Large cargo yard container flexible moving catenary and operating method

Abstract

This invention relates to a flexible mobile contact network for large freight yard containers and its operating method. It includes at least several supporting structures and a hydraulic drive device, as well as catenary cables and / or contact wires. The catenary cables and / or contact wires are directly or indirectly mounted on the supporting structures. The hydraulic drive device directly or indirectly provides driving force to control the catenary cables and / or contact wires, causing the supporting structures to rotate to a working position or a non-working position, or to switch between working and non-working positions. This flexible contact network offers advantages such as more uniform stress on the catenary cables, more stable and reliable driving, shorter construction period, less susceptibility to weather and temperature differences, wide applicability in various harsh environments, long service life, and the ability to improve upon existing contact networks, while also facilitating installation and maintenance.

Description

Technical Field

[0001] This invention belongs to the field of mobile contact network for electrified railways, specifically relating to flexible mobile contact network for large freight yard containers and its operation method. Background Technology

[0002] With the advancement of railway electrification, electric locomotives have replaced diesel locomotives in the transportation of China's main railway lines. Electrification is also implemented on freight loading and unloading lines or for maintenance in warehouses. Currently, rigid movable contact networks are used, but existing rigid movable contact network systems are extremely expensive, have complex structures, are inconvenient to install, have high requirements for line operating conditions, and have poor structural reliability. They use electric motors to drive rotating brackets to rotate, thereby moving the entire movable contact network section to one side of the rail. In this method, the busbar is installed as a whole at the end of the rotating bracket, and there are many electric motors, making it difficult to control the synchronization of the electric motors or electric push rods.

[0003] On the other hand, existing technologies also use flexible movable contact networks, where a motor directly drags the catenary cable on one side of the flexible contact network, causing the contact wire to move to the side of the rail. This method has defects such as insufficient drag force and unstable operation for a long movable contact network with a whole anchor section. Since it only uses one weight, the length of the movable contact network is generally no more than 800m.

[0004] Heavy-haul trains, with a capacity of 10,000 tons, are ultra-long and ultra-heavy freight trains operated by two or more locomotives. Their characteristics include: large vehicle carrying capacity and a large number of cars in the train. According to existing major railway technical policies, for 5,000-ton heavy-haul freight trains, the effective length of the arrival and departure tracks at stations is 1050 meters; for 10,000-ton heavy-haul freight trains operating on dedicated coal transport lines, the effective length of the arrival and departure tracks at some stations is 1700 meters. These include unit-type heavy-haul trains, combined heavy-haul trains, and full-train heavy-haul trains.

[0005] For long-distance heavy-haul trains, such as 10,000-ton trains with a length of 1400m to 1700m, shunting operations using diesel locomotives require the separation of multiple cars, and current technology is costly, necessitating the rental of diesel cars to be parked at loading and unloading points. When electric traction vehicles arrive at the loading and unloading points, diesel and electric traction vehicles need to be exchanged, resulting in extremely low efficiency. Furthermore, to enable the exchange of traction vehicles, new parking lines and track switching are required, increasing investment. Crucially, current diesel locomotives lack high-powered locomotives and cannot haul heavy-haul trains. Existing flexible overhead contact line technologies, including those currently in practical application and prior patent applications, do not include a flexible mobile overhead contact line capable of meeting the loading and unloading needs of 10,000-ton trains or for depot maintenance. Summary of the Invention

[0006] Through continuous research and practice, the applicant has discovered that in existing methods where a motor is used to directly or indirectly drive one end of the catenary and / or contact wire, the motor itself is very prone to damage. The weight of the weight is between 3 and 5 tons, and in current technical solutions, regardless of whether the cantilever support structure is in a working or non-working position, the motor must bear the weight of the weight. Therefore, to find a more effective and stable solution, this invention provides a flexible mobile contact network for large freight yard containers. This innovative structural design offers a new solution, effectively addressing the problem of motor damage during the operation of current mobile contact networks and ensuring the safe and stable operation of the mobile contact network.

[0007] To achieve the above solution, the present invention provides a flexible mobile contact network for large freight yard containers, which includes at least several support structures and hydraulic drive devices, and further includes catenary cables and / or contact wires; wherein

[0008] The catenary and / or contact wire are directly or indirectly installed on the support structure; the hydraulic drive device is used to directly or indirectly provide driving force to control the catenary and / or contact wire to rotate the support structure to a working position or a non-working position, or to switch between the working position and the non-working position.

[0009] Currently, no existing technology employs a hydraulic device to drive and control the switching of the catenary and contact wire between working and non-working positions. This invention uses a hydraulic device to directly or control the catenary and / or contact wire to rotate the support structure to a working or non-working position, or to switch between working and non-working positions. The driving force of the hydraulic device is more stable and reliable.

[0010] Furthermore, it also includes an auxiliary force providing device, wherein the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; and the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the catenary and / or contact wire.

[0011] Furthermore, the hydraulic drive device interacts with the auxiliary force providing device to drive the catenary and / or contact wire to rotate to the working position or to the non-working position, or to switch between the working position and the non-working position.

[0012] Furthermore, the auxiliary force providing device includes one or more of the following: a counterweight structure, a hydraulic device, a drive motor, and a push-pull device.

[0013] Furthermore, it includes any of the following structural forms:

[0014] The first method: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the counterweight structure acts directly or indirectly on the other end of the catenary and / or contact wire.

[0015] The second type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the drive motor acts directly or indirectly on the other end of the catenary and / or contact wire;

[0016] The third type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the push-pull device acts directly or indirectly on the other end of the catenary and / or contact wire;

[0017] The fourth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the hydraulic device acts directly or indirectly on the other end of the catenary and / or contact wire.

[0018] Fifth: The driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the drive motor work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire;

[0019] The sixth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the push-pull device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire;

[0020] The seventh type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the hydraulic device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire; or

[0021] Eighth type: The driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure, the drive motor and the push-pull device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire.

[0022] Furthermore, located at one end of the catenary and / or contact wire:

[0023] The hydraulic drive device provides driving force to drive the catenary and / or contact wire, thereby rotating the support structure to a working position or a non-working position, or switching between a working position and a non-working position; or

[0024] It also includes a counterweight structure, wherein the hydraulic drive device and the counterweight structure work together to provide driving force to control the structure to rotate to the working position or the non-working position, or to switch between the working position and the non-working position.

[0025] Furthermore, it also includes a lifting mechanism, wherein the hydraulic drive device provides driving force that acts directly or indirectly on the lifting mechanism, and the catenary and / or contact wire acts directly or indirectly on the lifting mechanism.

[0026] Furthermore, the driving force provided by the hydraulic drive device drives the lifting mechanism to rise or fall, thereby directly or indirectly driving the load-bearing cable and / or contact line to rotate the support structure to the working position or non-working position, or switching between the working position and non-working position.

[0027] Furthermore, it also includes a guide structure for providing guidance to the lifting mechanism during the operation of the hydraulic drive device.

[0028] Furthermore, the guide structure is set independently, or the guide structure is set directly or indirectly on the column or frame.

[0029] Furthermore, guide rails can be installed on the columns or separately installed support frames; or

[0030] On the main body of the column or a separately installed support frame, the extended side of the main body of the column or support frame in the length direction is used as the guide track of the guide structure;

[0031] Furthermore, the hydraulic drive device drives the lifting mechanism to rise or fall along the guide structure, thereby driving the load-bearing cable and / or contact line to rotate the support structure to a working position or a non-working position, or switching between a working position and a non-working position.

[0032] Furthermore, the hydraulic drive device has a single-stage lifting structure, or the hydraulic drive device includes two or more lifting structures.

[0033] Furthermore, it also includes a support member, which is used to support the counterweight structure and drive the counterweight structure to rise or fall.

[0034] Furthermore, one end of the load-bearing cable and / or the contact line acts directly or indirectly on the counterweight structure, and the support member drives the counterweight structure to rise or fall, driving the load-bearing cable and / or the contact line to rotate the support structure to a working position or a non-working position, or to switch between a working position and a non-working position.

[0035] Furthermore, the support member is directly or indirectly disposed on the lifting mechanism, and the support member is movable within the lifting mechanism.

[0036] Furthermore, during the process of the hydraulic drive device driving the lifting mechanism to move up and down, the supporting member can be driven to move relative to the lifting mechanism.

[0037] Furthermore, the stroke length of the support member as it rises or falls can be greater than or equal to twice the stroke length of the hydraulic drive device.

[0038] Furthermore, during the process of the hydraulic drive device driving the lifting mechanism to rise or fall, the hydraulic drive device also drives the support component to rise or fall synchronously on the lifting mechanism.

[0039] Furthermore, it includes a force transmission component, one end of which acts directly or indirectly on the support component, driving the support component to rise or fall synchronously on the lifting mechanism.

[0040] Furthermore, it also includes a steering component that can move up or down in tandem with the lifting mechanism.

[0041] Furthermore, the other end of the tension transmission component bypasses the steering component and acts downward on the fixed point.

[0042] Furthermore, during the process of the hydraulic drive device output shaft rising or retracting, it drives the steering component to rise or fall accordingly, thereby causing one end of the force transmission component to drive the support component to rise or fall synchronously.

[0043] Furthermore, in the first case:

[0044] The support component pulls the counterweight structure up from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the working position to the non-working position.

[0045] The support component drags the counterweight structure down from a higher position to a lower position, and the load-bearing cable and / or contact wire drives the support structure to rotate from the non-working position to the working position.

[0046] or

[0047] The second scenario:

[0048] The support component pulls the counterweight structure up from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the non-working position to the working position.

[0049] The supporting component pulls the counterweight structure down from a higher position to a lower position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the working position to the non-working position. Or

[0050] The third scenario: One end of the catenary and / or contact wire acts directly or indirectly on the support component;

[0051] The support member rises from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the non-working position to the working position.

[0052] The support member descends from a higher position to a lower position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the working position to the non-working position.

[0053] Furthermore, the weight of the counterweight structure at one end of the catenary and / or contact wire is greater than the weight of the counterweight structure at the other end of the catenary and / or contact wire.

[0054] Furthermore, the hydraulic drive device has a working state or a non-working state. When the hydraulic drive device is in the non-working state, the weight of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device.

[0055] The output shaft of the hydraulic drive unit extends or retracts to the working state;

[0056] When the output shaft of the hydraulic drive unit extends or retracts, it drives the heavier counterweight structure to rise or fall through the support component, thereby directly or indirectly controlling the load-bearing cable and / or contact wire to drive the support structure to rotate to the working position or non-working position, or to switch between the working position and non-working position.

[0057] Furthermore, in the first scenario: after the heavier counterweight structure at one end of the catenary and / or contact wire descends, the heavier counterweight structure can be placed directly or indirectly on the ground or on a separately installed support platform.

[0058] The second scenario: After the heavier counterweight structure at one end of the catenary and / or contact wire descends, the supporting component can rest directly or indirectly on the ground or on a separately installed support platform; or

[0059] The third scenario: After the counterweight structure at one end of the catenary and / or contact wire descends, the lifting structure can be directly or indirectly placed on the ground or on a separately installed support platform.

[0060] Another aspect of the present invention also provides a method for operating a mobile overhead contact line: the method employs the aforementioned flexible mobile overhead contact line for large freight yard containers, and includes at least the following steps:

[0061] The force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire, and the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the catenary and / or contact wire.

[0062] The hydraulic drive device directly or indirectly provides driving force to control the load-bearing cable and / or contact wire to rotate the support structure to the working position or non-working position, or to switch between the working position and non-working position.

[0063] Furthermore, one end of the load-bearing cable and / or the contact wire acts directly or indirectly on a heavier counterweight structure. The support component drives the counterweight structure to rise or fall, and drives the load-bearing cable and / or the contact wire to rotate the support structure to a working position or a non-working position, or to switch between the working position and the non-working position.

[0064] Furthermore, the stroke length of the support component when it rises or falls can be greater than or equal to twice the stroke length of the hydraulic drive device.

[0065] Furthermore, during the process of the hydraulic drive device output shaft rising or retracting, it drives the steering component to rise or fall accordingly, thereby causing one end of the force transmission component to drive the support component to rise or fall synchronously.

[0066] Furthermore, the hydraulic drive device has a working state or a non-working state. When the hydraulic drive device is in the non-working state, the weight of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device.

[0067] The output shaft of the hydraulic drive unit extends or retracts to the working state;

[0068] When the output shaft of the hydraulic drive unit extends or retracts, it drives the heavier counterweight structure to rise or fall through the support component, thereby directly or indirectly controlling the load-bearing cable and / or contact wire to drive the support structure to rotate to the working position or non-working position, or to switch between the working position and non-working position.

[0069] The present invention has the following beneficial effects:

[0070] 1. In this invention, a multi-stage lifting structure is used to increase the lifting and lowering of the counterweight structure (weight), and a shorter hydraulic drive device can be used to increase the stroke of the weight.

[0071] 2. A major highlight of this invention is that when the catenary and / or contact wire are in the working position (above the railway) or the non-working position (to the side of the railway), the weight of the counterweight structure itself does not act on the hydraulic drive structure. It should be further noted that in most cases in the mobile contact network, the catenary and / or contact wire are in the working position, in a standby state. In this situation, the hydraulic drive device is detached and in a non-working state. Only when it is necessary to rotate the support structure to the side of the railway is the hydraulic drive device used to directly or indirectly drive the counterweight structure to rise, driving the cantilever support structure to swing to the side of the railway and maintain it for a period of time. During this period, maintenance work on freight trains or loading and unloading of goods can be carried out. When the freight train needs to leave the station, the hydraulic drive device actuates to drive the catenary and contact wire to the working position, directly or indirectly supporting the counterweight structure on the ground. At this time, the hydraulic drive device is in a non-working state, its output shaft does not bear the weight of the counterweight structure, and the support structure in the mobile contact network is above the railway, in a standby state.

[0072] 3. The flexible contact wire provided by this invention has more uniform stress distribution, shorter construction period, less impact from weather, temperature difference and other factors, can be widely used in various harsh environments, has a long service life, can be improved on the basis of existing contact wires, and has many advantages such as convenient installation and maintenance, and similar fixed contact wire structure.

[0073] 4. By using the contact line provided by this invention, heavy-haul trains with a capacity of 10,000 tons will no longer need to use diesel locomotives for shunting operations. This overcomes the traditional need for multiple cars to be separated, or even the inability to haul heavy-haul trains. It can effectively meet the needs of loading and unloading cargo lines or warehouse maintenance for trains with a capacity of 10,000 tons, improve work efficiency, and greatly save the cost of purchasing diesel locomotives and the existing labor costs for dispatching, maintaining and repairing diesel locomotives. Attached Figure Description

[0074] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0075] Figure 1 This is a schematic diagram of the mobile contact wire structure of the present invention;

[0076] Figure 2 This is one of the schematic diagrams of the upgraded mobile contact wire counterweight structure of the present invention;

[0077] Figure 3 This is the second schematic diagram of the upgraded mobile contact network counterweight structure of the present invention;

[0078] Figure 4 yes Figure 3 Partial schematic diagram;

[0079] Figure 5 This is the third schematic diagram of the upgraded mobile contact network counterweight structure of the present invention.

[0080] In the diagram: 1. Support structure; 2. Hydraulic drive device; 3. Catenary cable; 4. Contact wire; 5. First counterweight structure; 6. Second counterweight structure; 7. Lifting mechanism; 8. Guide structure; 9. Support component; 10. Tension transmission component; 11. Steering component. Detailed Implementation

[0081] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses consistent with some aspects of the invention as detailed in the appended claims.

[0082] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment provides a flexible mobile contact network for large cargo yard containers, which includes at least several support structures 1 and hydraulic drive devices 2, as well as catenary cables 3 and / or contact wires 4; wherein, the catenary cables 3 and / or contact wires 4 are directly or indirectly arranged on the support structures 1; the hydraulic drive devices 2 are used to directly or indirectly provide driving force to control the catenary cables 3 and / or contact wires 4 to drive the support structures 1 to rotate to a working position or a non-working position, or to switch between a working position and a non-working position.

[0083] In the existing publicly available technology, there is no solution that uses a hydraulic device to drive and control the catenary 3 and contact wire 4 to switch between working and non-working positions. In this invention, a hydraulic device is used to directly or control the catenary 3 and / or contact wire 4 to drive the support structure 1 to rotate to a working or non-working position, or to switch between working and non-working positions. The driving force of the hydraulic device is more stable and reliable.

[0084] In a preferred embodiment, this example further includes an auxiliary force providing device. The driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary cable 3 and / or the contact wire 4; the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the catenary cable 3 and / or the contact wire 4. The hydraulic drive device 2 and the auxiliary force providing device interact to drive the catenary cable 3 and / or the contact wire 4 to rotate to a working position or to a non-working position, or to switch between the working and non-working positions.

[0085] In a preferred embodiment, the auxiliary force providing device in this embodiment includes one or more of the following: a first counterweight structure 5, a drive motor, a hydraulic device, and a push-pull device.

[0086] Includes any of the following structural forms:

[0087] The first method: the driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the force provided by the first counterweight structure 5 acts directly or indirectly on the other end of the catenary 3 and / or the contact wire 4.

[0088] The second method: the driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the force provided by the drive motor acts directly or indirectly on the other end of the catenary 3 and / or the contact wire 4.

[0089] The third type: the driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the force provided by the push-pull device acts directly or indirectly on the other end of the catenary 3 and / or the contact wire 4.

[0090] The fourth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the hydraulic device acts directly or indirectly on the other end of the catenary and / or contact wire.

[0091] Fifthly: The driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the first counterweight structure 5 and the drive motor work together to provide an auxiliary force acting on the other end of the catenary 3 and / or the contact wire 4;

[0092] The sixth type: the driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the first counterweight structure 5 and the push-pull device work together to provide an auxiliary force acting on the other end of the catenary 3 and / or the contact wire 4; or

[0093] The seventh type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the hydraulic device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire; or

[0094] Eighth type: The driving force provided by the hydraulic drive device 2 acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the first counterweight structure 5, the drive motor and the push-pull device work together to provide an auxiliary force acting on the other end of the catenary 3 and / or the contact wire 4.

[0095] As a preferred embodiment, it should be further noted in this embodiment that at one end of the catenary 3 and / or contact wire 4:

[0096] One embodiment: The hydraulic drive device 2 provides driving force to drive the load-bearing cable 3 and / or contact wire 4, thereby rotating the support structure 1 to a working position or a non-working position, or switching between the working position and the non-working position; or

[0097] Another implementation includes a second counterweight structure 6, wherein the hydraulic drive device 2 and the second counterweight structure 6 work together to provide driving force to control the rotation of the support structure 1 to the working position or the non-working position, or to switch between the working position and the non-working position.

[0098] In a preferred embodiment, this embodiment further includes a lifting mechanism 7. The hydraulic drive device 2 provides driving force that acts directly or indirectly on the lifting mechanism 7, and the support cable 3 and / or contact line 4 act directly or indirectly on the lifting mechanism 7. Preferably, the driving force provided by the hydraulic drive device 2 drives the lifting mechanism 7 to rise or fall, thereby directly or indirectly driving the support cable 3 and / or contact line 4 to rotate the support structure 1 to a working position or a non-working position, or to switch between the working position and the non-working position.

[0099] To ensure the stability of the lifting mechanism, this embodiment also includes a guide structure 8, which provides guidance for the lifting mechanism 7 during the operation of the hydraulic drive device 2. The guide structure 8 is independently installed, or it can be directly or indirectly installed on the column or frame.

[0100] Preferably, a guide rail is provided on the column or a separately provided support frame. Alternatively, the guide rail of the guide structure 8 can be provided on the main body of the column or the separately provided support frame, using the extended side of the main body in the length direction. The hydraulic drive device 2 drives the lifting mechanism 7 to rise or fall along the guide structure 8, thereby driving the load-bearing cable 3 and / or contact line 4 to rotate the support structure 1 to a working position or a non-working position, or to switch between the working position and the non-working position.

[0101] It should be noted that the hydraulic drive device 2 described in this embodiment has a single-stage lifting structure, or the hydraulic drive device 2 may include two or more lifting structures.

[0102] As a preferred embodiment, this embodiment also includes a support member 9, which is used to support the counterweight structure and drive the second counterweight structure 6 to rise or fall.

[0103] In this embodiment, one end of the load-bearing cable 3 and / or the contact line 4 acts directly or indirectly on the second counterweight structure 6. The support member 9 drives the counterweight structure to rise or fall, and drives the load-bearing cable 3 and / or the contact line 4 to rotate the support structure 1 to the working position or non-working position, or to switch between the working position and non-working position.

[0104] It should be further noted that, in this embodiment, the support member 9 is directly or indirectly disposed on the lifting mechanism 7, and the support member 9 is movable on the lifting mechanism 7. During the process of the hydraulic drive device 2 driving the lifting mechanism 7 to move up and down, the support member 9 can be driven to move relative to the lifting mechanism 7.

[0105] In practical engineering applications, the counterweight structure (the stroke of the weight rising and falling is generally around 5 meters). To effectively control the stroke, and considering stability and safety, this embodiment employs a two-stage lifting method to raise or lower the counterweight structure. The stroke length of the support member 9 rising or falling is greater than or equal to twice the stroke length of the hydraulic drive device 2. During the process of the hydraulic drive device 2 driving the lifting mechanism 7 to rise or fall, the hydraulic drive device 2 drives the support member 9 to rise or fall synchronously on the lifting mechanism 7.

[0106] This embodiment also includes a tension transmitting component 10. One end of the tension transmitting component 10 acts directly or indirectly on the support component 9, driving the support component 9 to rise or fall synchronously on the lifting mechanism 7. In this embodiment, the tension transmitting component 10 can be a pull rope; for improved stability, the pull rope can be a steel wire rope. Two steel wire ropes can be used. A steering component 11 is also included, which can rise or fall with the lifting mechanism 7. The other end of the tension transmitting component 10 passes around the steering component 11 and acts downwards on a fixed point.

[0107] like Figure 2 or Figure 3 As shown, one end of the wire rope acts on the support member 9, which can pull the support member 9 up or down. In this embodiment, the support member 9 is slidably set on the lifting structure. However, it is also feasible to separate the support member 9 from the lifting structure and set it separately. It is only necessary to add a guide device for the support member 9 to move up and down.

[0108] Therefore, during the process of the hydraulic drive device 2 output shaft rising or retracting in this embodiment, the steering component 11 is driven to rise or fall accordingly, thereby causing one end of the force transmission component 10 to drive the support component 9 to rise or fall synchronously.

[0109] It should be noted that the catenary cable 3 and contact wire 4 in the mobile overhead contact system are generally in the working position (above the railway) under normal circumstances. This is the case in most cases. However, depending on the actual working conditions, the catenary cable 3 and contact wire 4 can also be set to the non-working position (on the side of the railway) under normal circumstances.

[0110] Therefore, this embodiment is explained in two cases: the first case:

[0111] The support member 9 pulls the second counterweight structure 6 up from a lower position to a higher position, and the load-bearing cable 3 and / or contact line 4 drive the support structure 1 to rotate from the working position to the non-working position.

[0112] The support member 9 drags the second counterweight structure 6 down from a higher position to a lower position, and the load-bearing cable 3 and / or contact line 4 drive the support structure 1 to rotate from the non-working position to the working position.

[0113] or

[0114] The second scenario:

[0115] The support member 9 pulls the second counterweight structure 6 up from a lower position to a higher position, and the load-bearing cable 3 and / or contact line 4 drive the support structure 1 to rotate from the non-working position to the working position.

[0116] The support member 9 pulls the second counterweight structure 6 down from a higher position to a lower position, and the load-bearing cable 3 and / or contact line 4 drive the support structure 1 to rotate from the working position to the non-working position.

[0117] The third scenario is when there is no counterweight structure, and one end of the catenary and / or contact wire acts directly or indirectly on the support component.

[0118] The support member rises from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the non-working position to the working position.

[0119] The support member descends from a higher position to a lower position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the working position to the non-working position.

[0120] It should be noted that in this embodiment, the catenary 3 and the contact wire 4 need to maintain tension whether in the working position or not. In this embodiment, a first force providing device and a second force providing device are provided at each end of the mobile contact network. The force provided by the first force providing device acts directly or indirectly on one end of the catenary 3 and / or the contact wire 4; the force provided by the second force providing device acts directly or indirectly on the other end of the catenary 3 and / or the contact wire 4.

[0121] The first force-providing device includes a hydraulic drive device 2 installed at one end of the mobile contact network as described above, or the hydraulic drive device 2 and the second counterweight structure 6 work together to provide force.

[0122] The second force-providing device includes the auxiliary force-providing device described above, which includes one or more of the following: a counterweight structure, a drive motor, and a push-pull device.

[0123] In this embodiment, counterweight structures (weights) are set at both ends of the mobile contact network. The weight of the second counterweight structure 6 at one end of the catenary 3 and / or the contact wire 4 is greater than the weight of the first counterweight structure 5 at the other end of the catenary 3 and / or the contact wire 4.

[0124] In a preferred embodiment, the hydraulic drive device 2 has a working state or a non-working state. When the hydraulic drive device 2 is in the non-working state, the weight of the heavier second counterweight structure 6 does not directly or indirectly act on the output shaft of the hydraulic device.

[0125] The output shaft of the hydraulic drive device 2 extends or retracts to the working state;

[0126] When the output shaft of the hydraulic drive device 2 extends or retracts, it drives the heavier second counterweight structure 6 to rise or fall through the support member 9, thereby directly or indirectly controlling the load-bearing cable 3 and / or contact line 4 to drive the support structure 1 to rotate to the working position or non-working position, or to switch between the working position and non-working position.

[0127] In this embodiment, the remaining gravity of the second counterweight structure 6 after its descent must not directly or indirectly act on the hydraulic drive device 2. After the second counterweight structure 6 descends, the hydraulic drive device 2 needs to be in a non-operating state. To clarify, this non-operating state does not mean that the hydraulic drive device 2 itself is powered off; the control part of the hydraulic drive device 2 also needs to be energized. It only means that the weight of the descending second counterweight structure 6 can act on other support platforms, and the power output shaft of the hydraulic drive device 2 gradually transitions from bearing the weight of the second counterweight structure 6 to a non-bearing state until the hydraulic drive device 2 is in a non-operating state (not bearing the weight of the second counterweight). Of course, this is only the optimal state. In actual working conditions, after the second counterweight structure 6 descends, its weight can also be borne by the hydraulic drive structure.

[0128] To this end, several preferred implementation methods are provided. In the first case, after the heavier second counterweight structure 6 at one end of the catenary 3 and / or contact wire 4 is lowered, the heavier second counterweight structure 6 can be placed directly or indirectly on the ground or on a separately set support platform.

[0129] The second scenario: After the heavier counterweight structure at one end of the catenary 3 and / or contact wire 4 descends, the support component 9 can rest directly or indirectly on the ground or on a separately installed support platform; or

[0130] The third scenario: After the counterweight structure at one end of the catenary 3 and / or contact wire 4 descends, the lifting structure can be directly or indirectly placed on the ground or on a separately set support platform.

[0131] Another aspect of the present invention also provides a method for operating a mobile overhead contact line: the method employs the aforementioned flexible mobile overhead contact line for large freight yard containers, and includes at least the following steps:

[0132] The force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire, and the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the catenary and / or contact wire.

[0133] The hydraulic drive device directly or indirectly provides driving force to control the load-bearing cable and / or contact wire to rotate the support structure to the working position or non-working position, or to switch between the working position and non-working position.

[0134] Preferably, one end of the load-bearing cable and / or the contact wire acts directly or indirectly on a heavier counterweight structure. The support member drives the counterweight structure to rise or fall, and drives the load-bearing cable and / or the contact wire to rotate the support structure to a working position or a non-working position, or to switch between the working position and the non-working position.

[0135] Preferably, the stroke length of the support member when it rises or falls is greater than or equal to twice the stroke length of the hydraulic drive device.

[0136] Preferably, during the process of the hydraulic drive device output shaft rising or retracting, it drives the steering component to rise or fall accordingly, thereby causing one end of the force transmission component to drive the support component to rise or fall synchronously.

[0137] Preferably, the hydraulic drive device has a working state or a non-working state. When the hydraulic drive device is in the non-working state, the weight of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device.

[0138] The output shaft of the hydraulic drive unit extends or retracts to the working state;

[0139] When the output shaft of the hydraulic drive unit extends or retracts, it drives the heavier counterweight structure to rise or fall through the support component, thereby directly or indirectly controlling the load-bearing cable and / or contact wire to drive the support structure to rotate to the working position or non-working position, or to switch between the working position and non-working position.

[0140] The present invention has the following beneficial effects:

[0141] In this invention, a multi-stage lifting structure is used to increase the lifting and lowering of the counterweight structure (weight), and a shorter hydraulic drive device can be used to increase the stroke of the weight.

[0142] The most significant highlight of this invention is that, when the catenary and / or contact wire are in the working position (above the railway) or the non-working position (to the side of the railway), the weight of the counterweight structure itself does not act on the hydraulic drive structure. It should be further noted that in most cases in the mobile contact network, the catenary and / or contact wire are in the working position, in a standby state. In this situation, the hydraulic drive device is detached and in a non-working state. Only when it is necessary to rotate the support structure to the side of the railway is the hydraulic drive device used to directly or indirectly drive the counterweight structure to rise, driving the cantilever support structure to swing to the side of the railway and maintain it for a period of time. During this period, maintenance work on freight trains or loading and unloading of goods can be carried out. When the freight train needs to leave the station, the hydraulic drive device actuates to drive the catenary and contact wire to the working position, directly or indirectly supporting the counterweight structure on the ground. At this time, the hydraulic drive device is in a non-working state, its output shaft does not bear the weight of the counterweight structure, and the support structure in the mobile contact network is above the railway, in a standby state.

[0143] The flexible contact wire provided by this invention has more uniform stress distribution, shorter construction period, less impact from weather, temperature difference and other factors, can be widely used in various harsh environments, has a long service life, can be improved on the basis of existing contact wires, and has many advantages such as convenient installation and maintenance, and similar fixed contact wire structure.

[0144] By using the contact line provided by this invention, 10,000-ton heavy-haul trains will no longer need to use diesel locomotives for shunting operations. This overcomes the traditional situation where multiple cars need to be separated, or even where heavy-haul trains cannot be pulled. It can effectively meet the needs of loading and unloading lines or warehouse maintenance for 10,000-ton trains, improve work efficiency, and greatly save the cost of purchasing diesel locomotives and the existing labor costs for dispatching, maintaining and repairing diesel locomotives.

[0145] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A flexible mobile contact network for large freight yard containers, characterized in that: It includes at least several support structures and a hydraulic drive device, as well as a catenary and / or contact wire; wherein the catenary and / or contact wire is directly or indirectly disposed on the support structure; the hydraulic drive device is used to directly or indirectly provide driving force to control the catenary and / or contact wire to drive the support structure to rotate to a working position or a non-working position or switch between a working position and a non-working position. It also includes a lifting mechanism, wherein the hydraulic drive device provides driving force that acts directly or indirectly on the lifting mechanism, and the catenary and / or contact wire acts directly or indirectly on the lifting mechanism; The driving force provided by the hydraulic drive device drives the lifting mechanism to rise or fall, thereby directly or indirectly driving the load-bearing cable and / or contact line to rotate the support structure to the working position or non-working position, or to switch between the working position and non-working position. It also includes a guide structure for providing guidance to the lifting mechanism during the operation of the hydraulic drive device; It also includes a support component, which is used to support the counterweight structure and drive the counterweight structure to rise or fall. The hydraulic drive device includes a single-stage lifting structure, or the hydraulic drive device includes two or more stages of lifting structures; Includes a force transmission component, one end of which acts directly or indirectly on the support component, driving the support component to rise or fall synchronously on the lifting mechanism through the force transmission component; The hydraulic drive device has a working state or a non-working state. When the hydraulic drive device is in the non-working state, the weight of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device. The output shaft of the hydraulic drive unit extends or retracts to the working state; When the output shaft of the hydraulic drive unit extends or retracts, it drives the heavier counterweight structure to rise or fall through the support component, thereby directly or indirectly controlling the load-bearing cable and / or contact wire to drive the support structure to rotate to the working position or non-working position, or to switch between the working position and non-working position. The stroke length of the support component when it rises or falls can be greater than or equal to twice the stroke length of the hydraulic drive device.

2. The flexible mobile contact network for large freight yard containers according to claim 1, characterized in that: It also includes an auxiliary force providing device, wherein the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; and the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the catenary and / or contact wire.

3. The flexible mobile contact network for large freight yard containers according to claim 2, characterized in that: The hydraulic drive device interacts with the auxiliary force providing device to drive the catenary and / or contact wire to rotate to the working position or to the non-working position, or to switch between the working position and the non-working position.

4. The flexible mobile contact network for large freight yard containers according to claim 3, characterized in that: The auxiliary force providing device includes one or more of the following: a counterweight structure, a drive motor, a hydraulic device, and a push-pull device.

5. The flexible mobile contact network for large freight yard containers according to claim 4, characterized in that: Includes any of the following structural forms: First: The driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the counterweight structure acts directly or indirectly on the other end of the catenary and / or contact wire; The second type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the drive motor acts directly or indirectly on the other end of the catenary and / or contact wire; The third type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the push-pull device acts directly or indirectly on the other end of the catenary and / or contact wire; The fourth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the force provided by the hydraulic device acts directly or indirectly on the other end of the catenary and / or contact wire. Fifth: The driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the drive motor work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire; The sixth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the push-pull device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire; The seventh type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure and the hydraulic device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire; or the eighth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire; the counterweight structure, the drive motor, and the push-pull device work together to provide an auxiliary force acting on the other end of the catenary and / or contact wire.

6. The flexible mobile contact network for large freight yard containers according to any one of claims 1 to 5, characterized in that: Located at one end of the catenary and / or contact wire: the hydraulic drive device provides driving force to drive the catenary and / or contact wire to rotate the support structure to a working position or a non-working position, or to switch between the working position and the non-working position; or it may also include a counterweight structure, wherein the hydraulic drive device and the counterweight structure work together to provide driving force to control the rotation of the support structure to a working position or a non-working position, or to switch between the working position and the non-working position.

7. The flexible mobile contact network for large freight yard containers according to claim 6, characterized in that: The guide structure is set independently, or the guide structure is set directly or indirectly on the column or frame.

8. The flexible mobile contact network for large freight yard containers according to claim 7, characterized in that: A guide rail is provided on the column or a separately provided support frame; or the extended side of the column or support frame body in the length direction is used as the guide rail of the guide structure.

9. The flexible mobile contact network for large freight yard containers according to claim 7 or 8, characterized in that: The hydraulic drive device drives the lifting mechanism to rise or fall along the guide structure, which in turn drives the load-bearing cable and / or contact wire to rotate the support structure to the working position or non-working position, or switches between the working position and non-working position.

10. The flexible mobile contact network for large freight yard containers according to claim 9, characterized in that: One end of the catenary and / or the contact wire acts directly or indirectly on the counterweight structure. The support member drives the counterweight structure to rise or fall, and drives the catenary and / or the contact wire to rotate the support structure to the working position or non-working position, or to switch between the working position and non-working position.

11. The flexible mobile contact network for large freight yard containers according to claim 10, characterized in that: The support member is directly or indirectly mounted on the lifting mechanism, and the support member is movable within the lifting mechanism.

12. The flexible mobile contact network for large freight yard containers according to claim 11, characterized in that: During the process of the hydraulic drive device driving the lifting mechanism to move up and down, the support member can be driven to move relative to the lifting mechanism.

13. The flexible mobile contact network for large freight yard containers according to claim 11 or 12, characterized in that: During the process of the hydraulic drive device driving the lifting mechanism to rise or fall, the hydraulic drive device drives the support component to rise or fall synchronously on the lifting mechanism.

14. The flexible mobile contact network for large freight yard containers according to claim 13, characterized in that: It also includes a steering component that can move up or down with the lifting mechanism.

15. The flexible mobile contact network for large freight yard containers according to claim 14, characterized in that: The other end of the tension transmission component passes around the steering component and acts downward on the fixed point.

16. The flexible mobile contact network for large freight yard containers according to claim 15, characterized in that: During the process of the output shaft of the hydraulic drive device rising or retracting, it drives the steering component to rise or fall accordingly, thereby causing one end of the force transmission component to drive the support component to rise or fall synchronously.

17. The flexible mobile contact network for large freight yard containers according to any one of claims 14 to 16, characterized in that: First scenario: The support component pulls the counterweight structure up from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the working position to the non-working position. The support component drags the counterweight structure down from a higher position to a lower position, and the load-bearing cable and / or contact wire drives the support structure to rotate from the non-working position to the working position. The second scenario: The support component pulls the counterweight structure up from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the non-working position to the working position. The support component drags the counterweight structure down from a higher position to a lower position, and the catenary and / or contact wire drives the support structure to rotate from the working position to the non-working position; or a third case: one end of the catenary and / or contact wire acts directly or indirectly on the support component. The support member rises from a lower position to a higher position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the non-working position to the working position. The support member descends from a higher position to a lower position, and the load-bearing cable and / or contact wire drive the support structure to rotate from the working position to the non-working position.

18. The flexible mobile contact network for large freight yard containers according to claim 17, characterized in that: The weight of the counterweight structure at one end of the catenary and / or contact wire is greater than the weight of the counterweight structure at the other end of the catenary and / or contact wire.

19. The flexible mobile contact network for large freight yard containers according to claim 18, characterized in that: In the first scenario: after the heavier counterweight structure at one end of the catenary and / or contact wire descends, the heavier counterweight structure can be placed directly or indirectly on the ground or on a separately installed support platform. The second scenario: After the counterweight structure at one end of the catenary and / or contact wire descends, the supporting component can be directly or indirectly placed on the ground or on a separately set support platform; or the third scenario: After the counterweight structure at one end of the catenary and / or contact wire descends, the lifting structure can be directly or indirectly placed on the ground or on a separately set support platform.

20. A method for operating a mobile overhead contact line, characterized in that: The operation method adopts the large cargo yard container flexible mobile contact network according to any one of claims 1 to 19, and includes at least the following steps: the force provided by the hydraulic drive device acts directly or indirectly on one end of the catenary and / or contact wire, and the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the catenary and / or contact wire. The hydraulic drive device directly or indirectly provides driving force to control the load-bearing cable and / or contact wire to rotate the support structure to the working position or non-working position, or to switch between the working position and non-working position.

21. The mobile overhead contact line operation method according to claim 20, characterized in that: One end of the catenary and / or the contact wire acts directly or indirectly on the heavier counterweight structure. The support component drives the counterweight structure to rise or fall, and drives the catenary and / or the contact wire to rotate the support structure to the working position or non-working position, or to switch between the working position and non-working position.

22. The mobile overhead contact line operation method according to claim 21: characterized in that: During the process of the output shaft of the hydraulic drive device rising or retracting, it drives the steering component to rise or fall accordingly, thereby causing one end of the force transmission component to drive the support component to rise or fall synchronously.

23. The mobile overhead contact line operation method according to claim 22, characterized in that: The hydraulic drive device has a working state or a non-working state. When the hydraulic drive device is in the non-working state, the weight of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device. The output shaft of the hydraulic drive unit extends or retracts to the working state; When the output shaft of the hydraulic drive unit extends or retracts, it drives the heavier counterweight structure to rise or fall through the support component, thereby directly or indirectly controlling the load-bearing cable and / or contact wire to drive the support structure to rotate to the working position or non-working position, or to switch between the working position and non-working position.

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