Transfer Vehicle System at the Front of the Rail-Water Multimodal Terminal

Abstract

The present invention provides a turntable with built-in car pulling power and a car turning system at the front of an iron-water combined transport terminal. A car turning track is arranged on the turntable along its diameter. A car pulling mechanism is arranged on the turntable. The car pulling mechanism includes a power system and a robotic arm connected to the power system. The robotic arm is arranged along the car turning track and moves telescopically along the car turning track under the drive of the power system. A coupler connecting device is arranged at one end of the robotic arm away from the power system. The present invention can achieve automatic car pulling, is convenient for car turning, and does not require additional space. The turntable with built-in car pulling power combines the functions of turning and car pulling. When applied to the front of an iron-water combined transport terminal, it can not only save the land for railway curves but also save the land for car pullers on the trestle. It is an excellent and convenient facility used in ports.

Description

Technical Field

[0001] The present invention belongs to the technical field of combined rail and water transportation, and particularly relates to a vehicle transfer system at the front of a combined rail and water transportation terminal. Background Art

[0002] To achieve a rapid conversion of the transportation modes of goods between rail and water, and reduce the intermediate conversion links of goods, building a railway loading and unloading line on the pier front trestle, directly loading the goods unloaded from the ship onto railway vehicles or directly loading the goods unloaded from railway vehicles onto the ship, to achieve the direct loading and unloading mode between ships and vehicles, is the most environmentally friendly and economical transportation form for realizing the conversion of the transportation mode of goods between rail and water.

[0003] When building the railway to the front of the pier trestle and realizing the direct loading and unloading between combined rail and water transportation ships and vehicles, the railway vehicle runs from the land track to the track at the front of the pier to load and unload goods. The connection between the railway land track and the track on the pier front trestle adopts the traditional connection method, which is a curve connection. Since the pier front is usually built in the river on the side of the river shoreline, the connecting curve is also designed as a bridge in the water. The piers in the water occupy the river channel, causing problems of navigation and flood control, and the construction is also very difficult, with high project cost. The connecting curve railway also occupies valuable shoreline resources. The disadvantage of this railway layout is that railway connection curve bridges need to be designed at both ends of the pier trestle. According to the current railway design standard, a 90-degree railway bend requires a radius of 200 - 300m. The two connecting curve bridges will inevitably occupy 400 - 600m of the river channel and valuable pier shoreline resources.

[0004] The turntable usually refers to the locomotive turntable, which is the main equipment for the locomotive to turn around in the locomotive depot and locomotive turnaround section. The locomotive turntable is a special equipment for the railway locomotive to turn around in place and has been widely used in railway locomotive depots in China. The turntable has not been applied to the combined rail and water transportation terminal. If this steering equipment that can rotate at any angle is applied to the combined rail and water transportation terminal, it can save the railway connection curve bridge and 400 - 600m of the river channel and valuable pier shoreline resources.

[0005] However, at present, the locomotive turntable requires a tractor or a car dumper to transfer the vehicle from the ground track to the turntable or transfer the vehicle from the turntable to the ground track, and the operation is very inconvenient. Therefore, it is necessary to provide a turntable with its own car dumper power. Summary of the Invention

[0006] To solve at least some of the above problems existing in the prior art, the present invention provides a turntable with its own car dumper power and a vehicle transfer system at the front of a combined rail and water transportation terminal.

[0007] The present invention is implemented as follows:

[0008] On the one hand, the present invention provides a turntable with built-in car pulling power. A turntable track is provided on the turntable along its diameter. A car pulling mechanism is provided on the turntable. The car pulling mechanism includes a power system and a robotic arm connected to the power system. The robotic arm is arranged along the turntable track and moves telescopically along the turntable track under the drive of the power system. A coupler connecting device is provided at one end of the robotic arm away from the power system.

[0009] Further, the robotic arm includes a plurality of hinge planar four-bar mechanisms connected in sequence. The lengths of the four links of the hinge planar four-bar mechanism are equal. Support rods extend from the connection points of adjacent two hinge planar four-bar mechanisms to both sides respectively. A robotic arm traveling wheel is provided at the end of each support rod away from the connection point.

[0010] Further, a robotic arm traveling track for the robotic arm traveling wheels to travel is provided on the turntable track.

[0011] Further, the power system is a hydraulic drive system.

[0012] Further, a wheel stop device for restricting the movement of the vehicle relative to the turntable is provided on the turntable track.

[0013] Further, a hydraulic rail alignment device is provided on the turntable track. The hydraulic rail alignment device includes a plurality of hydraulic cylinder pushing mechanisms corresponding to the positions of each wheel of the vehicle to be rotated.

[0014] Further, the hydraulic rail alignment device further includes a travel switch for detecting the cylinder position of each hydraulic cylinder pushing mechanism. The turntable further includes a controller for controlling the traveling of the turntable. The travel switch sends the detected cylinder positions of each hydraulic cylinder pushing mechanism to the controller.

[0015] Further, turntable wheels are provided at the bottom of the end of the turntable track away from the center of the turntable. A foundation pit is provided at the bottom of the turntable. An annular track for the turntable wheels to move is provided in the foundation pit.

[0016] On the other hand, the present invention also provides an iron-water combined transport terminal front turntable system, including a land track, a wharf trestle track, and a turntable with built-in car pulling power as described in any one of the above. The turntable connects the land track and the wharf trestle track.

[0017] Further, the wharf trestle track is an automatic conveyor system provided on the wharf trestle. When the turntable rotates to a certain angle, the turntable track is connected and collinear with the automatic conveyor system.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The turntable with built-in car shunting power and the car transfer system at the front of the iron-water combined transport terminal provided by the present invention drive the robotic arm to move telescopically along the car transfer track through the power system, so as to tow the vehicle from the ground track to the turntable or push the vehicle from the turntable to the ground track, realizing automatic car shunting, convenient car transfer, and not requiring additional space occupation; this turntable with built-in car shunting power combines the functions of turning and car shunting. When applied at the front of the iron-water combined transport terminal, it can not only save the land for railway curves but also save the land for the car shunting machine on the trestle, and is an excellent and convenient facility used in ports. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a turntable with built-in car shunting power provided by an embodiment of the present invention;

[0021] Figure 2 It is a structural diagram of the robotic arm provided by an embodiment of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the car transfer system at the front of the iron-water combined transport terminal provided by an embodiment of the present invention;

[0023] Figures 4 to 8 It is a schematic diagram of the working process of the car transfer system at the front of the iron-water combined transport terminal provided by an embodiment of the present invention;

[0024] Figure 9 It is a schematic structural diagram of the automatic conveyor system provided by an embodiment of the present invention.

[0025] Description of the reference numerals: 1 - car transfer track, 2 - wheel stop device, 3 - power system, 4 - driver's cab, 5 - robotic arm, 6 - circular track, 7 - platform and railing, 8 - robotic arm running track, 9 - support rod, 10 - robotic arm running wheel, 11 - coupler connection device, 12 - land track, 13 - terminal trestle track, 14 - turntable, 15 - vehicle, 16 - conveyor belt, 17 - rotating shaft. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Such as Figure 1 And Figure 2As shown in the figure, an embodiment of the present invention provides a turntable 14 with its own car pulling power. A turntrack 1 is provided on the turntable 14 along its diameter for the vehicle 15 to turn. The turntrack 1 can adopt a steel box girder structure. There are longitudinal and transverse stiffeners and diaphragms inside the steel box girder. The turntable 14 also includes end beams and several cross beams, and the overall structure is a fully welded structure. The steel box girder has an upward camber during manufacturing and allows a certain amount of downward deflection under the gravity load of the vehicle 15. The turntable 14 also includes a center plate. Thrust ball bearings and deep groove ball bearings are installed inside the center plate. Therefore, the resistance of the center plate is relatively small during turning. There is a central hole from the top to the bottom of the center plate, and a wire conduit is passed through the hole to lead the wire from the power source to the collector slip ring, and continuous power supply is given to the rotating working equipment through the carbon brush installed at the disc body. Walkways and railings 7 are laid on both sides of the turntrack 1, with a total width of about 4.9 m. Even when the vehicle 15 is parked on the turntable 14, the staff can still pass through. A car pulling mechanism is provided on the turntable 14. The car pulling mechanism includes a power system 3 and a robotic arm 5 connected to the power system 3. The robotic arm 5 is arranged along the turntrack 1 and moves telescopically along the turntrack 1 under the drive of the power system 3. A coupler connection device 11 is provided at one end of the robotic arm 5 away from the power system 3. During use, the coupler connection device 11 of the robotic arm 5 is connected to the coupler of the vehicle 15 to be turned. The power system 3 drives the robotic arm 5 to move telescopically along the turntrack 1, so as to pull the vehicle 15 from the ground track to the turntable 14, or push the vehicle 15 from the turntable 14 to the ground track, realizing automatic car pulling.

[0028] In one embodiment, the length of the robotic arm 5 after extension is 15 m. The power system 3 can pull a 100T heavy vehicle at a speed of 1 m / s to pull the vehicle 15 onto the turntable 14. After the turntable 14 drives the vehicle 15 to turn, the vehicle 15 is pushed out of the turntable 14 at a speed of 1 m / s.

[0029] Refining the above embodiment, the robotic arm 5 includes a plurality of hinge planar four-bar mechanisms connected in sequence. The lengths of the four link rods of the hinge planar four-bar mechanism are equal. Support rods 9 are respectively extended from the connection points of adjacent two hinge planar four-bar mechanisms to both sides. A robotic arm running wheel 10 is provided at the end of each support rod 9 away from the connection point. When the power system 3 drives the robotic arm 5 to move telescopically along the turntrack 1, the robotic arm 5 runs on the turntrack 1 through the robotic arm running wheel 10, making the movement of the robotic arm 5 smoother and can support the robotic arm 5 to make its structure stable. Further, a robotic arm running track 8 for the robotic arm running wheel 10 to run is provided on the turntrack 1, so that the robotic arm 5 runs along a specified path, further improving the running stability. Preferably, the power system 3 is a hydraulic drive system, and the robotic arm 5 is driven to run through the hydraulic drive system.

[0030] Furthermore, a wheel stop device 2 for restricting the movement of the vehicle 15 relative to the turntable 14 is provided on the transfer track 1, which is used to fix the vehicle 15 to the turntable 14 when the vehicle 15 rotates with the turntable 14. In this embodiment, after the vehicle 15 is sent onto the turntable 14, the wheel stop device 2 is used to fix the vehicle 15 to the turntable 14, and after the turntable 14 rotates, the wheel stop device 2 can be separated from the turntable 14 to release the restriction. As for the specific structure of the wheel stop device 2, any structure that can perform position limitation can be used, and details will not be elaborated here.

[0031] Preferably, a hydraulic rail alignment device is further provided on the transfer track 1. The hydraulic rail alignment device includes a plurality of hydraulic cylinder pushing mechanisms corresponding to the positions of each wheel of the vehicle 15 to be transferred. When the wheels of the vehicle 15 to be transferred are arranged in the form of wheel sets, the hydraulic cylinder pushing mechanisms can be arranged corresponding to the wheel sets of the vehicle 15 to be transferred, that is, one hydraulic cylinder pushing mechanism is arranged at each wheel set. Therefore, generally four hydraulic cylinder pushing mechanisms are provided, and the four cylinders are centrally supplied with oil by a hydraulic station. To make the speeds of the four cylinders basically the same, the hydraulic station is placed near the midpoint of the transfer track 1. When aligning the rails, it is not required that the four cylinders have the same speed, as long as all the cylinders complete their entire strokes. The hydraulic cylinder pushing mechanisms can be used to detect whether the wheels at various positions of the vehicle 15 to be transferred are in place to achieve rail alignment. Preferably, the hydraulic rail alignment device further includes travel switches for detecting the cylinder positions of each hydraulic cylinder pushing mechanism. The turntable 14 further includes a controller for controlling the running of the turntable 14. The controller is arranged in the driver's cab 4, which is the control center of the turntable 14, and glass windows are installed around it for easy viewing. The travel switches send the detected cylinder positions of each hydraulic cylinder pushing mechanism to the controller. Thus, when the travel switches detect that the cylinders of each hydraulic cylinder pushing mechanism have completed their entire strokes, it indicates that the rail alignment is completed, and the controller can control the turntable 14 to perform operations such as turning the vehicle. To avoid excessive lateral swing of the locomotive when the vehicle is turning and stopping, there is no braking device for turning the vehicle, and the turntable 14 is smoothly rotated by stepless speed regulation of the frequency converter.

[0032] Furthermore, transfer wheels are provided at the bottom of the end of the transfer track 1 far from the center of the turntable 14. One of them is a driving wheel, and the others are driven wheels. The wheels are all installed in the angle box, which is firm and can be adjusted in position, and can be corrected even if rail gnawing occurs. The turntable 14 makes a circular movement around the center plate to perform operations such as turning around and changing lanes for the vehicle 15. Therefore, a circular foundation pit with a diameter equal to the total length of the transfer track 1 of the turntable 14 is provided at the bottom of the turntable 14. An annular track 6 for the movement of the transfer wheels is provided in the foundation pit, and the transfer wheels walk along the annular track 6 in the foundation pit during turning.

[0033] As Figure 3As shown in the figure, an embodiment of the present invention further provides a vehicle transfer system at the front of an intermodal railway and waterway terminal, which includes a land track 12 and a wharf trestle track 13, and further includes a turntable 14 with vehicle pushing power as described above. The turntable 14 connects the land track 12 and the wharf trestle track 13. Preferably, two vertical turntable tracks 1 are provided on the turntable 14. One of the turntable tracks 1 is connected to and collinear with the land track 12, and the other turntable track 1 is connected to and collinear with the wharf trestle track 13. Through the turntable 14, the vehicle 15 can vertically enter the wharf trestle track 13 from the land track 12 or the vehicle 15 can vertically enter the land track 12 from the wharf trestle track 13. And one of the two vertical turntable tracks 1 on the turntable 14 always coincides with the wharf trestle track 13, while the other track coincides with the land track 12, improving the efficiency of the railway vehicle 15 to achieve vertical turning through the turntable 14. Compared with the traditional locomotive turntable 14, it only needs to rotate 90 degrees each time, doubling the vehicle transfer efficiency, and can achieve uninterrupted operation.

[0034] The working process of the vehicle transfer system at the front of the intermodal railway and waterway terminal is as follows:

[0035] (1) As Figure 4 shown, the whole train of freight cars arrives at the designated position, the automatic uncoupling device uncouples, and the turntable 14 track aligns with the trestle track to prepare for receiving the vehicle;

[0036] (2) As Figure 5 shown, the hydraulic drive system is started, the robotic arm 5 extends out and is connected to the coupler of the vehicle 15, and the vehicle 15 is pulled from position A on the turntable 14 to the designated position. The wheel blocking device 2 on the turntable 14 fixes the vehicle 15;

[0037] (3) As Figure 6 shown, the turntable 14 rotates 90° to send the vehicle 15 at position A to the designated position. At this time, the vehicle 15 at position A is waiting to leave, and at the same time, the vehicle 15 ready to enter is already at position D;

[0038] (4) As Figure 7 shown, the vehicle 15 at position A is pushed out of the turntable 14 by the robotic arm 5 and automatically uncoupled. At the same time, the vehicle 15 at position D repeats step (2) and is pulled into the turntable 14 by the robotic arm 5, and the two actions are carried out synchronously;

[0039] (5) As Figure 8 shown, the turntable 14 rotates 90°. At this time, the vehicle 15 at position D is waiting to leave, and at the same time, the vehicle 15 ready to enter is already at position C. Then, repeat steps (3)-(5) until the last vehicle 15 is sent in.

[0040] Preferably, the quay trestle track 13 is an automatic conveyor system provided on the quay trestle. When the turntable 14 rotates to a certain angle, the turntable track 1 is connected to the automatic conveyor system and collinear. The automatic conveyor system includes a conveyor belt 16, a rotating shaft 17, and a driving motor. The conveyor belt 16 is annular. There are multiple rotating shafts 17 arranged side by side inside the conveyor belt 16. Adjacent rotating shafts 17 are close to each other but do not interfere with each other. The top and bottom of the rotating shaft 17 are respectively in close contact with the conveyor belt 16 on its upper and lower sides. The driving motor drives the rotating shaft 17 to rotate, thereby driving the conveyor belt 16 to move. In this embodiment, the rotating shaft 17 drives the conveyor belt 16 to move on the one hand and supports the conveyor belt 16 on the other hand. The conveyor belt 16 includes a plurality of small-thickness steel structure units arranged in sequence. The bottoms of the plurality of small-thickness steel structure units are closely connected so that the two ends of the conveyor belt 16 can be bent to a certain extent and a seamless surface can be achieved on the two parallel planes of the conveyor belt 16. The cross-section of the conveyor belt 16 is in the form of a groove, and the surface in contact with the wheel tread is designed according to the rail cross-section parameters, playing the role of supporting the wheel set and the role of lateral positioning. A hydraulic clamping device for fixing the wheels is installed on the conveyor belt 16. Through remote operation, the hydraulic clamping device realizes the clamping function after receiving a signal, so that the wheels cannot rotate.

[0041] After the turntable 14 and the trestle are aligned, the vehicle 15 is moved from the turntable 14 to the automatic conveyor system on the trestle. After the wheels of the vehicle 15 are fixed by the hydraulic clamping device on the conveyor belt 16, the driving motor of the automatic conveyor system starts to operate, drives the conveyor belt 16 to move through the transmission shaft, and thereby conveys the vehicle 15 to a fixed position.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An iron-water combined transport terminal front transfer system, including land tracks and wharf trestle tracks, Characterized in that: It further includes a turntable with its own car-pushing power, and the turntable connects the land tracks and the wharf trestle tracks; There are two transfer tracks vertically arranged along the diameter of the turntable. A car-pushing mechanism is provided on the turntable. The car-pushing mechanism includes a power system arranged at the center of the turntable and four robotic arms connected to the power system. The robotic arms are arranged along the transfer tracks and move telescopically along the transfer tracks under the drive of the power system. A coupler connection device is provided at the end of the robotic arm far from the power system; Connect the coupler connection device of the robotic arm to the coupler of the vehicle to be transferred, and drive the robotic arm to move telescopically along the transfer track through the power system to tow the vehicle from the ground track to the turntable or push the vehicle from the turntable to the ground track to achieve automatic car-pushing; The turntable only needs to rotate 90 degrees each time to achieve uninterrupted operation; The transfer tracks adopt a steel box girder structure. Longitudinal stiffeners, transverse stiffeners and diaphragms are provided inside the steel box girder structure. The turntable further includes a center plate, and thrust ball bearings and deep groove ball bearings are installed inside the center plate; The robotic arm includes a plurality of hinge planar four-bar mechanisms connected in sequence. The lengths of the four connecting rods of the hinge planar four-bar mechanism are equal. Support rods are respectively extended from both sides at the connection points of adjacent two hinge planar four-bar mechanisms. A robotic arm running wheel is provided at the end of each support rod far from the connection point.

2. The iron-water combined transport terminal front transfer system according to claim 1, Characterized in that: A robotic arm running track for the robotic arm running wheels to run is provided on the transfer track.

3. The iron-water combined transport terminal front transfer system according to claim 1, Characterized in that: The power system is a hydraulic drive system.

4. The iron-water combined transport terminal front transfer system according to claim 1, Characterized in that: A wheel stop device for restricting the movement of the vehicle relative to the turntable is provided on the transfer track.

5. The iron-water combined transport terminal front transfer system according to claim 1, Characterized in that: A hydraulic rail alignment device is provided on the transfer track. The hydraulic rail alignment device includes a plurality of hydraulic cylinder pushing mechanisms corresponding to the positions of each wheel of the vehicle to be transferred.

6. The iron-water combined transport terminal front transfer system according to claim 5, Characterized in that: The hydraulic rail alignment device further includes a travel switch for detecting the cylinder position of each hydraulic cylinder pushing mechanism. The turntable further includes a controller for controlling the running of the turntable. The travel switch sends the detected cylinder positions of each hydraulic cylinder pushing mechanism to the controller.

7. The iron-water combined transport terminal front transfer system according to claim 1, Characterized in that: Transfer wheels are provided at the bottom of the end of the transfer track far from the center of the turntable. A foundation pit is provided at the bottom of the turntable, and an annular track for the transfer wheels to move is provided in the foundation pit.

8. The iron-water combined transport terminal front transfer system according to claim 1, Characterized in that: The quay trestle track is an automatic conveyor system provided on the quay trestle. When the turntable rotates to a certain angle, the transfer track is connected to and collinear with the automatic conveyor system.

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