CN109024107A - Medium-and low-speed maglev track girder big displacement telescopic device - Google Patents
Medium-and low-speed maglev track girder big displacement telescopic device Download PDFInfo
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- CN109024107A CN109024107A CN201811141810.3A CN201811141810A CN109024107A CN 109024107 A CN109024107 A CN 109024107A CN 201811141810 A CN201811141810 A CN 201811141810A CN 109024107 A CN109024107 A CN 109024107A
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- 239000000203 mixture Substances 0.000 claims description 4
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- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 210000001145 finger joint Anatomy 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- E01B25/305—Rails or supporting constructions
-
- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Architecture (AREA)
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- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention discloses a kind of medium-and low-speed maglev track girder big displacement telescopic devices, sew on across the beam that medium-and low-speed maglev rail traffic track girder is arranged in；In the back of two beam-ends of adjacent orbit beam, end section of track structure and telescopic device support are respectively set；Freely-supported stringer is set between telescopic device support, and one end is rotatable, the other end is rotatable and sliding；The upper end of freely-supported stringer is slidably provided with the flexible section of track of modularization by stringer carriage；The flexible section of track of modularization includes several section of track subelements；The track girder and end section of track structure of section of track subelement are provided with horizontal mobile device；Linkage is provided between adjacent two sections of track subelement and between the section of track structure of end, linkage both ends connect horizontal mobile device.The present invention solves the problems, such as that I type, II type, III type F rail expansion joint do not adapt to track girder big displacement and stretch, and the big displacement suitable for large span track girder or long connection continuous track beam is flexible.
Description
Technical field
The invention belongs to medium-and low-speed maglev field of track traffic, and in particular to a kind of medium-and low-speed maglev track girder big displacement is stretched
Compression apparatus.
Background technique
Medium-and low-speed maglev rail 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 the suspension and guiding of vehicle.Medium-and low-speed maglev track at present
Girder construction and track structure are divided into two parts, and track structure is layed in the top of concrete track beam, track beam structure of first constructing,
Then it constructs on track girder track structure, medium-and low-speed maglev traffic adapts to track girder using seamed track, track structure is stretched
Contracting.
The conventional seamed rail joint of medium-and low-speed maglev traffic (including I type, II type, III type expansion joint) at present, still
These expansion joints only adapt to the stroke of very little with biggish structure.
The wheel tracks traffic such as existing high-speed railway, urban track traffic, inter-city passenger rail also has large displacement expansion joint, commonly referred to as
Rail temperature expansion and cotraction regulator, the extension adjustment device only can be suitably used for wheel rail system, not applicable for medium-and low-speed maglev traffic.
Existing highway, urban road Longspan Bridge have corresponding large displacement expansion joint, common highway bridge big displacement
It is flexible to be sewed with finger joint type expansion joint or modulus type expansion joint.Finger joint type expansion joint can not be applied to big displacement on medium-and low-speed maglev bridge
Telescopic device, modulus type expansion joint stretches to adapt to big displacement and stretch by multiple tracks small gap, but needs to do much deep
Improvements and changes are to adapt to a series of features of medium-and low-speed maglev traffic.
Cross-saddle single-track traffic also has the telescopic device for adapting to bridge big displacement stroke, generally flexible using finger joint type
Seam can not equally be applied to big displacement telescopic device on medium-and low-speed maglev bridge.
Different using continuous welded rail track structure from wheel rail system rail traffic, the track structure of medium-and low-speed maglev traffic is equal at present
Using seamed track structure, when track beam structure is when the beam-ends of adjacent two hole beam occurs flexible, pass through seamed rail joint portion
The big minor adjustment in position gap adapts to the flexible of track girder, and when track girder dilatation, track structure is not subject to additional horizontal force.
But the seamed rail joint of medium-and low-speed maglev traffic (including I type, II type, III type expansion joint) conventional at present only adapts to very
Small stroke can not adapt to track for large span track girder or the longer medium and small span track girder of continuous length
The big displacement of beam is flexible.
Medium-and low-speed maglev traffic I type expansion joint only adapts to the stroke of maximum ± 20mm, this one small stroke is only
Adapt to the freely supported structure track beam structure deformation needs of conventional criteria 20m~30m span；II type of medium-and low-speed maglev traffic is flexible
Connector only adapts to the stroke of maximum ± 40mm, can only adapt to the track beam structure that continuous length is less than 150m；Middle low speed magnetic
Floating III type expansion joint of traffic only adapts to the stroke of maximum ± 60mm, can only adapt to the track girder that continuous length is less than 250m
Structure.
Currently, the Simple Rail Bearer structure of conventional criteria 20m~30m span is for save the cost, track generally thereon
Connector uses I type joint, but since the expansion joint of I type only adapts to the stroke of maximum ± 20mm, deducts track girder top
The stroke of structure ± 10mm under the action of mobile load, temperature effect, then maximum of the track girder bridge pier in least favorable load action
Length travel should be less than 10mm, this limitation is so that the bridge pier of medium-and low-speed maglev traffic is designed very coarse, no in high pier
It is economical.Similarly there is the very low problem of bridge pier linear deformation limit value for the track girder using II type, III type expansion joint, finally
Cause medium-and low-speed maglev bridge pier to generally require and be designed very coarse, bridge pier is uneconomical, can not play medium-and low-speed maglev traffic and adopt
With the advantage of seamed track, need the telescopic device of more big displacement quantity that bridge pier is allowed to have bigger linear deformation.
It is (porous for Longspan Bridge (arch bridge, cable-stayed bridge, suspension bridge) or the longer medium and small span bridge of continuous length
One continuous beam) expansion amount at the tip of the girder up to hundreds of millimeters, even up to 1000~2000mm sometimes, so big is flexible
Amount, current I type, II type, III type expansion joint are clearly to be unable to reach.
Summary of the invention
For at least one of prior art the above defects or improvement requirements, the present invention provides a kind of medium-and low-speed maglevs
Track girder big displacement telescopic device, the present invention solves I type, II type, III type F rail expansion joint do not adapt to track girder big displacement
Flexible problem, the big displacement suitable for large span track girder or long connection continuous track beam are flexible.
To achieve the above object, according to one aspect of the present invention, a kind of medium-and low-speed maglev track girder big displacement is provided
Telescopic device, the big displacement telescopic device are sewed on across the beam that medium-and low-speed maglev rail traffic track girder is arranged in；
In the back of two beam-ends of adjacent orbit beam, end section of track structure and telescopic device support are respectively set；
Freely-supported stringer is set between corresponding two telescopic device supports, and one end of the freely-supported stringer has
The other end of rotational freedom, fricton-tight freedom degree, the freely-supported stringer has rotational freedom and track girder longitudinal direction
Free sliding degree；
The upper end of the freely-supported stringer is slidably provided with the flexible section of track of modularization by stringer carriage；
The flexible section of track of the modularization includes several section of track subelements along the arrangement of track girder longitudinal direction；
The track girder longitudinal direction two sides of the section of track subelement and the end section of track structure stitch side towards beam,
It is provided with horizontal mobile device；
Between the section of track subelement of adjacent two, and the section of track subelement and the end rail at longitudinal both ends
It arranges between structure, is provided with linkage, the both ends of the linkage connect the horizontal mobile device.
Preferably, the section of track subelement includes F rail, crossbeam；
The F rail is mounted on longitudinal both ends of the crossbeam, is aligned with the F rail of the end section of track structure.
Preferably, one end of the freely-supported stringer is equipped with round hole, passes through the rotation axis branch of the telescopic device support
Support is on the telescopic device support and can rotate around the rotation axis of hinged-support；The other end of the freely-supported stringer is equipped with length
Round hole is supported on the telescopic device support of the other end and can be rotated by the rotation axis of the telescopic device support
Moving axis rotation can also vertically move simultaneously along the oblong hole.
Preferably, the freely-supported stringer upper limb is equipped with longitudinal chute, and the longitudinal chute is by longitudinal rail, longitudinal rail
Lower slide plate built in built-in upper slide plate, longitudinal rail forms, and the length of the longitudinal chute and the longitudinal direction of freely-supported stringer are long
Spend identical, upper slide plate built in longitudinal rail is mounted in the inside of longitudinal rail, and lower slide plate built in longitudinal rail is mounted in letter
The upper limb of branch stringer forms a semi-enclosed longitudinal chute.
Preferably, the stringer carriage includes longitudinal sliding block, and the longitudinal sliding block is fixed on each section of track subelement
Lower end, the setting position of the longitudinal sliding block is corresponding with the position of the freely-supported stringer, also, the longitudinal sliding block is in
Inverted T-shaped section, lower edge inlay card is in the longitudinal chute, so that the longitudinal sliding block can be in the longitudinal chute along rail
Road beam longitudinal sliding motion.
Preferably, the horizontal mobile device includes double hinge transverse slides；
The crossbeam offers the through hole of track girder longitudinal direction, and double hinge transverse slides are provided in hole；
Double hinge transverse slides are had the sliding sleeve group of bilateral rotating hinge by a center sliding axle and one
It is longitudinally the fixed setting of track girder transverse direction along crossbeam at, center sliding axle, the sliding sleeve with bilateral rotating hinge can be with
Along center, sliding axis direction is free to slide.
Preferably, the horizontal mobile device includes single hinge transverse slide；
The through hole of track girder longitudinal direction is offered on the web of the crossbeam of the end section of track structure, is provided in hole
Single hinge transverse slide；
Single hinge transverse slide is by a center sliding axle and a sliding sleeve group with unilateral rotating hinge
At center sliding axle is longitudinally the fixed setting of track girder transverse direction along crossbeam, and the sliding sleeve with unilateral rotating hinge is located at
Towards track girder beam seam side, can along center slide axis direction it is free to slide.
Preferably, the linkage includes several X-shaped connecting rods；
The X-shaped connecting rod rotates the rotation axis of limb, X-shaped connecting rod by the inside rotation limb of X-shaped connecting rod, the outside of X-shaped connecting rod
Composition；
The middle part of the inside rotation limb of the X-shaped connecting rod is single pole shape, and the middle part of the outside rotation limb of the X-shaped connecting rod is
Double rod shape has the space for accommodating single pole rotation between double rod；The inside of the X-shaped connecting rod rotates the outer sidespin of limb, X-shaped connecting rod
Turning limb can rotate freely around the rotation axis for the X-shaped connecting rod for being located at the two cross-point locations；
The inside rotation limb of the X-shaped connecting rod, the both ends of the outside rotation limb of X-shaped connecting rod are hingedly connected to the laterally shifting
Dynamic device, specifically, be articulated in the sliding sleeve with bilateral rotating hinge of double hinge transverse slides one or
The sliding sleeve with unilateral rotating hinge of single hinge transverse slide.
Preferably, the telescopic device support includes the base plate of hinged-support, the vertical supporting plate of hinged-support, hinged-support
Rotation axis；The rotation axis of the hinged-support is arranged between the vertical supporting plate of two hinged-supports.
Preferably, between the crossbeam of the two neighboring section of track subelement and the crossbeam and rail of the section of track subelement
Between the crossbeam of the end section of track structure of road beam, it is provided with waterproof soft board, the waterproof soft board is in track girder transverse direction
The upper limb of the equal length of the crossbeam of length and the section of track subelement, the waterproof soft board and crossbeam links together.
Above-mentioned preferred feature can be combined with each other as long as they do not conflict with each other.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
1, the present invention solves the problems, such as that I type, II type, III type F rail expansion joint do not adapt to track girder big displacement and stretch,
Big displacement suitable for large span track girder or long connection continuous track beam is flexible.
2, the present invention passes through the unique construction of hinged-support and multiple degrees of freedom freely-supported stringer, crosses over track using freely-supported stringer
Beam seam between beam, is realized by the oblong hole of freely-supported stringer and is stretched on a large scale, while hinged-support is that freely-supported stringer mentions
Supplied rotational freedom so that freely-supported stringer be adapted to the vehicle active load of track, temperature change, track girder length travel,
Dilatation under the various workings such as track girder flexing deformation.
3, the present invention passes through the unique construction of stringer carriage and stringer top, and match each other cooperation, realizes module
Change being connected and fixed for the section of track subelement of the section of track to slide with smooth, has ensured that the travel safety at beam seam and a wide range of stretch become
Shape.
4, the present invention by modularization stretch the section of track unique construction, modularization stretch the section of track each section of track subelement with
The end section of track structure of track girder uses substantially similar structure, using a large amount of universal architecture, such as F rail, crossbeam, so that
Structure is simple, manufacture easy to process, each section of track subelement can independent telescope deformation, can be within the scope of shorter structure length
Realize bigger length travel stroke.
5, the present invention is realized by linkage (especially X-shaped connecting rod) and transverse slide by track girder generation
Biggish length travel is distributed to automatically on the gap variable quantity between each section of track subelement, and adapting to medium-and low-speed maglev traffic has
Stitch the structural requirement of track.
6, for the present invention by horizontal mobile device, especially double hinge transverse slides are only with single hinge transverse slide
Spy's construction, had not only realized effective connection of section of track subelement inside the modularization section of track, but also by the longitudinal sliding motion of section of track subelement
It is converted into and slides laterally, and this structure makes conversion range big, telescopic adjustment amount has been turned up.
7, the present invention passes through the unique construction of waterproof soft board, crossbeam upper limb is disposed at, between section of track subelement
Small-sized expansion joint is protected, and prevents chance water, Shi Sha etc. from falling into inside telescopic device.
8, after applying the present invention, the bridge pier of medium-and low-speed maglev track girder can occur bigger in the range of intensity requirement
Pier top length travel saves the investment of medium-and low-speed maglev track girder substructure so as to reduce pier section size.
Detailed description of the invention
Fig. 1 is the medium-and low-speed maglev track girder big displacement telescopic device elevation according to one embodiment of the invention；
Fig. 2 is the diagrammatic cross-section in Fig. 1 along 1-1 section part；
Fig. 3 is the diagrammatic cross-section in Fig. 1 along 2-2 section part；
Fig. 4 is the diagrammatic cross-section in Fig. 1 along 3-3 section part；
Fig. 5 is the diagrammatic cross-section in Fig. 1 along 4-4 section part；
Fig. 6 is the diagrammatic cross-section in Fig. 1 along 5-5 section part；
Fig. 7 is the diagrammatic cross-section in Fig. 1 along 6-6 section part；
Fig. 8 is the diagrammatic cross-section in Fig. 1 along 7-7 section part；
Fig. 9 is the diagrammatic cross-section in Fig. 1 along 8-8 section part；
Figure 10 is the diagrammatic cross-section in Fig. 1 along 9-9 section part；
Figure 11 is the diagrammatic cross-section in Fig. 5 along 10-10 section part；
Figure 12 is the diagrammatic cross-section in Fig. 5 along 11-11 section part；
Figure 13 is the diagrammatic cross-section in Fig. 5 along 12-12 section part；
Figure 14 is the diagrammatic cross-section in Fig. 5 along 13-13 section part；
Figure 15 is the diagrammatic cross-section in Fig. 5 along 14-14 section part；
Figure 16 is the a-quadrant part drawing in Fig. 6；
Figure 17 is the drawing of the X-shaped connecting rod in Fig. 7；
Figure 18 is the drawing of single hinge transverse slide；
Figure 19 is double hinge transverse slide drawings.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
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 the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.The present invention is described in more detail With reference to embodiment.
As shown in figures 1-19, medium-and low-speed maglev track girder big displacement telescopic device of the invention, the flexible dress of the big displacement
It sets across the beam that medium-and low-speed maglev rail traffic track girder 11 is arranged in and sews on；It is each in the back of 11 two beam-ends of adjacent orbit beam
End section of track structure and telescopic device support are set；Freely-supported stringer is set between corresponding two telescopic device supports
18, one end of the freely-supported stringer 18 has rotational freedom, fricton-tight freedom degree, the other end of the freely-supported stringer 18
Free sliding degree with rotational freedom and track girder longitudinal direction；It is slided by stringer the upper end of the freely-supported stringer 18
Device is slidably provided with the flexible section of track of modularization；The flexible section of track of the modularization includes arranging along track girder longitudinal direction
Several section of track subelements；The track girder longitudinal direction two sides of the section of track subelement and the end section of track structure direction
Beam stitches side, is provided with horizontal mobile device；Between the section of track subelement of adjacent two, and longitudinal both ends is described
Between section of track subelement and the end section of track structure, it is provided with linkage, described in the both ends connection of the linkage
Horizontal mobile device.The present invention solves I type, II type, III type F rail expansion joint do not adapt to that track girder big displacement is flexible to ask
Topic, the big displacement suitable for large span track girder or long connection continuous track beam are flexible.After applying the present invention, medium-and low-speed maglev rail
Bigger pier top length travel can occur in the range of intensity requirement for the bridge pier of road beam, so as to reduce pier section ruler
It is very little, save the investment of medium-and low-speed maglev track girder substructure.
As shown in Fig. 1~10, hinged-support is respectively set in the back of the two neighboring beam-ends of track girder 11, each beam-ends is laterally set
Setting several embodiments is 2, can be 2, is also possible to 3 or more, with specific reference to track girder top plate width and knot
Structure stress needs to be arranged.Base plate 14 of each described hinged-support by hinged-support, the vertical supporting plate 15 of hinged-support, hinged-support
Rotation axis 16, hinged-support rotation axis prevent that traversing nut 17 is constituted, base plate 14 and the 2 piece hinged-support of one piece of hinged-support erects
Connected to support plate 15 it is integral, the rotation axis 16 of hinged-support can in the round hole in the vertical supporting plate 15 of hinged-support from
By rotating, hinged-support rotation axis prevents that the both ends of the rotation axis 16 of hinged-support are arranged in traversing nut 17.11 beam of track girder
Stitch the hinged-support at both ends in longitudinal distance according to the stroke of telescopic device and construction it needs to be determined that.
Freely-supported stringer 18 passes through the hinged-support freely-supported on the two neighboring beam-ends of track girder 11, freely-supported stringer 18
One end be equipped with round hole, be supported on hinged-support by the rotation axis 16 of hinged-support and can be around 16 turns of rotation axis of hinged-support
It is dynamic；The other end of freely-supported stringer 18 is equipped with oblong hole, and the hinged-support of the other end is supported on by the rotation axis 16 of hinged-support
Above and it can rotate while can also be vertically moved along the rotation axis 16 of hinged-support around the rotation axis 16 of hinged-support, each hinged-support
Rotation axis 16 both ends one hinged-support rotation axis is respectively set prevent traversing nut 17.The setting position of freely-supported stringer 18 with
The position of the hinged-support is corresponding, and it is 2 that several embodiments are laterally arranged along track girder for freely-supported stringer 18, can be
2, it is also possible to 3 or more, needs to be arranged with specific reference to track girder top plate width and structure stress.The present invention passes through hinged
The unique construction of seat and multiple degrees of freedom freely-supported stringer is stitched using freely-supported stringer across the beam between track girder, small by freely-supported
The oblong hole of stringer is realized stretches on a large scale, while hinged-support provides rotational freedom for freely-supported stringer, so that freely-supported
Stringer is adapted to the various workings such as vehicle active load, temperature change, track girder length travel, the deformation of track girder flexing of track
Under dilatation.
As shown in Fig. 1~10, each 18 upper limb of freely-supported stringer is equipped with longitudinal chute, and the longitudinal chute is by longitudinally leading
Upper slide plate 21 built in rail 19, longitudinal rail, lower slide plate 22 built in longitudinal rail form, the length and letter of the longitudinal chute
The longitudinal length of branch stringer 18 is identical, and upper slide plate 21 is mounted in the inside of longitudinal rail 19 built in longitudinal rail, longitudinally leads
Lower slide plate 22 built in rail is mounted in the upper limb of freely-supported stringer 18, forms a semi-enclosed longitudinal chute, in longitudinal rail
It sets built in upper slide plate 21, longitudinal rail lower slide plate 22 and is rubbed using tetrafluoro slide plate or other low slidings and examine coefficient material and be made.
Longitudinal chute part full-page proof is detailed in Figure 16.
As shown in Fig. 1~10, the longitudinal chute is equipped with several section of track subelements, is provided with 8 in the present embodiment
It is a.Each stating section of track subelement includes F rail 1, crossbeam 2, bolt 3, outside stiffener 8, inside stiffener 9, longitudinal sliding block device,
The F rail 1 is mounted on longitudinal direction (i.e. the transverse direction of track girder) both ends of the crossbeam 2, is aligned with the F rail 1 of the end section of track structure.
The number for the section of track subelement being arranged on the freely-supported stringer 18 can be 1, be also possible to multiple, and number is specifically arranged
Amount is determined according to the stroke of telescopic device.Along track girder longitudinal direction, there is certain gap between two neighboring section of track subelement, it should
The size in gap is longitudinal maximum slippage of the single section of track subelement.For each section of track subelement, F rail 1
By bolt 3 bolt on crossbeam 2, crossbeam 2 can use i shaped cross section, can also using H-type section, box-type section or
Other sections.The present invention by modularization stretch the section of track unique construction, modularization stretch the section of track each section of track subelement with
The end section of track structure of track girder uses substantially similar structure, using a large amount of universal architecture, such as F rail, crossbeam, so that
Structure is simple, manufacture easy to process, each section of track subelement can independent telescope deformation, can be within the scope of shorter structure length
Realize bigger length travel stroke.
The stringer carriage includes longitudinal sliding block 20, and the longitudinal sliding block 20 is fixed under each section of track subelement
End, the setting position of the longitudinal sliding block 20 is corresponding with the position of the freely-supported stringer 18, also, the longitudinal sliding block 20
In inverted T-shaped section, lower edge inlay card is in the longitudinal chute, so that the longitudinal sliding block 20 can be in the longitudinal chute
Along track girder longitudinal sliding motion.Specifically, 2 lower edge of crossbeam connects longitudinal sliding block 20, and the setting position of longitudinal sliding block 20 and freely-supported are small
The position of stringer 18 is corresponding, and lower slide plate 22 built in the lower edge and longitudinal rail of longitudinal sliding block 20 is closely connected, longitudinal sliding block 20
Upper limb and upper slide plate 21 built in longitudinal rail are closely connected, and longitudinal sliding block 20 can be on top built in longitudinal rail 19, longitudinal rail
Along vertical bridge to sliding in the longitudinal chute that lower slide plate 22 built in slide plate 21, longitudinal rail forms.Longitudinal chute and longitudinal sliding block
20 local full-page proofs are detailed in Figure 16.Outside stiffener 8, inside stiffener 9 are welded on crossbeam 2, for preventing structure from occurring
Big local deformation.When malformation is met the requirements, outside stiffener 8, inside stiffener 9 can also be not provided with.Crossbeam 2 is in cross
Figure 11~15 are seen to the sectional view of different location.The present invention passes through the unique construction of stringer carriage and stringer top, mutually
Matching cooperation realizes being connected and fixed for the section of track subelement of the modularization section of track and slides with smooth, ensured the driving at beam seam
Safety and a wide range of dilatation.
As shown in Fig. 1~10, between the crossbeam 2 of the two neighboring section of track subelement and the section of track subelement
Between the crossbeam of the end section of track structure of crossbeam 2 and track girder, it is provided with waterproof soft board 23, the waterproof soft board 23 exists
The equal length of the crossbeam 2 of the length of track girder transverse direction and the section of track subelement, the upper limb of the waterproof soft board 23 and crossbeam
It links together.The soft materials such as the use rubber of waterproof soft board 23 are made, and waterproof soft board 23 should can oneself when sliding unit slides
By deforming.The present invention passes through the unique construction of waterproof soft board, crossbeam upper limb is disposed at, to small-sized between section of track subelement
Expansion joint is protected, and prevents chance water, Shi Sha etc. from falling into inside telescopic device.
As shown in fig. 7, in initial installation, between two neighboring section of track subelement, section of track subelement and track girder end
The gap between all adjacent F rails 1 between section of track structure should all be equal, can be not connected between F rail, can also use and not lock
Dead mode connects, such as existing II type or type III expansion joint.Between two neighboring section of track subelement, section of track subelement
X-shaped connecting rod is equipped between the section of track structure of track girder end, X-shaped connecting rod is a gap equal division device, in track girder
Beam seam size maintains between the two neighboring section of track subelement when changing, section of track subelement and track girder end section of track structure it
Between all F rails 1 between gap it is equal always.The X-shaped connecting rod by the inside rotation limb 24 of X-shaped connecting rod, X-shaped connecting rod it is outer
Side rotates limb 25, the rotation axis 26 of X-shaped connecting rod forms.The middle part of the inside rotation limb 24 of the X-shaped connecting rod is single pole shape, described
The middle part of the outside rotation limb 25 of X-shaped connecting rod is double rod shape, has the space for accommodating single pole rotation between double rod；The X-shaped connects
The inside rotation limb 24 of bar, the outside rotation limb 25 of X-shaped connecting rod can turn around the X-shaped connecting rod for being located at the two cross-point locations
Moving axis 26 rotates freely；X-shaped connecting rod drawing is detailed in Figure 17.The present invention is by linkage (especially X-shaped connecting rod) and laterally
Carriage realizes the gap being distributed to the biggish length travel that track girder occurs automatically between each section of track subelement
On variable quantity, the structural requirement of the seamed track of medium-and low-speed maglev traffic is adapted to.
As shown in figure 5, offering hole on the web of the crossbeam 2 of the sliding unit, it is equipped with double hinges in hole and slides laterally
The full-page proof of device 10, double hinge transverse slides 10 is shown in Figure 19.Double hinge transverse slides 10 are by a center sliding axle and one
A sliding sleeve composition with bilateral rotating hinge, center sliding axle are longitudinally that track girder transverse direction is fixed at along crossbeam
Between the outside stiffener 8 and liner stiffener 9, the sliding sleeve with bilateral rotating hinge can slide axis direction along center
It is free to slide.The inside rotation limb 24 of the X-shaped connecting rod, the both ends of the outside rotation limb 25 of X-shaped connecting rod are hingedly connected to described
Horizontal mobile device is specifically articulated in the sliding sleeve with bilateral rotating hinge of double hinge transverse slides 10
One.Double hinge transverse slides 10 are used to adapt to when X-shaped connecting rod occurs around the movement of the rotation axis 26 of X-shaped connecting rod while companion
As the displacement along direction across bridge has occurred in outside rotation 25 end of limb of the inside rotation limb 24 of X-shaped connecting rod, X-shaped connecting rod.
As shown in Figure 1, Figure 2 and shown in Fig. 6, hole is offered on the web of the crossbeam 2 of bridge deck track structure, it is horizontal that single hinge is equipped in hole
To carriage 7, single full-page proof for cutting with scissors transverse slide 7 is shown in Figure 18.Single hinge transverse slide 7 by a center sliding axle and
One sliding sleeve composition with unilateral rotating hinge, center sliding axle are longitudinally the fixed setting of track girder transverse direction along crossbeam
Between the outside stiffener 8 and liner stiffener 9, the sliding sleeve with unilateral rotating hinge can be along center sliding axle side
To free to slide.The inside rotation limb 24 of the X-shaped connecting rod, the both ends of the outside rotation limb 25 of X-shaped connecting rod are hingedly connected to institute
Horizontal mobile device is stated, specifically, is articulated with the sliding sleeve with unilateral rotating hinge of single hinge transverse slide 7.
The present invention is by horizontal mobile device, especially double hinge transverse slides and single unique construction for cutting with scissors transverse slide, both
It realizes effective connection of section of track subelement inside the modularization section of track, and converts transverse direction for the longitudinal sliding motion of section of track subelement
Sliding, and this structure makes conversion range big, and telescopic adjustment amount has been turned up.
As shown in Fig. 2, being the track structure cross sectional arrangement figure of the longitudinally fixed end side of freely-supported stringer 18, F rail 1 passes through
Bolt 3 bolt on crossbeam 2, crossbeam 2 can use i shaped cross section, can also using H-type section, box-type section or other
The web in section, crossbeam 2 is equipped with outside stiffener 8, inside stiffener 9, sets between outside stiffener 8, inside stiffener 9
Hole is equipped with single hinge transverse slide 7 in hole.Crossbeam 2 is connect by fastener 4, height adjusting cushion block 5, track 6 with track girder 11.
As shown in figure 3, being the track structure cross sectional arrangement figure of 18 longitudinally-moving end side of freely-supported stringer, F rail 1 passes through
Bolt 3 bolt on crossbeam 2, crossbeam 2 can use i shaped cross section, can also using H-type section, box-type section or other
The web in section, crossbeam 2 is equipped with outside stiffener 8, inside stiffener 9, sets between outside stiffener 8, inside stiffener 9
Hole is equipped with single hinge transverse slide 7 in hole.Crossbeam 2 is connect by fastener 4, height adjusting cushion block 5, track 6 with track girder 11.
In order to enable freely-supported stringer 18 occur length travel when be not raised cushion block 5, track 6 blocks, fastener 4, height adjusting cushion block 5,
The setting position of track 6 should avoid the region that freely-supported stringer 18 occurs to reach when length travel and be detailed in Fig. 9 and Figure 10.
Fastener 4, height adjusting cushion block 5, track 6 are set to track girder lateral mid-point in Fig. 3, at the same be arranged box strengthening support 12,
Anchor bolt 13 carrys out support beam 2, prevents crossbeam 2 from excessive deformation occurs to influence the rail level ride comfort of F rail 1.
As shown in figure 4, base plate 14 of each hinged-support by hinged-support, the vertical supporting plate 15 of hinged-support, hinged-support
Rotation axis 16, hinged-support rotation axis prevent that traversing nut 17 is constituted.According to track girder top plate width and structure stress needs, often
Several hinged-supports are laterally arranged in a beam-ends, and hinged-support can be 2, are also possible to 3 or more.
Medium-and low-speed maglev track girder big displacement telescopic device action process of the invention is as follows:
When under the effect of the external loads such as vehicle active load, temperature action length travel or vertical bending deformation occur for track girder 11
When shape, the deflection deformation bring beam-ends corner that 18 one side of freely-supported stringer can adapt to track girder by hinged-support is deformed,
Length travel occurs for the oblong hole that on the other hand can be also arranged along freely-supported stringer 18 by hinged-support to adapt to track girder
The length travel that structure occurs.
When length travel occurs for track girder, along its oblong hole length travel occurs for freely-supported stringer 18, and freely-supported is small vertical
The track structure at 18 longitudinally-moving end of beam also occurs length travel and X-shaped connecting rod is driven to rotate limb 24, X by the inside of X-shaped connecting rod
The outside rotation limb 25 of shape connecting rod, the rotation axis 26 of X-shaped connecting rod form, lower with the rotation occurred along its center intersecting axle, into one
Step drives single hinge transverse slide 7 and double hinge transverse slides 10 to slide laterally, to drive the X-shaped being attached thereto
Rotation along its center intersecting axle occurs for connecting rod, and the rotation of its center intersecting axle, all X-shapeds occur for final all X-shaped connecting rods
The movement of connecting rod drives the section of track subelement being attached thereto to generate longitudinal sliding motion, the length travel equal part that finally track girder occurs
Onto the gap variable quantity between each section of track subelement, it is flexible to realize medium-and low-speed maglev track girder big displacement.
When deflection deformation occurs for track girder, with upwarping for beam-ends, hinged-support, which not only rotates, to be displaced but also longitudinal direction occurs
With the displacement of hinged-support corresponding displacement occurs for displacement and vertical displacement, freely-supported stringer 18.The vertical displacement band of hinged-support
Equal vertical displacement occurs for the both ends of dynamic freely-supported stringer 18, and other all components being connected with freely-supported stringer 18 occur
Mutually deserved vertical displacement ensure that the height above rail surface continuity of track girder deflection deformation back rest seam position；The rotation position of hinged-support
It is moved from by occurring, freely-supported stringer 18 is displaced without corresponding；Length travel occurs for hinged-support and length travel integrally occurs for track girder
It is identical, it has been described, has repeated no more above.
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, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of medium-and low-speed maglev track girder big displacement telescopic device, it is characterised in that: the big displacement telescopic device is crossed over and set
The beam set in medium-and low-speed maglev rail traffic track girder is sewed on；
In the back of (11) two beam-ends of adjacent orbit beam, end section of track structure and telescopic device support are respectively set；
Freely-supported stringer (18) are set between corresponding two telescopic device supports, one end of the freely-supported stringer (18)
With rotational freedom, fricton-tight freedom degree, the other end of the freely-supported stringer (18) has rotational freedom and track girder
The free sliding degree of longitudinal direction；
The upper end of the freely-supported stringer (18) is slidably provided with the flexible section of track of modularization by stringer carriage；
The flexible section of track of the modularization includes several section of track subelements along the arrangement of track girder longitudinal direction；
The track girder longitudinal direction two sides of the section of track subelement and the end section of track structure are all provided with towards beam seam side
It is equipped with horizontal mobile device；
Between the section of track subelement of adjacent two, and the section of track subelement and the end section of track knot at longitudinal both ends
Between structure, it is provided with linkage, the both ends of the linkage connect the horizontal mobile device.
2. medium-and low-speed maglev track girder big displacement telescopic device as described in claim 1, it is characterised in that:
The section of track subelement includes F rail (1), crossbeam (2)；
The F rail (1) is mounted on longitudinal both ends of the crossbeam (2), is aligned with the F rail (1) of the end section of track structure.
3. medium-and low-speed maglev track girder big displacement telescopic device as described in claim 1, it is characterised in that:
One end of the freely-supported stringer (18) is equipped with round hole, is supported on by the rotation axis (16) of the telescopic device support
It can rotate on the telescopic device support and around the rotation axis (16) of hinged-support；The other end of the freely-supported stringer (18) is set
There is oblong hole, is supported on the telescopic device support of the other end simultaneously by the rotation axis (16) of the telescopic device support
Can rotate around rotation axis (16) can also vertically move simultaneously along the oblong hole.
4. medium-and low-speed maglev track girder big displacement telescopic device as described in claim 1, it is characterised in that:
Freely-supported stringer (18) upper limb is equipped with longitudinal chute, and the longitudinal chute is by longitudinal rail (19), longitudinal rail
It sets lower slide plate (22) built in upper slide plate (21), longitudinal rail to form, the length and freely-supported stringer of the longitudinal chute
(18) longitudinal length is identical, and upper slide plate built in longitudinal rail (21) is mounted in the inside of longitudinal rail (19), longitudinal rail
Built-in lower slide plate (22) is mounted in the upper limb of freely-supported stringer (18), forms a semi-enclosed longitudinal chute.
5. medium-and low-speed maglev track girder big displacement telescopic device as claimed in claim 4, it is characterised in that:
The stringer carriage includes longitudinal sliding block (20), and the longitudinal sliding block (20) is fixed under each section of track subelement
End, the setting position of the longitudinal sliding block (20) is corresponding with the position of the freely-supported stringer (18), also, described longitudinal sliding
Block (20) is in inverted T-shaped section, and lower edge inlay card is in the longitudinal chute, so that the longitudinal sliding block (20) can be described vertical
Into sliding slot along track girder longitudinal sliding motion.
6. medium-and low-speed maglev track girder big displacement telescopic device as claimed in claim 2, it is characterised in that:
The horizontal mobile device includes double hinges transverse slide (10)；
The crossbeam (2) offers the through hole of track girder longitudinal direction, and double hinge transverse slides are provided in hole
(10)；
Double hinges transverse slide (10) are had the sliding sleeve group of bilateral rotating hinge by a center sliding axle and one
It is longitudinally the fixed setting of track girder transverse direction along crossbeam at, center sliding axle, the sliding sleeve with bilateral rotating hinge can be with
Along center, sliding axis direction is free to slide.
7. medium-and low-speed maglev track girder big displacement telescopic device as described in claim 1, it is characterised in that:
The horizontal mobile device includes single hinge transverse slide (7)；
The through hole of track girder longitudinal direction is offered on the web of the crossbeam of the end section of track structure, is provided in hole described
Single hinge transverse slide (7)；
Single hinge transverse slide (7) is by a center sliding axle and a sliding sleeve group with unilateral rotating hinge
At center sliding axle is longitudinally the fixed setting of track girder transverse direction along crossbeam, and the sliding sleeve with unilateral rotating hinge is located at
Towards track girder beam seam side, can along center slide axis direction it is free to slide.
8. medium-and low-speed maglev track girder big displacement telescopic device as claimed in claims 6 or 7, it is characterised in that:
The linkage includes several X-shaped connecting rods；
The X-shaped connecting rod is rotated turn of limb (25), X-shaped connecting rod by inside rotation limb (24) of X-shaped connecting rod, the outside of X-shaped connecting rod
Moving axis (26) composition；
The middle part of inside rotation limb (24) of the X-shaped connecting rod is single pole shape, and the outside of the X-shaped connecting rod rotates in limb (25)
Portion is double rod shape, has the space for accommodating single pole rotation between double rod；The inside of the X-shaped connecting rod rotates limb (24), X-shaped connecting rod
Outside rotation limb (25) can be rotated freely around the rotation axis (26) of X-shaped connecting rod for both being located at cross-point locations；
The both ends of inside rotation limb (24), outside rotation limb (25) of X-shaped connecting rod of the X-shaped connecting rod are hingedly connected to the cross
To mobile device.
9. medium-and low-speed maglev track girder big displacement telescopic device as described in claim 1, it is characterised in that:
The telescopic device support includes turn of the base plate (14) of hinged-support, the vertical supporting plate (15) of hinged-support, hinged-support
Moving axis (16)；The rotation axis (16) of the hinged-support is arranged between the vertical supporting plate (15) of two hinged-supports.
10. medium-and low-speed maglev track girder big displacement telescopic device as claimed in claim 2, it is characterised in that:
Between the crossbeam (2) of the two neighboring section of track subelement and the crossbeam (2) of the section of track subelement and track girder
It between the crossbeam of the end section of track structure, is provided with waterproof soft board (23), the waterproof soft board (23) is in track girder transverse direction
Length and the section of track subelement crossbeam (2) equal length, the waterproof soft board (23) and the upper limb of crossbeam are connected to
Together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811141810.3A CN109024107B (en) | 2018-09-28 | 2018-09-28 | Large displacement telescoping device of middle-low speed magnetic levitation track beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811141810.3A CN109024107B (en) | 2018-09-28 | 2018-09-28 | Large displacement telescoping device of middle-low speed magnetic levitation track beam |
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| CN109024107B CN109024107B (en) | 2024-03-15 |
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| CN111172817A (en) * | 2020-03-03 | 2020-05-19 | 成都得佑轨道交通科技有限公司 | Connecting structure for steel rail |
| CN113322725A (en) * | 2021-05-21 | 2021-08-31 | 中铁二院工程集团有限责任公司 | Seamless track structure of normally-conducting short-stator magnetic suspension system |
| WO2022121340A1 (en) * | 2020-12-09 | 2022-06-16 | 中铁磁浮交通投资建设有限公司 | High-speed maglev bridge large-displacement extension and retraction device |
| CN115094686A (en) * | 2022-06-24 | 2022-09-23 | 中铁第一勘察设计院集团有限公司 | Groove type track vacuum sealing tubular beam |
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