CN206900196U - A kind of levitation train system and its guide frame - Google Patents

Abstract

The utility model discloses a magnetic levitation vehicle system and its guiding structure. The magnetic levitation vehicle guiding structure is composed of two left and right side beams extending longitudinally side by side. slide table; said left and right traversing slide tables are equipped with slide rails fixedly connected with the car body, and said slide rails move left and right relative to the corresponding traversing slide table; said traverse slide table is also equipped with An elastic damping element arranged longitudinally, one end of the elastic damping element is connected with the traverse slide table, and the other end of the elastic damping element is used for connecting with the bottom of the vehicle body. The guiding structure of the utility model effectively solves the contradiction between high-speed guiding performance and low-speed small curve passing performance, and is simple in structure and convenient to arrange.

Description

A magnetic levitation vehicle system and its guiding structure

technical field

The utility model relates to a magnetic levitation vehicle system and a guide structure thereof, belonging to the field of rail transit magnetic levitation vehicles.

Background technique

The magnetic levitation air spring mid-mounted suspension frame has better electromagnet suspension stability. However, since the air spring is arranged in the middle of the side beam, the installation space for the equipment under the maglev vehicle is very small, and it is almost impossible to arrange another set of forced guiding mechanism.

Chinese patent CN201220651142.0 discloses a suspension frame mechanism for medium and low-speed magnetic levitation vehicles, which includes at least two end suspension frames and at least one middle suspension frame. Springs, transverse tie rods and anti-rolling rods, sliding tables and air springs are all located in the middle of the longitudinal beams, and a sliding table is set on each longitudinal beam, and the sliding tables are fixedly supported on the longitudinal beams by air springs, and the sliding tables pass through The transverse tie rods are connected, and the longitudinal beams are connected by anti-rolling tie rods. Both the transverse tie rods and the anti-rolling tie rods are located in the middle of the suspension frame. The slide table is connected with the train body through the linear guide rail, and the slide table and the longitudinal beam are connected through the draw bar. This patent adopts the method of replacing the bolster and the Z-shaped draw bar with the center of the sliding table and the linear bearing, which simplifies the structure and facilitates maintenance. However, the mid-mounted traverse slide suspension frame of Chinese patent CN201220651142.0 cannot transmit the lateral force of the vehicle body to the steel rail.

Utility model content

The utility model aims to provide a magnetic levitation vehicle system and its guiding structure. The guiding structure can effectively solve the contradiction between high-speed guiding performance and low-speed small curve passing performance, and the structure is simple and convenient to arrange.

In order to achieve the above object, the technical solution adopted in the utility model is:

A magnetic levitation vehicle guide structure, comprising two side-by-side longitudinally extending left and right side beams, and a left and right traversing sliding platform arranged on the left and right side beams through elastic damping elements; its structural feature is that the left and right traversing sliding platform Both are equipped with slide rails for fixed connection with the car body, and the slide rails move left and right relative to the corresponding traversing slides; the traversing slides are also equipped with elastic damping elements perpendicular to the longitudinal direction, and the elastic damping One end of the element is connected with the traverse slide, and the other end of the elastic damping element is used for connecting with the bottom of the vehicle body.

According to the embodiments of the present invention, the present invention can also be further optimized, and the following is the technical scheme formed after optimization:

Preferably, the left and right traversing slides are connected by tie rods.

In order to reduce friction, a lubricating layer is provided between the traverse slide table and the slide rail.

Preferably, the elastic damping element is an air spring.

Preferably, the elastic damping element is a coupling shock absorber.

In order to improve the vibration damping effect and facilitate the arrangement, the coupling damper is arranged obliquely.

Preferably, the left and right side beams are correspondingly installed on corresponding F-shaped rails.

In order to improve the anti-roll capability of the maglev vehicle, the left and right side beams are equipped with anti-roll beams arranged laterally toward the inside of the track, and the left and right side beams are hingedly connected to each other.

Based on the same inventive concept, the utility model also provides a magnetic levitation vehicle system, which includes two F-shaped rails and a magnetic levitation vehicle body, a suspension frame is arranged between the magnetic levitation vehicle body and the F-shaped track; the suspension frame It has the above-mentioned guiding structure of the magnetic levitation vehicle.

Preferably, the left and right side beams are correspondingly arranged on two F-shaped rails, the left and right side beams are equipped with left and right traversing slides through elastic damping elements, and the left and right traversing slides are equipped with The slide rail fixedly connected with the magnetic levitation car body can move left and right relative to the corresponding traverse slide table; the traverse slide table is also connected with the bottom of the magnetic levitation car body through an elastic damping element vertically arranged.

The utility model finds out the working principle of the forced guiding mechanism through mechanical analysis and dynamic calculation: the forced guiding mechanism couples the suspension modules with asynchronous vibrations, forcing the connected modules to move synchronously, and this process can transmit the dynamic guiding force ; while the maglev vehicle passes through a small curve at low speed, the dynamic component of the guiding force is very small, mainly quasi-static guiding force, forcing the guiding mechanism not to transmit the static guiding force, so that the vehicle can pass the curve smoothly.

Through the above analysis, the purpose of the forced guiding structure is to realize the function of transmitting dynamic guiding force and unloading quasi-static guiding force.

The shock absorber of the bogie of the traditional railway locomotive has this function. For example, the anti-snake shock absorber of the bogie can suppress the mid-high frequency snake movement of the bogie, and at the same time, it can release the guiding constraint when passing a small curve, which solves the problem of high-speed guiding performance. There is a contradiction between low speed and small curve passing performance mutual restriction.

Maglev vehicles also need to solve the contradiction between high-speed guidance performance and low-speed small curve passing performance. The utility model can solve this contradiction by adopting the combined structure of the suspension frame traversing slide table + the transverse coupling shock absorber. load characteristics.

With the above-mentioned structure, the guide structure of the magnetic levitation vehicle of the present invention not only maintains the low-speed and small-radius passing ability of the magnetic levitation vehicle, but also enhances the The transmission of the lateral force between the suspension frame and the car body during high-speed straight running and large-radius curve running of the maglev vehicle (the shock absorber transmits medium and high-frequency force), so as to share the lateral force of the car body to each suspension frame module. Therefore, the lateral force of one of the modules is effectively reduced, and the guiding ability of the maglev vehicle is enhanced.

Compared with the prior art, the beneficial effect of the utility model is: the utility model has a simple structure, and by adding a transverse coupling shock absorber at the bottom of the traversing slide and the car body, it is very effective to realize the The guiding force of each module is shared with each other, and the guiding constraints are fully released when passing a small curve at low speed. It can replace the complete set of complex forced guide mechanism of the existing magnetic levitation vehicle.

The resistance characteristic curve of the transversely coupled shock absorber of the utility model should be set as characteristics of low-frequency tension and compression unloading and medium and high-frequency tension and compression rated load.

The coupling and connecting device between the mid-mounted traverse slide suspension frame and the car body of the utility model can effectively solve the problem that the mid-mount traverse slide suspension frame of the Chinese patent CN201220651142.0 cannot transmit the lateral force of the car body to the rail .

Description of drawings

Fig. 1 is the front view of an embodiment of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a left side view of Fig. 1 .

In the picture

1-F-type track; 2-Suspension frame side beam composition; 3-Anti-rolling beam composition; 4-Transverse sliding table; 5-Sliding table pull rod; 6-Slide rail; 7-Air spring; 8-Coupling vibration reduction device.

Detailed ways

The utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

A magnetic levitation vehicle system and its guide structure, as shown in Figures 1 to 3, the suspension frame of the magnetic levitation vehicle runs around the F-shaped track 1, the suspension frame is composed of left and right side beams 2, anti-side roll beams 3, left and right lateral sliding Table 4, sliding table pull rod 5, slide rail 6, left and right air springs 7 and coupling shock absorber 8 and so on.

The slide rail 6 is fixedly connected with the car body, and the slide rail 6 installed at the bottom of the car body can slide horizontally along the left and right traversing slide table 4 almost without friction. The contact surface between the slide rail 6 and the traverse slide table 4 is lubricated with grease. The coupling shock absorber 8 is arranged laterally, and connects the traversing slide table 4 and the bottom of the vehicle body.

When the maglev vehicle runs at high speed, the car body and the suspension frame will move laterally due to the unevenness of the line. This lateral movement causes a tension and compression reciprocation of the coupled shock absorber 8, generating a damping force. The damping force acts on the left side traversing slide 4, and the left side traversing slide 4 transmits half of the damping force to the right side traversing slide 4 through the slide bar 5. The left and right traversing slide 4 transmits the force to the left and right side beams 2 through the left and right air springs 7, and then transmits the force to the left and right F-shaped rails 1 through the electromagnets rigidly installed on the left and right side beams 2, so that the car body and the F Complete transmission of lateral forces between the rails1.

There is no coupling shock absorber 8 in the existing spring center-mounted suspension frame of the traverse slide table, so the lateral force of the car body cannot be transmitted to the F-shaped track 1 through the suspension frame with the traverse slide table, but can only be transmitted through the suspension frame with the fixed slide table. The suspension frame of the table transmits the lateral force. This will cause the guiding force of the suspension frame with the fixed sliding table to be too large, which is not conducive to the high-speed operation of the maglev vehicle.

And the suspension frame of the utility model is equipped with a coupling shock absorber 8, and the lateral force of the car body can be transmitted to the suspension frame through the coupling shock absorber 8 and then to the F-shaped track 1. Due to the characteristics of the shock absorber, the coupling shock absorber 8, as a carrier for lateral force transmission, can only transmit dynamic force (force generated by the relative velocity at both ends of the shock absorber), and cannot transmit static force (static tension or pressure).

When the magnetic levitation vehicle adopting the suspension frame of the utility model passes through a small curve at low speed, the lateral movement speed of the vehicle body relative to the left and right traversing slide table 4 is very low, especially when running on a circular curve, the vehicle body is relatively traversing with the left and right slide table 4. The lateral movement is basically 0. Therefore, the damping force of the coupling shock absorber 8 is very small, and there will not be too much hindrance to the track operation of the suspension frame.

The resistance characteristic curve of the laterally coupled shock absorber of the utility model should be set as characteristics of low-frequency tension and compression unloading and medium-high frequency tension and compression rated load.

To sum up, through mechanical analysis and dynamic calculation verification, the utility model proposes the most concise structure to solve the contradiction between the high-speed guiding performance and the low-speed small curve passing performance of the maglev vehicle.

The above-mentioned embodiments should be understood that these embodiments are only used to illustrate the utility model more clearly, and are not intended to limit the scope of the utility model. After reading the utility model, those skilled in the art will understand each aspect of the utility model Modifications in various equivalent forms all fall within the scope defined by the appended claims of this application.

Claims (10)

1. A guide structure for a magnetically levitated vehicle, comprising two left and right side beams (2) extending longitudinally side by side, and a left and right traversing slide (4) arranged on the left and right side beams through elastic damping elements; it is characterized in that, The left and right traversing slides (4) are equipped with slide rails (6) fixedly connected with the car body, and the slide rails (6) move left and right relative to the corresponding traversing slides (4); The traversing slide (4) is also equipped with an elastic damping element perpendicular to the longitudinal direction, one end of the elastic damping element is connected with the traversing slide (4), and the other end of the elastic damping element is used to connect with the vehicle body connected at the bottom. 2. The guiding structure of the magnetic levitation vehicle according to claim 1, characterized in that, the left and right traversing slides (4) are connected by tie rods (5). 3. The guiding structure of the magnetic levitation vehicle according to claim 1, characterized in that a lubricating layer is provided between the traverse slide table (4) and the slide rail (6). 4. The guiding structure of the maglev vehicle according to claim 1, characterized in that, the elastic damping element is an air spring (7). 5. The guide structure for a magnetic levitation vehicle according to claim 1, characterized in that the elastic damping element is a coupling shock absorber (8). 6. The guiding structure of the magnetic levitation vehicle according to claim 5, characterized in that, the coupling damper (8) is arranged obliquely. 7. The guide structure for a magnetic levitation vehicle according to any one of claims 1-6, characterized in that the left and right side beam components (2) are correspondingly installed on the corresponding F-shaped rails (1). 8. The guide structure for a magnetic levitation vehicle according to any one of claims 1-6, characterized in that, the left and right side beam components (2) are equipped with anti-roll beam components (3) arranged laterally toward the inner side of the track, The left and right side beam components (2) and the anti-roll beam components (3) are hingedly connected. 9. A magnetic levitation vehicle system, comprising two F-shaped tracks (1) and a magnetic levitation vehicle body, a suspension frame is provided between the magnetic levitation vehicle body and the F-shaped track (1); it is characterized in that the suspension frame has The guide structure for a magnetic levitation vehicle as claimed in any one of claims 1-8. 10. The maglev vehicle system according to claim 9, characterized in that, the left and right side beam components (2) are correspondingly arranged on two F-shaped rails (1), and the left and right side beam components (2) pass through The elastic damping element is provided with left and right traversing slides (4), and the left and right traversing slides (4) are equipped with slide rails (6) fixedly connected with the magnetic levitation car body, and the slide rails (6) can be relatively corresponding The traversing slide (4) moves left and right; the traversing slide (4) is also connected to the bottom of the maglev car body through an elastic damping element perpendicular to the longitudinal direction.