Integral replacement construction method for high-speed railway turnout

Abstract

The application discloses a high-speed railway turnout integral replacement construction method and a rapid turnout transport vehicle, and aims to solve the problems of long construction time and low efficiency of the existing turnout replacement construction. The method comprises the following steps: the turnout is disassembled into four specific components according to preset welding points; and the special rapid turnout transport vehicle is used for transportation and on-site construction. The key innovation of the transport vehicle lies in a reinforcing device. The device comprises a multi-layer frame, each layer of the frame is provided with a sliding block capable of moving on a frame beam, and a pivoted vertical beam on one side of the frame can be rotated to a horizontal position and locked, at this time, the sliding block can be extended and moved onto the opened pivoted vertical beam to form a temporary loading and unloading platform. During construction, the gantry crane only needs to hoist the turnout components onto the sliding block, and then the sliding block moves the components into the frame (or moves the components out of the frame in the opposite direction), thereby greatly simplifying the operation difficulty and time of the gantry crane. The device is also preferably provided with a balanced cable-stayed device to ensure the stability of the pivoted vertical beam when the pivoted vertical beam is opened. The application significantly improves the automation degree, operation efficiency and construction safety of the turnout replacement through the cooperation of the equipment and the method.

Description

Technical Field

[0001] This invention relates to the field of railway engineering technology, and more specifically, to an efficient, safe, and precise construction method for the overall replacement of high-speed railway turnouts. Background Technology

[0002] High-speed railway turnouts are critical equipment on rail transit lines, enduring frequent impacts from train wheelsets. Long-term operation can lead to wear and even damage to key components such as the turnout tips and frog rails, posing a potential threat to train safety. Once a turnout is severely damaged, it must be replaced promptly. Currently, the commonly used method for replacing No. 18 single turnouts typically requires a long "maintenance window," occupying the track for extended periods and severely impacting the operational efficiency of high-speed railways. Therefore, how to shorten the turnout replacement time and improve construction efficiency is a pressing technical problem that needs to be solved in this field. Summary of the Invention

[0003] In view of this, the present invention proposes a construction method for the overall replacement of high-speed railway turnouts and a rapid turnout transport vehicle. The purpose of the present invention is to provide a construction method for the overall replacement of high-speed railway turnouts, aiming to solve the problem of excessively long construction time for high-speed turnout replacement in the prior art. By optimizing the turnout disassembly, transportation and on-site construction process, the present invention achieves rapid, safe and efficient replacement of turnouts.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention provides a construction method for the overall replacement of high-speed railway turnouts, comprising the following steps: Turnout disassembly: The turnout to be replaced is disassembled into four components (first to fourth) according to preset on-site welding points; the first component includes a straight main rail, a switch rail, and a guard rail; the second component includes a curved main rail; the third component includes a partial straight main rail, a wing rail, and a turnout center; the fourth component includes a partial straight main rail, a switch rail, a curved main rail, and a guard rail; Turnout transportation: A fast turnout transport vehicle consisting of a powered car and at least one unpowered car is used to transport the components; the unpowered car is equipped with a gantry crane for loading and unloading and a reinforcement device for fixing the components; On-site construction: The gantry crane and the reinforcement device are used in conjunction to complete the removal of the old turnout components and the installation of the new turnout components; the reinforcement device includes a multi-layered frame, each layer of which is equipped with a slider that can move on the frame crossbeam; the pivoting vertical beam on one side of the frame is a pivotable structure, capable of rotating around its intersection with the crossbeam. The shaft rotates open to a horizontal position and locks; the slider can extend and move to the open horizontal position and lock onto the pivot beam; the on-site construction steps specifically include: Removing the old component: opening one side of the pivot beam of one layer of the frame to a horizontal position, moving the slider of that layer onto the opened pivot beam; using a gantry crane to lift the old turnout component and place it on the slider, then using the slider to move the old turnout component into the frame crossbeam of that layer of the frame, and finally restoring the pivot beam to a vertical position and locking it in place; Removing the new component: opening the pivot beam of one layer of the frame to a horizontal position, using the slider to move the new turnout component from the frame crossbeam of that layer to the opened pivot beam, using a gantry crane to lift the new turnout component off the slider and lay it to the predetermined position on the track, and finally restoring the pivot beam to a vertical position and locking it in place; Process coordination: during the on-site construction process, the cutting of rails, the arrival of the railcar, the de-energization of the contact network, the loosening of the turnout fasteners, and the preparation work for dismantling electrical equipment are carried out simultaneously.

[0006] According to one embodiment of the present invention, the reinforcement device further includes a set of balancing cable-stayed devices for enhancing the stability of the frame when the pivotable vertical beam is opened; the balancing cable-stayed device includes: a cable, one end of which is connected to the unpowered vehicle body, and the other end which passes over the top of the upward extension of the non-pivotable vertical beam and is connected to the upper right corner of the frame; the frame pivot beam is fixedly connected to the frame crossbeam by a locking structure.

[0007] According to one embodiment of the present invention, the gantry crane is composed of a base a, a hydraulic motor, a telescopic beam, a column, a lifting point, a telescopic column, a telescopic hydraulic cylinder, a base b, and a transverse hydraulic cylinder; its erection process is as follows: after the hydraulic motor drives the whole to rotate to a predetermined angle, the transverse hydraulic cylinder extends to move the boom to a predetermined position, and finally the telescopic hydraulic cylinder extends to lower the telescopic column and form a support with the base b.

[0008] According to one embodiment of the present invention, the gantry crane retraction process is as follows: first, the telescopic hydraulic cylinder is retracted to retract the telescopic column and base b; then, the lateral hydraulic cylinder is retracted to retract the boom; and finally, the entire crane is rotated to the transport position by a hydraulic motor.

[0009] According to one embodiment of the present invention, the on-site construction process is as follows: First, the preparatory work such as cutting the rails, placing the railcar in place, de-energizing the overhead contact line, loosening the turnout fasteners, and dismantling the electrical equipment is completed simultaneously; then, the fast turnout transport vehicle is parked at the adjacent line of the turnout switching location, and the steps of old rail removal, new rail removal, fixing the new rail, and initial track adjustment are completed in sequence, and the fast turnout transport vehicle carrying the old turnout components is removed from the site.

[0010] According to one embodiment of the present invention, after the new rail is introduced, the following steps are performed in sequence: coarse adjustment of geometric dimensions, fine adjustment, on-site welding, weld grinding, forced cooling, non-destructive testing, single-sided installation of the first HRS external line device, installation of the pull-down device, comprehensive rail inspection, turnout area grinding, single-sided installation and commissioning of the second HRS external line device, and finally, after inspection and confirmation and restoration of power supply, the line is opened.

[0011] According to one embodiment of the present invention, the rapid turnout transport vehicle consists of three unpowered vehicles, each with a length of approximately 25 meters.

[0012] The present invention also provides a high-speed turnout transport vehicle using the construction method described above, comprising a powered vehicle and at least one unpowered vehicle. The unpowered vehicle is equipped with a gantry crane for loading and unloading and a reinforcement device for fixing the components. The reinforcement device includes a multi-layered frame, each layer of which is provided with a slider that can move on the frame crossbeam. A pivoting vertical beam on one side of the frame is a pivotable structure, capable of rotating and opening to a horizontal position and locking about its intersection with the crossbeam. The slider can extend and move onto the pivoting vertical beam that is opened to the horizontal position and locked.

[0013] According to one embodiment of the present invention, the gantry crane comprises a base a, a hydraulic motor, a telescopic beam, a column, a lifting point, a telescopic column, a telescopic hydraulic cylinder, a base b, and a lateral hydraulic cylinder; the base a is rotatably fixed on the unpowered vehicle and is driven to rotate by the hydraulic motor, which is hidden inside the base a; the telescopic hydraulic cylinder is hidden inside the telescopic column; the lateral hydraulic cylinder is located at the upper part of the gantry crane; when the lateral hydraulic cylinder extends, it drives the telescopic beam, the telescopic hydraulic cylinder, the telescopic column, the base b, and the lifting point to move horizontally together.

[0014] The beneficial effects of this invention are as follows:

[0015] Improving operational efficiency: By optimizing the turnout dismantling scheme and reducing on-site welding points, an innovative reinforcement device with automated loading and unloading functions was designed, which, in conjunction with the gantry crane, enables rapid and precise component handling. Simultaneously, multiple preparatory tasks were carried out concurrently, minimizing the time available during track maintenance windows and significantly improving turnout replacement efficiency.

[0016] Enhancing transportation safety: The slider of the reinforcement device can move horizontally within the frame, specifically on the frame beams. Under the lateral displacement compensation mechanism, it offsets the lateral stress on the turnout components when the vehicle curves, effectively preventing component deformation during transportation and ensuring transport quality. Furthermore, through the setting of the pivoting vertical beam, the coordinated work of the pivoting vertical beam and the slider eliminates the need for complex lateral insertion operations when loading and unloading components. The components are simply placed on the slider on the open vertical beam, and the slider automatically pushes and pulls them into place, greatly simplifying the operation of the gantry crane and improving operational safety and efficiency.

[0017] The installation of the balancing cable tie device further enhances the stability of the reinforcement device when the pivot vertical beam is opened. By locking the structure to the frame crossbeam, the frame itself bears the stress. Combined with the balancing cable tie device, the stability of the reinforcement device is guaranteed.

[0018] Improved on-site operational convenience: High-precision hoisting solutions are available: The improved gantry crane structure and operation process make its erection and retrieval more efficient and stable, ensuring the precise hoisting of large turnout components. Attached Figure Description

[0019] Figure 1 This is a disassembly diagram of the No. 18 high-speed turnout.

[0020] Figure 2 This is a schematic diagram of a high-speed turnout transport vehicle.

[0021] Figure 3 This is a flowchart of the high-speed turnout replacement process.

[0022] Figure 4 This is a schematic diagram of the erection and operation of an improved gantry crane.

[0023] Figure 5 This is a schematic diagram of the improved reinforcement device.

[0024] Figure 6 This is a structural schematic diagram of the improved reinforcement device and the balancing cable-stayed device.

[0025] Turnout components: 1: Straight main rail, 2: Switch rail, 3: Curved main rail, 4: Guard rail, 5: Wing rail, 6: Turnout point, I, II, III, IV: Turnout components.

[0026] High-speed turnout transport vehicle: 7: Powered vehicle, 8: Unpowered vehicle. Core equipment: 9: Gantry crane, 10: Reinforcing device, 11: Frame, 12: Sliding block, 13: Bolts / fixing device.

[0027] The gantry crane consists of the following components: 14: telescopic beam, 15: base a, 16: hydraulic motor, 17: telescopic hydraulic cylinder, 18: telescopic column, 19: base b, 20: lifting point, 21: column, 22: lateral hydraulic cylinder. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] A construction method for the overall replacement of high-speed railway turnouts, characterized by the following steps:

[0030] Turnout disassembly: The turnout to be replaced is disassembled into four components, from the first to the fourth, according to the preset on-site welding points; the first component includes a straight main rail 1, a switch rail 2, and a guard rail 4; the second component includes a curved main rail 3; the third component includes a portion of the straight main rail 1, a wing rail 5, and a turnout point 6; the fourth component includes a portion of the straight main rail 1, a switch rail 2, a curved main rail 3, and a guard rail 4.

[0031] Turnout transportation: The components are transported by a high-speed turnout transport vehicle consisting of a powered car 7 and at least one unpowered car 8; the unpowered car 8 is equipped with a gantry crane 9 for loading and unloading and a reinforcement device 10 for fixing the components.

[0032] On-site construction: The gantry crane 9 and the reinforcement device 10 work together to remove the old turnout components and install the new turnout components; the reinforcement device 10 includes a multi-layered frame 11, each layer of which is equipped with a slider 12 that can move on the frame crossbeam 112; the pivoting vertical beam 111 on one side of the frame 11 is a pivotable structure, capable of rotating and opening to a horizontal position and locking around its intersection with the crossbeam; the slider 12 can extend and move to the opened horizontal position and lock the pivoting vertical beam 111; the on-site construction steps specifically include:

[0033] Retrieve the old component: Open one side of the pivot beam 111 of one layer of the frame 11 to a horizontal position, move the slider 12 of the layer to the opened pivot beam 111; use the gantry crane 9 to lift the old turnout component and place it on the slider 12, then move the old turnout component into the frame beam 112 of the frame 11 of the layer through the slider 12, and finally restore the pivot beam 111 to the vertical position and lock it in place;

[0034] Inserting a new component: Open the pivot beam 111 of one layer of the frame 11 to a horizontal position, move the new turnout component from the position of the cross beam 112 of the frame layer to the opened pivot beam 111 using the slider 12, use the gantry crane 9 to lift the new turnout component away from the slider 12 and lay it to the predetermined position on the track, and finally restore the pivot beam 111 to the vertical position and lock it in place.

[0035] Process coordination: During on-site construction, the cutting of rails, the arrival of the railcar, the power outage of the overhead contact line, the loosening of the switch fasteners, and the preparation work for dismantling electrical equipment are carried out simultaneously.

[0036] The reinforcement device 10 also includes a set of balancing diagonal bracing devices to enhance the stability of the frame 11 when the pivotable vertical beam is opened; the balancing diagonal bracing devices include:

[0037] The cable 114 has one end connected to the body of the unpowered vehicle 8, and the other end, after passing over the top of the upward extension of the non-pivotable vertical beam, is connected to the upper right corner of the frame 11.

[0038] The frame pivot beam 111 is fixedly connected to the frame crossbeam 112 by a locking structure 113.

[0039] The gantry crane 9 consists of a base a15, a hydraulic motor 16, a telescopic beam 14, a column 21, a lifting point 20, a telescopic column 18, a telescopic hydraulic cylinder 17, a base b19, and a transverse hydraulic cylinder 22. Its erection process is as follows: after the hydraulic motor 16 drives the whole structure to rotate to a predetermined angle, the transverse hydraulic cylinder 22 extends to move the boom to a predetermined position, and finally the telescopic hydraulic cylinder 17 extends to lower the telescopic column 18 and form a support with the base b19.

[0040] The retraction process of the gantry crane 9 is as follows: first, the telescopic hydraulic cylinder 17 is retracted to retract the telescopic column 18 and the base b19; then, the lateral hydraulic cylinder 22 is retracted to retract the boom; and finally, the entire structure is rotated to the transport position by the hydraulic motor 16.

[0041] The on-site construction procedures are as follows: First, the preparation work such as cutting the rails, placing the railcar in place, de-energizing the overhead contact line, loosening the turnout fasteners, and dismantling the electrical equipment is completed simultaneously. Then, the fast turnout transport vehicle is parked at the adjacent line of the turnout switching location. After completing the steps of old rail removal, new rail removal, fixing the new rail, and initial track adjustment in sequence, the fast turnout transport vehicle carrying the old turnout components leaves the site.

[0042] This also includes, after the new rails are brought in, the following steps are completed in sequence: rough adjustment of geometric dimensions, fine adjustment, on-site welding, weld grinding, forced cooling, non-destructive testing, single-sided installation of the first HRS external line device, installation of the pull-down device, comprehensive rail inspection, turnout area grinding, single-sided installation and commissioning of the second HRS external line device, and finally, after inspection and confirmation and restoration of power supply, the line is opened.

[0043] The high-speed turnout transport vehicle consists of three unpowered vehicles, each approximately 25 meters long.

[0044] A high-speed turnout transport vehicle using the aforementioned construction method is characterized by comprising a powered vehicle 7 and at least one unpowered vehicle 8. The unpowered vehicle 8 is equipped with a gantry crane 9 for loading and unloading and a reinforcement device 10 for fixing the components. The reinforcement device 10 includes a multi-layered frame 11, each layer of which is provided with a slider 12 movable on a frame crossbeam 112. A pivoting vertical beam 111 on one side of the frame 11 is a pivotable structure, capable of rotating and opening to a horizontal position and locking about its intersection with the crossbeam. The slider 12 can extend and move onto the pivoting vertical beam 111 that is opened to the horizontal position and locked. The frame pivot beam 111 is fixedly connected to the frame crossbeam 112 by a locking structure 113.

[0045] The reinforcement device 10 also includes a set of balancing diagonal bracing devices to enhance the stability of the frame 11 when the pivotable vertical beam is opened; the balancing diagonal bracing devices include:

[0046] The cable 114 has one end connected to the body of the unpowered vehicle 8, and the other end, after passing over the top of the upward extension of the non-pivotable vertical beam, is connected to the upper right corner of the frame 11.

[0047] The frame pivot beam 111 is fixedly connected to the frame crossbeam 112 by a locking structure 113.

[0048] The gantry crane 9 consists of a base a15, a hydraulic motor 16, a telescopic beam 14, a column 21, a lifting point 20, a telescopic column 18, a telescopic hydraulic cylinder 17, a base b19, and a transverse hydraulic cylinder 22. The base a15 is rotatably fixed on the unpowered vehicle 8 and is driven to rotate by the hydraulic motor 16, which is hidden inside the base a15. The telescopic hydraulic cylinder 17 is hidden inside the telescopic column 18. The transverse hydraulic cylinder 22 is located at the upper part of the gantry crane. When the transverse hydraulic cylinder 22 extends, it drives the telescopic beam 14, the telescopic hydraulic cylinder 17, the telescopic column 18, the base b19, and the lifting point 20 to move horizontally together.

[0049] Specific implementation process:

[0050] After the order to replace turnout No. 18 is issued, turnout No. 18 is disassembled. Disassembly methods may include... Figure 1 Explanation: 1 is the straight main rail, 2 is the switch rail, 3 is the curved main rail, 4 is the guard rail, 5 is the wing rail, and 6 is the turnout point. Black dots B, C, and F are on-site welding points, while white dots A, E, G, D, and H are pre-assembly points. Based on these on-site welding points, the No. 18 turnout can be disassembled into four components: I, II, III, and IV. Component I includes the straight main rail 1, switch rail 2, and guard rail 4. Component 2 includes the curved main rail 3. Component 3 includes part of the straight main rail 1, wing rail 5, and turnout point 6. Component IV includes part of the straight main rail 1, switch rail 2, curved main rail 3, and guard rail 4.

[0051] Definition: On-site welding point, which is the location where the turnout needs to be welded on-site after it has been disassembled and transported to the installation site.

[0052] Pre-assembly point: The location where the turnout is assembled in the factory before leaving the factory.

[0053] Figure 5 The image shows a reinforcement device 10 on a non-powered vehicle. The reinforcement device consists of a frame 11 and a slider 12. The frame 11 is divided into three layers: upper, middle, and lower, allowing components I to IV to be stacked simultaneously, reducing the volume occupied. The slider 12 can move vertically along the extension direction of the rail on the frame 11, and the slider 12 is fixed to the rail by bolts 13. Figure 5 The image on the left shows a high-speed turnout transport vehicle traveling on a straight road. Figure 5 The right side shows the situation when the high-speed turnout transport vehicle passes through a curve. It can be seen that the two fixed devices are not on the same straight line. At this time, the slider 12 can be translated on the frame 11 to compensate for the lateral displacement caused by the curve and reduce or offset the deformation of components I~IV in the curve.

[0054] The disassembled components I-IV are placed on one side of the unpowered vehicle 8 and then hoisted onto the unpowered vehicle 8 using the gantry crane 9. The powered vehicle 7 and the unpowered vehicle 8 together form a rapid turnout transport vehicle, which is then transported to the turnout replacement site.

[0055] Figure 6 The diagram illustrates the structure of the improved reinforcement device and the balancing cable-stayed device. The reinforcement device 10 includes a multi-layered frame 11. Each layer of the frame 11 is equipped with a slider 12 that can move on the frame crossbeam 112. A pivotal vertical beam 111 on one side of the frame 11 is a pivotable structure that can rotate and open to a horizontal position and lock around its intersection with the crossbeam. The slider 12 can extend and move onto the pivotal vertical beam 111 that is opened to the horizontal position and locked. The frame pivot beam 111 is fixedly connected to the frame crossbeam 112 by a locking structure 113.

[0056] The reinforcement device 10 also includes a set of balancing diagonal bracing devices to enhance the stability of the frame 11 when the pivotable vertical beam is opened; the balancing diagonal bracing devices include:

[0057] The cable 114 has one end connected to the body of the unpowered vehicle 8, and the other end, after passing over the top of the upward extension of the non-pivotable vertical beam, is connected to the upper right corner of the frame 11.

[0058] The frame pivot beam 111 is fixedly connected to the frame crossbeam 112 by a locking structure 113.

[0059] The on-site construction steps specifically include:

[0060] Retrieve the old component: Open one side of the pivot beam 111 of one layer of the frame 11 to a horizontal position, move the slider 12 of the layer to the opened pivot beam 111; use the gantry crane 9 to lift the old turnout component and place it on the slider 12, then move the old turnout component into the frame beam 112 of the frame 11 of the layer through the slider 12, and finally restore the pivot beam 111 to the vertical position and lock it in place;

[0061] Inserting a new component: Open the pivot beam 111 of one layer of the frame 11 to a horizontal position, move the new turnout component from the position of the frame beam 112 of that layer to the opened pivot beam 111 using the slider 12, use the gantry crane 9 to lift the new turnout component away from the slider 12 and lay it to the predetermined position on the track, and finally restore the pivot beam 111 to the vertical position and lock it in place.

[0062] When the gantry crane 9 is retracted, the telescopic hydraulic cylinder 17 is retracted first, along with the telescopic column 18 and the base b19. Then, the lateral hydraulic cylinder 22 retracts, driving the telescopic hydraulic cylinder 17, the telescopic column 18, the base b19, and the lifting point 20 to retract as well. Finally, the hydraulic motor 16 rotates, driving the column 21, the telescopic measuring rod 14, the telescopic column 18, the base b19, the lifting point 20, the lateral hydraulic cylinder 22, and the telescopic hydraulic cylinder 17 back to the retracted position.

[0063] Upon arrival at the replacement site, the track laying process begins with the arrival of personnel and equipment. Simultaneously, the following steps are completed: cutting the rails, positioning the track vehicle, de-energizing the overhead contact system, loosening the turnout fasteners, and dismantling the electrical equipment. The rapid turnout transport vehicle is then parked on the adjacent track at the replacement point. After completing steps such as old rail removal, new rail installation, securing the new rail, and initial track adjustment, the rapid turnout transport vehicle can leave the site with the old rails. Simultaneously, on-site, the following steps are completed sequentially according to the drawings: rough adjustment of geometric dimensions, fine adjustment, welding, grinding, cooling, flaw detection, single-sided installation of the HRS external track device 1, installation of the pull-down device, comprehensive track inspection, turnout area grinding, single-sided installation of the HRS external track device 2, and commissioning. After inspection, confirmation, and power restoration, personnel leave by vehicle, and the line is finally opened. Using the turnout dismantling method in claim 1 and the rapid turnout transport vehicle in claim 2, and following the flowchart in claim 3, the overall time is calculated to be controllable within 360 minutes.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction method for the overall replacement of high-speed railway turnouts, characterized in that, Includes the following steps: Turnout disassembly: The turnout to be replaced is disassembled into four components, from the first to the fourth, according to the preset on-site welding points; the first component includes a straight main rail (1), a switch rail (2), and a guard rail (4); the second component includes a curved main rail (3); the third component includes a portion of the straight main rail (1), a wing rail (5), and a turnout point (6); the fourth component includes a portion of the straight main rail (1), a switch rail (2), a curved main rail (3), and a guard rail (4); Turnout transportation: The components are transported by a fast turnout transport vehicle consisting of a powered car (7) and at least one unpowered car (8); the unpowered car (8) is equipped with a gantry crane (9) for loading and unloading and a reinforcement device (10) for fixing the components. On-site construction: The gantry crane (9) and the reinforcement device (10) work together to remove the old turnout components and insert the new turnout components; the reinforcement device (10) includes a multi-layer frame (11), each layer of which is provided with a slider (12) that can move on the frame beam (112); the pivot vertical beam (111) on one side of the frame (11) is a pivotable structure that can be rotated to open to a horizontal position and locked around the intersection point of the beam and the crossbeam. The slider (12) can extend and move to the open horizontal position and lock onto the pivot vertical beam (111); the on-site construction steps specifically include: Retrieve the old component: Open one side of the pivot beam (111) of one layer of the frame (11) to the horizontal position, move the slider (12) of the layer to the opened pivot beam (111); use the gantry crane (9) to lift the old turnout component and place it on the slider (12), then move the old turnout component into the frame beam (112) of the frame (11) of the layer through the slider (12), and finally restore the pivot beam (111) to the vertical position and lock it in place; Inserting a new component: Open the pivot beam (111) of one layer of the frame (11) to a horizontal position, move the new turnout component from the position of the frame beam (112) of that layer to the opened pivot beam (111) by the slider (12), use the gantry crane (9) to lift the new turnout component away from the slider (12) and lay it to the predetermined position of the track, and finally restore the pivot beam (111) to the vertical position and lock it in place; Process coordination: During on-site construction, the cutting of rails, the arrival of the railcar, the power outage of the overhead contact line, the loosening of the switch fasteners, and the preparation work for dismantling electrical equipment are carried out simultaneously.

2. The construction method according to claim 1, characterized in that, The reinforcement device (10) further includes a set of balancing diagonal bracing devices to enhance the stability of the frame (11) when the pivotable vertical beam is opened; the balancing diagonal bracing devices include: The cable (114) is connected at one end to the body of the unpowered vehicle (8) and at the other end, after passing over the top of the upward extension of the non-pivotable vertical beam, to the upper right corner of the frame (11). The frame pivot beam (111) is fixedly connected to the frame crossbeam (112) by a locking structure (113).

3. The construction method according to claim 1, characterized in that, The gantry crane (9) consists of a base a (15), a hydraulic motor (16), a telescopic beam (14), a column (21), a lifting point (20), a telescopic column (18), a telescopic hydraulic cylinder (17), a base b (19), and a transverse hydraulic cylinder (22). Its erection process is as follows: after the hydraulic motor (16) drives the whole to rotate to a predetermined angle, the transverse hydraulic cylinder (22) extends to make the boom move to a predetermined position, and finally the telescopic hydraulic cylinder (17) extends to make the telescopic column (18) lower and be supported by the base b (19).

4. The construction method according to claim 3, characterized in that, The gantry crane (9) retraction process is as follows: first, the telescopic hydraulic cylinder (17) is retracted to retract the telescopic column (18) and base b (19), then the horizontal hydraulic cylinder (22) is retracted to retract the boom, and finally the whole is rotated to the transport position by the hydraulic motor (16).

5. The construction method according to claim 1, characterized in that, The on-site construction procedures are as follows: First, the preparation work such as cutting the rails, placing the railcar in place, de-energizing the overhead contact line, loosening the turnout fasteners, and dismantling the electrical equipment is completed simultaneously. Then, the fast turnout transport vehicle is parked at the adjacent line of the turnout switching location. After completing the steps of old rail removal, new rail removal, fixing the new rail, and initial track adjustment in sequence, the fast turnout transport vehicle carrying the old turnout components leaves the site.

6. The construction method according to claim 5, characterized in that, This also includes, after the new rails are brought in, the following steps are completed in sequence: rough adjustment of geometric dimensions, fine adjustment, on-site welding, weld grinding, forced cooling, non-destructive testing, single-sided installation of the first HRS external line device, installation of the pull-down device, comprehensive rail inspection, turnout area grinding, single-sided installation and commissioning of the second HRS external line device, and finally, after inspection and confirmation and restoration of power supply, the line is opened.

7. The construction method according to claim 1, characterized in that, The high-speed turnout transport vehicle consists of three unpowered vehicles (8), each with a length of approximately 25 meters.

8. A high-speed turnout transport vehicle employing the construction method described in any one of claims 1-7, characterized in that, The system includes a powered vehicle (7) and at least one unpowered vehicle (8), the unpowered vehicle (8) being equipped with a gantry crane (9) for loading and unloading and a reinforcement device (10) for fixing the components. The reinforcement device (10) includes a multi-layered frame (11), each layer of which is provided with a slider (12) movable on a frame beam (112). A pivot beam (111) on one side of the frame (11) is a pivotable structure, capable of rotating and opening to a horizontal position and locking about the intersection point of the beam and the crossbeam. The slider (12) can extend and move onto the pivot beam (111) which is opened to the horizontal position and locked. The frame pivot beam (111) is fixed to the frame beam (112) by a locking structure (113).

9. The high-speed turnout transport vehicle according to claim 8, characterized in that, The reinforcement device (10) further includes a set of balancing diagonal bracing devices to enhance the stability of the frame (11) when the pivotable vertical beam is opened; the balancing diagonal bracing devices include: The cable (114) is connected at one end to the body of the unpowered vehicle (8) and at the other end, after passing over the top of the upward extension of the non-pivotable vertical beam, to the upper right corner of the frame (11). The frame pivot beam (111) is fixedly connected to the frame crossbeam (112) by a locking structure (113).

10. The high-speed turnout transport vehicle according to claim 8, characterized in that, The gantry crane (9) consists of a base a (15), a hydraulic motor (16), a telescopic beam (14), a column (21), a lifting point (20), a telescopic column (18), a telescopic hydraulic cylinder (17), a base b (19), and a transverse hydraulic cylinder (22). The base a (15) is rotatably fixed on the unpowered vehicle (8) and is driven to rotate by the hydraulic motor (16). The hydraulic motor (16) is hidden inside the base a (15), the telescopic hydraulic cylinder (17) is hidden inside the telescopic column (18), and the transverse hydraulic cylinder (22) is located at the top of the gantry crane. When the transverse hydraulic cylinder (22) extends, it drives the telescopic beam (14), the telescopic hydraulic cylinder (17), the telescopic column (18), the base b (19), and the lifting point (20) to move together.

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