A multi-purpose four-axle combined railway locomotive bogie
By designing a multi-purpose four-axle combined railway locomotive bogie, adopting a Bo-Bo+Bo-Bo axle arrangement structure and traction rod connection, the problems of railway line gradient and curve radius are solved, improving the safety and reliability of railway transportation. It is suitable for various locomotive types and reduces modification costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU JIAOTONG UNIV
- Filing Date
- 2025-03-10
- Publication Date
- 2026-06-05
AI Technical Summary
The gradients and curve radii of some main railway lines are difficult to meet modern requirements, and the harsh environment along the lines leads to excessive renovation costs, affecting the safety and reliability of railway transportation.
Design a multi-purpose four-axle combined railway locomotive bogie, including a traction seat, bogie frame, crossbeam, secondary suspension springs, secondary hydraulic shock absorbers, wheelsets, axle boxes, axle box tie rods, primary hydraulic shock absorbers, gearbox, traction motor, traction motor boom, traction rod, sand box, stone sweeping device, and basic braking device. It adopts a Bo-Bo+Bo-Bo axle arrangement structure, and the bogies are connected as one unit through traction rods and connecting mechanisms, reducing the need for tertiary suspension and improving structural stability.
It achieves high efficiency while being structurally more stable, safe and reliable, and highly versatile, making it applicable to locomotives on both heavy-haul and ordinary lines, reducing modification costs and improving the safety and reliability of railway transportation.
Smart Images

Figure CN224323989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway vehicle engineering technology, and more specifically, to a multi-purpose four-axle combined railway locomotive bogie. Background Technology
[0002] With the continuous development of my country's railway technology, the transport capacity and speed of trunk line transportation have been significantly improved compared to the past. At the same time, higher requirements have been put forward for the safety, reliability and performance of railway vehicles. However, due to the early construction time and relatively backward science and technology, the gradient and curve radius of some trunk lines are difficult to meet the current needs. Moreover, due to the harsh environment along the line, the cost of renovation is too high, and no capacity expansion has been carried out, which seriously restricts railway transportation.
[0003] In view of this, we have studied and improved the existing problems to provide a multi-purpose four-axle combined railway locomotive bogie. The aim of this technology is to solve the problems and improve its practical value. Utility Model Content
[0004] The purpose of this invention is to provide a multi-purpose four-axle combined railway locomotive bogie to solve the problems and shortcomings mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides a multi-purpose four-axle combined railway locomotive bogie, which is achieved through the following specific technical means:
[0006] A multi-purpose four-axle combined railway locomotive bogie includes: a traction seat, a bogie frame, a crossbeam, secondary suspension springs, secondary hydraulic shock absorbers, wheelsets, axle boxes, axle box tie rods, primary hydraulic shock absorbers, a gearbox, a traction motor, a traction motor boom, a traction rod, a sandbox, a stone-sweeping device, and a basic braking device. The bogie frame is located at both ends of the traction seat, and the crossbeam is fixedly located in the middle of the bogie frame. The secondary suspension springs are installed on the top of the crossbeam, and the secondary hydraulic shock absorbers are installed on the outer walls of both sides of the bogie frame, with one end of the secondary hydraulic shock absorber movably connected to the bogie frame. Axle boxes are sleeved and installed at both ends of the wheelsets, and the axle boxes are suspended by the primary hydraulic shock absorbers. The axle box is suspended on the bogie frame, and the axle box is movably connected to the bogie frame via an axle box tie rod; the gearbox is fixedly mounted on the wheelset, and the output end of the gearbox is connected to the axle of the wheelset; the traction motor is suspended on the bogie frame via a traction motor hanger, and the output end of the traction motor is connected to the input end of the gearbox; the traction rod is rotatably mounted at the bottom of the crossbeam, and the connecting mechanism is located at the end of the traction rod away from the crossbeam, and both bogie frames at both ends of the traction seat are connected to the traction seat via the traction rod and the connecting mechanism; a sand box and a stone sweeping device are fixedly mounted at the bottom of one end of the bogie frame, and a basic braking device is fixedly mounted at the bottom of the other end of the bogie frame.
[0007] As a further optimization of this technical solution, the connecting mechanism of the multi-purpose four-axle combined railway locomotive bogie of this utility model includes two connecting parts. The two connecting parts are respectively installed on the traction rods of the two bogie frames at both ends of the traction seat. A single tie rod is provided on the connecting part of one traction rod, and a double tie rod is provided on the connecting part of the other traction rod. The ends of the single tie rod and the double tie rod away from the connecting parts are both connected to the traction seat.
[0008] As a further optimization of this technical solution, the double tie rods of the multi-purpose four-axle combined railway locomotive bogie of this utility model are located on both sides of the single tie rod, and the double tie rods and the single tie rods are staggered.
[0009] As a further optimization of this technical solution, the bogie of this utility model is provided with two traction motors on the inner side of the bogie frame, and the two traction motors are respectively located on both sides of the crossbeam, and the two traction motors are centrally symmetrically distributed with the central axis of the crossbeam as the center.
[0010] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0011] 1. The traction rod of this utility model is rotatably set at the bottom of the crossbeam, and the connecting mechanism is set at the end of the traction rod away from the crossbeam. The two bogie frames at both ends of the traction seat are connected to the traction seat through the traction rod and the connecting mechanism. The two bogies are connected into one unit by the traction rod, making the structure more stable and versatile. It can be used not only for heavy-duty locomotives, but also for locomotives running on ordinary lines. It is applicable not only to electric locomotives, but also to diesel locomotives and shunting locomotives.
[0012] 2. The bogie frame of this utility model is provided with two traction motors on the inner side, and the two traction motors are located on both sides of the crossbeam. The two traction motors are centrally symmetrically distributed with the central axis of the crossbeam as the center, and adopt a Bo-Bo+Bo-Bo axis arrangement, which reduces the three-stage suspension between the tie rod bolster and the bogie frame, so that the distance between the bogie frame and the rail surface will not be too high.
[0013] 3. This utility model improves the multi-purpose four-axle combined railway locomotive bogie, which has the advantages of high strength, long service life, safety and reliability, high efficiency, and can ensure safer and more stable operation while working efficiently. At the same time, most parts can be used interchangeably with locomotives currently in large-scale use, so as to save operating costs. Thus, it effectively solves the problems and shortcomings of existing technologies and equipment. Attached Figure Description
[0014] 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:
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a front view structural diagram of the present utility model;
[0017] Figure 3 This is a top view of the structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the bottom structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the connection mechanism of this utility model.
[0020] In the diagram: 1. Traction seat, 2. Bogie frame, 3. Crossbeam, 4. Secondary suspension spring, 5. Secondary hydraulic shock absorber, 6. Wheelset, 7. Axle box, 8. Axle box tie rod, 9. Primary hydraulic shock absorber, 10. Gearbox, 11. Traction motor, 12. Traction motor boom, 13. Traction rod transmission device, 14. Connecting mechanism, 15. Sand box, 16. Stone sweeping device, 17. Foundation braking device. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figures 1 to 5 This utility model provides a specific technical implementation scheme for a multi-purpose four-axle combined railway locomotive bogie:
[0023] A multi-purpose four-axle combined railway locomotive bogie includes: a traction seat 1, a bogie frame 2, a crossbeam 3, secondary suspension springs 4, secondary hydraulic shock absorbers 5, wheelsets 6, axle boxes 7, axle box tie rods 8, primary hydraulic shock absorbers 9, a gearbox 10, a traction motor 11, a traction motor suspension rod 12, a traction rod transmission device 13, a connecting mechanism 14, a sand box 15, a stone sweeping device 16, and a basic braking device 17. The bogie frame 2 is located at both ends of the traction seat 1, and the crossbeam 3 is fixedly located in the middle of the bogie frame 2. The secondary suspension springs 4 are installed on the top of the crossbeam 3, and the secondary hydraulic shock absorbers 5 are installed on the outer walls of both sides of the bogie frame 2, with one end of the secondary hydraulic shock absorber 5 movably connected to the bogie frame 2. Axle boxes 7 are sleeved and installed at both ends of the wheelsets 6, and the axle boxes 7... The bogie frame 2 is suspended by a series of hydraulic shock absorbers 9, and the axle box 7 is also movably connected to the bogie frame 2 by the axle box tie rod 8; the gearbox 10 is fixedly installed on the wheelset 6, and the output end of the gearbox 10 is connected to the shaft of the wheelset 6; the traction motor 11 is suspended on the bogie frame 2 by the traction motor hanger 12, and the output end of the traction motor 11 is connected to the input end of the gearbox 10; two traction motors 11 are arranged on the inner side of the bogie frame 2, and the two traction motors 11 are located on both sides of the crossbeam 3, and the two traction motors 11 are centrally symmetrically distributed with the central axis of the crossbeam 3 as the center, adopting a Bo-Bo+Bo-Bo axle arrangement, which reduces the three-stage suspension between the tie rod bolster and the bogie frame, so that the distance between the bogie frame and the rail surface is not too high.
[0024] The traction rod drive device 13 is rotatably mounted at the bottom of the crossbeam 3, and the connecting mechanism 14 is located at the end of the traction rod drive device 13 away from the crossbeam 3. Both bogie frames 2 at both ends of the traction seat 1 are connected to the traction seat 1 via the traction rod drive device 13 and the connecting mechanism 14. The connecting mechanism 14 includes two connecting members 1401, which are respectively mounted on the traction rod drive devices 13 at both ends of the traction seat 1. Furthermore, each connecting member 1401 of the traction rod drive device 13 is equipped with... A single tie rod 1402 is provided, and a double tie rod 1403 is provided on the connecting part 1401 of the other traction rod transmission device 13. The ends of the single tie rod 1402 and the double tie rod 1403 away from the connecting part 1401 are both connected to the traction seat 1. The two bogies are connected into one unit through the traction rod transmission device 13, making the structure more stable and versatile. It can be used not only for heavy-duty locomotives, but also for locomotives running on ordinary lines. It is applicable not only to electric locomotives, but also to diesel locomotives and shunting locomotives.
[0025] The double tie rods 1403 are located on both sides of the single tie rod 1402, and the double tie rods 1403 and the single tie rod 1402 are staggered to make the connection less likely to fall off, further improving the firmness and stability of the connection with the traction seat 1.
[0026] A sand box 15 and a stone sweeping device 16 are fixedly installed at the bottom of one end of the bogie frame 2. The sand box 15 is mainly used to spread sand on the rail to increase the friction of the rail, while the stone sweeping device 16 is used to sweep away gravel and other debris on the rail. A basic braking device 17 is fixedly installed at the bottom of the other end of the bogie frame 2, which is mainly used for braking the bogie frame 2.
[0027] In summary, this multi-purpose four-axle combined railway locomotive bogie is rotatably mounted at the bottom of the crossbeam via a traction rod, with the connecting mechanism located at the end of the traction rod furthest from the crossbeam. Both bogie frames at both ends of the traction seat are connected to the traction seat via the traction rod and the connecting mechanism. The traction rod connects the two bogies into a single unit, making the structure more stable and highly versatile. It can be used not only for heavy-haul locomotives but also for locomotives operating on ordinary lines, and is suitable for electric locomotives, diesel locomotives, and shunting locomotives. Two traction motors are installed inside the bogie frame, and the two traction motors are... Located on both sides of the crossbeam, the two traction motors are centrally symmetrically distributed around the central axis of the crossbeam, adopting a Bo-Bo+Bo-Bo axle arrangement. This reduces the three-stage suspension between the tie rod bolster and the bogie frame, ensuring that the distance between the bogie frame and the rail surface is not too high. Through improvements to the multi-purpose four-axle combined railway locomotive bogie, it features high strength, long service life, safety and reliability, and high efficiency. It can ensure both high-efficiency operation and enhanced safety and stability. At the same time, most parts are interchangeable with currently widely used locomotives, saving operating costs. This effectively solves the problems and shortcomings in existing technologies and equipment.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-purpose four-axle combined railway locomotive bogie, comprising: The components include: traction seat (1), bogie frame (2), crossbeam (3), secondary suspension spring (4), secondary hydraulic shock absorber (5), wheelset (6), axle box (7), axle box tie rod (8), primary hydraulic shock absorber (9), gearbox (10), traction motor (11), traction motor boom (12), traction rod transmission device (13), connecting mechanism (14), sand box (15), stone sweeping device (16), and basic braking device (17); characterized in that: the bogie frame (2) The traction seat (1) is set at both ends, and the crossbeam (3) is fixedly set at the middle position of the bogie frame (2); the secondary suspension spring (4) is installed on the top of the crossbeam (3), and the secondary hydraulic shock absorber (5) is installed on the outer wall of both sides of the bogie frame (2), and one end of the secondary hydraulic shock absorber (5) is movably connected to the bogie frame (2); the wheelset (6) is fitted with axle boxes (7) at both ends, and the axle boxes (7) are suspended on the bogie frame through the primary hydraulic shock absorber (9). (2) and the axle box (7) is movably connected to the bogie frame (2) via the axle box tie rod (8); the gearbox (10) is fixedly installed on the wheelset (6), and the output end of the gearbox (10) is connected to the shaft of the wheelset (6); the traction motor (11) is suspended on the bogie frame (2) via the traction motor hanger (12), and the output end of the traction motor (11) is connected to the input end of the gearbox (10); the traction rod transmission device (13) is rotatably set on the bogie frame (2). The bottom of the crossbeam (3) and the connecting mechanism (14) are located at the end of the traction rod transmission device (13) away from the crossbeam (3), and the two bogie frames (2) at both ends of the traction seat (1) are connected to the traction seat (1) through the traction rod transmission device (13) and the connecting mechanism (14); a sand box (15) and a stone sweeping device (16) are fixedly installed at the bottom of one end of the bogie frame (2), and a basic braking device (17) is fixedly installed at the bottom of the other end of the bogie frame (2).
2. The multi-purpose four-axle combined railway locomotive bogie according to claim 1, characterized in that: The connecting mechanism (14) includes two connecting parts (1401). The two connecting parts (1401) are respectively installed on the traction rod transmission device (13) of the two bogie frames (2) at both ends of the traction seat (1). A single tie rod (1402) is provided on the connecting part (1401) of one traction rod transmission device (13), and a double tie rod (1403) is provided on the connecting part (1401) of the other traction rod transmission device (13). The ends of the single tie rod (1402) and the double tie rod (1403) away from the connecting part (1401) are both connected to the traction seat (1).
3. The multi-purpose four-axle combined railway locomotive bogie according to claim 2, characterized in that: The double tie rod (1403) is located on both sides of the single tie rod (1402), and the double tie rod (1403) and the single tie rod (1402) are staggered.
4. The multi-purpose four-axle combined railway locomotive bogie according to claim 1, characterized in that: Two traction motors (11) are provided on the inner side of the bogie frame (2), and the two traction motors (11) are located on both sides of the crossbeam (3), and the two traction motors (11) are centrally symmetrically distributed with the central axis of the crossbeam (3) as the center.