CN106049197A - Rigid telescopic rail connection device for high-speed railway, manufacture and installation method - Google Patents
Rigid telescopic rail connection device for high-speed railway, manufacture and installation method Download PDFInfo
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- CN106049197A CN106049197A CN201610597411.2A CN201610597411A CN106049197A CN 106049197 A CN106049197 A CN 106049197A CN 201610597411 A CN201610597411 A CN 201610597411A CN 106049197 A CN106049197 A CN 106049197A
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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
- E01B11/00—Rail joints
- E01B11/02—Dismountable rail joints
- E01B11/20—Dismountable rail joints with gap-bridging
- E01B11/22—Dismountable rail joints with gap-bridging by parts of the rails
- E01B11/26—Dismountable rail joints with gap-bridging by parts of the rails with interlocking rail ends
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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
- E01B29/17—Lengths of rails assembled into strings, e.g. welded together
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention provides a rigid telescopic rail connection device for a high-speed railway, a manufacture method and an installation method. The device comprises a first connection rail segment and a second connection rail segment; a first end railhead of the connection rail segment is provided with a piston-type cylinder body in longitudinal direction, an upper V-shape groove which is positioned on the railhead top surface and is communicated with the top of the piston-type cylinder body, and a V-shape lower comb tooth positioned on the rail base; a first end railhead of the second connection rail segment is provided with a piston which is matched with the piston-type cylinder in a sliding fit mode and a V-shape raised upper tooth which is matched with the upper V-shape groove in a sliding fit mode; a rail base of the second connection rail segment is provided with a lower V-shape groove which is in sliding fit with the V-shape lower comb tooth. The device has strong popularization property, and is telescopic, bending-resistant, dislocating-resistant and can reducing noise. The invention also provides a manufacture method and an installation method of the rigid telescopic rail connection device for a high-speed railway.
Description
Technical field:
The high-speed railway rigid telescopic type track that the present invention relates to a kind of scalable, counter-bending, error resilience position and noise reducing connects dress
Put and manufacture method and installation method.
Background technology:
China Express Railway quickly grows, and the high-speed railway mileage of built operation has reached 1.9 ten thousand kilometers, and " four indulge four horizontal strokes " is key
High-speed Railway Network basically forms.Build high-speed railway total kilometrage about 11000 kilometers, be planned for the year two thousand twenty high-speed railway operation mileage
It is up to 30,000 highways.Along with the swift and violent increase of operation high-speed railway mileage, the maintenance of track and maintenance, disease monitoring and detection
The workload such as diagnosis location, damage repair and consume rail replacing swashs sharp increase and adds.Wherein, serious shadow changed by damage repair and rail
Ring the operation of high-speed railway, even cause huge catastrophic loss or indirectly economic loss.According to statistics, common railway 1980
Year rail break reaches 1257, switches tracks and reaches 2616km；Within 1986, rail break reaches 1211, switches tracks and reaches 4005km；Nineteen ninety rail break reaches 751
Root, switch tracks nearly 5000km；Within 1992, rail break reaches 580, and switch tracks km more than 5000.Along with heavy-duty freight car linear load amount and train pass through
The increase of the frequency, even if in recent years because of rail refining technology and the raising of defect detection technical merit, the former rate of hindering of track constantly drops
Low, track damage recall rate improves constantly, but track injury event and rail break total amount are continuously increased, and this adds increased rail break and draw
Send out the potentially danger that catastrophic event occurs.
The reason of rail break be mostly track on the basis of genetic defects (refine, transport and the factor such as installation causes), by the cycle
Property the additional stress that produces of variations in temperature and the alternation complex stress condition effect such as train under, and roadbed " surprisingly " deformation generation
Additional stress effect under, rail genetic defects extends, or deformation of transfiniting, or fatigue deformation ruptures and causes.For understanding
Certainly problems, currently used track interconnection technique is as follows.
(1) short rail track interconnection technique.This technology is to arrange expansion joint, steel along the tens of rice of orbital spacing (general 25m)
Rail end face tack, end of rail both sides arrange two pieces of steel clamping plate, (coordinate rail and folder with along the moveable bolt of line direction
Bar shaped screw on plate) two one steel rails are linked together, i.e. " tack clamping plate type " track interconnection technique.To solve rail temperature
The additional stress caused etc. factor.On the other hand, bolt hole, to the weakening of track end section and Impact Load, makes again expansion joint
The probability of both sides track end section fracture increases, and then adds the risk of track fracture.The rail breakage of more than 60% according to statistics
Occurring at rail joint, its cost of repairs accounts for the 70% of the whole maintenance costs of circuit.
(2) gapless line large-spacing expansion joint track interconnection technique.This technology is similar to traditional " tack clamping plate type " track
Interconnection technique, simply uses the short rail of low thermal expansion, is welded into gapless line, and the spacing distance of expansion joint setting is relatively big, reaches number
Hundred meters to more than ten kilometers.This track interconnection technique solves the noise that " short rail track interconnection technique " exist to a certain extent and asks
Topic and rail gap section deformation of rail, the discontinuous structure problem of strength and stiffness.But track occurs in that a certain degree of temperature should
Power problem.
(3) continuous welded rail track interconnection technique.This technology is on the basis of " gapless line large-spacing expansion joint track interconnection technique ",
Use material more excellent further, the short rail that expansion rate is lower, it is welded as gapless line, the spacing distance of expansion joint setting is further
Strengthen, reach dozens of kilometres to several hundred kilometers.This track interconnection technique solves " short rail track interconnection technique " further and exists
Noise problem, and other such as rail gap section deformation of rail, the discontinuous structure problem of strength and stiffness, but rail temperature
Stress problem is more prominent.
(4) Railroad's Temperature Stress diffuses track interconnection technique.This technology is to set at long track and continuous welded rail track rail two ends
Putting rail stroke joint, the deformation of rail energy automatic sliding dissipates temperature stress；Or human at periodic intervals unclamps fastener, allow rail freely
The technology of deformation release temperature stress.This technology allows long rail string freely to stretch, and diffuses Railroad's Temperature Stress, reduces rail and breaks
The probability split.
(5) rail overlapping device track interconnection technique.This technology is along circuit certain intervals distance, or bridge circuit
Section arranges unidirectional or two-way " cutting bamboo formula " rail overlapping device, by actuator both sides rail relative to changing of the relative positions sliding, it is achieved rail
The dilatation displacement in road, maximum displacement-adjustable can reach 1000mm.So can reduce the temperature that the deformation of rail thermal expansion produces
Degree stress problem.
(6) gapless rail thermal expansion deformation obligates track interconnection technique.This technology is to utilize fastener by rail firmly
Be fixed on sleeper, because of between rail and sleeper, between sleeper and track plates, between track plates and roadbed and roadbed and roadbed
Between the frictional resistance that formed or resistance of deformation, decentralised control rail is in the longitudinal expansion compression of circuit or stretcher strain, by force
Make it to deform to rail laterally (cross section inner circumferential), be unlikely to rail deformation in a longitudinal direction thereof and be accumulated in local, and produce curved
Bent deformation or a technology of fracture.
The difficult problem that existing high-speed railway seamless track interconnection technique is faced:
In high speed railway track installation and debugging, even if using above-mentioned long rail or continuous welded rail track interconnection technique and diffusing rail temperature
Stress technique, and rail overlapping device track interconnection technique is installed, but these track interconnection techniques there is also respective skill
An art difficult problem.
(1) automatic or manual bulk storage Railroad's Temperature Stress technology.For automatically dissipating Railroad's Temperature Stress technology, because of rail
Expansion joint structure is complicated, the most less use；For manually dissipating Railroad's Temperature Stress, every subjob needs to expend substantial amounts of
Labour and time, operation is very inconvenient, because high-speed railway " skylight " time is short, limits the popularization and application of this technology.
(2) the most conventional " bamboo cuts formula " rail overlapping device track interconnection technique.Because of " bamboo cuts formula " rail stroke
When actuator produces longitudinally opposed displacement, laterally will produce " expansion ", if this being controlled meeting not in place cause the change of gauge,
Even make gauge exceed permissible range, cause the increase of train operating safety risk.
(3) in high speed railway track installation and debugging, even if using above-mentioned comprehensive track interconnection technique, but for round the clock
The north bigger with seasonal difference variation or highlands, or subgrade deformation sensitivity location, still can not be fully solved steel
The additional stress problem that rail causes because of variations in temperature and other factors.Such as the gapless rail of 303km length on Shanghai-Nanjing Railway Line, heat to be solved
The rail stroke gap at joint that swollen shrinkage problem only leans on quantity few is inadequate.
(4) gapless rail thermal expansion deformation obligates track interconnection technique, can solve the problem that rail heat to a certain extent
The problem of the compression concentration of local that the factors such as expansion cause, but solve rail extreme case (such as temperature difference larger area and
Roadbed local moderate finite deformation location) under stretcher strain even breakage problem very limited.
(5) above-mentioned track interconnection technique, particularly gapless line or continuous welded rail track interconnection technique, and gapless rail thermal expansion
Track interconnection technique is obligated in deformation, and its pulse compression stress focusing on solving rail thermal expansion generation and braking produce
Rail compression stress problem.The north bigger for day and night temperature or highlands and subgrade deformation sensitivity location, because of long steel
The differential settlement deformation of rail or the contraction distortion frequently of continuous welded rail track rail and roadbed, will produce by steel in steel-rail structure
The complex stress condition that rail axial tensile stress, bending local tensile stress are constituted with shear stress and axial torsion shear stress.
Rail is by under train wheel frequently lateral load action on this basis, original scarce present in rail refining process
The secondary defect fallen into and produce in later stage installation, debugging and running, the probability and the risk that produce spreading fracture will significantly
Increase.Having more sudden compared with the cutting property fracture of rail is disrumpent feelings with cutting property of pressure, and its randomness is higher, Detection location is difficult
Spend bigger.
Summary of the invention:
It is an object of the invention to the above-mentioned difficult problem faced for current high-speed railway gapless line and continuous welded rail track, the purpose of the present invention
It is to provide for strong scalable, counter-bending, the error resilience position of a kind of generalization and the high speed railway track rigid telescopic type of noise reducing
Orbit connection device.Another object of the present invention is to provide for the manufacture method of this orbit connection device.The present invention's
Further object is to provide for the installation method of this orbit connection device.
The object of the present invention is achieved like this:
High-speed railway rigid telescopic type orbit connection device of the present invention, including the first connection rail section, the second connection rail section, the
One connect be vertically arranged with on the first end rail head in rail section piston type cylinder body, be positioned at rail head end face and with piston type cylinder body
Upper V-groove that top communicates, being positioned at comb under the V-type on the flange of rail, second connects in rail section and has and piston on the first end rail head
The V-type projection upper comb dent that the piston that formula cylinder body is slidably matched and upper V-groove are slidably matched, the second connection rail section flange of rail has
The lower V-groove being slidably matched with comb under V-type.
Above-mentioned first connection rail section the second end, second connect and has standard linkage section respectively on rail section the second end, adds
Strong section, changeover portion, a length of place of changeover portion connects 0.2 0.3 times of the length of rail section, and the rail head height of strengthening segment divides
Not Wei 1.2 1.8 times of rail head height of track to be connected, the web of the rail height of strengthening segment, thickness are respectively track to be connected
The height of the web of the rail, thickness 0.7 0.9 times, 1.2 1.8 times, it is ensured that the strength and stiffness of rail connector rail section, it is ensured that steel
Rail attachment means rail section total height is consistent with same type standard gauge total height, and flange of rail section keeps constant, with respective type standard
Rail section is identical.
The manufacture method of high-speed railway rigid telescopic type orbit connection device of the present invention, comprises the following steps:
(1) according to railway norm and standard-required, respective type rail and bullet train load intensity are determined, by attachment means steel
Rail section and is reduced to three teeth combination beam in opposite directions in vertical plane in horizontal plane respectively, and two ends are fixed or hinged, and upside is vertically arranged
Car equivalent line load action, the sleeper under rail is reduced to the model that elastic foundation supports, according to the actual shape in combination beam cross section
Shape and size, cross-sectional area and pole inertia modulus equivalence principle, determine dimension rail comb teeth-shaped combination beam Cross-Section Rectangular etc.
Effect size；
(2) the equivalent combinations beam model determined according to step (1) and size, calculate internal force；Require to judge according to strcture safety
Its safety, if being unsatisfactory for specification requirement, adjusts combination beam size, then row calculates until meeting security requirement and being
Only；
(3) according to comb teeth-shaped rectangle combination beam equivalent dimension, required under inverse attachment means strengthening segment rail actual profile form
The size wanted, and utilize finite element digital analysis method to carry out structural simulation calculating, proof theory result of calculation, i.e. consider that it converts
Difference on structural mechanics, is tested by numerical computations or structural mechanics and determines its correction factor, adjust with reference to having if desired
Limit unit numerical result adjusts attachment means rail section rail section size again, until meeting deformation, strength and stiffness change
Continuously and till smooth-going；
(4) according to the maximal dilation amount required for single orbit connection device, designed path attachment means Len req is calculated；
(5) the attachment means size determined according to above-mentioned steps, designs and produces forging mold, refines matter according to similar specification rail
Amount selection of control parameter steel embryo, casts；
(6) according to railway associated specifications and associated mechanical process technology specification, foundry goods is carried out appearance polishing processing so that it is
Meet the requirement of respective classes Rail Technical Standard；
(7) according to railway associated specifications and associated mechanical process technology specification, to the piston cylinder in orbit connection device
Body carries out the corresponding magnitude of interference of machining, machining accuracy and requirement, should meet Machining Technology code requirement；
(8) according to railway associated specifications and associated mechanical process technology specification, the piston in attachment means is carried out machinery
Processing；
(9) by the part that processing and fabricating is good, formed " high-speed railway rigid telescopic type orbit connection device ".
The manufacture method of above-mentioned high-speed railway rigid telescopic type orbit connection device, it is characterised in that include following step
Rapid:
(1) orbit connection device that will assemble, is placed in smooth ground or platform, carries out retractility and activeness test and adjusts
Examination；Require that orbit connection device had both had expansion performance nimbly and freely, under certain precision, have again certain directivity, without substantially
Transverse shakiness characteristic；
(2) according to orbit Design needs, orbit connection device is connected with the common steel rail in butt welding of respective type.Two ends are welded respectively
It is connected on the common rail in both sides, is placed in the rail groove of track plates；
(3) reserved: expansion joint width
(4) remaining job step is consistent with common rail installation and debugging with requirement.
In orbit connection device of the present invention, the first connection rail section cylinder body is on full piston/cylinder architecture basics, for understanding
Certainly wheel rolling smoothly transition and rail longitudinally free telescopic displacement space problem on rail level, rail level arrange " V " shape opening from
And form half piston type cylinder body, solve wheel rolling smoothly transition on rail level, rail longitudinally free telescopic displacement space problem
With laterally limit its displacement problem, second connect rail section rail level " V " shape projection upper comb dent is set, with half piston cylinder operator
Cylinder body constitutes half piston type retractable structure, defines the rail head half piston type housing structure of rail longitudinally free sliding.
The free stretching structure of the flange of rail " V " font, in order to limit rail longitudinally free telescopic displacement during, flange of rail generation is laterally transfinited position
Move, the flange of rail expansion joint setting one-tenth " V " font form, the i.e. free stretching structure of the flange of rail " V " font, piston/cylinder " V " font opening,
Piston cylinder (core) " V " font raised body and the flange of rail " V " character form structure, together constitute the half free stretching structure of piston type at water
" comb " shape form in plane.In order to ensure rail strength and stiffness in sectional elevation, vertically roll at train wheel
The ride comfort that alternate load effect Train runs, arranges " dovetail groove " shape dentation, groove and the end of tooth in rail sectional elevation
Portion reserves expansion joint and collectively forms rail perpendicular for rail longitudinally free dilatation displacement, rectangle dovetail groove and rectangular teeth
Interior " comb teeth-shaped " structure in rail perpendicular and " comb teeth-shaped " structure on horizontal plane, collectively form rail " double comb
Shape " free stretching structure, " the double comb teeth-shaped of half piston type " structure should have certain rigidity in level and perpendicular, just
Be formed as " the double comb teeth-shaped rigid telescopic type orbit connection device of half piston type ".
Apparatus of the present invention are scalable, counter-bending, error resilience position, noise reducing are effective, solve existing track interconnection technique
The most unsolved difficult problem, generalization is strong.Manufacture method of the present invention can guarantee that the fabricating quality of device.The installation method side of the present invention
The simplest.
Accompanying drawing illustrates:
Fig. 1 is attachment means separation schematic diagram of the present invention.
Fig. 2 is attachment means structural representation of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the first connection rail segment structure schematic diagram.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the A A profile in Fig. 4.
Fig. 7 is the B B profile in Fig. 4.
Fig. 8 is the C C profile in Fig. 4.
Fig. 9 is the top view in Fig. 4.
Figure 10 is the second connection rail segment structure schematic diagram.
Figure 11 is the left view of Figure 10.
Figure 12 is the D D profile in Figure 10.
Figure 13 is the E E profile in Figure 10.
Figure 14 is the F F profile in Figure 10.
Figure 15 is the top view in Figure 10.
Figure 16 is attachment means track installation schematic diagram.
Figure 17 is the J J sectional view in Figure 16.
Figure 18 is the K K sectional view in Figure 16.
Detailed description of the invention:
See Fig. 1～Figure 15, the present embodiment high-speed railway rigid telescopic type orbit connection device, including the first connection rail section 1,
Second connects rail section 2.It is vertically arranged with piston type cylinder body 4 on the first end rail head 3 in first connection rail section, is positioned at rail
Face, the crown and the upper V-groove 5 communicated with piston type cylinder body top, it is positioned at comb 6 under the V-type on the flange of rail.Second connects rail section
In have the V-type projection upper comb dent that the piston 8 being slidably matched with piston type cylinder body and upper V-groove be slidably matched on the first end rail head 7
9.Have, on the second connection rail section flange of rail 10, the lower V-groove 11 being slidably matched with comb under V-type.First linkage section the second end,
First standard linkage section the 12, first fillter section the 13, first strengthening segment the 14, second standard is had respectively on two connection rail section the second ends
Linkage section the 15, second changeover portion the 16, second strengthening segment 17.A length of the first of First Transition section connects the length of rail section
0.2 times, a length of the second of the second changeover portion connects 0.2 times of rail section.First connection rail section, the second connection rail section add
The rail head height of strong section is respectively 1.5 times of the rail head height of track strengthening segment to be connected.First connects rail section, the second connection
The web of the rail height of rail section strengthening segment, thickness be respectively the strengthening segment web of the rail height of track to be connected, 0.8 times of thickness, 1.5
Times.
The manufacture method of the present embodiment high-speed railway rigid telescopic type orbit connection device, comprises the following steps:
(1) according to railway norm and standard-required, respective type rail and bullet train load intensity are determined, by attachment means steel
Rail section is respectively in horizontal plane and be reduced to " three teeth combination beam in opposite directions " in vertical plane, and two ends are fixed or hinged, and upside is by vertical
Train equivalent line load (consideration dynamic effect) acts on, and the sleeper under rail is reduced to the model that elastic foundation supports, according to
Combination beam cross section true form and size, cross-sectional area and pole inertia modulus equivalence principle, determine dimension rail comb teeth-shaped
Combination beam Cross-Section Rectangular equivalent dimension；
(2) the equivalent combinations beam model determined according to (1st) step and size, calculate internal force；Require to judge according to strcture safety
Its safety, if being unsatisfactory for specification requirement, adjusts combination beam size, then row calculates until meeting security requirement and being
Only；
(3) according to comb teeth-shaped rectangle combination beam equivalent dimension, under inverse orbit connection device strengthening segment rail actual profile form
Required size.And utilize finite element digital analysis method to carry out structural simulation calculating, proof theory result of calculation, i.e. consider it
Conversion difference on structural mechanics, is tested by numerical computations or structural mechanics and determines its correction factor, the if desired company of adjustment
Connection device rail section actual rail section size.Attachment means rail section rail section is again adjusted with reference to finite element numerical result of calculation
Size, changes continuously and till smooth-going until satisfied deformation, strength and stiffness；
(4) according to the maximal dilation amount required for single Extensible connection device, design attachment means Len req is calculated；
(5) the attachment means size determined according to above-mentioned steps, designs and produces forging mold, refines matter according to similar specification rail
Amount selection of control parameter steel embryo, casts；
(6) according to railway associated specifications and associated mechanical process technology specification, map is illustrated according to Fig. 1～Figure 15, to casting
Part carries out appearance polishing processing so that it is meet the requirement of respective classes Rail Technical Standard；
(7) according to railway associated specifications and associated mechanical process technology specification, according to part schematic diagram in Fig. 4～Fig. 9, right
Half piston type rail section cylinder body in attachment means carries out machining.Wherein ends processing needs lathe；Groove face and " V " word
Shape mouth end face needs milling machine and planer etc. to carry out machining；Cylinder interior processing need to complete with boring machine.Machining accuracy and
The corresponding magnitude of interference required, should meet Machining Technology code requirement；
(8) according to railway associated specifications and associated mechanical process technology specification, according to part schematic diagram in Figure 10～Figure 15,
Half piston type rail section cylinder (core) in attachment means is carried out machining.Wherein, ends processing needs lathe；Concave surface
" V-arrangement key " side needs the mechanical implement such as milling machine and planer to be processed；The processing of cylinder surrounded surface need to complete with washing bed；
Above-mentioned parts machining is possible with Digit Control Machine Tool and completes；
(9) by the part that processing and fabricating is good, assemble shown in Fig. 1～Figure 15, form " the double comb teeth-shaped of half piston type
Rigid track concertina type attachment means ".
See Figure 16～Figure 18, the installation method of the present embodiment high-speed railway rigid telescopic type orbit connection device, including
Following steps:
(1) attachment means that will assemble, is placed in smooth ground or platform, carries out retractility and activeness test and debugging；Want
Ask attachment means both to have expansion performance nimbly and freely, under certain precision, have again certain directivity, without the most laterally shaking
Dynamic characteristic.
(2) according to orbit Design needs, orbit connection device is connected with the common steel rail in butt welding of respective type.First even
Connect rail section the second end, the second the second end connecting rail section is respectively welded on the common rail in both sides, is placed in track plates 18
In rail groove；
(3) expansion joint width is reserved, determines according to factors such as weather, the temperature laid a railway track when installing.In south, temperature is installed low
Time, expansion joint should be stayed wider；Temperature Gao Shike is installed and stays smaller.In the north or highlands, stretch under identical mounting condition
Contracting seam reserved value is larger accordingly；
(4) remaining job step is consistent with common rail installation and debugging with requirement.Free Extensible connection device maintenance and maintenance
In, emphasis is it should be noted that its internal reservation gap can not be blocked by foreign material, and the hardest foreign material block.
Above-described embodiment is that the foregoing to the present invention is described further, but this should not being interpreted as, the present invention is above-mentioned
The scope of theme is only limitted to above-described embodiment.All technology realized based on foregoing belong to protection scope of the present invention.
Claims (4)
1. high-speed railway rigid telescopic type orbit connection device, it is characterised in that include the first connection rail section, the second connection steel
Rail section, first connect be vertically arranged with on the first end rail head in rail section piston type cylinder body, be positioned at rail head end face and with work
Upper V-groove that plug cylinder body top communicates, being positioned at comb under the V-type on the flange of rail, second connects in rail section on the first end rail head
Having the V-type projection upper comb dent that the piston being slidably matched with piston type cylinder body and upper V-groove are slidably matched, second connects rail section
The lower V-groove being slidably matched with comb under V-type is had on the flange of rail.
2. high-speed railway rigid telescopic type orbit connection device as claimed in claim 1, it is characterised in that first connects rail
Section the second end, second connect on rail section the second end and have standard linkage section, changeover portion, strengthening segment respectively, changeover portion a length of
Place connects 0.2 0.3 times of the length of rail section, the rail head height that rail head height is track to be connected of strengthening segment
1.2 1.8 times, the web of the rail height of strengthening segment, thickness be respectively the web of the rail height of track to be connected, 0.7 0.9 times of thickness,
1.2 1.8 times.
3. the manufacture method of high-speed railway rigid telescopic type orbit connection device, it is characterised in that comprise the following steps:
(1) according to railway norm and standard-required, determine respective type rail and bullet train load intensity, track is connected dress
Putting rail section and and be reduced to three teeth combination beam in opposite directions in vertical plane in horizontal plane respectively, two ends are fixed or hinged, and upside is by perpendicular
To train equivalent line load action, the sleeper under rail is reduced to the model that elastic foundation supports, real according to combination beam cross section
Border shape and size, cross-sectional area and pole inertia modulus equivalence principle, determine dimension rail comb teeth-shaped combination beam section square
Shape equivalent dimension；
(2) the equivalent combinations beam model determined according to step (1) and size, calculate internal force；Require to judge according to strcture safety
Its safety, adjusts combination beam size, then row calculates till meeting security requirement；
(3) according to comb teeth-shaped rectangle combination beam equivalent dimension, required under inverse attachment means strengthening segment rail actual profile form
The size wanted, and utilize finite element digital analysis method to carry out structural simulation calculating, proof theory result of calculation, i.e. consider that it converts
Difference on structural mechanics, is tested by numerical computations or structural mechanics and determines its correction factor, adjust with reference to having if desired
Limit unit numerical result adjusts attachment means rail section rail section size again, until meeting deformation, strength and stiffness change
Continuously and till smooth-going；
(4) according to the maximal dilation amount required for single orbit connection device, designed path attachment means Len req is calculated；
(5) the orbit connection device size determined according to above-mentioned steps, designs and produces forging mold, refines according to similar specification rail
Quality-controlling parameters processed selects steel embryo, casts；
(6) according to railway associated specifications and associated mechanical process technology specification, foundry goods is carried out appearance polishing processing so that it is
Meet the requirement of respective classes Rail Technical Standard；
(7) according to railway associated specifications and associated mechanical process technology specification, to the piston cylinder in orbit connection device
Body carries out the corresponding magnitude of interference of machining, machining accuracy and requirement, should meet Machining Technology code requirement；
(8) according to railway associated specifications and associated mechanical process technology specification, the piston in orbit connection device is carried out
Machining；
(9) part that processing and fabricating is good is assembled to form high-speed railway rigid telescopic type orbit connection device.
4. the manufacture method of high-speed railway rigid telescopic type orbit connection device, it is characterised in that comprise the following steps:
(1) orbit connection device assembled is placed in smooth ground or platform, carries out retractility and activeness test and debugging；
Require that orbit connection device had both had expansion performance nimbly and freely, under certain precision, have again certain directivity, without significantly
Transverse shakiness characteristic；
(2) according to orbit Design needs, being connected with the common steel rail in butt welding of respective type by orbit connection device, first connects steel
Second end of rail section, the second the second two ends connecting rail section are respectively welded on the common rail in both sides, are placed in the rail of track plates
In road groove；
(3) reserved expansion joint width
(4) remaining job step is consistent with common rail installation and debugging with requirement.
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| CN201610597411.2A CN106049197B (en) | 2016-07-27 | 2016-07-27 | High-speed railway rigid telescopic type orbit connection device and making and installation method |
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| CN201610597411.2A CN106049197B (en) | 2016-07-27 | 2016-07-27 | High-speed railway rigid telescopic type orbit connection device and making and installation method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716321Y (en) * | 2004-03-18 | 2005-08-10 | 朱海斌 | Tenon-shaped end rail |
| CN201148578Y (en) * | 2007-12-29 | 2008-11-12 | 陈力求 | Inserted type non-fish plate rail joint connector |
| KR20090058252A (en) * | 2007-12-04 | 2009-06-09 | 문성규 | Connectable railroad rail |
| CN201339149Y (en) * | 2008-12-26 | 2009-11-04 | 任柯融 | Rail clearance connecting device |
| CN101942787A (en) * | 2009-12-16 | 2011-01-12 | 贺晓东 | Joint method for eliminating vibration and noise of railway rail |
| CN103628367A (en) * | 2012-08-22 | 2014-03-12 | 许春雷 | Train rail capable of reducing noise and vibration |
| CN205954414U (en) * | 2016-07-27 | 2017-02-15 | 西南交通大学 | High -speed railway rigidity concertina type between tracks connection device |
-
2016
- 2016-07-27 CN CN201610597411.2A patent/CN106049197B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716321Y (en) * | 2004-03-18 | 2005-08-10 | 朱海斌 | Tenon-shaped end rail |
| KR20090058252A (en) * | 2007-12-04 | 2009-06-09 | 문성규 | Connectable railroad rail |
| CN201148578Y (en) * | 2007-12-29 | 2008-11-12 | 陈力求 | Inserted type non-fish plate rail joint connector |
| CN201339149Y (en) * | 2008-12-26 | 2009-11-04 | 任柯融 | Rail clearance connecting device |
| CN101942787A (en) * | 2009-12-16 | 2011-01-12 | 贺晓东 | Joint method for eliminating vibration and noise of railway rail |
| CN103628367A (en) * | 2012-08-22 | 2014-03-12 | 许春雷 | Train rail capable of reducing noise and vibration |
| CN205954414U (en) * | 2016-07-27 | 2017-02-15 | 西南交通大学 | High -speed railway rigidity concertina type between tracks connection device |
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| Publication number | Publication date |
|---|---|
| CN106049197B (en) | 2018-04-20 |
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