A suspended maglev transportation system

Abstract

The application discloses a suspension type maglev transportation system, which comprises a track system, a suspension system, a traction system and a vehicle body. Compared with the prior art, the suspension type maglev transportation system is optimized in structure, so that the suspension electromagnet and the linear asynchronous motor are simultaneously located below the track beam. On the one hand, the suspension gap and the motor gap change in the same law, so that the suspension gap and the motor gap can be effectively reduced, and the suspension energy consumption and the traction energy consumption can be effectively reduced. On the other hand, the normal force of the linear asynchronous motor and the suspension force are in the same direction relative to the track, so that the suspension energy consumption can be effectively reduced. In addition, the problem of ice and snow accumulation in the motor gap in rainy and snowy weather is avoided. The suspension type maglev transportation system has the advantages of high suspension efficiency, low suspension energy consumption, high traction efficiency, low traction energy consumption and no influence of extreme weather.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of maglev transportation, in particular to a suspended maglev transportation system. BACKGROUND

[0002] Currently, the maglev transportation systems operated in the world are straddle type, and the suspension frame is the core component of the maglev train, which has the functions of suspension, guidance, traction and braking. When the maglev train runs, the electromagnetic force generated by the electromagnet installed on the suspension frame below the track suspends the vehicle on the track. The longitudinal force generated by the linear motor installed on the suspension frame above the track pulls the vehicle forward. The sum of the suspension gap between the electromagnet and the track and the motor gap between the track and the linear motor is a certain value. The smaller the suspension gap and the larger the motor gap, the smaller the suspension gap, the smaller the suspension current, and the smaller the heat generated by the electromagnet. However, the larger the motor gap, the lower the motor efficiency, and the more the motor power is wasted, which is obviously not conducive to improving the efficiency of the entire system. The normal force of the linear asynchronous motor relative to the track is opposite to the suspension force of the suspension electromagnet relative to the track. In order to overcome the normal force of the motor, the suspension force needs to be increased, which reduces the suspension efficiency. In addition, the existing linear motor is installed on both sides of the suspension frame, and due to the limitation of the structure size, the motor is short and small, which further reduces the motor power. Thirdly, the linear motor is above the track, which is easy to cause electrical performance failure in snowy weather. Therefore, it is urgent to develop a new structure that allows the suspension gap and the motor gap to vary in direct proportion, and the motor length uses the full length of the suspension frame as much as possible to improve the design power, reduce the cost, improve the system efficiency, reduce the environmental impact, and improve the system reliability, which is a problem to be solved by those skilled in the art. SUMMARY

[0003] The present application discloses a suspended maglev transportation system, which comprises a track system, a suspension system, a traction system and a vehicle body. The track system comprises T-shaped columns, track beams, track mounting plates and π-shaped tracks. The T-shaped columns are installed on the ground, the track beams are arranged below the two sides of the T-shaped columns, the track mounting plates are installed below the track beams, and the π-shaped tracks are installed below the two sides of the track mounting plates. The suspension system comprises a suspension controller, suspension electromagnets, a suspension gap sensor and a suspension frame. The suspension electromagnets are installed on both sides of the suspension frame and are arranged opposite to the π-shaped tracks. The suspension controller is connected with the suspension electromagnets. The traction system comprises a traction inverter and a linear asynchronous motor. The rotor of the linear asynchronous motor is fixed below the middle part of the track mounting plate, and the stator of the linear asynchronous motor is fixed above the middle part of the suspension frame and opposite to the rotor of the linear asynchronous motor. The vehicle body is suspended below the track beams by the suspension frame.

[0004] As a further improvement, the rotor of the linear asynchronous motor is installed on the same plane below the track mounting plate parallel to the π-shaped track.

[0005] As a further improvement, the linear asynchronous motor stator and the levitation electromagnet are installed on the same plane above the levitation frame, opposite the linear asynchronous motor mover and the π-shaped track.

[0006] As a further improvement, the suspension type maglev transportation system further comprises an electric support system, the electric support system comprising an electric motor, a motor controller and an electric support wheel. The motor controller is connected to the electric motor, and the electric motor is connected to the electric support wheel. The electric support wheel is fixed to the upper portion of the levitation frame and located above the track mounting plate.

[0007] As a further improvement, a spring suspension system and a damper are provided between the levitation frame and the vehicle body, and the vehicle body is suspended below the levitation frame through the spring suspension system and the damper.

[0008] As a further improvement, when the suspension type maglev transportation system is used for cargo transportation, the spring suspension system can adopt a steel spring system.

[0009] As a further improvement, when the suspension type maglev transportation system is used for passenger transportation, the spring suspension system can adopt an air spring system.

[0010] As a further improvement, the suspension type maglev transportation system further comprises a brake provided between the levitation frame and the track, and the brake is connected to the motor control system.

[0011] The suspension type maglev transportation system provided by the present application has the advantages of high suspension efficiency, low suspension energy consumption, high traction efficiency, low traction energy consumption, and being unaffected by extreme weather, compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0012] The present application is further described with reference to the accompanying drawings, but the examples in the drawings do not constitute any limitation on the present application. Other drawings can be obtained by those of ordinary skill in the art without creative labor, based on the following drawings.

[0013] Figure 1 is a schematic view of the cross-sectional structure of the suspension type maglev transportation system.

[0014] Figure 2 is Figure 1 partial enlarged view.

[0015] Figure 3 is a longitudinal view of a single-suspension-levitation-vehicle container vehicle of a suspended magnetic levitation transportation system.

[0016] Figure 4 is a longitudinal view of a double-suspension-levitation-vehicle container vehicle of a suspended magnetic levitation transportation system.

[0017] Figure 5 is a schematic view of a double-vehicle-coupled passenger vehicle of a suspended magnetic levitation transportation system.

[0018] Figure 6 is an isometric view of a single-suspension-levitation-vehicle container vehicle of a suspended magnetic levitation transportation system.

[0019] wherein: 1 is a stand column, 2 is a track beam, 3 is a suspension levitation frame, 4 is an elastic suspension system, 5 is a damper, 6 is a vehicle body, 7 is a track mounting plate, 8 is a base plate, 9 is an induction plate, 10 is a stator, 11 is a π-shaped track, 12 is a suspension gap sensor, 13 is a suspension electromagnet, and 14 is a support wheel. DETAILED DESCRIPTION

[0020] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments, and it should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] As Figures 1 to 6 shown, the suspended magnetic levitation transportation system provided by the embodiment of the present application comprises a track system, a suspension system, a traction system and a vehicle body (6), wherein the track system comprises a stand column (1), a track beam (2), a track mounting plate (7) and a π-shaped track (11), the suspension system comprises a suspension controller, a suspension electromagnet (13), a suspension gap sensor (12) and a suspension levitation frame (3), the traction system comprises a traction inverter and a linear asynchronous motor, a base plate (8) and an induction plate (9) of a rotor of the linear asynchronous motor are fixed below the middle part of the track mounting plate, a stator (10) of the linear asynchronous motor is fixed above the middle part of the suspension levitation frame (3) and opposite to the induction plate (9) of the rotor of the linear asynchronous motor; the vehicle body is suspended below the track beam through the suspension levitation frame (3), as shown, the vehicle body (6) is connected with the suspension levitation frame (3) through an elastic suspension system (4) and a damper (5), Figure 2 as shown, the vehicle body (6) is connected with the suspension levitation frame (3) through an elastic suspension system (4) and a damper (5), Figure 2 The embodiment is used for cargo transportation and adopts a steel spring elastic suspension system, and an air spring elastic suspension system can be used for passenger transportation.

[0022] As Figure 3As shown in the single-suspension-frame container vehicle embodiment of the suspension type maglev transportation system of the present application, two sets of steel spring elastic suspension systems (4) and two sets of dampers (5) are used between the suspension frame (3) and the vehicle body (6).

[0023] As shown in the single-suspension-frame container vehicle embodiment of the suspension type maglev transportation system of the present application, two sets of steel spring elastic suspension systems (4) and two sets of dampers (5) are used between the suspension frame (3) and the vehicle body (6). Figure 4

[0024] Compared with the prior art, the present application has the following advantages:

[0025] 1) Through structural optimization, the suspension electromagnet (13) and the stator (10) of the linear asynchronous motor are located below the track beam, realizing the same variation of the suspension gap and the motor gap, effectively reducing the suspension gap and the motor gap, and effectively reducing the suspension energy consumption and the traction energy consumption;

[0026] 2) Through structural optimization, the suspension electromagnet (13) and the stator (10) of the linear asynchronous motor are located below the track beam, realizing the same variation of the suspension gap and the motor gap, effectively reducing the suspension gap and the motor gap, and effectively reducing the suspension energy consumption and the traction energy consumption;

[0027] 3) Through structural improvement, the substrate (8) and the induction plate (9) of the linear asynchronous motor are located below the track beam, avoiding the problem of ice and snow accumulation in the motor gap in rainy and snowy weather;

[0028] 4) Through the above improvements, the suspension type maglev transportation system provided by the present application has the advantages of high suspension efficiency, low suspension energy consumption, high traction efficiency, low traction energy consumption, no influence of extreme weather, and strong emergency rescue ability.

[0029] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, it should not be understood as limiting the scope of protection of the present application.

[0030] In summary, although the above preferred embodiments are listed, it should be noted that although various changes and modifications can be made by those skilled in the art, unless such changes and modifications deviate from the scope of the present application, they should be included in the protection scope of the present application.​

Claims

1. A suspended maglev transportation system comprising a track system, a levitation system, a traction system and a vehicle body (6), characterized in that, The track system comprises a column (1), track beams (2) symmetrically arranged on both sides of the column (1), a track mounting plate (7), and a π-shaped track (11); the suspension system comprises a suspension controller, a suspension bracket (3) semi-encircling the track beam, a suspension gap sensor (12), and a suspension electromagnet (13) installed on both sides of the suspension bracket (3) and arranged opposite to the π-shaped track (11); the suspension controller is connected with the suspension gap sensor (12) and the suspension electromagnet (13); the suspension gap sensor (12) is installed on the suspension electromagnet (13); the traction system comprises a traction control system and a linear asynchronous motor arranged below the track beam (2); the mover of the linear asynchronous motor is fixed in the middle of the two π-shaped tracks (11) below the track beam (2); the mover of the linear asynchronous motor comprises a base plate (8) and an induction plate (9) installed below the base plate (8); the stator (10) of the linear asynchronous motor is installed above the middle of the suspension bracket (3) and opposite to the induction plate (9); the mover of the linear asynchronous motor, which comprises the base plate (8) and the induction plate (9) installed below the base plate (8), is installed in the middle of the two π-shaped tracks (11) through a bolted joint and is laid along the whole length in the forward direction; the stator (10) of the linear asynchronous motor is fixed above the middle of the suspension bracket (3) and opposite to the mover; the mover of the linear asynchronous motor and the π-shaped track (11) are installed on the same plane below the track mounting plate (7); the stator (10) of the linear asynchronous motor and the suspension electromagnet (13) are installed on the same plane above the suspension bracket (3) and opposite to the mover and the π-shaped track (11); the suspension electromagnet (13) and the stator (10) of the linear asynchronous motor are located below the track beam, so that the normal force of the linear asynchronous motor and the suspension force are in the same direction relative to the track; the vehicle body (6) is suspended below the track system through the suspension bracket (3); the system further comprises an electric support system, which comprises a motor, a motor controller, and a support wheel (14); the motor controller is connected with the motor; the motor is connected with the support wheel (14); the support wheel (14) is fixed to the upper part of the suspension bracket (3) and located above the track mounting plate (7); the system further comprises an elastic suspension system (4) and a damper (5); the vehicle body (6) is connected with the suspension bracket (3) through the elastic suspension system (4) and the damper (5).

2. The suspended maglev transportation system of claim 1, wherein, The track beam (2) of the track system is spliced from profiled steel; the track mounting plate (7) is connected with the track beam (2) through a bolted joint; and the π-shaped track (11) is connected with the track mounting plate (7) through a bolted joint.

3. The suspended maglev transit system of claim 1, wherein, The suspension bracket (3) of the suspension system semi-encircles below the track beam (2).

4. The elastic suspension system (4) of the suspension-type magnetic levitation transportation system according to claim 1 adopts a steel spring or an air spring.

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