CN209795495U - Axle box suspension device and bogie with same - Google Patents

Abstract

The utility model provides an axle box suspension device and have its bogie, axle box suspension device includes tip wheel pair subassembly, and tip wheel pair subassembly includes first wheel pair, first axle box, first bolster, second bolster and first bearing saddle, and first axle box includes first supporting seat and second supporting seat, and first bolster sets up on first supporting seat, and the second bolster sets up on the second supporting seat, and first bearing saddle sets up between first wheel pair and first axle box; the first guide frame is arranged on the first buffer piece and comprises a first positioning plate, and the first positioning plate is arranged opposite to a side plate of the first shaft box; the bottom surface of the first wedge structure is connected with the second buffer piece; the second guide frame is arranged on the inclined surface of the first wedge structure; the third cushion member is disposed between the first bearing adapter and the first axle housing. Through the utility model provides a technical scheme can solve the unstable technical problem of axle box linkage's among the prior art dynamics performance.

Description

Axle box suspension device and bogie with same

Technical Field

The utility model relates to a bogie technical field particularly, relates to an axle box linkage and have its bogie.

Background

At present, a railway wagon generally comprises a wagon body, a bogie, a braking device, a coupler buffer device and the like. The bogie is an important component of a railway wagon and is a core component influencing the dynamic performance of the wagon. The three-axle bogie is mainly characterized in that compared with the traditional three-large two-axle bogie, the number of axles is more, and the fixed wheelbase is large.

in the prior art, a welded frame type three-axle bogie for a railway wagon generally comprises a framework, a foundation brake device, an axle box suspension device, an elastic side bearing and the like, wherein the axle box suspension device comprises three wheel pairs, an axle box arranged on the wheel pairs, a spring, a wedge, a bearing saddle and the like. The curve passing performance, high-speed running stability and safety performance of the railway vehicle provided with the three-axle bogie are important indexes for examining the vehicle, and the bogie axle box suspension device is strongly related to the dynamic performance of the vehicle, so that the dynamic performance of the vehicle is directly determined and influenced.

The bogie axle box suspension device in the prior art consists of a spring, a wedge, a bearing saddle and an axle box. The end wheel pair of the bogie adopts a double-inclined-wedge structure, and the middle wheel pair is not provided with an inclined wedge. The bearing saddle is arranged in the axle box and is positioned between the axle box and the bearing. The end wheel set is positioned by the inclined wedge surface and the friction bilateral symmetrical structure, the position of the balance point is difficult to determine, and the wheel set belongs to an unstable structure. The middle wheel pair is positioned by the longitudinal and transverse stiffness of the spring, and the axle box spring has too small stiffness, so the dynamic performance of the vehicle is not stable enough. And set up in the prior art axle box and bear the saddle, bear saddle top surface and axle box internal top surface for metal and metal cooperation, easily produce wearing and tearing.

In patent document CN200920100324, a three-axle bogie is provided, which adopts a single-side wedge structure for the end wheel pair, and has no wedge structure for the middle wheel pair, and the axle box is directly matched with the bearing. In patent document CN200920279848, a three-axle bogie for a railway wagon is provided, which adopts a double-side wedge structure for an end wheel set, has no wedge structure for an intermediate wheel set, and is provided with a bearing saddle between an axle box and a bearing. The dynamic performance of the two structures is not stable enough, and the abrasion is large.

SUMMERY OF THE UTILITY MODEL

the utility model discloses a main aim at provides an axle box linkage and have its bogie to solve the unstable technical problem of axle box linkage's among the prior art dynamics.

in order to achieve the above object, according to an aspect of the present invention, there is provided an axle box suspension device, the axle box suspension device including a tip wheel set assembly, the tip wheel set assembly including: the first axle box is arranged on the first wheel pair and comprises a first supporting seat and a second supporting seat, the first buffer part is arranged on the first supporting seat, the second buffer part is arranged on the second supporting seat, and the first bearing saddle is arranged between the first wheel pair and the first axle box; the first guide frame is arranged on the first buffer piece and comprises a first positioning plate, and the first positioning plate is arranged opposite to the side plate of the first axle box so as to be matched and positioned with the side plate of the first axle box through the first positioning plate; the bottom surface of the first wedge structure is connected with the second buffer piece; the second guide frame is arranged on the inclined surface of the first wedge structure; and the third buffer piece is arranged between the first bearing saddle and the first axle box.

Further, the third buffer includes: a first buffer plate; the second buffer plate is arranged opposite to the first buffer plate, and a buffer interval is arranged between the first buffer plate and the second buffer plate; and the connecting piece is arranged between the first buffer plate and the second buffer plate.

Furthermore, one side of the first buffer plate close to the second buffer plate is provided with a buffer concave surface, one side of the second buffer plate close to the first buffer plate is provided with a buffer convex surface, the buffer concave surface and the buffer convex surface are arranged oppositely, and a buffer interval is formed by a gap between the buffer convex surface and the buffer concave surface.

further, the first buffer plate and/or the second buffer plate is made of an elastic material.

further, the third cushion member further includes: the first positioning part is arranged on the first buffer plate and/or the second buffer plate so as to be positioned through the first positioning part.

Further, the end wheel set assembly further comprises: the first wearing part is arranged between the first positioning plate and the side plate of the first shaft box so as to reduce the abrasion of the first positioning plate through the first wearing part.

further, the end wheel set assembly further comprises: and the second wearing piece is arranged between the first wedge structure and the side plate of the first axle box so as to reduce the abrasion of the first wedge structure through the second wearing piece.

Further, the axle box suspension further comprises an intermediate wheelset assembly, the intermediate wheelset assembly comprising: the wheel set comprises a first wheel pair, a first axle box, a second axle box, a third buffer part, a fifth buffer part and a first bearing saddle, wherein the first wheel pair and the second wheel pair are arranged at intervals; the second wedge structure is arranged on the fourth buffer piece; and the third wedge structure is arranged on the fifth buffer piece.

Furthermore, the third wedge structure and the second wedge structure are the same, and the third wedge structure and the second wedge structure are symmetrically arranged on the second axle box.

Further, the axle box suspension device further includes: and the sixth buffer piece is arranged between the second bearing saddle and the second shaft box so as to buffer through the sixth buffer piece.

Further, the first wedge structure is arranged on one side of the first axle box close to the second axle box.

Further, the axle box suspension includes two end wheelset assemblies and a middle wheelset assembly disposed between the two end wheelset assemblies.

According to the utility model discloses a further aspect provides a bogie, and bogie includes axle box suspension, and axle box suspension is the axle box suspension that the aforesaid provided.

Use the technical scheme of the utility model, the first locating plate of first pedestal cooperates the location with the curb plate of primary shaft case to provide vertical rigidity location. The lower part of the first inclined wedge structure is provided with a second buffer piece which provides supporting force for the first inclined wedge structure, component force is generated by the inclined surface of the first inclined wedge structure and is balanced with force between the first positioning plate and the side plate of the first axle box, and larger longitudinal positioning rigidity is provided. Meanwhile, the longitudinal and transverse positioning rigidity of the third buffer part is reasonably set, so that a better dynamic performance effect can be realized, and the stability of the dynamic performance is improved. Therefore, through the utility model provides a technical scheme, can solve the unstable technical problem of axle box linkage's among the prior art dynamics performance.

Drawings

the accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an axle box suspension according to an embodiment of the present invention;

Fig. 2 shows a schematic structural diagram of an end wheel pair assembly according to an embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of an intermediate wheel pair assembly according to an embodiment of the present invention;

Fig. 4 illustrates a front view of a first axle housing according to an embodiment of the present invention;

Fig. 5 illustrates a top view of a first axle housing provided in accordance with an embodiment of the present invention;

Fig. 6 illustrates a front view of a third buffer provided according to an embodiment of the present invention;

Fig. 7 shows a top view of a third buffer provided according to an embodiment of the present invention;

fig. 8 shows a left side view of a third buffer provided according to an embodiment of the present invention;

FIG. 9 illustrates a front view of a first bearing adapter provided in accordance with an embodiment of the present invention;

FIG. 10 illustrates a top view of a first bearing adapter provided in accordance with an embodiment of the present invention; and

Fig. 11 shows a left side view of a first bearing saddle according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. An end wheel set assembly; 11. a first pair of wheels; 12. a first axle box; 121. a first support base; 122. a second support seat; 13. a first buffer member; 14. a second buffer member; 15. a first bearing saddle; 16. a first guide frame; 161. a first positioning plate; 17. a first cam structure; 18. a third buffer member; 181. a first buffer plate; 1811. a buffer concave surface; 182. a second buffer plate; 1821. a buffer convex surface; 183. a connecting member; 184. a first positioning portion; 191. a first wear member; 192. a second wear member; 110. a second guide frame; 20. a middle wheel pair assembly; 21. a second pair of wheels; 22. a second shaft box; 221. a third support seat; 222. a fourth supporting seat; 23. a fourth buffer member; 24. a fifth buffer member; 25. a second bearing saddle; 26. a second cam structure; 27. a third wedge structure; 28. a sixth buffer member; 291. a third guide frame; 292. a fourth guide frame; 30. and (4) constructing the frame.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 11, an axle box suspension device according to an embodiment of the present invention includes an end wheel pair assembly 10. As shown in fig. 2, the end wheelset assembly 10 includes: the first wheel pair 11, the first axle box 12, the first cushion member 13, the second cushion member 14, the first bearing saddle 15, the first guide frame 16, the first wedge structure 17, the second guide frame 110, and the third cushion member 18. As shown in fig. 4 and 5, the first axle box 12 is disposed on the first wheel pair 11, and the first axle box 12 includes a first support seat 121 and a second support seat 122, the first cushion member 13 is disposed on the first support seat 121, and the second cushion member 14 is disposed on the second support seat 122. The first bearing adapter 15 is disposed between the first wheel pair 11 and the first axle box 12, and the structure of the first bearing adapter 15 is shown in fig. 9-11. The first guide frame 16 is disposed on the first cushion 13, and the first guide frame 16 includes a first positioning plate 161, where the first positioning plate 161 is disposed opposite to a side plate of the first shaft box 12, so as to be positioned by the first positioning plate 161 and the side plate of the first shaft box 12 in a matching manner. Specifically, the side plate in this embodiment is connected to the first supporting seat 121 and the second supporting seat 122.

Specifically, the first positioning plate 161 in this embodiment is disposed at one end of the first guide frame 16 close to the first axle box 12, and the first positioning plate 161 may be disposed at an interval with a side plate of the first axle box 12, and during operation, the first positioning plate 161 abuts against the first axle box 12 to perform positioning. The bottom surface of the first cam structure 17 is connected to the second cushion member 14, the second guide frame 110 is disposed on the inclined surface of the first cam structure 17, and the third cushion member 18 is disposed between the first bearing saddle 15 and the first axle box 12. A first bearing is arranged on the first wheel pair 11, on which first bearing the first bearing adapter 15 is arranged.

With the pedestal suspension provided in this embodiment, in operation, the first positioning plate 161 of the first pedestal 16 abuts against the side plate of the first axle housing 12 for cooperative positioning, thereby providing a longitudinally rigid positioning. The lower part of the first wedge structure 17 is a second buffer 14, the second buffer 14 will provide a supporting force for the first wedge structure 17, the component force generated by the inclined surface of the first wedge structure 17 balances with the force between the first positioning plate 161 and the side plate of the first axle box 12, and provides a larger longitudinal positioning rigidity. Meanwhile, the longitudinal and transverse positioning rigidity of the third buffer member 18 is reasonably set, so that the positioning rigidity of the first positioning plate 161 can be relieved, certain elastic positioning is provided, a good dynamic performance effect is realized, and the continuous and stable dynamic performance of the vehicle is ensured. The third cushion member 18 can also prevent wear due to direct contact between the first axial direction and the first bearing saddle 15, thereby reducing wear.

Specifically, the first cushion member 13 may be provided as a spring; or the second cushion 14 is provided as a spring; or both the first cushion member 13 and the second cushion member 14 may be provided as springs. In the present embodiment, the first buffer member 13 and the second buffer member 14 may be provided as springs to better perform a buffering function.

specifically, as shown in fig. 6 to 8, the third cushion 18 in the present embodiment includes a first cushion plate 181, a second cushion plate 182, and a connecting member 183. The second buffer plate 182 is opposite to the first buffer plate 181, a buffer area is provided between the first buffer plate 181 and the second buffer plate 182, and the connecting member 183 is provided between the first buffer plate 181 and the second buffer plate 182. With the adoption of the arrangement, when the first buffer plate 181 or the second buffer plate 182 is extruded, the buffer area between the first buffer plate 181 and the second buffer plate 182 can effectively play a buffer role, so that a better dynamic performance effect is realized. Specifically, by reasonably setting the structure, size, material and other parameters of the first buffer plate 181, the second buffer plate 182 and the connecting member 183, the longitudinal and transverse positioning rigidity of the corresponding third buffer member 18 can be obtained, so as to better improve the dynamic performance effect.

In order to better improve the dynamic performance effect, in this embodiment, a buffering concave surface 1811 is disposed on a side of the first buffering plate 181 close to the second buffering plate 182, a buffering convex surface 1821 is disposed on a side of the second buffering plate 182 close to the first buffering plate 181, the buffering concave surface 1811 is opposite to the buffering convex surface 1821, and a gap between the buffering convex surface 1821 and the buffering concave surface 1811 forms a buffering area. With such an arrangement, when the first buffer plate 181 or the second buffer plate 182 is pressed, the distance between the buffer concave surface 1811 and the buffer convex surface 1821 changes, and the buffer area changes, so as to better play a role in buffering, thereby achieving a better dynamic performance effect.

Specifically, the first buffer plate 181 may be made of an elastic material; or the second buffer plate 182 is made of an elastic material; or both the first and second buffer plates 181 and 182 are made of an elastic material. In the present embodiment, in order to better improve the buffering effect, the first buffer plate 181 and the second buffer plate 182 are both made of an elastic material. Specifically, the first buffer plate 181 and the second buffer plate 182 may be both rubber pads.

In this embodiment, the third buffer 18 further includes a first positioning portion 184 for positioning by the first positioning portion 184. The first positioning portion 184 may be provided on the first buffer plate 181; or the first positioning portion 184 is provided on the second buffer plate 182; alternatively, the first positioning portions 184 may be provided on both the first cushion plate 181 and the second cushion plate 182. Specifically, in this embodiment, the first positioning portion 184 is disposed at the end of the first buffer plate 181 far away from the second buffer plate 182, and the first positioning portion 184 is also disposed at the end of the second buffer plate 182 far away from the first buffer plate 181, so that the first positioning portion 184 is respectively positioned with the first axle box 12 and the first bearing saddle 15, thereby improving the positioning accuracy, avoiding the phenomenon of poor buffering effect caused by the position deviation of the third buffer member 18 during the operation process, and better realizing the dynamic performance.

Specifically, the first axle housing 12 is provided with a second positioning portion for positioning in cooperation with the first positioning portion 184, and the first bearing saddle 15 is provided with a third positioning portion for positioning in cooperation with the first positioning portion 184. With such an arrangement, the third cushion 18 can be positioned better to achieve better dynamic performance effects.

in this embodiment, the end wheelset assembly 10 further includes a first wear member 191, and the first wear member 191 is disposed between the first locating plate 161 and the side plate of the first axle box 12 to reduce wear of the first locating plate 161 by the first wear member 191. Specifically, in this embodiment, the first wear member 191 may be disposed on the first positioning plate 161, the first wear member 191 may be made of a non-metallic material or a metallic material, and the first wear member 191 may be a wear plate.

Specifically, the end wheelset assembly 10 in this embodiment further includes a second wear member 192, the second wear member 192 being disposed between the first cam structure 17 and the side plate of the first axle box 12 to slow wear of the first cam structure 17 by the second wear member 192. Specifically, second wear member 192 is disposed on a side plate of first cam structure 17, the side plate of first cam structure 17 being located between the bottom surface and the inclined surface of first cam structure 17. Second wear member 192 can be made of a metallic or non-metallic material, and second wear member 192 can also be a wear plate. In this embodiment, the second wear member 192 may be made of non-metallic material such as leather, and the second wear member 192 contacts the side plate of the axle box, so that the second wear member 192 can reduce the friction between the first axle box 12 and the first cam structure 17, and at the same time, play a certain role in damping and buffering.

As shown in fig. 3, in the present embodiment, the axlebox suspension further comprises an intermediate wheelset assembly 20. The intermediate wheelset assembly 20 includes: a second wheel pair 21, a second axle box 22, a fourth cushion member 23, a fifth cushion member 24, a second bearing saddle 25, a second wedge structure 26 and a third wedge structure 27. The second wheel pair 21 is spaced apart from the first wheel pair 11, the second axle box 22 is disposed on the second wheel pair 21, the second axle box 22 includes a third support seat 221 and a fourth support seat 222, the fourth cushion member 23 is disposed on the third support seat 221, the fifth cushion member 24 is disposed on the fourth support seat 222, and the second bearing saddle 25 is disposed between the second wheel pair 21 and the second axle box 22. The second wedge structure 26 is provided on the fourth bumper 23. A third ramp structure 27 is provided on the fifth cushion 24. Both the third cushion 18 and the fourth cushion 23 in this embodiment may be springs. A second bearing is arranged on the second wheel pair 21, on which second bearing a second bearing saddle 25 is arranged.

specifically, the second axle box 22 may have the same structure as the first axle box 12, and the second bearing saddle 25 may have the same structure as the first bearing saddle 15. The first and second housings 12, 22 may each be of symmetrical construction.

With the intermediate wheelset assembly 20 having such a structure, the fourth buffer member 23 under the second wedge structure 26 and the fifth buffer member 24 under the third wedge structure 27 will generate a supporting force when being compressed, and at the same time, the horizontal component force on the inclined surface of the second wedge structure 26 and the horizontal component force on the inclined surface of the third wedge structure 27 are balanced with each other, so as to achieve a better dynamic performance effect.

specifically, the third wedge structure 27 and the second wedge structure 26 in this embodiment are the same structure, and the third wedge structure 27 and the second wedge structure 26 are symmetrically arranged on the second axle box 22. By adopting the symmetrical structure, the stability of the dynamic performance can be further improved.

in this embodiment, the intermediate wheel pair assembly 20 further includes a sixth cushion member 28, the sixth cushion member 28 being disposed between the second bearing adapter 25 and the second axle box 22 for cushioning by the sixth cushion member 28. By reasonably setting the longitudinal and transverse positioning stiffness of the sixth cushion 28, a better dynamic performance effect can be achieved. Meanwhile, the sixth buffer piece 28 can prevent the second shaft box 22 from directly contacting the second bearing saddle 25, so that abrasion between the second shaft box 22 and the second bearing saddle 25 is avoided, and the abrasion of the whole device is reduced. Specifically, the sixth cushion member 28 in the present embodiment may have the same structure as the third cushion member 18.

To further reduce wear, a second wear member 192 is provided on the side of second cam structure 26 adjacent second journal 22 to reduce wear between second cam structure 26 and the side plate of second journal 22 via second wear member 192. A second wear member 192 is also provided on the side of the third cam structure 27 adjacent the second journal 22 to reduce wear between the third cam structure 27 and the second journal 22 via the second wear member 192.

In this embodiment, the intermediate wheelset assembly 20 further includes a third guide frame 291 and a fourth guide frame 292, the third guide frame 291 is disposed above the second wedge structure 26, and the fourth guide frame 292 is disposed above the third wedge structure 27. The inclined plane of the third guide frame 291 and the inclined plane of the second wedge structure 26 are arranged oppositely, the inclined plane of the fourth guide frame 292 and the inclined plane of the third wedge structure 27 are arranged oppositely, and better positioning and better dynamic performance can be provided through the matching of the third guide frame 291 and the second wedge structure 26 and the matching of the fourth guide frame 292 and the third wedge structure 27.

Specifically, the first cam structure 17 may be disposed on a side of the first axle box 12 away from the second axle box 22, or the first cam structure 17 may be disposed on a side of the first axle box 12 close to the second axle box 22. In this embodiment, the first cam structure 17 is disposed on a side of the first casing 12 adjacent to the second casing 22. With such an arrangement, the stability of the dynamic performance can be improved better.

specifically, as shown in fig. 1, the axle box suspension of the present embodiment includes two end wheelset assemblies 10 and a middle wheelset assembly 20, and the middle wheelset assembly 20 is disposed between the two end wheelset assemblies 10. The axle box suspension device in the embodiment can better provide stability of dynamic performance.

The embodiment two of the utility model provides a bogie, bogie include axle box suspension and framework 30, and axle box suspension is the axle box suspension that embodiment one provided. The frame 30 in the present embodiment is disposed above the first guide frame 16, the second guide frame 110, the third guide frame 291, and the fourth guide frame 292.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the dynamic performance of the vehicle can be effectively improved, and the technical upgrade is realized; the dynamic performance of the vehicle is ensured to be continuously stable, and the safety and the reliability are improved; the abrasion between the first shaft box 12 and the first bearing saddle 15 is avoided, the abrasion between the second shaft box 22 and the second bearing saddle 25 is avoided, and the overhaul and maintenance cost is reduced; by providing the third cushion member 18 in the first axle box 12 and the sixth cushion member 28 in the second axle box 22, the end wheelset assembly 10 and the intermediate wheelset assembly 20 can be elastically positioned, and a low-power effect can be achieved.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the dynamic performance of the vehicle can be effectively improved, and the technical upgrade is realized; the dynamic performance of the vehicle is ensured to be continuously stable, and the safety and the reliability are improved; the abrasion between the first shaft box 12 and the first bearing saddle 15 is avoided, the abrasion between the second shaft box 22 and the second bearing saddle 25 is avoided, and the overhaul and maintenance cost is reduced; by providing the third cushion member 18 in the first axle box 12 and the sixth cushion member 28 in the second axle box 22, the end wheelset assembly 10 and the intermediate wheelset assembly 20 can be elastically positioned, and a low-power effect can be achieved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. An axle box suspension arrangement, characterized in that the axle box suspension arrangement comprises an end wheelset assembly (10), the end wheelset assembly (10) comprising:

The damping device comprises a first wheel pair (11), a first axle box (12), a first damping member (13), a second damping member (14) and a first bearing saddle (15), wherein the first axle box (12) is arranged on the first wheel pair (11), the first axle box (12) comprises a first supporting seat (121) and a second supporting seat (122), the first damping member (13) is arranged on the first supporting seat (121), the second damping member (14) is arranged on the second supporting seat (122), and the first bearing saddle (15) is arranged between the first wheel pair (11) and the first axle box (12);

the first guide frame (16) is arranged on the first buffer (13), the first guide frame (16) comprises a first positioning plate (161), and the first positioning plate (161) is arranged opposite to a side plate of the first axle box (12) so as to be matched and positioned with the side plate of the first axle box (12) through the first positioning plate (161);

A first wedge structure (17), wherein the bottom surface of the first wedge structure (17) is connected with the second buffer piece (14);

A second guide frame (110), wherein the second guide frame (110) is arranged on the inclined surface of the first wedge structure (17);

a third cushion (18) disposed between the first bearing saddle (15) and the first axle box (12).

2. Axlebox suspension according to claim 1, characterized in that the third bumper (18) comprises:

A first buffer plate (181);

The second buffer plate (182) is arranged opposite to the first buffer plate (181), and a buffer interval is arranged between the first buffer plate (181) and the second buffer plate (182);

a connector (183) disposed between the first buffer plate (181) and the second buffer plate (182).

3. The axlebox suspension arrangement according to claim 2, characterized in that a side of the first bumper plate (181) adjacent to the second bumper plate (182) has a concave bumper surface (1811), and a side of the second bumper plate (182) adjacent to the first bumper plate (181) has a convex bumper surface (1821), the concave bumper surface (1811) being arranged opposite to the convex bumper surface (1821), and a gap between the convex bumper surface (1821) and the concave bumper surface (1811) forming the bumper zone.

4. Axlebox suspension arrangement according to claim 2, characterized in that the first damping plate (181) and/or the second damping plate (182) are made of an elastic material.

5. An axlebox suspension according to claim 2, characterized in that the third bumper (18) further comprises:

A first positioning portion (184), wherein the first positioning portion (184) is provided on the first buffer plate (181) and/or the second buffer plate (182) so as to be positioned by the first positioning portion (184).

6. An axlebox suspension arrangement according to claim 1, characterised in that the end wheelset assembly (10) further comprises:

A first wear member (191) disposed between the first locating plate (161) and a side plate of the first axle box (12) to mitigate wear of the first locating plate (161) by the first wear member (191).

7. An axlebox suspension arrangement according to claim 1, characterised in that the end wheelset assembly (10) further comprises:

A second wear member (192) disposed between the first ramp structure (17) and a side plate of the first axle box (12) to mitigate wear of the first ramp structure (17) by the second wear member (192).

8. An axlebox suspension according to claim 1, characterized in that the axlebox suspension further comprises an intermediate wheelset assembly (20), the intermediate wheelset assembly (20) comprising:

the wheel set comprises a second wheel set (21), a second axle box (22), a fourth buffer piece (23), a fifth buffer piece (24) and a second bearing saddle (25), wherein the second wheel set (21) and the first wheel set (11) are arranged at intervals, the second axle box (22) is arranged on the second wheel set (21), the second axle box (22) comprises a third supporting seat (221) and a fourth supporting seat (222), the fourth buffer piece (23) is arranged on the third supporting seat (221), the fifth buffer piece (24) is arranged on the fourth supporting seat (222), and the second bearing saddle (25) is arranged between the second wheel set (21) and the second axle box (22);

a second wedge structure (26) provided on the fourth bumper (23);

A third ramp structure (27) arranged on the fifth cushioning element (24).

9. Axlebox suspension according to claim 8, characterized in that the third ramp structure (27) and the second ramp structure (26) are of the same construction, the third ramp structure (27) and the second ramp structure (26) being symmetrically arranged on the second axlebox (22).

10. The axlebox suspension of claim 8, further comprising:

And a sixth cushion member (28) provided between the second bearing saddle (25) and the second journal (22) to be cushioned by the sixth cushion member (28).

11. axlebox suspension arrangement according to claim 8, characterized in that the first ramp structure (17) is arranged on the side of the first axlebox (12) near the second axlebox (22).

12. An axlebox suspension according to claim 8, characterized in that the axlebox suspension comprises two of the end wheelset assemblies (10) and one of the intermediate wheelset assemblies (20), the intermediate wheelset assembly (20) being arranged between the two end wheelset assemblies (10).

13. a bogie characterised in that it comprises an axlebox suspension according to any one of claims 1 to 12.