Locomotive bogie traction structure

By introducing spherical bearings, polyurethane, and bolts into the traction structure of the locomotive bogie, a traction force transmission frame that is easy to disassemble is formed, solving the problem of inconvenient disassembly in the prior art and improving maintenance efficiency.

CN224335643UActive Publication Date: 2026-06-09GUANGZHOU LOCOMOTIVE MAINTENANCE SECTION OF CHINA RAILWAY GUANGZHOU BUREAU GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU LOCOMOTIVE MAINTENANCE SECTION OF CHINA RAILWAY GUANGZHOU BUREAU GRP CO LTD
Filing Date
2025-08-28
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The design of the connecting components of the existing locomotive bogie traction structure makes disassembly and maintenance inconvenient, affecting the normal operating efficiency of the locomotive.

Method used

The system employs two traction rods, one and two, which are flexibly connected to the traction plate via spherical bearings. Combined with solid and hollow polyurethane filling, hexagonal nuts, and pin designs, it forms a rigid frame that is easy to disassemble. Hexagonal bolts and wing washers are used to ensure stability.

Benefits of technology

It enables convenient disassembly of the traction structure, significantly reduces the replacement time of individual components, and improves maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224335643U_ABST
    Figure CN224335643U_ABST
Patent Text Reader

Abstract

The utility model relates to locomotive steering structure technical field discloses a locomotive bogie traction structure, including tow bar no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of locomotive steering structure technology, and in particular to a locomotive bogie traction structure. Background Technology

[0002] In the field of railway transportation, the efficient operation of locomotives depends on the coordinated work of many key components. Among them, the bogie traction device is the core component for the HXD1 series locomotives, ensuring their power transmission and operational stability. The bogie is an important key component on the locomotive. It not only bears the heavy responsibility of supporting the weight of the car body and transmitting traction and braking forces, but also needs to ensure that the locomotive runs safely and smoothly on straight and curved tracks. As a key subsystem, the performance of the bogie traction device directly affects the overall performance of the locomotive.

[0003] As a key component of the locomotive, the bogie bears the important responsibilities of supporting the weight of the car body, transmitting traction and braking force, and ensuring the smooth operation of the locomotive. Its traction structure is also a key link connecting the locomotive body and wheelsets to realize power transmission. It can effectively improve the locomotive's adhesion utilization rate and ensure that the powerful traction force can be efficiently transmitted during heavy-load transportation. However, the current design of some connecting components makes disassembly and maintenance extremely inconvenient. Once a component fails, maintenance personnel need to spend a lot of time and energy to disassemble and replace it, which seriously affects the normal operating efficiency of the locomotive. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a locomotive bogie traction structure, which aims to improve the problem that the design of some connecting components in the current technology makes disassembly and maintenance extremely inconvenient. Once a component fails, maintenance personnel need to spend a lot of time and effort to disassemble and replace it, which seriously affects the normal operating efficiency of the locomotive.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a locomotive bogie traction structure, including a second traction rod, a first traction rod on the right side of the second traction rod, a solid polyurethane core on the right side of the first traction rod, a hollow polyurethane core on the left side of the solid polyurethane core, a hexagonal nut threaded to the right end of the first traction rod, a spherical bearing fixedly connected to the middle of the right end of the hexagonal nut, a pin rotatably connected to the right side of the spherical bearing, and a traction plate rotatably connected to the outer wall of the pin.

[0006] As a further description of the above technical solution:

[0007] An end cap is fixedly connected to the left side of the traction rod.

[0008] As a further description of the above technical solution:

[0009] A butterfly-shaped gasket is attached to the outer wall of the end cap.

[0010] As a further description of the above technical solution:

[0011] The outer left side of the end cap is threaded with hexagonal bolts.

[0012] As a further description of the above technical solution:

[0013] A bogie traction ramp is fixedly connected to the middle right side of the traction plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the bogie traction ramp is flexibly connected to the traction plate via a joint bearing. The traction plate is connected to traction rod one and traction rod two via pins, forming a rigid frame for transmitting traction force. The traction force is transmitted to the traction plate through the bogie traction ramp. Its ease of disassembly is reflected in the fact that during disassembly, only the hex bolts need to be loosened to remove the end cover, and after unscrewing the hex nut, the pin can be directly pulled out, realizing the separation of the traction plate from traction rod one and traction rod two, thus achieving the effect of easy disassembly. The time required to replace a single component is shortened compared to the traditional structure, greatly improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a front perspective view of a locomotive bogie traction structure proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of a locomotive bogie traction structure proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of a locomotive bogie traction structure proposed in this utility model;

[0019] Figure 4 This is a structural cross-sectional view of a locomotive bogie traction structure proposed in this utility model;

[0020] Figure 5 This is a partial structural schematic diagram of a locomotive bogie traction structure proposed in this utility model.

[0021] Legend:

[0022] 1. Bogie traction swash plate; 2. Spherical plain bearing; 3. Traction plate; 4. Pin; 5. Traction rod one; 6. Hex nut; 7. Solid polyurethane; 8. Hollow polyurethane; 9. Traction rod two; 10. End cap; 11. Hex bolt; 12. Butterfly gasket. Detailed Implementation

[0023] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides a locomotive bogie traction structure, including a second traction rod 9, a first traction rod 5 on the right side of the second traction rod 9, a solid polyurethane 7 on the right side inside the first traction rod 5, a hollow polyurethane 8 on the left side of the solid polyurethane 7, a hexagonal nut 6 threadedly connected to the right end of the first traction rod 5, a spherical bearing 2 fixedly connected to the middle of the right end of the hexagonal nut 6, a pin 4 rotatably connected to the right side of the spherical bearing 2, and a traction plate 3 rotatably connected to the outer wall of the pin 4.

[0025] Specifically, a traction rod 5 is precisely positioned on the right side of the traction rod 2 9. Further into the internal structure of the traction rod 5, solid polyurethane 7 is filled, providing support and cushioning. To the left of the solid polyurethane 7, a hollow polyurethane 8 is provided, effectively reducing overall weight. At the right end of the traction rod 5, a hexagonal nut 6 is securely installed via a threaded connection. A spherical bearing 2 is fixedly connected to the center of the right end of the hexagonal nut 6, allowing for flexible rotation. To the right of the spherical bearing 2, a pin 4 is rotatably connected, enabling the entire traction assembly to adapt to different working scenarios and usage requirements while fulfilling its traction function.

[0026] Please see the appendix Figure 3 - Appendix Figure 5 Hexagonal bolts 11 are threaded around the left side of the outer wall of the end cap 10. The end cap 10 is fixedly connected to the left side of the traction rod 5. The bogie traction ramp 1 is fixedly connected to the middle right side of the traction plate 3. A butterfly gasket 12 is attached to the outer wall of the end cap 10.

[0027] Specifically, threaded holes are evenly distributed around the left side of the outer wall of the end cap 10, with each thread connected to a hexagonal bolt 11, facilitating tightening and disassembly using tools to securely fix the end cap 10 in the corresponding position. The left end of the traction rod 5 is securely connected to the end cap 10 by welding, making the end cap 10 an important part of the structure of the traction rod 5. At the contact point between the outer wall of the end cap 10 and the adjacent component, a butterfly-shaped gasket 12 is attached to fill the small gap between the end cap 10 and the adjacent component, which can also play a certain role in buffering and shock absorption, effectively extending the service life of the device.

[0028] Working principle: The bogie traction swash plate 1 is flexibly connected to the traction plate 3 via the spherical bearing 2. The traction plate 3 is connected to the first traction rod 5 and the second traction rod 9 via the pin shaft 4, forming a rigid frame for transmitting traction force. The hexagonal nut 6 fixes the axial position of the pin shaft 4. Solid polyurethane 7 and hollow polyurethane 8 fill the gap between the traction rod and the end cover 10, respectively, to buffer and dampen shock. The hexagonal bolt 11 and the butterfly washer 12 fasten the end cover 10 to ensure the stable operation of the polyurethane assembly. The traction force is transmitted to the traction plate 3 through the bogie traction swash plate 1. Its easy disassembly effect is reflected in the fact that during disassembly, only the hexagonal bolt 11 needs to be loosened to remove the end cover 10, and the solid polyurethane 7 and hollow polyurethane 8 can be taken out. After unscrewing the hexagonal nut 6, the pin shaft 4 can be directly pulled out, realizing the separation of the traction plate 3 from the first traction rod 5 and the second traction rod 9, thus achieving the effect of easy disassembly. The time required to replace a single component is shortened compared with the traditional structure, which greatly improves maintenance efficiency.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locomotive bogie traction structure, comprising a second traction rod (9), characterized in that: A traction rod (5) is provided on the right side of the second traction rod (9). A solid polyurethane (7) is provided on the right side inside the first traction rod (5). A hollow polyurethane (8) is provided on the left side of the solid polyurethane (7). A hexagonal nut (6) is threaded to the right end of the first traction rod (5). A spherical bearing (2) is fixedly connected to the middle of the right end of the hexagonal nut (6). A pin (4) is rotatably connected to the right side of the spherical bearing (2). A traction plate (3) is rotatably connected to the outer wall of the pin (4).

2. The locomotive bogie traction structure according to claim 1, characterized in that: An end cap (10) is fixedly connected to the left side of the traction rod (5).

3. The locomotive bogie traction structure according to claim 2, characterized in that: The outer wall of the end cap (10) is fitted with a butterfly-shaped gasket (12).

4. The locomotive bogie traction structure according to claim 2, characterized in that: The outer left side of the end cap (10) is threaded with hexagonal bolts (11).

5. The locomotive bogie traction structure according to claim 1, characterized in that: The bogie traction ramp (1) is fixedly connected to the middle right side of the traction plate (3).