A track electrification device for a low-headroom coal loading station and its application method

Abstract

The present application discloses a track electrification device for a low-headroom coal-loading station, which relates to the technical field of railway equipment and is used to enable an electric locomotive to pull a coal-carrying train directly to the coal-loading station for coal loading. The track electrification device for a low-headroom coal-loading station includes two portal frames and two mobile contact networks. The two portal frames are respectively erected on the entrance and exit sides of the coal-loading station; the two mobile contact networks are respectively erected on the two portal frames, both along the track direction. The embodiment of the present invention adopts two sets of mobile contact networks set on the entrance and exit sides of the coal-loading station. The mobile contact networks can extend or retract in accordance with the travel of the electric locomotive, which effectively solves the problem that the coal-loading station has a low headroom and cannot be equipped with a supply contact network, thereby solving the power supply problem of the electric locomotive and enabling the electric locomotive to pull a coal-carrying train directly to the coal-loading station for coal loading.

Description

Technical Field

[0001] The present application relates to the technical field of railway equipment, and in particular to a track electrification device for a low-headroom coal loading station and an application method thereof. Background Art

[0002] The coal loading station built in conjunction with the electrified coal transportation railway has a material discharge hopper that is only 5000mm above the ground, which occupies most of the upper space. A live contact network needs to be installed above the electrified railway. Therefore, in the prior art, a coal loading train pulled by a diesel locomotive is generally used to enter the coal loading station. However, this type of coal loading has the following defects:

[0003] 1. Diesel locomotives and electric locomotives need to be uncoupled and converted, which increases operation time and unsafe factors, and reduces efficiency.

[0004] 2. The spare parts for various models of diesel locomotives are not standardized and the maintenance methods are different, which increases the maintenance costs.

[0005] 3. The exhaust gas emitted by diesel locomotives does not meet environmental protection requirements, and the cost of diesel is higher than the electricity cost of electric locomotives, which is not conducive to reducing costs. Summary of the invention

[0006] The embodiment of the present application provides a low-headroom coal loading station track electrification device and an application method thereof, thereby solving the problem of internal combustion engine-driven coal-carrying trains in the prior art and enabling electric locomotive-driven coal-carrying trains to directly run to the coal loading station for coal loading.

[0007] In the first aspect, an embodiment of the present invention provides a low-headroom coal loading station track electrification device, comprising two portal frames and two mobile contact networks; the two portal frames are respectively erected on the entrance side and the exit side of the coal loading station; the two mobile contact networks are respectively erected on the two portal frames, both along the track direction, and each mobile contact network includes a conductive component and a mobile component; the conductive component is connected to the mobile component and can supply power to the electric locomotive; the mobile component is connected to the portal frame and can drive the conductive component to move along the track direction.

[0008] In a possible implementation, the low-headroom coal loading station track electrification device also includes two fixed contact networks; the two fixed contact networks are respectively erected on two portal frames, and both extend along the track direction away from the coal loading station; each fixed contact network includes a conductive component and a fixed component; the conductive component is connected to the fixed component and can supply power to the electric locomotive; the fixed component is connected to the portal frame.

[0009] In a possible implementation, the fixed contact network and the mobile contact network are in the same horizontal plane; the fixed contact network and the mobile contact network arranged on the same portal frame are arranged side by side; so that the pantograph of the electric locomotive can make a smooth transition.

[0010] In one possible implementation, the conductive components include a contact network cable, multiple groups of contact network cable fixing plates, a contact network cable fixing frame and multiple contact network cable fixing pillars; the multiple groups of contact network cable fixing plates are symmetrically arranged, and the bottoms of the symmetrical contact network cable fixing plates are bent inward to clamp the contact network cable; the contact network cable fixing plates are connected to the contact network cable fixing frames, and the contact network cable fixing frames are connected to the bottoms of multiple contact network cable fixing pillars.

[0011] In one possible implementation, the moving component includes a moving fixed beam, a driving device and a moving frame; the top of the moving fixed beam is connected to a portal frame; the bottom of the moving frame is connected to a conductive component; the driving device is installed on the moving fixed beam and connected to the moving frame to drive the moving frame to move, thereby driving the conductive component to move along the track direction.

[0012] In a possible implementation, the moving assembly further includes two sets of pulley assemblies, which are respectively connected to the two ends of the moving fixed beam; each set of pulley assemblies includes two pulley assemblies, which are respectively connected to the two sides of the moving fixed beam and are symmetrically arranged.

[0013] In a possible implementation, the mobile frame also includes two groups of mobile guide rail assemblies; the two groups of mobile guide rail assemblies are respectively arranged at both ends of the mobile frame; each group of mobile guide rail assemblies includes two mobile guide rail assemblies, the two mobile guide rail assemblies are respectively connected to the two sides of the mobile frame, and are symmetrically arranged; multiple mobile guide rail assemblies correspond one by one to multiple pulley assemblies; the pulley assemblies support the corresponding mobile guide rail assemblies to slide.

[0014] In a possible implementation, the driving device includes a driving plate, a sprocket and a transmission chain; the driving plates include two, both of which are slidably connected to the movable fixed beam, and the bottoms of the two driving plates are connected to the movable frame; two sprockets are provided, which are respectively connected to the two ends of the movable fixed beam; and at least one of the two sprockets is a driving wheel, which is externally connected to a motor for providing power; the transmission chain is mounted on the two sprockets and is driven by the motor; the two ends of the transmission chain are respectively connected to the two driving plates, thereby driving the two driving plates to move.

[0015] In one possible implementation, the fixing assembly includes a contact network line heightening fixing frame and a lifting ring; the bottom of the contact network line heightening fixing frame is connected to the top of the conductive assembly, and the top of the contact network line heightening fixing frame is connected to the portal frame; the lifting ring is arranged at the top of the contact network line heightening fixing frame, and is used for allowing the lifting device to connect to the fixed contact network when installing the fixed contact network.

[0016] In a second aspect, an embodiment of the present invention provides an application method of a low-headroom coal loading station track electrification device, comprising the following steps:

[0017] The mobile contact network extends: the mobile contact network moves to the extended position in the direction close to the coal loading station, and the green light of the signal light on the station entrance side turns on, allowing the electric locomotive to enter the station;

[0018] Electric locomotive enters the station: the rear pantograph of the electric locomotive smoothly transitions from the fixed contact network on the station entry side to the mobile contact network on the station entry side, and runs toward the coal loading station to the "replace pantograph" sign and stops;

[0019] Replacement of pantograph of electric locomotive: the rear pantograph of the electric locomotive is lowered and separated from the moving contact network on the station entrance side; the front pantograph of the electric locomotive is raised and contacts the moving contact network on the station exit side;

[0020] Electric locomotive leaving the station: the electric locomotive runs in a direction away from the coal loading station, and the front pantograph of the electric locomotive smoothly transitions from the mobile contact network on the exit side to the fixed contact network on the exit side and the cargo box pulled by the electric locomotive is located below the unloading hopper, the electric locomotive stops;

[0021] Retraction of the mobile contact network: the mobile contact network moves in a direction away from the coal loading station to a retracted position.

[0022] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0023] The embodiment of the present invention adopts the method of setting two sets of mobile contact networks on the entrance side and exit side of the coal loading station. The mobile contact networks can be extended or retracted in coordination with the travel of the electric locomotive, thereby effectively solving the problem that the coal loading station has low clearance and cannot set up the contact network, thereby solving the power supply problem of the electric locomotive and realizing the electric locomotive-to-haul coal train to run directly to the coal loading station for loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are 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.

[0025] Figure 1 A schematic diagram of the structure of a low-headroom coal loading station track electrification device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the top view of the structure of the low-headroom coal loading station track electrification device provided in an embodiment of the present application;

[0027] Figure 3A schematic diagram of the structure of the contact network provided in the embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of a fixed contact network provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the structure of a mobile contact network provided in an embodiment of the present application;

[0030] Figure 6 A schematic diagram of a partial structure of a mobile contact network provided in an embodiment of the present application;

[0031] Figure 7 A flow chart of an application method of a low-headroom coal loading station track electrification device provided in an embodiment of the present application;

[0032] Figure 8 A schematic diagram of extending the mobile contact network at the station entrance side of the application method provided in an embodiment of the present application;

[0033] Fig. 9 A schematic diagram of an electric locomotive entering a station according to the application method provided in an embodiment of the present application;

[0034] Fig.10 A schematic diagram of an electric locomotive pantograph conversion method provided by an embodiment of the present application;

[0035] Fig.11 A schematic diagram of an electric locomotive leaving a station according to the application method provided in an embodiment of the present application;

[0036] Fig.12 A schematic diagram of the retraction of a mobile contact network according to the application method provided in an embodiment of the present application.

[0037] Figure markings: 1-coal loading station; 2-track; 3-electric locomotive; 31-rear pantograph; 32-front pantograph; 33-cargo box; 4-gantry; 5-contact network; 51-fixed contact network; 511-fixed component; 5111-contact network line heightening fixed frame; 5112-lifting hanging ring; 52-movable contact network; 521-movable component; 5211-movable fixed beam; 5212-driving plate; 5213-driving device; 5214-moving frame; 52141-movable guide rail assembly; 5215-pulley assembly; 53-conductive assembly; 531-contact network line; 532-contact network line fixing plate; 533-contact network line fixing frame; 534-contact network line fixing support. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0040] This embodiment provides a low headroom coal loading station track electrification device. Please refer to the accompanying drawings in the specification. Figures 1 to 6 .

[0041] Reference Figure 1 and Figure 2 As shown, the low-headroom coal loading station track electrification device includes two portal frames 4 and two mobile contact networks 52. The two portal frames 4 are respectively erected on the entrance side and the exit side of the coal loading station 1; the two mobile contact networks 52 are respectively erected on the two portal frames 4, both along the track 2 direction, and each mobile contact network 52 includes a conductive component 53 and a mobile component 521; the conductive component 53 is connected to the mobile component 521, and can supply power to the electric locomotive 3; the mobile component 521 is connected to the portal frame 4, and can drive the conductive component 53 to move along the track 2 direction.

[0042] The two mobile contact networks 52 are respectively arranged on the portal frames 4 on the entrance and exit sides of the coal loading station 1. The maximum limit of movement of the two mobile contact networks 52 in the direction away from the coal loading station 1 is the retracted position; the maximum limit of movement of the two mobile contact networks 52 in the direction close to the coal loading station 1 is the extended position. When the electric locomotive 3 pulls the cargo box 33 into the coal loading station 1 for coal loading, the mobile contact network 52 can move in accordance with the travel of the electric locomotive 3 to ensure the power supply demand of the electric locomotive 3. The conductive component 53 of the mobile contact network 52 is used to contact the pantograph of the electric locomotive 3, and then supply power to the electric locomotive 3. The mobile component 521 is connected to the portal frame 4, and is used to fix the mobile contact network 52, and the mobile component 521 can drive the conductive component 53 to move, so as to realize the mobile power supply of the mobile contact network 52.

[0043] The embodiment of the present invention adopts the method of setting two sets of mobile contact networks 52 on the entrance side and exit side of the coal loading station 1. The mobile contact network 52 can be extended or retracted in coordination with the travel of the electric locomotive 3, thereby effectively solving the problem that the contact network 5 cannot be set up due to the low clearance of the coal loading station 1, and further solving the power supply problem of the electric locomotive 3, and realizing that the electric locomotive 3 can pull the coal-transporting special train directly to the coal loading station 1 for coal loading.

[0044] Reference Figure 4 As shown, the low headroom coal loading station track electrification device further comprises two fixed contact nets 51. The two fixed contact nets 51 are respectively mounted on two portal frames 4, and both extend in the direction of the track 2 away from the coal loading station 1.

[0045] The fixed contact network 51 is used to supply power to the electric locomotive 3. The conductive components 53 of the two fixed contact networks 51 extend away from the coal loading station 1 respectively, and their working range is the travel area before the electric locomotive 3 enters the station and the travel area after the electric locomotive 3 leaves the station.

[0046] Each fixed contact network 51 includes a conductive component 53 and a fixed component 511. The conductive component 53 is connected to the fixed component 511; the fixed component 511 is connected to the portal frame 4. The fixed component 511 is connected to the portal frame 4 at the top and the conductive component 53 at the bottom, and is used to fix and support the conductive component 53. The conductive component 53 supplies the electricity obtained from the transformer to the electric locomotive 3.

[0047] Reference Figures 1 to 3 As shown, the fixed contact network 51 and the movable contact network 52 are in the same horizontal plane; the fixed contact network 51 and the movable contact network 52 arranged on the same portal frame 4 are arranged in parallel; so that the pantograph of the electric locomotive 3 can have a smooth transition.

[0048] The top of the fixed component 511 is connected to the portal frame 4, and the bottom of the fixed component 511 is connected to the conductive component 53. The fixed component 511 plays the role of fixing and supporting the fixed contact network 51. At the same time, the fixed component 511 is box-shaped, and its height can be adjusted according to the height of the moving contact network 52, so that the conductive component 53 of the fixed contact network 51, especially the contact network wire 531 and the conductive component 53 of the moving contact network 52, especially the contact network wire 531, are on the same horizontal plane.

[0049] At the same time, part of the fixed contact network 51 is parallel to the mobile contact network 52, so that the power supply of the electric locomotive 3 is switched from the fixed contact network 51 to the mobile contact network 52, or from the mobile contact network 52 to the fixed contact network 51. The pantograph of the electric locomotive 3 can contact the contact network lines 531 of the fixed contact network 51 and the mobile contact network 52 at the same time, completing uninterrupted power supply in the station.

[0050] Reference Figure 4 As shown, the conductive assembly 53 includes a contact wire 531, a plurality of contact wire fixing plates 532, a contact wire fixing frame 533 and a plurality of contact wire fixing pillars 534. The plurality of contact wire fixing plates 532 are symmetrically arranged, and the bottoms of the symmetrical contact wire fixing plates 532 are bent to clamp the contact wire 531 inwardly; the contact wire fixing plates 532 are connected to the contact wire fixing frame 533, and the contact wire fixing frame 533 is connected to the bottoms of the plurality of contact wire fixing pillars 534.

[0051] The conductive component 53 is the core component of the overhead contact network 5. The pantograph of the electric locomotive 3 is in direct contact with the overhead contact network 531 to obtain electricity. The overhead contact network 531 generally adopts silver copper wire with a cross-sectional area of ​​120mm. 2 or 150mm 2 The contact wire 531 is embedded in the contact wire fixing plate 532, and the contact wire fixing plate 532 is provided with multiple groups, and multiple parts of the contact wire 531. Each group of contact wire fixing plates 532 has two, which are symmetrically arranged. The bottoms of the two contact wire fixing plates 532 in the same group are bent toward opposite sides, and the end faces of the bottoms clamp the contact wire 531.

[0052] The top of the contact network cable fixing plate 532 is connected to the contact network cable fixing frame 533 , the top of the contact network cable fixing frame 533 is connected to the contact network cable fixing support 534 , and the top of the contact network cable fixing support 534 is connected to the fixing assembly 511 .

[0053] There are multiple contact network wire fixing pillars 534, one ends of two adjacent contact network wire fixing pillars 534 are in contact with each other, and multiple contact network wire fixing pillars 534 are arranged in a triangle between the contact network wire fixing frame 533 and the fixing component 511 to increase the stability of the conductive component 53.

[0054] The contact network line fixing support 534 is composed of a plurality of insulators and fixing parts connected alternately in sequence, which can not only play the role of fixing support, but also can insulate, increase the creepage distance and ensure safety.

[0055] Reference Figure 5 and Figure 6 As shown, the moving assembly 521 includes a moving fixed beam 5211, a driving device 5213 and a moving frame 5214. The top of the moving fixed beam 5211 is connected to the door frame 4; the bottom of the moving frame 5214 is connected to the conductive assembly 53; the driving device 5213 is installed on the moving fixed beam 5211 and connected to the moving frame 5214 to drive the moving frame 5214 to move, thereby driving the conductive assembly 53 to move along the track 2.

[0056] Continue to refer to Figure 5 and Figure 6 As shown, the mobile assembly 521 also includes two groups of pulley assemblies 5215. The two groups of pulley assemblies 5215 are respectively connected to the two ends of the mobile fixed beam 5211; each group of pulley assemblies 5215 includes two pulley assemblies 5215, and the two pulley assemblies 5215 are respectively connected to the two sides of the mobile fixed beam 5211 and are symmetrically arranged.

[0057] The moving frame 5214 also includes two sets of moving guide rail assemblies 52141. The two sets of moving guide rail assemblies 52141 are respectively arranged at both ends of the moving frame 5214; each set of moving guide rail assemblies 52141 includes two moving guide rail assemblies 52141, and the two moving guide rail assemblies 52141 are respectively connected to both sides of the moving frame 5214 and are symmetrically arranged; the multiple moving guide rail assemblies 52141 correspond to the multiple pulley assemblies 5215 one by one; the pulley assemblies 5215 support the corresponding moving guide rail assemblies 52141 to slide.

[0058] Since the moving frame 5214 will extend out of the moving fixed beam 5211 when moving along the track 2, in order to increase the stability of the device, the moving assembly 521 includes two sets of pulley assemblies 5215, and the moving frame 5214 includes two sets of moving guide rail assemblies 52141. The two sets of pulley assemblies 5215 are respectively arranged at both ends of the moving fixed beam 5211, and the two sets of moving guide rail assemblies 52141 are respectively arranged at both ends of the moving frame 5214. The pulley assemblies 5215 correspond to the moving guide rail assemblies 52141 one by one. When the moving frame 5214 is moving, the moving guide rail assemblies 52141 slide in the corresponding pulley assemblies 5215. The length of the moving guide rail assemblies 52141 is adapted to the maximum moving range of the moving frame 5214, that is, the moving guide rail assemblies 52141 will not be separated from the support of the corresponding pulley assemblies 5215.

[0059] Specifically, the driving device 5213 includes a driving plate 5212, a sprocket and a transmission chain. The driving plates 5212 include two, both of which are slidably connected to the movable fixed beam 5211, and the bottoms of the two driving plates 5212 are connected to the movable frame 5214; two sprockets are provided, which are respectively connected to the two ends of the movable fixed beam 5211; and at least one of the two sprockets is a driving wheel, which is externally connected to a motor for providing power; the transmission chain is sleeved on the two sprockets and is driven by the motor; the two ends of the transmission chain are respectively connected to the two driving plates 5212, thereby driving the two driving plates 5212 to move.

[0060] The driving plate 5212 is moved by the transmission chain. The two sprockets of the driving device 5213 are respectively arranged at the two ends of the movable fixed beam 5211, and at least one of the two sprockets is a driving wheel, that is, both can be driving wheels, or one can be a driving wheel and the other can be a driven wheel. When both sprockets are driving wheels, the two sprockets rotate synchronously; when one of the two sprockets is a driving wheel and the other is a driven wheel, the driving wheel drives the driven wheel to rotate through the transmission chain.

[0061] The transmission chain is sleeved outside the two sprockets, and the two ends of the transmission chain are respectively connected to the two driving plates 5212. When the two sprockets rotate clockwise, the transmission chain rotates clockwise synchronously, driving the two driving plates 5212 to move leftward, thereby driving the moving frame 5214 to move leftward, and further driving the conductive component 53 of the moving contact network 52 to move leftward. Similarly, when the two sprockets rotate counterclockwise, the transmission chain rotates counterclockwise synchronously, driving the two driving plates 5212 to move rightward, thereby driving the moving frame 5214 to move rightward, and further driving the conductive component 53 of the moving contact network 52 to move rightward.

[0062] Reference Figure 4 As shown, the fixing assembly 511 includes a contact network line heightening fixing frame 5111 and a lifting ring 5112. The bottom of the contact network line heightening fixing frame 5111 is connected to the top of the conductive assembly 53, and the top of the contact network line heightening fixing frame 5111 is connected to the portal frame 4; the lifting ring 5112 is arranged on the top of the contact network line heightening fixing frame 5111, and is used for the lifting device to connect the fixed contact network 51 when installing the fixed contact network 51.

[0063] The lifting ring 5112 is used to hook or fix the lifting ring 5112 with the lifting end of the lifting device when installing the fixed contact network 51, and lift the fixed contact network 51 to the portal frame 4 for installation.

[0064] This embodiment provides an application method of a low headroom coal loading station track electrification device. Please refer to the accompanying drawings in the specification. Figures 7 to 12 .

[0065] Reference Figure 8As shown, the mobile contact network 52 is extended: the mobile contact network 52 moves toward the coal loading station 1 to the extended position, and the green light of the signal light on the station entry side is on, allowing the electric locomotive 3 to enter the station.

[0066] The electric locomotive 3 pulling the cargo box 33 is about to enter the station, and the mobile contact network 52 runs to the extended position. After the movement is in place, the signal light on the station side lights up, allowing the electric locomotive 3 to enter the station.

[0067] Reference Fig. 9 As shown, the electric locomotive 3 enters the station: the rear pantograph 31 of the electric locomotive 3 smoothly transitions from the fixed contact network 51 on the station entry side to the movable contact network 52 on the station entry side, and runs toward the coal loading station 1 to the "replace pantograph" sign and stops.

[0068] When the electric locomotive 3 enters the station, it transitions from the fixed contact network 51 on the station entrance side to the mobile contact network 52 on the station entrance side. Since the fixed contact network 51 and the mobile contact network 52 are set at the same height, the electric locomotive 3 can transition smoothly and run in the station to the "Replace pantograph" sign, waiting for the pantograph to be changed.

[0069] Reference Fig.10 As shown, the electric locomotive 3 replaces the pantograph: the rear pantograph 31 of the electric locomotive 3 is lowered and separated from the moving contact network 52 on the station entrance side; the front pantograph 32 of the electric locomotive 3 is raised and contacts the moving contact network 52 on the station exit side.

[0070] The setting of the electric locomotive 3 satisfies that the distance between the rear pantograph 31 and the front pantograph 32 is greater than the distance between the ends of the two mobile contact networks 52 close to the coal loading station 1 when both mobile contact networks 52 are in the extended position. That is, when the electric locomotive 3 runs under the coal loading station 1 and both mobile contact networks 52 are in the extended position, if the rear pantograph 31 of the electric locomotive 3 is raised, it can contact the mobile contact network 52 on the station entry side, and if the front pantograph 32 of the electric locomotive 3 is raised, it can contact the mobile contact network 52 on the station exit side, thereby ensuring the continuity of power supply.

[0071] Reference Fig.11 As shown, the electric locomotive 3 leaves the station: the electric locomotive 3 runs in the direction away from the coal loading station 1, and the front pantograph 32 of the electric locomotive 3 smoothly transitions from the mobile contact network 52 on the exit side to the fixed contact network 51 on the exit side and the cargo box 33 pulled by the electric locomotive 3 is located below the unloading funnel, and the electric locomotive 3 stops.

[0072] The electric locomotive 3 pulls the cargo box 33 and moves to the cargo box 33, which is located below the unloading hopper and waits for unloading.

[0073] Reference Fig.12 As shown, the movable contact network 52 is retracted: the movable contact network 52 moves in a direction away from the coal charging station 1 to the retracted position.

[0074] The movable contact net 52 moves to the retracted position, and when it reaches the position, the feeding hopper falls down, and coal begins to be loaded into the cargo box 33. The movable contact net 52 and the feeding hopper have a mutual locking relationship: when the feeding hopper falls down, the movable contact net 52 is not allowed to extend; when the movable contact net 52 extends, the feeding hopper is not allowed to fall.

[0075] This application method realizes uninterrupted power supply to the electric locomotive 3 through the coordinated action of the two mobile contact networks 52, while leaving enough operating space for the coal loading station 1, thereby avoiding various disadvantages of the internal combustion engine-driven coal loading train.

[0076] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0077] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A track electrification device for a low headroom coal loading station, characterized in that: It comprises two portal frames (4) and two movable contact networks (52); The two portal frames (4) are respectively erected on the inlet side and the outlet side of the coal loading station (1); Two movable contact networks (52) are respectively mounted on the two portal frames (4), both along the direction of the track (2), and each movable contact network (52) comprises a conductive component (53) and a movable component (521); The conductive component (53) is connected to the moving component (521) and is capable of supplying power to the electric locomotive (3); The moving component (521) is connected to the door frame (4) and is capable of driving the conductive component (53) to move along the direction of the track (2); Also included are two fixed contact networks (51); The two fixed contact nets (51) are respectively mounted on the two portal frames (4), and both extend along the track (2) in a direction away from the coal loading station (1); Each of the fixed contact networks (51) comprises the conductive component (53) and a fixed component (511); The conductive component (53) is connected to the fixed component (511) and is capable of supplying power to the electric locomotive (3); The fixing assembly (511) is connected to the portal frame (4); The fixed contact network (51) and the movable contact network (52) are located on the same horizontal plane; The fixed contact network (51) and the movable contact network (52) arranged on the same portal frame (4) are arranged in parallel, so that the pantograph of the electric locomotive (3) can smoothly transition; The moving assembly (521) comprises a moving fixed crossbeam (5211), a driving device (5213) and a moving frame (5214); The top of the movable fixed crossbeam (5211) is connected to the portal frame (4); The bottom of the movable frame (5214) is connected to the conductive component (53); The driving device (5213) is installed on the movable fixed crossbeam (5211) and is connected to the movable frame (5214) to drive the movable frame (5214) to move, thereby driving the conductive component (53) to move along the direction of the track (2); The application method of the low headroom coal loading station track electrification device comprises the following steps: The movable contact network (52) extends: the movable contact network (52) moves toward the direction close to the coal loading station (1) to the extended position, and the signal light on the station entrance side turns green, allowing the electric locomotive (3) to enter the station; The electric locomotive (3) enters the station: the rear pantograph (31) of the electric locomotive (3) smoothly transitions from the fixed contact network (51) on the station entry side to the movable contact network (52) on the station entry side, and moves toward the coal loading station (1) and stops at a "replace pantograph" sign; The electric locomotive (3) replaces the pantograph: the rear pantograph (31) of the electric locomotive (3) is lowered and separated from the moving contact network (52) on the station entrance side; the front pantograph (32) of the electric locomotive (3) is raised and contacts the moving contact network (52) on the station exit side; The electric locomotive (3) leaves the station: the electric locomotive (3) runs in a direction away from the coal loading station (1), the front pantograph (32) of the electric locomotive (3) smoothly transitions from the mobile contact network (52) on the exit side to the fixed contact network (51) on the exit side, and the cargo box (33) pulled by the electric locomotive (3) is located below the unloading hopper, and the electric locomotive (3) stops; The movable contact network (52) retracts: the movable contact network (52) moves in a direction away from the coal loading station (1) to a retracted position.

2. The low headroom coal loading station track electrification device according to claim 1, characterized in that: The conductive component (53) comprises a contact wire (531), a plurality of contact wire fixing plates (532), a contact wire fixing frame (533), and a plurality of contact wire fixing pillars (534); A plurality of groups of the contact wire fixing plates (532) are symmetrically arranged, and the bottoms of the symmetrical contact wire fixing plates (532) are bent to clamp the contact wire (531) inwardly; The contact network wire fixing plate (532) is connected to the contact network wire fixing frame (533), and the contact network wire fixing frame (533) is connected to the bottoms of a plurality of contact network wire fixing pillars (534).

3. The low headroom coal loading station track electrification device according to claim 1, characterized in that: The moving assembly (521) further includes two sets of pulley assemblies (5215); The two groups of pulley assemblies (5215) are respectively connected to the two ends of the movable fixed beam (5211); each group of pulley assemblies (5215) includes two pulley assemblies (5215), and the two pulley assemblies (5215) are respectively connected to the two sides of the movable fixed beam (5211) and are symmetrically arranged.

4. The low headroom coal loading station track electrification device according to claim 3, characterized in that: The mobile frame (5214) further comprises two sets of mobile guide rail assemblies (52141); Two groups of movable guide rail assemblies (52141) are respectively arranged at two ends of the movable frame (5214); Each group of the movable guide rail assemblies (52141) comprises two movable guide rail assemblies (52141), and the two movable guide rail assemblies (52141) are respectively connected to two sides of the movable frame (5214) and are symmetrically arranged; The plurality of movable guide rail assemblies (52141) correspond one to one to the plurality of pulley assemblies (5215); the pulley assemblies (5215) support the corresponding movable guide rail assemblies (52141) to slide.

5. The low headroom coal loading station track electrification device according to claim 1, characterized in that: The driving device (5213) comprises a driving plate (5214), a sprocket and a transmission chain; The driving plates (5212) include two, both of which are slidably connected to the movable fixed beam (5211), and the bottoms of the two driving plates (5212) are both connected to the movable frame (5214); Two sprocket wheels are provided, respectively connected to the two ends of the movable fixed crossbeam (5211); and at least one of the two sprocket wheels is a driving wheel, externally connected to a motor, for providing power; The transmission chain is sleeved on the two sprockets and driven by the motor; the two ends of the transmission chain are respectively connected to the two drive plates (5212), thereby driving the two drive plates (5212) to move.

6. The low headroom coal loading station track electrification device according to claim 1, characterized in that: The fixing assembly (511) comprises a contact network line heightening fixing frame (5111) and a lifting hanging ring (5112); The bottom of the overhead contact wire heightening fixing frame (5111) is connected to the top of the conductive component (53), and the top of the overhead contact wire heightening fixing frame (5111) is connected to the portal frame (4); The lifting ring (5112) is arranged on the top of the contact network wire heightening fixing frame (5111) and is used for allowing a lifting device to connect to the fixed contact network (51) when installing the fixed contact network (51).

Images