WO2020143251A1 - Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset - Google Patents
Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset Download PDFInfo
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- 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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- Prior art keywords
- sliding
- axle box
- sealing
- ring
- axle
- Prior art date
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
- Gasket Seals (AREA)
Abstract
Provided are a sealing apparatus used for a variable gauge wheelset, and a variable gauge wheelset; the sealing apparatus is used between a sliding mechanism (3) disposed on the variable gauge wheelset and an axle-box rear cover (2) of an axle box body (1); said sliding mechanism (3) can move axially relative to the axle box body (1) and can rotate relative to the axle box body (1); the sealing apparatus comprises a sliding sealing member and a rotating sealing member; the sliding sealing member comprises a sliding ring (4) sleeved outside the sliding mechanism (3) and sealingly connected to the rear cover (2) of the axle box; the inner wall of the sliding ring (4) is provided with a through-groove (41) in the axial direction; the outer wall of the sliding mechanism (3) is axially provided with a protruding part which slidingly fits with said through-groove (41); the rotating seal comprises a sealing retaining plate (5) fixed on the outside of the rear cover (2) of the axle box; the outer wall of the sliding ring (4) is circumferentially provided with an annular groove (42); the lower end of the sealing retaining plate (5) extends into said annular groove (42). The described sealing apparatus can seal between the sliding mechanism (3) and the axle housing (1), improving the sealed environment and enhancing sealing performance.
Description
相关申请的交叉引用Cross-reference of related applications
本申请要求于2019年1月7日提交的申请号为201910012719.X,发明名称为“用于变轨距轮对的密封装置及变轨距轮对”的中国专利申请的优先权,其通过引用方式全部并入本公开。This application requires the priority of the Chinese patent application filed on January 7, 2019 with the application number 201910012719.X and the invention titled "Sealing Device for Variable Gauge Wheelsets and Variable Gauge Wheelsets", which passed All references are incorporated into this disclosure.
本公开涉及轨道车辆变轨距技术领域,特别是涉及一种用于变轨距轮对的密封装置及变轨距轮对。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.
随着全球经济一体化的飞速发展,跨国间的客货运输在近年来增长迅速,然而由于各国铁路的轨距不同,从而给跨国间的铁路运输造成严重的阻碍。为了解决各国铁路的轨距不同对跨国间的铁路运输造成阻碍的问题,对此提出了变轨距轮对,即当列车行驶到它国的铁路上时,通过改变自身轮对上的车轮之间的间距,来适应它国铁路的轨距。With the rapid development of global economic integration, cross-border passenger and freight transportation has grown rapidly in recent years. However, due to the different gauges of railways in various countries, it has caused serious obstacles to cross-border railway transportation. In order to solve the problem that the different rail gauges of various countries hinder the cross-border railway transportation, 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.
变轨过程中轮对上的滑移机构会随地面导向轨的推压相对轴箱体滑移,传统的密封结构无法适用于变轨距轮对,如何对滑移机构与轴箱体之间进行密封是亟需解决的问题。During the track change, the sliding mechanism on the wheelset will slide relative to the axle box body with the pushing of the ground guide rail. The traditional sealing structure cannot be applied to the track gauge wheelset. How to adjust the sliding mechanism to the axle box body Sealing is an urgent problem to be solved.
发明内容Summary of the invention
(一)要解决的技术问题(1) Technical problems to be solved
本公开旨在至少解决现有技术或相关技术中存在的技术问题之一。The present disclosure aims to solve at least one of the technical problems existing in the prior art or related technologies.
本公开的目的是提供一种用于变轨距轮对的密封装置,以对滑移机构与轴箱体之间进行密封,改善密封环境,提高密封效果。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.
(二)技术方案(2) Technical solution
为了解决上述技术问题,本公开实施例提供一种用于变轨距轮对的密封装置,所述密封装置用于设于变轨距轮对的滑移机构与轴箱体的轴箱后盖之间,所述滑移机构可相对于所述轴箱体轴向移动,且可相对于所述轴箱体转动,所述密封装置包括滑动密封件和转动密封件,所述滑动密封件 包括用于套设在所述滑移机构外且与所述轴箱后盖密封连接的滑动环,所述滑动环的内壁轴向设有通槽,所述滑移机构的外壁轴向设有与所述通槽滑动配合的凸部;所述转动密封件包括固定在所述轴箱后盖外侧的密封挡板,所述滑动环的外壁周向设有环形槽,所述密封挡板的下端延伸进所述环形槽中。In order to solve the above technical problems, 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.
本公开的实施例中,还包括第一密封圈,所述轴箱后盖设有轴向通孔,所述轴箱后盖位于所述轴向通孔的内周设有第一安装槽,所述第一密封圈的外周过盈安装在所述第一安装槽中,所述第一密封圈的内周压紧在所述滑动环的外周。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.
本公开的实施例中,所述滑移机构的外壁轴向设有定位槽,所述定位槽中放置有凸出所述定位槽的定位键,形成所述凸部。In an embodiment of the present disclosure, 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.
本公开的实施例中,所述滑动环的内壁周向设有多个所述通槽,所述滑移机构的外壁周向设有与所述通槽一一对应的所述凸部。In an embodiment of the present disclosure, the inner wall of the sliding ring is circumferentially provided with a plurality of the through grooves, and the outer wall of the sliding mechanism is circumferentially provided with the convex portions corresponding one-to-one with the through grooves.
本公开的实施例中,所述滑动环的内壁周向设有两个所述通槽,两个所述通槽分设于所述滑动环的内壁的径向两侧。In an embodiment of the present disclosure, 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.
本公开的实施例中,所述密封挡板包括对接形成环形的第一挡板和第二挡板,所述第一挡板和第二挡板对接后的内周位于所述滑动环的环形槽中。In an embodiment of the present disclosure, 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.
本公开的实施例中,所述第一挡板和第二挡板的截面均呈L型,所述L型的短边通过紧固件紧固在所述轴箱后盖的外周,所述L型的长边贴近所述轴箱后盖的外侧设置。In the embodiment of the present disclosure, 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.
本公开的实施例中,所述滑动环与所述滑移机构之间设有第二密封圈,所述第二密封圈固定套设在所述滑移机构外周的第二安装槽中。In an embodiment of the present disclosure, 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.
本公开实施例还提供一种变轨距轮对,包括滑移机构、轴箱体以及上述所述的用于变轨距轮对的密封装置,所述密封装置设于所述滑移机构与所述轴箱体的轴箱后盖之间,用于所述滑移机构的轴向滑动密封和转动密封。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.
本公开的实施例中,还包括车轮和车轴,所述车轮可滑动地设于所述车轴的两端,所述滑移机构分别与所述车轮连接,且位于所述车轴两端的所述轴箱体中,所述车轮通过所述滑移机构实现解锁与锁紧,所述滑移机 构包括内套筒,所述内套筒套设在所述车轴上与所述车轴间隙配合,所述密封装置设于所述内套筒与所述轴箱体的轴箱后盖之间。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 In the box, 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.
(三)有益效果(3) Beneficial effects
与现有技术相比,本公开具有以下优点:Compared with the prior art, the present disclosure has the following advantages:
本公开实施例提供的一种用于变轨距轮对的密封装置,所述密封装置设于变轨距轮对的滑移机构与轴箱体的轴箱后盖之间;所述密封装置包括滑动密封件和转动密封件,所述滑动密封件包括用于套设在所述滑移机构外且与所述轴箱后盖密封连接的滑动环,所述滑动环的内壁轴向设有通槽,所述滑移机构的外壁轴向设有与所述通槽滑动配合的凸部,在滑移机构移动时,凸部沿通槽移动,从而保证滑动环与滑移机构能够共同旋转,且两者可以沿轴向相对滑动;所述转动密封件包括固定在所述轴箱后盖外侧的密封挡板,所述滑动环的外壁周向设有环形槽,所述密封挡板的下端延伸进所述环形槽中,为滑动环提供轴向定位,使得滑动环没有轴向移动,从而滑动环相对轴箱后盖仅能发生周向旋转,相对于滑移机构仅能发生轴向滑动;该密封装置通过将双自由度密封解耦成两级单自由度密封,每层密封仅针对相对平动或相对旋转,从而改善密封环境,提高密封效果,也有利于密封件在单一影响因素下的优化,最终实现复合自由度结构的密封。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 of seal is only for relative translation or relative rotation, thereby improving the sealing environment, improving the sealing effect, and also conducive to the seal under a single influencing factor Optimization, and finally achieve the sealing of the compound degree of freedom structure.
图1为本公开实施例一种用于变轨距轮对的密封装置的轴向剖视图;1 is an axial cross-sectional view of a sealing device for a gauge-changing wheelset according to an embodiment of the present disclosure;
图2为图1中A的局部放大图;FIG. 2 is a partial enlarged view of A in FIG. 1;
图3为本公开实施例一种用于变轨距轮对的密封装置中滑动环的主视图;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;
图4为图3中A-A剖视图;4 is a cross-sectional view of A-A in FIG. 3;
图中:1:轴箱体;2:轴箱后盖;3:滑移机构;31:内套筒;32:滚动轴承;33;外套筒;34:定位键;4:滑动环;41:通槽;42:环形槽;5:密封挡板;6:第一密封圈;7:第二密封圈;8:车轴。In the picture: 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.
下面结合附图和实施例,对本公开的具体实施方式作进一步详细描述。以下实施例用于说明本公开,但不用来限制本公开的范围。The specific implementation of the present disclosure will be further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present disclosure, but not to limit the scope of the present disclosure.
在本公开的描述中,需要说明的是,术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本公开和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本公开的限制。此外,术语“第一”、“第二”、“第三”等仅用于描述目的,而不能理解为指示或暗示相对重要性。In the description of the present disclosure, it should be noted that the terms "center", "portrait", "landscape", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc. is based on the orientation or positional relationship shown in the drawings, just for the convenience of describing the present disclosure and simplifying The description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the present disclosure. In addition, the terms "first", "second", "third", etc. are for descriptive purposes only and cannot be understood as indicating or implying relative importance.
在本公开的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以视具体情况理解上述术语在本公开中的具体含义。In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "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. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure may be understood as appropriate.
此外,在本公开的描述中,除非另有说明,“多个”、“多根”、“多组”的含义是两个或两个以上。In addition, in the description of the present disclosure, unless otherwise stated, the meanings of "plurality", "multiple roots", and "multiple groups" are two or more.
如图1-图4所示,本公开实施例提供了一种用于变轨距轮对的密封装置,变轨距轮对包括滑移机构3与轴箱体1,滑移机构3可相对于轴箱体1的轴向来回移动,以适应变轨距要求,为了保证轴箱体1基本的密封要求,轴箱体1的一端设有轴箱前盖,另一端设有轴箱后盖2,滑移机构3位于轴箱体1中并穿出轴箱后盖2与车轮连接,在变轨距轮对正常运行过程中,滑移机构3随车轮一起转动,轴箱体1相对固定,从而滑移机构3可相对于所述轴箱体1转动,也就是说,滑移机构3具有旋转自由度和沿轴箱体1移动的平动自由度,所述密封装置用于设于变轨距轮对的滑移机构3与轴箱体1的轴箱后盖2之间;具体地,所述密封装置包括滑动密封件和转动密封件,所述滑动密封件包括用于套设在所述滑移机构3外且与所述轴箱后盖2密封连接的滑动环4,如图3所示,所述滑动环4的内壁轴向设有通槽41,所述滑移机构3的外壁轴向设有与所述通槽41滑动配合的凸部,在滑移机构3移动时,凸部沿通槽41移动,从而保证滑动环4与滑移机构3能够共同旋转,且两者可以沿轴向相对滑动;所述转动密封件包括固定在所述轴箱后盖2外侧的密封挡板5,如图4所示,所述滑动 环4的外壁周向设有环形槽42,所述密封挡板5的下端延伸进所述环形槽42中,为滑动环4提供轴向定位,使得滑动环4没有轴向移动,从而滑动环4相对轴箱后盖2仅能发生周向旋转,相对于滑移机构3仅能发生轴向滑动,本公开通过将双自由度密封解耦成两级单自由度密封,每层密封仅针对相对平动或相对旋转,从而改善密封环境,提高密封效果,也有利于密封件在单一影响因素下的优化,最终实现复合自由度结构的密封。As shown in FIGS. 1-4, 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. During the normal operation of the gauge-changing wheelset, the slip mechanism 3 rotates with the wheel and the axle box body 1 is relatively fixed , So that the sliding mechanism 3 can rotate relative to the axle box 1, that is to say, the sliding mechanism 3 has rotational freedom and translational freedom along the axis box 1. 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. 3, 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. When the sliding mechanism 3 moves, the convex portion moves along the through slot 41, thereby ensuring that the sliding ring 4 and the sliding mechanism 3 can rotate together, and The two can slide relative to each other in the axial direction; the rotating seal includes a sealing baffle 5 fixed on the outer side of the rear cover 2 of the axle box. As shown in FIG. 4, 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.
本公开的实施例中,如图1所示,为了实现轴箱后盖2与滑动环4之间的密封连接,还包括第一密封圈6,第一密封圈6可以为橡胶密封圈,所述轴箱后盖2设有轴向通孔,所述轴箱后盖2位于所述轴向通孔的内周设有第一安装槽,第一安装槽呈环形,所述第一密封圈6的外周过盈安装在所述第一安装槽中,所述第一密封圈6的内周压紧在所述滑动环4的外周,在滑动环4转动时,滑动环4的外周与第一密封圈6可转动密封连接。In the embodiment of the present disclosure, as shown in FIG. 1, in order to achieve a sealed connection between the axle box rear cover 2 and the sliding ring 4, it further includes a first seal ring 6. 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.
本公开的实施例中,为了便于凸部的形成,所述滑移机构3的外壁轴向设有定位槽,所述定位槽中放置有凸出所述定位槽的定位键34,定位键34的长度与定位槽的长度相匹配,定位键34的厚度大于定位槽的深度,从而定位键34安装在定位槽中后,定位键34的上表面高出定位槽,以形成所述凸部,通过所述凸部能够使得滑动环4与滑移机构3一起转动,且凸部并不限制滑移机构3的轴向移动。In the embodiment of the present disclosure, in order to facilitate the formation of the convex portion, 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.
本公开的实施例中,滑动环4的内壁周向可以设有一个通槽41,但是为了确保滑动环4受力均衡,所述滑动环4的内壁周向优选设有多个所述通槽41,多个通槽41可以均布在滑动环4的内壁周向,所述滑移机构3的外壁周向设有与所述通槽41一一对应的所述凸部。In the embodiment of the present disclosure, 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.
本公开的实施例中,为了结构简化,所述滑动环4的内壁周向设有两个所述通槽41,两个所述通槽41分设于所述滑动环4的内壁的径向两侧。In the embodiment of the present disclosure, for simplicity of the structure, 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.
本公开的实施例中,为了配合滑动环4外的环形槽42,对环形槽42的周向全面密封,所述密封挡板5包括对接形成环形的第一挡板和第二挡板,将密封挡板5分设为第一挡板和第二挡板,以便于从上下两个方向安装,所述第一挡板和第二挡板对接后的内周位于所述滑动环4的环形槽42中,当滑动环4转动时,所述第一挡板和第二挡板的内周与环形槽42转动密封。In the embodiment of the present disclosure, in order to cooperate with the annular groove 42 outside the sliding ring 4, the circumferential direction of the annular groove 42 is fully sealed. 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.
本公开的实施例中,具体地,所述第一挡板和第二挡板的截面具体为径向截面均呈L型,所述L型的短边通过紧固件例如螺栓紧固在所述轴箱后盖2的外周,所述L型的长边贴近所述轴箱后盖2的外侧设置,并延伸进环形槽42中。In the embodiments of the present disclosure, specifically, 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.
本公开的实施例中,滑动环4与滑移机构3之间为狭长的小间隙,本身具备迷宫作用,如图2所示,所述滑动环4与所述滑移机构3之间设有第二密封圈7,例如橡胶O型密封圈,所述第二密封圈7固定套设在所述滑移机构3外周的第二安装槽中,滑动环4移动时,滑动环4的内周与第二密封圈7密封接触,以进一步提高密封效果。In the embodiment of the present disclosure, there is a narrow and narrow gap between the sliding ring 4 and the sliding mechanism 3, which itself has a labyrinth effect. As shown in FIG. 2, 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.
本公开实施例还提供一种变轨距轮对,包括滑移机构3、轴箱体1以及上述所述的用于变轨距轮对的密封装置,所述密封装置设于所述滑移机构3与所述轴箱体1的轴箱后盖2之间,用于所述滑移机构3的轴向滑动密封和转动密封,本公开通过对自由度进行分解,针对每个单一自由度分别进行密封,降低了密封难度,在保证多自由度运动的密封性能的情况下保证了变轨距轮对的高速运行性能。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.
本公开的实施例中,如图1所示,还包括车轮和车轴8,所述车轮可滑动地设于所述车轴8的两端,具体他,车轮的内周设有内花键,所述车轴8的两端分别设有外花键,车轮与车轴8的两端通过内花键与外花键配合连接,既便于传递扭矩,也便于车轮移动,所述滑移机构3分别与所述车轮连接,且位于所述车轴8两端的所述轴箱体1中,所述车轮通过所述滑移机构3实现解锁与锁紧,所述滑移机构3包括内套筒31,所述内套筒31套设在所述车轴8上与所述车轴8间隙配合,所述密封装置设于所述内套筒31与所述轴箱体1的轴箱后盖2之间,从而,凸部设于内套筒31外,定位槽设于内套筒31上;所述内套筒31朝向所述车轮的一端延伸出所述轴箱体1且与所述车轮通过紧固件紧固连接,所述内套筒31的延伸端与所述车轴8之间留有轨距变换空间,以保证在变轨距时,内套筒31有足够的沿车轴8移动的距离,而不会与车轴8发生干涉;所述滑移机构3还包括滚动轴承32和外套筒33,所述内套筒31、滚动轴承32和外套筒33由内向外依次紧密套接,在车轮转动时,内套筒31以及滚动轴承32的内圈随车轮一起转动,外套筒33与滚动轴承32的外圈保持相对固定,所述 外套筒33与所述轴箱体1的内表面间隙配合,便于外套筒33与内套筒31、滚动轴承32整体沿轴箱体1移动。通过在内套筒31与轴箱体1的轴箱后盖2间设置密封装置,实现内套筒31移动或转动时仍能实现良好密封,且每层密封仅针对相对平动或相对旋转,从而改善密封环境,提高密封效果。In the embodiment of the present disclosure, as shown in FIG. 1, the wheel and the axle 8 are further included. The wheel is slidably provided at both ends of the axle 8. Specifically, 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. When the wheel rotates, 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. By providing a sealing device between the inner sleeve 31 and the axle box rear cover 2 of the axle box body 1, a good seal can be achieved when the inner sleeve 31 moves or rotates, and each layer of seal is only for relative translation or relative rotation. Thereby improving the sealing environment and the sealing effect.
由以上实施例可以看出,本公开通过对自由度进行分解,针对每个单一自由度分别进行密封,降低了密封难度,在保证多自由度运动的密封性能的情况下保证了变轨距轮对的高速性能。As can be seen from the above embodiments, 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.
以上所述仅为本公开的较佳实施例而已,并不用以限制本公开,凡在本公开的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本公开的保护范围之内。The above are only the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the present disclosure. Within the scope of protection.
Claims (10)
- 一种用于变轨距轮对的密封装置,其特征在于,所述密封装置用于设于变轨距轮对的滑移机构与轴箱体的轴箱后盖之间,所述滑移机构可相对于所述轴箱体轴向移动,且可相对于所述轴箱体转动,所述密封装置包括滑动密封件和转动密封件,所述滑动密封件包括用于套设在所述滑移机构外且与所述轴箱后盖密封连接的滑动环,所述滑动环的内壁轴向设有通槽,所述滑移机构的外壁轴向设有与所述通槽滑动配合的凸部;所述转动密封件包括固定在所述轴箱后盖外侧的密封挡板,所述滑动环的外壁周向设有环形槽,所述密封挡板的下端延伸进所述环形槽中。A sealing device for a variable gauge wheelset is characterized in that the sealing device is used between a sliding mechanism of the variable gauge wheelset and the axle box rear cover of the axle box body. The mechanism can move axially with respect to the axle box body and can rotate with respect to the axle box body. The sealing device includes a sliding seal and a rotating seal. The sliding seal includes A sliding ring 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 slot, and an outer wall of the sliding mechanism is axially provided with a sliding fit with the through slot The convex portion; the rotary 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 a lower end of the sealing baffle extends into the annular groove.
- 根据权利要求1所述的用于变轨距轮对的密封装置,其特征在于,还包括第一密封圈,所述轴箱后盖设有轴向通孔,所述轴箱后盖位于所述轴向通孔的内周设有第一安装槽,所述第一密封圈的外周过盈安装在所述第一安装槽中,所述第一密封圈的内周压紧在所述滑动环的外周。The sealing device for a gauge-changing wheelset according to claim 1, further comprising a first seal ring, the axle box rear cover is provided with an axial through hole, and the axle box rear cover is located at A first mounting groove is provided on the inner circumference 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 slide The outer circumference of the ring.
- 根据权利要求1所述的用于变轨距轮对的密封装置,其特征在于,所述滑移机构的外壁轴向设有定位槽,所述定位槽中放置有凸出所述定位槽的定位键,形成所述凸部。The sealing device for a gauge-changing wheelset according to claim 1, wherein the outer wall of the sliding mechanism is provided with a positioning groove in the axial direction, and the positioning groove protrudes from the positioning groove The positioning key forms the convex portion.
- 根据权利要求1所述的用于变轨距轮对的密封装置,其特征在于,所述滑动环的内壁周向设有多个所述通槽,所述滑移机构的外壁周向设有与所述通槽一一对应的所述凸部。The sealing device for a variable gauge wheelset according to claim 1, wherein a plurality of the through grooves are circumferentially provided on the inner wall of the sliding ring, and the The convex portions correspond to the grooves one by one.
- 根据权利要求4所述的用于变轨距轮对的密封装置,其特征在于,所述滑动环的内壁周向设有两个所述通槽,两个所述通槽分设于所述滑动环的内壁的径向两侧。The sealing device for a gauge-changing wheelset according to claim 4, wherein the inner wall of the sliding ring is provided with two of the through grooves in the circumferential direction, and the two through grooves are provided on the sliding ring Radial sides of the inner wall.
- 根据权利要求1所述的用于变轨距轮对的密封装置,其特征在于,所述密封挡板包括对接形成环形的第一挡板和第二挡板,所述第一挡板和第二挡板对接后的内周位于所述滑动环的环形槽中。The sealing device for a variable gauge wheelset according to claim 1, wherein the sealing baffle includes a first baffle and a second baffle that are butted to form an annular shape, the first baffle and the second baffle The inner periphery of the two baffles after docking is located in the annular groove of the sliding ring.
- 根据权利要求6所述的用于变轨距轮对的密封装置,其特征在于,所述第一挡板和第二挡板的截面均呈L型,所述L型的短边通过紧固件紧固在所述轴箱后盖的外周,所述L型的长边贴近所述轴箱后盖的外侧设置。The sealing device for a variable gauge wheelset according to claim 6, wherein the cross sections of the first baffle and the second baffle are both L-shaped, and the short sides of the L-shaped baffle are fastened by The piece is fastened on the outer periphery of the rear cover of the axle box, and the long side of the L-shape is arranged close to the outer side of the rear cover of the axle box.
- 根据权利要求1所述的用于变轨距轮对的密封装置,其特征在于,所述滑动环与所述滑移机构之间设有第二密封圈,所述第二密封圈固定套 设在所述滑移机构外周的第二安装槽中。The sealing device for a variable gauge wheelset according to claim 1, wherein a second sealing ring is provided between the sliding ring and the sliding mechanism, and the second sealing ring is fixedly sleeved In the second mounting groove on the outer periphery of the sliding mechanism.
- 一种变轨距轮对,其特征在于,包括滑移机构、轴箱体以及如权利要求1-8任一项所述的用于变轨距轮对的密封装置,所述密封装置设于所述滑移机构与所述轴箱体的轴箱后盖之间,用于所述滑移机构的轴向滑动密封和转动密封。A gauge-changing wheelset, characterized by comprising a sliding mechanism, an axle box body, and a sealing device for a gauge-changing wheelset according to any one of claims 1-8, the sealing device being provided at The sliding mechanism and the axle box rear cover of the axle box body are used for the axial sliding seal and rotary seal of the sliding mechanism.
- 根据权利要求9所述的变轨距轮对,其特征在于,还包括车轮和车轴,所述车轮可滑动地设于所述车轴的两端,所述滑移机构分别与所述车轮连接,且位于所述车轴两端的所述轴箱体中,所述车轮通过所述滑移机构实现解锁与锁紧,所述滑移机构包括内套筒,所述内套筒套设在所述车轴上与所述车轴间隙配合,所述密封装置设于所述内套筒与所述轴箱体的轴箱后盖之间。The variable gauge wheelset according to claim 9, further comprising a wheel and an axle, the wheel is slidably provided at both ends of the axle, and the sliding mechanisms are respectively connected to the wheels, And in the axle box bodies at both ends of the axle, the wheels are unlocked and locked by the slip mechanism, the slip mechanism includes an inner sleeve, and the inner sleeve is sleeved on the axle The upper is in clearance fit with the axle, and the sealing device is provided between the inner sleeve and the axle box rear cover of the axle box body.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19908343.7A EP3909829B1 (en) | 2019-01-07 | 2019-09-26 | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset |
ES19908343T ES2958919T3 (en) | 2019-01-07 | 2019-09-26 | Sealing device used for width change wheel set and width change wheel set |
PL19908343.7T PL3909829T3 (en) | 2019-01-07 | 2019-09-26 | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset |
RU2021106253A RU2759204C1 (en) | 2019-01-07 | 2019-09-26 | Sealing device for wheel set with the possibility of changing track width and wheel set with the possibility of changing track width |
JP2021546033A JP7066259B2 (en) | 2019-01-07 | 2019-09-26 | Sealing device for variable gauge wheel set and variable gauge wheel set |
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CN201910012719.X | 2019-01-07 | ||
CN201910012719.XA CN109733434B (en) | 2019-01-07 | 2019-01-07 | Sealing device for track-variable wheel set and track-variable wheel set |
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WO2020143251A1 true WO2020143251A1 (en) | 2020-07-16 |
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PCT/CN2019/108096 WO2020143251A1 (en) | 2019-01-07 | 2019-09-26 | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset |
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EP (1) | EP3909829B1 (en) |
JP (1) | JP7066259B2 (en) |
CN (1) | CN109733434B (en) |
ES (1) | ES2958919T3 (en) |
PL (1) | PL3909829T3 (en) |
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WO (1) | WO2020143251A1 (en) |
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CN109733434B (en) * | 2019-01-07 | 2020-05-08 | 中车青岛四方机车车辆股份有限公司 | Sealing device for track-variable wheel set and track-variable wheel set |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004332905A (en) * | 2003-05-12 | 2004-11-25 | Ntn Corp | Bearing device for rail vehicle |
CN104340237A (en) * | 2013-07-31 | 2015-02-11 | Skf公司 | Railway axlebox assembly and railway axlebox including the same |
CN107856693A (en) * | 2017-11-23 | 2018-03-30 | 中车长春轨道客车股份有限公司 | The EMU power wheel set axle box device of quasi- broad gage conversion |
CN107856692A (en) * | 2017-11-23 | 2018-03-30 | 中车长春轨道客车股份有限公司 | For realizing the wheelslip device of quasi- arrow gauge conversion |
CN207191061U (en) * | 2017-09-01 | 2018-04-06 | 西南交通大学 | A kind of latch assembly applied to gauge-changeable bogie |
CN108407839A (en) * | 2018-04-13 | 2018-08-17 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing structure for gauge-changeable wheelsets |
CN109733434A (en) * | 2019-01-07 | 2019-05-10 | 中车青岛四方机车车辆股份有限公司 | Sealing device and gauge-changeable wheelsets for gauge-changeable wheelsets |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9400995U1 (en) * | 1994-01-21 | 1994-03-31 | FAG Kugelfischer Georg Schäfer AG, 97421 Schweinfurt | Sealing system |
NL1008681C2 (en) * | 1998-03-23 | 1999-09-24 | Skf Eng & Res Centre Bv | Train bearing unit with improved anti-frictional corrosion behavior. |
JP3717427B2 (en) | 2001-06-28 | 2005-11-16 | シャープ株式会社 | Image forming apparatus |
JP4216000B2 (en) | 2002-05-15 | 2009-01-28 | 財団法人鉄道総合技術研究所 | Wheel shaft and bogie with variable gauge mechanism |
DE102005016705A1 (en) * | 2005-04-12 | 2006-10-19 | Schaeffler Kg | Cartridge seal for rail vehicle, has seal carrier ring with elastomer seal, and centrifuge ring, where height constant axial gap is provided between short profile side of simultaneously rotatable centrifuge rings and ring surface of seal |
RU2309071C2 (en) * | 2006-01-25 | 2007-10-27 | Гимадиев Фарит Шайхиевич | Device to change extensible wheelsets from one gauge to the other |
UA87904C2 (en) * | 2007-10-29 | 2009-08-25 | Восточноукраинский Национальный Университет Имени Владимира Даля | extensible wheel pair of railroad transport vehicle |
RU2369503C1 (en) * | 2008-03-03 | 2009-10-10 | Гимадиев Фарит Шайхиевич | Device to transfer extension wheel pairs from one track onto another |
UA95509C2 (en) * | 2009-08-26 | 2011-08-10 | Акционерное Общество "У.П.Э.К." | Axle box bearing assembly |
US9789887B2 (en) * | 2015-05-11 | 2017-10-17 | Aktiebolaget Skf | Backing ring assembly for railcar axle bearings |
FR3060504B1 (en) * | 2016-12-16 | 2022-01-07 | Skf Ab | AXLE BOX FOR RAILWAY VEHICLE BOGIE AND RAILWAY BOGIE EQUIPPED WITH SUCH AN AXLE BOX |
CN108909360B (en) * | 2018-07-05 | 2021-08-24 | 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 |
CN108909358B (en) * | 2018-07-05 | 2021-09-10 | 中车青岛四方机车车辆股份有限公司 | Variable-gauge wheel set and variable-gauge bogie |
-
2019
- 2019-01-07 CN CN201910012719.XA patent/CN109733434B/en active Active
- 2019-09-26 RU RU2021106253A patent/RU2759204C1/en active
- 2019-09-26 JP JP2021546033A patent/JP7066259B2/en active Active
- 2019-09-26 EP EP19908343.7A patent/EP3909829B1/en active Active
- 2019-09-26 WO PCT/CN2019/108096 patent/WO2020143251A1/en unknown
- 2019-09-26 PL PL19908343.7T patent/PL3909829T3/en unknown
- 2019-09-26 ES ES19908343T patent/ES2958919T3/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004332905A (en) * | 2003-05-12 | 2004-11-25 | Ntn Corp | Bearing device for rail vehicle |
CN104340237A (en) * | 2013-07-31 | 2015-02-11 | Skf公司 | Railway axlebox assembly and railway axlebox including the same |
CN207191061U (en) * | 2017-09-01 | 2018-04-06 | 西南交通大学 | A kind of latch assembly applied to gauge-changeable bogie |
CN107856693A (en) * | 2017-11-23 | 2018-03-30 | 中车长春轨道客车股份有限公司 | The EMU power wheel set axle box device of quasi- broad gage conversion |
CN107856692A (en) * | 2017-11-23 | 2018-03-30 | 中车长春轨道客车股份有限公司 | For realizing the wheelslip device of quasi- arrow gauge conversion |
CN108407839A (en) * | 2018-04-13 | 2018-08-17 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing structure for gauge-changeable wheelsets |
CN109733434A (en) * | 2019-01-07 | 2019-05-10 | 中车青岛四方机车车辆股份有限公司 | Sealing device and gauge-changeable wheelsets for gauge-changeable wheelsets |
Also Published As
Publication number | Publication date |
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EP3909829B1 (en) | 2023-09-06 |
EP3909829A1 (en) | 2021-11-17 |
EP3909829A4 (en) | 2022-04-20 |
CN109733434A (en) | 2019-05-10 |
PL3909829T3 (en) | 2024-02-26 |
RU2759204C1 (en) | 2021-11-10 |
CN109733434B (en) | 2020-05-08 |
ES2958919T3 (en) | 2024-02-16 |
JP2022508782A (en) | 2022-01-19 |
JP7066259B2 (en) | 2022-05-13 |
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