Medium-low speed magnetic levitation turnout structure and design method thereof

Abstract

The invention relates to a medium-low speed magnetic levitation turnout structure and a design method thereof. Comprising the following steps: reducing the beam body height of the turnout beam to a first preset height; after the height of a beam body of the turnout beam is reduced, the height below the beam of the turnout beam is designed to be reduced to a second preset height, and the method comprises the steps that a driving device is designed to be arranged in a driving beam so that the driving device can adapt to the second preset height below the beam of the turnout beam; on the premise that the rotation centers of a driving beam, a first driven beam and a second driven beam are not changed, a hinged shaft rotation device connected between a first walking trolley below the driving beam and a second walking trolley below the first driven beam is moved out from the position below the second walking trolley; and after the hinged shaft slewing device is moved out of the second walking trolley, the structure of the second walking trolley is adjusted so as to adapt to a second preset height below the turnout beam. The medium-low-speed magnetic levitation turnout structure designed by the invention can be applied to a site with limited space height.

Description

Technical Field

[0001] The disclosed embodiments relate to the technical field of maglev rail transit, and in particular to a medium- and low-speed maglev turnout structure and a design method thereof. Background Art

[0002] Medium and low speed maglev turnouts are suitable for transportation connections within large and medium-sized cities, between short-distance cities, and in tourist attractions. Since maglev trains have the advantages of high speed, low consumption, environmental protection, and safety, they have a very broad prospect. In the process of developing medium and low speed maglev turnouts, single-opening turnouts, three-opening turnouts, single-crossing turnouts, cross-crossing turnouts and other medium and low speed maglev series turnout products have been developed one after another.

[0003] In the related technology, the overall height of the medium and low speed maglev turnout beam is relatively high, and the turnout beam has a large tonnage, so it needs special lifting equipment for lifting operations. Therefore, the turnout is generally installed in an open field. If it is limited by the height of the field, especially when used in a tunnel, the turnout equipment will not be applied to the line.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide background or context for the technical solutions of the present disclosure stated in the claims. The description herein is not admitted to be prior art by virtue of being included in this section. Summary of the invention

[0006] The purpose of the embodiments of the present disclosure is to provide a medium- and low-speed maglev turnout structure and a design method thereof, thereby overcoming one or more problems caused by the limitations and defects of the relevant technology at least to a certain extent.

[0007] According to a first aspect of an embodiment of the present disclosure, a method for designing a medium- and low-speed maglev turnout structure is provided, comprising:

[0008] The height of the designed turnout beam is lowered to a first preset height; wherein the turnout beam comprises an active beam, a first driven beam and a second driven beam arranged between a fixed end beam and a movable end beam, first running trolleys are arranged at both ends below the active beam, and a second running trolley is arranged below the first driven beam;

[0009] After the height of the turnout beam is lowered, the height under the turnout beam is designed to be lowered to a second preset height, including: designing a driving device to be arranged in the active beam so that the driving device can adapt to the second preset height under the turnout beam; wherein, when the driving device drives the active beam to move, the first traveling trolley and the second traveling trolley are driven to move;

[0010] Based on the premise that the active beam, the first driven beam and the second driven beam all have their respective rotation centers unchanged, the hinge shaft rotation device connecting the first traveling trolley below the active beam and the second traveling trolley below the first driven beam is moved out from below the second traveling trolley;

[0011] After the hinge shaft rotating device is moved out from the second traveling trolley, the structure of the second traveling trolley is adjusted to adapt to the second preset height under the beam of the turnout beam.

[0012] In one embodiment of the present disclosure, the design reduces the height of the turnout beam to a first preset height, including:

[0013] A third traveling trolley is added below the active beam in the turnout beam, and then through finite element analysis, a first preset height to which the beam body of the turnout beam should be lowered is obtained.

[0014] In one embodiment of the present disclosure, the third traveling trolley is located at a central position below the active beam in the turnout beam.

[0015] In one embodiment of the present disclosure, the driving device includes a driving guide slot, a reducer, a motor and a driving arm;

[0016] The driving guide groove is located below the active beam, the reducer is arranged in the active beam, and the reducer is connected to the motor, the motor is connected to the driving arm, and a crank arm roller is connected below the driving arm. When the motor drives the driving arm to move, the crank arm roller below the driving arm moves along the driving guide groove.

[0017] In one embodiment of the present disclosure, the driving device further includes a base, the base is disposed below the active beam, and the driving guide groove is disposed on the base.

[0018] In one embodiment of the present disclosure, based on the premise that the active beam, the first driven beam and the second driven beam all have their own rotation centers unchanged, a hinge shaft rotation device connecting the first traveling trolley below the active beam and the second traveling trolley below the first driven beam is moved out from below the second traveling trolley, including:

[0019] The rotation center of the active beam is enlarged into a rotation circle, and the hinge shaft rotation device moves along the rotation circle, so that the first traveling trolley travels along the original track, so that the rotation center of the active beam remains unchanged.

[0020] In one embodiment of the present disclosure, the center of the rotation circle is concentric with the rotation center of the active beam.

[0021] In one embodiment of the present disclosure, after the hinge shaft rotating device is moved out from the second traveling trolley, the structure of the second traveling trolley is adjusted to adapt to the second preset height under the turnout beam, including:

[0022] The wheels of the second traveling trolley are designed to pass through between the trolley frames to reduce the height of the second traveling trolley.

[0023] In one embodiment of the present disclosure, the design reduces the height of the turnout beam to a first preset height, and then further includes:

[0024] The height of the first traveling trolley is adjusted so that the height of the first traveling trolley adapts to a second preset height under the turnout beam.

[0025] According to a second aspect of an embodiment of the present disclosure, a medium- and low-speed maglev turnout structure is provided. According to the design method of the medium- and low-speed maglev turnout structure in any of the above embodiments, a turnout structure is designed, and the turnout structure includes:

[0026] Fixed end beams and movable end beams are arranged opposite to each other;

[0027] A turnout beam arranged between the fixed end stack beam and the movable end stack beam, the turnout beam comprising an active beam, a first driven beam and a second driven beam arranged between the fixed end stack beam and the movable end stack beam, first running trolleys are respectively arranged at both ends below the active beam, and a second running trolley is arranged below the first driven beam; wherein the active beam is close to the movable end stack beam;

[0028] A driving device is arranged below the active beam, and when the driving device drives the active beam to move, the first traveling trolley and the second traveling trolley are driven to move;

[0029] The hinge shaft rotating device is arranged between the first traveling trolley below the active beam and the second traveling trolley below the first driven beam.

[0030] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0031] In the embodiment of the present disclosure, through the design method of the medium and low speed maglev turnout structure, the height of the turnout beam is lowered to adapt to the first preset height of the beam of the adjusted turnout beam; the driving device is adjusted, the hinge shaft rotating device is moved out from under the second running trolley, and then the structure of the second running trolley is adjusted to make the second running trolley adapt to the second preset height under the turnout beam. Through this design method, a medium and low speed maglev turnout structure suitable for space height limitation can be designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0033] Figure 1 A flowchart showing a method for designing a medium- and low-speed maglev turnout structure in an exemplary embodiment of the present disclosure;

[0034] Figure 2 A schematic diagram of the structure of a conventional medium and low speed maglev turnout in the related art is shown;

[0035] Figure 3 A schematic cross-sectional view of a conventional medium and low speed maglev turnout driving part in the related art is shown;

[0036] Figure 4 A schematic diagram showing the three-point centering principle of a turnout in the related art is shown;

[0037] Figure 5 A front view showing a maglev turnout hinge shaft rotating device according to an exemplary embodiment of the present disclosure is shown;

[0038] Figure 6 In the exemplary embodiment of the present disclosure, Figure 5 Left view of

[0039] Figure 7 A schematic diagram of a low-speed maglev turnout structure in an exemplary embodiment of the present disclosure is shown;

[0040] Figure 8 A schematic diagram showing a structure in which a third traveling trolley is added below the active beam in an exemplary embodiment of the present disclosure;

[0041] Fig. 9 A schematic diagram showing a comparison between a cross section of a conventional maglev turnout beam of an exemplary embodiment of the present disclosure and a cross section of a center beam maglev turnout beam of the present disclosure;

[0042] Fig.10 A schematic cross-sectional view of a low-speed maglev turnout driving portion in an exemplary embodiment of the present disclosure is shown;

[0043] Fig.11 A front view showing a concentric circle swivel structure of a swivel center of a turnout beam according to an exemplary embodiment of the present disclosure;

[0044] Fig.12 In the exemplary embodiment of the present disclosure, Fig.11 A top view of

[0045] Fig.13 A schematic structural diagram of a second traveling trolley of an exemplary embodiment of the present disclosure is shown;

[0046] Fig.14 A schematic diagram showing the forward movement of the turnout rotation centering structure according to an exemplary embodiment of the present disclosure is shown;

[0047] Fig.15 A schematic diagram showing a second traveling trolley of a conventional magnetic levitation turnout in the related art;

[0048] Fig.16 A schematic diagram showing a second traveling carriage of a magnetic levitation switch according to an exemplary embodiment of the present disclosure is shown.

[0049] In the figure: 100, fixed end stack beam; 200, movable end stack beam; 300, turnout beam; 310, active beam; 320, first driven beam; 330, second driven beam; 400, driving device; 410, motor; 420, reducer; 430, driving arm; 440, driving guide groove; 500, first running trolley; 600, second running trolley; 700, third running trolley; 800, hinge shaft rotating device; 900, locking unit; 1000, base. DETAILED DESCRIPTION

[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0051] In addition, the accompanying drawings are only schematic illustrations of the embodiments of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0052] In the related technology, Figure 2 This is a schematic diagram of the conventional medium and low speed maglev turnout structure. Figure 2 It can be seen that the reason why the overall height of the turnout beam 300 is relatively high is that the overall height of the turnout beam 300 is relatively high and the space below the turnout beam 300 is relatively large, resulting in low space utilization below the turnout beam 300. Secondly, the structure of the traveling trolley itself is relatively high.

[0053] The main reason for the high height of the turnout beam 300 is that the support points of the turnout beam 300 are spaced far apart. To ensure the rigidity and strength of the turnout beam 300, the height of the turnout beam 300 is designed to be relatively high according to calculations. The space below the turnout beam 300 is relatively large, and the main reason for the low space utilization is the rotation center of the drive device 400 and the turnout beam 300.

[0054] For the driving device 400, if Figure 3 As shown, since the crank-driven turnout motor reducer is located just below the turnout beam 300, and the appropriate motor reducer has a relatively large height dimension, it occupies the space below the turnout beam 300 and is difficult to reduce the height.

[0055] For the rotation center of the turnout beam 300, Figure 4 As shown, the operating principle of the conventional maglev turnout is the movement principle of the crank rocker mechanism. The three rockers L1, L2, and L3 represent the second driven beam 330, the first driven beam 320, and the active beam 310 respectively. The crank F represents the driving device 400. Each rocker has its own fixed rotation center O1, O2, and O3. The rotation of the crank F drives the rocker to move, thereby completing the switching of the turnout beam 300.

[0056] Since each turnout beam 300 has its own fixed rotation center, Figure 2 The rotation center O3 of the middle hinge shaft rotating device 800 is just located below the second traveling trolley 600. In order to leave enough installation space for the rotation center O3 of the hinge shaft rotating device 800, the second traveling trolley 600 needs to be raised to avoid it. Figure 5 .

[0057] The height of the second trolley 600 cannot be lowered, mainly to meet Figure 5 The height requirement of the hinged shaft rotating device is 800.

[0058] Based on the above technical problems, this exemplary embodiment first provides a design method for a medium and low speed maglev turnout structure. Figure 1 As shown in , the method may include: steps S101 to S104.

[0059] Among them, step S101: design to lower the beam height of the turnout beam 300 to a first preset height; wherein the turnout beam 300 includes an active beam 310, a first driven beam 320 and a second driven beam 330 arranged between a fixed end stack beam 100 and a movable end stack beam 200, and a first running trolley 500 is respectively arranged at both ends below the active beam 310, and a second running trolley 600 is arranged below the first driven beam 320.

[0060] Step S102: After the height of the turnout beam 300 is lowered, the design is to lower the height under the turnout beam to a second preset height, including: designing to set the driving device 400 in the active beam 310 so that the driving device 400 can adapt to the second preset height under the beam of the turnout beam 300; wherein, when the driving device 400 drives the active beam 310 to move, it drives the first running trolley 500 and the second running trolley 600 to move.

[0061] Step S103: Based on the premise that the active beam 310, the first driven beam 320 and the second driven beam 330 all have their own rotation centers that remain unchanged, the hinged axis rotation device 800 connecting the first traveling trolley 500 below the active beam 310 and the second traveling trolley 600 below the first driven beam 320 is moved out from under the second traveling trolley 600.

[0062] Step S104 : After the hinge shaft rotating device 800 is moved out from the second traveling trolley 600 , the structure of the second traveling trolley 600 is adjusted to adapt to the second preset height under the turnout beam 300 .

[0063] By the above-mentioned design method of the medium- and low-speed maglev turnout structure, the height of the turnout beam 300 is lowered to adapt to the first preset height of the beam of the adjusted turnout beam 300; the driving device 400 is adjusted, the hinge shaft rotating device 800 is moved out from under the second traveling trolley 600, and then the structure of the second traveling trolley 600 is adjusted to make the second traveling trolley 600 adapt to the second preset height under the turnout beam 300. By this design method, a medium- and low-speed maglev turnout suitable for space height limitation can be designed.

[0064] Next, we will refer to Figures 1 to 16 The various parts of the design method of the medium- and low-speed maglev turnout structure in this example implementation are described in more detail.

[0065] like Figure 2 As shown, the turnout structure includes a fixed end stack beam 100 and a movable stack beam that are relatively arranged, and a turnout beam 300 that is arranged between the fixed end stack beam 100 and the movable end stack beam 200, and the turnout beam 300 includes an active beam 310 and a first driven beam 320 and a second driven beam 330. The active beam 310, the first driven beam 320 and the second driven beam 330 are overlapped and connected with each other in sequence, the active beam 310 is close to the movable end stack beam 200, and the second driven beam 330 is close to the fixed end stack beam 100. In order to design a medium and low speed magnetic levitation turnout structure suitable for space height limitation in the present disclosure, four steps from step S101 to step S104 are adopted to achieve it. As shown in FIG. Figure 1 As shown, the details are as follows:

[0066] In step S101, the height of the turnout beam 300 is lowered to a first preset height, which is calculated by finite element analysis. Specifically, a third traveling trolley 700 is added below the active beam 310 in the turnout beam 300, and then the first preset height to be lowered of the turnout beam 300 is calculated and designed by finite element analysis.

[0067] It should be noted that if Figure 7 and Figure 8As shown, the added third trolley 700 supports the turnout beam 300, so that the turnout beam 300 can meet its stiffness and strength requirements. The finite element analysis method can be understood with reference to the prior art, and this disclosure will not elaborate on this. Adding the third trolley 700 that plays a supporting role can reduce the height of the beam body of the turnout beam 300. After the height of the beam body of the turnout beam 300 is reduced, the weight of the turnout beam 300 is also reduced, which is beneficial to the lifting operation.

[0068] like Fig. 9 As shown, after the height of the medium and low speed turnout beam 300 of the present disclosure is reduced, the cross section of the turnout beam 300 is significantly different from the cross section of the conventional maglev turnout in the related art. As can be seen from the figure, the overall height of the turnout beam 300 in the present disclosure is reduced by H compared with the overall height of the conventional maglev turnout in the related art.

[0069] After the design lowers the beam height of the turnout beam 300 to the first preset height, the first traveling trolleys 500 located at the lower ends of the active beam 310 need to be adjusted to adapt to the turnout beam 300 after the beam height is lowered to the first preset height.

[0070] In step S102, if Figure 7 As shown, after the height of the turnout beam 300 is lowered to the first preset height, the height below the turnout beam 300 is lowered to the second preset height, including: arranging the driving device 400 in the active beam 310 to reduce the space below the turnout beam 300. The driving device 400 is used to drive the first traveling trolley 500 and the second traveling trolley 600 to move when the driving device 400 drives the active beam 310 to move, thereby completing the switching of the active beam 310, the first driven beam 320 and the second driven beam 330.

[0071] It is understandable that if Fig.10 As shown, the driving device 400 includes a driving guide groove 440, a reducer 420, a motor 410 and a driving arm 430; the driving guide groove 440 is located below the active beam 310, the reducer 420 is arranged in the active beam 310, and the reducer 420 is connected to the motor 410, the motor 410 is connected to the driving arm 430, and a crank arm roller is connected below the driving arm 430. When the motor 410 drives the driving arm 430 to move, the crank arm roller below the driving arm 430 moves along the driving guide groove 440.

[0072] It should be noted that installing the reducer 420 in the active beam 310 can reduce the height under the turnout beam 300 and avoid the risk of the reducer 420 being immersed in water.

[0073] In addition, the driving device 400 further includes a base 1000 . The base 1000 is disposed below the active beam 310 , and the driving guide groove 440 is disposed on the base 1000 .

[0074] In step S103, during the switching process of the turnout beam 300, the active beam 310, the first driven beam 320 and the second driven beam 330 in the turnout beam 300 all have their own rotation centers, and the rotation centers corresponding to the active beam 310, the first driven beam 320 and the second driven beam 330 remain unchanged. Fig.14 As shown, the original turnout beam 300 is changed to rotate around a point, and the turnout beam 300 moves along the guide track, and the center of the guide track is the centering point, so as to ensure that the motion principle of the crank rocker mechanism of the magnetic levitation turnout remains unchanged, and the active beam 310, the first driven beam 320 and the second driven beam 330 all have their own fixed rotation centers. The rotation center 03 of the active beam 310 is enlarged into a rotation circle 04, and the hinge shaft rotation device 800 moves along the rotation circle 04 which is concentric with the rotation center of the active beam 310, so that the first running trolley 500 runs along the original track, ensuring that the rotation center of the active beam 310 remains unchanged, as shown in FIG. Fig.11 and Fig.12 The hinge shaft rotating device 800 is moved out from directly below the second traveling trolley 600 , thereby providing conditions for lowering the height under the turnout beam 300 .

[0075] It should be noted that the forward movement of the rotating centering structure is achieved by taking the rotating circle as the guide track and rotating around its rotation center.

[0076] In step S104, Fig.15 The figure shows the structure diagram of the second running trolley 600 of the conventional maglev turnout in the related art. Fig.15 It can be seen that the overall height of the second traveling trolley 600 is relatively high. Therefore, the structure of the second traveling trolley 600 needs to be adjusted. Fig.13 As shown, by adjusting the structure of the second traveling trolley 600, there is no need to avoid the installation position of the rotation center, thereby reducing the height under the turnout beam 300. Fig.16 As shown, the wheels of the second traveling trolley 600 are designed to pass through the trolley frames to reduce the height of the second traveling trolley 600. After the height of the second traveling trolley 600 is reduced, the height under the entire turnout beam 300 is reduced, which is suitable for use in line switching with height restrictions such as tunnels.

[0077] It should be noted that, when the design lowers the height of the turnout beam 300 to the first preset height, it is also necessary to adjust the height of the first traveling trolley 500 to adapt to the turnout beam 300 whose height under the beam is lowered to the second preset height.

[0078] This example embodiment also provides a medium and low speed magnetic levitation turnout structure, referring to Figure 7 and Figure 8 The turnout structure is designed based on the design method of the low-speed maglev turnout structure in the above embodiment.

[0079] The turnout structure includes: a fixed end stack beam 100 and a movable end stack beam 200 arranged opposite to each other; a turnout beam 300 arranged between the fixed end stack beam 100 and the movable end stack beam 200, the turnout beam 300 includes an active beam 310, a first driven beam 320 and a second driven beam 330 arranged between the fixed end stack beam 100 and the movable end stack beam 200, a first running trolley 500 is respectively arranged at both ends below the active beam 310, and a second running trolley 600 is arranged below the first driven beam 320; wherein the active beam 310 is close to the movable end stack beam 200; a driving device 400 is arranged below the active beam 310, when the driving device 400 drives the active beam 310 to move, it drives the first running trolley 500 and the second running trolley 600 to move; a hinge shaft rotating device 800 is arranged between the first running trolley 500 below the active beam 310 and the second running trolley 600 below the first driven beam 320.

[0080] In addition, the turnout structure also includes a locking device, which is arranged at both ends below the active beam 310 and is used to lock the active beam 310 after it completes switching, so that the train on the turnout beam 300 can pass stably.

[0081] 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" and the like in the above description 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 embodiments of the present disclosure 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 embodiments of the present disclosure.

[0082] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0083] In the embodiments of the present disclosure, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0084] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0086] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A design method for a medium- and low-speed maglev turnout structure, characterized in that: include: The design lowers the height of the turnout beam to a first preset height; wherein the turnout beam comprises an active beam, a first driven beam and a second driven beam arranged between a fixed end beam and a movable end beam, first traveling trolleys are arranged at both ends below the active beam, and a second traveling trolley is arranged below the first driven beam; After the height of the turnout beam is lowered, the height under the turnout beam is designed to be lowered to a second preset height, including: designing a driving device to be arranged in the active beam so that the driving device can adapt to the second preset height under the turnout beam; wherein, when the driving device drives the active beam to move, the first traveling trolley and the second traveling trolley are driven to move; Based on the premise that the active beam, the first driven beam and the second driven beam all have their respective rotation centers unchanged, the hinge shaft rotation device connecting the first traveling trolley below the active beam and the second traveling trolley below the first driven beam is moved out from below the second traveling trolley; After the hinge shaft rotating device is moved out from the second traveling trolley, the structure of the second traveling trolley is adjusted to adapt to the second preset height under the beam of the turnout beam.

2. The design method of the medium and low speed maglev turnout structure according to claim 1 is characterized in that: The design reduces the height of the turnout beam to a first preset height, including: A third traveling trolley is added below the active beam in the turnout beam, and then through finite element analysis, a first preset height to which the beam body of the turnout beam should be lowered is obtained.

3. The design method of the medium and low speed maglev turnout structure according to claim 1 is characterized in that: The third traveling trolley is located at a central position below the active beam in the turnout beam.

4. The design method of the medium and low speed maglev turnout structure according to claim 1 is characterized in that: The driving device comprises a driving guide groove, a reducer, a motor and a driving arm; The driving guide groove is located below the active beam, the reducer is arranged in the active beam, and the reducer is connected to the motor, the motor is connected to the driving arm, and a crank arm roller is connected below the driving arm. When the motor drives the driving arm to move, the crank arm roller below the driving arm moves along the driving guide groove.

5. The design method of the medium and low speed maglev turnout structure according to claim 4 is characterized in that: The driving device further comprises a base, wherein the base is arranged below the active beam, and the driving guide groove is arranged on the base.

6. The design method of a medium- and low-speed maglev turnout structure according to claim 1, characterized in that: Based on the premise that the active beam, the first driven beam and the second driven beam all have their own rotation centers unchanged, the hinge shaft rotation device connecting the first traveling trolley below the active beam and the second traveling trolley below the first driven beam is moved out from below the second traveling trolley, including: The rotation center of the active beam is enlarged into a rotation circle, and the hinge shaft rotation device moves along the rotation circle, so that the first traveling trolley travels along the original track, so that the rotation center of the active beam remains unchanged.

7. The design method of the medium and low speed maglev turnout structure according to claim 6 is characterized in that: The center of the revolution circle is concentric with the revolution center of the active beam.

8. The design method of a medium and low speed maglev turnout structure according to claim 1, characterized in that: After the hinge shaft rotating device is moved out from the second traveling trolley, the structure of the second traveling trolley is adjusted to adapt to the second preset height under the turnout beam, including: The wheels of the second traveling trolley are designed to pass through between the trolley frames to reduce the height of the second traveling trolley.

9. The design method of a medium and low speed maglev turnout structure according to claim 1, characterized in that: The design reduces the height of the turnout beam to a first preset height, and then includes: The height of the first traveling trolley is adjusted so that the height of the first traveling trolley adapts to the second preset height under the turnout beam.

10. A medium- and low-speed maglev turnout structure, characterized in that: According to the design method of a medium- and low-speed maglev turnout structure according to any one of claims 1 to 9, a turnout structure is designed, and the turnout structure comprises: Fixed end beams and movable end beams are arranged opposite to each other; A turnout beam arranged between the fixed end stack beam and the movable end stack beam, the turnout beam comprising an active beam, a first driven beam and a second driven beam arranged between the fixed end stack beam and the movable end stack beam, first running trolleys are respectively arranged at both ends below the active beam, and a second running trolley is arranged below the first driven beam; wherein the active beam is close to the movable end stack beam; A driving device is arranged below the active beam, and when the driving device drives the active beam to move, the first traveling trolley and the second traveling trolley are driven to move; The hinge shaft rotating device is arranged between the first traveling trolley below the active beam and the second traveling trolley below the first driven beam.

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