Turnout shock absorber and turnout shock absorption structure

Abstract

The utility model belongs to the technical field of track shock absorption, and particularly relates to a turnout shock absorber and a turnout shock absorption structure. The elastic cushion is arranged at the bottom of the top plate, and the face, away from the top plate, of the elastic cushion is used for making contact with the switch tie and provided with a plurality of bosses at intervals. The sleeve is arranged in the mounting hole and arranged in the elastic cushion in a penetrating mode, and a second bolt connected with the switch tie penetrates through the sleeve. The face, provided with the boss, of the elastic cushion is in direct friction contact with the switch tie, the sleeve forms a stop in the lateral direction of the elastic cushion and bears the pre-tightening force of the second bolt, the transverse rigidity is improved, the situation that the rigidity characteristic of the elastic cushion is affected by the pre-tightening force is avoided, the boss is arranged, the vertical damping effect is guaranteed, and the vertical rigidity meeting the use requirement is provided. The overall boundary dimension is reduced, the weight is reduced, the applicability of tunnels, existing line reconstruction and other road sections with limitation on the height of a track line is improved, and the sleeper is particularly suitable for turnout switch machines and other parts with limitation on the width of sleepers.

Description

Technical Field

[0001] The utility model belongs to the technical field of track vibration reduction, and in particular relates to a turnout vibration reducer and a turnout vibration reduction structure. Background Art

[0002] The vibration and noise problem of urban rail transit is undoubtedly a key point to be rectified in the process of green and low-carbon development. As an important part of the urban rail transit rail line, the turnout is also the weak link of the line. It usually causes large vibration and wheel-rail noise, thus causing environmental pollution or complaints from residents. Therefore, it is particularly important to take necessary vibration and noise reduction measures in the turnout area.

[0003] At present, the shock absorbers used in the turnout sections of urban rail transit in my country generally have the top plate set in the bottom plate, and the top plate and the bottom plate are bonded together by rubber vulcanization. When in use, the top plate is connected to the turnout iron pad by bolts, and the bottom plate is fixed to the turnout sleeper by bolts. Its lateral stiffness is mainly provided by the rubber between the top plate and the bottom plate. The lateral restraint capacity is weak, and the connecting plate needs to be welded after vulcanization to ensure the vertical stiffness. However, the connecting plate is easy to loosen after long-term use, and the stability needs to be further improved. In addition, due to the structural form of the top plate set in the bottom plate, the overall height and width of the shock absorber are large when the top plate size is the same. It is less suitable for sections with restrictions on the height of the track line, such as tunnel environments and existing line reconstruction. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a turnout vibration damper and a turnout vibration damping structure which have small size, good vertical and lateral rigidity stability and high applicability.

[0005] The utility model provides a turnout vibration damper, comprising:

[0006] A top plate, wherein the top plate is provided with a threaded hole and a mounting hole, wherein the threaded hole is used to connect a bolt passing through the turnout iron pad;

[0007] An elastic pad, wherein the elastic pad is arranged at the bottom of the top plate, a side of the elastic pad facing away from the top plate is used to contact the surface of the switch sleeper, and a plurality of bosses are arranged at intervals on the surface of the elastic pad;

[0008] The sleeve is arranged in the mounting hole and penetrated in the elastic pad. The sleeve has a through hole for two bolts connecting the switch sleeper to pass through, and the top plate and the sleeve are fixedly connected to the elastic pad.

[0009] Furthermore, some of the bosses are in strip shape, and the length directions of some of the bar-shaped bosses are arranged along the length direction of the switch sleeper.

[0010] Furthermore, among the plurality of bosses, two adjacent bosses are connected by reinforcing ribs.

[0011] Furthermore, there are more than two reinforcing ribs connected between two adjacent bosses.

[0012] Furthermore, a plurality of grooves are provided on a side of the elastic pad facing away from the top plate, the plurality of grooves are interconnected and / or staggered on the side of the elastic pad, a plurality of bosses are formed in the area outside the plurality of grooves on the side of the elastic pad, and the reinforcing ribs are integrally arranged in the grooves.

[0013] Furthermore, there are two threaded holes and two mounting holes, and the two threaded holes and the two mounting holes are symmetrically arranged on the top plate, and the two threaded holes are located between the two mounting holes, and the sleeves are correspondingly arranged with two.

[0014] Furthermore, the through holes of the two sleeves are both waist-shaped holes, and the length direction of the waist-shaped holes is arranged along the length direction of the switch sleeper.

[0015] Furthermore, an annular step is arranged on the outer side of the upper end of the sleeve, and when the sleeve is arranged in the mounting hole, the annular step contacts the top plate.

[0016] Furthermore, the elastic pad is a rubber pad, and the top plate and the sleeve are fixedly connected to the elastic pad by vulcanization.

[0017] The content of the utility model also provides a turnout vibration damping structure, including an elastic bar and the turnout vibration damper as described above, the elastic bar is arranged on the turnout iron pad and buckled on the side of the rail, the turnout vibration damper is arranged on the turnout sleeper, bolt 1 passes through the turnout iron pad and is connected with the threaded hole, the elastic pad is provided with a plurality of bosses on one side contacting the turnout sleeper, and bolt 2 passes through the sleeve and is connected with the turnout sleeper.

[0018] The beneficial effect of the utility model is that, when in use, bolt one passes through the turnout iron pad and is connected with the threaded hole on the top plate, bolt two passes through the through hole on the sleeve and is connected with the turnout sleeper, and the side of the elastic pad facing away from the top plate directly forms friction contact with the turnout sleeper through a plurality of bosses, and under the locking of bolt two, the elastic pad is compressed between the top plate and the turnout sleeper. The setting of the sleeve, on the one hand, can form a stopper on the lateral side of the elastic pad, and synergistically improve the lateral constraint force of the turnout shock absorber and improve the lateral stiffness. On the other hand, the sleeve can bear the pre-tightening force of bolt two to avoid the stiffness characteristics of the elastic pad being affected by the pre-tightening force. Combined with the setting of a plurality of bosses, the vertical vibration reduction effect is guaranteed while ensuring that the vertical stiffness that meets the use requirements can be provided, thereby improving the stability and reliability under long-term use. Compared with the conventional structure in which the top plate is arranged on the bottom plate, the structure of the utility model cancels the bottom plate structure, reduces the overall size and weight, is more convenient for transportation and construction, reduces the requirements and investment in each link of production and manufacturing, and improves the applicability of tunnels with restricted track line height, existing line reconstruction and other sections, and is particularly suitable for locations with restricted sleeper width such as switch machines in switch areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the structure of the turnout vibration damper.

[0020] Figure 2 It is a structural schematic diagram of the top plate of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the elastic pad of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the sleeve of the utility model.

[0023] Figure 5 It is a schematic diagram of the turnout vibration reduction structure of the utility model.

[0024] In the figure: 1. top plate; 11. threaded hole; 12. mounting hole; 2. elastic pad; 21. boss; 22. reinforcing rib; 23. groove; 3. sleeve; 31. through hole; 32. annular step; 4. turnout iron pad; 5. turnout sleeper; 6. elastic strip. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 5As shown, the utility model includes a top plate 1, an elastic pad 2 and a sleeve 3. The top plate 1 is provided with a threaded hole 11 and a mounting hole 12, and the threaded hole 11 is used to connect a bolt passing through the turnout iron pad 4, that is, used to connect the top plate 1 with the turnout iron pad 4. The elastic pad 2 is arranged at the bottom of the top plate 1, and the side of the elastic pad 2 facing away from the top plate 1 is used to contact the surface of the switch sleeper 5, and the surface of the elastic pad 2 is provided with a plurality of bosses 21, and the plurality of bosses 21 are arranged at intervals on the surface of the elastic pad 2. The sleeve 3 is arranged in the mounting hole 12 and penetrates the elastic pad 2, and the sleeve 3 has a through hole 31 for the bolt 2 connecting the switch sleeper 5 to pass through, and the top plate 1 and the sleeve 3 are fixedly connected to the elastic pad 2, so that the turnout shock absorber forms an integral part.

[0026] The turnout vibration damper provided by the utility model, when in use, the elastic pad 2 is in a compressed state, as shown in FIG. Figure 5 As shown, bolt 1 passes through the turnout iron pad 4 and is connected to the threaded hole 11 on the top plate 1, bolt 2 passes through the through hole 31 on the sleeve 3 and is connected to the switch sleeper 5, and the side of the elastic pad 2 facing away from the top plate 1 directly forms friction contact with the switch sleeper 5 through a plurality of bosses 21, and under the locking of bolt 2, the elastic pad 2 is compressed between the top plate 1 and the switch sleeper 5. The setting of the sleeve 3, on the one hand, can form a stopper on the lateral side of the elastic pad 2, and synergistically improve the lateral constraint force of the turnout shock absorber and improve the lateral stiffness. On the other hand, the sleeve 3 can bear the preload force of bolt 2 to avoid the stiffness characteristics of the elastic pad being affected by the preload force. Combined with the setting of a plurality of bosses 21, the vertical vibration reduction effect is guaranteed while ensuring that the vertical stiffness that meets the use requirements can be provided, thereby improving the stability and reliability under long-term use. Compared with the conventional structure in which the top plate is arranged on the bottom plate, the structure of the utility model cancels the bottom plate structure, reduces the overall size and weight, is more convenient for transportation and construction, reduces the requirements and investment in each link of production and manufacturing, and improves the applicability of tunnels with restricted track line height, existing line reconstruction and other sections, and is particularly suitable for locations with restricted sleeper width such as switch machines in switch areas.

[0027] In the present invention, the vertical direction refers to a direction perpendicular to the switch sleeper 5, and the lateral direction refers to a direction perpendicular to the vertical direction.

[0028] like Figure 3As shown, the plurality of bosses 21 are all in the shape of strips, and the length direction of the plurality of said bosses 21 in the shape of strips is arranged along the length direction of the switch sleeper 5, that is, when the turnout vibration damper is in use, the length direction of the plurality of bosses 21 in the shape of strips is in the same direction as the length direction of the switch sleeper 5. Among them, the length direction of the switch sleeper 5 specifically refers to the size of the switch sleeper 5 in the width direction of the straight rail. By setting the bosses 21 in the shape of strips along the length direction of the switch sleeper 5, the stiffness distribution of the turnout vibration damper along the length direction of the switch sleeper 5 is uniform, and when the pointed rail in the rail moves laterally to fit the base rail, or is separated from the base rail, it can maintain stable vertical stiffness, thereby ensuring the vertical stability of the turnout in different operating postures.

[0029] In the utility model, among the above-mentioned plurality of bosses 21, two adjacent bosses 21 are connected by reinforcing ribs 22. The provision of the reinforcing ribs 22 can provide lateral holding capability between the plurality of bosses 21, further improving the lateral stability of the turnout damper.

[0030] The height and width of the boss 21 are determined according to the actual vertical stiffness requirements. When the width of the boss 21 is relatively large, there are more than two reinforcing ribs 22 connecting two adjacent bosses 21 to effectively ensure the lateral holding capacity of the boss 21 .

[0031] In the utility model, Figure 3 As shown, the elastic pad 2 is provided with a plurality of grooves 23 on one side facing away from the top plate 1, and the plurality of grooves 23 are connected to each other and / or arranged in an interlaced manner on the surface of the elastic pad 2, and a plurality of bosses 21 are formed in the area of ​​the surface of the elastic pad 2 located outside the plurality of grooves 23, and the reinforcing ribs 22 are arranged in the grooves 23. The specific number, position, depth and width of the grooves 23 are determined according to actual requirements, and the position, height and width of the bosses 21 can be adjusted by changing the opening position, depth and width of the grooves 23.

[0032] The reinforcing rib 22 is integrally formed with the elastic pad 2 , that is, the reinforcing rib 22 is integrally arranged in the groove and is an integral part with the elastic pad 2 .

[0033] There are two mounting holes 12, which are symmetrically arranged on the top plate 1, and two sleeves 3 are correspondingly arranged, and the two sleeves 3 are correspondingly arranged in the two mounting holes 12, and the height positions of the two sleeves 3 are the same, and two bolts pass through the through holes 31 of the two sleeves 3 to connect with the switch sleeper 5, ensuring that the turnout damper is stably connected to the switch sleeper 5. In the utility model, the sleeve 3 is specifically made of steel and has good structural strength.

[0034] There are two threaded holes 11, which are symmetrically arranged on the top plate 1 and located between the two mounting holes 12. Two bolts pass through the turnout iron pad 4 in correspondence and are connected to the two threaded holes 11 to ensure a stable connection between the turnout shock absorber and the turnout iron pad 4.

[0035] In one embodiment of the present invention, the through holes 31 of the two sleeves 3 are both round holes.

[0036] In another embodiment of the utility model, the through holes 31 of the two sleeves 3 are waist-shaped holes, and the length direction of the waist-shaped holes is arranged along the length direction of the switch sleeper 5. This enables the switch damper to adapt to different track gauges and adjust the installation position, thereby improving the versatility of the switch damper.

[0037] An annular step 32 is arranged on the outer side of the upper end of the sleeve 3, and when the sleeve 3 is arranged in the mounting hole 12, the annular step 32 contacts the top plate 1. The arrangement of the annular step 32 can, on the one hand, limit the position of the sleeve 3 to prevent it from moving axially downward due to the preload force of the second bolt, and on the other hand, ensure that the preload force of the second bolt acts on the sleeve 3 to prevent the stiffness characteristics of the elastic pad 2 from being affected by the preload force.

[0038] The elastic pad 2 is a rubber pad, that is, made of rubber material. The top plate 1 and the sleeve 3 are fixedly connected with the elastic pad 2 by vulcanization, so that the turnout shock absorber is formed as an integral part.

[0039] like Figure 5 As shown, the utility model also provides a turnout vibration reduction structure, including an elastic bar 6 and a turnout vibration reduction device as described above, the turnout iron pad 4 is arranged below the rail, the elastic bar 6 is arranged on the turnout iron pad 4 through bolt 3 and buckled on the side of the rail, the turnout vibration reduction device is arranged on the turnout sleeper 5, the bolt 1 passes through the turnout iron pad 4 and is connected to the threaded hole 11, the elastic pad 2 is provided with a plurality of bosses 21 on one side in contact with the turnout sleeper 5, the bolt 2 passes through the sleeve 3 and is connected to the turnout sleeper 5, and the elastic pad 2 is compressed between the top plate 1 and the turnout sleeper 5. The turnout vibration reduction structure has a greater lateral stiffness, which ensures the vertical vibration reduction effect while ensuring that the vertical stiffness that meets the use requirements can be provided, and the stability and reliability under long-term use can be improved. When the pointed rail in the rail moves laterally to fit the base rail or is separated from the base rail, it can maintain stable vertical stiffness, and ensure the vertical stability of the turnout in different operating postures.

[0040] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0041] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A turnout damper, characterized in that it comprises: A top plate (1), wherein the top plate (1) is provided with a threaded hole (11) and a mounting hole (12), wherein the threaded hole (11) is used to connect a bolt passing through a turnout iron pad (4); An elastic pad (2), wherein the elastic pad (2) is arranged at the bottom of the top plate (1), a surface of the elastic pad (2) facing away from the top plate (1) is used to contact the surface of the switch sleeper (5), and a plurality of bosses (21) are arranged at intervals on the surface of the elastic pad (2); A sleeve (3) is arranged in the mounting hole (12) and penetrates the elastic pad (2); the sleeve (3) has a through hole (31) for a bolt (31) for connecting the switch sleeper (5) to pass through; and the top plate (1) and the sleeve (3) are both fixedly connected to the elastic pad (2).

2. The turnout damper according to claim 1, characterized in that: The plurality of bosses (21) are all in the shape of strips, and the length directions of the plurality of bosses (21) in the shape of strips are all arranged along the length direction of the switch sleeper (5).

3. The turnout damper according to claim 1 or 2, characterized in that: Among the plurality of bosses (21), two adjacent bosses (21) are connected via a reinforcing rib (22).

4. The turnout damper according to claim 3, characterized in that: There are more than two reinforcing ribs (22) connected between two adjacent bosses (21).

5. The turnout damper according to claim 3, characterized in that: A plurality of grooves (23) are provided on a surface of the elastic pad (2) facing away from the top plate (1); the plurality of grooves (23) are interconnected and / or staggered on the surface of the elastic pad (2); a plurality of bosses (21) are formed in an area of ​​the surface of the elastic pad (2) located outside the plurality of grooves (23); and the reinforcing ribs (22) are integrally arranged in the grooves (23).

6. The turnout damper according to any one of claims 1, 2, 4 and 5, characterized in that: There are two threaded holes (11) and two mounting holes (12), and the two threaded holes (11) and the two mounting holes (12) are symmetrically arranged on the top plate (1), and the two threaded holes (11) are located between the two mounting holes (12), and the sleeves (3) are correspondingly arranged with two.

7. The turnout damper according to claim 6, characterized in that: The through holes (31) of the two sleeves (3) are both waist-shaped holes, and the length direction of the waist-shaped holes is arranged along the length direction of the switch sleeper (5).

8. The turnout damper according to any one of claims 1, 2, 4, 5 and 7, characterized in that: An annular step (32) is provided on the outer side of the upper end of the sleeve (3); when the sleeve (3) is arranged in the mounting hole (12), the annular step (32) contacts the top plate (1).

9. The turnout vibration absorber according to any one of claims 1, 2, 4, 5 and 7, characterized in that: The elastic pad (2) is a rubber pad, and the top plate (1) and the sleeve (3) are fixedly connected to the elastic pad (2) by vulcanization.

10. A turnout vibration reduction structure, characterized in that: It comprises an elastic bar (6) and a switch vibration damper as claimed in any one of claims 1 to 9, wherein the elastic bar (6) is arranged on a switch iron pad (4) and buckled on the side of a rail, the switch vibration damper is arranged on a switch sleeper (5), a bolt 1 passes through the switch iron pad (4) and is connected to a threaded hole (11), a surface of the elastic pad (2) provided with a plurality of the bosses (21) contacts the switch sleeper (5), and a bolt 2 passes through a sleeve (3) and is connected to the switch sleeper (5).

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