A short-wing electric magnetic levitation transportation system

Abstract

The utility model relates to a short-wing electric magnetic levitation transportation system, including a magnetic levitation vehicle and a U-shaped channel, wherein the magnetic levitation vehicle is placed in the U-shaped channel, and permanent magnet tracks are arranged on both sides of the top of the U-shaped channel, and permanent magnet strips are arranged on the roof side wings on both sides of the top of the magnetic levitation vehicle, and the permanent magnet strips correspond to the permanent magnet tracks up and down and have the same polarity; electric drive wheels are arranged at the bottom of the magnetic levitation vehicle, and guide wheels are arranged on both sides of the magnetic levitation vehicle, and the guide wheels are in contact with the inner wall of the U-shaped channel. The utility model electric magnetic levitation vehicle adopts an upper suspension design scheme, which can avoid vehicle safety problems caused by the adsorption of iron objects at the bottom of the U-shaped channel. The permanent magnet track at the top of the U-shaped channel can be cleaned regularly or irregularly to ensure the cleanliness of the surface of the permanent magnet track, so that the magnetic levitation vehicle can run safely and smoothly.

Description

Technical Field

[0001] The utility model relates to a short-wing electric magnetic suspension transportation system, belonging to the technical field of magnetic suspension vehicles. Background Art

[0002] At present, the driving mode of existing maglev vehicles is mainly passive. A maglev driving device is set on the track to make the vehicle levitate on the track and provide driving force through an external driving device. The starting, moving and braking of the vehicle are all controlled by the outside, and there is no driving device installed on the vehicle body.

[0003] Chinese patent document CN111572362A discloses a wheel-rail type magnetic levitation vehicle system, including a U-shaped channel and a magnetic levitation vehicle placed in the U-shaped channel; two permanent magnet roadbeds and a wheel roadbed are arranged at the bottom of the U-shaped channel, and permanent magnets A are laid on the two permanent magnet roadbeds; the magnetic levitation vehicle includes a body, a chassis, a front drive wheel and a rear drive wheel, permanent magnets B are arranged on both sides of the chassis, and permanent magnets B correspond to permanent magnets A up and down and have the same polarity, and the front drive wheel and the rear drive wheel are placed on the wheel roadbed; power supply lines are arranged on both sides of the top of the U-shaped channel, and power pick-up cables are arranged on both sides of the body, and the power pick-up cables are in contact with the power supply lines to provide power for the magnetic levitation vehicle. The utility model magnetic levitation vehicle is an improvement on the original permanent magnetic levitation vehicle. The original permanent magnetic levitation vehicle cannot make the vehicle climb, go downhill, slow down in a small radius, etc., which greatly limits the development space. The utility model can effectively avoid the above defects and can meet most road conditions.

[0004] However, the above solution lays a permanent magnet track at the bottom of the U-shaped channel, which may attract iron objects. It is also inconvenient to clean the bottom of the U-shaped channel, which may easily cause safety hazards to the transport vehicle. In addition, since permanent magnets are also arranged on both sides of the chassis of the maglev vehicle, only the front and rear drive wheels are arranged on the front and rear sides of the vehicle body, the vehicle body may easily tilt during high-speed operation. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a short-wing electric magnetic levitation transportation system. The magnetic levitation structure is arranged on both sides of the roof of the electric magnetic levitation vehicle, that is, side wings are arranged on both sides of the roof and the magnetic levitation structure is installed through the side wings, which is convenient for cleaning and improves operation safety.

[0006] The technical solution of the utility model is as follows:

[0007] A short-wing electric magnetic levitation transportation system comprises a magnetic levitation vehicle and a U-shaped channel, wherein the magnetic levitation vehicle is placed in the U-shaped channel, permanent magnet tracks are arranged on both sides of the top of the U-shaped channel, and permanent magnet strips are arranged on the roof side wings on both sides of the top of the magnetic levitation vehicle, and the permanent magnet strips correspond to the permanent magnet tracks up and down and have the same polarity;

[0008] The bottom of the maglev vehicle is provided with electric drive wheels, and both sides of the maglev vehicle are provided with guide wheels, which are in contact with the inner wall of the U-shaped channel.

[0009] Preferably, the permanent magnet track comprises a permanent magnet, a covering net and an outer shell, the permanent magnet is laid on the top of the U-shaped channel, the covering net is placed on the upper surface of the permanent magnet, and the outer shell covers the covering net and the permanent magnet.

[0010] Preferably, the permanent magnet strip comprises a permanent magnet, a covering net and an outer shell, the permanent magnet is arranged on the side wing of the roof, the covering net is placed on the lower surface of the permanent magnet, and the outer shell covers the covering net and the permanent magnet.

[0011] Preferably, the covering net is made of ultra-high molecular weight polyethylene material.

[0012] Preferably, the outer shell is made of stainless steel or titanium alloy material with low magnetic permeability.

[0013] Preferably, an adjustable magnetic buoyancy mechanism is provided in the middle of the roof wing, and the adjustable magnetic buoyancy mechanism includes a permanent magnet strip, a jack, a support seat and a servo motor, the permanent magnet strip is provided on the jack, the jack is provided on the roof wing through the support seat, and the servo motor drives the lead screw connected to the jack. The advantage of this design is that the servo motor drives the jack to operate, driving the permanent magnet strip to rise and fall, thereby adjusting the magnetic buoyancy or repulsion to meet different working conditions during the operation of the magnetic levitation vehicle.

[0014] Preferably, two rows of guide wheels are arranged on both sides of the magnetic levitation vehicle, including an upper row of guide wheels and a lower row of guide wheels.

[0015] Preferably, the guide wheel is driven and controlled by a hydraulic system to achieve telescopic adjustment.

[0016] Preferably, the two sides of the magnetic levitation vehicle are also provided with anti-roll devices, and the anti-roll devices include a height adjustment motor, a jack, a jack motor, a permanent magnet A and a permanent magnet B. The jack is arranged on the side wall of the carriage of the magnetic levitation vehicle, the height adjustment motor is connected to the jack through a gear rack structure, the jack motor drives the lead screw connected to the jack, and the permanent magnet A and the permanent magnet B are relatively arranged on the jack and the inner wall of the U-shaped channel. The advantage of this design is that the permanent magnet B forms a permanent magnetic repulsion belt on the inner wall of the U-shaped channel, and the permanent magnet A and the permanent magnet B on both sides of the carriage form a repulsion force, so that the carriage remains in a central position during driving, which can further prevent the vehicle from rolling over and causing accidents.

[0017] Preferably, a horizontal balancer is provided in the carriage.

[0018] Preferably, a hanging ring is provided on the top of the magnetic levitation vehicle.

[0019] Preferably, the electric drive wheel is arranged at the bottom of the magnetic levitation vehicle through an elastic vibration reduction structure.

[0020] Preferably, the electric drive wheel includes one or two side-by-side wheel bodies.

[0021] Preferably, a limit wheel track is provided at the bottom of the U-shaped channel, and the limit wheel track is located on one side of a wheel body or between two side-by-side wheel bodies. The advantage of this design is that when the electric drive wheel travels at the bottom of the U-shaped channel, the limit wheel track can prevent the electric drive wheel from running off the track and prevent the vehicle from rolling over.

[0022] Preferably, a balance meter is provided in the vehicle compartment. The advantage of this design is that the balance meter can sense whether the vehicle has a roll displacement or other phenomena during driving, and adjust the vehicle body posture through the guide wheels on both sides of the vehicle compartment to ensure that it always maintains an optimal state during driving.

[0023] Preferably, the U-shaped channel includes a platform section and a running section, the platform section includes a gradient magnetic section with low magnetic flux and a non-magnetic section, and the running section is a stable magnetic section with high magnetic flux. The advantage of this design is that the magnetic levitation force is small in the platform section, and part of the weight of the maglev vehicle is pressed on the wheels. At this time, the electric drive wheels can be used to achieve smooth entry and exit, making it convenient for passengers to get on and off the vehicle smoothly and comfortably; in the running section, the maglev vehicle is in a suspended state, and the electric drive wheels bear a small weight, which can achieve high-speed operation.

[0024] Preferably, a rechargeable power battery pack is arranged in the magnetic levitation vehicle, and a charging port for charging the power battery pack is arranged on the vehicle body. The advantage of this design is that the rechargeable power battery pack can be charged in the parking lot to ensure the power supply of the magnetic levitation vehicle.

[0025] Preferably, the magnetic levitation vehicle is provided with an automatic control system, which can realize vehicle positioning, starting, acceleration and deceleration functions.

[0026] The technical features and beneficial effects of the utility model:

[0027] 1. The electric magnetic levitation vehicle of the utility model can effectively overcome the risk of tilting during vehicle operation. The vehicle as a whole is suspended by magnetic forces on both sides, and the electric drive wheels arranged at the bottom of the vehicle can ensure the overall smooth operation of the vehicle.

[0028] 2. The utility model electric maglev vehicle adopts an upper suspension design, which can avoid vehicle safety problems caused by the adsorption of iron objects at the bottom of the U-shaped channel. The permanent magnetic track at the top of the U-shaped channel can be cleaned regularly or irregularly to ensure the cleanliness of the permanent magnetic track surface, so that the maglev vehicle can run safely and smoothly.

[0029] 3. The electric magnetic levitation vehicle of the utility model is scientifically and reasonably designed, and can realize efficient utilization of energy. When the vehicle is running at high speed, it can glide with the help of permanent magnetic tracks. For example, it can glide for a long distance in a vacuum environment, reducing the energy output of the electric drive wheel and achieving the purpose of low carbon and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the electric magnetic levitation vehicle of the utility model;

[0031] Figure 2 It is a schematic diagram of the side structure of the electric magnetic levitation vehicle of the utility model;

[0032] Figure 3 It is a schematic diagram of the partial structure of the top of the electric magnetic levitation vehicle of the utility model;

[0033] Figure 4a The structure of the wheel part of the electric magnetic suspension vehicle of the utility model is shown in FIG. Figure 1 ;

[0034] Figure 4b The structure of the wheel part of the electric magnetic suspension vehicle of the utility model is shown in FIG. Figure 2 ;

[0035] Figure 4c The structure of the wheel part of the electric magnetic suspension vehicle of the utility model is shown in FIG. Figure 3 ;

[0036] Figure 5 This is a schematic diagram of the connection relationship between the guide wheel and the hydraulic system in the utility model;

[0037] In the figure: 1-electric drive wheel, 2-left lower guide wheel, 3-battery pack, 4-guide wheel hydraulic system, 5-carriage, 6-left upper guide wheel, 7-U-shaped channel, 8-permanent magnet, 9-outer shell, 10-covering net, 11-outer shell, 12-covering net, 13-permanent magnet, 14-jack, 15-servo motor, 16-support seat, 17-roof side wing, 18-crossbeam, 19-horizontal balancer, 20-roof, 21-balancer, 22-electronic control system, 23-elastic structure, 24-height adjustment motor, 25 - jack, 26-permanent magnet A, 27-jack motor, 28-rear end lower guide wheel, 29-rear end middle drive wheel, 30-vent, 31-lifting ring, 32-carriage door, 33-car window, 34-charging port, 35-gradual magnetic section, 36-climbing section, 37-non-magnetic section, 38-limited wheel rail, 39-side drive wheel, 40-upper cylinder oil circuit, 41-oil cylinder, 42-piston rod, 43-reversing valve, 44-drain oil tank, 45-hydraulic pump, 46-oil inlet pipeline, 47-lower cylinder oil circuit, 48-permanent magnet B. DETAILED DESCRIPTION

[0038] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings, but is not limited thereto.

[0039] Embodiment 1:

[0040] like Figure 1-5 As shown, this embodiment provides a short-wing electric magnetic levitation transportation system, including a magnetic levitation vehicle and a U-shaped channel, the magnetic levitation vehicle is placed in the U-shaped channel, permanent magnet tracks are arranged on both sides of the top of the U-shaped channel, and permanent magnet strips are arranged on the roof side wings 17 on both sides of the top of the magnetic levitation vehicle, and the permanent magnet strips correspond to the permanent magnet tracks up and down and have the same polarity;

[0041] The bottom of the magnetic levitation vehicle is provided with an electric drive wheel 1, and both sides of the magnetic levitation vehicle are provided with guide wheels, which are in contact with the inner wall of the U-shaped channel.

[0042] Specifically, the electric maglev vehicle of the utility model has a relatively small overall specification, a vehicle length of about 5 meters, and can accommodate 5-10 passengers. It can be built in a metropolitan area, and can provide an efficient way of travel for the city. The entire maglev transportation system can be erected in the air or in an underground tunnel in the city. The U-shaped channel is used to accommodate and restrict the electric maglev vehicle. At least 2 / 3 of the maglev vehicle compartment is placed in the U-shaped channel. The top of the maglev vehicle is higher than the U-shaped channel and short wings are arranged on both sides of the top of the compartment. Corresponding permanent magnets of the same polarity are arranged on the short wings and the top of the U-shaped channel, respectively, so that the compartment forms a suspended state during operation, and high-speed operation can be achieved with the help of a small electric drive force.

[0043] The permanent magnet track includes a permanent magnet 8 , a covering net 10 and an outer shell 9 . The permanent magnet 8 is laid on the top of the U-shaped channel 7 , the covering net 10 is placed on the upper surface of the permanent magnet 8 , and the outer shell 9 covers the covering net 10 and the permanent magnet 8 .

[0044] The permanent magnet strip comprises a permanent magnet 13 , a covering net 12 and an outer shell 11 . The permanent magnet 13 is arranged on the side wing of the roof, the covering net 12 is placed on the lower surface of the permanent magnet, and the outer shell 11 covers the covering net 12 and the permanent magnet 13 .

[0045] Covering net 10,12 is made of ultra-high molecular weight polyethylene (UHMWPE) material, and outer shell 9,11 is made of stainless steel or titanium alloy material with low magnetic permeability, and covering net and outer shell are used to fix and protect permanent magnet 8,13. Covering net and ultra-high strength adhesive are used to glue permanent magnet to fixed surface (U-shaped channel top surface and roof wing lower surface in the present embodiment) to prevent permanent magnet from being affected by magnetic field or external force, and reverse magnet appears and is adsorbed on other permanent magnet surfaces when it is separated from fixed surface, and magnet opposite poles attract each other to form protrusions, which affects vehicle operation. Outer shell can prevent permanent magnet particles on permanent magnet track or permanent magnet particles on both sides of roof from accidentally detaching, and attach to permanent magnet surface to form magnetic pollution particles that are difficult to clean.

[0046] An adjustable magnetic buoyancy mechanism is arranged at the middle of the roof wing, and the adjustable magnetic buoyancy mechanism includes a permanent magnet strip, a jack 14, a support seat 16 and a servo motor 15. The permanent magnet strip is arranged on the jack 14, and the jack 14 is arranged on the roof wing through the support seat 16. The servo motor 15 drives the lead screw connected to the jack 14. The servo motor 15 drives the jack 14 to operate, driving the permanent magnet strip to rise and fall, thereby adjusting the magnetic buoyancy or repulsion to meet different working conditions during the operation of the magnetic levitation vehicle.

[0047] There are two rows of guide wheels on the left and right sides of the maglev vehicle, including upper and lower guide wheels. The guide wheels are driven and controlled by a hydraulic system to achieve telescopic adjustment. Figure 5 As shown, it includes two oil cylinders 41, a reversing valve 43, a hydraulic pump 45 and an empty oil tank 44. The guide wheel is placed between the two oil cylinders, and the piston rods 42 of the oil cylinders on both sides are connected by shafts. The hydraulic pump 45 is connected to the oil cylinder 41 through an oil circuit, and the oil circuit is provided with a reversing valve 43 and an empty oil tank 44. The guide wheel contacts the inner wall of the U-shaped channel to achieve soft support.

[0048] A horizontal balancer 19 and a balance meter 21 are provided in the car. The balance meter 21 can sense whether the vehicle has a roll displacement during driving, and adjust the vehicle posture through the guide wheels on both sides of the car and the horizontal balancer 19 to ensure that it always maintains an optimal state during driving. The structure of the horizontal balancer can refer to the scheme disclosed in the Chinese patent application (application number 202010554726.5).

[0049] The electric drive wheel 1 is arranged at the bottom of the magnetic levitation vehicle through an elastic vibration reduction structure. The electric drive wheel includes two side-by-side wheel bodies. A limit wheel track 38 is arranged at the bottom of the U-shaped channel. The limit wheel track is trapezoidal and located between the two side-by-side wheel bodies. When the electric drive wheel travels at the bottom of the U-shaped channel, the limit wheel track can prevent the electric drive wheel from running off and has the function of preventing the vehicle from rolling.

[0050] The U-shaped channel includes a platform section and a running section. The platform section includes a gradient magnetic section 35 with low magnetic flux and a non-magnetic section 37, and the running section is a stable magnetic section with high magnetic flux. In the platform section, part of the weight of the maglev vehicle is pressed on the wheels, which can achieve smooth entry and exit, and facilitate passengers to get on and off the vehicle smoothly and comfortably; in the running section, the maglev vehicle is in a suspended state, and the electric drive wheels bear less weight, which can achieve high-speed operation. A vent 30 is also provided on the U-shaped channel.

[0051] A rechargeable power battery pack 3 is provided in the maglev vehicle, and a charging port 34 for charging the power battery pack is provided on the carriage. The rechargeable power battery pack can be charged in the parking lot to ensure the power supply of the maglev vehicle.

[0052] The maglev vehicle is equipped with an automatic control system, which can realize vehicle positioning, starting, acceleration and deceleration functions.

[0053] The technical solution of this embodiment changes the traditional method of laying the magnetic suspension structure at the bottom of the magnetic suspension vehicle and the bottom of the U-shaped channel, and innovatively sets the magnetic suspension structure at the top of the U-shaped channel and the magnetic suspension vehicle, which is convenient for cleaning and avoids adsorption of objects, greatly improving the operation safety. The guide wheels set on both sides of the car can form a soft support with the inner wall of the U-shaped channel to ensure the overall stability of the car body during operation.

[0054] Embodiment 2:

[0055] A short-wing electric magnetic levitation transportation system, the structure of which is as described in Example 1, except that: anti-roll devices are also arranged on both sides of the magnetic levitation vehicle, the anti-roll devices include a height adjustment motor 24, a jack 25, a jack motor 27, a permanent magnet A26 and a permanent magnet B48, the jack 25 is arranged on the side wall of the carriage of the magnetic levitation vehicle, the height adjustment motor 24 is connected to the jack 25 through a gear rack structure, the jack motor 27 drives the lead screw connected to the jack 25, and the permanent magnet A26 and the permanent magnet B48 are arranged on the jack 25 and the inner wall of the U-shaped channel 7. The permanent magnet B48 forms a permanent magnetic repulsion belt on the inner wall of the U-shaped channel, and the permanent magnet A26 on both sides of the carriage forms a repulsion force with the permanent magnet B48, so that the carriage is kept in the middle position during driving, which can prevent the vehicle from rolling over and causing accidents.

[0056] Compared with the traditional technology, the technical solution of this embodiment sets the magnetic levitation force of the maglev vehicle on the top of the vehicle, which changes the traditional way of setting the magnetic levitation force on the bottom of the vehicle. In addition, at least 2 / 3 of the vehicle is placed in the U-shaped channel, which can enhance the safety of the maglev vehicle. In addition, guide wheels and anti-roll devices are set on both sides of the vehicle to improve the stability of the vehicle during operation.

[0057] Embodiment 3:

[0058] A short-wing electric magnetic levitation transportation system, the structure of which is as described in Example 1, except that a lifting ring 31 is provided on the top of the magnetic levitation vehicle. In the maintenance yard, a crane can be connected to the lifting ring on the top of the vehicle to lift the vehicle out of the U-shaped channel to facilitate maintenance by staff.

[0059] Embodiment 4:

[0060] A short-wing electric magnetic levitation transportation system, the structure of which is as described in Example 1, except that the electric drive wheel comprises a wheel body, and a limiting wheel track 38 is arranged on one side of the wheel body to prevent deviation.

[0061] Embodiment 5:

[0062] A working method of the short-wing electric magnetic levitation transportation system as described in Example 1, wherein the specific working process comprises the following steps:

[0063] (1) The maglev train stops at the station platform. After passengers get on and off the train, the control system controls the train door to close.

[0064] (2) The control system starts the electric drive wheel to drive the wheel body to rotate, so that the magnetic levitation vehicle moves forward;

[0065] (3) When the vehicle is about to arrive at the station, the control system controls the servo motor to realize the operation of the adjustable magnetic buoyancy mechanism, thereby reducing the magnetic buoyancy of the vehicle. At this time, the electric drive wheel bears most of the weight of the vehicle, and the vehicle moves to the station by relying on the drive of the electric drive wheel.

[0066] (4) The control system controls the electric car door to open, allowing passengers to get on and off the car;

[0067] (5) Repeat steps (1)-(4) to achieve continuous operation of the magnetic levitation vehicle.

[0068] The above is only a specific implementation of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A short-wing electric magnetic levitation transportation system, characterized in that: The invention comprises a magnetic levitation vehicle and a U-shaped channel, wherein the magnetic levitation vehicle is placed in the U-shaped channel, permanent magnet tracks are arranged on both sides of the top of the U-shaped channel, and permanent magnet strips are arranged on the roof side wings on both sides of the top of the magnetic levitation vehicle, and the permanent magnet strips correspond to the permanent magnet tracks up and down and have the same polarity; The bottom of the maglev vehicle is provided with electric drive wheels, and both sides of the maglev vehicle are provided with guide wheels, which are in contact with the inner wall of the U-shaped channel.

2. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: The permanent magnet track comprises a permanent magnet, a covering net and an outer shell. The permanent magnet is laid on the top of the U-shaped channel, the covering net is placed on the upper surface of the permanent magnet, and the outer shell covers the covering net and the permanent magnet.

3. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: The permanent magnet strip comprises a permanent magnet, a covering net and an outer shell. The permanent magnet is arranged on the side wing of the roof, the covering net is arranged on the lower surface of the permanent magnet, and the outer shell covers the covering net and the permanent magnet.

4. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: An adjustable magnetic buoyancy mechanism is arranged at the middle position of the roof wing, and the adjustable magnetic buoyancy mechanism comprises a permanent magnet strip, a jack, a support seat and a servo motor. The permanent magnet strip is arranged on the jack, and the jack is arranged on the roof wing through the support seat. The servo motor drives a lead screw connected to the jack.

5. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: Anti-roll devices are also provided on both sides of the magnetic levitation vehicle. The anti-roll devices include a height adjustment motor, a jack, a jack motor, a permanent magnet A and a permanent magnet B. The jack is arranged on the side wall of the carriage of the magnetic levitation vehicle. The height adjustment motor is connected to the jack through a gear rack structure. The jack motor drives a lead screw connected to the jack. The permanent magnet A and the permanent magnet B are relatively arranged on the jack and the inner wall of the U-shaped channel.

6. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: A hanging ring is arranged on the top of the magnetic suspension vehicle.

7. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: The electric drive wheel comprises one or two wheel bodies arranged side by side.

8. The short-wing electric magnetic levitation transportation system according to claim 7, characterized in that: A limiting wheel track is arranged at the bottom of the U-shaped channel, and the limiting wheel track is located at one side of a wheel body or between two wheel bodies arranged side by side.

9. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: The U-shaped channel includes a platform section and a running section. The platform section includes a gradually changing magnetic section with low magnetic flux and a non-magnetic section, and the running section is a stable magnetic section with high magnetic flux.

10. The short-wing electric magnetic levitation transportation system according to claim 1, characterized in that: The magnetic suspension vehicle is provided with an automatic control system, which can realize the functions of vehicle positioning, starting, acceleration and deceleration.

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