EP3339130A1 - Bogie pour véhicule ferroviaire - Google Patents

Bogie pour véhicule ferroviaire Download PDF

Info

Publication number
EP3339130A1
EP3339130A1 EP15901703.7A EP15901703A EP3339130A1 EP 3339130 A1 EP3339130 A1 EP 3339130A1 EP 15901703 A EP15901703 A EP 15901703A EP 3339130 A1 EP3339130 A1 EP 3339130A1
Authority
EP
European Patent Office
Prior art keywords
railroad
secondary spring
crossbeams
plate
end portions
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
Application number
EP15901703.7A
Other languages
German (de)
English (en)
Other versions
EP3339130A4 (fr
EP3339130B1 (fr
Inventor
Haruhiko NANASAWA
Ryouichi Nakano
Kazuo KAMEKAWA
Takao Watanabe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP3339130A1 publication Critical patent/EP3339130A1/fr
Publication of EP3339130A4 publication Critical patent/EP3339130A4/fr
Application granted granted Critical
Publication of EP3339130B1 publication Critical patent/EP3339130B1/fr
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Anticipated expiration legal-status Critical

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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
    • B61F5/50—Other details
    • B61F5/52—Bogie frames

Definitions

  • the present invention relates to a railroad-car bogie including secondary spring receivers in both end portions in a railroad tie direction of crossbeams forming an inner-frame bogie frame.
  • a railroad-car bogie includes a bogie frame, wheel sets, axle-box support devices, and the like.
  • the bogie frame mainly includes two side beams separately arranged in a rail direction and crossbeams arranged in a railroad tie direction and connecting center portions in the rail direction of the side beams.
  • the wheel set is configured so that two wheels are fastened by an axle
  • the axle-box support device includes an axle box that rotatably supports this wheel set at the bogie frame, a primary spring placed on the axle box and elastically supporting the axle box, and the like.
  • bogie frame In order to reduce a mass of the bogie, there is a bogie frame in which lengths of the crossbeams and the wheel sets in the railroad tie direction are reduced and the two side beams are arranged to be closer to center in the railroad tie direction of the crossbeams than a pair of wheels.
  • This bogie frame is called “inner-frame bogie frame" (see PTL 1).
  • An inner-frame bogie frame includes a pair of right and left secondary springs (air springs or coil springs) which are placed in a center portion in a rail direction and elastically support a car body.
  • secondary springs air springs or coil springs
  • the inner-frame bogie frame in which the secondary springs are placed at a large interval in the railroad tie direction includes a secondary spring receiver having a cantilever structure in which crossbeams penetrating a side beam project from a center portion in a longitudinal direction of the side beam forming the bogie frame toward outside in the railroad tie direction (direction away from center portion in railroad tie direction).
  • the secondary spring receiver of the inner-frame bogie frame has a cantilever structure, and therefore high stress tends to be generated in a joining portion of the side beam and the crossbeam which is a base of the secondary spring receiver. Thus, there is a problem in obtaining high strength without increasing a mass of the bogie.
  • An object of the invention is to provide an inner-frame type railroad-car bogie in which reduction in weight is promoted and stress on connection portions between side beams and crossbeams forming secondary spring receivers can be reduced.
  • a railroad-car bogie includes: two side beams separately arranged in a rail direction; two crossbeams separately arranged in a railroad tie direction; and secondary spring receivers on each of which a secondary spring supporting a car body is placed, in which: each of the secondary spring receivers is a box including end portions in the railroad tie direction of the crossbeams, a center portion in the rail direction of the side beam, an upper plate connecting upper portions of the end portions and an upper portion of the center portion, a lower plate connecting lower portions of the end portions and a lower portion of the center portion, and a side plate connecting end portions in the railroad tie direction of the upper plate and the lower plate; and the lower plate has a lighting hole for keeping a balance of rigidity.
  • Fig. 1 is a plan view of a railroad-car bogie in this embodiment.
  • a railroad-car bogie (hereinafter, bogie) 1 includes a bogie frame 5, wheel sets each of which includes two wheels 240 in both end portions in the railroad tie direction 110 of an axle 230, axle-box support devices (not illustrated) that rotatably hold the wheel sets at the bogie frame 5, and braking devices 56 that generate brake force in the wheels 240.
  • the bogie frame 5 includes two side beams 10 separately arranged in the rail direction and two crossbeams 20 that are horizontally placed and connect center portions in the rail direction 100 of the two side beams 10.
  • the railroad-car bogie 1 in this embodiment is an inner frame bogie whose wheels 240 are provided on the outside of the side beams 10 in the railroad tie direction 110 (direction away from center portions in railroad tie direction of crossbeams 20).
  • a car body is elastically supported via secondary springs 210 (normally, air springs or coil springs) placed on an upper surface of the bogie frame 5 of the railroad-car bogie 1.
  • a lower surface (not illustrated) of an underframe forming a floor surface of the car body includes a center pin 250 whose tip portion is hung downward, and this tip portion of the center pin 250 is inserted into a center portion formed by the side beams 10 and the crossbeams 20 forming the bogie frame 5.
  • the railroad-car bogie 1 turns on a horizontal surface around a vertical axis of the center pin 250.
  • Fig. 2 is a plan view of the bogie frame 5 of the railroad-car bogie 1.
  • the bogie frame 5 includes the two side beams 10 separately arranged in the rail direction 100, the two crossbeams 20 that penetrate the center portions in the rail direction 100 of the side beams 10, and secondary spring receivers A provided in both end portions in the railroad tie direction 110 of the two crossbeams 20 and on which the secondary springs 210 are placed.
  • Fig. 3 is an enlarged plan view of the secondary spring receiver A in Fig. 2
  • Fig. 4 is an enlarged bottom view of the secondary spring receiver A in Fig. 2
  • Fig. 5 is a vertical cross-sectional view (cross-sectional view taken along B-B in Fig. 3 ) in the railroad tie direction of the secondary spring receiver A in Fig. 2
  • Fig. 6 is a vertical cross-sectional view (cross-sectional view taken along C-C in Fig. 3 ) in the rail direction of the secondary spring receiver A in Fig. 2 .
  • the secondary spring receiver A is formed as a box including the end portions in the railroad tie direction 110 of the two crossbeams 20, the center portion in the rail direction 100 of the side beam 10 (between the two crossbeams 20), an upper plate 50a connected to upper portions of the end portions of the crossbeams 20 and an upper portion of the center portion of the side beam 10, a lower plate 50e connected to lower portions of the end portions of the crossbeams 20 and a lower portion of the center portion of the side beam 10, a reinforcing plate 51b connecting, in the height direction 120, center portions in the railroad tie direction 110 of the upper plate 50a and the lower plate 50e, and a side plate 51a connecting, in the height direction 120, end portions in the railroad tie direction 110 of the upper plate 50a and the lower plate 50e.
  • the braking devices 56 are provided in both end portions of the crossbeams 20 forming the secondary spring receiver A.
  • the lower plate 50e has lighting holes 80.
  • the reinforcing plate 51b is provided in the rail direction substantially in parallel to the side plate 51a, and both end portions thereof in the rail direction are welded to a side surface of each crossbeam 20, the upper plate 50a, and the lower plate 50e.
  • the braking device 56 is provided in a range intersecting a surface 51bP (see Fig. 3 ) obtained by virtually extending the reinforcing plate 51b.
  • a placing base 52 is placed on an upper surface of the upper plate 50, and the secondary spring 210 is provided on the placing base 52.
  • a mass of the car body of the railroad car is supported by the secondary springs 210 provided in the railroad-car bogie 1, and a downward load (mass of car body) that the secondary springs 210 receive is a moment load that acts in a direction in which the secondary spring receivers A provided in the bogie frame 5 are pressed down.
  • This moment load is supported by the two crossbeams 20, the upper plate 50a, and the lower plate 50e forming the box-shaped secondary spring receiver A via the placing base 52.
  • a tensile load is generated in the railroad tie direction 110 in a joining portion of an upper surface of the secondary spring receiver A and the side beam 10, and the tensile load is borne by the upper plate 50a.
  • a compressive load is generated in the railroad tie direction 110 in a joining portion of a lower surface of the secondary spring receiver A and the side beam 10, and the compressive load is borne by the lower plate 50e.
  • the lower plate 50e of the secondary spring receiver A has the lighting holes 80 so that the secondary spring receiver A does not have excessively high rigidity. This prevents a sudden change in rigidity at an abutting portion of the secondary spring receiver A and the side beam 10.
  • the rigidity of the secondary spring receiver A can be adjusted by a thickness of the lower plate 50b, the number of lighting holes 80 and a shape thereof, and the like.
  • the braking devices 56 are provided to the crossbeams 20 so as to be included in the extended surface 51bP of the reinforcing plate 51b forming the secondary spring receiver A. Therefore, even in a case where the braking devices 56 grasp the wheels 240 and a moment load acts on the braking devices 56 around axes along the railroad tie direction 110 of the crossbeams 20 and even in a case where a large moment load caused by the braking devices 56 acts, it is possible to restrain generation of high stress because one crossbeam 20 and the other crossbeam 20 are connected by the reinforcing plate 51b, an upper edge of the reinforcing plate 51b is connected to the first upper plate 50a, and a lower edge of the reinforcing plate 51b is connected to the lower plate 50e.
  • the upper plate 50a of the secondary spring receiver A may be divided into a first upper plate 50a and a second upper plate 50b arranged in the railroad tie direction.
  • an assembly D see Fig. 7
  • the first upper plate 50a, the side plate 51a, and the reinforcing plate 51b is welded to the crossbeams 20 and the side beam 10
  • weld welded portion 90b
  • the abutting portion of the lower plate 50e and the side beam 10 also from above in the height direction 120, and therefore it is possible to further increase strength of the joining portion of the lower surface of the secondary spring receiver A and the side beam 10.
  • the inside of the secondary spring receiver A (welded portions 90a in Fig. 5 and welded portions 90c in Fig. 6 ) can be welded by a welding torch inserted through the lighting hole 80 of the lower plate 50e. Therefore, the box-shaped secondary spring receiver A having higher strength can be provided in the bogie frame 5, and thus it is possible to promote reduction in weight without including a reinforcing member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Braking Arrangements (AREA)
EP15901703.7A 2015-08-19 2015-08-19 Bogie pour véhicule ferroviaire Active EP3339130B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/073216 WO2017029721A1 (fr) 2015-08-19 2015-08-19 Bogie pour véhicule ferroviaire

Publications (3)

Publication Number Publication Date
EP3339130A1 true EP3339130A1 (fr) 2018-06-27
EP3339130A4 EP3339130A4 (fr) 2019-04-17
EP3339130B1 EP3339130B1 (fr) 2022-03-23

Family

ID=58051203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15901703.7A Active EP3339130B1 (fr) 2015-08-19 2015-08-19 Bogie pour véhicule ferroviaire

Country Status (3)

Country Link
EP (1) EP3339130B1 (fr)
JP (1) JP6420485B2 (fr)
WO (1) WO2017029721A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112622971A (zh) * 2021-01-05 2021-04-09 中车唐山机车车辆有限公司 构架、转向架及轨道车辆

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108311860B (zh) * 2018-03-14 2023-08-01 中铁第四勘察设计院集团有限公司 一种无需基坑的转向架更换设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5791838A (en) * 1980-11-26 1982-06-08 Kawasaki Heavy Ind Ltd Truck frame for vehicle
JPH0686212B2 (ja) * 1989-04-14 1994-11-02 株式会社日立製作所 鉄道車両用台車枠
JP4356540B2 (ja) * 2004-06-30 2009-11-04 住友金属工業株式会社 鉄道車両用台車枠及び鉄道車両用台車
ES2335793T5 (es) * 2006-09-01 2014-02-27 Alstom Transport Technologies Bogie con oferta de espacio de construcción mejorada
JP2008207576A (ja) * 2007-02-23 2008-09-11 Nippon Sharyo Seizo Kaisha Ltd 鉄道車両用台車枠及びその製造方法
FR2913654B1 (fr) * 2007-03-15 2009-07-03 C G L Sarl Boggie,notamment pour wagon de transport de marchandises.
JP4685921B2 (ja) * 2008-12-26 2011-05-18 株式会社日立製作所 鉄道車両用台車
JP5389578B2 (ja) * 2009-09-14 2014-01-15 日本車輌製造株式会社 梁
JP5524634B2 (ja) * 2010-01-20 2014-06-18 公益財団法人鉄道総合技術研究所 鉄道車両用台車
JP5357835B2 (ja) * 2010-06-08 2013-12-04 公益財団法人鉄道総合技術研究所 鉄道車両の組立台車枠及びその亀裂検出システム
CN102923152A (zh) * 2011-08-10 2013-02-13 南车青岛四方机车车辆股份有限公司 轻量化转向架焊接构架及其焊接加工方法
CN104527701A (zh) * 2014-12-10 2015-04-22 长春轨道客车股份有限公司 米轨动车组动车转向架

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112622971A (zh) * 2021-01-05 2021-04-09 中车唐山机车车辆有限公司 构架、转向架及轨道车辆

Also Published As

Publication number Publication date
JPWO2017029721A1 (ja) 2018-05-10
JP6420485B2 (ja) 2018-11-07
EP3339130A4 (fr) 2019-04-17
EP3339130B1 (fr) 2022-03-23
WO2017029721A1 (fr) 2017-02-23

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