WO2020143251A1 - 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
WO2020143251A1
WO2020143251A1 PCT/CN2019/108096 CN2019108096W WO2020143251A1 WO 2020143251 A1 WO2020143251 A1 WO 2020143251A1 CN 2019108096 W CN2019108096 W CN 2019108096W WO 2020143251 A1 WO2020143251 A1 WO 2020143251A1
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WO
WIPO (PCT)
Prior art keywords
sliding
axle box
sealing
ring
axle
Prior art date
Application number
PCT/CN2019/108096
Other languages
English (en)
Chinese (zh)
Inventor
魏家麒
于祥
杨欣
陈硕
王旭
Original Assignee
中车青岛四方机车车辆股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中车青岛四方机车车辆股份有限公司 filed Critical 中车青岛四方机车车辆股份有限公司
Priority to ES19908343T priority Critical patent/ES2958919T3/es
Priority to JP2021546033A priority patent/JP7066259B2/ja
Priority to EP19908343.7A priority patent/EP3909829B1/fr
Priority to PL19908343.7T priority patent/PL3909829T3/pl
Priority to RU2021106253A priority patent/RU2759204C1/ru
Publication of WO2020143251A1 publication Critical patent/WO2020143251A1/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 disclosure relates to the technical field of variable gauge of rail vehicles, in particular to a sealing device for a variable gauge wheelset and a variable gauge wheelset.
  • variable gauge wheelsets are proposed, that is, when the train travels to the railways of other countries, by changing the The distance between them is adapted to the gauge of other countries' railways.
  • the present disclosure aims to solve at least one of the technical problems existing in the prior art or related technologies.
  • the purpose of the present disclosure is to provide a sealing device for a gauge-changing wheelset to seal between the sliding mechanism and the axle box body, improve the sealing environment, and improve the sealing effect.
  • the embodiments of the present disclosure provide a sealing device for a variable gauge wheelset, the sealing device is used for a sliding mechanism provided on the variable gauge wheelset and an axle box rear cover of an axle box body Between, the sliding mechanism can move axially relative to the axle box body, and can rotate relative to the axle box body, the sealing device includes a sliding seal and a rotating seal, the sliding seal includes A sliding ring sleeved outside the sliding mechanism and sealingly connected to the rear cover of the axle box, 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 The convex part of the through groove sliding fit; the rotating seal includes a sealing baffle fixed on the outer side of the rear cover of the axle box, an outer wall of the sliding ring is circumferentially provided with an annular groove, and the lower end of the sealing baffle extends into In the annular groove.
  • the embodiment of the present disclosure further includes a first seal ring, the rear cover of the axle box is provided with an axial through hole, and the rear cover of the axle box is provided with a first mounting groove on the inner periphery of the axial through hole, The outer circumference of the first seal ring is installed in the first installation groove with interference, and the inner circumference of the first seal ring is pressed against the outer circumference of the sliding ring.
  • a positioning groove is axially provided on the outer wall of the sliding mechanism, and a positioning key protruding from the positioning groove is placed in the positioning groove to form the convex portion.
  • 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 convex portions corresponding one-to-one with the through grooves.
  • the inner wall of the sliding ring is circumferentially provided with two through-grooves, and the two through-grooves are provided on two radial sides of the inner wall of the sliding ring.
  • the sealing baffle includes a first baffle and a second baffle that are docked to form an annular shape, and the inner circumference after the first baffle and the second baffle are located in the annular shape of the sliding ring In the slot.
  • the cross sections of the first baffle and the second baffle are both L-shaped, and the short sides of the L-shaped are fastened on the outer periphery of the rear cover of the axle box by fasteners, the The long side of the L-shape is set close to the outer side of the rear cover of the axle box.
  • a second sealing ring is provided between the sliding ring and the sliding mechanism, and the second sealing ring is fixedly sleeved in a second mounting groove on the outer periphery of the sliding mechanism.
  • An embodiment of the present disclosure also provides a variable gauge wheelset, including a slip mechanism, an axle box body, and the above-mentioned sealing device for the variable gauge wheelset.
  • the sealing device is provided on the sliding mechanism and Between the rear cover of the axle box of the axle box body is used for the axial sliding seal and the rotary seal of the sliding mechanism.
  • the embodiment of the present disclosure further includes wheels and axles, the wheels are slidably provided at both ends of the axle, the slip mechanisms are respectively connected to the wheels, and the axles located at both ends of the axle
  • the wheels are unlocked and locked by the sliding mechanism
  • the sliding mechanism includes an inner sleeve, the inner sleeve is sleeved on the axle and cooperates with the axle gap
  • the The sealing device is provided between the inner sleeve and the axle box rear cover of the axle box body.
  • the present disclosure has the following advantages:
  • An embodiment of the present disclosure provides a sealing device for a variable gauge wheelset.
  • the sealing device is provided between a sliding mechanism of the variable gauge wheelset and an axle box rear cover of the axle box body.
  • the sealing device The sliding seal includes a sliding seal and a rotating seal.
  • the sliding seal includes a sliding ring sleeved outside the sliding mechanism and sealingly connected to the rear cover of the axle box.
  • the inner wall of the sliding ring is axially provided Through slot, the outer wall of the sliding mechanism is axially provided with a convex portion that slidingly cooperates with the through slot, when the sliding mechanism moves, the convex portion moves along the through slot, thereby ensuring that the sliding ring and the sliding mechanism can rotate together , And the two can slide relative to each other in the axial direction;
  • the rotating seal includes a sealing baffle fixed on the outer side of the rear cover of the axle box, 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, so that the sliding ring can only rotate circumferentially relative to the rear cover of the axle box, and can only axially slide relative to the sliding mechanism;
  • the sealing device decouples the double-degree-of-freedom seal into a two-level single-degree-of-freedom seal, and each layer
  • FIG. 1 is an axial cross-sectional view of a sealing device for a gauge-changing wheelset according to an embodiment of the present disclosure
  • FIG. 2 is a partial enlarged view of A in FIG. 1;
  • FIG. 3 is a front view of a sliding ring in a sealing device for a gauge-changing wheelset according to an embodiment of the present disclosure
  • FIG. 4 is a cross-sectional view of A-A in FIG. 3;
  • axle box body 1: axle box body; 2: axle box back 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.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • an embodiment of the present disclosure provides a sealing device for a variable gauge wheelset.
  • the variable gauge wheelset includes a slip mechanism 3 and an axle box body 1, and the slip mechanism 3 may be opposite To move back and forth in the axial direction of the axle box body 1 to meet the requirements of variable gauge, in order to ensure the basic sealing requirements of the axle box body 1, the axle box body 1 has an axle box front cover at one end and an axle box rear cover at the other end 2.
  • the slip mechanism 3 is located in the axle box body 1 and is connected to the wheel through the axle box rear cover 2.
  • the sealing device is used to provide Between the sliding mechanism 3 of the variable gauge wheelset and the axle box rear cover 2 of the axle box body 1; specifically, the sealing device includes a sliding seal and a rotating seal, and the sliding seal includes a sleeve A sliding ring 4 outside the sliding mechanism 3 and sealingly connected to the rear cover 2 of the axle box, as shown in FIG.
  • an inner wall of the sliding ring 4 is provided with a through groove 41 in the axial direction, and the sliding mechanism
  • the outer wall of the 3 is axially provided with a convex portion that slidingly cooperates with the through slot 41.
  • the outer wall of the sliding ring 4 is circumferentially provided with an annular groove 42,
  • the 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, so that the sliding ring 4 can only circumferentially occur with respect to the rear cover 2 of the axle box Rotation, relative to the sliding mechanism 3, can only axially slide.
  • the present disclosure improves the sealing environment by decoupling the double-degree-of-freedom seal into a two-level single-degree-of-freedom seal, each layer of seal is only for relative translation or relative rotation, Improving the sealing effect is also conducive to the optimization of seals under a single influencing factor, and finally achieves the sealing of the compound degree of freedom structure.
  • the first seal ring 6 may be a rubber seal ring.
  • the axle box rear cover 2 is provided with an axial through hole, and the axle box rear cover 2 is provided with a first mounting groove on the inner periphery of the axial through hole, the first mounting groove is in a ring shape, and the first sealing ring.
  • the outer circumference of 6 is installed in the first mounting groove with interference, the inner circumference of the first sealing ring 6 is pressed against the outer circumference of the sliding ring 4, when the sliding ring 4 rotates, the outer circumference of the sliding ring 4 and the first A sealing ring 6 can be rotatably sealed.
  • the outer wall of the sliding mechanism 3 is provided with a positioning groove in the axial direction.
  • a positioning key 34 protruding from the positioning groove is placed in the positioning groove.
  • the length of the positioning key matches the length of the positioning groove, 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, the upper surface of the positioning key 34 is higher than the positioning groove to form the convex portion,
  • the convex portion enables the sliding ring 4 to rotate together with the sliding mechanism 3, and the convex portion does not restrict the axial movement of the sliding mechanism 3.
  • the inner wall of the sliding ring 4 may be provided with a through groove 41 in the circumferential direction, but in order to ensure the balanced force of the sliding ring 4, the inner wall of the sliding ring 4 is preferably provided with a plurality of through grooves in the circumferential direction 41.
  • a plurality of through grooves 41 may be uniformly distributed in the circumferential direction of the inner wall of the sliding ring 4.
  • the outer wall of the sliding mechanism 3 is provided with the convex portions corresponding to the through grooves 41 in a circumferential direction.
  • the inner wall of the sliding ring 4 is circumferentially provided with two through grooves 41, and the two through grooves 41 are arranged on both sides in the radial direction of the inner wall of the sliding ring 4.
  • the sealing baffle 5 includes a first baffle and a second baffle that are butted to form a ring.
  • the sealing baffle 5 is divided into a first baffle and a second baffle to facilitate installation from up and down directions.
  • the inner periphery of the butt joint of the first baffle and the second baffle is located in the annular groove of the sliding ring 4 In 42, when the slide ring 4 rotates, the inner circumferences of the first and second baffles are sealed with the annular groove 42 in rotation.
  • the cross-sections of the first baffle and the second baffle are specifically L-shaped in radial cross-section, and the short sides of the L-shaped are fastened to the On the outer periphery of the axle box rear cover 2, the long side of the L-shape is disposed close to the outer side of the axle box rear cover 2 and extends into the annular groove 42.
  • the sliding ring 4 and the sliding mechanism 3 are provided with A second sealing ring 7, such as a rubber O-ring, is fixedly sleeved in the second mounting groove on the outer periphery of the sliding mechanism 3, and when the sliding ring 4 moves, the inner periphery of the sliding ring 4 It is in sealing contact with the second sealing ring 7 to further improve the sealing effect.
  • a second sealing ring 7 such as a rubber O-ring
  • An embodiment of the present disclosure also provides a gauge-changing wheelset, including a sliding mechanism 3, an axle box body 1 and the above-mentioned sealing device for a gauge-changing wheelset, the sealing device is provided on the slippage
  • the mechanism 3 and the axle box rear cover 2 of the axle box body 1 are used for the axial sliding seal and the rotary seal of the sliding mechanism 3.
  • the present disclosure decomposes the degrees of freedom for each single degree of freedom Sealing separately reduces the difficulty of sealing, and ensures the high-speed running performance of variable gauge wheelsets while ensuring the sealing performance of multi-degree-of-freedom movements.
  • the wheel and the axle 8 are further included.
  • the wheel is slidably provided at both ends of the axle 8.
  • the inner circumference of the wheel is provided with an internal spline.
  • the two ends of the axle 8 are respectively provided with external splines.
  • the wheels and the two ends of the axle 8 are connected by the internal splines and the external splines, which is not only convenient for transmitting torque, but also convenient for the wheels to move.
  • the sliding mechanism 3 is respectively The wheels are connected and located in the axle box 1 at both ends of the axle 8, the wheels are unlocked and locked by the sliding mechanism 3, the sliding mechanism 3 includes an inner sleeve 31, the The inner sleeve 31 is sleeved on the axle 8 and is in clearance fit with the axle 8.
  • the sealing device is provided between the inner sleeve 31 and the axle box rear cover 2 of the axle box body 1, thereby,
  • the convex portion is provided outside the inner sleeve 31, and the positioning groove is provided on the inner sleeve 31;
  • the inner sleeve 31 extends out of the axle box 1 toward one end of the wheel and is fastened to the wheel by fasteners Fixed connection, there is a gauge changing space between the extended end of the inner sleeve 31 and the axle 8 to ensure that the inner sleeve 31 has a sufficient distance to move along the axle 8 when changing the gauge, without It will interfere with the axle 8;
  • the sliding mechanism 3 further includes a rolling bearing 32 and an outer sleeve 33.
  • the inner sleeve 31, the rolling bearing 32 and the outer sleeve 33 are closely sleeved sequentially from inside to outside.
  • the inner sleeve 31 and the inner ring of the rolling bearing 32 rotate together with the wheel.
  • 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 housing 1 are in clearance fit to facilitate the outer The sleeve 33, the inner sleeve 31, and the rolling bearing 32 move along the axle housing 1 as a whole.
  • the present disclosure reduces the difficulty of sealing by decomposing the degrees of freedom and sealing each single degree of freedom separately, and guarantees the variable gauge wheels while ensuring the sealing performance of multi-degree of freedom movement High-speed performance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Processing Or Creating Images (AREA)
  • Image Generation (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Gasket Seals (AREA)
  • Sealing Of Bearings (AREA)

Abstract

La présente invention concerne un appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et un ensemble roue à jauge variable ; l'appareil d'étanchéité est utilisé entre un mécanisme coulissant (3) disposé sur l'ensemble roue à jauge variable et un couvercle arrière (2) de boîte d'essieu d'un corps de boîte d'essieu (1) ; ledit mécanisme coulissant (3) peut se déplacer 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 comprend un élément d'étanchéité coulissant et un élément d'étanchéité rotatif ; l'élément d'étanchéité coulissant comprend un anneau coulissant (4) emmanché à l'extérieur du mécanisme coulissant (3) et relié de manière étanche au couvercle arrière (2) de la boîte d'essieu ; la paroi interne de l'anneau coulissant (4) est pourvue d'une rainure traversante (41) dans le sens axial ; la paroi externe du mécanisme coulissant (3) est axialement pourvue d'une partie faisant saillie qui s'ajuste de manière coulissante à ladite rainure traversante (41) ; le joint rotatif comprend une plaque de retenue d'étanchéité (5) fixée sur l'extérieur du couvercle arrière (2) de la boîte d'essieu ; la paroi externe de l'anneau coulissant (4) est disposée dans la circonférence avec une rainure annulaire (42) ; l'extrémité inférieure de la plaque de retenue d'étanchéité (5) s'étend dans ladite rainure annulaire (42). L'appareil d'étanchéité décrit peut assurer l'étanchéité entre le mécanisme coulissant (3) et le logement d'essieu (1), améliorant l'environnement étanche et améliorant la performance d'étanchéité.
PCT/CN2019/108096 2019-01-07 2019-09-26 Appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et ensemble roue à jauge variable WO2020143251A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES19908343T ES2958919T3 (es) 2019-01-07 2019-09-26 Aparato de estanqueidad utilizado para un juego de ruedas de cambio de ancho y juego de ruedas de cambio de ancho
JP2021546033A JP7066259B2 (ja) 2019-01-07 2019-09-26 軌間可変車輪セット用のシール装置および軌間可変車輪セット
EP19908343.7A EP3909829B1 (fr) 2019-01-07 2019-09-26 Appareil d'étanchéité utilisé pour un ensemble roue à jauge variable, et ensemble roue à jauge variable
PL19908343.7T PL3909829T3 (pl) 2019-01-07 2019-09-26 Urządzenie uszczelniające stosowane do zestawu kołowego o zmiennym rozstawie oraz zestaw kołowy o zmiennym rozstawie
RU2021106253A RU2759204C1 (ru) 2019-01-07 2019-09-26 Уплотняющее устройство для колесной пары с возможностью изменения ширины колеи и колесная пара с возможностью изменения ширины колеи

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
CN201910012719.X 2019-01-07

Publications (1)

Publication Number Publication Date
WO2020143251A1 true WO2020143251A1 (fr) 2020-07-16

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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

Country Status (7)

Country Link
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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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
CN108407839A (zh) * 2018-04-13 2018-08-17 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
CN109733434A (zh) * 2019-01-07 2019-05-10 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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EP3909829B1 (fr) 2023-09-06
CN109733434A (zh) 2019-05-10
ES2958919T3 (es) 2024-02-16
EP3909829A4 (fr) 2022-04-20
CN109733434B (zh) 2020-05-08
JP2022508782A (ja) 2022-01-19
EP3909829A1 (fr) 2021-11-17
PL3909829T3 (pl) 2024-02-26

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