Railway track vibration reduction fastening

Abstract

The utility model discloses a railway track vibration reduction fastener, including rail tie, rail and fastener body, the rail tie upper end is equipped with the embedded groove, and the fastener body sets up in the embedded groove, the fastener body is by the iron backing plate lower backing plate, iron backing plate and rail lower backing plate who sets up successively from below to top, the embedded groove bottom is equipped with a plurality of column groove, the iron backing plate lower backing plate bottom surface fixedly equipped with the clamping column corresponding with column groove, the clamping column inserts into the column groove, the iron backing plate lower backing plate top surface fixedly equipped with the clamping block, the iron backing plate bottom surface is equipped with the clamping groove matched with the clamping block, the clamping block embeds into the clamping groove, and B type elastic strip is fixed through spiral spike, one end of B type elastic strip is clamped into the female groove no.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and more specifically to a railway track vibration damping fastener. Background Technology

[0002] Railway track fasteners, as connecting components between rails and sleepers, not only serve to fix the rails but also have a certain vibration damping function. However, existing vibration damping fasteners have relatively limited functions, and during long-term use, the fastening nuts and bolts in the fasteners are easily affected by the vibrations generated by train operation, which can cause the fastening nuts or bolts to loosen.

[0003] A railway track vibration damping fastener disclosed in the prior art (CN222119800U) uses a first elastic washer and a second elastic washer to support the baffle assembly, elastic strip, and sleeper, reducing vibration between the fasteners and providing a sealing effect, thus improving the safety of the railway track vibration damping fastener. However, this utility model still has the following problems: rail vibration causes the components of the fastener body to shift, leading to bottom imbalance and loosening, which can easily cause safety hazards. Therefore, this utility model proposes a railway track vibration damping fastener. Utility Model Content

[0004] The purpose of this utility model is to provide a railway track vibration damping fastener that can effectively reduce vibration, prevent component displacement, and improve overall stability and safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A railway track vibration damping fastener includes a sleeper, a rail, and a fastener body. The sleeper has an inner groove at its upper end, and the fastener body is disposed in the inner groove. The fastener body consists of a lower iron pad, an iron pad, and a rail pad arranged sequentially from bottom to top. The bottom of the inner groove has several column grooves. The bottom surface of the lower iron pad is fixed with a locking post corresponding to the column groove, and the locking post is inserted into the column groove. The top surface of the lower iron pad is fixed with a locking block, and the bottom surface of the iron pad has a locking groove matching the locking block. The locking block is embedded in the locking groove. A B-type elastic clip is fixed by a spiral rail spike. One end of the B-type elastic clip is inserted into the inner groove of a protrusion on the iron pad, and the other end is inserted into the inner groove of an insulating gauge block.

[0007] Furthermore, the spiral track spike passes sequentially through the first damping ring, the B-type spring strip, the second damping ring, the iron pad, and the lower pad of the iron pad, and is locked into the pre-embedded sleeve.

[0008] Furthermore, the rail is located on the upper end of the rail pad, and the insulating gauge block is abutted against both sides of the rail pad.

[0009] Furthermore, the upper end of the lower pad of the iron pad is provided with a top groove, and the iron pad is embedded in the top groove.

[0010] Furthermore, wrapping material is fixedly installed on both sides of the rail.

[0011] Furthermore, the inner side of the packaging material is provided with a side groove, and a rubber protective sleeve is fixedly installed in the side groove. One end of the rubber protective sleeve abuts against the steel rail, and a spring groove is provided in the rubber protective sleeve, with a vibration damping spring installed in the spring groove.

[0012] Furthermore, fastener covers are fixedly provided on both sides of the upper end of the fastener body, and the side of the fastener cover away from the fastener body abuts against the corresponding wrapping material.

[0013] The beneficial effects of this utility model are as follows: This utility model uses the column groove at the bottom of the sleeper's inner groove to engage with the locking post on the bottom surface of the lower pad of the iron pad, and combines the locking block on the top surface of the lower pad of the iron pad with the locking groove on the bottom surface of the iron pad to form a horizontal two-way constraint, which can effectively prevent it from shifting position due to vibration; by setting the vibration damping ring one and vibration damping ring two, as well as the B-type elastic strip with both ends embedded in the inner groove one and inner groove two, vibration energy can be absorbed, directly suppressing bolt vibration, shifting and loosening. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0017] Reference numerals: 1. Sleeper; 101. Embedded groove; 102. Column groove; 2. Lower pad of iron pad; 201. Top groove; 3. Protrusion; 301. Inner groove one; 4. Insulated gauge block; 401. Inner groove two; 5. Iron pad; 501. Slot; 6. Embedded sleeve; 7. Spiral spike; 8. Wrapping material; 801. Side groove; 9. Rubber protective sleeve; 901. Spring groove; 10. Under-rail pad; 11. Fastener cover; 12. Rail; 13. Vibration damping spring; 14. Locking post; 15. Type B elastic bar; 16. Locking block; 17. Vibration damping ring one; 18. Vibration damping ring two. Detailed Implementation

[0018] like Figure 1As shown in the specific embodiment, a railway track vibration damping fastener includes a sleeper 1, a rail 12 and a fastener body. The sleeper 1 has an inner groove 101 at its upper end, and the fastener body is disposed in the inner groove 101. The fastener body consists of an iron pad 2, an iron pad 5 and a rail pad 10 arranged sequentially from bottom to top. The fastener body serves to fix the rail 12.

[0019] like Figures 1 to 2 As shown, the bottom of the embedded groove 101 is provided with several column grooves 102. The bottom surface of the lower pad 2 of the iron pad is fixed with a locking post 14 corresponding to the column groove 102. The locking post 14 is inserted into the column groove 102. The top surface of the lower pad 2 of the iron pad is fixed with a locking block 16. The bottom surface of the iron pad 5 is provided with a locking groove 501 that matches the locking block 16. The locking block 16 is embedded in the locking groove 501. The double-fitting structure of the locking post 14 inserted into the column groove 102 and the locking block 16 embedded in the locking groove 501 effectively prevents the lower pad 2 and the iron pad 5 from horizontal displacement due to vibration, effectively eliminating the bottom imbalance and looseness problems. The fixing of the iron pad 5 can ensure the fixing of the upper rail pad 10 embedded in the iron pad 5, thereby preventing the rail 12 from shifting and effectively improving the overall stability and safety.

[0020] The spiral rail spike 7 passes sequentially through the damping ring 17, the B-type elastic band 15, the damping ring 18, the iron pad 5, and the lower pad 2 of the iron pad, and is locked into the pre-embedded sleeve 6. The damping rings 17 and 18 can effectively buffer the vibration of the spiral rail spike 7. Combined with the locking structure in which one end of the B-type elastic band 15 is inserted into the inner groove 301 of the protrusion 3 on the iron pad 5, and the other end is inserted into the inner groove 401 of the insulating gauge block 4, the bolt loosening caused by vibration can be suppressed, thus improving safety performance.

[0021] The rail 12 is placed on the upper end of the rail pad 10, and the insulating gauge block 4 is placed against both sides of the rail pad 10. The setting of the insulating gauge block 4 can accurately control the gauge, fix the rail 12, and block stray current, effectively reducing the risk of lightning strike.

[0022] The upper end of the lower pad 2 of the iron pad is provided with a top groove 201. The iron pad 5 is embedded in the top groove 201. The top groove 201 can further fix the iron pad 5 and prevent the iron pad 5 from shifting.

[0023] Both sides of the rail 12 are fixed with wrapping material 8, which can effectively suppress the vibration of the rail 12. By consuming the energy generated by the vibration of the rail 12 itself, the vibration amplitude of the rail 12 body is greatly reduced, thereby significantly reducing the noise generated by vibration and extending the service life of the rail 12 and track components. In conjunction with the wrapping material 8, there is a side groove 801 on the inside of the side groove 801, and a rubber protective sleeve 9 is fixed in the side groove 801. One end of the rubber protective sleeve 9 abuts against the rail 12, and there is a spring groove 901 in the rubber protective sleeve 901. A vibration damping spring 13 is installed in the spring groove 901. Through the compression deformation of the vibration damping spring 13, the vibration can be further reduced to the fastener body, thereby indirectly alleviating the displacement and loosening problems.

[0024] Fastener covers 11 are fixedly provided on both sides of the upper end of the fastener body. The side of the fastener cover 11 away from the fastener body abuts against the corresponding wrapping material 8. The fastener cover 11 can prevent mud and water from entering.

[0025] Working principle: The rail 12 experiences multi-frequency vibrations due to wheel-rail impact. The covering material 8 covers both sides of the rail 12, directly absorbing high-frequency vibrations. The damping spring 13 is compressed and deformed within the spring groove 901 of the rubber protective sleeve 9, dissipating the energy of medium and low-frequency vibrations. Through the combination of the above, it absorbs multiple vibrations. The locking post 14 is inserted into the post groove 102, which can limit the horizontal displacement of the lower pad 2 of the iron pad 5 relative to the sleeper 1. The locking block 16 is embedded in the locking groove 501, which can lock the iron pad 5 and the sleeper 1 in place. The lower pad 2 prevents the iron pad 5 from shifting. The vibration damping ring 17 and the vibration damping ring 18 can buffer the axial vibration of the spiral rail spike 7 and prevent it from loosening and falling off. One end of the B-type elastic bar 15 is inserted into the inner groove 301 of the protrusion 3 of the iron pad 5, and the other end is inserted into the inner groove 401 of the insulating gauge block 4, which can effectively limit the lateral displacement of the elastic bar. Through the above-mentioned vibration energy being consumed step by step, the residual force is blocked by the mechanical locking structure, realizing the closed loop of "vibration reduction → anti-displacement → anti-loosening".

[0026] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A railway track vibration damping fastener, comprising a sleeper (1), a rail (12), and a fastener body, wherein the upper end of the sleeper (1) is provided with an embedded groove (101), and the fastener body is disposed within the embedded groove (101), characterized in that, The fastener body consists of a lower iron pad (2), an iron pad (5), and a rail pad (10) arranged sequentially from bottom to top. The bottom of the embedded groove (101) is provided with several column grooves (102). The bottom surface of the lower iron pad (2) is fixedly provided with a locking post (14) corresponding to the column groove (102). The locking post (14) is inserted into the column groove (102). The top surface of the lower iron pad (2) is fixedly provided with a locking block (16). The bottom surface of the iron pad (5) is provided with a locking groove (501) matching the locking block (16). The locking block (16) is embedded in the locking groove (501). The B-type elastic bar (15) is fixed by a spiral rail spike (7). One end of the B-type elastic bar (15) is inserted into the inner groove (301) of the protrusion (3) provided on the iron pad (5), and the other end is inserted into the inner groove (401) of the insulating gauge block (4).

2. The railway track vibration damping fastener according to claim 1, characterized in that, The spiral rail spike (7) passes through the first damping ring (17), the B-type elastic bar (15), the second damping ring (18), the iron pad (5) and the lower pad of the iron pad (2) in sequence, and is locked into the pre-embedded sleeve (6).

3. A railway track vibration damping fastener according to claim 1, characterized in that, The rail (12) is located on the upper end of the rail pad (10), and the insulating gauge block (4) is located on both sides of the rail pad (10).

4. A railway track vibration damping fastener according to claim 1, characterized in that, The upper end of the lower pad (2) of the iron pad is provided with a top groove (201), and the iron pad (5) is embedded in the top groove (201).

5. A railway track vibration damping fastener according to claim 1, characterized in that, Both sides of the rail (12) are fixed with wrapping material (8).

6. A railway track vibration damping fastener according to claim 5, characterized in that, The inner side of the wrapping material (8) is provided with a side groove (801), and a rubber protective sleeve (9) is fixedly provided in the side groove (801). One end of the rubber protective sleeve (9) abuts against the rail (12). A spring groove (901) is provided in the rubber protective sleeve (9), and a damping spring (13) is provided in the spring groove (901).

7. A railway track vibration damping fastener according to claim 6, characterized in that, Both sides of the upper end of the fastener body are fixedly provided with fastener covers (11), and the side of the fastener cover (11) away from the fastener body abuts against the corresponding wrapping material (8).

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