CN102021867B - Embedded combined high manganese steel frog - Google Patents
Embedded combined high manganese steel frog Download PDFInfo
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- CN102021867B CN102021867B CN 201010606116 CN201010606116A CN102021867B CN 102021867 B CN102021867 B CN 102021867B CN 201010606116 CN201010606116 CN 201010606116 CN 201010606116 A CN201010606116 A CN 201010606116A CN 102021867 B CN102021867 B CN 102021867B
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- rail
- heart
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- wing
- frog
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Abstract
The invention discloses an embedded combined high manganese steel frog, which is provided with a frog center, frog heel rails and wing rails, wherein the frog center is integrally cast by a high-strength wear-resistant material and is embedded between two symmetrical wing rails, and the two wing rails and the frog center are connected and fixed through a bolt connecting pair and a steel rail gasket; and two frog heel rails are symmetrically connected and fixed on two sides of the tail of the frog center and are positioned between the two wing rails, and the two wing rails, the tail of the frog center and the two frog heel rails are connected and fixed through the bolt connecting pair, the steel rail gasket and a filler. The frog center is integrally cast by the high-strength wear-resistant material and the surface of the frog center is hardened, so that the service life of the high manganese steel frog is prolonged, and the requirement of an overloading railway is met; and steel rails are subjected to on-line heat treatment at two ends of the frog, so that the problem of field welding of laying of continuous welded rails is solved.
Description
Technical field
The present invention relates to a kind of embedded combined high manganese steel frog, belong to the railway switch technical field.
Background technology
Along with the fast development of national economy, railway operation speed improves day by day, and the track switch of using on the circuit is had higher requirement.Railway frog directly affects application life and the overall trip speed of track switch as a critical component of track switch.The fixed solid manganese steel frog can't satisfy the trans-section seamless railway requirement, and application life is shorter owing to can not directly weld at the laying scene with the circuit rail, is replaced by alloy steel combination frog gradually on the railway main track.Although alloy steel combination frog has solved gapless track Site Welding problem, improved the application life of heart rail, but because the wing rail employing is common rail, cause the abrasion of wing rail end face very fast, fail to bring into play fully the antiwear characteristic of alloy steel core rail, whole group of railway frog can't satisfy user's high life, reduced-maintenance requirement just because wing rail wears away limit.
The utility model content
The technical problem that the present invention solves: a kind of embedded combined high manganese steel frog is provided, it wears away comparatively fast and affects the fork heart position employing High Strength Wear-Resistance Material block cast moulding of railway frog bulk life time, and adopt advanced hardening process that cure process is carried out on its surface, thereby improve the application life of railway frog, satisfy the heavy-haul line demand; The online heat-treated rail of 60kg/m, 75kg/m is adopted at the railway frog two ends, solves gapless track and lays the Site Welding problem.
Technical solution of the present invention: a kind of embedded combined high manganese steel frog has the fork heart (1), fork with rail (2) and wing rail (3).The described fork heart (1) adopts High Strength Wear-Resistance Material block cast moulding, and the fork heart (1) is embedded between the wing rail (3) of two symmetric arrays, is bolted pair (6) and rail packing ring (5) two wing rails (3) and the fork heart (1) are connected and fixed; Two forks are fastened on the both sides of the afterbody of the fork heart (1) with rail (2) symmetry, and be positioned between two wing rails (3), and be bolted pair (6), rail packing ring (5) and interval iron (4) afterbody and two forks of two wing rails (3) with the fork heart (1) are connected and fixed with rail (2).
Have on the described fork heart (1) heart rail (7) and with the into a single integrated structure two fork heart wing rails (8) of heart rail (7), and the afterbodys of two fork heart wing rails (8) are positioned at the both sides of heart rail (7) end.
The described fork heart (1) adopts potassium steel material block cast moulding, and the tread surface of the heart rail (7) on it and fork heart wing rail (8) all adopts the explosion hardening treatment process to carry out cure process; Described wing rail (3) and fork adopt online heat-treated rail to make with rail (2).
The uniform flange of bilateral symmetry (9) of the described fork heart (1), flange (9) locates to be shaped with bolt connecting hole (10) on the one hand, and the shape of flange (9) and wing rail (3) and fork are fitted with the web of the rail inside wall of rail (2) on the other hand; On the one hand bolt connection pair (6) passes that bolt connecting hole (10) will pitch the heart (1) and two wing rails (3) are connected and fixed; Bolt connection pair (6) passes bolt connecting hole (10) and will pitch afterbody and two forks of the heart (1) and be connected and fixed with rail (2) on the other hand.
The advantage that the present invention compared with prior art has and effect:
1, the present invention pitches the heart and adopts the potassium steel material, has good impact toughness and abrasion resistance, and the tread surface carries out explosion hardening and process, and has improved the initial hardness on driving surface, strengthens the railway frog abrasion resistance.The online heat-treated rail of 60kg/m, 75kg/m is adopted at the railway frog two ends, satisfies the Site Welding requirement of gapless track.
2, the present invention's fork heart rail and wing rail relative position relation in the heart is reasonable in design, and is the potassium steel material, has realized can giving full play to impact toughness and the antiwear characteristic of potassium steel with the same life-span of material.
3, to pitch heart section structure simple in the present invention, casting, processing both be beneficial to, be beneficial to again the assembling of whole group of railway frog, particularly the internal soundness of the wing rail of heart rail tip to 50mm section zone and this zone correspondence can reach 1～2 grade (ASTM of ASTM high manganese steel casting X-ray procedure standard), further improved fork in the heart heart rail and the application life of wing rail.
Above-mentioned advantage and effect have determined that bulk life time of the present invention all is significantly improved than fixed solid manganese steel frog, alloy steel combination frog, adapt to transregional seamless raising speed railway, heavy-haul line demand.
Description of drawings
Fig. 1 is structure top view of the present invention,
Fig. 2 is the A-A sectional view of Fig. 1,
Fig. 3 is the B-B sectional view of Fig. 1,
Fig. 4 is the C-C sectional view of Fig. 1,
Fig. 5 is the D-D sectional view of Fig. 1;
Fig. 6 is alloy steel core rail structure top view of the present invention,
Fig. 7 is the A-A sectional view of Fig. 6,
Fig. 8 is the B-B sectional view of Fig. 6,
Fig. 9 is the C-C sectional view of Fig. 6,
Figure 10 is the D-D sectional view of Fig. 6.
The specific embodiment
Describe a kind of embodiment of the present invention in detail below in conjunction with accompanying drawing 1,2,3,4,5,6,7,8,9,10.
A kind of embedded combined high manganese steel frog has the fork heart 1, fork with rail 2 and wing rail 3.The fork heart 1 adopts potassium steel material block cast moulding, and the fork heart 1 is embedded between the wing rail 3 of two symmetric arrays.The uniform flange 9 of bilateral symmetry of the fork heart 1, flange 9 places are shaped with bolt connecting hole 10 on the one hand, the shape of flange 9 and wing rail 3 and fork are fitted with the web of the rail inside wall of rail 2 on the other hand, and bolt connection pair 6 passes that bolt connecting hole 10 will be pitched the heart 1 by rail packing ring 5 and two wing rails 3 are connected and fixed.Two forks are symmetricly set on the both sides of the afterbody of the fork heart 1 with rail 2, and between two wing rails 3, bolt connection pair 6 passes bolt connecting hole 10 and by rail packing ring 5 and interval iron 4 two wing rails 3 afterbody and two forks with the fork heart 1 is connected and fixed with rail 2.
Have on the described fork heart 1 heart rail 7 and with the into a single integrated structure two fork heart wing rails 8 of heart rail 7, and the afterbodys of two fork heart wing rails 8 are positioned at the both sides of heart rail 7 ends.And the tread surface of heart rail 7 and fork heart wing rail 8 all adopts the explosion hardening treatment process to carry out cure process; Described wing rail 3 and fork adopt online heat-treated rail to make with rail 2.
The present invention pitches the heart 1 and adopts the potassium steel material, has good impact toughness and abrasion resistance, and the tread surface of driving carried out the explosion hardening processing, and tread surface initial hardness is increased to 352HB, has further strengthened the abrasion resistance of railway frog.Wing rail 3 and the fork that make by the online heat-treated rail of employing 60kg/m, 75kg/m at the railway frog two ends directly weld at the scene of laying and circuit with rail 2.
It is simple that the present invention pitches the heart 1 section structure, casting, processing both be beneficial to, be beneficial to again the assembling of whole group of railway frog, particularly section structure simple in structure reduced pore, burning into sand that casting process produces, be mingled with, the defective such as shrinkage cavity and porosity, make the internal soundness of the wing rail 8 of heart rail 7 tips to 50mm section zone and this zone correspondence can reach 1～2 grade (ASTM of ASTM high manganese steel casting X-ray procedure standard), further improved fork in the heart heart rail 7 and the application life of wing rail 8.
Heart rail 7 and wing rail 8 relative position relations that the present invention pitches on the heart 1 are reasonable in design, and are the potassium steel material, have realized can giving full play to impact toughness and the antiwear characteristic of potassium steel with the same life-span of material.
Above-described embodiment proves absolutely that bulk life time of the present invention all is significantly improved than fixed solid manganese steel frog, alloy steel combination frog, adapts to transregional seamless raising speed railway, heavy-haul line demand.
Claims (2)
1. embedded combined high manganese steel frog, have the fork heart (1), fork with rail (2) and wing rail (3), it is characterized in that: the described fork heart (1) is embedded between the wing rail (3) of two symmetric arrays, is bolted pair (6) and rail packing ring (5) two wing rails (3) and the fork heart (1) are connected and fixed; Two forks are symmetricly set on the both sides of the afterbody of the fork heart (1) with rail (2), and be positioned between two wing rails (3), and be bolted pair (6), rail packing ring (5) and interval iron (4) afterbody and two forks of two wing rails (3) with the fork heart (1) are connected and fixed with rail (2); Have on the described fork heart (1) heart rail (7) and with the into a single integrated structure two fork heart wing rails (8) of heart rail (7), and the afterbodys of two fork heart wing rails (8) are positioned at the both sides of heart rail (7) end; The described fork heart (1) adopts potassium steel material block cast moulding, and the tread surface of the heart rail (7) on it and fork heart wing rail (8) all adopts the explosion hardening treatment process to carry out cure process; Described wing rail (3) and fork adopt online heat-treated rail to make with rail (2).
2. embedded combined high manganese steel frog according to claim 1, it is characterized in that: the uniform flange of bilateral symmetry (9) of the described fork heart (1), flange (9) locates to be shaped with bolt connecting hole (10) on the one hand, and the shape of flange (9) and wing rail (3) and fork are fitted with the web of the rail inside wall of rail (2) on the other hand; On the one hand bolt connection pair (6) passes that bolt connecting hole (10) will pitch the heart (1) and two wing rails (3) are connected and fixed; Bolt connection pair (6) passes bolt connecting hole (10) and will pitch afterbody and two forks of the heart (1) and be connected and fixed with rail (2) on the other hand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010606116 CN102021867B (en) | 2010-12-20 | 2010-12-20 | Embedded combined high manganese steel frog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010606116 CN102021867B (en) | 2010-12-20 | 2010-12-20 | Embedded combined high manganese steel frog |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102021867A CN102021867A (en) | 2011-04-20 |
| CN102021867B true CN102021867B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010606116 Active CN102021867B (en) | 2010-12-20 | 2010-12-20 | Embedded combined high manganese steel frog |
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| Country | Link |
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| CN (1) | CN102021867B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433805B (en) * | 2011-11-12 | 2015-03-25 | 中铁宝桥集团有限公司 | Special-structure high manganese steel frog and design method |
| CN105239466A (en) * | 2015-11-09 | 2016-01-13 | 中铁宝桥集团有限公司 | Novel embedded manganese fork core structure |
| CN106149482A (en) * | 2016-07-25 | 2016-11-23 | 中铁宝桥集团有限公司 | A kind of embedded combined high manganese steel frog of embedded alloy steel core rail wing rail |
| 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 |
| CN108103855A (en) * | 2018-01-05 | 2018-06-01 | 龙运生 | A kind of fixed alloy steel combination frog |
| CN108642976A (en) * | 2018-05-18 | 2018-10-12 | 中铁山桥集团有限公司 | A kind of manganese steel fork heart obtuse angle assembly frog structure |
| CN108774923A (en) * | 2018-08-23 | 2018-11-09 | 中铁宝桥集团有限公司 | Combined type high manganese steel frog |
| CZ33029U1 (en) | 2019-04-11 | 2019-07-30 | DT - Výhybkárna a strojírna, a.s. | Valve with shortened cast monoblock |
| CN113668299B (en) * | 2021-08-20 | 2023-04-25 | 宜兴市鑫煜科技有限公司 | Integral casting type frog structure for railway track train turnout and preparation process thereof |
| CN114318963B (en) * | 2021-12-17 | 2023-03-14 | 中铁宝桥集团有限公司 | Fixed combined frog |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2042488A1 (en) * | 1970-08-27 | 1972-03-09 | Schreck-Mieves Kg, 4600 Dortmund | Soft |
| DE19621018C1 (en) * | 1996-05-24 | 1997-10-16 | Butzbacher Weichenbau Gmbh | Rail track component e.g. frog with layered structure |
| CN2326633Y (en) * | 1998-03-17 | 1999-06-30 | 铁道部宝鸡桥梁工厂 | Alloy steel-band wing-rail central-rail welded frog |
| CN2332751Y (en) * | 1998-05-29 | 1999-08-11 | 关铁 | Austenite forged steel frog centre |
| CN1583324A (en) * | 2004-06-04 | 2005-02-23 | 中国科学院金属研究所 | High manganese steel railway assembled frog centre rail casting process |
| CN100999781A (en) * | 2007-01-13 | 2007-07-18 | 燕山大学 | High manganese steel frog surface explosive harden tech. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201924243U (en) * | 2010-12-20 | 2011-08-10 | 中铁宝桥集团有限公司 | Embedded type combined high manganese steel frog |
-
2010
- 2010-12-20 CN CN 201010606116 patent/CN102021867B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2042488A1 (en) * | 1970-08-27 | 1972-03-09 | Schreck-Mieves Kg, 4600 Dortmund | Soft |
| DE19621018C1 (en) * | 1996-05-24 | 1997-10-16 | Butzbacher Weichenbau Gmbh | Rail track component e.g. frog with layered structure |
| CN2326633Y (en) * | 1998-03-17 | 1999-06-30 | 铁道部宝鸡桥梁工厂 | Alloy steel-band wing-rail central-rail welded frog |
| CN2332751Y (en) * | 1998-05-29 | 1999-08-11 | 关铁 | Austenite forged steel frog centre |
| CN1583324A (en) * | 2004-06-04 | 2005-02-23 | 中国科学院金属研究所 | High manganese steel railway assembled frog centre rail casting process |
| CN100999781A (en) * | 2007-01-13 | 2007-07-18 | 燕山大学 | High manganese steel frog surface explosive harden tech. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102021867A (en) | 2011-04-20 |
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