CN203668763U - Manganese steel fork core and steel rail spliced type frog - Google Patents
Manganese steel fork core and steel rail spliced type frog Download PDFInfo
- Publication number
- CN203668763U CN203668763U CN201320874412.9U CN201320874412U CN203668763U CN 203668763 U CN203668763 U CN 203668763U CN 201320874412 U CN201320874412 U CN 201320874412U CN 203668763 U CN203668763 U CN 203668763U
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- Prior art keywords
- rail
- heart
- fork
- manganese steel
- steel
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- Expired - Lifetime
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- 229910000617 Mangalloy Inorganic materials 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 238000009749 continuous casting Methods 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 239000011295 pitch Substances 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 9
- 229910052700 potassium Inorganic materials 0.000 description 9
- 239000011591 potassium Substances 0.000 description 9
- 229910001563 bainite Inorganic materials 0.000 description 7
- 229910000851 Alloy steel Inorganic materials 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The utility model relates to a manganese steel fork core and steel rail spliced type frog. The frog is formed by splicing a standard steel rail wing rail and a fork core, with the manganese steel fork core as the kernel, the manganese steel fork core, the standard steel rail wing rail and a standard steel rail fork heel rail are spliced through high-strength bolt pairs, according to the shape design of the bottom surface of a fork core point rail, the bottom surface of the fork core point rail is embedded in the upper surface of the bottom of the standard steel rail wing rail, and vertical force exerted on the point rail is directly transmitted to the bottom of the standard steel rail wing rail. The manganese steel fork core and steel rail spliced type frog has the advantages that the manganese steel fork core point rail, the wing rail, a spacer block continuous casting and steel rails are combined for a frog harmful space area and a point rail pointed end area in a splicing mode, connecting parts are reduced, it is avoided that the single spacer block is depended on for force transmission and limiting to cause mutual vertical movement when the wing rail, the fork heel rail and the fork core are not stressed at the same time, and integrity of the frog is improved. Due to the manganese steel fork core, the structural form of a block-cast fixed high-manganese steel frog big frame is improved, and deep hardening is easy to achieve, so that abrasive resistance of the frog is improved through improving the initial hardness of the frog, and maintenance loads are reduced. Meanwhile, the advantage, allowing on-line soldering and maintaining, of manganese steel material can be brought into play, use cost can be reduced, and service life of the frog can be prolonged.
Description
Technical field
The utility model relates to a kind of manganese steel fork heart rail pin-connected panel railway frog of rail track track switch, belongs to the improvement technical field of railway track.
Background technology
The connection that track switch being realizes rolling stock to enter or cross another circuit by a circuit with intersect equipment.Railway frog is the key equipment that rail track is realized train crossing operation, is to make wheel be crossed the equipment of another strand of rail by one rail.Due to the requirement of wheel traveling, making end frog form both sides is wing rail, the middle special structure form for the fork heart (heart rail).In existing track switch design, railway frog can be divided into fixed railway frog and active type railway frog by structural form; Be divided into combined type and one piece casting type by structure.Potassium steel material one piece casting type and alloy steel fork heart rail pin-connected panel railway frog are conventional type in the railway operation circuit of the following speed of a motor vehicle of China 120km/h.
Potassium steel has good toughness and work hardening ability, has advantages of wear-resisting and crack sensitivity low (crack advance is slow) under the effect of Strong Impact Loading, and therefore safety factor is high.And potassium steel may be implemented in wire bonding according to railway skill rule and mends maintenance, can significantly reduce thus cost of transportation.But potassium steel is because austenite structure is therefore initial hardness is lower, and before work hardening ability does not manifest, the initial abrasion loss that wears no resistance is large, as does not implement depth-hardened processing completely, and the upper track initial stage causes larger reconditioning workload can to the maintenance of railway.
The assembled railway frog of bainite series alloy steel fork heart rail, the withstand shocks part of load of fork heart part adopts the manufacture of bainite structure alloying element, has higher hardness and higher comprehensive mechanical property, has overcome the low disadvantage of potassium steel initial hardness.Once but the not discovery in time of the online generation of Pattern Bainite Alloy steel fork heart crackle is brittle fracture, traffic safety is formed greatly and is threatened, and no matter be crackle or flake-off piece defect, Pattern Bainite Alloy steel all can not carry out online soldering maintenance.
Summary of the invention
It is low that the purpose of this utility model is to give full play to potassium steel material crack sensitivity, the characteristic that safety factor is high, guaranteed that intense impact position can carry out possibility of repairing after depth-hardened and abrasion, exploitation potassium steel is pitched heart rail pin-connected panel railway frog, to increase the application life of railway frog simultaneously.
The technical scheme in the invention for solving the above technical problem is: this manganese steel fork heart rail pin-connected panel railway frog, by wing rail and manganese steel fork, the heart is assembled forms, assembled with rail use high-strength bolt pair with standard rail wing rail and standard steel rail fork take the manganese steel fork heart as core, the design of fork heart heart rail bottom shape is chimeric to be arranged at the bottom of standard rail wing rail Rail on upper surface, and the suffered vertical force of heart rail is directly delivered in the standard rail wing rail flange of rail.
Described manganese steel fork heart rail pin-connected panel railway frog, the fork heart mainly section of being hit L1 is manganese steel continuous casting wing rail, and it is into a single integrated structure that wing rail adopts manganese steel and heart rail and interval iron continuous casting, and side, continuous casting part bottom surface and the standard rail wing rail web of the rail and flange of rail upper surface are chimeric.
Described manganese steel fork heart rail pin-connected panel railway frog, the starting point of described continuous casting integrative-structure is 100mm place, throat of frog front, and terminal is heart rail 50mm section correspondence position, and front and back are provided with changeover portion.
Described manganese steel fork heart rail pin-connected panel railway frog, the fork heart mainly manganese steel continuous casting wing rail side view and the standard rail wing rail web of the rail side of the section of being hit L1 is chimeric.
Described manganese steel fork heart rail pin-connected panel railway frog, the mainly section of being hit L1 of the described fork heart, the design of railway frog fork heart rail wall lower shape is direct and chimeric above the standard rail wing rail flange of rail, and the suffered wheel vertical load of the fork heart is directly delivered to the standard rail wing rail flange of rail.
Described manganese steel fork heart rail pin-connected panel railway frog, the one-sided thickness d of described railway frog fork heart rail wall is brought up to 60mm.
Described manganese steel fork heart rail pin-connected panel railway frog, more than the thickness δ of described heart rail is increased to 45mm from below.
Described manganese steel fork heart rail pin-connected panel railway frog, pitch heart heel end and standard rail wing rail and standard steel rail fork with rail connecting portion at manganese steel, the design of fork heart rail wall lower shape is with standard steel rail fork with chimeric above the rail flange of rail, and the suffered wheel vertical load of the fork heart is directly delivered to standard steel rail fork with the rail flange of rail.
Described manganese steel fork heart rail pin-connected panel railway frog, the segmentation of described manganese steel continuous casting interval iron is cast in continuous casting wing rail outside, and the continuous casting interval iron side view web of the rail direct and standard rail wing rail is chimeric.
The beneficial effects of the utility model are, it is that heart rail, wing rail, interval iron continuous casting splice and combine with standard steel rail steel rail that gap in the frog region and heart rail tip region adopt the manganese steel fork heart, reduce union piece, while avoiding wing rail and fork stressed with rail and fork non-while of the heart, by independent interval iron power transmission and the spacing mutual vertical movement causing, improve the globality of railway frog.Side, continuous casting part bottom surface and the standard rail wing rail web of the rail and flange of rail upper surface are chimeric, have realized the suffered vertical force of heart rail and have directly been delivered in the wing rail flange of rail.Improve and reduce maintenance capacity application life and have remarkable result improving stability that On-line Product uses, the use of the manganese steel fork heart has also guaranteed the possibility of online Repair Welding after abrasion.
The fork heart that potassium steel is made has adopted increase entity technology, and making railway frog undertake the end face of carrying effect and the side entity area increase of supporting role is that cross sectional area increases.Improve horizontal and vertical composite bending modulus, the true stress value of sensitive part is reduced; The thickening of heart rail can effectively guarantee the raising of the compaction rate of the castability, particularly work plane of rail head working face, is beneficial to the realization of depth-hardened, improves safety assurance degree.
Accompanying drawing explanation
Fig. 1 is manganese steel fork heart rail pin-connected panel fixed railway frog schematic diagram
Fig. 2 is the manganese steel continuous casting fork heart part schematic diagram in Fig. 1
Fig. 3 is Fig. 1 railway frog position A-A view that is hit
Fig. 4 is manganese steel fork heart heel end and wing rail and pitches with rail connecting portion B-B view
Fig. 5 is the corresponding the utility model A-A of the assembled railway frog of prior art Pattern Bainite Alloy rail position view
Fig. 6 is the corresponding the utility model B-B of the assembled railway frog of prior art Pattern Bainite Alloy rail position view
Fig. 7 is existing fixed block cast formula high manganese steel frog corresponding the utility model A-A position, position view that is hit
In figure:
1, standard rail wing rail; 1-1, above the flange of rail; ,
2, the manganese steel fork heart; 2-1, continuous casting wing rail; 2-2, heart rail;
2-3, continuous casting interval iron (fork all lateral projections parts in the heart);
2-4, fork heart rail wall; 2-5, heart rail width 50mm section;
2-6, the actual tip of heart rail; 2-7, fork heart heel end;
3, standard steel rail fork is with rail; 3-1, standard steel rail fork are with above the flange of rail of rail;
4, cast steel interval iron; 5, high-strength bolt pair; 6, throat of frog;
7, continuous casting wing rail starting point (apart from throat 100mm); 8, rail packing ring;
L1, continuous casting wing rail part: this part main body plays that 100mm is to heart rail 50mm section correspondence position before throat, and front and back are provided with changeover portion;
L2, heart rail overall length; δ, heart rail thickness; D, rail wall thickness.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated, basic innovative point of the present utility model is to follow rail 3 use high-strength bolts pairs 5 assembled take manganese steel (ZG100Mn13) the fork heart 2 for core and standard rail wing rail 1 and standard steel rail fork, as shown in Figure 1.The design of fork heart heart rail bottom shape is chimeric be arranged on standard rail wing rail 1 Rail at the bottom of upper surface 1-1 upper, the suffered vertical force of heart rail is directly delivered in the standard rail wing rail flange of rail.The fork heart matrix that potassium steel is made has good crackle retardance, can avoid brittle failure phenomenon to occur; Can also utilize ripe online soldering technology to repair impaired rail wheeling action face, increase substantially railway frog application life, the safety of equipment is highly guaranteed.
The main innovate point of the utility model manganese steel fork heart rail pin-connected panel railway frog as shown in Figure 2, Figure 3, Figure 4, the fork heart mainly section of being hit L1 is manganese steel continuous casting wing rail 2-1, be that wing rail adopts manganese steel and heart rail 2-2 and interval iron 2-3 continuous casting into a single integrated structure, the starting point 7 of continuous casting integrative-structure is throat of frog 6 100mm places, front, terminal is heart rail 50mm section 2-6 correspondence position, and front and back are provided with changeover portion.Side, continuous casting part bottom surface and the standard rail wing rail web of the rail and flange of rail upper surface are chimeric.Concrete technical scheme comprises:
1, continuous casting wing rail 2-1 side view and standard rail wing rail rail head side are chimeric, as shown in Figure 3;
2, the mainly section of being hit L1 of the fork heart, the design of manganese steel fork heart rail wall 2-4 lower shape directly and above the standard rail wing rail flange of rail 1-1 chimeric, the suffered wheel vertical load of the fork heart is directly delivered to the wing rail flange of rail, avoid heart rail, wing rail to contact respectively the flange of rail injustice causing with backing plate, easily cause connecting bolt to be subject to shearing force situation.As shown in Figure 3;
3, pitch heart heel end and standard rail wing rail 1 and standard steel rail fork with rail 3 connecting portions at manganese steel, the design of fork heart rail wall 2-4 lower shape is chimeric with 3-1 above the rail flange of rail with standard steel rail fork, the suffered wheel vertical load of the fork heart is directly delivered to standard steel rail fork with the rail flange of rail, avoid heart rail, fork to contact respectively with rail the flange of rail injustice causing with backing plate, easily cause connecting bolt to be subject to the generation of shearing force situation.As shown in Figure 4.
Continuous casting interval iron is outstanding innovative point of the present utility model: continuous casting interval iron 2-3 segmentation is cast in continuous casting wing rail 2-1 outside, and the continuous casting interval iron side view design web of the rail direct and standard rail wing rail 1 is chimeric.Manganese steel continuous casting has been realized the fork heart every iron and has been connected with the direct of wing rail, reduces the outer interval iron of the fork heart of the assembled railway frog of existing Pattern Bainite Alloy steel, has reduced union piece, improves railway frog overall performance.
Another outstanding innovative point of the utility model is that railway frog has adopted the technical scheme that increases entity:
1, the one-sided thickness d of railway frog fork heart rail wall 2-4 is brought up to 60mm left and right by fusion cast frog 25mm left and right, cross sectional area is increased, as shown in Figure 3;
2, the thickness δ of heart rail 2-2, by the 35mm left and right of fusion cast frog, brings up to 45mm left and right, as shown in Figure 3.
Railway frog entity increases and improves horizontal and vertical composite bending modulus, and the true stress value of sensitive part is reduced; End face thickening can effectively guarantee the raising of the compaction rate of the castability, particularly rail wheeling action face (L1 and L2 scope in Fig. 2) of work plane, is beneficial to the realization of depth-hardened.
Claims (9)
1. a manganese steel fork heart rail pin-connected panel railway frog, by wing rail and fork, the heart is assembled forms, its feature comprises: follow rail (3) use high-strength bolt pair (5) assembled take the manganese steel fork heart (2) for core and standard rail wing rail (1) and standard steel rail fork, the design of fork heart heart rail bottom shape is chimeric be arranged on standard rail wing rail (1) Rail at the bottom of upper surface (1-1) upper, the suffered vertical force of heart rail is directly delivered in the standard rail wing rail flange of rail.
2. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 1, its feature comprises: the fork heart mainly section of being hit L1 is manganese steel continuous casting wing rail (2-1), be that wing rail adopts manganese steel and heart rail (2-2) and interval iron (2-3) continuous casting into a single integrated structure, side, continuous casting part bottom surface and the wing rail web of the rail and flange of rail upper surface are chimeric.
3. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 2, its feature comprises: the starting point (7) of described continuous casting integrative-structure is 100mm place, throat of frog (6) front, terminal is heart rail 50mm section (2-6) correspondence position, and front and back are provided with changeover portion.
4. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 2, and its feature comprises: continuous casting wing rail (2-1) side view and standard rail wing rail web of the rail side are chimeric.
5. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 2, its feature comprises: the mainly section of being hit L1 of the described fork heart, railway frog fork heart rail wall (2-4) lower shape is directly chimeric with (1-1) above the standard rail wing rail flange of rail, pitches the suffered wheel vertical load of the heart and is directly delivered to the wing rail flange of rail.
6. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 5, and its feature comprises: the one-sided thickness d of described railway frog fork heart rail wall (2-4) is brought up to 60mm.
7. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 2, and its feature comprises: more than the thickness δ of described heart rail (2-2) is increased to 45mm from below.
8. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 1, its feature comprises: pitch the heart (2) heel end and standard rail wing rail (1) and standard steel rail fork with rail (3) connecting portion at manganese steel, the design of fork heart rail wall (2-4) lower shape is chimeric with (3-1) above the rail flange of rail with standard steel rail fork, and the suffered wheel vertical load of the fork heart is directly delivered to standard steel rail fork with the rail flange of rail.
9. manganese steel is pitched heart rail pin-connected panel railway frog according to claim 2, and its feature comprises: described continuous casting interval iron (2-3) segmentation is cast in continuous casting wing rail (2-1) outside, and the continuous casting interval iron side view web of the rail direct and standard rail wing rail is chimeric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874412.9U CN203668763U (en) | 2013-12-27 | 2013-12-27 | Manganese steel fork core and steel rail spliced type frog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874412.9U CN203668763U (en) | 2013-12-27 | 2013-12-27 | Manganese steel fork core and steel rail spliced type frog |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668763U true CN203668763U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320874412.9U Expired - Lifetime CN203668763U (en) | 2013-12-27 | 2013-12-27 | Manganese steel fork core and steel rail spliced type frog |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203668763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669119A (en) * | 2013-12-27 | 2014-03-26 | 中铁山桥集团有限公司 | Manganese steel fork core steel rail split type frog |
| 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 |
-
2013
- 2013-12-27 CN CN201320874412.9U patent/CN203668763U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669119A (en) * | 2013-12-27 | 2014-03-26 | 中铁山桥集团有限公司 | Manganese steel fork core steel rail split type frog |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |