A method for constructing a linear motor induction plate track bed

Abstract

This invention discloses a method for constructing a linear motor induction plate track bed, comprising the following steps: S1, track bed construction; S2, induction plate transportation and material handling; S3, coarse adjustment of induction plate laying; S4, fine adjustment of induction plate; S5, filling gaps in induction plates; S6, installing induction plate fasteners by screwing anchor bolts into pre-embedded sleeves; S7, re-measuring the elevation of the induction plate; S8, applying force and preventing loosening during induction plate installation. The beneficial effects of this invention are: it solves the problem of lacking professional measuring tools during induction plate installation, improves the construction process of induction plates, and increases operational accuracy, thereby achieving safe, fast, and efficient induction plate construction. It also establishes a standardized induction plate adjustment process, eliminating reliance on experience-based operations.

Description

Technical Field

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[0001] The present invention relates to the technical field of traffic track engineering, and in particular to a construction method for a linear motor induction plate roadbed. Background Art

[0002] The linear motor vehicle system is a new mode in the development of urban rail transit. The linear motor vehicle system is driven by a linear induction motor. Due to the advantages of the linear induction motor such as strong climbing ability, small turning radius, simple structure, light weight, small cross-sectional size, low noise, less maintenance, and fast deceleration, it has been widely used in urban transportation in countries such as Canada, the United States, Germany, and Japan. At present, several large cities in China are building or preparing to build urban rail transit, and the vehicles of the linear motor vehicle system are very suitable for the actual situation of some cities in China. The surface of the induction plate is fragile and easy to be damaged, and there is a lack of construction experience. The linear motor induction plate roadbed consists of rails, fasteners, precast sleepers, cast-in-place or precast concrete roadbeds, induction plates, induction plate fasteners, induction plate fastener relaxation sleeves, etc. As Figure 2 、 Figure 3 shown, the induction plate 3 is arranged at the center of the track, and the two sides of the induction plate 3 are tracks 4. The existing induction plates are usually positioned and adjusted by experience. During the fine adjustment and installation of the induction plate, workers use crowbars to move the induction plate manually. It requires a lot of manpower, the adjustment amount is not obvious, it is easy to damage the surface of the induction plate, the number of adjustments required is large, the adjustment accuracy is not high, it needs to be adjusted repeatedly, there is a lack of special tools for the elevation and adjustment of the induction plate, the measurement efficiency is low, and the situation of uneven surfaces of the induction plates often occurs. In severe cases, accidents are extremely likely to occur. Therefore, how to construct safely and efficiently during the construction process of the induction plate roadbed is a major technical problem in the construction process of the induction plate. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a construction method for a linear motor induction plate roadbed, which can improve the construction process of the induction plate and improve the operation accuracy, so as to safely, quickly, and efficiently complete the construction of the induction plate roadbed.

[0004] The purpose of the present invention is achieved by the following technical solutions: A construction method for a linear motor induction plate roadbed, which comprises the following steps:

[0005] S1. Roadbed construction, pouring to obtain a roadbed with a concrete strength of more than 5 Mpa;

[0006] S2. Induction plate transportation and material dispersion: Before installing the induction plate, it is necessary to detect the spacing of the sleepers of the laid roadbed to ensure that the position of the reserved holes meets the installation requirements of the induction plate, and clean the surface of the sleepers or precast slabs to prevent foreign objects from lifting the induction plate. Transport the induction plate to the construction operation surface in the interval, and disperse the induction plates to the roadbed one by one;

[0007] S3. Coarse Adjustment of Induction Plate Laying: Adjust and install the induction plate. Use induction plate fine adjustment equipment to coarsely adjust the vertical, horizontal and longitudinal positions of the induction plate. After the coarse adjustment is completed, the center line of the induction plate coincides with the center line of the track bed. Then, control the height of the coarsely adjusted induction plate. Select a reference point on the upper surface of the induction plate and mark it as Ai. Use the top surface of the rails on both sides of the induction plate as the reference surface. Add an adjustment piece at the corresponding position of the reference point Ai at the bottom of the induction plate. After adding the adjustment piece, the flatness of the upper surface of the induction plate is less than 5 mm / 1000 mm and the upper surface of the induction plate is lower than the reference surface. The thickness of the adjustment piece added to the reference point Ai is Xi, where i is the number of reference points, i≥4.

[0008] S4. Fine adjustment of the induction plate: After coarse adjustment, the elevation of the induction plate is precisely measured. The relative height difference between the reference point Ai on the upper surface of the induction plate and the reference surface is measured using a measuring tool with the top surface of the rails on both sides of the induction plate as the reference surface. The relative height difference of the reference point Ai is Yi. An adjustment piece with a thickness of Ni is added again at the corresponding position of the reference point at the bottom of the induction plate. Ni = X - Xi - Yi, where X is the design height of the reference point Ai.

[0009] S5. Filling gaps in the sensor plate: Fill the gaps in the position of the sensor plate fastener after fine adjustment. Add adjustment pieces to the position of the sensor plate fastener until there are no gaps.

[0010] S6. Install the sensor plate fasteners and screw the anchor bolts into the pre-embedded sleeves. Do not loosen the anchor bolts during installation.

[0011] S7. Remeasurement of the elevation of the induction plate: Using the top surface of the rails on both sides of the induction plate as the reference surface, the measuring tool is used to randomly remeasure the relative height difference Y between the reference point on the upper surface of the induction plate and the reference surface. If Y ≤ 2mm and the buckle plate under the induction plate is in place, it means that the elevation of the induction plate is qualified. If Y is greater than 2mm, loosen the fasteners around the reference point, use the induction plate fine adjustment equipment to lift this point, keep other positions unchanged, adjust the adjustment piece around the reference point under the induction plate until the relative height difference Y between the reference point and the reference surface is ≤ 2mm, and reinstall the induction plate fasteners.

[0012] S8. Applying torque and preventing loosening of the sensor plate: After the sensor plate fasteners are installed and the elevation measurement is correct, apply torque to the sensor plate anchor bolts to the design value.

[0013] Step S1 includes the following sub-steps:

[0014] S101. Before the construction of the integral track bed, establish the CPⅢ control network to determine the position of the entire track.

[0015] S102. Roughen the concrete of the track civil engineering foundation.

[0016] S103. After roughening, lay the precast track slabs and track panels according to the location of the track.

[0017] S104. After the rail panel is laid, install the rail support frame and install the sleeper spacing control fixture between the sleepers.

[0018] S105. Adjust the geometry of the track until it meets the design requirements;

[0019] S106. Bind the reinforcing steel mesh of the track bed and weld it to prevent slippage. At the same time, install the track bed formwork, fasteners and expansion joint formwork.

[0020] S107. Pour concrete until the concrete strength reaches 5 MPa or above, then remove the sleeper spacing control fixtures, formwork, and rail support frame to form the track bed.

[0021] The specific parts involved in this application are as follows: 1. Rails: 25m long U75V boltless 60kg / m I-beams are used, with performance indicators and dimensions meeting the requirements of "Rail Part 1: 43kg / m~75kg / m Rails" (TB / T 2344.1-2020). 2. Fasteners: Type III elastic clip separate fasteners are used for main lines and distribution lines; Type I elastic clip fasteners (pre-embedded sleeve type) are used in the ballast track sections of the depot; and Type I elastic clip separate fasteners are used in the depot. 3. Precast sleepers: Embedded concrete long sleepers are used for main lines and distribution lines, except in turnout areas. Number of sleepers: Except for turnout areas and special sections such as air-raid shelters, 1600 sleepers (pairs) / km are provided. For the section of the depot access line where 60kg / m rails are laid, 60kg / m rail concrete sleepers are used on the crushed stone track. For the section where 50kg / m rails are laid, 50kg / m rail concrete sleepers are used on the crushed stone track. In general, integral track sections within the depot, short reinforced concrete sleepers are used. In sections within the depot (excluding inspection pits) where induction slabs need to be installed, 50kg / m rail concrete sleepers are embedded in the track bed, with the sleeper type consistent with the external lines. 4. Cast-in-place or precast slab track: Long-sleeper embedded integral track is used in general sections and medium vibration-damping sections; trapezoidal sleepers are used in high vibration-damping sections; and liquid-damped precast steel spring floating slabs are used in special vibration-damping sections. Integral track is used on the depot tracks, while crushed stone track is used on the ground tracks of the depot access lines and the external tracks. 5. Induction Plates: Induction plates are installed on the sleepers of the track. Their track bed design structures are mainly divided into: underground line long-sleeper integral track bed, underground line trapezoidal sleeper track bed, underground line precast steel spring floating slab track bed, and surface line crushed stone track bed, etc. Precast concrete track bed slabs use embedded sleeve structures. In general track sections, the embedded sleeves used for installing induction plates are T-Φ30 type threaded reinforced PA66 sleeves. Induction plate models for mainline (60kg / m rail) include: 5-meter plate (A plate), 5-meter plate (AA plate), 2.5-meter plate (C plate), 2.5-meter plate (CC plate), 1.25-meter plate (G plate), and 1.25-meter plate (GG plate); induction plate models for mainline turnouts include: 5-meter plate (S plate), 2.5-meter plate (F plate), and 1.25-meter plate (J plate). The following are the models of induction plates for parking lots (for 50kg / m rails): 5-meter plate (B plate), 2.5-meter plate (D plate), 2.5-meter plate (M plate), 2.5-meter plate (P plate), and 1.25-meter plate (H plate); the following are the models of induction plates for turnouts: 5-meter plate (S plate), 2.5-meter plate (F plate), and 1.25-meter plate (K plate). 6. Induction Plate Fasteners: Two sets of induction plate fasteners must be installed symmetrically on the left and right sides of each induction plate in the same cross-section. Each set of induction plate fasteners consists of a pre-embedded sleeve, adjusting shims, insulating sheets, spring retainers, flat washers, anti-loosening washers, and anchor bolts.

[0022] The reference points are symmetrically arranged on both sides of the induction plate with the center line of the induction plate as the axis.

[0023] The sleeper spacing control fixture includes a base with a set of fixing holes for detecting sleeper spacing. The spacing between the fixing holes in the fixing hole set is the same as the sleeper spacing. During detection, the sleeper spacing is determined by comparing the distance between the fixing holes in the fixing hole set and the pre-embedded bolt holes of the sensing plate on the sleeper. When the sleeper spacing is correct, the base is fixed to the sleeper using fastening components, and the spacing of the next set of sleepers is adjusted sequentially. Adjacent bases are arranged alternately on the sleepers.

[0024] The measuring tool includes a first crossbeam and a measuring assembly. A first positioning assembly and a second positioning assembly are respectively provided at both ends of the first crossbeam. The measuring assembly includes a slide mounted on the first crossbeam for measuring the lateral distance of a measuring point on the induction plate, and a caliper mounted on the slide for measuring the vertical distance of the measuring point on the induction plate. The surface of the first crossbeam is provided with graduations for marking lateral distances. The probe of the caliper is arranged perpendicular to the induction plate and contacts the induction plate during measurement. This probe measures both lateral and vertical distances. The first positioning assembly is adjustable and consists of a first positioning plate, a first stop slidably mounted on the first positioning plate, and an elastic element installed between the first positioning plate and the first stop. The second positioning assembly consists of a second positioning plate and a second stop fixedly mounted on the second positioning plate. Limiting steps are formed between the first stop and the first positioning plate, and between the second stop and the second positioning plate, for positioning on the rails on both sides of the induction plate. These limiting steps ensure that the upper surface of the rails is always used as a reference during measurement.

[0025] The caliper is a digital caliper, a common type of digital display electronic device that is accurate to 0.01mm, provides clear readings, is highly responsive, and has a zeroing device. After setting any height as the zero point, moving the internal measuring scale will display a number on the digital screen indicating the height difference between the bottom of the measuring scale and the zero point. The caliper's probe can move vertically up and down perpendicular to the upper surface of the sensing plate, moving flexibly without obstruction.

[0026] The accuracy of the scale is 1mm. The scale is a set of numerical markings engraved on the upper surface of the first crossbeam, with the unit being mm. Every 1mm, a straight line with a quarter width of the first crossbeam is marked without a number. Every 10mm, a straight line with a half width of the first crossbeam is marked without a number. Every 100mm, a straight line marking spanning the first crossbeam is marked. Clear numerical markings of 100mm, 200mm, 300mm, etc. are also provided. When setting the scale, the center of the first crossbeam is taken as the origin (0mm), and the scale extends to the left and right, with the numbers gradually increasing.

[0027] The elastic element is a spring, with one end of the spring connected to the first positioning plate and the other end connected to the first stop.

[0028] The second crossbeam is provided with a first track for the sliding of the slide block, and the first positioning plate is provided with a second track for the sliding of the first stop block. The first track and the second track are arranged parallel to each other. It should be noted that there are many types of sliding pairs, and this application can use sliding pairs with existing means.

[0029] The second crossbeam has a rectangular cross-section, and the upper surface of the second crossbeam is the first track.

[0030] The bottom surfaces of the first stop and the second stop are flush.

[0031] Due to factors such as a track gauge error of 1435 (+2 to -1) mm, a mainline track gauge of 1435 mm, a widened track gauge of 1440 mm in the parking lot section, and a turnout track gauge of 1435 mm to 1445 mm, this application, in its design, aims to ensure stable mounting on the rails and normal operation at different track gauge positions. Therefore, this application adopts the concept of existing universal track gauges, installing two stops at the inner rail head position, one on the left and one on the right, connected by a second crossbeam. One stop is fixed to the second crossbeam and, during use, fits tightly against the inner rail head. The other stop is equipped with a spring return device, which can be stretched inwards towards the rail and, after the force is released, fits tightly against the inner rail head on its side. At this point, regardless of the track gauge, this application can be normally fixed on the rail and remain perpendicular to it.

[0032] As can be seen, the measuring tool in this application, through the positioning components set on both sides of the first crossbeam and the moving measuring components on the first crossbeam, realizes the measurement of the lateral and longitudinal distances of the sensing plate measuring points, meets the high-precision requirements of the sensing plate height installation, improves the accuracy of elevation control during the installation of the sensing plate, improves the construction quality, and reduces the risk of construction rectification.

[0033] The induction panel fine-tuning device includes a trolley that moves along a track, an adjustment assembly, and a lifting beam. The trolley has a first support beam and a second support beam. A hoisting area for mounting the adjustment assembly is provided between the first and second support beams. The adjustment assembly includes a second crossbeam, a screw jack, and a drive device for moving the second crossbeam. Linear slide rails are provided on both the first and second support beams. The second crossbeam is slidably mounted on the linear slide rails and drives the lifting beam to move laterally. The lifting beam is located below the second crossbeam. The screw jack is mounted on the second crossbeam, and its movable end is connected to the lifting beam, driving the lifting beam to move up and down. Lifting devices for lifting the induction panel are provided at both ends of the lifting beam.

[0034] The trolley is equipped with wheelsets that match the track, which uses existing standard gauge steel rails. The trolley is equipped with a push rod and has a hands-free braking mechanism. When force is applied to the push rod, the tool can move freely forward and backward, driving the sensor plate to move longitudinally. When the push rod is not under force, the wheels lock and cannot move. The trolley travels on the steel rail, with the longitudinal direction of the rail as the trolley's longitudinal axis and the direction perpendicular to the rail as the lateral axis. It should be noted that the trolley can also be driven and braked automatically using existing methods, which will not be detailed here.

[0035] The first and second support beams are arranged parallel to each other, which facilitates the installation and manufacturing of the support beams. Preferably, both the first and second support beams are higher than the wheelset of the trolley, so that there is enough space in the lifting area for adjustment operations.

[0036] The linear slide rails on the first support beam and the second support beam are parallel to each other and perpendicular to the track. The suspension beam is arranged parallel to the track. The direction of the linear slide rail represents the direction of lateral movement of the sensing plate, the direction of the track represents the direction of longitudinal movement of the sensing plate, and the direction of movement of the moving end of the bolt lift represents the direction of vertical movement of the sensing plate. The perpendicular arrangement facilitates precise position adjustment.

[0037] Preferably, the linear slide rails on the first and second support beams have the same stroke, which facilitates the control and manufacturing of the second crossbeam's stroke. It should be noted that the strokes of the linear slide rails on the first and second support beams are not less than the operating stroke of the drive device.

[0038] The second crossbeam has sliders at both ends that match the linear slide rail. The slide rail sliders can adopt common structural forms, such as dovetail groove slide rail sliders, T-slot slide rail sliders, etc., as long as the movement is stable. They will not be described in detail here.

[0039] The second crossbeam and the lifting beam are also equipped with a guiding device, which consists of guide columns symmetrically arranged on both sides of the screw jack and guide seats slidably installed on the guide columns. The lower end of the guide column is fixed on the lifting beam, and the guide seat is installed on the second crossbeam.

[0040] The length of the lifting beam is greater than the length of the second crossbeam and the lifting beam extends beyond the lifting area, and the extended area facilitates the lifting and removal of the induction plate.

[0041] The fixed end of the drive device is mounted on the trolley, and the movable end of the drive device is connected to the second crossbeam. It should be noted that the drive device can be a cylinder, hydraulic cylinder, or motor that directly performs the telescopic movement, thereby driving the second crossbeam to move. Alternatively, it can be a motor equipped with a transmission mechanism for transmission; this method is quite common and will not be elaborated upon here.

[0042] As can be seen, this application allows for normal operation on the track, offering excellent convenience. It also enables the stable lifting of the induction plate and facilitates convenient longitudinal, lateral, and vertical movement of the induction plate relative to the track (rail), meeting the requirements for repositioning the induction plate during construction and demonstrating good practicality. Through this application, the relative position of the induction plate to the rail surface can be adjusted conveniently, quickly, and safely in the longitudinal, lateral, and vertical directions, ultimately achieving fine-tuning of the induction plate.

[0043] The induction panel is lifted and lowered using a screw jack. The lifted panel moves laterally along a linear guide rail, and the trolley moves longitudinally via manual or motor-controlled movement. A worker can operate the jack by standing and turning its wheel, suspending the panel in the air; a single person can operate it; a single person can smoothly move the panel laterally along the linear guide rail; and a single person can also push it along the rails. In actual construction, a team of 2-3 people is sufficient for fine-tuning the induction panel.

[0044] As can be seen, the induction plate fine-tuning equipment in this application adds two support beams to the track trolley and sets linear guide rails on the support beams, forming a hoisting area between the two support beams. Adjustment components are installed in this area. Through the vertical movement of the screw jack, the lateral movement of the linear guide rail, and the longitudinal movement of the entire trolley, the induction plate can move longitudinally, laterally, and vertically relative to the track (steel rail), meeting the requirements for moving the position of the induction plate during construction, simplifying the induction plate adjustment construction process, solving the problems of long construction cycle, large labor input, insignificant momentum, repeated adjustments, and easy surface damage during induction plate fine-tuning, and improving construction quality.

[0045] The beneficial effects of the present invention are: (1) The induction plate fine adjustment equipment is used to perform coarse and fine adjustment of the induction plate, and at the same time, a special measuring tool is used to measure the relative height difference of the induction plate relative to the reference surface, which solves the problem of lack of professional measuring tools in the installation process of the induction plate; (2) In the process of adjusting the induction plate, the relative height difference is used to determine the addition method and amount of the adjustment piece, which improves the construction process of the induction plate and improves the operation accuracy, thereby achieving safe, fast and efficient induction plate construction, and establishing a standard induction plate adjustment operation process, no longer relying on experience operation. Attached Figure Description

[0046] Figure 1 This is a flowchart illustrating the construction process of the present invention.

[0047] Figure 2 This is a planar schematic diagram showing the position of the sensing plate in this invention;

[0048] Figure 3 This is a side view of the location of the sensing plate in this invention;

[0049] Figure 4 This is a schematic diagram of the installation of the induction plate fastener and anchor bolts of the present invention;

[0050] Figure 5 This is a schematic diagram of the installation of the sleeper spacing control fixture of the present invention;

[0051] Figure 6 This is a schematic diagram of the measuring tool of the present invention;

[0052] Figure 7 This is a side view of the measuring tool of the present invention;

[0053] Figure 8 This is a schematic diagram of the installation of the first positioning component in the measuring tool of the present invention;

[0054] Figure 9 This is a schematic diagram of the installation of the second positioning component in the measuring tool of the present invention;

[0055] Figure 10 This is a schematic diagram of the structure of the first positioning component in the measuring tool of the present invention;

[0056] Figure 11 This is a schematic diagram of the upper surface of the first crossbeam in the measuring tool of the present invention;

[0057] Figure 12 This is a schematic diagram showing the installation of the first positioning plate and the first stop block in the measuring tool of the present invention;

[0058] Figure 13 This is a schematic diagram of the induction plate fine-tuning device of the present invention;

[0059] Figure 14 This is a side view of the induction plate fine-tuning device of the present invention;

[0060] Figure 15 This is a front view of the induction plate fine-tuning device of the present invention;

[0061] Figure 16 This is a schematic diagram of the installation of the driving device in the induction plate fine-tuning equipment of the present invention.

[0062] In the diagram, 1-1, base; 1-2, fixing hole group; 2-1, first crossbeam; 2-2, measuring component; 3, sensing plate; 2-11, first positioning component; 2-12, second positioning component; 2-13, scale; 2-14, first track; 2-15, limiting step; 2-21, slide; 2-22, caliper; 2-111, first positioning plate; 2-112, first stop; 2-113, elastic element; 2-114, second track; 2-121, second positioning plate; 2-122, second stop; 4, track; 3-2, trolley; 3- 3. Adjustment components; 3-4. Lifting beam; 3-6. Guiding device; 3-201. First support beam; 3-202. Second support beam; 3-203. Lifting area; 3-204. Linear slide rail; 3-205. Push rod; 3-206. Wheel; 3-301. Second crossbeam; 3. 302. Screw jack; 3-303. Telescopic motor; 3-401. Lifting tool; 3-601. Guide column; 3-602. Guide seat; 4-1. Insulating sheet; 4-2. Spring retainer; 4-3. Flat washer; 4-4. Anchor bolt; 4-5. Embedded sleeve. Detailed Implementation

[0063] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0064] like Figure 1 As shown, a method for constructing a linear motor induction plate track bed includes the following steps:

[0065] S1. Track bed construction: pouring concrete to obtain a track bed with a strength of 5 MPa or higher.

[0066] S2. Transportation and Distribution of Induction Panels: Using a crane, the induction panels stored on the ground are lifted onto a railcar in the track area. The railcar then transports the panels to the work surface within the section. Based on the panel lengths (5 meters, 2.5 meters, 1.25 meters, etc.) and sleeper spacing, the induction panels are roughly distributed in position. The railcar is then removed from the track area. During distribution, specialized induction panel lifting equipment installed on the railcar is used to lift the panels, distributing them one by one to the center of the track bed.

[0067] S3. Coarse Adjustment of Induction Plate Laying: Adjust and install the induction plates. Use induction plate fine adjustment equipment to coarsely adjust the vertical, horizontal, and longitudinal positions of the induction plates. After the coarse adjustment is completed, the center line of the induction plate coincides with the center line of the track bed. Then, control the height of the induction plate after coarse adjustment. Select a reference point on the upper surface of the induction plate and mark it as Ai. Use the top surface of the rails on both sides of the induction plate as the reference surface. Add adjustment pieces at the corresponding positions of reference point Ai at the bottom of the induction plate. After adding the adjustment pieces, the flatness of the upper surface of the induction plate is less than 5 mm / 1000 mm and the upper surface of the induction plate is lower than the reference surface (flatness can be checked with existing tools). The thickness of the adjustment piece added to reference point Ai is Xi, where i is the number of reference points, i≥4. The selection of reference points can be based on the left front side → right front side → left middle side → right middle side → left rear side → right rear side of the induction plate. There are no design requirements for the measurement sequence, but in actual construction, following the construction direction from front to back and from left to right will improve construction efficiency and reduce the risk of repeated construction.

[0068] S4. Fine adjustment of the induction plate: After coarse adjustment, the elevation of the induction plate is precisely measured. The relative height difference between the reference point Ai on the upper surface of the induction plate and the reference surface is measured using a measuring tool with the top surface of the rails on both sides of the induction plate as the reference surface. The relative height difference of the reference point Ai is Yi. An adjustment piece with a thickness of Ni is added again at the corresponding position of the reference point at the bottom of the induction plate. Ni = X - Xi - Yi, where X is the design height of the reference point Ai.

[0069] S5. Filling gaps in the sensor plate: Fill the gaps in the position of the sensor plate fastener after fine adjustment. Add adjustment pieces to the position of the sensor plate fastener until there are no gaps.

[0070] S6. Install the sensor panel fasteners by screwing the anchor bolts into the pre-embedded sleeves. Do not loosen the anchor bolts during installation. Figure 4 As shown, during installation, according to the induction plate fastener installation structure, the insulating sheet 4-1, spring retainer 4-2, flat washer 4-3, etc., are installed in sequence. Then, the anchor bolt 4-4 is screwed into the pre-embedded sleeve 4-5. Initial tightening is performed, but no additional torque is applied to the design value. The induction plate fastener structure is an existing structure, and its connection relationships are not described in detail here.

[0071] S7. Remeasurement of the elevation of the induction plate: Using the top surface of the rails on both sides of the induction plate as the reference surface, the measuring tool is used to randomly remeasure the relative height difference Y between the reference point on the upper surface of the induction plate and the reference surface. If Y ≤ 2mm and the buckle plate under the induction plate is in place, it means that the elevation of the induction plate is qualified. If Y is greater than 2mm, loosen the fasteners around the reference point, use the induction plate fine adjustment equipment to lift this point, keep other positions unchanged, adjust the adjustment piece around the reference point under the induction plate until the relative height difference Y between the reference point and the reference surface is ≤ 2mm, and reinstall the induction plate fasteners.

[0072] S8. Applying torque and installing anti-loosening sleeves to the induction plate: After the induction plate fasteners are installed and the elevation measurement is correct, apply torque to the induction plate anchor bolts to the design value. Use a torque wrench with the torque set to 220 N·m. Tighten the anchor bolts with the torque wrench; when the wrench makes a "clang" sound, it indicates that the torque of the anchor bolts has reached the design torque value of 220 N·m. After the torque meets the design requirements, install the anti-loosening sleeve. Align the anti-loosening sleeve with the top of the anchor bolt and insert it. Then, engage the teeth on both sides of the anti-loosening sleeve under the spring retainer to maintain stability and prevent the anchor bolts from rotating.

[0073] In this embodiment, during the coarse adjustment of the induction plate in step S3, four reference points A1, A2, A3, and A4 are selected on the induction plate. Under the premise that the flatness of the upper surface of the induction plate is less than 5 mm / 1000 mm and the upper surface of the induction plate is lower than the reference surface, adjustment pieces are added to the four reference points for the first time. The thicknesses of the adjustment pieces are X1, X2, X3, and X4, respectively. In step S4, taking reference point A1 as an example, the design height of point A1 is 13 mm. During the coarse adjustment, the thickness of the adjustment piece X1 added for the first time is 5 mm. The relative height difference Y1 between reference point A1 on the upper surface of the induction plate and the reference surface is measured using a measuring tool with the top surface of the steel rails on both sides of the induction plate as the reference surface. The result is 5 mm. Then, an adjustment piece with a thickness of N1 is added for the second time. N1 = X - X1 - Y1 = 3 mm. The other reference points are similar.

[0074] Step S1 includes the following sub-steps:

[0075] S101. Before the construction of the integral track bed, establish the CPⅢ control network to determine the position of the entire track.

[0076] S102. Roughen the concrete of the track civil engineering foundation.

[0077] S103. After roughening, lay the precast track slabs and track panels according to the location of the track.

[0078] S104. After the rail panel is laid, install the rail support frame and install the sleeper spacing control fixture between the sleepers.

[0079] S105. Adjust the geometry of the track until it meets the design requirements;

[0080] S106. Tie the reinforcing steel mesh of the track bed and weld it to prevent slippage, and at the same time install the track bed formwork and expansion joint formwork;

[0081] S107. Pour concrete until the concrete strength reaches 5 MPa or above, then remove the sleeper spacing control fixtures, formwork, and rail support frame to form the track bed.

[0082] like Figure 5As shown, the sleeper spacing control fixture includes a base 1-1, on which a group of fixing holes 1-2 for detecting sleeper spacing is provided. The spacing between the fixing holes in the group of fixing holes 1-2 is the same as the sleeper spacing. During detection, the sleeper spacing is determined by comparing the distance between the fixing holes in the group of fixing holes 1-2 and the pre-embedded bolt holes of the sensing plate on the sleeper. When the sleeper spacing is correct, the base 1-1 is fixed to the sleeper using fastening components, and the spacing of the next group of sleepers is adjusted sequentially. Adjacent bases 1-1 are staggered on the sleepers. The base 1-1 can be made of channel steel.

[0083] In this embodiment, step S101 involves establishing a CPⅢ control network before the overall track bed construction to control the absolute position of the entire track. During the overall track bed construction, the concrete foundation of the civil engineering foundation is roughened to improve the bonding performance between the old and new concrete. The track laying construction involves erecting the running rails of the track laying machine and installing the machine. Construction technicians design the track section schedule in advance, and the sleepers are distributed according to the schedule when assembling the track panels. When assembling long sleeper track panels, φ30 bolts are used to connect the sleeper spacing control channel steel of the sleeper spacing control fixture to the pre-embedded bolt holes of the induction plate on the sleeper. During track panel assembly, the sleeper spacing is adjusted to ensure that the sleeper spacing control fixture can be connected to the pre-embedded bolt holes of the induction plate on the sleeper. One set is installed at each gap, staggered. During track panel erection, the sleeper spacing control fixture is installed at the track panel connection points. When erecting the track panel, the matching steel bolts (with PVC pipes) of the rail support frame are screwed in to lift the track panel, ensuring that all bolts are tightened securely. After the track panels are erected, sleeper spacing measuring tools are used to measure the sleepers of the connected track according to the sensor plate layout plan designed on the track section table, plate by plate, to ensure that the installation error is within the design range. Existing equipment is used for sleeper spacing measuring tools, which will not be described in detail here. After the track panels are erected and the sleeper spacing is measured to meet the design requirements, the track geometry is coarsely, finely, and precisely adjusted according to the design and specification requirements using the CPⅢ control network and track inspection trolley. Afterwards, the reinforcing mesh of the track bed is tied and anti-lamination welding is carried out, the track bed formwork and expansion joint formwork are installed, and then the concealed works are inspected. Finally, when the concrete is transported to the construction site using a hopper, a small gantry crane is used to lift the concrete to the construction section for concrete pouring. Before the initial setting of the track bed concrete, the surface layer and drainage ditches are promptly smoothed, and the mortar on the surfaces of the rails, sleepers, fasteners, and support frames is cleaned. After the concrete has finally set, it is cured by laying geotextile fabric, keeping the concrete in a moist state. Once the concrete strength reaches 5 MPa or higher, remove the sleeper spacing control fixtures, formwork, and rail support frame.

[0084] The reference points are symmetrically arranged on both sides of the induction plate with the center line of the induction plate as the axis.

[0085] like Figures 6-10As shown, the measuring tool includes a first crossbeam 2-1 and a measuring component 2-2. A first positioning component 2-11 and a second positioning component 2-12 are respectively provided at both ends of the first crossbeam 2-1. The measuring component 2-2 includes a slide block 2-21 slidably mounted on the first crossbeam 2-1 for measuring the lateral distance of the sensing plate measuring points, and a caliper 2-22 mounted on the slide block 2-21 for measuring the vertical distance of the sensing plate measuring points. Figure 11 As shown, the surface of the first crossbeam 2-1 is provided with a scale 2-13 for marking the lateral distance. The probe of the caliper 2-22 is arranged perpendicular to the sensing plate. During measurement, the probe contacts the sensing plate 3. The probe is both a lateral distance measuring probe and a vertical distance measuring probe. The first positioning component 2-11 is an adjustable component. The first positioning component 2-11 consists of a first positioning plate 2-111, a first stop block 2-112 slidably mounted on the first positioning plate 2-111, and an elastic element 2-113 installed between the first positioning plate 2-111 and the first stop block 2-112. The second positioning component 2-12 consists of a second positioning plate 2-121 and a second stop block 2-122 fixedly mounted on the second positioning plate 2-121. Limiting steps 2-15 are formed between the first stop block 2-112 and the first positioning plate 2-111, and between the second stop block 2-122 and the second positioning plate 2-121, for positioning on the rails on both sides of the sensing plate 3.

[0086] The first crossbeam 2-1 uses an aluminum alloy bracket with a length of 1600mm, a width of 30mm, and a height of 35mm, connecting the middle sliding measuring structure and the rail top bases at both ends, making the entire device a whole and easy to carry and place during use.

[0087] The first positioning plate 2-111 and the second positioning plate 2-121 are arranged on the left and right sides of the first crossbeam 2-1. The first stop block 2-112 is slidably mounted on the first positioning plate 2-111. The first positioning plate 2-111 is slightly longer than the second positioning plate 2-121. In this embodiment, the dimensions of the first positioning plate 2-111 are 130mm long, 30mm wide, and 25mm high, and the dimensions of the second positioning plate 2-121 are 110mm long, 30mm wide, and 25mm high. Both the first positioning plate 2-111 and the second positioning plate 2-121 are made of aluminum alloy, which connects the upper and lower structures of the tool and raises the first crossbeam 2-1. Since the surface of the sensing plate 3 is higher than the rail surface, this structure is designed to ensure that the tool is always higher than the sensing plate 3 when mounted on the rail, thus meeting the usage requirements.

[0088] The first stop block 2-112 is an aluminum alloy stop block with a length of 35mm, a width of 30mm, and a height of 15mm. The elastic element 2-113 is a spring. One end of the spring is connected to the first positioning plate 2-111, and the other end is connected to the first stop block 2-112. During measurement, when the track gauge changes, the elastic element 2-113 is under tension, and the tool is always in contact with the inner side of the rail head. When not measuring, the elastic element 2-113 can drive the first stop block 2-112 to automatically spring back to the outermost side of the first crossbeam 2-1.

[0089] The second stop 2-122 is an aluminum alloy stop 35mm long, 30mm wide and 15mm high, which is fixed together with the second positioning plate 2-121. When in use, this stop is placed on the inside of the rail as a base, and the first stop 2-112 on the other side is moved to adjust its position so that the tool is perpendicular to the longitudinal direction of the rail.

[0090] The first crossbeam 2-1 is provided with a first track 2-14 for sliding the slide block 2-21, and the first positioning plate 2-111 is provided with a second track 2-114 for sliding the first stop block 2-112. The first track 2-14 and the second track 2-114 are arranged parallel to each other. In this embodiment, as shown... Figure 12 As shown, the second track 2-114 is disposed in the first positioning plate 2-111, and a T-shaped block that slides on the second track 2-114 is disposed on the first stop block 2-112. An elastic element 2-113 is disposed between the first stop block 2-112 and the first positioning plate 2-111. The slide block 2-21 is a hollow structure with external dimensions of 100mm in length, 45mm in width, and 55mm in height. It can be embedded in the first crossbeam 2-1 and can slide freely along the first crossbeam 2-1, driving the caliper 2-22 to slide freely on the first crossbeam 2-1 smoothly without jamming. Since the slide block 2-21 is installed on the first crossbeam 2-1 in an inner sleeve manner, and the cross section of the first crossbeam 2-1 is rectangular, preferably, for ease of operation, the upper surface of the first crossbeam 2-1 is provided with a scale 2-13. The upper surface of the first crossbeam 2-1 serves as the track surface of the first track 2-14, allowing for back-and-forth lateral movement along the first track 2-14.

[0091] The bottom surfaces of the first stop block 2-112 and the second stop block 2-122 are flush.

[0092] The standard height of the sensing plate 3 is 15mm above the rail surface, with an error of +1mm to -2mm. If the first crossbeam 2-1 is in direct contact with the rail, only negative errors can be measured. Due to the increase in height by 35mm (the height of the first stop block 2-112 and the first positioning plate 2-111), the standard measuring range of the tool is now -15mm to +20mm, which meets the measurement requirements.

[0093] After ensuring the perpendicularity of this application to the rail is properly controlled, since the center of the induction plate 3 needs to coincide with the center of the track, and the panel size of the induction plate 3 is uniformly 360mm, the horizontal distance markings on scale 2-13 are used to locate the centerline of the induction plate. When measuring the elevation of the induction plate, three points need to be measured on the same cross-section: the left, middle, and right sides. The measurement points must be 80-100mm away from the centerline on the left and right sides. During measurement, move the slide block 2-21 to align with the horizontal distance markings to accurately determine the three measuring points.

[0094] Meanwhile, this application draws on the concept of existing digital display vernier calipers compared to existing construction methods. A digital display electronic caliper is installed on the slide 2-21. When the measuring scale moves down to the top surface of the contact sensor plate, the data can be read immediately on the display screen, and the degree of 0.01mm can be displayed.

[0095] This tool is lightweight, portable, and easy to use. Made from aluminum alloy and PVC, it minimizes the use of internal steel and other materials, resulting in an overall weight of less than 3kg. It is inexpensive and has low manufacturing costs.

[0096] In use, after placing this application perpendicular to the rail (the first crossbeam 2-1 is secured to the rails on both sides by the limiting step 2-15), move the slide 2-21 laterally along the first crossbeam 2-1 and observe the corresponding degree on the scale 2-13. Take one measurement at the 100mm position on the left, one measurement at the 0mm position, and one measurement at the 100mm position on the right, and record them respectively. For longitudinal measurement, fix the lower end point (measuring point) of the caliper 2-22 at a position 15mm above the rail surface, and zero the caliper 2-22. The numerical degree displayed on the caliper 2-22 at this time is the difference between this position and the design elevation of the induction plate 3 (15mm above the rail surface). A positive value indicates that the induction plate is higher than the design elevation, and a negative value indicates that the induction plate is lower than the design elevation. Then, perform the measuring point measurement. After locating the measuring point according to the above method for determining the measuring point of the induction plate, move the sliding block 2-21 directly above the measuring point, and move the caliper 2-22 vertically so that the caliper 2-22 contacts the top surface of the induction plate 3. At this time, the error value of the elevation of the induction plate can be directly seen on the display screen of the caliper 22, with the unit being 0.01mm.

[0097] like Figures 13-15As shown, the induction plate fine-tuning device includes a trolley 3-2 that moves along track 4, an adjustment assembly 3-3, and a lifting beam 3-4. A first support beam 3-201 and a second support beam 3-202 are provided on the trolley 3-2. A lifting area 3-203 for installing the adjustment assembly 3-3 is provided between the first support beam 3-201 and the second support beam 3-202. The adjustment assembly 3-3 includes a first crossbeam 3-301, a screw jack 3-302, and a drive device for moving the first crossbeam 3-301. Linear slide rails 3-204 are provided on both beam 3-201 and the second support beam 3-202. The first crossbeam 3-301 is slidably installed on the linear slide rails 3-204 and drives the hanging beam 3-4 to move laterally. The hanging beam 3-4 is located below the first crossbeam 3-301. The screw jack 3-302 is installed on the first crossbeam 3-301. The movable end of the screw jack 3-302 is connected to the hanging beam 3-4 and drives the hanging beam 3-4 to move up and down. Both ends of the hanging beam 3-4 are provided with lifting devices 3-401 for lifting the induction plate 3.

[0098] The trolley 3-2 is equipped with wheelsets that match the track 4. The trolley 3-2 can be a 2-ton load-bearing trolley, with dimensions of 2 meters long, 1.505 meters wide, and 0.586 meters high, and comes with four wheels 3-206. The inner wheel spacing is 1.435 meters, which is sufficient for normal operation on standard gauge railways. The trolley 3-2 is also equipped with a push rod 3-205 for easy operation by staff. Furthermore, the trolley 3-2 features a hands-free braking system to effectively prevent slippage, ensuring ample safety.

[0099] The screw jack 3-302 has four legs perpendicular to the lower trolley 3-2, which are fixed to the first crossbeam 3-301. The first crossbeam 3-301 can be a single structure or composed of two parallel longitudinal beams. In this embodiment, to facilitate the installation of the screw jack 3-302, the first crossbeam 3-301 is arranged as two parallel longitudinal beams. The four legs are fixed on the two longitudinal beams (i.e., the first crossbeam 3-301), two on each side, for a total of four. The distance between the legs of the screw jack 3-302 on the same side is 1.000 meters, which is symmetrical with respect to the center of the entire trolley 3-2.

[0100] The first support beam 3-201 and the second support beam 3-202 are arranged parallel to each other. The first support beam 3-201 and the second support beam 3-202 are connected to the trolley 3-2, so that the lower trolley 3-2 is connected to the upper first crossbeam 3-301, and the hoisting area 3-203 of the induction plate is supported in the middle of the trolley 3-2.

[0101] The linear slide rail 3-204 on the first support beam 3-201 and the linear slide rail 3-204 on the second support beam 3-202 are parallel to each other and perpendicular to the track 4.

[0102] The linear slide rail 3-204 on the first support beam 3-201 and the linear slide rail 3-204 on the second support beam 3-202 have the same stroke.

[0103] The first crossbeam 3-301 has sliders at both ends that match the linear slide rail 3-204.

[0104] The first crossbeam 3-301 and the lifting beam 3-4 are also equipped with a guide device 3-6. The guide device 3-6 consists of guide columns 3-601 symmetrically arranged on both sides of the screw jack 3-302 and guide seats 3-602 slidably mounted on the guide columns 3-601. The lower end of the guide column 3-601 is fixed to the lifting beam 3-4, and the guide seat 3-602 is mounted on the first crossbeam 3-301. In this embodiment, two guide columns 3-601 are set on one first crossbeam 3-301, with a spacing of 0.800 meters, and are symmetrical with respect to the center of the entire trolley 3-2. The screw jack 3-302 is a lifting device fixed on the first crossbeam 3-301. It can rotate laterally when the lateral wheel rotates, and drives the lower lifting device 3-401 to move up and down by its own rotation. The lifting speed can be controlled by rotating the wheel, which enhances the controllability of the movement of the induction plate 3. When the screw jack 3-302 moves the lifting beam 3-4 and the lifting device 3-401 up and down, the guide seat 3-602 also moves up and down on the guide column 3-601, making the movement more stable. The lifting device 3-401 adopts a hook structure, which can be locked at the bottom of the upper surface of the induction plate 3. When the screw jack 3-302 rises, the lifting beam 3-4 rises at the same time. At this time, the lifting device 3-401 retracts inward, gradually fixing the induction plate 3 and lifting it for vertical movement.

[0105] The length of the lifting beam 3-4 is greater than the length of the first crossbeam 3-301, and the lifting beam 3-4 extends out of the lifting area 3-203.

[0106] The suspension beams 3-4 and the track 4 are arranged parallel to each other.

[0107] The fixed end of the drive device is mounted on the trolley 3-2, and the movable end of the drive device is connected to the first crossbeam 3-301. In this embodiment, as... Figure 16As shown, the driving device is a telescopic motor 3-303. The base of the telescopic motor 3-303 is fixed on the body of the trolley 3-2. The telescopic end of the telescopic motor 3-303 is connected to the first crossbeam 3-301. When the telescopic motor 3-303 is in operation, it drives the first crossbeam 3-301 to move on the linear slide rail 3-204.

[0108] As can be seen, this application achieves the vertical movement of the induction plate by rotating the side wheel of the screw jack 3-302, which extends and retracts vertically. When the lifting device 3-401 rises, it lifts the induction plate 3. Rotating the side wheel causes the screw jack 3-302 to continue rising, simultaneously lifting the lifting device 3-401 and guiding the induction plate 3 to rise. When descending, rotating the wheel in the opposite direction causes the screw jack 3-302 to rotate in the opposite direction, simultaneously lowering the lifting device 3-401 and guiding the induction plate 3 to descend. After the induction plate 3 lands, it continues to rotate, and the lifting device 3-401 releases the induction plate 3, causing the induction plate to disengage. At this point, the lifting device 3-401 is removed, and the induction plate 3 lands in place.

[0109] This application utilizes a linear slide rail 3-204 between the first crossbeam 3-301 and the first support beam 3-201 and the second support beam 3-202 to achieve lateral movement of the sensing plate. During lateral movement, the first crossbeam 3-301 drives the lifting beam 3-4 and the lifting device 3-401, thereby causing the sensing plate 3 to move laterally left and right. This lateral movement causes the sensing plate 3 to shift from its original track center position. When the guide post 3-601 coincides with the track centerline, it indicates that the first crossbeam 3-301 is centered, and simultaneously signifies that the sensing plate 3 carried by the lifting device 3-401 is in its centered position.

[0110] Meanwhile, the sensing plate 3 of this application achieves longitudinal movement through the movement of the trolley 3-2. In this embodiment, the push rod 3-205 of the trolley 3-2 is pushed to make the trolley 3-2 move longitudinally along the track 4, thereby driving the sensing plate 3 and realizing the longitudinal movement of the sensing plate 3.

[0111] This application is designed with a rated lifting capacity of up to 600kg, which can meet the needs of the largest induction panel (5m panel). It can be used with each type of induction panel, and has good versatility. At the same time, the overall weight of this application can be unloaded from the vehicle by 5-6 people. When there is a conflict with other professional construction, the position can be flexibly adjusted, which is convenient for actual construction and production, and has good mobility. The fine adjustment of the induction panel has been changed from the traditional manual prying by a group of 8-10 people to mechanical construction by a group of 2-3 people, which greatly reduces the use of manpower and greatly improves the construction efficiency and accuracy.

[0112] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A method for constructing a linear motor induction plate track bed, characterized in that, It includes the following steps: S1. Track bed construction: pouring concrete to obtain a track bed with a strength of 5 MPa or higher. S2. Transportation and distribution of induction panels: Transport the induction panels to the construction work surface within the section and distribute the induction panels one by one onto the track bed; S3. Coarse Adjustment of Induction Plate Laying: Adjust and install the induction plate. Use induction plate fine adjustment equipment to coarsely adjust the vertical, horizontal and longitudinal positions of the induction plate. After the coarse adjustment is completed, the center line of the induction plate coincides with the center line of the track bed. Then, control the height of the coarsely adjusted induction plate. Select a reference point on the upper surface of the induction plate and mark it as Ai. Use the top surface of the rails on both sides of the induction plate as the reference surface. Add an adjustment piece at the corresponding position of the reference point Ai at the bottom of the induction plate. After adding the adjustment piece, the flatness of the upper surface of the induction plate is less than 5 mm / 1000 mm and the upper surface of the induction plate is lower than the reference surface. The thickness of the adjustment piece added to the reference point Ai is Xi, where i is the number of reference points, i≥4. S4. Fine adjustment of the induction plate: After coarse adjustment, the elevation of the induction plate is precisely measured. The relative height difference between the reference point Ai on the upper surface of the induction plate and the reference surface is measured using a measuring tool with the top surface of the rails on both sides of the induction plate as the reference surface. The relative height difference of the reference point Ai is Yi. An adjustment piece with a thickness of Ni is added again at the corresponding position of the reference point at the bottom of the induction plate. Ni = X - Xi - Yi, where X is the design height of the reference point Ai. S5. Filling gaps in the sensor plate: Fill the gaps in the position of the sensor plate fastener after fine adjustment. Add adjustment pieces to the position of the sensor plate fastener until there are no gaps. S6. Install the sensor plate fasteners and screw the anchor bolts into the pre-embedded sleeves. Do not loosen the anchor bolts during installation. S7. Remeasurement of the elevation of the induction plate: Using the top surface of the rails on both sides of the induction plate as the reference surface, the measuring tool is used to randomly remeasure the relative height difference Y between the reference point on the upper surface of the induction plate and the reference surface. If Y ≤ 2mm and the buckle plate under the induction plate is in place, it means that the elevation of the induction plate is qualified. If Y is greater than 2mm, loosen the fasteners around the reference point, use the induction plate fine adjustment equipment to lift this point, keep other positions unchanged, adjust the adjustment piece around the reference point under the induction plate until the relative height difference Y between the reference point and the reference surface is ≤ 2mm, and reinstall the induction plate fasteners. S8. Applying torque and preventing loosening of the sensor plate: After the sensor plate fasteners are installed and the elevation measurement is correct, apply torque to the sensor plate anchor bolts to the design value.

2. The method for constructing a linear motor induction plate track bed according to claim 1, characterized in that, Step S1 includes the following sub-steps: S101. Before the construction of the integral track bed, establish the CPⅢ control network to determine the position of the entire track. S102. Roughen the concrete of the track civil engineering foundation. S103. After roughening, lay the precast track slabs and track panels according to the location of the track. S104. After the rail panel is laid, install the rail support frame and install the sleeper spacing control fixture between the sleepers. S105. Adjust the geometry of the track until it meets the design requirements; S106. Bind the reinforcing steel mesh of the track bed and weld it to prevent slippage, and at the same time install the track bed formwork and expansion joint formwork; S107. Pour concrete until the concrete strength reaches 5 MPa or above, then remove the sleeper spacing control fixtures, formwork, and rail support frame to form the track bed.

3. The method for constructing a linear motor induction plate track bed according to claim 1, characterized in that, The reference points are symmetrically arranged on both sides of the induction plate with the center line of the induction plate as the axis.

4. The method for constructing a linear motor induction plate track bed according to claim 2, characterized in that, The sleeper spacing control fixture includes a base (1-1), on which a set of fixing holes (1-2) for detecting sleeper spacing is provided. The spacing between the fixing holes in the set of fixing holes (1-2) is the same as the sleeper spacing. During detection, the sleeper spacing is determined by comparing the distance between the fixing holes in the set of fixing holes (1-2) and the pre-embedded bolt holes of the sensing plate on the sleeper. When the sleeper spacing is correct, the base (1-1) is fixed on the sleeper by fastening components, and the next set of sleeper spacing is adjusted in sequence. Adjacent bases (1-1) are staggered on the sleepers.

5. The method for constructing a linear motor induction plate track bed according to claim 1, characterized in that, The measuring tool includes a first crossbeam (2-1) and a measuring component (2-2). A first positioning component (2-11) and a second positioning component (2-12) are respectively provided at both ends of the first crossbeam (2-1). The measuring component (2-2) includes a slide (2-21) slidably mounted on the first crossbeam (2-1) for measuring the lateral distance of the sensor plate measuring points, and a caliper (2-22) mounted on the slide (2-21) for measuring the vertical distance of the sensor plate measuring points. A scale (2-13) for marking the lateral distance is provided on the surface of the first crossbeam (2-1). The probe of the caliper (2-22) is arranged perpendicular to the sensor plate. During measurement, the probe contacts the sensor plate (3). This probe is used for both lateral and vertical distance measurement. The first positioning component... (2-11) is an adjustable component. The first positioning component (2-11) consists of a first positioning plate (2-111), a first stop block (2-112) slidably mounted on the first positioning plate (2-111), and an elastic element (2-113) mounted between the first positioning plate (2-111) and the first stop block (2-112). The second positioning component (2-12) consists of a second positioning plate (2-121) and a second stop block (2-122) fixedly mounted on the second positioning plate (2-121). Limiting steps (2-15) for positioning on the rails on both sides of the sensing plate (3) are formed between the first stop block (2-112) and the first positioning plate (2-111), and between the second stop block (2-122) and the second positioning plate (2-121).

6. The method for constructing a linear motor induction plate track bed according to claim 1, characterized in that, The induction plate fine-tuning device includes a trolley (3-2) that moves along a track (4), characterized in that it further includes an adjustment assembly (3-3) and a lifting beam (3-4). A first support beam (3-201) and a second support beam (3-202) are provided on the trolley (3-2). A lifting area (3-203) for installing the adjustment assembly (3-3) is provided between the first support beam (3-201) and the second support beam (3-202). The adjustment assembly (3-3) includes a second crossbeam (3-301), a screw jack (3-302), and a drive device for driving the second crossbeam (3-301) to move. Linear slide rails (3-204) are provided on both beam (3-201) and the second support beam (3-202). The second crossbeam (3-301) is slidably installed on the linear slide rail (3-204) and drives the hanging beam (3-4) to move laterally. The hanging beam (3-4) is located below the second crossbeam (3-301). The screw jack (3-302) is installed on the second crossbeam (3-301). The movable end of the screw jack (3-302) is connected to the hanging beam (3-4) and drives the hanging beam (3-4) to move up and down. Both ends of the hanging beam (3-4) are provided with lifting devices (3-401) for lifting the induction plate (3).

7. The method for constructing a linear motor induction plate track bed according to claim 5, characterized in that, The elastic element (2-113) is a spring, one end of which is connected to the first positioning plate (2-111) and the other end is connected to the first stop (2-112).

8. The method for constructing a linear motor induction plate track bed according to claim 5, characterized in that, The first crossbeam (2-1) is provided with a first track (2-14) for sliding the slide (2-21), and the first positioning plate (2-111) is provided with a second track (2-114) for sliding the first stop (2-112). The first track (2-14) and the second track (2-114) are arranged in parallel.

9. A method for constructing a linear motor induction plate track bed according to claim 6, characterized in that, The second crossbeam (3-301) and the lifting beam (3-4) are also provided with a guide device (3-6). The guide device (3-6) consists of guide columns (3-601) symmetrically arranged on both sides of the screw jack (3-302) and guide seats (3-602) slidably installed on the guide columns (3-601). The lower end of the guide column (3-601) is fixed on the lifting beam (3-4), and the guide seat (3-602) is installed on the second crossbeam (3-301).

10. A method for constructing a linear motor induction plate track bed according to claim 6, characterized in that, The fixed end of the drive device is mounted on the trolley (3-2), and the movable end of the drive device is connected to the second crossbeam (3-301).

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