CN112553975B - Screw-free fastener system for heavy-duty railway - Google Patents
Screw-free fastener system for heavy-duty railway Download PDFInfo
- Publication number
- CN112553975B CN112553975B CN202011475303.0A CN202011475303A CN112553975B CN 112553975 B CN112553975 B CN 112553975B CN 202011475303 A CN202011475303 A CN 202011475303A CN 112553975 B CN112553975 B CN 112553975B
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- Prior art keywords
- concrete
- iron seat
- rail
- iron
- shoulder
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 222
- 229910052742 iron Inorganic materials 0.000 claims abstract description 111
- 241001669679 Eleotris Species 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
- E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/62—Rail fastenings incorporating resilient supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Bridges Or Land Bridges (AREA)
- Connection Of Plates (AREA)
- Dowels (AREA)
Abstract
The screw-free fastener system for the heavy haul railway comprises a concrete sleeper, wherein the top surface of the concrete sleeper is provided with two concrete shoulders, and a rail bearing groove is formed between the two concrete shoulders; the concrete shoulder is embedded with a first iron seat, one surface of the upper part of the first iron seat is abutted against one surface of the concrete shoulder facing the inner side, the main part of the abutting surface of the upper part of the first iron seat and the concrete shoulder is an inclined surface, the concrete shoulder forms a corresponding inclined surface in a matched mode at the abutting part of the concrete shoulder and the inclined surface of the first iron seat, and the inclined surface are poured together; the first iron seat is provided with an e-shaped elastic strip, the inner side of the first iron seat is provided with a gauge block, the gauge block is buckled and pressed through the e-shaped elastic strip, and the gauge block can be buckled and pressed on rail limbs of a steel rail located in a rail bearing groove or an iron backing plate at the rail bottom of the steel rail. Is particularly suitable for heavy-duty railways with large axle weights of 40 tons and more.
Description
Technical Field
The invention belongs to the technical field of railway fastener systems, and particularly relates to a bolt-free fastener system for a heavy-duty railway.
Background
Heavy haul railways are widely valued by countries around the world because of their large capacity, high efficiency and low transportation costs. The fastener system is taken as one of important components of the heavy haul railway track structure, and plays an important role in maintaining the track gauge and enhancing the stability of the track structure. The bolt-free fastener system has the advantages that the structure is simple, the fastening operation of bolts and nuts is avoided, and the installation and maintenance workload is greatly reduced.
The prior art is suitable for a bolt-free fastener system (CN 108625234A) with a 35-45T axle weight, and comprises an embedded iron seat, an e-shaped elastic strip, an insulating gauge block and a rubber backing plate, wherein the embedded iron seat is embedded in advance when a concrete sleeper is manufactured, the e-shaped elastic strip is inserted into the embedded iron seat to buckle a steel rail, the insulating gauge block is arranged between a retaining shoulder of the embedded iron seat and the steel rail, and the rubber backing plate is arranged between the steel rail and a bearing rail surface of the concrete sleeper. The fastener system enables the fastener to resist overlarge torsional deformation of the steel rail through the improved design of the elastic strip and the embedded iron seat. However, the outer side of the upper section of the embedded iron seat of the fastener system is still suspended, so that the outer side of the head position of the fixed elastic strip of the embedded iron seat lacks transverse support, the transverse stress point of the embedded iron seat is positioned at the lower section of the iron seat, and the transverse stress point is lower, so that the embedded iron seat has weaker transverse impact resistance under the condition of large axle load of 40 tons or more, and the overall stability and the service life of the fastener system are seriously affected.
Disclosure of Invention
The invention provides a screw-free fastener system for a heavy-load railway, which moves up a transverse force bearing point of the fastener system by optimizing the matching relation between an embedded iron seat and a sleeper, so as to achieve the purposes of improving the stress condition of the fastener system, improving the overall stability and the service life of the fastener system and meeting the application condition of the heavy-load railway.
The technical solution of the invention is as follows:
a screw-free fastener system for heavy haul railway comprises,
The concrete sleeper is used for bearing and arranging the steel rail;
A first iron seat, the lower part of which is pre-buried in the concrete sleeper and is used for fixedly installing the steel rail, wherein,
The concrete sleeper top surface is provided with two concrete shoulders, a rail bearing groove is formed between the two concrete shoulders and the concrete sleeper top surface and is used for bearing and installing the steel rail, and
At least one surface of the upper part of the first iron seat is abutted against one surface of the concrete shoulder facing the inner side, at least the main part of the abutting surface of the upper part of the first iron seat and the concrete shoulder is an inclined surface, the concrete shoulder forms a corresponding inclined surface in a matching way at the abutting part of the concrete shoulder and the inclined surface of the first iron seat, at least the inclined surface of the concrete shoulder and the inclined surface of the upper part of the first iron seat are poured together,
The first iron seat is provided with an e-shaped elastic strip, the inner side of the first iron seat is provided with a gauge block, the gauge block is buckled and pressed through the e-shaped elastic strip, the gauge block can be buckled and pressed on rail limbs of a steel rail located in a rail bearing groove or an iron backing plate at the rail bottom of the steel rail, and the iron backing plate is used for fixedly installing the steel rail and is arranged in the rail bearing groove.
Further, the first iron seat is of a T-shaped structure and comprises a head structure for installing an e-shaped elastic strip and a lower structure for embedding, the inclined plane is located on the outer side of the head structure, and the included angle alpha between the inclined plane and the horizontal plane is 100-130 degrees.
Further, the upper end of the inclined plane horizontally extends outwards to form a flange, and the top surface of the flange is flush with the top surface of the concrete shoulder.
Further, the upper part of the inner side of the first iron seat is provided with a boss, and the top surface of the boss is flush with the top surface of the end part of the rail bearing groove.
Compared with the prior art, the invention has the advantages that: through improving sleeper top shape, optimizing the cooperation relation of embedded iron seat head structure and embedded iron seat and sleeper, make the head position outside of the fixed bullet strip of embedded iron seat have horizontal support, and then make the horizontal stress point of embedded iron seat head position shift up, improve the embedded iron seat and resist the ability of horizontal impact, and then improve fastener system's overall stability and life. Is particularly suitable for heavy-duty railways with large axle weights of 40 tons and more.
Drawings
Figure 1 is a schematic structural view of a first embodiment of the present invention,
Figure 2 is a front view of the structure of the iron seat of the present invention,
Figure 3 is a left side view of figure 2,
Figure 4 is a top view of figure 2,
Figure 5 is a perspective view of the structure of the gage block of the present invention,
Figure 6 is a schematic structural view of a second embodiment of the present invention,
Figure 7 is a structural cross-sectional view of the iron shim plate of figure 5,
Fig. 8 is a top view of the iron shim plate of fig. 5.
Detailed Description
The invention provides a screw-free fastener system for a heavy-duty railway, which is used for fixing rail limbs of railway rails or fixing iron pads for fixedly mounting rails on rail bottoms of the rails.
A first embodiment of the present invention, a heavy haul railway screw-free fastening system for fastening directly to a rail limb of a railway rail 8, is described below with reference to figures 1, 2,3,4, 5.
The invention provides a screw-free fastener system for a heavy-duty railway, which comprises,
A concrete sleeper 1 for carrying and positioning rails 8;
the lower part of the first iron seat 3 is pre-buried in the concrete sleeper 1 and is used for fixedly mounting the steel rail 8. Wherein,
The concrete sleeper 1 has two concrete shoulders 2 on its top surface, a rail-bearing groove 12 is formed between the two concrete shoulders 2 and the concrete sleeper 1 top surface for bearing and mounting the rail 8, and
At least one surface of the upper part of the first iron seat 3 is abutted against one surface of the concrete shoulder 2 facing the inner side, at least the main part of the abutted surface of the upper part of the first iron seat 3 and the concrete shoulder 2 is an inclined surface 9, the concrete shoulder 2 forms a corresponding inclined surface 13 in a matched manner at the abutted part of the concrete shoulder 2 and the inclined surface 9 of the upper part of the first iron seat 3, and at least the inclined surface 13 of the concrete shoulder 2 and the inclined surface 9 of the upper part of the first iron seat 3 are poured together; an e-shaped elastic strip 6 is arranged on the first iron seat 3, a gauge block 7 is arranged between the inner side of the first iron seat 3 and the steel rail 8, the gauge block 7 is buckled and pressed through the e-shaped elastic strip 6, and the gauge block 7 can be buckled and pressed on rail limbs of the steel rail 8 located in the rail bearing groove 12.
Preferably, the first iron seat 3 is vertically shaped like a "T" shaped structure seen in a direction perpendicular to the rails, the T-shaped structure having a T-shaped structure head structure 4 for mounting an e-shaped spring strip 6 and a T-shaped structure lower structure 5 for embedding in the concrete sleeper 1. Here, the e-shaped spring strip 6 is mounted in exactly the same way as in the prior art. The inclined plane 9 of the first iron seat 3 is formed on the head of the T-shaped structure and is positioned on the outer side surface of the head structure 4 of the T-shaped structure, which is far away from the steel rail 8 in the installation state, the inclined plane 9 of the first iron seat 3 forms an inclined angle alpha of 100 to 130 with the horizontal direction, and correspondingly, the inclined plane 13 of the concrete shoulder 2 which is in shape fit with the inclined plane 9 of the first iron seat 3 also forms an inclined angle alpha of 100 to 130 with the horizontal direction. At the upper end of the inclined surface 9 of the first iron seat 3, a flange 10 extends horizontally outwards, and the flange 10 and the concrete shoulder 2 are poured together, so that the top surface of the flange 10 is level with the top surface of the concrete shoulder 2. The upper part of the first iron seat 3 is close to one side of the rail bearing groove, a boss 11 is arranged on the upper part of the first iron seat, and the top surface of the boss 11 is flush with the top surface of concrete at the end part of the rail bearing groove 12.
In addition to the structure of the T-shaped first iron holder 3 described above, other structures of the T-shaped first iron holder 3, and the gauge block 7, and the e-shaped spring bar 6 may be constructed and installed in a conventional manner. The outside of the gage block 7 may have a first groove 16, and the inner end of the head structure 4 of the first iron seat 3 is embedded in the first groove 16, and the inner end of the gage block 7 is buckled on the rail limb of the rail 8. In addition, as shown in fig. 1, after the first iron seat 3 is cast in the concrete sleeper 1, the slope of the concrete shoulder 2 and the slope of the first iron seat 3 are also substantially in a direction perpendicular to the drawing plane of fig. 1, that is, the slope and the slope are also substantially in a direction along the rail extension.
When in use, the rail support groove 12 is provided with the rail lower backing plate 14, the steel rail 8 is arranged on the rail lower backing plate 18, and the steel rail 8 is buckled and pressed by the e-shaped elastic strip 6 on the iron seat 3.
A second embodiment of the present invention will be described below with reference to fig. 2, 3,4, 5, 6, 7, 8, in which the heavy haul railway screw-free fastening system is used for fixedly mounting an iron pad 15 at the bottom of a rail 8, and the iron pad 15 is used for fixedly mounting the rail 8 and is placed in the rail receiving groove 12.
In the drawings, a second embodiment of the present invention discloses a screw-less fastening system for heavy haul railways, comprising,
A concrete sleeper 1 for carrying and positioning rails 8;
The lower part of the first iron seat 3 is pre-buried in the concrete sleeper 1 and is used for fixedly mounting an iron base plate 15 for placing the steel rail 8 and positioned at the rail bottom of the steel rail 8. Wherein,
The concrete sleeper 1 has two concrete shoulders 2 on its top surface, a rail-bearing groove 12 is formed between the two concrete shoulders 2 and the concrete sleeper 1 top surface for bearing and placing the iron pad 15, and
At least one surface of the upper part of the first iron seat 3 is abutted against one surface of the concrete shoulder 2 facing the inner side, at least the main part of the abutted surface of the upper part of the first iron seat 3 and the concrete shoulder 2 is an inclined surface 9, the concrete shoulder 2 forms a corresponding inclined surface 13 in a matched manner at the abutted part of the concrete shoulder 2 and the inclined surface 9 of the upper part of the first iron seat 3, and at least the inclined surface 13 of the concrete shoulder 2 and the inclined surface 9 of the upper part of the first iron seat 3 are poured together; an e-shaped elastic strip 6 is arranged on the first iron seat 3.
Preferably, the first iron seat 3 is vertically shaped like a "T" shaped structure seen in a direction perpendicular to the rails, the T-shaped structure having a T-shaped structure head structure 4 for mounting an e-shaped spring strip 6 and a T-shaped structure lower structure 5 for embedding in the concrete sleeper 1. Here, the e-shaped spring strip 6 itself is mounted in exactly the same way as in the prior art. The inclined plane 9 of the first iron seat 3 is formed on the head of the T-shaped structure and is positioned on the outer side surface of the head structure 4, which is far away from the steel rail 8 in the installation state, the inclined plane 9 of the first iron seat 3 forms an inclined angle alpha of 100 to 130 degrees with the horizontal direction, and correspondingly, the inclined plane 13 on the concrete shoulder 2 which is in shape fit casting with the inclined plane 9 of the first iron seat 3 also forms an inclined angle alpha of 100 to 130 degrees with the horizontal direction. At the upper end of the inclined surface 9 of the first iron seat 3, a flange 10 extends horizontally outwards, and the flange 10 and the concrete shoulder 2 are poured together, so that the top surface of the flange 10 is level with the top surface of the concrete shoulder 2. The upper part of the first iron seat 3 is close to one side of the rail bearing groove, a boss 11 is arranged on the upper part of the first iron seat, and the top surface of the boss 11 is flush with the top surface of concrete at the end part of the rail bearing groove 12.
In addition to the structure of the T-shaped first iron holder 3 described above, other structures of the T-shaped first iron holder 3, and the gauge block 7, and the e-shaped spring bar 6 may be constructed and installed in a conventional manner.
In the second embodiment of the present invention, the height-adjusting shim plate 17 is disposed in the rail-bearing groove 12, the iron shim plate 15 is disposed on the height-adjusting shim plate 17, the rail lower shim plate 14 is disposed on the iron shim plate 15, and the steel rail 8 is disposed on the rail lower shim plate 14.
The two sides of the upper end face of the iron base plate 15 are respectively welded with a second iron seat 18, an e-shaped elastic strip 6 is also arranged on the second iron seat 18, a track gauge block 7 is arranged between the inner side of the second iron seat 18 and the steel rail 8, a first groove 16 is arranged on the outer side of the track gauge block 7, the inner end of the second iron seat 18 is embedded into the first groove 16, the track gauge block 7 is buckled through the e-shaped elastic strip 6, and the track gauge block 7 is buckled on a rail limb of the steel rail 8.
The two ends of the iron pad 15 are respectively provided with a second groove 19.
Similarly to the first embodiment, a gauge block 7 is also disposed between the inner side of the first iron seat 3 and the iron pad 15, and the inner end of the head structure 4 of the first iron seat 3 is embedded in the first groove 16, and the lower end of the gauge block 7 is embedded in the second groove 19, so that the iron pad 15 is prevented from moving along the line direction, the gauge block 7 is buckled by the e-shaped elastic strip 6, and the inner end of the gauge block 7 is buckled at the end of the iron pad 15.
In addition, as shown in fig. 5, after the first iron seat 3 is poured into the concrete sleeper 1, the slope 13 of the concrete shoulder 2 and the slope 9 of the first iron seat 3 are also substantially in a direction perpendicular to the drawing plane of fig. 5, that is, the slope and the slope are also substantially in a direction extending along the rail.
Whether the first embodiment or the second embodiment of the invention is characterized in that the first iron seat 3 bears the transverse force from the steel rail 8 or the iron backing plate 15, the transverse force is transmitted to the concrete shoulder 2 arranged on the concrete sleeper through the inclined plane 9 and the inclined plane 13, and the contact surface of the first iron seat 3 and the concrete shoulder 2 is the inclined plane, so that the transverse force transmitted to the concrete sleeper by the first iron seat 3 is decomposed into a vertical component force and a component force vertical to the inclined plane by the inclined plane, the component force in the two directions is changed by the change of the inclined plane gradient, and meanwhile, the vertical component force is counteracted by the pulling resistance generated after the first iron seat is embedded into the sleeper, so that the concrete shoulder 2 only bears the component force vertical to the inclined plane, the stress condition of the concrete shoulder 2 is obviously optimized, the capability of resisting transverse impact of the first iron seat is improved, and the integral stability and the service life of a fastener system are further improved, and the fastener system is particularly suitable for being used for large-axle-weight heavy-duty railways of 40 tons and above. In addition, the inner side surface of the concrete shoulder 2 is provided with a slope, so that demolding is facilitated during sleeper manufacturing, and the space of a rail bearing groove at the top of the sleeper is increased, so that the on-site maintenance of the fastener system is facilitated.
The inclination angle alpha formed by the slope 13, the inclined plane 9 and the horizontal direction is selected to be 100-130 degrees, and the purpose of the invention is mainly to ensure that the concrete shoulder 2 can provide enough transverse force support, and to decompose a part of transverse force into vertical upward component force as far as possible, so that the stress condition of the concrete shoulder 2 is optimized to the greatest extent.
The flange 10 and the boss 11 are arranged, so that the positioning of the embedded iron seat in pouring is facilitated, and the flange 10 has the function of further improving the transverse impact resistance of the embedded iron seat.
The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention, so that all equivalent modifications made by the appended claims shall be included in the scope of the present invention.
Claims (3)
1. A screw-free fastener system for heavy haul railway comprises,
The concrete sleeper (1) is used for bearing and arranging the steel rail (8);
A first iron seat (3) with the lower part pre-buried in the concrete sleeper (1) for fixedly mounting the steel rail (8), wherein,
The top surface of the concrete sleeper (1) is provided with two concrete shoulders (2), a rail bearing groove (12) is formed between the two concrete shoulders (2) and the top surface of the concrete sleeper (1) for bearing and installing the steel rail, and
At least one surface of the upper part of the first iron seat (3) is abutted against one surface of the concrete shoulder (2) facing the inner side, at least the main part of the abutting surface of the upper part of the first iron seat (3) and the concrete shoulder (2) is an inclined surface (9), the concrete shoulder (2) forms a corresponding inclined surface (13) in a matched manner at the abutting part of the concrete shoulder and the inclined surface (9) of the first iron seat (3), at least the inclined surface (13) of the concrete shoulder (2) and the inclined surface (9) of the upper part of the first iron seat (3) are poured together,
An e-shaped elastic strip (6) is arranged on the first iron seat (3), a gauge block (7) is arranged on the inner side of the first iron seat (3), the gauge block (7) is buckled through the e-shaped elastic strip (6), the gauge block (7) can be buckled on a rail limb of a steel rail (8) located in a rail bearing groove, or can be buckled on an iron base plate (15) at the rail bottom of the steel rail (8), and the iron base plate (15) is used for fixedly installing the steel rail (8) and is arranged in the rail bearing groove (12);
The first iron seat (3) is of a T-shaped structure and comprises a head structure (4) for installing an e-shaped elastic strip (6) and a lower structure (5) for embedding, wherein the inclined plane (9) is positioned on the outer side of the head structure (4), and the included angle alpha between the inclined angle and the horizontal is 100-130 degrees.
2. The heavy haul railway screwless fastener system of claim 1, wherein: the upper end of the inclined plane (9) horizontally extends outwards to form a flange (10), the flange (10) and the concrete shoulder (2) are poured together, and the top surface of the flange (10) is flush with the top surface of the concrete shoulder (2).
3. The heavy haul railway screwless fastener system of claim 1 or 2, wherein: the upper part of the inner side of the first iron seat (3) is provided with a boss (11), and the top surface of the boss (11) is flush with the top surface of the rail bearing groove (12).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011475303.0A CN112553975B (en) | 2020-12-15 | 2020-12-15 | Screw-free fastener system for heavy-duty railway |
| MX2023006703A MX2023006703A (en) | 2020-12-15 | 2020-12-17 | Boltless fastener system for heavy-haul railways. |
| PCT/CN2020/137325 WO2022126535A1 (en) | 2020-12-15 | 2020-12-17 | Boltless fastener system for heavy-haul railways |
| AU2020481482A AU2020481482A1 (en) | 2020-12-15 | 2020-12-17 | Boltless fastener system for heavy haul railways |
| ZA2023/04518A ZA202304518B (en) | 2020-12-15 | 2023-04-18 | Boltless fastener system for heavy-haul railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011475303.0A CN112553975B (en) | 2020-12-15 | 2020-12-15 | Screw-free fastener system for heavy-duty railway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112553975A CN112553975A (en) | 2021-03-26 |
| CN112553975B true CN112553975B (en) | 2024-07-05 |
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ID=75063570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011475303.0A Active CN112553975B (en) | 2020-12-15 | 2020-12-15 | Screw-free fastener system for heavy-duty railway |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN112553975B (en) |
| AU (1) | AU2020481482A1 (en) |
| MX (1) | MX2023006703A (en) |
| WO (1) | WO2022126535A1 (en) |
| ZA (1) | ZA202304518B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115198574B (en) * | 2022-08-10 | 2023-05-09 | 中铁六局集团有限公司 | Bearing structure of whole ballast bed line poking alloy steel plate track and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214737039U (en) * | 2020-12-15 | 2021-11-16 | 中铁宝桥集团有限公司 | Bolt-free fastener system for heavy haul railway |
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| JP4980995B2 (en) * | 2008-07-07 | 2012-07-18 | 東日本旅客鉄道株式会社 | Rail fastening structure and fastening method |
| CN203007739U (en) * | 2012-09-29 | 2013-06-19 | 中国铁道科学研究院铁道建筑研究所 | Stopping-shoulder-free fastening assembly with iron base plate |
| CN203938937U (en) * | 2014-04-30 | 2014-11-12 | 洛阳双瑞橡塑科技有限公司 | A kind of multistage non-bolt fastener assembly of heightening |
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| CN206486750U (en) * | 2017-02-09 | 2017-09-12 | 北京晋佰新技术有限公司 | Band elasticity is without the heavily loaded fastener of quarrel non-shoulder |
| CN207159714U (en) * | 2017-03-29 | 2018-03-30 | 安阳市铁路器材有限责任公司 | A kind of subway fastener system |
| CN108625234B (en) * | 2018-05-31 | 2020-06-26 | 中国铁道科学研究院铁道建筑研究所 | Bolt-free fastener assembly suitable for heavy haul railway with axle weight of 35-40 tons |
| CN208792059U (en) * | 2018-05-31 | 2019-04-26 | 中国铁道科学研究院铁道建筑研究所 | A kind of non-bolt fastener assemblies weighing 35~40 tons of heavy haul railways suitable for axis |
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2020
- 2020-12-15 CN CN202011475303.0A patent/CN112553975B/en active Active
- 2020-12-17 WO PCT/CN2020/137325 patent/WO2022126535A1/en active Application Filing
- 2020-12-17 AU AU2020481482A patent/AU2020481482A1/en active Pending
- 2020-12-17 MX MX2023006703A patent/MX2023006703A/en unknown
-
2023
- 2023-04-18 ZA ZA2023/04518A patent/ZA202304518B/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214737039U (en) * | 2020-12-15 | 2021-11-16 | 中铁宝桥集团有限公司 | Bolt-free fastener system for heavy haul railway |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022126535A1 (en) | 2022-06-23 |
| MX2023006703A (en) | 2023-06-20 |
| AU2020481482A1 (en) | 2023-08-03 |
| AU2020481482A9 (en) | 2024-07-25 |
| CN112553975A (en) | 2021-03-26 |
| ZA202304518B (en) | 2023-10-25 |
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