Ridge type bogie device

Abstract

The invention discloses a ridge type bogie device, which belongs to the technical field of bogies, and comprises a central beam, the two ends of the central beam are fixedly connected with central supporting arms extending downwards, the lower ends of the central supporting arms are provided with stabilizing wheel mounting structures, and the stabilizing wheel mounting structures are used for mounting stabilizing wheels; the two sides of the middle of the central beam are fixedly connected with ridge beams, the ends, away from the central beam, of the ridge beams are fixedly connected with end beams, the ends of the end beams are fixedly connected with end supporting arms extending downwards, the lower ends of the end supporting arms are provided with guide wheel mounting structures, and the guide wheel mounting structures are used for mounting guide wheels. The stability, reliability and non-deformability of the ridge type bogie can be improved.

Description

Technical Field

[0001] This invention belongs to the field of bogie technology, and particularly relates to a backbone bogie device. Background Technology

[0002] A backbone bogie is a special type of vehicle frame. Its operating principle primarily involves using a main beam as the main support structure, mounting the engine and other components beneath it, forming a structure similar to the human spine. This design provides the vehicle with better stability and load-bearing capacity, while also improving comfort and handling. Through the support of the main beam, the backbone bogie can withstand the weight from the motor and other components, thus reducing frame torsion and deformation. Furthermore, the backbone bogie effectively disperses impact forces, improving the vehicle's vibration resistance and driving stability. In short, the backbone bogie's operating principle, through the support of the main beam and its impact-dispersing design, improves vehicle stability and load-bearing capacity, while also enhancing handling and driving safety. This design is widely used in modern transportation, especially for vehicles that need to bear heavy loads and operate on complex road conditions; the backbone bogie is a very practical design choice for them.

[0003] A spine-type bogie is a special type of bogie characterized by a main beam that extends from the front steering column of the vehicle to the rear shock absorber support. This main beam is usually made of steel tubing and resembles the human spine.

[0004] Chinese utility model patent (publication number CN207089305U, publication date: 2018-03-13) discloses a bogie for straddle-type monorail vehicles, specifically a spine-type dual-axle powered bogie for straddle-type monorail vehicles, including a central traction device mounting beam; wherein: a spine beam integrally formed with the central traction device mounting beam is provided at the middle position of the central traction device mounting beam, and guide wheel mounting beams integrally formed with the spine beam are provided at both ends of the spine beam; stabilizing wheel support arms integrally formed with the central traction device mounting beam are provided at both ends of the central traction device mounting beam, and guide wheel support arms integrally formed with the guide wheel mounting beams are provided at both ends of the guide wheel mounting beams; the central traction device mounting beam, the spine beam, and the two guide wheel mounting beams form a spine-type bogie body. This utility model has a compact structure, reduces the overall volume, reduces the vehicle's vertical passage cross-section, reduces the overall weight, distributes the load evenly during operation, reduces the probability of wear on the running wheels during operation, extends the service life of the running wheels, improves operational safety, and reduces later maintenance costs and operating costs.

[0005] However, the existing technology has a problem: although it adds a stabilizing wheel, it is difficult to handle stability issues when facing complex road conditions, such as inclined and frequently turning sections, using only the stabilizing wheel. Especially at high speeds or when facing sharp turns, the entire bogie may bend. Therefore, when encountering inclined or winding road conditions, the backbone bogie is at risk of instability or deformation, resulting in low operational reliability. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides a backbone-type bogie device, which has the advantages of high stability, high reliability and resistance to deformation, thus solving the problems of the prior art.

[0007] The present invention is implemented as follows: a spine-type bogie device includes a central beam, with downwardly extending central support arms fixedly connected to both ends of the central beam. A stabilizer wheel mounting structure is provided at the lower end of each central support arm for mounting a stabilizer wheel. A spine beam is fixedly connected to both sides of the middle portion of the central beam, and an end beam is fixedly connected to the end of each spine beam away from the central beam. An end support arm extending downward is fixedly connected to the end of each end beam, and a guide wheel mounting structure is provided at the lower end of each end support arm for mounting a guide wheel. The spine is provided with a wheel mounting structure for mounting wheels. The wheel mounting structure includes a wheel drive component and a wheel mounting shaft. The spine has a first receiving groove for receiving the wheel drive component. The wheel mounting shaft is rotatably mounted on the spine and is connected to the wheel drive component in a transmission manner. The central beam has a first mounting hole, and the end beam has a second mounting hole. The second mounting hole is aligned with the first mounting hole, and a fixing rod is fixedly connected to the first mounting hole and the second mounting hole.

[0008] In a preferred embodiment of the present invention, both end beams are parallel to the central beam, and a wheel space is formed between the two end beams and the central beam, with the wheel disposed in the wheel space.

[0009] As a preferred embodiment of the present invention, the driving component of the walking wheel is a gear system of a transmission, and the driving wheel mounting shaft is mounted on the power output end of the differential.

[0010] The spine includes a connecting part and a mounting part. The first receiving groove is located inside the mounting part. The connecting part and the central beam are an integral structure. One end of the mounting part is fixedly connected to the end of the connecting part away from the central beam. The other end of the mounting part is fixedly connected to the end support arm.

[0011] As a preferred embodiment of the present invention, both the first mounting hole and the second mounting hole are threaded holes, and the direction of rotation, pitch, inner diameter, and outer diameter of the threads of the first mounting hole and the second mounting hole are equal; the outer surface of the fixing rod is provided with a first external thread and a second external thread, the first external thread and the first mounting hole are connected by threads, and the second external thread and the second mounting hole are connected by threads.

[0012] In a preferred embodiment of the present invention, a limiting block is fixedly connected to one end of the fixing rod. After the fixing rod is installed in the first mounting hole and the second mounting hole, the limiting block fits against the outer side of the end support arm. A nut is provided at the other end of the fixing rod. The nut is threadedly connected to the first external thread and fits against the end support arm.

[0013] As a preferred embodiment of the present invention, two sets of limiting wheels are rotatably sleeved on the fixed rod, each set of limiting wheels including two symmetrically arranged limiting wheels, and the two limiting wheels respectively abutting the two sides of the traveling wheel.

[0014] As a preferred embodiment of the present invention, the limiting wheel includes a wheel body portion and a bearing portion, wherein the wheel body portion is fixedly sleeved on the outer ring of the bearing portion, and the inner ring of the bearing portion is sleeved on the fixing rod.

[0015] As a preferred embodiment of the present invention, the outer edge of the traveling wheel is provided with an annular groove, and one side of the limiting wheel extends into the annular groove.

[0016] 1. Enhanced Structural Stability: By optimizing the design of the central and end beams and equipping them with stabilizing wheels, the structural rigidity of the entire device has been significantly improved. This measure effectively reduces swaying and deformation during operation, further enhancing the operational stability of the rail transit vehicle.

[0017] 2. Optimized Guiding Function: The installation of guide wheels optimizes the guiding performance of the device on the track, effectively preventing sideslip and improving the operational safety and stability of rail transit vehicles.

[0018] 3. Improved walking performance: The walking wheels and their mounting structure are carefully designed to better adapt to the curvature and unevenness of the track, thereby improving the vehicle's running stability and efficiency.

[0019] 4. By setting fixed rods, the central support arm and end support arms can be reinforced, making the entire spine bogie device more stable and resistant to deformation.

[0020] These optimization measures not only improve transportation efficiency but also provide passengers with a smoother and safer travel experience. Furthermore, the implementation of these measures facilitates routine maintenance and upkeep, providing a strong guarantee for the continued stable operation of the rail transit system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the spine-type bogie device provided in an embodiment of the present invention without the installation of the traveling wheels, guide wheels, and stabilizing wheels; Figure 2 This is a schematic diagram of the structure of the spine-type bogie device and the track provided in the embodiment of the present invention; Figure 3 This is provided by the embodiments of the present invention. Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the structure of the spine-type bogie device and the fixed rod provided in the embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the fixing rod provided in an embodiment of the present invention; Figure 6 This is provided by the embodiments of the present invention. Figure 5 A magnified structural diagram of part B in the middle section; Figure 7 This is a schematic diagram of the structure of the traveling wheel drive component of the spine-type bogie device provided in an embodiment of the present invention.

[0022] In the diagram: 1. Central beam; 2. Ridge beam; 201. Connecting part; 202. Mounting part; 3. Central support arm; 4. Stabilizing wheel mounting structure; 5. End beam; 6. End support arm; 7. Guide wheel mounting structure; 8. Traveling wheel mounting structure; 9. Traveling wheel; 10. Guide wheel; 11. Stabilizing wheel; 81. Traveling wheel drive component; 82. Traveling wheel mounting shaft; 13. First mounting hole; 14. Second mounting hole; 15. Fixing rod; 16. First external thread; 17. Second external thread; 18. Limiting block; 19. Nut; 20. Limiting wheel; 2001. Wheel body part; 2002. Bearing part; 21. Annular groove. Detailed Implementation

[0023] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] See Figures 1-4The spine-type bogie device provided in this embodiment of the invention includes a central beam 1, with downwardly extending central support arms 3 fixedly connected to both ends of the central beam 1. A stabilizing wheel mounting structure 4 is provided at the lower end of the central support arm 3, and the stabilizing wheel mounting structure 4 is used to install stabilizing wheels 11. A spine 2 is fixedly connected to both sides of the middle part of the central beam 1. An end beam 5 is fixedly connected to the end of the spine 2 away from the central beam 1. An end support arm 6 is fixedly connected to the end of the end beam 5, and a guide wheel mounting structure 7 is provided at the lower end of the end support arm 6, and the guide wheel mounting structure 7 is used to install guide wheels 10. The spine 2 is provided with a walking wheel mounting structure 8, which is used to mount walking wheels 9. The walking wheel mounting structure 8 includes a walking wheel drive component 81 and a walking wheel mounting shaft 82. The spine 2 is provided with a first receiving groove 12 for accommodating the walking wheel drive component 81. The walking wheel mounting shaft 82 is rotatably mounted on the spine 2, and the walking wheel mounting shaft 82 and the walking wheel drive component 81 are connected in a transmission manner.

[0026] This technical solution is a backbone-type bogie device, mainly used under the carriages of rail transit vehicles such as railways, subways, and light rails. The following are the main effects of this solution: 1. Enhanced structural stability: The design of the central beam 1 and end beams 5, as well as the installation of the stabilizing wheel 11, greatly enhance the structural stability of the entire device and reduce swaying and deformation during operation.

[0027] 2. Guiding function: The installation of guide wheels 10 enables the bogie assembly to run stably on the track and effectively prevents sideslip, thereby improving operational safety and stability.

[0028] 3. Traveling Function: The traveling wheels 9 are used to move the entire device on the track. Due to the design of the traveling wheel mounting structure 8, the traveling wheels 9 can better adapt to the curvature and unevenness of the track, thereby improving the smoothness and efficiency of the vehicle's operation.

[0029] 4. Enhanced service life: A reasonable layout and structural design also help to extend the service life of each component, reduce the failure rate, and thus improve the overall operational reliability of the device.

[0030] In summary, this design scheme, through a series of optimizations, improves the operational stability and safety of rail transit vehicles, while also facilitating daily maintenance and upkeep.

[0031] The central beam 1 is provided with a first mounting hole 13, and the end beam 5 is provided with a second mounting hole 14. The second mounting hole 14 is aligned with the first mounting hole 13, and a fixing rod 15 is fixedly connected to the first mounting hole 13 and the second mounting hole 14. By setting the fixing rod 15, the central support arm 3 and the end support arm 6 can be reinforced, making the entire spine-type bogie device more stable and having an anti-deformation effect.

[0032] Furthermore, both end beams 5 are parallel to the central beam 1, and a wheel space is formed between the two end beams 5 and the central beam 1, with the wheel 9 disposed in the wheel space.

[0033] See Figure 7 The travel wheel drive component 81 is a gear system of the transmission, and the travel wheel mounting shaft 82 is mounted on the power output end of the differential. For example, the travel wheel drive component 81 includes a drive motor and transmission gears, with the drive motor driving the travel wheel mounting shaft 82 to rotate via the transmission gears. A motor disc is provided at the opening of the first receiving groove 12, and the drive motor is fixedly connected to the motor disc. Several transmission gears are disposed in the first receiving groove 12, forming a transmission gear set, thereby constituting a transmission.

[0034] See Figures 1-5 The spine 2 includes a connecting part 201 and a mounting part 202. The first receiving groove 12 is located inside the mounting part 202. The connecting part 201 and the central beam 1 are an integral structure (which can ensure the stable connection). One end of the mounting part 202 is fixedly connected to the end of the connecting part 201 away from the central beam 1 (for example, by welding or bolting). The other end of the mounting part 202 is fixedly connected to the end support arm 6.

[0035] With this configuration, the drive component 81 for the walking wheel needs to be installed inside the mounting section 202. The drive component 81 is a wear part and requires regular inspection and maintenance. To facilitate inspection and maintenance of the drive component 81, the mounting section 202 comprises two parts: a first sub-mounting section 202 and a second sub-mounting section 202. The first and second sub-mounting sections 202 are connected by bolts. This configuration allows the mounting section 202 to be easily disassembled into two parts, thus facilitating inspection and maintenance of the drive component 81. However, this technical solution also has corresponding drawbacks. For example, the first and second sub-mounting sections 202 are prone to loosening, leading to instability in the entire device. This design makes the installation and disassembly of each component very convenient, facilitating daily maintenance and reducing operating costs.

[0036] See Figure 1 , Figure 2 , Figure 4 and Figure 5 Both the first mounting hole 13 and the second mounting hole 14 are threaded holes, and the direction of rotation, pitch, inner diameter, and outer diameter of the threads in the first mounting hole 13 and the second mounting hole 14 are equal. The outer surface of the fixing rod 15 is provided with a first external thread 16 and a second external thread 17. The first external thread 16 and the first mounting hole 13 are connected by threads, and the second external thread 17 and the second mounting hole 14 are connected by threads.

[0037] By rotating the fixing rod 15, it can be connected through the first mounting hole 13 and the second mounting hole 14, and the first external thread 16 is connected to the first mounting hole 13, and the second external thread 17 is connected to the second mounting hole 14. With this arrangement, the positions of the central support arm 3 and the end support arm 6 are more secure, preventing tilting under force, and the installation is also more convenient due to the threaded connection.

[0038] See Figure 1 , Figure 2 , Figure 4 and Figure 5 One end of the fixing rod 15 is fixedly connected to a limiting block 18. After the fixing rod 15 is installed in the first mounting hole 13 and the second mounting hole 14, the limiting block 18 fits against the outside of the end support arm 6. The other end of the fixing rod 15 is provided with a nut 19. The nut 19 is threadedly connected to the first external thread 16 and fits against the end support arm 6.

[0039] See Figure 4 and Figure 5 Two sets of limiting wheels 20 are rotatably sleeved on the fixed rod 15. Each set of limiting wheels 20 includes two symmetrically arranged limiting wheels 20, which respectively abut against both sides of the traveling wheel 9. During long-term use, or in complex road conditions (such as tilting or turning), the traveling wheel 9 is prone to tilting due to tilting forces. This design allows the limiting wheels 20 to limit the traveling wheel 9, preventing it from tilting, thereby improving durability and adaptability to complex road conditions.

[0040] See Figure 5 and Figure 6 The limiting wheel 20 includes a wheel body portion 2001 and a bearing portion 2002. The wheel body portion 2001 is fixedly sleeved on the outer ring of the bearing portion 2002, and the inner ring of the bearing portion 2002 is sleeved on the fixing rod 15.

[0041] See Figure 2 and Figure 3The outer edge of the traveling wheel 9 is provided with an annular groove 21, and one side of the limiting wheel 20 extends into the annular groove 21. Since the fixing rod 15 needs to pass through the first mounting hole 13, the second mounting hole 14, and the first mounting hole 13 sequentially to complete the installation, the limiting wheel 20 cannot be pre-installed on the fixing rod 15, as this would prevent the fixing rod 15 from passing through each mounting hole. If the limiting wheel 20 is only fitted onto the fixing rod 15 while it is passing through the first mounting hole 13, the second mounting hole 14, and the first mounting hole 13, it would be difficult to fix the axial position of the limiting wheel 20. This design allows one side of the limiting wheel 20 to be engaged in the annular groove 21, and the limiting groove can limit the positioning of the limiting wheel 20.

[0042] This backbone-type bogie assembly is primarily used under the carriages of rail transit vehicles such as railways, subways, and light rail. Its design significantly improves structural stability, reducing swaying and deformation during operation. The installation of guide wheels ensures stable operation on the track, effectively preventing sideslip and thus improving operational safety and stability. The design of the running wheels allows the assembly to better adapt to track curvature and unevenness, improving vehicle smoothness and efficiency. Furthermore, the rational layout and structural design extend the service life of each component, reduce the failure rate, and enhance the operational reliability of the assembly. In summary, this design significantly improves the operational stability and safety of rail transit vehicles while facilitating daily maintenance and upkeep.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spine-type bogie assembly, comprising a central beam (1), characterized in that: The central beam (1) is fixedly connected to both ends with downwardly extending central support arms (3). The lower end of the central support arm (3) is provided with a stabilizing wheel mounting structure (4), which is used to install stabilizing wheels (11). The central beam (1) is fixedly connected to both sides of the middle section with spine beams (2). The ends of the spine beams (2) away from the central beam (1) are fixedly connected to end beams (5). The ends of the end beams (5) are fixedly connected to downwardly extending end support arms (6). The lower ends of the end support arms (6) are provided with guide wheel mounting structures (7), which are used to install guide wheels (10). The spine (2) is provided with a walking wheel mounting structure (8), which is used to mount the walking wheel (9). The walking wheel mounting structure (8) includes a walking wheel drive component (81) and a walking wheel mounting shaft (82). The spine (2) is provided with a first receiving groove (12) for accommodating the walking wheel drive component (81). The walking wheel mounting shaft (82) is rotatably mounted on the spine (2), and the walking wheel mounting shaft (82) and the walking wheel drive component (81) are connected in a transmission. The central beam (1) is provided with a first mounting hole (13), and the end beam (5) is provided with a second mounting hole (14). The second mounting hole (14) and the first mounting hole (13) are aligned, and a fixing rod (15) is fixedly connected in the first mounting hole (13) and the second mounting hole (14).

2. The backbone bogie device as described in claim 1, characterized in that: Both end beams (5) are parallel to the central beam (1), and a wheel space is formed between the two end beams (5) and the central beam (1), with the wheel (9) disposed in the wheel space.

3. The backbone bogie device as described in claim 1, characterized in that: The drive unit (81) for the walking wheel is a gear system of the transmission, and the shaft (82) for the walking wheel is mounted on the power output end of the differential.

4. The backbone bogie device as described in claim 1, characterized in that: The spine (2) includes a connecting part (201) and a mounting part (202). The first receiving groove (12) is located inside the mounting part (202). The connecting part (201) and the central beam (1) are an integral structure. One end of the mounting part (202) is fixedly connected to the end of the connecting part (201) away from the central beam (1). The other end of the mounting part (202) is fixedly connected to the end support arm (6).

5. The backbone bogie device as described in claim 4, characterized in that: Both the first mounting hole (13) and the second mounting hole (14) are threaded holes, and the direction of rotation, pitch, inner diameter and outer diameter of the threads of the first mounting hole (13) and the second mounting hole (14) are equal; The outer surface of the fixing rod (15) is provided with a first external thread (16) and a second external thread (17). The first external thread (16) and the first mounting hole (13) are connected by threads, and the second external thread (17) and the second mounting hole (14) are connected by threads.

6. The backbone bogie device as described in claim 5, characterized in that: One end of the fixing rod (15) is fixedly connected to a limiting block (18). After the fixing rod (15) is installed in the first mounting hole (13) and the second mounting hole (14), the limiting block (18) fits against the outside of the end support arm (6). The other end of the fixing rod (15) is provided with a nut (19). The nut (19) is threadedly connected to the first external thread (16). The nut (19) fits against the end support arm (6).

7. The backbone bogie device as described in claim 5 or 6, characterized in that: Two sets of limiting wheels (20) are rotatably sleeved on the fixed rod (15). Each set of limiting wheels (20) includes two symmetrically arranged limiting wheels (20), and the two limiting wheels (20) are respectively attached to both sides of the traveling wheel (9).

8. The backbone bogie device as described in claim 7, characterized in that: The limiting wheel (20) includes a wheel body part (2001) and a bearing part (2002). The wheel body part (2001) is fixedly sleeved on the outer ring of the bearing part (2002), and the inner ring of the bearing part (2002) is sleeved on the fixing rod (15).

9. The backbone bogie device as described in claim 8, characterized in that: The outer edge of the walking wheel (9) is provided with an annular groove (21), and one side of the limiting wheel (20) extends into the annular groove (21).

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