Driving wheel pair sky rail bogie and connecting structure thereof

Abstract

The invention 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. By means of the design of the driving wheel pairs, each wheel can better adapt to curve changes of the track, when the sky rail passes through a curve, transverse sliding 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 invention relates to the technical field of rail transportation systems, and in particular to a driving wheel pair empty rail bogie and a connection structure thereof. Background Art

[0002] At present, the development level of multimodal transport in my country is low, and it has long relied on road transport. There are significant problems such as poor coordination between road, rail and water transport, poor market environment, mismatch of regulations and standards, and slow application of advanced technologies. In the field of freight, although containers have been widely used in ports, logistics, coal, etc., due to the long distance between railway stations and the complex surrounding environment in some areas, actual transportation often relies on a large number of container trucks for transshipment, resulting in frequent congestion, pollution, inefficiency and safety hazards. In this context, the freight system of aerial rail transport has attracted much attention from the market because it can effectively avoid these problems and has a good market prospect.

[0003] Existing suspended monorail systems, whether passenger or freight, usually use open rail beams. The vehicle running system is equipped with solid rubber wheels or pneumatic tires. This design gives the system excellent vibration reduction characteristics and a comfortable ride experience, and ensures the stability and reliability of the aerial rail transportation system during operation from a structural level, laying the foundation for the smooth transportation of goods.

[0004] However, the aerial rail transportation system is not perfect. Its track construction cost is relatively high, and a large amount of initial capital investment is required 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, it involves maintenance work in many aspects such as aerial tracks, vehicle running devices and related control systems, which requires high requirements for professional technicians and maintenance equipment, and the maintenance cost is relatively high. In addition, the transportation capacity of the system is limited to a certain extent by the design of tracks and vehicles. It is difficult to transport ultra-heavy goods on a large scale like traditional railway transportation, and it may be unable to cope with the transportation needs of large-volume and long-distance specific goods. In addition, its line planning is relatively fixed and less flexible. Once built, it is difficult to quickly adjust and expand according to changes in actual transportation needs. Summary of the invention

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

[0006] To achieve this purpose, the driving wheel pair empty rail bogie designed by the present invention 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 reduction 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 can rotate synchronously, 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 are symmetrically installed on the front and rear sides of the frame body, and the gear box 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 wheelset 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 plurality of elastic support structures for supporting the suspension body are arranged on the top surface of the pillow beam.

[0013] Furthermore, the bottom surfaces of the left and right sides 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 comprises 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 pair 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, the lateral slip and wear of the wheel pair can be effectively reduced, the stability and safety of the vehicle driving can be improved, and the risk of derailment can be reduced. It is particularly suitable for the complex and changeable line layout of the empty track, and the stability of the empty track system when running on curves with different curvatures is guaranteed. 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 pair drive device is directly connected to the gearbox and drives the wheel pair to rotate. This direct drive method can efficiently transfer power to the wheel pair, reduce energy loss during power transmission, improve driving 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. The synchronously rotating wheels are connected through a gearbox to ensure 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 sky-high 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, as the core structural framework of the entire bogie, organically integrates key components such as the suspension assembly, driving wheels, and body vibration reduction 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 stiffness requirements of the sky-high rail vehicle, it reduces the vehicle's own weight, reduces energy consumption, and improves transportation efficiency. It also facilitates the installation, maintenance and overhaul of the bogie. The car body vibration reduction 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 looseness or deformation of the connection parts, and extending the service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the driving wheel pair of the empty rail bogie of the present invention;

[0018] Figure 2 It is a front view of the driving wheel pair empty rail bogie in the present invention;

[0019] Figure 3 It is a left side view of the driving wheel pair empty rail bogie of the present invention;

[0020] Figure 4 It is a front view of the main frame of the present invention;

[0021] Figure 5 A top view of the main frame of the present invention;

[0022] Figure 6 It is a left side view of the main frame of the present invention;

[0023] Figure 7 It is a three-dimensional diagram of the wheelset part of the present invention;

[0024] Figure 8 A top view of the wheelset portion of the present invention;

[0025] Fig. 9 It is a front view of the wheelset part of the present invention;

[0026] Fig.10 The bottom perspective view of the driving wheel pair empty rail bogie of the present invention;

[0027] Fig.11 The bottom front view of the driving wheel pair empty rail bogie of the present invention;

[0028] Fig.12 It is a bottom left view of the driving wheel pair empty rail bogie of the present invention;

[0029] Fig.13 It is a top middle stereoscopic view of the driving wheel pair of the empty rail bogie of the present invention;

[0030] Fig.14 It is a front view of the top middle part of the driving wheel pair empty rail bogie of the present invention;

[0031] Fig.15 It is a left view of the top middle part of the driving wheel pair empty rail bogie of the present invention;

[0032] Fig.16 It is a three-dimensional diagram of the connection structure of the driving wheel to the empty rail bogie in the present invention;

[0033] Fig.17 This is a front view of the connection structure of the driving wheel to the empty rail bogie in the present invention;

[0034] Fig.18 It is a left view of the connection structure of the driving wheel to the empty rail bogie in the present invention;

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

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

[0037] like Figure 1 As shown in FIG. 18, in certain embodiments, the driving wheel pair empty rail bogie designed by the present invention includes a frame assembly; a suspension assembly fixed to the lower part of the frame assembly and used to carry the suspended car body 9; a driving wheel pair 1 installed on the frame assembly and used to drive the frame assembly and the suspension assembly to move along the track; and a car body vibration reduction connection structure connected to the lower part of the frame assembly and used to connect the suspended car body 9; the driving wheel pair 1 includes a wheel pair 1.2 connected through a gear box 1.1 and can rotate synchronously, and a wheel pair driving device 1.3 fixed on the frame assembly, connected to the gear box 1.1 and driving the wheel pair 1.2 to rotate.

[0038] Embodiment 1

[0039] On the basis of certain embodiments, the connection structure between the frame assembly and the driving wheel pair 1 is optimized and designed: the frame assembly includes a frame body 2, at least one set of driving wheel pairs 1 are symmetrically installed on the front and rear sides of the frame body 2, each set of driving wheel pairs 1 is connected to a wheel pair drive device 1.3, and the wheel pair drive device 1.3 is preferably a motor, and the front and rear sides of the frame body 2 are respectively fixed with motor mounting brackets, and the wheel pair drive device 1.3 is fixed on the motor mounting bracket of the frame body 2. The wheel pair drive device 1.3 is connected to the gear box 1.1 through a coupling, and the driving wheel pair 1.2 rotates synchronously. An elastic buffer structure is arranged between the gear box 1.1 of each driving wheel pair 1 and the frame body 2, which includes a buffer spring 18 fixed to the top of the gear box 1.1 and a spring seat 11 fixed to the bottom of the front and rear sides of the frame body 2. The up and down bumps of the driving wheel pair 1 are alleviated by the cooperation of the buffer spring 18 and the spring seat 11. At the same time, the gear box 1.1 is fixed on the driving wheel pair 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] Embodiment 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 roll in contact 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] Embodiment 3

[0043] Based on the above-mentioned embodiment 1 or 2, the structure of the suspension assembly is further optimized and designed: the suspension assembly is arranged in 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. The suspension assembly includes a suspension rod 4 inserted at the top and fixed inside the frame body 2 and a bolster 5 fixed at the bottom of the suspension rod 4. The top surface of the bolster 5 is arranged with a plurality of elastic support structures for supporting the suspension body 9, and the elastic support structure is preferably a body support spring. The bottom surfaces of the left and right sides of the frame body 2 are fixed with side roll stops 6 for preventing the suspension body 9 from shaking left and right and colliding with the bottom surface of the frame body 2 to cause damage. The body vibration reduction connection structure includes shock absorbers 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.

[0044] Embodiment 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 Fig.16 As shown in FIG. 18 , the suspension car body 9 and the lower open track 10 are included. The wheelset 1.2 of the driving wheelset empty rail bogie is arranged on the lower open track 10. The suspension car body 9 is supported on the suspension assembly. A car body vibration reduction connection structure is connected between the suspension car body 9 and the driving wheelset empty rail bogie.

[0046] The driving wheel pair designed in the present invention adopts pneumatic tires, the vehicle has small vibration, and when moving in the lower open track 10, there is no need to lay rails, and the guiding function of the bogie can be achieved through the cooperation between the guide wheel 3 and the inner surface of the middle part of the lower open track 10. The vehicle has strong climbing ability, the suspended car body 9 carries the goods, and the two sets of driving wheel pairs provide power for the bogie, so that the bogie can move smoothly along the lower open track 10, realizing the rail transportation needs of the goods.

[0047] In summary, the design of the driving wheel pair 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, the lateral slip and wear of the wheel pair can be effectively reduced, the stability and safety of the vehicle driving can be improved, and the risk of derailment can be reduced. It is particularly suitable for the complex and changeable line layout of the empty track, and the stability of the empty track system when running on curves with different curvatures is guaranteed. 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 pair drive device is directly connected to the gearbox and drives the wheel pair to rotate. This direct drive method can efficiently transfer power to the wheel pair, reduce energy loss during power transmission, improve driving efficiency, and ensure that the empty track vehicle can obtain enough power to meet the needs of various operating conditions, such as starting, accelerating, climbing, and maintaining a stable operating speed. The synchronously rotating wheels are connected through a gearbox to ensure 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 sky-high 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, as the core structural framework of the entire bogie, organically integrates key components such as the suspension assembly, driving wheels, and body vibration reduction 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 stiffness requirements of the sky-high rail vehicle, it reduces the vehicle's own weight, reduces energy consumption, and improves transportation efficiency. It also facilitates the installation, maintenance and overhaul of the bogie. The car body vibration reduction 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 looseness or deformation of the connection parts, and extending the service life of the vehicle.

[0048] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A driving wheel-to-rail bogie, characterized in that: It comprises a frame assembly; a suspension assembly fixed to the lower part of the frame assembly and used for carrying a 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 reduction connection structure connected to the lower part 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 driving device (1.3) fixed on the frame assembly, connected to the gear box (1.1) and driving the wheel pair (1.2) to rotate.

2. The driving wheel-to-empty 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 on the frame body (2).

3. The driving wheel-to-empty 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) also includes 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-empty rail bogie according to claim 2, characterized in that: At least one pair of guide wheels are symmetrically arranged on the left and right sides of the frame body (2), each pair of guide wheels comprises 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 empty rail bogie to move along the lower open track (10).

6. The driving wheel-to-empty 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) at 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 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 swaying left and right and from colliding with the bottom surface of the frame body (2) and causing 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 as claimed in any one of claims 1 to 9, comprising a suspension vehicle body (9) and a lower open track (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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