An aerial rail bogie and transport vehicle

Abstract

The application belongs to the technical field of air rail, and particularly relates to an air rail bogie and a transport vehicle. The bogie comprises a framework and a wheel pair assembly. The wheel pair assembly is arranged at the bottom of the framework to support the framework. The wheel pair assembly comprises an axle, wheels, bearing saddles and first elastic members. Two wheels are oppositely arranged at the two ends of the axle, and the wheels are metal wheels. Two bearing saddles are oppositely arranged on the axle, and the bearing saddles are respectively located at the inner sides of the wheels on the same side. The bearing saddles are supported at the bottom of the framework, and the first elastic members are arranged between the bearing saddles and the framework. The air rail bogie provided by the application has a small degree of wear and tear in long-term high-frequency operation, has a long service life, is more suitable for large-transport-amount, high-frequency and long-distance transport requirements, has high durability, avoids the defects of high maintenance cost of solid rubber wheels or pneumatic tires, reduces operation cost, and better meets market demand.

Description

Technical Field

[0001] This application belongs to the field of aerial rail technology, specifically relating to an aerial rail bogie and a transport vehicle. Background Technology

[0002] In related technologies, suspended aerial rail transport freight systems, whether for passenger or freight transport, generally adopt an open-beam design. This freight system uses solid rubber wheels or pneumatic tires as the running mechanism, which has good shock absorption and comfort performance. However, the rubber wheels wear out quickly, have a short service life, and have high maintenance costs throughout their entire life cycle. Summary of the Invention

[0003] This application provides an aerial rail bogie and a transport vehicle, aiming to at least partially solve the technical problems in related technologies where freight systems using solid rubber wheels or pneumatic tires as running gear have short service lives and high maintenance costs throughout their entire life cycle.

[0004] In a first aspect of this application, an aerial rail bogie is provided, the bogie comprising: a frame; a wheelset assembly disposed at the bottom of the frame to support the frame, the wheelset assembly comprising an axle, wheels, a bearing saddle, and a first elastic element, two wheels being disposed opposite to each other at both ends of the axle, the wheels being metal wheels, two bearing saddles being disposed opposite to each other on the axle, the bearing saddles being respectively located inside the wheels on the same side, the bearing saddles being supported at the bottom of the frame, and the first elastic element being disposed between the bearing saddle and the frame.

[0005] The aerial rail bogie provided in this application has metal wheels in its wheelsets, replacing the solid rubber wheels or pneumatic tires in related technologies. This results in less wear and tear during long-term, high-frequency operation, a longer service life, and is more suitable for high-volume, high-frequency, long-distance transportation needs. It also offers high durability and avoids the high maintenance costs associated with solid rubber wheels or pneumatic tires, thus reducing operating costs and better meeting market demands. Furthermore, the first elastic element located between the load-bearing saddle and the frame improves the bogie's shock absorption and comfort during operation, meeting the shock absorption requirements of aerial rail vehicles and demonstrating excellent practicality.

[0006] In some implementations, a bearing is provided between the load-bearing saddle and the axle.

[0007] In some embodiments, the bearing saddle has a mounting cavity that extends axially along the axle. The bearing is disposed within the mounting cavity. A first retaining ring is disposed between the outer end of the bearing and the wheel, and the first retaining ring is disposed on the axle. A retaining ring is fixedly disposed on the axle, and the retaining ring is correspondingly disposed with the bearing saddle. The retaining ring is disposed on the inner side of the corresponding bearing saddle. A second retaining ring is disposed between the bearing and the retaining ring, and the second retaining ring is disposed on the axle. The axial displacement of the bearing can be limited by the restriction of the first and second retaining rings.

[0008] In some implementations, a first mounting seat is provided at the top of the bearing saddle, and the first elastic member is disposed in the first mounting seat; a second mounting seat is provided at the bottom of the frame, the second mounting seat and the first mounting seat are correspondingly disposed, the second mounting seat is inserted into the corresponding first mounting seat, and the second mounting seat is supported on the first elastic member.

[0009] In some implementations, the first elastic element is a conical rubber spring to accommodate the vertical and lateral vibrations of the bogie.

[0010] In some implementations, shear plates are provided on both sides of the bearing saddle; the frame is provided with force transmission components, which are correspondingly provided with the bearing saddle, and the force transmission components include two opposing clamping plates, which are clamped to the outside of the shear plates on both sides of the corresponding bearing saddle.

[0011] In some embodiments, the frame includes two opposing side beams, the ends of which are bent downwards and are provided with tread brake mounting seats at their ends. The two ends of the two side beams are connected by end beams. The bogie also includes a tread brake mounted on the tread brake mounting seat, the output end of which is operably applied to the circumferential surface of the wheel.

[0012] In some embodiments, a top rail brake seat is also provided on the side beam; the bogie also includes a top rail brake, which is mounted on the top rail brake seat, and the output end of the top rail brake is operably applied to the top of the track on which the bogie runs.

[0013] In some embodiments, the middle portions of the two side beams are bent downward to form a load-bearing portion, and the load-bearing portions of the two side beams are connected by a crossbeam; the bogie also includes a suspension assembly, the upper end of which is connected to the middle portion of the crossbeam, and the lower end of which is used to suspend the vehicle body.

[0014] In some embodiments, the bogie further includes a drive assembly comprising: a bracket connected to the frame; a linear motor disposed on the bracket for cooperating with a sensor plate on the track to generate a driving force for moving the bogie; and a plurality of positioning wheels rotatably connected to the bracket, the circumferential surfaces of the positioning wheels making rolling contact with the track to allow an air gap between the linear motor and the track.

[0015] In some embodiments, multiple sets of transverse tie rod seats are provided on both sides of the width direction of the frame; multiple transverse tie rods are provided at the bottom of the bracket, the transverse tie rods are arranged along the width direction of the bracket, and the two ends of the transverse tie rods are respectively connected to the corresponding transverse tie rod seats.

[0016] In some embodiments, longitudinal tie rod seats are provided on both sides of the frame along its length; a longitudinal tie rod is provided at the bottom of the bracket, the longitudinal tie rod is arranged along the length of the bracket, and the two ends of the longitudinal tie rod are respectively connected to the longitudinal tie rod seats.

[0017] In some implementations, a plurality of third elastic elements are also provided at intervals between the bracket and the frame.

[0018] In a second aspect, this application also provides a transport vehicle comprising a car body and the aforementioned bogie, the car body running on a track via the bogie.

[0019] The transport vehicle equipped with the aforementioned aerial rail bogie has metal wheels in its wheelsets, replacing the solid rubber wheels or pneumatic tires used in related technologies. These metal wheels experience less wear during long-term, high-frequency operation, have a longer service life, and are more suitable for high-volume, high-frequency, and long-distance transport needs. They are also highly durable, avoiding the high maintenance costs associated with solid rubber wheels or pneumatic tires, thus reducing operating costs and better meeting market demands. Furthermore, the first elastic element located between the load-bearing saddle and the frame improves the vibration damping and comfort performance of the bogie during operation, meeting the vibration damping requirements of aerial rail vehicles and demonstrating excellent practicality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an aerial rail bogie according to one or more embodiments of this application is shown;

[0022] Figure 2 It shows Figure 1 A side view diagram;

[0023] Figure 3 It shows Figure 1 A schematic diagram of the structure consisting of wheelsets;

[0024] Figure 4 It shows Figure 3 A cross-sectional schematic diagram;

[0025] Figure 5 It shows Figure 1 A structural diagram of the framework in the diagram;

[0026] Figure 6 It shows Figure 5 A top-down view;

[0027] Figure 7 A schematic diagram of the brake being assembled on the frame is shown;

[0028] Figure 8 It shows Figure 1 A schematic diagram of the suspension assembly in the diagram;

[0029] Figure 9 It shows Figure 1 A schematic diagram of the assembly structure of the drive components on the architecture.

[0030] Explanation of reference numerals in the attached figures:

[0031] Frame-1, side beam-11, end beam-12, cross beam-13, second mounting base-14, force transmission component-15, clamping plate-151, tread brake mounting base-16, top rail brake base-17, transverse tie rod base-18, longitudinal tie rod base-19.

[0032] Wheelset assembly-2, axle-21, wheel-22, load-bearing saddle-23, first elastic element-24, bearing-25, first retaining ring-26, retaining ring-27, second retaining ring-28, first mounting base-29, shearing plate-210;

[0033] Tread brake -3;

[0034] Top rail brake -4;

[0035] Suspension assembly-5, center pin-51, bolster beam-52, first elastic element-53, pin cap-54, shock absorber-55, traction rod-56, roll stop-57;

[0036] Drive assembly-6, bracket-61, linear motor-62, positioning wheel-63, positioning wheel seat-64, transverse tie rod-65, longitudinal tie rod-66, third elastic element-67. Detailed Implementation

[0037] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] Currently, containers are widely used in port, logistics, and coal freight sectors. However, in actual transportation, they are often constrained by the distance of railway stations and the complex surrounding environment in some areas, requiring extensive truck transshipment, which leads to prominent issues such as congestion, pollution, inefficiency, and safety. Freight systems utilizing aerial rail transport have attracted widespread market attention and possess promising market prospects.

[0039] In related technologies, suspended aerial rail transport freight systems, whether for passenger or freight transport, generally adopt an open-beam design. This freight system uses solid rubber wheels or pneumatic tires as the running mechanism, which has good shock absorption and comfort performance. However, the rubber wheels wear out quickly, have a short service life, and have high maintenance costs throughout their entire life cycle.

[0040] Based on the above-mentioned technical problems, this application provides an aerial rail bogie and a transport vehicle, which aims to at least partially solve the technical problems in the related art where freight systems use solid rubber wheels or pneumatic tires as running mechanisms, resulting in short service life and high maintenance costs throughout the entire life cycle.

[0041] In a first aspect of this application, an aerial rail bogie is provided. Figure 1 A schematic diagram of the structure of an aerial rail bogie according to one or more embodiments of this application is shown. Figure 2 It shows Figure 1 A side view diagram. Combined with... Figure 1 as well as Figure 2 The bogie includes a frame 1 and a wheelset assembly 2, which is located at the bottom of the frame 1 to support the frame 1. Figure 3 It shows Figure 1 A schematic diagram of the wheelset structure in the diagram, combined with... Figure 3 The wheelset assembly 2 includes an axle 21, wheels 22, a support saddle 23, and a first elastic element 24. Two wheels 22 are disposed opposite to each other at both ends of the axle 21. The wheels 22 are metal wheels. Two support saddles 23 are disposed opposite to each other on the axle 21. The support saddles 23 are located inside the wheels 22 on the same side. The support saddles 23 are supported at the bottom of the frame 1. The first elastic element 24 is disposed between the support saddles 23 and the frame 1.

[0042] The aerial rail bogie provided in this application has two support saddles 23 on the axle 21 of the wheelset assembly 2. The support saddles 23 are supported at the bottom of the frame 1. When the frame 1 is driven, the wheels 22 of the wheelset assembly 2 can be positioned on the corresponding track by the support saddles 23. Since the wheels 22 of the wheelset assembly 2 are metal wheels, replacing the solid rubber wheels or pneumatic tires in related technologies, they have less wear and tear during long-term, high-frequency operation, longer service life, and are more suitable for large-volume, high-frequency, and long-distance transportation needs. They are also highly durable and avoid the high maintenance costs of using solid rubber wheels or pneumatic tires, thus reducing operating costs and better meeting market demands. In addition, the first elastic element 24 set between the support saddles 23 and the frame 1 improves the shock absorption and comfort performance of the bogie during operation, meeting the shock absorption requirements of the aerial rail vehicle and demonstrating good practicality.

[0043] In some embodiments, the metal wheel may be a steel wheel; in other embodiments, the metal wheel may also be made of an alloy material, and no limitation is made herein. Wheel 22 will now be described further as a steel wheel.

[0044] In the above embodiments, steel wheels exhibit high durability and long service life, with relatively low manufacturing and maintenance costs, better meeting market demands for transportation and maintenance costs. Especially in the freight sector, there are often no higher requirements for noise levels and comfort, and the need for steep ramps can be determined based on actual conditions without being mandatory. Therefore, for certain applications of aerial rail freight, transport vehicles using the bogies described in this application are better suited to market demands for operating costs.

[0045] In certain application scenarios, the operation of aerial rail systems faces harsh environments such as strong winds and sandstorms, large transport volumes, long gradients, and large temperature differences. For example, on one particular aerial rail line, there are 177 days a year with wind speeds exceeding level 8, 101 days exceeding level 10, and 67 days exceeding level 11, with the highest operating wind speed even reaching level 10; the annual transport volume is 15 million tons, and the number of operating days is 300 days per year; the line is 66km long, with an elevation difference of approximately 1800m and a maximum gradient of 60‰; the operating temperature difference reaches -25.5℃ to 48.0℃. Due to the inherent material and structural limitations of rubber wheels, using them as the running wheels for aerial railcars presents the following problems: poor heat dissipation; the longest continuous operation time in a single test is 30 minutes, requiring 5 minutes of heat dissipation, otherwise there is a risk of rubber cracking, peeling, or detachment; short service life; based on a transport capacity of 15 million tons and a distance of 66 km, the annual mileage of the vehicle is approximately 300,000 km, and the lifespan of the rubber wheel is only 3.2 months; low speed; the speed limit for heavy-duty wheels is 40 km / h; and high maintenance costs; based on a transport capacity of 15 million tons, the minimum comprehensive maintenance cost for solid rubber wheels is 74.62 million yuan / year, equivalent to 364,000 yuan / year per vehicle.

[0046] In addition, the use of rubber wheels will also have a certain impact on the aerial track beam, resulting in poor fatigue resistance of the aerial track beam, poor stress state of the rubber wheels, and high construction difficulty of the aerial track beam.

[0047] For example, for open-face beams, the pressure from the rubber wheels is eccentric, resulting in poor fatigue performance. This leads to an increase in the number of annular reinforcing ribs and stiffening ribs at the bottom of the running surface, resulting in more ineffective weight. Furthermore, wear and corrosion on the running surface cause the running plates to thin and become irreparable. Similarly, under the pressure of the running wheels, the lower-opening box girder tends to expand outwards, resulting in an inverted V-shape on the running surface. This causes a tendency for the inner side of the running wheels to become detached, while the pressure on the outer side increases, leading to increased wear on the wheels. On-site observation shows that there are more cracks on the outer side of the running wheels than on the inner side. In addition, the unevenness of the running surface and the high rigidity of the overall frame 1 cause significant load increases and decreases on the running wheels, also leading to increased wear. Furthermore, the aerial track beams not only face greater challenges in dimensional control but also in post-manufacturing adjustments. The manufacturing dimensions of the aerial track beams do not strictly conform to the design requirements, mainly because the lower-opening structure of the track beam results in lower beam rigidity, which is detrimental to dimensional control. After the lower-opening box girder is manufactured, adjustments are very difficult.

[0048] To address the aforementioned problems in aerial rail transport, this application proposes an inventive concept of using steel wheels as the running wheels of an aerial rail transport vehicle. Compared to transport vehicles using rubber wheels, steel wheels offer advantages such as better heat dissipation, higher load-bearing capacity, better wear resistance, higher speed, greater climbing ability, lower maintenance costs, longer service life, higher safety performance, and mature practical application. Furthermore, steel wheels can be used in conjunction with box girder structures, reducing the difficulty of constructing and adjusting the aerial rail beams. This makes aerial rail vehicles using steel wheels more suitable for applications requiring long distances, high speeds, high frequency, and low noise.

[0049] Furthermore, aerial rail transport systems using steel wheels offer superior economic advantages, as analyzed below:

[0050] Solid rubber tires: Assuming a single tire cost of 40,000 yuan and a rim lifespan of 5 years, the average purchase cost per vehicle is 4 * 8 / 5 = 64,000 yuan per year, and the total rim cost for all vehicles is 64,000 * 205 = 13.12 million yuan per year. The rubber tires need to be replaced every 80,000 kilometers, with a replacement cost of 10,000 yuan per tire. Assuming a single vehicle's mileage is 300,000 kilometers per year, each vehicle needs to replace its tires 3.75 times per year, resulting in a rubber vulcanization cost of 1 * 8 * 3.75 = 300,000 yuan per vehicle per year. Based on a total of 205 vehicles, the total tire replacement cost for all vehicles is 300,000 * 205 = 61.5 million yuan per year. The total cost is 74.62 million yuan per year.

[0051] Pneumatic tires: Assuming a cost of 0.5 million per tire and a replacement interval of 100,000 kilometers, each vehicle needs to replace its tires 3 times per year. The cost of 22 tires per vehicle is 0.5 * 8 * 3 = 120,000 per year. Based on a total of 205 vehicles, the total cost of replacing tires for all vehicles is 12 * 205 = 24.6 million per year. Assuming a rim lifespan of 5 years, the cost is 0.5 * 8 / 5 = 0.8 million per vehicle per year. The total cost of replacing rims for all vehicles is 0.8 * 205 = 1.64 million per year. The total cost is 26.24 million per year.

[0052] Steel wheels: Based on a track cost of 1.24 million RMB / km (40 years), the track cost is 1.24 * 66 * 2 = 163.68 million RMB, averaging 4.092 million RMB per year. Assuming a steel wheel lifespan of 2.4 million km, it needs to be replaced every 8 years. With a steel wheel cost estimated at 0.34 million RMB / wheel, the cost per wheel is approximately 0.34 * 8 / 8 = 0.34 million RMB per year, for a total wheel replacement cost of 0.34 * 205 = 697,000 RMB per year. Assuming a re-repair cost of 0.12 million RMB per 150,000 km, the annual re-repair cost per wheel is 0.12 * 8 * 2 = 1.92 million RMB per year, for a total re-repair cost of 1.92 * 205 = 3.936 million RMB per year. The total cost is 8.725 million RMB per year.

[0053] As can be seen from the above, if the steel wheels of this application embodiment are used, with a single wheel cost estimated at 25,000, the total cost would be 13,153,000 per year. In summary, although the initial investment in the track is larger when using steel wheels, the steel wheels have a longer service life and lower procurement and maintenance costs, resulting in a lower overall cost over their life cycle compared to solid rubber wheels and pneumatic wheels.

[0054] Figure 4 It shows Figure 3 A cross-sectional schematic diagram, combined with Figure 3 as well as Figure 4 A bearing 25 can be provided between the bearing saddle 23 and the axle 21 so that the axle 21 can rotate relative to the bearing saddle 23.

[0055] Combination Figure 3 as well as Figure 4 In specific implementation, an installation cavity can be provided in the bearing saddle 23, which extends through the axial direction of the axle 21. The bearing 25 is installed in the installation cavity, and a first retaining ring 26 is provided between the outer end of the bearing 25 and the wheel 22. The first retaining ring 26 is installed on the axle 21. A retaining ring 27 is fixedly installed on the axle 21, and the retaining ring 27 is correspondingly provided with the bearing saddle 23. The retaining ring 27 is located on the inner side of the corresponding bearing saddle 23. A second retaining ring 28 is provided between the bearing 25 and the retaining ring 27. The second retaining ring 28 is installed on the axle 21. The axial displacement of the bearing 25 can be restricted by the restriction of the first retaining ring 26 and the second retaining ring 28.

[0056] In some embodiments, the retaining ring 27 may be fixedly mounted on the axle 21, and the first retaining ring 26 and the second retaining ring 28 may be movably mounted on the axle 21, without limitation.

[0057] Figure 5 It shows Figure 1 A structural diagram of the framework. Combined with... Figure 3 as well as Figure 5 The top of the load-bearing saddle 23 is provided with a first mounting seat 29, and the first elastic member 24 is disposed in the first mounting seat 29; the bottom of the frame 1 is provided with a second mounting seat 14, which is correspondingly disposed with the first mounting seat 29. The second mounting seat 14 is inserted into the corresponding first mounting seat 29 so that the second mounting seat 14 is supported on the first elastic member 24 and the load of the frame 1 is transferred to the wheelset assembly 2.

[0058] In some embodiments, the first elastic element 24 may be a conical rubber spring, thereby accommodating vertical and lateral vibrations generated when the bogie is running on the track.

[0059] Combination Figure 3 as well as Figure 5Both sides of the bearing saddle 23 are provided with shear plates 210. Correspondingly, the frame 1 is provided with a force transmission component, which is arranged correspondingly to the bearing saddle 23. The force transmission component includes two opposing clamping plates 151, which are clamped to the outside of the shear plates 210 on both sides of the corresponding bearing saddle 23. In implementation, when the frame 1 is driven to run, the driving force can be transmitted to the bearing saddle 23 through the clamping and shearing plates 210 to position the wheels 22 of the wheelset assembly 2 to run on the corresponding track.

[0060] Figure 6 It shows Figure 5 A top-down view diagram, combined with Figure 5 as well as Figure 6 The frame 1 serves as the supporting foundation for the various components of the bogie. It may include side beams 11, end beams 12, and crossbeams 13. Two side beams 11 are arranged opposite each other, their ends connected by end beams 12, and their middle sections connected by crossbeams 13, forming a frame structure. The side beams 11, end beams 12, and crossbeams 13 constituting the frame 1 can be connected by welding or by a combination of welding and bolts to improve the reliability of the frame 1 during operation. The aforementioned second mounting base 14 and force transmission components can both be located at the bottom of the side beams 11, with two clamping plates 151 of the force transmission components located on both sides of the second mounting base 14.

[0061] Figure 7 A schematic diagram of the brake being assembled on the frame is shown. (Combined) Figures 5-7 The end of the side beam 11 can be bent downward to form a gooseneck shape. A tread brake mounting seat 16 is provided at the end of the side beam 11. The bogie also includes a tread brake 3, which is mounted on the tread brake mounting seat 16. The output end of the tread brake 3 operably acts on the circumferential surface of the wheel 22. When the bogie needs to stop, the output end of the tread brake 3 can be extended and act on the circumferential surface of the wheel 22 to achieve the purpose of braking the bogie.

[0062] In some embodiments, the bogie has two wheelsets 2, and correspondingly, four tread brakes 3 are provided. During braking, the output end of each tread brake 3 can act on the circumferential surface of the corresponding wheel 22 to improve the braking effect on the bogie. In other embodiments, only the two wheels 22 of one wheelset 2 can be braked, that is, tread brakes 3 are installed only at the same end of the two side beams 11, and the output ends of the two tread brakes 3 act on the two wheels 22 of one wheelset 2 to achieve braking of the bogie.

[0063] Because the tread braking scheme adopted in this application embodiment can reduce braking costs and is more suitable for freight train transportation, in addition, compared with the wheel disc braking method, it can save the lateral space at the steel wheel axle, and has lower requirements for the inner width of the track, thus reducing the construction cost of the track.

[0064] Combination Figure 5 as well as Figure 7 Each side beam 11 is also equipped with a top rail brake seat 17. Correspondingly, the bogie also includes a top rail brake 4, which is mounted on the top rail brake seat 17. The output end of the top rail brake 4 is operably applied to the top of the track on which the bogie runs. When the bogie needs to stop running, the output end of the tread brake 3 can be controlled to extend and apply to the top of the track, thereby achieving the purpose of braking the bogie.

[0065] In some embodiments, the bogie is equipped with four top rail brakes 4, with two top rail brakes 4 corresponding to each side beam 11. During braking, the output end of each top rail brake 4 can act on the top of the rail to improve the braking effect on the bogie. In other embodiments, only one or three equal numbers of top rail brakes 4 may be provided on each side beam 11, without limitation.

[0066] The bogie shown in this embodiment can improve the braking effect of the bogie by using the tread brake 3 and the top rail brake 4 in combination, which can avoid the phenomenon that the bogie cannot be braked due to the failure of one of the brakes.

[0067] Combination Figure 1 , Figure 2 as well as Figures 5-7 The middle of the two side beams 11 bends downward to form a load-bearing part. The load-bearing parts of the two side beams 11 are connected by a crossbeam 13. The bogie also includes a suspension assembly 5. The upper end of the suspension assembly 5 is connected to the middle of the crossbeam 13, and the lower end of the suspension assembly 5 is used to suspend the car body.

[0068] Figure 8 It shows Figure 1 The structural diagram of the suspension assembly in the diagram, combined with Figure 8The suspension assembly 5 includes a center pin 51 and a bogie beam 52. The upper end of the center pin 51 is suspended from the middle of the crossbeam 13 via a pin cap 54, and the lower end of the center pin 51 passes through the car body. The bogie beam 52 is attached to the bottom of the center pin 51, and the car body is supported on the bogie beam 52. Multiple second elastic elements 53 are provided on the bogie beam 52 to contact the bottom of the car body, thereby reducing vibration during vehicle operation and improving comfort. A shock absorber 55 can be installed between the pin cap 54 and the car body to accommodate vibrations not only from vertical conditions but also from the lateral roll motion of the elevated rail vehicle. Additionally, the suspension assembly 5 may also include a traction rod 56 and a roll stop 57 to support the bogie's operation and improve operational reliability.

[0069] Combination Figure 1 as well as Figure 2 The bogie also includes a drive assembly 6. Figure 9 It shows Figure 1 A schematic diagram of the assembly structure of the drive components on the architecture, combined with Figure 9 The drive assembly 6 includes a bracket 61, a linear motor 62, and positioning wheels 63. The bracket 61 is connected to the frame 1, and the linear motor 62 is mounted on the bracket 61 to cooperate with the induction plate on the track to generate a driving force to move the bogie. Multiple positioning wheels 63 are rotatably connected to the bracket 61, and the circumferential surface of the positioning wheels 63 makes rolling contact with the track to create an air gap between the linear motor 62 and the track.

[0070] In specific implementation, the linear motor 62 cooperates with the induction plate on the track to generate a driving force that moves the bogie. This driving force is transmitted to the frame 1, and then to the wheelset assembly 2 through the force transmission element on the frame 1, thereby driving the wheels 22 to run on the track. In some embodiments, positioning wheel seats 64 can be provided at both ends of the side portion of the bracket 61 along its length. Positioning wheels 63 are rotatably mounted on the corresponding positioning wheel seats 64. The circumferential surface of the positioning wheels 63 makes rolling contact with the track located on top of the bogie, so that the linear motor 62 and the track have sufficient air gap to generate the required magnetic drive force.

[0071] Combination Figure 5 as well as Figure 9Multiple sets of transverse tie rod seats 18 are provided on both sides of the width direction of the frame 1. The transverse tie rod seats 18 can be installed on the side beams 11. Multiple transverse tie rods 65 are provided at the bottom of the bracket 61. The transverse tie rods 65 are arranged along the width direction of the bracket 61, and their two ends are respectively connected to the corresponding transverse tie rod seats 18 to fix the bracket 61 to the component. In addition, longitudinal tie rod seats 19 are provided on both sides of the length direction of the frame 1. The longitudinal tie rod seats 19 can be installed on the end beams 12. A longitudinal tie rod 66 is provided at the bottom of the bracket 61. The longitudinal tie rod 66 is arranged along the length direction of the bracket 61, and its two ends are respectively connected to the longitudinal tie rod seats 19. Through the arrangement of transverse tie rods 65 and longitudinal tie rods 66, the bracket 61 can be stably assembled onto the frame 1.

[0072] In addition, combined Figure 9 Multiple third elastic elements 67 are also spaced apart between the bracket 61 and the frame 1 to improve the shock absorption and comfort performance of the bogie during operation, meeting the shock absorption requirements of the aerial rail vehicle. In some embodiments, the multiple third elastic elements 67 can be vertical springs, which are mounted on the bottom of the bracket 61. In other embodiments, the multiple third elastic elements 67 can also be mounted on the top of the side beam 11 of the frame 1, without limitation.

[0073] In a second aspect of this application, embodiments of this application also provide a transport vehicle, which includes a vehicle body and the aforementioned bogie, the vehicle body running on a track via the bogie.

[0074] In specific implementation, the track applicable to the bogie can be a lower open track beam. The wheels 22 of the bogie wheelset 2 travel on both sides of the bottom track of the track beam. The positioning wheel 63 of the bogie drive assembly 6 contacts the top track of the track beam. The lower end of the suspension assembly passes through the opening of the track beam and is connected to the car body.

[0075] The transport vehicle equipped with the aforementioned aerial rail bogie has metal wheels 22 of the wheelset assembly 2 of the bogie, replacing solid rubber wheels or pneumatic tires in related technologies. These metal wheels experience less wear during long-term, high-frequency operation, have a longer service life, and are more suitable for high-volume, high-frequency, and long-distance transport needs. They are also highly durable, avoiding the high maintenance costs associated with solid rubber wheels or pneumatic tires, thus reducing operating costs and better meeting market demands. Furthermore, the first elastic element 24, located between the bearing saddle 23 and the frame 1, improves the shock absorption and comfort performance of the bogie during operation, meeting the shock absorption requirements of aerial rail vehicles and demonstrating excellent practicality.

[0076] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0078] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0079] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0080] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerial rail bogie, characterized in that, The bogie includes: Framework; A wheelset assembly is disposed at the bottom of the frame to support the frame. The wheelset assembly includes an axle, wheels, a load-bearing saddle, and a first elastic element. Two wheels are disposed opposite to each other at both ends of the axle. The wheels are metal wheels. Two load-bearing saddles are disposed opposite to each other on the axle. The load-bearing saddles are respectively located inside the wheels on the same side. The load-bearing saddles support the bottom of the frame. The first elastic element is disposed between the load-bearing saddles and the frame. The frame includes two opposing side beams, the ends of which are bent downwards and are provided with tread brake mounting seats at their ends. The two ends of the two side beams are connected by end beams. The bogie also includes a tread brake, which is mounted on the tread brake mounting base, and the output end of the tread brake is operably applied to the circumferential surface of the wheel. The bogie also includes a drive assembly, which comprises: Bracket, connected to the frame; A linear motor, mounted on the bracket, is used to cooperate with the induction plate on the track to generate a driving force to move the bogie. Multiple positioning wheels are rotatably connected to the bracket, and the circumferential surface of the positioning wheels makes rolling contact with the track so that the linear motor and the track have an air gap; Multiple sets of transverse tie rod seats are provided on both sides of the width direction of the frame; The bottom of the bracket is provided with multiple horizontal tie rods, which are arranged along the width direction of the bracket, and the two ends of the horizontal tie rods are respectively connected to the corresponding horizontal tie rod seats; Longitudinal tie rod seats are provided on both sides of the length direction of the frame; The bottom of the bracket is provided with a longitudinal tie rod, which is arranged along the length of the bracket, and the two ends of the longitudinal tie rod are respectively connected to the longitudinal tie rod seat; Multiple third elastic elements are also provided at intervals between the bracket and the frame.

2. The aerial rail bogie according to claim 1, characterized in that, A bearing is provided between the load-bearing saddle and the axle.

3. The aerial rail bogie according to claim 2, characterized in that, The bearing saddle is provided with an installation cavity, which extends through the axial direction of the axle. The bearing is disposed in the installation cavity, and a first retaining ring is disposed between the outer end of the bearing and the wheel. The first retaining ring is disposed on the axle. A retaining ring is fixedly installed on the axle, and the retaining ring and the bearing saddle are correspondingly installed. The retaining ring is installed on the inner side of the corresponding bearing saddle. A second retaining ring is installed between the bearing and the retaining ring, and the second retaining ring is installed on the axle.

4. The aerial rail bogie according to any one of claims 1-3, characterized in that, The top of the bearing saddle is provided with a first mounting seat, and the first elastic element is disposed in the first mounting seat; The bottom of the frame is provided with a second mounting base, which is correspondingly provided with the first mounting base. The second mounting base is inserted into the corresponding first mounting base and is supported on the first elastic member.

5. The aerial rail bogie according to claim 4, characterized in that, The first elastic element is a conical rubber spring.

6. The aerial rail bogie according to claim 5, characterized in that, Shear plates are provided on both sides of the load-bearing saddle; The frame is provided with a force transmission component, which is correspondingly provided with the bearing saddle. The force transmission component includes two opposing clamping plates, which are clamped to the outside of the shearing plates on both sides of the corresponding bearing saddle.

7. The aerial rail bogie according to claim 1, characterized in that, The side beam is also equipped with a top rail brake seat; The bogie also includes a top rail brake, which is mounted on the top rail brake seat and whose output end is operable to act on the top of the track on which the bogie runs.

8. The aerial rail bogie according to claim 1, characterized in that, The middle portions of the two side beams are bent downwards to form a load-bearing portion, and the load-bearing portions of the two side beams are connected by a crossbeam; The bogie also includes a suspension assembly, the upper end of which is connected to the middle of the crossbeam, and the lower end of which is used to suspend the car body.

9. The aerial rail bogie according to claim 8, characterized in that, The suspension assembly includes a center pin and a bolster beam. The upper end of the center pin is suspended from the middle of the crossbeam by a pin cap, and the lower end of the center pin passes through the vehicle body. The bolster beam is hung at the bottom of the center pin, and the vehicle body is supported on the bolster beam. Multiple second elastic elements are provided on the bolster beam for contacting the bottom of the vehicle body.

10. A transport vehicle, characterized in that, The transport vehicle includes a car body and a bogie as described in any one of claims 1-9, the car body running on a track via the bogie.

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