CN109733434B - Sealing device for track-variable wheel set and track-variable wheel set - Google Patents
Sealing device for track-variable wheel set and track-variable wheel set Download PDFInfo
- Publication number
- CN109733434B CN109733434B CN201910012719.XA CN201910012719A CN109733434B CN 109733434 B CN109733434 B CN 109733434B CN 201910012719 A CN201910012719 A CN 201910012719A CN 109733434 B CN109733434 B CN 109733434B
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- Prior art keywords
- sealing
- sliding
- axle box
- ring
- axle
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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
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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
The invention relates to the field of variable gauge of railway vehicles, and provides a sealing device for a variable gauge wheel set and the variable gauge wheel set, wherein the sealing device is arranged between a slipping mechanism of the variable gauge wheel set and a rear axle box cover of an axle box body, the slipping mechanism can axially move relative to the axle box body and can rotate relative to the axle box body, the sealing device comprises a sliding sealing element and a rotating sealing element, the sliding sealing element comprises a sliding ring which is sleeved outside the slipping mechanism and is in sealing connection with the rear axle box cover, the inner wall of the sliding ring is axially provided with a through groove, and the outer wall of the slipping mechanism is axially provided with a convex part in sliding fit with the through groove; the rotary sealing piece comprises a sealing baffle fixed on the outer side of the axle box rear cover, an annular groove is formed in the circumferential direction of the outer wall of the sliding ring, and the lower end of the sealing baffle extends into the annular groove. The invention can seal the sliding mechanism and the shaft box body, improve the sealing environment and improve the sealing effect.
Description
Technical Field
The invention relates to the technical field of track distance changing of railway vehicles, in particular to a sealing device for a track distance changing wheel pair and the track distance changing wheel pair.
Background
With the rapid development of global economy integration, the transnational passenger and cargo transportation is rapidly increased in recent years, but due to different rail gauges of railways of different countries, the transnational railway transportation is seriously hindered. In order to solve the problem that different track gauges of railways of various countries obstruct transnational railway transportation, a track gauge-variable wheel set is proposed, namely, when a train runs to a railway of other countries, the track gauge of the railway of other countries is adapted by changing the distance between wheels on the wheel set.
The glide machanism on the rail transfer in-process wheel pair can slide along with the bulldozing relative axle box body of ground guide rail, and traditional seal structure can't be applicable to the variable gauge wheel pair, how to seal the problem that needs to solve between glide machanism and the axle box body urgently.
Disclosure of Invention
Technical problem to be solved
The present invention is directed to solving at least one of the problems of the prior art or the related art.
The invention aims to provide a sealing device for a variable-gauge wheel pair, which is used for sealing between a sliding mechanism and a shaft box body, improving the sealing environment and improving the sealing effect.
(II) technical scheme
In order to solve the technical problem, an embodiment of the present invention provides a sealing device for a variable-gauge wheel pair, where the sealing device is used between a slipping mechanism of the variable-gauge wheel pair and a rear axle box cover of an axle box body, the slipping mechanism is axially movable relative to the axle box body and is rotatable relative to the axle box body, the sealing device includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring that is used for being sleeved outside the slipping mechanism and is in sealed connection with the rear axle box cover, a through groove is axially formed in an inner wall of the sliding ring, and a convex portion that is in sliding fit with the through groove is axially formed on an outer wall of the slipping mechanism; the rotary sealing piece comprises a sealing baffle fixed on the outer side of the axle box rear cover, an annular groove is formed in the circumferential direction of the outer wall of the sliding ring, and the lower end of the sealing baffle extends into the annular groove.
In the embodiment of the invention, the automobile axle box further comprises a first sealing ring, the axle box rear cover is provided with an axial through hole, a first mounting groove is formed in the axle box rear cover and is positioned on the inner periphery of the axial through hole, the outer periphery of the first sealing ring is arranged in the first mounting groove in an interference fit mode, and the inner periphery of the first sealing ring is pressed on the outer periphery of the sliding ring.
In the embodiment of the invention, the outer wall of the sliding mechanism is axially provided with a positioning groove, and a positioning key protruding out of the positioning groove is placed in the positioning groove to form the convex part.
In the embodiment of the invention, the inner wall of the sliding ring is circumferentially provided with a plurality of through grooves, and the outer wall of the sliding mechanism is circumferentially provided with the convex parts which are in one-to-one correspondence with the through grooves.
In the embodiment of the invention, the inner wall of the sliding ring is circumferentially provided with two through grooves, and the two through grooves are respectively arranged on two radial sides of the inner wall of the sliding ring.
In an embodiment of the invention, the sealing baffle comprises a first baffle and a second baffle which are butted to form a ring, and the butted inner peripheries of the first baffle and the second baffle are positioned in the annular groove of the sliding ring.
In an embodiment of the invention, the first baffle and the second baffle are both L-shaped in cross section, the short side of the L-shape is fastened to the periphery of the axle box rear cover through a fastener, and the long side of the L-shape is arranged close to the outer side of the axle box rear cover.
In the embodiment of the invention, 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 the periphery of the sliding mechanism.
The embodiment of the invention also provides a track-variable wheel pair, which comprises a sliding mechanism, an axle box body and the sealing device for the track-variable wheel pair, wherein the sealing device is arranged between the sliding mechanism and the axle box rear cover of the axle box body and is used for axial sliding sealing and rotary sealing of the sliding mechanism.
In the embodiment of the invention, the automobile chassis further comprises wheels and an axle, wherein the wheels are slidably arranged at two ends of the axle, the sliding mechanisms are respectively connected with the wheels and are positioned in the axle box bodies at two ends of the axle, the wheels are unlocked and locked through the sliding mechanisms, the sliding mechanisms comprise inner sleeves, the inner sleeves are sleeved on the axle and are in clearance fit with the axle, and the sealing devices are arranged between the inner sleeves and the axle box rear covers of the axle box bodies.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
the sealing device for the variable-gauge wheel pair is arranged between a sliding mechanism of the variable-gauge wheel pair and an axle box rear cover of an axle box body; the sealing device comprises a sliding sealing piece and a rotating sealing piece, the sliding sealing piece comprises a sliding ring which is sleeved outside the sliding mechanism and is in sealing connection with the axle box rear cover, a through groove is axially formed in the inner wall of the sliding ring, a convex part in sliding fit with the through groove is axially formed in the outer wall of the sliding mechanism, and when the sliding mechanism moves, the convex part moves along the through groove, so that the sliding ring and the sliding mechanism can rotate together and can relatively slide along the axial direction; the rotary sealing piece comprises a sealing baffle fixed on the outer side of the axle box rear cover, an annular groove is formed in the circumferential direction of the outer wall of the sliding ring, 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 axially move, and therefore the sliding ring can only circumferentially rotate relative to the axle box rear cover and can only axially slide relative to a sliding mechanism; according to the sealing device, the two-degree-of-freedom sealing is decoupled into the two-stage single-degree-of-freedom sealing, and each layer of sealing only aims at relative translation or relative rotation, so that the sealing environment is improved, the sealing effect is improved, the optimization of a sealing element under a single influence factor is facilitated, and the sealing of a composite degree-of-freedom structure is finally realized.
Drawings
Fig. 1 is an axial cross-sectional view of a sealing device for a variable-gauge wheel pair according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a front view of a slip ring in a sealing device for a variable gauge wheel set according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
in the figure: 1: a shaft box body; 2: a rear cover of the axle box; 3: a sliding mechanism; 31: an inner sleeve; 32: a rolling bearing; 33; an outer sleeve; 34: a positioning key; 4: a slip ring; 41: a through groove; 42: an annular groove; 5: sealing the baffle; 6: a first seal ring; 7: a second seal ring; 8: an axle.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality", and "a plurality" mean two or more unless otherwise specified.
As shown in fig. 1-4, the embodiment of the present invention provides a sealing device for a track-variable wheel pair, the track-variable wheel pair includes a slipping mechanism 3 and an axle box body 1, the slipping mechanism 3 can move back and forth relative to the axle box body 1 in the axial direction to adapt to the track-variable requirement, in order to ensure the basic sealing requirement of the axle box body 1, one end of the axle box body 1 is provided with an axle box front cover, the other end is provided with an axle box rear cover 2, a sliding mechanism 3 is positioned in the axle box body 1 and penetrates out of the axle box rear cover 2 to be connected with wheels, in the normal operation process of the track-variable wheel pair, the sliding mechanism 3 rotates along with the wheel, the axle box body 1 is relatively fixed, so that the slide mechanism 3 can rotate relative to said axle housing 1, that is, the slide mechanism 3 has a rotational degree of freedom and a translational degree of freedom to move along the axle housing 1, the sealing device is arranged between a sliding mechanism 3 of the track-variable wheel pair and an axle box rear cover 2 of the axle box body 1; specifically, the sealing device includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring 4 for sleeving the sliding mechanism 3 and being in sealing connection with the axle box rear cover 2, as shown in fig. 3, a through groove 41 is axially arranged on an inner wall of the sliding ring 4, a convex portion in sliding fit with the through groove 41 is axially arranged on an outer wall of the sliding mechanism 3, and when the sliding mechanism 3 moves, the convex portion moves along the through groove 41, so that the sliding ring 4 and the sliding mechanism 3 can rotate together and can relatively slide in the axial direction; the rotary sealing element comprises a sealing baffle 5 fixed on the outer side of the axle box rear cover 2, as shown in fig. 4, an annular groove 42 is formed in the circumferential direction of the outer wall of the sliding ring 4, 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, the sliding ring 4 only rotates circumferentially relative to the axle box rear cover 2 and only slides axially relative to the sliding mechanism 3.
In the embodiment of the present invention, as shown in fig. 1, in order to realize the sealing connection between the axle box rear cover 2 and the sliding ring 4, the present invention further includes a first sealing ring 6, the first sealing ring 6 may be a rubber sealing ring, the axle box rear cover 2 is provided with an axial through hole, the axle box rear cover 2 is provided with a first mounting groove at the inner circumference of the axial through hole, the first mounting groove is annular, the outer circumference of the first sealing ring 6 is interference-mounted in the first mounting groove, the inner circumference of the first sealing ring 6 is pressed against the outer circumference of the sliding ring 4, and when the sliding ring 4 rotates, the outer circumference of the sliding ring 4 is rotatably and sealingly connected with the first sealing ring 6.
In the embodiment of the present invention, in order to facilitate the formation of the convex portion, the outer wall of the sliding mechanism 3 is axially provided with a positioning groove, a positioning key 34 protruding out of the positioning groove is placed in the positioning groove, the length of the positioning key 34 matches with 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, the upper surface of the positioning key 34 is higher than the positioning groove to form the convex portion, the sliding ring 4 and the sliding mechanism 3 can rotate together through the convex portion, and the convex portion does not limit the axial movement of the sliding mechanism 3.
In the embodiment of the present invention, the inner wall of the sliding ring 4 may be circumferentially provided with one through groove 41, but in order to ensure the balanced stress of the sliding ring 4, the inner wall of the sliding ring 4 is preferably circumferentially provided with a plurality of through grooves 41, the plurality of through grooves 41 may be uniformly distributed in the inner wall of the sliding ring 4, and the outer wall of the sliding mechanism 3 is circumferentially provided with the protrusions corresponding to the through grooves 41 one to one.
In the embodiment of the present invention, for the sake of structural simplification, the inner wall of the sliding ring 4 is circumferentially provided with two through grooves 41, and the two through grooves 41 are respectively disposed on two radial sides of the inner wall of the sliding ring 4.
In the embodiment of the invention, in order to match the annular groove 42 outside the sliding ring 4 and completely seal the circumferential direction of the annular groove 42, the sealing baffle 5 comprises a first baffle and a second baffle which are butted to form an annular shape, the sealing baffle 5 is divided into the first baffle and the second baffle so as to be convenient to mount from the upper direction and the lower direction, the butted inner peripheries of the first baffle and the second baffle are positioned in the annular groove 42 of the sliding ring 4, and when the sliding ring 4 rotates, the inner peripheries of the first baffle and the second baffle are rotationally sealed with the annular groove 42.
In the embodiment of the present invention, in particular, the first baffle and the second baffle have a radial cross section that is L-shaped, the short side of the L-shape is fastened to the outer periphery of the axle box rear cover 2 by a fastener such as a bolt, and the long side of the L-shape is disposed adjacent to the outer side of the axle box rear cover 2 and extends into the annular groove 42.
In the embodiment of the present invention, a narrow small gap is formed between the sliding ring 4 and the sliding mechanism 3, and the sliding ring has a labyrinth function, as shown in fig. 2, a second sealing ring 7, such as a rubber O-ring, is disposed between the sliding ring 4 and the sliding mechanism 3, the second sealing ring 7 is fixedly sleeved in a 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 is in sealing contact with the second sealing ring 7, so as to further improve the sealing effect.
The embodiment of the invention also provides a track-variable wheel pair, which comprises a sliding mechanism 3, an axle box body 1 and the sealing device for the track-variable wheel pair, wherein the sealing device is arranged between the sliding mechanism 3 and an axle box rear cover 2 of the axle box body 1 and is used for axial sliding sealing and rotary sealing of the sliding mechanism 3.
In the embodiment of the present invention, as shown in fig. 1, the present invention further comprises wheels and an axle 8, wherein the wheels are slidably disposed at both ends of the axle 8, specifically, the inner circumference of the wheels is provided with an internal spline, the two ends of the axle 8 are respectively provided with an external spline, the wheels and the two ends of the axle 8 are in fit connection with the external splines through the internal splines, which is convenient for transmitting torque and moving the wheels, the sliding mechanisms 3 are respectively connected with the wheels, and are positioned in the axle box body 1 at the two ends of the axle 8, the wheels are unlocked and locked through the sliding mechanism 3, the sliding mechanism 3 comprises an inner sleeve 31, the inner sleeve 31 is sleeved on the axle 8 and is in clearance fit with the axle 8, the sealing device is arranged between the inner sleeve 31 and the axle box rear cover 2 of the axle box body 1, so that the convex part is arranged outside the inner sleeve 31, and the positioning groove is arranged on the inner sleeve 31; the inner sleeve 31 extends out of the axle box body 1 towards one end of the wheel and is tightly connected with the wheel through a fastener, and a track gauge changing 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 interfering with the axle 8 when the track gauge is changed; the sliding mechanism 3 further comprises a rolling bearing 32 and an outer sleeve 33, the inner sleeve 31, the rolling bearing 32 and the outer sleeve 33 are sequentially and tightly sleeved from inside to outside, when the wheel rotates, the inner rings of the inner sleeve 31 and the rolling bearing 32 rotate along with the wheel, the outer sleeve 33 and the outer ring of the rolling bearing 32 are kept relatively fixed, the outer sleeve 33 is in clearance fit with the inner surface of the shaft box body 1, and the outer sleeve 33, the inner sleeve 31 and the rolling bearing 32 are convenient to integrally move along the shaft box body 1. By arranging the sealing device between the inner sleeve 31 and the axle box rear cover 2 of the axle box body 1, good sealing can still be realized when the inner sleeve 31 moves or rotates, and each layer of sealing only aims at relative translation or relative rotation, so that the sealing environment is improved, and the sealing effect is improved.
According to the embodiment, the degree of freedom is decomposed, and each single degree of freedom is sealed, so that the sealing difficulty is reduced, and the high-speed performance of the variable-track-pitch wheel pair is ensured under the condition of ensuring the sealing performance of multi-degree-of-freedom motion.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The sealing device for the variable-gauge wheel pair is characterized in that the sealing device is arranged between a sliding mechanism of the variable-gauge wheel pair and a rear axle box cover of an axle box body, the sliding mechanism comprises an inner sleeve, the inner sleeve is sleeved on an axle and in clearance fit with the axle, the sealing device is arranged between the inner sleeve and the rear axle box cover of the axle box body, the sliding mechanism can axially move relative to the axle box body and can rotate relative to the axle box body, the sealing device comprises a sliding sealing piece and a rotating sealing piece, the sliding sealing piece comprises a sliding ring which is sleeved outside the sliding mechanism and is in sealing connection with the rear axle box cover, a through groove is axially arranged on the inner wall of the sliding ring, a convex part in sliding fit with the through groove is axially arranged on the outer wall of the sliding mechanism, and the convex part is arranged outside the inner sleeve, one end of the inner sleeve, facing the wheel, extends out of the axle box body and is fixedly connected with the wheel through a fastener; the rotary sealing piece comprises a sealing baffle fixed on the outer side of the axle box rear cover, an annular groove is formed in the circumferential direction of the outer wall of the sliding ring, and the lower end of the sealing baffle extends into the annular groove;
the sliding mechanism further comprises a rolling bearing and an outer sleeve, the inner sleeve, the rolling bearing and the outer sleeve are sequentially and tightly sleeved from inside to outside, when the wheel rotates, the inner sleeve and an inner ring of the rolling bearing rotate together with the wheel, and the outer sleeve and an outer ring of the rolling bearing are relatively fixed;
the sealing baffle comprises a first baffle and a second baffle which are butted to form a ring, and the butted inner peripheries of the first baffle and the second baffle are positioned in the annular groove of the sliding ring.
2. The sealing device for a variable-gauge wheel pair according to claim 1, further comprising a first sealing ring, wherein the axle box rear cover is provided with an axial through hole, the axle box rear cover is provided with a first mounting groove at the inner periphery of the axial through hole, the outer periphery of the first sealing ring is interference-mounted in the first mounting groove, and the inner periphery of the first sealing ring is pressed against the outer periphery of the sliding ring.
3. The sealing device for a pair of variable-gauge wheels according to claim 1, characterized in that the outer wall of the sliding mechanism is axially provided with a positioning groove in which a positioning key protruding out of the positioning groove is placed, forming the protrusion.
4. The sealing device for the pair of variable-gauge wheels according to claim 1, wherein 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 protrusions corresponding to the through grooves in a one-to-one correspondence.
5. The seal arrangement for a pair of variable gauge wheels according to claim 4, wherein the inner wall of the slip ring is circumferentially provided with two of said through slots, said through slots being provided on both radial sides of the inner wall of the slip ring.
6. The sealing device for a variable-gauge wheel pair according to claim 1, wherein the first baffle and the second baffle are each L-shaped in cross section, the short side of the L-shape is fastened to the outer periphery of the axle box rear cover by a fastener, and the long side of the L-shape is disposed adjacent to the outer side of the axle box rear cover.
7. The sealing device for the variable-gauge wheel pair according to claim 1, wherein 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 the outer periphery of the sliding mechanism.
8. A variable-gauge wheel pair, comprising a skid mechanism, an axle box body, and a sealing device for a variable-gauge wheel pair according to any one of claims 1 to 7, the sealing device being provided between the skid mechanism and an axle box rear cover of the axle box body for axial sliding sealing and rotational sealing of the skid mechanism.
9. The track-variable wheel pair according to claim 8, further comprising a wheel and an axle, wherein the wheel is slidably disposed at two ends of the axle, the sliding mechanisms are respectively connected to the wheel and located in the axle boxes at two ends of the axle, the wheel is unlocked and locked by the sliding mechanisms, the sliding mechanisms include inner sleeves, the inner sleeves are sleeved on the axle and in clearance fit with the axle, and the sealing device is disposed between the inner sleeves and the axle box rear covers of the axle boxes.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012719.XA CN109733434B (en) | 2019-01-07 | 2019-01-07 | Sealing device for track-variable wheel set and track-variable wheel set |
| PL19908343.7T PL3909829T3 (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 |
| JP2021546033A JP7066259B2 (en) | 2019-01-07 | 2019-09-26 | Sealing device for variable gauge wheel set and variable gauge wheel set |
| PCT/CN2019/108096 WO2020143251A1 (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 |
| EP19908343.7A EP3909829B1 (en) | 2019-01-07 | 2019-09-26 | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012719.XA CN109733434B (en) | 2019-01-07 | 2019-01-07 | Sealing device for track-variable wheel set and track-variable wheel set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109733434A CN109733434A (en) | 2019-05-10 |
| CN109733434B true CN109733434B (en) | 2020-05-08 |
Family
ID=66363687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910012719.XA Active CN109733434B (en) | 2019-01-07 | 2019-01-07 | Sealing device for track-variable wheel set and track-variable wheel set |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3909829B1 (en) |
| JP (1) | JP7066259B2 (en) |
| CN (1) | CN109733434B (en) |
| ES (1) | ES2958919T3 (en) |
| PL (1) | PL3909829T3 (en) |
| RU (1) | RU2759204C1 (en) |
| WO (1) | WO2020143251A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| JP4060232B2 (en) * | 2003-05-12 | 2008-03-12 | Ｎｔｎ株式会社 | Railway vehicle bearing device |
| 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 |
| EP2833011A1 (en) * | 2013-07-31 | 2015-02-04 | Aktiebolaget SKF | Railway axlebox assembly and railway axlebox including the same |
| 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 |
| 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 |
| CN108407839B (en) * | 2018-04-13 | 2019-11-22 | 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 |
| 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 |
| 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 |
-
2019
- 2019-01-07 CN CN201910012719.XA patent/CN109733434B/en active Active
- 2019-09-26 RU RU2021106253A patent/RU2759204C1/en active
- 2019-09-26 ES ES19908343T patent/ES2958919T3/en active Active
- 2019-09-26 PL PL19908343.7T patent/PL3909829T3/en unknown
- 2019-09-26 JP JP2021546033A patent/JP7066259B2/en active Active
- 2019-09-26 WO PCT/CN2019/108096 patent/WO2020143251A1/en unknown
- 2019-09-26 EP EP19908343.7A patent/EP3909829B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109733434A (en) | 2019-05-10 |
| ES2958919T3 (en) | 2024-02-16 |
| EP3909829A1 (en) | 2021-11-17 |
| JP7066259B2 (en) | 2022-05-13 |
| PL3909829T3 (en) | 2024-02-26 |
| JP2022508782A (en) | 2022-01-19 |
| EP3909829B1 (en) | 2023-09-06 |
| RU2759204C1 (en) | 2021-11-10 |
| WO2020143251A1 (en) | 2020-07-16 |
| EP3909829A4 (en) | 2022-04-20 |
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