 2, the plates 31 and 32 are in oblique planes relative to the railroad track.
  • the plate 31 extends as far as the plane of the wheel 13 to support the impact piece 4.
  • the plate 31 and the impact piece 4 have notched surfaces facing each other. The fixing between the plate 31 and the impact piece 4 is carried out by the screw 41 and the nut 42, after adjustment of the height of the impact piece relative to the rail.
  • Hose clamps 43 allow the fixing of the sandblasting pipe 5 on the piece of imapct 4.
  • the plate 31 and the impact piece 4 can be made of aluminum; the plate 32 can be made of steel. This contributes to the offset of the center of gravity of the rocker compared to the plane of the wheel.
  • the plate 32 is fixed to an oblique face of the support part 25 by four screws 39.
  • the support part 25 can be made of aluminum.
  • the support 2 is subjected in normal operation to numerous constraints. Its structure and its method of attachment must allow it to withstand all these constraints. Figures 4, 5 and 6 allow a better view of its constitution.
  • the parts 21 and 22 of the support 2 are assembled by gluing and riveting. Before their assembly, different elements have been put in place or provided for the good transmission of forces.
  • the section of the support 2 visible in FIG. 4 shows the presence of spacers 61 between the upper and lower faces of the support 2. They make it possible to avoid the so-called "drum skin” phenomena between these two faces.
  • These spacers can be made of aluminum. They are four in number since the support part 25 uses, for its fixing, four bolts 62 fitted with self-locking nuts (see FIG. 3). Sockets 64 surrounding the bolts 62 allow the transmission of shear forces between the metal parts and the composite parts. Washers 65, sufficiently wide, allow a good distribution of the forces exerted by the heads of the bolts 62.
  • the connecting element 24, visible in section in FIG. 5, comprises a horizontal plate 71 of steel onto which are welded two vertical flanges 72 also of steel, the assembly making it possible to cover the support 2.
  • the plate 71 has two holes 73 (visible in Figure 3) allowing its attachment to the axle box.
  • the upper part 21 of the support 2 has upper 74 and lateral 75 inserts (only one of which is shown) used for fixing the support 2 to the connecting element 24 by means of screws 76 and 77.
  • Metal rings 78 allow the transmission of shear forces between the metal parts and the composite parts.
  • the connecting element 23, visible in section in FIG. 6, comprises a horizontal plate 81 of steel onto which vertical gussets 82, also of steel, are fixed by bolting, the assembly making it possible to cover the support 2.
  • the plate 81 comprises two holes 83 (also visible in FIG. 3) allowing the element 23 to be fixed to the box god.
  • the upper part 21 of the support 2 has upper 84 and lateral 85 inserts (only one of which is shown) used for fixing the support 2 to the connecting element 23 using screws 86, 87 and 88.
  • a preload of the support 2 is obtained by bolts 86, 87 and 88 fitted with self-locking nuts 96, 97 and 98.
  • spring washers for example 91 and 92, make it possible to compensate for the creep of the composite material.
  • the rings 93, 94 and 95 allow the transmission of shear forces between the metal elements and the elements made of composite material.
  • the nut 96 rests on a shoulder washer which extends opposite the ring 93.
  • the upper insert 84 has a groove for immobilizing the head of the screw 86, which facilitates the tightening of the screw. The same goes for the side inserts 85 with respect to the self-locking nuts 97 and 98.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Emergency Lowering Means (AREA)
  • Handcart (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Prevention Devices (AREA)
EP93403165A 1992-12-29 1993-12-24 Chasse-pierres Ceased EP0607723A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9215832 1992-12-29
FR9215832A FR2699878B1 (fr) 1992-12-29 1992-12-29 Chasse-Pierres.

Publications (1)

Publication Number Publication Date
EP0607723A1 true EP0607723A1 (fr) 1994-07-27

Family

ID=9437203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93403165A Ceased EP0607723A1 (fr) 1992-12-29 1993-12-24 Chasse-pierres

Country Status (9)

Country Link
EP (1) EP0607723A1 (pt)
JP (1) JPH06227393A (pt)
KR (1) KR940014042A (pt)
CN (1) CN1094681A (pt)
AU (1) AU5273593A (pt)
BR (1) BR9305273A (pt)
CA (1) CA2112436A1 (pt)
FR (1) FR2699878B1 (pt)
NO (1) NO934820L (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518036A1 (de) * 2015-12-10 2017-06-15 Siemens Ag Oesterreich Fahrwerk für ein Schienenfahrzeug

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29914293U1 (de) * 1999-08-10 2000-12-21 Fischer, Reinhard, 72348 Rosenfeld Schienengeführter Handhabungsgerätewagen
FR2801554B1 (fr) 1999-11-30 2002-02-01 Anf Ind Dispositif de deformation controlee sous efforts ou d'absorption d'energie par deformation, notamment deflecteur d'obstacles pour vehicule ferroviaire
CN1323004C (zh) * 2003-04-16 2007-06-27 川崎重工业株式会社 铁路车辆的排障板支承结构
KR101252546B1 (ko) * 2011-04-21 2013-04-08 현대로템 주식회사 철도차량용 액슬박스의 하방회전 차단장치
CN102806927A (zh) * 2011-06-02 2012-12-05 中国北车集团大同电力机车有限责任公司 机车排障器及机车
CN102806922B (zh) * 2011-06-03 2015-05-20 中国北车集团大同电力机车有限责任公司 带有撒砂排石装置的轴箱体总成及机车
JP6496168B2 (ja) * 2014-06-26 2019-04-03 日本車輌製造株式会社 軸箱構造を有する鉄道車両用台車
JP6397666B2 (ja) * 2014-06-27 2018-09-26 西日本旅客鉄道株式会社 排障器
EP3109124B1 (en) 2015-06-23 2019-05-08 ALSTOM Transport Technologies A railway bogie with a winterproof piping and wiring protecting impact guard
JP6557595B2 (ja) * 2015-12-25 2019-08-07 川崎重工業株式会社 鉄道車両用台車
CN107054396B (zh) * 2017-04-07 2019-03-22 中车青岛四方机车车辆股份有限公司 一种轨道车辆转向架挡油装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR829507A (fr) * 1937-02-23 1938-06-29 Anciens Etablissements Billard Chasse-pierres à hauteur constante pour véhicules roulant sur rails
DE1605830A1 (de) * 1968-02-13 1971-08-05 Huebner Kg Kurt Vorrichtung an Schienenfahrzeugen zum Wegraeumen von Hindernissen auf der Schiene

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR829507A (fr) * 1937-02-23 1938-06-29 Anciens Etablissements Billard Chasse-pierres à hauteur constante pour véhicules roulant sur rails
DE1605830A1 (de) * 1968-02-13 1971-08-05 Huebner Kg Kurt Vorrichtung an Schienenfahrzeugen zum Wegraeumen von Hindernissen auf der Schiene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518036A1 (de) * 2015-12-10 2017-06-15 Siemens Ag Oesterreich Fahrwerk für ein Schienenfahrzeug

Also Published As

Publication number Publication date
BR9305273A (pt) 1994-07-05
KR940014042A (ko) 1994-07-16
NO934820L (no) 1994-06-30
FR2699878A1 (fr) 1994-07-01
NO934820D0 (no) 1993-12-27
CA2112436A1 (fr) 1994-06-30
CN1094681A (zh) 1994-11-09
FR2699878B1 (fr) 1995-02-10
AU5273593A (en) 1994-07-14
JPH06227393A (ja) 1994-08-16

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