EP3909829B1 - Appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et ensemble roue à jauge variable - Google Patents

Appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et ensemble roue à jauge variable Download PDF

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Publication number
EP3909829B1
EP3909829B1 EP19908343.7A EP19908343A EP3909829B1 EP 3909829 B1 EP3909829 B1 EP 3909829B1 EP 19908343 A EP19908343 A EP 19908343A EP 3909829 B1 EP3909829 B1 EP 3909829B1
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EP
European Patent Office
Prior art keywords
axle
sliding
sealing
ring
sealing apparatus
Prior art date
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Application number
EP19908343.7A
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German (de)
English (en)
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EP3909829A4 (fr
EP3909829A1 (fr
Inventor
Jiaqi WEI
Xiang Yu
Xin Yang
Shuo Chen
Xu Wang
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.)
CRRC Qingdao Sifang Co Ltd
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CRRC Qingdao Sifang Co Ltd
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Publication of EP3909829A4 publication Critical patent/EP3909829A4/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
    • B61F7/00—Rail vehicles equipped for use on tracks of different width
    • 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
    • B61F15/00—Axle-boxes
    • B61F15/12—Axle-boxes with roller, needle, or ball bearings
    • B61F15/16—Axle-boxes with roller, needle, or ball bearings the axle being slidable or tiltable in the 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
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • B61F15/22—Sealing means preventing entrance of dust or leakage of oil
    • 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
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • B61F15/26—Covers; Sealing thereof
    • 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
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes

Definitions

  • the present application relates to the technical field of rail vehicle gauge change, and in particular, to a sealing apparatus for gauge-changing wheelset and a gauge-changing wheelset.
  • EP1064185A1 discloses a bearing unit, comprising a rolling element bearing having an inner ring means and an outer ring means, said inner ring means being fitted on an axle stub between two opposite mounting faces, means being provided for preventing fretting corrosion between at least one of said mounting faces and the inner ring means, characterized in that said at least one mounting face and the inner ring means engage each other by means of a non-metallic polymer support ring.
  • the bearing unit can be applied as a railway axlebox bearing unit.
  • the present application is intended to solve at least one of the technical problems in the prior art or related technologies.
  • the present invention provides a sealing apparatus according to claim 1 for gauge-changing wheelset.
  • the sealing apparatus can be arranged between a sliding mechanism of the gauge-changing wheelset and an axle-box rear cover of an axle-box body, the sliding mechanism is axially movable relative to the axle-box body and rotatable relative to the axle-box body.
  • the sealing apparatus includes a sliding seal and a rotating seal
  • the sliding seal includes a sliding ring sleeved outside the sliding mechanism and hermetically connected to the axle-box rear cover, an inner wall of the sliding ring is axially provided with a through groove, and an outer wall of the sliding mechanism is axially provided with a protrusion which is slidably fitted with the through groove
  • the rotating seal includes a sealing baffle fixed on an outer side of the axle-box rear cover, an outer wall of the sliding ring is circumferentially provided with an annular groove, and a lower end of the sealing baffle extends into the annular groove.
  • the sealing apparatus further includes a first sealing ring
  • the axle-box rear cover is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole, an outer circumference of the first sealing ring is installed by interference in the first mounting groove, and an inner circumference of the first sealing ring is pressed against an outer circumference of the sliding ring.
  • the outer wall of the sliding mechanism is axially provided with a positioning groove, in which a positioning key protruding from the positioning groove is placed to form the protrusion.
  • the inner wall of the sliding ring is circumferentially provided with a plurality of the through grooves
  • the outer wall of the sliding mechanism is circumferentially provided with the protrusions corresponding to the through grooves in a one-to-one manner.
  • the inner wall of the sliding ring is circumferentially provided with two through grooves, and the two through grooves are arranged on two radial sides of the inner wall of the sliding ring.
  • the sealing baffle includes a first baffle and a second baffle butted end to end to form a ring, and an inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in the annular groove of the sliding ring.
  • the first baffle and the second baffle have L-shaped cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover by fasteners, and a longer side of the L-shape is arranged proximate to the outside of the axle-box rear cover.
  • a second sealing ring is arranged between the sliding ring and the sliding mechanism, and the second sealing ring is fixedly sleeved in a second mounting groove on an outer circumference of the sliding mechanism.
  • An embodiment of the present invention also provides a gauge-changing wheelset, including sliding mechanisms, axle-box bodies and sealing apparatus for gauge-changing wheelset, where the sealing apparatus is arranged between the sliding mechanism and the axle-box rear cover of the axle-box body, and is configured to provide the axially sliding sealing and a rotating sealing of the sliding mechanism.
  • the gauge-changing wheelset further includes wheels and an axle, where the wheels are slidably arranged at both ends of the axle, the sliding mechanisms are respectively connected with the wheels, and are located in the axle-box bodies at both ends of the axle, the wheels are unlocked and locked through the sliding mechanisms, and the sliding mechanism includes an inner sleeve sleeved on the axle and in clearance fit with the axle, and the sealing apparatus is arranged between the inner sleeve and the axle-box rear cover of the axle-box body.
  • the present invention has at least the following advantages: the embodiments of the present invention provide a sealing apparatus for gauge-changing wheelset, the sealing apparatus is arranged between the sliding mechanism of the gauge-changing wheelset and the axle-box rear cover of the axle-box body, the sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring sleeved outside the sliding mechanism and hermetically connected to the axle-box rear cover, the inner wall of the sliding ring is axially provided with a through groove, and the outer wall of the sliding mechanism is axially provided with a protrusion which is slidably fitted with the through groove.
  • the rotating seal includes a sealing baffle fixed on the outer side of the axle-box rear, the outer wall of the sliding ring is circumferentially provided with an annular groove, and the lower end of the sealing baffle extends into the annular groove to provide axial positioning for the sliding ring, so that the sliding ring does not move axially; therefore, the sliding ring can only rotate circumferentially relative to the axle-box rear cover, and can only slide axially relative to the sliding mechanism.
  • the double-degree of-freedom sealing is decoupled into a two-stage single-degree-of-freedom sealing, in which each layer of the sealing is only for relative translation or relative rotation, so as to improve the sealing environment and enhance the sealing effects. It is also conductive to the optimization of the seals under a single influence factor, and finally realize the sealing of the composite degree of freedom structure.
  • axle-box body 1 axle-box body 2 axle-box rear cover; 3 sliding mechanism 31 inner sleeve 32 rolling bearing 33 outer sleeve 34 positioning key 4 sliding ring 41 through groove 42 annular groove 5 sealing baffle 6 first sealing ring 7 second sealing ring 8 axle
  • orientation or positional relationships indicated by terms such as “center”, “longitudinal”, “lateral”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside” and the like are based on the orientation or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component stated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
  • the terms “first”, “second”, “third”, and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
  • the terms “installed”, “connected with”, and “connected” shall be understood in a broad sense, for example, it may be either fixedly connected or detachably connected, or may be integrally connected; it may be mechanically connected, or electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, or the communication between the interior of two elements.
  • installed may be either fixedly connected or detachably connected, or may be integrally connected; it may be mechanically connected, or electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, or the communication between the interior of two elements.
  • an embodiment of the present invention provides a sealing apparatus for gauge-changing wheelset.
  • the gauge-changing wheelset includes a sliding mechanism 3 and an axle-box body 1.
  • the sliding mechanism 3 can move back and forth relative to the axial direction of the axle-box body 1 to meet the requirements of gauge change.
  • one end of the axle-box body 1 is provided with an axle-box front cover, and the other end of the axle-box body 1 is provided with an axle-box rear cover 2.
  • the sliding mechanism 3 is located in the axle-box body 1, passes out of the axle-box rear cover 2 and is connected with the wheel.
  • the sealing apparatus is arranged between the sliding mechanism 3 of the gauge-changing wheelset and the axle-box rear cover 2 of the axle-box body 1; in an embodiment, the sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring 4 sleeved outside the sliding mechanism 3 and hermetically connected to the axle-box rear cover 2. As shown in FIG.
  • an inner wall of the sliding ring 4 is axially provided with a through groove 41
  • an outer wall of the sliding mechanism 3 is axially provided with a protrusion which is slidably fitted with the through groove 41.
  • an outer wall of the sliding ring 4 is circumferentially provided with an annular groove 42, and a lower end of the sealing baffle 5 extends into the annular groove 42 to provide axial positioning for the sliding ring 4, so that the sliding ring 4 does not move axially, as a result, the sliding ring 4 may only rotate circumferentially relative to the axle-box rear cover 2, and can only slide axially relative to the sliding mechanism 3.
  • the double-degree-of-freedom sealing is decoupled into a two-stage single-degree-of-freedom sealing, in which each layer of sealing is only for relative translation or relative rotation, so as to improve the sealing environment and enhance the sealing effects. It is also conductive to the optimization of the seals under a single influence factor, so as to finally seal the composite-degree-of-freedom structure.
  • a first sealing ring 6 is also included.
  • the first sealing ring 6 may be a rubber sealing ring
  • the axle-box rear cover 2 is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole.
  • the first mounting hole is annular
  • the outer circumference of the first sealing ring 6 is installed by interference in the first mounting groove
  • the inner circumference of the first sealing ring 6 is pressed against an outer circumference of the sliding ring 4.
  • the outer wall of the sliding mechanism 3 is axially provided with a positioning groove in which a positioning key 34 protruding from the positioning groove is placed, the length of the positioning key 34 matches the length of the positioning groove, and the thickness of the positioning key 34 is greater than the depth of the positioning groove, so that after the positioning key 34 is installed in the positioning groove, an upper surface of the positioning key 34 is higher than the positioning groove to form the protrusion, through which the sliding ring 4 and the sliding mechanism 3 may rotate together, and the protrusion does not restrict the axial movement of the sliding mechanism 3.
  • one through groove 41 may be arranged on the circumferential direction of the inner wall of the sliding ring 4, but in order to make the force deployed on the sliding ring 4 evenly, a plurality of through grooves 41 are preferably arranged on the circumferential direction of the inner wall of the sliding ring 4.
  • the plurality of through grooves 41 may be evenly distributed on the inner wall of the sliding ring 4 along the circumferential direction, and the protrusions corresponding to the through grooves 41 in a one-to-one manner are provided on the outer wall of the sliding mechanism 3 along the circumferential direction.
  • the inner wall of the sliding ring 4 is circumferentially provided with two through grooves 41, which are arranged on two radial sides of the inner wall of the sliding ring 4.
  • the sealing baffle 5 in order to fit with the annular groove 42 outside the sliding ring 4 and fully seal the circumferential direction of the annular groove 42, the sealing baffle 5 includes a first baffle and a second baffle butted end to end to form a ring.
  • the sealing baffle 5 is divided into a first baffle and a second baffle so as to facilitate the installation from the top and bottom, and the inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in the annular groove 42 of the sliding ring 4.
  • the inner circumference of the first baffle and the second baffle is rotationally sealed to the annular groove 42.
  • the first baffle and the second baffle have specifically L-shaped radial cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover 2 by fasteners such as bolts, and a longer side of the L-shape is arranged proximate to an outer side of the axle-box rear cover 2 and extends into the annular groove 42.
  • a slender gap which has a labyrinth function.
  • a second sealing ring 7 such as a sealing rubber O-ring, is arranged between the sliding ring 4 and the sliding mechanism 3, and the second sealing ring 7 is fixedly sleeved in the second mounting groove on the outer circumference of the sliding mechanism 3.
  • the inner circumference of the sliding ring 4 is in sealing contact with the second sealing ring 7 to further enhance the sealing effects.
  • An embodiment of the present invention also provides a gauge-changing wheelset, which includes sliding mechanisms 3, axle-box bodies 1 and the above-mentioned sealing apparatus for gauge-changing wheelset.
  • the sealing apparatus is arranged between the sliding mechanism 3 and the axle-box rear cover 2 of the axle-box body 1, and is configured to provide the axial sliding sealing and the rotating sealing of the sliding mechanism.
  • sealing is performed in each single degree of freedom separately by decomposing the degrees of freedom, thereby reducing the difficulty in sealing, and ensuring the high-speed operation performance of the gauge-changing wheelset while ensuring the sealing performance of the multi-degree-of-freedom movement.
  • the gauge-changing wheelset further includes wheels and an axle 8, and the wheels are slidably arranged at both ends of the axle 8.
  • the wheel is provided with inner splines on the inner circumference thereof
  • the axle 8 is provided with outer splines at both ends thereof
  • the wheels are fitted and connected with the two ends of the axle 8 through the inner splines and the outer splines, which is convenient for both torque transmission and wheel movement.
  • the sliding mechanisms 3 are respectively connected with the wheels, and are located in the axle-box bodies 1 at both ends of the axle 8. The wheel is unlocked and locked through the sliding mechanism 3.
  • the sliding mechanism 3 includes an inner sleeve 31 sleeved on the axle 8 and in clearance fit with the axle 8, and the sealing apparatus is arranged between the inner sleeve 31 and the axle-box rear cover 2, the protrusion is thus arranged outside the inner sleeve 31, and the positioning groove is arranged on the inner sleeve 31; an end of the inner sleeve 31 towards the wheel extends out of the axle-box body 1 and is fixedly connected to the wheel through fasteners, and a gauge change space is reserved between the extending end of the inner sleeve 31 and the axle 8, so as to ensure that the inner sleeve 31 has enough distance to move along the axle 8 without interference with the axle 8 when the gauge is changed.
  • the sliding mechanism 3 further includes a rolling bearing 32 and an outer sleeve 33, and the inner sleeve 31, the rolling bearing 32 and the outer sleeve 33 are tightly sleeved in sequence from inside to outside.
  • the inner sleeve 31 and the inner ring of the rolling bearing 32 rotate with the wheel, while the outer sleeve 33 and the outer ring of the rolling bearing 32 remain relatively fixed.
  • the outer sleeve 33 and the inner surface of the axle-box body 1 are in clearance fit, so that the outer sleeve 33, the inner sleeve 31 and the rolling bearing 32 can move along the axle-box body 1 as a whole.
  • sealing is performed in each single degree of freedom separately by decomposing the degrees of freedom, thus reducing the difficulty of sealing and ensuring the high-speed performance of gauge-changing wheelset while ensuring the sealing performance of the multi-degree-of-freedom movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing Of Bearings (AREA)
  • Gasket Seals (AREA)

Claims (10)

  1. Appareil d'étanchéité pour un essieu monté à écartement variable, dans lequel l'appareil d'étanchéité peut être agencé entre un mécanisme de coulissement (3) de l'essieu monté à écartement variable et un couvercle arrière de boîte d'essieu (2) d'un corps de boîte d'essieu (1) ; le mécanisme de coulissement (3) est mobile axialement par rapport au corps de boîte d'essieu (1) et peut tourner par rapport au corps de boîte d'essieu (1), l'appareil d'étanchéité comprenant un joint coulissant et un joint rotatif ; le joint coulissant comprend une bague coulissante (4) qui peut être manchonnée à l'extérieur du mécanisme de coulissement (3) et reliée de manière hermétique au couvercle arrière de boîte d'essieu (2) ;
    caractérisé en ce qu'une paroi intérieure de la bague coulissante (4) est pourvue axialement d'une rainure traversante (41) qui peut être ajustée de manière coulissante avec une saillie prévue axialement dans une paroi extérieure du mécanisme de coulissement (3) ; le joint d'étanchéité rotatif comprend un déflecteur d'étanchéité (5) qui peut être fixé sur un côté extérieur du couvercle arrière de boîte d'essieu (2), une paroi extérieure de la bague coulissante (4) est pourvue circonférentiellement d'une rainure annulaire (42), et une extrémité inférieure du déflecteur d'étanchéité (5) s'étend dans la rainure annulaire (42).
  2. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 1, comprenant en outre une première bague d'étanchéité (6), le couvercle arrière de boîte d'essieu (2) est pourvu d'un trou traversant axial et également pourvu d'une première rainure de montage sur une circonférence intérieure du trou traversant axial, une circonférence extérieure de la première bague d'étanchéité (6) est installée par interférence dans la première rainure de montage, et une circonférence intérieure de la première bague d'étanchéité (6) est pressée contre une circonférence extérieure de la bague coulissante (4).
  3. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 1, caractérisé en ce que la paroi extérieure du mécanisme de coulissement (3) est pourvue axialement d'une rainure de positionnement, dans laquelle une clé de positionnement (34) faisant saillie à partir de la rainure de positionnement est placée pour former la saillie.
  4. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 1, caractérisé en ce que la paroi intérieure de la bague coulissante (4) est pourvue de manière circonférentielle d'une pluralité de rainures traversantes (41), et la paroi extérieure du mécanisme de coulissement (3) est pourvue de manière circonférentielle de saillies correspondant aux rainures traversantes (41) d'une manière biunivoque.
  5. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 4, caractérisé en ce que la paroi intérieure de la bague coulissante (4) est pourvue circonférentiellement de deux dites rainures traversantes (41), et les deux rainures traversantes (41) sont agencées sur deux côtés radiaux de la paroi intérieure de la bague coulissante (4).
  6. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 1, caractérisé en ce que le déflecteur d'étanchéité (5) comprend un premier déflecteur et un second déflecteur mis en butée bout à bout pour former une bague, et une circonférence intérieure de la bague formée par la mise en butée du premier déflecteur et du second déflecteur est située dans la rainure annulaire (42) de la bague coulissante (4).
  7. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 6, caractérisé en ce que le premier déflecteur et le second déflecteur présentent des sections transversales en forme de L, un côté plus court de la forme en L est fixé sur une circonférence extérieure du couvercle arrière de boîte d'essieu (2) par des fixations, et un côté plus long de la forme en L est agencé à proximité d'un côté extérieur du couvercle arrière de boîte d'essieu (2).
  8. Appareil d'étanchéité pour un essieu monté à écartement variable selon la revendication 1, caractérisé en ce qu'une seconde bague d'étanchéité (7) est agencée entre la bague coulissante (4) et le mécanisme de coulissement (3), et la seconde bague d'étanchéité (7) est manchonnée de manière fixe dans une seconde rainure de montage sur une circonférence extérieure du mécanisme de coulissement (3).
  9. Essieu monté à écartement variable, comprenant des mécanismes de coulissement(3), des corps de boîte d'essieu (1) et un appareil d'étanchéité pour un essieu monté à écartement variable selon l'une quelconque des revendications 1 à 8, dans lequel l'appareil d'étanchéité est agencé entre le mécanisme de coulissement (3) et un couvercle arrière de boîte d'essieu (2) du corps de boîte d'essieu (1), et est configuré pour fournir une étanchéité de coulissement axial et une étanchéité de rotation du mécanisme de coulissement (3).
  10. Essieu monté à écartement variable selon la revendication 9, comprenant en outre des roues et un essieu (8), dans lequel les roues sont agencées de manière coulissante aux deux extrémités de l'essieu (8), les mécanismes de coulissement (3) sont respectivement reliés aux roues et sont situés dans les corps de boîte d'essieu (1) aux deux extrémités de l'essieu (8), les roues sont déverrouillées et verrouillées par les mécanismes de coulissement (3), et le mécanisme de coulissement (3) comprend un manchon intérieur (31) manchonné sur l'essieu (8) et en ajustement avec jeu avec l'essieu (8), et l'appareil d'étanchéité est agencé entre le manchon intérieur (31) et le couvercle arrière de boîte d'essieu (2) du corps de boîte d'essieu (1).
EP19908343.7A 2019-01-07 2019-09-26 Appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et ensemble roue à jauge variable Active EP3909829B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910012719.XA CN109733434B (zh) 2019-01-07 2019-01-07 用于变轨距轮对的密封装置及变轨距轮对
PCT/CN2019/108096 WO2020143251A1 (fr) 2019-01-07 2019-09-26 Appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et ensemble roue à jauge variable

Publications (3)

Publication Number Publication Date
EP3909829A1 EP3909829A1 (fr) 2021-11-17
EP3909829A4 EP3909829A4 (fr) 2022-04-20
EP3909829B1 true EP3909829B1 (fr) 2023-09-06

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EP (1) EP3909829B1 (fr)
JP (1) JP7066259B2 (fr)
CN (1) CN109733434B (fr)
ES (1) ES2958919T3 (fr)
PL (1) PL3909829T3 (fr)
RU (1) RU2759204C1 (fr)
WO (1) WO2020143251A1 (fr)

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CN109733434B (zh) * 2019-01-07 2020-05-08 中车青岛四方机车车辆股份有限公司 用于变轨距轮对的密封装置及变轨距轮对

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RU2369503C1 (ru) * 2008-03-03 2009-10-10 Гимадиев Фарит Шайхиевич Устройство для перевода раздвижных колесных пар с одной колеи на другую
UA95509C2 (ru) * 2009-08-26 2011-08-10 Акционерное Общество "У.П.Э.К." Буксовый подшипниковый узел
EP2833011A1 (fr) * 2013-07-31 2015-02-04 Aktiebolaget SKF Ensemble de boîte d'essieu ferroviaire et boîte d'essieu ferroviaire comprenant celui-ci
US9789887B2 (en) * 2015-05-11 2017-10-17 Aktiebolaget Skf Backing ring assembly for railcar axle bearings
FR3060504B1 (fr) * 2016-12-16 2022-01-07 Skf Ab Boite d'essieu pour bogie de vehicule ferroviaire et bogie de chemin de fer equipe d'une telle boite d'essieu
CN207191061U (zh) * 2017-09-01 2018-04-06 西南交通大学 一种应用于变轨距转向架的锁紧组件
CN107856693A (zh) * 2017-11-23 2018-03-30 中车长春轨道客车股份有限公司 准‑宽轨距转换的高速动车组动力轮对轴箱装置
CN107856692A (zh) * 2017-11-23 2018-03-30 中车长春轨道客车股份有限公司 用于实现准‑窄轨距转换的车轮滑移装置
CN108407839B (zh) * 2018-04-13 2019-11-22 中车青岛四方机车车辆股份有限公司 一种用于变轨距轮对的密封结构
CN108909358B (zh) * 2018-07-05 2021-09-10 中车青岛四方机车车辆股份有限公司 一种变轨距轮对及变轨距转向架
CN108909360B (zh) * 2018-07-05 2021-08-24 中车青岛四方机车车辆股份有限公司 一种用于变轨距轮对的锁紧机构及变轨距轮对
CN109733434B (zh) * 2019-01-07 2020-05-08 中车青岛四方机车车辆股份有限公司 用于变轨距轮对的密封装置及变轨距轮对

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EP3909829A4 (fr) 2022-04-20
CN109733434A (zh) 2019-05-10
CN109733434B (zh) 2020-05-08
EP3909829A1 (fr) 2021-11-17
ES2958919T3 (es) 2024-02-16
PL3909829T3 (pl) 2024-02-26
WO2020143251A1 (fr) 2020-07-16
JP2022508782A (ja) 2022-01-19
RU2759204C1 (ru) 2021-11-10

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