CN103966928A - F rail connector structure of medium-and-low-speed magnetic suspension system rail - Google Patents
F rail connector structure of medium-and-low-speed magnetic suspension system rail Download PDFInfo
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- CN103966928A CN103966928A CN201410204326.6A CN201410204326A CN103966928A CN 103966928 A CN103966928 A CN 103966928A CN 201410204326 A CN201410204326 A CN 201410204326A CN 103966928 A CN103966928 A CN 103966928A
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Abstract
An F rail connector structure of a medium-and-low-speed magnetic suspension system rail aims to improve torsional stiffness and the altitude difference misalignment prevention ability of an F rail connector, and improve mounting precision of the rail. An inner guiding and limiting groove and an outer guiding and limiting groove which longitudinally extend are formed in the inner bottom and the outer side wall of a wing rail at the connecting end of each of two adjacent F rails respectively, the opening end of a U-shaped connecting plate is embedded into the inner guiding and limiting grooves and the outer guiding and limiting grooves, long slotted holes are formed in the U-shaped connecting plate in the longitudinal direction and the horizontal direction at intervals, and bolt connecting components which penetrate through the long slotted holes enable the U-shaped connecting plate and the two adjacent F rails to be detachably connected.
Description
Technical field
The present invention relates to middle low speed magnetic floating Rail Transit System, particularly a kind of middle low speed magnetic floating system track F rail joint design.
Background technology
Middle low speed magnetic floating track traffic adopts the attractive suspension of normal conducting magnetic iron and guiding technique, by the U-shaped electromagnet on vehicle suspension frame and the electromagnetic attraction between F shaped steel rail, realizes suspension and the guiding of vehicle.The middle low speed magnetic floating track structure of domestic existing application at present, the main steel tie pattern that adopts, track is mainly partly comprised of tablet, F rail, expansion coupling, connector and securing member, H shaped steel sleeper, fastener system, railway roadbed (track) etc. from top to bottom, and the section of track of take is mated formation as whole unit.F rail, steel tie and tablet are assembled into the section of track in factory or Assembling base, and the section of track couples together by F rail joint design at the scene, vertical, horizontal to neutralizing longitudinally enough temperature difference telescopic displacement regulated quantitys to guarantee track.The characteristic of expanding with heat and contract with cold, the F rail irregularity that the design of F rail joint design need take into full account magnetic levitation track requires, the convenience of train stability sexual demand and operation maintenance, and bonding strength, stability and the reliability of F rail joint design is train safe, the steadily and quick key of operation.
Domestic and international a plurality of mechanism has all launched the design and researchp of F rail jointing, in the majority with Japan and Chinese research mechanism, Japan Patent JP04-153401, JP2003-184006, US Patent No. 5199674A, Chinese patent CN200710094043.0, CN201210541691.7, CN201220135832.0 etc. have openly proposed the joint of multiple different types.
Japan Patent JP04-153401 discloses respectively a kind of F rail joint design that can be connected switch area track and sharp radius curve track with US Patent No. 5199674 with 1993 in 1992, designed a secondary F rail relatively independent with two main F rails be connected pattern, and between major-minor F rail, can maintain certain corner, to realize curve track, connect.This patent structure at home and abroad middle low speed magnetic floating test wire has application with runing on line.
Japan Patent JP2003-184006 discloses a kind of improvement structure to patent JP04-153401 in 2003, be mainly used in the connection of curve track, adopt " well " Zee bar steel Z sleeper and 2 secondary F rail syndetons to adapt to larger rail telescopic amount and curve track coupling stiffness.The application of this patent structure is also more extensive.
Chinese patent CN200710094043.0 discloses a kind of F rail joint design of circular arc end face in 2009, designed circular arc face type concave inlaid face, to adapt to by the low speed magnetic floating system of action-oriented form at two sections of F rail end faces.This patent structure also can be realized the elongation adjustment that track switch turns to.Chinese patent CN201220135832.0 discloses a kind of rail joint structure of the centering auxiliary connection consisting of boss, groove in 2012, main F rail adopts 4 screws to be realized and being connected with link slot by connecting hole with secondary F rail.This structure is provided with the auxiliary connection that automatically resets consisting of reset hole in major-minor F rail junction, utilize coordinating of elasticity reset device and reset hole, realizes the self-return of F rail.
Chinese patent CN201210541691.7 discloses a kind of boss and groove auxiliary connection jointing in 2013, interior utmost point abdomen groove and outer utmost point abdomen groove on secondary F rail, have been designed, on main F rail, design interior utmost point abdomen boss, outer utmost point abdomen boss, and by the link slot on groove, realized the adjusting of temperature difference stroke.
Joint design described above, all can meet in theory the connection request of middle low speed magnetic floating track, but still have the situation of joint bonding strength, torsional rigidity and spacing scarce capacity, easily cause the decline of track overall precision, affect vehicle operating, increase the cost of operation maintenance.
At home existing dropped into actual tests line or operation line track jointing in, be used in the joint design on rectilinear orbit, i.e. existing JI type joint design (as shown in Figure 1).In operation process, once there is the situation that the vertical irregularity of F rail (discrepancy in elevation) exceeds standard in this structure place, causes vehicle linear electric motors induction coil and tablet gap too small, and the collision of induction coil and tablet occurred; Vehicle, at non-suspended state, while utilizing emergent support wheel to move ahead, whenever support wheel rolls by rail gap, all will bear larger rail gap and impact, large on Vehicular vibration impact.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of middle low speed magnetic floating system track F rail joint design, to improve torsional rigidity and the anti-high incorrect bit ability of F rail joint, and improves the installation accuracy of track.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of middle low speed magnetic floating system track F rail joint design of the present invention, its adjacent two sections of F rails have outer leg, interior leg and wing rail, it is characterized in that: inside bottom, the outside sidewall of described adjacent two sections of F rail link wing rails offer respectively the interior guide and limit groove of longitudinal extension, outer guide and limit groove, the openend of U-shaped junction plate embeds in interior guide and limit groove, outer guide and limit groove; On U-shaped junction plate longitudinally, lateral separation is laid with long slot bore, through the bolt connection assembly of long slot bore, U-shaped junction plate and adjacent two sections of F rails are formed and removably connect.
The flat key groove, the dovetail groove that on the sidewall of the outer leg of described adjacent two sections of F rail links, offer respectively longitudinal extension, insert in the dovetail groove on one section of F rail one end of dovetail key, and the other end is fixedly connected in the flat key groove of another section of F rail.
The invention has the beneficial effects as follows, effectively realized the connection between adjacent two F rails, strengthened the horizontal centring property of adjacent two sections of F rails, torsional rigidity and the anti-high incorrect bit ability of F rail joint have been promoted, the rigidity, intensity and the reliability that have guaranteed F rail joint, integral body has improved the installation accuracy of track; F rail can be discharged because of the longitudinal extension distortion that the temperature difference causes, the variation of single 0～30mm rail gap stroke on straightway track can be adapted to; Dovetail key and dovetail groove coordinating on leg outside F rail, strengthened horizontal centring property and the vertical elevation difference limit ability of the adjacent two sections of F rails in F rail joint and second segment F rail effectively; Simple in structure, be convenient to install and processing, and be easy to safeguard, can greatly improve the section of track and lay efficiency, reduce investment and operation maintenance cost.
Accompanying drawing explanation
This manual comprises following six width accompanying drawings:
Fig. 1 is the schematic diagram of existing middle low speed magnetic floating system track F rail joint design;
Fig. 2 is the three-dimensional exploded view of low speed magnetic floating system track F rail joint design in the present invention;
Fig. 3 is the stereogram of junction plate in low speed magnetic floating system track F rail joint design in the present invention;
Fig. 4 is the outer side view of low speed magnetic floating system track F rail joint design in the present invention;
Fig. 5 is the stereogram of low speed magnetic floating system track F rail joint design in the present invention;
Fig. 6 is the stereogram of low speed magnetic floating system track F rail joint design in the present invention.
The title of member shown in figure and corresponding mark: F rail 10, outer leg 101, interior leg 102, wing rail 103, flat key groove 11, dovetail groove 12, interior guide and limit groove 13, outer guide and limit groove 14, U-shaped junction plate 20, long slot bore 21, L-type pressing plate 22, dovetail key 30.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
With reference to Fig. 2 and Fig. 5, a kind of middle low speed magnetic floating system track F rail joint design of the present invention, its adjacent two sections of F rails 10 have outer leg 101, interior leg 102 and wing rail 103.With reference to Fig. 5, the inside bottom of described adjacent two sections of F rail 10 link wing rails 103, outside sidewall offer respectively the interior guide and limit groove 13 of longitudinal extension, outer guide and limit groove 14, and the openend of U-shaped junction plate 20 embeds in interior guide and limit groove 13, outer guide and limit groove 14.Interior guide and limit groove 13, outer guide and limit groove 14 match with the openend of U-shaped junction plate 20, add on the one hand the contact area of wide-u-shaped junction plate 20 and wing rail 103, strengthen on the other hand the horizontal centring property of two sections of F rails 10, and torsional rigidity and the anti-high incorrect bit ability of effective reinforced joint.
With reference to Fig. 3, on U-shaped junction plate 20 longitudinally, lateral separation is laid with long slot bore 21, bolt connection assembly through long slot bore 21 removably connects U-shaped junction plate 20 and 10 formation of adjacent two sections of F rails, by long slot bore 21, can realize F rail 10 and bolt connection assembly lengthwise movement in the lump, discharge the longitudinal extension distortion that F rail causes because of the temperature difference.As a kind of typical configuration mode, the quantity of described long slot bore 21 is 4, longitudinally, lateral separation respectively lays 2.With reference to Fig. 2, for enlarge active surface, disperse the Bonding pressure of bolt connection assembly to U-shaped junction plate 20 and F rail 10, at U-shaped junction plate 20, be arranged with two reverse L-type pressing plates 22,3 groups of bolt connection assemblies of each L-type pressing plate 22 configuration are connected with one section of F rail 10.Bolt connection assembly generally includes hexagon socket cap head screw, plain washer, spring washer.On the wing rail 103 of each section of F rail 10 links, process three screwed holes, three L-shaped layouts of screwed hole, and the horizontal spacing of screwed hole should be greater than the width of the emergent support wheel of maglev vehicle and the horizontal stop gap that vehicle allows, and to avoid support wheel to roll, passes through screwed hole.
For guaranteeing vertical high residual quantity and the horizontal centering amount of two sections of F rails 10, with reference to Fig. 2 and Fig. 4, Fig. 5, on the sidewall of the outer leg 101 of described adjacent two sections of F rail 10 links, offer respectively flat key groove 11, the dovetail groove 12 of longitudinal extension, insert in the dovetail groove 12 on one section of F rail 10 one end of dovetail key 30, and the other end is fixedly connected in the flat key groove 11 of another section of F rail 10.Flat key groove 11 longitudinal direction length should approach the difference of dovetail key 30 length and reserved rail gap length and be advisable, to coordinate the installation of dovetail key 30.Dovetail key 30 first first embeds in the flat key groove 11 of first paragraph F rail 10, after the vertical discrepancy in elevation of two sections of F rails 10 regulates in right amount with horizontal centering amount, dovetail key 30 is pushed in the dovetail groove 12 of second segment F rail 10, reserve appropriate clearance, with welding material, dovetail key 30 one end and flat key groove 11 are welded and fixed again, thereby dovetail key 30 can be with the 10 together longitudinal extensions of second segment F rail, and discharge longitudinal free-extension of first paragraph F rail 10.Dovetail key 30 can apply the vertical relative motion restraint of the F rail larger compared with flat key, can also limit the horizontal relative motion of two sections of F rails 10 simultaneously.
Impact shock while rolling through rail gap for significantly reducing emergency vehicle support wheel, and can adapt to two sections of F rails 10 free-extension longitudinally, the longitudinal terminal surface of described adjacent two sections of F rail 10 links is oblique angle face or the right-angle folding face matching.With reference to Fig. 5, when support wheel rolls through this rail gap, the variation of support wheel and wing rail 103 contact planes is gradual changes, increases gradually, can reduce largely the impact shock that the sudden change of support wheel contact surface causes, has effectively reduced vibration when support wheel is crossed rail gap.While there is transverse movement bigger than normal for vehicle suspension frame is whole, this transition structure is still effective to the gradual effect of contact surface of emergent support wheel.With reference to Fig. 6, when support wheel is when design attitude (suspension rack does not produce the situation of lateral shift) rolls through this rail gap, first first paragraph F rail 10 and half roller contact, and bear its rolling and move ahead; Treat that cartwheel roll crosses rail gap, can bear second half wheel by second segment F rail 10 moves ahead, thereby while making support wheel cross rail gap, the impingement area of support wheel only has support wheel width half, the situation of having alleviated the contact surface sudden change that support wheel faces at rail gap place, can reduce the impact shock that support wheel bears.The transverse movement amount allowing when suspension rack is less than support wheel width one half, and the mentality of designing of this rail gap transition structure is all effectively, and the support wheel area that only two sections of right angle changeover portions bear is different, is also to alleviate the impact that existing parallel seams causes.
Some principles of a kind of middle low speed magnetic floating system track F rail joint design of the above the present invention that just explains through diagrams, be not the present invention to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the present invention applies for.
Claims (5)
1. low speed magnetic floating system track F rail joint design in a kind, its adjacent two sections of F rails (10) have outer leg (101), interior leg (102) and wing rail (103), it is characterized in that: the inside bottom of described adjacent two sections of F rails (10) link wing rails (103), outside sidewall offer respectively interior guide and limit groove (13), the outer guide and limit groove (14) of longitudinal extension, the openend of U-shaped junction plate (20) embeds in interior guide and limit groove (13), outer guide and limit groove (14); On U-shaped junction plate (20) longitudinally, lateral separation is laid with long slot bore (21), through the bolt connection assembly of long slot bore (21), U-shaped junction plate (20) and adjacent two sections of F rails (10) formation removably connected.
2. a kind of middle low speed magnetic floating system track F rail joint design as claimed in claim 1, it is characterized in that: the flat key groove (11), the dovetail groove (12) that on the sidewall of the outer leg (101) of described adjacent two sections of F rails (10) link, offer respectively longitudinal extension, insert in the dovetail groove (12) on one section of F rail (10) one end of dovetail key (30), and the other end is fixedly connected in the flat key groove (11) of another section of F rail (10).
3. a kind of middle low speed magnetic floating system track F rail joint design as claimed in claim 1, is characterized in that: the quantity of described long slot bore (21) is 4, longitudinally, lateral separation respectively lays 2.
4. a kind of middle low speed magnetic floating system track F rail joint design as claimed in claim 3, it is characterized in that: described U-shaped junction plate (20) is arranged with two reverse L-type pressing plates (22), 3 groups of bolt connection assemblies of each L-type pressing plate (22) configuration are connected with one section of F rail (10).
5. a kind of middle low speed magnetic floating system track F rail joint design as claimed in claim 1, is characterized in that: the longitudinal terminal surface of described adjacent two sections of F rails (10) link is oblique angle face or the right-angle folding face matching.
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| CN201410204326.6A CN103966928B (en) | 2014-05-14 | 2014-05-14 | A kind of medium-and low-speed maglev system track F rail joint design |
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| CN201410204326.6A CN103966928B (en) | 2014-05-14 | 2014-05-14 | A kind of medium-and low-speed maglev system track F rail joint design |
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| CN103966928A true CN103966928A (en) | 2014-08-06 |
| CN103966928B CN103966928B (en) | 2016-03-16 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452497A (en) * | 2014-12-15 | 2015-03-25 | 中铁第四勘察设计院集团有限公司 | F-type steel double-slit joint of low- and medium-speed maglev system |
| CN105484114A (en) * | 2015-12-31 | 2016-04-13 | 上海市安装工程集团有限公司 | Line type positioning device of F-shaped track panel |
| CN105603835A (en) * | 2016-03-14 | 2016-05-25 | 中铁第四勘察设计院集团有限公司 | I-shaped attachment joint for F-shaped steel rails |
| CN105603836A (en) * | 2016-03-14 | 2016-05-25 | 中铁第四勘察设计院集团有限公司 | Chute type attachment joint for F-shaped steel rails |
| CN105625113A (en) * | 2016-03-14 | 2016-06-01 | 中铁第四勘察设计院集团有限公司 | Semi-chute type connector for F-shaped steel rail |
| CN105625112A (en) * | 2015-12-22 | 2016-06-01 | 中铁第四勘察设计院集团有限公司 | Magnetic suspension traffic engineering rail supporting structure |
| CN105625114A (en) * | 2016-03-14 | 2016-06-01 | 中铁第四勘察设计院集团有限公司 | Buffer type connector for F-shaped steel rail |
| CN106192618A (en) * | 2016-07-04 | 2016-12-07 | 中铁第四勘察设计院集团有限公司 | Levitation gap signal can the section of track attachment means of continuous acquisition |
| CN106992417A (en) * | 2017-05-11 | 2017-07-28 | 湖南华品轨道交通有限公司 | A kind of joint for connecting conductor rail |
| WO2017157257A1 (en) * | 2016-03-14 | 2017-09-21 | 中铁第四勘察设计院集团有限公司 | Connecting joint for f-shaped steel rail |
| CN107740313A (en) * | 2017-10-13 | 2018-02-27 | 北京控股磁悬浮技术发展有限公司 | The track and its track joint of a kind of magnetic-levitation train |
| CN108547187A (en) * | 2018-06-15 | 2018-09-18 | 湖南磁浮技术研究中心有限公司 | Magnetic suspension train rail, the section of track and the F rail piecing devices that can uniformly adjust rail gap |
| CN110055833A (en) * | 2019-04-28 | 2019-07-26 | 中铁二院工程集团有限责任公司 | Medium-and low-speed maglev track structure F rail joint structure |
| CN111347334A (en) * | 2020-04-02 | 2020-06-30 | 中核武汉核电运行技术股份有限公司 | Automatic cleaning device and method for pressure vessel top cover sealing ring groove |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452497B (en) * | 2014-12-15 | 2016-07-06 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev system F shaped steel double slit jointing |
| CN104452497A (en) * | 2014-12-15 | 2015-03-25 | 中铁第四勘察设计院集团有限公司 | F-type steel double-slit joint of low- and medium-speed maglev system |
| CN105625112A (en) * | 2015-12-22 | 2016-06-01 | 中铁第四勘察设计院集团有限公司 | Magnetic suspension traffic engineering rail supporting structure |
| CN105484114A (en) * | 2015-12-31 | 2016-04-13 | 上海市安装工程集团有限公司 | Line type positioning device of F-shaped track panel |
| CN105484114B (en) * | 2015-12-31 | 2018-04-06 | 上海市安装工程集团有限公司 | A kind of line style positioner of the F types section of track |
| CN105625113A (en) * | 2016-03-14 | 2016-06-01 | 中铁第四勘察设计院集团有限公司 | Semi-chute type connector for F-shaped steel rail |
| CN105603835A (en) * | 2016-03-14 | 2016-05-25 | 中铁第四勘察设计院集团有限公司 | I-shaped attachment joint for F-shaped steel rails |
| CN105603836A (en) * | 2016-03-14 | 2016-05-25 | 中铁第四勘察设计院集团有限公司 | Chute type attachment joint for F-shaped steel rails |
| CN105625114A (en) * | 2016-03-14 | 2016-06-01 | 中铁第四勘察设计院集团有限公司 | Buffer type connector for F-shaped steel rail |
| WO2017157257A1 (en) * | 2016-03-14 | 2017-09-21 | 中铁第四勘察设计院集团有限公司 | Connecting joint for f-shaped steel rail |
| CN106192618A (en) * | 2016-07-04 | 2016-12-07 | 中铁第四勘察设计院集团有限公司 | Levitation gap signal can the section of track attachment means of continuous acquisition |
| CN106992417A (en) * | 2017-05-11 | 2017-07-28 | 湖南华品轨道交通有限公司 | A kind of joint for connecting conductor rail |
| CN106992417B (en) * | 2017-05-11 | 2023-06-30 | 湖南华品轨道交通有限公司 | Joint for connecting conductive rail |
| CN107740313A (en) * | 2017-10-13 | 2018-02-27 | 北京控股磁悬浮技术发展有限公司 | The track and its track joint of a kind of magnetic-levitation train |
| CN107740313B (en) * | 2017-10-13 | 2023-09-12 | 北京控股磁悬浮技术发展有限公司 | Track of magnetic levitation train and joint for track |
| CN108547187A (en) * | 2018-06-15 | 2018-09-18 | 湖南磁浮技术研究中心有限公司 | Magnetic suspension train rail, the section of track and the F rail piecing devices that can uniformly adjust rail gap |
| CN108547187B (en) * | 2018-06-15 | 2024-06-11 | 湖南磁浮技术研究中心有限公司 | F-shaped rail joint device capable of uniformly adjusting rail joints for magnetic suspension train rail and rail panel |
| CN110055833A (en) * | 2019-04-28 | 2019-07-26 | 中铁二院工程集团有限责任公司 | Medium-and low-speed maglev track structure F rail joint structure |
| CN111347334A (en) * | 2020-04-02 | 2020-06-30 | 中核武汉核电运行技术股份有限公司 | Automatic cleaning device and method for pressure vessel top cover sealing ring groove |
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