CN112553975A - Bolt-free fastener system for heavy haul railway - Google Patents
Bolt-free fastener system for heavy haul railway Download PDFInfo
- Publication number
- CN112553975A CN112553975A CN202011475303.0A CN202011475303A CN112553975A CN 112553975 A CN112553975 A CN 112553975A CN 202011475303 A CN202011475303 A CN 202011475303A CN 112553975 A CN112553975 A CN 112553975A
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- rail
- iron
- concrete retaining
- iron seat
- concrete
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 210
- 229910052742 iron Inorganic materials 0.000 claims abstract description 105
- 241001669679 Eleotris Species 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
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- 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)
- Dowels (AREA)
- Connection Of Plates (AREA)
Abstract
A bolt-free fastener system of a heavy haul railway comprises a concrete sleeper, wherein the top surface of the concrete sleeper is provided with two concrete retaining shoulders, and a rail bearing groove is formed between the two concrete retaining shoulders; the concrete retaining shoulder is characterized in that a first iron seat is embedded in the inner side of the concrete retaining shoulder, one surface of the upper part of the first iron seat is abutted against one surface of the concrete retaining shoulder facing the inner side, the main part of the abutting surface of the upper part of the first iron seat and the concrete retaining shoulder is an inclined surface, the concrete retaining shoulder forms a corresponding slope at the position where the concrete retaining shoulder is abutted against the inclined surface of the first iron seat in a matching manner, and the slope 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 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 can be buckled and pressed on an iron base plate at the bottom of the steel rail. Is particularly suitable for large-axle heavy-load railways of 40 tons or 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 haul railway.
Background
Heavy-duty railways have been widely valued by countries in the world due to their large capacity, high efficiency and low transportation cost. The fastener system is one of the important components of a heavy haul railway track structure, and plays an important role in keeping track gauge and enhancing the stability of the track structure. The bolt-free fastener system avoids the fastening operation of bolts and nuts due to the simple structure, and greatly reduces the workload of installation and maintenance.
The bolt-free fastener system (CN108625234A) suitable for the 35-45T axle load in the prior art comprises an embedded iron seat, an e-shaped elastic strip, an insulating gauge block and a rubber base plate, wherein the embedded iron seat is embedded in advance when the concrete sleeper is manufactured, the embedded iron seat is inserted into the e-shaped elastic strip 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 base plate is arranged between the steel rail and a rail bearing surface of the concrete sleeper. The fastener system enables the fastener to resist the 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 elastic strip fixed by the embedded iron seat is short of 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 transverse impact resistance of the embedded iron seat is weaker 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 influenced.
Disclosure of Invention
The invention provides a bolt-free fastener system for a heavy haul railway, which moves up a transverse force bearing point of the fastener system by optimizing the matching relationship between an embedded iron seat and a sleeper, thereby achieving the purposes of improving the force bearing 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 haul railway.
The technical solution of the invention is as follows:
a boltless fastener system for heavy haul railways includes,
the concrete sleeper is used for bearing and arranging the steel rail;
a first iron seat, the lower part of which is pre-embedded in the concrete sleeper and is used for fixedly installing the steel rail, wherein,
the top surface of the concrete sleeper is provided with two concrete retaining shoulders, a rail bearing groove is formed between the two concrete retaining shoulders and the top surface of the concrete sleeper for bearing and installing the steel rail, in addition,
at least one surface of the upper part of the first iron seat is attached to one surface of the concrete retaining shoulder facing the inner side, at least the main part of the surface attached to the upper part of the first iron seat and the concrete retaining shoulder is an inclined surface, the concrete retaining shoulder forms a corresponding slope at the position attached to the inclined surface of the first iron seat in a matching way, and at least the slope of the concrete retaining shoulder and the inclined surface of the upper part of the first iron seat are poured together,
the rail gauge block can be buckled and pressed on rail limbs of a steel rail located in the rail bearing groove or an iron base plate at the bottom of the steel rail, and the iron base plate is used for fixedly mounting the steel rail and is arranged in the rail bearing groove.
Further, first iron stand is "T" type structure, including the head structure that is used for installing e shape bullet strip and be used for pre-buried substructure, the inclined plane is located the outside of head structure, and inclination and horizontally contained angle alpha are 100 to 130 degrees.
Furthermore, a flange extends outwards horizontally at the upper end of the inclined plane, and the top surface of the flange is flush with the top surface of the concrete retaining shoulder.
Furthermore, a boss is arranged on the upper portion of the inner side of the first iron seat, and the top surface of the boss is flush with the top surface of the end portion 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 pre-buried iron seat head structure and pre-buried iron seat and sleeper, the head position outside that makes the fixed bullet strip of pre-buried iron seat has horizontal support, and then makes the horizontal stress point in pre-buried iron seat head position shift up, improves the ability that the pre-buried iron seat resisted the transverse impact, and then improves the overall stability and the life of fastener system. Is particularly suitable for large-axle heavy-load railways of 40 tons or more.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention,
figure 2 is a front view of the structure of the iron seat of the 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 gauge 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 sectional view of the iron shim plate of figure 5,
fig. 8 is a top view of the construction of the iron shim plate of fig. 5.
Detailed Description
The invention provides a bolt-free fastener system for heavy haul railways, which is used for fixing rail limbs of railway rails or iron tie plates for fixedly mounting rails at rail bottoms.
A first embodiment of the invention will now be described with reference to figures 1, 2, 3, 4 and 5 of the accompanying drawings, in which a heavy haul railway boltless fastener system is used for the direct fastening of rail limbs of a railway rail 8.
The invention provides a bolt-free fastener system of a heavy haul railway, which comprises,
the concrete sleeper 1 is used for bearing and arranging a steel rail 8;
and the lower part of the first iron seat 3 is pre-embedded in the concrete sleeper 1 and is used for fixedly installing the steel rail 8. Wherein,
the concrete sleeper 1 has two concrete shoulders 2 on the top surface, a rail supporting groove 12 is formed between the two concrete shoulders 2 and the top surface of the concrete sleeper 1 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 retaining 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 retaining shoulder 2 is an inclined surface 9, the concrete retaining shoulder 2 forms a corresponding slope 13 at the abutting part of the concrete retaining shoulder 2 and the inclined surface 9 of the first iron seat 3 in a matching way, and at least the slope 13 of the concrete retaining shoulder 2 is poured together with the inclined surface 9 of the upper part of the first iron seat 3; the first iron base 3 is provided with an e-shaped elastic strip 6, a gauge block 7 is arranged between the inner side of the first iron base 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 the rail limb of the steel rail 8 located in the rail bearing groove 12.
Preferably, the first iron seat 3 is shaped like a "T" in the vertical direction, seen in a direction perpendicular to the rails, with a head structure 4 of the T-shaped structure for mounting the e-shaped spring rails 6 and a substructure 5 of the T-shaped structure for pre-embedding in the concrete sleeper 1. Here, the e-shaped elastic strip 6 is mounted in exactly the same manner as in the prior art. The inclined surface 9 of the first iron seat 3 of the present invention is formed at the head of the T-shaped structure and is located on the outer side surface of the head structure 4 of the T-shaped structure away from the steel rail 8 in the installation state, the inclined surface 9 of the first iron seat 3 forms an inclination angle α of 100 to 130 with the horizontal direction, and correspondingly, the slope 13 on the concrete retaining shoulder 2 poured together with the inclined surface 9 of the first iron seat 3 in a shape fit manner also forms an inclination angle α of 100 to 130 with the horizontal direction. A flange 10 extends outwards horizontally at the upper end of the inclined plane 9 of the first iron seat 3, and the flange 10 and the concrete retaining shoulder 2 are poured together, so that the top surface of the flange 10 is flush with the top surface of the concrete retaining shoulder 2. The upper part of the first iron seat 3 is close to one side of the rail bearing groove and is provided with a boss 11, and the top surface of the boss 11 is flush with the concrete top surface at the end part of the rail bearing groove 12.
Besides the structure of the T-shaped first iron base 3 described above, other structures of the T-shaped first iron base 3, the gauge block 7, and the e-shaped elastic strip 6 can adopt existing structures and installation methods. The gauge block 7 may have a first groove 16 on the outside, 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 gauge block 7 is buckled on the rail limb of the rail 8. As shown in fig. 1, after the first iron seat 3 is poured into the concrete sleeper 1, the slope of the concrete shoulder 2 and the inclined surface of the first iron seat 3 are also substantially in the direction perpendicular to the drawing plane of fig. 1, that is, the slope and the inclined surface are also substantially in the direction extending along the rail.
When in use, the rail lower backing plate 14 is arranged in the rail bearing groove 12, the steel rail 8 is arranged on the rail lower backing plate 18, and the steel rail 8 is buckled and pressed through the e-shaped elastic strip 6 on the iron seat 3 disclosed by the invention.
A second embodiment of the present invention will be described with reference to fig. 2, 3, 4, 5, 6, 7 and 8, wherein the bolt-less fastener system of a heavy haul railway is used for fixedly mounting a pad 15 at the bottom of a rail 8, and the pad 15 is used for fixedly mounting the rail 8 and is disposed in the rail receiving groove 12.
In the drawings, a second embodiment of the invention discloses a heavy haul railway boltless fastener system, comprising,
the concrete sleeper 1 is used for bearing and arranging a steel rail 8;
and the lower part of the first iron seat 3 is pre-embedded in the concrete sleeper 1 and is used for fixedly installing an iron base plate 15 which is used for installing the steel rail 8 and is positioned at the rail bottom of the steel rail 8. Wherein,
the top surface of the concrete sleeper 1 is provided with two concrete retaining shoulders 2, a rail bearing groove 12 is formed between the two concrete retaining shoulders 2 and the top surface of the concrete sleeper 1 for bearing and arranging the iron tie plate 15, and,
at least one surface of the upper part of the first iron seat 3 is abutted against one surface of the concrete retaining 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 retaining shoulder 2 is an inclined surface 9, the concrete retaining shoulder 2 forms a corresponding slope 13 at the abutting part of the concrete retaining shoulder 2 and the inclined surface 9 of the first iron seat 3 in a matching way, and at least the slope 13 of the concrete retaining shoulder 2 and the inclined surface 9 of the upper part of the first iron seat 3 are poured together; and an e-shaped elastic strip 6 is arranged on the first iron seat 3.
Preferably, the first iron seat 3 is shaped like a "T" in the vertical direction, seen in a direction perpendicular to the rails, with a head structure 4 of the T-shaped structure for mounting the e-shaped spring rails 6 and a substructure 5 of the T-shaped structure for pre-embedding in the concrete sleeper 1. Here, the e-shaped elastic strip 6 itself is mounted in exactly the same manner as in the prior art. The inclined surface 9 of the first iron seat 3 of the present invention is formed at the head of the T-shaped structure and is located on the outer side surface of the head structure 4 away from the steel rail 8 in the installation state, the inclined angle α formed by the inclined surface 9 of the first iron seat 3 and the horizontal direction is 100 to 130 degrees, and correspondingly, the inclined surface 13 on the concrete retaining shoulder 2 poured together with the inclined surface 9 of the first iron seat 3 in a shape matching manner also forms an inclined angle α with the horizontal direction of 100 to 130 degrees. A flange 10 extends outwards horizontally at the upper end of the inclined plane 9 of the first iron seat 3, and the flange 10 and the concrete retaining shoulder 2 are poured together, so that the top surface of the flange 10 is flush with the top surface of the concrete retaining shoulder 2. The upper part of the first iron seat 3 is close to one side of the rail bearing groove and is provided with a boss 11, and the top surface of the boss 11 is flush with the concrete top surface at the end part of the rail bearing groove 12.
Besides the structure of the T-shaped first iron base 3 described above, other structures of the T-shaped first iron base 3, the gauge block 7, and the e-shaped elastic strip 6 can adopt existing structures and installation methods.
In the second embodiment of the present invention, the rail groove 12 is provided with an elevation pad 17, the elevation pad 17 is provided with an iron pad 15, the iron pad 15 is provided with a rail lower pad 14, and the steel rail 8 is provided on the rail lower pad 14.
Second iron bases 18 have been welded respectively to 15 up end both sides of iron tie plate, and also install e shape bullet strip 6 on the second iron base 18, be provided with gauge block 7 between second iron base 18 inboard and the rail 8, the gauge block 7 outside has first recess 16, and the inner embedding of second iron base 18 in the first recess 16, suppress gauge block 7 through e shape bullet strip 6 cramp, make gauge block 7 cramp on the rail limb of rail 8.
The two ends of the iron backing plate 15 are respectively provided with a second groove 19.
Similarly to the first embodiment, a gauge block 7 is also arranged between the inner side of the first iron base 3 and the iron shim plate 15, the inner end of the head structure 4 of the first iron base 3 is embedded into the first groove 16, the lower end of the gauge block 7 is embedded into the second groove 19, the iron shim plate 15 is prevented from moving along the line direction, and the gauge block 7 is buckled through an e-shaped elastic strip 6, so that the inner end of the gauge block 7 is buckled at the end part of the iron shim plate 15.
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 inclined surface 9 of the first iron seat 3 are also substantially in the direction perpendicular to the drawing of fig. 5, that is, the slope and the inclined surface are also substantially in the direction extending along the rail.
No matter the first embodiment or the second embodiment of the invention, the first iron seat 3 of the invention bears the transverse force from the steel rail 8 or the iron base plate 15, the transverse force is transmitted to the concrete retaining shoulder 2 arranged on the concrete sleeper through the inclined surface 9 and the inclined surface 13, because the contact surface of the first iron seat 3 and the concrete retaining shoulder 2 is the inclined surface, the transverse force transmitted to the concrete sleeper by the first iron seat 3 is divided into a vertical upward component and a component perpendicular to the inclined surface by the inclined surface, the component in the two directions is changed by the change of the inclined surface gradient of the inclined surface, and the vertical upward component is offset by the uplift resistance generated after the first iron seat is embedded into the sleeper, so that the concrete retaining shoulder 2 only bears the component perpendicular to the inclined surface, the stress condition of the concrete retaining shoulder 2 is obviously optimized, the capability of the embedded iron seat for resisting the transverse impact is improved, the integral stability and the service life of the fastener system are improved, is particularly suitable for large-axle heavy-load railways of 40 tons or more. In addition, the inner side surface of the concrete retaining shoulder 2 is set into a slope, so that on one hand, demolding during sleeper manufacturing is facilitated, on the other hand, the space of a rail bearing groove at the top of the sleeper is increased, and on-site maintenance and curing of a fastener system are facilitated.
The inclination angle alpha formed by the slope 13 and the inclined surface 9 and the horizontal direction is selected to be 100-130 degrees, so that the concrete retaining shoulder 2 can provide enough lateral force support, a part of the lateral force is decomposed into vertical upward component force as far as possible, and the stress condition of the concrete retaining shoulder 2 is optimized to the maximum extent.
The flange 10 and the boss 11 are arranged, so that the positioning of the embedded iron seat during pouring is facilitated, and the flange 10 also has the function of further improving the transverse impact resistance of the embedded iron seat.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the scope of the invention, and therefore all equivalent variations made by the following claims should be included in the scope of the invention.
Claims (4)
1. A boltless fastener system for heavy haul railways includes,
a concrete sleeper (1) for carrying and mounting a rail (8);
a first iron seat (3) with the lower part embedded in the concrete sleeper (1) for fixedly installing the steel rail (8), wherein,
the top surface of the concrete sleeper (1) is provided with two concrete retaining shoulders (2), a rail bearing groove (12) is formed between the two concrete retaining shoulders (2) and the top surface of the concrete sleeper (1) for bearing and installing the steel rail, moreover,
at least one side of the upper part of the first iron seat (3) is attached to one side of the concrete retaining shoulder (2) facing the inner side, at least the main part of the attached side of the upper part of the first iron seat (3) and the concrete retaining shoulder (2) is an inclined plane (9), furthermore, the concrete retaining shoulder (2) forms a corresponding slope (13) at the position where the inclined plane (9) is attached to the first iron seat (3) in a matching way, and at least the slope (13) of the concrete retaining shoulder (2) is cast with the inclined plane (9) on the upper part of the first iron seat (3),
install e shape bullet strip (6) on first iron stand (3), the inboard of first iron stand (3) is provided with gauge block (7), withholds gauge block (7) through e shape bullet strip (6), gauge block (7) can be withheld on the rail limb of rail (8) of sitting in the rail bearing groove, or can be withheld on iron tie plate (15) at the bottom of rail (8) rail, iron tie plate (15) be used for fixed mounting rail (8), and be arranged in rail bearing groove (12).
2. The heavy haul railway boltless fastener system of claim 1 wherein: first iron seat (3) are "T" type structure, including head structure (4) that are used for installing e shape bullet strip (6) and be used for pre-buried substructure (5), inclined plane (9) are located the outside of head structure (4), and inclination and horizontally contained angle alpha are 100 to 130 degrees.
3. The heavy haul railway boltless fastener system of claim 2, wherein: and a flange (10) extends outwards from the upper end of the inclined plane (9) horizontally, the flange (10) and the concrete retaining shoulder (2) are poured together, and the top surface of the flange (10) is flush with the top surface of the concrete retaining shoulder (2).
4. The heavy haul railway boltless fastener system of claim 1, 2 or 3, 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 |
| AU2020481482A AU2020481482B8 (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 |
| MX2023006703A MX2023006703A (en) | 2020-12-15 | 2020-12-17 | BOLT-FREE FASTENING SYSTEM FOR HEAVY TRANSPORT 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 true CN112553975A (en) | 2021-03-26 |
| CN112553975B CN112553975B (en) | 2024-07-05 |
Family
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) | AU2020481482B8 (en) |
| MX (1) | MX2023006703A (en) |
| WO (1) | WO2022126535A1 (en) |
| ZA (1) | ZA202304518B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457632A (en) * | 2021-12-24 | 2022-05-10 | 中铁宝桥集团有限公司 | Large axle load switch fastener |
Families Citing this family (4)
| 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 |
| CN115679754B (en) * | 2022-11-21 | 2025-09-16 | 中铁隆昌铁路器材有限公司 | Self-locking coupling mechanism of vibration-damping fastener and using method thereof |
| CN116791412A (en) * | 2023-06-21 | 2023-09-22 | 库车市科兴煤炭实业有限责任公司 | An anti-slip device for auxiliary inclined shaft rail transportation |
| CN117005249B (en) * | 2023-07-05 | 2025-12-05 | 中国铁建重工集团股份有限公司 | Shoulder-type high-adjustment fastener structure and transportation rail |
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2020
- 2020-12-15 CN CN202011475303.0A patent/CN112553975B/en active Active
- 2020-12-17 MX MX2023006703A patent/MX2023006703A/en unknown
- 2020-12-17 AU AU2020481482A patent/AU2020481482B8/en active Active
- 2020-12-17 WO PCT/CN2020/137325 patent/WO2022126535A1/en not_active Ceased
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2023
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| RU2112823C1 (en) * | 1997-06-09 | 1998-06-10 | Иванов Петр Степанович | Clamp-and-bolt fastening for rails |
| 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 |
| CN204530339U (en) * | 2015-04-09 | 2015-08-05 | 王安斌 | A kind of nonshoulder fastening assembly |
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| 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 boltless fastener assembly suitable for heavy-duty railways with an axle load of 35 to 40 tons |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114457632A (en) * | 2021-12-24 | 2022-05-10 | 中铁宝桥集团有限公司 | Large axle load switch fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020481482B8 (en) | 2025-08-07 |
| AU2020481482A9 (en) | 2024-07-25 |
| AU2020481482A1 (en) | 2023-08-03 |
| MX2023006703A (en) | 2023-06-20 |
| AU2020481482B1 (en) | 2025-07-17 |
| ZA202304518B (en) | 2023-10-25 |
| CN112553975B (en) | 2024-07-05 |
| WO2022126535A1 (en) | 2022-06-23 |
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