CN109228884B - Magnetic suspension train and suspension frame thereof - Google Patents
Magnetic suspension train and suspension frame thereof Download PDFInfo
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- CN109228884B CN109228884B CN201811183596.8A CN201811183596A CN109228884B CN 109228884 B CN109228884 B CN 109228884B CN 201811183596 A CN201811183596 A CN 201811183596A CN 109228884 B CN109228884 B CN 109228884B
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- suspension
- connecting rod
- cross beam
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- linear sliding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
- B60L13/06—Means to sense or control vehicle position or attitude with respect to railway
- B60L13/08—Means to sense or control vehicle position or attitude with respect to railway for the lateral position
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- Electromagnetism (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a suspension frame of a magnetic suspension train, which comprises two suspension modules arranged in parallel and linear sliding tables arranged at two ends of the suspension modules, wherein the two linear sliding tables at the same end of the two suspension modules are connected through a cross beam, and the two suspension modules can relatively rotate along any direction; any one cross beam is rotatably connected with a connecting rod, and a rotating shaft of the connecting rod is perpendicular to the extending direction of the cross beam; the both ends of connecting rod all are equipped with and extend and the piece roof beam that links to each other with the suspension module that corresponds separately along crossbeam length direction, and the piece roof beam inclines downwards along the direction of connecting rod both sides, and can follow arbitrary direction relative rotation for the suspension module. The sheet beam, the connecting rod, the cross beam and the linear sliding table of the suspension frame form a spatial four-bar mechanism, the sheet beam, the connecting rod and the cross beam are relatively independent, the rolling prevention and decoupling capabilities of the suspension frame are improved, and the curve passing capability is further improved. The invention also discloses a magnetic suspension train with the suspension frame.
Description
Technical Field
The invention relates to the technical field of magnetic suspension, in particular to a suspension frame of a magnetic suspension train. The invention also relates to a magnetic suspension train comprising the suspension frame.
Background
The suspension frame is the core technical part of the magnetic suspension train, has the functions of supporting and propelling the running of the train and can meet the decoupling requirement when the curve of the train passes through. Because the side rolling phenomenon usually occurs in the suspension running process of the train, the suspension clearance between the suspension module and the track is reduced during the side rolling; when the side rolling angle is large, the suspension module collides with the track, and then suspension collapse is caused, so that the side rolling phenomenon can bring great damage to the running and maintenance of the train, and the phenomenon needs to be eliminated or reduced by arranging an anti-rolling decoupling mechanism.
The anti-rolling decoupling mechanism of the existing maglev train suspension frame mainly comprises two groups of anti-rolling beams and two anti-rolling suspenders, a parallelogram structure is formed between the suspenders and the anti-rolling beams, on one hand, the anti-rolling of the suspension frame is realized, on the other hand, the elastic anti-rolling suspenders are adopted to enable the left suspension module and the right suspension module to have certain freedom degree, and the decoupling performance of the suspension frame is met. However, the decoupling capacity of the suspension frame is realized by sacrificing the anti-rolling performance, and the curve passing capacity of the magnetic-levitation train is limited due to the limited elasticity of the anti-rolling suspension rod.
In conclusion, how to solve the contradiction of the suspension frame in the anti-rolling and decoupling processes and improve the curve passing capacity of the train becomes a problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a suspension frame of a magnetic suspension train, which has better rolling prevention and decoupling performances. It is a further object of the invention to provide a magnetic levitation vehicle comprising a levitation chassis as described above, which has a better curve-passing capability.
In order to achieve the above object, the present invention provides a suspension frame of a maglev train, comprising two suspension modules arranged in parallel and used for moving along a track;
two ends of each of the two suspension modules are provided with a linear sliding table which is used for advancing along the running direction vertical to the suspension modules;
the two linear sliding tables at the same ends of the two suspension modules are connected through a cross beam, and the two suspension modules can rotate relatively in any direction;
any one of the cross beams is rotatably connected with a connecting rod, and a rotating shaft of the connecting rod is perpendicular to the extending direction of the cross beam;
the two ends of any connecting rod are respectively provided with a sheet beam which extends along the length direction of the cross beam and is connected with the suspension module correspondingly, all the sheet beams incline downwards along the direction of the connecting rod towards the two sides, and the connecting rod can rotate relatively along any direction relative to the suspension module.
Preferably, a cross beam seat is further arranged at the joint of the cross beam and the linear sliding table, and the cross beam is hinged to the cross beam seat through a joint ball bearing.
Preferably, the inner side surfaces of the two ends of the suspension module are respectively provided with a supporting arm, and the sheet beam is hinged to the supporting arms through a joint ball bearing.
Preferably, the joint ball bearings for connecting the sheet beam and the suspension module are two joint ball bearings which are collinear in the vertical direction.
Preferably, the middle part of the cross beam has a downwardly protruding flange provided with a mounting groove for receiving the connecting rod.
Preferably, the middle part of the connecting rod is provided with a pin, the flange is provided with a pin hole, and the connecting rod is rotatably connected with the cross beam through the pin.
Preferably, a damping piece is further arranged between the transverse sliding table and the suspension module.
Preferably, the shock absorbing member is embodied as an air spring.
The invention also provides a magnetic suspension train comprising the suspension frame.
Compared with the background art, the suspension frame of the magnetic suspension train provided by the invention has the advantages that the two linear sliding tables at the same ends of the two suspension modules are connected through the cross beam, wherein the advancing direction of the linear sliding tables is vertical to the running direction of the suspension modules; any cross beam is connected with a connecting rod in a rotating mode, a rotating shaft of the connecting rod is perpendicular to the length direction of the cross beam, sheet beams extending along the length direction of the cross beam are arranged at two ends of the connecting rod, and all the sheet beams are inclined downwards along the connecting rod towards the two sides.
Because the crossbeam can enough pull two suspension modules to rotate along arbitrary direction under the effect of sharp slip table, can adjust the distance between two suspension modules again, piece roof beam and connecting rod also can realize above-mentioned motion for the suspension module, realize decoupling zero promptly and anti-roll's purpose. Meanwhile, the sheet beams are connected together through the rotary connection between the connecting rods and the cross beams, so that the two groups of motion modules, namely the cross beams, the sheet beams and the connecting rods, are relatively independent and do not interfere with each other, the anti-rolling decoupling capacity is improved, and the purpose that a smaller curve radius passes through a curve can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a suspension frame of a magnetic levitation train provided by the invention;
FIG. 2 is an enlarged partial view of the suspension shown in FIG. 1;
fig. 3 is an enlarged view of a portion of the suspension shown in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of a suspension frame of a magnetic levitation train according to the present invention; FIG. 2 is an enlarged partial view of the suspension shown in FIG. 1; fig. 3 is a partially enlarged view of fig. 2.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a suspension of a magnetic levitation train according to the present invention.
The suspension frame of the magnetic suspension train comprises two suspension modules 8 which are parallel to each other and run along a track, wherein two ends of each of the two suspension modules 8 are respectively provided with a linear sliding table 6 which runs perpendicular to the running direction of the suspension module 8; the two cross beams 1 are respectively connected between the two linear sliding tables 6 at the same end of the two suspension modules 8, and the cross beams 1 can pull the two suspension modules 8 to rotate along any direction; each crossbeam 1 still rotates and is connected with connecting rod 3, and the rotation axis of connecting rod 3 is perpendicular to the length direction of crossbeam 1, also extension direction, all is connected with the piece roof beam 2 that extends along crossbeam 1 length direction at the both ends of connecting rod 3 and inclines downwards in this direction, and each piece roof beam 2 links to each other with its suspension module 8 that corresponds, and piece roof beam 2 also can drive suspension module 8 along arbitrary direction rotation with connecting rod 3.
It should be noted that, two crossbeams 1 are connected respectively between two straight line slip tables 6 at the same end of two suspension modules 8, mean that, when the initial position of installation, crossbeam 1 is perpendicular to the axial direction of suspension module 8, and two crossbeams 1 are parallel relatively to make two crossbeams 1, two suspension modules 8 present the rectangular distribution, nevertheless along with the train operation in-process crossbeam 1 takes place to deflect as required, in order to avoid suspension module 8 side roll or realize the decoupling purpose.
The specific point that the cross beam 1 or the plate beam 2 and the connecting rod 3 can pull the suspension module 8 to rotate along any direction is that in the running process, when the suspension module 8 generates a side rolling moment due to the difference of the suspension force of the inner pole and the outer pole of the suspension electromagnet or rolls because an air spring load supporting point and a vertical skid point are not in the same vertical plane, the cross beam 1 or the plate beam 2 and the connecting rod 3 can pull the suspension module 8 to rotate around the axis where the track is located, so that the friction and even collision between the suspension module 8 and the track due to the side rolling moment are avoided; when the suspension frame passes through the curve radius, the cross beam 1 or the plate beam 2 and the connecting rod 3 can pull the suspension module 8 to deflect around a horizontal axis and a vertical axis which are perpendicular to the track, so that the mass center and the rigidity center of the whole suspension frame are readjusted, and the coupling vibration is eliminated.
According to the suspension frame provided by the invention, the cross beam 1 is connected to the two suspension modules 8 through the linear sliding table 6, and the two suspension modules 8 can rotate relatively in any direction, so that the cross beam 1 can adjust the minimum vertical distance between the two suspension modules 8 to achieve the purpose of preventing side rolling, and can pull the two suspension modules 8 to achieve three-degree-of-freedom rotation, namely achieve the purpose of decoupling. The two sheet beams 2 and the connecting rod 3 positioned at the same end of the two suspension modules 8 can also realize the motion and realize the purposes of rolling prevention and decoupling, so the suspension frame has double functions of rolling prevention and decoupling, the connecting rod 3 is used as an intermediate body of the beam 1 and the sheet beams 2, is connected with the beam 1 as a rotating shaft and is in rotating connection with the sheet beams 2 in any direction, the double functions are relatively independent due to the improvement of the degree of freedom and the deformation range of the structure and cannot be restrained mutually, the rolling prevention decoupling capacity of the suspension frame is greatly improved, the radius of a curve which can be safely passed is also reduced along with the curve, and the suspension frame has stronger curve passing capacity.
In a specific embodiment, a cross beam seat 5 is further arranged at the joint of the cross beam 1 and the linear sliding table 6, and the cross beam 1 is hinged to the cross beam seat 5 through a joint ball bearing. Specifically, can install crossbeam seat 5 on sharp slip table 6 to set up joint ball bearing's bearing frame on crossbeam seat 5, make crossbeam seat 5 can follow the direction of travel motion of sharp slip table 6, connect crossbeam 1 in crossbeam seat 5 through joint ball bearing again, realize that crossbeam 1 pulls the rotation of suspension module 8 along arbitrary direction.
Furthermore, the inner side surfaces at the two ends of the suspension module are respectively provided with a supporting arm, and the connection between the sheet beam 2 and the supporting arms, namely the connection between the sheet beam 2 and the suspension module 8, is realized through a joint ball bearing.
The material of the bracket arm can be the same as that of the suspension module 8, and aluminum with a lighter material can be selected, so that the mass center and the rigidity center of the suspension module 8 are prevented from being greatly interfered by the bracket arm in the decoupling process, and the bracket arm made of aluminum is easy to process.
In order to enhance the effect between the sheet beam 2 and the suspension module 8, one side of the sheet beam 2 close to the suspension module 8 can be provided with two joint ball bearings, and the two joint ball bearings are collinear along the vertical direction. When the sheet beam 2 needs to prevent the suspension module 8 from rolling laterally, the sheet beam 2 uniformly acts on most area of the inner side wall of the suspension module 8 through the two joint ball bearings, and the pressure of a local stress part is reduced.
In consideration of the fact that large displacement can occur between the two suspension modules 8 in the decoupling process, a shock absorption piece can be arranged between the linear sliding table 6 and the suspension modules 8, and the stability of the suspension frame is improved.
Specifically, the damping piece can be an air spring 7, so that the overall weight of the suspension frame is reduced, and the flexibility of vehicle control can be improved.
Referring to fig. 2 and 3, the connection relationship between the cross beam 1 and the connecting rod 3 and the plate beam 2 is shown.
The middle part of the beam 1 is provided with a flange 11 protruding downwards, the flange 11 is provided with a mounting groove for mounting the connecting rod 3, the length direction of the mounting groove is parallel to the axial direction of the beam 1, and the connecting rod 3 is arranged in the mounting groove and forms a rotating center perpendicular to the axial direction of the beam 1 with the beam 1 through a pin 41.
The length of mounting groove is not less than the length of connecting rod 3, and has certain degree of depth, guarantees that connecting rod 3 has certain rotation space in the mounting groove. Since the connecting rods 3, the plate beams 2 and the cross beam 1 are symmetrically distributed along the axial direction of the cross beam 1 or the axial direction perpendicular to the cross beam 1, no interference factor is introduced into the decoupling process due to the structure.
Placing connecting rod 3 in the mounting groove can make a plurality of rotation centers be in the coplanar, be convenient for adjust the focus, be favorable to the space four-bar linkage that crossbeam 1, connecting rod 3 and piece roof beam 2 constitute to adjust the position of two suspension modules, realize the decoupling zero purpose of rolling prevention, reduced the installation degree of difficulty simultaneously.
Further, a pin hole 42 is formed in the flange 11, and the middle of the connecting rod 3 is connected with the middle of the cross beam 1 through a pin 41, that is, the connecting rod 3 is rotatably connected with the cross beam 1 in the same vertical plane through the pin 42. The connecting strength of the connecting rod 3 and the cross beam 1 is enhanced due to the large area of the flange 11 where the pin 41 is located, and meanwhile, the pin hole 42 does not generate large interference on the strength and the rigidity of the cross beam 1. Of course, the manner of rotationally connecting the link 3 and the beam 1 is not limited to the connection with the pin 41, and any connection manner that the link 3 can be rotated with respect to the beam 1 and the rotation axis of the link 3 is perpendicular to the longitudinal direction of the beam 1 may be used as the rotational connection in the present invention.
The invention also provides a magnetic suspension train comprising the suspension, and other devices of the train refer to the prior art, which is not described herein.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The magnetic suspension train and the suspension rack thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A suspension frame of a magnetic suspension train comprises two suspension modules (8) which are arranged in parallel and are used for moving along a track,
two ends of each of the two suspension modules (8) are respectively provided with a linear sliding table (6) which is used for advancing along the running direction vertical to the suspension modules (8);
the two linear sliding tables (6) positioned at the same ends of the two suspension modules (8) are connected through a cross beam (1), and the two suspension modules (8) can relatively rotate along any direction; it is characterized in that the preparation method is characterized in that,
any one of the cross beams (1) is rotatably connected with a connecting rod (3), and a rotating shaft of the connecting rod (3) is vertical to the extending direction of the cross beam (1);
both ends of any connecting rod (3) all are equipped with along the length direction extension of crossbeam (1), with respectively correspond piece roof beam (2) that suspension module (8) link to each other, all piece roof beam (2) are in along connecting rod (3) incline downwards towards the direction of both sides, just connecting rod (3) for suspension module (8) can follow arbitrary direction and rotate relatively.
2. The suspension frame as claimed in claim 1, wherein a cross beam seat (5) is further arranged at the joint of the cross beam (1) and the linear sliding table (6), and the cross beam (1) is hinged to the cross beam seat (5) through a joint ball bearing.
3. The suspension frame as claimed in claim 2, characterized in that the inner side surfaces of the two ends of the suspension module (8) are provided with supporting arms, and the plate beam (2) is hinged to the supporting arms through joint ball bearings.
4. Suspension frame according to claim 3, characterized in that the articulated ball bearings used to connect the lamella beams (2) with the suspension module (8) are in particular two vertically collinear articulated ball bearings.
5. A suspension according to any of claims 1-4, characterized in that the cross beam (1) has a downwardly projecting flange (11) in its middle, which flange (11) is provided with a mounting slot for receiving the link (3).
6. The suspension according to claim 5, characterized in that the connecting rod (3) is provided with a pin (41) in the middle, the flange (11) is provided with a pin hole (42), and the connecting rod (3) is rotatably connected with the cross beam (1) through the pin (41).
7. The suspension frame according to claim 6, characterized in that a shock absorber is arranged between the linear sliding table (6) and the suspension module (8).
8. Suspension frame according to claim 7, characterized in that the damping element is embodied as an air spring (7).
9. A magnetic levitation vehicle comprising a suspension as claimed in any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183596.8A CN109228884B (en) | 2018-10-11 | 2018-10-11 | Magnetic suspension train and suspension frame thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183596.8A CN109228884B (en) | 2018-10-11 | 2018-10-11 | Magnetic suspension train and suspension frame thereof |
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| Publication Number | Publication Date |
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| CN109228884A CN109228884A (en) | 2019-01-18 |
| CN109228884B true CN109228884B (en) | 2020-05-05 |
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| CN201811183596.8A Active CN109228884B (en) | 2018-10-11 | 2018-10-11 | Magnetic suspension train and suspension frame thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712662B (en) * | 2019-10-24 | 2020-12-29 | 中国人民解放军国防科技大学 | Anti-rolling decoupling mechanism of crossed magnetic suspension vehicle traveling unit |
| CN111397925B (en) * | 2020-03-23 | 2022-03-01 | 中国铁建重工集团股份有限公司 | Suspension frame test bed |
| CN111483326B (en) * | 2020-04-27 | 2023-06-02 | 中国人民解放军国防科技大学 | Small-side-roll suspension frame of medium-low-speed maglev train and maglev train |
| CN111824198B (en) * | 2020-07-13 | 2021-06-08 | 上海园菱机械实业有限公司 | Anti-side-tilting bogie of magnetic levitation vehicle and anti-side-tilting device thereof |
| CN112629845B (en) * | 2020-12-21 | 2024-05-03 | 西南交通大学 | Intensity test device of magnetic levitation vehicle suspension frame |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3931797A1 (en) * | 1989-09-23 | 1991-04-11 | Magnet Bahn Gmbh | FLOATING / CHASSIS WITH ACTUATOR-OPERATED AIR GAP CONTROL FOR THE M-RAIL SYSTEM |
| CN101062662A (en) * | 2007-06-01 | 2007-10-31 | 成都飞机工业（集团）有限责任公司 | F rail vehicle running mechanism |
| KR101208660B1 (en) * | 2010-12-01 | 2012-12-05 | 한국기계연구원 | Magnetic levitation conveyance system having enhaced curve driving performance |
| CN102991519B (en) * | 2012-11-30 | 2016-09-07 | 常州西南交通大学轨道交通研究院 | The running mechanism of middle low speed magnetic suspension vehicle |
| CN203793146U (en) * | 2014-03-06 | 2014-08-27 | 南车株洲电力机车有限公司 | Side rolling resisting device of medium and low speed magnetic-levitation train suspension frame |
| CN107599888B (en) * | 2017-08-03 | 2019-08-27 | 中车青岛四方机车车辆股份有限公司 | The suspension rack component of maglev vehicle |
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Address after: 410000 No. 1302, Laodong Road, Yuhua District, Changsha City, Hunan Province Patentee after: Hunan Rail Technology Application Research Center Co.,Ltd. Patentee after: National University of Defense Technology Address before: 410000 no.1302 Laodong Road, Yuhua District, Changsha City, Hunan Province Patentee before: HUNAN MAGLEV TECHNOLOGY RESEARCH CENTER Co.,Ltd. Patentee before: National University of Defense Technology |