CN112176783A - Embedded combination frog of channel rail alloy steel - Google Patents
Embedded combination frog of channel rail alloy steel Download PDFInfo
- Publication number
- CN112176783A CN112176783A CN202011111449.7A CN202011111449A CN112176783A CN 112176783 A CN112176783 A CN 112176783A CN 202011111449 A CN202011111449 A CN 202011111449A CN 112176783 A CN112176783 A CN 112176783A
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- China
- Prior art keywords
- rail
- wing
- groove
- alloy steel
- frog
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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
-
- 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
- E01B7/02—Tongues; Associated constructions
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to a rail technology, in particular to a groove-shaped rail alloy steel embedded combined frog. The wing rail structure comprises groove-shaped wing rails arranged on two sides and a center rail positioned between the wing rails; the steel rail wing rail is provided with two groove-shaped wing rails embedded in the middle of the groove-shaped wing rail, the two groove-shaped wing rails are respectively arranged on two sides of the front part of the center rail and extend forwards to cross the throat position of the frog, and two groove-shaped fork heel rails are respectively arranged on two sides of the rear end of the center rail; and the groove-shaped wing rail, the alloy steel wing rail, the center rail and the fork heel rail are all provided with a plurality of transverse through holes for being connected into a whole through bolt connecting pairs. The invention has reasonable design and convenient processing. And the toe end and the heel end of the frog are both made of groove-shaped rails, so that the frog is convenient for line connection.
Description
Technical Field
The invention relates to a rail technology, in particular to a groove-shaped rail alloy steel embedded combined frog.
Background
With the rapid development of national economy in China, as an important component of urban traffic, streetcars with large passenger capacity and environment-friendly operation are greatly developed in many cities. Due to the particularity of cities, the track running direction and conditions of the tramcar are limited and required, and a large number of turnouts need to be paved to meet the running requirements. The frog is used as an important component of the turnout, and the service life and the operation efficiency of the turnout are directly influenced. At present, there are two main types of frog of tramcars, one is high manganese steel casting; and secondly, the alloy steel point rail and wing rail integrated frog is formed by integrally processing the local part of the frog by alloy steel and then butt-welding the processed frog with a groove-shaped rail. Due to the restriction of urban roads, the varieties of the frog are various and are not universal, so that the high manganese steel frog which needs die sinking casting has high cost, long construction period and poor adaptability, and is difficult to meet the requirements. Although the alloy steel point rail and wing rail integrated frog has good adaptability, the processing cost is high and the product is difficult to form due to high alloy steel hardness and complex overall structure of the frog, and the groove rail is made of high-carbon high-manganese steel and alloy steel which are difficult to weld due to different materials when the alloy steel point rail and the groove rail are butt-welded, so that the welding process is difficult and the risk is high. Therefore, the development of a novel safe, reliable and convenient-to-produce tramcar-dedicated frog is urgently needed to meet the increasing market demand.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a groove-type rail alloy steel embedded combined frog.
In order to solve the technical problem, the solution of the invention is as follows:
the groove-type rail alloy steel embedded combined frog comprises groove-type wing rails arranged on two sides and a point rail positioned between the wing rails; the steel rail wing rail is provided with two groove-shaped wing rails embedded in the middle of the groove-shaped wing rail, the two groove-shaped wing rails are respectively arranged on two sides of the front part of the center rail and extend forwards to cross the throat position of the frog, and two groove-shaped fork heel rails are respectively arranged on two sides of the rear end of the center rail; and the groove-shaped wing rail, the alloy steel wing rail, the center rail and the fork heel rail are all provided with a plurality of transverse through holes for being connected into a whole through bolt connecting pairs.
As an improvement, the groove-shaped wing rails are positioned on two sides of the frog and divided into a toe end section, an alloy steel wing rail embedding section and a rail protecting section according to bending. The toe end section is positioned at the toe end of the frog, and the end part keeps the original shape of the groove-shaped rail and is convenient to be connected with the line groove-shaped rail; the U-shaped guard rail part of the rail head of the groove-shaped rail is cut off by the alloy steel wing rail embedding section to form a binding surface, so that the binding surface is convenient to bind with a non-working edge of the alloy steel wing rail; the U-shaped guard rail of the grooved rail head part is cut off by the guard rail section so as to avoid interference with the frog and the rail, and the working edge of the grooved rail head of the guard rail section and the working edge of the U-shaped guard rail section of the frog and the rail are connected into a straight line to be used as the guard rail section of the frog, so that the driving safety is ensured.
As an improvement, the front part of the center rail is wedge-shaped, and the rear part of the center rail is of an X-shaped dovetail structure.
As an improvement, the fork and the heel rail are divided into two parts, and the front end of the fork and the heel rail is matched with the center rail after being bent. In the range of the guard rail section of the groove-shaped wing rail, the U-shaped guard rail part of the rail head of the fork-following rail is cut off so as to avoid interference with the rail head of the guard rail section of the groove-shaped wing rail, the guard rail function is replaced by the guard rail section of the groove-shaped wing rail, and the U-shaped guard rail parts of the rest parts are reserved and kept in the same straight line with the working edge of the rail head of the wing rail to form a guard rail part together; the connection part of the fork and the heel end of the rail keeps the original shape of the groove rail and is convenient to be connected with the line groove rail.
As an improvement, the outer side of the alloy steel wing rail is provided with a shape matched with the upper jaw and the lower jaw of the groove-shaped wing rail, so that the alloy steel wing rail can be conveniently embedded into the groove-shaped wing rails on two sides of the frog.
As an improvement, the side parts of the groove-shaped wing rail, the alloy steel wing rail, the center rail and the fork heel rail are respectively provided with a plurality of counter bores for placing spacing irons or positioning pins.
As an improvement, a cylindrical spacer iron is arranged between the front ends of the two alloy steel wing rails, bosses are arranged on two sides of the spacer iron, and the boss is inserted into a counter bore corresponding to the inner side of the alloy steel wing rail and fixed through a bolt, so that the relative positions of the two alloy steel wing rails are conveniently kept.
As an improvement, the outer side surface of the alloy steel wing rail is attached to the rail web of the groove-shaped wing rail, so that the groove-shaped wing rail is prevented from deforming under the action of the connecting bolt.
As an improvement, the alloy steel wing rail and the groove-shaped wing rail are connected into a whole through bolts, and the waist groove is arranged at the bolt connecting hole of the alloy steel wing rail and used for preventing the bolts from loosening and meeting the installation requirement.
As an improvement, a fork-heel rail and a spacing iron which are processed by an alloy steel point rail and a groove rail are connected through bolts to form an integral combined point rail.
Compared with the prior art, the invention has the beneficial effects that:
the invention has reasonable design and convenient processing. And the toe end and the heel end of the frog are both made of groove-shaped rails, so that the frog is convenient for line connection. Through structural design optimization, adopt spare part combinations such as alloy steel wing rail, point rail, cell type wing rail, fork follow rail, make all spare part homoenergetic process alone, reduce the processing degree of difficulty, be convenient for process into the frog and the batch production of various different models, solve the production problem of high manganese steel frog, the integration frog of alloy steel point rail wing rail, avoid the risk that welded structure brought. And through the embedded structure of alloy steel wing rail, adopt alloy steel point rail, adopt the alloy steel material that intensity is high, long-lived at the easy wearing and tearing position of frog, can improve the life of frog by a wide margin.
Drawings
Fig. 1 is an overall schematic view of the present invention.
FIG. 2 is a cross-sectional view of the assembly relationship of the grooved wing rail, the alloy steel wing rail and the cylindrical spacer iron.
FIG. 3 is a cross-sectional view of the assembly relationship of the grooved wing rail, the alloy steel core rail and the positioning pin.
FIG. 4 is a general schematic view of a slotted wing rail.
FIG. 5 is a schematic view of a groove-type wing rail structure.
Figure 6 is a C-view of the slotted wing rail.
Figure 7 is a cross-sectional view of the slotted wing rail taken along line D-D.
Figure 8 is an E-view of the slotted wing rail.
FIG. 9 is a schematic view of the assembly of the alloy steel wing rail and the core rail.
Fig. 10 is a schematic view of the assembly of the head rail and the fork and heel rail.
Fig. 11 is a schematic structural view of a point rail.
FIG. 12 is a cross-sectional view of a counterbore of a rail.
FIG. 13 is a schematic structural diagram of an alloy steel wing rail.
FIG. 14 is a sectional view of the assembly of the waist groove of the alloy steel wing rail.
FIG. 15 is a schematic cross-sectional view of the alloy steel wing rail in the direction D-D.
FIG. 16 is a schematic cross-sectional view of the alloy steel wing rail in the direction E-E.
Fig. 17 is a schematic view of the structure of a cylindrical spacer iron.
Fig. 18 is an overall view of the fork and heel rail.
Fig. 19 is a cross-sectional view of the fork and heel rail G-G.
Fig. 20 is a schematic view of the fork and heel rail in the direction H.
Fig. 21 is a schematic view of the assembly relationship between the spacer and the fork and heel rail.
The reference numbers in the figures are: 1-a trough-type wing rail; 2-alloy steel wing rails; 3-point rail; 4-spacer iron; 5-fork and heel rail; 6-backing plate; 7-connecting bolt pair, 8-cylindrical spacer iron; 9-a positioning pin; 10-counter bore; 11-bolt head clamping groove; 12-toe end segment; 13-alloy steel wing rail embedded section; and 14-rail protecting sections.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
as shown in fig. 1-3, the steel alloy embedded type combined frog for the groove-type rail comprises groove-type wing rails 1 arranged on two sides and a point rail 3 positioned between the wing rails. Still include alloy steel wing rail 2, alloy steel wing rail 2 has two embedded groove type wing rail 1 middle parts, and the branch is located the anterior both sides of point rail 3 and is extended forward and cross frog throat position, and 3 rear end both sides of point rail are equipped with two groove type forks respectively and follow rail 5. And a plurality of transverse through holes are formed in the groove-shaped wing rail 1, the alloy steel wing rail 2, the center rail 3 and the fork heel rail 5 and are used for being connected into a whole through bolt connecting pairs. The side parts of the groove-shaped wing rail 1, the alloy steel wing rail 2, the center rail 3 and the fork heel rail 5 are provided with a plurality of counter bores 10 for placing spacing irons or positioning pins 9.
As shown in fig. 4-8, the trough-type wing rail 1 is located on both sides of the frog and is divided into three parts, namely a toe end section 12, an alloy steel wing rail embedded section 13 and a guard rail section 14 according to bends. The toe end sections 12 are located at the toe ends of the frog and the ends retain the original shape of the channel rail to facilitate connection to the track channel rail. The U-shaped guard rail part of the rail head of the groove-shaped rail is cut off by the alloy steel wing rail embedding section 13 to form a binding face, so that the U-shaped guard rail can be conveniently bound with the non-working edge of the alloy steel wing rail 2. The U-shaped guard rail of the grooved rail head part is cut off by the rail protection section 14 so as to avoid interference with the frog heel rail 5, and the working edge of the grooved rail head of the rail protection section 14 is connected with the working edge of the U-shaped guard rail section of the frog heel rail 5 to form a straight line to be used as the rail protection section of the frog, so that the driving safety is ensured.
As shown in fig. 9-12, the front portion of rail 3 is wedge-shaped, and the rear portion is an X-shaped dovetail structure. The point rail 3 can be made of alloy steel point rail made of alloy steel material. As shown in fig. 18-21, the fork and heel rail 5 is divided into two parts, and the front end of the fork and heel rail is bent to match with the point rail 3. In the range of the guard rail section of the groove-shaped wing rail 1, the U-shaped guard rail part of the rail head of the fork-following rail 5 is cut off so as not to interfere with the rail head of the guard rail section of the groove-shaped wing rail 1, the guard rail function is replaced by the guard rail section of the groove-shaped wing rail 1, the U-shaped guard rail parts of the rest parts are reserved and are kept to be in the same straight line with the working edge of the rail head of the groove-shaped wing rail, and the guard rail parts are formed together. The connection part of the heel end of the fork and heel rail 5 keeps the original shape of the groove rail, and is convenient to be connected with the line groove rail. As shown in fig. 18, a spacer 4 is provided between the two fork and rail 5 for securing a distance between the two fork and rail 5.
As shown in fig. 13-16, the outer side of the alloy steel wing rail 2 is provided with a shape matched with the upper jaw and the lower jaw of the groove-shaped wing rail, so that the alloy steel wing rail can be conveniently embedded into the groove-shaped wing rail 1 at two sides of the frog. The cylindrical spacer iron 8 is arranged between the front ends of the two alloy steel wing rails 2, as shown in fig. 13, bosses are arranged on two sides of the spacer iron, inserted into counter bores 10 corresponding to the inner sides of the alloy steel wing rails 2, and fixed through bolts, so that the relative positions of the two alloy steel wing rails 2 can be conveniently kept. The outer side surface of the alloy steel wing rail 2 is attached to the rail web of the groove-shaped wing rail 1, so that the groove-shaped wing rail is prevented from deforming under the action of the connecting bolt. The alloy steel wing rail 2 and the groove-shaped wing rail 1 are connected into a whole through bolts, and the bolt head clamping groove 11 is arranged at the bolt connecting hole of the alloy steel wing rail 2 and used for preventing bolts from loosening and meeting the installation requirements. The alloy steel point rail 3, the fork-heel rail 5 formed by processing the groove-shaped rail and the spacing iron are connected through bolts to form an integral combined point rail.
During manufacturing, parts such as the groove-type wing rail 1, the alloy steel wing rail 2, the alloy steel point rail 3, the spacing iron 4, the fork and heel rail 5, the base plate 6, the cylindrical spacing iron 8, the positioning pin 9 and the like are processed in advance according to requirements, and then the groove-type wing rail 1 and the alloy steel wing rail 2 are connected into the integral wing rail through bolts. The alloy steel point rail 3, the fork heel rail formed by processing the groove-shaped rail and the spacing iron are connected through bolts to form an integral combined point rail. The two wing rails and the combined point rail are fixed in relative positions through positioning pins and spacing irons and are connected into an integral frog through bolt connecting holes.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (6)
1. A groove-type rail alloy steel embedded combined frog comprises groove-type wing rails arranged on two sides and a center rail positioned between the wing rails; the steel frog wing rail is characterized by further comprising an alloy steel wing rail, wherein the alloy steel wing rail is provided with two middle embedded groove-shaped wing rails, the two middle embedded groove-shaped wing rails are respectively arranged on two sides of the front part of the point rail, extend forwards and cross the throat position of the frog, and two sides of the rear end of the point rail are respectively provided with two groove-shaped fork heel rails; and the groove-shaped wing rail, the alloy steel wing rail, the center rail and the fork tracking rail are all provided with a plurality of transverse through holes for being connected into a whole through bolt connecting pairs.
2. The composite frog in claim 1 wherein said alloy steel wing rail has an outer side with a shape matching the upper and lower jaws of the channel wing rail and an outer side that fits the web of the channel wing rail.
3. The combined frog in claim 1 wherein said side portions of said slotted wing rail, alloy steel wing rail, point rail and fork heel rail are each provided with a plurality of counter bores for receiving spacer iron or positioning pins.
4. The composite frog of claim 1 wherein said rail front portion is wedge shaped and said rear portion is an X-shaped dovetail configuration.
5. The composite frog in claim 1 wherein said fork heel rail is machined from a channel rail; the structure is divided into two parts, the front end is matched with the point rail after bending processing, and the heel end keeps the original shape of the groove rail, so that the groove rail is convenient to be connected with the groove rail in the line.
6. The combined frog in claim 3, wherein a cylindrical spacer iron is arranged between the front ends of the two alloy steel wing rails, bosses are arranged on two sides of the spacer iron, and the spacer iron is inserted into corresponding counter bores on the inner sides of the alloy steel wing rails and fixed through bolts, so that the relative positions of the two alloy steel wing rails are kept conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111449.7A CN112176783A (en) | 2020-10-16 | 2020-10-16 | Embedded combination frog of channel rail alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111449.7A CN112176783A (en) | 2020-10-16 | 2020-10-16 | Embedded combination frog of channel rail alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112176783A true CN112176783A (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011111449.7A Pending CN112176783A (en) | 2020-10-16 | 2020-10-16 | Embedded combination frog of channel rail alloy steel |
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| Country | Link |
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| CN (1) | CN112176783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108821A1 (en) * | 2021-12-17 | 2023-06-22 | 中铁宝桥集团有限公司 | Fixed combined frog |
-
2020
- 2020-10-16 CN CN202011111449.7A patent/CN112176783A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108821A1 (en) * | 2021-12-17 | 2023-06-22 | 中铁宝桥集团有限公司 | Fixed combined frog |
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