A test device for a vacuum tube super high-speed train

Abstract

A kind of test device of vacuum tube super high-speed train, including two test benches, two test trains can be made to travel in the same direction or in the opposite direction to carry out test, the vacuum tube enclosed by cooperation of ceiling, side support body and support plate can simulate vacuum environment, the upper linear motor and the lower linear motor in the inside of the magnetically shielded housing below train can form magnetic field after energization, magnetic field can make the induction aluminum plate suspended between the upper linear motor and the lower linear motor and move at high speed, induction aluminum plate can drive test train to move at super high speed by transmission assembly, transmission assembly can be matched with the two states of induction aluminum plate power off and power on, the two sides of induction aluminum plate are respectively provided with limiting device to limit the lateral movement of induction aluminum plate, avoid test train movement deviation, simulate the working condition that test train moves at super high speed by magnetic levitation in vacuum tube, provide reliable test verification support for future linear induction motor driven super high-speed train commercial operation.

Description

Technical Field

[0001] This invention relates to the field of vacuum tube ultra-high-speed trains, and more particularly to a test device for vacuum tube ultra-high-speed trains. Background Technology

[0002] As train speeds continue to increase, the aerodynamic drag experienced by the train also grows rapidly. Friction between wheel-rail trains and the track introduces resistance and friction problems. To address these issues and significantly improve train speed, a vacuum tube maglev transportation system has been proposed. Vacuum tube high-speed trains utilize vacuum tubes to reduce air resistance between the train and the air, and magnetic levitation technology to reduce friction between the train and the track. Therefore, the environment inside the vacuum tube can ensure that the prototype reaches its maximum speed. However, the development of vacuum tube high-speed trains requires extensive testing and verification, and existing technologies lack reliable, effective, and cost-effective testing equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a test device for a vacuum tube ultra-high-speed train, which facilitates the research and development testing of vacuum tube ultra-high-speed trains.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a test device for a vacuum tube ultra-high-speed train, comprising two test benches arranged in parallel for two test trains to travel in the same or opposite directions. The test benches include a base plate set on multiple piers, an anti-magnetic shell on the base plate, a support plate on the upper surface of the anti-magnetic shell, side supports on both sides of the upper surface of the support plate, and passenger passages that can be closed or opened on the side supports. The tops of the two side supports are connected to a canopy. The canopy, the two side supports, and the support plate together form a vacuum tube to accommodate the test train. Vacuum sensors are respectively provided on the inner side of the canopy of the two test benches, and air extraction pipes are respectively connected to the outer side of the canopy of the two test benches. The air extraction pipes are all connected to a vacuum pump. The upper surface of the support plate is provided with two sections of track in the middle. The test train includes a car body and a chassis. Multiple rubber connecting components are provided between the car body and the chassis. Multiple axles are installed on the chassis. The two ends of the axles are respectively provided with wheels that roll on their respective tracks. The antimagnetic shell is a hollow shell formed by multiple antimagnetic steel plates. The inner cavity of the antimagnetic shell is equipped with an induction aluminum plate, multiple upper linear motors and multiple lower linear motors. The top of the upper linear motors is connected to the top side of the inner cavity of the antimagnetic shell, and the bottom of the lower linear motors is connected to the bottom side of the inner cavity of the antimagnetic shell. The induction aluminum plate is located between the upper linear motors and the lower linear motors, and the thickness of the induction aluminum plate is less than the distance between the bottom of the upper linear motor and the top of the lower linear motor. A through slot is provided on the top surface of the antimagnetic housing and the support plate. The length direction of the through slot is parallel to the length direction of the track. A transmission assembly is provided between the car body and the sensing aluminum plate through the through slot. The transmission assembly includes an aluminum plate connecting pin, a car body connecting pin and a connecting sleeve. The aluminum plate connecting pin is connected to the upper surface of the sensing aluminum plate, the car body connecting pin is connected to the bottom surface of the car body, and the closed end of the connecting sleeve is connected to one of the aluminum plate connecting pin and the car body connecting pin. The other end of the aluminum plate connecting pin and the car body connecting pin extends into the open end of the connecting sleeve. An electrical control device is installed on the bottom side of the base plate. Multiple upper linear motors are connected in series and energized, and multiple lower linear motors are connected in series and energized. The power lines of the upper linear motors and the power lines of the lower linear motors are connected in parallel. When the upper and lower linear motors are energized, the sensing aluminum plate can be suspended between the upper and lower linear motors and move along the length of the through groove, so that the sensing aluminum plate can drive the car body to move on the track through the transmission component. The inner cavity of the antimagnetic housing is also equipped with multiple limiting devices. The limiting devices are installed on both horizontal sides of the inner cavity of the antimagnetic housing. Multiple limiting devices on the same side are distributed at intervals along the length of the induction aluminum plate. The limiting devices can block the side wall of the induction aluminum plate to limit the movement of the induction aluminum plate in the direction perpendicular to the track. When the upper linear motor and the lower linear motor are de-energized, the two sides of the induction aluminum plate can fall down respectively and be supported by multiple limiting devices on their respective sides. Two conductors are connected to the middle of the aluminum plate connecting pin. Two cables are provided on the top side of the inner cavity of the antimagnetic housing. Both cables face the inside of the antimagnetic housing. Both cables are parallel to the through groove and are located on both sides of the through groove. When the sensing aluminum plate is in a suspended state, the two conductors can contact the two cables respectively, so that the two conductors can supply power to the vehicle body.

[0005] Preferably, multiple upper linear motors are arranged in two rows within the inner cavity of the antimagnetic housing, with each row spaced apart along the length of the through slot. Multiple lower linear motors are also arranged in two rows within the inner cavity of the antimagnetic housing, with the two rows of lower linear motors located below the two rows of upper linear motors, respectively.

[0006] Preferably, the limiting device includes a limiting sleeve, a baffle, and a spring. One end of the limiting sleeve and the spring are connected to the inner cavity sidewall of the antimagnetic housing. The limiting sleeve has a support surface on the side facing the sensing aluminum plate that can support the edge of the sensing aluminum plate. The spring is located inside the limiting sleeve. One side of the baffle is connected to the spring, and the other side faces the sensing aluminum plate. The radial sidewall of the baffle slides against the inner wall of the limiting sleeve, so that the baffle can be pushed by the sensing aluminum plate and move in the horizontal direction. The elastic force of the spring can limit the movement distance of the baffle and reset the baffle.

[0007] Preferably, the two test benches arranged side by side share the same base plate, and a partition wall is provided between the two test benches.

[0008] According to the above technical solution, the beneficial effects of the present invention are: The experimental device of this invention includes two test benches, allowing two test trains to travel in the same or opposite directions for testing. A vacuum pipe formed by the roof, side supports, and support plates can simulate a vacuum environment. Below the trains, an anti-magnetic shell with magnetic field isolation function is installed. When the upper and lower linear motors inside the anti-magnetic shell are energized, they can work together to form a magnetic field. This magnetic field causes an induction aluminum plate located between the upper and lower linear motors to suspend and move at high speed. The induction aluminum plate can then drive the test train to ultra-high speed via a transmission assembly. The transmission assembly can operate in both energized and de-energized states with the induction aluminum plate. In conjunction with the conductive body, which makes contact with the cable while suspended, power can be supplied to the test train during movement. Limiting devices are provided on both sides of the induction aluminum plate to restrict its lateral movement and prevent the test train from deviating from its course. This successfully simulates the test train's high-speed movement via magnetic levitation in a vacuum tube. The entire test device is reliable, effective, and inexpensive. By adjusting the size of the induction aluminum plate and the power supply to the upper and lower linear motors, parameters such as the test train's speed can be changed, facilitating the research and development of high-speed trains in vacuum tubes. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the test bench; Figure 3 This is a schematic diagram of a limit device.

[0010] The markings in the diagram are: 1. Pier, 2. Base plate, 3. Anti-magnetic shell, 4. Support plate, 5. Side support, 6. Passenger passage, 7. Canopy, 8. Vacuum sensor, 9. Vacuum pump, 10. Air extraction pipe, 11. Partition wall, 12. Vehicle body, 13. Rubber connecting assembly, 14. Underframe, 15. Wheel, 16. Axle, 17. Track, 18. Upper linear motor, 19. Lower linear motor, 20. Induction aluminum plate, 21. Aluminum plate connecting pin, 22. Vehicle body connecting pin, 23. Connecting sleeve, 24. Conductor, 25. Limiting device, 26. Limiting sleeve, 27. Baffle, 28. Spring, 29. Electrical control device. Detailed Implementation

[0011] Referring to the attached diagram, the specific implementation method is as follows: like Figure 1As shown, a test device for a vacuum tube high-speed train includes two test benches arranged side by side for two test trains to travel in the same or opposite directions. The two test benches share the same base plate 2, and a partition wall 11 is provided between the two test benches. A magnetic shield 3 is provided on the base plate 2, and a support plate 4 is laid on the upper surface of the magnetic shield 3. Side supports 5 are provided on both sides of the upper surface of the support plate 4. Passenger passages 6 that can be closed or opened are provided on the side supports 5. The tops of the two side supports 5 are connected to a canopy 7. The canopy 7, the two side supports 5 and the support plate 4 are used to form a vacuum tube to accommodate the test train. Vacuum sensors 8 are provided on the inner side of the canopy 7 of the two test benches, and air extraction pipes 10 are connected to the outer side of the canopy 7 of the two test benches. The air extraction pipes 10 are connected to a vacuum pump 9, so that a vacuum state can be simulated inside the vacuum tube.

[0012] like Figure 1 As shown, the upper surface of the support plate 4 is provided with two sections of track 17 in the middle. The test train includes a car body 12 and a base frame 14. Multiple rubber connecting components 13 are provided between the car body 12 and the base frame 14. Multiple axles 16 are installed on the base frame 14. The two ends of the axles 16 are respectively provided with wheels 15 that roll on their respective tracks 17.

[0013] like Figure 2 As shown, the antimagnetic housing 3 is a hollow housing formed by multiple antimagnetic steel plates. The inner cavity of the antimagnetic housing 3 is provided with an induction aluminum plate 20, multiple upper linear motors 18 and multiple lower linear motors 19. The top of the upper linear motor 18 is connected to the top side of the inner cavity of the antimagnetic housing 3, and the bottom of the lower linear motor 19 is connected to the bottom side of the inner cavity of the antimagnetic housing 3. The induction aluminum plate 20 is located between the upper linear motors 18 and the lower linear motors 19. The thickness of the induction aluminum plate 20 is less than the distance between the bottom of the upper linear motor 18 and the top of the lower linear motor 19, so that the induction aluminum plate 20 can suspend and move between the upper linear motors 18 and the lower linear motors 19.

[0014] like Figure 2 As shown, a through groove is formed on the top surface of the antimagnetic housing 3 and the support plate 4. The length direction of the through groove is parallel to the length direction of the track 17. A transmission assembly is provided between the vehicle body 12 and the sensing aluminum plate 20, passing through the through groove. The transmission assembly includes an aluminum plate connecting pin 21, a vehicle body connecting pin 22, and a connecting sleeve 23. The aluminum plate connecting pin 21 is connected to the upper surface of the sensing aluminum plate 20, and the vehicle body connecting pin 22 is connected to the bottom surface of the vehicle body 12. The closed end of the connecting sleeve 23 is connected to one of the aluminum plate connecting pin 21 and the vehicle body connecting pin 22, and the other of the aluminum plate connecting pin 21 and the vehicle body connecting pin 22 extends into the open end of the connecting sleeve 23. In this embodiment, the closed end of the connecting sleeve 23 is connected to the bottom end of the vehicle body connecting pin 22, and the top end of the aluminum plate connecting pin 21 extends into the open end of the connecting sleeve 23 and has a certain amount of floating.

[0015] like Figure 1 As shown, an electrical control device 29 is provided on the bottom side of the base plate 2. Multiple upper-layer linear motors 18 are arranged in two rows within the inner cavity of the anti-magnetic housing 3, with each row spaced apart along the length of the through slot. Multiple lower-layer linear motors 19 are also arranged in two rows within the inner cavity of the anti-magnetic housing 3, with each row of lower-layer linear motors 19 located below the corresponding rows of upper-layer linear motors 18. The upper-layer linear motors 18 are connected in series and energized, as are the lower-layer linear motors 19. The power lines of the upper-layer linear motors 18 and the lower-layer linear motors 19 are connected in parallel.

[0016] When the upper linear motor 18 and the lower linear motor 19 are energized, the induction aluminum plate 20 can suspend between the upper linear motor 18 and the lower linear motor 19 and move along the length of the through slot. To overcome the influence of gravity, the current of the lower linear motor 19 is usually greater than that of the upper linear motor 18, ensuring that the vehicle body 12 is also in a suspended state. The induction aluminum plate 20 can then drive the vehicle body 12 to move on the track 17 through the transmission assembly. In the suspended state, the wheels 15 are also separated from the track 17, so the friction between the wheels 15 and the track 17 is eliminated. Therefore, not only is the air resistance during the movement of the vehicle body 12 eliminated, but also the frictional resistance during the movement of the vehicle body 12, which facilitates the ultra-high speed movement of the vehicle body 12.

[0017] like Figure 2 As shown, two conductors 24 are connected to the middle of the aluminum plate connecting pin 21. Two cables are provided on the top side of the inner cavity of the antimagnetic housing 3. Both cables face the inside of the antimagnetic housing 3. Both cables are parallel to the through groove and are located on both sides of the through groove. When the sensing aluminum plate 20 is in a suspended state, the two conductors 24 can contact the two cables respectively. Therefore, during the movement of the test train, the two conductors 24 can also continuously supply power to the car body 12.

[0018] like Figure 2 As shown, the inner cavity of the antimagnetic housing 3 is also provided with multiple limiting devices 25. The limiting devices 25 are installed on both horizontal sides of the inner cavity of the antimagnetic housing 3. Multiple limiting devices 25 on the same side are distributed at intervals along the length direction of the sensing aluminum plate 20. The limiting devices 25 can block the side wall of the sensing aluminum plate 20 to limit the movement of the sensing aluminum plate 20 in the direction perpendicular to the track 17. When the upper linear motor 18 and the lower linear motor 19 are in the de-energized state, the two sides of the sensing aluminum plate 20 can fall down respectively and be supported by multiple limiting devices 25 on their respective sides.

[0019] like Figure 3As shown, the limiting device 25 includes a limiting sleeve 26, a baffle 27, and a spring 28. One end of the limiting sleeve 26 and the spring 28 are connected to the inner cavity sidewall of the antimagnetic housing 3. The limiting sleeve 26 has a support surface on the side facing the sensing aluminum plate 20, which can support the edge of the sensing aluminum plate 20. The spring 28 is located inside the limiting sleeve 26. One side of the baffle 27 is connected to the spring 28, and the other side faces the sensing aluminum plate 20. The radial sidewall of the baffle 27 slides against the inner wall of the limiting sleeve 26, so that the baffle 27 can be pushed by the sensing aluminum plate 20 and move in the horizontal direction. The elastic force of the spring 28 can limit the movement distance of the baffle 27 and reset the baffle 27.

[0020] This embodiment uses two test benches to allow two test trains to travel in the same or opposite directions. The vacuum pipe formed by the roof, side supports, and support plates can simulate a vacuum environment. A magnetic shielding shell with magnetic field isolation function is installed below the train. When the upper and lower linear motors inside the shell are energized, they work together to form a magnetic field. This magnetic field causes the induction aluminum plate located between the upper and lower linear motors to levitate and move at high speed. The induction aluminum plate then drives the test train to ultra-high speed through a transmission assembly. The transmission assembly can work in both energized and de-energized states with the induction aluminum plate. Furthermore, through the contact between the conductor and the cable in the levitated state, power can be supplied to the test train during movement. Limiting devices are provided on both sides of the induction aluminum plate to restrict its lateral movement and prevent the test train from deviating from its intended path. This successfully simulates the ultra-high speed movement of the test train through magnetic levitation within the vacuum pipe. By adjusting the size of the induction aluminum plate and the power supply to the upper and lower linear motors, parameters such as the speed of the test train can be changed. The entire test device is reliable, effective, and cost-effective.

Claims

1. A test apparatus for a vacuum tube ultra-high-speed train, characterized in that: The test platform includes two parallel test benches for two test trains to travel in the same or opposite directions. The test bench includes a base plate (2) set on multiple piers (1). The base plate (2) is provided with an antimagnetic shell (3). The upper surface of the antimagnetic shell (3) is covered with a support plate (4). The upper surface of the support plate (4) is provided with side supports (5) on both sides. The side supports (5) are provided with passenger passages (6) that can be closed or opened. The tops of the two side supports (5) are connected to a canopy (7). The canopy (7), the two side supports (5) and the support plate (4) are used to form a vacuum pipe to accommodate the test train. Vacuum sensors (8) are provided inside the canopy (7) of the two test benches. The outer sides of the canopy (7) of the two test benches are connected to air extraction pipes (10). The air extraction pipes (10) are all connected to a vacuum pump (9). The upper surface of the support plate (4) is provided with two sections of track (17). The test train includes a car body (12) and a base frame (14). Multiple rubber connecting components (13) are provided between the car body (12) and the base frame (14). Multiple wheel axles (16) are installed on the base frame (14). The two ends of the wheel axles (16) are respectively provided with wheels (15) that roll on their respective tracks (17). The antimagnetic shell (3) is a hollow shell formed by multiple antimagnetic steel plates. The inner cavity of the antimagnetic shell (3) is provided with an induction aluminum plate (20), multiple upper linear motors (18) and multiple lower linear motors (19). The top of the upper linear motor (18) is connected to the top side of the inner cavity of the antimagnetic shell (3), and the bottom of the lower linear motor (19) is connected to the bottom side of the inner cavity of the antimagnetic shell (3). The induction aluminum plate (20) is located between the upper linear motor (18) and the lower linear motor (19). The thickness of the induction aluminum plate (20) is less than the distance between the bottom of the upper linear motor (18) and the top of the lower linear motor (19). A through groove is provided on the top surface of the antimagnetic housing (3) and the support plate (4). The length direction of the through groove is parallel to the length direction of the track (17). A transmission assembly is provided between the car body (12) and the sensing aluminum plate (20) through the through groove. The transmission assembly includes an aluminum plate connecting pin (21), a car body connecting pin (22), and a connecting sleeve (23). The aluminum plate connecting pin (21) is connected to the upper surface of the sensing aluminum plate (20), the car body connecting pin (22) is connected to the bottom surface of the car body (12), and the closed end of the connecting sleeve (23) is connected to one of the aluminum plate connecting pin (21) and the car body connecting pin (22), and the other of the aluminum plate connecting pin (21) and the car body connecting pin (22) extends into the open end of the connecting sleeve (23). An electrical control device (29) is provided on the bottom side of the base plate (2). Multiple upper linear motors (18) are connected in series and energized, and multiple lower linear motors (19) are connected in series and energized. The power lines of the upper linear motors (18) and the power lines of the lower linear motors (19) are connected in parallel. When the upper linear motors (18) and the lower linear motors (19) are energized, the sensing aluminum plate (20) can be suspended between the upper linear motors (18) and the lower linear motors (19) and move along the length of the through groove so that the sensing aluminum plate (20) can drive the car body (12) to move on the track (17) through the transmission assembly. The inner cavity of the antimagnetic housing (3) is also provided with multiple limiting devices (25). The limiting devices (25) are installed on both sides of the inner cavity of the antimagnetic housing (3). Multiple limiting devices (25) on the same side are distributed at intervals along the length direction of the sensing aluminum plate (20). The limiting devices (25) can block the side wall of the sensing aluminum plate (20) to limit the movement of the sensing aluminum plate (20) in the direction perpendicular to the track (17). When the upper linear motor (18) and the lower linear motor (19) are in the power-off state, the two sides of the sensing aluminum plate (20) can fall down respectively and be supported by multiple limiting devices (25) on each side. Two conductors (24) are connected to the middle of the aluminum plate connecting pin (21). Two cables are provided on the top side of the inner cavity of the antimagnetic housing (3). Both cables face the inside of the antimagnetic housing (3). Both cables are parallel to the through groove and are located on both sides of the through groove. When the sensing aluminum plate (20) is in a suspended state, the two conductors (24) can contact the two cables respectively, so that the two conductors (24) can supply power to the vehicle body (12).

2. The test apparatus for a vacuum tube ultra-high-speed train according to claim 1, characterized in that: Multiple upper linear motors (18) are divided into two rows in the inner cavity of the antimagnetic housing (3), with each row spaced apart along the length of the through slot. Multiple lower linear motors (19) are divided into two rows in the inner cavity of the antimagnetic housing (3), with the two rows of lower linear motors (19) located below the two rows of upper linear motors (18).

3. The test apparatus for a vacuum tube ultra-high-speed train according to claim 1, characterized in that: The limiting device (25) includes a limiting sleeve (26), a baffle (27) and a spring (28). One end of the limiting sleeve (26) and the spring (28) are connected to the inner cavity sidewall of the antimagnetic housing (3). The limiting sleeve (26) has a support surface on the side facing the sensing aluminum plate (20) that can support the edge of the sensing aluminum plate (20). The spring (28) is located inside the limiting sleeve (26). One side of the baffle (27) is connected to the spring (28), and the other side faces the sensing aluminum plate (20). The radial sidewall of the baffle (27) slides against the inner wall of the limiting sleeve (26), so that the baffle (27) can be pushed by the sensing aluminum plate (20) and move in the horizontal direction. The elastic force of the spring (28) can limit the movement distance of the baffle (27) and reset the baffle (27).

4. The test apparatus for a vacuum tube ultra-high-speed train according to claim 1, characterized in that: Two test benches are set up side by side and share the same base plate (2). A partition wall (11) is provided between the two test benches.

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