CN105603836B - Oblique slot type jointing for F shaped steel rails - Google Patents
Oblique slot type jointing for F shaped steel rails Download PDFInfo
- Publication number
- CN105603836B CN105603836B CN201610145010.3A CN201610145010A CN105603836B CN 105603836 B CN105603836 B CN 105603836B CN 201610145010 A CN201610145010 A CN 201610145010A CN 105603836 B CN105603836 B CN 105603836B
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- Prior art keywords
- lug boss
- positive stop
- stop lug
- shaped steel
- wing plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of oblique slot type jointing for F shaped steel rails, including for being arranged at the lower connecting plate and positive stop lug boss of wing plate lower surface, wherein positive stop lug boss protrusion is arranged on the one side of lower connecting plate, and it is plane that it, which protrudes end surfaces,；F shaped steel rails wing plate is correspondingly arranged on the groove of the up/down perforation matched with positive stop lug boss one end respectively, the positive stop lug boss insertion being used for respect to the strip space that the groove between two wing plates and gap between the two are collectively forming on lower connecting plate, lower connecting plate and wing plate are connected through connecting hole by connector, it may be such that the positive stop lug boss passes through strip space and its protrusion end surfaces is concordant with wing plate upper surface, and side is contacted completely with the groove inwall on wing plate, and then realize the connection to F shaped steel rails.The jointing of the present invention can ensure that wheel does not depart from wing plate all the time, can avoid impact of the rail gap to road wheel completely, while without the decrease that extra highly difficult machining and intensity or performance are carried out to F shaped steel wing plates structure.
Description
Technical field
The invention belongs to medium-and low-speed maglev track structure technical field, and in particular to a kind of connection for F shaped steel rails connects
Head, suitable for the connection between the medium-and low-speed maglev track section of track.
Background technology
Medium-and low-speed maglev track traffic uses the attractive suspension of normal conducting magnetic iron and guiding technique, by vehicle suspension frame
U-shaped electromagnet and F shaped steel rail between electromagnetic attraction, realize suspension and the guiding of vehicle.Medium-and low-speed maglev track at present
Structure mainly uses steel tie pattern, and track mainly includes tablet, F shaped steel rails (also referred to as F rails), telescopic joint, company from top to bottom
The part such as fitting and fastener, steel tie, fastener system, track forms, and integrally mats formation using the section of track as unit.F shaped steel rails, steel
Sleeper and tablet are assembled into the section of track in factory or Assembling base, and the section of track is connected by F rails jointing.
To adapt to the section of track and infrastructure caused dilatation under temperature change, it is respectively provided between section of track F shaped steel rails
There is expansion joint, jointing is arranged on the expansion joint position between adjacent F shaped steel rails, and the joint design of F shaped steel rails needs to adapt to magnetic
The demand of characteristic of expanding with heat and contract with cold, the smooth-going of F rails, roadability and the operation maintenance of floating track etc., it is its bonding strength, steady
Qualitative and reliability is safe to train, steady and quick operation is most important.
F shaped steel rails joint is when connection is connected the section of track, to ensure that track is vertical, horizontal centering, and in longitudinal direction (along track
Direction) on enough temperature difference telescopic displacement regulated quantity, jointing is provided with lower attachment structure all under F shaped steel rail wing plates.Mesh
Before, attachment structure generally comprises wing plate lower connecting plate and connecting bolt under existing wing plate both at home and abroad, the attachment structure pass through by
The convex block insertion for being arranged on wing plate lower connecting plate is arranged on the limited impression of wing plate bottom surface to limit the transversion malposition between the section of track,
Train is improved under rescue mode by the stationarity at expansion joint by the way that the wing plate of F shaped steel rails is arranged into " ladder " type.
Such as a kind of medium-and low-speed maglev system F shaped steel rail attachment structures are disclosed in patent document CN104499385A, such as
Shown in Fig. 1-2, it includes wing plate lower connecting plate, clamping plate and outer leg side connecting plate, and the bottom surface of wing plate is provided with along circuit Longitudinal extending
Limited impression, wing plate lower connecting plate is provided with the convex block that is engaged with limited impression, while two wing plates can be " rank
Ladder " type connection.By the above-mentioned means, the dilatation at expansion joint can be adapted to preferably between can causing the section of track, lead to simultaneously
Cross wing plate step type be arranged such that its can strengthen cross spacing energy and lifted train under rescue mode wheel by stretching
Contract the stationarity stitched.But cross spacing lifting of the above-mentioned attachment structure to the section of track is still limited, particularly wherein wing plate is set
Cause wheel still to there is part to be located at gap position into " ladder " type, cause wheel stability still to have deficiency, and above-mentioned rank
Ladder " type structure needs to carry out track end face the machining of complicated shape, and must assure that the contact surface size essence of both ends guide rail
Really coordinate, its difficulty of processing is big, cost is high, installation effectiveness is low, and the difficult processing of F shaped steel rails can be significantly improved by not being suitable for excessive joint gap
Degree, it can also cause the huge waste of material.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of connection for F shaped steel rails to connect
Head, it is by docking header structure and being improved with the assembly method of F shaped steel rail wing plates, and to the wing plate connecting portion of F shaped steel rails
Position is accordingly optimized, so as to realize to the section of track of connection in accurate matching laterally and vertically and spacing, and in longitudinal direction
On be completely adapted to the dilatation of the section of track, and can ensure that wheel does not depart from wing plate all the time, rail gap pair can be avoided completely
The impact of road wheel, while carry out highly difficult machining and intensity or performance additionally without to F shaped steel wing plates structure
Decrease.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of oblique slot type for F shaped steel rails connects
Head, the wing plate for the F shaped steel rails to two adjacent section of track opposite end ends are attached, realize and expansion joint is provided between
The connection of the two adjacent sections of track, it is characterised in that the jointing includes：
For being arranged at the lower connecting plate of wing plate lower surface, multiple through holes are provided with as the connection being connected with wing plate
Hole；
Positive stop lug boss, its protrude be arranged on the lower connecting plate for the side surface that is contacted with wing plate to be connected
On, it is in strip and length direction along railway line direction, and the cross section of the positive stop lug boss is in up-narrow and down-wide trapezoidal；
Two relative ends of the F shaped steel rails wing plate to be connected are correspondingly arranged on and described positive stop lug boss one end respectively
The groove of the up/down perforation of matching, wherein the groove two side walls are inclined-plane, groove upper notch width is less than bottom notch
Width；
The edge that above-mentioned groove between two wing plates positioned opposite and the gap between two grooves are collectively forming
The strip space in railway line direction for the positive stop lug boss insert, by connector through the connecting hole can will be described under
Connecting plate is connected with wing plate, so as to may be such that the positive stop lug boss through the strip space and cause it to protrude end surfaces
It is concordant with wing plate upper surface, while its side is contacted completely with the groove inwall on wing plate, and then can be achieved to adjacent rail
Connect to the reliable spacing and smooth transition of row.
As present invention further optimization, the positive stop lug boss is being less than the strip along the length in railway line direction
The length in space so that it is suitable for the telescopic shape change of the section of track in this direction.
As present invention further optimization, width of the positive stop lug boss in track transverse direction and the strip space
Width Corresponding matching so that two sides of the positive stop lug boss in track transverse direction can the matching of corresponding with groove two walls connect
Touch, realize in this direction to the spacing of F shaped steel rails.
As present invention further optimization, the cross section of the positive stop lug boss is isosceles trapezoid.
As present invention further optimization, the center line weight of positive stop lug boss and the strip space in the longitudinal direction
Close, and preferably overlapped with train support wheel center line.
As present invention further optimization, the width in the in-orbit road transverse direction of protrusion end surfaces of the positive stop lug boss is less than
The width of train support wheel.
As present invention further optimization, the protruding end end face of the spacing preiection is plane, and it is after connection in place
It is concordant with wing plate plane so that the support wheel can be by the support of the positive stop lug boss and flat when by gap between two sections of track
Surely by so as to reducing the impact to support wheel.
As present invention further optimization, the connecting hole along railway line directional spreding at the both ends of lower connecting plate, it is excellent
Often end is two for choosing, and wing plate correspondence position to be connected is also corresponding is provided with hole, and both are realized for passing through connector respectively
Connection.
As present invention further optimization, the connecting hole is preferably slotted hole, and length direction is along railway line direction.
As present invention further optimization, the groove on wing plate be from wing plate end inwardly along stretch certain length and
Through the elongated slot through hole of wing plate upper and lower surface, its two side walls is the inclined-plane that matches with positive stop lug boss side, on two wing plates
Gap between groove and two wing plates forms the hole for accommodating the positive stop lug boss.
In general, by the contemplated above technical scheme of the present invention compared with prior art, have below beneficial to effect
Fruit：
(1) jointing of the invention is by the way that the positive stop lug boss of wing plate lower connecting plate to be completely embedded into the length of F shaped steel end
In slotted eye, and positive stop lug boss side contacts fit system with groove wall using wedge surface so that its stress in track transverse direction
Face greatly improves, and so as to greatly improve its cross spacing ability, can effectively prevent the transversion malposition of adjacent two F shaped steel；
(2) jointing of the invention by the positive stop lug boss of wing plate lower connecting plate by the wing plate of expansion joint both ends F shaped steel
Carry out " bridge joint ", wherein raised head face can be completely concordant with wing plate plane, it is ensured that when support wheel passes through expansion joint all the time
In contact condition, train is improved in the stationarity of rescue mode down train and the service life of support wheel；
(3) jointing of the invention by opening up groove, and the wall of inwall two respectively in two wing plate end faces to be connected
For inclined-plane, and with the space of section of track slit-shaped growth bar shaped between the two so that can be with embedding in the trapezoidal positive stop lug boss of strip
Enter wherein and hole in the longitudinal direction be present, so as to the dilatation in gap between the perfect adaptation section of track；
(4) jointing of the invention is only to need simply to process corresponding groove and connecting hole on wing plate, without entering
The complicated machining of row and Accuracy Matching, avoid " ladder " type of existing jointing wing plate from setting, not only connect more steady
It is fixed reliable, and processing and installation is reduced, the overall cost for carrying out the section of track is also reduced, while waste is reduced, also allow for repairing
Maintenance.
Brief description of the drawings
Fig. 1 is the connection diagram that a kind of F shaped steel rails of the prior art connect tieing；
Fig. 2 is connection diagram of the jointing under another visual angle in Fig. 1；
Fig. 3 is the structural decomposition diagram according to the connection tieing of one embodiment of the invention；
Fig. 4 is connection diagram of the connection tieing when connecting the wing plate of two F shaped steel rails in Fig. 3；
Fig. 5 is along the diagrammatic cross-section of A-A section parts in Fig. 4；
Fig. 6 is along the diagrammatic cross-section of B-B section parts in Fig. 4；
Fig. 7 is along the diagrammatic cross-section of C-C section parts in Fig. 4.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
According to the jointing of one embodiment of the invention, it is used for the connection of the adjacent section of track of medium-and low-speed maglev system, especially
It is the connection of the F shaped steel rails on two sections of track.To adapt to the section of track and infrastructure caused dilatation, rail under temperature change
Expansion joint is provided between row's F shaped steel rails, jointing is the expansion joint position being arranged between adjacent F shaped steel rails, for connecting
Two F shaped steel rails, as shown in figure 3, the jointing that connects through of two F shaped steel rails 3 connects respective wing plate realization.
As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, link slot is offered respectively at position to be connected on the wing plate of two F shaped steel rails 3
32, link slot 32 is the strip groove extended along railway line direction from wing plate end into wing plate, and penetrates wing plate upper and lower surface,
Form groove.Wherein, the two side walls of strip groove are inclined-plane so that under strip groove formation upper notch width is less than
The skewed slot of portion's width of rebate.
In one embodiment, one end that strip groove 32 is located inside wing plate is arc so that the strip groove
Referred to as half waist tilted slotted hole.But half waist is not limited to link slot 32 in the present invention, can be other shapes, such as positioned at the wing
One end of intralamellar part is plane, forms strip square hole, or the hole of other shapes.
In addition, the connecting portion on wing plate is provided with the connection for connection positioned at the periphery of strip groove 32
Hole, for jointing and wing plate 31 are connected.As shown in figure 3, in one embodiment, connecting hole is circular hole, excellent
Choosing is step circular hole, and the connecting hole on each wing plate 31 is two, and two in strip groove 32 are laterally respectively arranged along track
Side.But the shape and quantity of connecting hole are not limited in the present invention, can be specifically chosen according to the actual requirements, but preferably edge
Track cross direction profiles are in strip groove both sides.
As in Figure 3-5, jointing includes lower connecting plate 1, and it is preferably plate body structure, the side table of lower connecting plate 1
Strip boss 11 is provided with face (being upper surface in figure), it is fixedly connected with the upper surface of lower connecting plate 1, and preferably one
Body connects.The common shape of gap institute that boss 11 is used to insert between the F shaped steel rails 3 of strip groove 32 and two on two wing plates 3
Into the strip space along railway line direction in.
As the critical component in this connector, boss 11 is used to realize to the section of track or F shaped steel rails 3 in laterally and vertically side
To it is spacing and adapt to dilatation along railway line direction, while ensure that impact to vehicle support wheel is as small as possible, it is convex
The size and dimension of platform 11 has certain requirement.Specifically, boss 11 is the length that cross section is trapezoidal such as isosceles trapezoid
Bar shaped, wherein the width in the in-orbit road transverse direction of protrusion end surfaces away from lower connecting plate is less than relative other end face width.
In addition, length of the boss 11 along railway line direction is necessarily less than strip groove 32 on two relative wing plates 31 and both it
Between the length in strip space that is collectively forming along railway line direction of gap so that boss 11 can be on railway line direction
Relatively moved in the space, adapt to the needs of section of track dilatation.Meanwhile in order to be assembled with strip skewed slot, boss 11 is in-orbit
Width Corresponding matching of the width with the groove 32 on wing plate 31 in this direction in road transverse direction, e.g. boss two sides are with leading to
The matching contact of the internal face of groove two, so that boss 11 can carry out spacing to F shaped steel rails 3 in the horizontal, its horizontal stress surface is big
It is big to improve, its restraining ability and spacing reliability are greatly improved, can effectively prevent the dislocation of F shaped steel rails 3 in the horizontal.
In one embodiment, boss 11 is kept along the center line of the center line on railway line direction and strip space
On same vertical plane, while center line of the vehicle support wheel along railway line direction also is located in the plane.Particularly, boss
The end face of 11 protruding end should be consistent with the upper surface of wing plate 31, such as is plane, while height of projection should ensure that boss 11 is inserted
Enter in space and through behind the space, end face and the flush of wing plate 31 of protruding end so that vehicle support wheel can be smoothly
The contact end face of boss 11 simultaneously passes through, reduce as far as possible because between the section of track presence in gap and caused by impact or unstable
It is fixed.
In one embodiment, the width that boss 11 is protruded in the in-orbit road transverse direction of end surfaces is less than the width of vehicle support wheel
Degree.
It is in place that the lower connecting plate 1 of jointing is located on the surface of the homonymy of positive stop lug boss 11 (being upper surface shown in Fig. 3)
The periphery of positive stop lug boss 11 is provided with multiple through holes, as connecting hole 12 is installed, it is corresponding with the mounting hole 33 on wing plate 31 for it,
For making connector pass through so that joint to be fixedly connected with wing plate 31.In one embodiment, the upper surface of wing plate lower connecting plate 1
Surrounding is being provided with four installation connecting holes 12, each connecting hole 12 of installing is preferably waist hole.In one embodiment, use
In the connector of jointing and wing plate be bolt 2.
The shape of both ends of the surface is preferably to match with the strip groove end face of corresponding end positive stop lug boss 11 in the longitudinal direction,
In one embodiment, arcwall face is illustrated in figure 3, or plane or other shapes.Positive stop lug boss 11 is after connection in place
There is certain interval in its end face, with corresponding groove end face for the dilatation at expansion joint between the adaptation section of track.
Jointing in the present invention passes through corresponding groove 32 on the setting of above-mentioned positive stop lug boss 11 and corresponding wing plate 31
Open up, and combine corresponding size and combine and assembly relation, can to realize between the F shaped steel rails 3 of section of track part steady
Fixed reliable connection, progress is reliable spacing on laterally and vertically, and dilatation between the section of track is adapted on railway line direction,
And its supporting ＆ stablizing to vehicle support wheel, greatly reduce contact of the wheel with gap, substantially reduce the impact to wheel, make
Stationarity of the train under rescue mode is obtained to obtain increasing lifting.While above-mentioned jointing states function in realization, do not have
Particular/special requirement is proposed to the processing to F shaped steel rails 3 and precision, processing and installation is simple, and the machining and precision without complexity are matched somebody with somebody
Close, and structural strength does not reduce effectively, and waste of material can be greatly reduced.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (8)
1. a kind of oblique slot type jointing for F shaped steel rails, the F shaped steel rails for the opposite end end to the two adjacent sections of track
Wing plate (31) is attached, and realizes the connection for the two adjacent sections of track that expansion joint is provided between, it is characterised in that the oblique slot type
Jointing is inclined-plane groove formula jointing；The jointing includes：
For the lower connecting plate (1) of wing plate (31) bottom surface for being arranged at F shaped steel rails, be provided with multiple through holes as with it is described
The connecting hole (12) of wing plate (31) connection；
Positive stop lug boss (11), its protrude be arranged on the lower connecting plate (1) be used for contacted with wing plate (31) bottom surface to be connected
One side on, in strip and length direction along railway line direction, the cross section of the positive stop lug boss is in up-narrow and down-wide ladder for it
Shape；
Two relative ends of the wing plate (31) to be connected are correspondingly arranged on what is matched with described positive stop lug boss one end respectively
The groove (32) of up/down perforation, wherein the groove two side walls are inclined-plane, groove upper notch width is less than bottom slot opening
Degree；
Above-mentioned groove (32) between two wing plates (31) positioned opposite and the gap institute between two grooves (32) are common
The strip space of formation for the positive stop lug boss (11) insert, width of the positive stop lug boss (11) in track transverse direction with
The strip space width matching so that its in this direction to F shaped steel rails (3) carry out it is spacing, the positive stop lug boss and
The center line of strip space in the longitudinal direction is overlapped, and the connecting hole (12) is passed through by lower connecting plate (1) by connector
It is connected with two wing plates (31), so that the positive stop lug boss (11) is through the strip space and causes its protruding end table
Face is concordant with wing plate (31) upper surface, while makes positive stop lug boss (11) two sides and the inwall of groove (32) two on wing plate (31)
Matching contact, and then connect with realizing the reliable spacing and smooth transition to the adjacent section of track, the protrusion of the positive stop lug boss (11)
End end face is plane, i.e., the upper surface of described positive stop lug boss (11) is entirely plane, and it is after connection in place and wing plate (31) is flat
Face is concordant so that train support wheel is when by flexible gap between two sections of track by the support of the positive stop lug boss (11) and steady
By so as to reducing the impact to the train support wheel.
2. a kind of oblique slot type jointing for F shaped steel rails according to claim 1, wherein, the positive stop lug boss
(11) it is less than the length in the strip space in the length along railway line direction so that it is applicable section of track stretching in this direction
Contracting deformation.
3. a kind of oblique slot type jointing for F shaped steel rails according to any one of claim 1-2, wherein, it is described
The cross section of positive stop lug boss is isosceles trapezoid.
4. a kind of oblique slot type jointing for F shaped steel rails according to any one of claim 1-2, wherein, it is described
The center line of positive stop lug boss and strip space in the longitudinal direction overlaps with train support wheel center line.
5. a kind of oblique slot type jointing for F shaped steel rails according to any one of claim 1-2, wherein, it is described
Width of the positive stop lug boss (11) in track transverse direction is less than the width of train support wheel.
6. a kind of oblique slot type jointing for F shaped steel rails according to any one of claim 1-2, wherein, it is described
Connecting hole (12) is along railway line directional spreding at the both ends of lower connecting plate (1), and often end is two, and wing plate to be connected (31) is corresponding
Position is also accordingly provided with hole (33), for realizing both connections by connector respectively.
7. a kind of oblique slot type jointing for F shaped steel rails according to any one of claim 1-2, wherein, wing plate
(31) groove (32) on is that edge stretches certain length and through wing plate (31) upper and lower surface inwardly from wing plate (31) end
Elongated slot through hole, the gap between groove (32) and two wing plates on two wing plates (31), which is formed, described to be used to accommodate the positive stop lug boss
(11) hole.
8. a kind of track for medium-and low-speed maglev system, wherein, by claim 1-7 between each section of track of the track
The oblique slot type jointing for F shaped steel rails described in any one is attached.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145010.3A CN105603836B (en) | 2016-03-14 | 2016-03-14 | Oblique slot type jointing for F shaped steel rails |
| PCT/CN2017/076407 WO2017157257A1 (en) | 2016-03-14 | 2017-03-13 | Connecting joint for f-shaped steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145010.3A CN105603836B (en) | 2016-03-14 | 2016-03-14 | Oblique slot type jointing for F shaped steel rails |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105603836A CN105603836A (en) | 2016-05-25 |
| CN105603836B true CN105603836B (en) | 2017-12-22 |
Family
ID=55984147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610145010.3A Active CN105603836B (en) | 2016-03-14 | 2016-03-14 | Oblique slot type jointing for F shaped steel rails |
Country Status (1)
| Country | Link |
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| CN (1) | CN105603836B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017157257A1 (en) * | 2016-03-14 | 2017-09-21 | 中铁第四勘察设计院集团有限公司 | Connecting joint for f-shaped steel rail |
| CN106120489B (en) * | 2016-07-04 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | With the medium-and low-speed maglev track for ensureing the continuous section of track attachment means of signal acquisition |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3858074B2 (en) * | 1996-09-13 | 2006-12-13 | 中部エイチ・エス・エス・ティ開発株式会社 | Suction type magnetic levitation rail |
| JP3966722B2 (en) * | 2001-12-13 | 2007-08-29 | トピー工業株式会社 | Magnetically levitated linear motor car track |
| CN202509345U (en) * | 2012-02-09 | 2012-10-31 | 莱芜美澳冶金科技有限公司 | Track panel connection section |
| CN202509346U (en) * | 2012-03-31 | 2012-10-31 | 姬生永 | Track panel connecting structure for medium-low-speed maglev train |
| CN102587229B (en) * | 2012-04-10 | 2013-11-27 | 莱芜美澳冶金科技有限公司 | Joint for track panel and manufacturing and installing method |
| KR101359725B1 (en) * | 2012-09-13 | 2014-02-10 | 한국기계연구원 | Combined rail and girder structure for maglev system |
| CN103966928B (en) * | 2014-05-14 | 2016-03-16 | 中铁二院工程集团有限责任公司 | A kind of medium-and low-speed maglev system track F rail joint design |
| CN204849496U (en) * | 2015-06-17 | 2015-12-09 | 南车株洲电力机车有限公司 | Maglev train track section of track connects |
| CN205603983U (en) * | 2016-03-14 | 2016-09-28 | 中铁第四勘察设计院集团有限公司 | A chute formula attach fitting for F shaped steel rail |
-
2016
- 2016-03-14 CN CN201610145010.3A patent/CN105603836B/en active Active
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| CN105603836A (en) | 2016-05-25 |
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