CN108372798A - A kind of medium-and low-speed maglev train suspension redundant system - Google Patents

Abstract

The invention relates to a suspension redundancy system for medium and low-speed maglev trains. The system includes multiple sets of suspension units. The suspension force centerlines of the suspension units overlap each other. Compared with the prior art, the redundant suspension units provided by the present invention can effectively avoid the continuous contact between the suspension frame and the track, improve the availability of the suspension system, and ensure the safe and stable operation of the train.

Description

A Redundant Suspension System for Medium and Low Speed Maglev Trains

technical field

The invention relates to the technical field of rail transit vehicles, in particular to a suspension redundancy system for medium and low-speed maglev trains.

Background technique

The maglev train is a major technological innovation in the field of transportation. The maglev train realizes the non-contact suspension and guidance between the train and the track through electromagnetic force, and then uses the electromagnetic force generated by the linear motor to drive the train. As a form of maglev trains, medium and low-speed maglev trains have the advantages of low noise, high comfort, and good environmental performance, and can meet the transportation needs within the city, between suburbs and short distances between cities.

Stable and reliable realization of train levitation is the basis for ensuring punctual operation of maglev trains. At present, medium and low-speed maglev trains adopt electromagnetic levitation technology, relying on multiple levitation electromagnets installed on the suspension frame under the car to generate levitation force to realize train levitation. The connection mode of the existing suspension system is shown in Figure 1, including four suspension electromagnet poles, respectively suspension electromagnet pole 2, suspension electromagnet pole 3, suspension electromagnet pole 4 and suspension electromagnet pole 5, four suspension The electromagnet magnetic pole is installed on one side of the suspension frame 1, and the suspension electromagnet magnetic pole 2 and the suspension electromagnet magnetic pole 3 are connected in series to be powered by the suspension controller 6, and the suspension electromagnet 4 and the suspension electromagnet 5 are connected in series and powered by the suspension controller 7. Thus, the levitation force generated by the four levitation electromagnet poles on one side of the levitation frame 1 realizes levitation. Such a suspension system does not have a redundant design. When the suspension electromagnet pole 2, the suspension electromagnet pole 3, or the suspension controller 6 and their related sensors fail, the suspension point cannot be suspended normally, and this side of the suspension frame 1 will lose Half of the suspension force, the support sled corresponding to the suspension point will have continuous contact with the track, causing the train to decelerate and stop running after clearing passengers at the nearest station, which will generally cause the train to be delayed or cancel the number of running trains, affecting the system availability index .

Therefore, it is necessary to study a suspension redundancy system, which can still ensure that the suspended suspension frame that fails is in a suspended state when a single suspension unit fails and cannot provide suspension force.

Contents of the invention

The object of the present invention is to provide a suspension redundancy system for medium and low-speed maglev trains in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A suspension redundancy system for medium and low-speed maglev trains, the system includes multiple sets of suspension units, any set of suspension units is at least equipped with at least one set of mutually redundant suspension units, and the suspension force centers of the mutually redundant suspension units The lines overlap each other.

Any group of suspension units is configured with a group of mutually redundant suspension units.

The system includes four groups of suspension units, two groups are located in the front half of the suspension frame, and two groups are located in the rear half of the suspension frame, and the two groups of suspension units in the front half of the suspension frame and the rear half of the suspension frame are mutually redundant.

The center line of the suspension force of the two suspension units in the front half of the suspension frame is located at a quarter of the suspension frame.

The center line of the suspension force of the two suspension units in the rear half of the suspension frame is located at three quarters of the suspension frame.

Each set of levitation units includes a levitation controller and two levitation electromagnet poles connected in series, and the levitation electromagnet poles are connected to the levitation controller.

Compared with prior art, the present invention has following advantage:

(1) Any group of suspension units of the present invention is equipped with at least one group of mutually redundant suspension units to realize redundant work. When a group fails, other redundant suspension units can ensure the normal operation of the medium-low speed maglev train;

(2) Each group of suspension units of the present invention is configured with a group of mutually redundant suspension units, which reduces costs while realizing redundancy;

(3) In the present invention, two groups of mutually redundant suspension units are respectively arranged on the front half and the rear half of the suspension frame, and the center line of the suspension force of the front half is located at a quarter of the suspension frame, and the suspension force of the rear half is The center line is located at three-quarters of the suspension frame, which effectively improves the reliability and availability of the suspension system.

Description of drawings

Fig. 1 is the structural representation of traditional suspension system;

Fig. 2 is the schematic structural diagram of the suspension redundancy system of the low-speed maglev train in Embodiment 1 of the present invention;

Among the figure, 1 is a suspension frame, 2 to 5 and 8 to 15 are suspension electromagnet poles, and 6, 7, 16, 17, 18 and 19 are suspension controllers.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the description of the following embodiments is merely an illustration in nature, and the present invention is not intended to limit the applicable objects or uses thereof, and the present invention is not limited to the following embodiments.

Example 1

As shown in Fig. 1, a kind of suspension redundant system of medium and low speed maglev train, this system comprises multiple groups of suspension units, and each group of suspension units all comprises a suspension controller and two suspension electromagnet magnetic poles connected in series, and described suspension The electromagnet poles are connected to the levitation controller. Any group of suspension units is at least equipped with at least one group of mutually redundant suspension units, and the suspension force centerlines of the mutually redundant suspension units overlap each other. In this embodiment, any group of suspension units is configured with a group of mutually redundant suspension units. remaining suspension units.

The system includes four groups of suspension units, two groups are located in the front half of the suspension frame, and two groups are located in the rear half of the suspension frame, and the two groups of suspension units in the front half of the suspension frame and the rear half of the suspension frame are mutually redundant. The center line of the suspension force of the two suspension units in the front half of the suspension frame is located at a quarter of the suspension frame. The center line of the suspension force of the two suspension units in the rear half of the suspension frame is located at three quarters of the suspension frame.

specifically:

In the present embodiment, the low-speed maglev train suspension redundancy system consists of a suspension frame 1, a suspension electromagnet magnetic pole 8, a suspension electromagnet magnetic pole 9, a suspension electromagnet magnetic pole 10, a suspension electromagnet magnetic pole 11, a suspension electromagnet magnetic pole 12, and a suspension electromagnet magnetic pole 13. Suspension electromagnet pole 14, suspension electromagnet pole 15, suspension controller 16, suspension controller 17, suspension controller 18, suspension controller 19, wherein suspension electromagnet pole 8, suspension electromagnet pole 9, suspension electromagnetic Ferromagnetic pole 10, levitation electromagnet pole 11, levitation electromagnet pole 12, levitation electromagnet pole 13, levitation electromagnet pole 14, levitation electromagnet pole 15 are installed on one side of levitation frame 1, levitation electromagnet pole 8, levitation electromagnet The levitation force generated by the levitation controller 16 after the ferromagnetic pole 11 is connected in series through the cable constitutes the first levitation unit; Constitute the second levitation unit; levitation electromagnet pole 12, levitation electromagnet pole 15 pass through the levitation force that levitation controller 18 supplies power after being connected in series by cable, constitute the 3rd levitation unit; levitation electromagnet pole 13, levitation electromagnet pole 14 pass After the cables are connected in series, the levitation force generated by the power supply of the levitation controller 19 constitutes the fourth levitation unit.

The center line of suspension force produced by the first suspension unit and the center line of suspension force produced by the second suspension unit are all located at a quarter of the suspension frame 1, the center line of suspension force produced by the third suspension unit and the center line of suspension force produced by the fourth suspension unit They are all located at three-quarters of the suspension frame 1; when one group of suspension units fails to provide suspension force, the other three groups of suspension units work normally, and this side suspension frame only loses a quarter of the suspension force and works normally The suspension force provided by the suspension unit can still ensure that this side of the suspension frame 1 is in a suspension state, which improves the availability of the system.

Example 2

Any set of suspension units in this embodiment is equipped with at least two sets of suspension units that are mutually redundant, and the rest are the same as in Embodiment 1. Specifically, on the basis of Embodiment 1, a group of suspension units are respectively added to the front half of the suspension frame 1 and the rear half of the suspension frame 1, and the center line of the suspension force of the suspension units added to the front half of the suspension frame 1 is located at the center of the suspension frame. At one quarter, the center line of the suspension force of the suspension unit added in the rear half of the suspension frame 1 is located at three quarters of the suspension frame.

The above-mentioned embodiments are merely examples and do not limit the scope of the present invention. These embodiments can also be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the scope of the technical idea of the present invention.

Claims (6)

1. a kind of medium-and low-speed maglev train suspension redundant system, the system include multigroup floating unit, which is characterized in that any one Group floating unit is at least configured at least one set of floating unit being mutually redundant, in the suspending power for the floating unit being mutually redundant Heart line is overlapped.

2. a kind of medium-and low-speed maglev train suspension redundant system according to claim 1, which is characterized in that any one group outstanding Floating unit configures one group of floating unit being mutually redundant.

3. a kind of medium-and low-speed maglev train suspension redundant system according to claim 2, which is characterized in that the system includes Four groups of floating units, wherein two groups are located at suspension rack first half, two groups latter half of positioned at suspension rack, suspension rack first half and suspension Two groups of latter half of floating units of frame are mutually redundant respectively.

4. a kind of medium-and low-speed maglev train suspension redundant system according to claim 3, which is characterized in that suspension rack first half The suspending power center line of two floating units in portion is at a quarter of suspension rack.

5. a kind of medium-and low-speed maglev train suspension redundant system according to claim 3, which is characterized in that suspension rack is later half The suspending power center line of two floating units in portion is at 3/4ths of suspension rack.

6. a kind of medium-and low-speed maglev train suspension redundant system according to claim 1, which is characterized in that every group of suspension list Member includes a suspension controller and two levitating electromagnet magnetic poles being connected in series with, levitating electromagnet magnetic pole connection To suspension controller.