A medium-low speed maglev vehicle and a suspension frame thereof

Abstract

A medium-low speed maglev vehicle and a suspension frame thereof, comprising a suspension frame body, a supporting arm and a sliding table assembly; the suspension frame body comprises two longitudinal beams and a cross beam, the two ends of the cross beam are fixedly connected with the middle parts of the two longitudinal beams respectively; the supporting arm is located at the two ends of the longitudinal beams; the sliding table assembly is provided with two, and the two sliding table assemblies are located on the two longitudinal beams respectively; the sliding table assembly comprises a sliding table, an air spring and a connecting rod, the bottom of the air spring is fixedly connected with the middle part of the top of the longitudinal beam, the top of the air spring is fixedly connected with the bottom of the sliding table, and the sliding table is hinged with the suspension frame body through the connecting rod. The suspension frame adopts the I-shaped frame, so that the structure is more stable. The air spring is arranged at the middle part of the longitudinal beam, so that the vehicle has better curve passing capacity. The electromagnetic iron decoupling mode is adopted to replace the suspension frame decoupling, so that the structure is simple, the cumulative error is small, the equipment space of the bottom frame can be increased, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of maglev vehicle technology, specifically to a medium-low speed maglev vehicle and its suspension frame. Background Technology

[0002] Medium- and low-speed maglev vehicles typically employ a control method that separately controls the levitation gap between the electromagnet modules on both sides of the suspension frame. Therefore, to prevent changes in the levitation gap between the two electromagnets from affecting each other, the suspension frame must possess a certain degree of decoupling capability, ensuring that the vertical displacements of the electromagnets on both sides are relatively independent.

[0003] Chinese invention patent application CN111483326A discloses a low-roll-amount suspension frame for medium- and low-speed maglev trains and the maglev train itself. This suspension frame employs two sets of parallelogram-shaped anti-roll decoupling structures located at both ends of the frame for decoupling. Its disadvantages include: the suspension frame structure has many complex connecting parts, and the tolerances between components can easily accumulate into errors, leading to relative deviations between the inner and outer pole plates of the electromagnets, which is detrimental to levitation stability. Furthermore, because the anti-roll decoupling structures are located at both ends of the suspension frame and also include air springs, they occupy a significant amount of space in the underframe equipment, which not only hinders underframe equipment layout but also increases vehicle costs. Summary of the Invention

[0004] This application provides a medium-low speed maglev vehicle and its suspension frame, which solves the problems of complex suspension frame structure, unfavorable layout of underframe equipment, and increased vehicle cost of existing medium-low speed maglev vehicles.

[0005] To achieve the above objectives, this application adopts the following technical solution.

[0006] On the one hand, a suspension frame for medium- and low-speed maglev vehicles is provided, including a suspension frame body, a support arm, and a sliding platform assembly;

[0007] The suspension frame body includes two longitudinal beams and one transverse beam, with both ends of the transverse beam fixedly connected to the middle of the two longitudinal beams respectively; the support arms are located at both ends of the longitudinal beams.

[0008] The slide assembly is provided in two parts, and the two slide assemblies are respectively located on the two longitudinal beams;

[0009] The slide assembly includes a slide, an air spring, and a connecting rod. The bottom of the air spring is fixedly connected to the middle of the top of the longitudinal beam, and the top of the air spring is fixedly connected to the bottom of the slide. The slide is hinged to the suspension frame body via the connecting rod.

[0010] In some embodiments, a linear motor is mounted on the bottom of the longitudinal beam.

[0011] In some embodiments, the support arm is C-shaped and bends inward toward the inside of the suspension frame body, and the top of the support arm is fixedly connected to the longitudinal beam.

[0012] In some embodiments, a suspension component is provided below each of the two longitudinal beams;

[0013] The levitation assembly includes two electromagnet plates, a connecting plate, and an electromagnet coil. The two electromagnet plates are connected by the connecting plate, and the electromagnet coil is sandwiched between the two electromagnet plates.

[0014] The electromagnet pole plate has mounting holes at both ends, and the connecting plate is located at the bottom of the mounting holes;

[0015] A rubber stack is provided in the mounting hole, the bottom of the rubber stack is connected to the upper surface of the connecting plate, and the bottom of the support arm is inserted into the mounting hole and connected to the top of the rubber stack.

[0016] On the other hand, a medium-low speed maglev vehicle is provided, including the aforementioned maglev vehicle suspension frame and maglev vehicle body. The bottom of the maglev vehicle body is provided with a track along the width direction of the maglev vehicle body, and the track is slidably connected to the slide.

[0017] This application has at least the following technical effects or advantages:

[0018] 1. An I-beam frame is adopted, making the structure more stable. The air spring is placed in the middle of the longitudinal beam, giving the vehicle better curve handling ability.

[0019] 2. The number of air springs and slides has been reduced by half, simplifying the suspension frame structure, increasing the space for the base frame equipment, and reducing manufacturing costs.

[0020] 3. Electromagnetic decoupling is used instead of suspension frame decoupling, which is simple in structure, has small cumulative error, reduces the constraints of suspension frame decoupling on suspension frame structure design, and makes suspension frame structure more diversified. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the suspension frame of a medium- and low-speed maglev vehicle in one embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the suspension frame body in one embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the suspension component in one embodiment of this application (rubber stack is hidden);

[0024] Figure 4 for Figure 1 The front view;

[0025] Figure 5 for Figure 4 AA section view;

[0026] Figure 6 for Figure 5 Enlarged view of region B in the middle;

[0027] Figure 7 This is a schematic diagram of the structure of the rubber stack in one embodiment of this application;

[0028] Figure 8 This is a schematic diagram illustrating the connection relationship between a medium-low speed maglev vehicle and a suspension frame in one embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the structure of a medium-low speed maglev vehicle equipped with the suspension frame of this application in one embodiment of the present application. Detailed Implementation

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] See Figures 1-7 A magnetic levitation vehicle suspension frame, comprising a suspension frame body, a support arm, and a sliding platform assembly;

[0032] The suspension frame body includes two longitudinal beams 1 and one crossbeam 2, with both ends of the crossbeam 2 fixedly connected to the middle of the two longitudinal beams 1 respectively. A linear motor 11 is installed at the bottom of the longitudinal beams 1.

[0033] The support arm 3 is located at both ends of the longitudinal beam 1. The support arm 3 is in the shape of a C-shaped arm that bends towards the inside of the suspension frame body. The top of the support arm 3 is fixedly connected to the longitudinal beam 1.

[0034] There are two slide assemblies, which are located on two longitudinal beams 1 respectively. Each slide assembly includes a slide 41, an air spring 42 and a connecting rod 43. The bottom of the air spring 42 is fixedly connected to the middle of the top of the longitudinal beam 1, and the top of the air spring 42 is fixedly connected to the bottom of the slide 41. The slide 41 is hinged to the suspension frame body through the connecting rod 43 and the hinge 44.

[0035] Below each longitudinal beam 1 is a suspension assembly, which includes two electromagnet pole plates 51, a connecting plate 52, and an electromagnet coil 53. The two electromagnet pole plates 51 are connected by the connecting plate 52, and the electromagnet coil 53 is sandwiched between the two electromagnet pole plates 51. Mounting holes 54 are provided at both ends of the electromagnet pole plates 51, and the connecting plate 52 is located at the bottom of the mounting holes 54. A rubber stack 6 is provided inside the mounting holes, and the bottom of the rubber stack 6 is connected to the upper surface of the connecting plate 52. The bottom of the support arm 3 is inserted into the mounting hole 54 and connected to the top of the rubber stack 6.

[0036] The present invention also provides a maglev train, such as Figure 8 and Figure 9 As shown, the vehicle includes the aforementioned maglev vehicle suspension frame and maglev vehicle body 7. The bottom of the maglev vehicle body 7 is provided with a track 8 along the width direction of the maglev vehicle body 7, and the track 8 is slidably connected to the slide table 41.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspension frame for a maglev vehicle, characterized in that: Includes the suspension frame body, support arms, and slide assembly; The suspension frame body includes two longitudinal beams and one transverse beam, with both ends of the transverse beam fixedly connected to the middle of the two longitudinal beams respectively; the support arms are located at both ends of the longitudinal beams. The slide assembly is provided in two parts, and the two slide assemblies are respectively located on the two longitudinal beams; The slide assembly includes a slide, an air spring, and a connecting rod. The bottom of the air spring is fixedly connected to the middle of the top of the longitudinal beam, and the top of the air spring is fixedly connected to the bottom of the slide. The slide is hinged to the suspension frame body via the connecting rod. A suspension component is provided below each of the two longitudinal beams; The levitation assembly includes two electromagnet plates, a connecting plate, and an electromagnet coil. The two electromagnet plates are connected by the connecting plate, and the electromagnet coil is sandwiched between the two electromagnet plates. The electromagnet pole plate has mounting holes at both ends, and the connecting plate is located at the bottom of the mounting holes; A rubber stack is provided in the mounting hole, the bottom of the rubber stack is connected to the upper surface of the connecting plate, and the bottom of the support arm is inserted into the mounting hole and connected to the top of the rubber stack.

2. The magnetic levitation vehicle suspension frame according to claim 1, characterized in that: A linear motor is installed at the bottom of the longitudinal beam.

3. The magnetic levitation vehicle suspension frame according to claim 1 or 2, characterized in that: The support arm is C-shaped and bends inward toward the inside of the suspension frame body, and the top of the support arm is fixedly connected to the longitudinal beam.

4. A medium-low speed maglev vehicle, characterized in that: The system includes a maglev vehicle suspension frame and a maglev vehicle body as described in any one of claims 1-3, wherein the bottom of the maglev vehicle body is provided with a track along the width direction of the maglev vehicle body, and the track is slidably connected to the slide.

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