Double-layer railway track damping fastener

Abstract

The utility model belongs to the technical field of rail traffic, and particularly relates to a double-layer railway track damping fastener which comprises a sleeper arranged at the bottom, a height adjusting base plate, a rubber base plate, a baffle assembly, a limiting assembly, an elastic strip arranged on the baffle assembly and a fastening assembly. A U-shaped mounting groove inclining towards the outer side is formed in the upper end face of the sleeper, two first threaded limiting holes arranged in a central symmetry mode are further formed in the bottom of the mounting groove, and the first threaded limiting holes are suitable for mounting the limiting assemblies. The limiting assembly comprises a limiting piece, a second threaded limiting hole formed in the limiting piece and a bolt fixed in the second threaded limiting hole. According to the double-layer railway track vibration reduction fastener, the limiting assemblies are arranged to abut against the baffle assemblies, the height adjusting base plates and the rubber base plates, so that the baffles and the base plates are prevented from shifting when vibrated by external force, and the stability of the vibration reduction fastener is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a double-layer railway track vibration reduction fastener. Background Art

[0002] Railway track fasteners are connecting components between rails and sleepers. While they fix the rails, they also have a certain vibration reduction function.

[0003] At present, vibration-damping fasteners are commonly used to pave noise-reducing sections in railway track transportation. However, in the long-term use of existing double-layer railway track vibration-damping fasteners, the double-layer pads are affected by the vibration generated by the running trains, which can cause the double-layer pads to shift, and then cause the bottom of the vibration-damping fasteners to become unbalanced and loose, which can easily cause safety hazards. Utility Model Content

[0004] In view of this, the utility model provides a double-layer railway track vibration-damping fastener, which prevents the baffle and the pad from shifting when subjected to external vibration by arranging a limit assembly to abut against the baffle assembly and the height adjustment pad and the rubber pad, thereby ensuring the stability of the vibration-damping fastener.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a double-layer railway track vibration-damping fastener is provided, including a sleeper arranged at the bottom, a height adjustment pad installed on the sleeper, a rubber pad, a baffle assembly, a limit assembly, a spring bar arranged on the baffle assembly and a fastening assembly, the upper end surface of the sleeper is provided with a U-shaped installation groove inclined outward, and two first threaded limit holes arranged symmetrically with the center are also provided at the bottom of the installation groove, the first threaded limit hole is suitable for installing the limit assembly, and the limit assembly includes a limit piece, a second threaded limit hole opened on the limit piece, and a bolt fixed in the second threaded limit hole.

[0006] Furthermore, two groups of the limiting components are provided, and the two groups of the limiting components are centrally symmetrically arranged.

[0007] Furthermore, one side of the limiting assembly abuts against one side of the baffle assembly, and the other side of the limiting assembly abuts against one side of the height-adjusting pad and the rubber pad.

[0008] Furthermore, the bolt is fixed through the second threaded limiting hole on the limiting member and the first threaded limiting hole on the sleeper.

[0009] Furthermore, a mounting hole is provided on the sleeper, and the mounting hole is cylindrical. There are two mounting holes, which are respectively provided at the bottom of the mounting groove, and the two mounting holes are symmetrically arranged. Sleeves are pre-buried in the two mounting holes, and threads are arranged inside the sleeves.

[0010] Furthermore, two symmetrical first matching notches are respectively formed on two side edges in the width direction of the height-adjusting pad.

[0011] Furthermore, two symmetrical second matching notches are respectively formed on two side edges in the width direction of the rubber pad.

[0012] Furthermore, the baffle assembly includes a first mounting baffle and a second mounting baffle symmetrically arranged, and the first mounting baffle includes a first supporting portion arranged on one side edge, a first supporting portion arranged on a side edge away from the first supporting portion, a first supporting groove arranged on one side of the first supporting portion, and a first fixing hole opened on the first mounting plate.

[0013] Furthermore, two elastic bars are provided, and the elastic bars are substantially W-shaped, and the bottom ends of the two elastic bars are respectively engaged in the first abutting groove and the second abutting groove.

[0014] Furthermore, the fastening assembly is provided in two groups, and the fastening assembly includes a spiral spike and a washer sleeved on the spiral spike, and the washer is cushioned between the spiral spike and the elastic bar.

[0015] The beneficial effects of the utility model are as follows: the double-layer railway track vibration-damping fastener of the utility model comprises a sleeper arranged at the bottom, a height-adjusting pad installed on the sleeper, a rubber pad, a baffle assembly, a limiting assembly, a spring bar arranged on the baffle assembly, and a fastening assembly, the upper end surface of the sleeper is provided with a U-shaped mounting groove inclined outward, and two first threaded limiting holes arranged symmetrically with respect to the center are also provided at the bottom of the mounting groove, the first threaded limiting holes are suitable for installing the limiting assembly, the limiting assembly comprises a limiting member, a second threaded limiting hole provided on the limiting member, and a bolt fixed in the second threaded limiting hole. The double-layer railway track vibration-damping fastener of the utility model is supported on the baffle assembly, the height-adjusting pad and the rubber pad by providing a limiting assembly, and the abutting portion of the baffle assembly is engaged with the matching notches of the height-adjusting pad and the rubber pad, thereby avoiding displacement of the baffle and the pad when subjected to external force vibration, and ensuring the stability of the vibration-damping fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1It is a structural schematic diagram of a double-layer railway track vibration-damping fastener of the utility model;

[0018] Figure 2 It is a top view of the double-layer railway track vibration-damping fastener of the utility model;

[0019] Figure 3 yes Figure 2 A cross-sectional view along the middle line A-A';

[0020] Figure 4 It is an exploded view of the double-layer railway track vibration-damping fastener of the utility model.

[0021] The names and numbers of the parts in the figure are:

[0022] Double-layer railway track vibration reduction fastener 100;

[0023] Sleeper 1, mounting groove 11, mounting hole 12, sleeve 13, first threaded limiting hole 14;

[0024] Heightening pad 2, first matching notch 21;

[0025] Rubber pad 3, second matching notch 31;

[0026] Baffle assembly 4, first mounting baffle 41, first abutting portion 411, first abutting portion 412, first abutting groove 413, first fixing hole 414, second mounting baffle 42, second abutting portion 421, second abutting portion 422, second abutting groove 423, second fixing hole 424;

[0027] Limiting assembly 5, limiting member 51, second threaded limiting hole 52, bolt 53;

[0028] Spring bar 6;

[0029] Fastening assembly 7, spiral spike 71, washer 72;

[0030] Rail 8. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the composition related to the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] like Figure 1-3As shown, this embodiment provides a double-layer railway track vibration-damping fastener 100, including a sleeper 1 arranged at the bottom, a height adjustment pad 2 installed on the sleeper 1, a rubber pad 3, a baffle assembly 4, a limit assembly 5, a spring bar 6 arranged on the baffle assembly 4, and a fastening assembly 7.

[0033] In some embodiments, such as Figure 4 As shown, the sleeper 1 is placed horizontally, the bottom of the sleeper 1 is flat, and the sleeper 1 is roughly rectangular. A U-shaped mounting groove 11 inclined outward is provided on the upper end surface of the sleeper 1, the bottom of the mounting groove 11 is a horizontal plane, and the mounting groove 11 is symmetrical on both sides of the sleeper 1. A mounting hole 12 is also provided on the sleeper 1, and the mounting hole 12 is cylindrical. There are two mounting holes 12, which are respectively provided at the bottom of the mounting groove 11, and the two mounting holes 12 are symmetrically arranged. Sleeves 13 are pre-buried in the two mounting holes 12, respectively, and threads are provided inside the sleeves 13, which are suitable for fastening the assembly 5 for fixing. Two first threaded limit holes 14 arranged symmetrically with the center are also provided at the bottom of the mounting groove 11, and the first threaded limit holes 14 are suitable for installing the limit assembly 4.

[0034] In some of the embodiments, the width of the height adjusting plate 2 matches the width of the mounting groove 11, and two symmetrical first matching slots 21 are respectively opened on the two side edges in the width direction of the height adjusting plate 2. The first matching slots 21 are suitable for matching with one side of the baffle assembly 4, and the height adjusting plate 2 is placed in the central position of the mounting groove 11 of the sleeper 1.

[0035] In some embodiments, the rubber pad 3 is placed above the height-adjusting pad 2. The rubber pad 3 is made of rubber material. Two symmetrical second matching slots 31 are respectively opened on the two side edges in the width direction of the rubber pad 3. The size of the second matching slot 31 is the same as the size of the first matching slot 21. The second matching slot 31 is suitable for matching with one side of the baffle assembly 4. The height-adjusting pad 2 is placed between the mounting groove 11 of the sleeper 1 and the rubber pad 3, and the rubber pad 22 plays a buffering role.

[0036] In some embodiments, the baffle assembly 4 includes a first mounting baffle 41 and a second mounting baffle 42 that are symmetrically arranged. The first mounting baffle 41 includes a first abutting portion 411 arranged on one side, a first abutting portion 412 arranged on one side away from the first abutting portion 411, a first abutting groove 413 arranged on one side of the first abutting portion 411, and a first fixing hole 414 opened at the central position of the first mounting baffle 41. The first abutting portion 411 is an inclined surface, and the inclination angle of the first abutting portion 411 is the same as the inclination angle of the side of the mounting groove 11 of the sleeper 1, so that the first abutting portion 411 abuts against the side of the mounting groove 11. The first abutting portion 412 matches the size of the first matching notch 21 and the second matching notch 31, and the height of the first abutting portion 412 is greater than the height of the first abutting portion 411, and the lower part of the first abutting portion 412 is suitable for abutting against the first matching notch 21 and the second matching notch 31, and the lower part of the first abutting portion 412 abuts against one side of the rail 8. The first abutting groove 413 is provided on one side of the first abutting portion 411, and the first abutting groove 413 is an arc-shaped groove, and the first abutting groove 413 is suitable for abutting the elastic bar 6. The first fixing hole 414 is a circular hole, and the position of the first fixing hole 414 corresponds to the position of a mounting hole 12 on the sleeper 1. The second mounting baffle 42 is symmetrically arranged with the first mounting baffle 441, and the second mounting baffle 42 includes a second abutting portion 421 arranged on one side, a second abutting portion 422 arranged on a side away from the second abutting portion 421, a second abutting groove 423 arranged on one side of the second abutting portion 421, and a second fixing hole 424 provided at the center of the second mounting baffle 42. The second abutting portion 421 is an inclined surface, and the inclination angle of the second abutting portion 421 is the same as the inclination angle of the side of the mounting groove 11 of the sleeper 1, so that the second abutting portion 421 abuts against the side of the mounting groove 11. The second resisting portion 322 matches the size of the first matching notch 21 and the second matching notch 31, and the height of the second resisting portion 422 is greater than the height of the second abutting portion 421. The lower part of the second resisting portion 422 is suitable for abutting the first matching notch 21 and the second matching notch 31, and the lower part of the second resisting portion 422 abuts against the other side of the rail 6. The second abutting groove 423 is provided on one side of the second abutting portion 421, and the second abutting groove 423 is an arc groove, and the second abutting groove 423 is suitable for abutting the elastic bar 6. The second fixing hole 424 is a circular hole, and the position of the second fixing hole 424 corresponds to the position of another mounting hole 12 on the sleeper 1. By providing a first supporting portion 411 on one side of the first mounting baffle 41 and a second supporting portion 421 on one side of the second mounting baffle 42, displacement of the baffle assembly 4 to both sides of the rail 8 is avoided; a first supporting portion 412 is provided on the first mounting baffle 41 and a second supporting portion 422 is provided on the second mounting baffle 42 to engage with the height adjusting pad 2 and the rubber pad 3, thereby avoiding displacement of the height adjusting pad 2 and the rubber pad 3.

[0037] In some embodiments, such as Figure 2 As shown, two groups of limit assemblies 5 are provided, and the two groups of limit assemblies 5 are centrally symmetrically arranged. One side of the limit assemblies 5 abuts against one side of the baffle assembly 5, and the other side of the limit assemblies 5 abuts against one side of the height-adjusting pad 2 and the rubber pad 3. The limit assembly 5 includes a limit member 51, a second threaded limit hole 52 provided on the limit member 51, and a bolt 53 fixed in the second threaded limit hole 52. The limit member 51 is a square plate, one side of one limit member 51 abuts against the first mounting baffle 41, and the other side of the limit member 51 abuts against the height-adjusting pad 2 and the rubber pad 3. One side of the other limit member 51 abuts against the second mounting baffle 42, and the other side of the limit member 51 abuts against the height-adjusting pad 2 and the rubber pad 3. The second threaded limiting hole 51 is formed in the central part of the limiting member 51, and the second threaded limiting hole 51 corresponds to the position of the first threaded limiting hole 14 formed on the sleeper 1. The bolt 53 passes through the second threaded limiting hole 51 on the limiting member 51 and the first threaded limiting hole 14 on the sleeper 1 and is fixed, thereby holding the limiting member 51 against the baffle assembly 5 and the height adjustment pad 2 and the rubber pad 3, thereby preventing the baffle assembly 5 from shifting when subjected to external force vibration, and the matching notches of the abutting portion of the baffle assembly 5 and the height adjustment pad 2 and the rubber pad 3 also prevent the height adjustment pad 2 and the rubber pad 3 from shifting when subjected to external force.

[0038] In some embodiments, two spring bars 6 are provided, and the spring bars 6 are substantially W-shaped, and the bottom ends of the two W-shaped spring bars 6 are respectively engaged in the first abutting groove 413 of the first mounting baffle 41 and the second abutting groove 423 of the second mounting baffle 42. The upper ends of the two W-shaped spring bars 6 are respectively abutted against the rail 8, and the upper ends of the two W-shaped spring bars 6 are also respectively abutted against the first abutting portion 412 on the first mounting baffle 41 and the second abutting portion 422 on the second mounting baffle 42.

[0039] In some embodiments, such as Figure 3 As shown, the fastening assembly 7 is provided with two groups, and the fastening assembly 5 includes a spiral spike 71 and a washer 72 sleeved on the spiral spike 71, and the spiral spike 71 is matched with the thread inside the sleeve 13. The washer 72 is cushioned between the spiral spike 71 and the top of the central part of the W-shaped spring bar 65, thereby preventing the W-shaped spring bar 6 from falling off.

[0040] The double-layer railway track vibration reduction fastener 100 of the utility model comprises a sleeper 1 arranged at the bottom, a height adjustment pad 2 installed on the sleeper 1, a rubber pad 3, a baffle assembly 4, a limit assembly 5, a spring bar 6 arranged on the baffle assembly 4 and a fastening assembly 7. The rubber pad 3 is arranged to play a buffering role; by arranging a first abutting portion 411 on one side of the first mounting baffle 41 and a second abutting portion 421 on one side of the second mounting baffle 42, the baffle assembly 4 is prevented from shifting to both sides of the rail 8; a first abutting portion 412 is arranged on the first mounting baffle 41 and a second abutting portion 422 is arranged on the second mounting baffle 42 to contact the height adjustment pad 2 and the rubber pad 3 are engaged with each other to prevent the height-adjusting pad 2 and the rubber pad 3 from shifting; and the bolt 53 passes through the second threaded limiting hole 51 on the limiting member 51 and the first threaded limiting hole 14 on the sleeper 1, thereby holding the limiting member 51 against the baffle assembly 5 and the height-adjusting pad 2 and the rubber pad 3, thereby preventing the baffle assembly 5 from shifting when subjected to external force vibration, and the abutting portion of the baffle assembly 5 is engaged with the matching notches of the height-adjusting pad 2 and the rubber pad 3, thereby preventing the height-adjusting pad 2 and the rubber pad 3 from shifting when subjected to external force, thereby ensuring the stability of the double-layer railway track vibration-damping fastener 100 and improving the safety performance.

[0041] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A double-layer railway track vibration-damping fastener, characterized in that: It includes a sleeper arranged at the bottom, a height adjustment pad installed on the sleeper, a rubber pad, a baffle assembly, a limit assembly, a spring bar arranged on the baffle assembly and a fastening assembly, the upper end surface of the sleeper is provided with a U-shaped installation groove inclined toward the outside, and two first threaded limit holes arranged symmetrically with the center are also provided at the bottom of the installation groove, the first threaded limit hole is suitable for installing the limit assembly, and the limit assembly includes a limit piece, a second threaded limit hole provided on the limit piece, and a bolt fixed in the second threaded limit hole.

2. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: The position limiting components are provided in two groups, and the two groups of position limiting components are centrally symmetrically arranged.

3. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: One side of the limiting assembly abuts against one side of the baffle assembly, and the other side of the limiting assembly abuts against one side of the height-adjusting pad and the rubber pad.

4. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: The bolt is fixed through the second threaded limiting hole on the limiting member and the first threaded limiting hole on the sleeper.

5. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: The sleeper is also provided with a mounting hole, which is cylindrical. There are two mounting holes, which are respectively provided at the bottom of the mounting groove, and the two mounting holes are symmetrically arranged. Sleeves are pre-buried in the two mounting holes, respectively, and threads are arranged inside the sleeves.

6. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: Two symmetrical first matching notches are respectively formed on two side edges of the height-adjusting pad in the width direction.

7. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: Two symmetrical second matching notches are respectively formed on two side edges in the width direction of the rubber pad.

8. The double-layer railway track vibration-damping fastener according to claim 1, characterized in that: The baffle assembly includes a first mounting baffle and a second mounting baffle symmetrically arranged, the first mounting baffle including a first abutting portion arranged on one side, a first abutting portion arranged on a side away from the first abutting portion, a first abutting groove arranged on one side of the first abutting portion, and a first fixing hole opened on the first mounting baffle, the second mounting baffle includes a second abutting portion arranged on one side, a second abutting portion arranged on a side away from the second abutting portion, a second abutting groove arranged on one side of the second abutting portion, and a second fixing hole opened on the second mounting baffle.

9. The double-layer railway track vibration-damping fastener according to claim 8, characterized in that: The two spring bars are provided, and the spring bars are substantially W-shaped, and the bottom ends of the two spring bars are respectively engaged in the first abutting groove and the second abutting groove.

10. The double-layer railway track vibration-damping fastener according to claim 9, characterized in that: The fastening assembly is provided in two groups, and the fastening assembly comprises a spiral spike and a washer sleeved on the spiral spike, and the washer is cushioned between the spiral spike and the spring bar.

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