A rescue support device for a maglev train and a maglev train

Abstract

The present invention discloses a rescue support device for a maglev train and a maglev train. The support device includes a magnetic conductive box body, a second hydraulic cylinder, and two or more first hydraulic cylinders. The first hydraulic cylinders are arranged on one side of the second hydraulic cylinder. The magnetic conductive box body is a box body structure extending longitudinally. The bottom of the magnetic conductive box body is provided with rollers. A rotating shaft is arranged in the magnetic conductive box body along the length direction. The rotating shaft is connected to a rotating shaft driving device. First permanent magnets and second permanent magnets are symmetrically arranged on opposite sides of the rotating shaft. The first hydraulic cylinder includes a first cylinder body, a first piston rod, and a first end cover. The first end cover is arranged at the bottom of the first cylinder body. The second hydraulic cylinder includes a second cylinder body, a second piston rod, and a second end cover. The second end cover is arranged at the bottom of the second cylinder body. The rodless chambers are all communicated with the rod chambers through hollow connecting rods. For the rescue support device for a maglev train of the present invention, during the rescue process, in the case of no continuous energy supply, the support device can still maintain normal operation, ensuring the normal rescue of the vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of maglev vehicles, and particularly relates to a rescue support device for a maglev train and a maglev train. Background Art

[0002] Currently, when a maglev vehicle fails to levitate, a set of hydraulic support devices are required to lift the vehicle for rescue. This set of devices needs to arrange pressurizing equipment, multiple support cylinders and connect the two through pipelines throughout the vehicle. Once problems such as vehicle power failure, pipeline leakage, and pressurizing equipment failure occur, the support device will not be able to work properly, affecting the operation of the line.

[0003] Chinese Patent Invention Authorization Publication No. CN104442772B discloses a train hydraulic braking system, which includes: an electronic control unit that issues a braking command, a hydraulic control unit that receives the braking command and generates hydraulic braking force, a braking execution unit that converts the hydraulic braking force into mechanical braking force, and an oil supply unit that supplies oil to the hydraulic control unit. The electronic control unit sends the required braking force to the hydraulic control unit through a braking command. After receiving the braking command, the hydraulic control unit generates hydraulic braking force and transmits it to the braking execution unit. The braking execution unit is converted into mechanical braking force by the hydraulic braking force to achieve the mechanical braking of the maglev train. However, the hydraulic braking system of this invention requires continuous power supply during the braking process. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a rescue support device for a maglev train and a maglev train. In the case of no continuous energy supply during the rescue process of the maglev train, the support device can still work normally to ensure the normal rescue of the vehicle.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A rescue support device for a maglev train, the structural features of which are as follows: it includes a magnetic conduction box body, a second hydraulic cylinder, and two or more first hydraulic cylinders, and the first hydraulic cylinders are arranged on one side of the second hydraulic cylinder; the magnetic conduction box body is a box body structure extending longitudinally, and rollers are provided at the bottom of the magnetic conduction box body. A rotating shaft is arranged along the length direction inside the magnetic conduction box body, and the rotating shaft is connected to a rotation driving device. First permanent magnets and second permanent magnets are symmetrically arranged on opposite sides of the rotating shaft. The polarities of the opposite sides of the first permanent magnets and the second permanent magnets along the width direction of the rotating shaft are opposite; the first hydraulic cylinder includes a first cylinder body, a first piston rod, and a first end cover, and the first end cover is arranged at the bottom of the first cylinder body; one end of the first piston rod is arranged inside the first cylinder body and forms a rodless cavity for containing hydraulic oil with the first cylinder body. The other end of the first piston rod penetrates through the first end cover and is fixedly connected to the top of the magnetic conduction box body; the second hydraulic cylinder includes a second cylinder body, a second piston rod, and a second end cover, and the second end cover is arranged at the bottom of the second cylinder body; one end of the second piston rod is arranged inside the second cylinder body and forms a rod cavity for containing hydraulic oil with the second cylinder body and the second end cover. The other end of the second piston rod penetrates through the second end cover and is fixedly connected to the top of the magnetic conduction box body, and the rodless cavities are all communicated with the rod cavity through a hollow connecting rod.

[0007] Before the support device is used, hydraulic oil is provided in both the rod chamber and the rodless chamber, and the rollers are arranged above the rail. When the support device needs to be used, the rotating shaft driving device is started, so that the rotating shaft rotates around the axis in its own length direction. When the axis in the width direction of the rotating shaft is perpendicular to the rail, the magnetic field generated by the first permanent magnet and the second permanent magnet forms a magnetic circuit with the rail, and the magnetic suction adsorbs the support device on the rail. The rollers will move downward to abut against the rail. At this time, the first permanent magnet and the second permanent magnet are in the working position. The magnetic conduction box drives the first piston rod and the second piston rod to move downward, compressing the hydraulic oil in the rod chamber, and making it fill into the rodless chamber through the hollow connecting rod. The hydraulic oil entering the rodless chamber pushes the first piston rod to move further downward, so that the first piston rod and the second piston rod extend outward relative to the first cylinder block and the second cylinder block respectively. When the support device does not need to be used, the rotating shaft driving device is started, so that the rotating shaft rotates around the axis in its own length direction. When the axis in the width direction of the rotating shaft is parallel to the rail, the magnetic field generated between the first permanent magnet and the second permanent magnet forms a magnetic circuit inside the magnetic conduction box, and the support device has no magnetic suction on the rail. At this time, the first permanent magnet and the second permanent magnet are in the normal position. The pressurized hydraulic oil in the rodless chamber flows back to the rod chamber through the hollow connecting rod. The hydraulic oil in the rod chamber increases, while the hydraulic oil in the rodless chamber decreases. The first piston rod and the second piston rod both move upward under the action of the hydraulic oil, so that the rollers are separated from the rail. For the rescue support device for the maglev train of the present invention, when the maglev train has no continuous energy supply during the rescue process, the support device can still work normally to ensure the normal rescue of the vehicle. The support device of the present invention has the advantages of simple structure, high reliability, environmental protection and energy saving.

[0008] Specifically, one end of the rotating shaft penetrates through the magnetic conduction box and is connected to the rotating shaft driving device, and the rotating shaft driving device is arranged on the outer side wall of the magnetic conduction box; a plurality of first permanent magnets and a plurality of second permanent magnets are arranged on the rotating shaft, and the first permanent magnets and the second permanent magnets are both uniformly arranged along the length direction of the rotating shaft, and partitions are arranged between adjacent first permanent magnets and adjacent second permanent magnets. The partitions are provided to prevent interference between the permanent magnets.

[0009] Preferably, the rotating shaft driving device is a motor.

[0010] Preferably, there are two first hydraulic cylinders, the second hydraulic cylinder is arranged between the two first hydraulic cylinders, and the second hydraulic cylinder and the two first hydraulic cylinders are arranged at intervals along the length direction of the magnetic conduction box.

[0011] Preferably, a plurality of rollers are arranged at the bottom of the magnetic conduction box, and the plurality of rollers are arranged at intervals along the length direction of the magnetic conduction box.

[0012] Based on the same inventive concept, the present invention also provides a maglev train. Along the length direction of the maglev train, the rescue support devices for the maglev train are provided on both sides of the suspension frame of the maglev train, and the tops of the first cylinder body and the second cylinder body are both connected to the suspension frame.

[0013] Preferably, the rotating shaft driving device is electrically connected to the control system of the maglev train. Through the control system of the maglev train, centralized adjustment and control of the rotating shaft driving device are carried out, so that the first permanent magnet and the second permanent magnet are in the working position or the normal position, and thus the rollers of the support device are in contact with the rail or retracted upward.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. For the rescue support device for the maglev train of the present invention, in the case of no continuous energy supply during the rescue process, the support device can still work normally to ensure the normal rescue of the vehicle.

[0016] 2. The rescue support device for the maglev train of the present invention has the advantages of simple structure, high reliability, environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a rescue support structure for a maglev train of the present invention;

[0018] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the first hydraulic cylinder in

[0019] Figure 3 is Figure 1 a schematic cross-sectional structure diagram of the second hydraulic cylinder in

[0020] Figure 4 is Figure 1 a schematic cross-sectional structure diagram of the magnetic conduction box body in

[0021] In the figure, 1 - first hydraulic cylinder; 11 - first cylinder body; 12 - first piston rod; 13 - first end cover; 2 - second hydraulic cylinder; 21 - second cylinder body; 22 - second piston rod; 23 - second end cover; 3 - magnetic conduction box body; 4 - rodless cavity; 5 - rod chamber; 6 - hollow connecting rod; 7 - roller; 8 - rotating shaft; 9 - first permanent magnet; 10 - second permanent magnet; 101 - rotating shaft driving device; 102 - partition board. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. For the convenience of description, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right directions of the accompanying drawings themselves, and do not limit the structure.

[0023] As Figure 1 shown, a rescue support device for a maglev train includes a magnetic conduction box body 3, a second hydraulic cylinder 2, and two first hydraulic cylinders 1. The magnetic conduction box body 3 is a box body structure extending longitudinally, and rollers 7 are provided at the bottom of the magnetic conduction box body 3. The second hydraulic cylinder 2 is arranged between the two first hydraulic cylinders 1, and the second hydraulic cylinder 2 and the two first hydraulic cylinders 1 are arranged at intervals along the length direction of the magnetic conduction box body 3 on the top of the magnetic conduction box body 3.

[0024] As Figure 4 shown, a rotating shaft 8 is provided in the magnetic conduction box body 3 along the length direction. One end of the rotating shaft 8 penetrates the magnetic conduction box body 3 and is connected to a rotating shaft driving device 101. The rotating shaft driving device 101 is arranged on the outer side wall of the magnetic conduction box body 3, and the rotating shaft driving device 101 is a motor. Five first permanent magnets 9 and five second permanent magnets 10 are symmetrically arranged on opposite sides of the rotating shaft 8. The polarities of the opposite sides of the first permanent magnets 9 and the second permanent magnets 10 along the width direction of the rotating shaft 8 are opposite. The five first permanent magnets 9 and the second permanent magnets 10 are all arranged uniformly along the length direction of the rotating shaft 8, and partition plates 102 are provided between adjacent first permanent magnets 9 and adjacent second permanent magnets 10.

[0025] As Figure 2 shown, the first hydraulic cylinder 1 includes a first cylinder body 11, a first piston rod 12, and a first end cover 13. The first end cover 13 is arranged at the bottom of the first cylinder body 11. One end of the first piston rod 12 is arranged in the first cylinder body 11 and forms a rodless cavity 4 for containing hydraulic oil with the first cylinder body 11. The other end of the first piston rod 12 penetrates the first end cover 13 and is fixedly connected to the top of the magnetic conduction box body 3. As Figure 3 shown, the second hydraulic cylinder 2 includes a second cylinder body 21, a second piston rod 22, and a second end cover 23. The second end cover 23 is arranged at the bottom of the second cylinder body 21. One end of the second piston rod 22 is arranged in the second cylinder body 21 and forms a rod cavity 5 for containing hydraulic oil with the second cylinder body 21 and the second end cover 23. The other end of the second piston rod 22 penetrates the second end cover 23 and is fixedly connected to the top of the magnetic conduction box body 3. The two rodless cavities 4 are both communicated with the rod cavity 5 through a hollow connecting rod 6.

[0026] A maglev train, along the length direction of the maglev train, the rescue support devices for the maglev train are provided on both sides of the suspension frame of the maglev train. The tops of the first cylinder block 11 and the second cylinder block 21 are both connected to the suspension frame, and the rotating shaft driving device 101 is electrically connected to the control system of the maglev train.

[0027] Before the support device is used, hydraulic oil is provided in both the rod chamber 5 and the rodless chamber 4. A steel rail is provided below the maglev train, and the roller 7 is arranged above the steel rail. When the maglev train needs to be rescued, the control system on the maglev train issues an instruction to lower the roller 7, and the rotating shaft driving device 101 drives the rotating shaft 8 to rotate around the axis in its own length direction. When the axis in the width direction of the rotating shaft 8 is perpendicular to the steel rail, the magnetic fields generated by the first permanent magnet 9 and the second permanent magnet 10 and the steel rail form a magnetic circuit, and the magnetic suction force adsorbs the support device onto the steel rail. The roller 7 will move downward to abut against the steel rail. At this time, the first permanent magnet 9 and the second permanent magnet 10 are in the working position. The permanent magnet in the permanent magnet guide box 3 rotates to the working position to generate an attractive force with the steel rail, and the roller 32 abuts against the steel rail. At the same time, the permanent magnet guide box 3 drives the first piston rod 12 and the second piston rod 22 to move downward, compressing the hydraulic oil in the rod chamber 5, and making it fill into the two rodless chambers 4 on both sides through the hollow connecting rod 6. The hydraulic oil entering the rodless chamber 4 pushes the first piston rod 12 to move further downward, so that the first piston rod 12 and the second piston rod 22 respectively extend outwards relative to the first cylinder block 11 and the second cylinder block 21, jack up the suspension frame, and then jack up the maglev train. When the maglev train needs to float normally, the control system on the maglev train issues an instruction to retract the roller 7, and the rotating shaft driving device 101 drives the rotating shaft 8 to rotate around the axis in its own length direction. When the axis in the width direction of the rotating shaft 8 is parallel to the steel rail, the magnetic field generated between the first permanent magnet 9 and the second permanent magnet 10 forms a magnetic circuit inside the magnetic guide box 3, and the support device has no magnetic suction force on the steel rail. At this time, the first permanent magnet and the second permanent magnet are in the normal position. The hydraulic oil in the rodless chamber 4 flows back to the rod chamber 5 through the hollow connecting rod 6. The hydraulic oil in the rod chamber 5 increases, while the hydraulic oil in the rodless chamber 4 decreases. The first piston rod 12 and the second piston rod 22 both move upward under the action of the hydraulic oil, so that the roller 7 moves upward above the steel rail to disengage from the steel rail. The rescue support device for the maglev train of the present invention can still maintain the normal operation of the support device and maintain the normal rescue of the vehicle without continuous energy supply during the rescue process. The rescue support device for the maglev train of the present invention has the advantages of simple structure, high reliability, environmental protection and energy saving.

[0028] The content clarified in the above embodiments should be understood that these embodiments are only used to illustrate the present invention more clearly, rather than to limit the scope of the present invention. After reading the present invention, various equivalent forms of modification of the present embodiment by those skilled in the art all fall within the scope defined by the appended claims of the present invention.

Claims

1. A rescue support device for a maglev train, characterized in that: it includes a magnetic conduction box body (3), a second hydraulic cylinder (2) and two or more first hydraulic cylinders (1), and the first hydraulic cylinders (1) are arranged on one side of the second hydraulic cylinder (2); the magnetic conduction box body (3) is a box body structure extending longitudinally, the bottom of the magnetic conduction box body (3) is provided with rollers (7), a rotating shaft (8) is arranged along the length direction inside the magnetic conduction box body (3), the rotating shaft (8) is connected to a rotating shaft driving device (101), first permanent magnets (9) and second permanent magnets (10) are symmetrically arranged on opposite sides of the rotating shaft (8), and the polarities of the opposite sides of the first permanent magnets (9) and the second permanent magnets (10) along the width direction of the rotating shaft (8) are opposite; the first hydraulic cylinder (1) includes a first cylinder body (11), a first piston rod (12) and a first end cover (13), and the first end cover (13) is arranged at the bottom of the first cylinder body (11); one end of the first piston rod (12) is arranged inside the first cylinder body (11) and forms a rodless cavity (4) for accommodating hydraulic oil with the first cylinder body (11), and the other end of the first piston rod (12) penetrates through the first end cover (13) and is fixedly connected to the top of the magnetic conduction box body (3); the second hydraulic cylinder (2) includes a second cylinder body (21), a second piston rod (22) and a second end cover (23), and the second end cover (23) is arranged at the bottom of the second cylinder body (21); one end of the second piston rod (22) is arranged inside the second cylinder body (21) and forms a rod cavity (5) for accommodating hydraulic oil with the second cylinder body (21) and the second end cover (23), and the other end of the second piston rod (22) penetrates through the second end cover (23) and is fixedly connected to the top of the magnetic conduction box body (3), and the rodless cavity (4) is communicated with the rod cavity (5) through a hollow connecting rod (6).

2. The rescue support device for a maglev train according to claim 1, characterized in that: one end of the rotating shaft (8) penetrates through the magnetic conduction box body (3) and is connected to the rotating shaft driving device (101), and the rotating shaft driving device (101) is arranged on the outer side wall of the magnetic conduction box body (3); a plurality of first permanent magnets (9) and a plurality of second permanent magnets (10) are arranged on the rotating shaft (8), the first permanent magnets (9) and the second permanent magnets (10) are uniformly arranged along the length direction of the rotating shaft (8), and partition plates (102) are arranged between adjacent first permanent magnets (9) and adjacent second permanent magnets (10).

3. The rescue support device for a maglev train according to claim 2, characterized in that: the rotating shaft driving device (101) is a motor.

4. The rescue support device for a maglev train according to claim 1, characterized in that: two second hydraulic cylinders (2) are provided, the second hydraulic cylinders (2) are arranged between the two first hydraulic cylinders (1), and the second hydraulic cylinders (2) and the two first hydraulic cylinders (1) are arranged at intervals along the length direction of the magnetic conduction box body (3).

5. The rescue support device for a maglev train according to claim 1, characterized in that: A plurality of rollers (7) are provided at the bottom of the magnetic conduction box body (3), and the plurality of rollers (7) are arranged at intervals along the length direction of the magnetic conduction box body (3).

6. A maglev train Characterized in that: Along the length direction of the maglev train, rescue support devices for maglev trains as described in any one of claims 1 to 5 are provided on both sides of the suspension frame of the maglev train, and the tops of the first cylinder body (11) and the second cylinder body (21) are both connected to the suspension frame.

7. The maglev train according to claim 6 Characterized in that: The rotating shaft driving device (101) is electrically connected to the control system of the maglev train.

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