CN109532922B - Locking mechanism for track-variable wheel set and track-variable wheel set - Google Patents
Locking mechanism for track-variable wheel set and track-variable wheel set Download PDFInfo
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- CN109532922B CN109532922B CN201811443014.5A CN201811443014A CN109532922B CN 109532922 B CN109532922 B CN 109532922B CN 201811443014 A CN201811443014 A CN 201811443014A CN 109532922 B CN109532922 B CN 109532922B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 230000009471 action Effects 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 48
- 210000000078 claw Anatomy 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000011295 pitch Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B37/00—Wheel-axle combinations, e.g. wheel sets
- B60B37/10—Wheel-axle combinations, e.g. wheel sets the wheels being individually rotatable around the axles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
The invention relates to the field of rail vehicle gauge changing, and provides a locking mechanism for a variable-gauge wheel pair, which comprises a locking sleeve, wherein the locking sleeve is used for being sleeved on an axle in a sliding manner, the first end of the locking sleeve is used for being connected with wheels through a rotating bearing, the second end of the locking sleeve is used for extending into axle box bodies at two ends of the axle, the second end of the locking sleeve is provided with a locking platform, a plurality of locking grooves which are arranged at intervals are formed in the axle box bodies along the axial direction of the axle box bodies, and the locking platform is used for being inserted into the locking grooves to realize locking and can be switched among the locking grooves under the action of external force to change the gauge. The invention also provides a track-distance-variable wheel pair. The invention has compact structure, can realize reliable locking and unlocking, and conveniently and reliably realize the track gauge change of the wheel.
Description
Technical Field
The invention relates to the technical field of rail vehicle variable track pitches, in particular to a locking mechanism for a variable track pitch wheel pair and the variable track pitch 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 the track gauge of railways of different countries is different so as to cause obstruction to transnational railway transportation, the variable-gauge train is proposed, namely when the train runs to railways of other countries, the track gauge of the railways of other countries is adapted by changing the distance between wheels on the wheel pair of the train.
However, the structural form of the traditional wheel set is influenced by the performance of snake-shaped movement, the critical speed is limited, and particularly, the locking mechanism has a complex structure, the cost is increased, the service life is shortened, and the limiting factor for hindering the development of the variable-gauge train is formed.
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 locking mechanism for a track-variable wheel pair and the track-variable wheel pair, so as to realize reliable locking and unlocking and conveniently and reliably realize the track-variable of wheels.
(II) technical scheme
In order to solve the technical problem, an embodiment of the invention provides a locking mechanism for a track-distance-variable wheel pair, which comprises a locking sleeve, wherein the locking sleeve is used for being sleeved on an axle in a sliding manner, the first end of the locking sleeve is used for being connected with a wheel through a rotating bearing, the second end of the locking sleeve is used for extending into axle box bodies at two ends of the axle, the second end of the locking sleeve is provided with a locking platform, a plurality of locking grooves which are arranged at intervals are formed in the axle box bodies along the axial direction of the axle box bodies, and the locking platform is used for being inserted into the locking grooves to realize locking and can be switched among the locking grooves under the action of external force to change the track distance.
In the embodiment of the invention, the axle box body is provided with an axial through hole, two opposite sides of the axial through hole are respectively and horizontally provided with an open slot communicated with the axial through hole, and the bottom wall of the open slot is provided with a plurality of locking slots at intervals; the locking platforms are arranged on two opposite sides outside the locking sleeve.
In the embodiment of the invention, the width of the open slot is more than or equal to that of the locking platform; the open slot is arranged on the radial two sides of the axial through hole, and the locking platform is arranged on the radial two sides of the locking sleeve.
In an embodiment of the invention, the locking sleeve is provided with two annular flanges at intervals on the outer peripheral surface for arranging the rotary bearing, and the installation position of the rotary bearing is defined between the two annular flanges.
In the embodiment of the invention, a transition sliding sleeve is arranged between the locking sleeve and the axle, and the transition sliding sleeve is in interference fit with the axle.
The embodiment of the invention also provides a track-variable wheel pair, which comprises an axle, wheels respectively arranged at two ends of the axle and the locking mechanism for the track-variable wheel pair, wherein the locking mechanism comprises a locking mechanism body and a locking mechanism body; the locking sleeve is slidably sleeved on the axle, a first end of the locking sleeve is connected with the wheel through a rotating bearing, a second end of the locking sleeve extends into the axle box body at two ends of the axle, the locking platform is inserted into the locking grooves to realize locking, and the locking platform can be switched among the locking grooves under the action of external force to realize that the wheel changes the track gauge.
In the embodiment of the invention, the automobile wheel further comprises a transmission mechanism, the transmission mechanism comprises an inner sleeve, a middle transition sleeve and an outer sleeve, the inner sleeve, the middle transition sleeve and the outer sleeve are arranged from inside to outside, the connecting end of the inner sleeve is connected with the inner side of the wheel, an external spline is arranged on the outer periphery of the inner sleeve, an internal spline is arranged on the inner periphery of the middle transition sleeve, the inner sleeve and the middle transition sleeve are connected with the external spline in a matched mode through the internal spline, the connecting end of the middle transition sleeve is opposite to the connecting end of the inner sleeve, and the connecting end of the outer sleeve is connected with the.
In the embodiment of the invention, the automobile wheel driving device further comprises a driving device, the driving device comprises a driving gear and a driven gear, the driven gear is fixedly sleeved on the periphery of the outer sleeve, the driving gear is meshed with the driven gear, and the driving gear drives the driven gear to drive the wheel to rotate.
In an embodiment of the invention, a positioning bearing is arranged between the inner wall of the opposite end of the intermediate transition sleeve connected with the inner sleeve and the axle.
In an embodiment of the invention, a connecting flange is arranged at the connecting end of the inner sleeve, a plurality of connecting holes are arranged on the connecting flange at intervals, and the connecting end of the inner sleeve is connected with the inner side of the wheel through a plurality of connecting claws.
In an embodiment of the invention, the connecting end of the middle transition sleeve and the connecting end of the outer sleeve are respectively provided with a plurality of lugs arranged at intervals, and the lugs of the middle transition sleeve and the lugs of the outer sleeve are arranged in a staggered manner and are connected through a plurality of connecting claws.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
the locking mechanism for the track-distance-variable wheel pair comprises a locking sleeve, wherein the locking sleeve is arranged between a wheel and an axle, the locking sleeve is sleeved on the axle in a sliding manner, a first end of the locking sleeve is connected with the wheel through a rotating bearing, a second end of the locking sleeve extends into axle box bodies at two ends of the axle, a locking platform is arranged at the second end of the locking sleeve, a plurality of locking grooves which are arranged at intervals are formed in the axle box bodies along the axial direction of the axle box bodies, and the locking platform is used for being inserted into the locking grooves to realize locking and can be switched among the locking grooves under the action of external force to change track distance; compact structure, convenient and reliable track pitch change.
According to the track-variable wheel pair provided by the embodiment of the invention, the inner sleeve and the middle transition sleeve are in matched connection with the outer spline through the inner spline, and are connected through the inner spline and the outer spline, so that torque can be transmitted, and axial displacement can be released, so that the wheels and the inner sleeve can move axially along an axle together, the connecting end of the middle transition sleeve is arranged opposite to the connecting end of the inner sleeve, the connecting end of the outer sleeve is connected with the connecting end of the middle transition sleeve in a matched manner, the axial positions of the middle transition sleeve and the outer sleeve are kept fixed relative to the axle, each wheel is driven independently, the operation efficiency of the track-variable wheel pair under different tracks can be improved, the operation safety of the vehicle can be ensured, and the dynamic performance.
Drawings
Fig. 1 is a schematic perspective view of a track-variable wheel pair according to an embodiment of the present invention;
FIG. 2 is an axial cross-sectional view of a track-variable wheelset in a locked state according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a track-variable wheel set in an unlocked state according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a spindle housing according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an inner sleeve according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an intermediate transition sleeve in an embodiment of the present invention;
FIG. 7 is a schematic view of an embodiment of an outer sleeve according to the present invention;
FIG. 8 is a schematic view of a connection between an intermediate transition sleeve and an outer sleeve in an embodiment of the present invention;
FIG. 9 is a schematic view of a locking sleeve according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a transition sliding sleeve according to an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a variable-gauge wheel set mounted on a frame according to an embodiment of the present invention;
in the figure: 1: a wheel; 2: an axle; 3: a rotating bearing; 4: a locking sleeve; 41: an annular flange; 42: a locking table; 5: a transition sliding sleeve; 6: an inner sleeve; 61: a connecting flange; 62: an external spline; 7: a middle transition sleeve; 71: a lug; 72: an internal spline; 8: an outer sleeve; 9: a driven gear; 10: a shaft box body; 101: an axial through hole; 102: an open slot; 103: a locking groove; 11: a driving gear; 12: a bevel gear pair; 13: a driving gear shaft; 14: a brake disc; 15: a frame; 16: a drive motor; 17: a connecting claw.
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 to 10, an embodiment of the present invention provides a track-variable wheel pair, as shown in fig. 1 to 3, which includes an axle 2, wheels 1 respectively disposed at two ends of the axle 2, transmission mechanisms respectively disposed at inner sides of the wheels 1 and connected to the corresponding wheels 1 in a matching manner, that is, one transmission mechanism corresponding to each wheel 1, and a driving device;
specifically, the transmission mechanism comprises an inner sleeve 6, an intermediate transition sleeve 7 and an outer sleeve 8 which are arranged from inside to outside, the connecting end of the inner sleeve 6 is connected with the inner side of the wheel 1, the wheel 1 and the inner sleeve 6 can move together, the outer periphery of the inner sleeve 6 is provided with an external spline 62, as shown in fig. 6, the inner periphery of the intermediate transition sleeve 7 is provided with an internal spline 72, the inner sleeve 6 and the intermediate transition sleeve 7 are connected with the external spline 62 through the internal spline 72 in a matching manner, so that the torque is uniformly distributed between the intermediate transition sleeve 7 and the inner sleeve 6, the torque is conveniently transmitted, the wheel 1 and the inner sleeve 6 slide along the axle 2 together to realize track gauge change, the connecting end of the intermediate transition sleeve 7 is arranged opposite to the connecting end of the inner sleeve 6, namely, after the intermediate transition sleeve 7 is connected with the inner sleeve 6 through the splines, the connecting end of the intermediate transition sleeve 7 and the connecting end, the connecting end of the outer sleeve 8 is connected with the connecting end of the middle transition sleeve 7 in a matching manner, namely the connecting end of the outer sleeve 8 is connected with the connecting end of the middle transition sleeve 7 at the same end;
the driving device comprises a driving gear 11 and a driven gear 9, the driven gear 9 is fixedly sleeved on the periphery of the outer sleeve 8, for example, the driven gear 9 is in interference fit with the periphery of the outer sleeve 8 to realize fixed connection, the driving gear 11 is meshed with the driven gear 9, the driving gear 11 drives the driven gear 9 to drive the wheel 1 to rotate, the wheel 1 rotates independently, the axle 2 does not move, and the driving gear is used for providing power for the normal operation of the track-variable wheel pair;
the embodiment of the invention also provides a locking mechanism for a track-variable wheel pair, the locking mechanism is arranged between the wheel 1 and the axle 2, the locking mechanism comprises a locking sleeve 4, as shown in fig. 9, the locking sleeve 4 is slidably sleeved on the axle 2, a first end of the locking sleeve 4 is connected with the wheel 1 through a rotating bearing 3, an outer ring of the rotating bearing 3 is fixedly sleeved with the wheel 1, an inner ring of the rotating bearing 3 is fixedly sleeved with the periphery of the locking sleeve 4, so that the wheel 1 can rotate relative to the locking sleeve 4 and can drive the locking sleeve 4 to move together, a second end of the locking sleeve 4 extends into axle box bodies 10 positioned at two ends of the axle 2, a locking platform 42 is arranged at a second end of the locking sleeve 4, as shown in fig. 4, a plurality of locking grooves 103 arranged at intervals for locking the locking platform 42 are arranged in the axle box bodies 10 along the axial direction thereof, when the wheel 1 and the locking sleeve 4 move together to the locking table 42 of the locking sleeve 4 to be clamped in the corresponding locking groove 103, the track pitch change of the wheel 1 is finished; compact structure, convenient and reliable track pitch change. The invention can realize automatic track changing action, improve the running efficiency of the track-distance-changing wheel pair under different tracks and ensure the running safety of vehicles. By adopting the structural form of the independent rotating wheel 1, the dynamic performance of the variable-gauge train can be improved.
In the embodiment of the present invention, specifically, in order to axially position the intermediate transition sleeve 7, a positioning bearing is disposed between the inner wall of the end opposite to the end where the intermediate transition sleeve 7 is connected to the inner sleeve 6 and the axle 2, an outer ring of the positioning bearing is fixedly sleeved on the inner wall of the intermediate transition sleeve 7, and an inner ring of the positioning bearing is fixedly sleeved on the axle 2.
In the embodiment of the invention, as shown in fig. 2 and 3, a transition sliding sleeve 5 is arranged between the locking sleeve 4 and the axle 2, the transition sliding sleeve 5 is in interference fit with the axle 2, and the locking sleeve 4 can slide back and forth along the transition sliding sleeve 5 to reduce the friction force between the locking sleeve 4 and the axle 2, so that the service life of the axle 2 is prolonged.
In the embodiment of the invention, certainly, the transition sliding sleeve 5 is not required, and the wear-resistant layer is directly arranged on the outer surface of the axle 2 sleeved with the locking sleeve 4, so that the friction force between the locking sleeve 4 and the axle 2 can be reduced, and the service life of the axle 2 is prolonged.
In the embodiment of the present invention, in order to achieve reliable positioning of the rotary bearing 3, the locking sleeve 4 is provided with two annular flanges 41 at intervals on the outer circumferential surface of the rotary bearing 3, the two annular flanges 41 define the installation position of the rotary bearing 3 therebetween, and the inner and outer end surfaces of the rotary bearing 3 abut against the inner end surfaces of the two annular flanges 41, so as to ensure the fixed position of the rotary bearing 3.
In the embodiment of the present invention, the axle box body 10 is provided with an axial through hole 101, two opposite sides of the axial through hole 101 are respectively and horizontally provided with an open slot 102 communicated with the axial through hole 101, and the bottom wall of the open slot 102 is provided with a plurality of locking slots 103 at intervals; the locking platforms 42 are arranged on two opposite sides outside the locking sleeve 4, the locking platforms 42 of the locking sleeve 4 are clamped in one of the locking grooves 103 to be locked before track distance changing, when the track distance is required to be changed, the locking sleeve 4, the axle 2, the wheel 1 and the like are lifted upwards under the action of external force, so that the locking platforms 42 are separated from the locking groove 103, inward or outward thrust is applied to the wheel 1, the wheel 1 is moved, meanwhile, the locking sleeve 4 is moved together until the locking platforms 42 of the locking sleeve 4 move to the position of the other locking groove 103, the locking platforms are clamped into the locking groove 103 under the action of gravity, locking is carried out again, and track distance changing is completed.
In the embodiment of the present invention, the width of the opening groove 102 is greater than or equal to the width of the locking platform 42, so as to ensure that the locking platform 42 has a space for moving up and down, and prepare for changing the track pitch; advantageously, the open grooves 102 are provided on both radial sides of the axial through hole 101, and the locking lands 42 are provided on both radial sides of the locking sleeve 4.
In an embodiment of the present invention, in order to achieve reliable connection between the inner sleeve 6 and the wheel 1, as shown in fig. 5, a connection end of the inner sleeve 6 is provided with a connection flange 61, the connection flange 61 is provided with a plurality of connection holes at intervals, the connection end of the inner sleeve 6 is connected with the inner side of the wheel 1 through a plurality of connection claws, the connection claws penetrate through the connection holes to achieve connection, preferably through six connection claws distributed in the circumferential direction, and the connection claws are preferably rubber nodes, so that flexible transmission of torque can be achieved, and vibration isolation is achieved.
In the embodiment of the present invention, in order to realize the reliable connection between the intermediate transition sleeve 7 and the outer sleeve 8, as shown in fig. 7, the connection end of the intermediate transition sleeve 7 and the connection end of the outer sleeve 8 are provided with a plurality of lugs 71 arranged at intervals, the lugs 71 of the intermediate transition sleeve 7 and the lugs 71 of the outer sleeve 8 are arranged in a staggered manner, each lug 71 is provided with at least one connection hole, as shown in fig. 8, and connected by a plurality of connection claws 17 penetrating through the connection holes, preferably by six connection claws 17 distributed in the circumferential direction, and the connection claws are preferably rubber nodes, so that the flexible transmission of torque can be realized, and the vibration isolation effect can be realized.
As shown in fig. 11, two pairs of the gauge-varying wheel pairs are arranged in parallel on both sides of the frame 15.
In the embodiment of the invention, a driving motor 16 corresponding to each wheel 1 is further arranged on the framework 15, the driving motor 16 is longitudinally arranged along the framework 15, and an output shaft of the driving motor 16 is in transmission connection with the driving gear 11 through a pair of bevel gear pairs 12; the output shaft of the driving motor 16 is coaxially arranged with the first bevel gear in the bevel gear pair 12, the second bevel gear in the bevel gear pair 12 is coaxially arranged with the driving gear 11, the first bevel gear and the second bevel gear are engaged in the vertical direction, so that the transverse driving force of the driving motor 16 is converted into the longitudinal driving force to drive the wheels 1 to rotate longitudinally, each wheel 1 is independently driven by a corresponding driving motor 16, each wheel 1 is conveniently and independently controlled, and the dynamic performance of a high-variable-gauge train can be improved.
In the embodiment of the invention, the driving gear 11 and the second bevel gear are coaxially arranged at one end of a driving gear shaft 13 of the driving device, and the other end of the driving gear shaft 13 is provided with a brake disc 14 for the use of a train during deceleration or braking.
The orbital transfer process of the embodiment of the invention comprises the following steps:
1. the axle box body 10 is supported on a ground support rail, and the wheels 1 are unloaded;
2. the wheel 1 is lifted up under the action of the ground guide rail, and the locking platform 42 is disengaged from the locking groove 103, so that unlocking is realized;
3. the wheel 1 is transversely moved under the action of the ground guide rail to reach a target track gauge;
4. the wheel 1 bears again, leaves the ground support rail, and the locking platform 42 enters the locking groove 103 again under the action of gravity, so that locking is realized, and the rail distance changing is completed.
The embodiment of the invention has the advantages that the locking and unlocking are reliable and convenient, the structural form of the independent rotating wheels is adopted, the snake-shaped motion does not exist, and the dynamic performance of the train and the curve passing performance of the train can be improved; and the track distance is reliable, and the running safety of the vehicle is ensured.
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 locking mechanism for the track-distance-variable wheel pair is characterized by comprising a locking sleeve, wherein the locking sleeve is used for being sleeved on an axle in a sliding mode, the first end of the locking sleeve is used for being connected with the wheel through a rotating bearing, the second end of the locking sleeve is used for extending into axle box bodies at two ends of the axle, the second end of the locking sleeve is provided with a locking platform, a plurality of locking grooves which are arranged at intervals are formed in the axle box bodies along the axial direction of the axle box bodies, the locking platform is used for being inserted into the locking grooves to achieve locking, and can be switched among the locking grooves under the action of external force to change track distances; the shaft box body is provided with an axial through hole, two opposite sides of the axial through hole are respectively and horizontally provided with an open slot communicated with the axial through hole, and the bottom wall of the open slot is provided with a plurality of locking slots at intervals; the locking platforms are arranged on two opposite sides outside the locking sleeve; the width of the open slot is more than or equal to that of the locking platform; the open slot is arranged on the radial two sides of the axial through hole, and the locking platform is arranged on the radial two sides of the locking sleeve.
2. The locking mechanism for track-changing wheelsets as claimed in claim 1, wherein the locking sleeve is provided with two annular flanges spaced apart from each other on the outer circumferential surface of the rotary bearing, and the two annular flanges define a mounting position of the rotary bearing therebetween.
3. The locking mechanism for the track-variable wheel pair as claimed in claim 1, wherein a transition sliding sleeve is arranged between the locking sleeve and the axle, and the transition sliding sleeve is in interference fit with the axle.
4. A track-variable wheel pair, comprising an axle and wheels respectively arranged at two ends of the axle, and further comprising a locking mechanism for the track-variable wheel pair as claimed in any one of claims 1 to 3; the locking sleeve is slidably sleeved on the axle, a first end of the locking sleeve is connected with the wheel through a rotating bearing, a second end of the locking sleeve extends into the axle box body at two ends of the axle, the locking platform is inserted into the locking grooves to realize locking, and the locking platform can be switched among the locking grooves under the action of external force to realize that the wheel changes the track gauge.
5. The track-variable wheel pair according to claim 4, further comprising a transmission mechanism, wherein the transmission mechanism comprises an inner sleeve, an intermediate transition sleeve and an outer sleeve, the inner sleeve, the intermediate transition sleeve and the outer sleeve are arranged from inside to outside, the connecting end of the inner sleeve is connected with the inner side of the wheel, the outer sleeve is provided with an external spline at the outer periphery, the inner sleeve is provided with an internal spline at the inner periphery, the inner sleeve and the intermediate transition sleeve are in fit connection with the external spline through the internal spline, the connecting end of the intermediate transition sleeve is opposite to the connecting end of the inner sleeve, and the connecting end of the outer sleeve is in matched connection with the connecting end of the intermediate transition sleeve.
6. The pair of track-changing wheels according to claim 5, further comprising a driving device, wherein said driving device comprises a driving gear and a driven gear, said driven gear is fixedly sleeved on the outer circumference of said outer sleeve, said driving gear is engaged with said driven gear, and said driving gear drives said driven gear to rotate.
7. The pair of track-changing wheels according to claim 5, characterized in that a positioning bearing is provided between the inner wall of the opposite end of the intermediate transition sleeve connected with the inner sleeve and the axle.
8. The pair of track-changing wheels as claimed in claim 5, wherein the connecting end of the inner sleeve is provided with a connecting flange having a plurality of connecting holes spaced apart therefrom, and the connecting end of the inner sleeve is connected to the inner side of the wheel by a plurality of connecting claws.
9. The pair of track-changing wheels according to claim 5, wherein the connecting end of the intermediate transition sleeve and the connecting end of the outer sleeve are provided with a plurality of lugs arranged at intervals, and the lugs of the intermediate transition sleeve and the lugs of the outer sleeve are arranged in a staggered manner and connected through a plurality of connecting claws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443014.5A CN109532922B (en) | 2018-11-29 | 2018-11-29 | Locking mechanism for track-variable wheel set and track-variable wheel set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443014.5A CN109532922B (en) | 2018-11-29 | 2018-11-29 | Locking mechanism for track-variable wheel set and track-variable wheel set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109532922A CN109532922A (en) | 2019-03-29 |
| CN109532922B true CN109532922B (en) | 2020-04-28 |
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| CN201811443014.5A Active CN109532922B (en) | 2018-11-29 | 2018-11-29 | Locking mechanism for track-variable wheel set and track-variable wheel set |
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| CN110228492B (en) * | 2019-06-21 | 2020-09-22 | 中车青岛四方机车车辆股份有限公司 | Traction electromagnet for track-variable wheel set and locking mechanism for track-variable wheel set |
| CN111806500B (en) * | 2020-07-28 | 2022-02-15 | 中车青岛四方机车车辆股份有限公司 | Axle for track-gauge-variable wheel set and track-gauge-variable wheel set |
| CN113276086B (en) * | 2021-05-31 | 2022-05-20 | 深圳市金乾象科技有限公司 | Interchangeable rail piping lane patrols and examines camera device |
| CN115447620A (en) * | 2022-10-19 | 2022-12-09 | 中车株洲电力机车有限公司 | Wheelset drive system for standard gauge wheel-rail drive and meter-gauge rack drive |
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| Publication number | Publication date |
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| CN109532922A (en) | 2019-03-29 |
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