Magnetic levitation train and its suspension frame

Abstract

This invention discloses a maglev train and its suspension frame. The suspension frame includes a first support arm, a second support arm, and two guide electromagnets arranged parallel between the first and second support arms. Each guide electromagnet has a fixed end connector and an elastic end connector at both ends. The fixed end connector is connected to the first support arm by connecting bolts, and the elastic end connector is connected to the second support arm by elastic tie rods. This allows the two guide electromagnets to transmit guiding force and longitudinal force while reducing the impact of longitudinal force. It also decouples the adjacent suspension frames from each other in the longitudinal direction by relative torsion. In this way, the guide electromagnets function as longitudinal beams, thus replacing longitudinal beams. As a result, the suspension frame does not need to be equipped with longitudinal beams, which greatly increases the available space for equipment under the vehicle and effectively reduces the installation difficulty of equipment under the vehicle.

Description

Technical Field

[0001] This invention relates to the field of suspended rail transportation technology, and in particular to a maglev train and its suspension frame. Background Technology

[0002] The suspension frame of existing maglev trains typically includes two crossbeams, longitudinal beams, support arms, and levitation electromagnets. The two crossbeams are symmetrically positioned at both ends of the longitudinal beams, and each crossbeam has support arms at both ends. The two ends of the levitation electromagnets are connected to the inner sides of the two adjacent support arms, and they can only transmit guiding forces to achieve levitation and guidance of the carriage. The longitudinal beams are generally located in the middle of the suspension frame and are mainly used to transmit longitudinal forces. However, the longitudinal beams occupy space under the train, increasing the difficulty of installing under-train equipment. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a maglev train and its suspension frame, wherein the two ends of the guide electromagnet are connected to two support arms through a fixed end connector and an elastic end connector, respectively, so that the guide electromagnet can replace the function of the longitudinal beam, the available space of the undercarriage equipment is increased, and the installation difficulty of the undercarriage equipment is reduced.

[0004] The suspension frame of the maglev train provided by the present invention includes a first support arm, a second support arm, and two guide electromagnets arranged parallel between the first support arm and the second support arm. Each guide electromagnet has a fixed end connecting seat and an elastic end connecting seat at both ends. The fixed end connecting seat is connected to the first support arm by a connecting bolt, and the elastic end connecting seat is connected to the second support arm by an elastic pull rod.

[0005] Preferably, a shear-resistant component is provided between the fixed end connector and the first support arm to prevent the connecting bolts from being sheared.

[0006] Preferably, the shear-resistant component includes:

[0007] The inner baffle is fixedly connected to the first support arm;

[0008] An outer baffle that is fixedly connected to the fixed end connector;

[0009] A positioning block embedded in the positioning groove provided in the fixed end connector;

[0010] An elastic pad abutting between the positioning block and the outer baffle;

[0011] A limiting pin is inserted longitudinally between the inner baffle and the positioning block to limit the relative movement of the fixed end connecting seat with respect to the first support arm in the lateral or vertical direction.

[0012] Preferably, the shear-resistant component further includes:

[0013] An adjusting pad is placed between the positioning block and the positioning groove and is used to adjust the position of the positioning block relative to the positioning groove.

[0014] Two clamping pads are respectively located on opposite sides of the adjusting pad and are used to clamp the adjusting pad in the lateral direction.

[0015] Preferably, the adjusting pad includes:

[0016] Two vertical adjustment pads are respectively located on the upper and lower sides of the positioning block and are used to adjust the position of the positioning block vertically.

[0017] Two horizontal adjustment pads are respectively placed on the left and right sides of the positioning block and are used to adjust the position of the positioning block in the horizontal direction.

[0018] Preferably, the elastic tie rod is provided with two node seats, and the elastic end connecting seat and the second support arm are respectively connected to the two node seats by fixing bolts. The fixing bolts are fitted with shear sleeves that abut against the elastic end connecting seat or the second support arm.

[0019] Preferably, each guide electromagnet includes an upper back box and a lower back box arranged opposite each other, and both ends of the upper back box and the lower back box are provided with reinforcing plates.

[0020] Preferably, each guide electromagnet further includes several sets of magnetic poles and a magnetic yoke located on two opposite sides of each set of magnetic poles. Each set of magnetic poles is linearly distributed, and the magnetic poles are bolted to the magnetic yoke.

[0021] Preferably, the end of the magnetic yoke near the elastic end connector is integrally provided with a snap-fit ​​groove, which cooperates with the snap-fit ​​block provided on the transverse tie rod, and a positioning pin is provided between the snap-fit ​​groove and the snap-fit ​​block.

[0022] The maglev train provided by the present invention includes the suspension frame described in any of the above claims.

[0023] Compared to the prior art, the maglev train suspension frame provided by this invention includes a first support arm, a second support arm, and two guide electromagnets, which are arranged parallel to each other between the first and second support arms. Each guide electromagnet has a fixed end connector and an elastic end connector at both ends. The fixed end connector is connected to the first support arm by connecting bolts, and the elastic end connector is connected to the second support arm by an elastic tie rod. This allows the two guide electromagnets to transmit guiding force and longitudinal force while reducing the impact of the longitudinal force, thus decoupling the adjacent suspension frames from relative torsion along the longitudinal direction. In this way, the guide electromagnets function as longitudinal beams, replacing them. Therefore, the suspension frame does not need to be equipped with longitudinal beams, greatly increasing the usable space for under-vehicle equipment and effectively reducing the installation difficulty of under-vehicle equipment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a structural diagram of the suspension frame of a maglev train provided in a specific embodiment of the present invention;

[0026] Figure 2 for Figure 1 A structural diagram showing the connection between the first support arm and the fixed end connecting seat;

[0027] Figure 3 for Figure 1 A structural diagram showing the connection between the second support arm and the elastic end connecting seat;

[0028] Figure 4 for Figure 1 A cross-sectional view of the assembly of the first support arm, the fixed end connector, and the shear-resistant component;

[0029] Figure 5 for Figure 1 Structural diagram of the shear-resistant component;

[0030] Figure 6 for Figure 5 Exploded view;

[0031] Figure 7 for Figure 1 A cross-sectional view of the assembly of the second support arm, the elastic end connecting seat, and the fixing bolts;

[0032] Figure 8 for Figure 1 Structural diagram of a center-guiding electromagnet;

[0033] Figure 9 for Figure 8 Another view;

[0034] Figure 10 for Figure 1 A structural diagram showing the connection between the central guide electromagnet and the transverse tie rod;

[0035] Figure 11 for Figure 10 A magnified view of part A in the image.

[0036] The attached figures are labeled as follows:

[0037] 11-First support arm, 12-Second support arm, 13-Guide electromagnet, 14-Fixed end connector, 15-Elastic end connector, 16-Connecting bolt, 17-Elastic tie rod, 18-Shear-resistant assembly, 19-Fixed bolt, 20-Shear-resistant sleeve, 21-Transverse tie rod and 22-Positioning pin;

[0038] 131-Upper back box, 132-Lower back box, 133-Reinforcing plate, 134-Magnetic pole and 135-Magnetic yoke;

[0039] 1351-Card slot;

[0040] 171-Node Seat;

[0041] 181-Inner baffle, 182-Outer baffle, 183-Positioning block, 184-Elastic pad, 185-Limiting pin, 186-Adjusting pad, and 187-Clamping pad;

[0042] 1811 - Fixing plate and 1812 - Fixing block;

[0043] 1861 - Vertical adjusting shim and 1862 - Lateral adjusting shim;

[0044] 211-Card Connector Block. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Please refer to Figures 1 to 3 , Figure 1 This is a structural diagram of the suspension frame of a maglev train provided in a specific embodiment of the present invention; Figure 2 for Figure 1 A structural diagram showing the connection between the first support arm and the fixed end connecting seat; Figure 3 for Figure 1 A structural diagram showing the connection between the second support arm and the elastic end connecting seat.

[0048] First, it should be noted that in the text, "longitudinal" refers to the length direction of the suspension frame, "lateral" refers to the width direction of the suspension frame, and "vertical" refers to the height direction of the suspension frame.

[0049] This invention discloses a suspension frame for a maglev train. The suspension frame includes a first support arm 11, a second support arm 12, and two guide electromagnets 13. The first support arm 11 and the second support arm 12 are respectively mounted on two parallel crossbeams, and the inner sides of both the first support arm 11 and the second support arm 12 are connected to the guide electromagnets 13. The structure and connection relationship of the first support arm 11 and the second support arm 12 can be referred to in the prior art. The two guide electromagnets 13 are arranged parallel between the first support arm 11 and the second support arm 12, and the structure and installation method of the two guide electromagnets 13 are the same.

[0050] Each guide electromagnet 13 is equipped with a fixed end connector 14 and a flexible end connector 15 at both ends. The fixed end connector 14 is connected to the first support arm 11 by connecting bolts 16. The fixed end connector 14 includes an integrally connected connecting plate and a connecting sleeve. The connecting plate is connected to the first support arm 11 by connecting bolts 16, and the connecting sleeve is inserted into the fixed end of the guide electromagnet 13 and riveted to the fixed end of the guide electromagnet 13. The flexible end connector 15 is connected to the second support arm 12 by an elastic pull rod 17. The elastic pull rod 17 is made of elastic material and can extend and retract along the longitudinal direction of the suspension frame, which can reduce the impact of longitudinal forces.

[0051] In summary, by optimizing the structure of the suspension frame, the present invention enables the two guide electromagnets 13 to transmit both guiding force and longitudinal force, reduce the impact of longitudinal force, and decouple the adjacent suspension frames from each other in a longitudinal direction. Thus, the guide electromagnets 13 function as longitudinal beams, thereby replacing longitudinal beams. As a result, the suspension frame does not need to be equipped with longitudinal beams, which greatly increases the available space for under-vehicle equipment and effectively reduces the installation difficulty of under-vehicle equipment.

[0052] In addition, eliminating the longitudinal beams can effectively reduce the number of components in the suspension frame, thereby reducing the weight of the suspension frame, which is conducive to achieving lightweighting and reducing manufacturing costs.

[0053] Please refer to Figures 4 to 6 , Figure 4 for Figure 1 A cross-sectional view of the assembly of the first support arm, the fixed end connector, and the shear-resistant component; Figure 5 for Figure 1 Structural diagram of the shear-resistant component; Figure 6 for Figure 5 Exploded view.

[0054] A shear-resistant component 18 is provided between the fixed end connector 14 and the first support arm 11 to restrict the relative movement of the fixed end connector 14 with respect to the first support arm 11 in the lateral and vertical directions. This is used to prevent the connecting bolt 16 from being sheared, reduce the risk of the connecting bolt 16 breaking, and effectively improve reliability.

[0055] The shear-resistant component 18 includes an inner baffle 181, an outer baffle 182, a positioning block 183, an elastic pad 184, and a limiting pin 185. The inner baffle 181 is fixedly connected to the first support arm 11. The inner baffle 181 includes an integrally connected fixing plate 1811 and a fixing block 1812. The first support arm 11 is correspondingly provided with a fixing groove, and the fixing block 1812 is in a concave-convex fit with the fixing groove. The fixing plate 1811 is fixed to the first support arm 11 by bolts. The outer baffle 182 is fixed to the fixing end connecting seat 14 by bolts. The fixing end connecting seat 14 is provided with a positioning groove on the side near the inner baffle 181. The positioning block 183 is embedded in the positioning groove to limit the installation position of the limiting pin 185. The elastic pad 184 abuts against the positioning block 183 and the outer baffle 182 to absorb the vibration and impact between the limiting pin 185 and the fixing end connecting seat 14 in the longitudinal direction. The elastic pad 184 can be a rubber pad, but is not limited to this. The limiting pin 185 is a stepped shaft, thicker in the middle and thinner at both ends. The limiting pin 185 is inserted longitudinally between the inner baffle 181 and the positioning block 183. The limiting pin 185 and the inner baffle 181 and the limiting pin 185 and the positioning block 183 are both fitted with a hole and a shaft, which is used to limit the relative movement of the fixed end connecting seat 14 relative to the first support arm 11 in the lateral or vertical direction.

[0056] The shear-resistant assembly 18 also includes an adjusting shim 186 and two clamping shims 187. The adjusting shim 186 is located between the positioning block 183 and the positioning groove, and is used to adjust the position of the positioning block 183 relative to the positioning groove, thereby adjusting the installation state of the limit pin 185. The two clamping shims 187 are respectively located on two opposite sides of the adjusting shim 186, and are used to clamp the adjusting shim 186 laterally.

[0057] The adjusting shims 186 include two vertical adjusting shims 1861 and two horizontal adjusting shims 1862. The two vertical adjusting shims 1861 are respectively located on the upper and lower sides of the positioning block 183, and are used to adjust the position of the positioning block 183 vertically. The two horizontal adjusting shims 1862 are respectively located on the left and right sides of the positioning block 183, and are used to adjust the position of the positioning block 183 horizontally. Of course, the structure of the shear-resistant component 18 and the adjusting shims 186 is not limited to this.

[0058] Please refer to Figure 7 , Figure 7 for Figure 1 A cross-sectional view of the assembly of the second support arm, the elastic end connecting seat, and the fixing bolts.

[0059] Each end of the elastic tie rod 17 is provided with a node seat 171. Each node seat 171 is inserted into the through hole at the end of the elastic tie rod 17. Each end of each node seat 171 is equipped with a fixing bolt 19. One node seat 171 is fixedly connected to the elastic end connecting seat 15 by two fixing bolts 19, and the other node seat 171 is fixedly connected to the second support arm 12 by two fixing bolts 19, thereby fixing the elastic tie rod 17 between the elastic end connecting seat 15 and the second support arm 12.

[0060] Both the elastic end connector 15 and the second support arm 12 have mounting grooves on their opposite surfaces. The fixing bolt 19 is installed in the mounting groove and is threaded into the mounting groove. The mounting groove has a stepped groove at the opening. The fixing bolt 19 is fitted with a shear sleeve 20, which is inserted into the stepped groove so that the outer surface of the shear sleeve 20 abuts against the elastic end connector 15 or the second support arm 12 respectively, preventing the fixing bolt 19 from being sheared, which helps to further improve reliability.

[0061] Please refer to Figure 8 and Figure 9 , Figure 8 for Figure 1 Structural diagram of a center-guiding electromagnet; Figure 9 for Figure 8 Another view.

[0062] Each guide electromagnet 13 includes an upper back box 131 and a lower back box 132 arranged opposite to each other. Reinforcing plates 133 are provided at both ends of both the upper back box 131 and the lower back box 132, effectively improving the strength and stiffness of the guide electromagnet 13 under alternating longitudinal and guiding loads. The guide electromagnet 13 has a total of four reinforcing plates 133, which are riveted in pairs to both ends of the upper back box 131 and the lower back box 132.

[0063] Each guide electromagnet 13 also includes several sets of magnetic poles 134 and magnetic yokes 135. Each set of magnetic poles 134 has a magnetic yoke 135 on both opposite sides. Each set of magnetic poles 134 is linearly distributed, and the number of magnetic poles 134 can be rationally configured according to the guiding force requirements of the maglev train. The magnetic poles 134 and magnetic yokes 135 are bolted together, which facilitates the disassembly and assembly of the magnetic poles 134 and allows for flexible adjustment of the position of the magnetic poles 134.

[0064] Please refer to Figure 10 and Figure 11 , Figure 10 for Figure 1 A structural diagram showing the connection between the central guide electromagnet and the transverse tie rod; Figure 11 for Figure 10 A magnified view of part A in the image.

[0065] The magnetic yoke 135 has an integrally formed snap-fit ​​groove 1351 at one end near the elastic end connecting seat 15. The transverse pull rod 21 is located on the snap-fit ​​block 211. The snap-fit ​​groove 1351 and the snap-fit ​​block 211 are in a concave-convex fit, and a positioning pin 22 passes through the snap-fit ​​groove 1351 and the snap-fit ​​block 211. This allows the guide electromagnet 13 to be positioned laterally relative to the second support arm 12, and also facilitates the disassembly and assembly of the guide electromagnet 13. The positioning pin 22 can be a flexible cylindrical pin, but is not limited to this. Specifically, the magnetic yokes 135 on both the upper and lower sides of the guide electromagnet 13 are provided with snap-fit ​​grooves 1351, which can be connected to the upper and lower ends of the transverse pull rod 21.

[0066] The present invention also discloses a maglev train, including the above-mentioned suspension frame, which has the same beneficial effects.

[0067] The maglev train and its suspension frame provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A suspension frame for a maglev train, characterized in that, It includes a first support arm (11), a second support arm (12) and two guide electromagnets (13) arranged in parallel between the first support arm (11) and the second support arm (12). Each guide electromagnet (13) is equipped with a fixed end connecting seat (14) and an elastic end connecting seat (15) at both ends. The fixed end connecting seat (14) is connected to the first support arm (11) by a connecting bolt (16), and the elastic end connecting seat (15) is connected to the second support arm (12) by an elastic pull rod (17). A shear-resistant component (18) is provided between the fixed end connecting seat (14) and the first support arm (11) to prevent the connecting bolt (16) from being sheared. The shear-resistant component (18) includes: An inner baffle (181) is fixedly connected to the first support arm (11). An outer baffle (182) is fixedly connected to the fixed end connecting seat (14); Positioning block (183) embedded in the positioning groove provided in the fixed end connector (14). An elastic pad (184) abuts against the positioning block (183) and the outer baffle (182). A limiting pin (185) is inserted longitudinally between the inner baffle (181) and the positioning block (183) to limit the relative movement of the fixed end connecting seat (14) with respect to the first support arm (11) in the lateral or vertical direction.

2. The suspension frame of the maglev train according to claim 1, characterized in that, The shear-resistant component (18) further includes: An adjusting pad (186) is provided between the positioning block (183) and the positioning groove and is used to adjust the position of the positioning block (183) relative to the positioning groove. Two clamping pads (187) are respectively located on two opposite sides of the adjusting pad (186) and are used to clamp the adjusting pad (186) laterally.

3. The suspension frame of the maglev train according to claim 2, characterized in that, The adjusting pad (186) includes: Two vertical adjustment pads (1861) are respectively located on the upper and lower sides of the positioning block (183) and are used to adjust the position of the positioning block (183) in the vertical direction. Two lateral adjustment pads (1862) are respectively located on the left and right sides of the positioning block (183) and are used to adjust the position of the positioning block (183) in the lateral direction.

4. The suspension frame of the maglev train according to any one of claims 1 to 3, characterized in that, The elastic tie rod (17) is provided with two node seats (171). The elastic end connecting seat (15) and the second support arm (12) are respectively connected to the two node seats (171) by fixing bolts (19). The fixing bolts (19) are fitted with shear sleeves (20) that abut against the elastic end connecting seat (15) or the second support arm (12).

5. The suspension frame of the maglev train according to any one of claims 1 to 3, characterized in that, Each of the guide electromagnets (13) includes an upper back box (131) and a lower back box (132) arranged opposite to each other, and both ends of the upper back box (131) and the lower back box (132) are provided with reinforcing plates (133).

6. The suspension frame of the maglev train according to any one of claims 1 to 3, characterized in that, Each of the guide electromagnets (13) further includes several sets of magnetic poles (134) and magnetic yokes (135) disposed on two opposite sides of each set of magnetic poles (134). Each set of magnetic poles (134) is linearly distributed, and the magnetic poles (134) are bolted to the magnetic yokes (135).

7. The suspension frame of the maglev train according to claim 6, characterized in that, The magnetic yoke (135) is integrally provided with a snap-fit ​​groove (1351) at one end near the elastic end connector (15). The snap-fit ​​groove (1351) cooperates with the snap-fit ​​block (211) provided on the transverse tie rod (21). A positioning pin (22) passes through the snap-fit ​​groove (1351) and the snap-fit ​​block (211).

8. A maglev train, characterized in that, Includes the suspension frame as described in any one of claims 1 to 7.

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