A maglev track beam assembly, a maglev line and a construction method thereof

Abstract

An embodiment of the present invention discloses a maglev track beam assembly, a maglev line and a construction method. The maglev track beam assembly includes a track beam, a vertical adjustment device, a horizontal adjustment device and an installation base. The installation base is provided with a cavity, and the bottom end of the track beam is located in the cavity. The vertical adjustment device can drive the track beam to move relative to the installation base in the vertical direction, and the horizontal adjustment device can drive the track beam to move relative to the installation base in the horizontal direction. The cavity can receive concrete slurry so that at least a part of the horizontal adjustment device, at least a part of the vertical adjustment device and the bottom end of the track beam are cast in the concrete. The maglev track beam assembly in the embodiment of the present invention improves the installation accuracy of the track beam, is conducive to mass production, reduces the workload and construction cost during the construction process, and saves the operation time.

Description

Technical Field

[0001] The present invention belongs to the field of maglev rail transit, and particularly relates to a maglev track beam assembly, a maglev line and a construction method thereof. Background Art

[0002] A maglev train is a new type of rail train that uses the principle of electromagnetic levitation to drive. It realizes non-contact suspension and guidance between the train and the track through electromagnetic forces generated by electromagnetic devices respectively arranged on the train and the track, and then uses the electromagnetic force generated by a linear motor to tow the train to run. The train and the track do not contact during actual running, so that the friction force suffered by the maglev train during running is much smaller than that of a traditional wheel-rail train. Therefore, the maglev train has many advantages such as high speed, stable operation, comfort, and no noise, and is one of the important directions for the development of future rail transit.

[0003] Different from traditional steel rails, complex electromagnetic devices need to be arranged on the maglev track, and the electromagnetic devices on the maglev track directly affect the dynamic performance, stability and safety of the maglev train during operation. Therefore, during the installation and construction of the maglev track, special attention needs to be paid to the docking accuracy between the track beams of each section of the maglev track. However, at present, during the process of installing and adjusting the position of the track beam, additional auxiliary devices such as jacks and lifting equipment are required, and the position of the track beam cannot be directly adjusted; after the track beam is installed at the predetermined position, the relevant auxiliary devices need to be removed before the position of the track beam can be fixed, which increases the workload of the construction operation. Summary of the Invention

[0004] In view of this, the embodiments of the present invention are expected to provide a maglev track beam assembly, a maglev line and a construction method thereof that can directly adjust and fix the position of the track beam.

[0005] To achieve the above object, the embodiments of the present invention provide a maglev track beam assembly, including a track beam, a vertical adjustment device, a horizontal adjustment device and an installation base. The installation base is provided with a cavity, the bottom end of the track beam is located in the cavity, the vertical adjustment device can drive the track beam to move relative to the installation base in the vertical direction, the horizontal adjustment device can drive the track beam to move relative to the installation base in the horizontal direction, and the cavity is configured to: be able to receive concrete slurry so that at least a part of the horizontal adjustment device, at least a part of the longitudinal adjustment device and the bottom end of the track beam are poured in the concrete.

[0006] In some embodiments, the vertical adjustment device includes at least one vertical adjustment bolt, the track beam is provided with a vertical threaded hole penetrating the track beam in the vertical direction, the vertical adjustment bolt is inserted into the vertical threaded hole, and the track beam is supported on the installation base through the vertical adjustment bolt.

[0007] In some embodiments, vertical sleeves are embedded in the track support beam, and the vertical threaded holes are provided on the vertical sleeves.

[0008] In some embodiments, the mounting base includes mounting side plates, the lateral adjustment device includes at least one lateral adjustment bolt, the lateral adjustment bolt passes through the mounting side plates from outside to inside, and the lateral adjustment bolt extends into the cavity and abuts against one side of the track support beam in the horizontal direction.

[0009] In some embodiments, the mounting base includes a mounting bottom plate and a plurality of mounting side plates, the mounting bottom plate and the plurality of mounting side plates jointly enclose to form the cavity, and the top side of the cavity is open.

[0010] In some embodiments, a sliding groove is provided on the mounting base, the sliding groove extends along the horizontal movement direction of the track support beam, and the bottom end of the vertical adjustment device is located in the sliding groove and can slide in the sliding groove.

[0011] In some embodiments, the sliding groove is located in the cavity.

[0012] In some embodiments, the track support beam includes two spaced-apart support columns and a cross beam connected between the tops of the two support columns. Each support column is correspondingly provided with the base, the lateral adjustment device, and the vertical adjustment device. Among them, the lateral adjustment device is located on one side of one support column facing away from the other support column, and the lateral adjustment devices corresponding to the two support columns apply opposite acting forces to the track support beam in the horizontal direction.

[0013] In some embodiments, a support foot extending in the horizontal direction is provided at the bottom end of the support column, and the vertical adjustment device and the lateral adjustment device are connected to the support foot.

[0014] An embodiment of the present invention further provides a maglev track line including the maglev track support beam assembly of any one of the foregoing embodiments. The maglev track line further includes a track beam and a maglev track. The maglev track is fixedly arranged on the track support beam, and the maglev track support beam assembly is fixedly arranged on the top surface of the track beam.

[0015] An embodiment of the present invention further provides a construction method including the foregoing maglev track line. The construction method includes the following steps:

[0016] Connect the bottom surface of the mounting base to the top surface of the track beam to fix the maglev track support beam assembly at the preset installation position of the track support beam assembly on the top of the track beam;

[0017] Fix the maglev track at the preset installation position of the track on the track support beam;

[0018] Adjust the lateral adjustment device to move the maglev track support beam assembly horizontally to the preset lateral position;

[0019] Adjust the vertical adjustment device to move the maglev track support beam assembly vertically to the preset vertical position;

[0020] Inject concrete into the cavity until the cavity is filled with concrete.

[0021] In the maglev track support beam assembly in the embodiment of the present invention, the installation position of the track support beam is directly adjusted through the lateral adjustment device and the vertical adjustment device, which facilitates the adjustment of the vertical and lateral positions of the track support beam at any time during installation, improves the installation accuracy of the track support beam, does not require relying on other additional adjustment auxiliary devices, reduces the workload and construction cost during the construction process. By injecting concrete into the cavity, the track support beam can be directly fixed after being adjusted to the appropriate position, saving operation time. The installation base can serve as the base of the track support beam, which is beneficial to strengthening the support and improving the structural stability. At least a part of the lateral adjustment device and at least a part of the vertical adjustment device can be buried in the concrete, enabling the lateral adjustment device and the vertical adjustment device to be used as disposable devices, reducing the strength and life requirements and lowering the cost. Description of the Drawings

[0022] Figure 1 It is a cross-sectional schematic diagram of a maglev line in an embodiment of the present invention;

[0023] Figure 2 It is Figure 1 an enlarged schematic diagram of position A in

[0024] Figure 3 It is Figure 2 a schematic diagram of the installation base from a top view perspective in

[0025] Figure 4 It is Figure 2 a schematic diagram after the cavity is filled with concrete in

[0026] Figure 5 It is a flowchart of the construction method of the maglev line in the embodiment of the present invention.

[0027] Description of the Reference Numerals

[0028] 10. Maglev track support beam assembly 11. Vertical adjustment device 111. Vertical adjustment bolt

[0029] 12. Lateral adjustment device 121. Lateral adjustment bolt 13. Installation base

[0030] 13a, cavity 131, mounting side plate 132, mounting base plate

[0031] 133, chute 14, track-bearing beam 141, cross beam

[0032] 142, support column 1421, vertical sleeve 1422, support foot

[0033] 1423, vertical threaded hole 20, maglev track 30, track beam

[0034] 30a, chemical anchor bolt Detailed implementation manners

[0035] It should be noted that, without conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. The detailed description in the specific implementation manners should be understood as an explanatory illustration of the purpose of the present application and should not be regarded as an improper limitation to the present application.

[0036] In the description of the present application, the orientation or positional relationship of "top", "bottom", "vertical direction", "horizontal direction" is based on the orientation or positional relationship shown in the attached Figure 1 It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0037] An embodiment of the present invention provides a maglev track-bearing beam assembly 10. Refer to Figure 1 , Figure 2 and Figure 4 . The maglev track-bearing beam assembly 10 includes a track-bearing beam 14, a vertical adjustment device 11, a horizontal adjustment device 12 and a mounting base 13. The mounting base 13 is provided with a cavity 13a. The bottom end of the track-bearing beam 14 is located in the cavity 13a. The vertical adjustment device 11 can drive the track-bearing beam 14 to move relative to the mounting base 13 in the vertical direction. The horizontal adjustment device 12 can drive the track-bearing beam 14 to move relative to the mounting base 13 in the horizontal direction. The cavity 13a is configured to: be able to receive concrete slurry so that at least a part of the horizontal adjustment device 12, at least a part of the vertical adjustment device 11 and the bottom end of the track-bearing beam 14 are cast in the concrete.

[0038] The maglev track beam assembly 10 provided by the embodiments of the present invention adjusts the installation position of the track beam 14 directly through the lateral adjustment device 12 and the vertical adjustment device 11, which facilitates the adjustment of the vertical and lateral positions of the track beam 14 at any time during installation, improves the installation accuracy of the track beam 14, does not require relying on other additional adjustment auxiliary devices, and reduces the workload and construction cost during the construction process. By injecting concrete into the cavity 13a, the track beam 14 can be directly fixed after being adjusted to the appropriate position, saving operation time. The installation base 13 can serve as the base of the track beam 14, which is beneficial to strengthening the support and improving the structural stability. At least a part of the lateral adjustment device 12 and at least a part of the vertical adjustment device 11 can be buried in the concrete, enabling the lateral adjustment device 12 and the vertical adjustment device 11 to be used as disposable devices, reducing the requirements for strength and service life, and reducing costs.

[0039] It can be understood that, in order to improve the installation accuracy of the track beam 14, the vertical adjustment device 11 and the lateral adjustment device 12 can enable the vertical and lateral distances of the track beam 14 relative to the installation base 13 to be adjusted steplessly.

[0040] Exemplarily, in some embodiments, refer to Figure 2 , the vertical adjustment device 11 includes at least one vertical adjustment bolt 111. The track beam 14 is provided with a vertical threaded hole 1423 that penetrates the track beam 14 in the vertical direction. The vertical adjustment bolt 111 is inserted into the vertical threaded hole 1423, and the track beam 14 is supported on the installation base 13 through the vertical adjustment bolt 111. One end of the vertical adjustment bolt 111 abuts against the installation base 13. By rotating the vertical adjustment bolt 111, under the pressure of the track beam 14, the vertical adjustment bolt 111 will not displace in the vertical direction, causing the track beam 14 to move in the vertical direction. The vertical adjustment bolt 111 is threadedly connected to the track beam 14, realizing the stepless adjustment of the track beam 14 in the vertical direction. The vertical adjustment bolt 111 can adopt a standard bolt, which is convenient for pre-assembly in the factory and reduces the material and construction costs.

[0041] Generally, the track beam 14 is formed by concrete pouring. In order to prevent the thread teeth of the vertical adjustment bolt 111 from damaging the concrete of the track beam 14 during rotation and avoid the concrete from cracking, an auxiliary device can be set to prevent the vertical adjustment bolt 111 from directly contacting the track beam 14.

[0042] Exemplarily, in some embodiments, refer to Figure 2, a vertical sleeve 1421 is embedded in the track support beam 14, and a vertical threaded hole 1423 is provided on the vertical sleeve 1421. The vertical sleeve 1421 is directly thread-connected to the vertical adjusting bolt 111, and the frictional force generated during the rotation of the vertical adjusting bolt 111 is directly transmitted to the vertical sleeve 1421, avoiding direct friction on the track support beam 14 and preventing the concrete of the track support beam 14 from cracking due to being unable to bear the frictional force and the self-weight of the track support beam 14.

[0043] The outer surface of the vertical sleeve 1421 can be provided with knurling or concavo-convex structures to increase the bonding force between the vertical sleeve 1421 and the track support beam 14 by increasing the contact area and prevent the vertical sleeve 1421 from loosening.

[0044] In some embodiments, referring to Figure 2 , the mounting base 13 includes mounting side plates 131, and the lateral adjusting device 12 includes at least one lateral adjusting bolt 121. The lateral adjusting bolt 121 passes through the mounting side plate 131 from the outside to the inside, and the lateral adjusting bolt 121 extends into the cavity 13a and abuts against one side of the track support beam 14 in the horizontal direction. The lateral adjusting bolt 121 is thread-connected to the mounting side plate 131. By rotating the lateral adjusting bolt 121, the lateral adjusting bolt 121 gradually extends into the cavity 13a, thereby pushing the track support beam 14 in contact with the lateral adjusting bolt 121 to move, realizing the lateral movement of the track support beam 14.

[0045] In some embodiments, referring to Figure 2 , the mounting base 13 includes a mounting bottom plate 132 and a plurality of mounting side plates 131. The plurality of mounting side plates 131 and the mounting bottom plate 132 jointly enclose a cavity 13a, and the top side of the cavity 13a is open. The mounting side plates 131 and the mounting bottom plate 132 enclose a relatively closed cavity 13a. The track support beam 14 can extend into the cavity 13a through the open top side of the cavity 13a, and concrete can also be injected into the cavity 13a through the open top side of the cavity 13a without separately opening an independent grouting port, which is beneficial to simplifying the process flow. After the concrete solidifies, the mounting base 13 and the track support beam 14 become an integral body, and the mounting base 13 can further enhance the supporting effect of the track support beam 14 and improve the stability.

[0046] It can be understood that the vertical adjusting bolt 111 and the lateral adjusting bolt 121 can be partially buried in the concrete or completely buried in the concrete. For example, referring to Figure 4 , the vertical threaded hole 1423 can be completely located within the cavity 13a, and the position where the lateral adjusting bolt 121 passes through the mounting side plate 131 can also be located within the cavity 13a, so that after the concrete is injected ( Figure 4The position of the hollow cavity 13a where concrete has been injected (represented in a shaded manner) can completely cover the parts of the vertical adjustment bolts 111 and the horizontal adjustment bolts 121 extending into the cavity 13a, preventing the vertical adjustment bolts 111 and the horizontal adjustment bolts 121 exposed to the air from being damaged by oxidation and rust after long-term use, which may affect the structural strength and extend the service life. In addition, after the vertical adjustment bolts 111 and the horizontal adjustment bolts 121 are embedded in the concrete, the solidified concrete supports the mass of the track support beam 14 and fixes the position of the track support beam 14. Therefore, the vertical adjustment bolts 111 and the horizontal adjustment bolts 121 can be used as disposable components, reducing the service life requirements and costs.

[0047] Due to the large volume and weight of the track support beam 14, in order to facilitate the adjustment of the track support beam 14 by the lateral adjustment device 12, a guiding mechanism can be provided for assistance, such as guide plates, guide rails, etc.

[0048] Exemplarily, in some embodiments, referring to Figure 2 and Figure 3 , a chute 133 is provided on the mounting base 13. The chute 133 extends along the horizontal movement direction of the track support beam 14. The bottom end of the vertical adjustment device 11 is located in the chute 133 and can slide in the chute 133. The cooperation between the chute 133 and the vertical adjustment device 11 can play a guiding role, enabling the vertical adjustment device 11 to translate along a predetermined direction under the push of the lateral adjustment device 12, thereby driving the track support beam 14 to move and preventing the track support beam 14 from being overly deflected due to uneven force, reducing the construction difficulty, reducing the number of adjustments, and saving time.

[0049] In some embodiments, the chute 133 is located inside the cavity 13a. After the concrete is injected, the vertical adjustment device 11 located in the chute 133 is completely immersed in the concrete, completely fixing the position of the track support beam 14 and preventing it from moving.

[0050] It can be understood that the number of chutes 133 is the same as the number of vertical adjustment devices 11 and they correspond one by one.

[0051] To adapt to the installation and adjustment of the vertical adjustment device 11 and the lateral adjustment device 12, enhance the stability of the track support beam 14, simplify the structure and component quantity of the maglev track support beam assembly 10, and facilitate personnel operation and construction, the composition and structure of the track support beam 14 can be optimized.

[0052] In some embodiments, referring to Figure 1The track-bearing beam 14 includes two support columns 142 arranged at intervals and a crossbeam 141 connected between the top ends of the two support columns 142. Each support column 142 is provided with a base, a lateral adjustment device 12 and a vertical adjustment device 11. The lateral adjustment device 12 is located on the side of one of the support columns 142 away from the other support column 142. The lateral adjustment devices 12 corresponding to the two support columns 142 exert opposite forces on the track-bearing beam 14 in the horizontal direction. The lateral adjustment device 12 is only located on one side of the support column 142, and the lateral adjustment devices 12 on the two support columns 142 exert opposite forces on the track-bearing beam 14, so that the lateral adjustment device 12 on one side only needs to be able to push the track-bearing beam 14 to move in a single direction. The two lateral adjustment devices 12 on both sides cooperate to realize the lateral bidirectional adjustment of the track-bearing beam 14, thereby reducing the number of lateral adjustment devices 12, reducing costs, and reducing the workload of the lateral adjustment process.

[0053] In some embodiments, see Figure 2 The bottom end of the support column 142 is provided with a support foot 1422 extending in the horizontal direction, and the vertical adjustment device 11 and the lateral adjustment device 12 are connected to the support foot 1422. The support foot 1422 can increase the contact area between the support column 142 and the mounting base 13, reduce the pressure, and improve the structural stability of the rail-bearing beam 14. The height of the support foot 1422 is significantly lower than the height of other parts of the support column 142, so that the vertical adjustment device 11 installed on the support foot 1422 can reduce the overall height of the device while ensuring the adjustment stroke, reduce the manufacturing cost, and reduce the assembly time.

[0054] It is understandable that the magnetic suspension track-bearing beam assembly 10 in the embodiment of the present invention needs to form a complete magnetic suspension circuit together with other components in the prior art.

[0055] Exemplarily, an embodiment of the present invention further provides a magnetic suspension line including the magnetic suspension track beam assembly 10 in any of the above embodiments, see Figure 1 The maglev line also includes a track beam 30 and a maglev track 20. The maglev track 20 is fixedly arranged on the track beam 14, and the maglev track beam assembly 10 is fixedly arranged on the top surface of the track beam 30. The maglev track beam assembly 10 can adjust the position of the maglev track 20 through the vertical adjustment device 11 and the horizontal adjustment device 12, thereby improving the docking accuracy of each section of the maglev track 20. The maglev track beam assembly 10 is arranged on the track beam 30, so that the weight of the maglev train is transmitted to the roadbed through the maglev track beam assembly 10 and the track beam 30.

[0056] The present invention also provides a method for constructing a magnetic suspension line in any of the above embodiments, referring to Figure 5 , the construction method comprises the following steps:

[0057] S1: Connect the bottom surface of the mounting base 13 to the top surface of the track beam 30 to fix the maglev track beam assembly 10 at the preset installation position of the track beam assembly on the top of the track beam 30.

[0058] It should be noted that according to the specific situation of on-site construction, referring to Figure 1 and Figure 2 , the fixed connection between the mounting base 13 and the track beam 30 can be achieved by using chemical anchor bolts 30a, or the method of installing expansion anchor bolts can also be adopted. To facilitate the quick and convenient placement of the maglev track beam assembly 10 to the preset installation position of the track beam assembly, a groove can be pre-set at this position on the track beam 30, so that the mounting base 13 can be partially placed into the groove, which is convenient for the quick positioning and placement of the maglev track beam assembly 10 and shortens the construction time. After the position of the maglev track beam assembly 10 is adjusted, concrete can be injected into the groove to fix the position of the mounting base 13.

[0059] S2: Fix the maglev track 20 at the preset installation position of the track on the track beam 14.

[0060] S3: Adjust the lateral adjustment device 12 to move the maglev track beam assembly 10 horizontally to the preset lateral position.

[0061] S4: Adjust the vertical adjustment device 11 to move the maglev track beam assembly 10 vertically to the preset vertical position.

[0062] S5: Inject concrete into the cavity 13a until the cavity 13a is filled with concrete.

[0063] Through this construction method, stepless adjustment of the displacement of the maglev track 20 in the vertical and horizontal directions can be achieved, improving the installation accuracy of the maglev track 20. By pouring concrete, the maglev track beam assembly 10 becomes a part of the maglev line, without the need to remove the vertical adjustment device 11 and the lateral adjustment device 12, shortening the construction time and reducing the workload of personnel.

[0064] The various embodiments / implementation manners provided in this application can be combined with each other without contradiction.

[0065] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A maglev track beam assembly, characterized in that, The magnetic levitation track beam assembly includes a track beam, a vertical adjustment device, a lateral adjustment device and a mounting base. The mounting base is provided with a cavity. The bottom end of the track beam is located in the cavity. The vertical adjustment device can drive the track beam to move in a vertical direction relative to the mounting base. The lateral adjustment device can drive the track beam to move in a horizontal direction relative to the mounting base. The cavity is constructed to receive concrete slurry so that at least a portion of the lateral adjustment device, at least a portion of the vertical adjustment device and the bottom end of the track beam are cast in concrete.

2. The maglev track beam assembly according to claim 1, characterized in that The vertical adjustment device includes at least one vertical adjustment bolt. The rail-supporting beam is provided with a vertical threaded hole penetrating the rail-supporting beam in the vertical direction. The vertical adjustment bolt is passed through the vertical threaded hole. The rail-supporting beam is supported on the mounting base through the vertical adjustment bolt.

3. The maglev track beam assembly according to claim 2, wherein A vertical sleeve is pre-buried in the rail-bearing beam, and the vertical threaded hole is arranged on the vertical sleeve.

4. The maglev track beam assembly according to claim 1, wherein The mounting base includes a mounting side plate, and the lateral adjustment device includes at least one lateral adjustment bolt, which passes through the mounting side plate from the outside to the inside, extends into the cavity and abuts against one side of the rail beam in the horizontal direction.

5. The maglev track beam assembly according to claim 1, characterized in that, The mounting base comprises a mounting bottom plate and a plurality of mounting side plates, wherein the mounting bottom plate and the plurality of mounting side plates are jointly arranged to form the cavity, and the top side of the cavity is open.

6. The maglev track beam assembly according to claim 1, characterized in that, A slide groove is arranged on the mounting base, and the slide groove extends along the horizontal movement direction of the rail-supporting beam. The bottom end of the vertical adjustment device is located in the slide groove and can slide in the slide groove.

7. The maglev track beam assembly according to claim 6, characterized in that, The slide groove is located in the cavity.

8. The maglev track beam assembly according to claim 1, wherein, The track-supporting beam includes two support columns arranged at intervals and a crossbeam connected between the top ends of the two support columns, and each of the support columns is correspondingly provided with the base, the lateral adjustment device and the vertical adjustment device, wherein the lateral adjustment device is located on the side of one of the support columns away from the other support column, and the lateral adjustment devices corresponding to the two support columns apply opposite forces in the horizontal direction to the track-supporting beam.

9. The maglev track beam assembly according to claim 8, wherein, The bottom end of the support column is provided with a support foot extending in the horizontal direction, and the vertical adjustment device and the horizontal adjustment device are connected to the support foot.

10. A maglev track line comprising the maglev track beam assembly according to claims 1-9, characterized in that, The magnetic levitation line also includes a track beam and a magnetic levitation track. The magnetic levitation track is fixedly arranged on the track-supporting beam, and the magnetic levitation track-supporting beam assembly is fixedly arranged on the top surface of the track beam.

11. A construction method applied to the maglev line described in claim 10, characterized in that, The construction method comprises the following steps: Connecting the bottom surface of the mounting base to the top surface of the track beam, so that the magnetic suspension track beam assembly is fixed to a preset mounting position of the track beam assembly on the top of the track beam; Fixing the magnetic suspension track on a preset track installation position of the track-supporting beam; Adjust the lateral adjustment device to move the magnetic suspension track-bearing beam assembly to a preset lateral position in the horizontal direction; Adjust the vertical adjustment device to move the magnetic suspension track-bearing beam assembly to a vertical preset position in the vertical direction; Concrete is poured into the cavity until the concrete fills the cavity.

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