Variable gauge wheel set, bogie and vehicle

Abstract

The utility model provides a gauge-changeable wheelset, a bogie and a vehicle. The gauge-changeable wheelset comprises an axle, a wheel set and a wheel set, the wheel is movably arranged on the axle in a sleeving mode along the axis of the axle, and the wheel can rotate around the axis of the axle; the sealing assembly comprises a dustproof cover, the dustproof cover is arranged on the axle in a sleeving mode, the two ends of the dustproof cover are detachably connected with the axle and the wheels respectively, and when the wheels move along the axes of the axle, the dustproof cover can stretch out and draw back along the axes of the axle. Through the technical scheme provided by the invention, the problem that the sealing structure is complicated in the related technology can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of trains, and in particular to a variable gauge wheelset, a bogie and a vehicle. Background Art

[0002] A variable gauge train is a train whose wheel gauge can be changed. During the operation of the train, the wheel gauge is changed to adapt to tracks of different widths to improve transportation efficiency. This solves the problem of different track widths between different countries and improves the efficiency of railway freight ports.

[0003] In the related art, a variable gauge wheelset is provided on the train, and the sliding mechanism provided on the axle drives the wheels to slide along the axial direction of the axle to achieve the change of the wheel gauge. In addition, a sealing structure is required to seal the sliding space between the wheel and the axle.

[0004] However, the existing variable-gauge wheelset further includes an axle box arranged outside the sliding mechanism, and a sealing structure is arranged on an end cover of the axle box, resulting in a complex structure. Utility Model Content

[0005] The utility model provides a variable gauge wheelset, a bogie and a vehicle to solve the problem of complex sealing structure in the related technology.

[0006] According to one aspect of the utility model, a variable gauge wheelset is provided, which comprises: an axle; a wheel, which is movably mounted on the axle along the axis of the axle, and the wheel can rotate around the axis of the axle; a sealing assembly, comprising a dust cover, which is mounted on the axle, and the two ends of the dust cover are respectively detachably connected to the axle and the wheel, and when the wheel moves along the axis of the axle, the dust cover can be extended and retracted along the axis of the axle.

[0007] Furthermore, the sealing assembly also includes two sealing seats, which are respectively arranged on the wheel and the axle, and the two ends of the dust cover are respectively detachably connected to the two sealing seats.

[0008] Furthermore, the sealing assembly also includes two clamps, the two ends of the dust cover are respectively sleeved on the outer periphery of the two sealing seats, the two clamps are respectively sleeved on the outer periphery of the two sealing seats, and the inner wall of the clamp is in contact with the outer wall of the dust cover and the outer wall of the sealing seat.

[0009] Furthermore, an annular groove is provided at both ends of the dust cover, the annular groove penetrates the end wall of the dust cover, and the inner side wall of the clamp fits with the annular groove.

[0010] Furthermore, a mounting seat is fixedly sleeved on the axle, wherein a sealing seat is arranged on the mounting seat, and the mounting seat is a brake wheel capable of cooperating with the brake assembly.

[0011] Furthermore, an end wall of the other sealing seat facing the wheel has a mounting groove, and a portion of the wheel is located in the mounting groove.

[0012] Furthermore, the dust cover is made of rubber or tarpaulin.

[0013] Furthermore, the variable gauge wheelset also includes an inner gear ring and an outer gear ring that are meshed with each other, the inner gear ring is fixedly mounted on the wheel, and the outer gear ring is fixedly mounted on the axle, and the inner gear ring can move along the axis of the axle; and / or, there are two wheels, and the two wheels are rotatably mounted on both ends of the axle around the axis of the axle, and the two wheels can approach or move away from each other, and dust covers are arranged between the two wheels and the axle.

[0014] According to another aspect of the utility model, a bogie is provided, and the bogie comprises the variable gauge wheelset provided above.

[0015] According to another aspect of the utility model, a vehicle is provided, and the vehicle comprises the bogie provided above.

[0016] By applying the technical solution of the utility model, the track gauge wheelset includes an axle, a wheel and a sealing assembly. When the train changes track, the wheel moves along the axis of the axle and drives the dust cover to move along the axis of the axle. The dust cover can be compressed or stretched to seal and protect the space between the wheel and the axle. With the above structure, the dust cover is directly set between the wheel and the axle. Compared with the existing sealing structure set on the axle box, the axle box structure does not need to be involved, and the structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a variable gauge wheelset provided according to an embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A cross-sectional view of the variable gauge wheelset in FIG.

[0020] Figure 3 Shows Figure 1 Another cross-sectional view of the variable gauge wheelset.

[0021] The above drawings include the following reference numerals:

[0022] 10. Axle; 11. Mounting seat;

[0023] 20. Wheels;

[0024] 30. Sealing assembly; 31. Dust cover; 32. Sealing seat; 33. Clamp; 34. Connector;

[0025] 40. Internal gear ring;

[0026] 50. Outer gear ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] like Figures 1 to 3 As shown, an embodiment of the utility model provides a variable-gauge wheelset, which includes an axle 10, a wheel 20, and a sealing assembly 30. The wheel 20 is movably mounted on the axle 10 along the axis of the axle 10, and the wheel 20 can rotate around the axis of the axle 10; the sealing assembly 30 includes a dust cover 31, which is mounted on the axle 10, and the two ends of the dust cover 31 are detachably connected to the axle 10 and the wheel 20 respectively. When the wheel 20 moves along the axis of the axle 10, the dust cover 31 is retractable along the axis of the axle 10.

[0029] By applying the technical solution of the utility model, the track gauge change wheelset includes an axle 10, a wheel 20 and a sealing assembly 30. When the train changes track, the wheel 20 moves along the axis of the axle 10 and drives the dust cover 31 to move along the axis of the axle 10. The dust cover 31 can be compressed or stretched to seal and protect the space between the wheel 20 and the axle 10. With the above structure, the dust cover 31 is directly set between the wheel 20 and the axle 10. Compared with the existing sealing structure set on the axle box, the axle box structure does not need to be involved, and the structure is more simplified.

[0030] It should be noted that the dust cover 31 may be directly connected to the axle 10 and the wheel 20 , or may be indirectly connected to the axle 10 and the wheel 20 .

[0031] like Figure 2 and Figure 3As shown, the sealing assembly 30 also includes two sealing seats 32, which are respectively arranged on the wheel 20 and the axle 10, and the two ends of the dust cover 31 are respectively detachably connected to the two sealing seats 32. The two dust covers 31 are connected to the wheel 20 and the axle 10 by using the sealing seats 32, which has the advantages of simple structure and easy installation.

[0032] In other embodiments, the two ends of the dust cover 31 may be directly connected to the wheel 20 and the axle 10 without providing a sealing seat 32, or only one sealing seat 32 may be provided according to actual conditions.

[0033] like Figure 2 As shown, the sealing assembly 30 further includes two clamps 33, and the two ends of the dust cover 31 are respectively sleeved on the outer peripheries of the two sealing seats 32, and the two clamps 33 are respectively sleeved on the outer peripheries of the two sealing seats 32, and the inner side walls of the clamps 33 are in contact with the outer side walls of the dust cover 31 and the outer side walls of the sealing seats 32. The dust cover 31 and the sealing seats 32 are fixed by the clamps 33, which has the advantages of easy installation and low cost.

[0034] In this embodiment, the clamp 33 includes a hoop and a bolt. The hoop has a notch, and the bolt is arranged at the notch to connect the two ends of the hoop.

[0035] An annular groove is provided at both ends of the dust cover 31, and the annular groove penetrates the end wall of the dust cover 31, and the inner wall of the clamp 33 fits with the annular groove. The annular groove can reduce the height difference between the outer wall of the dust cover 31 and the outer wall of the sealing seat 32, thereby facilitating the installation of the clamp 33.

[0036] In this embodiment, the sealing seat 32 has a plurality of mounting holes, which are arranged at intervals along the circumference of the sealing seat 32. The wheel 20 and the axle 10 both have connecting holes corresponding to the plurality of mounting holes. The sealing assembly 30 also includes a plurality of connecting members 34, which pass through the mounting holes and are connected to the connecting holes in a one-to-one correspondence. The above structure has the advantages of simple connection structure and easy operation.

[0037] like Figure 1 As shown, the axle 10 is also fixedly sleeved with a mounting seat 11, wherein a sealing seat 32 is arranged on the mounting seat 11, and the mounting seat 11 is a brake wheel that can cooperate with the brake assembly. The mounting seat 11 is formed by the brake wheel to fix the sealing seat 32, which has the advantage of simple structure.

[0038] In this embodiment, the brake wheel interference sleeve is arranged on the outer circumference of the axle 10 .

[0039] In other embodiments, an annular protrusion may be provided on the axle 10 to facilitate the assembly of the sealing seat 32 .

[0040] Specifically, the end wall of the other sealing seat 32 facing the wheel 20 has a mounting groove, and part of the wheel 20 is located in the mounting groove. The mounting groove can facilitate the positioning of the sealing seat 32 and the wheel 20, thereby facilitating the assembly of the two.

[0041] The dust cover 31 is made of rubber or tarpaulin. The dust cover 31 made of the above materials has the advantages of easy material acquisition and low cost.

[0042] like Figure 2 As shown, the variable gauge wheelset also includes an inner gear ring 40 and an outer gear ring 50 that are meshed with each other. The inner gear ring 40 is fixedly mounted on the wheel 20, and the outer gear ring 50 is fixedly mounted on the axle 10. The inner gear ring 40 can move along the axis of the axle 10. When the axle 10 rotates, a transmission connection can be formed by the inner gear ring 40 and the outer gear ring 50 to drive the wheel 20 to rotate, and the inner gear ring 40 slides relative to the outer gear ring 50 to drive the wheel 20 to move along the axis of the axle 10.

[0043] In this embodiment, there are two wheels 20, which are rotatably mounted on both ends of the axle 10 around the axis of the axle 10, respectively. The two wheels 20 can move closer to or farther from each other, and a dust cover 31 is provided between the two wheels 20 and the axle 10. With the above structure, the axle 10 can be used to drive the two wheels 20 to rotate at the same time, and the dust cover 31 can be used to achieve sealing between the two wheels 20 and the axle 10.

[0044] Another embodiment of the present application provides a bogie, which includes the above-mentioned variable gauge wheelset. When the train changes track, the wheel 20 moves along the axis of the axle 10, and drives the dust cover 31 to move along the axis of the axle 10. The dust cover 31 can be compressed or stretched to seal and protect the space between the wheel 20 and the axle 10. With the above structure, the dust cover 31 is directly set between the wheel 20 and the axle 10. Compared with the existing sealing structure set on the axle box, the axle box structure does not need to be involved, and the structure is more simplified.

[0045] Another embodiment of the present application provides a vehicle, the vehicle includes the above-mentioned variable gauge wheelset. When the train changes track, the wheel 20 moves along the axis of the axle 10, and drives the dust cover 31 to move along the axis of the axle 10. The dust cover 31 can be compressed or stretched to seal and protect the space between the wheel 20 and the axle 10. With the above structure, the dust cover 31 is directly set between the wheel 20 and the axle 10. Compared with the existing sealing structure set on the axle box, the axle box structure does not need to be involved, and the structure is more simplified.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0048] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A variable gauge wheelset, characterized in that: The variable gauge wheelset comprises: Axle (10); A wheel (20) is movably mounted on the axle (10) along the axis of the axle (10), and the wheel (20) is capable of rotating around the axis of the axle (10); The sealing assembly (30) comprises a dust cover (31), wherein the dust cover (31) is sleeved on the axle (10), and the two ends of the dust cover (31) are detachably connected to the axle (10) and the wheel (20), respectively, and when the wheel (20) moves along the axis of the axle (10), the dust cover (31) is retractable along the axis of the axle (10).

2. The variable gauge wheelset according to claim 1, characterized in that: The sealing assembly (30) further comprises two sealing seats (32), the two sealing seats (32) being respectively arranged on the wheel (20) and the axle (10), and the two ends of the dust cover (31) are respectively detachably connected to the two sealing seats (32).

3. The variable gauge wheelset according to claim 2, characterized in that: The sealing assembly (30) further comprises two clamps (33), the two ends of the dust cover (31) are respectively sleeved on the outer peripheries of the two sealing seats (32), the two clamps (33) are respectively sleeved on the outer peripheries of the two sealing seats (32), and the inner side walls of the clamps (33) are in contact with the outer side walls of the dust cover (31) and the outer side walls of the sealing seats (32).

4. The variable gauge wheelset according to claim 3, characterized in that: Both ends of the dust cover (31) are provided with an annular groove, the annular groove penetrates the end wall of the dust cover (31), and the inner side wall of the clamp (33) fits with the annular groove.

5. The variable gauge wheelset according to claim 2, characterized in that: A mounting seat (11) is also fixedly sleeved on the axle (10), wherein one of the sealing seats (32) is arranged on the mounting seat (11), and the mounting seat (11) is a brake wheel capable of cooperating with a brake assembly.

6. The variable gauge wheelset according to claim 2, characterized in that: The end wall of the other sealing seat (32) facing the wheel (20) has a mounting groove, and part of the wheel (20) is located in the mounting groove.

7. The variable gauge wheelset according to any one of claims 1 to 6, characterized in that: The dust cover (31) is made of rubber or tarpaulin.

8. The variable gauge wheelset according to any one of claims 1 to 6, characterized in that: The variable gauge wheelset further comprises an inner gear ring (40) and an outer gear ring (50) meshing with each other, the inner gear ring (40) being fixedly sleeved on the wheel (20), the outer gear ring (50) being fixedly sleeved on the axle (10), and the inner gear ring (40) being movable along the axis of the axle (10); and / or, There are two wheels (20), and the two wheels (20) are respectively rotatably mounted on the two ends of the axle (10) around the axis of the axle (10). The two wheels (20) can move closer to or farther from each other, and the dust cover (31) is arranged between the two wheels (20) and the axle (10).

9. A bogie, characterized in that: The bogie comprises the variable gauge wheelset according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle comprises the bogie according to claim 9.

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