A method and system for receiving and unloading a long steel rail of different sides

Abstract

This invention discloses a method and system for unloading long steel rails on opposite sides, comprising the following steps: S11: A lifting device clamps a first steel rail and moves it along a first direction; S12: The lifting device passes the first steel rail through the rail clamp of a rail-shifting device; S13: The rail-shifting device can selectively shift the first steel rail from one side to the other, or not shift it; S14: The lifting device clamps the first steel rail and moves it along the first direction, causing the first steel rail to enter the clamp of the unloading trolley in the unloading rail assembly; S15: The lifting device pushes the first steel rail along the first direction, causing one end of the first steel rail to fall to the ground, and fixing one end of the first steel rail in a preset position; S16: A tractor pulls the unloading rail assembly along a second direction, and the lifting device releases the first steel rail until the first steel rail detaches from the unloading rail assembly; wherein the first direction and the second direction are opposite. This invention can selectively lower the steel rail from either side of the steel rails on the unloading rail assembly.

Description

Technical Field

[0001] This invention relates to the field of rail loading and unloading technology, and in particular to a method and system for loading and unloading long rails on opposite sides. Background Technology

[0002] After a certain number of years of use, the rails that are worn out need to be replaced.

[0003] CN111501442B discloses a method for replacing long rails, including: 1) connecting the short rails to be replaced and loosening the fasteners; 2) moving the rail replacement vehicle to the replacement site, aligning the new rail joints with the central guide frame of the rail replacement vehicle, and using a lifting screw to lower the rail replacement vehicle to its lowest position; 3) lifting the new rails on both sides to allow them to enter the central guide frame, and the rail replacement vehicle continues to move forward; 4) lifting the old rails on both sides to allow them to enter the lower guide frame. 5) Insert the new rail into the upper guide wheel, and move the rail-changing vehicle forward to guide the new rail into the guide groove and align it with the rail; 6) Cut and grind the new rail so that one end of the new rail aligns with the already laid rail, and adjust the rail gap; 7) Move the rail-changing vehicle forward slowly so that the rail slowly comes off the middle guide frame; just before the rail is about to come off the rear guide frame of the rail-changing vehicle, use a hand-operated hoist to hold the new rail; after the rail has completely come off the rear guide frame, lower the new rail and insert it into the rail slot on the sleeper; after the rail replacement is completed, the rail-changing vehicle leaves.

[0004] This long-rail replacement method involves first lifting the old rails on both sides and then laying the new rails. However, when laying the rails, both new rails are laid down completely at once, without the option to selectively lay down either the left or right side to replace a single rail. This results in rails that have not reached their service life being replaced, leading to a waste of rails. Summary of the Invention

[0005] In view of this, it is necessary to provide a method and system for unloading long rails on opposite sides to solve the technical problem in the prior art that it is impossible to selectively unload a single rail when changing rails.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a method for unloading and taking down long rails on opposite sides, comprising the following steps:

[0007] S11: The lifting device clamps the first rail and moves it in the first direction;

[0008] S12: The lifting device passes the first rail through the rail clamp of the rail shifting device on the rail collection and unloading vehicle;

[0009] S13: The rail shifting device can selectively shift the first rail from one side of the rail receiving and unloading vehicle to the other side, or not shift the rail at all;

[0010] S14: The lifting device clamps the first rail and moves it in the first direction, so that the first rail enters the clamp of the rail collection and unloading trolley in the rail collection and unloading car group;

[0011] S15: The lifting device pushes the first rail to move along the first direction, so that one end of the first rail falls to the ground and fixes one end of the first rail in a preset position;

[0012] S16: The tractor pulls the rail collection and unloading vehicle group to move in the second direction, and the lifting device releases the first rail until the first rail falls off the rail collection and unloading vehicle group;

[0013] The first direction and the second direction are opposite.

[0014] In one embodiment, the following steps are also included:

[0015] S17: Raise the end of the second rail that is close to the rail collection and unloading vehicle, and align the rail collection and unloading trolley clamps with the second rail.

[0016] S18: The rail collection and unloading trolley moves in the direction close to the second rail, so that the second rail enters the clamp of the rail collection and unloading trolley and is lifted.

[0017] S19: Loosen the fixed end of the second rail, the lifting device clamps the second rail, and the lifting device drives the second rail to move along the second direction to the rail clamp of the rail shifting device;

[0018] S20: The rail shifting device can selectively shift the second rail from one side of the rail receiving and unloading vehicle to the other side, or not shift the rail at all;

[0019] S21: The lifting device clamps the second rail, the tractor drives the rail collection and unloading vehicle to move in the first direction, and the lifting device moves relative to the rail collection and unloading vehicle in the second direction until the end of the second rail moves to the preset position of the rail collection and unloading vehicle. Then the tractor stops, the lifting device clamps the rail to the locking vehicle, and locks the end of the second rail.

[0020] In one embodiment, step S14 further includes the following steps:

[0021] The lifting device releases the first rail and moves along the second direction from one end of the first rail to the other end, and then clamps the first rail.

[0022] In one embodiment, the following steps are included before step S17:

[0023] Before laying down the rails, remove the components that secure the second rail.

[0024] In one embodiment, step S12 further includes the following steps:

[0025] The lifting device releases the first rail, allowing the end of the rail to hang down naturally.

[0026] In one embodiment, step S13 is followed by the following step:

[0027] The lifting device clamps the first rail and enters the guide chute of the work vehicle in the rail collection and unloading car group.

[0028] In one embodiment, during step 16, when the tractor is pulling the rail-receiving and unloading vehicle group, if the distance between the lifting device and the rail-shifting device is less than a preset value, the lifting device releases the first rail.

[0029] In one embodiment, in step 19, the lifting device moves the second rail through the guide groove of the work vehicle and onto the rail clamp of the rail shifting device.

[0030] In one embodiment, before steps S13 and S20, the lifting device needs to loosen the first rail and the second rail respectively.

[0031] The present invention also relates to a rail loading and unloading system, comprising:

[0032] A rail-collecting and unloading vehicle group capable of moving along the guide rails of a train track;

[0033] A rail-shifting device is connected to the rail-collecting and unloading vehicle group and is used to shift the rails between the two sides of the rail-collecting and unloading vehicle group.

[0034] A lifting device is movably mounted on the rail-receiving and unloading car unit along its length.

[0035] A tractor unit, connected to the rail collection and unloading vehicle group, is used to drive the rail collection and unloading vehicle group to move along the guide rails.

[0036] Compared with the prior art, the beneficial effects of the present invention include: the lifting device can lift the first rails on both sides of the rail collection and unloading vehicle assembly using the booms on both sides; the lifting device can clamp the first rails on both sides of the rail collection and unloading vehicle assembly and move them along a first direction or a second direction, allowing the rail collection and unloading vehicle assembly to selectively lower the first rails from either side of the assembly; since lowering a rail from one side of the rail collection and unloading vehicle assembly results in the other side being relatively heavier, causing uneven loading during the movement of the assembly, in this application, a rail-shifting device can be used to move the first rails from one side of the rail collection and unloading vehicle assembly to the other side. When it is necessary to unload the first rails from the rail collection and unloading vehicle assembly, the first rails can be moved from one side of the assembly to the other side using the rail-shifting device.

[0037] The method described above involves unloading the first rail from the side with more rails on the rail collection and unloading vehicle, and during the unloading of the five rails, the first rail can be unloaded to either side of the rail, thus avoiding the need for the rail collection and unloading vehicle to...

[0038] An off-center load situation has occurred. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the rail receiving and unloading system according to an embodiment of the present invention;

[0040] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0041] Figure 3 This is a schematic diagram of the rail unloading system according to an embodiment of the present invention during rail unloading;

[0042] Figure 4 This is a schematic diagram of the rail unloading system according to an embodiment of the present invention during rail unloading;

[0043] Figure 5 This is a schematic diagram of the rail take-up and unloading system according to an embodiment of the present invention during rail take-up;

[0044] Figure 6 This is a schematic diagram of the rail take-up and unloading system according to an embodiment of the present invention during rail take-up;

[0045] Figure 7 This is a schematic diagram of the lifting device in the rail unloading system according to an embodiment of the present invention;

[0046] Figure 8 This is a schematic diagram of the structure of the rail receiving and unloading trolley in the rail receiving and unloading system according to an embodiment of the present invention;

[0047] Figure 9 This is a schematic diagram of the structure of the work vehicle in the rail receiving and unloading system according to an embodiment of the present invention;

[0048] Figure 10 This is a schematic diagram of the locking car structure in the rail receiving and unloading system according to an embodiment of the present invention;

[0049] Figure 11 This is a schematic diagram of the structure of the transport vehicle in the rail receiving and unloading system according to an embodiment of the present invention;

[0050] Figure 12 This is a schematic diagram of the structure of the safety car and safety door in the rail receiving and unloading system according to an embodiment of the present invention;

[0051] Figure 13 This is a schematic diagram of the structure of the transfer car and the rail shifting device in the rail receiving and unloading system according to an embodiment of the present invention;

[0052] Figure 14 This is a schematic diagram of the tractor vehicle in the rail receiving and unloading system according to an embodiment of the present invention.

[0053] Figure label:

[0054] Lifting device 1;

[0055] Rail receiving and unloading vehicle set 2;

[0056] 21 rail-receiving and unloading trolleys;

[0057] 22 working vehicles;

[0058] Lock car 23;

[0059] 24 transport vehicles;

[0060] Safety car 25;

[0061] Transit vehicle 26;

[0062] Safety door 27;

[0063] Rail shifting device 3;

[0064] Tractor 4. Detailed Implementation

[0065] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0066] like Figure 1 , 2 Figure 6 shows the working principle diagram of a method for unloading and taking down long rails on opposite sides provided by the present invention. Figure 1 , 2 The rail unloading system is divided into three parts arranged sequentially from top to bottom by a décor line. The method for unloading long rails on opposite sides includes the following steps:

[0067] S11: The lifting device 1 clamps the first rail and moves it in the first direction;

[0068] S12: The lifting device 1 passes the first rail through the rail clamp of the rail shifting device 3 on the rail collection and unloading vehicle 2;

[0069] S13: The rail shifting device 3 can selectively shift the first rail from one side of the rail receiving and unloading car group 2 to the other side, or not shift the rail.

[0070] S14: The lifting device 1 clamps the first rail and moves it in the first direction, so that the first rail enters the clamp of the rail collection and unloading trolley 21 in the rail collection and unloading car group 2;

[0071] S15: The lifting device 1 pushes the first rail to move along the first direction, so that one end of the first rail falls to the ground and fixes one end of the first rail in a preset position;

[0072] S16: The tractor 4 pulls the rail collection and unloading vehicle 2 to move in the second direction, and the lifting device 1 releases the first rail until the first rail falls off the rail collection and unloading vehicle 2.

[0073] The first direction and the second direction are opposite.

[0074] The lifting device 1 can lift the first rails on both sides of the rail collection and unloading vehicle 2 using the booms on both sides. The lifting device 1 can clamp the first rails on both sides of the rail collection and unloading vehicle 2 and move them along a first direction or a second direction, so that the rail collection and unloading vehicle 2 can selectively lower the first rails from either side of the rail collection and unloading vehicle 2. Since lowering the rails from one side of the rail collection and unloading vehicle 2 causes the other side of the rail collection and unloading vehicle 2 to be relatively heavier, an off-center load situation will occur during the movement of the rail collection and unloading vehicle 2. In this application, the rail shifting device 3 can move the first rails from one side of the rail collection and unloading vehicle 2 to the other side of the rail collection and unloading vehicle 2. When it is necessary to unload the first rails on the rail collection and unloading vehicle 2, the first rails on the side with more weight on the rail collection and unloading vehicle 2 can be unloaded from the rail collection and unloading vehicle 2 according to the above method. During the unloading process, the first rails can be unloaded to either side of the rail, which can avoid the off-center load situation of the rail collection and unloading vehicle 2.

[0075] In one embodiment, the first direction is the backward direction of the rail collection and unloading vehicle group 2, and the second direction is the forward direction of the rail collection and unloading vehicle group 2.

[0076] The lifting device 1 is slidably mounted on the upper part of the rail receiving and unloading vehicle 2, and the lifting device 1 has at least two clamping arms, which correspond to the two sides of the rail shifting device 3 respectively.

[0077] In one embodiment, the method for unloading and collecting long rails on opposite sides further includes the following steps:

[0078] S17: Raise the end of the second rail that is close to the rail collection and unloading vehicle 2, and make the clamps of the rail collection and unloading trolley 21 align with the second rail.

[0079] S18: The rail collection and unloading trolley 21 moves in the direction close to the second rail, so that the second rail enters the clamp of the rail collection and unloading trolley 21 and is lifted.

[0080] S19: Loosen the fixed end of the second rail, the lifting device 1 clamps the second rail, and the lifting device 1 drives the second rail to move along the second direction to the rail clamp of the rail shifting device 3;

[0081] S20: The rail shifting device 3 can selectively shift the second rail from one side of the rail receiving and unloading car group 2 to the other side, or not shift the rail at all.

[0082] S21: The lifting device 1 clamps the second rail, and the tractor 4 drives the rail collection and unloading vehicle 2 to move in the first direction. The lifting device 1 moves relative to the rail collection and unloading vehicle 2 in the second direction until the second rail moves to the preset position of the rail collection and unloading vehicle 2. At this point, the tractor 4 stops, and the lifting device 1 clamps the rail to the locking vehicle 23 to lock the end of the second rail. It should be understood that when the second rail is received onto the rail collection and unloading vehicle 2, if the portion of the second rail that has moved onto the rail collection and unloading vehicle 2 reaches a certain value, the second rail cannot continue to move onto the rail collection and unloading vehicle 2. At this point, the tractor 4 stops, and the lifting device 1 clamps the rail to continue moving.

[0083] The above method enables the collection of rails on either side of the rail system. However, during the rail replacement process after unloading the old rails, due to the limited window time, there may not be enough time to replace the old rails. If the old rails are unloaded first, it may prevent trains from passing. In this application, the new rails are laid down first. If the window time is insufficient, the rail replacement can be carried out later. The old rails can be removed and the new rails can be installed during the next window time.

[0084] In step S17, one end of the second rail can be fixed to a designated location by a clamp or by bolts or other connecting parts.

[0085] In step S18, the rail collection and unloading trolley 21 in the rail collection and unloading car group 2 is moved closer to the second rail by the tractor 4.

[0086] In one embodiment, step S14 further includes the following steps:

[0087] The lifting device 1 releases the first rail and moves along the second direction from one end of the first rail to the other end of the first rail, and then clamps the first rail.

[0088] The lifting device 1 always slides on the rail collection and unloading vehicle group 2. By moving the lifting device 1 from one end of the first rail to the other end of the first rail, the lifting device 1 continues to slide on the rail collection and unloading vehicle group 2 while pushing the other end of the first rail to slide. This increases the sliding range of the lifting device 1. Moreover, if the first rail is too long, the lifting device 1 can be moved back and forth to make the longer rail slide off the rail collection and unloading vehicle group 2.

[0089] In one embodiment, the following steps are included before step S17:

[0090] Before laying down the rails, remove the components that secure the second rail.

[0091] When in use, the rails are fixed to the sleepers with fasteners. By removing the fasteners that fix the second rail, the second rail is made loose and can be separated from the sleeper.

[0092] In one embodiment, step S12 further includes the following steps:

[0093] The lifting device 1 releases the first rail, allowing the end of the rail to hang down naturally.

[0094] The naturally hanging rails are only subject to gravity, making it easy for the rail-shifting device 3 to move the rails.

[0095] In one embodiment, step S13 is followed by the following step:

[0096] The lifting device 1 clamps the first rail and enters the guide groove of the working vehicle 22 in the rail collection and unloading vehicle group 2.

[0097] For longer rails, inserting the rails into the guide groove of the work vehicle 22 can provide guidance for the sliding of the rails and prevent the long rails from deflecting or bending during the sliding process.

[0098] In one embodiment, in step S15, after one end of the first rail is fixed, the lifting device 1 clamps the other end of the first rail and engages neutral.

[0099] By clamping the first rail with the lifting device 1 and engaging neutral, the lifting device 1 moves relative to the rail receiving and unloading vehicle 2 under the pull of the first rail during the movement of the rail receiving and unloading vehicle 2. The lifting device 1 can fix the other end of the first rail, preventing the first rail from shaking during the unloading process. Moreover, it can also drive the lifting device 1 to move relative to the rail receiving and unloading vehicle 2 while the first rail is being unloaded.

[0100] In one embodiment, during step 16, when the tractor 4 is pulling the rail-receiving and unloading vehicle group 2, if the distance between the lifting device 1 and the rail-shifting device 3 is less than a preset value, the lifting device 1 releases the first rail.

[0101] When the lifting device 1 pushes the first rail to near the rail shifting device 3, the lifting device 1 can no longer push the first rail. At this time, the first rail is released. Since most of the first rail has already fallen to the ground, the lifting device 1 will not cause the first rail to swing when it releases the first rail. Then the rail collection and unloading vehicle group 2 continues to move, so that the first rail passes through the guide groove of the rail shifting device 3 and the working vehicle 22, and finally slides off the rail collection and unloading vehicle group 2. The guide groove of the rail shifting device 3 and the working vehicle 22 can provide guidance for the sliding of the first rail.

[0102] The preset value can be set as needed, and can be from 0.1 to 1m.

[0103] In one embodiment, in step 19, the lifting device 1 moves the second rail through the guide groove of the work vehicle 22 and onto the rail clamp of the rail shifting device 3.

[0104] For longer rails, inserting the rail into the guide groove of the work vehicle 22 and then moving it onto the rail clamp of the rail shifting device 3 can provide guidance for the sliding of the rail and prevent the long rail from deflecting or bending during the sliding process.

[0105] In one embodiment, before steps S13 and S20, the lifting device 1 needs to loosen the first rail and the second rail respectively.

[0106] In step S13, the rail-shifting device 3 needs to be moved from one side to the other. Therefore, before shifting the rail, the lifting device 1 needs to be controlled to release the rail. Of course, if the rail-shifting device 3 does not shift the rail, the lifting device 1 does not need to release the rail.

[0107] In one embodiment, in step S21, the lifting device 1 clamps the second rail and then engages neutral.

[0108] The second rail can be moved in the second direction by clamping the lifting device 1 itself, or the lifting device 1 can be put into neutral and the tractor 4 can pull the rail collection and unloading vehicle 2 to move in the first direction, so that the lifting device 1 moves in the second direction relative to the rail collection and unloading vehicle 2.

[0109] In one embodiment, step S21 is followed by the following step:

[0110] The lifting device 1 loosens the second rail, and then fixes the second rail to the rail collection and unloading vehicle 2.

[0111] The relative movement between the lifting device 1 and the rail collection and unloading vehicle 2 will cause the raw steel rail to gradually slide onto the rail collection and unloading vehicle 2. Then, by loosening the lifting device 1, the lifting device 1 can participate in the subsequent fixing of the second steel rail. Then, through fasteners, threaded parts and other components, the second steel rail can be fixed onto the rail collection and unloading vehicle 2 to prevent the second steel rail on the rail collection and unloading vehicle 2 from sliding.

[0112] The present invention also relates to a rail loading and unloading system, comprising a rail loading and unloading train 2 capable of moving along the guide of a train track, a rail shifting device 3, a lifting device 1, and a tractor 4. The rail shifting device 3 is connected to the rail loading and unloading train 2 and is used to shift the rail between the two sides of the rail loading and unloading train 2. The lifting device 1 is movably disposed on the rail loading and unloading train 2 along the length direction of the rail loading and unloading train 2. The tractor 4 is connected to the rail loading and unloading train 2 and is used to drive the rail loading and unloading train 2 to move along the guide of the rail.

[0113] In one embodiment, the rail-receiving and unloading train set 2 includes a locking car 23, a transport car 24, a safety car 25, a transition car 26, a work car 22, and a rail-receiving and unloading trolley 21 connected in sequence. The locking car 23, transport car 24, safety car 25, transition car 26, work car 22, and rail-receiving and unloading trolley 21 are all equipped with running rails (not shown in the figure) and bridge rails (not shown in the figure). There are two sets of running rails, which are arranged on both sides of the upper surface of the car body. The bridge rails are arranged at the head and / or tail of the running rails. The locking car 23 and the safety car 25 are both equipped with safety doors 27. The two safety doors 27 are symmetrically arranged at both ends of the transport car 24. The safety doors 251 prevent the impact of the rails during transportation. The rail-shifting device 3 is fixed on the transition car 26.

[0114] Among them, the locking car 23 can lock the rail collection and unloading car group 2 to the rail; the transport car 24 is used for loading long steel rails, and the transport car 24 can be any vehicle capable of transporting steel rails; the safety car 25 is a safety protection car for rail transport; the transition car 26 is used for the transition of steel rails between the safety car 25 and the working car 22; the working car 22 has a guide groove for guiding the steel rails; the rail collection and unloading trolley 21 is a special mechanical equipment for collecting and unloading pairs or single long steel rails placed on both sides or in the middle of the subway track. The lifting device 1, locking car 23, transport car 24, safety car 25, transition car 26, working car 22, rail collection and unloading trolley 21, safety door 27, rail shifting device 3 and traction car 4 are all existing devices and will not be described in detail in this application.

[0115] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for unloading and taking down long steel rails on opposite sides, characterized in that, Includes the following steps: S11: The lifting device clamps the first rail and moves it in the first direction; S12: The lifting device passes the first rail through the rail clamp of the rail shifting device on the rail collection and unloading vehicle; the lifting device releases the first rail and allows the end of the rail to hang down naturally; S13: The rail shifting device can selectively shift the first rail from one side of the rail receiving and unloading vehicle to the other side, or not shift the rail at all; S14: The lifting device clamps the first rail and moves it in the first direction, so that the first rail enters the clamp of the rail collection and unloading trolley in the rail collection and unloading car group; S15: The lifting device pushes the first rail to move along the first direction, so that one end of the first rail falls to the ground and fixes one end of the first rail in a preset position; S16: The tractor pulls the rail collection and unloading vehicle group to move in the second direction, and the lifting device releases the first rail until the first rail falls off the rail collection and unloading vehicle group; Wherein, the first direction and the second direction are opposite; S17: Raise the end of the second rail that is close to the rail collection and unloading vehicle, and align the rail collection and unloading trolley clamps with the second rail. S18: The rail collection and unloading trolley moves in the direction close to the second rail, so that the second rail enters the clamp of the rail collection and unloading trolley and is lifted. S19: The lifting device clamps the second rail, and the lifting device drives the second rail to move along the second direction to the rail clamp of the rail shifting device; S20: The rail shifting device can selectively shift the second rail from one side of the rail receiving and unloading vehicle to the other side, or not shift the rail at all; S21: The lifting device clamps the second rail, the tractor drives the rail collection and unloading vehicle to move in the first direction, and the lifting device moves relative to the rail collection and unloading vehicle in the second direction until the end of the second rail moves to the preset position of the rail collection and unloading vehicle. Then the tractor stops, the lifting device clamps the rail to the locking vehicle, and locks the end of the second rail.

2. The method for unloading and taking down long steel rails on opposite sides according to claim 1, characterized in that, Step S14 further includes the following steps: The lifting device releases the first rail and moves along the second direction from one end of the first rail to the other end, and then clamps the first rail.

3. The method for unloading and taking down long steel rails on opposite sides according to claim 1, characterized in that, The following steps are included before step S17: Before laying down the rails, remove the components that secure the second rail.

4. The method for unloading and taking down long steel rails on opposite sides according to claim 1, characterized in that, Following step S13, the following steps are also included: The lifting device clamps the first rail and enters the guide chute of the work vehicle in the rail collection and unloading car group.

5. The method for unloading and taking down long rails on opposite sides according to claim 1, characterized in that, In step 16, during the process of the tractor pulling the rail unloading vehicle group, when the distance between the lifting device and the rail shifting device is less than a preset value, the lifting device releases the first rail.

6. The method for unloading and taking down long steel rails on opposite sides according to claim 1, characterized in that, In step 19, the lifting device moves the second rail through the guide groove of the work vehicle and onto the rail clamp of the rail shifting device.

7. The method for unloading and taking down long steel rails on opposite sides according to claim 1, characterized in that, Before steps S13 and S20, the lifting device needs to loosen the first rail and the second rail respectively.

8. A rail receiving / unloading system, characterized in that, include: A rail-collecting and unloading vehicle group capable of moving along the guide rails of a train track; A rail-shifting device is connected to the rail-collecting and unloading vehicle group and is used to shift the rails between the two sides of the rail-collecting and unloading vehicle group. A lifting device is movably mounted on the rail-receiving and unloading car unit along its length. A tractor unit, connected to the rail collection and unloading vehicle group, is used to drive the rail collection and unloading vehicle group to move along the guide rails.

Images