CN212375641U - Reinforced alloy steel point rail combined acute frog - Google Patents
Reinforced alloy steel point rail combined acute frog Download PDFInfo
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- CN212375641U CN212375641U CN202022006815.4U CN202022006815U CN212375641U CN 212375641 U CN212375641 U CN 212375641U CN 202022006815 U CN202022006815 U CN 202022006815U CN 212375641 U CN212375641 U CN 212375641U
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Abstract
A reinforced alloy steel point rail combined acute-angle frog is characterized in that two wing rails are symmetrically arranged on two sides of an alloy steel point rail, and two fork heel rails are symmetrically arranged on two sides of the tail of the alloy steel point rail and located between the wing rails; the novel steel frog abrasion-resistant steel rail is characterized in that abrasion-resistant reinforcing plates are symmetrically fixed on one side of the non-working edge of the wing rail, corresponding to the region of the frog harmful space, and the inner rail head is symmetrically milled on one side of the working edge of the wing rail, corresponding to the region of the frog harmful space, so that the contact area between a wheel tread and the top surface of each abrasion-resistant reinforcing plate is increased when a wheel passes through the frog harmful space, and the abrasion-resistant reinforcing plates are fixedly connected with the alloy steel point rail and the two wing rails through spacer iron and high-strength bolt. The utility model discloses simple structure, packaging efficiency height, long service life, maintenance easy maintenance, and can satisfy the seamless requirement of circuit.
Description
Technical Field
The utility model belongs to the technical field of railway switch, concretely relates to strenghthened type alloy steel point rail combination acute angle frog.
Background
With the continuous development of urban construction, the social and economic levels are continuously improved, the ground traffic jam condition is very serious, and the urban rail transit has the characteristics of rapidness and convenience, so that the urban rail transit becomes a traffic mode which more and more residents depend on when going out. At the end station or the middle large station of the subway, due to the needs of transportation organization such as turning back, a matched cross crossover line is generally arranged so as to facilitate the turning back of the locomotive and improve the transportation efficiency. Due to the structural and functional particularity of the cross crossover turnout, the dynamic action of the wheel track and the maintenance workload when the train passes the turnout are far larger than those of the interval line. The sharp frog in the cross crossover line is generally made of high manganese steel integrally cast frog, and a small amount of alloy steel point-rail combined frog. The high manganese steel integrally cast frog is easy to have the defects of peeling off, falling blocks, too fast vertical grinding of wing rails and the like, is frequently maintained and repaired, and is gradually replaced by the alloy steel point rail combined frog. The service lives of the core rail and the wing rail are not matched and the service lives are short because the existing alloy steel core rail combined frog or the wing rail is made of a steel rail made of a common material; or although the service life of the frog is obviously prolonged, the frog has the problems of complex manufacturing process, high cost, difficult assembly, low production efficiency and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a strenghthened type alloy steel point rail combination acute angle frog that manufacturing process is simple, packaging efficiency is high, long service life, maintenance easy maintenance, and can satisfy the seamless requirement of circuit.
The technical solution of the utility model is as follows: a reinforced alloy steel point rail combined acute-angle frog is assembled by an alloy steel point rail, two fork heel rails and two wing rails, wherein the two wing rails are symmetrically arranged on two sides of the alloy steel point rail, and the two fork heel rails are symmetrically arranged on two sides of the tail of the alloy steel point rail and are positioned between the wing rails; the method is characterized in that: the wear-resistant reinforcing plate is fixed on one side of the non-working edges of the two wing rails corresponding to the region symmetry of the frog harmful space, and the inner rail head is milled and processed on one side of the working edges of the two wing rails corresponding to the region symmetry of the frog harmful space, so that the contact area between the wheel tread and the top surface of the wear-resistant reinforcing plate is increased when a wheel passes through the frog harmful space, and the wear-resistant reinforcing plate is fixedly connected with the alloy steel center rail and the two wing rails through spacer iron and high-strength bolt pairs.
The inboard boss that has with the adaptation of wing rail web of a rail that wear-resisting stiffening plate, and wear-resisting stiffening plate top surface has the inclination with wheel tread adaptation.
The sum of the width of the top surface of the wear-resistant reinforcing plate and the width of the top surface of the wing rail after the inner rail head is milled on one side of the working edge of the wing rail is larger than or equal to the width of the top of the wing rail.
And the milling surface of the wing rail after the inner rail head is milled on one side of the working edge is an inclined surface inclined towards one side of the non-working edge, and part of the rail jaw is reserved.
The wear-resistant reinforcing plate is made of forged alloy steel or NM400 wear-resistant materials, and the fork heel rail and the wing rail are made of common steel rails.
The slope of the inclined plane is 1: 20.
The utility model has the advantages and effects:
the utility model discloses required alloy steel material is less, and the cost is lower, simple structure, easily manufacturing.
Do a little the utility model discloses adopt wear-resisting material in the weaker "harmful space" region of frog, improved the wearability of frog, prolonged the life of frog.
The utility model discloses set up wear-resisting stiffening plate in the wing rail outside of frog "harmful space" region, improved the stress state of this position frog, improved the stability and the security of frog.
Compare wing rail inboard and inlay antifriction plate structure, the utility model discloses simplify the structure, reduced work limit seam of piecing together, and it is not high to each spare part manufacturing accuracy requirement, not only assemble easy efficient, improved frog work limit continuity and ride comfort moreover.
The utility model discloses wear-resisting stiffening plate sets up in the frog outside, can realize online change, and the maintenance is maintained more conveniently.
Drawings
FIG. 1 is a schematic structural view of the present invention,
figure 2 is a cross-sectional view a-a of figure 1,
fig. 3 is a sectional view taken along line B-B in fig. 1.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1-3 and the specific embodiments.
A reinforced alloy steel point rail combined acute-angle frog is formed by assembling an alloy steel point rail 1, two fork heel rails 2 and two wing rails 3, wherein the two wing rails 3 are symmetrically arranged on two sides of the alloy steel point rail 1, and the two fork heel rails 2 are symmetrically arranged on two sides of the tail of the alloy steel point rail 1 and are positioned between the wing rails 3; the regional symmetry that two 3 non-working edge sides of wing rail correspond the harmful space of frog is fixed with wear-resisting stiffening plate 4, the regional symmetry milling process inboard railhead that two 3 working edge sides of wing rail correspond the harmful space of frog makes wheel 7 increase the area of contact of wheel tread and wear-resisting stiffening plate 4 top surface when passing through the harmful space of frog, and wear-resisting stiffening plate 4 is in the same place through interval iron 5 and high strength bolt pair 6 and alloy steel heart rail 1, two wing rail 3 fixed connection.
In order to prevent the wear-resistant reinforcing plate 4 from jumping up and down and improve the overall stability and safety of the frog, the inner side of the wear-resistant reinforcing plate 4 is provided with a boss 8 matched with the rail web of the wing rail 3.
In order to increase the contact area of the wheel on the top of the wing rail and the top surface of the wear-resistant reinforcing plate 4, the sum of the width of the top surface of the wear-resistant reinforcing plate 4 and the width of the top surface of the wing rail 3 after the inner rail head is milled on one side of the working edge of the wing rail 3 is not less than the width of the top surface of the wing rail 3, and the top surface of the wear-resistant reinforcing plate 4 has an inclination matched with the tread of the wheel 7.
In order to improve the stress state of the wing rail 3 corresponding to the harmful space area of the frog, the milling surface of the wing rail 3 after the inner rail head is milled on the working edge side is an inclined surface 9 inclined towards the non-working edge side, and the inclination of the inclined surface 9 is 1: 20. And a part of the rail jaw 10 is reserved, so that the positioning and installation of the spacing iron 5 are facilitated.
The wear-resistant reinforcing plate 4 is made of forged alloy steel or NM400 wear-resistant materials, and the wear resistance of a harmful space area of the frog corresponding to the wing rail 3 is improved. The fork and heel rails 2 and the wing rails 3 are made of common steel rails, and the seamless requirement is met.
The utility model discloses the point rail adopts the forging alloy steel material, and wear-resisting materials such as wear-resisting stiffening plate adoption forging alloy steel or NM400 make the frog realize the alloy tempering in "harmful space" region than weak, have improved frog life, have reduced the processing again and have assembled the degree of difficulty. Especially, the wear-resistant reinforcing plate is arranged on the outer side of the wing rail (namely the non-working edge side of the wing rail) in the harmful space area of the frog, so that the contact area of the wheel on the wing rail is increased, the wear resistance of the wing rail is improved, the stress state of the part is improved, and the wear resistance, the overall stability and the safety of the frog are further improved.
The utility model discloses wing rail, fork follow the rail and adopt the same material with the line rail, have satisfied seamless requirement, are favorable to this frog in the popularization and application in subway switch market.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A reinforced alloy steel point rail combined acute-angle frog is formed by assembling an alloy steel point rail (1), two fork heel rails (2) and two wing rails (3), wherein the two wing rails (3) are symmetrically arranged on two sides of the alloy steel point rail (1), and the two fork heel rails (2) are symmetrically arranged on two sides of the tail of the alloy steel point rail (1) and are positioned between the wing rails (3); the method is characterized in that: the regional symmetry that two wing rails (3) non-working limit one side correspond the harmful space of frog is fixed with wear-resisting stiffening plate (4), the regional symmetry milling process inboard railhead that two wing rails (3) working limit one side correspond the harmful space of frog makes wheel (7) increase the area of contact of wheel tread and wear-resisting stiffening plate (4) top surface when through the harmful space of frog, and wear-resisting stiffening plate (4) are in the same place through spacer (5) and high strength bolt pair (6) and alloy steel heart rail (1), two wing rails (3) fixed connection.
2. The reinforced alloy steel point rail combined acute frog of claim 1, which is characterized in that: the inner side of the wear-resistant reinforcing plate (4) is provided with a boss (8) matched with the rail web of the wing rail (3), and the top surface of the wear-resistant reinforcing plate (4) is provided with an inclination matched with the tread of the wheel (7).
3. The reinforced alloy steel point rail combined acute frog of claim 1 or 2, which is characterized in that: the sum of the width of the top surface of the wear-resistant reinforcing plate (4) and the width of the top surface of the wing rail (3) after the inner rail head is milled on one side of the working edge of the wing rail is more than or equal to the width of the rail top of the wing rail (3).
4. The reinforced alloy steel point rail combined acute frog of claim 3, which is characterized in that: the milling surface of the wing rail (3) after the inner rail head is milled on one side of the working edge is an inclined surface (9) inclined towards one side of the non-working edge, and part of the rail jaw (10) is reserved.
5. The reinforced alloy steel point rail combined acute frog of claim 4, which is characterized in that: the wear-resistant reinforcing plate (4) is made of forged alloy steel or NM400 wear-resistant materials, and the fork and heel rail (2) and the wing rail (3) are made of common steel rails.
6. The reinforced alloy steel point rail combined acute frog of claim 5, which is characterized in that: the inclination of the inclined plane (9) is 1: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022006815.4U CN212375641U (en) | 2020-09-15 | 2020-09-15 | Reinforced alloy steel point rail combined acute frog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022006815.4U CN212375641U (en) | 2020-09-15 | 2020-09-15 | Reinforced alloy steel point rail combined acute frog |
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| CN212375641U true CN212375641U (en) | 2021-01-19 |
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| CN202022006815.4U Active CN212375641U (en) | 2020-09-15 | 2020-09-15 | Reinforced alloy steel point rail combined acute frog |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979848A (en) * | 2020-09-15 | 2020-11-24 | 中铁宝桥集团有限公司 | Reinforced alloy steel point rail combined acute frog |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979848A (en) * | 2020-09-15 | 2020-11-24 | 中铁宝桥集团有限公司 | Reinforced alloy steel point rail combined acute frog |
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