A variable gauge bogie driving device and variable gauge bogie

Abstract

The present invention provides a variable gauge bogie drive device and a variable gauge bogie, and relates to the technical field of locomotive production and manufacturing. The variable gauge bogie drive device includes: a permanent magnet direct drive traction motor; a transmission assembly, connected to the output end of the permanent magnet direct drive traction motor; a wheel, sleeved on the transmission assembly, and the permanent magnet direct drive traction motor drives the wheel to rotate through the transmission assembly; a locking assembly, sleeved on the transmission assembly; an axle, respectively penetrated by the permanent magnet direct drive traction motor and the transmission assembly; wherein the wheel is configured to be able to move relative to the transmission assembly along the axial direction of the axle, and the locking assembly can abut against the side of the wheel and be detachably connected to the transmission assembly, and is used to lock the position of the wheel relative to the transmission assembly. When the wheel changes between different gauges, the locking assembly can be used to ensure that the wheel is locked under the same gauge, the structure and process are simplified, the cost is saved, and the efficiency of track change is improved.

Description

Technical Field

[0001] The present invention generally relates to the technical field of locomotive production and manufacturing, and in particular to a variable-gauge bogie driving device and a variable-gauge bogie. Background Art

[0002] Due to the different track gauges of railways in different countries, when trains are transported across countries with different track gauges, they need to change tracks. In order to solve the problem that different track gauges of railways in different countries hinder cross-border railway transportation, trains use variable track gauge bogie technology, that is, when the train travels on railways with other track gauges, it changes the inner side gauge of its own wheelset to adapt to the track gauge of other railways.

[0003] The existing variable gauge bogies mainly have the following problems:

[0004] First, when existing rail transportation equipment such as trains are transporting goods, the gauge cannot be changed because the wheel axle drive device has a fixed gauge and does not have a gauge change function. In order to solve this problem, it is necessary to replace the locomotive with a corresponding gauge and carry out the reverse transportation of goods or replace the bogie, which is time-consuming and labor-intensive, with low efficiency and high cost of track change.

[0005] Second, although the use of a variable gauge wheel axle drive device has improved efficiency to a certain extent, it requires a ground track changing device and a monitoring mechanism for monitoring the ground track changing device. It has a complex structure and has problems such as insufficient reliability, poor availability, and high production costs.

[0006] Third, the existing variable-gauge bogie drive device adopts a gear transmission system, which has problems of mechanical loss and lubricating grease pollution. Summary of the invention

[0007] The variable gauge bogie driving device and the variable gauge bogie provided by the invention have small mechanical loss, high gauge changing efficiency, good reliability and low production cost.

[0008] According to a first aspect of the present invention, there is provided a variable gauge bogie driving device, comprising:

[0009] Permanent magnet direct drive traction motor;

[0010] A transmission assembly connected to the output end of the permanent magnet direct drive traction motor;

[0011] A wheel is mounted on the transmission assembly, and the permanent magnet direct drive traction motor drives the wheel to rotate through the transmission assembly;

[0012] A locking assembly, sleeved on the transmission assembly;

[0013] Axles are respectively passed through the permanent magnet direct drive traction motor and the transmission assembly;

[0014] Wherein, the wheel is configured to be movable relative to the transmission assembly along the axial direction of the axle, and the locking assembly can abut against the side of the wheel and be detachably connected to the transmission assembly for locking the position of the wheel relative to the transmission assembly.

[0015] In some of the embodiments, the permanent magnet direct drive traction motor is disposed between two oppositely disposed wheels, and two sides of the permanent magnet direct drive traction motor are correspondingly connected to the two wheels through the two transmission assemblies.

[0016] In some embodiments, the transmission assembly includes:

[0017] A coupling connected to an output end of the permanent magnet direct drive traction motor;

[0018] A transition adapter plate is arranged on the side of the coupling away from the permanent magnet direct drive traction motor, the inner wall of the transition adapter plate is interference fit with the axle, and the wheel is sleeved on the outside of the transition adapter plate and slidingly fits therewith.

[0019] In some embodiments, the transmission assembly includes a spline, the outer wall of the transition adapter plate is provided with a first keyway, the inner wall of the wheel is provided with a second keyway corresponding to the first keyway, and the first keyway and the second keyway are arranged opposite to each other for installing the spline.

[0020] In some embodiments, the locking assembly is configured to abut against the sides of two oppositely disposed wheels close to each other, for locking the wheels in position in a wide gauge state;

[0021] The locking assembly is configured to abut against the side surfaces of the two oppositely disposed wheels that are away from each other, so as to lock the position of the wheels in a narrow gauge state.

[0022] In some embodiments, the locking assembly includes two oppositely disposed locking members, the two locking members are oppositely disposed and arranged around the transmission assembly, and the locking members and the sides of the wheel that are close to each other abut against each other.

[0023] In some embodiments, the locking assembly further includes a fastening connection member, and the two locking members are detachably connected via the fastening connection member.

[0024] In some embodiments, the locking member comprises:

[0025] A locking portion, wherein the locking portions of the two locking members are closed together to form a circular hole for the transmission assembly to pass through;

[0026] The connecting portion is arranged at the end of the locking member, and the connecting portions of the two locking members are connected via the fastening connecting member.

[0027] In some embodiments, a limiter is further included, which is arranged on a side of the transmission assembly away from the permanent magnet direct-drive traction motor, and is used to limit the wheel or the locking assembly along the axial direction of the axle.

[0028] According to a second aspect of the present invention, an embodiment of the present invention further provides a variable gauge bogie, comprising the above-mentioned variable gauge bogie driving device.

[0029] An embodiment of the present invention has the following advantages or beneficial effects:

[0030] The variable gauge bogie drive device provided by the embodiment of the present invention is connected to the transmission assembly through the output end of the permanent magnet direct drive traction motor. The permanent magnet direct drive traction motor drives the wheel to rotate through the transmission assembly, plays the role of outputting torque, and realizes the permanent magnet direct drive transmission function. Compared with the prior art, it can transmit torque without adding an additional gear transmission system, avoiding the mechanical consumption, noise and lubricating grease pollution generated by the gear transmission system. The torque transmission efficiency is high and it can be applied to the wheel axle drive device of high power and high torque locomotives. The wheel is configured to be able to move along the axial direction of the axle relative to the transmission assembly, which is used to adjust the wheel gauge and realize the variable gauge function to achieve the purpose of gauge switching, thereby solving the problem that the gauge of the existing wheel axle drive device cannot achieve gauge switching under different gauge conditions due to the fixed gauge.

[0031] Since the wheels on the same wheel pair will move relative to each other during the process of changing track gauge, a locking assembly is provided on the outside of the transmission assembly so that the locking assembly can abut against the side of the wheel. When the wheel changes between different track gauges, the locking assembly can be used to ensure that the wheel is locked at the same track gauge. By setting the locking assembly to be detachably connected to the transmission assembly, the track changing process can be simplified into three processes: removal of the locking assembly, track gauge switching, and installation of the locking assembly. The existing unlocking and locking process in the track gauge changing process is eliminated, and there is no need to set up a complex ground track changing device and monitoring mechanism to cooperate with the realization of the track changing process. The structure and process are simplified, saving the production and manufacturing cost of the ground track changing device, and improving the track changing efficiency and track changing reliability.

[0032] The variable gauge bogie provided by the embodiment of the present invention can reduce the manufacturing cost and maintenance cost of the complex ground track changing device required for the existing variable gauge device by setting the variable gauge bogie driving device, and improve the mechanical transmission efficiency and transportation reliability of the wheel axle drive. At the same time, when switching between different track gauges for track changing transportation, the free switching of different track gauges can be realized freely, which is simple, fast, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to better understand the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different settings as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each of the drawings. The above and other features and advantages of the present invention will become more apparent by describing in detail its exemplary embodiments with reference to the drawings.

[0034] in:

[0035] Figure 1 The figure shows a cross-sectional view of a variable gauge bogie driving device according to an embodiment of the present invention;

[0036] Figure 2 The figure shows a schematic structural diagram of an axle in a variable gauge bogie driving device according to an embodiment of the present invention;

[0037] Figure 3 The diagram shows a schematic structural diagram of a wheel in a variable gauge bogie driving device according to an embodiment of the present invention;

[0038] Figure 4 The figure shows a schematic diagram of the structure of a permanent magnet direct drive traction motor in a variable gauge bogie driving device according to an embodiment of the present invention;

[0039] Figure 5 The structure of the coupling in the variable gauge bogie driving device according to one embodiment of the present invention is shown. Figure 1 ;

[0040] Figure 6 The structure of the coupling in the variable gauge bogie driving device according to one embodiment of the present invention is shown. Figure 2 ;

[0041] Figure 7 The figure shows the structure of the transition adapter plate in the variable gauge bogie driving device according to one embodiment of the present invention. Figure 1 ;

[0042] Figure 8 The figure shows the structure of the transition adapter plate in the variable gauge bogie driving device according to one embodiment of the present invention. Figure 2 ;

[0043] Fig. 9 The diagram shows a schematic structural diagram of a spline in a variable gauge bogie driving device according to an embodiment of the present invention;

[0044] Fig.10The diagram shows a schematic diagram of a variable gauge bogie driving device in a narrow gauge state according to an embodiment of the present invention;

[0045] Fig.11 The diagram shows a schematic diagram of a variable gauge bogie driving device in a wide gauge state according to an embodiment of the present invention;

[0046] Fig.12 The figure shows a schematic structural diagram of a position-limiting member in a variable-gauge bogie driving device according to an embodiment of the present invention;

[0047] Fig.13 Shown is a schematic structural diagram of a locking member in a variable gauge bogie driving device according to an embodiment of the present invention.

[0048] The reference numerals are described as follows:

[0049] 1. Permanent magnet direct drive traction motor; 2. Transmission assembly; 3. Wheel; 4. Locking assembly; 5. Axle; 6. Limiting piece;

[0050] 21. Coupling; 22. Transition adapter plate; 221. First keyway; 23. Spline;

[0051] 31. Second keyway;

[0052] 41. Locking piece; 411. Locking portion; 412. Connecting portion. DETAILED DESCRIPTION

[0053] The following will be combined with the accompanying drawings in the exemplary embodiments of the present disclosure to clearly and completely describe the technical solutions in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0054] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0055] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0056] Further, in the description of the present disclosure, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present disclosure are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present disclosure. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", or "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", "inner", "outer", but also can be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0057] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0058] This embodiment provides a variable gauge bogie driving device, such as Figure 1-Figure 3 As shown, the variable gauge bogie drive device includes a permanent magnet direct drive traction motor 1, a transmission assembly 2, a wheel 3, a locking assembly 4 and an axle 5. The transmission assembly 2 is connected to the output end of the permanent magnet direct drive traction motor 1, and the wheel 3 is sleeved on the transmission assembly 2. The permanent magnet direct drive traction motor 1 drives the wheel 3 to rotate through the transmission assembly 2. The locking assembly 4 is sleeved on the transmission assembly 2, and the axle 5 is respectively penetrated by the permanent magnet direct drive traction motor 1 and the transmission assembly 2. Among them, the wheel 3 is configured to be able to move relative to the transmission assembly 2 along the axial direction of the axle 5, and the locking assembly 4 can abut against the side of the wheel 3 and be detachably connected to the transmission assembly 2, so as to lock the position of the wheel 3 relative to the transmission assembly 2.

[0059] The variable gauge bogie drive device provided in this embodiment is connected to the transmission assembly 2 through the output end of the permanent magnet direct drive traction motor 1. The permanent magnet direct drive traction motor 1 drives the wheel 3 to rotate through the transmission assembly 2, plays the role of outputting torque, and realizes the permanent magnet direct drive transmission function. Compared with the prior art, it can transmit torque without adding an additional gear transmission system, avoiding the mechanical consumption, noise and lubricating grease pollution generated by the gear transmission system. The torque transmission efficiency is high, and it can be applied to the wheel axle drive device of a high-power and high-torque locomotive. The wheel 3 is configured to be able to move along the axial direction of the axle 5 relative to the transmission assembly 2, which is used to adjust the gauge of the wheel 3 and realize the variable gauge function to achieve the purpose of gauge switching, thereby solving the problem that the gauge of the existing wheel axle drive device is fixed and cannot realize the gauge switching under different gauge conditions.

[0060] Since the wheels 3 on the same wheel pair will move relative to each other during the process of changing track gauge, a locking assembly 4 is provided on the outside of the transmission assembly 2, and the locking assembly 4 can abut against the side of the wheel 3. When the wheel 3 changes between different track gauges, the locking assembly 4 can be used to ensure that the wheel 3 is locked under the same track gauge. By setting the locking assembly 4 to be detachably connected to the transmission assembly 2, the track changing process can be simplified to three processes: removal of the locking assembly 4, track gauge switching, and installation of the locking assembly 4. The existing unlocking and locking process in the process of changing track gauge is eliminated, and there is no need to set up a complex ground track changing device and monitoring mechanism to cooperate with the realization of the track changing process. The structure and process are simplified, the production and manufacturing cost of the ground track changing device is saved, and the track changing efficiency and track changing reliability are improved.

[0061] Some existing wheel axle drive devices use a motor to first drive the wheel 3 on one side to rotate, and then transmit the torque to the wheel 3 on the other side through the axle. The torque transmission path is long, the vibration excitation transmission is inconsistent, and there is a problem of torsional vibration of the left and right wheels. In order to solve this problem, Figure 1 and Figure 4 As shown, the permanent magnet direct drive traction motor 1 provided in this embodiment is arranged between two oppositely arranged wheels 3, and the two sides of the permanent magnet direct drive traction motor 1 are correspondingly connected to the two wheels 3 through two transmission assemblies 2.

[0062] The permanent magnet direct drive traction motor 1 is arranged between two oppositely arranged wheels 3, which is equivalent to the permanent magnet direct drive traction motor 1 being arranged on the inner side of the wheel 3, and does not occupy the space along the outside of the axle 5, reducing the length of the axle 5 in the axial direction, and the space utilization rate is relatively high. The two sides of the permanent magnet direct drive traction motor 1 are correspondingly connected to the two wheels 3 through two transmission components 2. The permanent magnet direct drive traction motor 1 is a double-sided output structure, and the two transmission components 2 are respectively connected to the two wheels 3 to realize the function of transmitting torque on both sides at the same time. Both wheels 3 are equivalent to active output wheels, and the torque output is consistent and reliable.

[0063] It should be particularly noted that the permanent magnet direct-drive traction motor 1 adopts a frame-suspended full suspension structure.

[0064] In one embodiment, Figure 1 As shown, the transmission assembly 2 includes a coupling 21 and a transition adapter plate 22. The coupling 21 is connected to the output end of the permanent magnet direct-drive traction motor 1. The transition adapter plate 22 is arranged on the side of the coupling 21 away from the permanent magnet direct-drive traction motor 1. The inner wall of the transition adapter plate 22 and the axle 5 are interference fit, and the wheel 3 is sleeved on the outside of the transition adapter plate 22 and slidably fits therewith.

[0065] Among them, Figure 1 , Figure 5-Figure 6As shown, the coupling 21 is specifically a flexible plate coupling, which is connected to the output end of the permanent magnet direct-drive traction motor 1 through the coupling 21. The coupling 21 has the function of realizing three-way displacement capability. The transition adapter plate 22 is arranged on the side of the coupling 21 away from the permanent magnet direct-drive traction motor 1, which is equivalent to the coupling 21 being arranged between the permanent magnet direct-drive traction motor 1 and the transition adapter plate 22, thereby compensating for the displacement of the permanent magnet direct-drive traction motor 1 relative to the wheel 3 along the axial direction of the axle 5.

[0066] It can be understood that the two sides of the permanent magnet direct-drive traction motor 1 transmit torque synchronously through two flexible plate couplings 21, ensuring that both wheels 3 are active wheels 3, and the torque transmission consistency is strong.

[0067] like Figure 1 , Figure 7-Figure 8 As shown, the inner wall of the transition adapter plate 22 and the axle 5 are interference-fitted, that is, the transition adapter plate 22 is interference-fitted on the axle 5, so as to ensure the fixing effect of the transition adapter plate 22 relative to the axle 5. The transition adapter plate 22 and the coupling 21 are connected to each other on the side close to each other, which plays the role of transition transmission of torque. The wheel 3 is sleeved on the outside of the transition adapter plate 22 and slidably cooperates with it, so that the wheel 3 can slide relative to the transition adapter plate 22 along the axial direction of the axle 5 to adjust the distance between the two relatively arranged wheels 3, thereby realizing the process of track gauge conversion.

[0068] It can be understood that it is equivalent to realizing the track changing process at the position corresponding to the wheel 3. The transmission route of the track changing force is simple, the structure is simple and reliable, and the axle box assembly can be completely universal with the existing axle box assembly, which is different from the track gauge changing method only between the wheel 3 and the axle box assembly position.

[0069] In one embodiment, Figure 1 and Fig. 9 As shown, the transmission assembly 2 includes a spline 23, which is specifically a roller spline 23, and the outer wall of the transition adapter plate 22 is provided with a first keyway 221 (as shown in FIG. Figure 8 As shown), the inner wall of the wheel 3 is provided with a second key groove 31 (as shown in Figure 3 As shown), the first keyway 221 and the second keyway 31 are arranged opposite to each other and are used to install the spline 23.

[0070] A first key groove 221 is provided on the outer wall of the transition adapter plate 22, and the first key groove 221 provides a partial accommodation space for the spline 23. A second key groove 31 is provided on the inner wall of the wheel 3 corresponding to the first key groove 221, and the first key groove 221 provides a partial accommodation space for the spline 23. The first key groove 221 and the second key groove 31 are arranged opposite to each other, and the first key groove 221 and the second key groove 31 can just fit the upper and lower parts of the spline 23. The first key groove 221 and the second key groove 31 jointly realize the installation of the spline 23. In other words, the spline 23 is arranged in the first keyway 221 of the transition adapter plate 22, and is engaged with the second keyway 31 arranged in the inner hole of the wheel 3 in a one-to-one correspondence, playing the role of transmitting torque and the radial force of the wheel and rail along the axle 5 during normal operation; in the process of changing the track gauge, the spline 23 and the first keyway 221 and the second keyway 31 play the role of guiding cooperation, ensuring the smooth sliding of the wheel 3 relative to the transition adapter plate 22 along the axial direction of the axle 5.

[0071] It is understandable that the torque and wheel-rail force along the radial direction of the axle 5 can be transmitted by the spline 23. Compared with the prior art method of realizing the axial sliding of the wheel 3 by the clearance fit between the inner hole and the outer circle, the spline 23 has the advantages of strong bearing capacity and low friction coefficient during axial track change, and the risk of the wheel 3 getting stuck during the track change is small, thus ensuring the smoothness of the track change process.

[0072] In one embodiment, Figure 10-11 As shown, the locking assembly 4 is configured to abut against the sides of two oppositely arranged wheels 3 that are away from each other, and is used to lock the wheels 3 in a narrow gauge state; the locking assembly 4 is configured to abut against the sides of two oppositely arranged wheels 3 that are close to each other, and is used to lock the wheels 3 in a wide gauge state.

[0073] like Fig.10 As shown, when the wheel 3 is in the narrow gauge state, the narrow gauge state can also be called the standard gauge state, which requires that the distance between the two oppositely arranged wheels 3 is relatively small, which is equivalent to the two wheels 3 moving toward each other along the transition adapter plate 22 of the transmission assembly 2. At this time, there is a certain space distance between the sides of the two wheels 3 that are away from each other and the end of the axle 5. The locking assembly 4 is configured to abut against the sides of the two oppositely arranged wheels 3 that are away from each other. This space distance provides a certain accommodation space for the locking assembly 4. At the same time, when the two wheels 3 move toward each other, the inner side of the wheel 3 can abut against the transition adapter plate 22. At this time, the locking assembly 4 abuts against the outer side of the wheel 3, which is equivalent to realizing the limiting of both sides of the inner and outer sides of the wheel 3 under the joint action of the transition adapter plate 22 and the locking assembly 4, realizing the fixing effect of the wheel 3, and ensuring the locking stability and reliability of the wheel 3 in the narrow gauge state.

[0074] like Fig.11 As shown, when the wheels 3 are in the wide track gauge state, the distance between the two oppositely arranged wheels 3 needs to be relatively large, which is equivalent to the two wheels 3 moving away from each other along the transition adapter plate 22 of the transmission assembly 2. At this time, there is a certain space distance between the sides of the two wheels 3 close to each other and the transition adapter plate 22 of the transmission assembly 2. The locking assembly 4 is configured to abut against the sides of the two oppositely arranged wheels 3 close to each other, and this space distance provides a certain accommodation space for the locking assembly 4. At the same time, when the two wheels 3 move away from each other, the locking assembly 4 abuts against the inner side of the wheel 3 and is fixedly connected to the transition adapter plate 22, achieving the fixing effect of the wheel 3 and ensuring the locking stability and reliability of the wheel 3 in the wide track gauge state.

[0075] In one embodiment, Figure 1 and Fig.12 As shown, the variable gauge bogie drive device also includes a limit member 6, which is arranged on the side of the transmission assembly 2 away from the permanent magnet direct drive traction motor 1, and is used to limit the wheel 3 or the locking assembly 4 along the axial direction of the axle 5.

[0076] Among them, the limit member 6 can also be called a fixed limit plate. The limit member 6 is arranged on the side of the transmission component 2 away from the permanent magnet direct drive traction motor 1, which is equivalent to the limit member 6 being arranged on the transition adapter plate 22 of the transmission component 2 close to the end of the axle 5.

[0077] When the wheel 3 is in a narrow gauge state, one side of the locking assembly 4 abuts against the outer side of the wheel 3, and the other side abuts against the stopper 6, and the stopper 6 serves to limit the locking assembly 4 to prevent the locking assembly 4 from coming out relative to the axle 5. When the wheel 3 is in a wide gauge state, since the locking assembly 4 is arranged on the inner side of the wheel 3, the wheel 3 is equivalent to the end position closest to the axle 5, and the stopper 6 serves to limit the wheel 3 to prevent the wheel 3 from coming out relative to the axle 5. At the same time, the inner side of the wheel 3 abuts against the locking assembly 4, and the outer side of the wheel 3 abuts against the stopper 6, ensuring the position stability and reliability of the wheel 3 relative to the axle 5.

[0078] It should be noted that the limiting member 6 can be fixed to the transition adapter plate 22 by bolts.

[0079] In one embodiment, Figure 1 and Fig.13 As shown, the locking assembly 4 includes two locking members 41 arranged opposite to each other. The two locking members 41 are arranged opposite to each other and are arranged around the transmission assembly 2. The locking members 41 and the sides of the wheel 3 that are close to each other abut against each other.

[0080] Among them, the locking assembly 4 can also be called a movable limit plate. The two locking members 41 are relatively arranged and arranged around the transmission assembly 2. The two locking members 41 play the role of clamping the transition adapter plate 22 of the transmission assembly 2. The locking members 41 and the sides of the wheel 3 that are close to each other abut against each other, so that the wheel 3 can be locked and fixed by the locking members 41 in both the wide gauge state and the narrow gauge state.

[0081] Specifically, when the wheel 3 is in a narrow gauge state, the locking member 41 is installed between the outer side surface of the wheel 3 and the limit member 6; if it is necessary to switch to a wide gauge state, the locking member 41 needs to be removed first, and after the gauge is changed from the narrow gauge state to the wide gauge state, the locking member 41 is installed between the inner side surface of the wheel 3 and the transition adapter plate 22, which plays the role of gauge change and locking the inner gauge of the wheel 3.

[0082] Therefore, the wheel 3 is locked by using this double-half disassembly and assembly structure, which is simple and reliable, and the inner and outer locking switching functions of the wheel 3 can be realized when changing tracks.

[0083] In one embodiment, the locking assembly 4 further includes a fastening connection piece, and the two locking members 41 are detachably connected via the fastening connection piece.

[0084] Specifically, after the two locking members 41 are respectively wrapped around the outside of the transition adapter plate 22, the fastening connector is used to connect the two split-structure locking members 41 to each other while ensuring the locking effect of the locking members 41 on the transition adapter plate 22, thereby ensuring the locking effect on the wheel 3.

[0085] In one embodiment, Fig.13 As shown, the locking member 41 includes a locking portion 411 and a connecting portion 412. The locking portions 411 of the two locking members 41 are closed to form a circular hole for the transmission assembly 2 to pass through. The connecting portion 412 is arranged at the end of the locking member 41. The connecting portions 412 of the two locking members 41 are connected by a fastening connector.

[0086] It should be noted that the locking portion 411 is specifically a semicircular ring structure. Since the two locking members 41 are arranged opposite to each other, the two locking members 41 abut against each other to form a complete circular ring structure. At this time, the locking portions 411 of the two locking members 41 are closed to form a circular hole for the transmission assembly 2 to pass through, and the locking portion 411 plays the role of holding the transition adapter plate 22. By providing a connecting portion 412 at the end of the locking member 41, the connecting portion 412 provides a connection position for the locking member 41, and under the intermediate connection of the fastening connector, the two locking members 41 form an integral structure.

[0087] It should be particularly noted that the fastening connection member is specifically a locking bolt, and a connection hole is provided in the connection portion 412 . The locking bolt is respectively passed through the connection holes of the two locking members 41 to achieve connection between the two locking members 41 .

[0088] It should be particularly noted that one end of the two locking members 41 can be hinged by a rotating shaft, and the other end can be detachably connected by a locking connector, or both ends of the two locking members 41 can be detachably connected by a locking connector. The specific form is not limited in this embodiment and can be adjusted according to actual production needs.

[0089] The working process of the variable gauge bogie driving device provided in this embodiment is as follows:

[0090] 1. The locomotive or vehicle is about to enter the track area with a variable gauge, such as a narrow gauge state, and the locomotive or vehicle stops;

[0091] 2. The operator removes the locking components 4 on both sides of the wheelset;

[0092] 3. The locomotive or vehicle enters the track change area, and the wheels 3 are driven to slide in the axial direction of the axle 5 by a simple change in the rail gauge;

[0093] 4. When the track gauge is switched to the required gauge, the locomotive or vehicle stops;

[0094] 5. Install the locking components 4 on both sides of the wheelset;

[0095] 6. When the track gauge is changed to another track gauge state, such as a wide track gauge state, the wheels 3 are locked using the locking assembly 4, and the locomotive or vehicle continues to run.

[0096] This embodiment also provides a variable gauge bogie, which includes the above-mentioned variable gauge bogie driving device.

[0097] The variable gauge bogie provided in this embodiment can reduce the manufacturing cost and maintenance cost of the complex ground track changing device required for the existing variable gauge device by setting the variable gauge bogie driving device, and improve the mechanical transmission efficiency and transportation reliability of the wheel axle drive. At the same time, when switching between different track gauges for track changing transportation, the free switching of different track gauges can be realized freely, which is simple, fast, safe and reliable.

[0098] It should be noted that the variable gauge bogie drive device shown in the drawings and described in this specification is only an example of the principle of the present invention. It should be clearly understood by those skilled in the art that the principle of the present invention is not limited to any details or any components of the device shown in the drawings or described in the specification.

[0099] It should be understood that the present invention is not limited in its application to the detailed structure and arrangement of the components proposed in this specification. The present invention can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned variations and modifications fall within the scope of the present invention. It should be understood that the present invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the present invention and will enable those skilled in the art to utilize the present invention.

[0100] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the inventions disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and example embodiments are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0101] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from its scope. The scope of protection of the present disclosure is limited only by the appended claims.

Claims

1. A variable gauge bogie driving device, characterized in that: include: Permanent magnet direct drive traction motor (1); A transmission assembly (2) connected to an output end of the permanent magnet direct drive traction motor (1); A wheel (3) is sleeved on the transmission assembly (2), and the permanent magnet direct drive traction motor (1) drives the wheel (3) to rotate through the transmission assembly (2); A locking assembly (4) sleeved on the transmission assembly (2); An axle (5) is respectively inserted into the permanent magnet direct drive traction motor (1) and the transmission assembly (2); A limiting member (6), the limiting member (6) being arranged on a side of the transmission assembly (2) away from the permanent magnet direct drive traction motor (1), the limiting member (6) being used for limiting the position of the wheel (3) or the locking assembly (4) along the axial direction of the axle (5); The wheel (3) is configured to be movable relative to the transmission assembly (2) along the axial direction of the axle (5), and the locking assembly (4) is capable of abutting against the side of the wheel (3) and being detachably connected to the transmission assembly (2) for locking the position of the wheel (3) relative to the transmission assembly (2); The locking assembly (4) is configured to abut against the side surfaces of two oppositely disposed wheels (3) close to each other, and is used to lock the position of the wheels (3) in a wide track gauge state; The locking assembly (4) is configured to abut against the side surfaces of two oppositely disposed wheels (3) that are away from each other, and is used to lock the position of the wheels (3) in a narrow gauge state; When the wheel (3) is in a narrow gauge state, one side of the locking assembly (4) abuts against the outer side surface of the wheel (3), and the other side abuts against the limiting member (6); when the wheel (3) is in a wide gauge state, the locking assembly (4) is arranged on the inner side of the wheel (3), the wheel (3) is located at the end position closest to the axle (5), the inner side surface of the wheel (3) abuts against the locking assembly (4), and the outer side surface of the wheel (3) abuts against the limiting member (6).

2. The variable gauge bogie driving device according to claim 1, characterized in that: The permanent magnet direct drive traction motor (1) is arranged between two wheels (3) arranged opposite to each other, and two sides of the permanent magnet direct drive traction motor (1) are correspondingly connected to the two wheels (3) through the two transmission assemblies (2).

3. The variable gauge bogie driving device according to claim 1, characterized in that: The transmission assembly (2) comprises: A coupling (21) connected to an output end of the permanent magnet direct drive traction motor (1); A transition adapter plate (22) is arranged on a side of the coupling (21) away from the permanent magnet direct drive traction motor (1), the inner wall of the transition adapter plate (22) and the axle (5) are interference fit, and the wheel (3) is sleeved on the outside of the transition adapter plate (22) and slidably fits therewith.

4. The variable gauge bogie driving device according to claim 3, characterized in that: The transmission assembly (2) comprises a spline (23); the outer wall of the transition adapter plate (22) is provided with a first keyway (221); the inner wall of the wheel (3) is provided with a second keyway (31) corresponding to the first keyway (221); the first keyway (221) and the second keyway (31) are arranged opposite to each other and are used for mounting the spline (23).

5. The variable gauge bogie driving device according to claim 1, characterized in that: The locking assembly (4) comprises two locking members (41) arranged opposite to each other. The two locking members (41) are arranged opposite to each other and are arranged around the transmission assembly (2). The locking members (41) and the side surfaces of the wheel (3) that are close to each other abut against each other.

6. The variable gauge bogie driving device according to claim 5, characterized in that: The locking assembly (4) further comprises a fastening connection piece, and the two locking pieces (41) are detachably connected via the fastening connection piece.

7. The variable gauge bogie driving device according to claim 6, characterized in that: The locking member (41) comprises: A locking portion (411), wherein the locking portions (411) of the two locking members (41) are closed together to form a circular hole for the transmission assembly (2) to pass through; The connecting portion (412) is arranged at the end of the locking member (41), and the connecting portions (412) of the two locking members (41) are connected via the fastening connection member.

8. A variable gauge bogie, characterized in that: It comprises the variable gauge bogie driving device as described in any one of claims 1 to 7.

Images