CN104499382A - Combined frog of forged high-manganese-steel point rail - Google Patents
Combined frog of forged high-manganese-steel point rail Download PDFInfo
- Publication number
- CN104499382A CN104499382A CN201410815146.1A CN201410815146A CN104499382A CN 104499382 A CN104499382 A CN 104499382A CN 201410815146 A CN201410815146 A CN 201410815146A CN 104499382 A CN104499382 A CN 104499382A
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- Prior art keywords
- rail
- wing
- rails
- heart
- point rail
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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
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/12—Fixed frogs made of one part or composite
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a combined frog of a forged high-manganese-steel point rail. The point rail is made of a forged high-manganese-steel material; fork rails and wing rails are made of on-line thermally-treated steel rails which are the same as the material of an existing line. The rail waist section of the point rail is similarly wedge-shaped; two wing rails are symmetrically positioned on two sides of the point rail; two wedge-shaped spacing irons are symmetrically positioned between the wing rails and the point rail; the two wing rails, the two wedge-shaped spacing irons and the point rail are fixedly connected together through bolt connection pairs and steel rail washers; two fork rails are symmetrically arranged on two sides of the tail of the point rail and are positioned between the two wing rails; the two fork rails, the two wing rails and the point rail are fixedly connected together through bolt connection pairs, steel rail washers and common spacing irons. By use of the excellent impact toughness of forged high manganese steel, the impact resistance of the frog is enhanced; due to the weldability of the fork rails and the wing rails, the market requirement of a seamless line can be met; furthermore, the wedge-shaped structures prevent up-and-down movement of the point rail, so that the overall stability of the combined frog is improved, and the service life of the whole frog is prolonged.
Description
Technical field
The invention belongs to railway switch technical field, be specifically related to a kind of forging potassium steel heart rail assembled frog.
Background technology
Gapless track is the most outstanding mend gene of 20th century track structure.Gapless track structurally completely eliminates rail joint, reduce train at the shock and vibration of connector area, extend the application life of wheel, rail parts, decrease maintenance cost, and provide level and smooth operation surface, also bring many benefits to train operation and traffic safety.For a long time, potassium steel, due to the shock peening performance of its excellence, good intensity and impact toughness, is widely used in the critical component of railway switch--the manufacture of railway frog.But because the circuit solderability of solid manganese steel frog is poor, be difficult to applicable gapless track, replaced by alloy steel combination frog gradually at railway main track.Alloy steel combination frog adopts high-strength alloy steel core rail, and application life, comparatively solid manganese steel frog increased, but impact resistance is poor.
Summary of the invention
The technical problem that the present invention solves: a kind of forging potassium steel heart rail assembled frog is provided, utilizes the shock peening performance of potassium steel excellence, good intensity and impact toughness, strengthen railway frog impact resistance, to meet the gapless track market demand.
Technical solution of the present invention: a kind of forging potassium steel heart rail assembled frog, there are a heart rail, two forks with rail and two wing rails, described heart rail adopts forging high manganese steel material to make, and described fork adopts the burning optimization on line rail of material identical with existing line to make with rail and wing rail;
Elongatedly on the two side of the web of the rail of described heart rail be shaped with two symmetrical grooves, and make the formation lower end, side of groove to the tilted inclined-plane I of the web of the rail, boss is formed on the bottom of groove, makes the cross sectional shape of the web of the rail form an approximate wedge shape; The inner face of wedge shape interval iron is the inclined-plane II of fitting with inclined-plane I, and lower surface is the Planar Mechanism closely connected with boss;
Described two wing rails symmetry is positioned at the both sides of heart rail, two wedge shape interval iron are symmetrical between wing rail and heart rail, and the web of the rail sidewall shape of wedge shape interval iron outer face and wing rail is fitted, the inclined-plane II of inner face is closely connected with the side wall inclined plane I of the web of the rail of heart rail, Planar Mechanism and the boss of lower surface are closely connected, are bolted pair and two wing rails, two wedge shape interval iron and heart rail are connected and fixed by rail packing ring;
Described two forks are symmetricly set on the both sides of the afterbody of heart rail with rail, and between two wing rails, and are bolted pair, rail packing ring and general interval iron and the afterbody of two wing rails and heart rail and two are pitched and follow rail to be connected and fixed.
The vertical angle on described inclined-plane I is 4 ° ~ 8 °.
Between described two wing rails, two forks with between rail and wing rail and fork be connected and fixed respectively by bolt connection pair, rail packing ring and general interval iron with between rail.
The advantage that the present invention compared with prior art has and effect:
1, heart rail of the present invention adopts forging high manganese steel material to make, eliminate the casting flaw existed in casting potassium steel, mechanical property is comparatively cast potassium steel and is improved 20%, and elongation per unit length, normal temperature impact and low-temperature impact comparatively alloy steel improve more than 2.5 times, enhance railway frog impact resistance, improve railway frog application life.Concrete mechanics parameter is: tensile strength Rm>=900MPa, elongation rate A>=42%, and normal temperature impacts Aku(+20 DEG C)>=177J/cm
2, low-temperature impact Aku(-50 DEG C) and>=90J/cm
2.
2, the present invention's fork adopts the burning optimization on line rail of material identical with existing line to make with rail, wing rail, achieves the direct welding at track laying scene, meets the requirement of circuit seamless process.
3, structure of the present invention is simple, be easy to assembling, and by wedge shape heart rail and wedge shape interval iron with the use of, stop the upper and lower vibration of heart rail, and the alternating stresses that wheel impacts produces can be converted into the pulling force of high-strength bolt, further lock bolt, enhances the resistance to overturning of railway frog, improves the application life of whole group of railway frog.
Accompanying drawing explanation
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.
Detailed description of the invention
A kind of embodiment of the present invention is described in detail below in conjunction with accompanying drawing 1,2,3,4.
A kind of forging potassium steel heart rail assembled frog, has 1, two, heart rail fork with rail 2 and two wing rails 3; Described heart rail 1 adopts forging high manganese steel material to make, and described fork adopts the burning optimization on line rail of material identical with existing line to make with rail 2 and wing rail 3.Elongatedly on the two side of the web of the rail of described heart rail 1 be shaped with two symmetrical grooves 8, and make the formation lower end, side of groove 8 to the tilted inclined-plane I 9 of the web of the rail, boss 11 is formed on the bottom of groove 8, makes the cross sectional shape of the web of the rail form an approximate wedge shape; The inner face of wedge shape interval iron 4 is the inclined-plane II 10 of fitting with inclined-plane I 9, and lower surface is the Planar Mechanism 12 closely connected with boss 11;
Described two wing rail 3 symmetries are positioned at the both sides of heart rail 1, two wedge shape interval iron 4 symmetries are between wing rail 3 and heart rail 1, and the web of the rail sidewall shape of wedge shape interval iron 4 outer face and wing rail 3 is fitted, the inclined-plane II 10 of inner face is closely connected with the side wall inclined plane I 9 of heart rail 1 web of the rail, the Planar Mechanism 12 of lower surface is closely connected with boss 11, and be bolted secondary 6 and rail packing ring 5 two wing rails, 3, two wedge shape interval iron 4 and heart rail 1 are connected and fixed;
Described two forks are symmetricly set on the both sides of heart rail 1 afterbody with rail 2, and between two wing rails 3, and are bolted secondary 6, rail packing ring 5 and general interval iron 7 and the afterbody of two wing rails 3 and heart rail 1 and two pitchs and follow rail 2 to be connected and fixed; .
The vertical angle on described inclined-plane I 9 is 4 ° ~ 8 °, is beneficial to processing and assembling.Between described two wing rails 3, two forks with between rail 2 and wing rail 3 and fork be connected and fixed respectively by bolt connection pair 6, rail packing ring 5 and general interval iron 7 with between rail 2.Concrete connected mode is identical with the assembled frog in prior art.
Because the web of the rail cross sectional shape of heart rail 1 of the present invention is similar to wedge shape, and there is boss 11, closely connected with the side wall inclined plane I 9 of heart rail 1 web of the rail by the inclined-plane II 10 of wedge shape interval iron 4 inner face, and the Planar Mechanism 12 of lower surface blocks heart rail 1 with boss 11 is closely connected, stop heart rail about 1 vibration, the alternating stresses that wheel impacts railway frog is produced causes heart rail greatly to reduce relative to the possibility of the upper and lower changing of the relative positions of wing rail, and the alternating stresses that wheel impacts produces can be converted into the pulling force of high-strength bolt, further lock bolt, enhance the resistance to overturning of railway frog, improve the application life of whole group of railway frog, ensure traffic safety, be beneficial to the maintenance of way.
The present invention utilizes the impact toughness of forging potassium steel excellence, strengthens railway frog impact resistance; Fork is utilized to follow the solderability of rail and wing rail, to meet the gapless track market demand; And by wedge shape heart rail and wedge shape interval iron with the use of, solve combined frog crossing point rail and the relative up and down changing of the relative positions problem between wing rail, the resistance to overturning of enhancing railway frog, improves the application life of whole group of railway frog.
Claims (3)
1. forge a potassium steel heart rail assembled frog, there are a heart rail (1), two forks with rail (2) and two wing rails (3), it is characterized in that:
Described heart rail (1) adopts forging high manganese steel material to make, and described fork adopts the burning optimization on line rail of material identical with existing line to make with rail (2) and wing rail (3);
Elongatedly on the two side of the web of the rail of described heart rail (1) be shaped with two symmetrical grooves (8), and make the formation lower end, side of groove (8) to the tilted inclined-plane I (9) of the web of the rail, boss (11) is formed on the bottom of groove (8), makes the cross sectional shape of the web of the rail form an approximate wedge shape; The inner face of wedge shape interval iron (4) is the inclined-plane II (10) of fitting with inclined-plane I (9), and lower surface is the Planar Mechanism (12) closely connected with boss (11);
Described two wing rail (3) symmetries are positioned at the both sides of heart rail (1), two wedge shape interval iron (4) symmetries are positioned between wing rail (3) and heart rail (1), and the web of the rail sidewall shape of wedge shape interval iron (4) outer face and wing rail (3) is fitted, the inclined-plane II (10) of inner face is closely connected with the side wall inclined plane I (9) of the web of the rail of heart rail (1), the Planar Mechanism (12) of lower surface is closely connected with boss (11), is bolted pair (6) and two wing rails (3), two wedge shape interval iron (4) and heart rail (1) are connected and fixed by rail packing ring (5);
Described two forks are symmetricly set on the both sides of the afterbody of heart rail (1) with rail (2), and be positioned between two wing rails (3), and be bolted pair (6), rail packing ring (5) and general interval iron (7) and the afterbody of two wing rails (3) and heart rail (1) and two pitchs follow rail (2) to be connected and fixed.
2. forging potassium steel heart rail assembled frog according to claim 1, is characterized in that: the vertical angle on described inclined-plane I (9) is 4 ° ~ 8 °.
3. forging potassium steel heart rail assembled frog according to claim 1 and 2, is characterized in that: between described two wing rails (3), two forks with between rail (2) and wing rail (3) to follow between rail (2) with fork and be connected and fixed respectively by bolt connection pair (6), rail packing ring (5) and general interval iron (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815146.1A CN104499382A (en) | 2014-12-23 | 2014-12-23 | Combined frog of forged high-manganese-steel point rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815146.1A CN104499382A (en) | 2014-12-23 | 2014-12-23 | Combined frog of forged high-manganese-steel point rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104499382A true CN104499382A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410815146.1A Pending CN104499382A (en) | 2014-12-23 | 2014-12-23 | Combined frog of forged high-manganese-steel point rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499382A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700282A (en) * | 2017-09-01 | 2018-02-16 | 中国铁建重工集团有限公司 | A kind of railroad spaced iron |
| CN108914719A (en) * | 2018-06-15 | 2018-11-30 | 中铁宝桥集团有限公司 | Inserted forging potassium steel combines fixed railway frog |
| CN109403162A (en) * | 2018-12-24 | 2019-03-01 | 中铁宝桥集团有限公司 | A kind of assembled frog fork core structure |
| CN110593022A (en) * | 2019-09-10 | 2019-12-20 | 中国铁建重工集团股份有限公司 | Frog and rail |
| CN114318963A (en) * | 2021-12-17 | 2022-04-12 | 中铁宝桥集团有限公司 | Fixed combined frog |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5522570A (en) * | 1992-07-22 | 1996-06-04 | Bwg Butzbacher Weichenbau Gmbh | Rail section |
| CN1745963A (en) * | 2005-10-17 | 2006-03-15 | 大连交通大学 | Forging (rolling) manufacture of high-manganese steel frog centering rail |
| CN102021866A (en) * | 2010-12-20 | 2011-04-20 | 中铁宝桥集团有限公司 | Alloy steel combined frog in wedge-shaped structure |
| CN204000475U (en) * | 2014-07-02 | 2014-12-10 | 山东远大模具材料有限公司 | A kind of heart rail, wing rail are inserted and are adopted the assembled frog that forges potassium steel |
| CN204491321U (en) * | 2014-12-23 | 2015-07-22 | 中铁宝桥集团有限公司 | Forging potassium steel heart rail assembled frog |
-
2014
- 2014-12-23 CN CN201410815146.1A patent/CN104499382A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5522570A (en) * | 1992-07-22 | 1996-06-04 | Bwg Butzbacher Weichenbau Gmbh | Rail section |
| CN1745963A (en) * | 2005-10-17 | 2006-03-15 | 大连交通大学 | Forging (rolling) manufacture of high-manganese steel frog centering rail |
| CN102021866A (en) * | 2010-12-20 | 2011-04-20 | 中铁宝桥集团有限公司 | Alloy steel combined frog in wedge-shaped structure |
| CN204000475U (en) * | 2014-07-02 | 2014-12-10 | 山东远大模具材料有限公司 | A kind of heart rail, wing rail are inserted and are adopted the assembled frog that forges potassium steel |
| CN204491321U (en) * | 2014-12-23 | 2015-07-22 | 中铁宝桥集团有限公司 | Forging potassium steel heart rail assembled frog |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700282A (en) * | 2017-09-01 | 2018-02-16 | 中国铁建重工集团有限公司 | A kind of railroad spaced iron |
| CN108914719A (en) * | 2018-06-15 | 2018-11-30 | 中铁宝桥集团有限公司 | Inserted forging potassium steel combines fixed railway frog |
| CN109403162A (en) * | 2018-12-24 | 2019-03-01 | 中铁宝桥集团有限公司 | A kind of assembled frog fork core structure |
| CN110593022A (en) * | 2019-09-10 | 2019-12-20 | 中国铁建重工集团股份有限公司 | Frog and rail |
| CN114318963A (en) * | 2021-12-17 | 2022-04-12 | 中铁宝桥集团有限公司 | Fixed combined frog |
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Application publication date: 20150408 |