CN109532920B - Variable-gauge wheel set and variable-gauge bogie - Google Patents
Variable-gauge wheel set and variable-gauge bogie Download PDFInfo
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- CN109532920B CN109532920B CN201811442966.5A CN201811442966A CN109532920B CN 109532920 B CN109532920 B CN 109532920B CN 201811442966 A CN201811442966 A CN 201811442966A CN 109532920 B CN109532920 B CN 109532920B
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- 230000007704 transition Effects 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 210000000078 claw Anatomy 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 description 6
- 239000011295 pitch Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 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
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/44—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with hollow transmission shaft concentric with wheel axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Rolling Contact Bearings (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
The invention provides a track-variable wheel pair and a track-variable bogie, which comprise an axle, wheels respectively arranged at two ends of the axle, transmission mechanisms respectively arranged at the inner sides of the wheels and connected with the corresponding wheels in a matching way, and a driving device, wherein the wheels are arranged on the inner sides of the wheels; the transmission mechanism comprises an inner sleeve, a middle transition sleeve and an outer sleeve which 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, and the inner sleeve and the middle transition sleeve are connected with the external spline in a matched mode through the internal spline; 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 wheels to rotate; a locking sleeve is arranged between the wheel and the axle and provided with a locking platform, and a plurality of locking grooves which are arranged at intervals and used for locking the locking platform are arranged in the axle box body along the axial direction of the axle box body. The invention can improve the dynamic performance of the variable-gauge train.
Description
Technical Field
The invention relates to the technical field of rail vehicle variable track pitches, in particular to a variable track pitch wheel pair and a variable track pitch bogie.
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 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 traditional wheel set structure is influenced by the performance of snake-shaped motion, the critical speed is limited, the structure is complex, the cost is increased, and the service life is shortened.
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 track-variable wheel pair and a track-variable bogie, so as to improve the running efficiency of the track-variable wheel pair on different tracks, ensure the running safety of vehicles and improve the dynamic performance of a track-variable train.
(II) technical scheme
In order to solve the technical problem, an embodiment of the present invention provides a track-variable wheel pair, which includes an axle, wheels respectively disposed at two ends of the axle, a transmission mechanism respectively disposed at inner sides of the wheels and connected to the corresponding wheels in a matching manner, and a driving device;
the transmission mechanism comprises an inner sleeve, a middle transition sleeve and an outer sleeve which 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 connecting end of the middle transition sleeve in a matched mode;
the driving device comprises a driving gear and a driven gear, the driven gear is fixedly sleeved on the periphery of the outer sleeve and is meshed with the driving gear, and the driving gear drives the driven gear to drive the wheels to rotate;
be equipped with the locking sleeve between wheel and the axletree, the slip cover of locking sleeve is established on the axletree, locking sleeve's first end with the wheel passes through rolling bearing and connects, locking sleeve's second end extend in the axle box at axletree both ends, locking sleeve's second end is equipped with the locking platform, be equipped with along its axial in the axle box and be used for the locking groove that a plurality of intervals that the locking platform locked set up.
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 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.
In the embodiment of the invention, the outer surface of the axle sleeve provided with the locking sleeve is provided with a wear-resistant layer.
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, 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, 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.
The invention further provides a track-variable bogie which comprises a framework and two pairs of track-variable wheel pairs arranged on the framework.
In the embodiment of the invention, the vehicle wheel driving device further comprises a driving motor which is arranged corresponding to each wheel, and an output shaft of the driving motor is in transmission connection with the driving gear through a pair of bevel gear pairs; an output shaft of the driving motor is coaxially arranged with a first bevel gear in the bevel gear pair, a second bevel gear in the bevel gear pair is coaxially arranged with the driving gear, and the first bevel gear is meshed with the second bevel gear along the vertical direction.
In the embodiment of the invention, the driving gear and the second bevel gear are coaxially arranged at one end of a driving gear shaft of the driving device, and the other end of the driving gear shaft is provided with a brake disc.
(III) advantageous effects
Compared with the prior art, the embodiment of the invention has the following advantages:
the track-variable wheel pair comprises an axle, wheels respectively arranged at two ends of the axle, transmission mechanisms respectively arranged on the inner sides of the wheels and connected with the corresponding wheels in a matching manner, and a driving device; the transmission mechanism comprises an inner sleeve, an intermediate transition sleeve and an outer sleeve which are arranged from inside to outside, wherein the connecting end of the inner sleeve is connected with the inner side of the wheel, the outer periphery of the inner sleeve is provided with an external spline, the inner periphery of the intermediate transition sleeve is provided with an internal spline, the inner sleeve and the intermediate transition sleeve are connected with the external spline in a matching way through the internal spline and the external spline, the inner spline and the external spline are connected, torque can be transmitted, and axial displacement can be released so as to ensure that the wheel and the inner sleeve can move axially along an axle together, the connecting end of the intermediate 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 intermediate transition sleeve in a matching way; the driving device comprises a driving gear and a driven gear, the driven gear is fixedly sleeved on the periphery of the outer sleeve and is meshed with the driven gear, the driving gear drives the driven gear to drive the wheels to rotate, and each wheel is driven independently, so that the running efficiency of the variable-gauge wheel pair under different tracks is improved, the running safety of a vehicle is ensured, and the dynamic performance of the variable-gauge train is improved; be equipped with the locking sleeve between wheel and the axletree, the locking sleeve slip cap is established on the axletree, locking telescopic first end with the wheel passes through rolling bearing and connects to when wheel and inner skleeve move together, can drive the locking sleeve and move together, locking telescopic second end extend in the axle box body at axletree both ends, locking telescopic second end is equipped with the locking platform, be equipped with along its axial in the axle box body and be used for the locking groove that a plurality of intervals of locking platform locking set up, when the wheel moved locking telescopic locking platform card with the locking sleeve together and established corresponding locking groove, the wheel gauge change was accomplished. Compact structure, convenient and reliable track pitch change.
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 locking sleeve according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a transition sliding sleeve according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a track-pitch-changeable bogie 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: the motor is driven.
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 9, 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;
a locking sleeve 4 is arranged between the wheel 1 and the axle 2, as shown in fig. 8, 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 also 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 table 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 table 42 are arranged in the axle box bodies 10 along the axial direction, 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, and completing the track pitch change of the wheel 1. 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 both 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 and connected through the connection hole by a plurality of connection claws, preferably by six connection claws 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 function is realized.
Another embodiment of the present invention further provides a track-variable bogie, as shown in fig. 10, which includes a frame 15 and two pairs of track-variable wheel pairs as described above disposed on the frame 15, where the two pairs of track-variable wheel pairs are disposed in parallel on two sides of the frame 15.
In the embodiment of the invention, the vehicle further comprises a driving motor 16 which is arranged corresponding to each wheel 1, 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 track transfer process 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 shows that the invention adopts the structural form of the independent rotating wheels, does not have snake-shaped motion, and can improve the dynamic performance of the train and the curve passing performance of the train; 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 (12)
1. A track-variable wheel pair is characterized by comprising an axle, wheels respectively arranged at two ends of the axle, transmission mechanisms respectively arranged at the inner sides of the wheels and connected with the corresponding wheels in a matching manner, and a driving device;
the transmission mechanism comprises an inner sleeve, a middle transition sleeve and an outer sleeve which 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 connecting end of the middle transition sleeve in a matched mode;
the driving device comprises a driving gear and a driven gear, the driven gear is fixedly sleeved on the periphery of the outer sleeve and is meshed with the driving gear, and the driving gear drives the driven gear to drive the wheels to rotate;
be equipped with the locking sleeve between wheel and the axletree, the slip cover of locking sleeve is established on the axletree, locking sleeve's first end with the wheel passes through rolling bearing and connects, locking sleeve's second end extend in the axle box at axletree both ends, locking sleeve's second end is equipped with the locking platform, be equipped with along its axial in the axle box and be used for the locking groove that a plurality of intervals that the locking platform locked set up.
2. The pair of track-changing wheels according to claim 1, 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.
3. The track-variable wheel pair according to 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. The pair of track-changing wheels according to claim 1, characterized in that the outer surface of said axle sleeve is provided with a wear layer.
5. The pair of track-changing wheels according to claim 1, wherein the locking sleeve is provided with two annular flanges spaced apart from each other on the outer circumferential surface thereof for mounting the rotary bearing, and the two annular flanges define a mounting position of the rotary bearing therebetween.
6. The track-variable wheel pair according to claim 1, wherein 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.
7. The pair of track-changing wheels according to claim 6, wherein the width of the open slot is greater than or equal to the width 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.
8. The pair of track-changing wheels as claimed in claim 1, 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 1, 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.
10. A track-changing bogie comprising a frame and two pairs of track-changing wheel pairs according to any one of claims 1 to 9 provided on the frame.
11. The track-variable bogie according to claim 10, further comprising a driving motor corresponding to each wheel, wherein an output shaft of the driving motor is in transmission connection with the driving gear through a pair of bevel gear pairs; an output shaft of the driving motor is coaxially arranged with a first bevel gear in the bevel gear pair, a second bevel gear in the bevel gear pair is coaxially arranged with the driving gear, and the first bevel gear is meshed with the second bevel gear along the vertical direction.
12. The track-variable bogie according to claim 11, wherein the driving gear and the second bevel gear are coaxially arranged at one end of a driving gear shaft of the driving device, and a brake disc is arranged at the other end of the driving gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442966.5A CN109532920B (en) | 2018-11-29 | 2018-11-29 | Variable-gauge wheel set and variable-gauge bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442966.5A CN109532920B (en) | 2018-11-29 | 2018-11-29 | Variable-gauge wheel set and variable-gauge bogie |
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| Publication Number | Publication Date |
|---|---|
| CN109532920A CN109532920A (en) | 2019-03-29 |
| CN109532920B true CN109532920B (en) | 2020-06-02 |
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| CN201811442966.5A Active CN109532920B (en) | 2018-11-29 | 2018-11-29 | Variable-gauge wheel set and variable-gauge bogie |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2760037C2 (en) * | 2019-05-24 | 2021-11-22 | Корея Рэилроуд Ресеч Институт | System for changing the width of wheel sets for a railway vehicle |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620472A (en) * | 2019-10-14 | 2019-12-27 | 深圳市唯川科技有限公司 | Electric machine |
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