Magnetic levitation traffic track construction method

Abstract

The invention provides a construction method of a maglev traffic rail, which comprises the following steps: S1, modularly pouring and prefabricating a bridge deck in a factory, S2, mounting, adjusting and locking a maglev rail in the factory, S3, remeasuring the levelness and straightness of the maglev rail in a maglev rail assembly and the mounting precision of the maglev rail and an induction plate assembly to ensure that the maglev rail meets the dynamic matching requirement of a vehicle rail, and S4, mounting the bridge deck on a construction site. According to the construction method, modular pouring is mainly adopted to prefabricate the bridge deck slab, and the bridge deck slab is integrated with the shear nails, the iron cores and the pre-embedded sleeves; the method is simple in operation, high-precision, efficient and low-cost installation of the maglev traffic track is achieved, the construction efficiency is greatly improved, the cost of a medium-low-speed maglev track traffic system is reduced, and large-scale application and popularization are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway construction, and particularly relates to a construction method for a maglev transportation track. Background Technique

[0002] Under the background of the accelerating global urbanization process, the urban population scale has expanded rapidly, and the problem of traffic congestion has become increasingly serious. This not only brings great inconvenience to the daily travel of residents, but also has a negative impact on the economic development and environmental quality of the city. In this situation, developing a new type of rail transit system with high efficiency, environmental protection and strong adaptability has become a key measure to solve the urban traffic dilemma. In this regard, the medium and low speed maglev transportation system has received extensive attention in the rail transit planning of urban areas and tourist attractions due to its significant advantages such as low noise, low vibration, small turning radius and strong climbing ability, and has become one of the most potential development directions.

[0003] As the core infrastructure of the maglev transportation system, the performance of the track panel directly affects the running smoothness, safety and construction and operation costs of the entire system. Japan has a high level in the manufacturing process and quality control of track panels, and can produce track panels with high precision and high stability. Its connection and fixing technology is unique, ensuring seamless connection and overall stability; South Korea attaches importance to innovation and practicality, explores solutions suitable for its national conditions, and has research on the anti-corrosion and rust-proof treatment of track panels, improving durability; German track panels have a high reputation in the maglev field, with reliable quality and excellent performance, and the design and manufacturing fully consider the operating characteristics of trains; by optimizing the design and manufacturing process, improving electromagnetic and mechanical properties, and carrying out research on green manufacturing, energy consumption and pollution are reduced.

[0004] After years of research and practice in the field of medium and low speed maglev track panel technology in China, although remarkable achievements have been made, the key problem of cost control is still faced. The high raw material cost and complex manufacturing process have led to the high cost of track panels, seriously restricting the large-scale popularization and application of medium and low speed maglev transportation systems. In this regard, the following improved technical solutions are proposed. Summary of the Invention

[0005] The technical problem solved by the present invention: Provide a new type of maglev transportation track construction to solve the technical problem of how to achieve high-precision, high-efficiency and low-cost installation and construction of maglev transportation tracks.

[0006] The technical solution adopted by the present invention: A construction method for a maglev transportation track, comprising the following steps:

[0007] S1. Modular casting of precast bridge decks in the factory: The precast bridge decks to be cast are provided with shear studs, iron cores and embedded sleeves integrally cast therewith.

[0008] S2. Install and adjust the locked maglev rail in the factory: install and adjust the maglev rail in the maglev rail assembly at the bottom of the bridge deck, adjust the height and horizontality of the maglev rail, and then lock the position of the maglev rail.

[0009] S3. Re-measure the horizontality and straightness of the magnetic levitation rail in the magnetic levitation rail assembly and its installation accuracy with the induction plate assembly to ensure that it meets the dynamic matching requirements of the vehicle and the track.

[0010] S4. Install the bridge deck at the construction site: Install the bridge deck to the concrete bridge.

[0011] Further: it also includes step S5, installing the aluminum plate: using screws to install the aluminum plate on the upper end surface of the iron core to complete the assembly of the induction plate assembly.

[0012] Further: Step S1 includes the following steps:

[0013] S101. Before pouring, the shear nails in the induction plate assembly are pre-positioned vertically and welded to the iron core in the factory; the embedded sleeve is positioned and screwed to fit the positioning bolts pre-installed on the upper plate of the mold.

[0014] S102. Before pouring, turn the iron core upside down and make the shear nails of the iron core face vertically upward. Put the iron core into the lower mold and fix it. Put the steel cage into it and fix it.

[0015] S103, pouring concrete in the lower mold to the required thickness of the bridge deck, flipping and pressing the upper plate of the mold, so that the pre-embedded sleeve pre-installed on the upper plate of the mold is pressed vertically downward into the concrete, so that the pre-embedded sleeve is pre-embedded with the concrete as a whole.

[0016] S104, after the concrete solidifies, the mold is disassembled, the positioning bolts between the embedded sleeve and the upper plate of the mold are removed, and the formed bridge deck is taken out. The formed bridge deck has a shear force, an iron core and an embedded sleeve integrally cast therewith.

[0017] Further: step S2 comprises the following steps:

[0018] S201, pre-installed screws: After supporting the bridge deck, screw the upper end of the screw into each embedded sleeve of the bridge deck.

[0019] S202, pre-install the magnetic levitation rail: screw a thin nut into the lower end of the screw rod and place a washer thereon, then align the bolt hole of the magnetic levitation rail with the screw rod and insert it.

[0020] S203, adjusting the height of the maglev track: placing an adjustable support platform under the maglev track, measuring the distance between the induction plate assembly and the lower surface of the maglev track with a measuring tool to the required size, and then adaptively adjusting the adjustable support platform to stabilize the height and position of the maglev track and meet the size and position requirements.

[0021] S204. Position the maglev track: Rotate the thin nut to press the maglev track with the adjusted height position onto the upper surface of the adjustable support platform.

[0022] S205. Lock the maglev track: Install a washer at the lower end of the screw of the maglev track, then screw in the hexagon nut and tighten the hexagon nut. Apply torque to both the thin nut and the hexagon nut to complete the assembly of the maglev track, and then remove the adjustable support platform.

[0023] Furthermore: If it is found through remeasurement in step S3 that the straightness of a certain section of the maglev track exceeds the tolerance, it is corrected through the following steps:

[0024] S301. Loosen the hexagon nut and the thin nut in the corresponding section;

[0025] S302. Fine-tune the height of the adjustable support platform and readjust the height of the maglev track 2-1 it supports;

[0026] S303. Retighten the thin nut and the hexagon nut in sequence and remeasure until all indicators meet the standards.

[0027] Advantages of the present invention compared with the prior art:

[0028] 1. The construction method of the present invention mainly uses modular casting of precast bridge decks, and the bridge decks integrate shear studs, iron cores, and embedded sleeves; the operation is simple, achieving high-precision, high-efficiency, and low-cost installation of maglev transportation tracks, greatly improving the construction efficiency, facilitating the reduction of the cost of medium and low-speed maglev rail transit systems, and realizing large-scale popularization and application.

[0029] 2. The construction steps of the present invention for casting precast bridge decks in a factory with molds have high mold positioning accuracy, thus ensuring the matching accuracy between the bridge deck and the maglev track assembly and the induction plate assembly, while reducing the later assembly difficulty and simplifying the construction steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional view after the construction of the novel maglev transportation track of the present invention is completed;

[0031] Figure 2 is of the present invention Figure 1 front view;

[0032] Figure 3 is of the present invention Figure 2 I - part enlarged detail view;

[0033] Figure 4(a) is a three-dimensional view of the induction plate assembly of the present invention;

[0034] Figure 4(b) is the front view of Figure 4(a);

[0035] Figure 5 is the front view of the maglev track assembly of the present invention;

[0036] Figure 6 is the perspective view of the maglev track in the maglev track assembly of the present invention;

[0037] Figure 7 is the front perspective view of the preferred embodiment of the embedded sleeve of the present invention;

[0038] Figure 8 is Figure 7 the three-dimensional external shape view of the preferred embodiment of the embedded sleeve;

[0039] Figure 9(a) is the three-dimensional view of the cast bridge deck before the embedded sleeve is pressed in step S102;

[0040] Figure 9(b) is the three-dimensional view of the cast bridge deck after the embedded sleeve is pressed in step S103;

[0041] Figure 9(c) is the three-dimensional view of the maglev track installed and adjusted and locked in the factory in step S2;

[0042] Figure 10 is the flow chart of the construction method of the present invention;

[0043] In the figure: 1-concrete bridge, 1-1 embedded sleeve, 1-2 bridge deck; 2-maglev track assembly, 2-1 maglev track, 2-2 hexagon nut, 2-3 washer, 2-4 thin nut, 2-5 screw rod; 3-induction plate assembly, 3-1 iron core, 3-2 aluminum plate, 3-3 shear stud, 3-4 screw. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying Figures 1 - 10 drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] A maglev transportation track construction method includes the following steps:

[0046] S1. Modularly cast precast bridge deck 1-2 in the factory: The cast precast bridge deck 1-2 is provided with shear studs 3-3, iron cores 3-1 and embedded sleeves 1-1 integrally cast therewith.

[0047] Further: Step S1 includes the following steps:

[0048] S101. Before casting, vertically position and weld the shear studs 3-3 and the iron cores 3-1 in the induction plate assembly 3 into one body in the factory; position and rotate the embedded sleeve 1-1 to be properly pre-assembled on the positioning bolts on the upper plate of the mold.

[0049] S102. Before pouring, invert the iron core 3-1 and make the shear studs 3-3 of the iron core 3-1 face vertically upward. Place the iron core 3-1 into the lower die mold and fix it. Then place the steel reinforcement cage and fix it.

[0050] S103. Pour concrete in the lower die mold to the required thickness of the bridge deck 1-2. Flip and press down the upper plate of the mold, so that the embedded sleeves 1-1 pre-installed on the upper plate of the mold are pressed vertically downward into the concrete, and the embedded sleeves 1-1 are integrally embedded with the concrete.

[0051] S104. After the concrete solidifies, disassemble the mold. Remove the positioning bolts between the embedded sleeves 1-1 and the upper plate of the mold, and take out the formed bridge deck 1-2. The formed bridge deck 1-2 is integrally cast with the shear studs 3-3, the iron core 3-1 and the embedded sleeves 1-1.

[0052] It should be noted that: for the steps of modular casting and prefabricating the bridge deck 1-2 in the factory, by completing the modular casting and prefabricating of the bridge deck 1-2 in the factory, the standardization and automation of the production process are realized, and the production efficiency is significantly improved. At the same time, the quality control in the factory environment is more stringent, which can ensure the accuracy and consistency of the bridge deck 1-2, reduce on-site construction errors and improve the overall project quality.

[0053] For the steps of modular casting and prefabricating the bridge deck 1-2 in the factory, the integrated casting design of the bridge deck 1-2 with the shear studs 3-3, the iron core 3-1 and the embedded sleeves 1-1 enhances the integrity and stability of the structure. This design method can transfer and disperse loads more effectively, improve the bearing capacity and anti-fatigue performance of the bridge deck, and extend the service life.

[0054] For the steps of modular casting and prefabricating the bridge deck 1-2 in the factory, adopting the method of prefabricating the bridge deck 1-2 reduces the complexity and time cost of on-site construction. In the later stage, only the installation and connection work of the modular bridge deck 1-2 needs to be carried out on-site, which greatly simplifies the on-site construction process and difficulty and shortens the construction period. At the same time, the standardized production of the prefabricated bridge deck 1-2 is also convenient for transportation and storage, reducing the logistics cost.

[0055] For the steps of modular casting and prefabricating the bridge deck 1-2 in the factory, the integrated cast bridge deck 1-2 structure reduces the connection points and potential failure points, reducing the later maintenance cost and difficulty. At the same time, the quality controllability of the prefabricated bridge deck 1-2 also reduces the need for repair and replacement due to quality problems.

[0056] For the steps of modular casting and prefabricating the bridge deck 1-2 in the factory, it reduces on-site wet operations and dust pollution, meeting the concept of green construction. At the same time, the reusability of the prefabricated bridge deck 1-2 also reduces resource consumption and waste generation, with better environmental protection and sustainability.

[0057] In the factory, the prefabricated bridge deck 1-2 is cast in a modular manner. The screw 2-5 can independently adjust the vertical height (±10mm) and horizontality (±0.05°) of the magnetic levitation track 2-1 by rotating forward and reverse, which is 10 times more accurate than the traditional gasket adjustment. In addition, the embedded sleeve 1-1 is formed at one time during the concrete pouring, avoiding the process of secondary grouting of reserved holes in the traditional solution, and shortening the construction time of a single span.

[0058] S2. Install, adjust and lock the maglev track 2-1 in the factory: install and adjust the maglev track 2-1 in the maglev track assembly 2 at the bottom of the bridge deck 1-2, and lock the position of the maglev track 2-1 after adjusting the height and horizontality of the maglev track 2-1.

[0059] Further: step S2 comprises the following steps:

[0060] S201, pre-install the screw rod 2-5, after supporting the bridge deck 1-2, screw the upper end of the screw rod 2-5 into each embedded sleeve 1-1 of the bridge deck 1-2.

[0061] S202, pre-installing the magnetic levitation track 2-1: screwing the thin nut 2-4 into the lower end of the screw rod 2-5, placing the washer 2-3, and then aligning the bolt hole of the magnetic levitation track 2-1 with the screw rod 2-5 and inserting it.

[0062] S203, adjusting the height of the maglev track 2-1: placing an adjustable support platform under the maglev track 2-1, measuring the distance between the induction plate assembly 3 and the lower surface of the maglev track 2-1 with a measuring tool to the required size, and then adaptively adjusting the adjustable support platform to make the height and position of the maglev track 2-1 stable and meet the size and position requirements.

[0063] S204, positioning the magnetic levitation rail 2-1: rotating the thin nut 2-4 to press the magnetic levitation rail 2-1 with adjusted height onto the upper surface of the adjustable support platform.

[0064] S205, locking the magnetic levitation track 2-1: install the washer 2-3 at the lower end of the screw 2-5 of the magnetic levitation track 2-1, screw in the hexagonal nut 2-2 and tighten the hexagonal nut 2-2, apply torque to the thin nut 2-4 and the hexagonal nut 2-2 at the same time to complete the assembly of the magnetic levitation track 2-1, and withdraw the adjustable support platform.

[0065] It should be noted that the steps of installing and adjusting the locking maglev track 2-1 in the factory are to achieve millimeter-level height adjustment (error ≤±0.5mm) and horizontality control (tilt angle ≤0.05°) of the maglev track through the four-level adjustment system of embedded sleeve-screw-thin nut-hexagonal nut. The adjustable support platform is used as the intermediate reference, and the distance between the induction plate assembly 3 and the lower surface of the maglev track 2-1 is measured with a measuring tool to form a dual-reference calibration system to ensure that the installation accuracy of the maglev track 2-1 meets the design requirements and provide basic guarantee for the suspension stability of the train.

[0066] The step 2-1 of installing and adjusting the locking magnetic levitation rail in the factory, the double nut locking system composed of the thin nut 2-4 and the hexagonal nut 2-2 forms a self-locking effect through the preload force rectangle, which can resist the dynamic load generated by the train operation.

[0067] The factory installs and adjusts the locking magnetic levitation rail 2-1 step, and the factory pre-installation of the embedded sleeve 1-1 shortens the on-site installation time to 1 / 3 of the traditional method, significantly improving the construction efficiency. At the same time, the support platform can be adjusted for quick positioning.

[0068] The factory installs and adjusts the locking maglev track 2-1. The upper and lower double nut locking system allows the height of the maglev track to be fine-tuned (within the range of ±10mm) during operation without removing the track structure. When the track is displaced due to settlement or temperature changes, it can be quickly reset by loosening the hexagonal nut 2-2 and adjusting the thin nut 2-4. The maintenance efficiency is more than 5 times higher than the traditional welding fixing method.

[0069] The factory installs and adjusts the locking maglev track 2-1. The embedded sleeve 1-1 is used as a standardized interface, which is compatible with maglev track components of different specifications (such as medium and low speed maglev, high speed maglev, etc.), reducing the cost of track system upgrades. At the same time, the internal thread of the sleeve adopts standard specifications, which can be adapted to the mainstream adjustment screws in the market, reducing the types of spare parts inventory.

[0070] The factory installs and adjusts the locking magnetic levitation rail 2-1 steps, and the threaded connection of the embedded sleeve-screw, the axial compression of the thin nut, and the lateral locking of the hexagonal nut form a triple fixing system.

[0071] Therefore, the step 2-1 of installing and adjusting the locking magnetic levitation rail in the factory, the step S2 of the present invention can achieve high-precision assembly and stability control, the multi-stage adjustment mechanism ensures accuracy, the double-nut locking structure improves vibration resistance, and the construction is efficient and convenient for maintenance; modular prefabrication shortens the construction period, the reversible adjustment structure is easy to maintain, the structure has excellent adaptability, and is more economical. The embedded sleeve is a standardized structure that is compatible with magnetic levitation rail components of different specifications, thereby reducing production costs; the gasket's dispersed pressure and buffering effect reduce local stress concentration and extend equipment life; it is safer, more reliable and easier to maintain.

[0072] S3, re-measure the horizontality and straightness of the magnetic levitation track 2-1 in the magnetic levitation track assembly 2 and the installation accuracy with the induction plate assembly 3 to ensure that it meets the vehicle-rail dynamic matching requirements.

[0073] It should be noted that: horizontal adjustment ensures the stability of the train's suspension posture, straightness adjustment avoids running jitter or lateral force, and installation accuracy control ensures the consistency of electromagnetic suspension force. Dynamic matching requires retesting to simulate vibration, temperature deformation and other working conditions when the train is running at high speed to ensure that the accuracy still meets the design threshold under dynamic conditions.

[0074] Furthermore: If it is found during re-inspection in step S3 that the straightness of a certain section of the maglev track 2-1 is out of tolerance, it is corrected through the following steps:

[0075] S301. Loosen the hexagon nuts 2-2 and thin nuts 2-4 in the corresponding section;

[0076] S302. Fine-tune the height of the adjustable support platform and re-adjust the height of the maglev track 2-1 it supports;

[0077] S303. Re-tighten the thin nut 2-4 and hexagon nut 2-2 successively and re-inspect until all indicators meet the standards.

[0078] It should be noted that: The re-inspection from step S301 to step S302 and the installation of the bridge deck in S4 form a closed-loop quality control chain to ensure that the geometric accuracy (such as straightness and clearance) of the maglev track and the bridge deck meets the dynamic matching requirements, providing a basis for the suspension stability of the train.

[0079] S4. Install the bridge deck 1-2 at the construction site: Install the bridge deck 1-2 onto the concrete bridge 1.

[0080] Furthermore: It also includes step S5, installing the aluminum plate 3-2: Install the aluminum plate 3-2 on the upper end face of the iron core 3-1 using the screw 3-4 to complete the assembly of the induction plate assembly 3.

[0081] It should be noted that: Installing the aluminum plate 3-2 in the last step can avoid the problem of scratching the aluminum plate during the construction process. The screw 3-4 realizes the rigid connection between the aluminum plate and the iron core through pre-drilled holes (such as M8 threaded holes), avoiding the thermal stress concentration caused by welding. The aluminum plate 3-2 and the iron core 3-1 are connected by multiple M8 screws 3-4.

[0082] By installing the aluminum plate 3-2 in the last step, with the modular assembly scheme of the aluminum plate 3-2 + screw 3-4, the maglev system has achieved a performance breakthrough, coordinated lightweight design and high conductivity, improved suspension efficiency and energy efficiency, standardized interfaces and a rapid replacement and disassembly mechanism for the aluminum plate, reducing the life cycle cost.

[0083] It can be found through the above description that: The construction method of the present invention mainly uses modular casting of precast bridge decks, and the bridge decks integrate shear studs, iron cores, and embedded sleeves; it is simple to operate, realizes the high-precision, efficient, and low-cost installation of maglev transportation tracks, greatly improves the construction efficiency, is conducive to reducing the cost of medium and low-speed maglev rail transit systems, and realizes large-scale popularization and application.

[0084] The construction steps of the precast bridge deck with mold casting in the factory of the present invention have high mold positioning accuracy, thereby ensuring the matching accuracy between the bridge deck and the maglev track assembly and the induction plate assembly, while reducing the later assembly difficulty and simplifying the construction steps.

[0085] It should be understood that although this specification is described in accordance with one embodiment, it does not mean that this embodiment only contains an independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in this embodiment can also be appropriately arranged and combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A construction method for a maglev transportation track, characterized in that: The steps include: S1, modular casting prefabricated bridge deck (1-2) in the factory: the cast prefabricated bridge deck (1-2) has shear studs (3-3), iron core (3-1) and embedded sleeve (1-1) integrally cast therewith; S2. Installing and adjusting the locking magnetic levitation track (2-1) in the factory: installing and adjusting the magnetic levitation track (2-1) in the magnetic levitation track assembly (2) at the bottom of the bridge deck (1-2), adjusting the height and horizontality of the magnetic levitation track (2-1), and then locking the position of the magnetic levitation track (2-1); S3, re-testing the horizontality and straightness of the magnetic levitation rail (2-1) in the magnetic levitation rail assembly (2) and the installation accuracy with the induction plate assembly (3) to ensure that it meets the vehicle-rail dynamic matching requirements; S4. Installing the bridge deck (1-2) at the construction site: installing the bridge deck (1-2) on the concrete bridge (1).

2. The construction method according to claim 1, characterized in that, The method also includes step S5, installing the aluminum plate (3-2): using screws (3-4) to install the aluminum plate (3-2) on the upper end surface of the iron core (3-1), thereby completing the assembly of the induction plate assembly (3).

3. The construction method according to claim 1, characterized in that ,Step S1 includes the following steps: S101. Before pouring, the shear pins (3-3) in the induction plate assembly (3) are pre-positioned and welded to the iron core (3-1) in advance in the factory to form a whole; the embedded sleeve (1-1) is positioned and screwed to fit the positioning bolts pre-installed on the upper plate of the mold; S102, before pouring, invert the iron core (3-1), and make the shear nails (3-3) of the iron core (3-1) face vertically upward, put the iron core (3-1) into the lower mold and fix it, put the steel cage into it and fix it; S103, pouring concrete in the lower mold to the required thickness of the bridge deck (1-2), turning over and pressing the upper plate of the mold, so that the embedded sleeve (1-1) pre-installed on the upper plate of the mold is pressed vertically downward into the concrete, so that the embedded sleeve (1-1) is embedded in the concrete as a whole; S104, after the concrete solidifies, the mold is disassembled, the positioning bolts between the embedded sleeve (1-1) and the upper plate of the mold are removed, and the formed bridge deck (1-2) is taken out. The formed bridge deck (1-2) has shear nails (3-3) integrally cast with it, the iron core (3-1) and the embedded sleeve (1-1).

4. The construction method according to claim 1 or 2 or 3, characterized in that, Step S2 includes the following steps: S201, pre-installing the screw rod (2-5): after supporting the bridge deck (1-2), screwing the upper end of the screw rod (2-5) into each embedded sleeve (1-1) of the bridge deck (1-2); S202, pre-installing the magnetic levitation track (2-1): screwing a thin nut (2-4) into the lower end of the screw rod (2-5), placing a washer (2-3), and then aligning the bolt hole of the magnetic levitation track (2-1) with the screw rod (2-5) and inserting it; S203, adjusting the height of the magnetic levitation track (2-1): placing an adjustable support platform below the magnetic levitation track (2-1), measuring the distance between the induction plate assembly (3) and the lower surface of the magnetic levitation track (2-1) with a measuring tool until the distance reaches the required size, and then adaptively adjusting the adjustable support platform so that the height and position of the magnetic levitation track (2-1) are stable and meet the size and position requirements; S204. Position the maglev track (2-1): Rotate the thin nut (2-4) to press the maglev track (2-1) with the adjusted height position onto the upper surface of the adjustable support platform. S205. Lock the maglev track (2-1): After installing a washer (2-3) at the lower end of the screw (2-5) of the maglev track (2-1), screw in the hexagon nut (2-2) and tighten the hexagon nut (2-2). Apply torque to both the thin nut (2-4) and the hexagon nut (2-2) to complete the assembly of the maglev track (2-1), and then remove the adjustable support platform.

5. The construction method according to claim 4, wherein If during the recheck in step S3 it is found that the straightness of a certain section of the maglev track (2-1) is out of tolerance, correct it through the following steps: S301. Loosen the hexagon nut (2-2) and the thin nut (2-4) in the corresponding section. S302. Fine-tune the height of the adjustable support platform and readjust the height of the maglev track (2-1) it supports. S303. Re-tighten the thin nut (2-4) and the hexagon nut (2-2) in sequence and recheck until all indicators meet the standards.

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