A rack-rail tractor, operating system and method for molten iron intermodal transport

Abstract

The present invention provides a rack-and-rail tractor for molten iron intermodal transport, an operating system, and a method, relating to the technical field of molten iron transportation. The rack-and-rail tractor for molten iron intermodal transport includes a vehicle body, a wheelset, at least one drive assembly, and a transmission rack. The wheelset is mounted on the vehicle body, the wheelset is suitable for running on railway tracks, the transmission rack is suitable for being laid between railway tracks, the drive assembly is mounted on the vehicle body, the drive assembly includes a reduction motor and a pin wheel, the reduction motor is drive-connected to the pin wheel, the pin wheel is suitable for engaging with the transmission rack, and the reduction motor is suitable for driving the pin wheel to move along the length direction of the transmission rack. The rack-and-rail tractor for molten iron intermodal transport of the present invention is characterized by the installation of a drive assembly on the vehicle body, the pin wheel of the drive assembly engaging with the transmission rack laid on the railway track, thereby driving the vehicle body to move. The rack-and-rail tractor for molten iron intermodal transport has strong versatility and a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of molten iron transportation, and in particular to a molten iron combined transportation rack-rail tractor, an operating system and a method. Background Art

[0002] The new rail-water transport model replaces road connections with waterways and long-distance road transport with rail-water transport, significantly reducing road freight turnover and effectively alleviating the traffic safety hazards, road damage, exhaust gas pollution, dust pollution, and noise pollution caused by large-scale road transport. Shunting locomotives pull railway trains to the docks, and rack-type tractors drive the trains for loading and unloading operations on the dock trestle. Existing rack-type tractors cannot be used on conventional railways because their running tracks are incompatible with conventional railways, resulting in poor operational versatility. Summary of the Invention

[0003] The present invention aims to provide a rack rail tractor for iron-water intermodal transport, so as to solve the technical problem of poor operational versatility of existing rack rail tractors.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A rack-rail tractor for iron-water intermodal transport comprises a vehicle body, a wheelset, at least one drive assembly and a transmission rack, wherein the wheelset is mounted on the vehicle body and is suitable for running on the railway track, and the transmission rack is suitable for being laid between the railway tracks, and the drive assembly is mounted on the vehicle body and comprises a reduction motor and a pin wheel, wherein the reduction motor is drivingly connected to the pin wheel, the pin wheel is suitable for engaging with the transmission rack, and the reduction motor is suitable for driving the pin wheel to move along the length direction of the transmission rack.

[0006] The rack-and-rail tractor for iron-water intermodal transport described in the present invention has a vehicle body that is meshed with a transmission rack through a drive assembly and is driven by the transmission rack, which is arranged between the railway tracks to drive the wheel pair to move on the railway tracks; specifically, the reduction motor drives the pin wheel to rotate, and the pin wheel moves along the length direction of the transmission rack to drive the vehicle body to move forward. The rack-and-rail tractor for iron-water intermodal transport of the present application can be moved on the railway tracks, has strong versatility, and has a wide range of applications.

[0007] Optionally, the iron-water intermodal rack-rail tractor further comprises a transmission mounting beam, wherein the transmission mounting beam is suitable for being mounted on the vehicle body, and the drive assembly is connected to the vehicle body via the transmission mounting beam.

[0008] Optionally, the drive assembly also includes an intermediate gear, an intermediate gear shaft, a pin wheel shaft, a first bearing seat and a second bearing seat. The reduction motor is suitable for being connected to the pin wheel drive through the intermediate gear. The intermediate gear shaft passes through the intermediate gear and is connected to the transmission mounting beam through the first bearing seat. The pin wheel shaft passes through the pin wheel and is connected to the transmission mounting beam through the second bearing seat.

[0009] Optionally, the drive assembly further includes an elastic torque arm, one end of which is fixedly connected to the housing of the reduction motor, and the other end of which is hinged to the transmission mounting beam.

[0010] Optionally, the iron-water combined transport rack-rail tractor further comprises a positioning mechanism, wherein the positioning mechanism is adapted to be mounted on the vehicle body, and the positioning mechanism is adapted to monitor the position of the vehicle body on the railway track;

[0011] The positioning mechanism includes a switch bracket, a magnetic proximity switch and a correction magnet. The magnetic proximity switch is suitable for being connected to the vehicle body through the switch bracket. The correction magnet is located below the magnetic proximity switch. Multiple correction magnets are suitable for being arranged at intervals on the road surface on both sides of the transmission rack. The magnetic proximity switch is suitable for sensing the correction magnets.

[0012] Optionally, the iron-water intermodal rack-rail tractor further comprises a limiting beam, wherein the limiting beam is suitable for being installed at both ends of the vehicle body along the length direction, and the driving assembly is suitable for being located between the two limiting beams.

[0013] Optionally, it further includes anchors, which are suitable for being installed on both sides of the vehicle body in the width direction. When the vehicle body is parked, the vehicle body is anchored to the road surface through the anchors.

[0014] Optionally, the iron-water intermodal rack-rail tractor further comprises a lubrication system, wherein the lubrication system is mounted on the vehicle body and is suitable for supplying oil to the drive assembly for lubrication thereof.

[0015] Another object of the present invention is to provide an iron-water intermodal rack-rail tractor operating system, comprising a shunting locomotive, a railway train, a quay crane, and the iron-water intermodal rack-rail tractor, wherein the railway train is used to transport goods, the shunting locomotive is suitable for driving the railway train to move between the railway track and the docking parking space of the port, the iron-water intermodal rack-rail tractor is suitable for driving the railway train to move between the docking parking space and the loading and unloading operation area of ​​the port, and the quay crane is suitable for loading and unloading goods on the railway train.

[0016] Another object of the present invention is to provide a method for operating a rack-rail tractor for molten iron intermodal transport, which employs the aforementioned rack-rail tractor for molten iron intermodal transport, comprising the following steps:

[0017] S1: The iron-water intermodal rack-rail tractor of the iron-water intermodal rack-rail tractor operating system drives from the docking parking space to a safe area. After the iron-water intermodal rack-rail tractor arrives at the safe area, the shunting locomotive of the iron-water intermodal rack-rail tractor operating system pushes the railway train to the port loading and unloading operation area.

[0018] S2: After the shunting locomotive reaches the docking parking space, the shunting locomotive is uncoupled from the railway train and exits the port loading and unloading operation area;

[0019] S3: the iron-water intermodal rack-rail tractor enters the docking parking space and connects with the railway train, and the quay crane of the iron-water intermodal rack-rail tractor operation system moves to the container loading and unloading operation space;

[0020] S4: the rail-water combined transport rack-rail tractor pulls or pushes the railway train to the container loading and unloading operation position, and the quay crane loads and unloads containers to the railway train;

[0021] S5: After the loading and unloading operation of the quay crane is completed, the iron-water intermodal rack-rail tractor pulls or pushes the railway train to the docking parking space, uncouples from the railway train, and moves to the safe area;

[0022] S6: The shunting locomotive is hooked to the railway train, and the shunting locomotive pulls the railway train back, and the iron-water combined transport rack-rail tractor returns from the safe area to the shuttle parking space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a rack-rail tractor for iron-water combined transport according to an embodiment of the present invention from a first perspective;

[0024] Figure 2 This is a schematic structural diagram of a rack-rail tractor for iron-water combined transport according to an embodiment of the present invention from a second perspective;

[0025] Figure 3 This is a schematic structural diagram of a rack-rail tractor for iron-water intermodal transport according to an embodiment of the present invention from a third perspective;

[0026] Figure 4 Schematic diagram of the structure of the driving assembly according to an embodiment of the present invention;

[0027] Figure 5 is a cross-sectional view of a drive assembly according to an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the installation structure of the positioning mechanism according to an embodiment of the present invention;

[0029] Figure 7Schematic diagram of the state corresponding to S11 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the state corresponding to S121 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0031] Figure 9 Schematic diagram of the state corresponding to S122 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0032] Figure 10 Schematic diagram of the state corresponding to S123 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0033] Figure 11 Schematic diagram of the state corresponding to S13 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0034] Figure 12 Schematic diagram of the state corresponding to S141 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0035] Figure 13 Schematic diagram of the state corresponding to S142 in the docking and loading and unloading process of the iron-water intermodal rack-rail tractor and the shunting locomotive according to an embodiment of the present invention;

[0036] Figure 14 The present invention is a flowchart of a method for operating a rack-rail tractor for iron-water intermodal transport according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 1. Car body; 2. Drive assembly; 201. Reducer motor; 202. Intermediate gear; 203. Pin wheel; 204. Intermediate gear shaft; 205. Pin wheel shaft; 206. First bearing seat; 207. Second bearing seat; 208. Elastic torque arm; 3. Transmission rack; 4. Transmission mounting beam; 5. Wheel set; 6. Positioning mechanism; 601. Switch bracket; 602. Magnetic proximity switch; 603. Correction magnet; 7. Limit beam; 8. Anchor; 9. Railway track; 10. Lubrication system; 11. Coupler; 12. Wrecker; 13. Brake; 14. Driver's cab; 15. Carport; 16. Pneumatic control system; 17. Cable drum; 18. Shunting locomotive; 19. Railway train; 20. Signal light; 21. Rail-water combined transport rack-rail tractor; 22. Shuttle parking space; 23. Safety area. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] In the description of the present invention, it should be noted that the terminology in each embodiment, such as "upper", "lower", "front", "back" and other words indicating direction, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated in accordance with the specific directions and defined operations and methods and structures in the specification. Such directional nouns do not constitute a limitation on the present invention.

[0041] A coordinate system XYZ is set in this article, where the positive direction of the X axis represents the left direction, the negative direction of the X axis represents the right direction, the positive direction of the Y axis represents the front direction, the negative direction of the Y axis represents the back direction, the positive direction of the Z axis represents the top direction, and the negative direction of the Z axis represents the bottom direction.

[0042] like Figure 1-5 As shown, an iron-water intermodal rack tractor 21 according to an embodiment of the present invention includes a car body 1, a wheelset 5, at least one drive assembly 2 and a transmission rack 3, wherein the wheelset 5 is mounted on the car body 1, and the wheelset 5 is suitable for running on the railway track 9, and the transmission rack 3 is suitable for being laid between the railway tracks 9, and the drive assembly 2 is mounted on the car body 1, and the drive assembly 2 includes a reduction motor 201 and a pin wheel 203, wherein the reduction motor 201 is driven and connected to the pin wheel 203, and the pin wheel 203 is suitable for engaging with the transmission rack 3, and the reduction motor 201 is suitable for driving the pin wheel 203 to move along the length direction of the transmission rack 3.

[0043] In this embodiment, if Figure 1-3 As shown, a driver's cab 14 is provided at the upper front of the vehicle body 1, and a carport 15 is provided behind the driver's cab 14. A coupler 11, a wrecker 12, and a brake 13 are provided below the vehicle body 1. A pneumatic control system 16 is provided at the rear of the vehicle body 1, and a cable drum 17 is provided on the right side of the vehicle body 1. The driver's cab 14, carport 15, coupler 11, wrecker 12, brake 13, pneumatic control system 16, and cable drum 17 can be welded or bolted to the vehicle body 1. The coupler 11 serves as a connecting component for the rail vehicle, providing cushioning and energy absorption during operation, especially during collisions, to maximize vehicle safety and passenger safety. The wrecker 12 is used to clear obstacles on the road surface. The brake 13 is used to control the start and stop of the iron-water intermodal rack-rail tractor. The pneumatic control system 16 controls the air supply for the entire vehicle. The vehicle body 1 draws power from the port via the cable drum 17.

[0044] The railway track 9 is arranged along the direction indicated by the Y axis, and a transmission rack 3 is laid along the length direction of the railway track 9. The installation height of the transmission rack 3 can be determined according to the meshing transmission requirements. The drive assembly 2 of the iron-water intermodal rack tractor is meshed with the transmission rack 3 along the direction indicated by the Y axis. There can be one, two or more drive assemblies 2. For example, four drive assemblies 2 are provided. Figure 4-5 As shown, the drive assembly 2 includes a reduction motor 201 and a pin wheel 203. The output end of the reduction motor 201 drives the pin wheel 203 to rotate. The pin wheel 203 is suitable for engaging with the transmission rack 3. The reduction motor 201 drives the pin wheel 203 to move on the transmission rack 3 to realize the movement of the iron-water intermodal rack-rail tractor as a whole on the railway track 9. It has strong versatility and a wide range of applications, and solves the technical problem that the existing iron-water intermodal rack-rail tractor cannot run on the existing track and needs to lay a dedicated running track and has poor versatility.

[0045] This embodiment adopts pin-tooth transmission, with the pin wheel 203 as the active part and the rack 3 (harder than the pin wheel shaft 205) fixed on the railway track 9. In the later stage, only the pin wheel shaft and pin sleeve on the pin wheel 203 need to be replaced; if a rack and pinion transmission is adopted, the gear is used as the active part and the rack is fixed. If the gear teeth are damaged, it is necessary to process the gear as a whole or replace the high-precision movable gear block separately. Pin-tooth transmission has more advantages.

[0046] Two wheelsets 5 can be provided, and one wheelset 5 is provided at the front and rear ends of the bottom of the vehicle body 1 respectively. The wheelset 5 is located on the outside of the pin wheel 203. When the iron-water intermodal rack-rail tractor is running on the existing ordinary track, the drive assembly 2 is retracted and the running is achieved through the wheelset 5; when the iron-water intermodal rack-rail tractor is transporting, positioning, loading and unloading on the wharf trestle, in order to prevent slipping by braking only with the wheel brake shoes, the vehicle body 1 is driven to run by the meshing transmission of the drive assembly 2 and the transmission rack 3, and at this time the wheelset 5 is driven as a slave.

[0047] Alternatively, as Figure 4 As shown, the iron-water intermodal rack-rail tractor further includes a transmission mounting beam 4 , which is suitable for being mounted on the vehicle body 1 , and the drive assembly 2 is connected to the vehicle body 1 via the transmission mounting beam 4 .

[0048] In this embodiment, the transmission mounting beam 4 is arranged along the Y-axis, and the drive assemblies 2 are spaced apart on the transmission mounting beam 4 so as to be mounted to the vehicle body 1 via the transmission mounting beam 4. The multiple drive assemblies 2 drive the vehicle body 1, dispersing the power and improving the operational stability of the vehicle body 1. When the iron-water intermodal rack-rail tractor travels on existing conventional tracks, the transmission mounting beam 4 is raised, and travel is achieved via the wheelsets 5.

[0049] Alternatively, as Figure 5 As shown, the drive assembly 2 also includes an intermediate gear 202, an intermediate gear shaft 204, a pin wheel shaft 205, a first bearing seat 206 and a second bearing seat 207. The reduction motor 201 is suitable for being driven and connected to the pin wheel 203 through the intermediate gear 202. The intermediate gear shaft 204 passes through the intermediate gear 202 and is connected to the transmission mounting beam 4 through the first bearing seat 206. The pin wheel shaft 205 passes through the pin wheel 203 and is connected to the transmission mounting beam 4 through the second bearing seat 207.

[0050] In this embodiment, the output end of the reduction motor 201 drives the intermediate gear 202 to rotate, which meshes with the pinwheel 203. The intermediate gear shaft 204 and the pinwheel shaft 205 are relatively parallel and arranged along the X-axis. The intermediate gear 202 rotates around the intermediate gear shaft 204, and the pinwheel 203 rotates around the pinwheel shaft 205. The intermediate gear shaft 204 is mounted on the transmission mounting beam 4 via a first bearing seat 206, and the pinwheel shaft 205 is mounted on the transmission mounting beam 4 via a second bearing seat 207, thereby securing the intermediate gear 202 and the pinwheel 203 to the transmission mounting beam 4.

[0051] A rotary encoder can be installed on the pin wheel 203, and the rotary encoder is connected to the counter input port of the PLC. The travel distance of the iron-water intermodal rack-rail tractor can be calculated through the meshing diameter of the pin wheel 203, and the specific position and current travel speed of the iron-water intermodal rack-rail tractor on the railway track 9 can be obtained.

[0052] Alternatively, as Figure 4 As shown, the driving assembly 2 further includes an elastic torque arm 208 , one end of the elastic torque arm 208 is fixedly connected to the housing of the reduction motor 201 , and the other end of the elastic torque arm 208 is hinged to the transmission mounting beam 4 .

[0053] In this embodiment, when there are multiple drive components 2, each reduction motor 201 is installed on the transmission mounting beam 4 through an elastic torque arm 208. The elastic installation method of the reduction motor 201 can improve the synchronization of the drive between each pin wheel 203 and ensure the stability of the operation of the vehicle body 1.

[0054] Alternatively, as Figure 6 As shown, the iron-water combined transport rack-rail tractor further includes a positioning mechanism 6, which is suitable for being mounted on the vehicle body 1 and is suitable for monitoring the position of the vehicle body 1 on the railway track 9;

[0055] The positioning mechanism 6 includes a switch bracket 601, a magnetic proximity switch 602 and a correction magnet 603. The magnetic proximity switch 602 is suitable for being connected to the vehicle body 1 through the switch bracket 601. The correction magnet 603 is located below the magnetic proximity switch 602. Multiple correction magnets 603 are suitable for being arranged at intervals on the road surface on both sides of the transmission rack 3. The magnetic proximity switch 602 is suitable for sensing the correction magnet 603.

[0056] In this embodiment, a wrecker 12 can be respectively provided on the left and right sides of the vehicle body 1, and the switch bracket 601 is installed on the wrecker 12. The switch bracket 601 can be L-shaped, and a magnetic proximity switch 602 is installed on the horizontal part of the switch bracket 601. The magnetic proximity switch 602 faces the direction indicated by the negative direction of the Z axis. A correction magnet 603 is provided on the road surface below the magnetic proximity switch 602. Generally speaking, the correction magnet 603 is located on the road surface on both sides of the transmission rack 3, and the correction magnet 603 is arranged at intervals along the direction indicated by the Y axis. When driving, the vehicle's travel distance can be corrected through the induction between the magnetic proximity switch 602 and the correction magnet 603, eliminating the cumulative error of the rotary encoder, so that the iron-water intermodal rack tractor can be accurately parked in the parking space.

[0057] Alternatively, as Figure 1 As shown, the iron-water combined transport rack-rail tractor further includes a limiting beam 7 and an anchor 8. The limiting beam 7 is suitable for being installed at both ends of the vehicle body 1 along the length direction, and the driving assembly 2 is suitable for being located between the two limiting beams 7.

[0058] The anchors 8 are suitable for being installed on both sides of the vehicle body 1 in the width direction. When the vehicle body is parked, the vehicle body 1 is anchored to the road surface through the anchors 8 .

[0059] In this embodiment, the limiting beam 7 is provided with a C-shaped groove downward, and the transmission rack 3 is suitable for passing through the C-shaped groove. When the vehicle body 1 reaches the end of the road, the limiting beam 7 is in rigid contact with the end of the road, and the driving component 2 stops moving to prevent the vehicle body 1 from running out of control and rushing out of the track, thereby preliminarily cushioning the collision damage to the vehicle body 1 and preventing the vehicle from running out of control and rushing out of the track. In order to improve the limiting effect, the limiting beam 7 can be set at the front and rear end positions of the bottom of the vehicle body 1.

[0060] In order to make the parking of the vehicle body 1 more stable, anchors 8 may be provided on the left and right sides of the vehicle body 1 respectively. When the vehicle body 1 stops, the vehicle body 1 is anchored and locked to the road surface through the anchors 8 .

[0061] Alternatively, as Figure 2As shown, the iron-water intermodal rack-rail tractor further includes a lubrication system 10 , which is installed on the vehicle body 1 , and is suitable for supplying oil to the drive assembly 2 for lubrication thereof.

[0062] In this embodiment, the lubrication system 10 is mainly used to supply oil and lubricate each bearing in the drive assembly 2. The lubrication system 10 includes multiple grease delivery pipelines, which supply oil to each lubrication point respectively. The grease delivery pipelines are provided with progressive distributors, grease pumps, and filters. They can also monitor oil pressure, liquid level, temperature, etc. At the same time, the lubrication system 10 also has a fault alarm function, which realizes timely grease lubrication and real-time monitoring of the lubrication status of the vehicle during travel. It is safe to use, easy to control, and extends the service life of the vehicle.

[0063] Another embodiment of the present invention provides an iron-water intermodal rack-rail tractor operating system, comprising a shunting locomotive 18, a railway train 19, a quay crane, and the iron-water intermodal rack-rail tractor 21. The railway train 19 is used to transport goods. The shunting locomotive 18 is suitable for driving the railway train 19 to move between the railway track 9 and the docking parking space 22 of the port. The iron-water intermodal rack-rail tractor is suitable for driving the railway train 19 to move between the docking parking space 22 and the loading and unloading operation area of ​​the port. The quay crane is suitable for loading and unloading goods from the railway train 19.

[0064] In this embodiment, the railway train 19 is towed to the port operation area by connecting the iron-water intermodal rack-rail tractor 21 with the shunting locomotive 18, and the loading and unloading operations of the container by the quay crane can be realized by connecting the iron-water intermodal rack-rail tractor 21 with the quay crane. The whole process can adopt a reasonable scheduling method to improve the efficiency of port loading and unloading containers, reduce port operating costs, and improve competitiveness.

[0065] Another embodiment of the present invention provides an operating method for a rack-rail tractor for iron-water intermodal transport, which uses the aforementioned rack-rail tractor operating system, including a docking and scheduling process between the rack-rail tractor 21 for iron-water intermodal transport and the shunting locomotive 18, and a docking and scheduling process between the rack-rail tractor 21 for iron-water intermodal transport and the quay crane.

[0066] The connection and dispatching process between the iron-water intermodal rack-rail traction vehicle and the shunting locomotive 18 includes the following steps:

[0067] S11: When it is detected that the shunting locomotive 18 of the iron-water intermodal rack-rail tractor system is picking up and delivering the railway train 19 and driving into the port loading and unloading operation area, the iron-water intermodal rack-rail tractor system moves from the docking parking space 22 to the safe area 23. Figure 7 shown.

[0068] In this step, the rail-water intermodal rack-rail tractor initially stops at the docking parking space 22, and the control signal light 20 turns blue to prohibit the shunting locomotive 18 from entering. When the shunting locomotive 18 picks up the railway train 19 and departs, the rail-water intermodal rack-rail tractor moves to the safety area 23 until it reaches the safety area 23.

[0069] S12: When it is detected that the iron-water intermodal rack-rail tractor arrives at the safety area 23, the shunting locomotive 18 drives to the connecting parking space 22, uncouples from the railway train 19 and returns, and the iron-water intermodal rack-rail tractor enters the connecting parking space 22 and connects with the railway train 19.

[0070] Exemplarily, the step 12 includes:

[0071] S121: When the iron-water combined transport rack-rail tractor reaches the safety area 23, the signal light 20 is controlled to light up white. Figure 8 As shown;

[0072] S122: The shunting locomotive 18 pushes the railway train 19 to the connecting parking space 22 and stops. Figure 9 As shown;

[0073] S123: After the shunting locomotive 18 is uncoupled from the railway train 19, it returns to standby. The iron-water intermodal rack-type tractor goes to the docking parking space 22 and connects with the railway train 19. The iron-water intermodal rack-type tractor pulls or pushes the railway train 19 to the port operation area for loading and unloading. At this time, the signal light 20 turns blue, prohibiting the shunting locomotive 18 from entering. Figure 10 shown.

[0074] S13: When the loading and unloading operation is detected to be completed, the iron-water intermodal rack-rail tractor delivers the railway train 19 to the docking parking space 22 and unhooks from it, and the iron-water intermodal rack-rail tractor moves to the safe area 23. Figure 11 shown.

[0075] In this step, after loading and unloading is completed, the iron-water combined transport rack-rail tractor delivers the railway train 19 to the docking parking space 22 and then returns to the safe area 23. At this time, the control signal light 20 lights up white and the shunting locomotive 18 can enter the port.

[0076] S14: The shunting locomotive 18 drives toward the connecting parking space 22 and hooks with the railway train 19 , the shunting locomotive 18 pulls the railway train 19 back, and the iron-water combined transport rack-rail tractor returns from the safety area 23 to the connecting parking space 22 .

[0077] S141: The shunting locomotive 18 enters the connecting parking space 22 and hooks up with the railway train 19. The shunting locomotive 18 pulls the railway train 19 back until the shunting locomotive 18 and all railway trains 19 leave the connecting parking space 22. Figure 12 shown.

[0078] S142: The iron-water intermodal rack-rail tractor returns from the safety area 23 to the docking parking space 22 to clear the safety area 23 and wait for the next operation. At this time, the control signal light 20 lights up blue; or, under the premise of ensuring that the trestle site has safe operating conditions, the iron-water intermodal rack-rail tractor can also directly wait for the next operation in the safety area 23. Note: During the entire loading and unloading operation, the railway train 19 cannot enter the safety area 23. Figure 13 shown.

[0079] The connection and dispatching process between the iron-water intermodal rack-rail tractor and the quay crane includes the following steps: Figure 14 As shown:

[0080] S21: the iron-water combined transport rack-rail tractor is connected to the railway train 19 at the docking parking space 22 (beacon A shown in the figure);

[0081] S22: Confirm the specific operating quay crane (there are multiple quay cranes on the dock), and move the operating quay crane to the container loading and unloading operation position to prepare for loading / unloading containers.

[0082] S23: The target connection position between the iron-water intermodal rack-rail tractor and the quay crane is calculated according to the specific position of the designated operation quay crane. The iron-water intermodal rack-rail tractor moves to the target connection position, and the quay crane prepares for loading and unloading operations.

[0083] S24: The quay crane performs sequential loading and unloading according to the container loading and unloading sequence list. After completing each container loading and unloading task, it waits for the next container loading and unloading instruction; it determines whether the assembly and unloading of the entire railway train 19 is completed. If the loading and unloading of the entire train is not completed, the position of the next loading and unloading container is calculated. When the iron-water intermodal rack-type tractor drives the railway train 19 to move into position, the quay crane continues the loading and unloading operation of the next container; if the loading and unloading of the entire train is completed, the iron-water intermodal rack-type tractor is controlled to push the railway train 19 to the docking parking space 22.

[0084] S25: The rail-water intermodal rack-type tractor disconnects from train 19 and moves to safety zone 23. Waiting for shunting locomotive 18 to pull the entire train 19 off the port trestle, the rail-water intermodal rack-type tractor returns from safety zone 23 to its docking parking space 22 with train 19, awaiting loading and unloading operations for the next train. If subsequent loading and unloading operations for train 19 are required, the rail-water intermodal rack-type tractor may remain on standby in safety zone 23, awaiting the next operation, provided that safe operating conditions are maintained at the trestle site.

[0085] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A rack-rail tractor for molten iron intermodal transport, characterized in that: The invention comprises a vehicle body (1), a wheelset (5), at least one driving assembly (2) and a transmission rack (3), wherein the wheelset (5) is mounted on the vehicle body (1), the wheelset (5) is suitable for running on railway tracks (9), the transmission rack (3) is suitable for being laid between the railway tracks (9), the driving assembly (2) is mounted on the vehicle body (1), the driving assembly (2) comprises a reduction motor (201) and a pin wheel (203), the reduction motor (201) is drivingly connected to the pin wheel (203), the pin wheel (203) is suitable for meshing with the transmission rack (3), and the reduction motor (201) is suitable for driving the pin wheel (203) to move along the length direction of the transmission rack (3); and further comprises a transmission mounting beam (4), the transmission mounting beam (4 ) is suitable for being installed on the vehicle body (1), the driving assembly (2) is connected to the vehicle body (1) through the transmission mounting beam (4), the transmission mounting beam (4) can be raised and lowered, and the transmission mounting beam (4) is used to make the pin wheel (203) engage with the transmission rack (3) when descending, and the transmission mounting beam (4) is used to make the pin wheel (203) disengage from the transmission rack (3) when ascending; the driving assembly (2) is provided with a plurality of intervals along the extension direction of the transmission mounting beam (4), and the driving assembly (2) further includes an elastic torsion arm (208), one end of the elastic torsion arm (208) is fixedly connected to the housing of the reduction motor (201), and the other end of the elastic torsion arm (208) is hinged to the transmission mounting beam (4).

2. The iron-water combined transport rack-rail tractor according to claim 1, characterized in that: The driving assembly (2) further comprises an intermediate gear (202), an intermediate gear shaft (204), a pin wheel shaft (205), a first bearing seat (206) and a second bearing seat (207); the reduction motor (201) is adapted to be driven and connected to the pin wheel (203) via the intermediate gear (202); the intermediate gear shaft (204) passes through the intermediate gear (202) and is connected to the transmission mounting beam (4) via the first bearing seat (206); the pin wheel shaft (205) passes through the pin wheel (203) and is connected to the transmission mounting beam (4) via the second bearing seat (207).

3. The iron-water intermodal rack-rail tractor according to claim 1, characterized in that: It also includes a positioning mechanism (6), which is suitable for being mounted on the vehicle body (1), and the positioning mechanism (6) is suitable for monitoring the position of the vehicle body (1) on the railway track (9); The positioning mechanism (6) comprises a switch bracket (601), a magnetic proximity switch (602) and a correction magnet (603), wherein the magnetic proximity switch (602) is adapted to be connected to the vehicle body (1) via the switch bracket (601), the correction magnet (603) is located below the magnetic proximity switch (602), a plurality of the correction magnets (603) are adapted to be spaced apart and arranged on the road surface on both sides of the transmission rack (3), and the magnetic proximity switch (602) is adapted to sense the correction magnets (603).

4. The iron-water combined transport rack-rail tractor according to claim 1, characterized in that: It also includes a limiting beam (7), which is suitable for being installed at both ends of the vehicle body (1) along the length direction, and the driving assembly (2) is suitable for being located between the two limiting beams (7).

5. The iron-water combined transport rack-rail tractor according to claim 1, characterized in that: It also includes anchors (8), which are suitable for being installed on both sides of the vehicle body (1) in the width direction. When the vehicle body (1) is parked, the vehicle body (1) is anchored to the road surface via the anchors (8).

6. The iron-water combined transport rack-rail tractor according to claim 1, characterized in that: It also includes a lubrication system (10), which is installed on the vehicle body (1) and is suitable for supplying oil to the drive assembly (2) to lubricate it.

7. A molten iron intermodal rack-rail traction vehicle operation system, characterized in that: The invention comprises a shunting locomotive (18), a railway train (19), a quay crane, and a rack-type rail tractor (21) for iron-water intermodal transport as described in any one of claims 1 to 6, wherein the railway train (19) is used for transporting goods, the shunting locomotive (18) is suitable for driving the railway train (19) to move between the railway track (9) and the docking parking space of the port, the rack-type rail tractor (21) is suitable for driving the railway train (19) to move between the docking parking space and the loading and unloading operation area of ​​the port, and the quay crane is suitable for loading and unloading goods from the railway train (19).

8. A method for operating a rack-rail tractor for molten iron intermodal transport, characterized in that: The iron-water intermodal rack-rail tractor operating system according to claim 7 comprises: S1: The iron-water intermodal cogwheel tractor (21) of the iron-water intermodal cogwheel tractor operating system travels from the docking parking space (22) to the safety area (23). After the iron-water intermodal cogwheel tractor (21) arrives at the safety area (23), the shunting locomotive (18) of the iron-water intermodal cogwheel tractor operating system pushes the railway train (19) to the port loading and unloading operation area; S2: After the shunting locomotive (18) reaches the docking parking space (22), the shunting locomotive (18) uncouples from the railway train (19) and exits the port loading and unloading operation area; S3: the iron-water intermodal rack-rail tractor (21) enters the docking parking space (22) and connects with the railway train (19), and the quay crane of the iron-water intermodal rack-rail tractor operation system moves to the container loading and unloading operation space; S4: the iron-water intermodal rack-rail tractor (21) tows or pushes the railway train (19) to the container loading and unloading operation position, and the quay crane loads and unloads containers to the railway train (19); S5: After the loading and unloading operation of the quay crane is completed, the iron-water intermodal rack-rail tractor (21) tows or pushes the railway train (19) to the docking parking space (22), unhooks from the railway train (19) and moves to the safety area (23); S6: The shunting locomotive (18) is hooked to the railway train (19), the shunting locomotive (18) pulls the railway train (19) back, and the iron-water combined transport rack rail tractor (21) returns from the safety area (23) to the connecting parking space (22).

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