Underground rail transit transportation system and method

Abstract

The invention discloses an underground rail transit transportation system and method, the underground rail transit transportation system comprises a passenger transport system and a freight transport system, and the passenger transport system and the freight transport system share a rail transit station; the freight transport system comprises a civil engineering supporting structure used for constructing a cargo transport space in a rail transit station space; the cargo guide rail subsystem is used for forming a cargo transportation path; and the goods transportation subsystem is used for transporting the goods from the starting position to the ending position. According to the technical scheme, on the premise that civil engineering design of an existing passenger transportation urban rail transit station is not greatly changed, traditional space can be fully utilized to efficiently achieve passenger and freight mixed use of the urban rail transit station, a good channel is provided for urban logistics transportation, and intensive, green and efficient urban physical system construction is assisted.

Description

Technical Field

[0001] This application relates to the field of urban rail transit construction technology, specifically to an underground rail transit system and method. Background Technology

[0002] With the continuous upgrading of my country's railway intelligent operation and maintenance equipment and facilities, intelligent inspection robots have gradually become important equipment for improving maintenance quality and efficiency. Through automated robot technology and image recognition processing technology, the automation and intelligence of daily inspection work are gradually realized.

[0003] Currently, the detection equipment used in tunnel inspection is mostly intelligent inspection equipment. However, these devices typically cannot move automatically and still require manual control of their movement, resulting in low inspection efficiency. Furthermore, these devices are usually paired with image recognition detection solutions, but the acquired image information still needs to be recognized and analyzed before the tunnel condition can be confirmed, further reducing inspection efficiency. Additionally, in tunnels with poor lighting conditions, image detection may fail to identify effective information, which also poses an obstacle to tunnel inspection.

[0004] Therefore, how to improve the efficiency of tunnel inspection while ensuring the quality of tunnel inspection has become a problem that needs to be solved in this field. Summary of the Invention

[0005] In view of this, in a first aspect, this application proposes an underground rail transit system, characterized in that the underground rail transit system comprises: A passenger transport system and a freight transport system, which share a single rail transit station; wherein the freight transport system includes: Civil engineering support structure, used to construct cargo transport space within the rail transit station space; Cargo guide rail subsystem, used to form cargo transportation paths; The cargo transportation subsystem is used to transport cargo from the starting location to the ending location.

[0006] Preferably, the cargo transport space includes one or more of the following: horizontal, vertical, and diagonal transport spaces.

[0007] Preferably, the cargo guide rail subsystem includes: Guide rails are installed within the cargo transport space along the cargo transport path.

[0008] More preferably, the cargo transportation subsystem includes: A transmission assembly is disposed in the guide rail and the cargo is fixed thereon; The power component provides rotational power to the transmission component.

[0009] Further optimization: The guide rail includes: track; A rack is disposed in the rail surface of the track; The transmission assembly includes: Gear, meshing with the rack; A drive shaft is connected to the rotation shaft of the gear on the outside of the gear; The cargo securing part is connected to the rotation shaft of the gear on the inner side of the gear and is used to secure the cargo. The power assembly includes: An electric motor is connected to the drive shaft, and provides rotational power to the gear through the drive shaft; The gear rotates under the drive of the motor and moves along the track direction in the rack, thereby driving the cargo fixed in the cargo fixing part to move along the track direction.

[0010] Further optimization: The guide rails are configured as a pair, each guide rail being equipped with the transmission assembly and the power assembly; The cargo securing part includes: A gear engaging rod is connected to the rotation shaft of the gear on the inner side of the gear; A connecting rod is positioned between the gear meshing rods on the two inner sides of a pair of rails; A roller is provided in the connecting rod, and the goods are suspended in the connecting rod by the roller.

[0011] More preferably, the guide rail includes: a straight section guide rail and a curved section guide rail; The rack is configured with a fixed pitch in the straight section of the guide rail. The rack is configured with a non-fixed pitch in the curved section guide rail.

[0012] More preferably, a limit mechanism is provided on the inner side of the track in the curved section guide rail; When the rack moves on the curved section guide rail, the outer side of the rack is fixed, and the inner side of the rack slides in the opposite direction of transport under the action of the gear sliding horizontal force, and the sliding distance is limited by the limiting mechanism.

[0013] More preferably, the limiting mechanism includes: a starting pin, a control rod, a stopping pin, a spring, and a fixing block; One end of the control rod is fixed to the inside of the rack, and the other end is disposed between the starting pin and the ending pin; The fixing block is fixed at a preset position inside the rack of the curved section guide rail, and is connected to the control rod through the spring; When the rack moves on the curved section guide rail, the outer side of the rack on the curved section guide rail is fixed, and the inner side slides in the opposite direction of transportation under the action of the horizontal sliding force of the gear, driving the control rod to slide from the position of the starting pin to the position of the ending pin. When the rack moves out of the curved section guide rail, the control rod slides from the position of the stop pin to the position of the start pin under the action of the spring, and drives the inner side of the rack to return to its original position.

[0014] More preferably, in the curved section guide rail: The base circle tooth groove width of the sliding rack and the previous rack that has not yet slid is a gradual value between e and [(R0-W / ) ×α+e]; The radius of the curved guide rail satisfies: [(R0-W / ) ×α+e] <a; Where R0 represents the radius of the curve segment, e represents the width of the base circle tooth groove of the rack, W represents the width of the guide rail, α represents the included angle between each tooth of the rack in the curve segment, and a represents the tooth tip clearance width of the rack.

[0015] Preferably, the space for vertical transportation is located close to existing vertical elevator construction.

[0016] Secondly, this application also provides an underground rail transit method, which utilizes the underground rail transit system described in the first aspect above for mixed passenger and freight transport, the method comprising: Determine the origin and destination of the freight shipment; Design cargo transportation routes based on the aforementioned freight origin and destination; Civil construction will be carried out according to the designed cargo transportation route; The cargo transportation subsystem and cargo guide rail subsystem are constructed within the civil engineering support structure.

[0017] Preferably, the method further includes: When the guide rails on the top of the freight train carriages are equipped with guide rails, the guide rails of the freight train and the guide rails in the cargo guide rail subsystem are connected to each other through automatic driving technology.

[0018] The underground rail transit system provided in this application includes a passenger system and a freight system, with both systems sharing a single rail transit station. The freight system includes: a civil engineering support structure for constructing freight transport space within the rail transit station, a freight guide rail subsystem for forming freight transport paths, and a freight transport subsystem for transporting goods from the starting point to the ending point. This system can fully utilize traditional space to efficiently achieve mixed passenger and freight use in urban rail transit stations without significantly altering the civil engineering design of existing passenger urban rail transit stations, providing a good channel for urban logistics transportation and contributing to the construction of an intensive, green, and efficient urban physical system.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings: Figure 1 This is a schematic diagram of an underground rail transit system according to a preferred embodiment of this application; Figure 2 A schematic diagram of the cargo guide rail subsystem according to a preferred embodiment of this application; Figure 3 This is a schematic diagram of a cargo transportation subsystem according to a preferred embodiment of this application; Figure 4 A schematic diagram of the cargo guide rail subsystem and cargo transportation subsystem according to a preferred embodiment of this application; Figure 5 A schematic diagram of the curved rack and limiting structure according to a preferred embodiment of this application; Figure 6 A schematic diagram of the curved section guide rail node according to a preferred embodiment of this application; Figure 7 This is a schematic diagram of the gear and rack according to a preferred embodiment of this application; Figure 8 This is a schematic diagram of an underground rail transportation method according to a preferred embodiment of this application.

[0021] Attachment Number: 1-Civil engineering support structure; 2-Cargo guide rail subsystem; 21-Rail; 22-Rack; 23-Guard arm; 3-Cargo transportation subsystem; 31-Gear; 32-Drive shaft; 33-Cargo fixing part; 331-Gear engagement rod; 332-Connecting rod; 333-Roller; 34-Motor; 4-Cargo; 5-Limiting mechanism; 51-Starting pin; 52-Control rod; 54-Spring; 55-Fixing block. Detailed Implementation

[0022] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] First, such as Figure 1 As shown, this application provides an underground rail transit system, including a passenger system for passenger transport and a freight system for freight transport. The passenger system and the freight system share a single rail transit station, enabling the rail transit system to handle both passenger and freight transport. It is understood that the rail transit station mentioned in this application is a broad term encompassing the transportation hub space both above and below ground, rather than a specific platform. The passenger system can be an existing underground rail transit passenger system, such as a subway station. The freight system can be formed by making minor modifications to an existing passenger space.

[0024] The freight system in this application includes: a civil engineering support structure 1 for constructing freight transport space within the rail transit station space; a freight guide rail subsystem 2 for forming freight transport paths; and a freight transport subsystem 3 for transporting goods from a starting position to an ending position. The civil engineering support structure 1 can be understood as the structural system supporting the freight guide rail subsystem 2 and the freight transport subsystem 3. The freight transport space it forms includes spaces for lateral and / or vertical and / or diagonal transport, the specific combination of which is determined by the transport path planning results.

[0025] In one specific implementation, the civil engineering support structure 1 can be constructed using common building forms such as reinforced concrete or steel structures. Furthermore, from a functional and practical perspective, when planning the freight transport space, the freight transport end should be close to existing station entrances and exits and freight loading and unloading areas. The vertical transport space within the freight transport space can be constructed close to existing vertical elevators, such as existing passenger elevators, in order to minimize overall civil engineering modifications to the system.

[0026] In one specific implementation, the cargo guide rail subsystem 2 includes: guide rails set along the cargo transport path within the cargo transport space, so that cargo can be transported along a planned path within the guide rails. For example... Figure 2 As shown, the guide rail includes: a rail 21, a rack 22 disposed on the rail surface of the rail 21, and guard arms 23 disposed on both sides of the rack 22. The rail 21 can be an H-shaped steel rail, the rack 22 is disposed on the two rail surfaces of the steel rail, and the guard arms 23 are used to limit the movement of the rack 22 on both sides.

[0027] In one specific embodiment, the cargo transportation subsystem 3 includes: a transmission assembly disposed in a guide rail and on which cargo is fixed, and a power assembly that provides rotational power to the transmission assembly. Figure 3-4As shown, the transmission assembly includes: a gear 31 meshing in the rack 22; a transmission shaft 32 connected to the rotation axis of the gear 31 on the outside of the gear 31; and a cargo fixing part 33 for fixing cargo, connected to the rotation axis of the gear 31 on the inside of the gear 31. The power assembly includes a motor 34 connected to the transmission shaft 32. The motor 34 provides rotational power to the gear 31 through the transmission shaft 32, causing the gear 31 to rotate under the drive of the motor 34, and move along the track 21 in the rack 22 through meshing, thereby driving the cargo 4 fixed in the cargo fixing part 33 to move along the track 21.

[0028] To ensure the balance of cargo transportation, combined with Figure 1-4 As shown, the guide rails are configured as a pair, each equipped with a transmission component and a power component. The motor 34 is located on the outer side of the pair of rails 21. The cargo fixing part 33 includes a gear engaging rod 331, a gear connecting rod 332, and a roller 333. The gear engaging rod 331 is connected to the rotation shaft of the gear 31 inside the gear 31. The connecting rod 332 is located between the gear engaging rods 331 on the inner side of the pair of rails 21. The roller 333 is located within the connecting rod 332. The cargo 4 is suspended in the connecting rod 332 by the roller 333, allowing the cargo 4 to move within the pair of rails 21.

[0029] Furthermore, in the above embodiment, the goods 4 are not transported directly on the track 21, but rather transported by the rolling of the gear 31, which drives the goods 4 suspended inside the pair of tracks 21. Therefore, at the location where the transport direction of the track 21 changes, a curved transition section is provided instead of a right-angle end, which facilitates the rolling of the gear 31. That is, in the preferred embodiment, the guide rail includes: a straight section guide rail and a curved section guide rail disposed between the endpoints of adjacent straight section guide rails.

[0030] Therefore, rack 22 is configured with a fixed pitch in the straight section of the guide rail, and with a non-fixed pitch in the curved section of the guide rail. Combined Figure 1 , 5 As shown in Figure 7, a limiting mechanism 5 is provided on the inner side of the track in the curved section guide rail. When the rack 22 moves in the curved section guide rail, the outer position of the rack 22 is fixed, and the inner side of the rack 22 slides in the opposite direction of transportation under the action of the sliding horizontal force of the gear 22, and the sliding distance is limited by the limiting mechanism 5.

[0031] In one specific embodiment, the limiting mechanism includes 5: a starting pin 51, a control rod 52, a stopping pin 53, a spring 54, and a fixing block 55. One end of the control rod 52 is fixed to the inner side of the rack 22, and the other end is disposed between the starting pin 51 and the stopping pin 53. The fixing block 55 is fixed at a preset position inside the rack 22 of the curved section guide rail and is connected to the control rod 52 via the spring 54. This preset position is the fixed end when the spring 54 extends or retracts. The limiting mechanism 5 may be provided only inside one or more racks 22 of the curved section guide rail.

[0032] When rack 22 moves on the curved section guide rail, the outer side of rack 22 is fixed, while the inner side slides in the opposite direction of transport under the sliding horizontal force of gear 31. This relative misalignment forces gear 31 to "turn," during which control rod 52 slides from the starting pin 51 to the ending pin 53 under the drive of gear 31, compressing spring 54. Therefore, the "swinging" distance of the inner side of rack 22 is limited. When rack 22 moves out of the curved section guide rail, that is, after gear 31 leaves the curved section guide rail, control rod 52 slides from the ending pin 53 to the starting pin 51 under the extension force of spring 54, causing the inner side of rack 22 to return to its original position.

[0033] For the above structure, when designing the structural parameters, the base circle tooth groove width of the sliding rack and the previous rack that has not yet slid should satisfy the following formula (1): e~ [(R0-W / 2) ×α+e] (1) Where R0 represents the radius of the curve segment, e represents the width of the rack's base circle tooth groove, W represents the width of the guide rail, α represents the angle between each tooth of the rack within the curve segment, which is also the angle of the rack's inner swing, and a represents the width of the rack's tooth tip clearance. The base circle tooth groove width between the sliding rack and the previous rack that has not yet slid is the gradual value between the rack's base circle tooth groove width e and [(R0-W / 2) ×α+e].

[0034] At the same time, the radius of the curved section guide rail satisfies the following formula (2): [(R0-W / 2) ×α+e] That is, let the length of the rack teeth 22 be L. The outer end of each tooth is fixed at a position L0 outside the center line of the guide rail, while the inner end is not fixed and is in a sliding state. The extension lines of the center lines of the outermost positions of each tooth intersect at the center O of a circle with radius R0, and the included angle between each tooth is α. When the gear reaches the curved section, the rack, under the action of the spring 54 and the starting pin 51, is located at... Figure 5 The position indicated by the dotted line. When the gear reaches the curved section, since only the outer side of the rack is fixed, the inner side slides backward under the action of the horizontal sliding force of the gear until it reaches the... Figure 5 ​The position of the middle stop pin 54, the angle of the rack 22 sliding is α. At this time, the base circle tooth space width of the sliding rack and the previous non-sliding rack is a gradient value between e~[(R0-W / 2) ×α+e]. If [(R0-W / 2) ×α+e]<a, the gear will mesh with the next rack and continue to move forward by sliding the next rack.

[0035] It can be understood that for the convenience of the rack 22 to slide, in the area of the curved track, the track 21 may not be of H type, so that the rack 22 can extend out of both sides of the track 21, and the guard arm 23 can be widened or the guard arm 23 can be not provided.

[0036] In this embodiment, the goods track subsystem 2 and the goods transportation subsystem 3 can adapt to different planar arc lines and vertical arc lines. In addition, the tooth length L, radius r, base circle tooth thickness s, rack base circle tooth space width e, included angle α between each tooth, tooth tip clearance width a, and base circle tooth pitch p of the rack 22 can be calculated according to actual needs and gear specifications. The width W of the track is set according to needs.

[0037] The underground rail transit system provided by this application includes a passenger transport system and a freight transport system, and the passenger transport system and the freight transport system share a rail transit station. The freight transport system includes: a civil engineering support structure for constructing a goods transportation space within the space of the rail transit station, a goods track subsystem for forming a goods transportation path, and a goods transportation subsystem for transporting goods from the starting position to the ending position. Without major modifications to the civil engineering design of the existing passenger urban rail transit station, it can make full use of the traditional space to efficiently achieve the mixed use of passengers and goods in the rail transit station, provide a good channel for urban logistics transportation, and contribute to the construction of an intensive, green, and efficient urban physical system.

[0038] In the second aspect, this application also provides an underground rail transit method, which uses the underground rail transit system described in the first aspect above for mixed passenger and freight transportation, as Figure 8 shown, this method includes steps 810-840: Step 810, determine the freight starting point and ending point; Specifically, determine the feasible freight starting point and ending point according to the spatial structure of the existing passenger transport system.

[0039] In a specific embodiment, the starting point of the goods is the ground freight yard, and the ending point is the underground subway station platform, so as to achieve the purpose of directly transporting the goods from the goods yard to the freight train platform.

[0040] Step 820, design the goods transportation path according to the freight starting point and ending point; Specifically, in combination with specific site conditions and existing civil engineering foundation conditions, etc., design the cargo transportation route based on the starting and ending points of the freight. During the design, the horizontal and vertical straight segments of the cargo transportation route can be planned first, and then the endpoints between adjacent straight segments are connected to form curved segments. The vertical straight segment can be arranged close to the existing vertical elevator. In the curved segment, the curve radius R0 needs to meet the parameter requirements of [(R0 - W / 2) × α + e] < a. The values of the rack base circle tooth groove width e, the angle α between each tooth, and the rack tooth tip clearance width a are obtained through gear specification calculations, and the width W of the guide rail is set as required.

[0041] Step 830: Perform civil engineering construction according to the designed cargo transportation route. Specifically, on the premise of minimizing civil engineering changes, perform civil engineering construction according to the designed cargo transportation route to build the civil engineering conditions that meet cargo transportation.

[0042] Step 840: Install the cargo transportation subsystem and the cargo guide rail subsystem within the civil engineering support structure.

[0043] Specifically, after the civil engineering construction is completed, the cargo transportation subsystem and the cargo guide rail subsystem can be built. Among them, the basic material of the guide rail can be steel, and the shape of the guide rail is adjusted according to the requirements of the transportation route.

[0044] In addition, when the top of the freight train carriage is equipped with a guide rail, the guide rail of the vehicle and the guide rail in the cargo guide rail subsystem can be docked with each other through autonomous driving technology relying on vehicle signal calibration. The starting point of the freight guide rail is at the cargo loading and unloading point on the ground, and the end point is inside the subway vehicle underground, enabling seamless transportation of the cargo from the ground loading and unloading point directly into the vehicle.

[0045] Other preferred embodiments of the underground rail transportation method provided by this application, the technical problems that can be solved, and the technical effects that can be achieved are the same as those of the above underground rail transportation system, and will not be elaborated here.

[0046] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application.

[0047] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, this application will not separately describe various possible combination methods.

[0048] Furthermore, various different embodiments of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed by this invention.

Claims

1. An underground rail transportation system, characterized in that, The underground rail transit transportation system comprises: a passenger system and a freight system, which share a rail transit station; wherein the freight system comprises: a civil support structure (1) for constructing a freight transportation space within the rail transit station space; a freight guide rail subsystem (2) for forming a freight transportation path; a freight transportation subsystem (3) for transporting freight from a starting position to an ending position.

2. The underground rail transportation system of claim 1, wherein, The freight transportation space comprises one or more of horizontal, vertical, and inclined transportation spaces.

3. The underground rail transportation system of claim 1, wherein, The freight guide rail subsystem (2) comprises: a guide rail arranged in the freight transportation space along the freight transportation path.

4. The underground rail transportation system of claim 3, wherein, The freight transportation subsystem (3) comprises: a transmission assembly arranged in the guide rail and fixed with freight; a power assembly for providing rotational power to the transmission assembly.

5. The underground rail transit transportation system according to claim 4, wherein: The guide rail comprises: a rail (21); a rack (22) arranged in the rail surface of the rail (21); The transmission assembly comprises: a gear (31) engaged in the rack (22); a transmission shaft (32) connected to the rotation axis of the gear (31) on the outside of the gear (31); a freight fixing part (33) connected to the rotation axis of the gear (31) on the inside of the gear (31) for fixing the freight (4); The power assembly comprises: a motor (34) connected to the transmission shaft (32) for providing rotational power to the gear (31) through the transmission shaft (32); The gear (31) rotates under the drive of the motor (34) and moves in the rack (22) along the rail (21), thereby driving the freight (4) fixed in the freight fixing part (33) to move along the rail (21).

6. The underground rail transit transportation system according to claim 5, wherein: The guide rail is configured as a pair, each guide rail being provided with the transmission assembly and the power assembly; The freight fixing part (33) comprises: a gear clamping rod (331) connected to the rotation axis of the gear (31) on the inside of the gear (31); a connecting rod (332) arranged between the two gear clamping rods (331) on the inside of a pair of rails (21); a roller (333) arranged in the connecting rod (332), and the freight (4) is hung in the connecting rod (332) through the roller (333).

7. The underground rail transportation system of claim 5, wherein, The guide rail comprises a straight section guide rail and a curved section guide rail; The rack (22) is arranged as a fixed pitch in the straight section guide rail, The rack (22) is arranged as a non-fixed pitch in the curved section guide rail.

8. The underground rail transportation system of claim 7, wherein, A limiting mechanism (5) is arranged on the inside of the rail in the curved section guide rail; When the rack (22) moves in the curved section guide rail, the position of the outside of the rack (22) is fixed, the inside of the rack (22) slides in the opposite direction of transportation under the action of gear sliding horizontal force, and the sliding distance is limited by the limiting mechanism (5).

9. The underground rail transportation system of claim 8, wherein, The limiting mechanism comprises (5): a starting pin (51), a control rod (52), an ending pin (53), a spring (54) and a fixed block (55); One end of the control rod (52) is fixed to the inner side of the rack (22), and the other end is arranged between the starting pin (51) and the ending pin (53); The fixed block (55) is fixed to the preset position of the inner side of the rack (22) of the curved section guide rail, and is connected with the control rod (52) through the spring (54); When the rack (22) moves in the curved section guide rail, the position of the outer side of the rack (22) of the curved section guide rail is fixed, and the inner side slides in the opposite direction of transportation under the action of the sliding horizontal force of the gear (31), driving the control rod (52) to slide from the position of the starting pin (51) to the position of the ending pin (53); When the rack (22) moves out of the curved section guide rail, the control rod (52) slides from the position of the ending pin (53) to the position of the starting pin (51) under the action of the spring (54), and drives the inner side of the rack (22) to return to the original position.

10. The underground rail transportation system of claim 9, wherein, In the curved section guide rail: The base circle tooth groove width of the sliding rack and the previous rack that has not been slid is gradually changed between e and [(R0-W / 2) ×α+e]; The radius of the curved section guide rail satisfies: [(R0-W / 2) ×α+e]<a; Wherein, R0 represents the radius of the curved section, e represents the base circle tooth groove width of the rack, W represents the width of the guide rail, α represents the included angle between each tooth in the rack in the curved section, and a represents the addendum clearance width of the rack.

11. The underground rail transportation system of claim 2, wherein, The space of the vertical transportation is close to the existing vertical elevator construction.

12. An underground rail transportation method, characterized by, The method utilizes the underground rail transit transportation system of any one of claims 1-11 to mix passenger and cargo transportation, and the method comprises: Determining the cargo transportation starting point and ending point; Designing the cargo transportation path according to the cargo transportation starting point and ending point; Performing civil construction according to the designed cargo transportation path; Performing the cargo transportation subsystem and the cargo guide rail subsystem in the civil support structure.

13. The underground rail transportation method of claim 12, wherein, The method further comprises: When the guide rail on the top of the cargo train carriage is equipped with a guide rail, the guide rail of the cargo train is automatically connected with the guide rail in the cargo guide rail subsystem through automatic driving technology.

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