A hinge device for maglev vehicles

Abstract

This utility model relates to the field of articulation device technology, aiming to solve the problem of excessive force in all directions in existing articulation devices for rail vehicles. It provides an articulation device for maglev vehicles, including two mounting seats, which are respectively installed at the ends of two adjacent carriages. A longitudinal tie rod connects the two mounting seats, arranged longitudinally. A transverse tie rod also connects the two mounting seats, arranged transversely. The longitudinal and transverse tie rods are connected to the mounting seats via spherical bearings. In this utility model, the longitudinal and transverse tie rods are connected to the mounting seats via spherical bearings. The longitudinal and transverse tie rods respectively satisfy the transmission of longitudinal and transverse forces. The longitudinal and transverse tie rods are only subjected to force along their length direction, avoiding excessive force in other directions, preventing additional bending moments and torques, and improving the safety of the tie rods.

Description

Technical Field

[0001] This utility model relates to the field of articulation device technology, and more specifically, to an articulation device for maglev vehicles. Background Technology

[0002] Rail vehicles generally consist of multiple carriages. The articulation device of a rail vehicle is the main carrier for force transmission between carriages. The articulation device is designed to meet the requirements based on the magnitude and direction of the force to be transmitted between carriages.

[0003] Maglev trains operate in a non-adhesive manner under normal conditions, and each car has independent levitation and traction braking forces, resulting in relatively small interaction forces between cars. In fault mode or rescue situations, due to their lighter weight, the forces borne by the articulated devices of maglev trains are relatively smaller compared to other rail vehicles.

[0004] Maglev vehicles require mechanical connections between their carriages. Due to space and weight constraints, traditional couplers are not used. Tramways and buses typically use articulated joints consisting of upper and lower articulated components. These joints are subject to significant forces in all directions (for example, when carriages move relative to each other, the upper and lower articulated components act as restraints, and they themselves are subjected to longitudinal, lateral, and vertical forces, affecting structural safety), resulting in a large overall structure and weight. Utility Model Content

[0005] The present invention aims to provide an articulation device for maglev vehicles to solve the problem of large forces in all directions in existing articulation devices for rail vehicles.

[0006] This utility model is achieved using the following technical solution: This utility model provides a hinge device for a maglev vehicle, including two mounting seats, which are respectively installed at the ends of two adjacent carriages; A longitudinal tie rod is connected between the two mounting bases, and the longitudinal tie rod is arranged longitudinally; A transverse tie rod is also connected between the two mounting bases, and the transverse tie rod is arranged transversely; The longitudinal tie rod, the transverse tie rod, and the mounting base are connected by a spherical bearing.

[0007] As a preferred technical solution: The transverse tie rod is arranged perpendicular to the longitudinal tie rod.

[0008] As a preferred technical solution: The spherical bearing includes an inner ring having an outer spherical surface and an outer ring having an inner spherical surface, the inner ring being rotatably connected in the outer ring.

[0009] As a preferred technical solution: The outer ring is used for fixed connection with the longitudinal tie rod or the transverse tie rod, and the inner ring is used for fixed connection with the mounting base.

[0010] As a preferred technical solution: The outer ring of the spherical plain bearing is interference-fitted into a circular cavity at the end of the longitudinal tie rod or the transverse tie rod, and the inner ring of the spherical plain bearing is connected to the mounting base by a bolt assembly.

[0011] As a preferred technical solution: The mounting base is provided with a mounting base boss at the connection between the mounting base and the inner ring of the spherical plain bearing, and a bearing boss is provided at the end of the inner ring of the spherical plain bearing. The mounting base boss and the bearing boss are opposite to and abut against each other. The mounting base boss is used to restrict one side of the inner ring of the spherical plain bearing. The mounting base boss cooperates with the bolt assembly to restrict the spherical plain bearing from moving around.

[0012] As a preferred technical solution: The transverse tie rod is an arc-shaped rod, and the force-bearing surfaces of the mounting base, the transverse tie rod, and the longitudinal tie rod are on the same horizontal plane.

[0013] As a preferred technical solution: The mounting base is L-shaped, with one straight side fitting against the end of the carriage and fixedly connected to the carriage, and the other straight side perpendicular to the end of the carriage. The mounting base can provide an installation position for the longitudinal tie rod and the transverse tie rod. The longitudinal tie rod is connected to the middle position of the two straight sides of the mounting base, and the transverse tie rod is connected to the end of the two straight sides of the mounting base.

[0014] As a preferred technical solution: The spherical bearing is a rubber spherical bearing.

[0015] As a preferred technical solution: The longitudinal tie rod and the transverse tie rod are provided with weight reduction holes; The mounting base is provided with weight reduction holes.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The hinge device of this utility model has a compact structure, small size, and small space occupation; 2. The longitudinal tie rod and transverse tie rod of the hinge device of this utility model are connected to the mounting base through a spherical bearing, and its inner and outer rings can rotate relative to each other. Therefore, it can meet the large-angle rotational displacement between carriages. The hinge device of this invention transmits longitudinal tensile and compressive forces between the longitudinal tie rod and the mounting base. The longitudinal tie rod does not bear lateral or vertical forces. The lateral tie rod transmits lateral tensile and compressive forces between the lateral tie rod and the mounting base. The lateral tie rod does not bear longitudinal or vertical forces. This invention satisfies the transmission of longitudinal and lateral forces respectively through the longitudinal and lateral tie rods. The longitudinal and lateral tie rods are only subjected to forces in their axial directions, avoiding bending moments and torques caused by forces in other directions, improving the safety of the tie rods, and solving the problem of large forces in various directions affecting structural safety in existing hinge devices. 3. The mounting base, transverse tie rod and longitudinal tie rod of the hinge device of this utility model are on the same horizontal plane. There is only a horizontal rotational torque between the hinge device and the carriage, avoiding rotational torque components in other directions. Therefore, the requirements for the carriage end beam are lower, which can reduce the weight of the carriage end beam and is conducive to the lightweighting of maglev vehicles. 4. The mounting base, longitudinal tie rod and transverse tie rod of the hinge device of this utility model are provided with weight reduction holes. Therefore, the hinge device is lightweight, which is beneficial to the lightweighting of maglev vehicles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the articulated device for maglev vehicles described in this utility model.

[0018] Figure 2 This is a top view of the installation diagram of the articulated device for maglev vehicles described in this utility model.

[0019] Figure 3 This is a schematic diagram (front view) of the installation of the articulated device for maglev vehicles described in this utility model.

[0020] Icons: 1-Carriage 1, 2-Mounting base, 3-Spherical bearing 1, 4-Longitudinal tie rod, 5-Transverse tie rod, 6-Spherical bearing 2, 7-Bolt assembly 2, 8-Bolt assembly 1, 9-Carriage 2, 10-Mounting base boss, 11-Bearing boss, 12-Mounting hole, 13-Weight reduction hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1 like Figures 1-3As shown, this embodiment proposes a hinge device for a maglev vehicle, including two mounting seats 2, which are respectively installed at the ends of two adjacent carriages.

[0023] Preferably, the two mounting seats 2 are respectively fixedly installed on the end beams of two adjacent carriages, namely carriage 1 and carriage 9. The mounting seats 2 are provided with mounting holes 12, and the mounting seats 2 can be fixedly installed on the end beams by installing bolts in the mounting holes 12.

[0024] A longitudinal tie rod 4 is connected between the two mounting bases 2. The longitudinal tie rod 4 is arranged longitudinally, and the length direction of the longitudinal tie rod 4 is along the longitudinal direction, which refers to the vehicle's travel direction.

[0025] A transverse tie rod 5 is also connected between the two mounting bases 2. The transverse tie rod 5 is arranged in a transverse direction and is perpendicular to the longitudinal tie rod 4.

[0026] Preferably, the mounting base 2 is L-shaped, with one straight side fitting against and fixedly connected to the end of the carriage, and the other straight side perpendicular to the end of the carriage, the included angle between the two straight sides being 90°. The mounting base 2 provides mounting positions for the longitudinal tie rod 4 and the transverse tie rod 5. The longitudinal tie rod 4 is connected between two mounting bases 2, for example, it can be connected at the middle position of one straight side of the mounting base 2; the transverse tie rod 5 is connected to the end of the other straight side of the two mounting bases 2.

[0027] The shape of the mounting base 2 is not limited to L-shape. Other shapes that can provide mounting positions for the longitudinal tie rod 4 and the transverse tie rod 5, and realize the longitudinal arrangement of the longitudinal tie rod 4 and the transverse arrangement of the transverse tie rod 5, are also possible.

[0028] The longitudinal tie rod 4, the transverse tie rod 5, and the mounting base 2 are connected by a spherical bearing.

[0029] Preferably, the spherical bearing includes an inner ring having an outer spherical surface and an outer ring having an inner spherical surface, the inner ring being rotatably connected in the outer ring.

[0030] Preferably, the outer ring is used to be fixedly connected to the longitudinal tie rod 4 or the transverse tie rod 5, and the inner ring is used to be fixedly connected to the mounting base 2.

[0031] Specifically, the two ends of the longitudinal tie rod 4 are connected to the two mounting seats 2 respectively through a joint bearing 3, and the two ends of the transverse tie rod 5 are connected to the two mounting seats 2 respectively through a joint bearing 6.

[0032] Preferably, the outer ring of the first spherical bearing 3 is interference-fitted into the circular cavity at the end of the longitudinal tie rod 4, and the inner ring of the first spherical bearing 3 is connected to the mounting base 2 via bolt assembly 8; the outer ring of the second spherical bearing 6 is interference-fitted into the circular cavity at the end of the transverse tie rod 5, and the inner ring of the second spherical bearing 6 is connected to the mounting base 2 via bolt assembly 7. The bolt assembly includes a bolt and a nut, and the connection via bolt and nut facilitates installation and disassembly.

[0033] Because the longitudinal tie rod 4, the transverse tie rod 5, and the mounting base 2 are connected by a spherical bearing, their inner and outer rings can rotate relative to each other. Therefore, large-angle rotational displacement between the first carriage 1 and the second carriage 9 can be satisfied. Simultaneously, the longitudinal tie rod 4 transmits longitudinal tensile and compressive forces with the mounting base 2, while the longitudinal tie rod 4 does not bear lateral or vertical forces. Similarly, the transverse tie rod 5 transmits lateral tensile and compressive forces with the mounting base 2, while the transverse tie rod 5 does not bear longitudinal or vertical forces. Therefore, one hinge device can simultaneously transmit longitudinal and lateral forces between two adjacent carriages, but it does not transmit vertical forces between two adjacent carriages. The longitudinal tie rod 4 and the transverse tie rod 5 are only subjected to forces along their axial direction, avoiding bending moments and torques generated by forces in other directions, improving the safety of the tie rods, and solving the problem of large forces in various directions affecting structural safety in existing hinge devices.

[0034] With the above structure, the articulation device of this utility model can simultaneously satisfy the transmission of longitudinal and lateral forces while occupying a small space, and can also satisfy large-angle rotational displacement between carriages.

[0035] After the carriages are assembled and coupled, the articulation device can satisfy the allowable relative movement between adjacent carriages, including nodding, shaking, deflection, vertical displacement and other movements, while limiting the longitudinal and lateral displacement between carriages.

[0036] The first joint bearing 3 and the second joint bearing 6 mainly bear radial forces, while forces in other directions are negligible.

[0037] Preferably, the spherical bearing is a rubber spherical bearing.

[0038] Example 2 The difference between this embodiment and Embodiment 1 is that: like Figure 3As shown, a mounting boss 10 is provided at the connection between the mounting base 2 and the inner ring of the spherical plain bearing 3, and a bearing boss 11 is provided at the end of the inner ring of the spherical plain bearing 3. The mounting boss 10 and the bearing boss 11 are opposite to and abut against each other. The mounting boss 10 is used to restrict one side of the inner ring of the spherical plain bearing 3. After the spherical plain bearing 3 is installed on the mounting base 2 by the bolt assembly 8, the mounting boss 10 can cooperate with the bolt assembly 8 to restrict the spherical plain bearing 3 from moving.

[0039] The mounting base 2 is also provided with a mounting base boss 10 at the connection between it and the inner ring of the second spherical plain bearing 6. The end of the inner ring of the second spherical plain bearing 6 is also provided with a bearing boss 11. The mounting base boss 10 and the bearing boss 11 are opposite to and abut against each other. The mounting base boss 10 is used to restrict one side of the inner ring of the second spherical plain bearing 6. After the second spherical plain bearing 6 is installed on the mounting base 2 by the bolt assembly 27, the mounting base boss 10 can cooperate with the bolt assembly 27 to restrict the second spherical plain bearing 6 from moving around.

[0040] Preferably, one end of the bolt in bolt assembly 8 passes through the spherical bearing 3 and the mounting base 2, and is then connected to a nut. The nut is irregularly shaped and fits into the countersunk hole on the mounting base 2, thereby achieving an anti-loosening effect. One end of the bolt in bolt assembly 7 passes through the spherical bearing 6 and the mounting base 2, and is then connected to a nut. The nut is irregularly shaped and fits into the countersunk hole on the mounting base 2, thereby achieving an anti-loosening effect.

[0041] Example 3 The difference between this embodiment and Embodiment 1 is that: The transverse tie rod 5 is an arc-shaped rod that passes under the longitudinal tie rod 4. This design ensures that the force-bearing surfaces of the mounting base 2, the transverse tie rod 5, and the longitudinal tie rod 4 are on the same horizontal plane. When there is rotation between the carriages, the longitudinal tie rod 4 and the transverse tie rod 5 do not interfere with each other. This design saves space in the entire device while allowing for smoother force transmission.

[0042] The first joint bearing 3 and the second joint bearing 6 are arranged in the same horizontal plane. At the same time, the bolt assembly 8 between the first joint bearing 3 and the mounting base 2, and the bolt assembly 7 between the second joint bearing 6 and the mounting base 2 are also located in the same horizontal plane. The force-bearing surfaces of the mounting base 2, the transverse tie rod 5 and the longitudinal tie rod 4 are in the same horizontal plane. There is only a horizontal rotational torque between the hinge device and the car body, avoiding rotational torque components in other directions. Therefore, the requirements for the end beams of the car body are lower, which can reduce the weight of the end beams of the car body and is conducive to the lightweighting of maglev vehicles.

[0043] Example 4 The difference between this embodiment and Embodiment 1 is that: The longitudinal tie rod 4 can be a straight rod, an arc rod, or a rectangular rod, etc., and the transverse tie rod 5 can be a straight rod, an arc rod, or a rectangular rod, etc.

[0044] Example 5 The difference between this embodiment and Embodiment 1 is that: The longitudinal tie rod 4 and the transverse tie rod 5 are made of I-beams, and weight reduction holes 13 can be designed on the I-beams, which is beneficial to the lightweighting of the maglev vehicle. If the strength requirements are met, a weight reduction hole 13 can be provided on the mounting base 2, which is beneficial to the lightweighting of the maglev vehicle.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hinge device for a maglev vehicle, characterized in that: It includes two mounting bases, which are respectively installed at the ends of two adjacent carriages; A longitudinal tie rod is connected between the two mounting bases, and the longitudinal tie rod is arranged longitudinally; A transverse tie rod is also connected between the two mounting bases, and the transverse tie rod is arranged transversely; The longitudinal tie rod, the transverse tie rod, and the mounting base are connected by a spherical bearing.

2. The articulation device for maglev vehicles according to claim 1, characterized in that: The transverse tie rod is arranged perpendicular to the longitudinal tie rod.

3. The articulation device for maglev vehicles according to claim 1, characterized in that: The spherical bearing includes an inner ring having an outer spherical surface and an outer ring having an inner spherical surface, the inner ring being rotatably connected in the outer ring.

4. The articulation device for maglev vehicles according to claim 3, characterized in that: The outer ring is used for fixed connection with the longitudinal tie rod or the transverse tie rod, and the inner ring is used for fixed connection with the mounting base.

5. The articulation device for maglev vehicles according to claim 4, characterized in that: The outer ring of the spherical plain bearing is interference-fitted into a circular cavity at the end of the longitudinal tie rod or the transverse tie rod, and the inner ring of the spherical plain bearing is connected to the mounting base by a bolt assembly.

6. The articulation device for maglev vehicles according to claim 5, characterized in that: The mounting base is provided with a mounting base boss at the connection between the mounting base and the inner ring of the spherical plain bearing, and a bearing boss is provided at the end of the inner ring of the spherical plain bearing. The mounting base boss and the bearing boss are opposite to and abut against each other. The mounting base boss is used to restrict one side of the inner ring of the spherical plain bearing. The mounting base boss cooperates with the bolt assembly to restrict the spherical plain bearing from moving around.

7. The articulation device for maglev vehicles according to claim 5, characterized in that: The transverse tie rod is an arc-shaped rod, and the force-bearing surfaces of the mounting base, the transverse tie rod, and the longitudinal tie rod are on the same horizontal plane.

8. The articulation device for maglev vehicles according to claim 1, characterized in that: The mounting base is L-shaped, with one straight side fitting against the end of the carriage and fixedly connected to the carriage, and the other straight side perpendicular to the end of the carriage. The mounting base can provide an installation position for the longitudinal tie rod and the transverse tie rod. The longitudinal tie rod is connected to the middle position of the two straight sides of the mounting base, and the transverse tie rod is connected to the end of the two straight sides of the mounting base.

9. The articulation device for maglev vehicles according to claim 1, characterized in that: The spherical bearing is a rubber spherical bearing.

10. The articulation device for maglev vehicles according to claim 1, characterized in that: The longitudinal tie rod and the transverse tie rod are provided with weight reduction holes; The mounting base is provided with weight reduction holes.

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