Side frame structure, bogie and railway vehicle

Abstract

The utility model provides a side frame structure, a bogie and a railway vehicle, and the side frame structure comprises a side frame body; the first guide frame and the second guide frame are arranged at the two ends of the side frame body respectively; the third guide frame and the fourth guide frame are both connected with the side frame body, the third guide frame and the fourth guide frame are located between the first guide frame and the second guide frame, the first guide frame and the third guide frame are arranged adjacently, and the second guide frame and the fourth guide frame are arranged adjacently; the first gasket structure is connected to the first guide frame through a first connecting structure; the second gasket structure is connected to the third guide frame through a second connecting structure; wherein the first gasket structure and the second gasket structure are correspondingly arranged. According to the technical scheme, the problem of poor precision of the side frame in the prior art is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of bogie technology, and more specifically, to a side frame structure, a bogie, and a railway vehicle. Background Technology

[0002] Railway freight car bogies are key components that ensure the safe and smooth operation of trains, and their structural design and manufacturing quality directly affect the performance and reliability of the vehicles. For a long time, cast steel three-piece bogies have been widely used due to their simple structure, reliable performance, low cost, and good wheel load distribution.

[0003] The bogie side frame supports important components such as wheels during railway freight car operation, ensuring the smooth operation of the freight car. Specifically, it has the following functions: First, it bears the heavy load of the axle and transmits the acceleration reaction force; second, it maintains the synchronization and stability of the front and rear wheels; third, it limits the rotation range of the wheel set and generates tilting force, making the steering more stable; fourth, it isolates the bearings from the external environment, preventing dust and moisture from entering and protecting the bearings.

[0004] In related technologies, the side frame is made by casting, and its accuracy is poor due to the limitations of casting tooling. Utility Model Content

[0005] The main purpose of this utility model is to provide a side frame structure, bogie, and railway vehicle to solve the problem of poor accuracy of side frames in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a side frame structure is provided, comprising: a side frame body; a first guide frame and a second guide frame, respectively disposed at both ends of the side frame body; a third guide frame and a fourth guide frame, both connected to the side frame body, the third guide frame and the fourth guide frame being located between the first guide frame and the second guide frame, the first guide frame and the third guide frame being disposed adjacent to each other, and the second guide frame and the fourth guide frame being disposed adjacent to each other; a first gasket structure being connected to the first guide frame via a first connecting structure; and a second gasket structure being connected to the third guide frame via a second connecting structure; wherein the first gasket structure and the second gasket structure are disposed correspondingly.

[0007] Furthermore, the first gasket structure includes a first gasket member and a second gasket member, which are spaced apart in the width direction of the side frame body.

[0008] Furthermore, a portion of the structure of the first gasket is connected to the surface of the first guide frame facing the third guide frame, and the remaining portion of the first gasket is connected to the first side of the first guide frame. A portion of the structure of the second gasket is connected to the surface of the first guide frame facing the third guide frame, and the remaining portion of the second gasket is connected to the second side of the first guide frame.

[0009] Furthermore, the first connection structure includes a solder structure, a fastener, or a rivet, and / or the second connection structure includes a solder structure, a fastener, or a rivet.

[0010] Furthermore, a spring mounting clearance part is provided in the middle of the side frame body. The side frame structure also includes a third shim structure and a fourth shim structure. The third shim structure and the fourth shim structure are both provided on the side frame body and located in the spring mounting clearance part. The third shim structure and the fourth shim structure are provided correspondingly.

[0011] Furthermore, the spring mounting clearance part includes a clearance hole that penetrates the side frame body along the thickness direction. The side frame structure also includes a spring support and a square frame member. The square frame member covers the spring support, and the clearance hole is located between the square frame member and the spring support. The third shim structure and the fourth shim structure are both provided on the square frame member.

[0012] Furthermore, the third gasket structure is connected to the frame member via the third connecting structure, and / or the fourth gasket structure is connected to the frame member via the fourth connecting structure.

[0013] Furthermore, the side frame structure also includes a fifth gasket structure, which is connected to the side frame body via a fifth connecting structure and is located between the first guide frame and the third guide frame, and / or, the side frame structure also includes a sixth gasket structure, which is connected to the side frame body via a sixth connecting structure and is located between the second guide frame and the fourth guide frame.

[0014] According to a second aspect of the present invention, a bogie is provided, including a side frame structure, wherein the side frame structure is the side frame structure described above.

[0015] According to a third aspect of the present invention, a railway vehicle is provided, including a bogie, wherein the bogie is the bogie described above.

[0016] In this invention, the first guide frame, second guide frame, third guide frame, and fourth guide frame are all mounted on the side frame body. The first and second guide frames are located at both ends of the side frame body, and the third and fourth guide frames are located between the first and second guide frames. A first gasket structure is connected to the first guide frame via a first connecting structure, and a second gasket structure is connected to the third guide frame via a second connecting structure. Through this arrangement, the first and second gasket structures can be ground, ensuring the precision between the first and third guide frames, thereby improving the precision of the side frame structure. Therefore, the technical solution of this application effectively solves the problem of poor precision of the side frame in related technologies. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A perspective structural schematic diagram of an embodiment of the side frame structure according to the present invention is shown;

[0019] Figure 2 It shows Figure 1 A magnified view of part A of the side frame structure;

[0020] Figure 3 It shows Figure 1 A side view of the side frame structure;

[0021] Figure 4 It shows Figure 1 A front view schematic diagram of the third guide frame of the side frame structure.

[0022] The above figures include the following reference numerals:

[0023] 10. Side frame body; 21. First guide frame; 22. Second guide frame; 23. Third guide frame; 24. Fourth guide frame; 30. First gasket structure; 31. First gasket component; 32. Second gasket component; 40. Second gasket structure; 50. Spring mounting clearance part; 51. Clearance hole; 61. Third gasket structure; 62. Fourth gasket structure; 71. Spring support; 72. Square frame component; 81. Fifth gasket structure; 82. Sixth gasket structure. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] like Figure 1 , Figure 3 as well as Figure 4 As shown, in this embodiment, the side frame structure includes: a side frame body 10, a first guide frame 21, a second guide frame 22, a third guide frame 23, a fourth guide frame 24, a first gasket structure 30, and a second gasket structure 40. The first guide frame 21 and the second guide frame 22 are respectively disposed at both ends of the side frame body 10. The third guide frame 23 and the fourth guide frame 24 are both connected to the side frame body 10, and are located between the first guide frame 21 and the second guide frame 22. The first guide frame 21 and the third guide frame 23 are arranged adjacent to each other, and the second guide frame 22 and the fourth guide frame 24 are arranged adjacent to each other. The first gasket structure 30 is connected to the first guide frame 21 through a first connecting structure. The second gasket structure 40 is connected to the third guide frame 23 through a second connecting structure. The first gasket structure 30 and the second gasket structure 40 are arranged correspondingly.

[0028] In this embodiment, the first guide frame 21, the second guide frame 22, the third guide frame 23, and the fourth guide frame 24 are all mounted on the side frame body 10. The first guide frame 21 and the second guide frame 22 are located at both ends of the side frame body 10, and the third guide frame 23 and the fourth guide frame 24 are located between the first guide frame 21 and the second guide frame 22. The first gasket structure 30 is connected to the first guide frame 21 via a first connecting structure, and the second gasket structure 40 is connected to the third guide frame 23 via a second connecting structure. Through this arrangement, the first gasket structure 30 and the second gasket structure 40 can be polished, thus ensuring the accuracy between the first guide frame 21 and the third guide frame 23, thereby improving the accuracy of the side frame structure. Therefore, the technical solution of this embodiment effectively solves the problem of poor accuracy of the side frame in related technologies.

[0029] The technical solution of this embodiment sets adjustable first shim structure 30 and second shim structure 40 at key locations of the side frame structure. Subsequent machining corrects dimensional deviations caused by welding deformation and assembly gaps. The first shim structure 30 and second shim structure 40 can absorb and compensate for deformation during the welding process, ensuring that the final dimensions fall within the specified tolerance range. This effectively improves the dimensional accuracy of the side frame structure, thereby guaranteeing the safety and stability of vehicle operation.

[0030] Specifically, in this embodiment, gaskets are provided on both the second guide frame 22 and the fourth guide frame 24.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the first gasket structure 30 includes a first gasket member 31 and a second gasket member 32, which are spaced apart along the width of the side frame body 10. This arrangement effectively reduces the use of gaskets and ensures accuracy. Furthermore, by providing the first gasket member 31 and the second gasket member 32 on both sides of the first guide frame 21, the thickness adjustment of the first gasket member 31 and the second gasket member 32 on both sides balances welding deformation, ensuring the accuracy of the distance between the first guide frame 21 and the third guide frame 23.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, a portion of the structure of the first shim 31 is connected to the surface of the first guide frame 21 facing the third guide frame 23, and the remaining portion of the first shim 31 is connected to the first side of the first guide frame 21. A portion of the structure of the second shim 32 is connected to the surface of the first guide frame 21 facing the third guide frame 23, and the remaining portion of the second shim 32 is connected to the second side of the first guide frame 21. This arrangement ensures the positional stability of the first shim 31 and the second shim 32. Furthermore, by connecting a portion of the structure of the first shim 31 and the second shim 32 to the surface of the first guide frame 21, and the remaining portion to the side of the first guide frame 21, a stable support structure can be formed. Simultaneously, it facilitates the adjustment of the shim thickness through machining to compensate for welding deformation. This improves the stability and adjustment accuracy of the first shim structure 30, ensures the accuracy of the key dimensions of the side frame structure, and enhances the vehicle's operating performance and safety.

[0033] like Figures 1 to 3 As shown, in this embodiment, the first connection structure includes a solder structure, a fastener, or a rivet, and the second connection structure includes a solder structure, a fastener, or a rivet. This configuration improves the connection stability between the first gasket structure 30 and the second gasket structure 40.

[0034] Specifically, the first gasket structure 30 and the second gasket structure 40 are securely fixed to the first guide frame 21 facing the third guide frame 23 using welding, fasteners, or rivets. These connection methods also facilitate subsequent machining and adjustment. This ensures the stability of the gasket structure during assembly, simplifies the gasket adjustment process, and improves production efficiency.

[0035] like Figure 1 and Figure 3 As shown, in this embodiment, a spring mounting clearance portion 50 is provided in the middle of the side frame body 10. The side frame structure also includes a third shim structure 61 and a fourth shim structure 62. Both the third shim structure 61 and the fourth shim structure 62 are disposed on the side frame body 10 and located within the spring mounting clearance portion 50, with the third shim structure 61 and the fourth shim structure 62 being correspondingly disposed. By providing the third shim structure 61 and the fourth shim structure 62 in the spring mounting clearance portion 50, the dimensional deviation of the spring mounting clearance portion 50 caused by welding deformation can be effectively compensated, ensuring the spring damping performance and vehicle dynamic performance. This further improves the accuracy of the spring mounting position, ensuring the stability and comfort of the vehicle during operation.

[0036] like Figure 1 and Figure 3 As shown, in this embodiment, the spring mounting clearance part 50 includes a clearance hole 51, which penetrates the side frame body 10 along its thickness direction. The side frame structure also includes a spring support 71 and a square frame member 72. The square frame member 72 covers the spring support 71, and the clearance hole 51 is located between the square frame member 72 and the spring support 71. The third gasket structure 61 and the fourth gasket structure 62 are both disposed on the square frame member 72. The clearance hole 51 provides space for the third gasket structure 61 and the fourth gasket structure 62 between the spring support 71 and the square frame member 72, facilitating the adjustment of the thickness of the third gasket structure 61 and the fourth gasket structure 62 to compensate for welding deformation.

[0037] like Figure 1 and Figure 3 As shown, in this embodiment, the third gasket structure 61 is connected to the frame member 72 via a third connecting structure, and / or the fourth gasket structure 62 is connected to the frame member 72 via a fourth connecting structure. The third and fourth connecting structures securely fix the third gasket structure 61 and the fourth gasket structure 62 to the frame member 72, and these connection methods also facilitate subsequent machining adjustments. This ensures the stability of the third gasket structure 61 and the fourth gasket structure 62 during assembly, simplifies the adjustment process of the third gasket structure 61 and the fourth gasket structure 62, and improves production efficiency.

[0038] like Figure 1 and Figure 3As shown, in this embodiment, the side frame structure further includes a fifth gasket structure 81, which is connected to the side frame body 10 via a fifth connecting structure and is located between the first guide frame 21 and the third guide frame 23. The side frame structure also includes a sixth gasket structure 82, which is connected to the side frame body 10 via a sixth connecting structure and is located between the second guide frame 22 and the fourth guide frame 24. The fifth gasket structure 81 and the sixth gasket structure 82 can effectively compensate for dimensional deviations between the side frame body 10 and the spring support 71 caused by welding deformation.

[0039] Specifically, the distance D1 from the spring support 71 surface to the top surface of the guide frame has a tolerance of -3mm to +2mm. Excessive deviation in this tolerance will affect the distance from the bogie's center plate surface to the rail surface, thus affecting the vehicle's coupler height and coupling. To eliminate the effects of assembly deviations and welding deformation of the welded side frame, a fifth shim structure 81 and a sixth shim structure 82 are installed on the bottom surface of the side frame structure. After the side frame structure is assembled, the fifth shim structure 81 and the sixth shim structure 82 are machined to ensure the accuracy of this critical dimension. The square frame component 72 is a U-shaped folding plate with circumferential welding. Welding deformation is difficult to control, and if the dimensional accuracy here exceeds the tolerance, it will affect the spring damping and thus the vehicle's dynamic performance. The tolerance of the square frame component 72 dimension D2 is generally -1mm to +3mm. To ensure this accuracy, a third shim structure 61 and a fourth shim structure 62 are installed on the left and right sides of the square frame component 72. After the assembly of all components of the side frame structure, the third shim structure 61 and the fourth shim structure 62 are machined to ensure accuracy. The positions between the first guide frame 21 and the third guide frame 23, as well as between the second guide frame 22 and the fourth guide frame 24, are critical dimensional surfaces for mating with the load-bearing saddle. Dimensional deviations at these points can affect the vehicle's curve-passing performance and its critical speed for high-speed straight-line slalom. The distance D3 between the first guide frame 21 and the third guide frame 23 has a tolerance range of 0mm to +1mm, and the lateral distance tolerance ranges from -1mm to +1mm. To ensure the longitudinal and lateral dimensional accuracy between the first guide frame 21 and the third guide frame 23, a first shim structure 30 and a second shim structure 40 are respectively installed between them. After the side frame assembly is completed, the first shim structure 30 and the second shim structure 40 are machined to ensure the required accuracy.

[0040] The distance tolerance between the second guide frame 22 and the fourth guide frame 24 is 0mm to +1mm, and the lateral distance D4 tolerance is -1mm to +1mm.

[0041] According to a second aspect of this application, a bogie is provided. The bogie of this embodiment includes a side frame structure, which is the side frame structure described above. The aforementioned side frame structure ensures accuracy, thereby ensuring vehicle dynamic performance. Therefore, the bogie with the aforementioned side frame structure also possesses the aforementioned advantages.

[0042] According to a third aspect of this application, a railway vehicle is provided, including a bogie, wherein the bogie is the aforementioned bogie. The aforementioned bogie ensures accuracy, thereby ensuring the vehicle's dynamic performance. Therefore, the railway vehicle having the aforementioned bogie also possesses the aforementioned advantages.

[0043] In the description of this utility model, it should be understood that "multiple" means a quantity of two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A side frame structure, characterized by, include: Side frame body (10); The first guide frame (21) and the second guide frame (22) are respectively disposed at both ends of the side frame body (10); The third guide frame (23) and the fourth guide frame (24) are both connected to the side frame body (10). The third guide frame (23) and the fourth guide frame (24) are located between the first guide frame (21) and the second guide frame (22). The first guide frame (21) and the third guide frame (23) are arranged adjacent to each other, and the second guide frame (22) and the fourth guide frame (24) are arranged adjacent to each other. The first gasket structure (30) is connected to the first guide frame (21) through the first connecting structure; The second gasket structure (40) is connected to the third guide frame (23) via the second connecting structure; The first gasket structure (30) and the second gasket structure (40) are respectively provided.

2. The side frame structure according to claim 1, characterized in that The first gasket structure (30) includes a first gasket member (31) and a second gasket member (32), which are spaced apart in the width direction of the side frame body (10).

3. The side frame structure according to claim 2, characterized in that, A portion of the structure of the first gasket (31) is connected to the surface of the first guide frame (21) facing the third guide frame (23), and the remaining portion of the first gasket (31) is connected to the first side of the first guide frame (21). A portion of the structure of the second gasket (32) is connected to the surface of the first guide frame (21) facing the third guide frame (23), and the remaining portion of the second gasket (32) is connected to the second side of the first guide frame (21).

4. The side frame structure according to claim 1, characterized in that, The first connection structure includes a solder structure, a fastener, or a rivet, and / or the second connection structure includes a solder structure, a fastener, or a rivet.

5. The side frame structure according to claim 1, characterized in that, The side frame body (10) is provided with a spring mounting clearance part (50) in the middle. The side frame structure also includes a third shim structure (61) and a fourth shim structure (62). The third shim structure (61) and the fourth shim structure (62) are both provided on the side frame body (10) and located in the spring mounting clearance part (50). The third shim structure (61) and the fourth shim structure (62) are provided correspondingly.

6. The side frame structure according to claim 5, characterized in that The spring mounting clearance part (50) includes a clearance hole (51), which penetrates the side frame body (10) along the thickness direction. The side frame structure also includes a spring support (71) and a square frame (72). The square frame (72) covers the spring support (71). The clearance hole (51) is located between the square frame (72) and the spring support (71). The third gasket structure (61) and the fourth gasket structure (62) are both provided on the square frame (72).

7. The side frame structure according to claim 6, characterized in that The third gasket structure (61) is connected to the frame member (72) via a third connecting structure, and / or the fourth gasket structure (62) is connected to the frame member (72) via a fourth connecting structure.

8. The side frame structure according to claim 1, characterized in that, The side frame structure further includes a fifth gasket structure (81), which is connected to the side frame body (10) through a fifth connecting structure and is located between the first guide frame (21) and the third guide frame (23). Alternatively, the side frame structure further includes a sixth gasket structure (82), which is connected to the side frame body (10) through a sixth connecting structure and is located between the second guide frame (22) and the fourth guide frame (24).

9. A bogie comprising a side frame structure, characterized in that The side frame structure is the side frame structure according to any one of claims 1 to 8.

10. A railway vehicle comprising a bogie, characterized in that The bogie is the bogie as described in claim 9.

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