CN214831541U - Rail fastener and sleeper system - Google Patents

Abstract

The utility model relates to a fixed technical field of rail especially relates to a rail fastener and sleeper system. The base plate is provided with two mounting seats which are transversely distributed at intervals, through holes are formed in the mounting seats, and the through holes vertically penetrate through the mounting seats and the base plate; the two elastic strips are respectively positioned on the top sides of the two mounting seats; the two fixing bolts are respectively arranged in the two through holes in a penetrating way, and the top sides of the elastic strips are pressed against the bottom sides of the heads of the fixing bolts; the two gauge blocks are arranged at intervals and are positioned between the two mounting seats, the top sides of the gauge blocks are provided with upwards extending convex blocks, and the bottom sides of the two elastic strips are respectively pressed against the top sides of the two convex blocks so as to reduce the deformation amount of the elastic strips; the composite backing plate is positioned between the backing plate and the steel rail and comprises a resistance reducing layer and an elastic layer, and the elastic layer is positioned between the backing plate and the resistance reducing layer. An object of the utility model is to provide a reduce rail fastener of rail resistance.

Description

Rail fastener and sleeper system

Technical Field

The utility model relates to a fixed technical field of rail especially relates to a rail fastener and sleeper system.

Background

For some overhead lines, it is necessary to reduce the longitudinal resistance (longitudinal direction, i.e. the laying direction of the rails) of the rails, so as to reduce the interaction force between the rails and the bridge. But the traditional steel rail fastener has large pressure applied to the steel rail, is difficult to reduce the resistance of the steel rail and can not meet the use requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce rail fastener and sleeper system of rail resistance.

The rail clip includes: the base plate is provided with two mounting seats which are transversely distributed at intervals, through holes are formed in the mounting seats, and the through holes vertically penetrate through the mounting seats and the base plate; the two elastic strips are respectively positioned on the top sides of the two mounting seats; the two fixing bolts are respectively arranged in the two through holes in a penetrating manner, and the top sides of the elastic strips are pressed against the bottom sides of the heads of the fixing bolts; the two gauge blocks are arranged at intervals and are positioned between the two mounting seats, the top sides of the gauge blocks are provided with convex blocks extending upwards, and the bottom sides of the two elastic strips are respectively pressed against the top sides of the two convex blocks so as to reduce the deformation amount of the elastic strips; the composite base plate is positioned between the base plate and the steel rail and comprises a resistance reducing layer and an elastic layer, and the elastic layer is positioned between the base plate and the resistance reducing layer.

Optionally, the bottom side of the head of the fixing bolt is provided with a plurality of pairs of limiting grooves, and the top sides of the two middle toes of the elastic strip are pressed against any pair of limiting grooves.

Optionally, the inner wall of the limiting groove has a frosted surface.

Optionally, the elastic strip has a protrusion, and the bottom side of the protrusion is pressed against the top side of the protrusion.

Alternatively, the shim plate is made of a ferrous material.

Optionally, the resistance reducing layer is detachably connected with the elastic layer, and the elastic layer is detachably connected with the base plate.

The tie system comprises a tie body and the rail clip of any of the embodiments described above; the top side of the sleeper body is provided with two stop blocks which are distributed at intervals transversely, and the steel rail fastener is positioned between the two stop blocks.

Optionally, two sides of the base plate are provided with obliquely arranged side faces, and in the direction from the bottom end of the base plate to the top end of the base plate, the side faces extend obliquely upwards towards the direction far away from the steel rail; the side surfaces of the stop blocks facing the rail fastener are obliquely arranged, and two side surfaces of the backing plate are respectively attached to the side surfaces of the two stop blocks.

The embodiment of the utility model provides a technical scheme compares with prior art and has following advantage:

compared with the mode that the elastic strip is directly pressed on the top side of the gauge block, when the elastic strip is pressed on the top side of the convex block, the deformation amount of the elastic strip is smaller, so that the pressure applied to the gauge block by the elastic strip is reduced, the pressure of the gauge block on the steel rail is reduced, and the resistance of the steel rail is reduced; and the friction between the steel rail and the composite base plate can be reduced by the drag reduction layer, so that the resistance of the steel rail is further reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of a rail fastener according to an embodiment of the present invention;

fig. 2 is a schematic view of a rail fastener according to an embodiment of the present invention;

fig. 3 is a schematic view of a bump according to an embodiment of the present invention;

fig. 4 is a schematic view of a composite backing plate according to an embodiment of the present invention;

fig. 5 is a schematic view of a limiting groove according to an embodiment of the present invention;

fig. 6 is a schematic view of an elastic strip according to an embodiment of the present invention.

Wherein, 1, a backing plate; 2. a mounting seat; 3. a spring bar; 4. fixing the bolt; 5. a gauge block; 6. a bump; 7. compounding a base plate; 8. a resistance reducing layer; 9. an elastic layer; 10. a head portion; 11. a limiting groove; 12. a rod portion; 13. a middle toe; 14. a sleeper body; 15. a stopper; 16. a steel rail; 17. a side surface; 18. a side surface; 19. and (6) embedding the sleeve.

Detailed Description

In order that the above objects, features and advantages of the present invention may be more clearly understood, the aspects of the present invention will be further described below. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the invention may be practiced in other ways than those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in fig. 1 to 6, the present invention provides a rail fastener, which comprises a backing plate 1, two elastic strips 3, two fixing bolts 4, two gauge blocks 5 and a composite backing plate 7. Be equipped with two horizontal interval distribution's mount pad 2 on the backing plate 1, be equipped with the through-hole in the mount pad 2, the through-hole is vertical to run through mount pad 2 and backing plate 1. Two elastic strips 3 are respectively positioned on the top sides of the two mounting seats 2. Two fixing bolts 4 are respectively penetrated in the two through holes, and the top side of the elastic strip 3 is pressed against the bottom side of the head 10 of the fixing bolt 4. Two gauge blocks 5 are arranged at intervals and located between the two mounting seats 2, the top sides of the gauge blocks 5 are provided with convex blocks 6 extending upwards, and the bottom sides of the two elastic strips 3 are respectively pressed against the top sides of the two convex blocks 6, so that the deformation amount of the elastic strips 3 is reduced. The composite tie plate 7 is positioned between the tie plate 1 and the steel rail 16, the composite tie plate 7 comprises a resistance reducing layer 8 and an elastic layer 9, and the elastic layer 9 is positioned between the tie plate 1 and the resistance reducing layer 8.

Compared with the situation that the elastic strip 3 is directly pressed on the top side of the gauge block 5, when the elastic strip 3 is pressed on the top side of the lug 6, the deformation amount of the elastic strip 3 is smaller, so that the pressure applied to the gauge block 5 by the elastic strip 3 is reduced, the pressure of the gauge block 5 on the steel rail 16 is reduced, and the resistance of the steel rail 16 is reduced. In addition, the friction between the steel rail 16 and the composite backing plate 7 can be reduced by the resistance reducing layer 8 of the composite backing plate 7, so that the resistance of the steel rail 16 is further reduced. Therefore, the longitudinal resistance of the steel rail 16 is reduced through the matching of the composite base plate 7 and the gauge block 5, and the safety and stability of the railway line are ensured.

Of course, backing plate 1, bullet strip 3, gauge block 5 and fixing bolt 4 all can be for the common part in this field, the utility model discloses no longer describe to its structure.

Further, the bottom side of the head 10 of the fixing bolt 4 is provided with a plurality of pairs of limiting grooves 11, and the top sides of the two middle toes 13 of the elastic strip 3 are pressed against any one pair of limiting grooves 11.

As will be understood by those skilled in the art, the fixing bolt 4 includes a head 10 and a shank 12, the shank 12 is inserted into the through hole, and the middle toe 13 of the elastic strip 3 (i.e., the middle two segments of the elastic strip 3) is pressed against the bottom side of the head 10. In this embodiment, the limiting groove 11 may have various forms, such as a rectangular parallelepiped groove, a groove with an arc-shaped inner wall, or a cylindrical groove, and the present invention is not limited thereto. Preferably, the inner wall of the limiting groove 11 is in a shape capable of fitting on the top side of the middle toe 13, and two limiting grooves 11 of each pair are symmetrically distributed on two sides of the rod body.

When the fixing bolt 4 is tightened to a designed torque (or to a preset position), the top side of the middle toe 13 is pressed against the stopper groove 11 (i.e., the top side of the arched portion of the middle toe 13 is pressed against the stopper groove 11), and the middle toe 13 cannot be removed from the stopper groove 11 without an external force. Therefore, when the steel rail fastener is vibrated under the action of the steel rail 16, the limiting groove 11 can play a role in lasting anti-loosening, the anti-loosening capacity of the fixing bolt 4 is improved, on one hand, the elastic strip 3 can keep enough pressing force on the steel rail 16, and on the other hand, the later maintenance and repair work is reduced.

Further, the inner wall of the limiting groove 11 has a frosted surface. The frosted surface can increase the friction between the head 10 of the fixing bolt 4 and the elastic strip 3, and the loosening effect of the fixing bolt 4 is improved.

Further, the spring bar 3 has a projection, the bottom side of which is pressed against the top side of the projection 6. The protruding part is pressed on the top side of the convex block 6, so that the deformation of the elastic strip 3 is reduced, the pressure of the elastic strip 3 on the steel rail 16 is reduced, the resistance of the steel rail fastener on the steel rail 16 is reduced, and the small resistance is realized.

The protruding portion may have various forms, for example, the protruding portion may be a block-shaped portion extending from the elastic strip 3, or may be a portion of the elastic strip 3 with an increased diameter (i.e., a thickened portion). Any form of protrusion is within the contemplated scope of the present invention as long as the protrusion can reduce the amount of deformation of the spring strip 3 itself.

Further, the pad 1 is made of a ferrous material. The mat 1 may be exposed for a long time and easily aged by the influence of ultraviolet rays and high temperature. The cushion plate 1 made of the iron material can resist strong ultraviolet irradiation and high-temperature radiation for a long time, and the service life and the stability of the steel rail fastener are ensured.

Furthermore, the resistance reducing layer 8 is detachably connected with the elastic layer 9, and the elastic layer 9 is detachably connected with the cushion plate 1.

In some embodiments, the resistance reducing layer 8 may be made of a high molecular weight wear resistant material, such as ultra high molecular weight polyethylene, polyoxymethylene, or the like; the elastic layer 9 may be made of an elastic material such as a thermoplastic polyester elastomer (TPEE) material or a rubber material. In other embodiments, the resistance reducing layer 8 may be made of a stainless steel plate, and the elastic layer 9 may be made of an elastic material such as a rubber material. Of course, the resistance reducing layer 8 and the elastic layer 9 are not limited to the above materials.

There may be various forms of connection between the resistance reducing layer 8 and the elastic layer 9. For example, the bottom side of the resistance reducing layer 8 is provided with a plurality of protrusions, the top side of the elastic layer 9 is provided with a plurality of grooves, the plurality of protrusions are correspondingly inserted into the plurality of grooves, and the protrusions and the grooves are in interference fit. For another example, the bottom side of the drag reduction layer 8 is provided with a plurality of grooves, the top of each groove is provided with a hanging rod crossing the opening of the groove, and the hanging rod and the drag reduction layer 8 are integrally formed; the top side of elastic layer 9 is equipped with the couple of a plurality of C shapes, and a plurality of couples correspond be located a plurality of recesses to the couple colludes and links on the peg, in order to realize elastic layer 9 and drag reduction layer 8 be connected.

The elastic layer 9 and the backing plate 1 can be connected in various detachable modes so as to facilitate the disassembly and assembly of the composite backing plate. For example, the elastic layer 9 may be provided in a U-shape with both downwardly projecting side edges of the elastic layer 9 sandwiched on both longitudinal sides of the pallet 1 to achieve detachable attachment of the elastic layer 9. For another example, the top of the cushion plate 1 is provided with a plurality of limiting posts, the bottom side of the elastic layer 9 is provided with a plurality of limiting holes, and the plurality of limiting posts are correspondingly inserted into the plurality of limiting holes respectively, so as to realize the detachable connection of the elastic layer 9. For another example, both ends of the elastic layer 9 have a pair of extensions spaced apart (spaced apart in the longitudinal direction), and the two extensions are clamped to both sides (in the longitudinal direction) of the mounting base 2, that is, each mounting base 2 is located between the two extensions, so as to achieve the detachable connection of the elastic layer 9.

Further, elastic layer 9 is the wave to elastic layer 9's top is equipped with the mounting groove, subtracts resistive layer 8 and installs in the mounting groove. Specifically, the wave crests of the elastic layer 9 are connected with the resistance reducing layer 8, and cavities are formed between the wave troughs of the elastic layer 9 and the resistance reducing layer 8. The wavy elastic layer 9 has better elasticity, so the elastic layer 9 has stronger elasticity and better shock absorption performance.

Additionally, the utility model discloses a rail fastener is still including can heightening parts such as cushion, heightening backing plate, but the utility model discloses do not relate to the improvement to these parts, consequently the utility model discloses it is not being repeated repeatedly to above-mentioned part.

The utility model also provides a sleeper system, its rail fastener that includes sleeper body 14 and any one of the above-mentioned embodiments. The top side of the sleeper body 14 is provided with two laterally spaced apart stops 15, and the rail clip is located between the two stops 15. In addition, the sleeper body 14 is also provided with an embedded sleeve 19, and the rod part 12 of the fixing bolt 4 is in threaded connection with the embedded sleeve 19.

Further, both sides of the tie plate 1 have obliquely arranged side surfaces 17, and the side surfaces 17 extend obliquely upward in a direction from the bottom end of the tie plate 1 to the top end of the tie plate 1, away from the steel rail 16. The side surfaces 18 of the stops 15 facing the rail clip are arranged obliquely, and the two side surfaces 17 of the support plate 1 abut against the side surfaces 18 of the two stops 15. Preferably, the height of the stopper 15 is equal to or greater than the thickness of the tie plate 1.

The side of traditional backing plate is vertical extension's surface, but the surface that the side surface of traditional dog is the outside slope extension, so there is certain clearance between traditional backing plate and the traditional dog, leads to the side of traditional backing plate to paste completely and lean on the side surface at traditional dog, so lead to traditional track fastener can't better transverse load transfer to sleeper and railway roadbed. In this embodiment, the stopper 15 has a side surface 18 inclined toward the rail clip, that is, the distance between the two side surfaces 18 gradually increases from bottom to top, and an inverted-truncated-pyramid-shaped gap exists between the two stoppers 15. Correspondingly, the underlay sheet 1 has side surfaces 17 inclined towards the outside, i.e. the distance between the two side surfaces 17 increases gradually from bottom to top, and the outline of the underlay sheet 1 is overall in the shape of a truncated pyramid. So backing plate 1 can "wedge" in the breach between two dog 15 to based on the dead weight of rail fastener, laminating that two sides 17 of backing plate 1 can be fine is on the side surface 18 of dog 15, and rail fastener is inseparabler with the combination of dog 15, thereby better transmits cross load to sleeper and railway roadbed, and the lateral displacement of restriction rail fastener guarantees driving safety.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A rail fastener, comprising:

the base plate comprises a base plate (1), wherein two installation bases (2) which are transversely distributed at intervals are arranged on the base plate (1), through holes are formed in the installation bases (2), and the through holes vertically penetrate through the installation bases (2) and the base plate (1);

the two elastic strips (3) are respectively positioned on the top sides of the two mounting seats (2);

the two fixing bolts (4) are respectively arranged in the two through holes in a penetrating manner, and the top side of the elastic strip (3) is pressed against the bottom side of the head (10) of the fixing bolt (4);

the two gauge blocks (5) are arranged at intervals and are positioned between the two mounting seats (2), the top sides of the gauge blocks (5) are provided with convex blocks (6) extending upwards, and the bottom sides of the two elastic strips (3) are respectively pressed against the top sides of the convex blocks (6) so that the deformation of the elastic strips (3) is reduced;

composite backing plate (7), composite backing plate (7) are located between backing plate (1) and rail (16), composite backing plate (7) are including subtracting resistance layer (8) and elastic layer (9), elastic layer (9) are located backing plate (1) with subtract between resistance layer (8).

2. A rail fastener according to claim 1, characterized in that the head (10) of the fixing bolt (4) is provided at its underside with a plurality of pairs of retaining grooves (11), the top sides of the two middle toes (13) of the spring strip (3) being pressed into any one of said pairs of retaining grooves (11).

3. A rail fastener according to claim 2, wherein the inner wall of the retaining groove (11) has a frosted surface.

4. A rail fastener according to claim 1, characterized in that the spring strip (3) has a projection, the underside of which is pressed against the top side of the projection (6).

5. A rail fastener according to claim 1, characterized in that said pad (1) is made of a ferrous material.

6. A rail fastener according to claim 1, in which said drag reducing layer (8) is removably attached to said resilient layer (9), said resilient layer (9) being removably attached to said backing plate (1).

7. A sleeper system, characterized by comprising a sleeper body (14) and a rail fastening according to any one of claims 1 to 6; two stop blocks (15) which are distributed at intervals transversely are arranged on the top side of the sleeper body (14), and the steel rail fastener is positioned between the two stop blocks (15).

8. Sleeper system according to claim 7, characterized in that the tie plate (1) has obliquely arranged side faces (17) on both sides, which side faces (17) extend obliquely upwards away from the rail (16) in the direction from the bottom end of the tie plate (1) to the top end of the tie plate (1);

the side surfaces (18) of the stop blocks (15) facing the rail clip are arranged obliquely, and the two side surfaces (17) of the tie plate (1) are respectively attached to the side surfaces (18) of the two stop blocks (15).

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