CN108867202A - A kind of alloy steel fork heart that unitary tape wing rail is increased - Google Patents
A kind of alloy steel fork heart that unitary tape wing rail is increased Download PDFInfo
- Publication number
- CN108867202A CN108867202A CN201811094835.2A CN201811094835A CN108867202A CN 108867202 A CN108867202 A CN 108867202A CN 201811094835 A CN201811094835 A CN 201811094835A CN 108867202 A CN108867202 A CN 108867202A
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- China
- Prior art keywords
- rail
- heart
- wing rail
- alloy steel
- wing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 39
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005299 abrasion Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 2
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000011295 pitch Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Lowering Means (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of alloy steel fork hearts that unitary tape wing rail is increased, it is related to track field, for the molding integral structure of overall processing, wing rail including heart rail and heart rail two sides, the upper surface of the alloy steel fork heart and adjacent rail part are contour, heart rail pointed end inclination, the wing rail are at least higher than the heart rail in the position at heart rail tip, at the top of the wing rail in be sloped downwardly and slope is adapted to shape of the wheel tread at the wing rail.The present invention substantially prolongs the stability and safety of the service life of the fork heart, wheel operation.
Description
Technical field
The present invention relates to track fields, and in particular to a kind of alloy steel fork heart that unitary tape wing rail is increased.
Background technique
Accelerate brought huge traffic pressure to alleviate Process of Urbanization Construction paces, Construction of Urban Rail Traffic is as city
The emphasis of city's traffic system development is simultaneously grown rapidly in recent years.Since the wearability of the fork heart of steel alloy is stronger, use
Service life pitches one times or more of the heart in potassium steel.So being adopted on high-speed railway or the operating condition more demanding to fork heart service life
Frequency with the alloy steel fork heart is very high.But the widely used alloy steel fork heart of existing market some use pin-connected panel steel alloy
The heart is pitched, structure is complicated, and processing and assembly are all relatively difficult.Therefore now in the case where more and more using monolithic construction
The alloy steel fork heart, as shown in Figure 10, especially in urban track traffic.Wheel slot is directly process on monolith plate,
Process it is fairly simple, without splicing during installation.Although the monoblock type alloy steel fork heart is steady in preferred wear-resistant metal material and structure
There is advantage in terms of qualitative and intensity, but also have the defect of its own.
Such as application No. is the utility model patents of CN 201720645234.0 to provide a kind of grooved track trouble railway frog knot
Structure, frog is process using integrally formed mode in the structure.There is no the equipment adjustment process of assembling combination railway frog, compares
It is low to cast potassium steel frog machine-shaping difficulty, has in terms of preferred wear-resistant metal material and structural stability and intensity excellent
Gesture.However this structure also has disadvantage, wheel tread of the wheel on rail as shown in Figure 5 in addition to working edge contact portion
It is not contacted in rail generally, but the heart rail due to pitching the heart will generally reduce height in tip location, wheel is logical from heart rail tip
It crosses in the CloseTrack process after reaching, wheel load is gradually transitions wing rail by heart rail bearing, and wheel center of gravity fluctuates up and down.Generate vibration
And impact.Therefore the stability and safety of driving are not only largely effected on, longtime running also causes serious friction to damage in the fork heart
Consumption.
Summary of the invention
The purpose of the present invention is to provide a kind of alloy steel fork hearts that unitary tape wing rail is increased, and overcome and pitch in the prior art
The heart is easy the abrasion that collides with wheel in heart rail tip transition portion, not only influences roadability and safety, is also easy to
It is worn and reduces the defect of service life.
The alloy steel fork heart that the unitary tape wing rail is increased is the molding integral structure of overall processing, including heart rail
With the wing rail of heart rail two sides, the upper surface of the alloy steel fork heart and adjacent rail part are contour, the heart rail pointed end
Inclination, the wing rail are at least higher than the heart rail in the position at heart rail tip, at the top of the wing rail in be sloped downwardly
And slope is adapted to shape of the wheel tread at the wing rail.
Preferably, heart rail tip includes tilting down the transitional region for gradually decreasing and contacting with wheel tread, described
Orbital direction of the wing rail from the transitional region towards another side is divided into ascent stage, horizontal segment and descending branch, the rising
Section is the chamfered portion that the wing rail is raised upwards towards the heart rail tip direction, the level corresponding with the transitional region
Section is wing rail effective coverage corresponding with the fork idle space of the heart on the wing rail, and the descending branch is the wing rail warp
Cross the chamfered portion highly declined after the idle space.
Preferably, the descending branch is located at the outside of track, and carries wheel portion height completely in the track and be lower than
The upper surface of the alloy steel fork heart forms groove, and the groove accommodates protrusion of the abrasion rear wheel on the outside of the track
Point.
Preferably, the wing rail overhead height and the wheel tread bottom level at this are adapted everywhere, everywhere the wing
The width that rail width is equal to wheel tread subtracts the resulting difference of distance of heart rail working edge to the wing rail at this.
Preferably, the convex surface on the inside of the wing rail to match with wheel tread and wheel-rim shape.
Preferably, the slope at the top of the wing rail is 1:10~1:40.
Preferably, the superstructure including substructure and equipped with the heart rail and the wing rail, the substructure are
The plate structure of low-alloy steel manufacture, the superstructure are made of high-strength abrasion-proof steel plate, and the superstructure is welded and fixed
In the substructure.
Preferably, the low-alloy steel is Q345 steel plate, the high-strength abrasion-proof steel plate is NM400 steel plate.
Preferably, the height of the heart rail and adjacent rail part coupling part is equal to the upper table of the alloy steel fork heart
Face.
The advantage of the invention is that：Higher-height wing rail, wing rail top droop is arranged in heart rail tip portion in the present invention
Adapt to the gradient of corresponding position wheel tread.Wheel is when being transitioned into wing rail part by pitching apex of the heart end, at the top of higher wing rail
It plays a supporting role to wheel tread, guarantees that wing rail is contacted with wheel perfection, realize the receiving pressure reduced on unit area
Effect, and the pressure is constant in tip location.By this improvement, in the premise for retaining monoblock type dark fund steel fork heart advantage
Under, the present invention substantially prolongs the stability and safety of the service life of the fork heart, wheel operation.
By using NM400 material, makes to pitch the heart with high-intensitive and high-wearing feature, improve the fork heart along with wing rail is increased
Stress, increase the fork heart and the contact area of wheel improve supportive, extend service life and the safety in utilization of the fork heart.
And bottom Q345 has preferable welding performance, overall structure is more firm, has structure simple, and later period built-up welding maintenance is more square
Just the features such as.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the alloy steel fork heart that unitary tape wing rail is increased of the present invention；
Fig. 2 is structural schematic diagram of the structure middle section shown in Fig. 1 at side visual angle；
Structural schematic diagram of the Fig. 3 for wing rail in structure shown in Fig. 1 at side visual angle；
Fig. 4 is the cross-sectional view for rising fragment position in the present invention；
Fig. 5 is the cross-sectional view of horizontal fragment position in the present invention；
Fig. 6 is the cross-sectional view for declining fragment position in the present invention
Fig. 7 is structural schematic diagram of the wheel when running on rail after wearing away in the present invention；
Fig. 8 has structural schematic diagram when wheel operation for horizontal segment in the present invention；
Fig. 9 has structural schematic diagram when wheel operation for the ascent stage in the present invention；
Figure 10 is the structural schematic diagram that prior art medium alloy steel pitches the heart.
In above-mentioned attached drawing：1, superstructure, 11, idle space, 2, heart rail, 21, transitional region, 3, substructure, 4,
Weld seam, 5, wing rail, 51, ascent stage, 52, horizontal segment, 53, descending branch, 6, wheel tread, 61, protrusion part, 7, working edge.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making further details of theory to the specific embodiment of the invention
It is bright, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical solution
Solution.
As shown in figs. 1-9, the present invention provides a kind of alloy steel fork heart that unitary tape wing rail is increased, overall processing at
The integral structure of type, the superstructure 1 including substructure 3 and equipped with heart rail 2 and wing rail 5.The substructure 3 is low conjunction
The plate structure of golden steel making, material are that low-alloy steel is Q345 steel plate.The superstructure 1 is by high-strength abrasion-proof steel plate system
At high-strength abrasion-proof steel plate is NM400 steel plate.Superstructure 1 is weldingly fixed on the substructure 3, and there are welderings therebetween
Two kinds of materials can be welded together to form the fork heart of " sandwich " form, welding by seam 4 using carbon-dioxide arc welding method
Before take preheating step appropriate, to prevent the generation of cold crack, preheating temperature is controlled at 100~150 DEG C.Can also use can
Other capable welding manners, such as arc welding, Flash Butt Welding.
Traditional potassium steel fork heart pitches the heart using potassium steel one piece casting type.High manganese steel material is widely used in state's iron
In track switch, it is primarily due to the characteristic that this kind of material has shock peening, and have preferable toughness, even if using in this way
There is slight crack in surface in the process, can also have time enough to go to cope with this kind of disease.But this kind fork heart is due to being casting shape
Formula, both ends cannot weld, and its type is limited, can not apply in customizing stronger project.
NM400 material, which makes to change one's course of action, pitches intensity and wearability with higher, and bottom Q345 material has preferable weldability
Can, overall structure is more firm, and structure is simple, and the features such as more convenient is repaired in later period built-up welding.
Processing forms heart rail 2 and the wing rail 5 positioned at 2 two sides of heart rail at the top of superstructure 1.The inclination of 2 pointed end of heart rail,
Wing rail 5 is at least higher than the heart rail 2 in the position at 2 tip of heart rail, is sloped downwardly in 5 top of the wing rail and slope
It is adapted to shape of the wheel tread 6 at the wing rail 5.Wing rail 5 is processed on whole block material using CNC program when processing to add
High face.The upper surface of the alloy steel fork heart and adjacent rail part are contour, heart rail 2 and adjacent rail part coupling part
Height be equal to the alloy steel fork heart upper surface.Wing rail 5 and the adjacent rail part coupling part also upper table with the fork heart
Face is contour, the up-down vibration generated when reducing wheel in this way by pitching the heart.
2 tip of heart rail includes tilting down the transitional region 21 for gradually decreasing and contacting with wheel tread, the wing rail 5
Orbital direction from the transitional region 21 towards another side is divided into ascent stage 51, horizontal segment 52 and descending branch 53.It is described
Ascent stage 51 is the chamfered portion that the wing rail 5 is raised upwards towards 2 tip direction of heart rail, right with the transitional region 21
It answers.The horizontal segment 52 is wing rail effective coverage corresponding with the fork idle space 11 of the heart on the wing rail 5, with rising
51 highest point heights of section are concordant, and 52 height of horizontal segment is in 1.5~3.5mm.Descending branch 53 is the wing rail 5 by described harmful empty
Between the chamfered portion that highly declines after 11.The descending branch 53 is located at the outside of track, and carries wheel completely in the track
Partial Height forms groove lower than the upper surface of the alloy steel fork heart, and the groove accommodates abrasion rear wheel outside the track
The protrusion part 61 of side.Wheel forms pit under the attrition of grider rail rail head after long-term use as shown in Figure 7, accordingly
The exterior portion of wheel tread form corresponding protrusion part 61, wheel in the minds of fork after idle space 11, pit
Contact fork the heart track and protrude part 61 then with fork in the heart surface collide and rub, this produces very traffic safety
Detrimental effect.The present invention has opened up groove when designing wing rail 5, in the part of track carrying vehicle wheel, and wheel passes through 5 mistake of wing rail
It crosses and protrusion part 61 is allowed to enter groove, avoiding it with fork, surface generates collision friction in the heart, improves the safety of the alloy steel fork heart
Property and service life.
It carries the 5 atop part height of wing rail of wheel and 6 bottom level of wheel tread at this is adapted, everywhere the wing
The working edge 7 that the width that 5 width of rail is equal to wheel tread 6 subtracts heart rail 2 at this arrives the resulting difference of distance of the wing rail 5.Institute
Stating is the convex surface to match with wheel tread 6 and wheel-rim shape on the inside of wing rail 5, the transition face of the wheel rim root of the convex surface and wheel
To cooperation, wheel is carried as working edge 7.According to common wheel shape, the slope at 5 top of wing rail is 1:10~1:
40。
Due to the special structure type in fork apex of the heart end, when wheel is by fork apex of the heart end, wheel tread 6 connects with fork heart top surface
Contacting surface product constantly reduces as wheel advances.Continuous, uniform support, pairing can be provided to wheel in order to guarantee to pitch the heart
The wing rail 5 of the golden steel fork heart is raised, and in order to guarantee that wing rail 5 is contacted with wheel perfection, the gradient and wheel pedal at 5 top of wing rail
The gradient in face 6 is consistent.5 height of wing rail is gradually increasing during this, until hold up wheel completely in horizontal segment 52, at this time wheel into
Enter to pitch the idle space 11 of the heart, i.e., at this moment the region no longer carried by heart rail 2 is the wing rail that wheel is carried by the wing rail 5 increased
Effective district.Wheel moves on, and the fork heart carries wheel initially as track in the upper surface of track slot side, at this moment enters wing rail 5
Descending branch 53, wing rail 5 and the contact area of wheel constantly reduce, until carrying wheel by the track of the fork heart completely.By this
The wing rail 5 of structure increases wheel tread 6 when by pitching apex of the heart end, the contact area with the fork heart, and contact area is constant,
Realize the pressure for reducing the receiving on unit area, and the effect for keeping the pressure constant in tip location.Pass through this
Improve, the present invention substantially prolongs the service life of the fork heart, reduces the abrasion due to wheel impacts to fork heart surface, extends
It ties up and supports the period；Simultaneously when wheel crosses fork, due to being become smaller by fluctuation, stability when wheel crosses fork is improved, is greatly improved
The comfort of passenger.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, it is or not improved as long as using the improvement for the various unsubstantialities that the method for the present invention conception and technical scheme carry out
Present inventive concept and technical solution are directly applied into other occasions, within that scope of the present invention.
Claims (9)
1. a kind of alloy steel fork heart that unitary tape wing rail is increased, it is characterised in that：For the molding integral structure of overall processing,
Wing rail (5) including heart rail (2) and heart rail (2) two sides, the upper surface of the alloy steel fork heart and adjacent rail part are contour,
Heart rail (2) the pointed end inclination, the wing rail (5) are at least higher than the heart rail in the position at heart rail (2) tip
(2), at the top of the wing rail (5) in be sloped downwardly and slope is adapted to shape of the wheel tread (6) at the wing rail (5)
Shape.
2. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 1, it is characterised in that：The heart rail
(2) tip includes tilting down the transitional region (21) for gradually decreasing and contacting with wheel tread (6), and the wing rail (5) is from described
The orbital direction that transitional region (21) plays towards another side is divided into ascent stage (51), horizontal segment (52) and descending branch (53), institute
Stating the ascent stage (51) is the chamfered portion that the wing rail (5) is raised upwards towards heart rail (2) tip direction, with the transition region
Domain (21) is corresponding, and the horizontal segment (52) is wing rail corresponding with fork idle space (11) of the heart on the wing rail (5)
Effective coverage, the descending branch (53) are the chamfered portions of the wing rail (5) height decline after the idle space (11).
3. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 2, it is characterised in that：The decline
Section (53) is located at the outside of track, and carries the upper table that wheel portion height is lower than the alloy steel fork heart completely in the track
Face forms groove, and the groove accommodates protrusion part (61) of the abrasion rear wheel on the outside of the track.
4. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 1, it is characterised in that：It is described everywhere
Wing rail (5) overhead height and wheel tread (6) bottom level at this are adapted, and wing rail (5) width is equal to wheel everywhere
The width of tyre tread (6) subtracts the resulting difference of distance that heart rail (2) working edge (7) at this arrives the wing rail (5).
5. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 1, it is characterised in that：The wing rail
(5) inside is the convex surface to match with wheel tread (6) and wheel-rim shape.
6. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 1, it is characterised in that：The wing rail
(5) slope at the top of is 1:10~1:40, the horizontal segment height of the wing rail (5) is in 1.5~3.5mm.
7. any a kind of alloy steel fork heart that unitary tape wing rail is increased in -5 according to claim 1, it is characterised in that：
Including substructure (3) and equipped with the superstructure (1) of the heart rail (2) and the wing rail (5), the substructure (3) is
The plate structure of low-alloy steel manufacture, the superstructure (1) are made of high-strength abrasion-proof steel plate, superstructure (1) weldering
It connects and is fixed on the substructure (3).
8. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 6, it is characterised in that：The low conjunction
Jin Gang is Q345 steel plate, the high-strength abrasion-proof steel plate is NM400 steel plate.
9. a kind of alloy steel fork heart that unitary tape wing rail is increased according to claim 1, it is characterised in that：The heart rail
(2) it is equal to the upper surface of the alloy steel fork heart with the height of adjacent rail part coupling part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094835.2A CN108867202B (en) | 2018-09-19 | 2018-09-19 | Integral alloy steel fork core with wing rail heightening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094835.2A CN108867202B (en) | 2018-09-19 | 2018-09-19 | Integral alloy steel fork core with wing rail heightening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108867202A true CN108867202A (en) | 2018-11-23 |
| CN108867202B CN108867202B (en) | 2024-05-10 |
Family
ID=64324487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811094835.2A Active CN108867202B (en) | 2018-09-19 | 2018-09-19 | Integral alloy steel fork core with wing rail heightening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108867202B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778602A (en) * | 2019-03-25 | 2019-05-21 | 中铁宝桥集团有限公司 | A kind of tramcar groove profile railway frog and seamless process manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0040533A2 (en) * | 1980-05-19 | 1981-11-25 | Imre Csontos | Railway turnouts |
| CN102409581A (en) * | 2011-11-12 | 2012-04-11 | 中铁宝桥集团有限公司 | Alloy steel assembly of frog, point rail and wing rails |
| CN206219898U (en) * | 2016-08-18 | 2017-06-06 | 北京特冶工贸有限责任公司 | A kind of wing rail rail head suppresses heightening type assembled frog |
| CN206887633U (en) * | 2017-06-05 | 2018-01-16 | 铁科（北京）轨道装备技术有限公司 | A kind of grooved track trouble frog structure |
| CN208899252U (en) * | 2018-09-19 | 2019-05-24 | 芜湖中铁科吉富轨道有限公司 | A kind of alloy steel fork heart that unitary tape wing rail is increased |
-
2018
- 2018-09-19 CN CN201811094835.2A patent/CN108867202B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0040533A2 (en) * | 1980-05-19 | 1981-11-25 | Imre Csontos | Railway turnouts |
| CN102409581A (en) * | 2011-11-12 | 2012-04-11 | 中铁宝桥集团有限公司 | Alloy steel assembly of frog, point rail and wing rails |
| CN206219898U (en) * | 2016-08-18 | 2017-06-06 | 北京特冶工贸有限责任公司 | A kind of wing rail rail head suppresses heightening type assembled frog |
| CN206887633U (en) * | 2017-06-05 | 2018-01-16 | 铁科（北京）轨道装备技术有限公司 | A kind of grooved track trouble frog structure |
| CN208899252U (en) * | 2018-09-19 | 2019-05-24 | 芜湖中铁科吉富轨道有限公司 | A kind of alloy steel fork heart that unitary tape wing rail is increased |
Non-Patent Citations (1)
| Title |
|---|
| 铁道部科学研究院铁道建筑研究所: "《铁道建筑研究所论文集-第三集 铁路轨道》", pages: 291 - 294 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778602A (en) * | 2019-03-25 | 2019-05-21 | 中铁宝桥集团有限公司 | A kind of tramcar groove profile railway frog and seamless process manufacturing method |
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| Publication number | Publication date |
|---|---|
| CN108867202B (en) | 2024-05-10 |
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