Bridge support suitable for magnetic levitation line

Abstract

The utility model discloses a bridge support suitable for a magnetic levitation line, which belongs to the technical field of bridge supports and comprises an upper support plate, a spherical crown lining plate and a lower support plate which are sequentially matched in the vertical direction. The plane wear-resisting plate and the spherical wear-resisting plate are arranged between the bottom face of the upper support plate and the top face of the spherical crown lining plate and between the bottom face of the spherical crown lining plate and the top face of the lower support plate, so that the bridge support slides and rotates more easily, the two wear-resisting plates are high-elastic-modulus wear-resisting plates with the elastic modulus not smaller than 2000 Mpa, vertical compression deformation of the bridge support is greatly reduced, and the service life of the bridge support is prolonged. Furthermore, by arranging the connecting mode of the connecting piece, the spherical crown lining plate and the lower support plate, the spherical crown lining plate can rotate, the situation of over-corner disengaging is avoided, and the working reliability of the structure is guaranteed. The bridge support suitable for the magnetic levitation line is simple in structure and convenient to install, the smoothness requirement of the magnetic levitation line can be met, and the working reliability of the bridge support is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge supports, and in particular relates to a bridge support suitable for a maglev line. Background Art

[0002] Magnetic levitation transportation is a new form of rail transportation that uses the attraction or repulsion of the magnetic field to achieve contactless suspension and guidance between trains and tracks, and then uses linear motors to achieve drive. It has the advantages of high speed, high reliability, easy maintenance, low cost, low noise, and no pollution.

[0003] However, with the leap-forward increase in the speed of maglev trains, the requirements for the smoothness of the track line of maglev rail transit are becoming increasingly higher, especially when the train is running at extremely high speeds. The smoothness of the track line not only has a certain impact on the comfort of rail transit operation, but also affects the safety of train operation. Therefore, the deformation requirements of maglev rail transit bridge bearings are also higher than those of conventional railway track bearings.

[0004] In general, in addition to conventional functions, the bearings of maglev rail transit bridges also need to meet the requirements of controlling compression deformation and shear deformation. Due to the high speed of maglev trains, under the action of lateral loads, if the lateral gap and deformation of the bearings are too large, it will affect the smoothness of the line; in addition, the track suspension distance is small, and the suspension distance must be guaranteed under dynamic loads. The bearings should meet the requirements of greater stiffness and minimize the vertical deformation. At the same time, rail transit inevitably has the need to adjust the slope of the line. At present, most of the bearings used in my country's railways are pot-type rubber bearings and spherical steel bearings, and the rotation angle is usually ±0.02rad. Large-angle slope adjustment needs to be achieved by adding wedge blocks, etc., but the actual construction is difficult, the operation process is difficult to control, and there are errors in the construction process. It is difficult to ensure that the lower end face of the wedge block fits perfectly with the upper surface of the bearing, and there are hidden dangers such as partial detachment of the beam body, which seriously affects the safety of train operation. In addition, during the displacement and sliding process of the bearing, the presence of the slope adjustment wedge block will cause the track bridge to have a height difference along the slope direction, seriously affecting the smoothness of the track line. Therefore, how to combine the requirements of magnetic levitation supports and design reliable supports that meet the smoothness requirements of track lines is a key issue that needs to be solved urgently. Utility Model Content

[0005] In response to one or more of the above defects or improvement needs of the prior art, the utility model provides a bridge bearing suitable for a maglev line, which can not only slide or rotate smoothly during the operation of the maglev line, but also greatly reduces its vertical compression deformation to meet the smoothness requirements of the ultra-high-speed maglev line.

[0006] To achieve the above object, the utility model provides a bridge bearing suitable for a maglev line, which comprises an upper bearing plate, a spherical cap lining plate and a lower bearing plate which are matched and arranged in sequence in a vertical direction, wherein the spherical cap lining plate is planarly matched with the upper bearing plate, and the spherical cap lining plate is spherically matched with the lower bearing plate.

[0007] A plane wear-resistant plate is provided between the upper support plate and the spherical cap lining plate, and a spherical wear-resistant plate is provided between the spherical cap lining plate and the lower support plate, wherein the plane wear-resistant plate and / or the spherical wear-resistant plate are high elastic modulus wear-resistant plates with an elastic modulus of not less than 2000Mpa;

[0008] The spherical crown lining plate and the lower support plate are respectively provided with a through hole and a blind hole in the middle, and the two are connected by a connecting piece; the lower part of the connecting piece is tightly connected to the lower support plate, and a gap is provided between the upper part of the connecting piece and the spherical crown lining plate, so that the spherical crown lining plate can rotate relative to the lower support plate.

[0009] As a further improvement of the utility model, sealing rings are respectively arranged between the spherical crown lining plate and the upper support plate, and between the spherical crown lining plate and the lower support plate, and the sealing rings are arranged on the outer sides of the planar wear-resistant plate and the spherical wear-resistant plate.

[0010] As a further improvement of the present invention, limiting plates are respectively arranged on both lateral sides of the bottom of the upper support plate, and the two limiting plates extend along the bridge direction.

[0011] As a further improvement of the utility model, protrusions opposite to the limiting plates are provided on both sides of the lower support plate, and industrial lubricants are applied to the sides of the protrusions opposite to the limiting plates.

[0012] As a further improvement of the utility model, the plane end of the spherical crown lining is provided with an annular groove, and the planar wear-resistant plate is embedded in the annular groove; the lower support plate is provided with an annular curved groove, and the spherical wear-resistant plate is embedded in the annular curved groove.

[0013] As a further improvement of the utility model, the corresponding parts of the upper support plate and the flat wear-resistant plate are treated by chrome plating, nickel-phosphorus alloy plating or mirror-finished stainless steel plate coating;

[0014] and / or,

[0015] The corresponding parts of the spherical crown lining plate and the spherical wear-resistant plate are treated by chrome plating, nickel-phosphorus alloy plating or mirror-finished stainless steel plate pasting.

[0016] As a further improvement of the present invention, the top surface of the upper bearing plate is fixedly connected to the bridge beam body through a first anchor bolt assembly, and the bottom surface of the lower bearing plate is fixedly connected to the bridge pier through a second anchor bolt assembly.

[0017] As a further improvement of the present invention, pre-bias adjustment devices are provided on both sides of the bottom of the lower support plate, including a pre-bias driving component and a pre-bias driven component, which are used to perform pre-bias processing on the upper support plate.

[0018] As a further improvement of the present invention, the pre-bias adjustment device further includes a displacement indicating component for displaying the pre-bias amount of the upper seat plate.

[0019] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0020] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0021] (1) The utility model is suitable for a bridge bearing of a maglev line, which includes an upper bearing plate, a spherical crown lining plate and a lower bearing plate which are arranged in sequence in a vertical direction. The friction coefficient between the bottom surface of the upper bearing plate and the top surface of the spherical crown lining plate, and between the bottom surface of the spherical crown lining plate and the top surface of the lower bearing plate are reduced by arranging a flat wear-resistant plate and a spherical wear-resistant plate, so that the bridge bearing is more likely to slide and rotate during operation. The two wear-resistant plates are arranged as high elastic modulus wear-resistant plates with an elastic modulus of not less than 2000Mpa, which greatly reduces the vertical compression deformation of the bridge bearing to meet the smoothness requirements of the ultra-high-speed maglev line. At the same time, by arranging a connection between a connecting piece and the spherical crown lining plate and the lower bearing plate, the spherical crown lining plate can be rotated without being emptied at an excessive angle, thereby ensuring the reliability of the structural operation.

[0022] (2) The utility model is suitable for the bridge bearing of the maglev line. It arranges sealing rings between the spherical crown lining and the upper bearing plate, and between the spherical crown lining and the lower bearing plate, and the sealing rings are arranged on the outside of the flat wear-resistant plate and the spherical wear-resistant plate to prevent dust or debris from entering the connection parts between the spherical crown lining and the upper bearing plate, and between the spherical crown lining and the lower bearing plate, thereby preventing dust or debris from entering the connection parts between the spherical crown lining and the upper bearing plate, and between the spherical crown lining and the lower bearing plate, and affecting the sliding and rotation of the bridge bearing.

[0023] (3) The utility model is suitable for the bridge bearing of the maglev line. It has limit plates extending along the longitudinal direction of the bridge respectively arranged on the two lateral sides of the bottom of the upper bearing plate to limit the sliding of the bearing along the transverse direction of the bridge and avoid the misalignment of the bridge body. At the same time, the bearing can rotate and slide along the longitudinal direction of the bridge, meeting the displacement requirements of the bridge bearing mainly subjected to the load along the longitudinal direction of the bridge during operation, thereby ensuring the smoothness of the maglev line.

[0024] (4) The bridge bearing of the utility model is suitable for a maglev line. The smoothness of the rotation of the bridge bearing can be improved by applying industrial lubricant to the side of the protrusion of the lower bearing plate opposite to the limit plate, and by using chrome plating, nickel-phosphorus alloy plating or mirror-finished stainless steel plate coating on the corresponding part of the spherical wear-resistant plate; the smoothness of the sliding of the bridge bearing can be improved by using chrome plating, nickel-phosphorus alloy plating or mirror-finished stainless steel plate coating on the corresponding part of the flat wear-resistant plate.

[0025] (5) The bridge bearing of the utility model suitable for the maglev line has a simple structure and is easy to install. It can not only meet the sliding and rotation requirements of the bridge bearing, so that the bridge bearing can slide or rotate smoothly when the maglev line is in operation, but also greatly reduce its vertical compression deformation, meeting the smoothness requirements of the maglev line. At the same time, the reliability of the bridge bearing is also guaranteed through a simple connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use 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 work.

[0027] Figure 1 It is a schematic diagram of the cross-sectional structure of a bridge support suitable for a maglev line in an embodiment of the utility model;

[0028] Figure 2 It is a side structural schematic diagram of a bridge support suitable for a maglev line in an embodiment of the utility model;

[0029] Figure 3 It is a cross-sectional view and a plan view of a spherical cap liner in an embodiment of the utility model;

[0030] Figure 4 It is a cross-sectional view and a plan view of the lower support plate in the embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the installation of a bridge support in a specific embodiment of the utility model;

[0032] Figure 6 It is a schematic diagram of the installation of a bridge support in another specific embodiment of the utility model.

[0033] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. upper support plate; 101. limit plate; 2. spherical crown lining plate; 201. annular groove; 3. lower support plate; 301. protrusion; 302. annular curved groove; 4. flat wear-resistant plate; 5. spherical wear-resistant plate; 6. connecting piece; 7. sealing ring; 8. pre-bias adjustment device; 801. pre-bias drive assembly; 802. pre-bias driven assembly; 9. first anchor bolt assembly; 10. second anchor bolt assembly; 11. beam body; 12. beam bottom embedded plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] Example:

[0040] See also Figure 1 to Figure 6 The bridge bearing suitable for the maglev line in the preferred embodiment of the utility model includes an upper bearing plate 1, a spherical crown lining plate 2 and a lower bearing plate 3 which are matched in sequence in the vertical direction. The spherical crown lining plate 2 and the upper bearing plate 1 are in a plane match, and the spherical crown lining plate 2 and the lower bearing plate 3 are in a spherical match, so that the bridge bearing can be displaced along the plane to meet the sliding requirements, and can also rotate along the spherical surface to meet the rotation requirements.

[0041] Specifically, in the preferred embodiment, a flat wear-resistant plate 4 is arranged between the spherical crown lining 2 and the upper support plate 1, so that a sliding friction pair is formed between the upper support plate 1 and the spherical crown lining 2; a spherical wear-resistant plate 5 is arranged between the spherical crown lining 2 and the lower support plate 3, so that a rotating friction pair is formed between the spherical crown lining 2 and the lower support plate 3.

[0042] In this embodiment, the flat wear-resistant plate 4 and the spherical wear-resistant plate 5 can reduce the friction coefficient between the bottom surface of the upper bearing plate 1 and the top surface of the spherical crown lining plate 2, and between the bottom surface of the spherical crown lining plate 2 and the top surface of the lower bearing plate 3, making the bridge bearing more likely to slide and rotate.

[0043] Furthermore, the planar wear-resistant plate 4 and / or the spherical wear-resistant plate 5 preferably adopts a high elastic modulus wear-resistant plate with an elastic modulus of not less than 2000Mpa, which can control the vertical compression deformation of the bridge bearing within 1.5mm, especially the vertical compression of the small-tonnage bridge bearing can be controlled within 1mm to meet the smoothness requirements of the ultra-high-speed maglev line.

[0044] In actual setting, a sealing ring 7 is preferably provided between the spherical crown lining 2 and the upper support plate 1, and a sealing ring 7 is preferably provided between the spherical crown lining 2 and the lower support plate 3. The sealing ring is preferably provided on the outside of the flat wear-resistant plate 4 and the spherical wear-resistant plate 5 to prevent dust or debris from entering the connection parts between the spherical crown lining 2 and the upper support plate 1, and between the spherical crown lining 2 and the lower support plate 3, affecting the sliding and rotation of the bridge bearing.

[0045] Preferably, if Figure 3As shown, the plane end of the spherical cap lining plate 2 is provided with an annular groove 201, and the plane wear-resistant plate 4 is embedded in the annular groove 201; Figure 4 As shown, the lower support plate 3 is provided with an annular curved groove 302 , and the spherical wear-resistant plate 5 is embedded in the annular curved groove 302 .

[0046] Furthermore, the corresponding parts of the upper bearing plate 1 and the flat wear-resistant plate 4 are preferably treated by chrome plating, nickel-phosphorus alloy plating or mirror stainless steel plate coating to reduce the friction resistance of the upper bearing plate 1 and the spherical crown lining plate 2 when sliding, so that the bridge bearing can slide more smoothly.

[0047] Similarly, the corresponding parts of the spherical crown lining 2 and the spherical wear-resistant plate 5 are preferably treated by chrome plating, nickel-phosphorus alloy plating or mirror stainless steel plate coating to reduce the friction resistance when the spherical crown lining 2 rotates, so that the bridge bearing can rotate more smoothly.

[0048] Further preferably, the middle parts of the spherical cap lining plate 2 and the lower support plate 3 are respectively provided with a through hole and a blind hole, and the two are connected by a connecting piece 6; the lower part of the connecting piece 6 is tightly connected to the lower support plate 3, and a gap is provided between the upper part of the connecting piece 6 and the spherical cap lining plate 2, so that the spherical cap lining plate 2 can rotate relative to the lower support plate 3. In this embodiment, the connecting piece 6 connects the spherical cap lining plate 2 to the lower support plate 3 to prevent the spherical cap lining plate 2 from being emptied in the case of an over-angle rotation, so that the various components are always in contact and in a working state, and the reliability of the bridge bearing is ensured.

[0049] Preferably, the size of the gap between the connector 6 and the spherical cap lining 2 is calculated based on the normal rotation requirements of the bridge bearing. In a preferred embodiment, the gap between the connector 6 and the spherical cap lining 2 allows the spherical cap lining 2 to rotate by an angle of not less than 0.02 rad.

[0050] In a specific embodiment, the blind hole of the lower support plate 3 is a threaded hole, and the connecting member 6 is preferably a bolt. Preferably, the part of the bolt tightly connected with the lower support plate 3 has a thread, and the part in contact with the spherical cap lining plate 2 has a smooth surface.

[0051] In a preferred embodiment, limit plates 101 are respectively arranged on both sides of the bottom of the upper support plate 1, and the two limit plates 101 extend along the longitudinal direction of the bridge. Figure 2 In actual operation, the bridge bearing is mainly subjected to the load in the longitudinal direction of the bridge, and the limit plate 101 extending in the longitudinal direction of the bridge only limits the sliding displacement of the bridge bearing along the transverse direction of the bridge, so that the bridge bearing moves in the longitudinal direction of the bridge under the load in the longitudinal direction of the bridge, and can also rotate at the same time, to ensure the smoothness of the maglev line.

[0052] Preferably, limit plates 101 may also be provided on both sides of the bottom of the upper bearing plate 1 in the transverse direction of the bridge to limit the sliding of the bridge bearing in the direction of the bridge. Further preferably, limit plates 101 are provided on all sides of the bottom of the upper bearing plate 1 in the transverse direction to limit the plane displacement of the bridge bearing so that the bridge bearing can only rotate.

[0053] Furthermore, protrusions 301 opposite to the limiting plate 101 are provided on both sides of the lower bearing plate 3, and industrial lubricant is applied to the side surfaces of the protrusions 301 opposite to the limiting plate 101 to make the bridge bearing rotate more smoothly.

[0054] Furthermore, pre-bias adjustment devices 8 are provided on both sides of the bottom of the lower support plate 3. Figure 2 As shown, it includes a pre-deflection driving component 801 and a pre-deflection driven component 802, which are used to perform pre-deflection processing on the upper support plate 1.

[0055] In a preferred embodiment, the pre-bias adjustment device 8 can be arranged on both sides of the bottom of the lower support plate 3 in the longitudinal direction of the bridge, so as to adjust the pre-bias amount of the upper support plate 1 along the transverse direction of the bridge; preferably, the pre-bias adjustment device 8 can be arranged on both sides of the bottom of the lower support plate 3 in the transverse direction of the bridge, so as to adjust the pre-bias amount of the upper support plate 1 along the longitudinal direction of the bridge; further, the pre-bias adjustment device 8 can also be arranged on both sides of the longitudinal direction and the transverse direction of the bridge at the same time.

[0056] Preferably, the pre-bias adjustment device 8 further includes a displacement indicating component for displaying the pre-bias amount of the upper support plate 1 .

[0057] Further preferably, the top surface of the upper bearing plate 1 is fixedly connected to the bridge beam 11 through a first anchor assembly 9 , and the bottom surface of the lower bearing plate 3 is fixedly connected to the bridge pier through a second anchor assembly 10 .

[0058] In actual construction, the installation method of the bridge bearing of the utility model when installed on a prefabricated beam includes the following steps:

[0059] (1) Pre-deflect the spherical cap lining plate 2 and the upper support plate 1 according to the required slope of the beam bottom, so that the slope of the upper support plate 1 is consistent with the required slope of the beam bottom, such as Figure 5 As shown;

[0060] In a preferred embodiment, the pre-deflection of the bridge support can be completed during factory assembly or at a construction site. After the pre-deflection is completed, a temporary fixing device is preferably used to fix it.

[0061] (2) The pre-deflected bridge support is connected to the bottom of the beam through the first anchor assembly 9, such as Figure 6 As shown;

[0062] Preferably, a beam bottom embedded plate 12 is provided at the bottom of the prefabricated beam, and the first anchor bolt assembly 9 fixes the upper bearing plate 1 of the bridge bearing to the beam bottom embedded plate 12 .

[0063] Preferably, a high friction coefficient coating is provided between the upper support plate 1 and the beam bottom embedded plate 12 to prevent the upper support plate 1 and the beam bottom embedded plate 12 from slipping and shearing off the first anchor assembly 9 due to insufficient friction coefficient there.

[0064] (3) The second anchor assembly 10 installed at the bottom of the bridge support is fixedly installed on the bridge pier by using the grouting method or the gravity grouting method.

[0065] In actual construction, the installation method of the bridge bearing of the utility model when installed on a cast-in-place beam includes the following steps:

[0066] (1) Pre-deflect the spherical cap lining plate 2 and the upper support plate 1 according to the required slope of the beam bottom, so that the slope of the upper support plate 1 is consistent with the required slope of the beam bottom, such as Figure 5 As shown;

[0067] (2) Using a grouting method or a gravity grouting method to fix the second anchor assembly 10 installed at the bottom of the bridge support on the bridge pier;

[0068] (3) A bridge beam 11 template is set up on the bridge support, and the bridge beam 11 is constructed.

[0069] The utility model is suitable for the bridge bearing of the maglev line, has a simple structure and is easy to install. It can not only meet the sliding and rotation requirements of the bridge bearing, so that the bridge bearing can slide or rotate smoothly when the maglev line is in operation, but also greatly reduce its vertical compression deformation, thus meeting the smoothness requirements of the maglev line. At the same time, the reliability of the bridge bearing is ensured through a simple connection structure.

[0070] It will be easily understood by those skilled in the art that the above description is only 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 shall be included in the protection scope of the present invention.

Claims

1. A bridge bearing suitable for a maglev line, comprising an upper bearing plate, a spherical cap lining plate and a lower bearing plate which are matched and arranged in sequence in a vertical direction, wherein the spherical cap lining plate and the upper bearing plate are in a plane match, and the spherical cap lining plate and the lower bearing plate are in a spherical match, characterized in that: A plane wear-resistant plate is provided between the upper support plate and the spherical cap lining plate, and a spherical wear-resistant plate is provided between the spherical cap lining plate and the lower support plate, wherein the plane wear-resistant plate and / or the spherical wear-resistant plate are high elastic modulus wear-resistant plates with an elastic modulus of not less than 2000Mpa; The spherical crown lining plate and the lower support plate are respectively provided with a through hole and a blind hole in the middle, and the two are connected by a connecting piece; the lower part of the connecting piece is tightly connected to the lower support plate, and a gap is provided between the upper part of the connecting piece and the spherical crown lining plate, so that the spherical crown lining plate can rotate relative to the lower support plate.

2. The bridge support for a maglev line according to claim 1, characterized in that: Sealing rings are respectively arranged between the spherical cap lining plate and the upper support plate, and between the spherical cap lining plate and the lower support plate. The sealing rings are arranged on the outer sides of the planar wear-resistant plate and the spherical wear-resistant plate.

3. The bridge support suitable for a maglev line according to claim 2, characterized in that: Limiting plates are respectively arranged on both sides of the bottom of the upper support plate, and the two limiting plates extend along the bridge direction.

4. The bridge support for a maglev line according to claim 3, characterized in that: Both sides of the lower support plate are provided with protrusions opposite to the limiting plates, and the sides of the protrusions opposite to the limiting plates are coated with industrial lubricant.

5. The bridge support applicable to a maglev line according to any one of claims 1 to 4, characterized in that: The plane end of the spherical cap lining plate is provided with an annular groove, and the plane wear-resistant plate is embedded in the annular groove; The lower support plate is provided with an annular curved groove, and the spherical wear-resistant plate is embedded in the annular curved groove.

6. The bridge support for a maglev line according to claim 5, characterized in that: The corresponding parts of the upper support plate and the flat wear-resistant plate are treated by chrome plating, nickel-phosphorus alloy plating or mirror-finished stainless steel plate coating; and / or, The corresponding parts of the spherical crown lining plate and the spherical wear-resistant plate are treated by chrome plating, nickel-phosphorus alloy plating or mirror-finished stainless steel plate pasting.

7. The bridge support for a maglev line according to any one of claims 1 to 4 and 6, characterized in that: The top surface of the upper bearing plate is fixedly connected to the bridge beam body through a first anchor bolt assembly, and the bottom surface of the lower bearing plate is fixedly connected to the bridge pier through a second anchor bolt assembly.

8. The bridge support for a maglev line according to any one of claims 1 to 4 and 6, characterized in that: Pre-deflection adjustment devices are arranged on both sides of the bottom of the lower support plate, including a pre-deflection driving component and a pre-deflection driven component, which are used to perform pre-deflection processing on the upper support plate.

9. The bridge support for a maglev line according to claim 8, characterized in that: The pre-bias adjustment device also includes a displacement indicating component for displaying the pre-bias amount of the upper support plate.

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