Wedge groove structure and swing bolster with same

Abstract

The utility model provides an inclined wedge groove structure and a swing bolster with the inclined wedge groove structure, and the inclined wedge groove structure comprises a bottom supporting seat component which is provided with an accommodating space for accommodating an inclined wedge; the stop seat component is arranged above the bottom supporting seat component; and the extension component is connected with the bottom supporting seat component and the stop seat component. According to the technical scheme, the problem that the cost is high when a wedge groove structure is machined through a casting technology in the related technology is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of rocker head technology, and more specifically, to a wedge groove structure and a rocker head having the same. Background Technology

[0002] The bolster is a crucial component of railway freight car bogies. Located at the center of the bogie, its primary function is to transfer the car body's load and lateral forces to the side frames, while also guiding the wheelsets to run smoothly along the track. Bolsters are typically designed with sufficient strength and rigidity to withstand various impacts and vibrations during vehicle operation, ensuring the vehicle's stability and safety. The wedge groove is a vital structural feature of the bolster; its main function is to accommodate and position the wedge, achieving vertical vibration reduction, lateral positioning, and load distribution between the wheel and rail.

[0003] In existing technologies, the bolsters of railway freight car bogies are generally manufactured using casting processes, during which the wedge grooves are formed. Casting is suitable for producing components with complex shapes and high mechanical performance requirements. To ensure the mechanical properties and geometric accuracy of the bolster, the design and manufacture of the casting molds are crucial. The precision of the molds directly affects the dimensions and quality of the finished product, leading to high processing costs in casting the bolster and forming the wedge grooves. Utility Model Content

[0004] The main purpose of this utility model is to provide a wedge groove structure and a bolster having the same, so as to solve the problem that the cost of using casting process to process the wedge groove structure in related technologies is high.

[0005] To achieve the above objectives, according to one aspect of the present invention, a wedge groove structure is provided, comprising: a bottom support member having a receiving space provided on the bottom support member for accommodating a wedge; a stop member disposed above the bottom support member; and an extension member connecting the bottom support member and the stop member.

[0006] Furthermore, the bottom support component includes a first upright plate, a second upright plate, and a first connecting plate connecting the first upright plate and the second upright plate, with the first upright plate, the second upright plate, and the first connecting plate forming an accommodating space.

[0007] Furthermore, both the stop seat component and the first connecting plate are connected to the extension component.

[0008] Furthermore, the stop seat member and the first connecting plate are disposed on the same side of the extension member.

[0009] Furthermore, the angle between the plane of the first connecting plate and the bottom surface of the bottom support member is greater than or equal to 30° and less than or equal to 80°.

[0010] Furthermore, the extensional member includes an extensional plate disposed on the inner wall of the receiving space.

[0011] Furthermore, there is a preset distance between the bottom of the stop seat member and the top of the bottom support seat member.

[0012] Furthermore, the stop seat component includes a support plate, which is connected to the bolster body, and the end of the support plate is connected to the extension component.

[0013] Furthermore, the stop seat component also includes a second connecting plate, which is connected to the end of the support plate. The support plate is connected to the extension component through the second connecting plate, and there is a preset angle between the extension direction of the support plate and the extension direction of the second connecting plate.

[0014] According to another aspect of the present invention, a rocking pillow is provided, comprising: a rocking pillow body and a wedge groove structure disposed on the rocking pillow body, wherein the wedge groove structure is the aforementioned wedge groove structure.

[0015] The present invention provides a wedge groove structure comprising a bottom support member, a stop member, and an extension member. The bottom support member has a receiving space for accommodating the wedge. The stop member is positioned above the bottom support member. The extension member connects the bottom support member and the stop member. By processing the bottom support member, the stop member, and the extension member separately, and then connecting them, a wedge groove structure is formed. This avoids the high cost associated with casting wedge groove structures compared to casting. Therefore, the present invention effectively solves the problem of high cost associated with casting wedge groove structures in related technologies. Attached Figure Description

[0016] 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:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the inclined wedge groove structure according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the bottom support component of the inclined wedge groove structure;

[0019] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the stop seat component with a wedge groove structure;

[0020] Figure 4 A three-dimensional structural schematic diagram of the rocking pillow according to the present invention is shown;

[0021] Figure 5 It shows Figure 4 A front view diagram of the rocking pillow;

[0022] Figure 6 It shows Figure 5 A cross-sectional view of the bolster at point AA.

[0023] The above figures include the following reference numerals:

[0024] 10. Bottom support component; 11. Accommodation space; 12. First upright plate; 13. Second upright plate; 14. First connecting plate; 20. Stop component; 21. Support plate; 22. Second connecting plate; 30. Extension component; 31. Extension plate; 100. Pillar body; 101. Upper cover plate; 1011. Upper cover plate inclined wedge groove opening; 102. Lower cover plate; 1021. Lower cover plate inclined wedge groove opening; 103. Middle connection structure. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] like Figure 1 As shown, the wedge groove structure of this embodiment includes: a bottom support member 10, a stop member 20, and an extension member 30. The bottom support member 10 is provided with a receiving space 11 for accommodating the wedge. The stop member 20 is disposed above the bottom support member 10. The extension member 30 connects the bottom support member 10 and the stop member 20.

[0029] The wedge groove structure, according to the technical solution of this embodiment, includes a bottom support member 10, a stop member 20, and an extension member 30. The bottom support member 10 has a receiving space 11 for accommodating the wedge. The stop member 20 is positioned above the bottom support member 10. The extension member 30 connects the bottom support member 10 and the stop member 20. By processing the bottom support member 10, the stop member 20, and the extension member 30 separately, and then connecting them, a wedge groove structure is formed. This avoids the high cost associated with casting wedge groove structures compared to casting. Therefore, the technical solution of this embodiment effectively solves the problem of high cost associated with casting wedge groove structures in related technologies.

[0030] The wedge groove structure also includes a first connecting structure and a second connecting structure. The first connecting structure connects the bottom support member 10 and the extension member 30. The second connecting structure connects the extension member 30 and the stop member 20.

[0031] The bottom support member 10 and the extension member 30 are connected by welding, and the first connection structure is formed during welding. The stop member 20 and the extension member 30 are connected by welding, and the second connection structure is formed during welding.

[0032] Of course, in other embodiments, the bottom support member 10 and the outer extension member 30 can be connected by processes such as screwing or riveting. The stop member 20 and the outer extension member 30 can be connected by processes such as screwing or riveting.

[0033] The term "component" in the bottom support component 10, the stop component 20, and the extension component 30 refers to the fact that the bottom support component 10, the stop component 20, and the extension component 30 are independent of each other and are processed separately.

[0034] like Figure 1 , Figure 2 as well as Figure 6 As shown, in this embodiment, the bottom support member 10 includes a first upright plate 12, a second upright plate 13, and a first connecting plate 14 connecting the first upright plate 12 and the second upright plate 13. The first upright plate 12, the second upright plate 13, and the first connecting plate 14 form an accommodating space 11. By setting the first upright plate 12, the second upright plate 13, and the first connecting plate 14, the accommodating space 11 can be formed, which facilitates the accommodation of the wedge and also improves the structural strength of the bottom support member 10.

[0035] The bottom support component 10 is a wedge-shaped groove plate, and the first vertical plate 12, the first connecting plate 14, and the second vertical plate 13 form a U-shaped structure. The bottom support component 10 is a "U"-shaped folding structure, which is set between the upper cover plate 101 and the lower cover plate 102 of the bolster body 100. The bottom support component 10 is provided with a beveled circumferential weld to facilitate welding of the bottom support component 10 to both the upper cover plate 101 and the lower cover plate 102 of the bolster body 100, thereby ensuring the welding strength between the bottom support component 10 and the bolster body 100.

[0036] like Figure 1 , Figure 5 as well as Figure 6 As shown, in this embodiment, both the stop seat member 20 and the first connecting plate 14 are connected to the extension member 30. This arrangement not only enables the extension member 30 to connect the stop seat member 20 to the first connecting plate 14, making the relative position between the stop seat member 20 and the first connecting plate 14 more stable, but also allows the extension member 30 to be located between the first upright plate 12 and the second upright plate 13, facilitating the arrangement of the wedge.

[0037] like Figure 1 As shown, in this embodiment, the stop seat member 20 and the first connecting plate 14 are disposed on the same side of the extension member 30. With the above arrangement, the stop seat member 20 and the first connecting plate 14 are located on the same side of the extension member 30, which facilitates the connection of the stop seat member 20 to the bolster body 100 and also facilitates the arrangement of the wedge on the other side of the extension member 30, that is, the wedge and the stop seat member 20 are respectively located on opposite sides of the extension member 30.

[0038] like Figure 1 , Figure 2 as well as Figure 6 As shown, in this embodiment, the angle between the plane of the first connecting plate 14 and the bottom surface of the bottom support member 10 is greater than or equal to 30° and less than or equal to 80°. This makes the angle between the plane of the first connecting plate 14 and the bottom surface of the bottom support member 10 more reasonable, thereby giving the bottom support member 10 a better load-bearing effect and ensuring the vehicle's dynamic performance.

[0039] like Figure 6 As shown, the angle between the plane where the first connecting plate 14 is located and the bottom surface of the bottom support member 10 is α, which can be 30°, 40°, 50°, 60°, 70° or 80°.

[0040] Preferably, the angle between the plane of the first connecting plate 14 and the bottom surface of the bottom support member 10 is greater than or equal to 40° and less than or equal to 70°.

[0041] like Figure 1 and Figure 6 As shown, in this embodiment, the extension member 30 includes an extension plate 31, which is disposed on the inner wall of the accommodating space 11. By providing the extension plate 31, the bottom support member 10 and the stop member 20 can be connected.

[0042] The outer plate 31 is a sloping wear plate. Since the inner surface of the bottom support component 10 is a mating friction surface, the outer plate 31 is provided to facilitate the use, maintenance and replacement of the outer plate 31 after it wears out.

[0043] like Figure 1 and Figure 6 As shown, in this embodiment, there is a preset distance between the bottom of the stop seat member 20 and the top of the bottom support seat member 10. With the above-described arrangement, a portion of the structure of the bolster body 100 can be inserted between the bottom of the stop seat member 20 and the top of the bottom support seat member 10, facilitating the connection between the wedge groove structure and the bolster body 100.

[0044] It should be noted that the preset distance is equal to the thickness of the upper cover plate 101.

[0045] like Figure 1 , Figure 3 as well as Figure 6 As shown, in this embodiment, the stop seat component 20 includes a support plate 21, which is connected to the bolster body 100. The end of the support plate 21 is connected to the extension component 30. The support plate 21 is connected between the extension component 30 and the bolster body 100, making the relative position of the extension component 30 and the bolster body 100 more stable.

[0046] like Figure 1 , Figure 3 , Figure 4 as well as Figure 6 As shown, in this embodiment, the stop seat component 20 further includes a second connecting plate 22, which is connected to the end of the support plate 21. The support plate 21 is connected to the extension component 30 through the second connecting plate 22, and a preset angle exists between the extension direction of the support plate 21 and the extension direction of the second connecting plate 22. The second connecting plate 22 can connect the support plate 21 and the extension component 30. The preset angle between the extension direction of the support plate 21 and the extension direction of the second connecting plate 22 improves the structural strength of the stop seat component 20, thereby making the connection between the extension component 30 and the bolster body 100 more stable, and thus making the relative position between the extension component 30 and the bolster body 100 more stable.

[0047] The stop seat component 20 is composed of a wedge groove stop. The stop seat component 20 is a welded T-shaped plate component, and the second connecting plate 22 is arranged parallel to the extension component 30.

[0048] The preset included angle is between 60° and 130°, and can be 60°, 80°, 90°, 120°, or 130°. In this embodiment, the preset included angle is 90°.

[0049] In other embodiments, the stop seat component 20 includes only a second connecting plate, which is connected to the first connecting plate and is integrally formed with the first connecting plate. The top of the second connecting plate is higher than the top of the upper cover plate of the bolster body 100.

[0050] The wedge groove structure in this embodiment is a welded three-piece bogie bolster wedge groove structure. The bolster is an important component of the welded three-piece bogie, connecting the left and right side frames together and transferring the load of the car body to the side frames, which in turn transfer it to the track through the side frame wheel axle system. The wedge groove structure can provide sufficient damping force for the spring damping device to provide appropriate damping.

[0051] The inclined wedge groove structure of this embodiment adopts a technical solution of first machining the bottom support seat component 10, the stop seat component 20, and the extension component 30 separately, and then connecting the bottom support seat component 10, the stop seat component 20, and the extension component 30. Compared with the prior art of using casting process to machine the rocker bolster, it has the following advantages:

[0052] 1. It avoids the problems of generating a large amount of waste gas and slag during the molten metal process and the wastewater and slag generated during the casting molding or core making process in the bolster casting production process.

[0053] 2. The inclined wedge groove structure of this embodiment can reduce carbon emissions by about 30% to 50%, which means that carbon emissions are reduced and the environment is more green and environmentally friendly.

[0054] 3. This avoids the problem of high mold costs associated with forming the wedge groove structure during the casting of the rocker arm. In other words, the wedge groove structure in this embodiment can reduce production costs.

[0055] 4. It avoids the casting defects such as porosity, shrinkage cavities, inclusions, and hot cracks that are prone to occur in the casting of the rocker arm during the process of forming the inclined wedge groove structure, which would lead to a decrease in product quality and reliability. In other words, the inclined wedge groove structure of this embodiment can improve the manufacturing quality and reliability of the product, save on later maintenance costs, and avoid casting defects such as porosity and inclusions.

[0056] 5. This invention avoids the problems of excessive weight, high energy consumption, and poor economy caused by the difficulty in achieving lightweight design when using casting process to process the bolster. The inclined wedge groove structure in this embodiment can achieve lightweight design, reduce the weight of the whole vehicle, and reduce transportation energy consumption.

[0057] 6. The rocker bolster manufactured using casting technology is a one-piece, non-separable structure, which is inconvenient to manufacture and maintain. If the rocker bolster is partially worn or damaged, the entire rocker bolster will be scrapped. In contrast, the inclined wedge groove structure of this embodiment is a separable structure, which is convenient for maintenance and repair. If partial structural cracks occur, they can be repaired and replaced.

[0058] 7. It features simple structure, stable performance, and high reliability.

[0059] like Figures 4 to 6 As shown, the rocking bolster of this embodiment includes: a rocking bolster body 100 and a wedge groove structure disposed on the rocking bolster body 100, wherein the wedge groove structure is the wedge groove structure described above.

[0060] The bolster also includes a third connecting structure and a fourth connecting structure. The third connecting structure connects the bottom support member 10 and the bolster body 100, and the fourth connecting structure connects the stop member 20 and the bolster body 100.

[0061] The bolster body 100 includes an upper cover plate 101, a lower cover plate 102, and a central connecting structure 103 connecting the upper cover plate 101 and the lower cover plate 102. The upper cover plate 101 is provided with an upper cover plate inclined wedge groove opening 1011, and the lower cover plate 102 is provided with a lower cover plate inclined wedge groove opening 1021.

[0062] The bottom of the upper cover plate 101 is connected to the top of the bottom support member 10, that is, the third connection structure is connected between the bottom of the upper cover plate 101 and the top of the bottom support member 10. The inner surface of the upper cover plate inclined wedge groove opening 1011 is flush with the inner surface of the receiving space 11.

[0063] The top of the lower cover plate 102 is connected to the bottom of the bottom support member 10, that is, the fourth connection structure is connected between the top of the lower cover plate 102 and the bottom of the bottom support member 10. The inner surface of the inclined wedge groove opening 1021 of the lower cover plate is flush with the inner surface of the receiving space 11.

[0064] Between the bottom of the stop seat member 20 and the top of the bottom support seat member 10, there is a partial structure of the upper cover plate 101.

[0065] Both the bottom support component 10 and the stop component 20 are welded to the bolster body 100, meaning that the third and fourth connection structures are formed during welding.

[0066] Four inclined wedge groove structures are provided on the bolster body 100. Correspondingly, there are four inclined wedge groove openings 1011 on the upper cover plate, four inclined wedge groove openings 1021 on the lower cover plate, four third connecting structures, and four fourth connecting structures. The four inclined wedge groove structures are spaced apart, with two spaced apart on the first side of the width direction of the bolster body and the other two spaced apart on the second side of the width direction of the bolster body. Multiple upper cover plate inclined wedge groove openings 1011, multiple lower cover plate inclined wedge groove openings 1021, and multiple receiving spaces 11 are arranged in a one-to-one correspondence. In the thickness direction of the upper cover plate 101, the receiving space 11 is located between the upper cover plate inclined wedge groove opening 1011 corresponding to the receiving space 11 and the lower cover plate inclined wedge groove opening 1021 corresponding to the receiving space 11.

[0067] The central connecting structure 103 includes a first connecting component and a second connecting component. The first connecting component includes a first support plate, a second support plate, and a third support plate, which are arranged sequentially at intervals along the length of the bottom support member 10.

[0068] The length direction of the bottom support component 10 is from the first upright plate 12 to the second upright plate 13.

[0069] Two wedge-shaped groove structures are spaced apart on the first side of the bolster body 100 in the width direction. One wedge-shaped groove connects the first support plate and the second support plate, and the other connects the second support plate and the third support plate. In the wedge-shaped groove structure connecting the first and second support plates, the first upright plate 12 is connected to the first support plate, and the second upright plate 13 is connected to the second support plate. In the wedge-shaped groove structure connecting the second and third support plates, the first upright plate 12 is connected to the first support plate, and the second upright plate 13 is connected to the second support plate. The two wedge-shaped groove structures spaced apart on the first side of the bolster body in the width direction are a first wedge-shaped groove structure and a second wedge-shaped groove structure, respectively. The two wedge-shaped groove structures spaced apart on the second side of the bolster body in the width direction are a third wedge-shaped groove structure and a fourth wedge-shaped groove structure, respectively.

[0070] The first and third wedge groove structures are symmetrically arranged about the width of the bolster body 100. The second and fourth wedge groove structures are symmetrically arranged about the width of the bolster body 100. The second connecting assembly has the same structure as the first connecting assembly and is symmetrically arranged about the width of the bolster body 100. The first and second wedge groove structures are symmetrically arranged about the length of the bolster body 100. The third and fourth wedge groove structures are symmetrically arranged about the length of the bolster body 100.

[0071] In the description of this utility model, it should be understood that "multiple" means 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.

[0072] 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.

[0073] 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.

[0074] 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 wedge slot structure, characterized by, include: Bottom support member (10), the bottom support member (10) is provided with a receiving space (11) for accommodating the wedge; A stop seat member (20) is disposed above the bottom support seat member (10); An extension member (30) connects the bottom support member (10) and the stop member (20).

2. The wedge channel structure of claim 1, wherein The bottom support component (10) includes a first upright plate (12), a second upright plate (13), and a first connecting plate (14) connecting the first upright plate (12) and the second upright plate (13). The first upright plate (12), the second upright plate (13), and the first connecting plate (14) form the receiving space (11).

3. The wedge channel structure of claim 2, wherein, Both the stop seat component (20) and the first connecting plate (14) are connected to the extension component (30).

4. The wedge channel structure of claim 2, wherein The stop seat member (20) and the first connecting plate (14) are disposed on the same side of the extension member (30).

5. The wedge channel structure of claim 2, wherein The angle between the plane of the first connecting plate (14) and the bottom surface of the bottom support member (10) is greater than or equal to 30° and less than or equal to 80°.

6. The wedge channel structure according to any one of claims 1 to 5, characterized in that The extension member (30) includes an extension plate (31) disposed on the inner wall of the receiving space (11).

7. The wedge channel structure according to any one of claims 1 to 5, characterized in that There is a predetermined distance between the bottom of the stop seat member (20) and the top of the bottom support seat member (10).

8. The wedge channel structure according to any one of claims 1 to 5, characterized in that The stop seat component (20) includes a support plate (21), which is connected to the bolster body (100), and the end of the support plate (21) is connected to the extension component (30).

9. The wedge channel structure of claim 8, wherein, The stop seat component (20) further includes a second connecting plate (22), which is connected to the end of the support plate (21). The support plate (21) is connected to the extension component (30) through the second connecting plate (22). There is a preset angle between the extension direction of the support plate (21) and the extension direction of the second connecting plate (22).

10. A bolster characterized by, include: The rocking bolster body (100) and the inclined wedge groove structure disposed on the rocking bolster body (100), wherein the inclined wedge groove structure is the inclined wedge groove structure according to any one of claims 1 to 9.

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