CN114808564B - Track structure suitable for medium-low speed maglev train and installation method thereof - Google Patents
Track structure suitable for medium-low speed maglev train and installation method thereof Download PDFInfo
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- CN114808564B CN114808564B CN202210549937.9A CN202210549937A CN114808564B CN 114808564 B CN114808564 B CN 114808564B CN 202210549937 A CN202210549937 A CN 202210549937A CN 114808564 B CN114808564 B CN 114808564B
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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
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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
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
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Abstract
The invention relates to the technical field of maglev trains, and provides a track structure suitable for a medium-low speed maglev train and an installation method thereof, wherein the track structure comprises a cloud track beam, a plurality of clamping and supporting members, a supporting beam and an F track, wherein the clamping and supporting members are sequentially arranged along the length direction of the cloud track beam, and rail bearing platforms are arranged on the two sides of the clamping and supporting members along the width direction of the cloud track beam; the supporting beam extends along the length direction of the cloud rail track beam and is borne on the rail bearing platform; the F rail extends along the length direction of the cloud rail track beam and is installed on the supporting beam. The track structure suitable for the medium-low speed maglev train provided by the invention realizes that the cloud track beam is reformed into the track structure meeting the safe and reliable operation requirement of the medium-low speed maglev train on the basis of not changing the existing structure of the existing cloud track beam, and achieves the purposes of fully utilizing the old and reducing the reforming cost.
Description
Technical Field
The invention relates to the technical field of maglev trains, in particular to a track structure suitable for a medium-low speed maglev train and an installation method thereof.
Background
Cloud rail traffic is built in 2017 in part of domestic cities, and due to policy change and other reasons, the cloud rail traffic cannot be built continuously, so that built or partially built cloud rail beams for normal operation of cloud rail trains are laid up till now, and resource waste and adverse social effects are caused. A conventional cloud rail train adopts a straddle type single rail structure, a cloud rail beam is a simple PC concrete beam, the width is usually 700mm, and power supply rails are arranged on two sides of the cloud rail beam, but other rail structures are not arranged.
With the rapid development of the medium-low speed maglev train technology, the medium-low speed maglev train based on electromagnet suspension and linear motor traction has the advantages of low vibration noise, strong climbing capability, good curve passing performance, low carbon, environmental protection and the like, and can better replace the existing cloud rail traffic.
However, the track structure for the normal running of the medium-low speed maglev train in the prior art usually adopts a track panel structure consisting of sleepers and F rails, the track gauge of the track panel structure is usually wide and is about 1700-2000 mm generally, and it is difficult to directly install the F rails required by the normal running of the medium-low speed maglev train on the cloud rail beam.
Therefore, it is necessary to design a track structure that can meet the requirements of the medium and low speed maglev train on safe and reliable operation without changing the existing cloud track beam structure.
Disclosure of Invention
The invention aims to provide a track structure suitable for a medium-low speed maglev train and an installation method thereof, so as to realize the purpose of modifying a cloud rail track beam into a track structure meeting the safe and reliable operation requirement of the medium-low speed maglev train on the basis of not changing the existing structure of the existing cloud rail track beam, thereby achieving the purposes of fully utilizing the old and reducing the modification cost.
The purpose of the invention is realized by the following technical scheme:
in one aspect, the present invention provides a track structure suitable for a medium-low speed maglev train, including:
a cloud rail track beam;
the clamping support members are sequentially arranged at equal intervals along the length direction of the cloud rail track beam; the clamping and supporting member is used for surrounding and clamping the cloud rail track beam, and rail bearing platforms are formed on two sides of the clamping and supporting member in the width direction of the cloud rail track beam;
the supporting beam extends along the length direction of the cloud rail track beam and is borne on the rail bearing platform;
and the F rail extends along the length direction of the cloud rail beam and is installed on the support beam.
Optionally, the rail bearing platform at least has a positioning surface located in a vertical plane and a bearing surface located in a horizontal plane, one side of the support beam close to the cloud rail track beam is attached to the positioning surface of the rail bearing platform, and the bottom of the support beam is supported on the bearing surface of the rail bearing platform.
Furthermore, one side of the supporting beam close to the cloud rail beam is fixedly connected with the positioning surface of the rail bearing platform, and the bottom of the supporting beam is fixedly connected with the bearing surface of the rail bearing platform through bolts.
Optionally, the clamping support member includes an upper bridge, a lower bridge and a connecting piece, the upper bridge and the lower bridge are both in a "door" type structure, and the rail bearing platforms are arranged on both sides of the upper bridge;
go up the crane span structure knot and establish at the top of cloud rail track roof beam, lower crane span structure knot establishes the bottom at cloud rail track roof beam, goes up the crane span structure and all links to each other through the connecting piece with the corresponding both sides of lower crane span structure.
Further, the connecting piece is long screw, and the top of long screw is provided with spacing portion, has seted up spacing hole on going up the crane span structure, and spacing hole runs through the crane span structure along vertical direction, and the inner wall in spacing hole is provided with the spacing step with spacing portion adaptation, and the bottom of long screw passes spacing hole downwardly extending and runs through lower crane span structure.
Furthermore, the cloud rail track roof beam all is provided with the power supply rail along its ascending both sides in width direction, has the clearance that supplies long screw to pass between the inboard of power supply rail and the lateral wall of cloud rail track roof beam.
Furthermore, the number of the connecting pieces positioned on the same side of the upper bridge frame and the lower bridge frame is two, and the two connecting pieces are arranged side by side.
Optionally, the support beams on the two sides of the cloud rail track beam are provided with connecting blocks, the connecting blocks arranged on each support beam correspond to the clamping support members one to one, the connecting blocks extend towards the cloud rail track beam along the horizontal direction, and the bottom surfaces of the connecting blocks are abutted to the top surfaces of the clamping support members;
the clamping support structure further comprises connecting plates which correspond to the clamping support members one to one, one end of each connecting plate is connected with the connecting block of one support beam, and the other end of each connecting plate is connected with the connecting block of the other support beam.
Optionally, the distance between two adjacent clamping support members is 1m.
On the other hand, the invention provides a method for installing a track structure suitable for a medium-low speed maglev train, which comprises the following steps of:
s1, sequentially installing a plurality of clamping and supporting members which are distributed at equal intervals along the length direction of a cloud rail track beam, wherein the clamping and supporting members form rail bearing platforms on two sides along the width direction of the cloud rail track beam;
s2, respectively installing a support beam on each of two sides in the width direction of the cloud rail track beam, wherein the support beams extend in the length direction of the cloud rail track beam and are borne on a rail bearing platform;
and S3, respectively installing an F rail on each supporting beam.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
the track structure suitable for the medium-low speed maglev train provided by the invention realizes that the cloud track beam is transformed into the track structure meeting the safe and reliable operation requirement of the medium-low speed maglev train on the basis of not changing the existing structure of the existing cloud track beam, and achieves the purposes of fully utilizing the old and reducing the transformation cost. Meanwhile, the track structure is firm and reliable, the modular design is realized by arranging a plurality of clamping and supporting members which are sequentially arranged along the length direction of the cloud track beam, the processing, the manufacturing and the installation are convenient, the overall effect of the track structure is attractive, and the problem of vehicle-track coupling vibration possibly occurring in the normal running process of the medium-low speed maglev train can be effectively inhibited by adopting the tight-joint track design of a steel structure, so that the reliability of the track structure is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a track structure provided in embodiment 1 of the present invention;
fig. 2 is a schematic partial enlarged structural view of a track structure provided in embodiment 1 of the present invention;
fig. 3 is a left side view of a track structure provided in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a clamping support member provided in embodiment 1 of the present invention;
fig. 5 is a side sectional view of an upper bridge according to embodiment 1 of the present invention;
fig. 6 is a side sectional view of a lower bridge according to embodiment 1 of the present invention;
fig. 7 is a side sectional view of a clamping support member provided in embodiment 1 of the present invention;
fig. 8 is an enlarged view of a portion a in fig. 2.
An icon: the method comprises the following steps of 1-cloud rail track beam, 2-clamping support member, 21-upper bridge frame, 21 a-limiting hole, 21 b-limiting step, 22-lower bridge frame, 22 a-through hole, 23-connecting piece, 23 a-limiting part, 24-bearing plate, 25-reinforcing rib, 26-first nut, 27-second nut, 3-supporting beam, 3 a-connecting block, 4-F rail, 5-power supply rail, 6-bearing rail platform, 6 a-positioning surface, 6 b-bearing surface and 7-connecting plate.
Detailed Description
Example 1
Referring to fig. 1 to 8, the present embodiment provides a track structure suitable for a medium-low speed maglev train, so as to transform a cloud-rail track beam 1 into a track structure capable of meeting the requirements of the medium-low speed maglev train on safe and reliable operation without changing the existing cloud-rail track beam 1, thereby achieving sufficient utilization and reducing the transformation cost. The track structure comprises a cloud track beam 1, a clamping support member 2, a support beam 3 and an F-track 4.
In this embodiment, please refer to fig. 1, fig. 2, or fig. 3, the cloud rail track beam 1 is a PC concrete beam in an existing cloud rail traffic system, and power supply rails 5 for normal operation of a cloud rail train are disposed on outer walls of two sides of the cloud rail track beam 1 in a width direction thereof, and it should be noted that a specific structure of the cloud rail track beam 1 may refer to a specific structure of the existing cloud rail track beam 1, which is not described herein in detail.
In order to realize the transformation of the cloud track beam 1 into a track structure for safe and reliable operation of a medium-low speed maglev train on the basis of not changing the existing structure of the cloud track beam 1, the clamping support member 2, the support beam 3 and the F track 4 are additionally arranged on the track structure suitable for the medium-low speed maglev train.
Wherein, single clamping support member 2 is used for enclosing cloud rail track roof beam 1 in the centre and presss from both sides tight cloud rail track roof beam 1, in this embodiment, the quantity that presss from both sides tight support member 2 is a plurality of, a plurality of clamping support member 2 set gradually along the length direction of cloud rail track roof beam 1, and press from both sides tight support member 2 and be formed with support rail platform 6 along the ascending both sides of width direction of cloud rail track roof beam 1, at this moment, a plurality of clamping support member 2 constitute a steel construction basic platform jointly, and the cooperation forms support rail platform 6 in clamping support member 2 both sides, in order to realize expanding the width of current cloud rail track roof beam 1, thereby make final track structure who forms can satisfy the track gauge requirement that supplies the track structure that medium and low speed maglev train normally travel.
It should be noted that, in order to make the force acting on each position of the cloud rail track beam 1 more uniform as much as possible, in combination with the schematic structural diagram of the track structure shown in fig. 1, the plurality of clamping support members 2 of the present embodiment are sequentially arranged at equal intervals along the length direction of the cloud rail track beam 1, as a preferable scheme, the interval between two adjacent clamping support members 2 is 1m, of course, the interval between two adjacent clamping support members 2 may be adjusted according to actual conditions in actual implementation, and the interval between two adjacent clamping support members 2 is not particularly limited herein.
Referring to fig. 2 or fig. 3, the supporting beam 3 is used for supporting an F-rail 4 for the medium-low speed maglev train to normally travel, two supporting beams 3 are respectively disposed on two sides of the cloud rail beam 1 to support one F-rail 4 through one supporting beam 3, and at this time, the supporting beam 3 extends along the length direction of the cloud rail beam 1 and is supported on the rail support platform 6 to realize the installation and fixation of the supporting beam 3.
Correspondingly, with continued reference to fig. 2 or fig. 3, the F rails 4 are also two and respectively disposed on two sides of the cloud rail track beam 1, and each F rail 4 extends along the length direction of the cloud rail track beam 1 and is mounted on the supporting beam 3, at this time, the F rails 4 located on two sides of the cloud rail track beam 1 jointly form a track for the medium-low speed maglev train to normally run. It should be noted that, in conjunction with the left side view of the track structure shown in fig. 3, the F-shaped rail 4 of the present embodiment is preferably disposed on the top surface of the supporting beam 3, so as to provide stable and reliable support for the F-shaped rail 4 through the supporting beam 3; simultaneously, can adopt bolted connection's mode fixed connection between F rail 4 and the supporting beam 3, the example, can set up the threaded connection hole that corresponds with threaded connection hole on the F rail 4 at the top surface of supporting beam 3 in advance to in with the quick accurate installation to supporting beam 3 of F rail 4, accelerate the installation effectiveness of F rail 4, need adjust F rail 4's position repeatedly when avoiding the later stage installation.
Therefore, the track structure suitable for the medium-low speed maglev train provided by the embodiment realizes that the cloud track beam 1 is transformed into the track structure meeting the safe and reliable operation requirements of the medium-low speed maglev train on the basis of not changing the existing structure of the existing cloud track beam 1, and achieves the purposes of fully utilizing the old and reducing the transformation cost. Meanwhile, the track structure is firm and reliable, the modular design is realized by arranging the plurality of clamping and supporting members 2 which are sequentially arranged along the length direction of the cloud track beam 1, the processing, the manufacturing and the installation are convenient, the overall effect of the track structure is attractive, and the problem of vehicle-track coupling vibration possibly occurring in the normal running process of the medium-low speed maglev train can be effectively inhibited by adopting the close-joint track design of the steel structure, so that the reliability of the track structure is further improved.
In this embodiment, in order to facilitate the rapid installation of the support beam 3 on the rail bearing platform 6 and improve the reliability of the support beam 3, in combination with the schematic structural diagram of the clamping support member 2 shown in fig. 4, the rail bearing platform 6 of this embodiment at least has a positioning surface 6a located in a vertical plane and a bearing surface 6b located in a horizontal plane, at this time, one side of the support beam 3 close to the cloud rail beam 1 is attached to the positioning surface 6a of the rail bearing platform 6, and the bottom of the support beam 3 is borne on the bearing surface 6b of the rail bearing platform 6. Preferably, in the embodiment, one side of the support beam 3 close to the cloud rail track beam 1 is fixedly connected with the positioning surface 6a of the rail bearing platform 6 through bolts, and at the same time, the bottom of the support beam 3 is fixedly connected with the bearing surface 6b of the rail bearing platform 6 through bolts, and it can be understood that corresponding threaded connection holes can be arranged in advance on the positioning surface 6a of the rail bearing platform 6, the bearing surface 6b of the rail bearing platform 6, one side of the support beam 3 close to the cloud rail track beam 1, and the bottom of the support beam 3, so as to connect the rail bearing platform 6 and the support beam 3 by using bolts when the support beam 3 is installed and fixed. So set up, when actually installing supporting beam 3, only need to make supporting beam 3 be close to cloud rail track roof beam 1 one side and support rail platform 6 locating surface 6a and paste mutually, and make threaded connection hole on the locating surface 6a of support rail platform 6 and the threaded connection hole that supporting beam 3 is close to cloud rail track roof beam 1 one side counterpoint, threaded connection hole on the loading end 6b of support rail platform 6 and the threaded connection hole of supporting beam 3 bottom counterpoint, can utilize the bolt to be connected supporting beam 3 and support rail platform 6 fast, improve supporting beam 3's installation effectiveness and ensure supporting beam 3's reliability.
In this embodiment, in order to facilitate the installation of the clamping support member 2 and ensure that the clamping support member 2 can provide reliable support for the support beam 3 and the F rail 4, referring to fig. 3, the clamping support member 2 of this embodiment includes an upper bridge frame 21, a lower bridge frame 22 and a connecting member 23, the upper bridge frame 21 and the lower bridge frame 22 both adopt a semi-enclosed and approximately door-shaped structure, the rail support platforms 6 are disposed on both sides of the upper bridge frame 21, and the connecting member 23 is used for connecting the upper bridge frame 21 and the lower bridge frame 22, that is, the connecting member 23 of the clamping support member 2 is disposed on both sides along the width direction of the cloud rail beam 1, and at this time, the upper bridge frame 21 and the lower bridge frame 22 on the same side of the cloud rail beam 1 are connected by the connecting member 23.
It can be understood that, in the embodiment, the outer sidewall of the upper bridge frame 21 is provided with the bearing plate 24, and the bearing plate 24 and the upper bridge frame 21 are of an integrated structure to ensure the structural integrity and the structural strength of the upper bridge frame 21, at this time, with reference to the structural schematic diagram of the clamping support member 2 shown in fig. 3, the bearing plate 24 and the upper half portion of the upper bridge frame 21 together form the rail bearing platform 6, the top surface of the bearing plate 24 is the bearing surface 6b of the rail bearing platform 6, and the outer sidewall of the upper half portion of the upper bridge frame 21 is the positioning surface 6a of the rail bearing platform 6. Preferably, the bearing plate 24 is disposed in the middle of the outer sidewall of the upper bridge frame 21, and a reinforcing rib 25 in a shape of a triangle may be disposed between the bottom surface of the bearing plate 24 and the outer sidewall of the lower half of the upper bridge frame 21 to further improve the structural strength of the bearing plate 24, so that it can provide a reliable support for the support beam 3 and the F-rail 4. In addition, in order to reduce the material loss of the upper and lower bridges 21 and 22 while ensuring the structural strength of the upper and lower bridges 21 and 22, thereby reducing the weight of the upper and lower bridges 21 and 22 and reducing the cost, an annular hollow portion may be provided in the middle area of the upper and lower bridges 21 and 22.
So set up, in actual installation, buckle upper bridge frame 21 at the top of cloud rail track roof beam 1, buckle lower bridge frame 22 in the bottom of cloud rail track roof beam 1, make the interior top surface of the inside "door" type region of upper bridge frame 21 offset with the top surface of cloud rail track roof beam 1, the both sides inner wall of the inside "door" type region of upper bridge frame 21 offsets with the both sides outer wall of cloud rail track roof beam 1, the interior bottom surface of the inside "door" type region of lower bridge frame 22 offsets with the bottom surface of cloud rail track roof beam 1, the both sides inner wall of the inside "door" type region of lower bridge frame 22 offsets with the both sides outer wall of cloud rail track roof beam 1, and get up the corresponding both sides of upper bridge frame 21 and lower bridge frame 22 through connecting piece 23 and be connected, at this moment, upper bridge frame 21, lower bridge frame 22 and connecting piece 23 installation after are accomplished are shown in fig. 3, through the upper bridge frame 21 of clamping support component 2, lower bridge frame 22 and connecting piece 23 can realize enclosing cloud rail track roof beam 1 in the centre and clamp cloud rail track roof beam 1, and the clamping support component 2 forms firm supporting structure and the stable reliable supporting platform for the safe and F4 that the supporting rail that the train can be provided firmly, thereby the safe and reliable and the stable and support of the fast F rail of the train can be provided.
It can be understood that, because there is often a gap between the inner side of the power supply rail 5 disposed on the existing cloud rail beam 1 and the outer side wall of the cloud rail beam 1, the connecting member 23 of the present embodiment uses a long screw. Meanwhile, in order to realize rapid connection of the upper bridge frame 21 and the lower bridge frame 22, in this embodiment, a limiting portion 23a is disposed at a top end of the long screw, in combination with the side sectional view of the upper bridge frame 21 shown in fig. 5, a limiting hole 21a for the long screw to pass through is disposed on the upper bridge frame 21, the limiting hole 21a penetrates through the upper bridge frame 21 in the vertical direction, a limiting step 21b adapted to the limiting portion 23a is disposed on an inner wall of the limiting hole 21a, in combination with the side sectional view of the lower bridge frame 22 shown in fig. 6, a through hole 22a penetrating through the lower bridge frame 22 in the vertical direction is disposed on the lower bridge frame 22, and the through hole 22a is aligned with the limiting hole 21a on the upper bridge frame 21. In actual installation, the bottom end of the long screw sequentially passes through the limiting hole 21a and the gap between the power supply rail 5 and the cloud rail track beam 1, then extends downward and passes through the through hole 22a of the lower bridge frame 22, at this time, referring to a side cross-sectional view of the clamping support member 2 shown in fig. 7, the limiting portion 23a is limited in the limiting hole 21a under the limiting action of the limiting step 21b (i.e., the bottom surface of the limiting portion 23a is supported on the top surface of the limiting step 21 b), and a first external thread section located at the upper bridge frame 21 and a second external thread section located at the lower bridge frame 22 are respectively provided based on the outer wall of the long screw, so that the long screw and the upper bridge frame 21 can be fixed by a first nut 26 which is screwed on the first external thread section of the long screw and is located at the bottom of the upper bridge frame 21, and the long screw and the lower bridge frame 22 can be fixed by two second nuts 27 which are screwed on the second external thread section of the long screw and are located at the upper and lower ends of the lower bridge frame 22. By the arrangement, the upper bridge frame 21 and the lower bridge frame 22 can be reliably connected on the basis of the scheme of the power supply rail 5 without affecting the existing cloud rail track beam 1.
It should be noted that, in this embodiment, the number of the connecting pieces 23 used for connecting the upper bridge 21 and the lower bridge 22 on the same side may be one or multiple, for example, in combination with the schematic structural diagram of the clamping support member 2 shown in fig. 4, in this embodiment, two connecting pieces 23 located on the same side of the upper bridge 21 and the lower bridge 22 are provided (that is, two sides of a single clamping support member 2 are provided with four long screws in total), and the two connecting pieces 23 located on the same side of the cloud rail track beam 1 are arranged side by side, so as to further improve the reliability after the connection between the upper bridge 21 and the lower bridge 22, at this time, the limiting holes 21a formed in the upper bridge 21 and the through holes 22a formed in the lower bridge 22 are all in one-to-one correspondence with the connecting pieces 23.
In this embodiment, referring to fig. 2, fig. 3, or fig. 8, the support beams 3 on both sides of the cloud rail track beam 1 are provided with the connection blocks 3a, each of the connection blocks 3a provided on each of the support beams 3 corresponds to one of the clamping support members 2, that is, each of the support beams 3 on both sides of each of the clamping support members 2 is provided with one connection block 3a, at this time, the connection blocks 3a of the two support beams 3 located at the same clamping support member 2 are oppositely arranged and located on the same straight line, one side of the connection block 3a away from the support beam 3 extends toward the cloud rail track beam 1 along the horizontal direction, and the bottom surface of the connection block 3a abuts against the top surface of the clamping support member 2, preferably, the bottom surface of the connection block 3a of the embodiment abuts against the top surface of the upper bridge frame 21, so as to apply a downward force to the upper bridge frame 21 through the connection blocks 3a located on both sides of the upper bridge frame 21, thereby further limiting the displacement of the upper bridge frame 21 in the vertical direction and improving the stability of the upper bridge frame 21. It will be appreciated that, in order to ensure the structural integrity of the support beam 3 and simultaneously ensure the structural strength of the support beam 3, the connecting blocks 3a provided on each support beam 3 are of an integral structure with the support beam 3.
Meanwhile, referring to fig. 2 or 8, the track structure provided in this embodiment further includes connecting plates 7 corresponding to the clamping and supporting members 2 one to one, that is, one connecting plate 7 is correspondingly disposed at one of the clamping and supporting members 2, at this time, one end of the connecting plate 7 is fixedly connected to the connecting block 3a of one of the supporting beams 3 through a bolt, the other end of the connecting plate 7 is fixedly connected to the connecting block 3a of the other supporting beam 3 through a bolt, the connecting plate 7 is substantially perpendicular to the cloud rail track beam 1 after being installed, and the connecting plate 7 is located in a central area right above the upper bridge frame 21. Preferably, in the actual implementation process, holes for passing bolts and corresponding to each other may be simultaneously formed in the upper bridge frame 21, the connecting block 3a and the connecting plate 7, so that the upper bridge frame 21, the connecting block 3a and the connecting plate 7 are connected into a whole by the bolts, thereby further improving the overall rigidity of the steel structure supporting platform composed of the clamping supporting member 2 and the supporting beam 3.
Example 2
On the basis of embodiment 1, the present embodiment provides an installation method suitable for a track structure of a medium-low speed maglev train, and in particular, a method for reconstructing a cloud track beam 1 into a track structure suitable for a medium-low speed maglev train as described in embodiment 1. The installation method comprises the following steps:
s1, firstly, sequentially installing a plurality of clamping and supporting members 2 which are arranged at equal intervals along the length direction of a cloud rail track beam 1, wherein the clamping and supporting members 2 form rail bearing platforms 6 on two sides along the width direction of the cloud rail track beam 1. In this embodiment, the distance between two adjacent clamping and supporting members 2 is 1m, the upper bridge 21 of each clamping and supporting member 2 is buckled at the top of the cloud rail track beam 1, the lower bridge 22 is buckled at the bottom of the cloud rail track beam 1, and the two corresponding sides of the upper bridge 21 and the lower bridge 22 are connected in sequence through four long screws, so that the clamping and supporting members 2 surround the cloud rail track beam 1 and clamp the cloud rail track beam 1, and the clamping and supporting members 2 provide stable and reliable support for the supporting beam 3 and the F rail 4.
S2, then, respectively installing a support beam 3 on two sides in the width direction of the cloud rail track beam 1, wherein the support beams 3 extend in the length direction of the cloud rail track beam 1 and are borne on a rail bearing platform 6. Specifically, one side of the support beam 3 close to the cloud rail track beam 1 is attached to a positioning surface 6a of the rail bearing platform 6, the bottom of the support beam 3 is borne on a bearing surface 6b of the rail bearing platform 6, and the support beam 3 is fixedly connected with the rail bearing platform 6 through bolts, so that the support beam 3 is quickly positioned and installed, and the support beam 3 provides stable and reliable support for the F rail 4; after the support beams 3 on the two sides of the cloud rail track beam 1 are installed, the bottom surfaces of the connecting blocks 3a on the support beams 3 are respectively abutted to the top surfaces of the upper bridges 21 of the corresponding clamping support members 2, and meanwhile, the connecting plates 7 are installed right above the upper bridges 21 of each clamping support member 2 so as to connect the support beams 3 on the two sides of the cloud rail track beam 1 through the connecting plates 7, so that the overall rigidity of a steel structure support platform formed by the clamping support members 2 and the support beams 3 is improved.
S3, finally, install an F rail 4 that extends along the length direction of cloud rail track roof beam 1 on every supporting beam 3 respectively, namely, through the bolt with F rail 4 fixed mounting at the top surface of supporting beam 3, so far, accomplished promptly and reformed transform cloud rail track roof beam 1 into the track structure who supplies the safe and reliable operation of low-and-medium-speed maglev train, whole transformation scheme is simple and high-efficient, and does not change current cloud rail track roof beam 1's overall structure, realized fully utilizing old and reduced the transformation cost, and simultaneously, except cloud rail track roof beam 1, all the other parts of track structure all make things convenient for the dismouting, thereby be convenient for carry out reuse to various parts.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a track structure suitable for well low-speed maglev train which characterized in that includes:
a cloud rail track beam;
the clamping support members are sequentially arranged at equal intervals along the length direction of the cloud rail track beam; the clamping and supporting member is used for surrounding and clamping the cloud rail track beam, and rail bearing platforms are formed on two sides of the clamping and supporting member in the width direction of the cloud rail track beam;
the supporting beam extends along the length direction of the cloud rail track beam and is borne on the rail bearing platform;
the F rail extends along the length direction of the cloud rail beam and is installed on the support beam;
the clamping support member comprises an upper bridge, a lower bridge and a connecting piece, the upper bridge and the lower bridge are both in a door-shaped structure, and the rail bearing platforms are arranged on two sides of the upper bridge;
the upper bridge frame is buckled at the top of the cloud rail track beam, the lower bridge frame is buckled at the bottom of the cloud rail track beam, and two corresponding sides of the upper bridge frame and the lower bridge frame are connected through connecting pieces.
2. The track structure suitable for medium and low speed maglev trains according to claim 1, wherein the rail support platform at least has a positioning surface in a vertical plane and a bearing surface in a horizontal plane, one side of the support beam near the cloud track rail beam is attached to the positioning surface of the rail support platform, and the bottom of the support beam is supported on the bearing surface of the rail support platform.
3. The track structure suitable for the medium-low speed maglev train according to claim 2, wherein the side of the support beam close to the cloud track beam is fixedly connected with the positioning surface of the rail bearing platform, and the bottom of the support beam is fixedly connected with the bearing surface of the rail bearing platform through bolts.
4. The track structure suitable for the middle-low speed maglev train according to claim 1, wherein the connecting member is a long screw, a limiting portion is disposed at a top end of the long screw, a limiting hole is disposed on the upper bridge, the limiting hole penetrates through the upper bridge in a vertical direction, a limiting step adapted to the limiting portion is disposed on an inner wall of the limiting hole, and a bottom end of the long screw penetrates through the limiting hole, extends downward and penetrates through the lower bridge.
5. The track structure suitable for the medium-low speed maglev train according to claim 4, wherein the cloud track beam is provided with power supply tracks along both sides of the cloud track beam in the width direction, and a gap for the long screw to pass through is formed between the inner side of each power supply track and the outer side wall of the cloud track beam.
6. The track structure suitable for the medium-low speed maglev train according to claim 4, wherein there are two connecting members located on the same side of the upper and lower bridges, and the two connecting members are arranged side by side.
7. The track structure suitable for the medium-low speed maglev train according to claim 1, wherein the support beams at two sides of the cloud track beam are provided with connecting blocks, the connecting blocks arranged on each support beam are in one-to-one correspondence with the clamping support members, the connecting blocks extend towards the cloud track beam along the horizontal direction, and the bottom surfaces of the connecting blocks are abutted against the top surfaces of the clamping support members;
the clamping support structure further comprises connecting plates which correspond to the clamping support members one to one, one end of each connecting plate is connected with the connecting block of one support beam, and the other end of each connecting plate is connected with the connecting block of the other support beam.
8. The track structure suitable for the medium-low speed maglev train according to claim 1, wherein the distance between two adjacent clamping support members is 1m.
9. The track structure suitable for the moderate-low speed maglev train according to claim 1, wherein the installation method of the track structure comprises the following steps:
s1, sequentially installing a plurality of clamping and supporting members which are distributed at equal intervals along the length direction of a cloud rail track beam, wherein the clamping and supporting members form rail bearing platforms on two sides along the width direction of the cloud rail track beam;
s2, respectively installing a support beam on each of two sides in the width direction of the cloud rail track beam, wherein the support beams extend in the length direction of the cloud rail track beam and are borne on a rail bearing platform;
and S3, respectively installing an F rail on each supporting beam.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101054793A (en) * | 2007-04-20 | 2007-10-17 | 铁道第三勘察设计院集团有限公司 | Middle and low speed magnetic levitation track girder |
| CN201473871U (en) * | 2009-08-26 | 2010-05-19 | 铁道第三勘察设计院集团有限公司 | Rail track of maglev train with middle and low-speed |
| KR20160006020A (en) * | 2014-07-08 | 2016-01-18 | 한국철도기술연구원 | Apparatus for Supporting Guide Rail of Magnetic Levitation Train |
| CN109930437A (en) * | 2019-03-18 | 2019-06-25 | 中铁第四勘察设计院集团有限公司 | A kind of straddle-type monorail section turnout junction girder picks up the transition system at station |
-
2022
- 2022-05-20 CN CN202210549937.9A patent/CN114808564B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054793A (en) * | 2007-04-20 | 2007-10-17 | 铁道第三勘察设计院集团有限公司 | Middle and low speed magnetic levitation track girder |
| CN201473871U (en) * | 2009-08-26 | 2010-05-19 | 铁道第三勘察设计院集团有限公司 | Rail track of maglev train with middle and low-speed |
| KR20160006020A (en) * | 2014-07-08 | 2016-01-18 | 한국철도기술연구원 | Apparatus for Supporting Guide Rail of Magnetic Levitation Train |
| CN109930437A (en) * | 2019-03-18 | 2019-06-25 | 中铁第四勘察设计院集团有限公司 | A kind of straddle-type monorail section turnout junction girder picks up the transition system at station |
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| CN114808564A (en) | 2022-07-29 |
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