A variable gauge wheelset mechanism based on different tracks

Abstract

This invention belongs to the field of variable gauge wheelset technology, specifically referring to a variable gauge wheelset mechanism based on different tracks. It includes an axle assembly, a lifting assembly, a synchronizing assembly, an unlocking assembly, a locking assembly, and a track assembly. The axle assembly is rotatably mounted on the track assembly. The lifting assembly is located at both ends of the axle assembly, and the synchronizing assembly is mounted on the lifting assembly. When the lifting assembly abuts against the axle assembly, the synchronizing assembly also rises synchronously to the same pre-unlocking height as the axle assembly. Before adjustment, this invention supports the axle through the lifting assembly, changing the wheel from a load-bearing state to a suspended state. By setting a curved guide rail between the wide and narrow tracks, the wheel gauge can be adjusted for the unlocked and suspended wheel.

Description

Technical Field

[0001] This invention belongs to the field of variable gauge wheelset technology, specifically referring to a variable gauge wheelset mechanism based on different tracks. Background Technology

[0002] Different countries and regions implement different track width standards. For cross-border railway trains, if they cannot adapt to different track widths, goods need to be transferred and unloaded at transfer stations, which is relatively time-consuming and labor-intensive. At present, some train wheelsets with variable pitch function have appeared on the market. By adjusting the position of the two wheels, they can adapt to different track widths.

[0003] However, current orbit-changing systems are generally complex in structure and have low efficiency. Specifically, they mainly suffer from the following problems: A: Since the train's wheelbase is changed while it is under load, the load is applied to the loose and unstable wheels during the adjustment process after unlocking, which not only makes the adjustment difficult but also easily leads to danger. B: Conventional locking mechanisms are limited by space layout, resulting in a reduced number of locking pins and a lower shear force that can be withstood, affecting the safety factor during normal operation. Summary of the Invention

[0004] In response to the above situation, in order to solve the problem of adjusting the wheel track under load, the present invention supports the axle by lifting the component before adjustment, so that the wheel changes from a load-bearing state to a suspended state; by setting a curved guide rail between the wide track and the narrow track, the wheel track can be adjusted for the unlocked and suspended wheel. The unlocking arm pushes the unlocking lever to unlock by lateral compression. In order to solve the interference problem between the unlocking lever and the unlocking arm, this invention proposes a synchronization component. By placing an external lifting swing arm at the end of the lifting trolley, the unlocking arm and the lifting wheel are raised and lowered synchronously, thereby achieving the technical effect of simultaneously preparing the position for both lifting and unlocking functions.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a variable gauge wheelset mechanism based on different tracks, including a wheel axle assembly, a lifting assembly, a synchronization assembly, an unlocking assembly, a locking assembly, and a track assembly. The wheel axle assembly is rotatably mounted on the track assembly. The lifting assembly is located at both ends of the wheel axle assembly. The synchronization assembly is mounted on the lifting assembly. When the lifting assembly abuts against the wheel axle assembly, the synchronization assembly will also rise synchronously to the same pre-unlocking height as the wheel axle assembly. The unlocking components are symmetrically arranged at both ends of the wheel and axle assembly, and the locking components are evenly distributed in a ring within the wheel and axle assembly.

[0006] Furthermore, the wheel and axle assembly includes an axle, a slant sleeve, and a wheel. The slant sleeve is fixed to both ends of the axle by bolts, and the wheel is slidably mounted on the slant sleeve.

[0007] By sliding the wheels relative to the axle, the span between the two wheels can be adjusted, allowing the train to be matched with rails of different specifications and standards.

[0008] Furthermore, the lifting assembly includes a lifting trolley, a lifting track, and a lifting swing arm. The lifting trolley is rotatably mounted on the lifting track, and the lifting swing arm is symmetrically hinged to both ends of the lifting trolley. The bottom of the lifting swing arm is provided with a lifting wheel. When the lifting wheel is located on the lifting track, the axle can be lifted by the lifting wheel.

[0009] By raising the swing arm, the wheel can be suspended in the air during the wheel track adjustment process; by transferring the load, the resistance during wheel lateral movement is reduced, thereby improving the safety and stability of the wheel lateral movement adjustment process.

[0010] Furthermore, the lifting trolley is provided with a column, and the synchronization component includes a lifting swing arm and a connecting swing arm. One end of the lifting swing arm is hinged to the column, and both ends of the connecting swing arm are respectively hinged to the ends of the lifting swing arm and the lifting swing arm.

[0011] The lifting arm and the lowering arm are a pair of opposite sides of a parallelogram structure. Therefore, the lifting wheel and the unlocking arm will rise and fall synchronously. As the lifting arm approaches the axle, the unlocking arm will also move from below the unlocking lever to the same height as the unlocking lever.

[0012] Preferably, the synchronization component further includes an unlocking arm, which is located at the end of the lifting swing arm, and an abutment wheel is provided at the middle position of the unlocking arm.

[0013] By unlocking the automatic height adjustment of the outrigger, motion interference between the unlocking lever and the lifting swing arm can be avoided without adding any steps that require active control.

[0014] Furthermore, the unlocking assembly includes an unlocking rod, an unlocking reset spring, and an unlocking top rod. The unlocking rod is engaged and slidably disposed at the end of the axle. The unlocking reset spring is disposed between the axle and the unlocking rod. The unlocking top rod is engaged and slidably disposed in the axle. The unlocking top rod and the unlocking rod are perpendicular to each other. Unlocking grooves matching the unlocking top rod are evenly distributed in a ring on the unlocking rod.

[0015] By extending and sliding the unlocking lever, the locking and unlocking between the wheel and the axle can be controlled. When the wheel is in the guide rail and its bottom is suspended, the guide rail will push the unlocked wheel to move laterally, thereby completing the adjustment of the wheel track.

[0016] Furthermore, the locking assembly includes an unlocking slider, a locking pin, and a locking return spring. The unlocking slider is engaged and slidably disposed in a groove of the axle, the locking pin is engaged and slidably disposed in the wheel and the axle, and the locking return spring is disposed between the wheel and the locking pin.

[0017] Preferably, the locking pins and locking return springs are arranged in two sets along the axial direction of the axle. By combining different locking pins with the axle, the distance between the wheels can be controlled.

[0018] This solution divides the radial unlocking motion into two stages. On the one hand, it can increase the number of locking pins and improve the shear force that the wheel can withstand. On the other hand, it can lock and fix the wheel in two different positions through two sets of locking pins in an axial array.

[0019] Furthermore, the track assembly includes a wide track, a guide rail, and a narrow track. The wide track and the narrow track are respectively located at both ends of the guide rail. The wheel rolls on the wide track and the narrow track. When the wheel is located in the guide rail, the bottom of the wheel is suspended in the air.

[0020] Preferably, the track assembly further includes an unlocking rail, and the abutment wheel and the inner wall of the unlocking rail make rolling contact.

[0021] By changing the spacing of the unlocking rails, the axial sliding of the unlocking lever can be controlled, thereby controlling the unlocking and locking of the wheels; by changing the spacing of the guide rails, the unlocked wheels can be laterally squeezed, allowing the wheel spacing to be adjusted.

[0022] The beneficial effects achieved by the present invention using the above structure are as follows: (1) By sliding the wheels relative to the axle, the span between the two wheels can be adjusted, so that the train can be matched with rails of different specifications and standards.

[0023] (2) By raising the swing arm, the wheel can be suspended in the air during the wheel track adjustment process; by transferring the load, the resistance of the wheel during lateral movement is reduced, and the safety and stability of the wheel lateral movement adjustment process are improved.

[0024] (3) The lifting arm and the lowering arm are a pair of opposite sides of a parallelogram structure. Therefore, the lifting wheel and the unlocking arm will rise and fall synchronously. As the lifting arm approaches the axle, the unlocking arm will also move from below the unlocking rod to the same height as the unlocking rod.

[0025] (4) By unlocking the automatic height adjustment of the outrigger, the motion interference between the unlocking lever and the lifting swing arm can be avoided, and the number of action steps that need to be actively controlled will not be increased.

[0026] (5) By sliding the unlocking lever, the locking and unlocking between the wheel and the axle can be controlled. When the wheel is in the guide rail and the bottom is suspended, the guide rail will push the unlocked wheel to move laterally, thereby completing the adjustment of the wheel track.

[0027] (6) This scheme divides the radial unlocking motion into two stages. On the one hand, it can increase the number of locking pins and improve the shear force that the wheel can withstand; on the other hand, it can lock and fix the wheel in two different positions through two sets of locking pins in an axial array.

[0028] (7) By changing the spacing of the unlocking rails, the axial sliding of the unlocking rod can be controlled, thereby controlling the unlocking and locking of the wheel; by changing the spacing of the guide rails, the unlocked wheel can be laterally squeezed, so that the spacing of the wheel can be adjusted. Attached Figure Description

[0029] Figure 1 This is a perspective view of a variable gauge wheelset mechanism based on different tracks proposed in this invention; Figure 2 This is a front view of a variable gauge wheelset mechanism based on different tracks proposed in this invention; Figure 3 This is a left view of a variable gauge wheelset mechanism based on different tracks proposed in this invention; Figure 4 for Figure 2 A cross-sectional view along section line AA; Figure 5 for Figure 2 A cross-sectional view along the cutting line BB; Figure 6 for Figure 5 A cross-sectional view along the section line CC; Figure 7 for Figure 5 A magnified view of a section at point I; Figure 8 for Figure 4 Enlarged view of a section at point II; Figure 9 for Figure 1 Enlarged view of a section at point III; Figure 10 for Figure 6 A magnified view of a section at point IV.

[0030] The components include: 1. Wheel and axle assembly; 2. Lifting assembly; 3. Synchronization assembly; 4. Unlocking assembly; 5. Locking assembly; 6. Track assembly; 11. Axle; 12. Slant sleeve; 13. Wheel; 21. Lifting trolley; 22. Lifting track; 23. Lifting swing arm; 31. Lifting swing arm; 32. Connecting swing arm; 33. Unlocking support arm; 41. Unlocking rod; 42. Unlocking return spring; 43. Unlocking top rod; 51. Unlocking slider; 52. Locking pin; 53. Locking return spring; 61. Wide track; 62. Guide rail; 63. Narrow track; 64. Unlocking rail; 211. Column; 231. Lifting wheel; 331. Abutment wheel; 411. Unlocking groove.

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] like Figures 1-10 As shown, the present invention proposes a variable gauge wheelset mechanism based on different tracks, including a wheel axle assembly 1, a lifting assembly 2, a synchronization assembly 3, an unlocking assembly 4, a locking assembly 5, and a track assembly 6. The wheel axle assembly 1 is rotatably mounted on the track assembly 6. The lifting assembly 2 is located at both ends of the wheel axle assembly 1. The synchronization assembly 3 is mounted on the lifting assembly 2. When the lifting assembly 2 abuts against the wheel axle assembly 1, the synchronization assembly 3 will also rise synchronously to the same pre-unlocking height as the wheel axle assembly 1. Unlocking components 4 are symmetrically arranged at both ends of wheel and axle assembly 1, and locking components 5 are evenly distributed in a ring in wheel and axle assembly 1.

[0035] The wheel and axle assembly 1 includes an axle 11, a slant sleeve 12, and a wheel 13. The slant sleeve 12 is fixed to both ends of the axle 11 by bolts, and the wheel 13 is slidably mounted on the slant sleeve 12.

[0036] By sliding the wheel 13 relative to the axle 11, the span between the two wheels 13 can be adjusted, thus enabling the train to match rails of different specifications and standards.

[0037] The lifting assembly 2 includes a lifting trolley 21, a lifting track 22, and a lifting swing arm 23. The lifting trolley 21 is rotatably mounted on the lifting track 22. The lifting swing arm 23 is symmetrically hinged to both ends of the lifting trolley 21. The bottom of the lifting swing arm 23 is provided with a lifting wheel 231. When the lifting wheel 231 is located on the lifting track 22, the axle 11 can be lifted by the lifting wheel 231.

[0038] By raising the swing arm 23, the wheel 13 can be suspended in the air during the wheel track adjustment process; by transferring the load, the resistance of the wheel 13 during lateral movement is reduced, thereby improving the safety and stability of the wheel 13 during lateral movement adjustment.

[0039] The lifting trolley 21 is equipped with a column 211. The synchronization component 3 includes a lifting swing arm 31 and a connecting swing arm 32. One end of the lifting swing arm 31 is hinged to the column 211, and the two ends of the connecting swing arm 32 are respectively hinged to the ends of the lifting swing arm 31 and the lifting swing arm 23.

[0040] The lifting arm 23 and the lifting arm 31 are a pair of opposite sides of a parallelogram structure. Therefore, the lifting wheel 231 and the unlocking arm 33 will rise and fall synchronously. As the lifting arm 23 approaches the axle 11, the unlocking arm 33 will also move from below the unlocking lever 41 to the same height as the unlocking lever 41.

[0041] The synchronization component 3 also includes an unlocking arm 33, which is located at the end of the lifting arm 31, and an abutment wheel 331 is provided at the middle position of the unlocking arm 33.

[0042] By unlocking the automatic height adjustment of the outrigger 33, the movement interference between the unlocking lever 41 and the lifting swing arm 23 can be avoided without adding any steps that require active control.

[0043] The unlocking assembly 4 includes an unlocking rod 41, an unlocking reset spring 42, and an unlocking push rod 43. The unlocking rod 41 is engaged and slidably disposed at the end of the axle 11. The unlocking reset spring 42 is disposed between the axle 11 and the unlocking rod 41. The unlocking push rod 43 is engaged and slidably disposed in the axle 11. The unlocking push rod 43 and the unlocking rod 41 are perpendicular to each other. Unlocking grooves 411 matching the unlocking push rod 43 are evenly distributed in a ring on the unlocking rod 41.

[0044] By extending and sliding the unlocking lever 41, the locking and unlocking between the wheel 13 and the axle 11 can be controlled. When the wheel 13 is in the guide rail 62 and its bottom is suspended, the guide rail 62 will push the unlocked wheel 13 to move laterally, thereby completing the adjustment of the wheel track.

[0045] The locking assembly 5 includes an unlocking slider 51, a locking pin 52, and a locking return spring 53. The unlocking slider 51 is engaged and slidably disposed in the groove of the axle 11, the locking pin 52 is engaged and slidably disposed in the wheel 13 and the axle 11, and the locking return spring 53 is disposed between the wheel 13 and the locking pin 52.

[0046] Two sets of locking pins 52 and locking return springs 53 are arranged along the axial direction of the axle 11. By combining different locking pins 52 with the axle 11, the distance between the wheels 13 can be controlled.

[0047] This scheme divides the radial unlocking motion into two stages. On the one hand, it can increase the number of locking pins 52 and improve the shear force that the wheel 13 can withstand. On the other hand, it can lock and fix the wheel 13 in two different positions through two sets of locking pins 52 arranged axially.

[0048] The track assembly 6 includes a wide track 61, a guide rail 62, and a narrow track 63. The wide track 61 and the narrow track 63 are respectively located at both ends of the guide rail 62. The wheel 13 is rolled on the wide track 61 and the narrow track 63. When the wheel 13 is located in the guide rail 62, the bottom of the wheel 13 is suspended in the air.

[0049] The track assembly 6 also includes an unlocking rail 64, an abutment wheel 331, and a rolling contact with the inner wall of the unlocking rail 64.

[0050] By changing the spacing of the unlocking rail 64, the axial sliding of the unlocking rod 41 can be controlled, thereby controlling the unlocking and locking of the wheel 13; by changing the spacing of the guide rail 62, the unlocked wheel 13 can be laterally squeezed, so that the spacing of the wheel 13 can be adjusted.

[0051] In actual use, the train first moves on the wide track 61. When the wheel axle assembly 1 moves to the position of the lifting assembly 2, the lifting assembly 2 will move forward synchronously with the wheel axle assembly 1. At this time, since the lifting trolley 21 is located below the axle 11, even if the unlocking lever 41 is in the extended state, the unlocking lever 41 and the unlocking support arm 33 will not interfere with each other. During its movement, the lifting trolley 21 will ascend the slope to reach the lifting track 22. During this process: As the lifting arm 23 gradually contacts and abuts against both ends of the axle 11, the lifting arm 23 rises. Simultaneously, through the linkage of the lifting arm 31 and the connecting arm 32, the unlocking arm 33 also gradually rises to the same height as the unlocking lever 41 (at this time, the unlocking arm 33 is located outside the unlocking lever 41). When the lifting trolley 21 and the lifting wheel 231 are all above the lifting track 22, the lifting arm 23 has abutted against the lower ends of the axle 11, and the unlocking arm 33 is at the same height as the unlocking lever 41.

[0052] The wheel axle assembly 1 and the lifting assembly 2 continue to move synchronously. When the wheel 13 enters the guide rail 62 and leaves the wide track 61, the weight of the axle 11 will fall on the lifting swing arm 23. Therefore, the wheel 13 does not bear the load and is in a suspended state. The wheel axle assembly 1 and the lifting assembly 2 continue to move synchronously. As the unlocking rail 64 narrows, the unlocking arm 33 swings and abuts against the unlocking rod 41 and overcomes the elastic force of the unlocking reset spring 42, pushing the unlocking rod 41 toward the inside of the axle 11. When the unlocking rod 41 moves laterally, the unlocking top rod 43, which was originally located in the unlocking groove 411, will be pushed out by the unlocking rod 41, thereby pushing the unlocking slider 51 to slide toward the outside of the wheel 13. When the unlocking slider 51 slides, it overcomes the elastic force of the locking reset spring 53 and pushes the locking pin 52 outward, causing the locking pin 52 to leave the groove of the wheel 13. The locking pin 52, which was originally located in the grooves of both the axle 11 and the wheel 13, leaves the wheel 13, and the axle 11 and the wheel 13 change from the locked state to the unlocked state.

[0053] After being unlocked, the wheel axle assembly 1 continues to move synchronously with the lifting assembly 2. As the guide rail 62 narrows, the suspended wheels 13 will move closer to each other under the lateral thrust of the guide rail 62. After the wheel track adjustment is completed, as the unlocking rail 64 widens, the unlocking rod 41 slides back to its original position under the elastic force of the unlocking reset spring 42. At the same time, another set of locking pins 52 slides into the groove of the axle 11 under the elastic force of the locking return spring 53, and completes the locking between the axle 11 and the wheel 13 again.

[0054] Two sets of locking pins 52 and locking return springs 53 are arranged axially on a wheel 13. Each set of locking pins 52 and locking return springs 53 is evenly distributed in a ring. The two sets of locking pins 52 can lock the wheel 13 and the axle 11 in two positions respectively.

[0055] When wheel 13 contacts narrow track 63, the load of the carriage is transferred to narrow track 63 through axle 11 and wheel 13. At this time, lifting arm 23 basically does not bear the load. Then wheel axle assembly 1 and lifting assembly 2 continue to move synchronously. When lifting trolley 21 and lifting arm 23 leave lifting track 22 from the downhill, lifting arm 23 leaves axle 11 and unlocking arm 33 also separates longitudinally from unlocking rod 41 to avoid interference between axle 11 and unlocking arm 33 when axle 11 leaves.

[0056] When there is no need to change tracks, a removable protective cover can be installed on the outside of the unlocking lever 41 to prevent accidental activation of the unlocking lever 41 during train operation.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A variable-gauge wheelset mechanism based on different tracks, comprising a wheel axle assembly (1) and a track assembly (6), wherein the wheel axle assembly (1) is rotatably mounted on the track assembly (6), characterized in that: It also includes a lifting component (2), a synchronization component (3), an unlocking component (4) and a locking component (5). The lifting component (2) is located at both ends of the wheel axle assembly (1). The synchronization component (3) is located on the lifting component (2). When the lifting component (2) abuts against the wheel axle assembly (1), the synchronization component (3) will also rise synchronously to the same pre-unlocking height as the wheel axle assembly (1). The unlocking components (4) are symmetrically arranged at both ends of the wheel axle assembly (1), and the locking components (5) are evenly distributed in a ring in the wheel axle assembly (1).

2. The variable gauge wheelset mechanism based on different tracks according to claim 1, characterized in that: The wheel and axle assembly (1) includes an axle (11), a slant sleeve (12) and a wheel (13). The slant sleeve (12) is fixed to both ends of the axle (11) by bolts, and the wheel (13) is slidably mounted on the slant sleeve (12).

3. A variable gauge wheelset mechanism based on different tracks according to claim 2, characterized in that: The lifting assembly (2) includes a lifting trolley (21), a lifting track (22), and a lifting swing arm (23). The lifting trolley (21) is rotatably mounted on the lifting track (22). The lifting swing arm (23) is symmetrically hinged to both ends of the lifting trolley (21). The bottom of the lifting swing arm (23) is provided with a lifting wheel (231). When the lifting wheel (231) is located on the lifting track (22), the axle (11) can be lifted by the lifting wheel (231).

4. A variable gauge wheelset mechanism based on different tracks according to claim 3, characterized in that: The lifting trolley (21) is provided with a column (211), and the synchronization component (3) includes a lifting swing arm (31) and a connecting swing arm (32). One end of the lifting swing arm (31) is hinged to the column (211), and the two ends of the connecting swing arm (32) are respectively hinged to the ends of the lifting swing arm (31) and the lifting swing arm (23).

5. A variable gauge wheelset mechanism based on different tracks according to claim 4, characterized in that: The synchronization component (3) also includes an unlocking arm (33), which is located at the end of the lifting arm (31), and an abutment wheel (331) is provided at the middle position of the unlocking arm (33).

6. A variable gauge wheelset mechanism based on different tracks according to claim 5, characterized in that: The unlocking assembly (4) includes an unlocking rod (41), an unlocking reset spring (42), and an unlocking push rod (43). The unlocking rod (41) is engaged and slidably disposed at the end of the axle (11). The unlocking reset spring (42) is disposed between the axle (11) and the unlocking rod (41). The unlocking push rod (43) is engaged and slidably disposed in the axle (11). The unlocking push rod (43) and the unlocking rod (41) are perpendicular to each other. The unlocking rod (41) is provided with unlocking grooves (411) that match the unlocking push rod (43) evenly distributed in a ring.

7. A variable gauge wheelset mechanism based on different tracks according to claim 6, characterized in that: The locking assembly (5) includes an unlocking slider (51), a locking pin (52), and a locking return spring (53). The unlocking slider (51) is engaged and slidably disposed in the groove of the axle (11). The locking pin (52) is engaged and slidably disposed in the wheel (13) and the axle (11). The locking return spring (53) is disposed between the wheel (13) and the locking pin (52).

8. A variable gauge wheelset mechanism based on different tracks according to claim 7, characterized in that: The locking pins (52) and locking return springs (53) are arranged in two sets along the axial direction of the axle (11). By combining different locking pins (52) with the axle (11), the distance between the wheels (13) can be controlled.

9. A variable gauge wheelset mechanism based on different tracks according to claim 8, characterized in that: The track assembly (6) includes a wide track (61), a guide rail (62) and a narrow track (63). The wide track (61) and the narrow track (63) are respectively located at both ends of the guide rail (62). The wheel (13) is rolled on the wide track (61) and the narrow track (63). When the wheel (13) is located in the guide rail (62), the bottom of the wheel (13) is suspended.

10. A variable gauge wheelset mechanism based on different tracks according to claim 9, characterized in that: The track assembly (6) also includes an unlocking rail (64), and the inner wall of the abutment wheel (331) and the unlocking rail (64) are in rolling contact.

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