Suspension type maglev train

Abstract

The invention discloses a suspension type maglev train, and relates to the technical field of maglev vehicles, and the suspension type maglev train comprises a train body, a suspension system and a walking system. The suspension system extends in the length direction of a train line and comprises a box girder, and a suspension rail, a motor secondary part and a first permanent magnet array are arranged in the box girder. The walking system comprises a suspension framework, the suspension framework is arranged in the box girder, the suspension framework is connected with the vehicle body, and a suspension electromagnet, a motor primary part and a second permanent magnet array are arranged on the suspension framework. The suspension electromagnet acts with the suspension rail after being electrified to generate suspension force so as to achieve vehicle body suspension, the motor primary part generates electromagnetic induction with the motor secondary part after being electrified to achieve vehicle body traction, and the second permanent magnet array and the first permanent magnet array repel in the same polarity so as to achieve guiding when the vehicle body runs. According to the suspension type maglev train, the problems of vibration noise and abrasion consumption caused by collision contact among the guide wheels, the walking wheels and the rails are solved.

Description

Technical Field

[0001] The present application relates to the technical field of maglev vehicles, and in particular to a suspended maglev train. Background Art

[0002] At present, suspended skyrail trains mainly use rubber wheels for guidance and traction. Specifically, the running rubber wheels are in contact with the inner bottom surface of the track beam, responsible for pushing the train forward and slowing down, and the guide rubber wheels are in contact with the side of the track beam, playing a role in guiding and stabilizing the train on the track. However, the use of rubber wheels for running and guidance will cause large vibration and noise during the operation of the vehicle, and the rubber wheels will wear and emit dust, causing environmental pollution. At the same time, the worn rubber wheels need to be replaced frequently, with high maintenance costs and poor economic efficiency. Summary of the invention

[0003] The purpose of the present application is to provide a suspended maglev train that solves the problems of vibration noise and wear and tear caused by collision and contact between guide wheels, running wheels and tracks.

[0004] To achieve the above objectives, the present application provides a suspended maglev train, comprising:

[0005] Vehicle body;

[0006] A suspension system extending along the length of the train line, comprising a box beam, wherein a suspension rail, a motor secondary part and a first permanent magnet array are arranged inside the box beam;

[0007] The running system includes a suspension frame, which is arranged inside the box beam and connected to the vehicle body. The suspension frame is provided with a suspension electromagnet, a primary part of a motor and a second permanent magnet array;

[0008] Among them, the suspension electromagnet and the suspension rail are arranged relatively to each other along a first direction. After the suspension electromagnet is energized, it acts with the suspension rail to generate a suspension force to realize the suspension of the vehicle body. The primary part of the motor and the secondary part of the motor are arranged relatively to each other along the first direction. After the primary part of the motor is energized, electromagnetic induction is generated with the secondary part of the motor to realize the traction of the vehicle body. The second permanent magnet array and the first permanent magnet array are arranged relatively to each other along a second direction perpendicular to the first direction. The second permanent magnet array and the first permanent magnet array repel each other with the same polarity to realize guidance when the vehicle body is running.

[0009] In some embodiments, the suspended maglev train further includes a braking system, the braking system including:

[0010] A brake skid, used for contacting and abutting against the inner wall of the box beam to achieve friction braking;

[0011] The electric cylinder is installed on the suspension frame and connected to the brake slide to drive the brake slide to move relative to the box beam.

[0012] In some embodiments, the number of both the brake skid and the electric cylinder is several, and the electric cylinder and the brake skid are connected one by one;

[0013] The braking system also includes a controller, which is connected to each electric cylinder for controlling the actions of a corresponding number of electric cylinders according to the braking force requirements of the target level.

[0014] In some embodiments, the brake system further includes a mounting seat, each electric cylinder is installed on the mounting seat at intervals, and the mounting seat is installed on the suspension frame through an elastic member.

[0015] In some embodiments, both ends of the mounting seat along the length direction of the train line are provided with limiting protection wheels, and the limiting protection wheels and the braking skid are used to jointly support the vehicle body to park after the vehicle body falls.

[0016] In some embodiments, the suspended frame includes a frame body, the axis of the frame body is set along the first direction, the frame body is connected to the vehicle body through a suspension assembly, the frame body has a first position, a second position and a third position in sequence along the direction close to the vehicle body, the frame body extends a first arm on both sides of the second direction at the first position, extends a second arm on both sides of the second direction at the second position, and extends a third arm on both sides of the second direction at the third position.

[0017] In some embodiments, the box beam includes a top plate, the inner wall of the top plate is provided with two suspension rails, and the end surfaces of the two first arms away from the vehicle body are provided with suspension electromagnets, so that the two suspension electromagnets are respectively arranged opposite to the two suspension rails along the first direction.

[0018] In some embodiments, the box beam includes two side panels, the inner walls of the two side panels are provided with mounting plates, an avoidance space is provided between the first arm and the second arm, the mounting plate extends to the avoidance space, the motor secondary part is installed on the mounting plate, and the end surfaces of the two first arms close to the vehicle body are provided with motor primary parts, so that the two motor secondary parts are respectively arranged opposite to the two motor secondary parts along the first direction.

[0019] In some embodiments, the two second arms are provided with a second permanent magnetic array at one end away from the frame body, and the inner walls of the two side plates are also provided with a first permanent magnetic array, so that the two second permanent magnetic arrays are respectively arranged opposite to the two first permanent magnetic arrays along the second direction.

[0020] In some embodiments, one end of the two first arms away from the frame body and one end of the two third arms away from the frame body are both provided with stop protection wheels.

[0021] Compared with the above background technology, the suspended maglev train provided in the embodiment of the present application includes a car body, a suspension system and a running system. The suspension system extends along the length direction of the train line, and the suspension system includes a box beam, and the interior of the box beam is provided with a suspension rail, a motor secondary part and a first permanent magnet array; the running system includes a suspension frame, and the suspension frame is arranged inside the box beam, and the suspension frame is connected to the car body, and the suspension frame is provided with a suspension electromagnet, a motor primary part and a second permanent magnet array.

[0022] The suspension electromagnet and the suspension rail are arranged relatively to each other along a first direction. After the suspension electromagnet is energized, it acts with the suspension rail to generate a suspension force to achieve vehicle suspension. The primary part of the motor and the secondary part of the motor are arranged relatively to each other along the first direction. After the primary part of the motor is energized, electromagnetic induction is generated with the secondary part of the motor to achieve vehicle traction. The second permanent magnet array and the first permanent magnet array are arranged relatively to each other along a second direction perpendicular to the first direction. The second permanent magnet array and the first permanent magnet array repel each other with the same polarity to achieve guidance when the vehicle is running.

[0023] The beneficial effects of the suspended maglev train set up in this way mainly include: after the suspension electromagnet is energized, a controllable electromagnetic field is generated, which reacts with the suspension rail (magnetic steel material) to generate a suspension force, and the electromagnetic force control is achieved by controlling the current, and then a stable and controllable suspension is achieved, and the suspension gap is 8~10mm; the variable frequency electric energy is passed to the primary part of the motor, and electromagnetic induction is generated with the secondary part of the motor to control the vehicle speed and acceleration to achieve traction; the second permanent magnet array has the same polarity as the first permanent magnet array, and a certain gap is set between the two. When the vehicle deviates left and right, the gap between the second permanent magnet array and the first permanent magnet array becomes smaller, and the permanent magnetic repulsion is enhanced, which can avoid the vehicle from contacting the box beam and achieve a guiding effect. Therefore, the suspended maglev train of the embodiment of the present application adopts electromagnetic suspension, linear motor traction and permanent magnet guidance to realize the vehicle's completely contactless operation, solves the problems of vibration noise and wear and tear caused by the collision and contact between the traditional guide wheel, running wheel and track, effectively reduces the system energy consumption, and has the advantages of low cost, green and high efficiency, small footprint, strong climbing ability, good line adaptability, contactless, and no wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of a suspended maglev train in an embodiment of the present application;

[0026] Figure 2 for Figure 1 The braking schematic diagram of the suspended maglev train is shown.

[0027] in:

[0028] 10-body;

[0029] 20-suspension system, 21-box beam, 211-top plate, 212-side plate, 213-mounting plate, 22-suspension rail, 23-motor secondary part, 24-first permanent magnet array;

[0030] 30-travel system, 31-suspension frame, 311-frame body, 312-first arm, 313-second arm, 314-third arm, 32-suspension electromagnet, 33-primary part of motor, 34-second permanent magnet array, 35-suspension assembly, 36-stop protection wheel;

[0031] 40-brake system, 41-brake slide, 42-electric cylinder, 43-controller, 44-mounting seat, 45-elastic member, 46-limit protection wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] It should be noted that the directional words such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of a suspended maglev train in an embodiment of the present application; Figure 2 for Figure 1 The braking schematic diagram of the suspended maglev train is shown.

[0036] The suspended maglev train provided in the embodiment of the present application includes a car body 10 , a suspension system 20 and a running system 30 .

[0037] The suspension system 20 is extended and laid along the length direction of the train line. The suspension system 20 includes a box beam 21 . A suspension rail 22 , a motor secondary part 23 and a first permanent magnet array 24 are arranged inside the box beam 21 .

[0038] The running system 30 includes a suspension frame 31 , which is disposed inside the box beam 21 and connected to the vehicle body 10 . The suspension frame 31 is provided with a suspension electromagnet 32 ​​, a motor primary part 33 and a second permanent magnet array 34 .

[0039] Among them, the suspension electromagnet 32 ​​and the suspension rail 22 are arranged relatively to each other along the first direction. After the suspension electromagnet 32 ​​is energized, it acts with the suspension rail 22 to generate a suspension force to realize the suspension of the vehicle body 10. The primary part 33 of the motor and the secondary part 23 of the motor are arranged relatively to each other along the first direction. After the primary part 33 of the motor is energized, it generates electromagnetic induction with the secondary part 23 of the motor to realize the traction of the vehicle body 10. The second permanent magnet array 34 and the first permanent magnet array 24 are arranged relatively to each other along a second direction perpendicular to the first direction. The second permanent magnet array 34 and the first permanent magnet array 24 repel each other with the same polarity to realize guidance when the vehicle body 10 is running.

[0040] It should be noted that the first direction may be as follows: Figure 1 The Y-axis direction (up and down direction) shown in FIG. 1 , the second direction can be as follows Figure 1 The X-axis direction (left-right direction) is shown.

[0041] In this way, for suspension realization: after the suspension electromagnet 32 ​​is energized, a controllable electromagnetic field is generated, which reacts with the suspension rail 22 (magnetic steel material) on the box beam 21 to generate suspension force, and the electromagnetic force control is achieved by controlling the current, and then a stable and controllable suspension is achieved, and the suspension gap is 8~10mm. For traction realization: the vehicle is equipped with a motor primary part 33, and the box beam 21 is equipped with a motor secondary part 23. The motor primary part 33 is passed with variable frequency electric energy, and electromagnetic induction is generated with the motor secondary part 23 to control the vehicle speed and acceleration, and traction is achieved. For guidance realization: the second permanent magnetic array 34 has the same polarity as the first permanent magnetic array 24, and a certain gap is set between the two. When the vehicle body 10 deviates left and right, the gap between the second permanent magnetic array 34 and the first permanent magnetic array 24 becomes smaller, and the permanent magnetic repulsion is enhanced, which can avoid the vehicle from contacting the box beam 21, and achieve the guidance effect.

[0042] Therefore, the suspended maglev train in the embodiment of the present application adopts electromagnetic suspension, linear motor traction and permanent magnet guidance to achieve completely contactless operation of the vehicle, solving the problems of vibration noise and wear and tear caused by collision and contact between traditional guide wheels, running wheels and tracks, effectively reducing the energy consumption of the system, and has the advantages of low cost, green and high efficiency, small footprint, strong climbing ability, good line adaptability, non-contact and no wear.

[0043] In some embodiments, the suspension frame 31 includes a frame body 311, the axis of the frame body 311 is set along the first direction, the frame body 311 is connected to the vehicle body 10 through the suspension assembly 35, the frame body 311 and the suspension assembly 35 are connected by a pin shaft, the frame body 311 has a first position, a second position and a third position in the direction close to the vehicle body 10, the frame body 311 extends a first arm 312 on both sides of the second direction at the first position, the frame body 311 extends a second arm 313 on both sides of the second direction at the second position, and the frame body 311 extends a third arm 314 on both sides of the second direction at the third position.

[0044] It can be seen that the distance between the first position and the second position is greater than the distance between the second position and the third position. The suspension electromagnet 32 ​​and the motor primary part 33 are installed on the first support arm 312 .

[0045] To facilitate suspension of the vehicle body 10, the box beam 21 includes a top plate 211, and the inner wall of the top plate 211 is provided with two suspension rails 22, which are specifically U-shaped rails. The two suspension rails 22 are spaced apart in the second direction, and the two suspension rails 22 are connected to the inner wall of the top plate 211 by bolts. Correspondingly, the end surfaces of the two first arms 312 away from the vehicle body 10 are both provided with suspension electromagnets 32, and the two suspension electromagnets 32 are spaced apart in the second direction, so that the two suspension electromagnets 32 are respectively arranged opposite to the two suspension rails 22 along the first direction.

[0046] It should be noted that the electromagnetic force is controlled by controlling the current passed into the suspension electromagnet 32, thereby achieving stable and controllable suspension, and the suspension gap is 8-10 mm.

[0047] To facilitate the traction of the vehicle body 10, the box beam 21 includes two side plates 212, and the inner walls of the two side plates 212 are provided with mounting plates 213, which can be welded to the inner walls of the side plates 212. An escape space is provided between the first arm 312 and the second arm 313, and the mounting plate 213 extends to the escape space. A motor secondary part 23 is installed on the mounting plate 213, and the motor secondary part 23 is specifically an aluminum induction plate, which is connected to the mounting plate 213 by bolts or rivets; the end surfaces of the two first arms 312 close to the vehicle body 10 are provided with motor primary parts 33, so that the two motor secondary parts 23 are respectively arranged opposite to the two motor secondary parts 23 along the first direction.

[0048] It can be understood that the primary part 33 of the motor is installed on the vehicle, as the primary part of the linear motor, responsible for generating an alternating magnetic field. The aluminum induction plate is laid on the track of the box beam 21, as the secondary part of the linear motor, and interacts with the primary part of the linear motor. A gap is provided between the primary part 33 of the motor and the aluminum induction plate, so that contactless traction and electric braking can be achieved. Specifically, when the linear motor is powered on, the primary part 33 of the motor generates an alternating magnetic field, and the aluminum induction plate cuts the magnetic flux lines to generate induced electromotive force and eddy currents. According to Lenz's law, the magnetic field generated by the eddy currents interacts with the original magnetic field to generate thrust or braking force. At the same time, by adjusting the voltage, current and frequency of the power supply system, the magnetic field strength and change speed generated by the linear motor can be changed, thereby controlling the speed and acceleration of the vehicle.

[0049] To facilitate guiding the vehicle body 10, the two second arms 313 are each provided with a second permanent magnet array 34 at one end away from the frame body 311, and the inner walls of the two side panels 212 are also provided with a first permanent magnet array 24, so that the two second permanent magnet arrays 34 are respectively arranged opposite to the two first permanent magnet arrays 24 along the second direction.

[0050] Among them, the second permanent magnet array 34 serves as a vehicle-mounted guiding permanent magnet array, and has the same polarity as the first permanent magnet array 24 (also called Halbach permanent magnet array) on the side plate 212 of the box beam 21. A certain gap is set between the two. When the vehicle deviates left or right, the gap between the vehicle-mounted guiding permanent magnet array on one side and the Halbach permanent magnet array on the box beam 21 becomes smaller, and the permanent magnetic repulsion is enhanced, which can avoid contact between the vehicle body 10 and the box beam 21 and achieve a guiding effect.

[0051] In addition, one end of the two first arms 312 away from the frame body 311 and one end of the two third arms 314 away from the frame body 311 are both provided with a stop protection wheel 36 .

[0052] It can be seen that the stop protection wheels 36 at the far ends of the two first arms 312 serve as upper stop protection wheels on the vehicle body 10, and the stop protection wheels 36 at the far ends of the two third arms 314 serve as lower stop protection wheels on the vehicle body 10. The upper stop protection wheels and the lower stop protection wheels together realize the stop protection of the vehicle body 10 along the left and right directions to prevent the vehicle body 10 from excessively deviating or contacting the track during operation, which can also play a certain role in guiding and stabilizing the operation of the vehicle body 10.

[0053] In some embodiments, the upper part of the vehicle body 10 is installed with devices such as a suspension controller, a DCU (abbreviation of Drive Control Unit in English, which means traction control unit in Chinese), an EBCU (electronic brake control unit in rail transit, the full name is Electronic Brake Control Unit, which is mainly used to control the vehicle braking system), an inverter, a high-voltage junction box, a battery or a supercapacitor, an air conditioner, a DC / DC converter, an auxiliary inverter, and the like.

[0054] In some embodiments, in order to achieve power supply, the train uses lithium batteries and flywheel energy storage or supercapacitor hybrid energy storage. Under special instantaneous working conditions, supercapacitors and flywheels are used for high-power electric energy replenishment and output. A fast charging device is installed on the ground, which can quickly charge and replenish electric energy during passengers getting on and off at the station; at the same time, during braking, the kinetic energy of the linear motor can be converted into electrical energy and charged to the energy storage device, realizing energy braking feedback utilization.

[0055] In some embodiments, in order to achieve on-board control, the train adopts an integrated control system with functions such as bus management, equipment status monitoring (including suspension gap), functional logic control and fault diagnosis, supporting digital IO and analog IO control, powerful audio, video and image processing analysis. The air conditioning, doors, lighting, PIS and other systems are controlled and functionally integrated with the on-board diagnostic system to achieve vehicle control.

[0056] In order to facilitate the basic braking of the train, the suspended maglev train further includes a braking system 40, which includes a braking sled 41 and an electric cylinder 42. The braking sled 41 is used to contact and abut against the inner wall of the box beam 21 to achieve friction braking; the electric cylinder 42 is installed on the suspension frame 31, the electric cylinder 42 is connected to the braking sled 41, and the electric cylinder 42 is used to drive the braking sled 41 to move relative to the box beam 21.

[0057] In this way, the electric cylinder 42 pushes the brake slide 41 to contact the box beam 21, thereby achieving friction braking.

[0058] In some embodiments, the number of both the brake skid 41 and the electric cylinder 42 is plural, and the electric cylinder 42 and the brake skid 41 are connected one-to-one; the braking system 40 also includes a controller 43, which is communicated with each electric cylinder 42 to control the movement of a corresponding number of electric cylinders 42 according to the braking force requirements of the target level.

[0059] When mechanical braking is performed, the controller 43 sends a brake application command to the electric cylinder 42, and the electric cylinder 42 pushes the brake slide 41 to contact the track box beam 21 to achieve friction braking. In addition, the controller 43 achieves different levels of braking force by controlling different numbers of electric cylinders 42 and the pressure applied to the box beam 21, thereby achieving precise parking.

[0060] In some embodiments, the number of brake skids 41 and electric cylinders 42 can be set to 6-10 groups. Taking 7 groups as an example, 1-7 levels of braking force can be achieved by controlling different numbers of electric cylinders 42 and the pressure applied to the box beam 21, wherein the level of braking force corresponds to the number of groups of controlled brake skids 41.

[0061] In this way, basic braking is achieved: common electric braking can be achieved through a linear motor, and mechanical braking is achieved through a brake skid 41 installed on the running system 30. Multiple brake skid 41 points are set on each vehicle, and the number of contacts between the brake skid 41 and the bottom of the box beam 21 can be controlled by the electric cylinder 42 and the control unit to achieve different levels of braking force. The more contacts, the greater the braking force.

[0062] To facilitate installation of the electric cylinder 42 , the brake system 40 further includes a mounting seat 44 , and each electric cylinder 42 is installed at intervals on the mounting seat 44 . The mounting seat 44 is installed on the suspension frame 31 through an elastic member 45 (which may be a rubber pile).

[0063] In addition, both ends of the mounting seat 44 along the length direction of the train line are provided with limiting protection wheels 46 , and the limiting protection wheels 46 and the brake skid 41 are used to jointly support the vehicle body 10 to park after the vehicle body 10 falls.

[0064] When the vehicle stops steadily, the suspension electromagnet 32 ​​is powered off and no longer generates suction with the suspension rail 22, the vehicle body 10 falls, and the limit protection wheel 46 and the brake slide 41 jointly support the vehicle body 10 to park on the track; the controller 43 sends a brake release command, the electric cylinder 42 drives the brake slide 41 to retract, the brake is released, and the vehicle can be suspended and run.

[0065] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0066] The above is a detailed introduction to the suspended maglev train provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A suspended maglev train, characterized in that: include: Vehicle body; A suspension system extending along the length direction of the train line, comprising a box beam, wherein a suspension rail, a motor secondary part and a first permanent magnet array are arranged inside the box beam; A running system, comprising a suspension frame, the suspension frame is arranged inside the box beam and connected to the vehicle body, and the suspension frame is provided with a suspension electromagnet, a primary part of a motor and a second permanent magnet array; Among them, the suspension electromagnet and the suspension rail are arranged relatively to each other along a first direction, and the suspension electromagnet acts with the suspension rail to generate a suspension force after being energized, so as to realize the suspension of the vehicle body, the primary part of the motor and the secondary part of the motor are arranged relatively to each other along the first direction, and the primary part of the motor generates electromagnetic induction with the secondary part of the motor after being energized, so as to realize the traction of the vehicle body, and the second permanent magnet array and the first permanent magnet array are arranged relatively to each other along a second direction perpendicular to the first direction, and the second permanent magnet array and the first permanent magnet array repel each other with the same polarity, so as to realize guidance when the vehicle body is running.

2. The suspended maglev train according to claim 1, characterized in that: The suspended maglev train also includes a braking system, which includes: A brake skid, used for contacting and abutting against the inner wall of the box beam to achieve friction braking; The electric cylinder is installed on the suspension frame and connected to the brake slide, and is used to drive the brake slide to move relative to the box beam.

3. The suspended maglev train according to claim 2, characterized in that: The number of the brake slides and the number of the electric cylinders are both several, and the electric cylinders and the brake slides are connected one by one; The braking system further includes a controller, which is in communication with each of the electric cylinders to control the actions of a corresponding number of the electric cylinders according to the braking force requirements of the target level.

4. The suspended maglev train according to claim 3, characterized in that: The brake system further comprises a mounting seat, on which each of the electric cylinders is mounted at intervals, and the mounting seat is mounted on the suspension frame via an elastic member.

5. The suspended maglev train according to claim 4, characterized in that: The mounting seat is provided with limiting protection wheels at both ends along the length direction of the train line, and the limiting protection wheels and the braking skid are used to jointly support the vehicle body to park after the vehicle body falls.

6. The suspended maglev train according to any one of claims 1 to 5, characterized in that: The suspended frame includes a frame body, the axis of the frame body is arranged along the first direction, the frame body is connected to the vehicle body through a suspension component, the frame body has a first position, a second position and a third position in sequence along the direction close to the vehicle body, the frame body extends a first arm on both sides of the second direction at the first position, extends a second arm on both sides of the second direction at the second position, and extends a third arm on both sides of the second direction at the third position.

7. The suspended maglev train according to claim 6, characterized in that: The box beam comprises a top plate, the inner wall of which is provided with two suspension rails, and the end surfaces of the two first arms away from the vehicle body are provided with suspension electromagnets, so that the two suspension electromagnets are respectively arranged opposite to the two suspension rails along the first direction.

8. The suspended maglev train according to claim 6, characterized in that: The box beam includes two side plates, and the inner walls of the two side plates are provided with mounting plates. An avoidance space is provided between the first support arm and the second support arm, and the mounting plate extends to the avoidance space. The motor secondary part is installed on the mounting plate, and the end surfaces of the two first support arms close to the vehicle body are provided with the motor primary part, so that the two motor secondary parts are respectively arranged opposite to the two motor secondary parts along the first direction.

9. The suspended maglev train according to claim 8, characterized in that: The second permanent magnet array is disposed at one end of the two second arms away from the frame body, and the first permanent magnet array is disposed on the inner walls of the two side plates, so that the two second permanent magnet arrays are respectively arranged opposite to the two first permanent magnet arrays along the second direction.

10. The suspended maglev train according to claim 6, characterized in that: One end of the two first arms away from the frame body and one end of the two third arms away from the frame body are both provided with stop protection wheels.

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