EP2287061A2 - Variable-width bogie with rotating axles and a stationary apparatus for changing track width - Google Patents
Variable-width bogie with rotating axles and a stationary apparatus for changing track width Download PDFInfo
- Publication number
- EP2287061A2 EP2287061A2 EP20090738264 EP09738264A EP2287061A2 EP 2287061 A2 EP2287061 A2 EP 2287061A2 EP 20090738264 EP20090738264 EP 20090738264 EP 09738264 A EP09738264 A EP 09738264A EP 2287061 A2 EP2287061 A2 EP 2287061A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- guides
- locking
- axle
- track
- bogie
- 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
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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
- B61F7/00—Rail vehicles equipped for use on tracks of different width
Definitions
- the invention relates to a bogie with means for traveling on tracks having different gauges, and more particularly to a bogie with rotating axles provided with a gauge changing device in cooperation with a changing installation arranged between two tracks having different gauges, and to a fixed track gauge change installation.
- that system involves incorporating in railway units a translation device of the wheels of their axles and, on the other hand, a fixed installation assembled between the tracks having different gauges.
- the operation for changing the distance between wheels is performed automatically, without human intervention, with the passage of the train over said installation in five continuously occurring phases; in the first phase, the wheels are released from their vertical loads; in the second phase, the wheel axle assemblies are released from a lateral locking mechanism holding them in their running position; in the third phase, the wheels, which are released from the vertical load and from their lateral lock, enter into guides which, as the axle moves forward, laterally move them to their new running position, in accordance with the new track gauge; in the fourth and fifth phases, the wheel assemblies are laterally locked again and the vertical load is applied to the axle again, thereby concluding the change operation.
- the axle integrates two independent running assemblies (wheel with short axle or half-axle and two bearings), the gauge change between wheels being performed by the simultaneous transverse movement of the two running assemblies in a manner similar to that used in TALGO trains although, rather than including locking devices in the two bearings of each running assembly, they only incorporate the locking device in the inner bearing.
- the axle assembly comprises an axle chassis on which are assembled the two running assemblies and their locking systems, a connection device between running assemblies, two translation frames of the brake blocks, an electrical continuity system between the wheels or an electrical shunting system and a device for detecting hot inner bearings.
- the present invention aims to meet this demand.
- An object of the present invention is to provide a freight bogie that can adapt to railroad tracks having different gauges in which the non-suspended weight component is minimized.
- Another object of the present invention is to provide a freight bogie that can adapt to railroad tracks having different gauges in which the risk of the accidental unlocking of the device which allows varying the distance between the wheels is minimized.
- a bogie comprising a bearing platform of a railway wagon and at least one rotating axle on which are assembled two wheels by means of a coupling device which allows their lateral movement and which is provided with a track gauge change device using means which prevent/allow the lateral movement of each wheel such as a lock which is vertically movable when actuated by locking/unlocking guides provided for that purpose in a fixed installation for performing the track gauge change, in which:
- the bogie also comprises a bolt as an additional safety element connected to each lock through a horizontal spring for the purposes of preventing its vertical movement in cooperation with a retaining element of said bolt connected to a bearing part.
- Another object of the invention is to provide a fixed installation to perform the gauge change operation adapted to a bogie provided with means which minimize the risk of the accidental unlocking of the device which allows varying the distance between the wheels.
- This object is achieved with a fixed installation for performing the track gauge change comprising sliding and bearing guides, lateral movement guides and locking/unlocking guides, in which the head of the locking/unlocking guides is configured such that it can laterally move said bolt, overcoming the force of said horizontal spring.
- the bogie according to the present invention includes:
- the coupling device for coupling the wheel 1 to the axle 2 comprises:
- the bush 3 cooperates with the tubular element 4 for the lateral movement of the wheel 1 during the gauge change operation.
- the tubular element 4 can be provided with inner grooving and the bush 3 can include a head 3' cooperating with said grooving during the lateral movement of the wheel 1 in the gauge change operation taking place, as will be seen below in further detail, by means of the movement of the locking guides 18, integral with the bush 3 which, in cooperation with the lock 22, determines the two positions of the wheel 1 corresponding to the two track gauges involved.
- the bearing parts 10 are in contact with the axle 2 through the bearings 12 and include inner housings to receive said locking guides 18 and said lock 22 as well as stops 20 provided to serve as positioning and insertion means for the lock 22.
- the central part of the axle 2 on which the wheels 1 are located in the positions corresponding to the two track gauges by means of the coupling device which has been described has a larger diameter than that of its end parts.
- a bush 8' serving as a stop for the movement of the bush 3 in the area of transition between the two gauges.
- a bush 13 At the ends of the axle 2 there is arranged a bush 13 together with a cover 15 fixed to the axle 2 by means of screws serving as a protective element for the same during the track gauge change operation as well as for the stop of the bearings 12.
- the bearing parts 10 also include a side chassis with support and sliding shoes 16 in the fixed installation, for which purpose they have nylon guides 17 and a central collar serving as support for the end of the axle 2, covered by the bush 13, during the passage through the fixed installation through a semicircular bush 14 connected to said central collar which is preferably made of bronze.
- a side chassis with support and sliding shoes 16 in the fixed installation, for which purpose they have nylon guides 17 and a central collar serving as support for the end of the axle 2, covered by the bush 13, during the passage through the fixed installation through a semicircular bush 14 connected to said central collar which is preferably made of bronze.
- this configuration of the side chassis of the bearing parts is determined at least in part by the arrangement of the centering and sliding guide rails 19. If these rails had any other arrangement, the configuration of the side chassis would logically be modified such that it carried out the indicated functions.
- the lock 22 is formed by two vertical rods connected to one another by a hollow bridge designed so that the head of the double T-shaped unlocking guide 24 of the fixed track gauge change installation is introduced through said bridge, and it has nylon guides 23.
- the lock includes pretensed safety springs 28 to prevent unwanted vertical movements of the lock 22 when it is not in contact with the unlocking guide 24.
- the fixing device has an additional safety element formed by the bolt 25, connected to the lock 22 and laterally movable, overcoming the force of the horizontal spring 21, and a retaining element 26 connected to the bearing part 10.
- the bolt 25 When the spring 21 is at rest, the bolt 25 is in contact with the retaining element 26 preventing the vertical movement of the lock 22. In order for this movement to be possible it is necessary to apply a force in the spring 21 which laterally moves the bolt 25 and prevents its being retained by the retaining element 26.
- the fixed installation is bidirectional, the change from a larger to smaller gauge track being performed in one direction while the reverse is performed in the opposite direction.
- the track gauge change process of a wagon reaching the installation from the larger-gauge track is performed as follows.
- the fixing device in this phase it is also necessary to act on the horizontal spring 21 in order to laterally move the bolt 25, thereby preventing the retaining element 26 from preventing the lock 22 from dropping.
- one of the sides of the head of the unlocking guides 24 of the fixed installation has a double T-shape with a progressively variable gauge from the ends to the center, smaller at the ends than in the center, as can be seen by comparing figures 1B and 1C ; therefore the guide 24 serves as an element for actuating the horizontal spring 21 controlling the lateral movement of the bolt 25.
- the guides 27 cause the lateral movement of the coupling device for coupling the wheels 1 to the axle 2 until reaching the position corresponding to the smaller-gauge track 32.
- the downward profile of the guide 24 forces the lock 22 to move up, locking the guide 18 in the new position.
- the spring 21 remains at rest and the bolt 25 is retained by the retaining element 26.
Abstract
Description
- The invention relates to a bogie with means for traveling on tracks having different gauges, and more particularly to a bogie with rotating axles provided with a gauge changing device in cooperation with a changing installation arranged between two tracks having different gauges, and to a fixed track gauge change installation.
- The applicant of this invention developed several decades ago a track gauge changing system, object of patent
ES 332,453 - On one hand, that system involves incorporating in railway units a translation device of the wheels of their axles and, on the other hand, a fixed installation assembled between the tracks having different gauges. The operation for changing the distance between wheels is performed automatically, without human intervention, with the passage of the train over said installation in five continuously occurring phases; in the first phase, the wheels are released from their vertical loads; in the second phase, the wheel axle assemblies are released from a lateral locking mechanism holding them in their running position; in the third phase, the wheels, which are released from the vertical load and from their lateral lock, enter into guides which, as the axle moves forward, laterally move them to their new running position, in accordance with the new track gauge; in the fourth and fifth phases, the wheel assemblies are laterally locked again and the vertical load is applied to the axle again, thereby concluding the change operation.
- After this innovation, which was a major milestone in railway technology, the applicant of this invention has made different developments to apply the system to different railway structures: independent axles, bogies, freight bogies and motor bogies and, among them, the one described in
patent ES 2 130 039 - The axle integrates two independent running assemblies (wheel with short axle or half-axle and two bearings), the gauge change between wheels being performed by the simultaneous transverse movement of the two running assemblies in a manner similar to that used in TALGO trains although, rather than including locking devices in the two bearings of each running assembly, they only incorporate the locking device in the inner bearing.
- Structurally, the axle assembly comprises an axle chassis on which are assembled the two running assemblies and their locking systems, a connection device between running assemblies, two translation frames of the brake blocks, an electrical continuity system between the wheels or an electrical shunting system and a device for detecting hot inner bearings.
- Although the technology described in
patent ES 2 130 039 - The present invention aims to meet this demand.
- An object of the present invention is to provide a freight bogie that can adapt to railroad tracks having different gauges in which the non-suspended weight component is minimized.
- Another object of the present invention is to provide a freight bogie that can adapt to railroad tracks having different gauges in which the risk of the accidental unlocking of the device which allows varying the distance between the wheels is minimized.
- These and other objects are achieved with a bogie comprising a bearing platform of a railway wagon and at least one rotating axle on which are assembled two wheels by means of a coupling device which allows their lateral movement and which is provided with a track gauge change device using means which prevent/allow the lateral movement of each wheel such as a lock which is vertically movable when actuated by locking/unlocking guides provided for that purpose in a fixed installation for performing the track gauge change, in which:
- Said coupling device has connected thereto locking guides by means of which its lateral movement is controlled so as to be located in the positions corresponding to the two track gauges.
- Said rotating axle includes bearing parts of said platform internally including bearings and housings to receive said locking guides and said lock, as well as means to facilitate its locking/unlocking by cooperating with those of said fixed installation;
- Said rotating axle incorporates at its ends bushes fixed to the axle.
- Said bearing parts also include a side chassis with support shoes which may rest on the fixed installation and a central collar serving as support for the end of the axle during the passage through the fixed installation through a semicircular bush connected to said central collar.
- In a preferred embodiment of the invention the bogie also comprises a bolt as an additional safety element connected to each lock through a horizontal spring for the purposes of preventing its vertical movement in cooperation with a retaining element of said bolt connected to a bearing part.
- Another object of the invention is to provide a fixed installation to perform the gauge change operation adapted to a bogie provided with means which minimize the risk of the accidental unlocking of the device which allows varying the distance between the wheels.
- This object is achieved with a fixed installation for performing the track gauge change comprising sliding and bearing guides, lateral movement guides and locking/unlocking guides, in which the head of the locking/unlocking guides is configured such that it can laterally move said bolt, overcoming the force of said horizontal spring.
- Other features and advantages of the present invention will be understood from the following detailed description of an illustrative and non-limiting embodiment of its object in relation to the attached drawings.
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Figures 1A to 1E are cross-section views of half an axle of the bogie according to the present invention in the five phases of the track gauge change process. -
Figures 2A to 2E show side views of half an axle of the bogie according to the present invention in the five phases of the track gauge change process. -
Figures 3A and3B are simplified side-section and cross-section views of the axle of the bogie according to the present invention showing the basic elements of the track gauge change device. -
Figures 3C, 3D and 3E show plan and section views of the ring incorporating the locking guides. -
Figure 4 is a plan view of the fixed track gauge change installation. -
Figure 5 is a section view of the track gauge change installation, taken along line A-A ofFigure 4 . - The bogie according to the present invention includes:
- A platform the load of which is transmitted through the
suspension springs 11 . - At least one rotating
axle 2 on which there are assembled at each of its ends:- a) A
wheel 1 by means of a coupling device allowing its lateral movement. - b) A bearing
part 10 of said platform, - c) A track gauge change device using means which prevent/allow the lateral movement of the
wheel 1 such us alock 22 which is vertically movable when actuated by means provided for that purpose in the fixed installation.
- a) A
- In the embodiment of the invention illustrated in the figures the coupling device for coupling the
wheel 1 to theaxle 2 comprises: - A
bush 3 integral with thewheel 1 and sliding on theaxle 2 including at its end aring 7, with an axial inner bearing 8, to which thelocking guides 18 are fixed. - A
tubular element 4 fixed to the central part of theaxle 2 by means of thebushes - There is a separating
bush 9 between thewheel 1 and the bearing axial 8 to constantly maintain the distance. - The
bush 3 cooperates with thetubular element 4 for the lateral movement of thewheel 1 during the gauge change operation. For that purpose thetubular element 4 can be provided with inner grooving and thebush 3 can include a head 3' cooperating with said grooving during the lateral movement of thewheel 1 in the gauge change operation taking place, as will be seen below in further detail, by means of the movement of thelocking guides 18, integral with thebush 3 which, in cooperation with thelock 22, determines the two positions of thewheel 1 corresponding to the two track gauges involved. - The bearing
parts 10 are in contact with theaxle 2 through thebearings 12 and include inner housings to receive saidlocking guides 18 and saidlock 22 as well asstops 20 provided to serve as positioning and insertion means for thelock 22. - The central part of the
axle 2 on which thewheels 1 are located in the positions corresponding to the two track gauges by means of the coupling device which has been described has a larger diameter than that of its end parts. There is a bush 8' serving as a stop for the movement of thebush 3 in the area of transition between the two gauges. At the ends of theaxle 2 there is arranged abush 13 together with acover 15 fixed to theaxle 2 by means of screws serving as a protective element for the same during the track gauge change operation as well as for the stop of thebearings 12. - The bearing
parts 10 also include a side chassis with support and slidingshoes 16 in the fixed installation, for which purpose they havenylon guides 17 and a central collar serving as support for the end of theaxle 2, covered by thebush 13, during the passage through the fixed installation through asemicircular bush 14 connected to said central collar which is preferably made of bronze. As will be seen below, during the track gauge change operation, the bogie is supported and slides on theseshoes 16, thewheels 1 being load-free. - As a person skilled in the art will understand, this configuration of the side chassis of the bearing parts is determined at least in part by the arrangement of the centering and sliding
guide rails 19. If these rails had any other arrangement, the configuration of the side chassis would logically be modified such that it carried out the indicated functions. - The
lock 22 is formed by two vertical rods connected to one another by a hollow bridge designed so that the head of the double T-shapedunlocking guide 24 of the fixed track gauge change installation is introduced through said bridge, and it hasnylon guides 23. To prevent accidental locking/unlocking, the lock includespretensed safety springs 28 to prevent unwanted vertical movements of thelock 22 when it is not in contact with theunlocking guide 24. - In the embodiments shown in the figures, the fixing device has an additional safety element formed by the
bolt 25, connected to thelock 22 and laterally movable, overcoming the force of thehorizontal spring 21, and aretaining element 26 connected to thebearing part 10. When thespring 21 is at rest, thebolt 25 is in contact with theretaining element 26 preventing the vertical movement of thelock 22. In order for this movement to be possible it is necessary to apply a force in thespring 21 which laterally moves thebolt 25 and prevents its being retained by theretaining element 26. - The track gauge change process upon the passage through the mentioned fixed installation, the essential components of which are listed below, is described below in reference to
Figures 4 and 5 : - Ends of the
rails 31 of the larger-gauge track. - Ends of the
rails 32 of the smaller-gauge track. - Centering and sliding
guide rails 19. - Unlocking and
locking guides 24 of thelocks 22. -
Translation guides 27 of thewheels 1. - The fixed installation is bidirectional, the change from a larger to smaller gauge track being performed in one direction while the reverse is performed in the opposite direction.
- The track gauge change process of a wagon reaching the installation from the larger-gauge track is performed as follows.
- When the
wheels 1 reach the downward area of the end of therails 31 the gradual lowering of the bogie starts until the slidingshoes 16 contact with the centering and sliding guide rails 19. After this time, thewheels 1 are load-free, remaining that way during the entire change process until contacting with the smaller-gauge rails 32 at the end of said process. - Once the
axle 2 is centered and supported on the centering and slidingguides 19, the heads of the end of the unlocking guides 24 are introduced into the bridge of thelock 22 and given the downward profile of this guide, the force of thevertical springs 28 is overcome and thelocks 22 are forced to drop down, leaving the locking guides 18 unlocked, therefore being free to move laterally, and with them thewheels 1. - In the preferred embodiment of the invention in which the fixing device includes the
bolt 25 as an additional safety element, in this phase it is also necessary to act on thehorizontal spring 21 in order to laterally move thebolt 25, thereby preventing the retainingelement 26 from preventing thelock 22 from dropping. For this purpose one of the sides of the head of the unlockingguides 24 of the fixed installation has a double T-shape with a progressively variable gauge from the ends to the center, smaller at the ends than in the center, as can be seen by comparingfigures 1B and1C ; therefore theguide 24 serves as an element for actuating thehorizontal spring 21 controlling the lateral movement of thebolt 25. - For their part the
guides 27 cause the lateral movement of the coupling device for coupling thewheels 1 to theaxle 2 until reaching the position corresponding to the smaller-gauge track 32. - The downward profile of the
guide 24 forces thelock 22 to move up, locking theguide 18 in the new position. - In the preferred embodiment of the invention including the
bolt 25 and theguide 24 with one of the sides of the variable gauge head, at the end of the phase thespring 21 remains at rest and thebolt 25 is retained by the retainingelement 26. - When the
wheels 1 reach therails 32 theshoes 16 are no longer supported in their slidingguides 19, the track gauge change operation ending. - Although the present invention has been described entirely in relation to preferred embodiments, it is obvious that modifications can be introduced in its scope as the latter is not considered to be limited by the foregoing embodiments, but rather by the contents of the following claims.
-
- 1 wheel
- 2 rotating axle
- 3 bush
- 3' cooperating head
- 4 tubular element
- 5 bush
- 6 bush
- 7 ring
- 8 inner axial bearing
- 9 separating bush
- 10 bearing part
- 11 suspension spring
- 12 bearings
- 13 bush
- 14 semicircular bush
- 15 cover
- 16 support and sliding shoes
- 17 nylon guides
- 18 locking guides
- 19 centering and sliding guide rails
- 20 stops
- 21 horizontal spring
- 22 lock
- 23 nylon guides
- 24 locking/unlocking guides
- 25 bolt
- 26 retaining element
- 27 translation guides of the wheels
- 28 vertical safety springs
- 31 rails of the larger-gauge track
- 32 rails of the smaller-gauge track
Claims (6)
- A bogie comprising a bearing platform of a railway wagon and at least one rotating axle (2) on which two wheels (1) are assembled by means of a coupling device which allows their lateral movement and which is provided with a track gauge change device using means which prevent/allow the lateral movement of each wheel (1) such as a lock (22) which is vertically movable when actuated by locking/unlocking guides (24) provided for that purpose in a fixed installation for performing the track gauge change, characterized in that:a) said coupling device has connected thereto locking guides (18) by means of which its lateral movement is controlled so as to be located in the positions corresponding to the two track gauges;b) said rotating axle (2) includes bearing parts (10) of said platform internally including bearings (12) and housings to receive said locking guides (18) and said lock (22), as well as means to facilitate its locking/unlocking by cooperating with those of said fixed installation;c) said rotating axle (2) incorporates at its ends bushes (13) fixed to the axle;d) said bearing parts (10) also include a side chassis with support shoes (16) which may rest on the fixed installation and a central collar serving as support for the end of the axle (2) during the passage through the fixed installation through a semicircular bush (14) connected to said central collar.
- The bogie according to the claim 1, characterized in that the central part of the axle (2) on which the wheels (1) are located in the positions corresponding to the two track gauges has a larger diameter than that of its side parts in contact with said bearing parts (10) through the bearings (12).
- The bogie according to any of claims 1-2 characterized in that said coupling device comprises a bush (3) integral with the wheel (1) and sliding on the axle (2) cooperating with a tubular element (4) fixed to the central part of the axle (2) and including at its end a ring (7), with an inner axial bearing (8), to which the locking guides (18) are fixed.
- The bogie according to any of claims 1-3, characterized in that it also comprises a bolt (25) connected to each lock (22) through a horizontal spring (21) for the purposes of preventing its vertical movement in cooperation with a retaining element (26) of said bolt (25) connected to the bearing part (10).
- A fixed installation for performing the track gauge change as the bogie according to claim 4 moves over it, comprising sliding and bearing guides (19), lateral movement guides (27) and locking/unlocking guides (24), characterized in that the head of the of locking/unlocking guides (24) is configured such that it can laterally move said bolt (25), overcoming the force of said horizontal spring (21).
- The fixed installation for performing the track gauge change according to claim 5, characterized in that said locking/unlocking guides (24) have a double T-shaped profile and one of the half-flanges of its head has a progressively variable gauge, from smaller to larger from the end to the center of the guide, in the longitudinal direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09738264T PL2287061T3 (en) | 2008-04-29 | 2009-04-28 | Variable-width bogie with rotating axles and a stationary apparatus for changing track width |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200801227A ES2346945B1 (en) | 2008-04-29 | 2008-04-29 | VARIABLE WIDTH BOGIE WITH ROTATING AXLES AND FIXED INSTALLATION FOR VIA WIDTH CHANGE. |
PCT/ES2009/070123 WO2009133227A2 (en) | 2008-04-29 | 2009-04-28 | Variable-width bogie with rotating axles and a stationary apparatus for changing track width |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2287061A2 true EP2287061A2 (en) | 2011-02-23 |
EP2287061B1 EP2287061B1 (en) | 2017-12-06 |
Family
ID=41010336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09738264.2A Active EP2287061B1 (en) | 2008-04-29 | 2009-04-28 | Variable-width bogie with rotating axles and a stationary apparatus for changing track width |
Country Status (9)
Country | Link |
---|---|
US (1) | US20110265682A1 (en) |
EP (1) | EP2287061B1 (en) |
CN (1) | CN102076544B (en) |
AU (1) | AU2009242050B2 (en) |
CA (1) | CA2723103A1 (en) |
ES (2) | ES2346945B1 (en) |
PL (1) | PL2287061T3 (en) |
RU (1) | RU2493991C2 (en) |
WO (1) | WO2009133227A2 (en) |
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ES2348895B1 (en) | 2010-05-28 | 2011-08-16 | Construcciones Y Auxiliar De Ferrocarriles, S.A. | DISPLACABLE BEARING BOGIE, FOR RAILWAY VEHICLES. |
CN103192843B (en) * | 2013-04-19 | 2015-08-19 | 西南交通大学 | For the catch gear of gauge-changeable bogie |
ES2607380B1 (en) | 2015-09-29 | 2018-02-13 | Patentes Talgo, S.L. | Railway Shaft Assembly |
CN105821772B (en) * | 2016-05-19 | 2017-08-11 | 中铁第五勘察设计院集团有限公司 | The Double-directional rotary bogie of adaptive gauge changing |
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CN108394425A (en) * | 2018-05-11 | 2018-08-14 | 吉林大学 | It is a kind of subdivision gauge gauge-changeable bogie wheel to retaining mechanism |
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CN108909354B (en) * | 2018-06-29 | 2020-05-19 | 中车青岛四方机车车辆股份有限公司 | Locking mechanism for track-variable wheel set and track-variable wheel set |
CN108909355B (en) * | 2018-06-29 | 2020-05-19 | 中车青岛四方机车车辆股份有限公司 | Wheel set for variable-gauge bogie and bogie |
CN108909763B (en) * | 2018-07-05 | 2020-02-14 | 中车青岛四方机车车辆股份有限公司 | Axle box for variable-gauge wheel set and variable-gauge bogie |
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CN108909761B (en) * | 2018-07-05 | 2019-11-22 | 中车青岛四方机车车辆股份有限公司 | A kind of axle box for gauge-changeable wheelsets |
CN110877625B (en) * | 2018-09-05 | 2020-11-10 | 中车唐山机车车辆有限公司 | Ground track transfer device and track pitch transfer system |
CN111071280B (en) * | 2018-10-19 | 2021-02-09 | 中车唐山机车车辆有限公司 | Axle box, bogie and rail vehicle |
CN111071279B (en) * | 2018-10-19 | 2021-02-02 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
RU2692506C1 (en) * | 2018-10-30 | 2019-06-25 | Александр Иванович Худолий | Railway rolling stock wheel pair |
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2008
- 2008-04-29 ES ES200801227A patent/ES2346945B1/en active Active
-
2009
- 2009-04-28 CA CA 2723103 patent/CA2723103A1/en not_active Abandoned
- 2009-04-28 PL PL09738264T patent/PL2287061T3/en unknown
- 2009-04-28 EP EP09738264.2A patent/EP2287061B1/en active Active
- 2009-04-28 AU AU2009242050A patent/AU2009242050B2/en active Active
- 2009-04-28 ES ES09738264.2T patent/ES2657426T3/en active Active
- 2009-04-28 CN CN2009801248980A patent/CN102076544B/en not_active Expired - Fee Related
- 2009-04-28 US US12/990,403 patent/US20110265682A1/en not_active Abandoned
- 2009-04-28 RU RU2010148416/11A patent/RU2493991C2/en not_active IP Right Cessation
- 2009-04-28 WO PCT/ES2009/070123 patent/WO2009133227A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2009133227A2 * |
Also Published As
Publication number | Publication date |
---|---|
AU2009242050B2 (en) | 2014-04-17 |
CA2723103A1 (en) | 2009-11-05 |
WO2009133227A2 (en) | 2009-11-05 |
WO2009133227A3 (en) | 2009-12-17 |
ES2346945A1 (en) | 2010-10-21 |
RU2010148416A (en) | 2012-06-10 |
US20110265682A1 (en) | 2011-11-03 |
EP2287061B1 (en) | 2017-12-06 |
CN102076544B (en) | 2013-06-12 |
ES2657426T3 (en) | 2018-03-05 |
RU2493991C2 (en) | 2013-09-27 |
CN102076544A (en) | 2011-05-25 |
AU2009242050A1 (en) | 2009-11-05 |
PL2287061T3 (en) | 2018-06-29 |
ES2346945B1 (en) | 2011-12-23 |
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