Driving wheel pair sky rail bogie and connecting structure thereof

Abstract

The utility model discloses a driving wheel pair sky rail bogie and a connecting structure thereof. The driving wheel pair sky rail bogie comprises a framework assembly, the suspension assembly is fixed at the lower part of the framework assembly and is used for bearing a suspension vehicle body; the driving wheel pair is arranged on the framework assembly and is used for driving the framework assembly and the suspension assembly to move along the track; the vehicle body vibration reduction connecting structure is connected to the lower portion of the framework assembly and used for being connected with a suspended vehicle body; the driving wheel pair comprises a wheel pair and a wheel pair driving device, wherein the wheel pair is connected through a gear box and can rotate synchronously, and the wheel pair driving device is fixed to the framework assembly, connected with the gear box and drives the wheel pair to rotate. Due to the design of the driving wheel pairs, each wheel can better adapt to curve changes of a track, when the sky rail passes through a curve, transverse slippage and abrasion of the wheel pairs can be effectively reduced, the stability and safety of vehicle running are improved, the derailing risk is reduced, and the driving wheel pairs are particularly suitable for complex and changeable line layout of the sky rail, and the service life of the sky rail is prolonged. And the stability of the air rail system during operation on curves with different curvatures is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation systems, in particular to a driving wheel pair empty rail bogie and a connection structure thereof. Background Art

[0002] Currently, my country's multimodal transport sector is relatively underdeveloped, with a long-standing reliance on road transport. Road, rail, and water transport face significant challenges, including poor coordination and integration, a poor market environment, misaligned regulations and standards, and slow adoption of advanced technologies. In the freight sector, while containers are widely used in ports, logistics, and coal operations, transportation often relies on large numbers of trucks due to the long distances between railway stations and the complex surrounding environments in some areas. This leads to frequent congestion, pollution, inefficiency, and safety hazards. Against this backdrop, aerial rail freight systems, which effectively circumvent these issues, are attracting market attention and hold promising prospects.

[0003] Existing suspended monorail systems, whether for passenger or freight transport, typically utilize a lower open track beam. Their running systems are equipped with solid rubber wheels or pneumatic tires. This design provides excellent vibration damping and a comfortable ride, structurally ensuring the stability and reliability of the aerial rail system during operation and laying the foundation for smooth cargo transportation.

[0004] However, the aerial rail transportation system is not perfect. Its track construction costs are relatively high, requiring a large amount of upfront capital investment for infrastructure construction, including the erection of track beams and the construction of supporting structures. In terms of technical maintenance, due to its relatively complex system, which involves maintenance work on many aspects such as the aerial track, vehicle running gear, and related control systems, it requires a high level of professional technicians and maintenance equipment, and the maintenance cost is relatively high. In addition, the system's transportation capacity is limited to a certain extent by the design of the tracks and vehicles. It is difficult to transport ultra-heavy cargo on a large scale like traditional rail transportation, and may be unable to cope with the specific needs of large-scale, long-distance cargo transportation. In addition, its route planning is relatively fixed and lacks flexibility. Once built, it is difficult to quickly adjust and expand according to changes in actual transportation needs. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and to provide a driving wheel-to-rail bogie and its connection structure that does not require laying rails, has low track construction costs, can carry ultra-heavy cargo, and effectively cope with large-volume and long-distance specific cargo transportation.

[0006] To achieve this purpose, the driving wheel pair bogie designed in the utility model includes a frame assembly; a suspension assembly fixed to the lower part of the frame assembly and used to carry the suspended vehicle body; a driving wheel pair installed on the frame assembly and used to drive the frame assembly and the suspension assembly to move along the track; and a vehicle body vibration damping connection structure connected to the lower part of the frame assembly and used to connect the suspended vehicle body; the driving wheel pair includes a wheel pair connected by a gear box and capable of synchronous rotation, and a wheel pair driving device fixed to the frame assembly, connected to the gear box and driving the wheel pair to rotate.

[0007] Furthermore, the frame assembly includes a frame body, and at least one set of the driving wheel pairs is symmetrically installed on the front and rear sides of the frame body, and the gearbox of each set of driving wheel pairs is connected to a wheel pair driving device, and the wheel pair driving device is fixed on the frame body.

[0008] Furthermore, an elastic buffer structure is provided between the gear box of each driving wheel pair and the frame body.

[0009] Furthermore, the driving wheelset also includes a caliper and brake disc mechanism for braking the wheelset, an accumulator for storing braking force, and a hydraulic unit for providing braking force.

[0010] Furthermore, at least one pair of guide wheels are symmetrically arranged on the left and right sides of the frame body, and each pair of guide wheels includes two guide wheels symmetrically arranged on the left and right sides of the frame body. The axial direction of the guide wheels is arranged perpendicular to the axial direction of the wheelset, and the guide wheels can roll in contact with the middle inner surface of the lower open track to assist the driving wheel pair empty rail bogie to move along the lower open track.

[0011] Furthermore, the suspension assembly is arranged at the lower part of the middle part of the frame body, and is located between the driving wheel pairs on the front and rear sides of the frame body.

[0012] Furthermore, the suspension assembly includes a suspension rod with its top inserted into and fixed inside the frame body and a pillow beam fixed to the bottom of the suspension rod, and a top surface of the pillow beam is provided with a plurality of elastic support structures for supporting the suspension vehicle body.

[0013] Furthermore, the left and right bottom surfaces of the frame body are fixed with side roll stops for preventing the suspension body from shaking left and right and colliding with the bottom surface of the frame body to cause damage.

[0014] Furthermore, the vehicle body vibration-damping connection structure includes shock absorbers symmetrically connected to the left and right sides of the frame body, and a traction rod connected to the front or rear of the frame body.

[0015] Furthermore, a connection structure of a driving wheel pair to an empty rail bogie includes a suspension car body and a lower open track, wherein the wheel pair of the driving wheel pair to the empty rail bogie is arranged on the lower open track, the suspension car body is supported on the suspension assembly, and the car body vibration damping connection structure is connected between the suspension car body and the driving wheel pair to the empty rail bogie.

[0016] The beneficial effects of the present invention are as follows: the design of the driving wheel set in the present invention enables each wheel to better adapt to the curve changes of the track, and when the empty track passes through a curve, it can effectively reduce the lateral slip and wear of the wheel set, improve the stability and safety of the vehicle's driving, and reduce the risk of derailment. It is especially suitable for the complex and changeable line layout of the empty track, and ensures the stability of the empty track system when running on curves with different curvatures. The suspension assembly is used to carry the suspension body, which can effectively buffer and absorb various vibrations and impacts from the track. Whether it is the unevenness of the track or the dynamic changes such as acceleration and deceleration during the operation of the vehicle, it can be effectively adjusted through the suspension system, providing a comfortable transportation environment for passengers or goods, and reducing equipment damage and cargo loss caused by vibration. The wheel set drive device is directly connected to the gearbox and drives the wheel set to rotate. This direct drive method can efficiently transmit power to the wheel set, reduce energy loss during power transmission, improve drive efficiency, and ensure that the empty track vehicle can obtain sufficient power to meet the needs of various operating conditions, such as starting, accelerating, climbing, and maintaining a stable operating speed. Connecting the synchronously rotating wheels through a gearbox ensures the synchronization of the two wheels during the driving process, avoiding problems such as vehicle deviation and rail gnawing caused by inconsistent wheel speeds, improving the vehicle's controllability and driving accuracy, and enabling the aerial rail vehicle to run accurately along the predetermined track line, which is conducive to the realization of automated driving and precise docking stations. The frame assembly serves as the core structural framework of the entire bogie, organically integrating key components such as the suspension assembly, drive wheels, and vehicle body vibration damping connection structure, making the connection between the components more stable and coordinated, which is conducive to the compact layout and lightweight design of the entire bogie. On the premise of meeting the strength and rigidity requirements of the aerial rail vehicle, it reduces the vehicle's own weight, reduces energy consumption, and improves transportation efficiency. It also facilitates the installation, maintenance, and inspection of the bogie. The car body vibration damping connection structure connects the suspension car body and the frame assembly, which can not only further attenuate the vibration transmitted from the track to the car body and improve the riding comfort of the passengers in the car, but also effectively compensate for the relative movement between the car body and the bogie caused by factors such as track deformation and vehicle dynamic displacement during vehicle operation, thereby ensuring the integrity and stability of the vehicle, preventing safety accidents caused by loosening or deformation of the connection parts, and extending the service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of the driving wheel pair of the empty rail bogie in the utility model;

[0018] Figure 2 This is a front view of the driving wheel pair empty rail bogie in the utility model;

[0019] Figure 3 This is a left side view of the driving wheel pair bogie of the utility model;

[0020] Figure 4 This is the main view of the frame body in the utility model;

[0021] Figure 5 It is a top view of the main frame of the utility model;

[0022] Figure 6 It is a left view of the main frame of the utility model;

[0023] Figure 7 A perspective view of the wheelset portion of the present invention;

[0024] Figure 8 It is a top view of the wheelset portion of the present invention;

[0025] Figure 9 This is a front view of the wheelset portion of the present invention;

[0026] Figure 10 This is a bottom perspective view of the driving wheel pair of the empty rail bogie in the utility model;

[0027] Figure 11 This is a bottom front view of the driving wheel pair empty rail bogie in the utility model;

[0028] Figure 12 This is a bottom left view of the driving wheel pair bogie of the utility model;

[0029] Figure 13 This is a top middle perspective view of the driving wheel pair empty rail bogie of the utility model;

[0030] Figure 14 This is a top middle front view of the driving wheel pair empty rail bogie of the utility model;

[0031] Figure 15 This is a left view of the top middle portion of the driving wheel pair empty rail bogie of the utility model;

[0032] Figure 16 This is a three-dimensional diagram of the connection structure of the driving wheel to the empty rail bogie in the utility model;

[0033] Figure 17 This is a front view of the connection structure of the driving wheel to the empty rail bogie in the utility model;

[0034] Figure 18This is a left view of the connection structure of the driving wheel to the empty rail bogie in the utility model;

[0035] Among them, 1 is the driving wheelset (1.1 is the gearbox, 1.2 is the wheelset, 1.3 is the wheelset drive device, 1.4 is the caliper and brake disc mechanism, 1.5 is the accumulator, 1.6 is the hydraulic unit, 1.7 is the auxiliary relief unit), 2 is the main body of the frame, 3 is the guide wheel, 4 is the suspension rod, 5 is the pillow block, 6 is the side roll stopper, 7 is the shock absorber, 8 is the traction rod, 9 is the suspension body, 10 is the lower open track, 11 is the spring seat, 12 is the motor mounting bracket, 13 is the guide wheel mounting bracket, 14 is the driving wheelset mounting seat, 15 is the traction rod mounting seat, 16 is the shock absorber mounting seat, 17 is the body support spring, and 18 is the buffer spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0037] like Figure 1 As shown in FIG18 , in certain embodiments, the driving wheel pair bogie designed by the present invention includes a frame assembly; a suspension assembly fixed to the lower part of the frame assembly for carrying the suspended vehicle body 9; a driving wheel pair 1 installed on the frame assembly for driving the frame assembly and the suspension assembly to move along the track; and a vehicle body vibration-damping connection structure connected to the lower part of the frame assembly for connecting the suspended vehicle body 9; the driving wheel pair 1 includes a wheelset 1.2 connected through a gearbox 1.1 and capable of rotating synchronously, and a wheelset driving device 1.3 fixed to the frame assembly, connected to the gearbox 1.1 and driving the wheelset 1.2 to rotate.

[0038] Example 1

[0039] Based on certain embodiments, the connection structure between the frame assembly and the drive wheelset 1 is optimized: the frame assembly includes a frame body 2, with at least one set of drive wheelset 1 symmetrically mounted on the front and rear sides of the frame body 2. The gearbox 1.1 of each drive wheelset 1 is connected to a wheelset drive device 1.3, preferably a motor. Motor mounting brackets are fixed to the front and rear sides of the frame body 2, and the wheelset drive device 1.3 is fixed to the motor mounting brackets of the frame body 2. The wheelset drive device 1.3 is connected to the gearbox 1.1 via a coupling, driving the wheelset 1.2 to rotate synchronously. An elastic buffer structure is provided between the gearbox 1.1 of each drive wheelset 1 and the frame body 2. The elastic buffer structure includes a buffer spring 18 fixed to the top of the gearbox 1.1 and a spring seat 11 fixed to the bottom of the front and rear sides of the frame body 2. The buffer spring 18 and the spring seat 11 cooperate to mitigate the up and down jolting of the drive wheelset 1. At the same time, the gearbox 1.1 is fixed to the drive wheelset mounting seat 14 of the frame body 2. The driving wheelset 1 also includes a caliper and brake disc mechanism 1.4 for braking the wheelset 1.2, an accumulator 1.5 for storing braking force, a hydraulic unit 1.6 and an auxiliary relief unit 1.7 for providing braking force. Since the accumulator 1.5, the hydraulic unit 1.6 and the auxiliary relief unit 1.7 are existing devices, they are not described here in detail. The accumulator 1.5, the hydraulic unit 1.6 and the auxiliary relief unit 1.7 are fixed in the middle of the frame caption 2.

[0040] Example 2

[0041] On the basis of Example 1, the guide structure of the frame body 2 is further optimized and designed: at least one pair of guide wheels are symmetrically arranged on the left and right sides of the frame body 2, and each pair of guide wheels includes two guide wheels 3 symmetrically arranged on the left and right sides of the frame body 2. The axial direction of the guide wheel 3 is arranged perpendicular to the axial direction of the wheelset 1.2. The guide wheel 3 is installed on the guide wheel mounting bracket 13 on the front and rear sides of the frame body 2. The guide wheel 3 can contact and roll with the middle inner surface of the lower open track 10 to assist the driving wheel pair empty rail bogie to move along the lower open track 10.

[0042] Example 3

[0043] Based on the above-described first or second embodiment, the structure of the suspension assembly is further optimized: the suspension assembly is arranged in the lower middle portion of the main frame 2, between the front and rear drive wheel pairs 1 of the main frame 2. The suspension assembly includes a suspension rod 4, the top of which is inserted into and fixed within the main frame 2, and a bolster 5 fixed to the bottom of the suspension rod 4. The top surface of the bolster 5 is provided with multiple elastic support structures for supporting the suspended vehicle body 9, preferably vehicle body support springs. Roll stops 6 are fixed to the left and right bottom surfaces of the main frame 2 to prevent the suspended vehicle body 9 from swaying and colliding with the bottom surface of the main frame 2, causing damage. The vehicle body vibration damping connection structure includes shock absorbers 7 symmetrically connected to the left and right sides of the main frame 2, and a traction rod 8 connected to the front or rear of the main frame 2.

[0044] Example 4

[0045] Based on some of the above embodiments or embodiment 1 or embodiment 2 or embodiment 3, a connection structure of a driving wheel to an empty rail bogie is designed, such as Figure 16 As shown in FIG18 , the vehicle body 9 includes a suspension vehicle body 9 and a lower open track 10. The wheelset 1.2 of the driving wheelset bogie is arranged on the lower open track 10. The suspension vehicle body 9 is supported on the suspension assembly. A vehicle body vibration-damping connection structure is connected between the suspension vehicle body 9 and the driving wheelset bogie.

[0046] The driving wheel pairs of this utility model utilize pneumatic tires on the open-rail bogie, resulting in minimal vehicle vibration. When moving within the open-rail track 10, no steel rails are required. The bogie's guidance is achieved through the cooperation of the guide wheels 3 with the inner surface of the center portion of the open-rail track 10. The vehicle has strong gradeability. The suspended car body 9 carries the cargo, while the two sets of driving wheel pairs provide power to the bogie, enabling smooth movement along the open-rail track 10, fulfilling the rail transport requirements for cargo.

[0047] In summary, the design of the driving wheel set in the present invention enables each wheel to better adapt to the curve changes of the track. When the empty track passes through a curve, it can effectively reduce the lateral slip and wear of the wheel set, improve the stability and safety of the vehicle's driving, and reduce the risk of derailment. It is especially suitable for the complex and changeable line layout of the empty track, and ensures the stability of the empty track system when running on curves with different curvatures. The suspension assembly is used to carry the suspension body, which can effectively buffer and absorb various vibrations and impacts from the track. Whether it is the unevenness of the track or the dynamic changes such as acceleration and deceleration during the operation of the vehicle, it can be effectively adjusted through the suspension system to provide a comfortable transportation environment for passengers or goods, and reduce equipment damage and cargo loss caused by vibration. The wheel set drive device is directly connected to the gearbox and drives the wheel set to rotate. This direct drive method can efficiently transmit power to the wheel set, reduce energy loss during power transmission, improve drive efficiency, and ensure that the empty track vehicle can obtain sufficient power to meet the needs of various operating conditions, such as starting, accelerating, climbing, and maintaining a stable operating speed. Connecting the synchronously rotating wheels through a gearbox ensures the synchronization of the two wheels during the driving process, avoiding problems such as vehicle deviation and rail gnawing caused by inconsistent wheel speeds, improving the vehicle's controllability and driving accuracy, and enabling the aerial rail vehicle to run accurately along the predetermined track line, which is conducive to the realization of automated driving and precise docking stations. The frame assembly serves as the core structural framework of the entire bogie, organically integrating key components such as the suspension assembly, drive wheels, and vehicle body vibration damping connection structure, making the connection between the components more stable and coordinated, which is conducive to the compact layout and lightweight design of the entire bogie. On the premise of meeting the strength and rigidity requirements of the aerial rail vehicle, it reduces the vehicle's own weight, reduces energy consumption, and improves transportation efficiency. It also facilitates the installation, maintenance, and inspection of the bogie. The car body vibration damping connection structure connects the suspension car body and the frame assembly, which can not only further attenuate the vibration transmitted from the track to the car body and improve the riding comfort of the passengers in the car, but also effectively compensate for the relative movement between the car body and the bogie caused by factors such as track deformation and vehicle dynamic displacement during vehicle operation, thereby ensuring the integrity and stability of the vehicle, preventing safety accidents caused by loosening or deformation of the connection parts, and extending the service life of the vehicle.

[0048] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. A driving wheel-to-rail bogie, characterized in that: It includes a frame assembly; a suspension assembly fixed to the lower part of the frame assembly and used to carry the suspension vehicle body (9); A driving wheel pair (1) mounted on a frame assembly and used to drive the frame assembly and the suspension assembly to move along a track; and a vehicle body vibration-damping connection structure connected to the lower portion of the frame assembly and used to connect to a suspension vehicle body (9); the driving wheel pair (1) comprises a wheel pair (1.2) connected via a gear box (1.1) and capable of synchronous rotation, and a wheel pair drive device (1.3) fixed to the frame assembly, connected to the gear box (1.1) and driving the wheel pair (1.2) to rotate.

2. The driving wheel-to-rail bogie according to claim 1, characterized in that: The frame assembly comprises a frame body (2), at least one set of the driving wheel pair (1) being symmetrically mounted on the front and rear sides of the frame body (2), the gear box (1.1) of each set of the driving wheel pair (1) being connected to a wheel pair driving device (1.3), and the wheel pair driving device (1.3) being fixed to the frame body (2).

3. The driving wheel-to-rail bogie according to claim 2, characterized in that: An elastic buffer structure is provided between the gear box (1.1) of each driving wheel pair (1) and the frame body (2).

4. The driving wheel-to-rail bogie according to claim 2, characterized in that: The driving wheel set (1) further comprises a caliper and brake disc mechanism (1.4) for braking the wheel set (1.2), an accumulator (1.5) for storing braking force, and a hydraulic unit (1.6) for providing braking force.

5. The driving wheel-to-rail bogie according to claim 2, characterized in that: At least one pair of guide wheels is symmetrically arranged on the left and right sides of the frame body (2), each pair of guide wheels includes two guide wheels (3) symmetrically arranged on the left and right sides of the frame body (2), the axial direction of the guide wheels (3) is arranged perpendicular to the axial direction of the wheelset (1.2), and the guide wheels (3) can roll in contact with the inner surface of the middle part of the lower open track (10) to assist the driving wheelset bogie to move along the lower open track (10).

6. The driving wheel-to-rail bogie according to claim 2, characterized in that: The suspension assembly is arranged at the lower part of the middle part of the frame body (2), and is located between the driving wheel pairs (1) on the front and rear sides of the frame body (2).

7. The driving wheel-to-rail bogie according to claim 6, characterized in that: The suspension assembly comprises a suspension rod (4) whose top is inserted into and fixed inside the frame body (2) and a bolster (5) fixed to the bottom of the suspension rod (4); a plurality of elastic support structures for supporting the suspension vehicle body (9) are arranged on the top surface of the bolster (5).

8. The driving wheel-to-rail bogie according to claim 7, characterized in that: The left and right bottom surfaces of the frame body (2) are both fixed with side rolling stops (6) for preventing the suspension vehicle body (9) from shaking left and right and colliding with the bottom surface of the frame body (2) to cause damage.

9. The driving wheel-to-rail bogie according to claim 2, characterized in that: The vehicle body vibration-damping connection structure comprises a vibration absorber (7) symmetrically connected to the left and right sides of the frame body (2), and a traction rod (8) connected to the front or rear of the frame body (2).

10. A connection structure of a driving wheel to an empty rail bogie according to any one of claims 1 to 9, comprising a suspension vehicle body (9) and a lower open rail (10), characterized in that: The wheel pair (1.2) of the driving wheel pair empty rail bogie is arranged on the lower open track (10), the suspension car body (9) is supported on the suspension assembly, and the car body vibration reduction connection structure is connected between the suspension car body (9) and the driving wheel pair empty rail bogie.

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