Gap adjustment system for maglev trains

Abstract

The present application discloses a gap adjustment system for a maglev train, the gap adjustment system comprising a memory gasket and an adjustment device, the memory gasket being arranged at a supporting point of a suspension magnet, the adjustment device changing the thickness of the memory gasket by adjusting the temperature of the memory gasket, thereby adjusting the gap between the suspension magnet and the long stator. The gap adjustment system can replace manual adjustment of the gap between the suspension magnet and the long stator, and can also replace manual lifting of the suspension magnet and disassembly and assembly of threaded fasteners, with a high degree of automation, making the adjustment operation easy and time-saving, and with high adjustment accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of maglev trains, and in particular to a gap adjustment system for maglev trains. Background Art

[0002] In high-speed maglev trains, in order to ensure the stability of suspension, it is necessary to ensure that the gap between each suspension magnet and the lower surface of the long stator is consistent. However, due to factors such as installation errors of the suspension magnets and long-term mechanical vibrations, the gap between the suspension magnets and the long stator may be inconsistent. Once this happens, the gap between the suspension magnets and the long stator needs to be adjusted to make it consistent.

[0003] Currently, the gap between the suspension magnet and the long stator is adjusted manually, which is time-consuming and labor-intensive, and the adjustment accuracy cannot be guaranteed.

[0004] Therefore, how to adjust the gap between the suspension magnet and the long stator more easily and save time and improve the adjustment accuracy is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a gap adjustment system for a maglev train, wherein the gap adjustment system includes a memory gasket and an adjustment device, wherein the memory gasket is arranged at the supporting point of the levitation magnet, and the adjustment device changes the thickness of the memory gasket by adjusting the temperature of the memory gasket, thereby adjusting the gap between the levitation magnet and the long stator.

[0006] In one embodiment, the regulating device is in contact with the memory gasket or is disposed near the memory gasket, and the regulating device regulates the temperature of the memory gasket by changing its own current value.

[0007] In one embodiment, the gap adjustment system includes a transmitting device, and the transmitting device is used to transmit high-frequency current to the adjusting device.

[0008] In one embodiment, the regulating device includes an eddy current induction coil, and the transmitting device includes a high-frequency current transmitting coil. The high-frequency current transmitting coil and the eddy current induction coil transmit high-frequency current through mutual induction.

[0009] In one embodiment, the gap adjustment system further includes a mobile tooling, and the launching device is installed on the mobile tooling, so that the launching device is driven to move longitudinally along the train by the mobile tooling.

[0010] In one embodiment, the gap adjustment system also includes a control device, which is communicatively connected to a gap sensor on the train to obtain a current gap between the suspension magnet and the long stator. The control device pre-stores a target gap between the suspension magnet and the long stator. The control device is communicatively connected to the launching device and the mobile tooling to generate control instructions for the launching device and the mobile tooling by comparing the current gap with the target gap.

[0011] In one embodiment, a disassembly and assembly device is also installed on the mobile tooling, and the disassembly and assembly device includes a sleeve adapted to the threaded fastener at the supporting point of the suspension magnet, and the sleeve can rotate relative to the mobile tooling to loosen or tighten the threaded fastener.

[0012] In one embodiment, a lifting device is also installed on the mobile tooling, and the lifting device is provided with a lifting arm. The lifting arm can be vertically raised and lowered relative to the mobile tooling to lift the suspended magnet.

[0013] In one embodiment, the control device is communicatively connected with the disassembling device and the lifting device to generate control instructions for the disassembling device and the lifting device by comparing the current gap with the target gap.

[0014] In one embodiment, a storage battery is also installed on the mobile tooling, and the storage battery is electrically connected to the mobile tooling and the electrical devices on the mobile tooling to supply power to the mobile tooling and the electrical devices on the mobile tooling.

[0015] The gap adjustment system provided in the embodiment of the present application can replace manual adjustment of the gap between the suspension magnet and the long stator, and can also replace manual lifting of the suspension magnet and disassembly and assembly of threaded fasteners during the adjustment process. It has a high degree of automation, making the adjustment operation easy and time-saving, and has high adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a memory gasket and an adjustment device of a gap adjustment system provided in the present application being arranged on a train;

[0017] Figure 2 It is a schematic diagram of a mobile tooling and various devices arranged on the mobile tooling.

[0018] The following are the descriptions of the reference numerals:

[0019] 01 long stator, 01a lower surface;

[0020] 1 memory gasket, 2 adjusting device, 3 launching device, 4 moving tooling, 5 disassembly and assembly device, 5a sleeve, 6 lifting device, 7 battery. DETAILED DESCRIPTION

[0021] In the past, the gap between the suspension magnet and the long stator 01 was adjusted manually, which was time-consuming and labor-intensive, and the adjustment accuracy could not be guaranteed.

[0022] To this end, the present application provides a gap adjustment system for a maglev train, which can easily and time-savingly adjust the gap between the levitation magnet and the long stator 01 with high adjustment accuracy.

[0023] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 As shown, long stators 01 are fixed on both sides of the track. Multiple sections of suspension magnets are fixed to the support arms on both sides of the train, and the sections of suspension magnets on the same side are arranged in sequence along the longitudinal direction of the train, i.e., the length direction. There is a certain gap between the suspension magnet and the lower surface 01a of the long stator 01, and a gap sensor for detecting the size of the gap is provided on the train. Two or more supporting points are formed between the suspension magnet and the support arm of the train, and threaded fasteners are used to fasten each section of the suspension magnet at its supporting point to fix it relative to the support arm.

[0025] The gap adjustment system of the maglev train provided in the present application includes a memory gasket 1. The memory gasket 1 is arranged at the supporting point of the levitation magnet, and each supporting point of each levitation magnet is provided with a memory gasket 1. The material of the memory gasket 1 is a material with shape memory function such as a shape memory alloy or a shape memory polymer. Affected by the characteristics of the shape memory material, the thickness of the memory gasket 1 changes when the temperature changes.

[0026] The gap adjustment system of the maglev train provided in the present application also includes an adjustment device 2. The adjustment device 2 changes the thickness of the memory gasket 1 by adjusting the temperature of the memory gasket 1. When the thickness of the memory gasket 1 increases, the gap between the suspension magnet and the lower surface 01a of the long stator 01 decreases; when the thickness of the memory gasket 1 decreases, the gap between the suspension magnet and the lower surface 01a of the long stator 01 increases.

[0027] The above-mentioned gap adjustment system can change the gap between the suspension magnet and the long stator 01 by adjusting the temperature of the memory gasket 1 using the adjustment device 2. The gap adjustment amount between the suspension magnet and the long stator 01 can be accurately controlled by accurately controlling the temperature of the memory gasket 1. Compared with manual adjustment, it is easier, more time-saving and has higher adjustment accuracy.

[0028] Specifically, the adjustment device 2 can be in contact with the memory pad 1 or be arranged near the memory pad 1, and the adjustment device 2 can adjust the temperature of the memory pad 1 by changing its own current value. When the current value of the adjustment device 2 changes, Joule heat of different magnitudes will be generated. Since the adjustment device 2 is in contact with the memory pad 1 or is arranged near the memory pad 1, the Joule heat can be transferred to the memory pad 1, thereby changing the temperature of the memory pad 1.

[0029] Furthermore, the gap adjustment system may also include a transmitter 3, which is used to transmit high-frequency current to the adjustment device 2. The high-frequency current transmission between the transmitter 3 and the adjustment device 2 may be wired transmission or wireless transmission based on the principle of electromagnetic induction. When wireless transmission is adopted, the position of the transmitter 3 can be flexibly adjusted according to the different positions of the adjustment device 2, making the adjustment operation more flexible and convenient.

[0030] In the illustrated embodiment, the transmitting device 3 and the adjusting device 2 adopt wireless transmission. Specifically, the transmitting device 3 includes a high-frequency current transmitting coil, and the adjusting device 2 includes an eddy current induction coil. The high-frequency current transmitting coil and the eddy current induction coil realize the transmission of high-frequency current through mutual induction.

[0031] Furthermore, the gap adjustment system can also include a mobile tooling 4, and the launching device 3 can be installed on the mobile tooling 4. The mobile tooling 4 can be used to drive the launching device 3 to move along the length direction of the train, so that the launching device 3 is moved to the vicinity of the position where the gap adjustment is required, so that the launching device 3 can efficiently and accurately transmit the high-frequency current to the adjustment device 2 corresponding to the memory gasket 1 of the required thickness adjustment.

[0032] Of course, the mobile tooling 4 may not be provided, and the launching device 3 may be moved along the length direction of the train manually. However, in comparison, using the movement of the mobile tooling 4 instead of manual movement can make the adjustment operation easier and save time.

[0033] Furthermore, the gap adjustment system may also include a control device (not shown in the figure), which is connected to the gap sensor on the train to obtain the current gap between the suspension magnet and the long stator 01. The control device pre-stores the target gap between the suspension magnet and the long stator 01. The control device is connected to the mobile tooling 4 and the launch device 3, and the control device compares the current gap with the target gap, and generates control instructions for the mobile tooling 4 and the launch device 3 according to the comparison result.

[0034] When the comparison result shows that the current gap is equal to the target gap, it indicates that the gap between the suspension magnet and the long stator 01 at this position does not need to be adjusted; when the comparison result shows that the current gap is greater than or less than the target gap, it indicates that the gap between the suspension magnet and the long stator 01 at this position needs to be adjusted, and the mobile tooling 4 is controlled to bring the launching device 3 to the vicinity of the position, and the launching device 3 is controlled to launch a high-frequency current of appropriate size to the adjusting device 2 at this position.

[0035] Furthermore, the movable tool 4 may be equipped with a disassembly device 5. The disassembly device 5 includes a sleeve 5a adapted to the threaded fastener at the supporting point of the suspension magnet, and the sleeve 5a can rotate relative to the movable tool 4 to loosen or tighten the threaded fastener.

[0036] Specifically, the assembly and disassembly device 5 may also be connected to the control device for communication, and the control device may generate a control instruction for the assembly and disassembly device 5 according to the comparison result between the current gap and the target gap.

[0037] Specifically, when the mobile tooling 4 moves to the position where the gap is to be adjusted, the control device controls the sleeve 5a of the disassembly and assembly device 5 to loosen the threaded fasteners at the target position to reserve space for the thickness change of the memory gasket 1. When the target gap is adjusted, the control device controls the sleeve 5a of the disassembly and assembly device 5 to tighten the threaded fasteners at the target position.

[0038] By providing the disassembly and assembly device 5 and communicating with the control device of the disassembly and assembly device 5, the automation level of the gap adjustment system can be further improved, and the manual labor intensity during the adjustment operation can be further reduced.

[0039] Furthermore, the movable tooling 4 may be installed with a lifting device 6 , which is provided with a lifting arm, which can be vertically raised and lowered relative to the movable tooling 4 to lift the suspended magnet, thereby preventing the deadweight of the suspended magnet from affecting the thickness change of the memory gasket 1 .

[0040] Specifically, the lifting device 6 may also be connected to the above-mentioned control device for communication, and the control device generates a control instruction for the lifting device 6 according to the comparison result between the current gap and the target gap.

[0041] Furthermore, the mobile tooling 4 may be equipped with a storage battery 7. The storage battery 7 is electrically connected to the mobile tooling 4 and the electrical devices on the mobile tooling 4 to supply power to the mobile tooling 4 and the electrical devices on the mobile tooling 4.

[0042] In summary, the gap adjustment system provided in the present application can replace manual adjustment of the gap between the suspension magnet and the long stator 01, and can also replace manual lifting of the suspension magnet and disassembly and assembly of threaded fasteners. It has a high degree of automation, making the adjustment operation easy and time-saving, and has high adjustment accuracy.

[0043] The above specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A gap adjustment system for a maglev train, characterized in that: The gap adjustment system comprises a memory gasket (1), an adjustment device (2), a launching device (3), a moving tool (4), a control device, a disassembly and assembly device (5) and a lifting device (6); The memory gasket (1) is arranged at the supporting point of the suspension magnet; The regulating device (2) is in contact with the memory gasket (1) or is arranged near the memory gasket (1). The regulating device (2) regulates the temperature of the memory gasket (1) by changing its own current value, thereby changing the thickness of the memory gasket (1), thereby adjusting the gap between the suspension magnet and the long stator (01); The transmitting device (3) is used to transmit high-frequency current to the regulating device (2), and the transmitting device (3) is installed on the mobile tooling (4) so ​​that the transmitting device (3) is driven by the mobile tooling (4) to move along the longitudinal direction of the train; The disassembly and assembly device (5) is installed on the mobile tooling (4), and the disassembly and assembly device (5) comprises a sleeve (5a) adapted to the threaded fastener at the supporting point of the suspension magnet, and the sleeve (5a) can rotate relative to the mobile tooling (4) to loosen or tighten the threaded fastener; The lifting device (6) is installed on the mobile tooling (4), and the lifting device (6) is provided with a lifting arm, and the lifting arm can be vertically raised and lowered relative to the mobile tooling (4) to lift the suspended magnet; The control device is connected in communication with a gap sensor on the train to obtain a current gap between the suspension magnet and the long stator (01); a target gap between the suspension magnet and the long stator (01) is pre-stored in the control device; the control device is connected in communication with the launch device (3), the mobile tooling (4), the disassembly and assembly device (5) and the lifting device (6) to generate control instructions for the launch device (3), the mobile tooling (4), the disassembly and assembly device (5) and the lifting device (6) by comparing the current gap with the target gap.

2. The gap adjustment system for a maglev train according to claim 1, characterized in that: The regulating device (2) comprises an eddy current induction coil, and the transmitting device (3) comprises a high-frequency current transmitting coil, wherein the high-frequency current transmitting coil and the eddy current induction coil transmit high-frequency current through mutual induction.

3. The gap adjustment system for a maglev train according to claim 1, characterized in that: The mobile tooling (4) is also equipped with a storage battery (7), and the storage battery (7) is electrically connected to the mobile tooling (4) and the electrical devices on the mobile tooling (4) to supply power to the mobile tooling (4) and the electrical devices on the mobile tooling (4).

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