EP3492392B1 - Bogie de wagon de chemin de fer, et wagon de chemin de fer équipé de ce bogie - Google Patents

Bogie de wagon de chemin de fer, et wagon de chemin de fer équipé de ce bogie Download PDF

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Publication number
EP3492392B1
EP3492392B1 EP17833989.1A EP17833989A EP3492392B1 EP 3492392 B1 EP3492392 B1 EP 3492392B1 EP 17833989 A EP17833989 A EP 17833989A EP 3492392 B1 EP3492392 B1 EP 3492392B1
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EP
European Patent Office
Prior art keywords
frame body
axle box
cross beam
rearward
bolster
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.)
Active
Application number
EP17833989.1A
Other languages
German (de)
English (en)
Other versions
EP3492392A1 (fr
EP3492392A4 (fr
Inventor
Yohsuke YAMAZAKI
Yoshiyuki Shimokawa
Masaaki Mizuno
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.)
Nippon Steel Corp
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Nippon Steel Corp
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Publication date
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Publication of EP3492392A1 publication Critical patent/EP3492392A1/fr
Publication of EP3492392A4 publication Critical patent/EP3492392A4/fr
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Publication of EP3492392B1 publication Critical patent/EP3492392B1/fr
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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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/40—Bogies with side frames mounted for longitudinal relative movements
    • 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
    • B61F3/04—Types of bogies with more than one axle with 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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/14—Side bearings
    • 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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies
    • 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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/44—Adjustment controlled by movements of vehicle body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like

Definitions

  • the present invention relates to a railroad car bogie (hereinafter, also simply referred to as "bogie”), and particularly relates to a bogie which allows self-steering of wheelsets on the forward and rearward sides, and a railroad car including the bogie and a car body.
  • bogie also simply referred to as "bogie”
  • a railroad car is formed of a car body and bogies, and the railroad car runs on rails.
  • a force with which wheels push the rails in a lateral direction a so-called lateral force
  • the lateral force increases.
  • a large lateral force increases risk of derailment. Accordingly, it is desirable to suppress the lateral force to a low level.
  • Patent Literature 1 discloses a bogie where wheelsets on the forward and rearward sides self-steer corresponding to a curvature of rails on a curved railroad track (hereinafter also referred to as "steering bogie").
  • a bogie frame of the steering bogie disclosed in Patent Literature 1 is formed of two frame bodies which are joined with each other by way of an elastic element.
  • a first frame body of the two frame bodies includes a right side beam and a first cross beam.
  • a second frame body includes a left side beam and a second cross beam.
  • the bolster is supported by a pair of right and left side bearings. Further, to connect the bolster and each of the two frame bodies with each other, the bolster is also supported by a pair of right and left center plates. In such a configuration, the two side bearings and the two center plates receive a load from the car body. Accordingly, when the steering bogie traverses a curved railroad track, the bolster generates large rotational resistance with respect to the bogie frame (two frame bodies). Therefore, particularly when a railroad car runs through a section from an exit transition curve section to a straight section, it is difficult for the wheelsets to return to a normal orientation.
  • the wheelsets are deviated from the center position of the track so that the wheel load is unbalanced. Further, the leading wheelset comes into contact with the rails in a state of being directed toward the inner track, thus generating a lateral force.
  • Patent Literature 1 International Application Publication No. WO2016/017103
  • the present invention has been under such circumstances. It is one objective of the present invention to provide a railroad car bogie and a railroad car which allows self-steering, thus sufficiently reducing a lateral force at a curved railroad track and, at the same time, sufficiently suppressing fluctuation in wheel load.
  • a railroad car bogie is a bogie which includes wheelsets on forward and rearward sides of the bogie, and which allows self-steering of the wheelsets.
  • the bogie includes: a first frame body including a side beam on a right side, and a first cross beam integrally formed with the side beam on the right side; a second frame body including a side beam on a left side, and a second cross beam integrally formed with the side beam on the left side; axle boxes respectively attached to right and left end portions of the respective wheelsets; axle box suspensions configured to elastically support the respective axle boxes; and a bolster disposed above the first cross beam or the second cross beam.
  • the first frame body and the second frame body support each other, and are slidable in a longitudinal direction.
  • the axle box suspension on a forward right side supports the axle box on the forward right side with a fore end portion of the side beam of the first frame body, and the axle box on the forward right side is joined to the second frame body.
  • the axle box suspension on a forward left side supports the axle box on the forward left side with a fore end portion of the side beam of the second frame body, and the axle box on the forward left side is joined to the first frame body.
  • the axle box suspension on a rearward right side supports the axle box on the rearward right side with a rear end portion of the side beam of the first frame body, and the axle box on the rearward right side is joined to the first frame body.
  • the axle box suspension on a rearward left side supports the axle box on the rearward left side with a rear end portion of the side beam of the second frame body, and the axle box on the rearward left side is joined to the second frame body.
  • the bogie further includes: a core receiver configured to support a center portion of the bolster, the core receiver being provided on an upper surface of the first cross beam or the second cross beam; a first connecting portion configured to connect the first cross beam and the bolster with each other, the first connecting portion being disposed on a right side of the core receiver; and a second connecting portion configured to connect the second cross beam and the bolster with each other, the second connecting portion being disposed on a left side of the core receiver.
  • the first connecting portion includes a first shaft portion and a first hole portion, the first shaft portion protruding in a vertical direction from either one of the first cross beam or the bolster, and the first hole portion being formed on the other of the first cross beam or the bolster, and accommodating a distal end portion of the first shaft portion.
  • the second connecting portion includes a second shaft portion and a second hole portion, the second shaft portion protruding in the vertical direction from either one of the second cross beam or the bolster, and the second hole portion being formed on the other of the second cross beam or the bolster, and accommodating a distal end portion of the second shaft portion.
  • a railroad car includes: the above-mentioned bogie; a car body; and a pair of right and left air springs disposed on the bolster, and configured to support the car body.
  • the railroad car bogie and the railroad car of the present invention allow self-steering, thus sufficiently reducing a lateral force at a curved railroad track and, at the same time, sufficiently suppressing fluctuation in wheel load.
  • inventors of the present invention have made extensive studies by performing numerical analysis supposing that a railroad car runs through a curved railroad track consisting of five sections (an entry straight section, an entry transition curve section, a steady curve section, an exit transition curve section, and an exit straight section). As a result, the inventors of the present invention acquired the following findings.
  • the present invention has been completed based on the above-mentioned finding.
  • the railroad car bogie is a bogie which includes wheelsets on forward and rearward sides of the bogie, and which allows self-steering of the wheelsets.
  • the bogie includes a first frame body, a second frame body, four axle boxes, four axle box suspensions, and a bolster.
  • the first frame body includes a side beam on a right side and a first cross beam integrally formed with the right side beam.
  • the second frame body includes a side beam on a left side and a second cross beam integrally formed with the left side beam.
  • the axle boxes are respectively attached to right and left end portions of the respective wheelsets.
  • the axle box suspensions elastically support the respective axle boxes.
  • the bolster is disposed above the first cross beam or the second cross beam.
  • the first frame body and the second frame body support each other, and are slidable in a longitudinal direction.
  • the axle box suspension on the forward right side supports the axle box on the forward right side with a fore end portion of the side beam of the first frame body, and the axle box on the forward right side is joined to the second frame body.
  • the axle box suspension on the forward left side supports the axle box on the forward left side with a fore end portion of the side beam of the second frame body, and the axle box on the forward left side is joined to the first frame body.
  • the axle box suspension on the rearward right side supports the axle box on the rearward right side with a rear end portion of the side beam of the first frame body, and the axle box on the rearward right side is joined to the first frame body.
  • the axle box suspension on the rearward left side supports the axle box on the rearward left side with a rear end portion of the side beam of the second frame body, and the axle box on the rearward left side is joined to the second frame body.
  • the bogie further includes a core receiver, a first connecting portion, and a second connecting portion.
  • the core receiver is provided on an upper surface of the first cross beam or the second cross beam, and supports a center portion of the bolster.
  • the first connecting portion is disposed on the right side of the core receiver, and connects the first cross beam and the bolster with each other.
  • the second connecting portion is disposed on the left side of the core receiver, and connects the second cross beam and the bolster with each other.
  • the first connecting portion includes a first shaft portion and a first hole portion.
  • the first shaft portion protrudes in a vertical direction from either one of the first cross beam or the bolster.
  • the first hole portion is formed on the other of the first cross beam or the bolster, and accommodates a distal end portion of the first shaft portion.
  • the second connecting portion includes a second shaft portion, and a second hole portion.
  • the second shaft portion protrudes in the vertical direction from either one of the second cross beam or the bolster.
  • the second hole portion is formed on the other of the second cross beam or the bolster, and accommodates a distal end portion of the second shaft portion.
  • each axle box suspension includes a link extending from the axle box along a longitudinal direction.
  • the first cross beam includes a first extending portion extending toward the fore end portion of the side beam of the second frame body.
  • the second cross beam includes a second extending portion extending toward the fore end portion of the side beam of the first frame body.
  • the axle box suspension on the forward right side supports the axle box on the forward right side with the fore end portion of the side beam of the first frame body, and the link extending from the axle box on the forward right side is joined to the second extending portion of the second frame body.
  • the axle box suspension on the forward left side supports the axle box on the forward left side with the fore end portion of the side beam of the second frame body, and the link extending from the axle box on the forward left side is joined to the first extending portion of the first frame body.
  • the axle box suspension on the rearward right side supports the axle box on the rearward right side with the rear end portion of the side beam of the first frame body, and the link extending from the axle box on the rearward right side is joined to the side beam of the first frame body.
  • the axle box suspension on the rearward left side supports the axle box on the rearward left side with the rear end portion of the side beam of the second frame body, and the link extending from the axle box on the rearward left side is joined to the side beam of the second frame body.
  • first cross beam of the first frame body and the second cross beam of the second frame body are made to overlap each other in the vertical direction in a non-contact manner.
  • either of the first cross beam or the second cross beam may be disposed on the upper side.
  • the first cross beam and the second cross beam may be disposed adjacent to each other in the longitudinal direction.
  • a distal end portion of the first cross beam is inserted into an opening formed in the side beam of the second frame body.
  • a distal end portion of the second cross beam is inserted into an opening formed in the side beam of the first frame body.
  • the first frame body and the second frame body can support each other in a slidable manner in the longitudinal direction.
  • the first frame body and the second frame body may be supported each other such that the distal end portion of the first cross beam is placed on the side beam of the second frame body, and the distal end portion of the second cross beam is placed on the side beam of the first frame body.
  • the railroad car according to the embodiment of the present invention includes the above-mentioned bogie, a car body, and a pair of right and left air springs disposed on the bolster, and support the car body.
  • the bogie and the car provided with the bogie of this embodiment, when the car runs through a curved railroad track, relative yawing displacement occurs between the bolster (car body) and the bogie frame (the first frame body and the second frame body) according to the curved railroad track. Due to such relative yawing displacement, relative longitudinal movement occurs between the first frame body and the second frame body, thus allowing self-steering of the wheelsets on the forward and rearward sides corresponding to the relative longitudinal movement. Further, the bolster is supported at one point by the core receiver and hence, the bolster can smoothly rotate with respect to the bogie frame in the yawing direction. Accordingly, a lateral force at a curved railroad track can be sufficiently reduced.
  • the respective axle boxes are elastically supported on the bogie frame (the first frame body and the second frame body) by the respective corresponding axle box suspensions. Further, the first frame body and the second frame body are allowed to relatively rotate in the pitching direction. Accordingly, in a transition curve section, relative rolling displacement between the wheelset on the forward side and the wheelset on the rearward side which occurs with the bending of the track can be allowed. Therefore, it is possible to suppress fluctuation in wheel load in the transition curve section.
  • the bolster and the bogie frame are connected with each other in a flexible manner by the first connecting portion and the second connecting portion and hence, when the railroad car runs through a section from an exit transition curve section to a straight section, the bolster does not restrain relative longitudinal movement between the first frame body and the second frame body. For this reason, the wheelset on the forward side and the wheelset on the rearward side can smoothly return to normal orientation. Accordingly, generation of a lateral force and fluctuation in wheel load in a transition curve section can be sufficiently suppressed.
  • the above-mentioned bogie include: a first elastic member disposed in a gap formed between the distal end portion of the first shaft portion and the first hole portion; and a second elastic member disposed in a gap formed between the distal end portion of the second shaft portion and the second hole portion.
  • the first elastic member may be a first rubber bush
  • the second elastic member may be a second rubber bush.
  • the above-mentioned bogie further includes side bearings respectively provided on an upper surface of the side beam of the first frame body and an upper surface of the side beam of the second frame body, the side bearings opposedly facing right and left end portions of the bolster with gaps formed between the side bearings and the bolster.
  • the rotation of the bolster can be restricted.
  • the above-mentioned bogie may adopt the following configuration.
  • the above-mentioned bogie includes tread brake devices which correspond to the respective right and left wheels of the respective wheelsets, and traction motors and gear units configured to drive the respective wheelsets.
  • the tread brake device on the forward left side and the tread brake device on the rearward right side are held by the first cross beam, and the tread brake device on the forward right side and the tread brake device on the rearward left side are held by the second cross beam.
  • the traction motor and the gear unit on the forward are held by either one of the first cross beam or the second cross beam, and the traction motor and the gear unit on the rearward sides are held by either one of the first cross beam or the second cross beam.
  • the above-mentioned bogie may be utilized as a drive bogie.
  • FIG. 1 is a top plan view schematically showing one example of the railroad car provided with a bogie according to the embodiment of the present invention.
  • FIG. 2 is a top plan view showing a specific example of a bogie frame used for the railroad car shown in FIG. 1 .
  • FIG. 3A is a right side view of the bogie shown in FIG. 1
  • FIG. 3B is a left side view of the bogie.
  • FIG. 4 is a cross-sectional view of the railroad car shown in FIG. 1 as viewed from a forward surface side.
  • the railroad car shown in FIG. 1 to FIG. 4 is a car which uses bolster-equipped bogies each of which includes a bolster 56 between a car body 50 and the bogie.
  • the car includes one bogie each on the forward and rearward sides of the car body 50.
  • the bogie of this embodiment includes a first frame body 10 and a second frame body 20, which are separately independent from each other, as a bogie frame.
  • the bogie frame is formed by combining the first frame body 10 and the second frame body 20 with each other.
  • constitutional elements of the first frame body 10 are indicated by bold solid lines
  • constitutional elements of the second frame body 20 are indicated by bold dotted lines.
  • the first frame body 10 includes a right side beam 11 and a first cross beam 12.
  • the right side beam 11 and the first cross beam 12 are firmly joined with each other by welding, thus formed into an integral body.
  • the second frame body 20 includes a left side beam 21 and a second cross beam 22.
  • the left side beam 21 and the second cross beam 22 are firmly joined with each other by welding, thus formed into an integral body.
  • the first cross beam 12 of the first frame body 10 includes a first extending portion 13 which extends toward a fore end portion 21a of the side beam 21 of the second frame body 20 (see FIG. 1 and FIG. 3B ).
  • the first extending portion 13 extends around to an area below the side beam 21 of the second frame body 20, and is disposed behind the fore end portion 21a of the side beam 21. That is, the first extending portion 13, which extends from the first cross beam 12 integrally formed with the right side beam 11, reaches the position of the left side beam 21 disposed on the side opposite to the right side beam 11.
  • the second cross beam 22 of the second frame body 20 includes a second extending portion 23 which extends toward a fore end portion 11a of the side beam 11 of the first frame body 10 (see FIG. 1 and FIG. 3A ).
  • the second extending portion 23 extends around to an area below the side beam 11 of the first frame body 10, and is disposed behind the fore end portion 11a of the side beam 11. That is, the second extending portion 23, which extends from the second cross beam 22 integrally formed with the left side beam 21, reaches the position of the right side beam 11 disposed on the side opposite to the left side beam 21.
  • the first frame body 10 and the second frame body 20 support each other, and are slidable in a longitudinal direction.
  • the first cross beam 12 of the first frame body 10 and the second cross beam 22 of the second frame body 20 are made to overlap each other in the vertical direction in a non-contact manner.
  • FIG. 2 shows a mode where the first cross beam 12 is disposed above the second cross beam 22.
  • an opening 21c is formed in the side beam 21 (left side beam 21) of the second frame body 20 at a center portion in the longitudinal direction, and the opening 21c penetrates the side beam 21 in the lateral direction.
  • a distal end portion of the first cross beam 12 of the first frame body 10 is inserted into the opening 21c.
  • a wearing plate 37 made of metal is provided in the opening 21c. The distal end portion of the first cross beam 12 is placed on the wearing plate 37.
  • an opening 11c is formed in the side beam 11 (right side beam 11) of the first frame body 10 at a center portion in the longitudinal direction, and the opening 11c penetrates the side beam 11 in the lateral direction.
  • a distal end portion of the second cross beam 22 of the second frame body 20 is inserted into the opening 11c.
  • a wearing plate 37 made of metal is provided in the opening 11c.
  • the distal end portion of the second cross beam 22 is placed on the wearing plate 37.
  • Such a bogie frame formed by combining the first frame body 10 and the second frame body 20 with each other, includes wheelsets 31A and 31B respectively disposed on the forward and rearward sides of the bogie frame.
  • the wheelset 31A includes wheels 32A and 32B on the right and left sides thereof, and the wheelset 31B includes wheels 32C and 32D on the right and left sides thereof.
  • axle boxes 33A and 33B are attached to both right and left end portions of the wheelset 31A, and axle boxes 33C and 33D are attached to both right and left end portions of the wheelset 31B.
  • the respective axle boxes 33A, 33B, 33C and 33D are elastically supported on the bogie frame (the first frame body 10 and the second frame body 20) by the respective corresponding axle box suspensions.
  • the respective axle box suspensions are general-purpose components. Referring to FIG. 1 , FIG. 3A and FIG. 3B , the respective axle box suspensions include links 34A, 34B, 34C and 34D which extend along the longitudinal direction from the respective corresponding axle boxes 33A, 33B, 33C and 33D.
  • Each axle box suspension shown in FIG. 3A and FIG. 3B is a so-called mono-link type axle box suspension.
  • the mono-link type axle box suspension is an axle box suspension of a type which joins an axle box and a bogie frame with each other by one link having both end portions thereof into which rubber bushes are inserted.
  • the axle box suspension on the forward right side supports the axle box 33A on the forward right side with the fore end portion 11a of the side beam 11 of the first frame body 10.
  • a coil spring 35 is disposed between the axle box 33A and the fore end portion 11a of the side beam 11.
  • a laminated rubber may be disposed in addition to the coil spring 35, or in place of the coil spring 35.
  • the laminated rubber is a component formed by alternately laminating a thin rubber sheet and a steel plate.
  • the link 34A of the axle box suspension includes rubber bushes 36a and 36b at both fore and rear end portions. The fore end portion of the link 34A is coupled to the axle box 33A by way of the rubber bush 36a, and the rear end portion of the link 34A is coupled to the second extending portion 23 of the second frame body 20 by way of the rubber bush 36b.
  • the axle box suspension on the forward left side supports the axle box 33B on the forward left side with the fore end portion 21a of the side beam 21 of the second frame body 20.
  • the support structure, where the axle box 33B is supported by the fore end portion 21a of the side beam 21, is substantially equal to that in the above-mentioned axle box suspension on the forward right side.
  • the link 34B of the axle box suspension on the forward left side includes rubber bushes 36a and 36b at both fore and rear end portions.
  • the fore end portion of the link 34B is coupled to the axle box 33B by way of the rubber bush 36a, and the rear end portion of the link 34B is coupled to the first extending portion 13 of the first frame body 10 by way of the rubber bush 36b.
  • the axle box suspension on the rearward right side supports the axle box 33C on the rearward right side with a rear end portion 11b of the side beam 11 of the first frame body 10.
  • the support structure, where the axle box 33C is supported by the rear end portion 11b of the side beam 11, is substantially equal to that in the above-mentioned axle box suspension on the forward right side.
  • a first protruding portion 15 is formed on a lower surface of the side beam 11 of the first frame body 10.
  • the first protruding portion 15 protrudes from a position in front of the rear end portion 11b of the side beam 11.
  • the link 34C of the axle box suspension on the rearward right side includes rubber bushes 36a and 36b at both fore and rear end portions.
  • the rear end portion of the link 34C is coupled to the axle box 33C by way of the rubber bush 36a, and the fore end portion of the link 34C is coupled to the first protruding portion 15 of the first frame body 10 by way of the rubber bush 36b.
  • the axle box suspension on the rearward left side supports the axle box 33D on the rearward left side with a rear end portion 21b of the side beam 21 of the second frame body 20.
  • the support structure, where the axle box 33D is supported by the rear end portion 21b of the side beam 21, is substantially equal to that in the above-mentioned axle box suspension on the forward right side.
  • a second protruding portion 25 is formed on a lower surface of the side beam 21 of the second frame body 20. The second protruding portion 25 protrudes from a position in front of the rear end portion 21b of the side beam 21.
  • the link 34D of the axle box suspension on the rearward left side includes rubber bushes 36a and 36b at both fore and rear end portions.
  • the rear end portion of the link 34D is coupled to the axle box 33D by way of the rubber bush 36a, and the fore end portion of the link 34D is coupled to the second protruding portion 25 of the second frame body 20 by way of the rubber bush 36b.
  • the above-mentioned bogie frame (the first frame body 10 and the second frame body 20) includes tread brake devices 40A and 40B which respectively correspond to the right and left wheels 32A and 32B of the wheelset 31A, and tread brake devices 40C and 40D which respectively correspond to the right and left wheels 32C and 32D of the wheelset 31B.
  • the respective tread brake devices 40A, 40B, 40C and 40D include brake shoes which opposedly face treads of the respective corresponding wheels 32A, 32B, 32C and 32D.
  • the tread brake device 40A on the forward right side is held by the second cross beam 22 of the second frame body 20 at a position immediately rearward of the wheel 32A on the forward right side.
  • the tread brake device 40B on the forward left side is held by the first cross beam 12 of the first frame body 10 at a position immediately rearward of the wheel 32B on the forward left side.
  • the tread brake device 40C on the rearward right side is held by the first cross beam 12 of the first frame body 10 at a position immediately forward of the wheel 32C on the rearward right side.
  • the tread brake device 40D on the rearward left side is held by the second cross beam 22 of the second frame body 20 at a position immediately forward of the wheel 32D on the rearward left side.
  • the tread brake device 40A on the forward right side and the tread brake device 40D on the rearward left side are immobilized to brake device seats (not shown in the drawing) which are respectively formed on the second cross beam 22 of the second frame body 20.
  • the tread brake device 40B on the forward left side and the tread brake device 40C on the rearward right side are immobilized to brake device seats (not shown in the drawing) which are respectively formed on the first cross beam 12 of the first frame body 10.
  • the above-mentioned bogie frame (the first frame body 10 and the second frame body 20) includes a traction motor 41A, a gear unit 42A, and a joint 43A so as to drive the wheelset 31A, and includes a traction motor 41B, a gear unit 42B, and a joint 43B so as to drive the wheelset 31B.
  • All of the traction motors 41A and 41B, the gear units 42A and 42B, and the joints 43A and 43B are general-purpose components.
  • the gear unit 42A, 42B includes a gear fitted on an axle of the wheelset 31A, 31B, and a pinion which meshes with the gear.
  • the joints 43A, 43B are gear couplings or flexible couplings.
  • the joint 43A, 43B respectively connects a main shaft of the traction motor 41A, 41B and a pinion shaft of the gear unit 42A, 42B with each other, and transmits a rotation torque of the main shaft of the traction motor 41A, 41B to the pinion shaft of the gear unit 42A, 42B.
  • the joint 43A, 43B respectively absorbs relative displacement between the main shaft of the traction motor 41A, 41B and the pinion shaft of the gear unit 42A, 42B.
  • the gear unit 42A on the forward side is disposed on the wheelset 31A on the forward side at a position adjacent to the wheel 32B on the forward left side.
  • a suspension tool 44A is provided on the first cross beam 12 of the first frame body 10 at a position adjacent to the tread brake device 40B on the forward left side.
  • the gear unit 42A on the forward side is suspended by the suspension tool 44A, thus being held in a swingable manner.
  • the gear unit 42B on the rearward side is disposed on the wheelset 31B on the rearward side at a position adjacent to the wheel 32C on the rearward right side.
  • a suspension tool 44B is provided on the first cross beam 12 of the first frame body 10 at a position adjacent to the tread brake device 40C on the rearward right side.
  • the gear unit 42B on the rearward side is suspended by the suspension tool 44B, thus being held in a swingable manner.
  • the gear unit 42A on the forward side is mounted on a suspension tool seat 17a, which extends forward from the first cross beam 12 of the first frame body 10, by way of the suspension tool 44A.
  • the gear unit 42B on the rearward side is mounted on a suspension tool seat 17b, which extends rearward from the first cross beam 12 of the first frame body 10, by way of the suspension tool 44B.
  • the traction motor 41A is held on the first cross beam 12 of the first frame body 10 at a position adjacent to the suspension tool 44A on the forward side
  • the traction motor 41B is held on the first cross beam 12 of the first frame body 10 at a position adjacent to the suspension tool 44B on the rearward side.
  • the traction motor 41A on the forward side is mounted on a traction motor seat 16a extending forward from the first cross beam 12 of the first frame body 10.
  • the traction motor 41B on the rearward side is mounted on a traction motor seat 16b extending rearward from the first cross beam 12 of the first frame body 10.
  • the bogie includes the bolster 56 above the first cross beam 12 of the first frame body 10.
  • a core receiver 30 is disposed on an upper surface of the first cross beam 12 at the center portion in the lateral direction.
  • the center portion of the bolster 56 in the lateral direction is supported by the core receiver 30.
  • the core receiver 30 is formed of a pedestal 30a which has a frusto-conical shape, and a projecting portion 30b which opposedly faces the pedestal 30a and has an inverted frusto-conical shape.
  • the pedestal 30a is immobilized to the upper surface of the first cross beam 12, and the projecting portion 30b is immobilized to a lower surface of the bolster 56.
  • the projecting portion 30b and the pedestal 30a are simply in contact with each other.
  • the bolster 56 is allowed to rotate with respect to the bogie frame (first cross beam 12) in the yawing direction about the core receiver 30.
  • the bolster 56 is also allowed to rotate with respect to the bogie frame (first cross beam 12) in the rolling direction about the core receiver 30.
  • the bogie of this embodiment includes a pair of right and left side bearings 57, 57 between the bogie frame (the first frame body 10 and the second frame body 20) and the bolster 56.
  • the side bearings 57, 57 are respectively disposed on the side beam 11 of the first frame body 10 and on the side beam 21 of the second frame body 20.
  • Each side bearing 57 is formed of a pedestal 57a which has a truncated pyramid shape, and a projecting portion 57b which opposedly faces the pedestal 57a and has an inverted truncated pyramid shape.
  • the pedestals 57a, 57a are immobilized on upper surfaces of the side beams 11 and 21, respectively, and the projecting portions 57b, 57b are immobilized on a lower surface of the bolster 56.
  • the projecting portion 57b, 57b and the pedestal 57a, 57a are not in contact with each other.
  • the projecting portion 57b and the pedestal 57a for one of the side bearing 57 on the right side or the side bearing 57 on the left side come into contact with each other, thus restricting further rotation of the bolster 56.
  • a pair of right and left air springs 51, 51 are disposed on an upper surface of the bolster 56.
  • the car body 50 is joined to the bolster 56 by these air springs 51, 51. That is, the car body 50 and the bolster 56 are formed into an integral body by way of the air springs 51, 51.
  • a pair of right and left connecting portions 52A and 52B are disposed between the bolster 56 and the bogie frame (the first frame body 10 and the second frame body 20).
  • the first connecting portion 52A of the two connecting portions 52A and 52B is disposed on the right side of the core receiver 30, and connects the first cross beam 12 and the bolster 56 with each other.
  • the second connecting portion 52B is disposed on the left side of the core receiver 30, and connects the second cross beam 22 and the bolster 56 with each other.
  • the first connecting portion 52A includes a first shaft portion 53A and a first hole portion 54A.
  • the first shaft portion 53A protrudes downward from the lower surface of the bolster 56.
  • the first hole portion 54A is formed in the first cross beam 12 at the position on an extension of the first shaft portion 53A.
  • a distal end portion of the first shaft portion 53A is accommodated in the first hole portion 54A.
  • a first rubber bush 55A having a ring shape is fitted in a gap which has a toroidal shape and is formed between the distal end portion of the first shaft portion 53A and the first hole portion 54A. That is, the bolster 56 is connected to the first cross beam 12 (first frame body 10) by way of the first shaft portion 53A and the first rubber bush 55A.
  • the second connecting portion 52B includes a second shaft portion 53B and a second hole portion 54B.
  • the second shaft portion 53B protrudes downward from the lower surface of the bolster 56.
  • the second cross beam 22 includes a second projecting piece portion 24 which extends to the upper surface of the first cross beam 12.
  • the second hole portion 54B is formed in the second projecting piece portion 24 at the position on an extension of the second shaft portion 53B.
  • a distal end portion of the second shaft portion 53B is accommodated in the second hole portion 54B.
  • a second rubber bush 55B having a ring shape is fitted in a gap which has a toroidal shape and is formed between the distal end portion of the second shaft portion 53B and the second hole portion 54B. That is, the bolster 56 is connected to the second cross beam 22 (second frame body 20) by way of the second shaft portion 53B and the second rubber bush 55B.
  • the bolster 56 receives a load from the car body 50 by way of the air springs 51 and 51.
  • the core receiver 30 which supports the bolster 56 receives the load from the bolster 56.
  • the first connecting portion 52A and the second connecting portion 52B which connect the bolster 56 (car body 50) and the bogie frame (the first frame body 10 and the second frame body 20) with each other, allow relative displacement between the bolster 56 and the bogie frame in a flexible manner.
  • FIG. 5A and FIG. 5B are top plan views schematically showing situations where the railroad car of this embodiment shown in FIG. 1 to FIG. 4 runs through curved railroad tracks.
  • FIG. 5A shows the case of a left-turning curved railroad track
  • FIG. 5B shows the case of a right-turning curved railroad track.
  • behavior of the respective constitutional elements when the car of this embodiment runs through a curved railroad track is as follows.
  • the bolster 56 is connected to the first frame body 10 (first cross beam 12) by way of the first connecting portion 52A disposed on the right side of the core receiver 30, and is connected to the second frame body 20 (second cross beam 22) by way of the second connecting portion 52B disposed on the left side of the core receiver 30. Accordingly, when the bolster 56 yaws rightward, a rearward force acts on the first frame body 10 through the first connecting portion 52A on the right side, and a forward force acts on the second frame body 20 through the second connecting portion 52B on the left side. That is, forces in directions opposite to each other in the longitudinal direction act on the first frame body 10 and the second frame body 20.
  • the first frame body 10 and the second frame body 20 support each other in a slidable manner in the longitudinal direction. Accordingly, the above-mentioned forces individually act on the first frame body 10 and the second frame body 20 so that the first frame body 10 moves rearward, and the second frame body 20 moves forward. In short, relative longitudinal movement occurs between the first frame body 10 and the second frame body 20.
  • axle boxes 33A and 33C which are elastically supported on the fore and rear end portions 11a and 11b of the side beam 11 of the first frame body 10 respectively, display the following behavior.
  • the axle box 33A on the forward right side is supported on the first frame body 10 and, at the same time, is joined to the second extending portion 23 of the second frame body 20, which is different from the first frame body 10, by way of the link 34A.
  • the axle box 33A on the forward right side receives a forward force in the direction opposite to the moving direction of the first frame body 10 through the link 34A, thus moving forward.
  • axle box 33C on the rearward right side is supported on the first frame body 10 and, at the same time, is joined to the first protruding portion 15 of the same first frame body 10 by way of the link 34C. With such a configuration, the axle box 33C on the rearward right side moves rearward together with the first frame body 10.
  • axle boxes 33B and 33D which are elastically supported on the fore and rear end portions 21a and 21b of the side beam 21 of the second frame body 20 respectively, display the following behavior.
  • the axle box 33B on the forward left side is supported on the second frame body 20 and, at the same time, is joined to the first extending portion 13 of the first frame body 10, which is different from the second frame body 20, by way of the link 34B.
  • the axle box 33B on the forward left side receives a rearward force in the direction opposite to the moving direction of the second frame body 20 through the link 34B, thus moving rearward.
  • axle box 33D on the rearward left side is supported on the second frame body 20 and, at the same time, is joined to the second protruding portion 25 of the same second frame body 20 by way of the link 34D. With such a configuration, the axle box 33D on the rearward left side moves forward together with the second frame body 20.
  • the tread brake device 40A on the forward right side is held by the second cross beam 22 of the second frame body 20, thus moving forward together with the second frame body 20.
  • the tread brake device 40B on the forward left side is held by the first cross beam 12 of the first frame body 10, thus moving rearward together with the first frame body 10.
  • An amount of forward movement of the tread brake device 40A on the forward right side is substantially equal to an amount of forward movement of the wheel 32A.
  • An amount of rearward movement of the tread brake device 40B on the forward left side is substantially equal to an amount of rearward movement of the wheel 32B. Accordingly, distances in the longitudinal direction between the respective wheels 32A and 32B on the forward side and the respective corresponding tread brake devices 40A and 40B are constant regardless of steering.
  • the tread brake device 40C on the rearward right side is held by the first cross beam 12 of the first frame body 10, thus moving rearward together with the first frame body 10.
  • the tread brake device 40D on the rearward left side is held by the second cross beam 22 of the second frame body 20, thus moving forward together with the second frame body 20.
  • the wheel 32C on the rearward right side moves rearward, and the wheel 32D on the rearward left side moves forward.
  • An amount of rearward movement of the tread brake device 40C on the rearward right side is substantially equal to an amount of rearward movement of the wheel 32C.
  • An amount of forward movement of the tread brake device 40D on the rearward left side is substantially equal to an amount of forward movement of the wheel 32D. Accordingly, distances in the longitudinal direction between the respective wheels 32C and 32D on the rearward side and the respective corresponding tread brake devices 40C and 40D are constant regardless of steering.
  • the distances in the longitudinal direction between the respective wheels 32A, 32B, 32C and 32D and the respective corresponding tread brake devices 40A, 40B, 40C and 40D are constant regardless of steering. Accordingly, sufficient braking performance can be always maintained.
  • the traction motor 41A on the forward side and the traction motor 41B on the rearward side are held by the first cross beam 12 of the first frame body 10, thus moving rearward together with the first frame body 10.
  • the gear unit 42A on the forward side is mounted on the wheelset 31A on the forward side at a position adjacent to the wheel 32B on the forward left side.
  • the gear unit 42B on the rearward side is mounted on the wheelset 31B on the rearward side at a position adjacent to the wheel 32C on the rearward right side. Accordingly, with the displacement of the wheelset 31A on the forward side and the wheelset 31B on the rearward side as described above, the gear unit 42A on the forward side and the gear unit 42B on the rearward side move rearward.
  • An amount of rearward movement of the traction motor 41A on the forward side and an amount of rearward movement of the traction motor 41B on the rearward side slightly differ from an amount of rearward movement of the gear unit 42A on the forward side and an amount of rearward movement of the gear unit 42B on the rearward side.
  • the bolster 56 assumes a state opposite to that in the above-mentioned left-turning curved railroad track, that is, a state where the bolster 56 yaws leftward with respect to the bogie.
  • a forward force acts on the first frame body 10 through the first connecting portion 52A on the right side
  • a rearward force acts on the second frame body 20 through the second connecting portion 52B on the left side.
  • the respective axle boxes 33A, 33B, 33C and 33D are elastically supported on the first frame body 10 and the second frame body 20 by the respective corresponding axle box suspensions. Further, the first frame body 10 and the second frame body 20 are allowed to relatively rotate in the pitching direction about an axis which connects two supporting points with each other. Accordingly, in a transition curve section, relative rolling displacement between the wheelset 31A on the forward side and the wheelset 31B on the rearward side which occurs with the bending of the track can be allowed. Therefore, it is possible to suppress fluctuation in wheel load in the transition curve section.
  • the bolster 56 (car body 50) and the bogie frame (the first frame body 10 and the second frame body 20) are connected with each other in a flexible manner by the first connecting portion 52A and the second connecting portion 52B and hence, when the railroad car runs through a section from an exit transition curve section to a straight section, the bolster 56 does not restrain relative longitudinal movement between the first frame body 10 and the second frame body 20. For this reason, the wheelset 31A on the forward side and the wheelset 31B on the rearward side can smoothly return to normal orientation. Accordingly, generation of a lateral force and fluctuation in wheel load in a transition curve section can be sufficiently suppressed.
  • the present invention is not limited to the above-mentioned embodiment, and various modifications are conceivable without departing from the gist of the present invention.
  • the mono-link type axle box suspension is adopted as the axle box suspension.
  • a so-called axle beam type axle box suspension, or a support plate (leaf spring) type axle box suspension may be adopted.
  • the axle beam type axle box suspension is an axle box suspension of a type where an arm extends in the longitudinal direction while forming an integral body with an axle box, a rubber bush is inserted into a distal end portion of the arm, and the arm is joined to a bogie frame.
  • the arm extending from the axle box corresponds to the link of the axle box suspension in the above-mentioned embodiment.
  • the leaf spring type axle box suspension is an axle box suspension of a type which joins an axle box and a bogie frame with each other by two leaf springs which extend in the longitudinal direction parallel to each other.
  • the leaf springs extending from the axle box correspond to the link of the axle box suspension in the above-mentioned embodiment.
  • the model of the Example satisfies all conditions in this embodiment.
  • a bolster is supported by side bearings, and the bolster and a bogie frame are connected with each other by a center plate.
  • a bolster and a bogie frame are connected with each other by a shaft portion and a hole portion (including rubber bush) in the same manner as the Example, however the bolster is supported by side bearings in the same manner as the Conventional Example.
  • a bolster is supported by a core receiver in the same manner as the Example, however the bolster and a bogie frame are connected with each other by a center plate in the same manner as the Conventional Example.
  • FIG. 6 is a view showing fluctuation in lateral force at a curved railroad track.
  • FIG. 7 is a view showing displacement in a lateral direction of a wheelset at the curved railroad track.
  • the present invention is applicable to a variety of railroad cars having a bolster, and is effectively applicable particularly to a railroad car for subways which have many curved railroad tracks.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Handcart (AREA)

Claims (7)

  1. Bogie pour wagon de chemin de fer qui comprend des trains de roues sur les côtés avant et arrière du bogie, et qui permet la direction automatique des trains de roues, le bogie comprenant :
    un premier corps de bâti (10) comprenant une poutre latérale sur un côté droit (11), et une première traverse (12) formée de manière solidaire avec la poutre latérale du côté droit (11) ;
    un second corps de bâti (20) comprenant une poutre latérale sur un côté gauche (21) et une seconde traverse (22) formée de manière solidaire avec la poutre latérale du côté gauche (21) ;
    des boîtes à essieu (33A, 33B, 33C, 33D) respectivement fixées sur les parties d'extrémité droite et gauche des trains de roues (31A, 31B) respectifs ;
    des suspensions de boîte d'essieu configurées pour supporter, de manière élastique, les boîtes d'essieu (33A, 33B, 33C, 33D) respectives ; et
    une traverse danseuse (56) disposée au-dessus de la première traverse (12) ou de la seconde traverse (22), dans lequel :
    le premier corps de bâti (10) et le second corps de bâti (20) se supportent l'un l'autre et peuvent coulisser dans une direction longitudinale,
    la suspension de boîte d'essieu sur un côté avant droit supporte la boîte d'essieu sur le côté avant droit (33A) avec une partie d'extrémité avant (11a) de la poutre latérale (11) du premier corps de bâti (10), et la boîte d'essieu du côté avant droit (33A) est assemblée au second corps de bâti (20),
    la suspension de boîte d'essieu du côté avant gauche supporte la boîte d'essieu du côté avant gauche (33B) avec une partie d'extrémité avant (21a) de la poutre latérale (21) du second corps de bâti (20), et la boîte d'essieu du côté avant gauche (33B) est assemblée au premier corps de bâti (10),
    la suspension de boîte d'essieu du côté arrière droit supporte la boîte d'essieu du côté arrière droit (33C) avec une partie d'extrémité arrière (11b) de la poutre latérale (11) du premier corps de bâti (10), et la boîte d'essieu du côté arrière droit (33C) est assemblée au premier corps de bâti (10),
    la suspension de boîte d'essieu du côté arrière gauche supporte la boîte d'essieu du côté arrière gauche (33D) avec une partie d'extrémité arrière (21b) de la poutre latérale (21) du second corps de bâti (20), et la boîte d'essieu du côté arrière gauche (33D) est assemblée au second corps de bâti (20),
    le bogie comprend en outre :
    un dispositif de réception de noyau (30) configuré pour supporter une partie centrale de la traverse danseuse (56), le dispositif de réception de noyau (30) étant prévu sur une surface supérieure de la première traverse (12) ou de la seconde traverse (22) ;
    une première partie de raccordement (52A) configurée pour raccorder la première traverse (12) et la traverse danseuse (56) entre elles, la première partie de raccordement (52A) étant disposée du côté droit du dispositif de réception de noyau (30) ; et
    une seconde partie de raccordement (52B) configurée pour raccorder la seconde traverse (22) et la traverse danseuse (56) entre elles, la seconde partie de raccordement (52B) étant disposée du côté gauche du dispositif de réception de noyau (30),
    la première partie de raccordement (52A) comprend une première partie d'arbre (53A) et une première partie de trou (54A), la première partie d'arbre (53A) faisant saillie dans une direction verticale de l'un parmi la première traverse (12) ou la traverse danseuse (56), et la première partie de trou (54A) étant formée sur l'autre parmi la première traverse (12) ou la traverse danseuse (56) et logeant une partie d'extrémité distale de la première partie d'arbre (53A), et
    la seconde partie de raccordement (52B) comprend une seconde partie d'arbre (53B) et une seconde partie de trou (54B), la seconde partie d'arbre (53B) faisant saillie dans la direction verticale de l'un parmi la seconde traverse (22) ou la traverse danseuse (56), et la seconde partie de trou (54B) étant formée sur l'autre parmi la seconde traverse (22) ou la traverse danseuse (56), et logeant une partie d'extrémité distale de la seconde partie d'arbre (53B).
  2. Bogie pour wagon de chemin de fer selon la revendication 1, dans lequel :
    les suspensions de boîte d'essieu comprennent des liaisons (34A, 34B, 34C, 34D) s'étendant respectivement à partir des boîtes d'essieu (33A, 33B, 33C, 33D) le long d'une direction longitudinale, la première traverse (12) comprend une première partie d'extension (13) s'étendant vers la partie d'extrémité avant (21a) de la poutre latérale (21) du second corps de bâti (20), et la seconde traverse (22) comprend une seconde partie d'extension (23) s'étendant vers la partie d'extrémité avant (11a) de la poutre latérale (11) du premier corps de bâti (10),
    la boîte d'essieu du côté avant droit (33A) et le second corps de bâti (20) sont assemblés entre eux en assemblant la liaison (34A) qui s'étend à partir de la boîte d'essieu du côté avant droit (33A) et la seconde partie d'extension (23) de la seconde traverse (22) entre elles,
    la boîte d'essieu du côté avant gauche (33B) et le premier corps de bâti (10) sont assemblés entre eux en assemblant la liaison (34B) qui s'étend à partir de la boîte d'essieu du côté avant gauche (33B) et la première partie d'extension (13) de la première traverse (12) entre elles,
    la boîte d'essieu du côté arrière droit (33C) et le premier corps de bâti (10) sont assemblés entre eux en assemblant la liaison (34C) qui s'étend à partir de la boîte d'essieu du côté arrière droit (33C), et la poutre latérale (11) du premier corps de bâti (10) entre elles, et
    la boîte d'essieu du côté arrière gauche (33D) et le second corps de bâti (20) sont assemblés entre eux en assemblant la liaison (34D) qui s'étend à partir de la boîte d'essieu du côté arrière gauche (33D), et la poutre latérale (21) du second corps de bâti (20) entre elles.
  3. Bogie pour wagon de chemin de fer selon la revendication 1 ou la revendication 2, le bogie comprenant en outre :
    un premier élément élastique disposé dans un espace formé entre la partie d'extrémité distale de la première partie d'arbre (53A) et la première partie de trou (54A) ; et
    un second élément élastique disposé dans un espace formé entre la partie d'extrémité distale de la seconde partie d'arbre (53B) et la seconde partie de trou (54B).
  4. Bogie pour wagon de chemin de fer selon la revendication 3, dans lequel :
    le premier élément élastique est une première bague en caoutchouc (55A) et le second élément élastique est une seconde bague en caoutchouc (55B).
  5. Bogie pour wagon de chemin de fer selon l'une quelconque des revendications 1 à 4, le bogie comprenant en outre :
    des paliers latéraux (57) respectivement prévus sur une surface supérieure de la poutre latérale (11) du premier corps de bâti (10) et une surface supérieure de la poutre latérale (21) du second corps de bâti (20), les paliers latéraux (57) étant orientés à l'opposé des parties d'extrémité droite et gauche de la traverse danseuse (56) avec des espaces formés entre les paliers latéraux (57) et la traverse danseuse (56).
  6. Bogie pour wagon de chemin de fer selon l'une quelconque des revendications 1 à 5, le bogie comprenant en outre :
    des dispositifs de frein à sabot (40A, 40B) configurés pour correspondre aux roues droite et gauche respectives des trains de roues (31A, 31B) respectifs ; et
    des moteurs de traction (41A, 41B) et des unités d'engrenage (42A, 42B) configurés pour entraîner les trains de roues (31A, 31B) respectifs, dans lequel :
    les dispositifs de frein à sabot (40A, 40B) respectifs du côté avant gauche et du côté arrière droit sont maintenus par la première traverse (12),
    les dispositifs de frein à sabot (40A, 40B) respectifs du côté avant droit et du côté arrière gauche sont maintenus par la seconde traverse (22), et
    les moteurs de traction (41A, 41B) respectifs sur les côtés avant et arrière sont maintenus par l'une parmi la première traverse (12) ou la seconde traverse (22), et les unités d'engrenage (42A, 42B) respectives sur les côtés avant et arrière sont maintenues par l'une parmi la première traverse (12) ou la seconde traverse (22).
  7. Wagon de chemin de fer comprenant : le bogie selon l'une quelconque des revendications 1 à 6 ; un corps de wagon (50) ; et une paire de ressorts pneumatiques droit et gauche (51) disposés sur la traverse danseuse (56) et configurés pour supporter le corps de wagon (50).
EP17833989.1A 2016-07-29 2017-07-06 Bogie de wagon de chemin de fer, et wagon de chemin de fer équipé de ce bogie Active EP3492392B1 (fr)

Applications Claiming Priority (2)

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JP2016150796 2016-07-29
PCT/JP2017/024862 WO2018020980A1 (fr) 2016-07-29 2017-07-06 Bogie pour wagon de chemin de fer, et wagon de chemin de fer équipé de ce bogie

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EP3492392A1 EP3492392A1 (fr) 2019-06-05
EP3492392A4 EP3492392A4 (fr) 2019-08-14
EP3492392B1 true EP3492392B1 (fr) 2021-01-20

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JP (1) JP6624293B2 (fr)
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DE3221755A1 (de) * 1982-06-09 1983-12-15 Krauss-Maffei AG, 8000 München Drehgestell fuer ein schienenfahrzeug
WO2009017114A1 (fr) * 2007-07-30 2009-02-05 The University Of Tokyo Wagon plate-forme autodirecteur
JP5187311B2 (ja) * 2007-09-21 2013-04-24 新日鐵住金株式会社 鉄道車両用操舵台車、鉄道車両および連接車両
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CN109476380B (zh) 2022-03-15
JPWO2018020980A1 (ja) 2019-04-04
WO2018020980A1 (fr) 2018-02-01
JP6624293B2 (ja) 2019-12-25
EP3492392A1 (fr) 2019-06-05
CN109476380A (zh) 2019-03-15
EP3492392A4 (fr) 2019-08-14

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