Maglev track beam, maglev track beam forming system and forming method

Abstract

The present invention discloses a maglev track beam, a maglev track beam forming system and a forming method. The maglev track beam comprises a beam body and supports at both ends of the beam body. The beam body and the supports are integrally cast and formed by concrete. The bottom surface of the beam body is suspended and located above the bottom surface of the support. The outer contour line of the toe cross section of the support is an arc shape. The present invention sets supports at both ends of the beam body, and sets the outer contour line of the toe cross section of the support to an arc shape, so that when the track beam is formed, a set of forming systems can be used to form a maglev track beam with a support bottom surface with different inclination angles, thereby reducing the forming cost of the maglev track beam.

Description

Technical Field

[0001] The present invention belongs to the technical field of maglev tracks, and in particular relates to a maglev track beam, a maglev track beam forming system and a forming method. Background Art

[0002] Magnetic levitation technology uses magnets to generate lift and thrust, allowing the vehicle to float very close to the "guide rail". Since there is no friction from physical contact, most of the power is used to overcome air resistance. In terms of operating energy consumption, high-speed maglev has obvious advantages over high-speed railways.

[0003] The track beam of the maglev train is the basis for the operation of high-speed maglev trains. The track beam is a high-precision component in the maglev track structure system. In high-speed maglev technology, since the suspension height and guide clearance of high-speed maglev trains are only 8-10mm, the construction quality and installation quality of the track are extremely high.

[0004] Maglev track beams are divided into straight beams, curved beams and space curved beams according to their line shape. In addition to being an arc with a certain radius of curvature on the horizontal plane, the space curved beam is also curved in the Z direction. Due to its structural characteristics and requirements on processing accuracy, it further brings great difficulties to the processing and assembly of the space curved beam. Summary of the invention

[0005] The purpose of the present invention is to provide a maglev track beam, a maglev track beam forming system and a forming method, so as to solve the problems existing in the processing of the maglev track beam.

[0006] The present invention is achieved through the following technical solutions:

[0007] The maglev track beam comprises a beam body and supports at both ends of the beam body, wherein the beam body and the supports are integrally cast by concrete, the bottom surface of the beam body is suspended and located above the bottom surface of the supports, and the outer contour line of the toe cross section of the supports is an arc shape.

[0008] In some embodiments, an outer contour line of a toe cross-section of the beam body is in an arc shape.

[0009] In some embodiments, the cross-section of the beam body is π-shaped.

[0010] In some embodiments, magnetic levitation functional parts are respectively provided on both sides of the beam surface of the magnetic levitation track beam, and the magnetic levitation functional parts are integrally formed on the beam body and the support when the magnetic levitation track beam is cast.

[0011] On the other hand, the present invention also provides a maglev track beam forming system, comprising:

[0012] A bottom mold assembly, the bottom mold assembly is arranged on the base, and includes a beam body bottom mold and support bottom molds located at both ends of the beam body bottom mold, and the support bottom mold is arranged to be able to rotate around the central axis of the base;

[0013] A side mold assembly, the side mold assembly comprising two side molds arranged opposite to each other, the cross section of the side molds corresponding to the toe position of the magnetic levitation track beam is an arc shape;

[0014] The end mold assembly includes two end mold plates arranged at both ends of the side mold assembly and two support end mold plates located at both ends of the beam bottom mold.

[0015] In some embodiments, the side mold assembly also includes a functional component template for positioning the magnetic levitation functional component.

[0016] In some embodiments, an inner mold assembly is also included, and the inner mold assembly is arranged on the bottom mold of the beam body to form a beam body with a π-shaped structure.

[0017] In some embodiments, a bottom mold driving member is also included, wherein the support bottom mold is rotatably connected to the base via a rotating shaft, and the bottom mold driving member is used to drive the support bottom mold to rotate around the rotating shaft.

[0018] In some embodiments, it also includes two groups of side mold bases arranged opposite to each other, the side mold bases are respectively arranged on the side mold bases and are slidably connected with the side mold bases, and a side mold driving component is arranged between the side mold bases and the side molds, and the side mold driving component is used to drive the side mold to move along the lateral direction of the track beam.

[0019] In some embodiments, a slide rail is provided on the side mold base, and the guide surface of the slide rail is inclined downward and outward along the lateral direction of the molding system. A slider that cooperates with the slide rail is provided on the side mold plate, and the slider is cooperated with the slide rail.

[0020] In some embodiments, an end mold base is respectively arranged at the position where the end mold plate is located, and one end of the end mold plate is arranged on the end mold base and is connected to the end mold base through a pivot sliding fit, so that the end mold plate can rotate around the pivot on the end mold base and slide on the end mold base;

[0021] It also includes an end mold driving assembly, which includes a first end mold driving member and a second end mold driving member, which is used to drive the end mold plate to slide and rotate on the end mold base.

[0022] In some embodiments, the first end mold driving member is connected to a position on the end mold plate close to the end mold base, and the second end mold driving member is connected to a position on the end mold plate away from the end mold base.

[0023] On the other hand, the present invention also provides a method for forming a magnetic levitation track beam, comprising the following steps:

[0024] Adjust the support bottom mold to the same angle as the bottom surface of the formed maglev track beam support, then close the side molds on both sides, and position and install the maglev functional parts through the functional parts molds, install the support end molds, and then close the end molds at both ends;

[0025] After pouring is completed, the end templates at both ends are demoulded to both ends, the connection between the functional part template and the maglev functional part is removed, and the functional part template is demoulded, and then the side templates on both sides are slid to both sides to demould, and the formed maglev track beam is lifted out of the forming system.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] 1) The present invention arranges supports at both ends of the beam body, and sets the outer contour line of the toe cross section of the support to be an arc shape, so that when the track beam is formed, a set of forming system can be used to form a magnetic levitation track beam with a support bottom surface with different inclination angles, thereby reducing the forming cost of the magnetic levitation track beam.

[0028] 2) Based on the structural characteristics of the maglev track beam, the forming system is configured to have a beam body bottom mold for forming the beam body and a support bottom mold for forming the support, and the support bottom mold is configured to be a rotatable structure so that it can be flexibly adjusted according to the forming requirements of the support bottom surface with different inclination angles. At the same time, in conjunction with the arc-shaped side mold, the forming of the maglev track beam with the support bottom surface with different inclination angles can be achieved through a set of forming system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of the structure of the magnetic levitation track beam of the present invention when the transverse slope angle is 0° (magnetic levitation functional parts are not provided).

[0031] Figure 2 for Figure 1 Schematic diagram of the cross section at the beam body of the central maglev track beam.

[0032] Figure 3 This is a schematic diagram of the structure of the magnetic levitation track beam when the transverse slope angle is 12°.

[0033] Figure 4 for Figure 3 Schematic diagram of the cross section at the beam body of the central maglev track beam.

[0034] Figure 5 This is a front view of the structure of the magnetic levitation track beam forming system of the present invention.

[0035] Figure 6 It is a partial schematic diagram of the structure of the magnetic levitation track beam forming system of the present invention.

[0036] Figure 7 It is a side view of the structure of the magnetic levitation track beam forming system of the present invention.

[0037] Figure 8 It is a schematic cross-sectional view of the side template at the support forming position in the magnetic levitation track beam forming system of the present invention.

[0038] Fig. 9 It is a schematic structural diagram of the support bottom mold of the magnetic levitation track beam forming system of the present invention in a horizontal state.

[0039] Fig.10 It is a structural schematic diagram of the support bottom mold of the magnetic levitation track beam forming system of the present invention when it is at a certain angle.

[0040] Fig.11 It is a schematic structural diagram of the end mold assembly of the magnetic levitation track beam forming system of the present invention in the mold opening state.

[0041] Fig.12 Schematic diagram of the structure of the magnetic levitation functional component in an embodiment of the present invention.

[0042] Fig.13 It is a schematic diagram of the structure of the functional component template in an embodiment of the present invention.

[0043] in:

[0044] 10. maglev track beam, 11. beam body, 12. support, 13. toe, 14. maglev functional parts, 141. L-shaped steel plate, 142. stator sleeve;

[0045] 21, base, 211, entrance passage;

[0046] 221, beam body bottom mold, 222, support bottom mold, 223, bottom mold driving member;

[0047] 241, side mold plate, 242, side mold base, 243, side mold driving member, 244, slide rail, 245, slider;

[0048] 251, end mold plate, 252, end mold base, 253, first end mold driving member, 254, second end mold driving member, 255, support base;

[0049] 26. Support end formwork;

[0050] 27. Functional component template, 271. Positioning portion, 272. Positioning side;

[0051] 28. Inner mold assembly. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0053] Usually, according to the actual needs of spatial curved beams, they are usually set to have a transverse slope angle of 0° to 12°. In order to meet the forming requirements of different spatial curved beams, the present invention provides a maglev track beam. Through the structural setting of this maglev track beam, it is possible to use only one set of forming mold system to realize the processing and forming of track beams with different transverse slope angles, thereby greatly reducing the processing cost of the maglev track beam.

[0054] In some embodiments, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the maglev track beam 10 includes a beam body 11 and supports 12 located at both ends of the beam body. The beam body 11 and the supports 12 are integrally cast by concrete. The bottom surface of the beam body is suspended and located above the bottom surface of the supports. The outer contour line of the toe cross section of the supports 12 is set to be an arc shape.

[0055] By arranging supports at both ends of the beam body and setting the outer contour line of the toe cross-section of the support to an arc shape, it is convenient to use a forming system to realize the forming of the magnetic levitation track beam with support bottom surfaces with different inclination angles when the track beam is formed, thereby meeting the forming requirements of spatial curved beams with different transverse slope angles.

[0056] In some embodiments, the outer contour line of the toe cross-section of the beam body 11 is in an arc shape to facilitate the integrated molding of the maglev track beam and the design of the molding system structure.

[0057] In some embodiments, Figure 2 and Figure 4 As shown, the cross section of the beam body 11 is π-shaped.

[0058] In some embodiments, magnetic levitation functional components 14 are respectively provided on both sides of the beam surface of the magnetic levitation track beam. When the magnetic levitation track beam is cast, the magnetic levitation functional components 14 are integrally formed on the beam body and the support.

[0059] On the other hand, the present invention also provides a maglev track beam forming system, which, based on the structural characteristics of the maglev track beam, can be applied to the casting and forming of maglev track beams with different transverse slope angles.

[0060] In some embodiments, Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the maglev track beam forming system includes a bottom mold assembly, a side mold assembly and an end mold assembly.

[0061] The bottom mold assembly is arranged on the base 21, including a beam body bottom mold 221 and a support bottom mold 222 located at both ends of the beam body bottom mold. The support bottom mold 222 is configured to be able to rotate around the central axis of the upper end surface of the base, so that it can adapt to the forming requirements of the maglev track beam with different transverse slope angles by adjusting the inclination angle of the support bottom mold.

[0062] The side mold assembly includes two side mold plates 241 arranged opposite to each other, and the cross section of the side mold plates at the toe position corresponding to the magnetic levitation track beam is an arc shape; the toe position corresponding to the magnetic levitation track beam on the side mold plates is set to an arc shape, so that the support bottom mold can be rotated and adjusted to any desired inclination angle, such as Figure 8 As shown; it is easy to think that the center of the arc part on the side template coincides with the rotation center of the support bottom template, so that the support bottom template can always form a good fit with the side templates on both sides to ensure the forming quality of the maglev track beam.

[0063] The end mold assembly includes two end mold plates 251 arranged at both ends of the side mold assembly and two support end mold plates 26 located at both ends of the beam body bottom mold for molding the inner end surface of the support. The two end mold plates 251 are respectively arranged at both ends of the side mold plate 241. When closing the mold, the end-side closing mold method is adopted. A rubber strip and a gasket can be set at the joint position of the end mold plate and the side mold plate. By adjusting the thickness of the gasket, the angle between the end mold plate and the side mold plate can be adjusted.

[0064] The support end template 26 is arranged opposite to the end template, and is arranged between the beam body bottom template and the support bottom template. The support end template cooperates with the end template and the support bottom template to form the support part of the maglev track beam.

[0065] The forming system is configured to have a beam body bottom mold for forming the beam body and a support bottom mold for forming the support, and the support bottom mold is configured to be a rotatable structure so that it can be flexibly adjusted according to the forming requirements of the support bottom surface with different inclination angles, thereby forming a maglev track beam with different transverse slope angles; at the same time, in conjunction with the arc-shaped side mold plate, the forming of the maglev track beam with different transverse slope angles can be achieved through a set of forming system.

[0066] In some embodiments, the side mold assembly further includes a functional component template 27 for positioning the magnetic levitation functional component. The functional component template 27 is used for positioning and installing the magnetic levitation functional component in the molding system, so that the magnetic levitation functional component can be integrally molded onto the magnetic levitation track beam while the magnetic levitation track beam is being molded, thereby improving the integrity and structural connection strength between the two. The functional component templates can be respectively arranged on the side molds, and the side molds provide a basis for positioning and installing the functional component templates on the molding system.

[0067] Usually, the functional part template is set on the side template to be adjustable up and down, so that when opening the mold, the functional part template can be separated from the maglev track beam and the maglev functional part first, and then the side template can be demoulded outward to avoid interference between the functional part template and the maglev track beam and the maglev functional part during the side template demoulding operation.

[0068] Functional component template 27 is used to position and install the magnetic levitation functional component on the molding system, refer to Fig.12 The magnetic levitation functional part 14 includes an L-shaped steel plate 141 and a stator sleeve 142. The stator sleeve 142 and the L-shaped steel plate 141 are not connected before being formed into a spatial curved beam. Instead, the stator sleeve and the L-shaped steel plate are installed on the spatial curved beam respectively during casting and forming by the magnetic levitation track beam. In order to achieve precise positioning of the magnetic levitation functional part on the forming system, a positioning portion 271 for positioning and installing the stator sleeve is usually provided on the functional part template 27. After the positioning sleeve is fixedly installed on the positioning portion, the stator sleeve can be fixedly installed on the functional part template through the threaded hole on the stator sleeve. A positioning side surface 272 for positioning the L-shaped steel plate is provided on the outer side surface of the functional part template. The position of the L-shaped steel plate on the functional part template is positioned by the positioning side surface to ensure the relative position relationship between the L-shaped steel plate and the stator sleeve. The functional part template structure is as follows: Fig.13 shown.

[0069] In some embodiments, an inner mold assembly 28 is further included, and the inner mold assembly 28 is disposed on the beam body bottom mold 221. The inner mold assembly is disposed according to the π-shaped structure of the beam body, and is used to form a beam body with a π-shaped structure during casting.

[0070] In some embodiments, the molding system further includes a bottom mold driving member 223. The support bottom mold 222 is connected to the base 21 via a rotating shaft. The bottom mold driving member 223 is used to drive the support bottom mold to rotate around the rotating shaft. The bottom mold driving member 223 includes two electric push rods respectively arranged on both sides of the rotating shaft. By controlling the two electric push rods, the tilt angle of the support bottom mold can be adjusted, and the two rotating electric push rods can be used to achieve stable support for the support bottom mold. The bottom mold driving member can achieve rotation adjustment of the support bottom mold within the range of ±12°.

[0071] In some embodiments, the molding system also includes two sets of side mold bases 242 arranged relatively to each other, and the side mold plates 241 are respectively arranged on the side mold bases 242 and are slidably connected with the side mold bases. A side mold driving component 243 is arranged between the side mold bases 242 and the side mold plates 241. The side mold driving component 243 is used to drive the side mold plate to move along the lateral direction of the maglev track beam to realize the closing and opening operations of the side mold plate.

[0072] In some embodiments, a slide rail 244 is provided on the side mold base 242, and the guide surface of the slide rail 244 is gradually inclined downward toward the outside in the transverse direction of the track beam. A slider 245 that cooperates with the slide rail is provided on the side mold plate 241, and the slider 245 is provided on the slide rail 244, so that when the slider moves on the slide rail in a direction away from the track beam, the side mold plate can move downward at the same time. The guide surface of the slide rail is set to an inclined structure, and when the side mold plate is demoulded, the side mold plate moves outward and downward at the same time, which can effectively prevent the interference between the functional component template 27 set on the side mold plate and the cast magnetic levitation track beam.

[0073] In some embodiments, an end mold base 252 is respectively provided at the position where the end mold plate 251 is located, and one end of the end mold plate 251 is provided on the end mold base 252 and is connected to the end mold base 252 through a pivot sliding fit, so that the end mold plate can rotate around the pivot on the end mold base and slide in a horizontal direction on the end mold base.

[0074] The molding system further comprises an end mold driving assembly, which comprises a first end mold driving member 253 and a second end mold driving member 254, for driving the end mold plate to slide and rotate on the end mold base.

[0075] By setting the end template to be connected to the end template base through a pivot rotation and also able to slide on the end template base, during the demoulding operation, the end template can first move outward and separate from the end surface of the maglev track beam, and then flip the end template to achieve demoulding of the end template. Fig.11 This can solve the problem that the end template is easily interfered with the magnetic levitation track beam when opening the mold because the end template is provided with a hole template for forming the end face beam hole on the end face of the track beam.

[0076] In some embodiments, the first end mold driving member 253 is connected to the end mold plate 251 at a position close to the end mold base 252, and the second end mold driving member 254 is connected to the end mold plate 251 at a position away from the end mold plate base 252. In this way, when the end mold plate is demoulded, the first end mold driving member first drives the end mold plate to move horizontally outward to separate the end mold plate from the maglev track beam, and then the second end mold driving member flips the end mold plate.

[0077] End mold support bases 255 are respectively arranged on the outer sides of the end mold plates 251 for supporting the demoulding end mold plates.

[0078] Entrance channels 211 for convenient access are respectively arranged on both sides of the base 21 , so that operators can enter the forming system conveniently, thereby facilitating operations during the forming process of the track beam.

[0079] On the other hand, based on the magnetic levitation track beam forming system in the above embodiment, the present invention also provides a magnetic levitation track beam forming method, comprising the following steps:

[0080] Adjust the support bottom mold to the same angle as the bottom surface of the formed maglev track beam support;

[0081] Then close the side templates on both sides, position and install the magnetic levitation functional parts through the functional parts template, install the support end template, and then close the end templates at both ends;

[0082] After pouring is completed, the end templates at both ends are demoulded to both ends, the connection between the functional part template and the maglev functional part is removed, and the functional part template is demoulded, and then the side templates on both sides are slid to both sides for demoulding, and the formed maglev track beam is lifted out of the forming system to complete the forming of the maglev track beam, clean each template and carry out the forming operation of the next beam according to the above process.

[0083] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0084] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0085] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. Maglev track beam forming system, characterized in that: The maglev track beam includes a beam body and supports at both ends of the beam body, the beam body and the supports are integrally cast by concrete, the bottom surface of the beam body is suspended and located above the bottom surface of the supports, and the outer contour line of the toe cross section of the supports is an arc shape; The maglev track beam forming system includes: A bottom mold assembly, the bottom mold assembly is arranged on the base, and includes a beam body bottom mold and support bottom molds located at both ends of the beam body bottom mold, and the support bottom mold is arranged to be able to rotate around the central axis of the base; A side mold assembly, the side mold assembly comprises two side molds arranged opposite to each other, the cross section of the side mold corresponding to the toe position of the magnetic levitation track beam is an arc shape; the center of the arc portion of the side mold coincides with the rotation center of the support bottom mold; An end mold assembly, the end mold assembly comprising two end mold plates arranged at both ends of the side mold assembly and two support end mold plates located at both ends of the beam body bottom mold; The bottom mold driving member is connected to the base through a rotating shaft, and the bottom mold driving member is used to drive the bottom mold of the support to rotate around the rotating shaft.

2. The maglev track beam forming system according to claim 1, characterized in that: The side mold assembly also includes a functional component template for positioning the magnetic levitation functional component.

3. The maglev track beam forming system according to claim 1, characterized in that: It also includes an inner mold component, which is arranged on the bottom mold of the beam body and is used to form a beam body with a π-shaped structure.

4. The maglev track beam forming system according to any one of claims 1, 2 or 3, characterized in that: It also includes two groups of side form bases arranged opposite to each other, the side formworks are respectively arranged on the side form bases and are slidably connected with the side form bases, and a side form driving component is arranged between the side form bases and the side formwork, and the side form driving component is used to drive the side formwork to move along the lateral direction of the track beam.

5. The maglev track beam forming system according to claim 4, characterized in that: A slide rail is arranged on the side mold base, and the guide surface of the slide rail is inclined downward toward the outside along the transverse direction of the molding system. A slider matched with the slide rail is arranged on the side mold plate, and the slider is matched with the slide rail.

6. The maglev track beam forming system according to any one of claims 1, 2 or 3, characterized in that: An end mold base is respectively arranged at the position where the end mold plate is located, one end of the end mold plate is arranged on the end mold base and is connected to the end mold base through a pivot sliding fit, so that the end mold plate can rotate around the pivot on the end mold base and slide on the end mold base; It also includes an end mold driving assembly, which includes a first end mold driving member and a second end mold driving member, which is used to drive the end mold plate to slide and rotate on the end mold base.

7. The maglev track beam forming system according to claim 6, characterized in that: The first end mold driving member is connected to a position on the end mold plate close to the end mold base, and the second end mold driving member is connected to a position on the end mold plate far from the end mold base.

8. The maglev track beam forming system according to claim 1, characterized in that: The outer contour line of the toe cross section of the beam body is in an arc shape.

9. The maglev track beam forming system according to claim 1, characterized in that: The cross section of the beam body is π-shaped.

10. The maglev track beam forming system according to claim 1, characterized in that: Magnetic levitation functional parts are respectively arranged on both sides of the beam surface of the magnetic levitation track beam. When the magnetic levitation track beam is cast and formed, the magnetic levitation functional parts are integrally formed on the beam body and the support.

11. A method for forming a magnetic levitation track beam, characterized in that: The maglev track beam forming system according to any one of claims 1 to 10 comprises the following steps: Adjust the support bottom mold to the same angle as the bottom surface of the formed maglev track beam support, then close the side molds on both sides, and position and install the maglev functional parts through the functional parts molds, install the support end molds, and then close the end molds at both ends; After pouring is completed, the end templates at both ends are demoulded to both ends, the connection between the functional part template and the maglev functional part is removed, and the functional part template is demoulded, and then the side templates on both sides are slid to both sides to demould, and the formed maglev track beam is lifted out of the forming system.

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