CN208415008U - Heart assembled frog is pitched in asymmetric formula potassium steel block cast - Google Patents
Heart assembled frog is pitched in asymmetric formula potassium steel block cast Download PDFInfo
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- CN208415008U CN208415008U CN201721243997.9U CN201721243997U CN208415008U CN 208415008 U CN208415008 U CN 208415008U CN 201721243997 U CN201721243997 U CN 201721243997U CN 208415008 U CN208415008 U CN 208415008U
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- potassium steel
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Abstract
The utility model relates to a kind of asymmetric formula potassium steel block casts to pitch heart assembled frog, assembled by high-strength bolt with rail, interval iron by the asymmetric formula potassium steel block cast fork heart, wing rail and long and short fork.Pitching interval iron and the fork heart at the heart is potassium steel block cast integral type, the overall stability of enhancing structure, and give full play to the impact flexibility and wearability of potassium steel；Fork heart heel end fits into asymmetric coupling structure with rail with fork, avoids stress concentration, the position stress is improved, to improve the service life of railway frog；Wing rail, fork are used with rail and are manufactured with the rail of route same material, meet the welding requirements of gapless track.
Description
Technical field
It not only can solve fixed solid manganese steel frog the utility model relates to one kind and be unable to satisfy gapless track requirement, but also
It is avoided that alloy steel combination frog alloy steel core rail heel end is that there are stress concentration, use processes caused by symmetrical necking down structure
In be also easy to produce the asymmetric formula potassium steel block cast that heart rail breakage phenomenon, service life be short, multidimensional is protected by wheel double direction impulse and pitch heart group
Rhythmic fork belongs to high railway frog manufacturing field.
Background technique
Gapless track eliminates rail joint rail gap, and continuous, smooth operation rail level is provided for train, is to ensure train
Safety, the key technology for improving train comfort, reducing railway maintenance maintenance cost.Gapless track has become the master of railway main track
Track structure form is wanted, track switch seamless process has become certainty.Railway frog is that wheel is made to cross setting for another strand of rail by one in track switch
It is standby, directly affect the service life and overall trip speed of track switch.Fixed solid manganese steel frog is due to cannot be with route rail
It is directly welded being laid with scene, gapless track requirement is unable to satisfy, gradually by alloy steel combination frog on railway main track
It is replaced.Although alloy steel combination frog solves the problems, such as gapless track site welding, but since alloy steel core rail heel end is pair
Claim necking down structure, there are stress concentration, by wheel double direction impulse in use process, be also easy to produce heart rail breakage phenomenon (see Fig. 3,
4) user's high life, reduced-maintenance requirement, are unable to satisfy.
CN102021867A, title " embedded combined high manganese steel frog " have the fork heart, fork with rail and wing rail.The fork
The heart is formed using High Strength Wear-Resistance Material block cast, and is pitched the heart and be embedded between the wing rail of two two symmetric arrays, and bolt is passed through
Two wing rails and the fork heart are connected and fixed by auxiliary connection and rail washer；Two forks are symmetrically fastened on the fork heart with rail
The two sides of tail portion, and be located between two wing rails, and secondary, rail washer and interval iron is bolted by two wing rails and fork
The tail portion of the heart and two forks are connected and fixed with rail.The utility model pitch center portion position using High Strength Wear-Resistance Material block cast at
Type, and cure process is carried out to its surface and meets heavy-haul line demand to improve the service life of railway frog；It adopts at railway frog both ends
With online heat-treated rail, solve the problems, such as that gapless track is laid with site welding.Its potassium steel pitches the heart (one with wing rail mosaic block
Structure), and fork is arranged symmetrically with rail.
Summary of the invention
Purpose of design: avoiding the shortcoming in background technique, designs a kind of new structure railway frog --- and asymmetric formula is high
Heart assembled frog is pitched in manganese steel block cast, can enhancing structure overall stability, give full play to the impact flexibility of potassium steel and wear-resisting
Property, and can make to pitch heart heel end and pitch to fit into asymmetric coupling structure with rail, stress concentration is avoided, the position stress is improved
State, to improve the asymmetric formula potassium steel block cast fork heart assembled frog of the service life of railway frog.
Design scheme: in order to realize above-mentioned purpose of design.Heart assembled frog is pitched in the application asymmetry formula potassium steel block cast, by
The asymmetric formula potassium steel block cast fork heart, wing rail and long and short fork are assembled by high-strength bolt with rail, interval iron.Between pitching at the heart
Every iron and the fork heart be potassium steel block cast integral type, the overall stability of enhancing structure, and give full play to the impact flexibility of potassium steel
And wearability；Fork heart heel end fits into asymmetric coupling structure with rail with fork, avoids stress concentration, improves the position stress
State, to improve the service life of railway frog；Wing rail, fork are used with rail and are manufactured with the rail of route same material, are met seamless
The welding requirements of route.
Asymmetric formula potassium steel block cast fork heart assembled frog in structure design, by the asymmetric formula potassium steel block cast fork heart,
Wing rail and long and short fork are assembled (see Fig. 1-1 to Fig. 2-5) by high-strength bolt with rail, interval iron.The railway frog gives full play to height
The impact flexibility and wearability of manganese steel, improve railway frog stress, to improve the service life of railway frog, and meet Sutureless
The welding requirements on road.
Compared with the background art, asymmetric formula potassium steel block cast fork heart assembled frog structure is simple, quality for the utility model
Stabilization, service life are high, easy to maintain, meet gapless track demand, are embodied in: first is that railway frog both ends are using identical as route
The rail of material manufactures, and meets the site welding requirement of gapless track；Second is that frog structure improves force-bearing situation, railway frog is improved
Stability；Third is that fork core structure is simple, compact, it is easy to cast, improves fork heart quality；Fourth is that both having solved fixed potassium steel
Fusion cast frog is unable to satisfy gapless track requirement, though in turn avoiding alloy steel combination frog has been able to achieve gapless track site welding
It connects, but since alloy steel core rail heel end is symmetrical necking down structure there are stress concentration, by wheel in caused use process
Double direction impulse is also easy to produce heart rail breakage phenomenon, is unable to satisfy the technical problem of user's high life, reduced-maintenance requirement, achieves
Unexpected technical effect.
1 fixed frog structure contrast table of table
Detailed description of the invention
Fig. 1-1 is asymmetric formula potassium steel block cast fork heart assembled frog structural schematic diagram.
Fig. 1-2 be in Fig. 1-1 A-A to schematic cross-sectional view.
Fig. 1-3 is B-B direction schematic cross-sectional view in Fig. 1-1.
Fig. 1-4 be in Fig. 1-1 C-C to schematic cross-sectional view.
Fig. 1-5 be in Fig. 1-1 D-D to schematic cross-sectional view.
Fig. 2-1 is asymmetric formula potassium steel block cast fork core structure schematic diagram.
Fig. 2-2 be in Fig. 2-1 A-A to schematic cross-sectional view.
Fig. 2-3 is B-B direction schematic cross-sectional view in Fig. 2-1.
Fig. 2-4 be in Fig. 2-1 C-C to schematic cross-sectional view.
Fig. 2-5 be in Fig. 2-1 D-D to schematic cross-sectional view.
Fig. 3 is the schematic diagram one of background technique；Fig. 4 is the schematic diagram two of background technique.
Specific embodiment
Embodiment 1: referring to attached drawing 1-1 to Fig. 1-5 and Fig. 2-1 to Fig. 2-5.A kind of asymmetry formula potassium steel block cast fork heart group
Rhythmic fork, the asymmetric formula potassium steel block cast fork heart 1 and wing rail 4 and 5 and long and short fork are with passing through interval iron 6 and high-strength between rail 2 and 3
Bolt connection pair 7 is assembled；Interval iron 6 and asymmetric formula potassium steel block cast are pitched at its asymmetric formula potassium steel block cast fork heart 1
The heart is potassium steel block cast integral type, and 6 lower support of interval iron is in wing rail rail limb upper surface or long and short fork on rail 2 and 3 after assembling
Surface, 6 upper support of interval iron Hubei Province under wing rail rail head lower jaw or long and short fork are with the rail head of rail 2 and 3, keeps the biography of vertical load
The consistency of path is passed, the vertical dislocation of heart rail and wing rail is reduced, the overall stability of enhancing structure prevents heart rail, wing rail with column
Vehicle operational shock causes heart rail, the variation of wing rail height difference.High-strength bolt auxiliary connection 7 is cased with rail washer 8.
Asymmetric formula potassium steel block cast fork heart heel end fits into asymmetric coupling structure with rail with fork, it is therefore an objective to avoid and answer
Power is concentrated to same lateral position, improves the position stress.
Wing rail, fork are used with rail and are manufactured with the rail of route same material, meet the welding requirements of gapless track.
It is to be understood that: although above-described embodiment contrasts detailed text to the mentality of designing of the utility model
Description, but these verbal descriptions only describe the simple text of the utility model mentality of designing, rather than practical new to this
It is practical new to each fall within this for the limitation of type mentality of designing, any combination, increase or modification without departing from the utility model mentality of designing
In the protection scope of type.
Claims (4)
1. heart assembled frog is pitched in a kind of asymmetry formula potassium steel block cast, it is characterized in that: the asymmetric formula potassium steel block cast fork heart (1) with
Wing rail (4,5) and long and short fork are with assembled by interval iron (6) and high-strength bolt auxiliary connection (7) between rail (2,3)；It is asymmetric
It is potassium steel block cast integral type, assembling that interval iron (6) and the asymmetric formula potassium steel block cast fork heart at the heart (1) are pitched in formula potassium steel block cast
Interval iron (6) lower support is in wing rail rail limb upper surface or long and short fork with rail (2,3) upper surface, interval iron (6) upper support afterwards
Hubei Province under wing rail rail head lower jaw or long and short fork are with rail (2,3) rail head, keeps the transmission path consistency of vertical load.
2. heart assembled frog is pitched in asymmetry formula potassium steel block cast according to claim 1, it is characterized in that: high-strength bolt connects
Secondary (7) are cased with rail washer (8).
3. heart assembled frog is pitched in asymmetry formula potassium steel block cast according to claim 1, it is characterized in that: asymmetric formula Gao Meng
Steel block cast fork heart heel end fits into asymmetric coupling structure with rail with fork.
4. heart assembled frog is pitched in asymmetry formula potassium steel block cast according to claim 1, it is characterized in that: wing rail, fork are with rail
It is manufactured using with the rail of route same material, meets the welding requirements of gapless track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243997.9U CN208415008U (en) | 2017-09-26 | 2017-09-26 | Heart assembled frog is pitched in asymmetric formula potassium steel block cast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243997.9U CN208415008U (en) | 2017-09-26 | 2017-09-26 | Heart assembled frog is pitched in asymmetric formula potassium steel block cast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208415008U true CN208415008U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721243997.9U Active CN208415008U (en) | 2017-09-26 | 2017-09-26 | Heart assembled frog is pitched in asymmetric formula potassium steel block cast |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829337A (en) * | 2017-09-26 | 2018-03-23 | 中铁宝桥集团有限公司 | Heart assembled frog is pitched in asymmetric formula potassium steel block cast |
-
2017
- 2017-09-26 CN CN201721243997.9U patent/CN208415008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829337A (en) * | 2017-09-26 | 2018-03-23 | 中铁宝桥集团有限公司 | Heart assembled frog is pitched in asymmetric formula potassium steel block cast |
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