Auxiliary guide and rapid frog passing structure of suspension type permanent magnet electromagnetic hybrid vehicle

Abstract

The application provides a hanging type permanent magnet electromagnetic hybrid suspended vehicle auxiliary guiding and rapid turnout passing structure, which comprises a magnetic levitation vehicle, a main track structure, an auxiliary track structure and an auxiliary guiding structure. The application lays a rail below the magnetic levitation vehicle and sets a wheel corresponding to the rail on the magnetic levitation vehicle. When the magnetic levitation vehicle in suspension driving tilts or transversely displaces too much and exceeds the guiding and adjusting capacity of the suspension electromagnet and the suspension track, the wheel rim contacts the corresponding rail to form a limiting and auxiliary guiding structure, thereby preventing the tilting or transverse displacement of the magnetic levitation vehicle from further increasing, so that the magnetic levitation vehicle can continue to maintain a stable suspension driving state. The cooperation of the wheel and the rail is also beneficial to improving the turnout response speed of the magnetic levitation vehicle, providing the possibility of rapid turnout passing of the magnetic levitation vehicle, and enabling the magnetic levitation vehicle to continue to move on the rail by relying on the wheel support when the magnetic levitation vehicle suspends, thereby improving the fault response capacity of the system.

Description

Technical Field

[0001] This invention relates to the field of magnetic levitation rail vehicle technology, and more specifically, to a suspended permanent magnet electromagnetic hybrid levitation vehicle auxiliary guidance and rapid turnout crossing structure. Background Technology

[0002] The content in this section only provides background information related to this invention and may not constitute prior art.

[0003] As an emerging mode of transportation, suspended maglev transport systems still face technical bottlenecks in practical applications, such as poor directional stability.

[0004] Specifically, current suspended maglev vehicles in suspended maglev transport systems mainly adopt the passive guidance method of traditional medium- and low-speed maglev vehicles, which uses the attractive force generated by the interaction between levitation electromagnets and the suspension rail to guide and correct the vehicle's course. However, suspended maglev vehicles are prone to greater lateral tilting or displacement when levitating, compared to medium- and low-speed maglev vehicles, making passive guidance alone insufficient to meet their stable operation requirements. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an auxiliary guidance and fast turnout structure for a suspended permanent magnet electromagnetic hybrid levitation vehicle, so as to overcome at least the problem of poor guidance stability caused by the known passive guidance method of suspended maglev vehicles using traditional medium and low speed maglev vehicles.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] This invention provides a suspended permanent magnet electromagnetic hybrid levitation vehicle auxiliary guidance and rapid turnout passage structure, comprising:

[0008] Maglev vehicles are equipped with levitation electromagnets and linear motors;

[0009] The main track structure includes a suspension rail that corresponds to and cooperates with the levitation electromagnet, and a traction rail that corresponds to and cooperates with the linear motor; the suspension rail and the traction rail are both located above the maglev vehicle and extend longitudinally parallel to each other and opposite to each other.

[0010] The auxiliary track structure includes two rails; the two rails are located below the maglev vehicle and extend longitudinally parallel to each other and opposite to each other.

[0011] An auxiliary guiding structure includes wheels that correspond to and cooperate with the rails; the wheels are connected to the maglev vehicle and have a flange located inside the corresponding rail.

[0012] Optionally, the auxiliary guiding structure further includes a shock absorber corresponding to the wheel, and the wheel is connected to the maglev vehicle through the corresponding shock absorber.

[0013] Optionally, the vibration damper includes:

[0014] The telescopic rod is vertically extendable; one end of the telescopic rod is connected to the maglev vehicle, and the other end is connected to the corresponding wheel.

[0015] A spring is coaxially sleeved on the outside of the telescopic rod; one end of the spring is connected to the fixed part of the telescopic rod, and the other end is connected to the movable part of the telescopic rod.

[0016] Optionally, there are two suspension tracks, which are arranged parallel to each other and opposite to each other;

[0017] The traction rail is located at the center between the two suspension rails.

[0018] Optionally, the main track structure further includes:

[0019] A box girder extends longitudinally and is located above the maglev vehicle; both the suspension rail and the traction rail are laid on the box girder.

[0020] Support beams are used to support the box girder.

[0021] Optionally, the maglev vehicle is provided with a mounting frame on its top, and both the levitation electromagnet and the linear motor are mounted on the mounting frame.

[0022] Optionally, the levitation electromagnet is a permanent magnet-electromagnetic hybrid electromagnet.

[0023] Optionally, the suspended permanent magnet electromagnetic hybrid levitation vehicle auxiliary guidance and rapid turnout passage structure further includes:

[0024] The turnout structure is used to switch the operating lines of the maglev vehicle; the turnout structure is a subway turnout.

[0025] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0026] This invention lays rails beneath a maglev vehicle and equips the vehicle with wheels that correspond to these rails. When the maglev vehicle's lateral tilt or displacement becomes excessive, exceeding the guiding and adjusting capabilities of the levitation electromagnet and rails, the wheel flanges contacting the corresponding rails create a limiting and auxiliary guiding structure. This prevents further increases in lateral tilt or displacement, allowing the maglev vehicle to maintain a stable levitation state. Simultaneously, the wheel-rail coordination improves the maglev vehicle's turnaround response speed, enabling rapid turnarounds. Furthermore, in the event of levitation failure, the wheels can support the maglev vehicle's continued movement on the rails, enhancing the system's fault response capability. Attached Figure Description

[0027] Figure 1 A schematic diagram of a suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout structure provided for an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Side view;

[0029] Figure 3 for Figure 2 Enlarged view of the local structure at point A;

[0030] Figure 4 for Figure 2 Enlarged view of the local structure at point B.

[0031] Icons: 10-Magnetic levitation vehicle, 11-Mounting frame, 12-Suspension electromagnet, 13-Linear motor, 20-Main track structure, 21-Suspension rail, 22-Traction rail, 23-Box girder, 24-Support beam, 30-Auxiliary track structure, 31-Rail, 40-Auxiliary guide structure, 41-Wheel, 411-Wheel flange, 42-Shock absorber, 421-Telescopic rod, 422-Spring, 50-Turnout structure. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this invention may have fewer components, other components not shown in the drawings, different components, components with different arrangements, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0034] Example 1

[0035] Embodiment 1 of the present invention provides an auxiliary guidance and rapid turnout crossing structure for a suspended permanent magnet electromagnetic hybrid levitation vehicle, aiming to overcome the technical bottleneck of poor guidance stability faced by suspended maglev transportation systems. For ease of explanation, the auxiliary guidance and rapid turnout crossing structure for a suspended permanent magnet electromagnetic hybrid levitation vehicle provided in this embodiment of the present invention will be referred to as the "auxiliary guidance and rapid turnout crossing structure" below.

[0036] Figure 1 The schematic diagram illustrates the structure of the auxiliary guidance and fast turnout passage structure provided in Embodiment 1 of the present invention. Figure 2 for Figure 1 Side view.

[0037] like Figure 1 and Figure 2 As shown in Embodiment 1 of the present invention, the auxiliary guidance and rapid turnout structure may include a maglev vehicle 10, a main track structure 20, an auxiliary track structure 30, and an auxiliary guidance structure 40.

[0038] Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle. (See image below.) Figure 2 and Figure 3 As shown, a mounting frame 11 can be provided on the top of the maglev vehicle 10, on which a levitation electromagnet 12 and a linear motor 13 are mounted. Exemplarily, there can be two levitation electromagnets 12, which are mounted opposite each other on the mounting frame 11, and the linear motor 13 can be located at the center between the two levitation electromagnets 12.

[0039] Continue to refer to Figure 3 The main track structure 20 may include a suspension rail 21 corresponding to the levitation electromagnet 12, and a traction rail 22 corresponding to the linear motor 13. Both the suspension rail 21 and the traction rail 22 are located above the maglev vehicle 10 and extend longitudinally parallel to each other. The suspension rail 21 may be a U-shaped rail, and the traction rail 22 may be an aluminum plate.

[0040] It is understandable that when there are two levitation electromagnets 12 and the linear motor 13 is located at the center between the two levitation electromagnets 12, there are two corresponding levitation rails 21. The two levitation rails 21 are set parallel to each other and opposite to each other, so that the levitation rails 21 correspond one-to-one with the levitation electromagnets 12. The traction rail 22 is located at the center between the two levitation rails 21.

[0041] The levitation electromagnet 12 is mainly used in conjunction with the levitation rail 21 to generate a levitation force that levitates the maglev vehicle 10 and to generate an attractive force that guides the maglev vehicle 10. The linear motor 13 is mainly used in conjunction with the traction rail 22 to generate a traction force or braking force that causes the maglev vehicle 10 to travel longitudinally or brake.

[0042] Furthermore, the levitation electromagnet 12 provided in Embodiment 1 of the present invention can be a permanent magnet-electromagnetic hybrid electromagnet, particularly the hybrid electromagnet disclosed in the patent document with application number "CN202410702106.X" and patent title "A Permanent Magnet-Electromagnetic Hybrid Electromagnet". The permanent magnet-electromagnetic hybrid electromagnet is a hybrid electromagnet that includes both a permanent magnet portion and an electromagnet portion. The levitation force provided by the permanent magnet-electromagnetic hybrid electromagnet includes a first levitation force generated by the permanent magnet portion cooperating with the levitation rail 21, and a second levitation force generated by the electromagnet portion cooperating with the levitation rail 21 after being energized. In the case of this type of permanent magnet-electromagnetic hybrid electromagnet, since it includes a permanent magnet portion, a basic levitation force, namely the first levitation force, exists between the permanent magnet-electromagnetic hybrid electromagnet and the levitation rail 21 even when the electromagnet portion is not energized. Given a fixed levitation force required for the normal levitation of the maglev vehicle 10, this hybrid electromagnet can reduce the second levitation force provided by the electromagnet portion. Compared with maglev systems based on conventional electromagnetic levitation technology, this maglev system using permanent magnet electromagnetic hybrid electromagnets has a significant advantage in terms of energy consumption and can significantly reduce energy consumption.

[0043] Furthermore, by employing the aforementioned permanent magnet-electromagnetic hybrid electromagnet, the maglev vehicle 10 can also achieve an anti-lock-down function, that is, in the event of a malfunction in the electromagnet portion of the permanent magnet-electromagnetic hybrid electromagnet, it can prevent the permanent magnet-electromagnetic hybrid electromagnet from adhering to the suspension track 21 under the action of the first levitation force. The specific structure and function of the permanent magnet-electromagnetic hybrid electromagnet can be found in the aforementioned patent documents, and will not be elaborated upon here.

[0044] Reference Figure 1 and Figure 2 As shown, to achieve stable installation of the suspension rail 21 and the traction rail 22, the main track structure 20 may further include a box girder 23 and several support beams 24. The box girder 23 extends longitudinally and is located above the maglev vehicle 10. Both the suspension rail 21 and the traction rail 22 can be laid on the bottom of the box girder 23.

[0045] Several support beams 24 are used to stably support the box girder 23 above the maglev vehicle 10, so that the maglev vehicle 10 can levitate and travel below the box girder 23. For example, the support beams 24 can be in a U-shape.

[0046] Reference Figure 2 and Figure 4 As shown, the auxiliary track structure 30 includes two rails 31. The two rails 31 are laid beneath the maglev vehicle 10 and extend longitudinally parallel to each other and opposite to each other. The auxiliary guide structure 40 includes wheels 41 that correspond to and cooperate with the rails 31. The wheels 41 are connected to the bottom of the maglev vehicle 10 and have flanges 411 located inside the corresponding rails 31. Here, "inside the rails 31" refers to the side of the two rails 31 facing each other.

[0047] Based on the above setup, under normal conditions, the maglev vehicle 10, through the combined action of the levitation electromagnet 12 and the levitation rail 21, and the linear motor 13 and the traction rail 22, can levitate below the box girder 23 and travel longitudinally. At this time, there is a gap between the wheel 41 and the corresponding rail 31, and the two do not contact each other (see...). Figure 4 In this state, the maglev vehicle 10 can be guided by the attractive force generated by the cooperation between the levitation electromagnet 12 and the levitation rail 21 to maintain a stable levitation driving state.

[0048] Correspondingly, when the maglev vehicle 10 tilts or laterally due to an anomaly, causing excessive tilting or lateral displacement that exceeds the guiding and adjustment capabilities of the levitation electromagnet 12 and the levitation rail 21, the wheel flanges 411 of the wheels 41 in the direction of tilting or lateral displacement can be tightly attached to the inner side of the corresponding rail 31. This allows the wheel flanges 411 and the corresponding rail 31 to play a limiting and auxiliary guiding role, preventing the tilting or lateral displacement of the maglev vehicle 10 from increasing further, thus enabling the maglev vehicle 10 to continue to maintain a stable levitation driving state.

[0049] Furthermore, when the maglev vehicle 10 passes through a switch with a small track radius, relying solely on the guiding and adjusting capabilities of the levitation electromagnet 12 and the levitation rail 21 is insufficient to achieve accurate track switching. This invention, through the provision of an auxiliary track structure 30 and an auxiliary guiding structure 40, enables the maglev vehicle 10 to smoothly and accurately switch tracks by relying on the continuous contact between the wheel flange 411 of the wheel 41 and the corresponding rail 31. This allows the maglev vehicle 10 to respond quickly to track changes when passing a switch, thereby increasing its speed at which it passes through switches.

[0050] Furthermore, when the maglev vehicle 10 fails to levitate due to an anomaly, the wheels 41 can land on the corresponding rails 31 and move along the corresponding rails 31 to support the maglev vehicle 10 and allow the maglev vehicle 10 to continue to move longitudinally.

[0051] In some possible embodiments, refer to Figure 4 As shown, the auxiliary guiding structure 40 may also include a shock absorber 42 corresponding to the wheel 41. For a single wheel 41, the wheel 41 is connected to the maglev vehicle 10 via the shock absorber 42. The shock absorber 42 may be a vibration damping device capable of effectively absorbing vertical vibrations.

[0052] It is worth noting that by equipping each wheel 41 with a shock absorber 42, it is beneficial to reduce the rigid impact generated when the wheel 41 contacts the corresponding rail 31, as well as the vibration transmitted to the maglev vehicle 10, thereby helping to improve the stability of the maglev vehicle 10 when the wheel 41 contacts the corresponding rail 31.

[0053] In some possible embodiments, reference continues to be made to Figure 4 The shock absorber 42 may further include a telescopic rod 421 and a spring 422. The telescopic rod 421 extends vertically and is telescopic in the vertical direction. One end of the telescopic rod 421 is connected to the bottom of the maglev vehicle 10, and the other end is connected to the wheel 41. The spring 422 is coaxially sleeved on the outside of the telescopic rod 421. One end of the spring 422 is connected to the fixed part of the telescopic rod 421, and the other end is connected to the movable part of the telescopic rod 421, so that the spring 422 can undergo elastic deformation in the vertical direction.

[0054] The damper 42 designed in this way can not only effectively absorb vertical vibration by relying on the elastic deformation of the spring 422 along the vertical direction, but also has a simple structure and is easy to manufacture, use and maintain.

[0055] Example 2

[0056] Building upon Example 1, the inventors of this invention further discovered that, in terms of turnout design, known suspended maglev transport systems typically employ medium- and low-speed maglev turnouts to switch the operating lines of the maglev vehicle 10. Because the switching time of medium- and low-speed maglev turnouts is as long as 15 seconds, the single turnaround time of the maglev vehicle 10 at the turnout exceeds three and a half minutes, severely restricting operational efficiency. Furthermore, medium- and low-speed maglev turnouts also suffer from high construction costs and large land area requirements, making them difficult to adapt to the narrow spatial layouts of cities.

[0057] Therefore, Embodiment 2 of the present invention provides another suspended permanent magnet electromagnetic hybrid levitation vehicle auxiliary guidance and rapid turnout structure. Unlike Embodiment 1, the auxiliary guidance and rapid turnout structure provided in Embodiment 2 may further include a turnout structure 50 disposed at a predetermined position on the operating line of the maglev vehicle 10. The turnout structure 50 is used to realize the switching of the operating line of the maglev vehicle 10, and this turnout structure 50 is a subway turnout known in the prior art.

[0058] Studies show that compared with medium and low speed maglev turnouts, subway turnouts have many advantages. For example, subway turnouts only take 8 seconds to switch tracks, enabling rapid track switching. They also have relatively low construction costs, which helps control costs in large-scale line construction. Furthermore, subway turnouts occupy less space, making them better suited to urban environments with limited space. Their turnaround time can be controlled within 2 minutes, which helps improve operational efficiency.

[0059] According to Embodiment 2 of the present invention, by using a subway turnout as the turnout structure 50 and cooperating with the auxiliary guide structure 40 set in Embodiment 1 of the present invention, it is beneficial for the maglev vehicle 10 to pass through the turnout quickly and smoothly, thereby improving the operating efficiency of the maglev vehicle 10 and reducing the construction cost of the entire system.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout crossing structure, characterized in that, include: The maglev vehicle is equipped with a levitation electromagnet and a linear motor; the levitation electromagnet is a permanent magnet-electromagnetic hybrid electromagnet. The main track structure includes a suspension rail that corresponds to and cooperates with the levitation electromagnet, and a traction rail that corresponds to and cooperates with the linear motor; the suspension rail and the traction rail are both located above the maglev vehicle and extend longitudinally parallel to each other and opposite to each other. The auxiliary track structure includes two rails; the two rails are located below the maglev vehicle and extend longitudinally parallel to each other and opposite to each other. An auxiliary guiding structure includes wheels that correspond to and cooperate with the rails; the wheels are connected to the maglev vehicle and have a flange located inside the corresponding rail. The turnout structure is used to switch the operating lines of the maglev vehicle; the turnout structure is a subway turnout.

2. The suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout structure according to claim 1, characterized in that, The auxiliary guiding structure also includes a shock absorber corresponding to the wheel, and the wheel is connected to the maglev vehicle through the corresponding shock absorber.

3. The suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout structure according to claim 2, characterized in that, The vibration damper includes: The telescopic rod is vertically extendable; one end of the telescopic rod is connected to the maglev vehicle, and the other end is connected to the corresponding wheel. A spring is coaxially sleeved on the outside of the telescopic rod; one end of the spring is connected to the fixed part of the telescopic rod, and the other end is connected to the movable part of the telescopic rod.

4. The suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout passage structure according to claim 1, characterized in that, There are two suspension tracks, which are arranged parallel to each other and opposite to each other; The traction rail is located at the center between the two suspension rails.

5. The suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout structure according to claim 1, characterized in that, The main track structure also includes: A box girder extends longitudinally and is located above the maglev vehicle; both the suspension rail and the traction rail are laid on the box girder. Support beams are used to support the box girder.

6. The suspended permanent magnet electromagnetic hybrid suspension vehicle auxiliary guidance and rapid turnout structure according to claim 1, characterized in that, The maglev vehicle is equipped with a mounting frame on its top, and both the levitation electromagnet and the linear motor are mounted on the mounting frame.

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