Compensating swing arm movement catenary and method of operation

Abstract

A kind of compensation swing arm moves contact network and operating method, the mobile contact network includes several support structures (3) and force body (1), the force body (1) is driven to be able to move relative to the support structure (3), one or more support structures (3) are directly or indirectly driven to rotate in the process of the force body (1) movement.The mobile contact network can eliminate construction error and the influence of thermal expansion and contraction, prevent support structure rotation not in place.

Description

Technical Field

[0001] This invention belongs to the field of mobile contact network for electrified railways, specifically relating to a compensating swing arm mobile contact network and its operation method. Background Technology

[0002] Traditional railway freight loading and unloading uses diesel locomotives to pull freight cars into and out of the loading and unloading area. This method requires changing traction locomotives, is difficult to schedule, inefficient, and wastes resources. For heavy-load trains, multiple diesel locomotives are often needed to meet the traction requirements. Some coal mining departments use electric locomotives to glide across the loading and unloading area, creating a de-energized zone to ensure safety. However, this method makes it difficult to control the locomotive's stopping point. If the stopping position is not properly controlled and the electric locomotive stops in a de-energized zone, high rescue costs are required to move the train to an energized area.

[0003] With the advancement of railway electrification, electric locomotives are gradually replacing diesel locomotives in China's main railway lines. Electrification of freight loading / unloading lines or depot maintenance utilizes rigid, movable contact wire systems. However, existing rigid movable contact wire systems are complex in structure, inconvenient to install, have high requirements for line operating conditions, and suffer from poor structural reliability. For movable contact wire sections moving along one side of the rail, one method is to use an electric motor to drag the catenary cable, shifting the contact wire to one side of the rail. This method suffers from insufficient drag force and operational instability for long-distance movable contact wires. Another method uses an electric motor or electric actuator to drive a rotating support, thereby shifting the entire movable contact wire section to one side of the rail. In this method, the busbar is installed as a single unit at the end of the rotating support, making it difficult to control the synchronization of the electric motor or electric actuator drive.

[0004] With the reform and innovation of electrified railway technology, the goal of continuous innovation by those skilled in the art is to provide electrified contact networks that can continuously meet the needs of cargo loading and unloading lines or warehouse maintenance. Summary of the Invention

[0005] The existing flexible movable contact network has the following shortcomings:

[0006] Thermal expansion and contraction can cause the contact wire and catenary to extend, leading to pantograph-catenary faults (faults in the train's pantograph and contact wire). This can result in serious safety accidents such as the compensation device adjusting the wire tension falling to the ground, the cantilever arm shifting, or the positioner detaching. If the contact wire becomes slack and gets tangled around the train's pantograph (a horizontal plate raised high above the locomotive), it can pull down the contact wire pole, causing the locomotive to derail and the carriages to tip over, with extremely serious consequences.

[0007] The catenary and contact wire are fixedly installed on the rotating cantilever arm. There are construction errors in the spacing between the columns, the verticality, and the tension of the catenary and contact wire between the cantilever arms.

[0008] For 5000t heavy-haul freight trains, the effective length of the arrival and departure tracks at some stations is 1050m. For 10000t heavy-haul freight trains operating on dedicated coal transport lines, the effective length of the arrival and departure tracks at some stations is 1700m. For such long-distance heavy-haul trains, such as 1400m to 1700m heavy-haul trains, due to the effects of thermal expansion and contraction and construction errors, the mobile contact wire may not swing properly when it swings over or to the side of the railway.

[0009] The current practice is to install a weight at one end of the mobile contact wire and a dragging mechanism at the other end. The dragging mechanism pulls the catenary and / or contact wire to move the contact wire from one side of the rail to above the rail or from above the rail to one side of the rail.

[0010] Through the applicant's continuous research and practice, the above solution can drive the catenary and / or contact wire to move to one side or above the rail. However, a new problem arises in actual use: When the cantilever arm is set to rotate to the right to move the contact wire and catenary to one side of the rail, due to the thermal expansion and contraction characteristics of the contact wire and catenary, when the rightmost cantilever arm moves to one side of the rail (the cantilever arm is nearly parallel to the rail), the other cantilever arms do not fully swing to one side of the rail. The further the rotating cantilever arm is from the rightmost cantilever arm, the smaller its offset. When the rightmost cantilever arm stops swinging, the other cantilever arms have not yet rotated to their positions. This is especially problematic for long-distance heavy-haul trains with mobile overhead contact lines of about 1600 meters. When the rightmost cantilever arm stops swinging after it reaches its position, the other cantilever arms, which are far from the rightmost cantilever arm, are still not fully swung, or are even positioned above or to the side of the rail. This can affect the loading and unloading of large freight yards, containers, and other cargo. In addition, due to the incomplete swinging, there may be poor contact or inability to make contact with the pantograph to obtain power, which can affect the entry or exit of freight trains.

[0011] The applicant has included the defects in the description of the invention to illustrate that the formulation of the technical problem is also part of the creation of this invention, and there is no solution to the technical problem in the current public technology.

[0012] The existing flexible contact network technology, including the technology currently in practical application and the prior patent application documents, does not disclose this defect and related solutions. The applicant is confident that it is the first in the industry to provide a solution to this technical defect. If this defect cannot be solved, it will directly affect the operation of the mobile contact network and cause safety hazards in the commercial application of the mobile contact network. Therefore, the applicant has conducted research and provided a complete solution and applied for intellectual property protection for it.

[0013] To achieve the above objectives, the applicant provides a technical solution that effectively addresses the shortcomings of existing mobile contact networks in terms of the movement of the catenary and contact wire. This solution is lower in cost, more reliable in operation, less affected by weather, and simpler to maintain compared to rigid contact networks. Furthermore, the contact network provided in this application overcomes the shortcomings of the original dragging method for movement, instead using gravity-assisted movement.

[0014] This technical solution can be implemented as a whole in freight loading and unloading yards, and can also be effectively improved based on the existing overhead contact system to achieve integrated movement over longer distances (1600m-1700m). In addition to meeting the needs of freight train loading and unloading lines or warehouse maintenance for existing locomotives, it can also be effectively applied to heavy-haul trains such as 10,000-ton trains.

[0015] To achieve the above objectives, the traditional approach is to fix the catenary and contact wire to a rotating bracket, and then move them from one side of the rail to above or vice versa as the bracket rotates. Through continuous research and innovation, the applicant has proposed a revolutionary solution: the catenary and contact wire are not fixed to the rotating bracket. This allows them to rotate without being affected by construction errors or thermal expansion and contraction.

[0016] The applicant proposes two technical approaches. The first is to allow the catenary cable to move directly back and forth on the supporting structure, eliminating the need for traditional catenary cable clamps and contact wire contact seats. The second is to transmit the tension or thrust generated during the catenary cable's movement to the supporting structure via a force transmission component, thereby pushing or pulling the supporting structure to rotate. Alternatively, the supporting structure can be driven to rotate, and the force generated during this rotation can be transmitted to the catenary cable via a force transmission component, thus moving the catenary cable. The core idea is that the catenary cable is not fixed to the supporting structure. Only by being non-fixed can the effects of construction errors be overcome, as well as the problem of incomplete rotation due to thermal expansion and contraction. Furthermore, only by being non-fixed can further compensation be achieved. This is the biggest innovation of this patent and the biggest difference from existing technologies, bringing beneficial effects and solving technical problems that existing technologies cannot address.

[0017] To achieve the above objectives, the first aspect of the present invention provides a compensating swing arm moving contact network, applied in the field of moving contact networks, comprising a plurality of support structures and a force-bearing body; wherein

[0018] The force-bearing body can be driven to move, and the force-bearing body directly or indirectly applies the driving force it receives to one or more supporting structures.

[0019] State 1: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; the force-bearing body can have a relative movement relationship with some or all of the supporting structures;

[0020] State 2: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; the force-bearing body can have no relative movement relationship with some or all of the supporting structures;

[0021] State 3: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; during the process of the supporting structures in the moving contact network rotating from the working position to the non-working position, in the first moving stage, the force-bearing body can be relatively free from relative movement with some or all of the supporting structures; in the second moving stage, the force-bearing body can be relatively free from relative movement with some or all of the supporting structures.

[0022] State 4: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; during the process of the supporting structures in the moving contact network rotating from the non-working position to the working position, in the first moving stage, the force-bearing body can have a relative moving relationship with some or all of the supporting structures; in the second moving stage, the force-bearing body can not have a relative moving relationship with some or all of the supporting structures.

[0023] When the mobile overhead contact line switches between working and non-working positions, the relationship between the force-bearing body and the supporting structure includes any one of the above states one to four, or a combination of two or more states.

[0024] Furthermore, the force-bearing body can be moved by pulling and / or drawing, and during the movement, the force-bearing body and its corresponding supporting structures have at least the following relationship:

[0025] First: During the movement of the force-bearing body, it directly or indirectly drives several supporting structures to rotate, and the force-bearing body and the corresponding supporting structure can move relative to each other;

[0026] Second: During the movement of the force-bearing body, it directly or indirectly drives the rotation of several supporting structures, and there is no relative movement between the force-bearing body and the corresponding supporting structure;

[0027] Third: During the switching between the working position and the non-working position of the mobile contact network, when some of the supporting structures stop rotating, the force-bearing body can still move further relative to the stopped supporting structures.

[0028] During the movement of the force-bearing body, the relationship between the force-bearing body and each corresponding support structure may be any of the above-mentioned relationships, a combination of two relationships, or all three relationships.

[0029] Furthermore, during the movement of the force-bearing body, it directly or indirectly drives at least one supporting structure to rotate from the working position to the non-working position; or

[0030] During the movement of the force-bearing body, at least one supporting structure is directly or indirectly driven to rotate from the non-working position to the working position; or

[0031] During the movement of the force-bearing body, at least one support structure is directly or indirectly driven to switch between the working position and the non-working position.

[0032] Furthermore, during the process of the force-bearing body being driven to move, directly or indirectly causing at least one support structure to rotate from the working position to the non-working position, each support structure can rotate from above the railway at a large angle to a small angle to the side of the railway, so that each support structure is in the non-working position state, or

[0033] During the process of the force-bearing body being driven to move, it directly or indirectly drives at least one support structure to rotate from the non-working position to the working position; each support structure can rotate from the side of the railway from a small angle to a large angle to above the railway, so that each support structure is in the working position state.

[0034] Furthermore, the number of supporting structures in the mobile contact network is defined as M, and the number of supporting structures rotated to the non-working position is defined as N; where M is greater than or equal to 2, N is greater than or equal to 1, and M is greater than or equal to N;

[0035] After N support structures rotate to the non-working position, the force-bearing body can move further, thereby driving the remaining (MN) support mechanisms to rotate further to the non-working position.

[0036] Furthermore, during the process of several support structures in the mobile contact network rotating from the working position to the non-working position, N support structures can first rotate to the non-working position, and then the remaining (MN) support structures can rotate to the non-working position respectively, until the number N of support structures that have rotated to the non-working position is equal to the number M of support structures in the mobile contact network.

[0037] Furthermore, some of the support structures stop rotating after rotating to the non-working position;

[0038] The force-bearing body can be further moved on the stopped rotating support structure, and the moved force-bearing body directly or indirectly drives the remaining (MN) support mechanisms to the non-working position.

[0039] Furthermore, the force-bearing body can move relative to the supporting structure; or

[0040] The force-bearing body can slide directly or indirectly on the support structure.

[0041] Furthermore, in at least one support structure, during the process of rotating from the working position to the non-working position or from the non-working position to the working position, the maximum horizontal movement distance of the force-bearing body in the horizontal direction can be greater than the maximum horizontal distance of the corresponding support structure's rotation; or

[0042] The maximum horizontal movement distance of the stressed body in the horizontal direction can be greater than the length of the rotation radius of the supporting structure.

[0043] Furthermore, when the first supporting structure in the mobile contact network stops rotating, the force-bearing body can be driven to move further on the stopped supporting structure.

[0044] Furthermore, it also includes a force transmission mechanism, which is used to directly or indirectly apply the thrust or tension generated during the movement of the force-bearing body to the support structure, thereby pushing or pulling the support structure to rotate.

[0045] Furthermore, the force transmission mechanism includes an elastic mechanism, and the force-receiving body moves to compress or stretch the elastic mechanism. The pushing or pulling force generated by the elastic mechanism acts directly or indirectly on the support structure, thereby pushing or pulling the support structure to rotate.

[0046] Furthermore, the force transmission mechanism includes a spring, and the force-receiving body directly or indirectly compresses the spring during its movement. The pushing force generated by the spring directly or indirectly acts on the support structure, thereby driving the support structure to rotate.

[0047] and / or

[0048] The tension spring is directly or indirectly stretched during the movement of the force-bearing body. The tension force generated by the spring acts directly or indirectly on the supporting structure, thereby pulling the supporting structure to rotate.

[0049] Furthermore, each support structure shall be provided with at least a first type of force spring and / or a second type of force spring.

[0050] First method: Using only one spring:

[0051] During the rotation of the support structure in the mobile overhead contact system from the working position to the non-working position:

[0052] During the movement of the force-bearing body, the first type of force spring is directly or indirectly compressed, and the pushing force generated by the first type of force spring acts directly or indirectly on the supporting structure, thereby driving the supporting structure to rotate; or

[0053] During the movement of the force-bearing body, the second type of force spring is stretched directly or indirectly. The pulling force generated by the second type of force spring acts directly or indirectly on the supporting structure, thereby pulling the supporting structure to rotate.

[0054] The second method: Simultaneously setting both the first and second force springs:

[0055] During the rotation of the support structure in the mobile overhead contact system from the working position to the non-working position:

[0056] During the movement of the force-bearing body, the first type of force spring is directly or indirectly compressed, and the pushing force generated by the first type of force spring acts directly or indirectly on the support structure, thereby pushing the support structure to rotate to the non-working position.

[0057] During the rotation of the support structure in the mobile overhead contact system from the non-working position to the working position:

[0058] During the movement of the force-bearing body, the second type of force spring is directly or indirectly compressed. The driving force generated by the second type of force spring acts directly or indirectly on the support structure, thereby pushing the support structure to rotate towards the working position.

[0059] Furthermore, it also includes a fixed stop, which is disposed on the force-bearing body and is used to compress or stretch the spring during the process of the force-bearing body being driven to move.

[0060] The thrust or tension generated by the spring acts directly or indirectly on the support structure, thereby pushing or pulling the support structure to rotate to the working position, or to rotate to the non-working position, or to switch between the working position and the non-working position.

[0061] Furthermore, it also includes a rotating mechanism, which is disposed on the support structure; the force transmission mechanism is disposed directly or indirectly on the rotating mechanism.

[0062] Furthermore, it also includes a first force mechanism and / or a second force structure:

[0063] First scenario: Only one force-acting mechanism is used.

[0064] The first force mechanism is located at either end of the mobile contact network, and is used to control the switching of the mobile contact network between a working position and a non-working position; or

[0065] The second scenario: A force-applying mechanism is installed at each end of the mobile overhead contact line.

[0066] The force provided by the first force mechanism acts directly or indirectly on one end of the force-bearing body, and the force provided by the second force mechanism acts directly or indirectly on the other end of the force-bearing body.

[0067] Furthermore, the first force mechanism and / or the second force mechanism act to drive the force-bearing body to move, and during the movement of the force-bearing body, it directly or indirectly drives one or more support structures to rotate to the working position; or to the non-working position; or switches between the working position and the non-working position.

[0068] Furthermore, the first force mechanism and the second force mechanism respectively employ one or more combinations of a weight structure, a dragging mechanism, a hydraulic drive device, and an electric drive device to provide the force.

[0069] Furthermore, it also includes a tension sensor, which is disposed at one or both ends of the force-bearing body. The tension sensor is used to detect the tension of the force-bearing body in order to control the first force mechanism and / or the second force mechanism to increase or decrease the tension of the force-bearing body.

[0070] Furthermore, the load-bearing body includes a load-bearing cable and / or a contact wire;

[0071] In addition, when the load-bearing body includes a catenary and a contact wire, a rotating wheel that distributes the force equally is also provided. The force provided by the first force mechanism and / or the second force mechanism acts on the rotating wheel, so that the force is evenly distributed at either end of the catenary and the contact wire, or at both ends of the two.

[0072] In another aspect, the present invention provides a method for operating a compensated swing arm to move the contact wire, the operation steps of which are as follows:

[0073] The mobile overhead contact system is equipped with several support structures;

[0074] The object subjected to force can be driven to move;

[0075] The force-bearing body will be directly or indirectly subjected to the driving force on one or more supporting structures;

[0076] During the process of the force-bearing body being driven to move, there exists any one of the following relationships, a combination of two relationships, or all three relationships between the force-bearing body and each corresponding supporting structure:

[0077] First: During the movement of the force-bearing body, it directly or indirectly drives the rotation of several supporting structures, and the force-bearing body and the corresponding supporting structures move relative to each other;

[0078] Second: During the movement of the force-bearing body, the supporting structure is directly or indirectly driven to rotate; there is no relative movement between the force-bearing body and the corresponding supporting structure.

[0079] Third: During the switching between the working position and the non-working position of the mobile contact network, when some of the supporting structures stop rotating, the force-bearing body can still move further relative to the stopped supporting structures.

[0080] Furthermore, in the mobile overhead contact system, the force-bearing body is movable relative to the supporting structure;

[0081] Alternatively, the force-bearing body can slide directly or indirectly on the support structure.

[0082] Furthermore, during the process of several support structures rotating from the working position to the non-working position or from the non-working position to the working position, the maximum horizontal movement distance of the force-bearing body in at least one support structure along the horizontal direction can be greater than the maximum horizontal rotation distance of the corresponding support structure; or, the maximum horizontal movement distance of the force-bearing body along the horizontal direction can be greater than the length of the rotation radius of the support structure.

[0083] Furthermore, the force-bearing body is driven to move, directly or indirectly causing one or more supporting structures to rotate from the working position to the non-working position; or from the non-working position to the working position; or to switch between the working position and the non-working position.

[0084] Furthermore, the force transmission mechanism directly or indirectly applies the thrust or tension generated during the movement of the force-bearing body to the support structure, thereby pushing or pulling the support structure to rotate.

[0085] Furthermore, the force transmission mechanism includes a spring, and the force-receiving body moves to compress the spring, the pushing force generated by the spring acting directly or indirectly on the supporting structure, thereby driving the supporting structure to rotate; or

[0086] The force-bearing body moves and stretches the spring, and the tensile force generated by the spring acts directly or indirectly on the supporting structure, thereby pulling the supporting structure to rotate.

[0087] Furthermore, the thrust or tension generated by the spring acts directly or indirectly on the supporting structure, thereby pushing or pulling the supporting structure to rotate; or

[0088] The thrust or tension generated by the spring acts directly or indirectly on the supporting structure, thereby pushing or pulling the supporting structure to rotate further.

[0089] Furthermore, the number of supporting structures in the mobile contact network is defined as M, and the number of supporting structures rotated to the non-working position is defined as N;

[0090] After N support structures rotate to the non-working position, the force-bearing body can be further pulled to drive the remaining (MN) support mechanisms to rotate further to the non-working position.

[0091] Furthermore, when the first supporting structure in the mobile contact network stops rotating, the force-bearing body can be driven to move further on the stopped supporting structure.

[0092] Furthermore, during the process of the mobile contact network rotating from the non-working position to the working position, no force transmission mechanism is used to transmit force. The force-bearing body directly or indirectly drives the support structure to rotate above the railway.

[0093] Furthermore, the interaction of the first force mechanism and / or the second force mechanism is used to drive the force-bearing body to move. During the movement of the force-bearing body, it directly or indirectly drives one or more support structures to rotate to the working position; or to the non-working position; or switches between the working position and the non-working position.

[0094] Furthermore, during the entire rotation process of the mobile overhead contact line, the situation of rotating from the working position to the non-working position is as follows:

[0095] Scenario 1: Initially, the supporting structures are all above the railway, and the load-bearing body is driven to move. In this state, the load-bearing body compresses or stretches the corresponding spring; the thrust or pull force generated by the spring overcomes the static state of the supporting structure itself on the column, pushing or pulling the supporting structure to rotate.

[0096] Scenario 2: The force generated during the movement of the body is transmitted through a spring. When the first supporting structure stops rotating, the body moves further to compress or stretch the spring. In this state, there is a relative movement relationship between the body and the stopped supporting structure.

[0097] Scenario 3: In this case, the force-bearing body moves further, getting closer to the already stopped support structure. The force-bearing body further compresses or stretches the spring to push or pull the support structure to rotate towards the non-working position. In this case, there is a relative movement relationship between the force-bearing body and the support structure, and the support structure is still rotating. That is, there is a relative movement relationship between the force-bearing body and the support structure, and the moving force-bearing body pushes or pulls the support structure to rotate further. When the support structure rotates to the non-working position in this state, the support structure stops rotating, and the force-bearing body can be further driven to move. In this state, the relationship between the force-bearing body and the corresponding support structure will transition to the situation described in Scenario 2 above.

[0098] Scenario 4: In a mobile overhead contact system, the remaining support structures that are far from the stationary support structure are in a state where the force-bearing body compresses or stretches the spring, causing the corresponding support structure to rotate. When the force-bearing body moves further, the relationship between the force-bearing body and the corresponding support structure will transition to the situation described in Scenario 3 above.

[0099] The present invention has the following beneficial effects:

[0100] In existing mobile contact networks, the catenary and / or contact wire are fixed to the supporting structure. When one supporting structure stops rotating, the catenary and / or contact wire cannot be pulled further. The existing drawback is that when one supporting structure stops rotating, several other supporting structures in the mobile contact network may not have rotated to the working position.

[0101] In this invention, the force-bearing body can be driven to move, and the driving force received by the force-bearing body directly or indirectly acts on one or more supporting structures. During the rotation of several supporting structures in the entire contact network, the force-bearing body is arranged in a way that allows relative movement with the supporting structures, or the force-bearing body can slide directly or indirectly on the supporting structures. The force-bearing body is arranged along its length, and the force-bearing body directly or indirectly acts on the free ends of several rotating supporting structures to cause the supporting structures to rotate (including rotating towards the working position or towards the non-working position). After some supporting structures rotate to the non-working position, they stop rotating; the force-bearing body can be further pulled and moved on the stopped supporting structures, and the pulled and moved force-bearing body directly or indirectly drives the remaining (MN) supporting mechanisms to rotate to the non-working position. This can effectively solve the problem of the supporting structures not rotating to the correct position.

[0102] This invention directly changes the traditional solution, allowing the load-bearing body (feeding cable and / or contact wire) to move relative to the supporting structure; the maximum horizontal movement distance of the feeding cable and / or contact wire in the horizontal direction can be greater than the horizontal rotation distance of the corresponding supporting structure, eliminating the effects of construction errors and thermal expansion and contraction.

[0103] A force transmission mechanism is used to apply the thrust or tension generated during the movement of the catenary and / or contact wire to the support structure, thereby pulling or pushing the support structure to rotate. This structural change is necessary because the support structure is generally rotatably mounted on the column and can rotate under any pushing force. Therefore, by using a force transmission mechanism to push or pull the support structure to rotate, even after the outermost support structure has rotated into place, as long as the catenary and / or contact wire can be pulled further, the force transmission mechanism can push or pull the support structure to swing further. This solves the problem of all support structures in existing mobile contact networks not being able to be positioned correctly.

[0104] 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.

[0105] 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. Attached Figure Description

[0106] 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.

[0107] Figure 1 This is a schematic diagram of the existing mobile contact network rotation under the influence of construction errors and thermal expansion and contraction;

[0108] Figure 2 This is a top view schematic diagram of the structure of the mobile contact network during its movement according to the present invention;

[0109] Figure 3 Is Figure 2 A top-view diagram of a structure where the load-bearing body moves further based on the existing structure;

[0110] Figure 4 This is a schematic diagram illustrating the relationship between the stressed body and the supporting structure during the movement of the body.

[0111] Figure 5This is a schematic diagram of the force-bearing body compressing the spring and driving the support structure to rotate according to the present invention;

[0112] Figure 6 yes Figure 5 Schematic diagram of the motion process;

[0113] Figure 7 This is a schematic diagram of the force-bearing body tension spring driving the support structure to rotate according to the present invention;

[0114] Figure 8 yes Figure 7 Schematic diagram of the rotational motion of the supporting structure;

[0115] Figure 9 This is a schematic diagram of the two types of force springs driving the support structure to rotate according to the present invention;

[0116] Figure 10 This is a schematic diagram of the mobile contact network of the present invention;

[0117] Figure 11 This is a schematic diagram of a practical application of the compensated swing arm moving contact network;

[0118] Figure 12 yes Figure 11 A partial schematic diagram of the rotating wheel.

[0119] In the diagram: 1. Load-bearing body; 101. Catenary wire; 102. Contact wire; 2. Rotating wheel; 3. Support structure; 4. Column; 51. First type of force spring; 52. Second type of force spring; 6. Kit; 7. Fixed stop; 8. Rotating mechanism; 9. First force mechanism; 10. Second force mechanism; 11. Gantry; 12. Weight frame; 13. First weight; 14. Second weight; 15. Insulator; 16. Rotating wheel. Detailed Implementation

[0120] 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.

[0121] like Figure 1As shown in the diagram, a traditional mobile catenary is designed so that the cantilever arm rotates to the right, moving the catenary cable to one side of the rail (non-working position). Due to construction errors and the effects of thermal expansion and contraction on the catenary cable, when the rightmost cantilever arm a moves to one side of the rail (the cantilever arm is nearly parallel to the rail, making room above the railway), the remaining cantilever arms (cantilever arms a to d) do not completely rotate to one side of the rail (this can be understood as at least one cantilever arm in the entire catenary not fully swinging to the railway once; for long-distance catenary systems, there are cases where the swing stops above the railway side because the rightmost cantilever arm has already swung into position). The further the rightmost arm is from the rotating contact network, the smaller its offset. This means that when the rightmost arm stops rotating, the other arms have not yet rotated to their positions. This is especially problematic for long-distance heavy-haul trains with mobile contact networks of about 1600 meters. When the rightmost arm stops rotating after reaching its position, the other arms, which are far from the rightmost arm, are still not fully rotated, or even positioned above and to the side of the rail. This can affect the loading and unloading of large freight yards, containers, and other goods. In addition, due to the incomplete rotation, there may be poor contact or inability to make contact with the pantograph to obtain power, affecting the entry or exit of freight trains.

[0122] like Figure 2 , Figure 3 and Figure 4 As shown, the first aspect of this embodiment provides a compensated swing-arm moving contact network, applied in the field of moving contact networks, which includes several support structures and a load-bearing body. It should be noted that in this embodiment, the load-bearing body includes a catenary wire and / or a contact wire. In actual working conditions, catenary wires and contact wires are usually used, but there are also cases where only catenary wires or only contact wires are used. A power supply is used to provide electrical energy to the freight train. The power supply can be rigid or flexible, with flexible power supply typically using a contact wire. In this embodiment, the load-bearing body and the power supply can be a single entity, collectively referred to as the load-bearing body in this invention.

[0123] In this embodiment, the force-bearing body can be driven to move, and the force-bearing body will directly or indirectly act on one or more supporting structures with the driving force it receives.

[0124] State 1: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; the force-bearing body can have a relative movement relationship with some or all of the supporting structures;

[0125] State 2: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; the force-bearing body can have no relative movement relationship with some or all of the supporting structures;

[0126] State 3: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; during the process of rotating from the working position to the non-working position, in the first movement stage, the force-bearing body can have no relative movement relationship with some or all of the supporting structures; in the second movement stage, the force-bearing body can have a relative movement relationship with some or all of the supporting structures.

[0127] State 4: During the process of the force-bearing body being driven to move, the force-bearing body directly or indirectly applies the driving force to one or more supporting structures; during the rotation from the non-working position to the working position, the force-bearing body can have a relative movement relationship with some or all of the supporting structures in the first movement stage; the force-bearing body can not have a relative movement relationship with some or all of the supporting structures in the second movement stage.

[0128] When the mobile overhead contact line switches between working and non-working positions, the relationship between the force-bearing body and the supporting structure includes any one of the above states one to four, or a combination of two or more states.

[0129] In this embodiment, the force-bearing body can be moved by pulling and / or dragging. During the movement, the force-bearing body and its corresponding supporting structures have at least the following relationship:

[0130] First: The force-bearing body moves relative to the corresponding supporting structure, and the force-bearing body directly or indirectly drives the supporting structure to rotate during the movement.

[0131] Second: There is no relative movement between the force-bearing body and the corresponding supporting structure; the force-bearing body moves during the process of driving the supporting structure to rotate.

[0132] Third: When the support structure stops rotating, the force-bearing body can still move further relative to the stopped support structure;

[0133] During the movement of the force-bearing body, the relationship between the force-bearing body and each corresponding support structure may be any of the above-mentioned relationships, a combination of two relationships, or all three relationships.

[0134] In a preferred embodiment, during the driving movement, the force-bearing body directly or indirectly drives at least one support structure to rotate from the working position to the non-working position; or

[0135] During the movement of the force-bearing body, at least one supporting structure is directly or indirectly driven to rotate from the non-working position to the working position; or

[0136] During the movement of the force-bearing body, at least one support structure is directly or indirectly driven to switch between the working position and the non-working position.

[0137] In a preferred embodiment, during the process of the force-bearing body being driven to move, at least one support structure is directly or indirectly rotated from the working position to the non-working position. During this process, each support structure can rotate from above the railway at a large angle to a small angle to the side of the railway, thus achieving a non-working position for each support structure.

[0138] During the process of the force-bearing body being driven to move, it directly or indirectly drives at least one support structure to rotate from the non-working position to the working position; each support structure can rotate from the side of the railway from a small angle to a large angle to above the railway, so that each support structure is in the working position state.

[0139] In a preferred embodiment, the number of support structures in the mobile contact network is defined as M, and the number of support structures rotated to the non-working position is defined as N; wherein M is greater than or equal to 2, N is greater than or equal to 1, and M is greater than or equal to N;

[0140] After N support structures rotate to the non-working position, the force-bearing body can move further, thereby driving the remaining (MN) support mechanisms to rotate further to the non-working position.

[0141] In a preferred embodiment, during the rotation of several support structures in the mobile contact network from the working position to the non-working position, N support structures can first rotate to the non-working position, and then the remaining (MN) support structures can rotate to the non-working position respectively, until the number N of support structures that have rotated to the non-working position is equal to the number M of support structures in the mobile contact network.

[0142] It should be further explained that in this mobile contact network, some support structures stop rotating after rotating to the non-working position; the force-bearing body can be further moved on the stopped support structure, and the moved force-bearing body directly or indirectly drives the remaining (MN) support mechanisms to rotate to the non-working position.

[0143] It should be further noted that the force-bearing body in this mobile contact network can move relative to the supporting structure; or, the force-bearing body can slide directly or indirectly on the supporting structure.

[0144] In at least one support structure, during the process of rotating from the working position to the non-working position or from the non-working position to the working position, the maximum horizontal movement distance of the force-bearing body in the horizontal direction can be greater than the maximum horizontal rotation distance of the corresponding support structure.

[0145] When the first supporting structure in the mobile contact network stops rotating, the force-bearing body can be driven to move further on that stopped supporting structure. For example... Figure 2 and Figure 3 As shown, when the support structure a rotates to the non-working position, it stops rotating, and the force-bearing body can still be pulled or moved further.

[0146] The following additional explanation is needed: In this embodiment, the force-bearing body includes a catenary and / or a contact wire. Several supporting structures rotate from a working position to a non-working position or from a non-working position to a working position; during the movement of the catenary and / or the contact wire, they pull or push the several supporting structures to rotate to the working or non-working position.

[0147] The working position is as follows: the catenary and / or contact wire is located above the rail; as long as the contact wire is located above the railway centerline, the pantograph of the freight train can draw power.

[0148] In the non-working position, the catenary and / or contact wire is located on one side of the rail. There is a minimum requirement for this "one side": the catenary and / or contact wire must be able to completely move above the rail. After moving above the rail, the supporting structure can be parallel to the extension direction of the railway or at a certain angle. The minimum requirement for this angle is that the supporting structure must move above the rail to make room for loading and unloading operations on freight trains by gantry cranes, forklifts, and other loading and unloading equipment.

[0149] like Figure 2 The diagram shows a top view of a moving overhead contact line. Solid lines represent the working positions of the contact elements above the railway, while dashed lines represent the non-working positions of the contact elements after they move in the direction of the arrows, causing the supporting structures (supporting structures a, b... c, and d) to rotate towards the side of the railway. Figure 2 As can be seen, the movement of the load-bearing body at point A causes the supporting structure c to rotate. (This requires further reference.) Figure 1 and Figure 3 .

[0150] Figure 1 The demonstration shows the trajectory of a traditional catenary cable rotating from A to B. Since the catenary cable is fixed, the trajectory of the catenary cable's movement is the trajectory of the free end of the cantilever arm C rotating.

[0151] Please combine Figure 2 , Figure 3 and Figure 4 As shown, and in comparison Figure 1 Review. Figure 2 Move from point A to point B. Figure 3The diagram shows that after reaching point B, the object under force can move further from point B to point B'.

[0152] In this embodiment, at least one support structure in the overhead contact system (generally the outermost support structure, see reference) Figure 2 and Figure 3 In this embodiment, support structure a is the first to stop rotating. (It should be noted that when the support structure rotates to the working position on the side of the railway, a blocking element can be installed on the three-dimensional surface to prevent further rotation.) As in this embodiment, when support structure a stops rotating, the catenary and / or contact wire can be further pulled or drawn to move. Since support structure a is stopped rotating at this moment, the load-bearing body can move relative to support structure a. The horizontal distance the catenary and / or contact wire moves in the horizontal direction is greater than or equal to the maximum horizontal distance of the support structure's rotation. Figure 3 As shown, after the load-bearing body (feeding cable and / or contact wire) moves from point A to point B, the horizontal distance L1 of the feeding cable and / or contact wire movement is greater than L2. Figure 3 As can be seen, at this time, through the external force mechanism ( Figure 2 Not shown in the image, see [link / reference]. Figure 3 (As shown) The catenary and / or contact wire are moved along several supporting structures, causing the catenary and / or contact wire to move from point B to point B', with the total horizontal distance traveled by the catenary and / or contact wire being L1. Where R is the rotation radius of the supporting structure, and L1 = L2 + R.

[0153] like Figure 4 As shown, the catenary and / or contact wire moves from point A to point B'. Since the catenary and / or contact wire are installed on the support structure in a way that allows them to be pulled (the catenary and / or contact wire are installed on the support structure in a sliding manner), during the pulling and moving process, the catenary and / or contact wire has a sliding amount relative to the support structure, and its horizontal distance traveled is L1. At this time, the corresponding horizontal distance of rotation of the support structure is L2 (here, L2 can be understood as the rotation radius of the support structure, or it can be understood as the length of the support structure). That is to say, as long as the catenary and / or contact wire has a relative sliding amount relative to the support structure during the movement, at any position during the rotation process, L1 is always greater than L2.

[0154] To clarify: the purpose is to rotate the catenary, contact wire, and support structure to the non-working position. This can be achieved by pulling the catenary and / or contact wire, which in turn drives the support structure to rotate. Alternatively, a rotary motor can be used to drive the support structure to rotate, which in turn moves the catenary and / or contact wire to the non-working position.

[0155] The most significant innovation of this overhead contact system is that the maximum horizontal movement distance of the load-bearing body (the catenary and / or contact wire) in the horizontal direction is greater than or equal to the radius of rotation of the supporting structure (which is consistent with the meaning of "the maximum horizontal movement distance of the load-bearing body in the horizontal direction is greater than the maximum horizontal distance of rotation of the corresponding supporting structure" mentioned above). In other words, it applies to supporting structures where the catenary and / or contact wire are not fixed in place. Figure 1 The catenary and contact wire shown are fixed to the cantilever arm. Any rotation of the cantilever arm or pulling of the catenary will cause the catenary to move a distance in the horizontal direction less than or equal to the rotation radius of the cantilever arm. Especially in long-distance mobile contact networks, due to construction errors and the effects of thermal expansion and contraction, such as in summer, when cantilever arm a rotates to its position and stops, cantilever arms c and d, which are farther away, cannot rotate to their positions.

[0156] In this patent, the entire catenary or contact wire is slidably set on several supporting structures. This not only overcomes the influence of construction errors, but also effectively reduces or ignores the influence of thermal expansion and contraction on the rotation of the supporting structures, regardless of whether it is winter or summer.

[0157] Therefore, based on the above technical description, those skilled in the art should understand that when the catenary and / or contact wire can slide, the maximum horizontal movement distance of the catenary and / or contact wire in the horizontal direction can be greater than the horizontal rotation distance of the corresponding support structure. This effect can be achieved when the force-bearing body directly or indirectly drives the rotation of one or more support structures by means of tumbling movement.

[0158] Please see Figure 5 and Figure 6 In a preferred embodiment, this embodiment also includes a force transmission mechanism, which is used to directly or indirectly apply the thrust or tension generated during the movement of the force-bearing body to the support structure, thereby pushing or pulling the support structure to rotate.

[0159] Preferably, the force transmission mechanism includes an elastic mechanism, and the force-receiving body moves to compress or stretch the elastic mechanism. The pushing or pulling force generated by the elastic mechanism acts directly or indirectly on the supporting structure, thereby pushing or pulling the supporting structure to rotate.

[0160] Preferably, the force transmission mechanism includes a spring, such as... Figure 5 As shown, during the movement of the force-bearing body 1, the spring is compressed directly or indirectly, and the pushing force generated by the spring acts directly or indirectly on the support structure 3, thereby driving the support structure 3 to rotate. Figure 6The diagram shows that during the movement of the force-bearing body 1, one end of the spring 51 is compressed by the fixed stop 7, and the pushing force generated by the other end of the spring 51 indirectly (in this embodiment, the kit 6 is used, and one end of the spring transmits the pushing force to the kit, which is fixedly installed on the support structure) acts on the support structure 3, thereby pushing the support structure 3 to rotate.

[0161] or

[0162] exist Figure 5 On the basis of, such as Figure 7 As shown, the left end of the spring is fixed to the end face of the kit 6. The force-bearing body 1 is pulled to the right. In this embodiment, during the movement of the force-bearing body 1, one end of the spring is stretched by the fixed stop 7. The other end of the spring indirectly transfers the tension to the support structure 3, thereby pulling the support structure 3 to rotate. The movement of the force-bearing body 1 stretches the spring, and the tension force formed by the spring acts directly or indirectly on the support structure 3, thereby pulling the support structure 3 to rotate.

[0163] like Figure 8 The diagram shows that during the movement of the load-bearing body 1, one end of the spring 52 is stretched by the fixed stop 7, and the other end of the spring 52 transmits the pulling force to the kit 6, thereby applying the pulling force generated by the spring 52 to the support structure 3 and pulling the support structure 3 to rotate.

[0164] In this embodiment, each support structure 3 is provided with at least one type of force spring 51 (such as...). Figure 5 (as shown) and / or a second type of force spring 52 (as shown) Figure 9 (as shown)

[0165] First method: Using only one spring:

[0166] During the rotation of support structure 3 from the working position to the non-working position in the mobile overhead contact system:

[0167] like Figure 5 As shown, during the movement of the force-bearing body 1, the first force spring 51 is directly or indirectly compressed. The pushing force generated by the first force spring 51 acts directly or indirectly on the supporting structure 3, thereby driving the supporting structure 3 to rotate; or

[0168] like Figure 7 As shown, during the movement of the force-bearing body 1, the second force spring 52 is stretched directly or indirectly. The pulling force generated by the second force spring 52 acts directly or indirectly on the support structure 3, thereby pulling the support structure 3 to rotate.

[0169] like Figure 9 As shown, the second method: simultaneously setting both the first type of force spring 51 and the second type of force spring 52:

[0170] During the rotation of support structure 3 from the working position to the non-working position in the mobile overhead contact system:

[0171] During the movement of the force-bearing body 1, the first force spring 51 is directly or indirectly compressed. The pushing force generated by the first force spring 51 directly or indirectly acts on the support structure 3, thereby pushing the support structure 3 to rotate to the non-working position.

[0172] During the rotation of support structure 3 from the non-working position to the working position in the mobile overhead contact line:

[0173] During the movement of the force-bearing body 1, the second force spring 52 is directly or indirectly compressed. The pushing force generated by the second force spring 52 acts directly or indirectly on the support structure 3, thereby pushing the support structure 3 to rotate toward the working position.

[0174] like Figure 5 , Figure 7 and Figure 9 As shown, this embodiment also includes a fixed stop 7, which is disposed on the force-bearing body 1. The fixed stop 7 is used to squeeze or stretch the spring during the process of the force-bearing body 1 being driven to move.

[0175] The pushing or pulling force generated by the spring acts directly or indirectly on the supporting structure 3, thereby pushing or pulling the supporting structure 3 to rotate; or

[0176] The thrust or tension generated by the spring acts directly or indirectly on the support structure 3, thereby pushing or pulling the support structure 3 to rotate further.

[0177] Please refer to Figure 2 and Figure 3 As shown, it should be added that during operation, when the outermost support structure 3 (e.g., support structure a) swings into place and stops rotating (a limiting structure can be used to stop the rotation of support structure 3; the limiting structure is not a point protected by this patent, and any existing method can be used to stop it from rotating), the other support structures 3 that are far from the stopped support structure 3 (e.g., support structure 3c, support structure 3d) have not completely swung to one side of the rail. At this time, the catenary and / or contact wire are further pulled to move. Of course, this is also the core key technical idea of ​​this patent. In the past, because the catenary and contact wire were fixed to the support structure 3, when the outermost support structure 3 rotated into place, the catenary and / or contact wire could not be pulled further, which is why the other support structures 3 in the contact network could not rotate into place.

[0178] To ensure a clear understanding for those skilled in the art and to meet the requirement of full disclosure in the patent, the question arises why "the remaining support structure 3 may not rotate into position." If it were a rigid contact network, a rotating motor would be installed on each or several columns 4 to drive the cantilever arm. A rigid contact network (with rigid contact lines) can transmit force sequentially, eliminating the possibility of incomplete rotation. This patent applies to flexible mobile contact networks. In daily life, high-speed rail and subways utilize fixed flexible contact networks. The mobile flexible contact network provided in this patent is primarily used in large freight yards, railway container loading and unloading, and warehouse maintenance.

[0179] The flexible contact wire used between columns 4 is susceptible to problems due to construction errors and the thermal expansion and contraction of the contact wire and catenary, especially over long distances, and even in contact networks used for heavy-haul trains. The longer the distance, the more pronounced the issue becomes where the other supporting structures 3 in the contact network fail to rotate properly. This patent addresses this problem and proposes a solution.

[0180] Therefore, in this field, under such circumstances, since the catenary and contact wire are traditionally fixed to the support structure 3, when the outermost support structure 3 rotates into place, the catenary and / or contact wire cannot be pulled further, which is why the other support structures 3 in the contact network cannot rotate into place.

[0181] This problem has existed since the advent of flexible mobile contact wires. Currently, no publicly available technology or prior patents have disclosed or addressed this issue, or more specifically, no solution has been found. Therefore, the catenary can move relative to the supporting structure 3; or the contact wire can move relative to the supporting structure 3.

[0182] Please see Figure 2 , Figure 3 and Figure 4 As shown, during the entire rotation process of the mobile overhead contact line, the case of rotation from the working position to the non-working position is discussed:

[0183] Scenario 1: Initially, all supporting structures 3 are positioned above the railway, and the load-bearing body 1 is driven to move. In this state, the load-bearing body 1 compresses or stretches the corresponding spring. For example, when the pushing force generated by the compressed spring or the pulling force generated by the stretched spring overcomes the static state of the supporting structure 3 rotating on the column 4, it pushes or pulls the supporting structure 3 to rotate.

[0184] Scenario 2: The force generated during the movement of the force-bearing body 1 is transmitted through a spring. When the first supporting structure a stops rotating, the force-bearing body 1 moves further to compress or stretch the spring. At this time, there is a relative movement relationship between the force-bearing body 1 and the stopped supporting structure 3.

[0185] Scenario 3: In this case, the force-bearing body 1 moves further, and the support structure 3, which is closer to the already stopped support structure a, may further compress or stretch the spring to push or pull the support structure 3 to rotate towards the non-working position. In this case, there is a relative movement relationship between the force-bearing body 1 and the support structure 3, and the support structure 3 is still rotating. That is, there is a relative movement relationship between the force-bearing body 1 and the support structure 3, and the moving force-bearing body 1 pushes or pulls the support structure 3 to rotate further. It is understandable that when the support structure 3 rotates to the non-working position in this state, the support structure 3 stops rotating, and the force-bearing body 1 can be further driven to move. In this state, the relationship between the force-bearing body 1 and the corresponding support structure 3 will transition to the situation described in Scenario 2 above.

[0186] Case 4: In the mobile contact network, the other support structures 3 that are far from the already stopped support structure a are in a state where the force-bearing body 1 compresses or stretches the spring, causing the corresponding support structure 3 to rotate. When the force-bearing body 1 moves further, the relationship between the force-bearing body 1 and the corresponding support structure 3 will transition to the situation described in Case 3 above.

[0187] When all the supporting structures 3 in the mobile contact network rotate to the non-working position, the force-bearing body 1 stops moving.

[0188] This innovative approach breaks through traditional thinking and overturns the current fixed setup. It is not a technical solution that is easy for skilled technicians to come up with. If it were easy to come up with, there would have been prior technical disclosures. In this field, it is believed that it should be fixed to the support structure 3. In the existing disclosed technology, after the outermost support structure 3 is rotated into place, no technology is disclosed that the load-bearing cable or contact line can be moved further. Using this method to solve the technical shortcomings of the other support structures 3 not being able to rotate into place does not consider other possibilities, thus hindering the research and development of this technical field. The technical point provided by this patent overcomes technical bias.

[0189] like Figure 5 and Figure 6As shown, it should be further explained that in this embodiment, the force-bearing body 1 can be directly a load-bearing cable, which is threaded through the kit 6. The force transmission mechanism in this embodiment includes the kit 6, with the force-bearing body 1 located inside the kit 6. One end of the spring 5 acts on the fixed stop 7, and the other end of the spring 5 can act on the two end faces inside the kit 6, using these two end faces as the force-bearing parts. Of course, the force-bearing parts can also be any position within the kit 6 itself.

[0190] During the reciprocating movement of the force-bearing body 1, the other end of the spring 5 abuts against the left or right end face inside the kit 6, thereby driving the kit 6 to move. The kit 6 transmits the force to the support structure 3, thus enabling the movement of the force-bearing body 1 to drive the rotation of the support structure 3.

[0191] like Figure 5 , Figure 7 and Figure 9 As shown, in a preferred embodiment, this embodiment also includes a rotating mechanism 8, which is disposed on the support structure 3; the force transmission mechanism is disposed directly or indirectly on the rotating mechanism 8.

[0192] This embodiment also includes a first force mechanism 9 and / or a second force structure;

[0193] Case 1: Only one force-acting mechanism is set: (This case is not shown in the diagram)

[0194] The first force mechanism 9 is disposed at either end of the mobile contact network, and the first force mechanism 9 is used to control the mobile contact network to switch between a working position and a non-working position; or

[0195] like Figure 10 As shown, the second scenario involves installing a force-applying mechanism at each end of the mobile contact network.

[0196] The force provided by the first force mechanism 9 acts directly or indirectly on one end of the force-bearing body 1, and the force provided by the second force mechanism 10 acts directly or indirectly on the other end of the force-bearing body 1. The first force mechanism 9 and / or the second force mechanism 10 interact to drive the force-bearing body 1 to move. During the movement of the force-bearing body 1, it directly or indirectly drives one or more support structures 3 to rotate to a working position; or to a non-working position; or switches between a working position and a non-working position.

[0197] Of course, as a preferred embodiment, in this embodiment, the first force mechanism 9 and the second force mechanism 10 respectively employ one or more combinations of weight structures, dragging mechanisms, hydraulic drive devices, and electric drive devices to provide force. This embodiment provides a specific example: weight structures are provided at both ends of the force-bearing body 1, and then the balance between the weight structures is broken by the force mechanism, driving the force-bearing body 1 to move and thus causing the support structure 3 to rotate.

[0198] Of course, as a preferred embodiment, this embodiment also includes a tension sensor (not shown in the figure). The tension sensor is disposed at one or both ends of the force-bearing body 1. The tension sensor is used to detect the tension of the force-bearing body 1 to control the first force mechanism 9 and / or the second force mechanism 10 to increase or decrease the tension of the force-bearing body 1.

[0199] like Figure 11 and Figure 12 As shown, in this embodiment, the force-bearing body 1 includes a catenary cable 101 and a contact wire 102; the entire mobile contact network includes a gantry 11, a support structure 3 mounted on a column 4, the support structure being able to rotate on the column, and also includes weight frames 12 set at both ends of the gantry. The force-applying mechanism on the left weight frame 12 uses a first weight 13; the force-driving mechanism on the right weight frame 12 uses a second weight 14. A lifting motor, hydraulic push rod, or other device can be installed at the position of the left weight frame to drive the first weight 13 to rise or fall. The aforementioned descent of the first weight 13 breaks the balance, driving the catenary cable 101 and the contact wire 102 to move, thereby moving the support structure 3 to the working position or non-working position.

[0200] like Figure 12 As shown, this embodiment also includes a rotating wheel 16 that distributes the force evenly. The forces provided by the first weight 13 and the second weight 14 act on the rotating wheel 16, thus evenly distributing the force between either end of the catenary cable and the contact wire, or between both ends of them. This embodiment shows the rotating wheel 16 located at one end. This embodiment also includes an insulator 15 for electrical isolation. After one end of the catenary cable 101 and the contact wire 102 acts on the rotating wheel 16, they are connected to their respective weights via the insulator 15.

[0201] The working principle and application scenarios of this mobile contact network have been clearly described above. The second aspect of this embodiment provides an operating method based on the aforementioned mobile contact network, with the following steps:

[0202] The mobile overhead contact system is equipped with several support structures;

[0203] The object subjected to force can be driven to move;

[0204] The force-bearing body will be directly or indirectly subjected to the driving force on one or more supporting structures;

[0205] During the process of the force-bearing body being driven to move, the relationship between the force-bearing body and each corresponding supporting structure can be any one of the following, or a combination of two relationships, or all three relationships can exist:

[0206] First: During the movement of the force-bearing body, it directly or indirectly drives the rotation of several supporting structures, and the force-bearing body and the corresponding supporting structures move relative to each other;

[0207] Second: During the movement of the force-bearing body, the supporting structure is directly or indirectly driven to rotate; there is no relative movement between the force-bearing body and the corresponding supporting structure.

[0208] Third: During the switching between the working position and the non-working position of the mobile contact network, when some of the supporting structures stop rotating, the force-bearing body can still move further relative to the stopped supporting structures.

[0209] In this embodiment, in the mobile contact network, the force-bearing body is movable relative to the supporting structure;

[0210] Alternatively, the force-bearing body can slide directly or indirectly on the support structure.

[0211] Preferably, during the process of the plurality of support structures rotating from the working position to the non-working position or from the non-working position to the working position, the maximum horizontal movement distance of the force-bearing body in at least one support structure is greater than the maximum horizontal rotation distance of the corresponding support structure. Alternatively, the maximum horizontal movement distance of the force-bearing body in the horizontal direction is greater than the length of the rotation radius of the support structure.

[0212] Preferably, the force-bearing body is driven to move, directly or indirectly causing one or more support structures to rotate from the working position to the non-working position; or from the non-working position to the working position; or switching between the working position and the non-working position.

[0213] The force transmission mechanism directly or indirectly applies the thrust or tension generated during the movement of the force-bearing body to the support structure, thereby pushing or pulling the support structure to rotate.

[0214] Preferably, the force transmission mechanism includes a spring, and the force-receiving body moves to compress the spring, the pushing force generated by the spring acting directly or indirectly on the supporting structure, thereby driving the supporting structure to rotate; or

[0215] The force-bearing body moves and stretches the spring, and the tensile force generated by the spring acts directly or indirectly on the supporting structure, thereby pulling the supporting structure to rotate.

[0216] Preferably, the thrust or tension generated by the spring acts directly or indirectly on the supporting structure, thereby pushing or pulling the supporting structure to rotate; or

[0217] The thrust or tension generated by the spring acts directly or indirectly on the supporting structure, thereby pushing or pulling the supporting structure to rotate further.

[0218] Preferably, the number of support structures in the mobile contact network is defined as M, and the number of support structures rotated to the non-working position is defined as N;

[0219] After N support structures rotate to the non-working position, the force-bearing body can be further pulled to drive the remaining (MN) support mechanisms to rotate further to the non-working position.

[0220] Preferably, when the first supporting structure of the mobile contact network stops rotating, the force-bearing body can be driven to move further on the stopped supporting structure.

[0221] It should be further noted that, for a mobile contact network used in freight loading and unloading yards, the optimal situation is that, in the working position, all supporting structures are directly above the railway centerline, preferably perpendicular to the rails in space; and in the non-working position, all supporting structures are located to the side of the railway, preferably parallel to the railway's extension direction. The main problem this patent aims to solve is overcoming the issues that exist in existing mobile contact network systems during the rotation of several supporting structures from the working position (above the railway) to the non-working position (to the side of the railway). During the movement from the non-working position to the working position, as long as the supporting structures are above the railway and the pantograph can draw power, the problem is solved.

[0222] Therefore, this embodiment describes the process of the mobile contact network rotating from a non-working position to a working position. During this process, no force transmission mechanism is used to transmit force; the force-bearing body directly or indirectly drives the support structure to rotate above the railway. Of course, to achieve better operating conditions, such as... Figure 7 As shown, springs with two forces can be used in the kit. Springs are also used during the rotation from the non-working position to the working position, which can more effectively rotate several support structures to be directly above the railway centerline.

[0223] Preferably, the force-bearing body is driven to move by the interaction of the first force mechanism and / or the second force mechanism. During the movement of the force-bearing body, one or more support structures are directly or indirectly rotated to the working position; or rotated to the non-working position; or switched between the working position and the non-working position.

[0224] Preferably, during the entire rotation of the mobile overhead contact line, the case of rotation from the working position to the non-working position is discussed:

[0225] Scenario 1: Initially, the supporting structures are all above the railway, and the load-bearing bodies are driven to move. In this state, the load-bearing bodies compress or stretch the corresponding springs; the thrust or pull force generated by the springs overcomes the state of the supporting structures themselves when the columns are rotating and stationary, pushing or pulling the supporting structures to rotate.

[0226] Scenario 2: The force generated during the movement of the body is transmitted through a spring. When the first supporting structure stops rotating, the body moves further to compress or stretch the spring. At this time, there is a relative movement relationship between the body and the stopped supporting structure.

[0227] Scenario 3: In this case, the force-bearing body moves further, and the support structure, which is closer to the already stopped support structure, is further compressed or stretched by the force-bearing body to push or pull the support structure to rotate towards the non-working position. In this situation, there is a relative movement relationship between the force-bearing body and the support structure, and the support structure is still rotating. That is, there is a relative movement relationship between the force-bearing body and the support structure, and the moving force-bearing body pushes or pulls the support structure to rotate further. When the support structure rotates to the non-working position in this state, the support structure stops rotating, and the force-bearing body can be further driven to move. In this state, the relationship between the force-bearing body and the corresponding support structure will transition to the situation described in Scenario 2 above.

[0228] Scenario 4: In a mobile overhead contact system, the remaining support structures that are far from the already stopped support structure a are in a state where the force-bearing body compresses or stretches the spring, causing the support structure to rotate. When the force-bearing body moves further, the relationship between the force-bearing body and the corresponding support structure will transition to the situation described in Scenario 3 above.

[0229] This invention directly changes the traditional approach by utilizing the catenary and / or contact wire itself as the load-bearing body, allowing it to move freely (traditionally, the catenary is fixed to the cantilever structure). The catenary provided in this invention can slide back and forth on the supporting structure, exhibiting relative movement. The maximum horizontal movement distance of the catenary in the horizontal direction is greater than the horizontal rotation distance (rotation radius) of the corresponding supporting structure. It should be noted that this maximum horizontal movement distance only exceeds the horizontal rotation distance of the corresponding cantilever structure when sliding. If the catenary is fixed to the cantilever structure, its horizontal movement distance is equal to or less than the horizontal rotation distance of the corresponding cantilever structure. It is precisely because of this relative sliding relationship that construction errors and the effects of thermal expansion and contraction can be eliminated. It is precisely because of this relative sliding relationship that the structure is innovated. Force is transmitted through the load-bearing body. When the load-bearing cable is pulled (the force is initiated by an external weight or a dragging mechanism), the force generated during the cable's movement is transmitted to the supporting structure, causing it to rotate to its working or non-working position. This method breaks with traditional thinking. Traditionally, it is believed that the load-bearing cable needs to be fixed to the supporting structure, and the cable's movement is driven by the rotation of the support, or the cable is directly pulled to rotate the supporting structure. Existing related technologies (related papers and published patents) all follow this approach. This invention breaks with traditional thinking by ensuring that the load-bearing cable and / or the contact line have a relative movement relationship with their corresponding supporting structures during the cable's movement. This invention effectively solves the problems of construction errors, thermal expansion and contraction of the catenary, and the inability of the support structure in existing mobile contact networks to be pulled. In existing structures, if the outermost cantilever arm stops rotating, the catenary cannot be further pulled or moved, and therefore the remaining support structures cannot be pulled, resulting in some support structures not being able to rotate properly. It should be noted that because the catenary is fixed to the cantilever arm in traditional systems, thermal expansion and contraction can cause the contact network to not be positioned correctly when it reaches the side of the railway. This problem has been explained above and will not be repeated here. Another major highlight of this invention is that during the lateral swaying of the entire contact network, the moving component (catenary) is slidably configured, allowing it to move back and forth on the cantilever arm structure. This further movement drives the support structure to rotate, compensating for the portion of the travel that cannot be rotated in traditional mobile contact networks.A flexible mechanism (such as a spring, or other elastic force-transmitting components) can be used to further push or pull the cantilever structure to swing further, thus achieving a further rotation. This solution perfectly addresses the problem of incomplete rotation in existing systems, especially for long-distance mobile contact networks, such as 1700 meters. It can perfectly swing the catenary and / or contact wire to one side of the railway, ensuring a precise swing. Existing mobile contact lines, such as those using rigid or flexible contact networks, cannot reach 1700 meters in length, or require splicing multiple sections of mobile contact network, resulting in complex components and high costs. While some might suggest installing a rotating motor at the base of each cantilever arm to indirectly address incomplete swing, this approach is rarely used in existing patents and practical applications. A single motor failure would disrupt the entire mobile contact network, leading to a high failure rate, high cost, and complex system control. Therefore, the present invention aims to achieve a low failure rate. The structure of the present invention has the lowest failure rate from the current technical point of view, and it is stable and reliable in operation. The key is that it is easy to operate and has a good swing effect.

[0230] 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 compensating swing arm moving contact line, applied to the field of moving contact line, characterized in that: It comprises several support structures and force-bearing bodies; Wherein The force-bearing bodies can be driven to move, and the driving force directly or indirectly acting on the force-bearing bodies acts on one or more support structures; State one: in the process of driving the force-bearing bodies to move, the driving force directly or indirectly acting on the force-bearing bodies acts on one or more support structures; in the process of rotating the support structures in the moving contact net from the working position to the non-working position, the force-bearing bodies can have no relative movement between the force-bearing bodies and part or all of the support structures in the first moving stage; the force-bearing bodies can have relative movement between the force-bearing bodies and part or all of the support structures in the second moving stage; State two: in the process of driving the force-bearing bodies to move, the driving force directly or indirectly acting on the force-bearing bodies acts on one or more support structures; in the process of rotating the support structures in the moving contact net from the non-working position to the working position, the force-bearing bodies can have relative movement between the force-bearing bodies and part or all of the support structures in the first moving stage; the force-bearing bodies can have no relative movement between the force-bearing bodies and part or all of the support structures in the second moving stage; In the process of switching the moving contact net between the working position and the non-working position, the relationship between the force-bearing bodies and the support structures includes any one of the above-mentioned state one to two, or a combination of the two states; It also comprises a force transmission mechanism for directly or indirectly acting on the support structures the thrust or pull force directly or indirectly formed in the process of moving the force-bearing bodies, thereby pushing or pulling the support structures to rotate; The force transmission mechanism comprises an elastic mechanism, the force-bearing bodies move to compress or stretch the elastic mechanism, and the pushing force or pulling force formed by the elastic mechanism directly or indirectly acts on the support structures, thereby pushing or pulling the support structures to rotate; The force transmission mechanism comprises a spring, the force-bearing bodies directly or indirectly compress the spring in the process of moving, and the pushing force formed by the spring directly or indirectly acts on the support structures, thereby pushing the support structures to rotate; And / or The force-bearing bodies directly or indirectly stretch the spring in the process of moving, and the pulling force formed by the spring directly or indirectly acts on the support structures, thereby pulling the support structures to rotate.

2. The compensating swing-arm moveable catenary of claim 1, wherein: The force-bearing bodies can be pulled and / or pulled out to realize movement, and in the process of moving, the force-bearing bodies and each corresponding support structure at least have the following relationship: First: in the process of moving the force-bearing bodies, the force-bearing bodies directly or indirectly drive several support structures to rotate, and the force-bearing bodies and the corresponding support structures can have relative movement; Second: in the process of moving the force-bearing bodies, the force-bearing bodies directly or indirectly drive several support structures to rotate, and the force-bearing bodies and the corresponding support structures have no relative movement; Third: in the process of switching the moving contact net between the working position and the non-working position, when part of the support structures stop rotating, the force-bearing bodies can also move further relative to the stopped support structures; In the process of moving, the force-bearing bodies and each corresponding support structure have any one of the above-mentioned relationships, or a combination of two relationships, or all three relationships.

3. A compensating swing-arm moveable catenary according to claim 2, characterised in that: The force body moves directly or indirectly to drive at least one support structure from the working position to the non-working position; or The force body moves directly or indirectly to drive at least one support structure from the non-working position to the working position. Or The force body moves directly or indirectly to drive at least one support structure to switch between the working position and the non-working position.

4. A compensating swing-arm moveable catenary according to claim 3, characterised in that: During the process of driving the force body to move directly or indirectly to drive at least one support structure from the working position to the non-working position, each support structure can be rotated from a large angle above the railway to a small angle to the side of the railway, so that each support structure is in the non-working position state, or During the process of driving the force body to move directly or indirectly to drive at least one support structure from the non-working position to the working position, each support structure can be rotated from a small angle to a large angle to the side of the railway, so that each support structure is in the working position state.

5. A compensating swing-arm moveable catenary according to claim 4, characterised in that: Define the number of support structures in the moving contact net as M, and define the number of support structures rotating to the non-working position as N; wherein the number of M is greater than or equal to 2, the number of N is greater than or equal to 1, and M is greater than or equal to N; After N support structures rotate to the non-working position, the force body can be further moved to drive the remaining (M-N) support structures to further rotate to the non-working position.

6. A compensating swing-arm moveable catenary according to claim 5, characterised in that: During the process of rotating the support structures in the moving contact net from the working position to the non-working position, N support structures can be rotated to the non-working position first, and then the remaining (M-N) support structures can be rotated to the non-working position one by one, until the number of support structures rotating to the non-working position N is equal to the number of support structures in the moving contact net M.

7. A compensating swing-arm moveable catenary according to claim 6, characterised in that: Part of the support structures rotate to the non-working position and stop rotating; The force body can be further moved on the stopped rotating support structure, and the moved force body directly or indirectly drives the remaining (M-N) support structures to rotate to the non-working position.

8. Compensated swing-arm moving catenary according to any one of claims 1 to 7, characterized in that: The force body can move relative to the support structure; or The force body can directly or indirectly slide on the support structure.

9. Compensated swing-arm moving catenary according to any one of claims 1 to 7, characterized in that: In at least one support structure, during the process of rotating from the working position to the non-working position or from the non-working position to the working position, the maximum horizontal movement distance of the force body in the horizontal direction can be greater than the maximum horizontal distance of the corresponding support structure rotating; or The maximum horizontal movement distance of the force body in the horizontal direction can be greater than the length of the support structure rotating radius.

10. The compensating swing-arm moveable catenary of claim 8, wherein: When the first support structure in the moving contact net stops rotating, the force body can be driven to further move on the stopped rotating support structure.

11. The compensating swing-arm moveable catenary of claim 1, wherein: At least a first force spring and / or a second force spring is provided in each support structure, First mode: only one spring is provided: During the process of rotating the support structure in the moving contact net from the working position to the non-working position: During the process of moving the force body, the first force spring is compressed directly or indirectly, and the pushing force formed by the first force spring acts directly or indirectly on the support structure, thereby pushing the support structure to rotate; or The force body is directly or indirectly stretched by the second force spring during the movement of the force body, and the pulling force generated by the second force spring directly or indirectly acts on the support structure, thereby pulling the support structure to rotate; The second mode: the first force spring and the second force spring are arranged at the same time: During the rotation of the support structure from the working position to the non-working position in the moving contact net: The force body is directly or indirectly compressed by the first force spring during the movement of the force body, and the pushing force generated by the first force spring directly or indirectly acts on the support structure, thereby pushing the support structure to rotate to the non-working position; During the rotation of the support structure from the non-working position to the working position in the moving contact net: The force body is directly or indirectly compressed by the second force spring during the movement of the force body, and the pushing force generated by the second force spring directly or indirectly acts on the support structure, thereby pushing the support structure to rotate to the working position.

12. A compensating swing-arm moveable catenary according to claim 11, characterised in that: Further comprising a fixed stopper arranged on the force body, the fixed stopper being used for extruding or stretching the spring during the movement of the force body; The pushing force or the pulling force generated by the spring directly or indirectly acts on the support structure, thereby pushing or pulling the support structure to rotate to the working position, or to rotate to the non-working position, or to switch between the working position and the non-working position.

13. A compensating swing-arm moveable catenary according to claim 12, characterised in that: Further comprising a rotating mechanism arranged on the support structure; the force transmission mechanism is directly or indirectly arranged on the rotating mechanism.

14. The compensating swing-arm moveable catenary of claim 1, wherein: Further comprising a first force mechanism and / or a second force mechanism: The first case: only one force mechanism is arranged: The first force mechanism is arranged at any end of the moving contact net, and the first force mechanism is used for controlling the moving contact net to switch between the working position and the non-working position; or The second case: one force mechanism is arranged at each end of the moving contact net: The force provided by the first force mechanism directly or indirectly acts on one end of the force body, and the force provided by the second force mechanism directly or indirectly acts on the other end of the force body.

15. A compensating swing-arm moveable catenary according to claim 14, characterised in that: The first force mechanism and / or the second force mechanism act to drive the movement of the force body, and the movement of the force body directly or indirectly drives one or more support structures to rotate to the working position; or to rotate to the non-working position; or to switch between the working position and the non-working position.

16. A compensating swing-arm moveable catenary according to claim 15, characterised in that: The first force mechanism and the second force mechanism respectively adopt one or a combination of more than two of the following: a plummet structure, a dragging mechanism, a hydraulic drive device, and an electric drive device to provide the force.

17. A compensating swing-arm moveable catenary according to claim 16, characterised in that: Further comprising a tension sensor arranged at one end or both ends of the force body, the tension sensor being used for detecting the tension of the force body to control the first force mechanism and / or the second force mechanism to increase or decrease the tension of the force body.

18. The compensating swing-arm moveable catenary of claim 17, wherein: The force body comprises a load-bearing cable and / or a contact wire; In addition, when the force receiving body comprises a bearing cable and a contact wire, a rotating wheel is further arranged to evenly distribute the force, the force provided by the first force mechanism and / or the second force mechanism is applied to the rotating wheel, and the force is evenly distributed to either end of the bearing cable and the contact wire or both ends of the bearing cable and the contact wire through the rotating wheel.

19. A compensating swing-arm moveable catenary according to claim 18, characterised in that: The first force mechanism and / or the second force mechanism interact to drive the movement of the force receiving body, and the force receiving body directly or indirectly drives one or more support structures to rotate to a working position during the movement of the force receiving body; or rotates to a non-working position; or switches between the working position and the non-working position.

20. A compensating swing-arm moveable catenary according to claim 19, characterised in that: During the rotation of the entire moving contact net, in the case of rotating from the working position to the non-working position: Case one: the initial state is that the support structures are all above the railway, and the force receiving body is driven to move, in this state, the force receiving body compresses or stretches the corresponding spring; the thrust or pull force formed by the spring overcomes the static state of the support structure on the column, and pushes or pulls the support structure to rotate; Case two: the force generated during the movement of the force receiving body is transmitted through the spring, and when the first support structure stops rotating, the force receiving body further moves to compress or stretch the spring, in this state, the force receiving body and the support structure that has stopped rotating have a relative movement relationship; Case three: the force receiving body is further moved, and the support structure that is closer to the stopped support structure is further compressed or stretched by the force receiving body to push or pull the support structure to rotate to the non-working position, in this case, the force receiving body and the support structure have a relative movement relationship, and the support structure is still rotating; that is, the force receiving body and the support structure have a relative movement relationship, and the moving force receiving body pushes or pulls the support structure to further rotate; when the support structure in this state rotates to the non-working position, the support structure stops rotating, and the force receiving body is further driven to move, in this state, the relationship between the force receiving body and the corresponding support structure will transition to the above-mentioned case two; Case four: in the moving contact net, the remaining support structures that are farther away from the stopped support structure, in this state, the force receiving body compresses or stretches the spring to make the corresponding support structure rotate; when the force receiving body is further moved, the relationship between the force receiving body and the corresponding support structure will transition to the above-mentioned case three.

21. A method of operating a catenary with a swing arm movement compensation, characterized in that: The method adopts the compensation swing arm moving contact net of any one of claims 1 to 20, and the operation steps are as follows: A plurality of support structures are arranged in the moving contact net; The force receiving body can be driven to move; The driving force directly or indirectly acts on one or more support structures; During the movement of the force receiving body, the following relationships exist between the force receiving body and each corresponding support structure, or a combination of two relationships, or all three relationships exist: First: the force receiving body directly or indirectly drives a plurality of support structures to rotate during the movement of the force receiving body, and the force receiving body and the corresponding support structure have a relative movement; Second: the force receiving body directly or indirectly drives the support structure to rotate during the movement of the force receiving body; There is no relative movement between the force body and the corresponding support structure; Third: In the process of switching the mobile contact net between the working position and the non-working position, when part of the support structure stops rotating, the force body can further move relative to the stopped rotating support structure.

22. The method of operating a compensating swing-arm moveable catenary of claim 21, wherein: In the mobile contact net, the force body can move relative to the support structure; Alternatively, the force body can directly or indirectly slide on the support structure.

23. The method of operating a compensating swing-arm moveable catenary of claim 22, wherein: In the process of rotating the several support structures from the working position to the non-working position or from the non-working position to the working position, the maximum horizontal movement distance of the force body in the horizontal direction of at least one support structure can be greater than the maximum horizontal distance of the corresponding support structure rotating; or the maximum horizontal movement distance of the force body in the horizontal direction can be greater than the length of the rotating radius of the support structure.

24. The method of operating a compensating swing-arm moveable catenary of claim 23, wherein: The force body is driven to move directly or indirectly to drive one or more support structures to rotate from the working position to the non-working position; or from the non-working position to the working position; or switch between the working position and the non-working position.

25. The method of operating a compensating swing-arm moveable catenary of claim 24, wherein: The force transmission mechanism directly or indirectly forms a pushing force or a pulling force during the movement of the force body, which directly or indirectly acts on the support structure, thereby pushing or pulling the support structure to rotate.

26. The method of operating a compensating swing-arm moveable catenary of claim 25, wherein: The force transmission mechanism includes a spring, the movement of the force body compresses the spring, and the pushing force formed by the spring directly or indirectly acts on the support structure, thereby pushing the support structure to rotate; or The movement of the force body stretches the spring, and the pulling force formed by the spring directly or indirectly acts on the support structure, thereby pulling the support structure to rotate.

27. The method of operating a compensating swing-arm moveable catenary of claim 26, wherein: The pushing force or the pulling force formed by the spring directly or indirectly acts on the support structure, thereby pushing or pulling the support structure to rotate; or The pushing force or the pulling force formed by the spring directly or indirectly acts on the support structure, thereby pushing or pulling the support structure to further rotate.

28. A method of operating a catenary according to any one of claims 21 to 27, characterised in that: Define the number of support structures in the mobile contact net as M, and define the number of support structures rotating to the non-working position as N; After N support structures rotate to the non-working position, the force body can be further driven to drive the remaining (M-N) support structures to further rotate to the non-working position.

29. The method of operating a compensating swing-arm pantograph of claim 28, wherein: In the mobile contact net, when the first support structure stops rotating, the force body can be driven to further move on the stopped rotating support structure.

30. The method of operating a compensating swing-arm catenary of claim 29, wherein: In the process of rotating the mobile contact net from the non-working position to the working position, the process does not use the force transmission mechanism to transmit force, and the force body directly or indirectly drives the support structure to rotate upwards of the railway.

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