Gravity compensation type mobile contact network and operation control method

Abstract

The present invention relates to a gravity-compensated mobile contact network and an operation control method, comprising a mobile contact network, a first gravity contact network compensation device and a second gravity contact network compensation device; the first gravity contact network compensation device and the second gravity contact network compensation device respectively adjust the working state of the mobile contact network from both ends of the mobile contact network. When the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are in a first working position state or a second working position state; when in an unbalanced state, the contact wires in the mobile contact network move from the first working position state to the second working position state, or the contact wires in the mobile contact network move from the second working position state to the first working position state. The gravity-compensated mobile contact network has the advantages of low cost, simple operation, convenient installation, maintenance and similar structure to the fixed contact network. It can effectively meet the needs of 10,000-ton train cargo loading and unloading lines or warehousing maintenance.

Description

Technical Field

[0001] The invention belongs to the field of electrified railway mobile contact network, and in particular relates to a gravity compensation type mobile contact network and an operation control method. Background Art

[0002] With the advancement of railway electrification, China's railway trunk lines are using electric locomotives instead of diesel locomotives. Electrification is achieved in cargo loading and unloading lines or warehousing and maintenance. At present, a rigid movable contact network is used, but the existing rigid movable contact network system is extremely expensive, complex in structure and inconvenient to install, has high requirements for line use conditions, and has poor structural reliability; it uses an electric motor to drive the rotating bracket to rotate, thereby driving the entire movable contact network moving section to the side of the rail. In this way, the bus is installed as a whole at the end of the rotating bracket, and it is difficult to control the synchronization of the motor or electric push rod drive due to the large number of motors.

[0003] On the other hand, the prior art also uses a flexible movable contact network, which uses a motor to directly drag the load-bearing cable on one side of the flexible contact network to move the contact line to the side of the rail. This method has defects such as insufficient dragging force and unstable operation for a long-distance movable contact network of an entire anchor section. Since it only uses one weight, the length of the movable contact network generally does not exceed 800m.

[0004] A 10,000-ton heavy-load train is an extra-long and extra-heavy freight train that is pulled by two or more locomotives. Its characteristics are: large vehicle load capacity; large number of trains. According to the existing railway main technical policies, the effective length of the station's arrival and departure line is 1050m for a 5,000-ton heavy-load freight train, and the effective length of the arrival and departure line of some stations for a 10,000-ton heavy-load freight train on a coal-transporting line is 1700m. It includes unit heavy-load trains, combined heavy-load trains, and complete heavy-load trains.

[0005] For such long-distance heavy-load trains, such as 1,400m to 1,700m 10,000-ton heavy-load trains, if diesel locomotives are used for shunting operations, multiple vehicles need to be detrained, and the existing technology is costly, requiring the rental of diesel vehicles to park at the loading and unloading point; when the electric traction vehicle arrives at the loading and unloading point, the diesel vehicle and the electric traction vehicle need to be swapped, which is extremely inefficient; in order to be able to swap traction vehicles, new parking lines and conversion lines need to be built, increasing investment. The key point is that the current diesel locomotives do not have high-power locomotives and cannot tow heavy-load trains. Among the current flexible contact network technologies, including existing practical applications and prior patent application documents, there is no flexible mobile contact network that can meet the requirements of 10,000-ton train cargo loading and unloading lines or warehousing and maintenance. Summary of the invention

[0006] Through the continuous research and practice of the applicant, a flexible gravity-compensated mobile contact network is proposed. Compared with the rigid contact network, the flexible contact network has lower cost, more reliable operation, less weather impact, and simpler maintenance. The contact network provided by this application overcomes the shortcomings of the prior art and uses gravity supplementation to move. It is effectively improved on the basis of the existing contact network, and can achieve longer distance (1600m-1700m) of overall movement. In addition to being able to meet the freight train cargo loading and unloading lines or storage maintenance of existing locomotives, it can also be effectively applied to heavy-load trains such as 10,000-ton trains.

[0007] To achieve the above-mentioned objectives, the present invention provides, on the one hand, a gravity-compensated mobile contact network, comprising a mobile contact network, a first gravity contact network compensation device and a second gravity contact network compensation device; wherein the first gravity contact network compensation device is arranged at one end of the mobile contact network; the second gravity contact network compensation device is arranged at the other end of the mobile contact network, and the first gravity contact network compensation device and the second gravity contact network compensation device respectively adjust the working state of the mobile contact network from both ends of the mobile contact network.

[0008] Furthermore, when the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are in a first working position state or a second working position state;

[0009] When the first and second gravity contact network compensation devices are in an unbalanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are driven to move from the first working position to the second working position, or

[0010] The contact wire in the mobile contact network moves from the second working position state to the first working position state.

[0011] Furthermore, the first working position state is that the mobile contact network is located above the rail, and the second working position state is that the mobile contact network is located on one side of the rail.

[0012] Furthermore, the first gravity contact network compensation device includes a first weight, and the second gravity contact network compensation device includes a second weight; the first weight is set at one end of the load-bearing cable and / or contact wire in the mobile contact network; the second weight is set at the other end of the load-bearing cable and / or contact wire in the mobile contact network.

[0013] Further, when the first weight is located at the lowest point of the corresponding lifting area and the second weight is located at the highest point of the corresponding lifting area, the contact network is located on one side of the rail; when the first weight is located at the highest point of the corresponding lifting area and the second weight is located at the lowest point of the corresponding lifting area, the contact network is located above the rail;

[0014] When the first weight moves toward the lowest point and the second weight moves toward the highest point, the two weights drive the load-bearing cables and / or contact wires connected thereto to move toward one side of the rail, thereby driving the entire mobile contact network to move;

[0015] When the first weight moves to the highest point and the second weight moves to the lowest point, the two weights drive the load-bearing cables and / or contact wires connected thereto to move above the rails, thereby driving the entire mobile contact network to move.

[0016] Preferably, it also includes a power supply device for breaking the balanced state of the first and second gravity contact network compensation devices through the load-bearing cables and / or contact lines; and realizing that in an unbalanced state, the contact line in the mobile contact network moves from the first working position state to the second working position state, or from the second working position state to the first working position state.

[0017] More preferably, the power supply device includes two lifting motors, wherein the first lifting motor is arranged at one end of the moving contact network, above the first weight; the second lifting motor is arranged at the other end of the moving contact network, above the second weight; the output force of the lifting motor acts on the gravity contact network compensation device;

[0018] The first situation: the contact line moves from one side of the rail to above the rail;

[0019] Method 1: The first lifting motor rotates forward while the second lifting motor rotates reversely; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; or

[0020] Method 2: The first lifting motor rotates forward while the second lifting motor idles; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail;

[0021] The second situation: the contact line moves from above the rail to one side of the rail;

[0022] Method 1: The second lifting motor rotates forward while the first lifting motor rotates reversely; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail; or

[0023] Method 2: The second lifting motor rotates forward while the first lifting motor idles; the first sinker weight descends and the second sinker weight rises, and the first sinker weight and the second sinker weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail.

[0024] Preferably, the power supply device comprises a hydraulic device, which is arranged at one end or the other end of the mobile contact network; the output force of the hydraulic device acts on the gravity contact network compensation device;

[0025] The first case: the hydraulic device is arranged above the weight, and the output shaft of the hydraulic device is connected to the upper end of the weight;

[0026] The output shaft of the hydraulic device retracts to pull the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail;

[0027] The output shaft of the hydraulic device extends to push the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail;

[0028] The second situation: the hydraulic device is arranged below the weight, and the output shaft of the hydraulic device is connected to the lower end of the weight;

[0029] The output shaft of the hydraulic device extends to push the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail;

[0030] The output shaft of the hydraulic device retracts to pull the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail;

[0031] Preferably, the power supply device comprises an electric push rod, which is arranged at one end or the other end of the mobile contact network; the output force of the electric push rod acts on the gravity contact network compensation device;

[0032] The first case: the electric push rod is arranged above the weight, and the output shaft of the electric push rod is connected to the upper end of the weight;

[0033] The output shaft of the electric push rod retracts to pull the first weight up, and in an unbalanced state, the second weight drops, thereby driving the contact line to move from one side of the rail to above the rail;

[0034] The output shaft of the electric push rod extends to push the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail;

[0035] The second situation: the electric push rod is arranged below the weight, and the output shaft of the electric push rod is connected to the lower end of the weight;

[0036] The output shaft of the electric push rod extends to push the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail;

[0037] The output shaft of the electric push rod retracts to pull the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail;

[0038] Furthermore, it also includes a first sinker frame and a second sinker frame, wherein the first sinker is arranged on the first sinker frame, and the second sinker is arranged on the second sinker frame.

[0039] Furthermore, the mobile contact network includes a plurality of columns, each of which is provided with a rotating swing arm that can rotate around the column, and the load-bearing cables and contact wires are arranged on the rotating swing arm; or the contact wire is arranged on the rotating swing arm.

[0040] Another aspect of the present invention provides a method for operating and controlling a gravity-compensated mobile contact network. The method adopts the gravity-compensated mobile contact network described above, and the specific steps are as follows:

[0041] The first gravity contact network compensation device is arranged at one end of the mobile contact network; the second gravity contact network compensation device is arranged at the other end of the mobile contact network, and the first gravity contact network compensation device and the second gravity contact network compensation device respectively adjust the working state of the mobile contact network from both ends of the mobile contact network;

[0042] When the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are in a first working position state or a second working position state; when the first and second gravity contact network compensation devices are in an unbalanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are driven to move from the first working position state to the second working position state, or the contact wires in the mobile contact network are driven to move from the second working position state to the first working position state.

[0043] As a preferred embodiment, the first gravity contact network compensation device includes a first weight, and the second gravity contact network compensation device includes a second weight; the first weight is arranged at one end of the catenary and / or contact wire in the mobile contact network; the second weight is arranged at the other end of the catenary and / or contact wire in the mobile contact network;

[0044] When the first weight is located at the lowest point of the corresponding lifting area and the second weight is located at the highest point of the corresponding lifting area, the contact line is located on one side of the rail; when the first weight is located at the highest point of the corresponding lifting area and the second weight is located at the lowest point of the corresponding lifting area, the contact line is located above the rail;

[0045] When the first weight moves toward the lowest point and the second weight moves toward the highest point, the first weight drives the load-bearing cable and / or contact wire connected thereto to move toward one side of the rail, thereby driving the entire mobile contact network to move;

[0046] When the first weight moves toward the highest point and the second weight moves toward the lowest point, the second weight drives the load-bearing cables and / or contact wires connected thereto to move above the rails, thereby driving the entire mobile contact network to move.

[0047] Furthermore, the power supply device is used to break the balanced state of the first and second gravity contact network compensation devices through the load-bearing cables and / or contact lines; and to realize that in an unbalanced state, the contact line in the mobile contact network moves from the first working position state to the second working position state, or from the second working position state to the first working position state.

[0048] Preferably, the power supply device comprises two lifting motors, wherein the first lifting motor is arranged at one end of the mobile contact network and is located above the first weight; the second lifting motor is arranged at the other end of the mobile contact network and is located above the second weight; the output force of the lifting motor acts on the gravity contact network compensation device;

[0049] The first situation: the contact line moves from one side of the rail to above the rail;

[0050] Method 1: The first lifting motor rotates forward while the second lifting motor rotates reversely; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; or

[0051] Method 2: The first lifting motor rotates forward while the second lifting motor idles; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail;

[0052] The second situation: the contact line moves from above the rail to one side of the rail;

[0053] Method 1: The second lifting motor rotates forward while the first lifting motor rotates reversely; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail; or

[0054] Method 2: The second lifting motor rotates forward while the first lifting motor idles; the first sinker weight descends and the second sinker weight rises, and the first sinker weight and the second sinker weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail.

[0055] The present invention adopts the above technical solution, and the present invention has at least the following beneficial effects:

[0056] 1) The traditional rigid movable contact network has a complex structure, needs to carry a rigid busbar, has many parts and components, is heavy, and the spacing between the columns is 9-12M. The gravity-compensated movable contact network provided by the present invention can be set at a spacing of 40-50M between the columns. The flexible contact network load-bearing cables provided by the present invention are more evenly stressed, have a short construction period, are less affected by factors such as weather and temperature differences, can be widely used in various harsh environments, have a long service life, can be improved on the basis of the existing contact network, are convenient to install and maintain, and have many advantages such as a similar structure to a fixed contact network.

[0057] 2) In the traditional flexible movable contact network, the load-bearing cable is directly dragged on one side. This method has insufficient dragging force for long-distance mobile contact networks. At the same time, the one-sided dragging method is highly destructive to the structure of the contact network itself, and there are potential safety risks and unstable operation. The present invention adopts a double-sided gravity balance method, which only requires less external driving force to destroy the original balance system. It is for this reason that the present invention proposes to use gravity compensation to achieve the movement of the flexible contact network. The present invention uses weights on both sides to destroy the balance relationship between the two weights and use less driving force to achieve long-distance, such as (1600m-1700m) overall movement. This movement method is an innovation in the current movable flexible contact network. No existing technology or prior patent has been found to use the device provided by the present invention to achieve the movement of the flexible movable contact network.

[0058] 3) By adopting the device provided by the present invention, 10,000-ton heavy-load trains will no longer use diesel locomotives for shunting operations, which overcomes the traditional situation of needing to decouple multiple cars or even being unable to tow heavy-load trains. It can effectively meet the needs of 10,000-ton train cargo loading and unloading lines or warehousing and maintenance, improve work efficiency, greatly save the cost of purchasing diesel locomotives, and save the existing labor costs for deploying, maintaining and overhauling diesel locomotives. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0060] Figure 1 A is a front view of the gravity-compensated mobile contact network of the present invention;

[0061] Figure 1 B is a top view of the contact line of the gravity-compensated movable contact network of the present invention located directly above the rail;

[0062] Figure 1 C is a top view of the contact line of the gravity-compensated movable contact network of the present invention located on one side of the rail;

[0063] Figure 2 It is a structural schematic diagram of the gravity contact network compensation device of the present invention (with two motors);

[0064] Figure 3 It is a structural schematic diagram of a gravity-compensated mobile contact network with a hydraulic device according to the present invention;

[0065] Figure 4 This is one of the schematic diagrams of the installation structure of the hydraulic device of the present invention;

[0066] Figure 5 This is the second schematic diagram of the installation structure of the hydraulic device of the present invention;

[0067] Figure 6 It is a flow chart of the gravity compensation type mobile contact network operation control method of the present invention;

[0068] Figure 7 It is a flow chart of the control of the weight and the contact line in the gravity compensation type mobile contact network of the present invention;

[0069] Figure 8 The present invention is a flow chart of the gravity compensation type mobile contact network using a lifting motor control.

[0070] In the figure: 1. mobile contact network; 2. first gravity contact network compensation device; 3. second gravity contact network compensation device; 4. contact line; 5. load-bearing cable; 6. output shaft; 7. column; 8. rotating swing arm; 9. first sinker; 10. second sinker; 11a. first lifting motor; 11b. second lifting motor; 12. first sinker frame; 13. second sinker frame; 14. hydraulic device; Max-H: the sinker is located at the highest point of the corresponding lifting area; Min-H: the sinker is located at the lowest point of the corresponding lifting area. DETAILED DESCRIPTION

[0071] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices consistent with some aspects of the present invention as detailed in the appended claims.

[0072] like Figure 1As shown in Figure A, this embodiment provides a gravity-compensated mobile contact network, including a mobile contact network 1, a first gravity contact network compensation device 2, and a second gravity contact network compensation device 3; wherein the first gravity contact network compensation device 2 is arranged at one end of the mobile contact network 1; the second gravity contact network compensation device 3 is arranged at the other end of the mobile contact network 1, and the first gravity contact network compensation device 2 and the second gravity contact network compensation device 3 respectively adjust the working state of the mobile contact network 1 from both ends of the mobile contact network. The mobile contact network includes a plurality of columns 7, each of which is provided with a rotating swing arm 8 that can rotate around the column, and the load-bearing cable 5 is arranged on the rotating swing arm.

[0073] In the gravity-compensated mobile contact network provided in this embodiment, when the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables 5 and / or the contact wire 4, the contact wire in the mobile contact network is in a first working position state or a second working position state; in this embodiment, the first working position state is that the mobile contact network is located above the rail (such as Figure 1 B), the second working position state is that the mobile contact network is located on one side of the rail (such as Figure 1 C).

[0074] It should be noted that, in the present embodiment, the gravity contact network compensation device is connected to the load-bearing cable 5 and / or the contact wire 4 at the same time, which is only used as an optimal implementation method. If it is only connected to the load-bearing cable 5, the movement of the load-bearing cable 5 can drive the hanging contact wire to move together. In some cases, if there is only a contact wire, the gravity contact network compensation device is only connected to the contact wire 4 to achieve movement, and the contact wire close to the weight can be connected to the pull wire of the weight using an insulator. The principle of this implementation method is the same, so it will not be repeated here.

[0075] When the first and second gravity contact network compensation devices are in an unbalanced state through the load-bearing cable 5 and / or the contact wire 4, the contact wire in the mobile contact network is driven to move from the first working position state to the second working position state (from Figure 1 B moves to Figure 1 C state), or the contact wire in the mobile contact network moves from the second working state to the first working state (from Figure 1 CMove to Figure 1 B status); Figure 1 Schematic diagram of the structure in which the gravity contact network compensation device is connected to the load-bearing cable 5 and the contact wire 4 is shown.

[0076] like Figure 2As described, in this embodiment, the first gravity contact network compensation device 2 includes a first weight 9, and the second gravity contact network compensation device 3 includes a second weight 10; the first weight 9 is connected to the load-bearing cable 5 and the contact wire 4 at one end of the mobile contact network 1; the second weight 10 is connected to the load-bearing cable 5 and the contact wire 4 at the other end of the mobile contact network 1.

[0077] Please combine Figure 1 B and Figure 2 As shown, when the first weight 9 is located at the lowest point Min-H of the corresponding lifting area and the second weight 10 is located at the highest point Max-H of the corresponding lifting area, the contact network is located on one side of the rail; Figure 1 C and Figure 2 When the first weight 9 is located at the highest point Max-H of the corresponding lifting area and the second weight 10 is located at the lowest point Min-H of the corresponding lifting area, the contact network is located above the rails;

[0078] The operation process is as follows: when the first weight 9 moves to the lowest point and the second weight 10 moves to the highest point, the first weight drives the load-bearing cable 5 and the contact wire 4 connected thereto to move to one side of the rail, thereby driving the entire mobile contact network to move; when the first weight 9 moves to the highest point and the second weight 10 moves to the lowest point, the second weight drives the load-bearing cable 5 and the contact wire 4 connected thereto to move above the rail, thereby driving the entire mobile contact network to move.

[0079] In the present invention, the weights on both sides are symmetrically arranged, preferably with equal weights, so that the load-bearing cable can be understood as not moving left and right in a balanced state. Figure 1 In B and 1C, the left movement of the catenary cable is defined as driving the contact wire to move sideways to the side of the rail (open state, this state is when the train stops for loading and unloading or maintenance), and the right movement of the catenary cable is defined as driving the contact wire to swing back to just above the rail (the train pantograph is raised to draw power from the contact wire, this state is when the train enters or leaves the station). Of course, this left and right definition is not a limitation on the protection of the rights of the present invention. Similarly, according to actual conditions, the right movement of the catenary cable can be defined as the contact wire moving sideways to the side of the rail. The principle is the same and will not be repeated here.

[0080] This embodiment also includes a power supply device for breaking the balanced state of the first and second gravity contact network compensation devices through the load-bearing cables and / or contact lines; and realizing, in an unbalanced state, driving the contact line in the mobile contact network to move from the first working position state to the second working position state, or from the second working position state to the first working position state.

[0081] like Figure 2As shown, two pulling motors are provided in this embodiment, the first pulling motor 11a is arranged at one end of the moving contact network, above the first weight 9; the second pulling motor 11b is arranged at one end of the moving contact network, above the second weight 10; the output force of the pulling motor acts on the gravity contact network compensation device; it should be supplemented that the provision of external driving force is intended to destroy the equilibrium state of the moving contact network.

[0082] The first situation: the contact line moves from one side of the rail to above the rail;

[0083] Method 1 (two motors working at the same time): the first lifting motor 11a rotates forward while the second lifting motor 11b rotates reversely; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to above the rail; or

[0084] Mode 2 (one motor works while the other motor idles): the first weight rises, the second weight falls, the first weight and the second weight are in an unbalanced state, the first lifting motor 11a rotates forward while the second lifting motor 11b idles; thereby driving the contact wire to move from one side of the rail to above the rail;

[0085] The second situation: the contact line moves from above the rail to one side of the rail;

[0086] Method 1 (two motors working at the same time): the second lifting motor 11b rotates forward while the first lifting motor 11a rotates reversely; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail; or

[0087] Method 2 (one motor is working while the other is idling): the second pulling motor 11b rotates forward while the first pulling motor 11a is idling; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail.

[0088] The above method is to change the equilibrium state by acting on the load-bearing cable through the lifting motor. In fact, the equilibrium state can also be changed by directly acting on the weight through external force. This is just an extended explanation and no corresponding drawings are provided.

[0089] In this embodiment, the power supply device includes a hydraulic device 14, which is arranged at one end or the other end of the mobile contact network; the output force of the hydraulic device acts on the gravity contact network compensation device;

[0090] like Figure 3 and Figure 4 As shown, the first case: Figure 3As shown, the hydraulic device 14 is arranged on the first weight frame 12, located above the first weight 9, and the output shaft of the hydraulic device is connected to the upper end of the first weight 9;

[0091] The output shaft 6 of the hydraulic device 14 retracts to pull the first weight 9 upward to move toward the highest point Max-H. In an unbalanced state, the second weight 10 moves downward to move toward the lowest point Min-H, thereby driving the contact line to move from one side of the rail to above the rail.

[0092] The output shaft 6 of the hydraulic device 14 extends to push the first weight 9 down to the lowest point Min-H. In an unbalanced state, the second weight 10 rises to the highest point Max-H, thereby driving the contact line to move from above the rail to one side of the rail.

[0093] like Figure 5 As shown, in the second case, the hydraulic device 14 is arranged below the first weight 9, and the output shaft 6 of the hydraulic device 14 is connected to the lower end of the first weight 9;

[0094] The output shaft 6 of the hydraulic device 14 extends to push the first weight 9 to move upward to the highest point Max-H. In an unbalanced state, the second weight 10 moves downward to the lowest point Min-H, thereby driving the contact line to move from one side of the rail to the top of the rail.

[0095] The output shaft 6 of the hydraulic device 14 retracts to pull the first weight 9 down to the lowest point Min-H. In an unbalanced state, the second weight 10 rises to the highest point Max-H, thereby driving the contact line to move from above the rail to one side of the rail.

[0096] This embodiment also provides another implementation (not shown in the figure), the power supply device includes an electric push rod, and the electric push rod is arranged at one end or the other end of the mobile contact network; the output force of the electric push rod acts on the gravity contact network compensation device;

[0097] The first case: the electric push rod is arranged above the weight, and the output shaft of the electric push rod is connected to the upper end of the weight;

[0098] The output shaft of the electric push rod retracts to pull the first weight up, and in an unbalanced state, the second weight drops, thereby driving the contact line to move from one side of the rail to above the rail;

[0099] The output shaft of the electric push rod extends to push the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail;

[0100] The second situation: the electric push rod is arranged below the weight, and the output shaft of the electric push rod is connected to the lower end of the weight;

[0101] The output shaft of the electric push rod extends to push the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail;

[0102] The output shaft of the electric push rod retracts to pull the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail;

[0103] This embodiment further includes a first sinker frame 12 and a second sinker frame 13 . The first sinker 9 is arranged on the first sinker frame 12 , and the second sinker 10 is arranged on the second sinker frame 13 .

[0104] Figure 6 The present invention discloses a gravity-compensated mobile contact network operation control method, wherein the operation control method adopts the gravity-compensated mobile contact network, and the specific steps are as follows:

[0105] The first gravity contact network compensation device is arranged at one end of the mobile contact network; the second gravity contact network compensation device is arranged at the other end of the mobile contact network, and the first gravity contact network compensation device and the second gravity contact network compensation device respectively adjust the working state of the mobile contact network from both ends of the mobile contact network;

[0106] S1. When the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables and / or the contact wires, the contact wire in the mobile contact network is in a first working position state or a second working position state; S2. When the first and second gravity contact network compensation devices are in an unbalanced state through the load-bearing cables and / or the contact wires, the contact wire in the mobile contact network moves from the first working position state to the second working position state, or the contact wire in the mobile contact network moves from the second working position state to the first working position state.

[0107] As a preferred implementation, please refer to Figure 1 and Figure 2 , the first gravity contact network compensation device includes a first weight, and the second gravity contact network compensation device includes a second weight; the first weight is arranged at one end of the load-bearing cable and / or the contact wire in the mobile contact network; the second weight is arranged at the other end of the load-bearing cable and / or the contact wire in the mobile contact network;

[0108] like Figure 2 and Figure 7As shown, S11, when the first weight is located at the lowest point of the corresponding lifting area and the second weight is located at the highest point of the corresponding lifting area, the contact line is located on one side of the rail; when the first weight is located at the highest point of the corresponding lifting area and the second weight is located at the lowest point of the corresponding lifting area, the contact line is located above the rail; S12, when the first weight moves to the lowest point and the second weight moves to the highest point, the first weight drives the load-bearing cable and / or contact line connected thereto to move to one side of the rail, thereby driving the entire mobile contact network to move; S13, when the first weight moves to the highest point and the second weight moves to the lowest point, the second weight drives the load-bearing cable and / or contact line connected thereto to move above the rail, thereby driving the entire mobile contact network to move.

[0109] In this embodiment, the power supply device is used to break the first and second gravity contact network compensation devices in a balanced state through the bearing cables and / or contact lines; and to realize that in an unbalanced state, the contact line in the mobile contact network moves from the first working position state to the second working position state, or from the second working position state to the first working position state.

[0110] As a preferred embodiment, the power supply device includes two lifting motors, wherein the first lifting motor is arranged at one end of the mobile contact network, above the first weight; the second lifting motor is arranged at the other end of the mobile contact network, above the second weight; the output force of the lifting motor acts on the gravity contact network compensation device;

[0111] like Figure 8 As shown, the first situation: the contact line moves from one side of the rail to the top of the rail;

[0112] Method 1: The first lifting motor rotates forward while the second lifting motor rotates reversely; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; or

[0113] Method 2: The first lifting motor rotates forward while the second lifting motor idles; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail;

[0114] The second situation: the contact line moves from above the rail to one side of the rail;

[0115] Method 1: The second lifting motor rotates forward while the first lifting motor rotates reversely; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail; or

[0116] Method 2: The second lifting motor rotates forward while the first lifting motor idles; the first sinker weight descends and the second sinker weight rises, and the first sinker weight and the second sinker weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail.

[0117] By adopting the device provided by the present invention, 10,000-ton heavy-load trains will no longer use diesel locomotives for shunting operations, overcoming the traditional situation of needing to decouple multiple cars or even being unable to tow heavy-load trains. It can effectively meet the needs of 10,000-ton train cargo loading and unloading lines or warehousing and maintenance, improve work efficiency, greatly save the cost of purchasing diesel locomotives, and save the existing labor costs of deploying, maintaining and repairing diesel locomotives. The gravity-compensated mobile contact network provided by the present invention can be set at a spacing of 40-50M between the columns. The flexible contact network load-bearing cables provided by the present invention are more evenly stressed, and the construction period is short. It is less affected by factors such as weather and temperature differences. It can be widely used in various harsh environments, has a long service life, can be improved on the basis of the existing contact network, and has many advantages such as convenient installation and maintenance.

[0118] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A gravity-compensated mobile contact network, characterized in that: It includes a mobile contact network, a first gravity contact network compensation device and a second gravity contact network compensation device; wherein The first gravity contact network compensation device is arranged at one end of the mobile contact network; the second gravity contact network compensation device is arranged at the other end of the mobile contact network, and the first gravity contact network compensation device and the second gravity contact network compensation device respectively adjust the working state of the mobile contact network from both ends of the mobile contact network; When the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are in a first working position state or a second working position state; when the first and second gravity contact network compensation devices are in an unbalanced state through the load-bearing cables and / or the contact wires, the contact wires in the mobile contact network are driven to move from the first working position state to the second working position state, or the contact wires in the mobile contact network are driven to move from the second working position state to the first working position state; The load-bearing cables and contact wires are arranged on the rotating swing arm; or The contact line is arranged on the rotating swing arm.

2. The gravity-compensated mobile contact network according to claim 1, characterized in that: The first gravity contact network compensation device includes a first weight, and the second gravity contact network compensation device includes a second weight; the first weight is set at one end of the load-bearing cable and / or contact wire in the mobile contact network; the second weight is set at the other end of the load-bearing cable and / or contact wire in the mobile contact network.

3. The gravity-compensated mobile contact network according to claim 2, characterized in that: It also includes a power supply device for breaking the balanced state of the first and second gravity contact network compensation devices through the load-bearing cables and / or contact lines; and driving the contact line in the mobile contact network to move from the first working position state to the second working position state, or from the second working position state to the first working position state in an unbalanced state.

4. The gravity-compensated mobile contact network according to claim 3, characterized in that: The power supply device includes two lifting motors, wherein the first lifting motor is arranged at one end of the moving contact network and is located above the first weight; the second lifting motor is arranged at the other end of the moving contact network and is located above the second weight; the output force of the lifting motor acts on the gravity contact network compensation device; The first situation: the contact line moves from one side of the rail to above the rail; Method 1: The first lifting motor rotates forward while the second lifting motor rotates reversely; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; or Method 2: The first lifting motor rotates forward while the second lifting motor idles; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; The second situation: the contact line moves from above the rail to one side of the rail; Method 1: The second lifting motor rotates forward while the first lifting motor rotates reversely; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail; or Method 2: The second lifting motor rotates forward while the first lifting motor idles; the first sinker weight descends and the second sinker weight rises, and the first sinker weight and the second sinker weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail.

5. The gravity-compensated mobile contact network according to claim 3, characterized in that: The first option: The power supply device comprises a hydraulic device, which is arranged at one end or the other end of the mobile contact network; the output force of the hydraulic device acts on the gravity contact network compensation device; The first case: the hydraulic device is arranged above the weight, and the output shaft of the hydraulic device is connected to the upper end of the weight; The output shaft of the hydraulic device retracts to pull the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail; The output shaft of the hydraulic device extends to push the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail; The second situation: the hydraulic device is arranged below the weight, and the output shaft of the hydraulic device is connected to the lower end of the weight; The output shaft of the hydraulic device extends to push the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail; The output shaft of the hydraulic device retracts to pull the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail; or The second solution: the power supply device includes an electric push rod, which is arranged at one end or the other end of the mobile contact network; the output force of the electric push rod acts on the gravity contact network compensation device; The first case: the electric push rod is arranged above the weight, and the output shaft of the electric push rod is connected to the upper end of the weight; The output shaft of the electric push rod retracts to pull the first weight up, and in an unbalanced state, the second weight drops, thereby driving the contact line to move from one side of the rail to above the rail; The output shaft of the electric push rod extends to push the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail; The second situation: the electric push rod is arranged below the weight, and the output shaft of the electric push rod is connected to the lower end of the weight; The output shaft of the electric push rod extends to push the first weight up, and in an unbalanced state, the second weight descends, thereby driving the contact line to move from one side of the rail to above the rail; The output shaft of the electric push rod retracts to pull the first weight down, and in an unbalanced state, the second weight rises, thereby driving the contact line to move from above the rail to one side of the rail.

6. The gravity-compensated mobile contact network according to any one of claims 1 to 5, characterized in that: The mobile contact network comprises a plurality of columns, each of which is provided with a rotating swing arm which can rotate around the column.

7. A gravity-compensated mobile contact network operation control method, characterized in that: The operation control method adopts the gravity-compensated mobile contact network described in any one of claims 1 to 6 above, and the specific steps are as follows: The first gravity contact network compensation device is arranged at one end of the mobile contact network; the second gravity contact network compensation device is arranged at the other end of the mobile contact network, and the first gravity contact network compensation device and the second gravity contact network compensation device respectively adjust the working state of the mobile contact network from both ends of the mobile contact network; When the first and second gravity contact network compensation devices are in a balanced state through the load-bearing cables and / or the contact wires, the contact wire in the mobile contact network is in a first working position state or a second working position state; when the first and second gravity contact network compensation devices are in an unbalanced state through the load-bearing cables and / or the contact wires, the contact wire in the mobile contact network moves from the first working position state to the second working position state, or the contact wire in the mobile contact network moves from the second working position state to the first working position state.

8. The gravity-compensated mobile contact network operation control method according to claim 7, characterized in that: The first gravity contact network compensation device includes a first weight, and the second gravity contact network compensation device includes a second weight; the first weight is arranged at one end of the catenary and / or contact wire in the mobile contact network; the second weight is arranged at the other end of the catenary and / or contact wire in the mobile contact network; When the first weight is located at the lowest point of the corresponding lifting area and the second weight is located at the highest point of the corresponding lifting area, the contact line is located on one side of the rail; when the first weight is located at the highest point of the corresponding lifting area and the second weight is located at the lowest point of the corresponding lifting area, the contact line is located above the rail; When the first weight moves toward the lowest point and the second weight moves toward the highest point, the first weight drives the load-bearing cable and / or contact wire connected thereto to move toward one side of the rail, thereby driving the entire mobile contact network to move; When the first weight moves toward the highest point and the second weight moves toward the lowest point, the second weight drives the load-bearing cables and / or contact wires connected thereto to move above the rails, thereby driving the entire mobile contact network to move.

9. The gravity-compensated mobile contact network operation control method according to claim 8, characterized in that: The power supply device is used to break the first and second gravity contact network compensation devices in a balanced state through the load-bearing cables and / or contact lines; and to realize that in an unbalanced state, the contact line in the mobile contact network moves from the first working position state to the second working position state, or from the second working position state to the first working position state.

10. The gravity-compensated mobile contact network operation control method according to claim 9, characterized in that: The power supply device includes two lifting motors, wherein the first lifting motor is arranged at one end of the moving contact network and is located above the first weight; the second lifting motor is arranged at the other end of the moving contact network and is located above the second weight; the output force of the lifting motor acts on the gravity contact network compensation device; The first situation: the contact line moves from one side of the rail to above the rail; Method 1: The first lifting motor rotates forward while the second lifting motor rotates reversely; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; or Method 2: The first lifting motor rotates forward while the second lifting motor idles; the first weight rises and the second weight falls, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from one side of the rail to the top of the rail; The second situation: the contact line moves from above the rail to one side of the rail; Method 1: The second lifting motor rotates forward while the first lifting motor rotates reversely; the first weight descends and the second weight rises, and the first weight and the second weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail; or Method 2: The second lifting motor rotates forward while the first lifting motor idles; the first sinker weight descends and the second sinker weight rises, and the first sinker weight and the second sinker weight are in an unbalanced state, thereby driving the contact line to move from above the rail to one side of the rail.

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