Load-bearing saddle and bogie

Abstract

This utility model discloses a load-bearing saddle and bogie. The load-bearing saddle includes a load-bearing saddle body, a rubber pad mounting seat, and a U-shaped frame mounting seat. The rubber pad mounting seat includes a flat portion, a side portion A, a side portion B, a protrusion, and a dovetail tenon. The flat portion has a planar structure, and the side portions A and B are respectively perpendicularly disposed on both sides of the flat portion, forming a first groove structure. This first groove structure is configured for the top of the load-bearing saddle body to be inserted. One end of the protrusion is connected to side portion A; one end of the dovetail tenon is connected to side portion B; the upper surfaces of the protrusion and the dovetail tenon are coplanar with the upper surface of the flat portion. The U-shaped frame mounting seat is connected to side portion B and the dovetail tenon, and has a U-shaped frame mounting hole. The structure of this load-bearing saddle facilitates connection with the U-shaped frame.

Description

Technical Field

[0001] This utility model relates to a load-bearing saddle and bogie. Background Technology

[0002] The load-bearing saddle is a key component of railway vehicle bogies. It is installed between the axle box-less double-row tapered roller bearing and the bogie side frame guide frame, and bears the function of transmitting longitudinal and lateral loads.

[0003] A document reports a railway casting load-bearing saddle, including a second saddle body, with a first saddle body disposed on one side of the second saddle body. Transverse inserts are inserted into the sides of both the first and second saddle bodies that are far apart from each other. After assembling the load-bearing saddle by setting up protective components, a clamping rod is moved towards the first fixed plate. The movement of the clamping rod causes a threaded post to move. After the threaded post passes through the through hole, a nut is rotated and screwed onto the outer wall of the threaded post, making it fit against the side wall of the first fixed plate. This limits and fixes the clamping rod between the first and second fixed plates. Under the action of the clamping rod, the limiting rod can be limited and fixed, preventing the limiting rod from moving under external force, thus affecting the limiting effect of the limiting rod on the transverse insert, and consequently affecting the stability of the connection between the connecting plate and the first and second saddle bodies.

[0004] Another document reports a bogie support saddle structure for rail transit, including a support saddle body, a positioning stop on the support saddle body, an air hole on the top of the support saddle body, a first ventilation channel inside the support saddle body, a second ventilation channel inside the support saddle body in contact with the first ventilation channel, a thin rubber layer on the outside of the positioning stop, a first strong magnet inside the positioning stop, and a second strong magnet inside the positioning stop.

[0005] The above-mentioned load-bearing saddle structure does not mention the connection with the U-shaped frame, and in particular, the above-mentioned load-bearing saddle structure cannot achieve the connection between the edge of the load-bearing saddle and the U-shaped frame. Utility Model Content

[0006] In view of this, one objective of this utility model is to provide a load-bearing saddle whose structure facilitates connection with a U-shaped frame, facilitates assembly and disassembly with the U-shaped frame, and further improves the connection strength between the saddle and the U-shaped frame.

[0007] Another objective of this invention is to provide a bogie.

[0008] The present invention achieves the above objectives by adopting the following technical solution.

[0009] On the one hand, this utility model provides a load-bearing saddle, comprising:

[0010] The supporting saddle body has an arc-shaped inner surface and a flat top structure.

[0011] A rubber pad mounting base includes a flat portion, a side portion A, a side portion B, a protrusion, and a dovetail tenon. The flat portion has a planar structure, and the side portions A and B are respectively perpendicularly disposed on both sides of the flat portion, forming a first groove structure. This first groove structure is configured for the top of the supporting saddle body to be inserted into. One end of the protrusion is connected to the side portion A, and one end of the dovetail tenon is connected to the side portion B.

[0012] The upper surface of the protrusion, the upper surface of the dovetail tenon, and the upper surface of the flat part are coplanar;

[0013] The U-shaped frame mounting base connects to side part B and the dovetail tenon, and has U-shaped frame mounting holes. In use, the upper surface of the U-shaped frame mounting base is lower than the upper surface of the dovetail tenon, forming a second groove structure between the U-shaped frame mounting base and side part B. This type of load-bearing saddle improves the strength of the connection with the U-shaped frame, facilitates assembly, and provides ample operating space.

[0014] In this invention, the U-shaped frame is a U-shaped frame for railway vehicles. The U-shaped frame for railway vehicles is a common key component in railway vehicle bogie systems. However, in the prior art, the assembly of the load-bearing saddle structure with the U-shaped frame is not conducive to the length of the bogie assembly, i.e., space is limited and assembly is difficult.

[0015] The rubber pad mounting base of this utility model facilitates a tight fit between the rubber pad and the axle box, and better prevents the axle box rubber pad from slipping off.

[0016] In this utility model, the extension direction of the protrusion and the dovetail tenon is the same as the length direction of the planar part, that is, perpendicular to the length direction of the U-shaped frame mounting base.

[0017] According to one embodiment of the present invention, one end of the protrusion is connected to the middle of the side portion A; a T-shaped structure is formed between the protrusion and the side portion A. One end of the dovetail tenon is connected to the middle of the side portion B; a T-shaped structure is formed between the dovetail tenon and the side portion B.

[0018] The thickness at both ends of the U-shaped frame mounting base is greater than the thickness of the flat part.

[0019] According to the load-bearing saddle of this utility model, preferably, the U-shaped frame mounting holes are provided as two, respectively located at both ends of the U-shaped frame mounting base. This allows the load-bearing saddle to be connected to the U-shaped frame via the U-shaped frame mounting holes and bolts.

[0020] According to one embodiment of this utility model, the mounting holes of the U-shaped frame are circular holes.

[0021] According to the load-bearing saddle of this utility model, preferably, the lower surface of the U-shaped frame mounting base has an arc-shaped structure; in use, the arc surface of this arc-shaped structure is located above the arc surface of the inner surface of the load-bearing saddle body. This facilitates operation on the inner surface of the load-bearing saddle body and also helps to reduce the weight of the load-bearing saddle.

[0022] According to the load-bearing saddle described in this utility model, preferably, the two corners of the U-shaped frame mounting base away from the side portion B are rounded. This reduces weight, improves safety, and prevents scratches.

[0023] According to the bearing saddle of this utility model, preferably, a trapezoidal platform-shaped protrusion is provided on the side portion B; in the use state, the upper surface of the trapezoidal platform-shaped protrusion is configured as a surface that gradually slopes downward from the edge of the flat portion; there is a gap between the trapezoidal platform-shaped protrusion and the dovetail tenon. This facilitates the fixing of the axle box rubber pad.

[0024] A trapezoidal platform-shaped protrusion is also provided on the side portion A. The trapezoidal platform-shaped protrusion described in this utility model is not a trapezoidal platform in the strict sense, but is similar to a trapezoidal platform.

[0025] According to the load-bearing saddle of this utility model, preferably, the end of the dovetail tenon away from the side portion B is located on the U-shaped frame mounting base. This is beneficial to the structural stability of the load-bearing saddle.

[0026] According to the load-bearing saddle described in this utility model, preferably:

[0027] Multiple square protrusions are provided on the outer surfaces of both ends of the bearing saddle body;

[0028] The outer surfaces at both ends of the bearing saddle body are provided with bearing saddle guide frames, and the length direction of the bearing saddle guide frame forms an obtuse angle with the long side direction of the upper surface of the planar part.

[0029] In use, the load-bearing saddle guide frame is located below the square protrusion.

[0030] In this invention, the square protrusions are for marking the manufacturer, manufacturing date, and materials. The upper surface of the flat portion is rectangular.

[0031] Vertical positioning and guidance can be achieved by using the support saddle guide frame and the side frames on both sides of the bogie to determine the correct position of the wheelset assembly in the bogie.

[0032] According to the present invention, preferably, the bearing saddle has four guide frames, which are evenly distributed on the edges of the outer surfaces at both ends of the bearing saddle body.

[0033] According to the bearing saddle of this utility model, preferably, an arc-shaped groove is provided on the inner surface of the bearing saddle body. Arc-shaped side guards are provided on both sides of the bearing saddle body. The arc-shaped side guards help prevent bearing movement during operation. The arc-shaped groove facilitates bearing installation and also allows for convenient storage of grease, etc.

[0034] On the other hand, the present invention also provides a bogie, which includes the load-bearing saddle as described above.

[0035] The load-bearing saddle of this invention facilitates connection with the U-shaped frame, providing ample operating space and simplifying bogie assembly and maintenance. Furthermore, the stable structure of the load-bearing saddle enhances the connection strength with the U-shaped frame. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the load-bearing saddle of this utility model.

[0037] Figure 2 for Figure 1 Rear view diagram.

[0038] Figure 3 for Figure 1 A diagram showing the view from below.

[0039] The annotations in the attached figures are explained as follows:

[0040] 31-Support saddle body, 311-Square protrusion, 312-Support saddle guide frame, 313-Saddle surface, 314-First arc-shaped groove, 315-Arch-shaped side stop;

[0041] 32-Rubber pad mounting base, 321-Flat surface, 324-Protrusion, 325-Dovetail tenon;

[0042] 33-U-shaped frame mounting base, 331-U-shaped frame mounting hole. Detailed Implementation

[0043] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0044] Example 1

[0045] Figure 1 This is a schematic diagram of the structure of the load-bearing saddle of this utility model. Figure 2 for Figure 1 The rear view diagram (not a strictly rear view, but a view of the load-bearing saddle from an oblique rear). Figure 3 for Figure 1 A diagram showing the load-bearing saddle viewed from below (not a strictly vertical view, but tilted upwards).

[0046] like Figures 1 to 3 As shown, a load-bearing saddle in this embodiment includes a load-bearing saddle body 31, a rubber pad mounting base 32, and a U-shaped frame mounting base 33.

[0047] The inner surface of the supporting saddle body 31 is basically arc-shaped, and its top is planar. The inner surface of the supporting saddle body 31 has two saddle surfaces 313, spaced apart. Arc-shaped grooves are provided on the inner surface of the supporting saddle body 31, including a first arc-shaped groove 314 and a second arc-shaped groove. A first arc-shaped groove 314 is provided between the two saddle surfaces 313, and a second arc-shaped groove is provided on the side of each saddle surface 313 away from the first arc-shaped groove 314. The depth and width of the second arc-shaped groove are less than the depth and width of the first arc-shaped groove 314.

[0048] The supporting saddle body 31 also includes two arc-shaped side blocks 315, which are located on both sides of the supporting saddle body 31. The arc surface of the inner surface of the arc-shaped side blocks 315 is not the same as the arc surface of the saddle surface 313. In use, the arc surface of the inner surface of the arc-shaped side blocks 315 is lower than the arc surface of the saddle surface 313.

[0049] Multiple square protrusions 311 are provided on the outer surfaces of both ends of the bearing saddle body 31. Bearing saddle guide frames 312 are provided on the outer surfaces of both ends of the bearing saddle body 31, with the length direction of the bearing saddle guide frame 312 forming an obtuse angle with the length direction of the upper surface of the planar portion 321. In use, the bearing saddle guide frames 312 are located below the square protrusions 311. Four bearing saddle guide frames 312 are provided, evenly distributed along the edges of the outer surfaces of both ends of the bearing saddle body 31.

[0050] Four square protrusions 311 are evenly arranged on the outer surface of one end of the bearing saddle body 31, and two square protrusions 311 are evenly arranged on the outer surface of the other end.

[0051] The rubber pad mounting base 32 includes a flat portion 321, a side portion A, a side portion B, a protrusion 324, and a dovetail portion 325. The flat portion 321 has a planar structure, and the side portions A and B are respectively vertically disposed on both sides of the flat portion 321, forming a first groove structure. The top of the bearing saddle body 31 is embedded in this first groove structure. One end of the protrusion 324 is connected to the middle of the side portion A; one end of the dovetail portion 325 is connected to the middle of the side portion B; the upper surfaces of the protrusion 324 and the dovetail portion 325 are coplanar with the upper surface of the flat portion 321.

[0052] The U-shaped frame mounting base 33 is connected to the side part B and the dovetail tenon part 325, and is provided with U-shaped frame mounting holes 331. There are two U-shaped frame mounting holes 331, located at both ends of the U-shaped frame mounting base 33.

[0053] In use, the plane containing the upper surface of the U-shaped frame mounting base 33 is lower than the plane containing the upper surface of the dovetail tenon 325, forming a second groove structure between the U-shaped frame mounting base 33 and the side portion B. For example... Figure 1 As shown, there are two second groove structures, separated by a dovetail tenon 325. One second groove structure has an upper opening and a front opening; the other second groove structure has an upper opening and a rear opening.

[0054] The lower surface of the U-shaped frame mounting base 33 has an arc-shaped structure; in use, the arc surface of this arc structure is located above the arc surface of the inner surface of the bearing saddle body 31. The two corners of the U-shaped frame mounting base 33 away from the side portion B are rounded.

[0055] Side portion B is provided with a trapezoidal platform-shaped protrusion (not a strictly trapezoidal platform-shaped protrusion, but a similar one); in use, the upper surface of the trapezoidal platform-shaped protrusion is a surface that gradually slopes downward from the edge of the flat portion 321; there is a gap between the trapezoidal platform-shaped protrusion and the dovetail portion 325. Side portion A is also provided with a similar trapezoidal platform-shaped protrusion.

[0056] The end of the dovetail tenon 325 away from the side portion B is located on the U-shaped frame mounting base 33. The upper surface of the dovetail tenon 325 is rectangular. A perpendicular surface is made on the upper surface of the U-shaped frame mounting base 33 with the short side of the rectangle closest to the U-shaped frame mounting base 33 as a reference. This perpendicular surface forms a through hole structure between the upper surface of the U-shaped frame mounting base 33 and the end face of the dovetail tenon 325. The cross-section of the through hole structure is quadrilateral.

[0057] In this embodiment, the rubber pad mounting base 32 and the U-shaped frame mounting base 33 can be integrally molded structures.

[0058] The shape of the rubber pad mounting bracket 32 ​​is more conducive to a close fit with the axle box rubber pad. Specific installation procedures for the axle box rubber pad can be found in those known in the art and will not be elaborated upon here.

[0059] Example 2

[0060] This embodiment provides a bogie that includes the load-bearing saddle described in Embodiment 1.

[0061] Example 3

[0062] This embodiment provides a railway vehicle, particularly a railway freight car, including the bogie described in Embodiment 2.

[0063] This utility model is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this utility model fall within the scope of this utility model.

Claims

1. A load bearing saddle, characterized in that, include: The supporting saddle body has an arc-shaped inner surface and a flat top structure. A rubber pad mounting base includes a flat portion, a side portion A, a side portion B, a protrusion, and a dovetail tenon. The flat portion has a planar structure, and the side portions A and B are respectively perpendicularly disposed on both sides of the flat portion, forming a first groove structure. This first groove structure is configured for the top of the supporting saddle body to be inserted into. One end of the protrusion is connected to the side portion A, and one end of the dovetail tenon is connected to the side portion B. The upper surface of the protrusion, the upper surface of the dovetail tenon, and the upper surface of the flat part are coplanar; The U-shaped frame mounting base is connected to the side part B and the dovetail tenon, and has a U-shaped frame mounting hole. In use, the plane of the upper surface of the U-shaped frame mounting base is lower than the plane of the upper surface of the dovetail tenon, and a second groove structure is formed between the U-shaped frame mounting base and the side part B.

2. Load-bearing saddle according to claim 1, characterized in that, The U-shaped frame mounting holes are provided in two places, located at both ends of the U-shaped frame mounting base.

3. The load bearing saddle of claim 1, wherein, The lower surface of the U-shaped frame mounting base has an arc-shaped structure; in use, the arc surface of this arc-shaped structure is located above the arc surface of the inner surface of the bearing saddle body.

4. The load bearing saddle of claim 1, wherein, The two corners of the U-shaped frame mounting base away from the side portion B are rounded.

5. The load bearing saddle of claim 1, wherein, A trapezoidal platform-shaped protrusion is provided on the side portion B; in the use state, the upper surface of the trapezoidal platform-shaped protrusion is configured as a surface that gradually slopes downward from the edge of the flat portion; there is a gap between the trapezoidal platform-shaped protrusion and the dovetail tenon.

6. Load-bearing saddle according to claim 5, characterized in that, The end of the dovetail tenon away from the side portion B is located on the U-shaped frame mounting base.

7. The load-bearing saddle according to claim 1, characterized in that: Multiple square protrusions are provided on the outer surfaces of both ends of the bearing saddle body; The outer surfaces at both ends of the bearing saddle body are provided with bearing saddle guide frames, and the length direction of the bearing saddle guide frame forms an obtuse angle with the long side direction of the upper surface of the planar part. In use, the load-bearing saddle guide frame is located below the square protrusion.

8. The load bearing saddle of claim 7, wherein, The load-bearing saddle guide frame is configured as four, and the four load-bearing saddle guide frames are evenly distributed on the edges of the outer surfaces at both ends of the load-bearing saddle body.

9. Load-carrying saddle according to any one of claims 1 to 8, characterized in that An arc-shaped groove is provided on the inner surface of the bearing saddle body.

10. A bogie, characterized by It includes the load-bearing saddle as described in any one of claims 1 to 9.

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