CN116716765A

CN116716765A - Rail transportation system and operation method

Info

Publication number: CN116716765A
Application number: CN202310798806.9A
Authority: CN
Inventors: 李石平; 牛学信; 张东方; 聂肃; 朱利君
Original assignee: Zhuzhou CSR Times Electric Co Ltd; Baoji CRRC Times Engineering Machinery Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd; Baoji CRRC Times Engineering Machinery Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-09-08

Abstract

The application discloses a steel rail transportation system and an operation method, wherein the system comprises the following components: a first flatcar for storing and transporting rails. The first flatcar is provided with a plurality of jacking conveying devices at intervals along the longitudinal direction, and the jacking conveying devices are used for jacking and longitudinally conveying the steel rail. And the first flatcar is also provided with a transverse pushing device, and the transverse pushing device is used for integrally conveying the steel rail on the jacking conveying device to a designated position on the first flatcar along the transverse direction. After the steel rail is conveyed to a designated position from one end of the first flat car through the jacking conveying device, the jacking conveying device descends, and the steel rail falls onto the transverse pushing device. The transverse pushing device integrally conveys the steel rail to a designated position on the first flatcar along the transverse direction for storage. The application can solve the technical problems that the existing steel rail transportation system and operation method have low efficiency and are not suitable for narrow operation spaces such as subway tunnels.

Description

Rail transportation system and operation method

Technical Field

The application relates to the technical field of railway engineering machinery, in particular to a steel rail transportation system and an operation method applied to continuous welding of steel rails.

Background

Railway rails usually need to be replaced when reaching a certain life span, short rails need to be transported to the site through a flat car in the subway rail replacement process, and then long rails are welded on the ground through a plurality of skylight spot welds. In construction work, such as railway construction and maintenance, transportation work of rails is indispensable. At present, long rail transport vehicles are mainly used for transporting steel rails, and are mainly suitable for national railway lines and are not suitable for narrow working spaces such as subway tunnels. In addition, the existing long steel rail transportation operation vehicle is inconvenient to be connected with construction vehicles such as rail unloading, rail changing and the like, and the operation efficiency is reduced. Meanwhile, bending the rail during transportation of the rail may generate stress concentration effects, resulting in damage or even breakage of the rail.

In the prior art, liu Xuexia is applied for 23 months in 2021 and published in 03 months in 2021, and China application publication No. CN113335316A discloses a rail transportation flatcar for subway construction. This fortune rail flatcar includes: the track is horizontally arranged in the tunnel and is arranged along the length direction of the tunnel; the vehicle body is arranged on the track and comprises a mounting plate and a top plate which are horizontally arranged; the travelling mechanism is arranged below the vehicle body, and the vehicle body travels on the track along the length direction of the track through the travelling mechanism; the sleeper bearing mechanism is arranged on the vehicle body and is positioned at the front end of the top of the vehicle body; the rail bearing mechanism is arranged on the vehicle body, and the length direction of the rail bearing mechanism is consistent with the length direction of the rail; and the conveying and feeding mechanism is arranged on the rail bearing mechanism. The rail transportation flat car for subway construction can transport a large number of sleepers and rails to a construction position by carrying the rails and the sleepers to run in the rails through the flat car, so that the carrying capacity is improved, the manual labor intensity is reduced, multiple carrying is avoided, the working efficiency is improved, and the equipment practicability is improved. The application proposes a technical scheme for carrying and transporting rails and sleepers in subway construction, but is not suitable for transportation of hundred-meter long rails.

Therefore, the existing rail transportation operation vehicle has the following technical defects:

1) The existing steel rail transportation operation vehicle is mainly applicable to national railway lines and is not applicable to narrow operation spaces such as subway tunnels. In addition, the existing rail transportation operation vehicle is inconvenient to be connected with construction vehicles such as rail unloading, rail changing and the like, and the operation efficiency is reduced.

2) The existing rail transportation operation vehicle mainly depends on a common flatcar and raceway beam device to transport long rails, stress concentration effect can be generated when the rails are bent in the transportation of the rails, long deformation space is needed for the bending deformation position transformation of the rails, and the rails are easy to damage or even break. In addition, although the track beam structure improves the number of primary rail transportation, the track rail is difficult to pass through and cannot carry other operation devices, and the track rail structure is not suitable for construction occasions with small primary rail transportation requirements such as subways and the like but with requirements on the length and the space of the whole track rail.

3) The existing rail transportation operation vehicle does not have the whole conveying capacity of adjusting the transverse position and the vertical position of the rail and conveying longitudinally.

Disclosure of Invention

In view of the above, the present application aims to provide a rail transportation system and an operation method, which solve the technical problems that the existing rail transportation system and operation method have low efficiency and are not suitable for narrow operation spaces such as subway tunnels.

In order to achieve the above object, the present application specifically provides a technical implementation scheme of a rail transportation system, including:

a first flatcar for storing and transporting rails.

The first flatcar is provided with a plurality of jacking conveying devices at intervals along the longitudinal direction, and the jacking conveying devices are used for jacking and longitudinally conveying steel rails.

The first flatcar is further provided with a transverse pushing device, and the transverse pushing device is used for integrally conveying the steel rail on the jacking conveying device to a designated position on the first flatcar along the transverse direction.

When the steel rail is loaded, after the steel rail is conveyed to a designated position from one end of the first flat car through the jacking conveying device, the jacking conveying device descends, and the steel rail falls onto the transverse pushing device. The transverse pushing device integrally conveys the steel rail to a designated position on the first flatcar along the transverse direction for storage.

Further, when unloading the steel rail, the transverse pushing device transversely moves to push the stored steel rail to a designated position, and the jacking conveying device ascends and jacks the steel rail to longitudinally convey the steel rail to leave the first flatcar.

Further, the transverse pushing devices are arranged at intervals in pairs along the longitudinal direction of the first flat car, and the steel rails are transversely moved to two sides of the first flat car for storage.

Further, a rail storage table for storing rails is arranged on the first flatcar, an arch for passing through the rails is arranged in the middle of the first flatcar in the longitudinal direction, and the arch is simultaneously located on the upper portion of the jacking conveying device.

Further, on two sides of the arch along the transverse direction, a walkway for personnel to walk and place equipment is arranged on the upper portion of the rail storage table, and a guardrail is arranged on the outer side of the walkway.

Further, the first flat cars of a plurality of flat cars are connected to form a storage space of the steel rail with the required length.

Further, a fixed pulley is arranged on the first flatcar. When the steel rail is required to be conveyed to the first flatcar for storage, one end of the traction device is connected with the steel rail after passing through the fixed pulley, and the other end of the traction device is connected with the pushing device. When the steel rail is required to be unloaded to the ground, one end of the traction device is connected with the steel rail, and the other end of the traction device is connected with the pushing device.

The application also specifically provides a technical scheme of a steel rail transportation operation method, which comprises the following steps:

s1) before rail transportation operation, when a plurality of first flatcars are connected and hung through couplers, the rails are conveyed to a jacking conveying device from one end of each first flatcar, and the rails are pushed to a designated position through the jacking conveying device;

S2) the jacking and conveying device descends to enable the steel rails to fall onto the transverse pushing device, the transverse pushing device transversely moves to a designated position, and a plurality of steel rails are sequentially stored below the rail storage platform;

s3) during rail transportation operation, grouping the first flatcar and the tractor, and transporting and transferring the steel rail;

s4) after rail transportation operation, when the steel rail is unloaded, the transverse pushing device transversely moves to push the stored steel rail to the middle position, the lifting conveying device lifts the steel rail, and the steel rail is pushed to leave the first flatcar along the longitudinal direction.

Further, before the rail transportation operation, the short steel rail is welded into a long steel rail, and the long steel rail is conveyed to the first flatcar through the jacking conveying device.

Further, before the rail unloading operation, after the steel rail is conveyed by the jacking conveying device to leave the first flat car, the long steel rail is welded into a longer long rail.

Further, in the step S2), the lateral pushing device moves towards two lateral sides of the first flatcar, and stores a plurality of steel rails in sequence into spaces at two sides below the rail storage platform.

Further, in the step S1), the rail is conveyed from one end to the jacking and conveying device of the first flatcar through a space arched in the middle of the rail storage table.

Further, in the step S4), the jacking and conveying device jacks up the steel rail to reach the space arched in the middle of the rail storage platform, and pushes the steel rail to leave the first flatcar along the longitudinal direction.

By implementing the technical scheme of the steel rail transportation system and the operation method provided by the application, the steel rail transportation system and the operation method have the following beneficial effects:

(1) According to the rail transportation system and the operation method, the stable transportation and the transportation of the whole rail are realized through the jacking and conveying device and the transverse pushing device, the automation of the transportation process is completely realized, the quality of the rail is effectively ensured while the space is saved, and the rail transportation system and the operation method are particularly suitable for being used as a rail storage and transportation part to be connected and combined with construction vehicles such as a rail unloading vehicle, a rail changing vehicle and the like under the construction environment with narrow space such as a subway;

(2) The rail transportation system and the operation method have the advantages of high automation degree, space and whole vehicle length saving, realization of rail welding, rail transportation, rail unloading and rail changing, more flexible grouping and operation modes, high mechanization degree, improvement of operation efficiency, saving of a large amount of manpower, and good adaptability to the characteristic of short skylight period of subway rail changing operation;

(3) According to the rail transportation system and the operation method, the rail storage frame arched in the middle is matched with the longitudinal jacking conveying device and the transverse pushing device, stress concentration is not generated in the conveying process of the rails, meanwhile, the walking way is arranged for people to walk and put other equipment, and the rail can be stored on the rail transportation flat car, and the operation device can be put through the people.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the application, from which other embodiments can be obtained for a person skilled in the art without inventive effort.

FIG. 1 is a schematic front view of an embodiment of the rail transit system of the present application;

FIG. 2 is a schematic front view of a single section first flatcar (rail car) in an embodiment of the rail transportation system of the present application;

FIG. 3 is a front view of the principle of operation of a single section first flatcar (rail car) in an embodiment of the rail transit system of the present application;

FIG. 4 is a schematic top view of a single section first flatcar (rail car) in an exemplary embodiment of the rail transportation system of the present application;

FIG. 5 is a schematic view of the first flatcar (rail car) in a longitudinal view of an embodiment of the rail transportation system of the present application;

FIG. 6 is a schematic view of the principle of operation of a first flatcar (rail car) in a longitudinal view of an embodiment of the rail transportation system of the present application;

Fig. 7 is a schematic front view of the first embodiment of the continuous welding track operation system in the rail-matching operation state based on the rail transportation system of the present application;

FIG. 8 is a schematic top view of a first embodiment of a continuous welding track operation system in a rail-laying operation state, based on the rail transport system of the present application;

FIG. 9 is a schematic plan view of the first embodiment of the continuous rail welding operation system in a rail-laying operation state of the first flatcar (rail car) and the second flatcar (rail car) based on the rail transportation system of the present application;

FIG. 10 is a schematic view of a connection structure of a second embodiment of a continuous welding rail operating system in a rail-laying operation state based on the rail transportation system of the present application;

FIG. 11 is a schematic view showing a connection structure of a third embodiment of a continuous welding rail operating system in a rail-laying operation state based on the rail transportation system of the present application;

FIG. 12 is a schematic view showing a connection structure of a fourth embodiment of a continuous welding rail operating system in a change rail operating state based on the rail transportation system of the present application;

FIG. 13 is a schematic view showing a connection structure of a fifth embodiment of a continuous welding rail operating system in a change rail operating state based on the rail transportation system of the present application;

FIG. 14 is a schematic front view of a first flatcar (rail car) in one embodiment of a continuous rail welding operation system based on the rail transportation system of the present application;

FIG. 15 is a schematic front view of a third flatcar (grinding wagon) in one embodiment of a continuous rail welding operation system based on the rail transportation system of the present application;

FIG. 16 is a schematic front view of a second flatcar (welded rail car) in one embodiment of a continuous rail welding operation system based on the rail transportation system of the present application;

FIG. 17 is a schematic top view of a first flatcar (rail car) in one embodiment of a continuous rail welding operation system based on the rail transportation system of the present application;

FIG. 18 is a schematic top view of a second flatcar (welded rail car) in one embodiment of a continuous rail welding operation system based on the rail transportation system of the present application;

FIG. 19 is a schematic top view of a third flatcar (grinding wagon) in one embodiment of a continuous rail welding operation system based on the rail transportation system of the present application;

in the figure: 1-tractor, 2-first flatcar, 3-second flatcar, 4-rail distribution, 5-rail unloading, 6-rail changing, 7-welding module, 8-third flatcar, 9-polishing module, 10-frame, 11-coupler, 12-bogie, 13-jacking conveying device, 14-transverse pushing device, 15-pushing device, 16-traction device, 17-fixed pulley, 18-walkway, 19-rail storage platform, 20-arch, 21-railing, 22-roller and 23-rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Embodiments of the rail transit system and method of operation of the present application are shown in fig. 1-19, and the present application will be further described with reference to the drawings and embodiments.

Example 1

As shown in fig. 1 to 3, an embodiment of the rail transportation system of the present application specifically includes:

a first flatcar 2 (i.e. rail car) for storing and transporting rails 23.

A plurality of jacking and conveying devices 13 are arranged on the first flat car 2 at intervals along the longitudinal direction, and the jacking and conveying devices 13 are used for jacking and longitudinally conveying the steel rail 23.

The first flatcar 2 is further provided with a transverse pushing device 14, and the transverse pushing device 14 is used for integrally conveying the steel rail 23 on the jacking conveying device 13 to a designated position on the first flatcar 2 along the transverse direction.

As shown in fig. 4, the transverse pushing device 14 is used for integrally conveying the steel rail 23 on the jacking conveying device 13 to a designated position on the first flatcar 2 along the transverse direction (the direction shown as W in the drawing). The lateral pushing devices 14 are arranged at intervals in pairs in the longitudinal direction of the first flatcar 2 (direction L in the drawing), and move the rails 23 laterally to both sides of the first flatcar 2 for storage. The transverse pushing device 14 and the jacking and conveying device 13 realize the overall stable driving of the steel rail 23, the transfer process is fully automatic, and on the basis of realizing the overall transfer and conveying of the steel rail, the space is saved, and the quality of the steel rail 23 is ensured.

As shown in fig. 4 to 6, a rail storage table 19 for storing rails 23 is provided on the first carriage 2, and a camber 20 (a conveying line for the rails 23) for passing through the rails 23 is provided in the middle in the longitudinal direction of the first carriage 2, the camber 20 being located at the upper portion of the jacking conveyor 13 at the same time. The rail storage table 17 is a means for storing the rails 23, and when the rails 23 are stored in a horizontally moving manner, the rails 23 can be entirely moved sideways and stored on the rail storage table 19. On both sides of the arch 20 in the transverse direction, the upper part of the rail storage platform 19 is provided with a walkway 1 for personnel to walk and place equipment, and the outer side of the walkway 18 is provided with a guardrail 21. The walkway 18 is used for forming a passageway above the rail storage platform 19, which can be used for walking by people, and can be conveniently overhauled and moved on a flat car. The guard rail 21 is used to provide protection for personnel walking on the walkway. The rail storage table 19 with the arch 20 arranged above the middle part is matched with the vertically arranged jacking conveying device 13 and the transverse pushing device 14, stress concentration cannot be generated in the conveying process of the steel rail 23, the rail storage table is particularly suitable for combined construction with construction vehicles such as unloading rails and changing rails in construction environments with narrow spaces such as subways and tunnels, and is used as a rail storage part and a rail transportation part for connecting and hanging, so that the steel rail 23 can be stored on the rail transportation vehicle at the same time, and the functions of personnel and operation device placement are realized. In the embodiment, the technical scheme of the whole transverse movement of the steel rail is adopted, so that the transition length required by the deformation of the steel rail is saved, and a transition vehicle is eliminated, thereby greatly reducing the length of the whole vehicle.

When the rail 23 is loaded, the rail 23 is conveyed to a designated position from one end of the first flatcar 2 through the jacking conveying device 13 by the arch 20 in the middle, the jacking conveying device 13 descends, and the rail 23 falls onto the transverse pushing device 14. The transverse pushing device 14 integrally conveys the steel rail 23 to a designated position on the first flatcar 2 in the transverse direction for storage.

When unloading the rails 23, the lateral pushing device 14 moves laterally to push the stored rails 23 to a position below the central arch 20 of the first flatcar 2, and the lifting and conveying device 13 lifts up and lifts up the rails 23 and conveys the rails 23 in the longitudinal direction away from the first flatcar 2.

The first flatcars 1 of a plurality of flatcars are connected to form a storage space of the steel rail 23 with the required length, and the loading and the transportation of the long steel rail can be realized after the connection. The first flatcar 2 is provided with a fixed pulley 17. When the steel rail 23 is required to be conveyed to the first flatcar 2 for storage, one end of the traction device 16 is connected with the steel rail 23 after passing through the fixed pulley 17, and the other end is connected with the pushing device 15. When it is desired to unload the rail 23 to the ground, the traction means 16 is connected at one end to the rail 23 and at the other end to the pusher 15. As an exemplary embodiment of the present application, the pushing device 15 may further specifically use a winch for implementing traction and pushing of the rail 23 as a supplement to the jacking and conveying device 13. And the pushing device 15 is provided with a traction device 16, and the traction device 16 can further specifically adopt a steel wire rope. In this embodiment, the hoisting is only one structural implementation scheme, not limited to the implementation modes of the hoisting machine and the steel wire rope, and the conveying of the steel rail 23 can be achieved by other modes, such as: the transport of the rail 23 can be achieved by providing self-powered clamping wheels on the left and right sides of the rail 23. The fixed pulley 17 is used for pushing the steel rail 23 by matching with a steel wire rope and a winch.

The rail transportation system described in embodiment 1 realizes the stable transportation and transportation of the whole rail through the jacking and conveying device and the transverse pushing device, fully realizes the automation of the transportation process, effectively ensures the quality of the rail while saving the space, and is particularly suitable for being used as a rail storage and transportation part to be connected and combined with construction vehicles such as a rail unloading and rail changing device in the construction environment with narrow space such as subways. The rail transportation system has the advantages of high automation degree, space saving, whole car length saving, rail welding, rail transportation, rail unloading and rail changing realization, more flexible marshalling and operation modes, high mechanization degree, high operation efficiency, great manual work saving, and suitability for the characteristic of short skylight period of subway rail changing operation. Meanwhile, the rail transportation system adopts a rail storage frame arched in the middle to be matched with a longitudinal jacking and conveying device and a transverse pushing device, stress concentration cannot be generated in the conveying process of the rails, and meanwhile, the rail transportation system is used for walking and placing other equipment by arranging a pavement, so that the rail can be stored on a rail transportation flat car, and the operating device can be placed by personnel.

Example 2

An embodiment of a rail transportation operation method based on the system of embodiment 1 of the present application specifically includes the following steps:

S1) before rail transportation operation, when a plurality of first flatcars 2 are connected and hung through couplers 11, the rails 23 are conveyed to a jacking conveying device 13 from one end of each first flatcar 2, and the rails 23 are pushed to a designated position through the jacking conveying device 13;

s2) the jacking and conveying device 13 descends to enable the steel rails 23 to fall onto the transverse pushing device 14, the transverse pushing device 14 transversely moves to a designated position, and a plurality of steel rails 23 are sequentially stored below the rail storage table 21;

s3) during rail transportation operation, the first flatcar 2 and the tractor 1 are grouped, and the rail 23 is transported and transferred;

s4) after the rail transportation operation, when the rail 23 is unloaded, the lateral pushing device 14 moves laterally to push the stored rail 23 to the middle position, the rail 23 is lifted by the lifting conveying device 14, and the rail 23 is pushed away from the first flatcar 2 in the longitudinal direction.

Before the rail transport operation, the short rails are welded to the long rails and transported to the first flatcar 2 by the jacking transport device 13.

Before the rail unloading operation, the long rail is welded into a longer long rail after the rail 23 is conveyed away from the first flatcar 2 by the jacking conveyor 13.

In the above step S2), the lateral pushing device 14 moves toward both lateral sides of the first flatcar 2, and sequentially stores the plurality of rails 23 in the spaces on both sides below the rail storage stand 19. When the rail 23 is loaded, the rail 23 is conveyed from one end of the first flatcar 2 to the jacking conveyor 13 by the arch 20 in the middle, and the rail 23 is pushed to a specified position by the jacking conveyor 13. After reaching the designated position, the jacking and conveying device 13 descends to enable the steel rails 23 to fall onto the transverse pushing device 14, the transverse pushing device 14 transversely moves to two sides of the first flatcar 2, and a plurality of steel rails 23 are sequentially stored below the rail storage platform 19.

In step S1) described above, the rail 23 is transported from one end to the jacking transport device 13 of the first flatcar 2 through the space of the central arch 20 of the rail storage table 19.

In the above step S4), the jacking and conveying device 13 jacks up the rail 23 to the space of the central arch 20 of the rail storage table 19, and pushes the rail 23 in the longitudinal direction to leave the first flatcar 2. When unloading the rails 23, the lateral pushing device 14 moves laterally to push the stored rails 23 to a position below the central arch 20 of the first flatcar 2, the rails 23 are lifted by the lifting conveying device 13, and the rails 23 are pushed away from the first flatcar 2 in the longitudinal direction.

In the rail transportation method described in embodiment 2, the rails 23 are placed on the rail transportation vehicle through the jacking and conveying device 13 and the transverse pushing device 14 after welding and polishing treatment are completed on the flat car, so that the rail 23 is convenient to transport, the degree of mechanization is high, the operation efficiency is high, and a large amount of labor is saved. The rail transportation operation method can finish synchronous construction operation of welding and polishing, and is effectively connected with the pre-treatment before welding and the transportation process after polishing, thereby providing possibility for realizing subway overhaul integrated construction operation of rail gathering, rail welding, polishing and rail changing.

Example 3

As shown in fig. 7 to 9, an embodiment of a continuous welding track operation system based on the rail transportation system of embodiment 1 specifically includes:

a tractor 1;

a plurality of first flatcars 2 (i.e. rail cars) for storing and transporting rails 23;

at least one second trolley 3 (i.e. welded rail car) provided with welding modules 7;

and at least one third trolley 8 (i.e. a sanding trolley) provided with a sanding module 9.

The tractor 1, the first flatcar 2, the third flatcar 8 and the second flatcar 3 are connected in sequence.

In the rail distribution operation state, the short steel rail on the rail distribution vehicle 4 is conveyed to the second flat vehicle 3, and the short steel rail is welded into a long steel rail by the welding module 7. The long steel rail is conveyed to the third flat wagon 8 again, and the polishing module 9 is used for polishing the welding line and then conveying the long steel rail to the first flat wagon 2 for storage.

In the rail unloading operation state, the long rail on the first flatcar 2 is conveyed to the second flatcar 3, the long rail is welded into a longer long rail by the welding module 7 and then unloaded to the ground, and the rail 23 polishing operation is performed on the ground.

The first flatcar 2, the second flatcar 3 and the third flatcar 8 are used for providing installation reference, running and braking, carrying and storing various operation equipment, and further comprise a frame 10, a coupler 11 and a bogie 12, wherein the coupler 11 is used for being connected with other vehicles to form a group. The tractor 1, the first flatcar 2, the third flatcar 8 and the second flatcar 3 are connected through a coupler 11.

As shown in fig. 14 to 19, a plurality of jacking and conveying devices 13 are arranged on the first flatcar 2, the second flatcar 3 and the third flatcar 8 at intervals along the longitudinal direction (the direction shown as L in the drawing), and the jacking and conveying devices 13 are used for jacking the steel rail 23 (controlling the height of the steel rail 23) and driving the steel rail 23 to move along the longitudinal direction, so that the longitudinal conveying operation is realized. The upper part of the jacking and conveying device 13 is provided with a roller 22, and the roller 22 can also be self-powered and is used for longitudinally conveying the steel rail 23.

As shown in fig. 16 and 18, the welding module 7 is disposed on the second carriage 3, and further integrates normalizing equipment and cooling equipment for normalizing and cooling the welded rail. As shown in fig. 15 and 19, the polishing module 9 is disposed on the third flatcar 8, and further integrated with flaw detection equipment for completing flaw detection operation after polishing the rail. After the welding operation of the rail 23 is completed by the welding module 7, the rail 23 is normalized and cooled. After the polishing module 9 finishes the polishing operation on the steel rail 23, flaw detection treatment is performed on the steel rail 23.

As shown in fig. 9 and 15, the third flatcar 8 has a rail transporting function, on which a pushing device 15 is arranged, and the pushing device 15 drives the rail 23 to move through a traction device 16.

Before rail transportation operation, when the steel rail 23 is loaded, a plurality of first flatcars 2 are connected and hung through the coupler 11, the steel rail 23 is conveyed to the jacking conveying device 13 from one end of the first flatcars 2, and the steel rail 23 is pushed to a designated position through the jacking conveying device 13.

The jacking and conveying device 13 descends to enable the steel rails 23 to fall onto the transverse pushing device 14, the transverse pushing device 14 transversely moves to a designated position, and a plurality of steel rails 23 are sequentially stored below the rail storage table 21.

In the rail transport operation, the first flatcar 2 and the tractor 1 are grouped, and the rail 23 is transported and transferred.

After the rail transport operation, when the rail 23 is unloaded, the lateral pushing device 14 moves laterally to push the stored rail 23 to the middle position, the rail 23 is lifted by the lifting conveying device 13, and the rail 23 is pushed away from the first flatcar 2 in the longitudinal direction.

As a preferred embodiment of the application, the distance between the welding module 7 and the grinding module 9 is the length of a section of standard rail 23, so that the welding process is performed on the current joint of the rail 23 and the grinding process is performed on the last joint. Such as: the distance between the welding module 7 on the second flatcar 3 and the polishing module 9 on the third flatcar 8 is 25m, and the welding module 7 is used for processing two welding joints when welding 25m standard short steel rails, polishing the last welding joint when welding one joint, and can realize the synchronization of the welding and polishing of the steel rails 23 during rail distribution, thereby greatly improving the rail distribution operation efficiency. When welding short rails of other lengths, only the distance between the welding module 7 and the grinding module 9 needs to be adjusted.

As a typical embodiment of the present application, the continuous rail welding operation system has two operation scenes in actual use, one scene is that 25m short rails on the rail car 4 are transported to the welding module 7 at the base, and the welding module 7 welds the 25m short rails into 100m long rails. Two steel rail conveying lines which are operated in parallel can be arranged on the rail distribution vehicle 4, wherein the first conveying line is used for carrying out welding pretreatment (such as rust removal), and the second conveying line is led to the welding module 7 for carrying out welding treatment. After the pretreatment of the steel rail 23 is completed on the first conveying line, the steel rail is lifted by the jacking conveying device 13 and is transversely transferred to the second conveying line to carry out welding operation, so that the pretreatment and the welding treatment can be synchronously carried out, the synchronization of welding and rust removal is realized, and the operation efficiency is further improved. Another scenario is that at the construction site, the long rail on the rail car (i.e. the first flatcar 2) is transported to the welding rail (i.e. the second flatcar 3), the long rail of 100m is welded into long rail strips of hundreds of meters (typically 500 m), and then unloaded to the ground through the rail unloading car 5 or unloaded to the ground through the rail changing car 6 (or the long rail strips are directly changed into the rail receiving groove). The rail 23 also has three different forms according to the working state, one is a short rail before rail matching, the other is a long rail stored on the rail transportation vehicle after welding and polishing, and the third is a long rail which is welded again and unloaded to the ground.

Before the steel rail welding operation, two sections of 25m short steel rails subjected to the pre-welding treatment (such as rust removal) are longitudinally conveyed to a rail welding vehicle and a grinding vehicle by a jacking conveying device 14, welding is finished at a welding module 7 by welding equipment, normalizing cooling and other treatments are carried out, and the treated 50m steel rails are longitudinally conveyed by the jacking conveying device 14. When the first rail joint reaches the position of the polishing module 9, the pretreated third 25m short rail is continuously welded at the welding module 7 to obtain a 75m rail. At the same time, the polishing module 9 polishes and inspects the first joint. And so on, the welding and polishing operations are continued synchronously until a long rail with the required length (such as 100 m) is obtained. After the long steel rail with the required length is obtained, the vertically arranged jacking and conveying device 13 continuously drives the steel rail 23 to move longitudinally, the jacking and conveying device 14 descends after the long steel rail arrives on the rail transportation vehicle, the long steel rail falls onto the transverse pushing device 14, the transverse pushing device 14 horizontally moves transversely, the long steel rail is sequentially stored on the rail storage table 19, and rail welding and polishing operation is completed.

In the continuous rail welding operation system described in example 3, during rail unloading, rail grinding operation is performed on the ground, the first skylight only performs welding and unloading of the rail 23, and the next skylight performs grinding operation of the rail welded joint (performed manually on the ground).

The continuous rail welding operation system described in embodiment 3 eliminates the fastener disassembling vehicle and the transition vehicle, greatly reduces the length of the whole vehicle, saves space, is convenient for the whole vehicle to be stored in a subway storage line, has high automation degree and flexible grouping, and is well suitable for the operation working condition in a subway tunnel and the characteristic of short skylight for the rail changing construction operation of the subway.

Example 4

As shown in fig. 10, another embodiment of the continuous welding track operation system based on the rail transportation system of embodiment 1 specifically includes:

a tractor 1;

a plurality of first trolleys 2 for storing and transporting rails 25;

and at least one second trolley 3 provided with a welding module 7.

A polishing module 9 is arranged on the first flat car 2 connected with the second flat car 3.

The tractor 1, the first flatcar 2 and the second flatcar 3 are connected in sequence.

In the rail distribution operation state, the short steel rail on the rail distribution vehicle 4 is conveyed to the second flat vehicle 3, and the short steel rail is welded into a long steel rail by the welding module 7. The long steel rail is conveyed to the first flat wagon 2 again, and the long steel rail is stored on the first flat wagon 2 after being subjected to welding seam polishing treatment by a polishing module 9.

In the rail unloading operation state, the long rail on the first flatcar 2 is conveyed to the second flatcar 3, the long rail is welded into a longer long rail by the welding module 7 and then unloaded to the ground, and the rail 25 is polished on the ground.

A plurality of jacking and conveying devices 13 are arranged on the first flatcar 2 and the second flatcar 3 at intervals along the longitudinal direction, and the jacking and conveying devices 13 are used for jacking and longitudinally conveying the steel rails 23.

The second flatcar 3 is provided with a pushing device 15, the pushing device 15 drives a steel rail 23 to move through a traction device 16, and the first flatcar 2 is provided with a fixed pulley 17. When the steel rail 23 is required to be conveyed to the first flatcar 2 for storage, one end of the traction device 16 is connected with the steel rail 23 after passing through the fixed pulley 17, and the other end is connected with the pushing device 15. When it is desired to unload the rail 23 to the ground, the traction means 16 is connected at one end to the rail 23 and at the other end to the pusher 15.

The polishing module 9 is arranged on the rail transportation vehicle and is spaced 25m from the welding module 7, so that polishing can be synchronously carried out with welding and rust removal treatment, and the working efficiency is greatly improved.

The other more detailed technical solutions may be specifically described with reference to embodiment 3, and will not be described herein.

Example 5

As shown in fig. 11, a third embodiment of a continuous welding track operation system based on the rail transportation system of embodiment 1 specifically includes:

a plurality of first trolleys 2 for storing and transporting rails 23;

And at least one second trolley 3 provided with a welding module 7.

A plurality of jacking and conveying devices 13 are arranged on the first flatcar 2 and the second flatcar 3 at intervals along the longitudinal direction, and the jacking and conveying devices 13 are used for jacking the steel rail 23 and driving the steel rail 23 to longitudinally move so as to realize longitudinal conveying operation.

In the rail distribution operation state, the short steel rail on the rail distribution vehicle 4 is conveyed to the second flat carriage 3, the short steel rail is welded into the long steel rail by the welding module 7, and the long steel rail is conveyed to the first flat carriage 2 for storage.

The continuous track welding operation system further comprises a track distribution vehicle 4 connected with the second trolley 3 in a track distribution operation state, and a polishing module 9 is arranged on the track distribution vehicle 4.

In the rail-matching operation state, the short rail is conveyed from the rail-matching vehicle 4 to the second flat carriage 3, and the short rail is welded into the long rail by the welding module 7. The long steel rail is reversely conveyed to the rail distribution vehicle 4, welded seam polishing treatment is carried out by the polishing module 9, the long steel rail is stored on the first flat vehicle 2, and the welding module 7 is used for welding the joint of the next steel rail 23.

In the continuous rail welding operation system described in example 5, during rail unloading, rail grinding operation is performed on the ground, the first skylight only performs welding and unloading of the rail 23, and the next skylight performs grinding operation of the rail welded joint (performed manually on the ground).

Example 6

A fourth embodiment of the continuous rail welding operation system based on the rail transportation system according to embodiment 1, based on the foregoing embodiments 3 to 5, further includes a rail unloading vehicle 5 connected to the second carriage 3 in a rail unloading operation state, and after the long rail is welded into a longer long rail by the welding module 7, the rail 23 is unloaded to the center or the side of the track through the rail unloading vehicle 5, and the grinding operation of the rail 23 is performed manually at the next skylight point. For example: in one embodiment shown in fig. 12, the continuous track welding operation system comprises a tractor 1, a first flatcar 2, a second flatcar 3 and a track unloading car 5 which are sequentially connected in a track unloading operation state, and a welding module 7 is arranged on the second flatcar 3.

In this embodiment, the rail welding machine (i.e., the second flatcar 3) only performs the welding treatment of the steel rail 23, and the normalizing treatment may be performed by normalizing equipment on the rail welding machine, or may be performed manually under the rail (the rail may be immediately removed after the welding treatment to perform the welding of the next steel rail 23) in order to improve the working efficiency. The grinding operation of the rail 23 is performed manually at the next skylight point.

If an integral conveying mode is adopted, the conveying of the steel rail 23 is realized by integral conveying of the jacking conveying device 13 and the transverse pushing device 14 during rail unloading.

Example 7

A fifth embodiment of the continuous rail welding operation system based on the rail transportation system according to embodiment 1, based on the foregoing embodiments 3 to 5, the continuous rail welding operation system further includes a rail changing truck 6 connected to the second truck 3 in a rail unloading operation state, and the welding module 7 welds the long rail into a longer long rail bar, and then unloads the rail 23 to the center or the side of the track through the rail changing truck 6; or the rail 23 is directly changed into the rail bearing groove through the rail changing machine 6. For example: in one embodiment shown in fig. 13, the continuous track welding operation system comprises a tractor 1, a first flatcar 2, a second flatcar 3 and a track changing car 6 which are sequentially connected in a track unloading operation state, and a welding module 7 is arranged on the second flatcar 3.

In the description of the present application, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

By implementing the technical scheme of the steel rail transportation system and the operation method described by the specific embodiment of the application, the following technical effects can be produced:

(1) The steel rail transportation system and the operation method described in the specific embodiment of the application realize the stable transportation and the transportation of the whole steel rail through the jacking and conveying device and the transverse pushing device, fully realize the automation of the transportation process, effectively ensure the quality of the steel rail while saving the space, and are particularly suitable for being used as a rail storage part and a rail transportation part to be connected and combined with construction vehicles such as a rail unloading part, a rail changing part and the like in the construction environment with narrow space such as subways;

(2) The steel rail transportation system and the operation method described in the specific embodiment of the application have the advantages of high automation degree, space saving and whole vehicle length, realization of rail welding, rail transportation, rail unloading and rail changing, more flexible grouping and operation modes, high mechanization degree, improvement of operation efficiency, saving of a large amount of manpower and good adaptability to the characteristic of short skylight period of subway rail changing operation;

(3) According to the steel rail transportation system and the operation method, the middle arched rail storage frame is matched with the longitudinal jacking conveying device and the transverse pushing device, stress concentration cannot be generated in the steel rail conveying process, meanwhile, the walking way is arranged for walking and placing other equipment, and the purpose that the steel rail can be stored on the rail transportation flat car, and the operation device can be placed by people is achieved.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by a difference from other embodiments, and identical and similar parts between the embodiments are referred to each other.

The above description is only of the preferred embodiment of the present application, and is not intended to limit the present application in any way. While the application has been described in terms of preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present application or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present application. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present application still fall within the scope of the technical solution of the present application, unless departing from the technical solution of the present application.

Claims

1. A rail transportation system, comprising:

a first flatcar (2) for storing and transporting rails (23);

a plurality of jacking conveying devices (13) are arranged on the first flat car (2) at intervals along the longitudinal direction, and the jacking conveying devices (13) are used for jacking and longitudinally conveying the steel rail (23);

the first flatcar (2) is also provided with a transverse pushing device (14), and the transverse pushing device (14) is used for integrally conveying the steel rail (23) on the jacking conveying device (13) to a designated position on the first flatcar (2) along the transverse direction;

when the steel rail (23) is loaded, after the steel rail (23) is conveyed to a designated position from one end of the first flatcar (2) through the jacking conveying device (13), the jacking conveying device (13) descends, and the steel rail (23) falls onto the transverse pushing device (14); the transverse pushing device (14) integrally conveys the steel rail (23) to a designated position on the first flatcar (2) along the transverse direction for storage.

2. The rail transportation system of claim 1, wherein: when unloading the steel rail (23), the transverse pushing device (14) moves transversely to push the stored steel rail (23) to a designated position, and the jacking conveying device (13) ascends and jacks the steel rail (23) to longitudinally convey the steel rail (23) to leave the first flatcar (2).

3. Rail transportation system according to claim 1 or 2, characterized in that: the transverse pushing devices (14) are arranged at intervals in pairs along the longitudinal direction of the first flat car (2), and the steel rails (23) are moved to two sides of the first flat car (2) transversely to be stored.

4. A rail transportation system as claimed in claim 3, wherein: the rail storage platform (19) for storing the steel rail (23) is arranged on the first flat car (2), an arch (20) for passing through the steel rail (23) is arranged in the middle of the first flat car (2) in the longitudinal direction, and the arch (20) is simultaneously positioned at the upper part of the jacking conveying device (13).

5. The rail transportation system of claim 4, wherein: the upper part of the rail storage table (19) is provided with a walkway (1) for personnel to walk and place equipment on two sides of the arch (20) along the transverse direction, and the outer side of the walkway (18) is provided with a guardrail (21).

6. The rail transportation system of claim 1, 2, 4 or 5, wherein: the first flatcars (1) of a plurality of flatcars are connected to form a storage space of a steel rail (23) with a required length.

7. The rail transportation system of claim 6, wherein: a fixed pulley (17) is arranged on the first flatcar (2); when the steel rail (23) is required to be conveyed to the first flatcar (2) for storage, one end of the traction device (16) is connected with the steel rail (23) through the fixed pulley (17), and the other end of the traction device is connected with the pushing device (15); when the steel rail (23) is required to be unloaded onto the ground, one end of the traction device (16) is connected with the steel rail (23), and the other end is connected with the pushing device (15).

8. A rail transportation operation method, comprising the steps of:

s1) before rail transportation operation, when a steel rail (23) is loaded, a plurality of first flat cars (2) are connected and hung through couplers (11), the steel rail (23) is conveyed to a jacking conveying device (13) from one end of the first flat cars (2), and the steel rail (23) is pushed to a specified position through the jacking conveying device (13);

s2) the jacking and conveying device (13) descends to enable the steel rails (23) to fall onto the transverse pushing device (14), the transverse pushing device (14) transversely moves to a designated position, and a plurality of steel rails (23) are sequentially stored below the rail storage table (21);

s3) during rail transportation operation, grouping the first flatcar (2) and the tractor (1), and transporting and transferring the steel rail (23);

s4) after rail transportation operation, when the steel rail (23) is unloaded, the transverse pushing device (14) transversely moves to push the stored steel rail (23) to the middle position, the lifting conveying device (14) lifts the steel rail (23) and pushes the steel rail (23) longitudinally to leave the first flatcar (2).

9. The rail transportation operation method according to claim 8, wherein: before the rail transportation operation, the short steel rail is welded into a long steel rail, and the long steel rail is conveyed to the first flatcar (2) through the jacking conveying device (13).

10. A rail transportation operation method according to claim 8 or 9, wherein: before the rail unloading operation, the long rail is welded into a longer long rail bar after the rail (23) is conveyed by the jacking conveying device (13) to leave the first flat car (2).

11. A rail transportation operation method according to claim 10, wherein: in the step S2), the transverse pushing device (14) moves towards the two transverse sides of the first flatcar (2), and a plurality of steel rails (23) are sequentially stored in the spaces at the two sides below the rail storage table (19).

12. A rail transportation operation method according to claim 8, 9 or 11, wherein: in the step S1), the steel rail (23) is conveyed to the jacking and conveying device (13) of the first flatcar (2) from one end through the space of the middle arch (20) of the rail storage table (19).

13. A rail transportation operation method according to claim 12, wherein: in the step S4), the jacking and conveying device (13) jacks up the steel rail (23) to reach the space of the middle arch (20) of the rail storage platform (19), and pushes the steel rail (23) to leave the first flatcar (2) along the longitudinal direction.