Axial cooperative telescopic structure of maglev module support block

Abstract

The application discloses a kind of magnetic suspension module support block axial cooperative telescopic structure, belong to superconducting magnetic levitation traffic system bridge engineering field, including magnetic suspension module support block, magnetic suspension module support block cushion block and main beam, first sliding device is arranged between magnetic suspension module support block and main beam and / or second sliding device is arranged between magnetic suspension module support block and magnetic suspension module support block cushion block.Adjacent two magnetic suspension module support block between being provided with sliding connection limiting device and deformation joint.The axial telescopic deformation between the main beam and the magnetic suspension module support block of the magnetic suspension module support block axial cooperative telescopic structure of the application can be reasonably divided by setting first sliding device and second sliding device, limit the transverse displacement of magnetic suspension module support block in main beam.The setting of sliding connection limiting device can effectively distribute the expansion and contraction amount of the beam end of main beam to the deformation joint of multiple magnetic suspension module support blocks, reduce the expansion and contraction amount of deformation joint between magnetic suspension module support blocks.

Description

Technical Field

[0001] This invention belongs to the field of bridge engineering for superconducting maglev transportation systems, and specifically relates to an axially coordinated expansion and contraction structure for a maglev module support block. Background Technology

[0002] Traditional wheel-rail rail transit faces challenges in terms of speed, including air resistance, wheel-rail adhesion, serpentine instability, operating noise, and pantograph-catenary current collection limits. To overcome these speed limitations, some technologies combine magnetic levitation with low-vacuum technology to create ultra-high-speed, low-vacuum magnetic levitation transportation systems.

[0003] To reduce air resistance during vehicle operation, the vehicles are enclosed in vacuum tubes to eliminate air resistance. Furthermore, magnetic levitation technology replaces wheel-rail technology to eliminate mechanical friction resistance. This involves installing strong magnets on the train and electrical coils on the track. The electromagnetic force between the strong magnets and the electrical coils provides the levitation, guiding, traction, and braking forces required for train operation. Currently, superconducting maglev transportation is limited by the axial expansion and contraction of the maglev coils, and its basic bridge structure is a small-span simply supported beam bridge.

[0004] Currently, the module support blocks equipped with maglev coils are integrally connected to the main beam structure, making the expansion and contraction of the maglev module support blocks at the beam ends the same as that at the main beam ends, resulting in a larger expansion and contraction. However, due to the control requirements of superconducting maglev transportation on the axial expansion and contraction of the maglev coils, the axial expansion and contraction limit of the maglev module support blocks at the beam ends is relatively small. Therefore, there is a significant contradiction between the small limit and the large actual value for the axial expansion and contraction of the maglev module support blocks at the beam ends. Based on this, due to the contradiction between the allowable and actual expansion and contraction values ​​of the maglev module support blocks, superconducting maglev bridges typically adopt a small-span simply supported beam design, thus limiting the engineering application of superconducting maglev transportation. Summary of the Invention

[0005] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, the present invention provides an axial collaborative expansion and contraction structure for maglev module support blocks, which effectively limits the axial expansion and contraction of maglev module support blocks in long-span and long-connection bridges, and solves the contradiction between the small limit of the axial expansion and contraction of the maglev module support blocks at the beam end of superconducting maglev bridges and the large actual engineering value.

[0006] To achieve the above objectives, the present invention provides an axially coordinated telescopic structure for a magnetic levitation module support block, comprising a magnetic levitation module support block, a magnetic levitation module support block pad, and a main beam, wherein a first sliding device and / or

[0007] A second sliding device is provided between the magnetic levitation module support block and the magnetic levitation module support block pad;

[0008] The first sliding device is partially installed on the main beam and partially installed on the magnetic levitation module support block, with a sliding object between the two parts;

[0009] The second sliding device is partially installed on the magnetic levitation module support block pad, and partially installed on the magnetic levitation module support block, with a sliding object between the two parts;

[0010] A sliding connection limiting device and an expansion joint are provided between two adjacent magnetic levitation module support blocks; at least one end of the sliding connection limiting device is provided with a limiting groove, a fixing member is connected to the magnetic levitation module support block, the fixing member is placed in the limiting groove, and one end of the sliding connection limiting device is movably connected to the magnetic levitation module support block through the limiting groove.

[0011] As a further improvement of the present invention, the first sliding device is a first chute, one part of which is installed on the surface of the main beam body relative to the magnetic levitation module support block, and the other part is installed on the surface of the magnetic levitation module support block relative to the main beam, and a sliding object is filled between the two parts of the first chute.

[0012] As a further improvement of the present invention, the first sliding device is a first sliding support, which includes a first upper support plate, a first lower support plate and a first sliding member. The first upper support plate is installed on the magnetic levitation module support block, the first lower support plate is installed on the main beam body, and the first sliding member is disposed between the first upper support plate and the first lower support plate, so that the magnetic levitation module support block can slide longitudinally relative to the main beam.

[0013] As a further improvement of the present invention, the second sliding device is a second sliding groove, one part of which is installed on the surface of the magnetic levitation module support block pad relative to the magnetic levitation module support block, and the other part is installed on the surface of the magnetic levitation module support block relative to the magnetic levitation module support block pad, and a sliding object is filled between the two parts of the second sliding groove.

[0014] As a further improvement of the present invention, the second sliding device is a second sliding support, which includes a second upper support plate, a second lower support plate, and a second sliding member. The second upper support plate is mounted on the magnetic levitation module support block, the second lower support plate is mounted on the magnetic levitation module support block pad, and the second sliding member is disposed between the second upper support plate and the second lower support plate, so that the magnetic levitation module support block can slide longitudinally relative to the magnetic levitation module support block pad.

[0015] As a further improvement of the present invention, the sliding connection limiting device includes a first cooperating component, a first limiting groove formed at both ends of the first cooperating component, and a first fixing component fixedly connected to the magnetic levitation module support block;

[0016] The first fixing member is located in the first limiting slide groove and can move within the first limiting slide groove. The first cooperating member is connected to the magnetic levitation module support block through the first fixing member, and one end of the member is connected to one of the magnetic levitation module support blocks, and the other end is connected to a magnetic levitation module support block adjacent to the magnetic levitation module support block.

[0017] As a further improvement of the present invention, the first coordinating member is provided with a plurality of, and at least two, first coordinating members intersecting and connected, and the sliding connection limiting device further includes a movable member, which is disposed at the connection of the first coordinating members to allow the first coordinating members to be movably connected.

[0018] As a further improvement of the present invention, the sliding connection limiting device includes a second cooperating member, a second limiting groove formed at one end of the second cooperating member, and a second fixing member fixedly connected to the magnetic levitation module support block;

[0019] One end of the second cooperating component is fixedly connected to the second fixing component, and the other end is connected to the second fixing component on the adjacent magnetic levitation module support block through the second limiting slide groove. The second fixing component can move within the second limiting slide groove.

[0020] As a further improvement of the present invention, an elastic element and / or a damper are installed on the block wall of the magnetic levitation module support block; one end of the elastic element and / or the damper is installed on one of the magnetic levitation module support blocks, and the other end is installed on a magnetic levitation module support block adjacent to the magnetic levitation module support block.

[0021] As a further improvement of the present invention, an elastic filling material is provided in the gap between two adjacent magnetic levitation module support blocks.

[0022] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0024] (1) The axial coordinated expansion and contraction structure of the magnetic levitation module support block of the present invention, by setting deformation joints, allows the magnetic levitation module support block to better adapt to the axial expansion and contraction deformation of the main beam. At the same time, the first sliding device and the second sliding device can reasonably divide the axial expansion and contraction deformation between the main beam and the magnetic levitation module support block, limit the lateral displacement of the magnetic levitation module support block in the main beam, and reduce the axial expansion and contraction of the magnetic levitation module support block at the beam end. The setting of the sliding connection limiting device can effectively distribute the expansion and contraction of the main beam end to the deformation joints of multiple magnetic levitation module support blocks, which can also reduce the expansion and contraction of the deformation joints between the magnetic levitation module support blocks.

[0025] (2) The axial coordinated telescopic structure of the magnetic levitation module support block of the present invention enables the magnetic levitation module support block to slide longitudinally relative to the main beam by setting a sliding device, such as a sliding groove or a sliding support, while restricting the lateral displacement of the magnetic levitation module support block in the main beam.

[0026] (3) The axial collaborative expansion and contraction structure of the magnetic levitation module support block of the present invention is specifically provided with a collaborative component, a limiting groove and a fixing component through a sliding connection limiting device, which can realize the control of the limit expansion and contraction between the magnetic levitation module support blocks, so that the axial expansion and contraction of the magnetic levitation module support block at the beam end of the superconducting magnetic levitation bridge is kept within the allowable expansion and contraction of the electrical coil during normal operation.

[0027] (4) The axial coordinated telescopic structure of the magnetic levitation module support block of the present invention, by setting a damping device, including a damper, an elastic element and an elastic filling material, can effectively buffer the large longitudinal force between the longitudinally sliding magnetic levitation module support blocks, alleviate the huge impact of high-speed train driving, traction and braking on the sliding connection limit device between the magnetic levitation module support blocks, and ensure the safety and reliability of the sliding connection limit device.

[0028] (5) The axial collaborative expansion and contraction structure of the maglev module support block in this invention can reduce the expansion and contraction between the maglev module support blocks at the beam end, meet the requirement of the limit value of the small axial expansion and contraction of the maglev module support block at the beam end of the superconducting maglev bridge in actual engineering, and make the superconducting maglev module support block suitable for long-span and large-span bridges, and can be used in more engineering environments. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the cross-sectional layout of a superconducting maglev bridge in one embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the cross-sectional layout of a superconducting maglev bridge in another embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of a magnetic levitation module support block with an axially coordinated telescopic structure, as described in one embodiment of the present invention.

[0033] Figure 4 This is the present invention. Figure 3 A schematic diagram of the sliding connection limiting device of the axial collaborative telescopic structure of the magnetic levitation module support block in the embodiment;

[0034] Figure 5 This is a schematic diagram of a magnetic levitation module support block with an axially coordinated telescopic structure, as shown in another embodiment of the present invention.

[0035] Figure 6 This is the present invention. Figure 5 A schematic diagram of the sliding connection limiting device of the axial collaborative telescopic structure of the magnetic levitation module support block in the embodiment;

[0036] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0037] 1. Maglev module support block; 2. Maglev module support block pad; 3. Main beam; 4. First sliding device; 5. Second sliding device; 6. Sliding connection limiting device; 7. Expansion joint; 8. Elastic element or damper; 9. Elastic filling material;

[0038] 401. First slide groove; 402. First sliding support;

[0039] 501. Second sliding support;

[0040] 601. First cooperating component; 602. First limiting slide groove; 603. First fixing component; 604. Moving component; 605. Second cooperating component; 606. Second limiting slide groove; 607. Second fixing component. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] The operation of maglev trains requires maglev coils to provide the levitation load. To precisely fix the position of the maglev coils, maglev module support blocks need to be designed and installed. Common maglev module support blocks have circular holes, through which bolt sleeves are installed to secure the maglev coils. The maglev module support blocks are generally directly connected to the beam structure for better fixation of the maglev coils within the beam.

[0047] The inventors of this invention have noted that the theoretical limit for the axial expansion and contraction of the maglev module support blocks at the beam ends of superconducting maglev bridges is relatively small, while the actual value in engineering is much larger. This contradiction limits the structural form and span of superconducting maglev transportation bridges. To address the problem of excessive axial expansion and contraction of the maglev module support blocks in long-span and multi-span bridges, the inventors of this invention propose an axially coordinated expansion and contraction structure for maglev module support blocks.

[0048] Example:

[0049] Please see Figures 1-6 The axial collaborative telescopic structure of the maglev module support block in a preferred embodiment of the present invention includes a maglev module support block 1, a maglev module support block pad 2, and a main beam 3. A first sliding device 4 is provided between the maglev module support block 1 and the main beam 3, or a second sliding device 5 is provided between the maglev module support block 1 and the maglev module support block pad 2, or both the first sliding device 4 and the second sliding device 5 are provided. It is understood that providing multiple sliding devices can limit the lateral telescopic range of the maglev module support block 1 from multiple angles, while providing only one sliding device simplifies the structural design and can be designed and used according to actual needs.

[0050] Specifically, in the preferred embodiment, a portion of the first sliding device 4 is installed on the main beam 3, and another portion is installed on the magnetic levitation module support block 1, with a sliding object provided between the two portions. For example... Figure 1 As shown, in a preferred embodiment, the first sliding device 4 is a first sliding groove 401, one part of which is installed on the surface of the main beam 3 relative to the magnetic levitation module support block 1, and the other part is installed on the surface of the magnetic levitation module support block 1 relative to the main beam 3. A sliding object is filled between the two parts of the first sliding groove 401.

[0051] In specific implementation, the sliding object can be a spherical ball bearing or similar material. The sliding object allows the maglev module support block 1 to slide longitudinally within the main beam 3. Furthermore, in the preferred embodiment, the first groove 401 has a limited lateral distance. The design of the first groove 401 restricts the lateral displacement of the maglev module support block 1 within the main beam 3. The first groove 401 effectively divides the axial expansion and contraction deformation between the main beam 3 and the maglev module support block 1, reducing the axial expansion and contraction of the beam-end maglev module support block 1.

[0052] More specifically, in another preferred embodiment, the first sliding device 4 is a first sliding support 402, which includes a first upper support plate, a first lower support plate and a first sliding member (not shown in the figure). The first upper support plate is mounted on the magnetic levitation module support block 1, the first lower support plate is mounted on the main beam 3, and the first sliding member is disposed between the first upper support plate and the first lower support plate, so that the magnetic levitation module support block 1 can slide longitudinally relative to the main beam 3.

[0053] In specific implementation, the first sliding member can be a structure such as a sliding plate, allowing the maglev module support block 1 to slide longitudinally relative to the main beam 3. Similarly, in the preferred embodiment, the lateral distance of the first sliding support 402 is limited, which can restrict the lateral displacement of the maglev module support block 1 in the main beam 3, while reasonably dividing the axial expansion and contraction deformation between the main beam 3 and the maglev module support block 1, reducing the axial expansion and contraction of the beam-end maglev module support block 1. The first slide groove 401 and the first sliding support 402 can be provided simultaneously or only one of them can be provided. Providing only one simplifies the structural design and can be designed and used according to the actual situation.

[0054] Further, in a preferred embodiment, a portion of the second sliding device 5 is installed on the magnetic levitation module support block pad 2, and another portion is installed on the magnetic levitation module support block 1, with a slidable object between the two portions. In a preferred embodiment, the second sliding device 5 is a second sliding groove (not shown in the figure), which is similar to the first sliding groove 401. A portion of it is installed on the surface of the magnetic levitation module support block pad 2 relative to the magnetic levitation module support block 1, and another portion is installed on the surface of the magnetic levitation module support block 1 relative to the magnetic levitation module support block pad 2, with a slidable object filling the space between the two portions of the second sliding groove.

[0055] In specific implementation, the sliding object can be a spherical ball or a ball bearing, etc. The sliding object allows the magnetic levitation module support block 1 to slide longitudinally within the magnetic levitation module support block pad 2. Simultaneously, in the preferred embodiment, the lateral distance of the second slide groove is limited. The design of the second slide groove restricts the lateral displacement of the magnetic levitation module support block 1 within the magnetic levitation module support block pad 2. The second slide groove can effectively divide the axial expansion and contraction deformation between the magnetic levitation module support block pad 2 and the magnetic levitation module support block 1, reducing the axial expansion and contraction of the beam-end magnetic levitation module support block 1.

[0056] Furthermore, such as Figure 2 As shown, in another preferred embodiment, the second sliding device 5 is a second sliding support 501, which includes a second upper support plate, a second lower support plate, and a second sliding member (not shown in the figure). The second upper support plate is mounted on the magnetic levitation module support block 1, the second lower support plate is mounted on the magnetic levitation module support block pad 2, and the second sliding member is disposed between the second upper support plate and the second lower support plate, so that the magnetic levitation module support block 1 can slide longitudinally relative to the magnetic levitation module support block pad 2.

[0057] In specific implementation, the second sliding member can be a structure such as a sliding plate, allowing the maglev module support block 1 to slide longitudinally relative to the maglev module support block pad 2. Similarly, in the preferred embodiment, the second sliding support 501 has a limited lateral distance, which can restrict the lateral displacement of the maglev module support block 1 in the maglev module support block pad 2, while reasonably dividing the axial expansion and contraction deformation between the maglev module support block pad 2 and the maglev module support block 1, reducing the axial expansion and contraction of the beam-end maglev module support block 1. The second slide and the second sliding support 501 can be provided simultaneously or only one of them can be provided. Providing only one simplifies the structural design and can be designed and used according to the actual situation.

[0058] In addition, in the preferred embodiment, a sliding connection limiting device 6 and an expansion joint 7 are provided between two adjacent magnetic levitation module support blocks 1, which can better adapt to the axial expansion and contraction deformation of the main beam 3.

[0059] In detail, in the preferred embodiment, at least one end of the sliding connection limiting device 6 is provided with a limiting groove, and a fixing member is connected to the magnetic levitation module support block 1. The fixing member is placed in the limiting groove, and one end of the sliding connection limiting device 6 is movably connected to the magnetic levitation module support block 1 through the limiting groove. Figure 3 and Figure 4 As shown, in a preferred embodiment, the sliding connection limiting device 6 includes a first cooperating member 601, a first limiting groove 602 formed at both ends of the first cooperating member 601, and a first fixing member 603 fixedly connected to the maglev module support block 1. The sliding connection limiting device 6 can effectively distribute the expansion and contraction of the main beam 3 beam end to the deformation joints 7 of multiple maglev module support blocks 1, thereby reducing the expansion and contraction of the deformation joints 7 between the maglev module support blocks 1.

[0060] In a preferred embodiment, the first fixing member 603 is located within the first limiting slide groove 602 and can move within the first limiting slide groove 602. The first cooperating member 601 is connected to the maglev module support block 1 through the first fixing member 603, with one end connected to one maglev module support block 1 and the other end connected to an adjacent maglev module support block 1. That is, the first cooperating member 601 is disposed between two adjacent maglev module support blocks 1. In specific implementation, the first cooperating member 601 can be a rod-shaped object, and the first fixing member 603 can be a pin. It is relatively stationary relative to the maglev module support block 1. When the maglev module support block moves axially, it will drive the first fixing member 603 to move. It moves within the first limiting slide groove 602, and the lateral distance of the first limiting slide groove 602 is limited, which can restrict the movement of the first fixing member 603, thereby restricting the movement of the maglev module support block 1. The first limiting slide groove 602 can effectively limit the axial sliding of the first cooperating component 601 within the slide groove range. Through the first limiting slide groove 602, the limit expansion and contraction between the magnetic levitation module support blocks 1 can be controlled.

[0061] like Figure 4 As shown, in the preferred embodiment, the first coordinating member 601 is provided with multiple, and at least two, intersecting and connected. In specific implementation, two may be provided and arranged in an X-shape. The sliding connection limiting device 6 also includes a movable member 604, which is disposed at the connection of the first coordinating members 601, allowing the first coordinating members 601 to be movably connected. The first coordinating member 601 may be a ball joint. Through the axial sliding of the first coordinating member 601 and the change of the ball joint angle, the axial expansion and contraction of the deformation joint 7 between the magnetic levitation module support blocks 1 can be realized. Figure 4 The topmost image shows the position and connection relationship of the first cooperating component 601, the first limiting slide 602, the first fixing component 603, and the movable component 604 under normal conditions. The middle image shows the state of the above components under the extreme shortening state of the expansion joint 7. The bottommost image shows the state of the above components under the extreme elongation state of the expansion joint 7.

[0062] The beam end expansion and contraction of the main beam 3 is transmitted to a series of magnetic levitation module support blocks 1 equipped with a sliding connection limiting device 6 through the first sliding device 4. This series of magnetic levitation module support blocks 1 distributes the beam end expansion and contraction of the main beam 3 to the deformation joint 7 between multiple magnetic levitation module support blocks 1 through the first cooperating member 601.

[0063] More in detail, such as Figure 5 and Figure 6 As shown, in another preferred embodiment, the sliding connection limiting device 6 includes a second cooperating member 605, a second limiting groove 606 opened at one end of the second cooperating member 605, and a second fixing member 607 fixedly connected to the magnetic levitation module support block 1.

[0064] In the preferred embodiment, one end of the second cooperating member 605 is fixedly connected to the second fixing member 607. Since the second fixing member 607 is also fixedly connected to the maglev module support block 1, this end of the second cooperating member 605 is fixedly connected to the maglev module support block 1. The other end of the second cooperating member 605 is connected to the second fixing member 607 on the adjacent maglev module support block 1 through the second limiting slide groove 606. The second fixing member 607 can move within the second limiting slide groove 606.

[0065] In specific implementation, the second cooperating component 605 can be a connecting rod, and the second fixing component 607 can be a pin. Similarly, by sliding the pin in the second limiting groove 606, the axial expansion and contraction of the deformation joint 7 between the magnetic levitation module support blocks 1 can be limited, thereby controlling the limit expansion and contraction between the magnetic levitation module support blocks 1. Figure 6The topmost image shows the position and connection relationship of the second cooperating component 605, the second limiting slide 606, and the second fixing component 607 under normal conditions. The middle image shows the state of the above components under the extreme shortening state of the expansion joint 7. The bottommost image shows the state of the above components under the extreme elongation state of the expansion joint 7.

[0066] When the second sliding device 5 is installed, the expansion and contraction of the main beam 3 is first transmitted to the maglev module support block 1 closest to the beam end, causing the expansion joint 7 between the maglev module support block 1 and the adjacent maglev module support block 1 to expand and contract axially. When the expansion and contraction of the expansion joint 7 reaches the limit of the sliding connection limiting device 6, the second cooperating member 605 will be unable to expand and contract. As a rigid connecting member, the second cooperating member 605 pulls the maglev module support block 1 away from the beam end to move axially on the second sliding device 5, causing the sliding connection limiting device 6 of the maglev module support block 1 to expand and contract. The expansion and contraction of the main beam 3 is transmitted from the beam end to the expansion joint 7 of the maglev module support block 1 in a direction away from the beam end through the sliding connection limiting device 6.

[0067] In addition, such as Figure 3 and Figure 5 As shown, in the preferred embodiment, an elastic element or damper 8 is installed on the wall of the maglev module support block 1, or both an elastic element and a damper are installed simultaneously. One end of the elastic element or damper 8 is installed on one maglev module support block 1, and the other end is installed on an adjacent maglev module support block 1; or one end of the elastic element and the damper are installed on one maglev module support block 1, and the other end is installed on an adjacent maglev module support block 1.

[0068] In practical implementation, the elastic element can be a spring component. The elastic element or damper 8 is preferably installed on the outer wall of the maglev module support block 1 for easy future maintenance. The elastic element or damper 8 can be used to buffer the impact effect between the maglev module support blocks 1 caused by the operation of the high-speed maglev train.

[0069] More preferably, in the preferred embodiment, an elastic filler material 9 is provided in the gap between two adjacent maglev module support blocks 1. Similarly, the elastic filler material 9 can be used to buffer the impact effect between the maglev module support blocks 1 caused by the operation of the high-speed maglev train. The elastic element, damper, and elastic filler material 9 can be used alone, any two can be used in combination, or all three can be used together.

[0070] As described above, the maglev module support block 1 can slide longitudinally within the main beam 3. However, this longitudinal sliding needs to be restricted; otherwise, when a high-speed maglev train passes, each maglev module support block 1 will slide longitudinally at will, causing a violent collision. Therefore, longitudinal sliding dampers and / or elastic elements and / or elastic filling materials 9 are installed between each maglev module support block 1. At this time, the maglev module support block 1 will only slide when the external load is greater than a certain value. Moreover, this sliding will gradually become more difficult as the gap between the maglev module support blocks 1 decreases. That is, a huge external load (similar to a spring) is required for the sliding to cause a collision between the maglev module support blocks 1. This external load theoretically does not exist after the dampers and / or elastic elements and / or elastic filling materials 9 are installed. In other words, longitudinal sliding will never cause the support blocks to collide.

[0071] The reason why the maglev module support block 1 needs to slide longitudinally is that thermal expansion and contraction under temperature changes will cause axial deformation of the main beam 3. If the maglev module support block 1 is connected to the main beam 3, the axial deformation of the beam will cause axial deformation of the maglev module support block 1. The axial deformation of the maglev module support block 1 will in turn cause axial deformation of the maglev coil fixed on it. As a high-precision device, the maglev coil cannot be allowed to undergo such axial deformation. Therefore, allowing the maglev module support block 1 to slide longitudinally within the beam can release the expansion and contraction of the maglev coil caused by the expansion and contraction of the beam.

[0072] In practice, the number of maglev module support blocks 1 can be selected based on factors such as the temperature conditions at the construction site, the bridge structure, the span, and the axial expansion and contraction limits of the maglev coil. Maglev module support blocks 1 can be set to two or more.

[0073] The axial collaborative expansion and contraction structure of the maglev module support block in this invention can reduce the expansion and contraction between the maglev module support blocks at the beam end, meeting the requirement of small axial expansion and contraction of the maglev module support blocks at the beam end of superconducting maglev bridges in actual engineering. This makes the superconducting maglev module support blocks suitable for long-span and large-span bridges, and applicable to a wider range of engineering environments.

[0074] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An axially coordinated telescopic structure for a maglev module support block, comprising a maglev module support block, a maglev module support block pad, and a main beam, characterized in that, A first sliding device and / or is provided between the magnetic levitation module support block and the main beam. A second sliding device is provided between the magnetic levitation module support block and the magnetic levitation module support block pad; The first sliding device is partially installed on the main beam and partially installed on the magnetic levitation module support block, with a sliding object between the two parts; The second sliding device is partially installed on the magnetic levitation module support block pad, and partially installed on the magnetic levitation module support block, with a sliding object between the two parts; A sliding connection limiting device and an expansion joint are provided between two adjacent magnetic levitation module support blocks; at least one end of the sliding connection limiting device is provided with a limiting groove, a fixing member is connected to the magnetic levitation module support block, the fixing member is placed in the limiting groove, and one end of the sliding connection limiting device is movably connected to the magnetic levitation module support block through the limiting groove. The sliding connection limiting device includes a first cooperating component, a first limiting groove formed at both ends of the first cooperating component, and a first fixing component fixedly connected to the magnetic levitation module support block; The first fixing member is located in the first limiting slide groove and can move within the first limiting slide groove. The first cooperating member is connected to the magnetic levitation module support block through the first fixing member, and one end of it is connected to one of the magnetic levitation module support blocks, and the other end is connected to a magnetic levitation module support block adjacent to the magnetic levitation module support block. The first coordinating component is provided with multiple and at least two first coordinating components intersecting and connecting. The sliding connection limiting device also includes a movable component, which is disposed at the connection point of the first coordinating component to allow the first coordinating component to be movably connected. The first cooperating component is a rod-shaped object, and the first fixing component is a pin. When the magnetic levitation module support block moves axially, it drives the first fixing component to move. The first fixing component moves within the first limiting slide groove, and the lateral distance of the first limiting slide groove is limited, which can restrict the movement of the first fixing component, thereby restricting the movement of the magnetic levitation module support block.

2. The axial coordinated telescopic structure of the magnetic levitation module support block according to claim 1, characterized in that, The first sliding device is a first chute, one part of which is installed on the surface of the main beam body relative to the magnetic levitation module support block, and the other part is installed on the surface of the magnetic levitation module support block relative to the main beam. A sliding object is filled between the two parts of the first chute.

3. The axial coordinated telescopic structure of the magnetic levitation module support block according to claim 1, characterized in that, The first sliding device is a first sliding support, which includes a first upper support plate, a first lower support plate and a first sliding member. The first upper support plate is installed on the magnetic levitation module support block, the first lower support plate is installed on the main beam body, and the first sliding member is disposed between the first upper support plate and the first lower support plate, so that the magnetic levitation module support block can slide longitudinally relative to the main beam.

4. The axial coordinated telescopic structure of the magnetic levitation module support block according to claim 1, characterized in that, The second sliding device is a second sliding groove, one part of which is installed on the surface of the magnetic levitation module support block pad relative to the magnetic levitation module support block, and the other part is installed on the surface of the magnetic levitation module support block relative to the magnetic levitation module support block pad. A sliding object is filled between the two parts of the second sliding groove.

5. The axial coordinated telescopic structure of the magnetic levitation module support block according to claim 1, characterized in that, The second sliding device is a second sliding support, which includes a second upper support plate, a second lower support plate, and a second sliding member. The second upper support plate is mounted on the magnetic levitation module support block, the second lower support plate is mounted on the magnetic levitation module support block pad, and the second sliding member is disposed between the second upper support plate and the second lower support plate, so that the magnetic levitation module support block can slide longitudinally relative to the magnetic levitation module support block pad.

6. The axial coordinated telescopic structure of the magnetic levitation module support block according to any one of claims 1 to 5, characterized in that, Elastic elements and / or dampers are installed on the block walls of the maglev module support blocks; one end of the elastic element and / or the damper is installed on one of the maglev module support blocks, and the other end is installed on a maglev module support block adjacent to the first maglev module support block.

7. The axial coordinated telescopic structure of the magnetic levitation module support block according to claim 1, characterized in that, An elastic filling material is provided in the gap between two adjacent magnetic levitation module support blocks.

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