An orbital multi-stage distance-adjustable insulation and vibration damping device

Abstract

The present invention relates to the field of rail transit insulation and vibration reduction, and specifically provides a multi-stage track gauge insulation and vibration reduction device, comprising two relatively assembled vibration reduction assemblies, each comprising a vibration reduction pad at the bottom and a wrapping plate extending upward from the outer wall of the vibration reduction pad. The lower portion of the rail is wrapped by the wrapping plate and the vibration reduction pad of the two vibration reduction assemblies, and the rail bottom is located on the vibration reduction pad. The outer wall of the wrapping plate is provided with a gauge block, which comprises a limit platform extending laterally to the outside of the wrapping plate and two or more limit slots defined in the limit platform. The thickness between the bottom of the limit slot and the side end surface of the wrapping plate facing away from the rail is set to H, and multi-stage track gauge adjustment is achieved by adjusting the thickness H at different limit slots. The present invention can prevent the rail vibration reduction fastener from being affected by water, oil, and iron filings, improve insulation performance, and reduce construction workload.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit insulation and vibration reduction, and in particular to a track multi-stage distance-adjustable insulation and vibration reduction device. Background Art

[0002] Currently, rail transit construction is widespread in urban areas. In DC electric transportation systems such as urban subways and light rail, steel rails are often used as return lines. Because existing rail installation technology cannot achieve complete ground insulation, some current leaks into the ground during use, generating stray currents. This can cause severe corrosion to subway tunnel reinforcement, buried metal components, and pipelines, endangering the safety of buildings and facilities. Therefore, it is imperative to protect against corrosion caused by stray currents in subways and improve the insulation performance of fastener systems.

[0003] At the same time, during subway operation, the uneven contact surface between the wheels and rails generates vibration and noise. The vibration and noise caused by track equipment is a public nuisance that seriously affects people's quality of life, affecting driving safety and passenger comfort, and also has a certain impact on buildings and bridges along the track. Therefore, reducing rail vibration and noise is also of great significance to improving the surrounding environment along the track.

[0004] In the prior art, the following patents relate to insulation and vibration reduction devices for rail transit devices:

[0005] 1. Patent application number CN113564971A, titled "A Rail Insulation Fastener Protection Structure," includes a gauge block and a rail pad. The gauge block includes a gauge block body and a first protective body, while the rail pad includes a pad body and a second protective body. This solution extends the creepage distance of the insulating component and creates an insulating interface that is less susceptible to contamination and moisture, thereby maintaining good insulation performance between the rail and the ground in complex environments such as contamination and moisture.

[0006] 2. Patent publication number CN214737041U, titled "A Low-Resistance Rail Fastener," includes an embedded casing, baseplate, vibration-damping pad, mounting seat, W-shaped spring clips, gauge block, anti-loosening bolts, and bosses. This solution reduces pressure on the gauge block, thereby minimizing the resistance of the entire fastener to the rail.

[0007] The above-mentioned prior art has the following problems:

[0008] 1. The vibration-damping pad and the distance-adjusting block are separate structures with many parts and components, large construction workload, and large rail vibration and noise.

[0009] 2. The existing track distance adjustment blocks can only be used for single distance adjustment. During the installation of track fasteners, fixed-type distance adjustment blocks need to be replaced to adjust the track gauge, which will increase costs and construction workload.

[0010] 3. The creepage distance between the existing fastener rails and the metal parts of the fastener is short and easily affected by the environment, resulting in a decrease in the insulation performance of the fastener.

[0011] In summary, how to design an insulating vibration reduction device with a simple structure and capable of realizing multi-level gauge adjustment of the gauge block is a problem that needs to be solved urgently. Summary of the Invention

[0012] In order to solve the above problems, the present invention provides a multi-stage track distance adjustment insulation and vibration reduction device. By forming the distance adjustment block and the vibration reduction pad into an integral structure, the product structure can be simplified, the noise and construction workload can be reduced, the rails can be wrapped to isolate the rails from the metal parts of the vibration reduction fasteners to improve the insulation performance, and the multi-stage distance adjustment of the rails can be achieved through the adjustment block.

[0013] To achieve the above-mentioned purpose, the present invention proposes the following technical solution: a multi-stage track distance adjustment insulation vibration reduction device, comprising two vibration reduction components relatively assembled and arranged, the vibration reduction component comprising a vibration reduction pad located at the bottom and a wrapping plate extending upward from the outer wall of the vibration reduction pad, the lower part of the rail is wrapped by the wrapping plate and the vibration reduction pad in the two vibration reduction components and the bottom of the rail is located on the vibration reduction pad; a distance adjustment block is provided on the outer wall of the wrapping plate, the distance adjustment block comprises a limit platform extending to the outside of the wrapping plate in the horizontal direction and two or more limit slots opened on the limit platform; the thickness between the bottom of the limit slot and the side end face of the wrapping plate away from the rail is set to H, and multi-stage track gauge adjustment is performed by adjusting the thickness H at different limit slots.

[0014] Preferably, the thickness H at different limiting grooves on the same vibration damping assembly in the two vibration damping assemblies is different; the thickness H at each limiting groove on different vibration damping assemblies in the two vibration damping assemblies is the same or different.

[0015] Preferably, the bottom of the limiting groove is an inclined surface structure that is inclined from top to bottom toward the vertical center line L of the rail.

[0016] Preferably, the angle α between the bottom of the limiting groove and the vertical center line L of the rail is 0°-30°.

[0017] Preferably, a clamping protrusion is provided on the bottom of the limiting groove, protruding outward toward the side away from the vertical center line L of the rail.

[0018] Preferably, the clamping protrusion is an arc-shaped structure or a polygonal structure.

[0019] Preferably, the two vibration damping assemblies are vibration damping assembly 1 and vibration damping assembly 2, respectively, and vibration damping assembly 1 and vibration damping assembly 2 are fastened by the inner end surfaces of vibration damping pad 1 and vibration damping pad 2.

[0020] Preferably, the inner end faces of the vibration-damping pad 1 and the vibration-damping pad 2 are respectively provided with a clamping strip 1 and a clamping strip 2 protruding toward the side away from the distance adjusting block, and the inner end faces of the vibration-damping pad 2 and the vibration-damping pad 1 are respectively provided with a clamping groove 2 and a clamping groove 1 facing the distance adjusting block to accommodate the clamping clamping strip 1 and the clamping strip 2.

[0021] Preferably, the wrapping plate includes an upper end surface extending from the side end surface toward the vertical center line L of the rail, and the lower part of the rail is wrapped by the side end surfaces, upper end surfaces and vibration damping pads 1 and 2 of the two wrapping plates in the vibration damping assembly 1 and the vibration damping assembly 2; the upper end surface is an inclined structure arranged downwardly inclined away from the vertical center line L of the rail.

[0022] Preferably, the distance adjusting block includes a mounting platform 1 and a mounting platform 2 which are arranged in sequence and extend from the upper end surface of the limit platform toward the vertical center line L of the rail. Both the mounting platform 1 and the mounting platform 2 are inclined structures inclined downward toward the limit platform; the longitudinal length of the mounting platform 2 is equal to the longitudinal length of the upper end surface, the longitudinal length of the mounting platform 1 is smaller than the longitudinal length of the upper end surface, and an inclined step is formed between the mounting platform 2 and the upper end surface.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention wraps the rails with wrapping plates and vibration-damping pads, which can cut off the connection between the rails and the metal parts of the vibration-damping fasteners, increase the creepage distance of the vibration-damping fasteners, prevent the vibration-damping fasteners from being affected by water, oil, and iron filings, and improve the insulation performance of the vibration-damping fasteners.

[0025] 2. In the present invention, the vibration-damping pad and the distance-adjusting block are integrated into one to form an integral structure, which can reduce the number of parts of the vibration-damping fastener, reduce the construction workload, and reduce costs.

[0026] 3. The distance adjustment block in the present invention includes at least two limiting grooves, and the thickness H between the bottom of the limiting groove and the side end surface of the wrapping plate away from the rail is adjustable, thereby realizing multi-level distance adjustment of the rail and improving the versatility of the vibration-damping fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the insulation and vibration reduction device provided by an embodiment of the present invention.

[0028] Figure 2 It is a schematic diagram of the overall front view structure of the insulation and vibration reduction device provided by an embodiment of the present invention.

[0029] Figure 32 is a schematic structural diagram of a vibration reduction assembly provided in an embodiment of the present invention.

[0030] Figure 4 It is a schematic diagram of the assembled structure of the first and second vibration damping components provided in an embodiment of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the insulation and vibration reduction device provided in an embodiment of the present invention.

[0032] Figure numerals: vibration damping component 1, vibration damping component 2, wrapping plate 3, side end face 4, upper end face 5, distance adjusting block 6, limiting platform 7, limiting groove 8, groove bottom 9, clamping protrusion 10, vibration damping pad 11, clamping strip 12, clamping groove 13, vibration damping pad 2 14, clamping strip 2 15, clamping groove 2 16, inner end face 17, mounting platform 1 18, mounting platform 2 19, inclined step 20, steel pad 21, spring bar seat 22, elastic body 23, nylon plate 24, rail 25, rail bottom 26. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following Figure 1-5 The present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention. Figure 1 The direction indicated by M is the direction of vehicle travel, and the horizontal direction is Figure 1 The direction indicated by N is vertical. Figure 1 Direction shown by P.

[0034] A track multi-stage distance adjustment insulation vibration reduction device is used on a vibration reduction fastener to insulate and reduce vibration of the rail 25, such as Figure 1 As shown, the vibration damping fastener includes a steel plate 21, a spring bar seat 22 and a spring bar. After the rail 25 and the insulating vibration damping device are installed, the spring bar seat 22 is installed on the steel plate 21, and the spring bar is installed on the spring bar seat 22 to clamp the insulating vibration damping device and the rail 25. Figure 1 As shown, the insulating vibration damping device includes two vibration damping components relatively assembled and mounted, the two vibration damping components are vibration damping component 1 and vibration damping component 2; the vibration damping component includes a vibration damping pad located at the bottom, a wrapping plate 3 extending upward from the outer wall of the vibration damping pad, and the outer wall of the vibration damping pad is Figure 3 The vibration-damping pad shown at K in the middle is the outer end wall away from the vertical center line L of the rail 25. The vibration-damping pad includes a central nylon plate 24 and elastomers 23 located on both sides of the nylon plate 24; the lower part of the rail 25 is wrapped by the wrapping plate 3 and the vibration-damping pad in the two vibration-damping components, and the rail bottom 26 of the rail 25 is located on the vibration-damping pad, specifically on the elastomer 23; a distance adjustment block 6 is provided on the outer wall of the wrapping plate 3.

[0035] The wrapping plate 3 includes a side end face 4 arranged away from the vertical center line L of the rail 25 and parallel to the vertical center line L of the rail 25, and an upper end face 5 extending from the side end face 4 toward the vertical center line L of the rail 25; the upper end face 5 is an inclined structure arranged downwardly toward the vertical center line L away from the rail 25, so as to facilitate the discharge of water, oil, dust and impurities, thereby improving the insulation performance of the vibration-damping fastener.

[0036] like Figure 3 、 4 As shown, the vibration damping assembly 1 and the vibration damping assembly 2 are fitted and clamped by the inner end faces 17 of the vibration damping pad 11 and the vibration damping pad 2 14. When the vibration damping assembly 1 and the vibration damping assembly 2 are fitted and mounted, the inner end faces 17 of the vibration damping assembly 1 and the vibration damping assembly 2 coincide with the vertical center line L of the rail 25; the inner end faces 17 of the vibration damping pad 1 11 and the vibration damping pad 2 14 are respectively provided with a clamping strip 12 and a clamping strip 2 15 protruding toward the side away from the distance adjusting block 6, and the inner end faces 17 of the vibration damping pad 2 14 and the vibration damping pad 1 11 are respectively provided with a clamping strip 12 and a clamping strip 2 facing the distance adjusting block 6. 15 of the card slot 2 16 and the card slot 1 13; when the vibration damping pad 1 11 and the vibration damping pad 2 14 are fitted and pressed together, the card strip 1 12 is clamped in the card slot 2 16, and the card strip 2 15 is clamped in the card slot 1 13; the lower part of the rail 25 is wrapped by the side end faces 4, the upper end faces 5 and the vibration damping pad 1 11 and the vibration damping pad 2 14 of the two wrapping plates 3 in the vibration damping component 1 and the vibration damping component 2, so that in special environments, rainwater, oil, dust and iron filings will fall on the upper part of the wrapping plate 3 instead of falling on the metal parts, cutting off the risk of the above-mentioned pollutants causing conduction between the rail and the metal parts in the vibration damping fastener.

[0037] like Figure 1 、 4 As shown in FIG5 , the distance adjusting block 6 includes a limit platform 7 extending to the outside of the wrapping plate 3 in the transverse direction and two or more limit slots 8 opened on the limit platform 7, as shown in FIG5 . Figure 4 As shown, in this embodiment, the distance adjustment block 6 in the vibration damping component 1 and the vibration damping component 2 2 is respectively provided with two limit slots 8, namely the limit slot 8a and the limit slot 8b located on the vibration damping component 1 and the limit slot 8c and the limit slot 8d located on the vibration damping component 2 2. Those skilled in the art can also set three limit slots 8, four limit slots 8 or more limit slots 8 according to actual needs.

[0038] Assume that the thickness between the bottom 9 of the limit groove 8 and the side end face 4 of the wrapping plate 3 is H, and multi-level track gauge adjustment can be performed by adjusting the thickness H at different limit grooves 8; the thickness H at different limit grooves 8 on the same vibration damping component in the vibration damping component 1 and the vibration damping component 2 is different, and in actual use, the spring bar seat 22 can be clamped in the limit groove 8 of the corresponding thickness H according to the actual track gauge requirements, so as to achieve multi-level track gauge adjustment; the thickness H at each limit groove 8 on different vibration damping components in the vibration damping component 1 and the vibration damping component 2 is the same or different, that is, in actual use, only the thickness H on the vibration damping component 1 or the thickness H on the vibration damping component 2 can be adjusted according to the actual track gauge requirements, or the thickness H on the vibration damping component 1 and the vibration damping component 2 can be adjusted at the same time. Figure 4 As shown, the thickness at the limit groove 8a is Ha, the thickness at the limit groove 8b is Hb, the thickness at the limit groove 8c is Hc, and the thickness at the limit groove 8d is Hd, that is, Ha is different from Hb, Hc is different from Hd, Ha is the same as or different from Hc and Hd, and Hb is the same as or different from Hc and Hd.

[0039] like Figure 5 As shown, the bottom 9 of the limiting groove 8 is an inclined surface structure that is inclined from top to bottom toward the vertical center line L of the rail 25. At the same time, the surface of the elastic bar seat 22 that matches and contacts the limiting groove 8 is configured as a corresponding inclined surface structure. The inclined surface disperses the lateral force of the rail 25 and reduces the lateral shear force borne by the connecting spikes in the vibration-damping fastener. The angle α between the bottom 9 of the limiting groove 8 and the vertical center line L of the rail 25 is 0°-30°, preferably less than 10°, which can reduce the lateral shear force while ensuring the clamping force between the elastic bar seat 22 and the vibration-damping device. Figure 5 As shown, a clamping protrusion 10 is provided on the bottom 9 of the limiting groove 8, protruding outward toward the side of the vertical center line L away from the rail 25. The clamping protrusion 10 is preferably provided at the bottom of the groove bottom 9; a connecting groove that cooperates with the clamping protrusion 1 is provided on the surface of the elastic bar seat 22 that matches and contacts the limiting groove 8 to improve the connection force between the limiting groove 8 and the elastic bar seat 22. The clamping protrusion 10 is an arc-shaped structure or a polygonal structure including a rectangular structure, a prismatic structure, etc. It is preferred that the clamping protrusion 10 is set to a circular arc structure to facilitate the clamping protrusion 10 to be clamped into the connecting groove.

[0040] like Figure 4As shown, the distance adjusting block 6 includes a mounting platform 18 and a mounting platform 2 19 which are arranged in sequence and extend from the limit platform 7 to the upper end surface 5 toward the vertical center line L of the rail 25. The mounting platform 18 and the mounting platform 2 19 are arranged in conjunction with the elastic bars; the mounting platform 1 18 and the mounting platform 2 19 are both inclined structures inclined downward toward the limit platform 7, which are convenient for draining water, oil and debris outward and improving the insulation performance of the vibration-damping fastener; the longitudinal length of the mounting platform 2 19 is equal to the longitudinal length of the upper end surface 5, and the longitudinal length of the mounting platform 1 18 is less than the longitudinal length of the upper end surface 5. An inclined step 20 is formed between the mounting platform 2 19 and the upper end surface 5, and the creepage distance is increased by the inclined step 20.

[0041] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0042] The above specific embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A track multi-stage spacing adjustment insulation vibration reduction device, characterized in that: The invention comprises two vibration-damping components relatively assembled and arranged, wherein the vibration-damping components comprise a vibration-damping pad located at the bottom and a wrapping plate (3) extending upward from the outer wall of the vibration-damping pad, the lower part of the rail (25) is wrapped by the wrapping plates (3) and the vibration-damping pad in the two vibration-damping components, and the rail bottom (26) of the rail (25) is located on the vibration-damping pad; a distance-adjusting block (6) is provided on the outer wall of the wrapping plate (3), and the distance-adjusting block (6) comprises a limit platform (7) extending to the outer side of the wrapping plate (3) in the transverse direction and two or more limit slots (8) provided on the limit platform (7); the thickness between the groove bottom (9) of the limit slot (8) and the side end surface (4) of the wrapping plate (3) away from the rail (25) is H, and the thickness H at different limit slots (8) is adjusted. Multi-level track gauge adjustment; the wrapping plate (3) includes an upper end surface (5) extending from the side end surface (4) toward the vertical center line L of the rail (25); the distance adjustment block (6) includes a mounting platform (18) and a mounting platform (19) extending from the limit platform (7) to the upper end surface (5) toward the vertical center line L of the rail (25) in sequence, and the mounting platform (18) and the mounting platform (19) are both inclined structures inclined downward toward the limit platform (7); the longitudinal length of the mounting platform (19) is equal to the longitudinal length of the upper end surface (5), the longitudinal length of the mounting platform (18) is less than the longitudinal length of the upper end surface (5), and an inclined step (20) is formed between the mounting platform (19) and the upper end surface (5).

2. The track multi-stage spacing adjustment insulation vibration reduction device according to claim 1, characterized in that: The thickness H at different limiting grooves (8) on the same vibration damping assembly in the two vibration damping assemblies is different; the thickness H at each limiting groove (8) on different vibration damping assemblies in the two vibration damping assemblies is the same or different.

3. The track multi-stage spacing adjustment insulation vibration reduction device according to claim 2, characterized in that: The groove bottom (9) of the limiting groove (8) is an inclined surface structure that is inclined from top to bottom toward the vertical center line L of the rail (25).

4. The track multi-stage spacing adjustment insulation vibration reduction device according to claim 3, characterized in that: The angle α between the groove bottom (9) of the limiting groove (8) and the vertical center line L of the rail (25) is 0°-30°.

5. The track multi-stage spacing adjustment insulation and vibration reduction device according to claim 4, characterized in that: A clamping protrusion (10) is provided on the bottom (9) of the limiting groove (8) and protrudes outwards toward a side of the vertical center line L away from the rail (25).

6. The track multi-stage spacing adjustment insulation and vibration reduction device according to claim 5, characterized in that: The clamping protrusion (10) is an arc-shaped structure or a polygonal structure.

7. The track multi-stage spacing adjustment insulation and vibration reduction device according to any one of claims 1 to 6, characterized in that: The two vibration damping components are vibration damping component 1 (1) and vibration damping component 2 (2), respectively. Vibration damping component 1 (1) and vibration damping component 2 (2) are fastened together by the inner end surfaces (17) of vibration damping pad 1 (11) and vibration damping pad 2 (14).

8. The track multi-stage spacing adjustment insulation vibration reduction device according to claim 7, characterized in that: A clamping strip 1 (12) and a clamping strip 2 (15) are respectively provided on the inner end surfaces (17) of the vibration-damping pad 1 (11) and the vibration-damping pad 2 (14) on the side away from the distance-adjusting block (6), and a clamping groove 2 (16) and a clamping groove 1 (13) are respectively provided on the inner end surfaces (17) of the vibration-damping pad 2 (14) and the vibration-damping pad 1 (11) in the direction of the distance-adjusting block (6) for accommodating the clamping strip 1 (12) and the clamping strip 2 (15).

9. The track multi-stage spacing adjustment insulation and vibration reduction device according to claim 8, characterized in that: The lower portion of the rail (25) is wrapped by the side end surfaces (4), upper end surfaces (5) of the two wrapping plates (3) in the vibration-damping component 1 (1) and the vibration-damping component 2 (2), and the vibration-damping pad 1 (11) and the vibration-damping pad 2 (14); the upper end surface (5) is an inclined surface structure arranged downwardly in a direction away from the vertical center line L of the rail (25).

Images