CN118292307A - Rail fastener and railway rail fastener system - Google Patents

Abstract

The invention relates to the technical field of transportation equipment, in particular to a steel rail fastener and a railway steel rail fastener system. When the impact effect of the train with increased axle weight on the track structure and the fastener is obviously increased, the impact force can be effectively released, the spring strip is prevented from being broken or the fastener is prevented from being damaged, or the rail crawling problem is caused due to insufficient longitudinal resistance, and the running safety of the train is ensured.

Description

Rail fastener and railway rail fastener system

Technical Field

The invention relates to the technical field of transportation equipment, in particular to a steel rail fastener and a railway steel rail fastener system.

Background

As one of the important components of a railway track, a fastener system secures the rail to the tie, maintains the gauge and resists movement of the rail in the longitudinal and transverse directions relative to the tie. The fastener can effectively keep the reliable connection between the steel rail and the sleeper for a long time, and can fully exert the buffering and damping performances under the action of power, thereby delaying the residual deformation accumulation of the rail. It is required to have sufficient strength, durability and a certain elasticity. In addition, the rail fastener system for heavy haul railway should have greater buckling force, longitudinal resistance and stability.

At present, a fastener system generally adopts a single anchoring bolt to be matched with a nut or a single screw spike to be matched with an embedded screw pipe to realize the buckling of a spring strip to a steel rail, buffer the stress of the rail and realize the longitudinal limit of the rail. For heavy haul railways, the impact effect of the trains on track structures, particularly fastener systems, is significantly increased due to the increase in axle weights, particularly the advent of 30t, 40t axle weight trains. Because can't obtain effectual release, the bullet strip fracture can appear in some sections, perhaps the fastener system part damages, or the rail crawl because the longitudinal resistance is insufficient, has caused very big potential safety hazard to the operation of train.

Disclosure of Invention

The invention provides a steel rail fastener and a railway steel rail fastener system, which are used for solving one of the defects in the prior art, and can effectively release impact force when the impact effect of a train with increased axle weight on a track structure and a fastener is obviously increased, so that the problem of steel rail crawling caused by broken elastic strips or damaged fasteners or insufficient longitudinal resistance is avoided, and the running safety of the train is ensured.

The invention provides a steel rail fastener which comprises a first spiral spike, a second spiral spike, a spring strip and a track gauge baffle, wherein the spring strip is surrounded by a first installation channel and a second installation channel, the track gauge baffle is provided with a first installation hole and a second installation hole, the first spiral spike sequentially penetrates through the first installation channel and the first installation hole and is connected with a sleeper, the second spiral spike sequentially penetrates through the second installation channel and the second installation hole and is connected with the sleeper, the spring strip comprises two front end parts and two rear end parts, the two front end parts are used for being pressed on the side edges of a steel rail, and the two rear end parts are pressed on the track gauge baffle.

According to the steel rail fastener provided by the invention, the elastic strip further comprises a first elastic arm, a second elastic arm and a third elastic arm, wherein the second elastic arm is positioned between the first elastic arm and the third elastic arm, the first elastic arm is connected with the second elastic arm through one rear end part and limits the first installation channel, the second elastic arm is connected with the third elastic arm through the other rear end part and limits the second installation channel, the first elastic arm is connected with one front end part, and the third elastic arm is connected with the other front end part.

According to the steel rail fastener provided by the invention, the elastic strip further comprises a first middle end part and a second middle end part which are arranged on the same side as the front end part, the first middle end part and the second middle end part are symmetrically arranged on two sides of the second elastic arm and are connected with the second elastic arm, the first middle end part extends towards one front end part, and the second middle end part extends towards the other front end part.

The steel rail fastener further comprises a gauge block, wherein the gauge block is clamped between the steel rail and the gauge baffle, a groove is formed in the upper surface of the gauge block, and the first middle end portion and the second middle end portion are embedded into the groove.

According to the steel rail fastener provided by the invention, two convex parts are arranged on one side of the gauge block, which is abutted against the gauge baffle, and the vertical distance between the two convex parts is the length of the gauge baffle along the extending direction of the steel rail.

The rail fastener provided by the invention further comprises a rail lower backing plate, wherein the rail lower backing plate is provided with a first bulge, and the first bulge is used for being embedded into a limit groove of the sleeper.

According to the steel rail fastener provided by the invention, the rail lower backing plate is further provided with two second bulges, the two second bulges are respectively arranged on two sides of the first bulge, and the vertical distance between the two second bulges is the length of the sleeper along the extending direction of the steel rail.

According to the steel rail fastener provided by the invention, the gauge baffle comprises a bottom plate, a first side plate, a second side plate and two reinforcing ribs, wherein the first side plate, the second side plate and the two reinforcing ribs are arranged on the upper surface of the bottom plate, the first side plate and the second side plate are oppositely arranged, the first side plate is in butt joint with the gauge block, the second side plate is in butt joint with the sleeper, the two reinforcing ribs are arranged between the first side plate and the second side plate, the first mounting holes and the second mounting holes are all arranged on the bottom plate and are positioned between the two reinforcing ribs, the end parts, close to the second side plate, of the two reinforcing ribs are respectively provided with a dent, and the two rear end parts are respectively pressed in the two dents.

The steel rail fastener further comprises a cover plate, wherein the cover plate is provided with a first through hole and a second through hole, the first screw spike penetrates through the first through hole to enter the first installation channel, and the second screw spike penetrates through the second through hole to enter the second installation channel.

The invention also provides a railway steel rail fastener system which comprises a sleeper and the steel rail fastener, wherein the sleeper is provided with a mounting groove, a first embedded screw pipe and a second embedded screw pipe are arranged in the sleeper, the steel rail fastener is arranged in the mounting groove, a limit groove is formed in the bottom of the mounting groove, the first screw spike is screwed into the first embedded screw pipe, and the second screw spike is screwed into the second embedded screw pipe.

The steel rail fastener provided by the invention is arranged on the sleeper and positioned in the width direction of the steel rail, so that the steel rail is fastened and fixed on the sleeper. The elastic strip is bent by itself to enclose two relatively independent mounting channels, namely a first mounting channel and a second mounting channel, the gauge baffle is correspondingly provided with a first mounting hole and a second mounting hole, the first bolt spike sequentially penetrates through the first mounting channel and the first mounting hole from top to bottom and then is connected with the sleeper, and the second bolt spike sequentially penetrates through the second mounting channel and the second mounting hole from top to bottom and then is connected with the sleeper.

In the transverse direction, one end of the elastic strip, which is close to the steel rail, is constructed to be a front end part, one end of the elastic strip, which is far away from the steel rail, is constructed to be a rear end part, after the first bolt spike and the second bolt spike are screwed, the first bolt spike can be directly pressed on the elastic strip, the front end part is pressed on the upper surface of the side edge on the width of the steel rail, and the rear end part is pressed on the gauge baffle, so that the elastic strip can be used for buckling and fixing the steel rail on the sleeper, the elastic strip can be elastically deformed, the rail stress is buffered, and the longitudinal position of the steel rail on the sleeper is fixed. The two sides of the gauge chock block in the transverse direction are respectively abutted against the steel rail and the sleeper, so that the transverse position of the steel rail on the sleeper is fixed.

The elastic strip is fixed on the gauge baffle plate firstly through the first bolt spike and the second screw spike to form the double screw spike, and then the elastic strip and the gauge baffle plate are integrally fixed on the sleeper, so that the longitudinal resistance of the track structure is increased, the stability of the track structure is ensured, and the action length of the elastic strip is longer than that of the traditional elastic strip, so that the elastic strip is longer in the length direction of the steel rail, and the longitudinal resistance of the fastener acting on the steel rail is further increased. Compared with the prior art that the elastic strip is buckled and pressed on the steel rail by adopting the matching of a single anchoring bolt and a nut or the matching of a single screw spike and an embedded screw pipe, the embodiment of the invention can effectively release the impact force when the impact effect of a train with increased axle weight on a track structure and a fastener is obviously increased, avoid the breakage of the elastic strip or the damage of the fastener, or ensure the operation safety of the train due to the problem of rail crawling caused by insufficient longitudinal resistance.

In addition to the technical problems, features of the constituent technical solutions and advantages brought by the technical features of the technical solutions described above, other technical features of the present invention and advantages brought by the technical features of the technical solutions will be further described with reference to the accompanying drawings or will be understood through practice of the present invention.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of one of the construction of a railway rail fastener system provided in accordance with an embodiment of the present invention;

FIG. 2 is a second schematic view of a railway rail fastener system according to an embodiment of the present invention;

FIG. 3 is a schematic view of a spring strip of a rail fastener according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of a gage block of a rail fastener according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of a rail pad of a rail fastener according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of a gage baffle of a rail fastener according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a cover plate of a rail fastener according to an embodiment of the present invention;

fig. 8 is a schematic view of a sleeper of a railway rail fastener system according to an embodiment of the present invention.

Reference numerals:

100. a first helical spike; 200. a second helical spike;

300. Spring strips; 310. a first mounting channel; 320. a second mounting channel; 331. a first front end portion; 332. a second front end portion; 341. a first rear end portion; 342. a second rear end portion; 350. a first spring arm; 360. a second spring arm; 370. a third spring arm; 381. a first intermediate end; 382. a second intermediate end;

400. a gauge baffle; 410. a first mounting hole; 420. a second mounting hole; 430. a bottom plate; 440. a first side plate; 441. an opening; 450. a second side plate; 461. a first reinforcing rib; 462. a second reinforcing rib; 463. a first recess; 464. a second recess;

500. A gage block; 510. a groove; 521. a first convex portion; 522. a second convex portion; 530. a bayonet;

600. a rail pad; 610. a first protrusion; 620. a second protrusion;

700. A cover plate; 710. a first through hole; 720. a second through hole;

800. Sleeper; 810. a mounting groove; 820. the first embedded spiral tube; 830. the second embedded spiral tube; 840. a limit groove; 850. shoulder rest;

900. A rail.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Furthermore, in the description of the embodiments of the present invention, unless otherwise indicated, the meaning of "a plurality of", "a plurality of" means two or more, and the meaning of "a plurality of", "a plurality of" means one or more ".

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The extending direction of the rail is defined as the longitudinal direction, the horizontal direction perpendicular to the extending direction of the rail is defined as the width direction of the rail, and the transverse direction.

As shown in fig. 1,2,3 and 6, the rail fastener provided by the embodiment of the invention comprises a first screw spike 100, a second screw spike 200, a spring strip 300 and a gauge baffle 400, wherein a first mounting channel 310 and a second mounting channel 320 are surrounded by the spring strip 300, the gauge baffle 400 is provided with a first mounting hole 410 and a second mounting hole 420, the first screw spike 100 sequentially penetrates through the first mounting channel 310 and the first mounting hole 410 and is connected with a sleeper 800, the second screw spike 200 sequentially penetrates through the second mounting channel 320 and the second mounting hole 420 and is connected with the sleeper 800, the spring strip 300 comprises two front end parts and two rear end parts, the two front end parts are used for being pressed on the side edge of the rail 900, and the two rear end parts are pressed on the gauge baffle 400.

The rail fastener of the embodiment of the invention is arranged on the sleeper 800 and is positioned in the width direction of the rail 900, so that the rail 900 is buckled and fixed on the sleeper 800. The elastic strip 300 is bent to enclose two relatively independent mounting channels, namely a first mounting channel 310 and a second mounting channel 320, a first mounting hole 410 and a second mounting hole 420 are correspondingly formed in the gauge baffle 400, a first bolt spike sequentially penetrates through the first mounting channel 310 and the first mounting hole 410 from top to bottom and then is connected with the sleeper 800, and a second bolt spike sequentially penetrates through the second mounting channel 320 and the second mounting hole 420 from top to bottom and then is connected with the sleeper 800.

In the transverse direction, one end of the elastic strip 300 close to the steel rail 900 is configured as a front end part, one end of the elastic strip 300 far away from the steel rail 900 is configured as a rear end part, after the first bolt spike and the second bolt spike are screwed, the elastic strip 300 can be directly pressed on the elastic strip 300, the front end part is pressed on the upper surface of the side edge positioned on the width of the steel rail 900, and the rear end part is pressed on the gauge baffle 400, so that the elastic strip 300 can clamp and fix the steel rail 900 on the sleeper 800, the elastic strip 300 can elastically deform, track stress is buffered, and the longitudinal position of the steel rail 900 on the sleeper 800 is fixed. The two sides of the gauge block in the transverse direction are respectively abutted against the steel rail 900 and the sleeper 800, so that the transverse position of the steel rail 900 on the sleeper 800 is fixed.

The first bolt spike and the second screw spike 200 form a double-screw spike, the elastic strip 300 is firstly fixed on the gauge baffle 400, and then the elastic strip 300 and the gauge baffle 400 are integrally fixed on the sleeper 800, so that the longitudinal resistance of a track structure is increased, the stability of the track structure is ensured, and the action length of the elastic strip 300 is longer than that of the traditional elastic strip 300, so that the elastic strip is longer in the length direction of the steel rail 900, and the longitudinal resistance of a fastener acting on the steel rail 900 is further increased. Compared with the prior art that the steel rail 900 is buckled by the elastic strip 300 by adopting the matching of a single anchoring bolt and a nut or the matching of a single screw spike and an embedded screw pipe, the embodiment of the invention can effectively release the impact force when the impact effect of a train with increased axle weight on a track structure and a fastener is obviously increased, avoid the breakage of the elastic strip 300 or the damage of the fastener, or avoid the crawling problem of the steel rail 900 due to insufficient longitudinal resistance, and ensure the running safety of the train.

According to one embodiment of the present invention, the spring strip 300 further includes a first spring arm 350, a second spring arm 360, and a third spring arm 370, the second spring arm 360 is located between the first spring arm 350 and the third spring arm 370, the first spring arm 350 is connected to the second spring arm 360 through one rear end portion and limits the first mounting channel 310, the second spring arm 360 is connected to the third spring arm 370 through the other rear end portion and limits the second mounting channel 320, the first spring arm 350 is connected to one front end portion, and the third spring arm 370 is connected to the other front end portion.

In this embodiment, the shape of the spring strip 300 is similar to an "m", and the extending directions of the front end and the rear end are both longitudinal, which increases the longitudinal buckling length range of the spring strip 300 to the rail 900. The first spring arm 350 and the third spring arm 370 function to connect the front end portion and the rear end portion. The two front end portions are a first front end portion 331 and a second front end portion 332, the two rear end portions are a first rear end portion 341 and a second rear end portion 342, the left end of the first spring arm 350 is connected to the first front end portion 331, the right end of the first spring arm 350 is connected to the second front end portion 332, the left end of the third spring arm 370 is connected to the second front end portion 332, and the right end of the third spring arm 370 is connected to the second rear end portion 342. The second spring arm 360 separates the first mounting channel 310 from the second mounting channel 320, and the first rear end 341 and the second rear end 342 are joined together at the right end of the second spring arm 360.

After passing through the first mounting channel 310 and the second mounting channel 320, the first screw spike 100 and the second screw spike 200 apply downward pressure to the first spring arm 350, the second spring arm 360 and the third spring arm 370 to press the first spring arm 350, the second spring arm 360 and the third spring arm 370, thereby transmitting the force to make the front end portion act on the rail 900 and the rear end portion act on the gauge block.

According to an embodiment of the present invention, the elastic strip 300 further includes a first middle end 381 and a second middle end 382 disposed on the same side as the front end, the first middle end 381 and the second middle end 382 are symmetrically disposed on both sides of the second elastic arm 360 and are connected to the second elastic arm 360, the first middle end 381 extends toward one front end, and the second middle end 382 extends toward the other front end.

In this embodiment, the first middle end 381 and the second middle end 382 are both disposed at the left end of the second spring arm 360, that is, the end of the second spring arm 360 near the rail 900 is bifurcated to form the first middle end 381 and the second middle end 382, the first front end 331 and the second front end 332 are opposite in extending direction, the first middle end 381 and the second middle end 382 are disposed between the first front end 331 and the second front end 332, and the extending direction of the first middle end 381 and the second middle end 382 are also corresponding to the first front end 331 and the second front end 332. The arrangement of the two front end portions, the first middle end portion 381 and the second middle end portion 382 can further increase the buckling action range of the spring strip 300 on the steel rail 900 along the longitudinal direction, and further increase the pressure of the spring strip 300 on the steel rail 900.

In this embodiment, the first front end 331, the first arm 350 and the first rear end 341 are portions of an integrally bent elastic strip 300, the second front end 332, the third arm 370 and the second rear end 342 are portions of an integrally bent elastic strip 300, the two portions are symmetrically disposed with respect to the second arm 360, and the first middle end 381 and the second middle end 382 are also symmetrically disposed at two sides of the second arm 360 in a bifurcated manner. Thereby ensuring that all three spring arms can apply force to the steel rail 900.

As shown in fig. 4, according to one embodiment of the present invention, the rail fastener further includes a gauge block 500, wherein the gauge block 500 is sandwiched between the rail 900 and the gauge plate 400, the upper surface of the gauge block 500 is provided with a groove 510, and the first middle end 381 and the second middle end 382 are respectively embedded in the groove 510. In this embodiment, the gage blocks 500 abut the side edges of the rail 900 on one side and the gage blocks 400 on the other side, i.e., the gage blocks 500 cooperate with the gage blocks 400 to limit the lateral position of the rail 900 on the sleeper 800. The upper surface of the gage block 500 is provided with grooves 510, the first intermediate end 381 being integrally embedded with the second intermediate end 382 within the grooves 510, i.e., the grooves 510 limit the longitudinal position of the first intermediate end 381 and the second intermediate end 382.

In this embodiment, the first front end 331 and the second front end 332 also fall on the gauge block 500, the groove 510 is located in the middle position of the upper surface of the gauge block 500, and the first front end 331 and the second front end 332 fall on the front and rear sides of the groove 510, that is, the elastic strip 300 is pressed on the upper surface of the gauge block 500, so that pressure is applied to the rail 900 through the gauge block 500, the groove 510 defines the middle end position, so as to avoid the movement displacement of the elastic strip 300 in the longitudinal direction and the transverse direction of the surface of the gauge block 500, and better fix the elastic strip 300 on the gauge block 500, so as to ensure the increase of the longitudinal resistance of the rail 900, realize the positioning of the installation of the elastic strip 300, improve the positioning accuracy during the installation, and better increase the longitudinal resistance and stability.

In this embodiment, the lower surface of the gauge block 500 is provided with a bayonet 530 at a side close to the rail 900, and the side edge of the rail 900 is snapped into the bayonet 530, whereby the upper gauge block 500 portion of the bayonet 530 can ride on the side edge upper surface of the rail 900 to buckle the rail 900.

According to one embodiment of the present invention, the gauge block 500 is provided with two protrusions on one side abutting against the gauge plate 400, and the vertical distance between the two protrusions is the length of the gauge plate 400 along the extending direction of the rail 900. In this embodiment, two protrusions are sequentially disposed on the gauge block 500 along the longitudinal direction, in the process of abutting against the gauge baffle 400, the gauge baffle 400 is embedded between the two protrusions, and the distance between the two protrusions matches with the longitudinal length of the gauge baffle 400, so that the longitudinal positioning of the gauge baffle 400 on the sleeper 800 is achieved through the two protrusions.

In this embodiment, the two protrusions are a first protrusion 521 and a second protrusion 522, the first protrusion 521 and the second protrusion 522 clamp the gauge plate 400 in the longitudinal direction, and the side surface of the gauge block 500 between the first protrusion 521 and the second protrusion 522 is tightly attached to the gauge plate 400, so that the limit of the gauge plate 400 on the sleeper 800 in the transverse direction and the longitudinal direction is realized.

As shown in fig. 5, according to an embodiment of the present invention, the rail fastening further includes a rail pad 600, and the rail pad 600 is provided with a first protrusion 610, and the first protrusion 610 is configured to be inserted into the limit groove 840 of the sleeper 800. In this embodiment, the rail pad 600 is located between the upper surface of the sleeper 800 and the lower surface of the rail 900, the lower surface of the rail pad 600 is provided with the first protrusion 610, the upper surface of the sleeper 800 is provided with the limit groove 840, the limit groove 840 corresponds to the first protrusion 610, and when the rail pad 600 is placed on the sleeper 800, the first protrusion 610 is embedded into the limit groove 840.

In this embodiment, the first protrusion 610 is located at the middle position of the lower surface of the rail pad 600, the limit groove 840 is also located at the middle position of the sleeper 800, and the limit groove 840 is spaced from the front, rear, left and right edges of the sleeper 800, and after the first protrusion 610 is embedded into the limit groove 840, the rail pad 600 can be fixed at the transverse and longitudinal positions on the sleeper 800.

According to an embodiment of the present invention, the rail pad 600 is further provided with two second protrusions 620, wherein the two second protrusions 620 are respectively disposed at two sides of the first protrusion 610, and a vertical distance between the two second protrusions 620 is a length of the sleeper 800 along the extending direction of the rail 900. In this embodiment, two second protrusions 620 are further disposed on the lower surface of the rail pad 600, the two second protrusions 620 are respectively extending from two edges of the rail pad 600 in the longitudinal direction, the distance between the two second protrusions 620 is matched with the longitudinal length of the sleeper 800, when the rail pad 600 is placed on the sleeper 800, the first protrusions 610 are embedded into the limiting grooves 840, the two second protrusions 620 clamp the sleeper 800 to completely position the fastener on the sleeper 800, and due to the interaction between the fastener and the sleeper 800, the overall longitudinal resistance of the fastener is further increased, and meanwhile, the installation accuracy and stability of the fastener are improved.

According to one embodiment of the present invention, the gauge baffle 400 includes a bottom plate 430, a first side plate 440, a second side plate 450 and two reinforcing ribs, wherein the first side plate 440, the second side plate 450 and the two reinforcing ribs are disposed on the upper surface of the bottom plate 430, the first side plate 440 is opposite to the second side plate 450, the first side plate 440 is abutted to the gauge block 500, the second side plate 450 is abutted to the sleeper 800, the two reinforcing ribs are disposed between the first side plate 440 and the second side plate 450, the first mounting hole 410 and the second mounting hole 420 are both disposed on the bottom plate 430 and between the two reinforcing ribs, the two reinforcing ribs are respectively configured with recesses near the end portions of the second side plate 450, and the two rear end portions are respectively pressed into the two recesses.

In this embodiment, the first side plate 440 of the gauge baffle 400 is located at the left side of the bottom plate 430, the second side plate 450 is located at the right side of the bottom plate 430, and the two reinforcing ribs are a first reinforcing rib 461 and a second reinforcing rib 462, and the first reinforcing rib 461 and the second reinforcing rib 462 are sequentially arranged on the bottom plate 430 along the longitudinal direction. The upper surface of the reinforcing rib is an inclined surface, gradually slopes down from the first side plate 440 to the second side plate 450, and forms a first depression 463 and a second depression 464 near the end of the second side plate 450, the depressions are matched with the side surface of the second side plate 450, the first rear end 341 of the elastic strip 300 is embedded into the first depression 463, and the second rear end 342 is embedded into the second depression 464, thereby providing limit fixation for the rear end of the elastic strip 300 through the depressions, and improving the installation stability of the elastic strip 300.

In this embodiment, the first side plate 440 is provided with an opening 441 from top to bottom, and the second spring arm 360 can extend from the opening 441 to reach the gauge block 500, so that the first middle end 381 and the second middle end 382 are pressed against the gauge block 500, and the installation and fixation between the gauge block 500 and the gauge baffle 400 are realized.

As shown in fig. 7, according to an embodiment of the present invention, the rail fastener further includes a cover 700, the cover 700 is provided with a first through hole 710 and a second through hole 720, the first screw spike 100 is inserted through the first through hole 710 into the first mounting channel 310, and the second screw spike 200 is inserted through the second through hole 720 into the second mounting channel 320.

In this embodiment, the cover 700 connects the two screw spikes of the first screw spike 100 and the second screw spike 200 into a whole, and the two screw spikes apply pressure to the elastic strip 300 integrally through the cover 700, so as to ensure the pressure balance of the screw spike to the elastic strip 300. The cover plate 700 is a steel plate with a through hole in the middle to pass through two screw spikes and simultaneously buckle the elastic strip 300.

As shown in fig. 1,2 and 8, the embodiment of the present invention further provides a railway rail fastening system, which includes a sleeper 800 and the rail fastening in the above embodiment, wherein the sleeper 800 is provided with a mounting groove 810, a first pre-buried coil 820 and a second pre-buried coil 830 are provided in the sleeper 800, the rail fastening is provided in the mounting groove 810, a limit groove 840 is provided at the bottom of the mounting groove 810, the first screw spike 100 is screwed into the first pre-buried coil 820, and the second screw spike 200 is screwed into the second pre-buried coil 830.

The railway rail fastening system of the embodiment of the invention provides a special fastening system for heavy haul railway, wherein a first embedded screw 820 and a second embedded screw 830 are arranged in a sleeper 800, a first screw spike 100 and a second screw spike 200 are respectively matched with the first embedded screw 820 and the second embedded screw 830, the upper surface of the sleeper 800 downwards forms a mounting groove 810, two sleeper shoulders 850 are arranged at two sides of the mounting groove 810 in the transverse direction, a second side plate 450 of a gauge baffle 400 in the rail fastening is abutted on the sleeper shoulders 850, a limit groove 840 is arranged in the middle of the mounting groove 810 and is suitable for being matched with a first bulge 610 of a rail lower base plate 600, and the embedded screw is arranged between the limit groove 840 and the sleeper shoulders 850.

In this embodiment, the steel rail 900 is longitudinally disposed in the mounting groove 810, and the two lateral sides of the steel rail are symmetrically provided with fasteners, so as to ensure that the fasteners are balanced and stable to the buckling of the steel rail 900. The installation mode of the screw spike and the embedded screw tube is relatively simple compared with the conventional fastener, the screw spike and the embedded screw tube are convenient to screw, and the screw spike and the embedded screw tube are convenient to maintain.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A rail fastener, characterized in that: including first screw spike, second screw spike, bullet strip and track gauge baffle, the bullet strip encloses and establishes first installation passageway and second installation passageway, the track gauge baffle is equipped with first mounting hole and second mounting hole, first screw spike wears to locate in proper order first installation passageway with first mounting hole to be connected with the sleeper, second screw spike wears to locate in proper order second installation passageway with the second mounting hole, and with the sleeper is connected, the bullet strip includes two tip and two rear ends, two the tip is used for pressing in the side of rail, two rear end pressure in the track gauge baffle.

2. A rail fastener according to claim 1, wherein: the elastic strip further comprises a first elastic arm, a second elastic arm and a third elastic arm, wherein the second elastic arm is located between the first elastic arm and the third elastic arm, the first elastic arm is connected with the second elastic arm through a rear end portion and limits the first installation channel, the second elastic arm is connected with the third elastic arm through another rear end portion and limits the second installation channel, the first elastic arm is connected with one front end portion, and the third elastic arm is connected with another front end portion.

3. A rail fastener according to claim 2, wherein: the elastic strip further comprises a first middle end part and a second middle end part, wherein the first middle end part and the second middle end part are arranged on the same side of the front end part, the first middle end part and the second middle end part are symmetrically arranged on two sides of the second elastic arm and are connected with the second elastic arm, the first middle end part extends towards one front end part, and the second middle end part extends towards the other front end part.

4. A rail fastener according to claim 3, wherein: the novel steel rail gauge comprises a steel rail, and is characterized by further comprising a gauge block, wherein the gauge block is clamped between the steel rail and the gauge baffle, a groove is formed in the upper surface of the gauge block, and the first middle end part and the second middle end part are embedded into the groove.

5. A rail fastener as claimed in claim 4 wherein: the gauge block is provided with two convex parts on one side which is abutted with the gauge baffle plate, and the vertical distance between the two convex parts is the length of the gauge baffle plate along the extending direction of the steel rail.

6. A rail fastener according to claim 1, wherein: the rail sleeper is characterized by further comprising a rail lower base plate, wherein the rail lower base plate is provided with a first bulge, and the first bulge is used for being embedded into a limit groove of the sleeper.

7. A rail fastener as claimed in claim 6 wherein: the rail lower backing plate is also provided with two second bulges, the two second bulges are respectively arranged on two sides of the first bulge, and the vertical distance between the two second bulges is the length of the sleeper along the extending direction of the steel rail.

8. A rail fastener as claimed in claim 4 wherein: the track gauge baffle comprises a bottom plate, a first side plate, a second side plate and two reinforcing ribs, wherein the first side plate, the second side plate and the two reinforcing ribs are arranged on the upper surface of the bottom plate, the first side plate and the second side plate are oppositely arranged, the first side plate is in butt joint with the track gauge block, the second side plate is used for being in butt joint with the sleeper, the two reinforcing ribs are arranged between the first side plate and the second side plate, the first mounting holes and the second mounting holes are formed in the bottom plate and are positioned between the two reinforcing ribs, the two reinforcing ribs are close to the end parts of the second side plate and respectively form a dent, and the two rear end parts are respectively pressed in the two dents.

9. A rail fastener according to any one of claims 1 to 8, wherein: the novel screw spike comprises a first mounting channel, and is characterized by further comprising a cover plate, wherein the cover plate is provided with a first through hole and a second through hole, the first screw spike penetrates through the first through hole to enter the first mounting channel, and the second screw spike penetrates through the second through hole to enter the second mounting channel.

10. A railway rail fastener system, characterized by: the rail fastener comprises a sleeper and the rail fastener according to any one of claims 1 to 9, wherein the sleeper is provided with a mounting groove, a first embedded screw pipe and a second embedded screw pipe are arranged in the sleeper, the rail fastener is arranged in the mounting groove, a limit groove is formed in the bottom of the mounting groove, the first screw spike is screwed into the first embedded screw pipe, and the second screw spike is screwed into the second embedded screw pipe.