CN101377070B - Low speed magnetic floating system F rail seaming structure and processing method thereof - Google Patents
Low speed magnetic floating system F rail seaming structure and processing method thereof Download PDFInfo
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- CN101377070B CN101377070B CN2007100940430A CN200710094043A CN101377070B CN 101377070 B CN101377070 B CN 101377070B CN 2007100940430 A CN2007100940430 A CN 2007100940430A CN 200710094043 A CN200710094043 A CN 200710094043A CN 101377070 B CN101377070 B CN 101377070B
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Abstract
The present invention discloses an F rail seam structure, which is designed by adopting the normal conducting electromagnetic levitation technology and provided by a low-speed magnetic levitation system for the levitation and guiding of vehicles. The F rail seam structure has the following characteristics: the end of a F rail is milled into an embedding surface, so that a convex splicing part is formed; the end of the convex splicing part is shaped like a circular arc (or planar); circular arc-shaped (or planar) end surfaces are formed on the convex splicing part and a step formed on the upper and the lower ends of the body of the F rail; and a concave part and a circular arc-shaped (or planar) end surface which match the circular arc-shaped (or planar) end surfaces on the convex splicing part and the step are formed on the end surface of the other end of the F rail. While still ensuring rail seam expansion adjustment, vertical and lateral positioning and the rail expansion adjustment of a turnout, the F rail seam structure is simplified and can be easily centered in the process of machining and installation. The F rail seam structure not only can ensure the centering adjustment of rails but also can adjust the temperature-difference expansion of the rails and realize the stretching adjustment of the turning of the turnout. The F rail seam structure is generally used in a passive guiding type low-speed magnetic levitation system.
Description
Technical field
The present invention relates to the urban railway magnetic suspension system, particularly relate to a kind of seam construction of F shape ferromagnetism rail (hereinafter to be referred as the F rail) of the magnetic floating traffic pattern middle orbit that drives with normal conducting electromagnetic levitation and line inductance electromotor.The invention still further relates to the processing method of this F rail seaming structure.
Background technology
The low speed magnetic floating traffic system of using the normal conducting electromagnetic levitation technical design has adopted vehicle-mounted levitating electromagnet and track (F rail) to attract, and utilizes line inductance electromotor to drive and realizes the speed of service up and down with 100km/h.The gap (suspended state) that is keeping 8.0mm between the suspension magnet of maglev vehicle and the F rail, guiding then relies on the eccentric restoring force of suspension magnet to make car body get back to original position, is referred to as by action-oriented.As shown in Figure 1, vehicle-mounted levitating electromagnet 3 is with respect to the magnetic pole 8 of F rail 7, and the magnetic pole 8 of vehicle-mounted brake 6 and F rail 7 only leaves very little gap.The geometric position design decision of such vehicle and track the F rail must be in good installation site, otherwise certainly lead to the collision phenomenon of vehicle and track.
The installation of F rail is to form the section of track by transverse sleeper 2 in the fixing mode of high-strength bolt, then with the rail beam bolt.Such mounting means just exists F rail centering and adjusts problem, not only will be at vertical (Z to) and laterally (Y to) make every F rail centering, and to take into account the F rail in the vertical temperature difference of (X to) the adjustment problem of stretching.At these problems, Japan Patent JP4-153401, JP2003-184006 and U.S. Pat 5199674 have all proposed corresponding solution.
As shown in Figure 2, on main track, adopt mode, utilize pin key 8-1 that the F rail is carried out centering and adjust, can guarantee Z like this, can guarantee that again X adjusts the flexible function of the F rail temperature difference to having to the installation site at the end keyseat of F rail 7-1,7-2.
As shown in Figure 3, backbone 7 (F rail) has an outstanding position 9 in its end, can be inserted into dividually in the groove 10 in the end of corresponding magnetic pole 8.Ladder boss 11 that backbone 7 end upper trapezoid notches form and the trapezoidal recess 12 that forms on magnetic pole 8 are corresponding.Like this, magnetic pole 8 is supported with chimeric mutually trapezoidal recess 12 by backbone 7 and ladder boss 11.In order to make this location stretching structure fix in position, spacer 13 is fixing with backbone 7 by bolt 14; Make induction rail level 17 (the induction aluminium sheet face of induction linear electric motor) have seam, this F rail seaming structure as shown in Figure 4, can satisfy orbital curve, or the flexible adjustment of the rail gap of track switch bend requirement.
Though these track seam constructions can satisfy the basic demand of low speed magnetic floating circuit, in fact exist complex structure, centering and adjust difficulty, be difficult to the long-term problem such as original location that keeps.Too much additional accessory has increased the accident factor of seam construction, is disadvantageous hidden danger for safe operation.On the other hand, the machine difficulty of these seam constructions greatly also is the undeniable fact.The construction investment that causes thus also can increase.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of low speed magnetic floating system F rail seaming structure, guarantee that rail gap flexible (X to) is adjusted, simplified structure on the basis of the basic function of vertical (Z to) and horizontal flexible adjustment of track of (Y to) location, track switch (X to), be easy to machine and the centering location when installing.For this reason, the present invention also will provide a kind of processing method of this F rail seaming structure.
For solving the problems of the technologies described above, low speed magnetic floating system F rail seaming structure of the present invention, comprise, the mosaic surface that mills out in F rail end, wherein: described mosaic surface is meant that the end at described F rail forms the protrusion convergence part, the end of this protrusion convergence part is circular arc end face or plane, and the step place that two ends form about this protrudes convergence part and F rail body forms circular arc end face or plane; Form suitable recess and circular arc end face or the plane of circular arc end face or plane with described protrusion convergence part and step place at the end face of the other end of described F rail.
The method of processing low speed magnetic floating system F rail seaming structure of the present invention is to mill processing technology in the employing of the end of described F rail and mill out mosaic surface; Concrete grammar is to adopt two up and down milling cutters to process circular arc end face or the plane that described step place forms simultaneously in an end of described F rail, and form the protrusion convergence part thus, adopt the monolithic milling cutter directly to process described recess and circular arc end face or plane in the other end of described F rail.
The end mosaic surface of described F rail needs to handle through surface anticorrosion.
Because low speed magnetic floating system F rail seaming structure of the present invention adopts a machine (milling) to form the structure that inlay F rail end, realized the purpose that can both reach corresponding adjustment under the rail gap regularization condition of wanting of what is the need in office and guarantee F rail centering.
Taking all factors into consideration the machine ability and installing on the basis of easy degree, F rail seam of the present invention is adjusted the low speed magnetic floating system that structure is applicable to normal conducting electromagnetic levitation, demands such as the temperature difference of track (comprising track switch) is flexible, bend is flexible, centering adjustment; Simple in structure feasible, need not optional feature and complicated assembling; Installing and locating all can satisfy technical requirements under the flexible adjustment operating mode that needs when any temperature difference is stretched with the track switch transition easily; Can do preservative treatment at mosaic surface, make this F rail seam adjusting device improve application life; Need not special process for machining, utilize plain-milling machine just can produce this F rail seam guiding mechanism; Adjust structure with respect to existing F rail seam and can save the corresponding engineering investment.
In a word, F rail seaming structure of the present invention can guarantee the adjustment of the track centering of low speed magnetic floating traffic system, and it is flexible to adjust the track temperature difference again, realizes the elongation adjustment that track switch turns to, and can also simplify installation procedure and reduce investment outlay; The also corresponding minimizing of maintenance work in use.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is the schematic diagram that concerns between low speed magnetic floating vehicle and the track;
Fig. 2 is existing low speed magnetic floating system middle orbit centering loose tongue structural representation;
Fig. 3 is existing low speed magnetic floating system middle orbit F rail seaming structure schematic diagram;
Fig. 4 is the view of existing low speed magnetic floating system middle orbit seam when the F rail has corner;
Fig. 5 is the Crane Rail schematic diagram that adopts in the low speed magnetic floating traffic system that the present invention realizes;
Fig. 6 is a low speed magnetic floating system F rail seaming structure embodiment schematic diagram of the present invention;
Fig. 7 is a processing technology schematic diagram of realizing low speed magnetic floating system F rail seaming structure of the present invention.
Illustrate: 1: the concrete track girder construction; 1-1: power supply conductor rail; 2: transverse sleeper; 2-1:F rail set bolt; 2-2: transverse sleeper cushion block; 3: levitating electromagnet; 4: pantagraph current collector; 5: the compartment; 6: horizontal stop; The 7:F rail; 7-1: main F rail; 7-2: interlocking F rail; 7-3:F rail embedding face protrudes the convergence part; 7-4:F rail embedding face boss top; 7-5:F rail embedding face boss bottom; 7-6:F rail embedding face groove; 8:F rail magnetic pole; 8-1:F rail centering stopper; 9:F rail connecting bolt hole nose; The 10:F rail connects recessed end; The 11:F rail connects the nose step; The 12:F rail connects recessed end step; 13: bolt connects pressing plate; 14: connecting bolt; 15: the connecting bolt hole; 16: the straight line electricity connects the tablet side; 17: the linear electric motors sensitive surface; 18:F rail planing surface; 19: the minor diameter milling cutter of An Zhuaning up and down; 20: the major diameter milling cutter; α/2:F rail deflection angle.
The specific embodiment
In the low speed magnetic floating system F rail seaming structure embodiment of the present invention, simple in structure, be easy to processing.As shown in Figure 1, low speed magnetic floating vehicle 5 rides on and makes vehicle and track that following geometry site is arranged in orbit: the relative levitation gap that is keeping 8.0mm at vertical (Z to) of suspension magnet 3 and F rail 7, not having strict guiding clearance restriction at laterally (Y to), only is the automatic restoring force guiding that relies on suspension magnet 3.Keeping liquid braking device can finish the necessary gap of braking function (about 12.0mm) between vehicle-mounted mechanical brake and the F rail 7.The track of low speed magnetic floating system (F rail) can not can be produced as length continuously, also can consider temperature difference elongation, thus, require the seam of F rail 7 must guarantee in the restriction of relative geometry position of vehicle installation deviation to be arranged, also should consider the change in length of vertical (X to) of temperature difference elongation and track switch corner simultaneously.
As shown in Figure 5, F rail seaming structure of the present invention presents and simply inlays seam construction.When the F section of track that limits length (by the production capacity restriction) connection, have the F rail 7-1, the 7-2 that inlay end construction and just can be embedded in together.Because such section of track utilizes bolt 2-1 fixing with transverse sleeper 2 at laterally (Y to), and transverse sleeper 2 is fixing with rail beam 1 with cushion block 2-2, so only stay the flexible adjusting play of vertical (X to).
As shown in Figure 6, in the end of F rail 7-1,7-2 machining mosaic structure; End at F rail 7-1,7-2 processes protrusion convergence part 7-3, the end of this protuberance 7-3 is circular arc end face (or plane), and processes circular arc end face (or plane) 7-4,7-5 in the step place of two ends formation up and down at this protrusion convergence part 7-3 and F rail 7-1,7-2 body; Form suitable recess 7-6 and the circular arc end face (or plane) of circular arc end face (or plane) 7-4,7-5 with described protrusion convergence part 7-3 and step place at the end face of the other end of F rail 7-1,7-2, promptly form the concavo-convex mosaic surface that matches.Under the condition that guarantees the machine precision, this mosaic surface has limited vertical (Z to) displacement of F rail.Leave necessary collapsing length 10～30mm at vertically (X to), just can guarantee the length adjustment space of F rail (the F rail that comprises track switch).
As shown in Figure 7, realize that the F rail seaming structure that the present invention proposes can adopt common Milling Machine processing technology.Adopt the frock configuration of two up and down milling cutters 19 in the end of F rail 7-1, circular arc end face (or plane) 7-4,7-5 process simultaneously up and down, and convergence part 7-3 is protruded in formation thus.Adopt monolithic milling cutter 20 directly to process recess 7-6 in the end end of F rail 7-2.Because the precision of these milling cutters is guaranteed (satisfying the machine required precision of mosaic surface), so the final limit mounting precision of inlaying seam construction also can satisfy the joint technique condition of low speed magnetic floating system F rail 7.The F rail seaming structure that adopts aforesaid realization manufacture method of the present invention to realize just can present: novel F rail seaming structure simple in structure, as to be easy to install, be easy to safeguard, reduce investment and operation maintenance cost.
The seam construction of low speed magnetic floating track F rail is that the adjustable track difference variation causes flexible crucial interface components, and all there is too complicated situation in present track seam.Not only the F rail seaming structure needs many optional features, and centering is difficult to control when construction and installation are adjusted.These have increased construction investment and construction period virtually.The F rail seaming structure that the present invention proposes, be applicable to F rail that the difference variation of low speed magnetic floating traffic system middle orbit causes flexible adjust and F rail that the track deflection of track switch place is required in the demand of longitudinal length adjustment.This F rail seaming structure can guarantee the adjustment of track centering, and it is flexible to adjust the track temperature difference again, can also realize the elongation adjustment that track switch turns to.
Above accompanying drawings the specific embodiment of the present invention, for a person skilled in the art, some distortion and the improvement made in the scope of claim of the present invention also should belong to the scope of protection of the invention.
Claims (4)
1. low speed magnetic floating system F rail seaming structure with the normal conducting electromagnetic levitation technical design, comprise: the mosaic surface that mills out in F rail end, it is characterized in that: described mosaic surface is meant that the end at the F rail forms the protrusion convergence part, the end of this protrusion convergence part is circular arc end face or plane, and the step place that two ends form about this protrudes convergence part and F rail body forms circular arc end face or plane; Form suitable recess and circular arc end face or the plane of circular arc end face or plane with described protrusion convergence part and step place at the end face of the other end of described F rail.
2. low speed magnetic floating system F rail seaming structure as claimed in claim 1 is characterized in that: the protrusion convergence part of the F rail sets of recesses with another F rail is fitted over, and vertically leaving necessary collapsing length 10～30mm.
3. the method for a processing low speed magnetic floating system F rail seaming structure as claimed in claim 1 is characterized in that: mill processing technology in the employing of the end of described F rail and mill out mosaic surface; Concrete grammar is to adopt two up and down milling cutters to process circular arc end face or the plane that described step place forms simultaneously in an end of described F rail, and form the protrusion convergence part thus, adopt the monolithic milling cutter directly to process described recess and circular arc end face or plane in the other end of described F rail.
4. the processing method of low speed magnetic floating system F rail seaming structure as claimed in claim 3 is characterized in that: the end mosaic surface of described F rail needs handle through surface anticorrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100940430A CN101377070B (en) | 2007-08-28 | 2007-08-28 | Low speed magnetic floating system F rail seaming structure and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100940430A CN101377070B (en) | 2007-08-28 | 2007-08-28 | Low speed magnetic floating system F rail seaming structure and processing method thereof |
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| Publication Number | Publication Date |
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| CN101377070A CN101377070A (en) | 2009-03-04 |
| CN101377070B true CN101377070B (en) | 2011-10-19 |
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| CN2007100940430A Expired - Fee Related CN101377070B (en) | 2007-08-28 | 2007-08-28 | Low speed magnetic floating system F rail seaming structure and processing method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966928B (en) * | 2014-05-14 | 2016-03-16 | 中铁二院工程集团有限责任公司 | A kind of medium-and low-speed maglev system track F rail joint design |
| 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 |
| CN105839483A (en) * | 2016-05-12 | 2016-08-10 | 西南交通大学 | Permanent magnetic guide rail |
| 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 |
| CN113322725B (en) * | 2021-05-21 | 2022-05-17 | 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 and installation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199674A (en) * | 1990-09-26 | 1993-04-06 | Hsst Corporation | Multi-articulation switch |
| JP2881466B2 (en) * | 1990-03-06 | 1999-04-12 | 株式会社竹中工務店 | Orbit for normal-conduction magnetic levitation type linear motor car |
| CN1572973A (en) * | 2003-05-22 | 2005-02-02 | 阿尔斯通股份有限公司 | System for fixing rails on a structure like elevated railway |
| CN2782749Y (en) * | 2005-02-26 | 2006-05-24 | 中铁宝桥股份有限公司 | Flexible switch of magnet suspension joint |
-
2007
- 2007-08-28 CN CN2007100940430A patent/CN101377070B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2881466B2 (en) * | 1990-03-06 | 1999-04-12 | 株式会社竹中工務店 | Orbit for normal-conduction magnetic levitation type linear motor car |
| US5199674A (en) * | 1990-09-26 | 1993-04-06 | Hsst Corporation | Multi-articulation switch |
| CN1572973A (en) * | 2003-05-22 | 2005-02-02 | 阿尔斯通股份有限公司 | System for fixing rails on a structure like elevated railway |
| CN2782749Y (en) * | 2005-02-26 | 2006-05-24 | 中铁宝桥股份有限公司 | Flexible switch of magnet suspension joint |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2003-184006A 2003.07.03 |
| JP特开平5-255904A 1993.10.05 |
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Owner name: TONGJI UNIVERSITY Free format text: FORMER OWNER: SHANGHAI MAGNETIC SUSPENSION COMMUNICATION ENGINEERING TECHNOLOGY RESEARCH CENTE Effective date: 20131204 |
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