CN114318963B - Fixed combined frog - Google Patents
Fixed combined frog Download PDFInfo
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- CN114318963B CN114318963B CN202111552410.3A CN202111552410A CN114318963B CN 114318963 B CN114318963 B CN 114318963B CN 202111552410 A CN202111552410 A CN 202111552410A CN 114318963 B CN114318963 B CN 114318963B
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- rail
- wing rail
- wing
- mosaic block
- mosaic
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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
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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)
- Train Traffic Observation, Control, And Security (AREA)
- Connection Of Plates (AREA)
Abstract
The embodiment of the invention relates to a fixed combined frog. The method comprises the following steps: the wing rail group comprises a first wing rail and a second wing rail which are arranged at intervals; a point rail located between the first wing rail and the second wing rail; the first fork heel rail is arranged between the first wing rail and the point rail, the end part of the first fork heel rail is arranged on the side wall of the tail part of the point rail close to the first wing rail, the second fork heel rail is arranged between the second wing rail and the point rail, and the end part of the second fork heel rail is arranged on the side wall of the tail part of the point rail close to the second wing rail; the mosaic block set comprises a first mosaic block fixedly connected with the inner side of the first wing rail and a second mosaic block fixedly connected with the inner side of the second wing rail, wherein the mosaic block set is arranged between the throat part of the wing rail set and a preset position, and on the opposite side surfaces of the first wing rail and the second wing rail, the first mosaic block fixedly connected with the inner side of the first wing rail and the second mosaic block fixedly connected with the inner side of the second wing rail are arranged.
Description
Technical Field
The embodiment of the invention relates to the technical field of rail transit, in particular to a fixed combined frog.
Background
The connection of a rolling stock from one track branch into or over another track and the crossing equipment branch is called a switch. The turnout is an important component of a railway track structure, and can be realized without the help of the turnout in railway transportation services such as train arrival, concession, overtaking, locomotive pick-up, vehicle shunting, compilation, locomotive vehicle preparation and repair, cargo loading and unloading operation and the like.
In the related art, a jointless track is the main track structure form of a main railway line, and the seamless turnout junction is inevitable. The fixed high manganese steel integrally cast frog can not be directly welded with a line steel rail on a laying site, and is gradually replaced by an alloy steel combined frog on a railway main line. The problems that the manufacturing process of the existing embedded wing rail type alloy steel fixed combined frog structure is complex, the strength of a wing rail embedding block is insufficient, the assembly and online replacement are difficult, the production efficiency is low and the like are solved, so that the popularization and the application of the embedded wing rail type alloy steel combined frog are influenced.
Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.
It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a fixed type combination frog, thereby overcoming, at least to some extent, one or more of the problems due to the limitations and disadvantages of the related art.
According to a first aspect of embodiments of the present invention, there is provided a fixed-type combination frog, comprising:
the wing rail group comprises a first wing rail and a second wing rail which are arranged at intervals;
a point rail located between the first wing rail and the second wing rail;
the first fork and heel rail is arranged between the first wing rail and the point rail, the end part of the first fork and heel rail is arranged on the side wall of the tail part of the point rail close to the first wing rail, the second fork and heel rail is arranged between the second wing rail and the point rail, and the end part of the second fork and heel rail is arranged on the side wall of the tail part of the point rail close to the second wing rail;
the mosaic block set comprises a first mosaic block and a second mosaic block, wherein the first mosaic block is arranged between the throat part of the wing rail set to a preset position, the first mosaic block is fixedly connected with the inner side of the first wing rail, the second mosaic block is fixedly connected with the inner side of the second wing rail, the first mosaic block and the second mosaic block respectively comprise a middle main body section and extension sections at two ends of the main body section, the extension sections of the first mosaic block gradually narrow from one end of the main body section to the free end, the height of the extension sections is gradually lower than that of the first wing rail, the extension sections of the second mosaic block gradually narrow from one end of the main body section to the free end, the head width of the extension sections is gradually lower than that of the second wing rail;
wherein, first mosaic block with the face that first wing rail railhead side was hugged closely and is contacted has the orientation the slope is predetermine to the second wing rail, first mosaic block with the gap is predetermine to having between the first wing rail maxilla, with the laminating of first wing rail mandible and rail limb side, the second mosaic block with the face that second wing rail railhead side was hugged closely and is contacted has the orientation the slope is predetermine to first wing rail, the second mosaic block with the gap is predetermine to having between the second wing rail maxilla, with laminating of second wing rail mandible and rail limb side.
In an embodiment of the invention, the first wing rail and the second wing rail are symmetric-section steel rails, and the side surfaces of the rail heads at the positions where the first mosaic blocks are installed on the first wing rail and the second mosaic blocks are installed on the second wing rail are processed by a milling process.
In an embodiment of the invention, the predetermined position is a position where the width of the head of the core rail is 60 ± 10 mm.
In an embodiment of the invention, the extension section is from the position where the width of the rail head of the first mosaic block or the second mosaic block is 30 +/-5 mm to the free end.
In an embodiment of the invention, the shape of the railhead of the main body segment is matched with the contacted tread of the train wheel.
In an embodiment of the invention, the fixed type combined frog is uniformly connected by using the bolt connection pair at preset intervals along the extending direction of the fixed type combined frog.
In an embodiment of the invention, the maximum widths of the first mosaic block and the second mosaic block rail head range from 50mm to 70mm.
In one embodiment of the invention, the preset inclination is 2-20 degrees, and the preset gap is 0.5mm-4 mm.
In an embodiment of the present invention, the core rail, the first insert and the second insert are made of forged alloy steel or cast high manganese steel.
In one embodiment of the present invention, the forged alloy steel has a hardness of 360HBW or more, and the cast high manganese steel has a hardness of 229HBW or more.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
in the embodiment of the invention, a gap is arranged between the mosaic block and the upper jaw of the wing rail, the mosaic block is attached to the lower jaw of the wing rail and the side surface of the rail limb, and the attaching part of the mosaic block and the side surface of the rail head of the wing rail is inclined, so that the wing rail has downward pressure on the rail head of the mosaic block, and on one hand, the mosaic block is simple to assemble, and the online replacement and maintenance of the mosaic block can be better met; on the other hand, the structure improves the stress state of the mosaic blocks, so that the mosaic blocks and the wing rail structure are stable and are not easy to move when a train passes through, and the thickness and the stress strength of the rail head parts of the mosaic blocks are enhanced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 shows a schematic view of a fixed type combination frog structure in an exemplary embodiment of the invention;
FIG. 2 illustratesbase:Sub>A schematic cross-sectional view ofbase:Sub>A fixed type combination frog A-A in an exemplary embodiment of the invention;
FIG. 3 illustrates a cross-sectional structural view of a fixed type combination frog B-B in an exemplary embodiment of the invention;
FIG. 4 illustrates a cross-sectional structural view of a fixed type combination frog in an exemplary embodiment of the invention;
FIG. 5 illustrates a schematic cross-sectional view of a fixed combination frog D-D in an exemplary embodiment of the invention;
fig. 6 shows a partial cross-sectional structural view of a fixed type combined frog in an exemplary embodiment of the invention.
Wherein: 101-first wing rail, 102-second wing rail, 103-first mosaic block, 104-second mosaic block, 105-point rail, 106-first fork and heel rail, 107-second fork and heel rail, 108-bolt connection pair, 109-throat part and 110-preset position.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the invention, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In the present exemplary embodiment, a fixed type combination frog is first provided. Referring to fig. 1, the fixed-type combination frog may include: the wing rail set comprises a wing rail set, a point rail 105, a fork-heel rail and an inlay block set, wherein the wing rail set comprises a first wing rail 101 and a second wing rail 102 which are arranged at intervals; the point rail 105 is located between the first wing rail 101 and the second wing rail 102; the fork and heel rail comprises a first fork and heel rail 106 and a second fork and heel rail 107 which are arranged at intervals, the first fork and heel rail 106 is arranged between the first wing rail 101 and the point rail 105, the end part of the first fork and heel rail 106 is arranged on the side wall of the tail part of the point rail 105 close to the first wing rail 101, the second fork and heel rail 107 is arranged between the second wing rail 102 and the point rail 105, and the end part of the second fork and heel rail 107 is arranged on the side wall of the tail part of the point rail 105 close to the second wing rail 102; the mosaic block group comprises a first mosaic block 103 fixedly connected with the inner side of the first wing rail 101 and a second mosaic block 104 fixedly connected with the inner side of the second wing rail 102, wherein the first mosaic block 103 and the second mosaic block 104 respectively comprise a middle main body section and extension sections at two ends of the main body section, the extension sections of the first mosaic block 103 gradually narrow from one end of the main body section to the free end, the height of the extension sections is gradually lower than that of the first wing rail 101, and the extension sections of the second mosaic block 104 gradually narrow from one end of the main body section to the free end, the head width of the extension sections is gradually lower than that of the extension sections of the second wing rail 102; wherein, first mosaic piece 103 with the face that first wing rail 101 railhead side was hugged closely and is contacted has the orientation second wing rail 102 predetermines the inclination, first mosaic piece 103 with the gap is predetermine to having between the first wing rail 101 maxilla, with laminating in first wing rail 101 chin and rail limb side, second mosaic piece 104 with the face that second wing rail 102 railhead side was hugged closely and is contacted has the orientation first wing rail 101 predetermines the inclination, second mosaic piece 104 with the gap is predetermine to having between the second wing rail 102 maxilla, with laminating in second wing rail 102 chin and rail limb side.
Specifically, a first mosaic block 103 fixedly connected with the inner side of the first wing rail 101 and a second mosaic block 104 fixedly connected with the inner side of the second wing rail 102 are arranged on the opposite side surfaces of the first wing rail 101 and the second wing rail 102 from a throat 109 to a preset position 110, and the extension section is designed to be gradually narrowed and gradually shortened, so that the first mosaic block 103 and the second mosaic block 104 are conveniently installed on one hand, and the extension section can be well embedded with the wing rail group on the other hand, and a transition process is provided, so that the section of the track at the end part of the mosaic block group is not abrupt, and the potential safety hazards to the train are avoided to a large extent, for example, the length of the extension section can be 80mm to 120mm, and the width of the narrowest part of the extension section can be 1mm to 5mm, and is optimally 3mm. Through the setting of predetermineeing the gap for first mosaic block 103 and second mosaic block 104 have certain degree of freedom with the side of first wing rail 101 and second wing rail 102 when the embedding installation, can be easier install, and through the design of predetermineeing the inclination, make first wing rail 101 and second wing rail 102 to installing first mosaic block 103 and second mosaic block 104 on it have decurrent application of force, thereby reduced the rebound problem that first mosaic block 103 and second mosaic block 104 produced because of the setting in predetermineeing the gap to a certain extent, and, the design of predetermineeing the inclination makes mosaic block railhead position upper portion narrow, the lower part is wide, the ruggedness of railhead has been strengthened. Meanwhile, the first wing rail 101, the second wing rail 102, the first mosaic block 103 mounted on the first wing rail, and the second mosaic block 104 mounted on the second wing rail are in a close-fitting state except the preset gap, so that the first wing rail 101 and the second wing rail 102 also have a certain supporting effect on the first mosaic block 103 and the second mosaic block 104 mounted on the first wing rail, and the supporting effect improves the stress strength of the first mosaic block 103 and the second mosaic block 104 to a certain extent.
According to the fixed combined frog, a gap is formed between the mosaic block and the upper jaw of the wing rail and is attached to the lower jaw of the wing rail and the side surface of the rail limb, and the attaching part of the mosaic block and the side surface of the rail head of the wing rail is in an inclined shape, so that the wing rail has downward pressure on the rail head of the mosaic block, and on one hand, the mosaic block is simple to assemble, and the online replacement and maintenance of the mosaic block can be better met; on the other hand, the structure improves the stress state of the mosaic blocks, so that the mosaic blocks and the wing rail structure are stable and are not easy to move when a train passes through, and the thickness and the stress strength of the rail head parts of the mosaic blocks are enhanced.
Next, each part of the movable point rail 105 frog described above in this example embodiment will be described in more detail with reference to fig. 1 to 6.
In one embodiment, the first wing rail 101 and the second wing rail 102 may be symmetrical section steel rails, and the side surfaces of the rail head where the first mosaic blocks 103 are installed on the first wing rail 101 and the second mosaic blocks 104 are installed on the second wing rail 102 are processed by a milling process. Specifically, the symmetric section steel rail is simple to design and manufacture and low in manufacturing cost, the first wing rail 101 and the second wing rail 102 can be symmetrical section wing rails, material drawing is easier compared with special section wing rails, and the first inlaying block 103 for installing the first wing rail 101 and the second inlaying block 104 for installing the second wing rail 102 only need to be processed through a milling process.
In one embodiment, the predetermined position 110 may be a position where the head width of the core rail 105 is 60 ± 10 mm.
In one embodiment, the extension may be from the first mosaic block 103 or the second mosaic block 104 rail head width of 30 ± 5mm to the free end.
In one embodiment, the body segment railhead shape may match the train wheel tread that is contacted. Specifically, the shape of the railhead of the first mosaic block 103 and the second mosaic block 104 should match with the wheel tread of the contacted train, so that the main body segment can better bear the wheel, and the running safety of the train and the service life of the first mosaic block 103 and the second mosaic block 104 are improved.
In one embodiment, the fixed type combination frog is uniformly connected by the bolt connection pair 108 at preset intervals along the extending direction of the fixed type combination frog. Specifically, the distance is preset along the interval on the fixed form combination frog extending direction, adopts high strength bolted connection pair 108 to carry out the unified connection with fixed form combination frog, and relative steadiness between each structure in the fixed form combination frog of assurance that can be better has improved the security and the life of fixed form combination frog, wherein, predetermines the distance and can set for as required.
In one embodiment, the first and second tesserae 103 and 104 have a rail head width of 50mm to 70mm. Specifically, the first mosaic block 103 and the second mosaic block 104 have small width at the widest positions of railheads, are weak in pressure-bearing capacity, are easy to wear and have short service cycle; the rail head is too wide, so that the positions, close to the point rail, at the top of the rail head of the first mosaic block 103 and the second mosaic block 104 are seriously worn, and the positions, far away from the point rail, are not worn, so that a triangular pit is formed at the top of the rail head of the first mosaic block 103 and the second mosaic block 104, and the smoothness of crossing the fork of a train is influenced.
In one embodiment, the preset inclination may be 2-20 °, and the preset gap may be 0.5mm-4 mm. Specifically, the preset gap is set within the parameter range, so that the first mosaic block 103 and the second mosaic block 104 can be easily installed on the first wing rail 101 and the second wing rail 102, and the first mosaic block 103 and the second mosaic block 104 cannot be too loosened on the first wing rail 101 and the second wing rail 102, wherein the optimal size of the preset gap is 1mm to 3mm; meanwhile, the preset inclination is set in the parameter range, the milling of the first wing rail 101 and the second wing rail 102 is less, and meanwhile, the stress states of the first mosaic block 103 and the second mosaic block 104 can be improved well, so that the mosaic blocks are pressed down and stabilized.
In one embodiment, the rail 105, the first insert 103, and the second insert 104 may all be made of a forged alloy steel or a cast high manganese steel. The specific center rail 105, the first insert 103 and the second insert 104 should be made of wear-resistant materials, and the effect is better, and specifically, the center rail may be made of forged alloy steel or cast high manganese steel, and of course, the center rail may also be made of other wear-resistant materials, which is not limited specifically herein.
In one embodiment, the forged alloy steel may have a hardness of 360HBW or greater and the cast high manganese steel may have a hardness of 229HBW or greater. Specifically, the first insert 103 and the second insert 104 made of the forged alloy steel or the cast high manganese steel material having the hardness parameter or more have a short replacement period and a long service life.
According to the fixed combined frog, a gap is formed between the mosaic block and the upper jaw of the wing rail and is attached to the lower jaw of the wing rail and the side surface of the rail limb, and the attaching part of the mosaic block and the side surface of the rail head of the wing rail is in an inclined shape, so that the wing rail has downward pressure on the rail head of the mosaic block, and on one hand, the mosaic block is simple to assemble, and the online replacement and maintenance of the mosaic block can be better met; on the other hand, the structure improves the stress state of the mosaic blocks, so that the mosaic blocks and the wing rail structure are stable and are not easy to move when a train passes through, and the thickness and the stress strength of the rail head parts of the mosaic blocks are enhanced.
It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship illustrated in the drawings, and are used merely for convenience in describing embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (9)
1. A fixed type combination frog, comprising:
the wing rail group comprises a first wing rail and a second wing rail which are arranged at intervals;
a point rail located between the first wing rail and the second wing rail;
the first fork and heel rail is arranged between the first wing rail and the point rail, the end part of the first fork and heel rail is arranged on the side wall of the tail part of the point rail close to the first wing rail, the second fork and heel rail is arranged between the second wing rail and the point rail, and the end part of the second fork and heel rail is arranged on the side wall of the tail part of the point rail close to the second wing rail;
the mosaic block group comprises a first mosaic block fixedly connected with the inner side of the first wing rail and a second mosaic block fixedly connected with the inner side of the second wing rail, wherein the first mosaic block is arranged between the throat part of the wing rail group and a preset position, and on the opposite side surfaces of the first wing rail and the second wing rail; the first mosaic block and the second mosaic block respectively comprise a middle main body segment and extension segments at two ends of the main body segment, the extension segments of the first mosaic block gradually narrow in rail head height from one end of the main body segment to the free end and gradually lower than the first wing rail, and the extension segments of the second mosaic block gradually narrow in rail head width from one end of the main body segment to the free end and gradually lower than the second wing rail;
the first mosaic block is attached to and contacted with the side surface of the first wing rail railhead, the surface of the first mosaic block, which is attached to and contacted with the side surface of the first wing rail head, is attached to the side surface of the second wing rail lower jaw and the rail limb, the surface of the second mosaic block, which is attached to and contacted with the side surface of the second wing rail railhead, is attached to the side surface of the second wing rail head, the surface of the second mosaic block, which is attached to and contacted with the side surface of the second wing rail head, is attached to the side surface of the second wing rail lower jaw and the rail limb, and the preset gap is formed between the second mosaic block and the second wing rail upper jaw;
the preset inclination is 2-20 degrees, and the preset gap is 0.5-4 mm;
short bolts are adopted to connect the first mosaic blocks and the first wing rails and the second mosaic blocks and the second wing rails to form assemblies;
the bottom surface of first mosaic block and the bottom surface parallel and level of first wing rail, the bottom surface of second mosaic block and the bottom surface parallel and level of second wing rail.
2. The fixed type combined frog in accordance with claim 1 wherein said first wing rail and said second wing rail are symmetrical section rails, and the side of the rail head where said first wing rail is mounted to said first mosaic block and where said second wing rail is mounted to said second mosaic block are processed by milling process.
3. The fixed type composite frog in accordance with claim 1 wherein said predetermined position is 60 ± 10mm of the head width of said rail.
4. The fixed combination frog in claim 1 wherein said extension is 30 + 5mm from the head width of said first or second mosaic rail to the free end.
5. The fixed type composite frog in accordance with claim 1 wherein said body segment head is shaped to match the contact surface of the train wheel tread.
6. The fixed type combined frog of claim 1, wherein the fixed type combined frog is uniformly connected by using a bolt connection pair at preset intervals along the extending direction of the fixed type combined frog.
7. The fixed combination frog in accordance with claim 1 wherein said first and second mosaic blocks have a maximum width of 50mm to 70mm.
8. The fixed type combination frog in claim 1 wherein said point rail, said first insert and said second insert are each made of forged alloy steel or cast high manganese steel.
9. The fixed type composite frog in accordance with claim 8 wherein said forged alloy steel has a hardness of 360HBW or more and said cast high manganese steel has a hardness of 229HBW or more.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111552410.3A CN114318963B (en) | 2021-12-17 | 2021-12-17 | Fixed combined frog |
| PCT/CN2021/142224 WO2023108821A1 (en) | 2021-12-17 | 2021-12-28 | Fixed combined frog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111552410.3A CN114318963B (en) | 2021-12-17 | 2021-12-17 | Fixed combined frog |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114318963A CN114318963A (en) | 2022-04-12 |
| CN114318963B true CN114318963B (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111552410.3A Active CN114318963B (en) | 2021-12-17 | 2021-12-17 | Fixed combined frog |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114318963B (en) |
| WO (1) | WO2023108821A1 (en) |
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| 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 |
| CN108978361B (en) * | 2018-07-06 | 2024-06-07 | 中铁宝桥集团有限公司 | Wing rail of movable point frog with speed of 400 km per hour and processing method |
| CN109183527B (en) * | 2018-11-02 | 2023-12-29 | 中铁宝桥集团有限公司 | Unequal-height herringbone-point alloy steel combined frog |
| CN209619758U (en) * | 2019-02-28 | 2019-11-12 | 浙江德盛铁路器材股份有限公司 | A kind of inserted railway frog |
| CN211848650U (en) * | 2019-09-17 | 2020-11-03 | 中铁宝桥集团有限公司 | Combined frog with high smoothness of rail top |
| KR102306154B1 (en) * | 2020-03-17 | 2021-09-28 | 주식회사 세안 | Flange bearing crossing for turnout |
| CN112176783A (en) * | 2020-10-16 | 2021-01-05 | 浙江贝尔轨道装备有限公司 | Embedded combination frog of channel rail alloy steel |
| CN112726296A (en) * | 2021-01-07 | 2021-04-30 | 中铁宝桥集团有限公司 | Split type combination frog |
-
2021
- 2021-12-17 CN CN202111552410.3A patent/CN114318963B/en active Active
- 2021-12-28 WO PCT/CN2021/142224 patent/WO2023108821A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN114318963A (en) | 2022-04-12 |
| WO2023108821A1 (en) | 2023-06-22 |
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