Modularized walking mechanism device of normal-conducting high-speed maglev train

Abstract

The invention provides a modular walking mechanism device of a normal-conducting high-speed maglev train, which belongs to the field of magnetic suspension guiding systems and comprises a plurality of walking mechanisms and a plurality of traction devices, and the traction devices are arranged between the front and back adjacent walking mechanisms. The walking mechanism comprises two suspension guide modules, a framework module, two secondary suspension devices and two skid devices, the two suspension guide modules are arranged at the left end and the right end of the walking mechanism respectively, each suspension guide module comprises two supporting arms, a suspension magnet and a guide magnet, the framework module comprises two cross beams and two longitudinal beams, and the two cross beams and the two longitudinal beams are arranged on the framework module. The two cross beams are arranged at the two ends of the top of the longitudinal beam respectively, the ends of the two cross beams are connected with the upper portions of the two supporting arms of the two suspension guide modules respectively, the two secondary suspension devices are arranged in the middle of the top of the longitudinal beam respectively, and the multiple walking mechanisms are connected with the vehicle body through the tops of the secondary suspension devices. And the two skid devices are respectively connected with the middle of the bottom of the longitudinal beam. The device is simple and reliable in structure and is matched with an existing rail.

Description

Technical Field

[0001] This invention relates to the field of magnetic levitation guidance systems, and more particularly to a modular running mechanism device for a conventional high-speed maglev train. Background Technology

[0002] High-speed maglev transportation boasts advantages such as strong climbing ability and being affected only by air resistance during operation, making it the most promising rail transit system for achieving ultra-high-speed ground operation. The running gear, a crucial component of high-speed maglev trains, bears and transmits vertical, lateral, and longitudinal forces between the train and the track, and reduces vibrations from the track through suspension devices, ensuring a smooth and comfortable ride.

[0003] However, because the original conventional high-speed maglev train running mechanism uses moving parts such as bolsters and swing arms to bear the vertical and lateral forces of the secondary suspension, there are many moving parts and the structure is complex. In actual operation, adverse phenomena such as longitudinal beam cracks, bolster wear, and swing arm breakage have also occurred, which has increased the safety risks and maintenance tasks of high-speed maglev train operation and reduced transportation safety, economy and comfort. Summary of the Invention

[0004] The purpose of this invention is to provide a modular running gear device for conventional high-speed maglev trains. It eliminates moving parts such as bolsters and swing arms in the original vehicle running gear, significantly reducing the number of components constituting the running gear device. It realizes a new type of secondary suspension structure with "no bolster, no swing arm, and no rocking platform". The structure is simple and reliable, compatible with existing track structures, and the number of running gears can be flexibly configured according to the train requirements, which is conducive to mass production and ensures the safety and stability of the running gear during operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A modular running gear device for a conventional high-speed maglev train includes multiple running gears and multiple traction devices. The number of running gears and traction devices is set according to the train requirements. Multiple running gears are evenly installed at the bottom of the car body, and traction devices are arranged between adjacent running gears. Each running gear includes two suspension guide modules, a frame module, two secondary suspension devices, and two skid devices. The two suspension guide modules are respectively located at the left and right ends of the running gear. Each suspension guide module includes two support arms, a suspension magnet, and a guide magnet. The lower part of the two support arms is connected to the suspension magnet, and the middle part of the two support arms is connected to the guide magnet. Next, the frame module is used to transmit the vertical and lateral forces from the suspension guide module. The frame module includes two crossbeams and a longitudinal beam. The two crossbeams are respectively set at the top ends of the longitudinal beam. The ends of the two crossbeams are respectively connected to the upper parts of the two support arms of the two suspension guide modules. Two secondary suspension devices are respectively set at the middle position of the top of the longitudinal beam. Multiple traveling mechanisms are connected to the car body through the top of the secondary suspension devices. Two skid devices are respectively connected to the middle of the bottom of the longitudinal beam. The traveling mechanism is used to bear and transmit the vertical, lateral and longitudinal forces between the car body and the track, and reduce the vibration from the track through the secondary suspension devices.

[0006] The secondary suspension device includes an air spring. The lower part of the air spring is connected to the top of the longitudinal beam, and the top surface of the air spring is connected to the vehicle body. After being inflated, the air spring has a certain vertical and lateral stiffness and is used to transmit the vertical and lateral forces of the frame module.

[0007] Furthermore, the traction device has a "Z" shaped structure. The traction device includes a lever seat, a first pull rod, and a second pull rod. One end of the first pull rod is connected to the middle of the crossbeam of the front traveling mechanism, and the other end of the first pull rod is connected to one end of the lever seat. The other end of the lever seat is connected to one end of the second pull rod, and the other end of the second pull rod is connected to the middle of the crossbeam of the rear traveling mechanism. The lever seat is connected to the vehicle body.

[0008] Furthermore, when the train is parked, the weight of the car body is transmitted to the longitudinal beams via air springs, and then the vertical force is transmitted to the track via a skid device connected to the longitudinal beams.

[0009] Furthermore, when the train is levitated, the weight of the car body is transmitted to the longitudinal beams via air springs, and then the vertical force is transmitted to the levitation magnets via the support arms connected to the ends of the crossbeams, thus transferring the weight of the car body to the track.

[0010] Furthermore, when the train is suspended and passes through a curve on the track, the lateral force of the car body is transmitted to the longitudinal beam through the air spring, and then to the guide magnet through the bracket connected to the end of the crossbeam, and finally to the track.

[0011] Furthermore, when the train is suspended and traction or braking, the longitudinal force is first transmitted to the crossbeam through the support arm, and then transmitted to the lever seat through the first and second tie rods connected to the crossbeam. The longitudinal force is then transmitted to the car body through the lever seat.

[0012] Advantages of this invention: 1. Rapid implementation: The modular running mechanism of the present invention can adopt the existing suspension guide module, which is compatible with the existing track structure and can be quickly deployed on conventional high-speed maglev vehicles.

[0013] 2. Simple and reliable structure: The modular running mechanism device adopted in this invention has a simple structure, fewer moving parts, and reduces the dynamic degrees of freedom of the whole vehicle system by nearly 1 / 5, thus making it more reliable.

[0014] 3. Lower cost: The modular traveling mechanism of the present invention has a simpler and more reliable structure, a shorter manufacturing cycle, and lower development costs compared to the original traveling mechanism.

[0015] 4. Enhanced safety: The modular running gear of this invention can more evenly transmit forces in all directions to the vehicle body structure, effectively avoiding the problem of excessive local stress caused by concentrated forces, thus improving the safety of the running gear and the durability of the vehicle structure.

[0016] 5. Flexible train configuration: The modular running gear device of the present invention can flexibly configure the number of running gears according to the needs of the train, which is highly adaptable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the side structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the forward structure of the present invention.

[0019] Figure 3 This is a schematic diagram showing the connection between the traveling mechanism and the traction device in this invention.

[0020] Figure 4 This is a schematic diagram of a single traveling mechanism in this invention.

[0021] Figure 5 This is a frontal schematic diagram of a single traveling mechanism in this invention.

[0022] Figure 6 This is a schematic diagram of the suspension guide module in this invention.

[0023] Figure 7 This is a schematic diagram of the architecture module in this invention.

[0024] Figure 8 This is a schematic diagram of the two-stage suspension device in this invention.

[0025] Figure 9 This is a schematic diagram of the traction device in this invention.

[0026] In the diagram: 1. Track; 2. Car body; 3. Running mechanism; 3.1. Suspension guide module; 3.1.1. Support arm; 3.1.2. Suspension magnet; 3.1.3. Guide magnet; 3.2. Frame module; 3.2.1. Crossbeam; 3.2.2. Longitudinal beam; 3.3. Secondary suspension device; 3.3.1. Air spring; 3.4. Skid device; 4. Traction device; 4.1. Lever seat; 4.2. First tie rod; 4.3. Second tie rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] like Figures 1-3 As shown, a modular running gear device for a conventional high-speed maglev train includes multiple running gears 3 and multiple traction devices 4. The number of running gears 3 and traction devices 4 is set according to the train requirements. The multiple running gears 3 are evenly installed at the bottom of the car body 2, and traction devices 4 are arranged between adjacent running gears 3. Figures 4-5 As shown, the traveling mechanism 3 includes two suspension guide modules 3.1, a frame module 3.2, two secondary suspension devices 3.3, and two skid devices 3.4. The two suspension guide modules 3.1 are respectively located at the left and right ends of the traveling mechanism 3, as shown. Figure 6 As shown, the suspension guide module 3.1 includes two support arms 3.1.1, a suspension magnet 3.1.2, and a guide magnet 3.1.3. The lower parts of the two support arms 3.1.1 are connected to the suspension magnet 3.1.2, and the middle parts of the two support arms 3.1.1 are connected to the guide magnet 3.1.3. The frame module 3.2 is used to transmit the vertical and lateral forces from the suspension guide module 3.1, such as... Figure 7As shown, the frame module 3.2 includes two crossbeams 3.2.1 and a longitudinal beam 3.2.2. The two crossbeams 3.2.1 are respectively located at the top ends of the longitudinal beam 3.2.2. The ends of the two crossbeams 3.2.1 are respectively connected to the upper parts of the two support arms 3.1.1 of the two suspension guide modules 3.1. Two secondary suspension devices 3.3 are respectively located at the middle position of the top of the longitudinal beam 3.2.2. Multiple running mechanisms 3 are connected to the car body 2 through the top of the secondary suspension devices 3.3. Two skid devices 3.4 are respectively connected to the middle of the bottom of the longitudinal beam 3.2.2. The running mechanisms 3 are used to bear and transmit the vertical force, lateral force and longitudinal force between the car body 2 and the track 1, and reduce the vibration from the track 1 through the secondary suspension devices 3.3 to ensure the stability and comfort of the train ride. The skid device 3.4 is used to support stationary vehicles, to provide mechanical support for the running mechanism 3 when the levitation function or the long stator coil fails, and to assist in braking the falling train when the eddy current brake vehicle falls at a low speed under controlled conditions.

[0029] The suspension guide module 3.1 is used to bear the suspension force and guiding force (or braking force) between itself and the track 1, and to reduce the vibration from the track 1. Its interface with the track 1 and other running mechanism components remains unchanged to ensure its interchangeability.

[0030] When the levitation magnet 3.1.2 is energized, it generates an electromagnetic levitation force vertically between itself and the track 1. When the guide magnet 3.1.3 is energized, it generates an electromagnetic guiding force horizontally between itself and the track 1. The levitation and guiding gap between the vehicle body 2 and the track 1 is adjusted in real time through the vehicle-mounted levitation and guiding control system to ensure that the vehicle body 2 operates without contact.

[0031] The frame module 3.2 is used to transmit the vertical, lateral and longitudinal forces generated by the suspension guide module 3.1, and to connect the suspension guide modules 3.1 at the left and right ends into a whole load-bearing structure with good rigidity.

[0032] like Figure 8 As shown, the secondary suspension device 3.3 includes an air spring 3.3.1. The lower part of the air spring 3.3.1 is connected to the top of the longitudinal beam 3.2.2, and the top surface of the air spring 3.3.1 is connected to the vehicle body 2. The weight of the vehicle body 2 is transferred through the air spring 3.3.1. After inflation, the air spring 3.3.1 has a certain vertical and lateral stiffness, used to transmit the vertical and lateral forces of the frame module 3.2. The air spring 3.3.1 can reduce the vibration from the frame module 3.2, keeping the vibration and comfort of the vehicle body 2 in line with requirements. Compared with the secondary suspension structure in the prior art, the present invention uses the air spring 3.3.1 to bear the vertical and lateral forces, eliminating the need for a bolster, swing arm, and rocker platform, significantly reducing the number of parts in the existing secondary suspension structure and simplifying the structural configuration.

[0033] As a preferred embodiment of the present invention, such as Figure 9 As shown, the traction device 4 has a "Z"-shaped structure and is used to transmit longitudinal forces (including traction and braking forces) between the traveling mechanism 3 and the vehicle body 2. The traction device 4 includes a lever seat 4.1, a first pull rod 4.2, and a second pull rod 4.3. One end of the first pull rod 4.2 is connected to the middle of the crossbeam 3.2.1 of the front traveling mechanism 3, and the other end of the first pull rod 4.2 is connected to one end of the lever seat 4.1. The other end of the lever seat 4.1 is connected to one end of the second pull rod 4.3, and the other end of the second pull rod 4.3 is connected to the middle of the crossbeam 3.2.1 of the rear traveling mechanism 3. The lever seat 4.1 is connected to the vehicle body 2 and can transmit longitudinal forces (traction and braking forces).

[0034] The connection interface between the frame module 3.2 and the suspension guide module 3.1 remains unchanged, and it can be adapted to existing suspension guide modules. The connection interface between the frame module 3.2 and the skid device 3.4 remains unchanged, and it can be adapted to existing skid devices.

[0035] In a preferred embodiment of the present invention, when the train is parked, the weight of the car body 2 is transmitted to the longitudinal beam 3.2.2 through the air spring 3.3.1, and then the vertical force is transmitted to the track 1 through the skid device 3.4 connected to the longitudinal beam 3.2.2.

[0036] In a preferred embodiment of the present invention, when the train is levitated, the weight of the car body 2 is transmitted to the longitudinal beam 3.2.2 through the air spring 3.3.1, and then the vertical force is transmitted to the levitation magnet 3.1.2 through the support arm 3.1.1 connected to the end of the cross beam 3.2.1, thus transmitting the weight of the car body 2 to the track 1.

[0037] In a preferred embodiment of the present invention, when the train is suspended and passes through a curve of the track, the lateral force of the car body 2 is transmitted to the longitudinal beam 3.2.2 through the air spring 3.3.1, and then to the guide magnet 3.1.3 through the bracket 3.1.1 connected to the end of the crossbeam 3.2.1, and finally to the track 1.

[0038] In a preferred embodiment of the present invention, when the train is suspended and traction or braking, the longitudinal force is first transmitted to the crossbeam 3.2.1 through the support arm 3.1.1, and then transmitted to the lever seat 4.1 through the first tie rod 4.2 and the second tie rod 4.3 connected to the crossbeam 3.2.1. The longitudinal force is then transmitted to the car body 2 through the lever seat 4.1.

[0039] As a preferred embodiment of the present invention, the number of traveling mechanisms 3 can be set to 2-8 according to the train requirements to meet the actual needs of different projects.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can still adjust the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A modular running mechanism device for a conventional high-speed maglev train, characterized in that: The system includes multiple running gears (3) and multiple traction devices (4). The number of running gears (3) and traction devices (4) is set according to the train requirements. Multiple running gears (3) are evenly installed at the bottom of the car body (2). Traction devices (4) are set between adjacent running gears (3). The running gear (3) includes two suspension guide modules (3.1), a frame module (3.2), two secondary suspension devices (3.3), and two skid devices (3.4). The two suspension guide modules (3.1) are respectively set at the left and right ends of the running gear (3). The suspension guide module (3.1) includes two support arms (3.1.1), a suspension magnet (3.1.2), and a guide magnet (3.1.3). The lower part of the two support arms (3.1.1) is connected to the suspension magnet (3.1.2), and the middle part of the two support arms (3.1.1) is connected to the guide magnet (3.1.3). The frame module (3.2) The frame module (3.2) is used to transmit vertical and lateral forces from the suspension guide module (3.1). The frame module (3.2) includes two crossbeams (3.2.1) and a longitudinal beam (3.2.2). The two crossbeams (3.2.1) are respectively set at the top two ends of the longitudinal beam (3.2.2). The ends of the two crossbeams (3.2.1) are respectively connected to the upper part of the two support arms (3.1.1) of the two suspension guide modules (3.1). Two secondary suspension devices (3.3) are respectively set at the middle position of the top of the longitudinal beam (3.2.2). Multiple traveling mechanisms (3) are connected to the vehicle body (2) through the top of the secondary suspension devices (3.3). Two skid devices (3.4) are respectively connected to the middle of the bottom of the longitudinal beam (3.2.2). The traveling mechanism (3) is used to bear and transmit the vertical, lateral and longitudinal forces between the vehicle body (2) and the track (1) and reduce the vibration from the track (1) through the secondary suspension devices (3.3). The secondary suspension device (3.3) includes an air spring (3.3.1), the lower part of which is connected to the top of the longitudinal beam (3.2.2), and the top surface of which is connected to the vehicle body (2). After being inflated, the air spring (3.3.1) has a certain vertical and lateral stiffness and is used to transmit the vertical and lateral forces of the frame module (3.2).

2. The modular running mechanism device for a conventional high-speed maglev train according to claim 1, characterized in that: The traction device (4) has a "Z" shaped structure. The traction device (4) includes a lever seat (4.1), a first pull rod (4.2), and a second pull rod (4.3). One end of the first pull rod (4.2) is connected to the middle of the crossbeam (3.2.1) of the front traveling mechanism (3). The other end of the first pull rod (4.2) is connected to one end of the lever seat (4.1). The other end of the lever seat (4.1) is connected to one end of the second pull rod (4.3). The other end of the second pull rod (4.3) is connected to the middle of the crossbeam (3.2.1) of the rear traveling mechanism (3). The lever seat (4.1) is connected to the vehicle body (2).

3. The modular running mechanism device for a conventional high-speed maglev train according to claim 2, characterized in that: When the train is parked, the weight of the car body (2) is transmitted to the longitudinal beam (3.2.2) through the air spring (3.3.1), and then the vertical force is transmitted to the track (1) through the skid device (3.4) connected to the longitudinal beam (3.2.2).

4. The modular running mechanism device for a conventional high-speed maglev train according to claim 3, characterized in that: When the train is levitated, the weight of the car body (2) is transmitted to the longitudinal beam (3.2.2) through the air spring (3.3.1), and then the vertical force is transmitted to the levitation magnet (3.1.2) through the support arm (3.1.1) connected to the end of the cross beam (3.2.1), thus transmitting the weight of the car body (2) to the track (1).

5. A modular running mechanism device for a conventional high-speed maglev train according to claim 4, characterized in that: When the train is suspended and passes through the curve of the track, the lateral force of the car body (2) is transmitted to the longitudinal beam (3.2.2) through the air spring (3.3.1), and then to the guide magnet (3.1.3) through the bracket (3.1.1) connected to the end of the cross beam (3.2.1), and then to the track (1).

6. A modular running mechanism device for a conventional high-speed maglev train according to claim 5, characterized in that: When the train is suspended and traction or braking, the longitudinal force is first transmitted to the crossbeam (3.2.1) through the support arm (3.1.1), and then transmitted to the lever seat (4.1) through the first tie rod (4.2) and the second tie rod (4.3) connected to the crossbeam (3.2.1). The longitudinal force is then transmitted to the car body (2) through the lever seat (4.1).

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