CN214737039U - Bolt-free fastener system for heavy haul railway - Google Patents
Bolt-free fastener system for heavy haul railway Download PDFInfo
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- CN214737039U CN214737039U CN202023010013.7U CN202023010013U CN214737039U CN 214737039 U CN214737039 U CN 214737039U CN 202023010013 U CN202023010013 U CN 202023010013U CN 214737039 U CN214737039 U CN 214737039U
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- iron seat
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 214
- 229910052742 iron Inorganic materials 0.000 claims abstract description 107
- 241001669679 Eleotris Species 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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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; a first iron seat is pre-embedded at the inner side of the concrete retaining shoulder, one surface of the upper part of the first iron seat is attached to one surface of the concrete retaining shoulder facing inwards, the main part of the attaching 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 attached to 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 utility model belongs to the technical field of railway fastener system, concretely relates to heavy haul railway does not have bolt fastener system.
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.
SUMMERY OF THE UTILITY MODEL
The utility model provides a no bolt fastener system of heavy haul railway through optimizing the cooperation relation of pre-buried iron seat and sleeper, moves the horizontal force stress point of fastener system upward to reach and improve fastener system stress condition, improve fastener system's overall stability and life, satisfy the purpose of heavy haul railway application condition.
The technical solution of the utility model 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 concrete sleeper top surface is provided with two concrete retaining shoulders, a rail bearing groove is formed between the two concrete retaining shoulders and the concrete sleeper top surface for bearing and installing the steel rail, moreover,
at least one surface of the upper part of the first iron seat is attached to one surface of the concrete retaining shoulder towards the inner side, the main part of the attaching surface of at least 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 part where the concrete retaining shoulder is attached to the inclined surface of the first iron seat in a matching way, and the slope of at least 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 utility model: 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
Figure 1 is a schematic structural view of a first embodiment of the present invention,
FIG. 2 is a front view 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 structural 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 utility model provides a no bolt fastener system of heavy haul railway for the fixed of rail limb of railway rail or the fixed of the iron tie plate that is used for the fixed mounting rail at the bottom of the rail, the utility model discloses an in the system that reveals, towards or be close to on the position by the general call of one side of fixed rail in or inboard etc. and deviate from or keep away from and be used for by the general call of one side of fixed rail outer or outside etc..
A first embodiment of the invention will be described with reference to figures 1, 2, 3, 4 and 5, in which a heavy haul railway boltless fastener system is used for the direct fastening of rail limbs of a railway rail 8.
The utility model 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 supporting 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 and the inclined surface 9 of the upper part of the first iron seat 3 are poured together; 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 bars 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. And the utility model discloses an inclined plane 9 of first iron stand 3 forms the head of T type structure, and is located on the lateral surface of keeping away from rail 8 under the mounted state on the head structure 4 of T type structure, the inclined plane 9 of this first iron stand 3 is 100 to 130 with the angle of inclination alpha that the horizontal direction formed, correspondingly, and slope 13 on the concrete fender shoulder 2 poured together with the inclined plane 9 shape-fit of this first iron stand 3 also is 100 to 130 with the angle of inclination alpha that the horizontal direction formed. 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 top surface of the concrete 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.
During the use, set up rail underboarding 14 in rail groove 12, set up rail 8 on rail underboarding 18, through the utility model discloses an e shape bullet strip 6 on the iron stand 3 withholds rail 8 can.
The second embodiment of the present invention will be described with reference to fig. 2, 3, 4, 5, 6, 7 and 8. the bolt-less fastener system for heavy haul railways of this embodiment is used for fixedly mounting the iron plate 15 at the bottom of the rail 8, and the iron plate 15 is used for fixedly mounting the rail 8 and is disposed in the rail-supporting groove 12.
In the drawings, a second embodiment of the present 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 placing the steel rail 8 and is positioned at the rail bottom of 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 placing 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 in a matching way at the abutting part of the concrete retaining shoulder 2 and the inclined surface 9 of the first iron seat 3, 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 bars 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. And the utility model discloses an inclined plane 9 of first iron seat 3 forms the head of T type structure, and is located head structure 4 is kept away from under the mounted state on the lateral surface of rail 8, and the inclined plane 9 of this first iron seat 3 is 100 to 130 degrees with the angle of inclination alpha that the horizontal direction formed, correspondingly, and slope 13 on the concrete fender shoulder 2 that pours together with the inclined plane 9 shape fit of this first iron seat 3 also is 100 to 130 degrees with the angle of inclination alpha that the horizontal direction formed. 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 top surface of the concrete 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 utility model discloses a second embodiment, set up in the support rail groove 12 and increase backing plate 17, set up iron tie plate 15 on increasing backing plate 17, set up rail lower bolster 14 on iron tie plate 15, set up rail 8 again on rail lower bolster 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 plane 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 utility model, the first iron seat 3 of the utility model 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 slope 13, because the contact surface of the first iron seat 3 and the concrete shoulder 2 is the inclined plane, the transverse force transmitted to the concrete sleeper by the first iron seat 3 is decomposed into a vertical upward component and a component perpendicular to the inclined plane by the inclined plane, the component in two directions is changed by the change of the slope gradient, at the same time, the vertical upward component is offset by the uplift resistance generated after the first iron seat is buried in the sleeper, the concrete shoulder 2 only bears the component perpendicular to the inclined plane, the stress condition of the concrete shoulder 2 is obviously optimized, the capability of the pre-buried iron seat for resisting the transverse impact is improved, and the whole stability and the service life of the fastener system are further 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 utility model discloses set up the location when flange 10, boss 11's purpose main points in being convenient for pre-buried iron stand and pour, flange 10 also has the effect that further improves pre-buried iron stand and resist horizontal impact ability in addition.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (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 rail, moreover,
at least one surface of the upper part of the first iron seat (3) is attached to one surface of the concrete retaining shoulder (2) facing the inner side, at least the main part of the attached 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 attached part of the concrete retaining shoulder 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),
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023010013.7U CN214737039U (en) | 2020-12-15 | 2020-12-15 | Bolt-free fastener system for heavy haul railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023010013.7U CN214737039U (en) | 2020-12-15 | 2020-12-15 | Bolt-free fastener system for heavy haul railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214737039U true CN214737039U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023010013.7U Withdrawn - After Issue CN214737039U (en) | 2020-12-15 | 2020-12-15 | Bolt-free fastener system for heavy haul railway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553975A (en) * | 2020-12-15 | 2021-03-26 | 中铁宝桥集团有限公司 | Bolt-free fastener system for heavy haul railway |
-
2020
- 2020-12-15 CN CN202023010013.7U patent/CN214737039U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553975A (en) * | 2020-12-15 | 2021-03-26 | 中铁宝桥集团有限公司 | Bolt-free fastener system for heavy haul railway |
| CN112553975B (en) * | 2020-12-15 | 2024-07-05 | 中铁宝桥集团有限公司 | Screw-free fastener system for heavy-duty railway |
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Granted publication date: 20211116 Effective date of abandoning: 20240705 |
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