CN104389265A - Buckle plate type track expansion adjusting structure of medium-low speed magnetic levitation transportation system - Google Patents
Buckle plate type track expansion adjusting structure of medium-low speed magnetic levitation transportation system Download PDFInfo
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- CN104389265A CN104389265A CN201410203097.6A CN201410203097A CN104389265A CN 104389265 A CN104389265 A CN 104389265A CN 201410203097 A CN201410203097 A CN 201410203097A CN 104389265 A CN104389265 A CN 104389265A
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- buckle
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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Abstract
The invention discloses a buckle plate type track expansion adjusting structure of a medium-low speed magnetic levitation transportation system for effectively relieving the driving problem caused by temperature difference expansion deformation of a large-span bridge. The structure comprises a rib plate type track panel, track bearing tables, cushion plates, foundation bolt components and buckle plates, wherein a main body of the rib plate type track panel consists of sleeper units longitudinally arranged at intervals, and two longitudinal connecting plates fixedly connecting the sleeper units into a whole and transversely arranged at intervals; rib plates are welded between the sleeper units and the longitudinal connecting plates; two lines of the track bearing tables are transversely arranged on a bridge body at intervals; the cushion plates are arranged between the top surfaces of the track bearing tables and the bottom surfaces of the longitudinal connecting plates; buckle plate fixing convex blocks are transversely arranged on the top surfaces of the cushion plates at intervals; the lower parts of the foundation bolt components are embedded and fixed in the bridge body; and the upper parts penetrate through the track bearing tables and the cushion plates to tightly press the buckle plates on the longitudinal connecting plates and the buckle plate fixing convex blocks.
Description
Technical field
The present invention relates to Rail Transit System, particularly a kind of medium-and low-speed maglev traffic system rail telescopic adjustment structure.
Background technology
Medium-and low-speed maglev track traffic adopts the attractive suspension of normal conducting magnetic iron and guiding technique, by the electromagnetic attraction between the U-shaped electromagnet on vehicle suspension frame and F shaped steel rail, realizes suspension and the guiding of vehicle.The medium-and low-speed maglev track structure of current domestic existing application, main employing steel tie pattern, track primarily of the part such as tablet, F rail, expansion coupling, connector and securing member, H profile steel sleeper, fastener system, railway roadbed composition, is that whole unit is mated formation with the section of track from top to bottom.F rail, steel tie and tablet are assembled into the section of track in factory or Assembling base, and the section of track is coupled together by F rail joint design at the scene, to ensure vertical, the horizontal temperature difference telescopic displacement regulated quantity longitudinally enough to neutralization of track.The design of F rail joint design need take into full account the characteristic of expanding with heat and contract with cold of magnetic levitation track, orbital forcing requires, the convenience of train stability sexual demand and operation maintenance, the key that the bonding strength of F rail joint design, stability and reliability are train safe, steadily and fast run.
Consider that medium-and low-speed maglev vehicle suspension control system feature and vehicle driving need, two sections of F rail rail gap size designs are restricted.In city-building industry standard CJ/T413-2012 " medium-and low-speed maglev traffic section of track general technical specifications ", define I type, II type and type III three kinds of F rail joints, but the rail gap stroke that it can bear also is limited, rail gap stroke excursion is only 10mm ~ 40mm.Existing joint design is the rail gap stroke adapting to two sections of F rails passively, fundamentally can not carry out active adjustment to rail gap stroke.Excessive rail gap stroke, can not meet vehicle driving demand, can not realize in the structure of existing F rail joint.
Domestic and international multiple mechanism all expands the design and researchp of medium-and low-speed maglev track structure, with Japan and Chinese research mechanism in the majority, but because the bridge span adopted at present is less, and beam type is generally simply supported beam or little span concrete continuous beam, research for the dilatation adjuster of medium-and low-speed maglev traffic route middle orbit does not also obtain enough attention, in domestic and international published technical data up to now, related introduction is not yet had to be suitable for the middle lower speed transportation systems rail telescopic adjuster device that long span bridge uses.Along with medium-and low-speed maglev traffic as a kind of new city system of rail traffic in big and medium-sized cities and the popularization gradually of tourist attraction, will in the face of the situation of varied leap river valley and city major road, therefore, for in Longspan Bridge situation, the design and researchp of medium-and low-speed maglev rail telescopic deformation adjustment is just extremely necessary.
At home existing dropped into actual tests line or operation line track structure in, because bridge span is less, the dilatation amount produced because of the temperature difference of bridge and track is also little, substantially, to control within 40mm, this, for vehicle suspension control system and rail joint design, can adapt to this deformation quantity.But, when bridge span increases, variations in temperature will cause the retractable variable of larger bridge, within the scope of design temperature deformation quantity can reach 200mm and more than, continue to use the current medium-and low-speed maglev section of track if continue and be fixed on the track restrained mode adopting general F rail joint to connect in bridge beam body, between the adjacent section of track by fastener, then strictly will limit bridge span in line design, affect the system suitability of medium-and low-speed maglev traffic on long span bridge, be unfavorable for applying of medium-and low-speed maglev technology.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure, effectively to alleviate the temperature difference dilatation of Longspan Bridge and the driving problem caused.
The technical solution adopted for the present invention to solve the technical problems is as follows:
Buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention, it is characterized in that it comprises: the reinforcing plate type section of track, the sleeper unit that its main body is arranged by longitudinal separation and to be fixed be horizontally arranged at interval two the longitudinal junction plates connected as one, each sleeper unit arranges gusset with welding between longitudinal junction plate; Track, be horizontally arranged at interval two row in bridge beam body; Backing plate, be arranged between each track end face and longitudinal junction plate bottom surface, its end face has the buckle be horizontally arranged at interval and fixes projection; Foundation bolt component and buckle, foot bolt assembly bottom is pre-buried to be fixed in bridge beam body, and track is passed on its top, buckle is pressed on longitudinal junction plate with backing plate and buckle is fixed on projection.
The invention has the beneficial effects as follows, greatly can reduce the circuit bearing of trend interaction force of bridge and track, improve the stress of track and bridge, effectively discharge the large dilatation that Longspan Bridge produces because of variations in temperature simultaneously, adapt to 40mm and above bridge large deformation; Rail gap can be kept to change unlikely excessive, the section of track that stable connection is adjacent, maintain circuit smooth-going, thus improve the system suitability of medium-and low-speed maglev traffic, guarantee the safety of vehicle, even running; Structure is simple, be convenient to install and processing, and is easy to safeguard, can greatly improve track laying efficiency, reduce investment and operation maintenance cost.
Accompanying drawing explanation
This manual comprises following seven width accompanying drawings:
Fig. 1 is the stereogram of buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention;
Fig. 2 is the left view of buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure embodiment 1 of the present invention;
The top view of Fig. 3 buckle type medium-and low-speed maglev of the present invention traffic system rail telescopic adjustment structure embodiment 1;
Fig. 4 is the stereogram of buckle in buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention;
Fig. 5 is the stereogram of the horizontal block of sleeper in buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention;
Fig. 6 is the stereogram of backing plate in buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention;
Fig. 7 is the stereogram of the reinforcing plate type section of track in buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention.
Component name shown in figure and corresponding mark: sleeper unit 11, installing hole 11a, longitudinal junction plate 12, gusset 13, foundation bolt component 20, track 21, backing plate 22, buckle fix projection 22a, stopper slot 22b, buckle 23, position limiting structure 23a, the horizontal block 24 of sleeper.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
With reference to Fig. 7, Fig. 1, Fig. 2 and Fig. 3, buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention comprises: the reinforcing plate type section of track, the sleeper unit 11 that its main body is arranged by longitudinal separation and be horizontally arranged at interval two the longitudinal junction plates 12 connected as one that are fixed, weld between each sleeper unit 11 with longitudinal junction plate 12 and arrange gusset 13; Track 21, be horizontally arranged at interval two row in bridge beam body; Backing plate 22, be arranged between each track 21 end face and longitudinal junction plate 12 bottom surface, its end face has the buckle be horizontally arranged at interval and fixes projection 22a; Foundation bolt component 20 and buckle 23, foundation bolt component 20 bottom is pre-buried to be fixed in bridge beam body, and track 21 is passed on its top, buckle 23 is pressed on longitudinal junction plate 12 with backing plate 22 and cross spacing buckle is fixed on projection 22b.
Because the retractable variable of bridge is determined by bridge material self-characteristic, deformation quantity can not be controlled from structure design, for this reason, for reducing the impact of bridge stroke on driving, can only consider, longitudinally discharging the flexible of bridge, to make it can have relative motion between track structure, thus need the way of restraint fundamentally changing operational railway structure, by the horizontal fixed constraint of existing bolt upper bottom single sleeper i shaped steel, change the constraint on reinforcing plate type section of track structure longitudinal beam into.
With reference to Fig. 7, the cross section of described sleeper unit 11 is I shape, and gusset 13 is symmetricly set in its both sides.Longitudinal two ends of sleeper unit 11 offer installing hole 11a, and F rail, by being detachably mounted on sleeper unit 11 through installing hole 11a bolt assembly, ensures, without relative motion between the section of track and F rail, to form rail module.
With reference to Fig. 1 and Fig. 6, the plane projection of described track 21, backing plate 22 is rectangle, below the gusset 13 of each sleeper unit 11, respectively arrange one group.On backing plate 22, the quantity of projection 22a fixed by buckle is two, and inner side, the outside that projection 22a lays respectively at longitudinal junction plate 12 fixed by these two buckles.Buckle is fixed between projection 22a and longitudinal junction plate 12 can arrange the horizontal block 24 of sleeper.With reference to Fig. 6, the top that projection 22a fixed by buckle has stopper slot 22b in the outer part, and the outside of buckle 23 then has the position limiting structure 23a adapted with stopper slot 22b.
The structure that buckle 23 is succinct and small size profile, be beneficial to track 21 and backing plate 22 size further reduces, and reduces investment and operation maintenance cost.Buckle 23 number and needed for the design of the buckle press that provides and longitudinal resistance, bottom the traction braking characteristic should passed through in conjunction with existing maglev vehicle, buckle material, profile, the section of track and the frictional behavior in carrier module Contact face and the intensity of section of track structure and bending resistance deformation characteristic and determine.
Some principles of the above buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure of the present invention that just explains through diagrams, be not the present invention to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the present invention applies for.
Claims (5)
1. buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure, it is characterized in that it comprises: the reinforcing plate type section of track, the sleeper unit (11) that its main body is arranged by longitudinal separation and be horizontally arranged at interval two the longitudinal junction plates (12) connected as one that are fixed, each sleeper unit (11) arranges gusset (13) with welding between longitudinal junction plate (12); Track (21), be horizontally arranged at interval two row in bridge beam body; Backing plate (22), is arranged between each track (21) end face and longitudinal junction plate (12) bottom surface, and its end face has the buckle be horizontally arranged at interval and fixes projection (22a); Foundation bolt component (20) and buckle (23), foundation bolt component (20) bottom is pre-buried to be fixed in bridge beam body, and track (21) is passed on its top, buckle (23) is pressed on longitudinal junction plate (12) with backing plate (22) and buckle is fixed on projection (22b).
2. buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure as claimed in claim 1, it is characterized in that: longitudinal two ends of described sleeper unit (11) offer installing hole (11a), F rail is detachably mounted on sleeper unit (11) by the bolt assembly through installing hole (11a).
3. buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure as claimed in claim 2, is characterized in that: the cross section of described sleeper unit (11) is I shape, and gusset (13) is symmetricly set in its both sides.
4. buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure as claimed in claim 3, it is characterized in that: the plane projection of described track (21), backing plate (22) is rectangle, respectively arrange one group in gusset (13) below of each sleeper unit (11); The quantity that projection (22a) fixed by the upper buckle of backing plate (22) is two, and inner side, the outside that projection (22a) lays respectively at longitudinal junction plate (12) fixed by these two buckles; Buckle is fixed between projection (22a) and longitudinal junction plate (12) and is provided with the horizontal block (24) of sleeper.
5. buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure as claimed in claim 3, it is characterized in that: the top that projection (22a) fixed by described buckle has stopper slot (22b) in the outer part, the outside of buckle (23) then has the position limiting structure (23a) adapted with stopper slot (22b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203097.6A CN104389265B (en) | 2014-05-14 | 2014-05-14 | Buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410203097.6A CN104389265B (en) | 2014-05-14 | 2014-05-14 | Buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure |
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| CN104389265A true CN104389265A (en) | 2015-03-04 |
| CN104389265B CN104389265B (en) | 2016-08-24 |
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| CN201410203097.6A Active CN104389265B (en) | 2014-05-14 | 2014-05-14 | Buckle type medium-and low-speed maglev traffic system rail telescopic adjustment structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024107A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | Medium-and low-speed maglev track girder big displacement telescopic device |
| CN109024105A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The hinged horizontal mobile device of medium-and low-speed maglev bridge big displacement telescopic device |
| CN109024106A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The stringer carriage of medium-and low-speed maglev bridge big displacement telescopic device |
| CN110158378A (en) * | 2019-05-12 | 2019-08-23 | 中铁二院工程集团有限责任公司 | Medium-and low-speed maglev variable rail gauge track structure |
| CN110952392A (en) * | 2019-12-01 | 2020-04-03 | 中铁二院工程集团有限责任公司 | Vibration-damping buckle-plate type magnetic suspension fastener system easy to maintain |
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| JP2007211416A (en) * | 2006-02-07 | 2007-08-23 | Kawada Industries Inc | Reinforcing member for steel floor slab, and reinforcing structure |
| CN101748688A (en) * | 2009-12-30 | 2010-06-23 | 洛阳双瑞橡塑科技有限公司 | Variable stiffness elastic support used for a ballastless track |
| JP2012036705A (en) * | 2010-08-11 | 2012-02-23 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Joint structure of crossed portion of steel plate deck rib, and bridge |
| CN102367649A (en) * | 2011-11-21 | 2012-03-07 | 长安大学 | Steel-wood combined bridge structure with pored steel plate connecting piece |
| CN203923904U (en) * | 2014-05-14 | 2014-11-05 | 中铁二院工程集团有限责任公司 | Low speed magnetic floating traffic system rail telescopic adjustment structure in buckle type |
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Patent Citations (5)
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| JP2007211416A (en) * | 2006-02-07 | 2007-08-23 | Kawada Industries Inc | Reinforcing member for steel floor slab, and reinforcing structure |
| CN101748688A (en) * | 2009-12-30 | 2010-06-23 | 洛阳双瑞橡塑科技有限公司 | Variable stiffness elastic support used for a ballastless track |
| JP2012036705A (en) * | 2010-08-11 | 2012-02-23 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Joint structure of crossed portion of steel plate deck rib, and bridge |
| CN102367649A (en) * | 2011-11-21 | 2012-03-07 | 长安大学 | Steel-wood combined bridge structure with pored steel plate connecting piece |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024107A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | Medium-and low-speed maglev track girder big displacement telescopic device |
| CN109024105A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The hinged horizontal mobile device of medium-and low-speed maglev bridge big displacement telescopic device |
| CN109024106A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The stringer carriage of medium-and low-speed maglev bridge big displacement telescopic device |
| CN109024106B (en) * | 2018-09-28 | 2024-03-15 | 中铁磁浮交通投资建设有限公司 | Longitudinal beam sliding device of medium-low speed magnetic levitation bridge large-displacement telescopic device |
| CN109024107B (en) * | 2018-09-28 | 2024-03-15 | 中铁磁浮交通投资建设有限公司 | Large displacement telescoping device of middle-low speed magnetic levitation track beam |
| CN109024105B (en) * | 2018-09-28 | 2024-03-15 | 中铁磁浮交通投资建设有限公司 | Hinged transverse moving device of middle-low speed magnetic levitation bridge large-displacement telescopic device |
| CN110158378A (en) * | 2019-05-12 | 2019-08-23 | 中铁二院工程集团有限责任公司 | Medium-and low-speed maglev variable rail gauge track structure |
| CN110158378B (en) * | 2019-05-12 | 2024-03-29 | 中铁二院工程集团有限责任公司 | Medium-low speed magnetic levitation track structure with variable track gauge |
| CN110952392A (en) * | 2019-12-01 | 2020-04-03 | 中铁二院工程集团有限责任公司 | Vibration-damping buckle-plate type magnetic suspension fastener system easy to maintain |
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