Elastic side bearing and bogie with same

Abstract

The utility model provides an elastic side bearing and a bogie with the elastic side bearing, and the elastic side bearing comprises a seat body which comprises a bottom plate, and a first vertical plate and a second vertical plate which are arranged on the two sides of the bottom plate; the top cover comprises a top plate and a lower convex part which is connected with the top plate and extends downwards, the lower convex part is located between the first vertical plate and the second vertical plate, the first outer convex part comprises a first inclined surface and a second inclined surface which are connected with each other and form a first included angle, and the second outer convex part comprises a third inclined surface and a fourth inclined surface which are connected with each other and form a second included angle; the first side plate is arranged between the first outer convex part and the first vertical plate, the second side plate is arranged between the second outer convex part and the second vertical plate, and the first rubber part is connected between the first outer convex part and the first side plate; and the second rubber part is connected between the second convex part and the second side plate. According to the technical scheme, the problem that in the prior art, the reliability of a rubber layer of a constant-contact elastic side bearing is low under the dual action of longitudinal extrusion and vertical shearing is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic side bearings, in particular to an elastic side bearing and a bogie having the same. Background Art

[0002] Railway freight cars generally include car bodies, bogies, brake devices, coupler buffer devices, etc. Among them, the function of the bogie is to support the car body, guide the vehicle along the track, and bear various loads from the car body and the track.

[0003] At present, railway freight cars basically use constant contact elastic side bearings to obtain better high-speed running stability. Constant contact elastic side bearings can participate in the transmission of loads from the car body. The load borne by the constant contact elastic side bearings is related to its own stiffness and compression deflection, and has nothing to do with whether the car body is loaded or not and how much the load is. The load borne by the constant contact elastic side bearings can provide a certain amount of rotational resistance torque, inhibit the relative rotation between the bogie and the car body, thereby improving the stability of the railway freight car's straight-line operation, especially in the empty car state. In addition, the constant contact elastic side bearings can also avoid the problem of excessive vehicle roll angle caused by driving along the curve when the vehicle passes through the curved driving path.

[0004] In the related art, when the vehicle is running, the vertical load is transmitted by compressing the rubber layer and the elastic body of the constant contact elastic side bearing, and the longitudinal load is transmitted by compressing the rubber layer. Affected by factors such as the unevenness of the track, the rail joints and the triangular pits, the rubber layer will reciprocate up and down. While the rubber layer is subjected to longitudinal compression, it will also produce vertical shear deformation, which makes the rubber layer of the constant contact elastic side bearing less reliable under the dual effects of longitudinal extrusion and vertical shear. Utility Model Content

[0005] The main purpose of the utility model is to provide an elastic side bearing and a bogie having the same, so as to solve the problem of low reliability of the rubber layer of the constant contact elastic side bearing under the dual effects of longitudinal extrusion and vertical shear in the related art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an elastic side bearing is provided, comprising: a seat body, the seat body comprising a bottom plate and a first vertical plate and a second vertical plate arranged on both sides of the bottom plate; a top cover, comprising a top plate and a lower convex portion connected to the top plate and extending downward, the lower convex portion is located between the first vertical plate and the second vertical plate, the lower convex portion is provided with a first outer convex portion protruding toward the first vertical plate and a second outer convex portion protruding toward the second vertical plate, the first outer convex portion comprises a first inclined surface and a second inclined surface connected to each other and forming a first angle, and the second ... A third inclined plane and a fourth inclined plane connected to form a second angle; a first side plate, the first side plate is arranged between the first outer protrusion and the first vertical plate, and the first side plate is provided with a fifth inclined plane matching with the first inclined plane and a sixth inclined plane matching with the second inclined plane; a second side plate, the second side plate is arranged between the second outer protrusion and the second vertical plate, and the second side plate is provided with a seventh inclined plane matching with the third inclined plane and an eighth inclined plane matching with the fourth inclined plane; a first rubber member, connected between the first outer protrusion and the first side plate; a second rubber member, connected between the second outer protrusion and the second side plate.

[0007] Furthermore, the interior of the first rubber member is hollow, and the interior of the second rubber member is hollow.

[0008] Further, the first rubber member is provided with a first through hole corresponding to the intersection of the first inclined surface and the second inclined surface, and the second rubber member is provided with a second through hole corresponding to the intersection of the third inclined surface and the fourth inclined surface.

[0009] Furthermore, the elastic side bearing also includes a first partition, a second partition, a third rubber member and a fourth rubber member. The first rubber member is vulcanized and connected between the first partition and the first outer protrusion, the third rubber member is vulcanized and connected between the first partition and the first side plate, the second rubber member is vulcanized and connected between the second partition and the second outer protrusion, and the fourth rubber member is vulcanized and connected between the second partition and the second side plate.

[0010] Further, the interior of the third rubber piece is hollow, the interior of the fourth rubber piece is hollow, and / or the third rubber piece is provided with a third through hole corresponding to the intersection of the first slope and the second slope, and the fourth rubber piece is provided with a fourth through hole corresponding to the intersection of the third slope and the fourth slope.

[0011] Furthermore, there is a preset distance between the bottom surface of the lower protrusion and the bottom surface of the first side plate.

[0012] Furthermore, in the direction from the top cover to the base body, the distance between the intersection of the first inclined plane and the second inclined plane and the intersection of the third inclined plane and the fourth inclined plane gradually decreases.

[0013] Furthermore, the elastic side bearing also includes an elastic member, and the elastic member is arranged between the top plate and the bottom plate.

[0014] Furthermore, a guide member extending downward is arranged on the top plate, and the elastic member comprises a spring, and the spring is sleeved on the guide member.

[0015] Furthermore, the elastic side bearing also includes a wear plate, and the wear plate is arranged on the top surface of the top plate.

[0016] Furthermore, a connecting structure is arranged between the wear plate and the top plate, the connecting structure includes a connecting column and a connecting hole, the connecting column and the connecting hole are interference fit, one of the connecting column and the connecting hole is arranged on the top plate, and the other of the connecting column and the connecting hole is arranged on the wear plate.

[0017] According to another aspect of the utility model, a bogie is provided, comprising an elastic side bearing, wherein the elastic side bearing is the elastic side bearing mentioned above.

[0018] The technical solution of the utility model is applied, the seat body includes a bottom plate and a first vertical plate and a second vertical plate arranged on the bottom plate, the top cover includes a top plate and a lower convex part, the lower convex part is located between the first vertical plate and the second vertical plate, the lower convex part is provided with a first outer convex part protruding toward the first vertical plate and a second outer convex part protruding toward the second vertical plate, the first outer convex part includes a first inclined surface and a second inclined surface connected to each other and forming a first angle, and the second outer convex part includes a third inclined surface and a fourth inclined surface connected to each other and forming a second angle. The first side plate is arranged between the first outer convex part and the first vertical plate, and the first side plate is provided with a fifth inclined surface matched with the first inclined surface and a sixth inclined surface matched with the second inclined surface. The second side plate is arranged between the second outer convex part and the second vertical plate, and the second side plate is provided with a seventh inclined surface matched with the third inclined surface and an eighth inclined surface matched with the fourth inclined surface. The first rubber member is connected between the first outer convex part and the first side plate, and the second rubber member is connected between the second outer convex part and the second side plate. Through the above-mentioned setting, the first rubber member and the second rubber member are both V-shaped structures, so that different stiffness performance parameters can be adjusted, and then the requirements of different axle weights, fixed distances and deadweights can be matched. At the same time, under the action of the first rubber member and the second rubber member, the vertical deflection of the elastic side bearing is improved, ensuring the stability of the rotation resistance distance. Therefore, the technical solution of the present application effectively solves the problem of low reliability of the rubber layer of the constant contact elastic side bearing under the dual action of longitudinal extrusion and vertical shear in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 A cross-sectional schematic diagram of an embodiment of an elastic side bearing according to the utility model is shown;

[0021] Figure 2Shows Figure 1 A schematic cross-sectional view of a partial structure of an elastic side bearing;

[0022] Figure 3 Shows Figure 2 A schematic cross-sectional view of the elastic side bearing in the AA direction;

[0023] Figure 4 Shows Figure 2 A schematic diagram of the three-dimensional structure of the elastic side bearing;

[0024] Figure 5 Shows Figure 4 A schematic diagram of the three-dimensional structure of the elastic side bearing from another perspective;

[0025] Figure 6 Shows Figure 2 Schematic diagram of the decomposed structure of the elastic side bearing.

[0026] The above drawings include the following reference numerals:

[0027] 10. seat body; 11. bottom plate; 12. first vertical plate; 13. second vertical plate; 20. top cover; 21. top plate; 211. guide member; 22. lower convex portion; 221. first outer convex portion; 2211. first inclined surface; 2212. second inclined surface; 222. second outer convex portion; 2221. third inclined surface; 2222. fourth inclined surface; 31. first side plate; 311. fifth inclined surface; 312. sixth inclined surface; 32. Second side plate; 321, seventh inclined plane; 322, eighth inclined plane; 41, first rubber member; 411, first through hole; 42, second rubber member; 421, second through hole; 43, third rubber member; 431, third through hole; 44, fourth rubber member; 441, fourth through hole; 51, first partition plate; 52, second partition plate; 60, elastic member; 70, wear plate; 80, connecting structure; 81, connecting column; 82, connecting hole. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figure 1 , Figure 2 as well as Figure 6As shown, in this embodiment, the elastic side bearing includes: a seat body 10, a top cover 20, a first side plate 31, a second side plate 32, a first rubber member 41 and a second rubber member 42. The seat body 10 includes a bottom plate 11 and a first vertical plate 12 and a second vertical plate 13 arranged on both sides of the bottom plate 11. The top cover 20 includes a top plate 21 and a lower convex portion 22 connected to the top plate 21 and extending downward, the lower convex portion 22 is located between the first vertical plate 12 and the second vertical plate 13, and the lower convex portion 22 is provided with a first outer convex portion 221 protruding toward the first vertical plate 12 and a second outer convex portion 222 protruding toward the second vertical plate 13, the first outer convex portion 221 includes a first inclined surface 2211 and a second inclined surface 2212 connected to each other and forming a first angle, and the second outer convex portion 222 includes a third inclined surface 2221 and a fourth inclined surface 2222 connected to each other and forming a second angle. The first side plate 31 is arranged between the first outer protrusion 221 and the first vertical plate 12, and is provided with a fifth inclined surface 311 matched with the first inclined surface 2211 and a sixth inclined surface 312 matched with the second inclined surface 2212. The second side plate 32 is arranged between the second outer protrusion 222 and the second vertical plate 13, and is provided with a seventh inclined surface 321 matched with the third inclined surface 2221 and an eighth inclined surface 322 matched with the fourth inclined surface 2222. The first rubber member 41 is connected between the first outer protrusion 221 and the first side plate 31. The second rubber member 42 is connected between the second outer protrusion 222 and the second side plate 32.

[0032] According to the technical solution of this embodiment, the seat body 10 includes a bottom plate 11 and a first vertical plate 12 and a second vertical plate 13 arranged on the bottom plate 11. The top cover 20 includes a top plate 21 and a lower protrusion 22. The lower protrusion 22 is located between the first vertical plate 12 and the second vertical plate 13. The lower protrusion 22 is provided with a first outer protrusion 221 protruding toward the first vertical plate 12 and a second outer protrusion 222 protruding toward the second vertical plate 13. The first outer protrusion 221 includes a first inclined surface 2211 and a second inclined surface 2212 connected to each other and forming a first angle. The second outer protrusion 222 includes a third inclined surface 2221 and a fourth inclined surface 2222 connected to each other and forming a second angle. The first side plate 31 is arranged between the first outer protrusion 221 and the first vertical plate 12. The first side plate 31 is provided with a fifth inclined surface 311 matched with the first inclined surface 2211 and a sixth inclined surface 312 matched with the second inclined surface 2212. The second side plate 32 is arranged between the second outer protrusion 222 and the second vertical plate 13, and the second side plate 32 is provided with a seventh inclined surface 321 matched with the third inclined surface 2221 and an eighth inclined surface 322 matched with the fourth inclined surface 2222. The first rubber member 41 is connected between the first outer protrusion 221 and the first side plate 31, and the second rubber member 42 is connected between the second outer protrusion 222 and the second side plate 32. Through the above-mentioned arrangement, the first rubber member 41 and the second rubber member 42 are both V-shaped structures, so that different stiffness performance parameters can be adjusted, and then the requirements of different axle loads, fixed distances and deadweights can be matched. At the same time, under the action of the first rubber member 41 and the second rubber member 42, the vertical deflection of the elastic side bearing is improved, and the stability of the turning resistance distance is ensured. Therefore, the technical solution of this embodiment effectively solves the problem of low reliability of the rubber layer of the constant contact elastic side bearing under the dual action of longitudinal extrusion and vertical shear in the related art.

[0033] Specifically, the first angle is in the range of 90° to 150°, and the second angle is in the range of 90° to 150°. Preferably, the first angle is 120°, and the second angle is 120°.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the first rubber member 41 is hollow inside, and the second rubber member 42 is hollow inside. The hollow first rubber member 41 and the hollow second rubber member 42 can make them more easily deformed, and can prevent the first rubber member 41 and the second rubber member 42 from being permanently deformed too much.

[0035] like Figures 1 to 6As shown, in this embodiment, the first rubber member 41 is provided with a first through hole 411 corresponding to the intersection of the first inclined surface 2211 and the second inclined surface 2212, and the second rubber member 42 is provided with a second through hole 421 corresponding to the intersection of the third inclined surface 2221 and the fourth inclined surface 2222. The sizes of the first through hole 411 and the second through hole 421 are adjustable, so that the first rubber member 41 and the second rubber member 42 can be adjusted to obtain different longitudinal stiffness and transverse stiffness, thereby meeting the stiffness requirements of different types of vehicle models.

[0036] like Figures 1 to 6 As shown, in this embodiment, the elastic side bearing further includes a first partition plate 51, a second partition plate 52, a third rubber member 43 and a fourth rubber member 44. The first rubber member 41 is vulcanized and connected between the first partition plate 51 and the first outer protrusion 221, the third rubber member 43 is vulcanized and connected between the first partition plate 51 and the first side plate 31, the second rubber member 42 is vulcanized and connected between the second partition plate 52 and the second outer protrusion 222, and the fourth rubber member 44 is vulcanized and connected between the second partition plate 52 and the second side plate 32. The above arrangement can further improve the performance of the elastic side bearing.

[0037] like Figure 1 , Figure 2 as well as Figure 6 As shown, in this embodiment, the third rubber member 43 is hollow inside, the fourth rubber member 44 is hollow inside, and / or the third rubber member 43 is provided with a third through hole 431 corresponding to the intersection of the first inclined surface 2211 and the second inclined surface 2212, and the fourth rubber member 44 is provided with a fourth through hole 441 corresponding to the intersection of the third inclined surface 2221 and the fourth inclined surface 2222. The above arrangement can be adjusted so that the elastic side bearing can obtain different longitudinal stiffness and transverse stiffness.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, there is a preset distance between the bottom surface of the lower protrusion 22 and the bottom surface of the first side plate 31. The above-mentioned preset distance is the total stroke of the elastic side bearing. When the preset distance is 0, the lower protrusion 22 contacts the bottom plate 11, thereby forming a rigid stop, which can prevent the vehicle body from further rolling over, thereby playing a role in safety protection.

[0039] like Figure 1 and Figure 2As shown, in this embodiment, in the direction from the top cover 20 to the base body 10, the distance between the intersection of the first inclined plane 2211 and the second inclined plane 2212 and the intersection of the third inclined plane 2221 and the fourth inclined plane 2222 gradually decreases. The above arrangement can realize longitudinal automatic positioning. Specifically, by adjusting the angle between the intersection of the first inclined plane 2211 and the second inclined plane 2212 and the intersection of the third inclined plane 2221 and the fourth inclined plane 2222, different vertical stiffness and longitudinal stiffness requirements can be met. Due to the angle between the intersection of the first inclined surface 2211 and the second inclined surface 2212 and the intersection of the third inclined surface 2221 and the fourth inclined surface 2222, when the vehicle body is completed, the wear plate 70 is compressed downward, and then drives the top cover 20 to squeeze the first rubber member 41, the second rubber member 42, the third rubber member 43 and the fourth rubber member 44, and then squeezes the first side plate 31 and the second side plate 32 outward, so that the longitudinal gap between the first side plate 31 and the first vertical plate 12 and the second side plate 32 and the second vertical plate 13 can be eliminated. The elastic side bearing is clearance-matched in the free state, and after compression, it is pressed against the seat body 10 to realize the longitudinal and lateral force transmission, that is, the problem of the existing side bearing assembly and maintenance requiring special tooling is eliminated.

[0040] It should be noted that the angle between the intersection of the first inclined surface 2211 and the second inclined surface 2212 and the intersection of the third inclined surface 2221 and the fourth inclined surface 2222 is between 3° and 45°.

[0041] like Figures 1 to 6 As shown, in this embodiment, the elastic side bearing also includes an elastic member 60, which is arranged between the top plate 21 and the bottom plate 11. The elastic member 60 can provide an elastic reset force to the top cover 20. Specifically, there is a gap between the bottom surface of the elastic member 60 and the bottom plate 11. When the elastic side bearing is initially subjected to a vertical load, the elastic member 60 first exerts its bearing capacity in the first stage; in the second stage, as the vertical load gradually increases and the gap becomes zero, the first rubber member 41, the second rubber member 42, the third rubber member 43 and the fourth rubber member 44 vulcanized together provide vertical, longitudinal and transverse three-dimensional stiffness. This structural setting realizes the two-level stiffness of the elastic side bearing, and at the same time alleviates the stress state of the first rubber member 41, the second rubber member 42, the third rubber member 43 and the fourth rubber member 44, solving the problems of large elastic creep, large permanent deformation, easy cracking and insufficient strength of the first rubber member 41, the second rubber member 42, the third rubber member 43 and the fourth rubber member 44.

[0042] like Figures 1 to 6 As shown, in this embodiment, a guide member 211 extending downward is provided on the top plate 21, and the elastic member 60 includes a spring, which is sleeved on the guide member 211. The provision of the guide member 211 can position the spring, thereby making the position of the spring more stable.

[0043] like Figures 1 to 6 As shown, in this embodiment, the elastic side bearing further includes a wear plate 70, and the wear plate 70 is arranged on the top surface of the top plate 21. The wear plate 70 can be replaced after being damaged, thereby avoiding damage to other structures of the elastic side bearing.

[0044] like Figures 1 to 6 As shown, in this embodiment, a connection structure 80 is provided between the wear plate 70 and the top plate 21, and the connection structure 80 includes a connection column 81 and a connection hole 82, and the connection column 81 and the connection hole 82 are interference fit, and one of the connection column 81 and the connection hole 82 is provided on the top plate 21, and the other of the connection column 81 and the connection hole 82 is provided on the wear plate 70. The provision of the connection structure 80 can make the connection between the wear plate 70 and the top plate 21 more stable, and at the same time, can make the wear plate 70 and the top plate 21 easy to disassemble, thereby reducing the difficulty of assembly and disassembly.

[0045] The elastic side bearing of this embodiment has the following advantages:

[0046] Under the same elastic side bearing size interface conditions, the serialization of elastic side bearings is realized, saving manufacturing and maintenance costs.

[0047] The elastic side bearing realizes two levels of stiffness, thus improving the reliability of the elastic side bearing.

[0048] The elastic side bearing achieves the large deflection target and provides vehicle stability and safety.

[0049] The double "V"-shaped structure and the additional elastic member enable the first rubber member, the second rubber member, the third rubber member and the fourth rubber member to have a small stress state and a small creep performance, thereby extending the service life.

[0050] The assembly and maintenance are convenient, no special assembly tools are required, and the reliability is high. In the free state, the first side plate and the second side plate are set with a gap with the seat body for easy assembly, but in the working state, the first side plate and the second side plate move downward under the action of the vehicle's gravity, forcing the first side plate and the second side plate to expand outward, eliminating the gap between the seat body and realizing longitudinal gap-free positioning.

[0051] According to another aspect of the present application, a bogie is provided. The bogie of this embodiment includes an elastic side bearing, and the elastic side bearing is the elastic side bearing described above. The elastic side bearing described above can solve the problems of the elastic side bearings in the prior art, such as large elastic creep, large permanent deformation, easy cracking, and insufficient strength. Therefore, the bogie having the elastic side bearing described above also has the above advantages.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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. An elastic side bearing, It is characterized in that include: A base body (10), the base body (10) comprising a bottom plate (11) and a first vertical plate (12) and a second vertical plate (13) arranged on both sides of the bottom plate (11); A top cover (20), comprising a top plate (21) and a lower convex portion (22) connected to the top plate (21) and extending downward, wherein the lower convex portion (22) is located between the first vertical plate (12) and the second vertical plate (13), and the lower convex portion (222) is provided with a first outer convex portion (221) protruding toward the first vertical plate (12) and a second outer convex portion (222) protruding toward the second vertical plate (13), wherein the first outer convex portion (221) comprises a first inclined surface (2211) and a second inclined surface (2212) which are connected to each other and form a first angle, and the second outer convex portion (222) comprises a third inclined surface (2221) and a fourth inclined surface (2222) which are connected to each other and form a second angle; a first side plate (31), the first side plate (31) being arranged between the first outer protrusion (221) and the first vertical plate (12), the first side plate (31) being provided with a fifth inclined surface (311) cooperating with the first inclined surface (2211) and a sixth inclined surface (312) cooperating with the second inclined surface (2212); a second side plate (32), the second side plate (32) being arranged between the second outer protrusion (222) and the second vertical plate (13), the second side plate (32) being provided with a seventh inclined surface (321) cooperating with the third inclined surface (2221) and an eighth inclined surface (322) cooperating with the fourth inclined surface (2222); A first rubber member (41) connected between the first outer protrusion (221) and the first side plate (31); A second rubber member (42) is connected between the second outer protrusion (222) and the second side plate (32).

2. The elastic side bearing according to claim 1, It is characterized in that The interior of the first rubber member (41) is hollow, and the interior of the second rubber member (42) is hollow.

3. The elastic side bearing according to claim 1, It is characterized in that The first rubber member (41) is provided with a first through hole (411) corresponding to the intersection of the first inclined surface (2211) and the second inclined surface (2212), and the second rubber member (42) is provided with a second through hole (421) corresponding to the intersection of the third inclined surface (2221) and the fourth inclined surface (2222).

4. The elastic side bearing according to claim 1, It is characterized in that The elastic side bearing also includes a first partition (51), a second partition (52), a third rubber member (43) and a fourth rubber member (44), wherein the first rubber member (41) is vulcanized and connected between the first partition (51) and the first outer protrusion (221), the third rubber member (43) is vulcanized and connected between the first partition (51) and the first side plate (31), the second rubber member (42) is vulcanized and connected between the second partition (52) and the second outer protrusion (222), and the fourth rubber member (44) is vulcanized and connected between the second partition (52) and the second side plate (32).

5. The elastic side bearing according to claim 4, It is characterized in that The interior of the third rubber member (43) is hollow, the interior of the fourth rubber member (44) is hollow, and / or the third rubber member (43) is provided with a third through hole (431) corresponding to the intersection of the first inclined surface (2211) and the second inclined surface (2212), and the fourth rubber member (44) is provided with a fourth through hole (441) corresponding to the intersection of the third inclined surface (2221) and the fourth inclined surface (2222).

6. The elastic side bearing according to any one of claims 1 to 5, It is characterized in that There is a preset distance between the bottom surface of the lower protrusion (22) and the bottom surface of the first side plate (31).

7. The elastic side bearing according to any one of claims 1 to 5, It is characterized in that In the direction from the top cover (20) to the base body (10), the distance between the intersection of the first inclined surface (2211) and the second inclined surface (2212) and the intersection of the third inclined surface (2221) and the fourth inclined surface (2222) gradually decreases.

8. The elastic side bearing according to any one of claims 1 to 5, It is characterized in that The elastic side bearing further comprises an elastic member (60), and the elastic member (60) is arranged between the top plate (21) and the bottom plate (11).

9. The elastic side bearing according to claim 8, It is characterized in that A guide member (211) extending downward is provided on the top plate (21), and the elastic member (60) comprises a spring, which is sleeved on the guide member (211).

10. The elastic side bearing according to any one of claims 1 to 5, It is characterized in that The elastic side bearing further comprises a wear plate (70), and the wear plate (70) is arranged on the top surface of the top plate (21).

11. The elastic side bearing according to claim 10, It is characterized in that A connecting structure (80) is provided between the wear plate (70) and the top plate (21), and the connecting structure (80) includes a connecting column (81) and a connecting hole (82), the connecting column (81) and the connecting hole (82) are interference fit, one of the connecting column (81) and the connecting hole (82) is provided on the top plate (21), and the other of the connecting column (81) and the connecting hole (82) is provided on the wear plate (70).

12. A bogie comprising an elastic side bearing, It is characterized in that The elastic side bearing is the elastic side bearing according to any one of claims 1 to 11.

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