Fastener damping device for rail transit

Abstract

The utility model provides a fastener damping device for rail transit, and relates to the field of fastener damping devices. The vibration isolation device comprises a first frame, a second frame and an elastic device, the bottom of the first frame penetrates through the top of the second frame, the bottom of the first frame is connected with the top of the second frame through the elastic device, the bottom of the second frame is arranged on a sleeper, and the elastic device comprises a connecting device and an elastic structure. One end of the connecting device is fixedly connected with the first frame, the other end of the connecting device penetrates through the second frame, and the elastic structure is fixedly connected with the first frame and the second frame. And the supporting vibration reduction structure comprises a supporting structure and a vibration reduction structure, the outer side of the supporting structure is connected with the inner side of the vibration reduction structure, and the bottom of the vibration reduction structure is connected with the top of the first frame. According to the device, the problem that a fastener damping device is single is solved, and the damping effect of the fastener damping device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of fastener vibration reduction devices, in particular to a fastener vibration reduction device used for rail transportation. Background Art

[0002] In the existing fastener vibration reduction device, there are mainly a track base, a gasket and a fixing bolt. In the fastener vibration reduction device, the gasket is set between the track base and the track by the fixing bolt. In this structure, the existing fastener vibration reduction device is relatively simple, resulting in an unsatisfactory vibration reduction effect of the fastener vibration reduction device, which cannot meet the vibration reduction effect required in rail transit. Therefore, there is an urgent need for a fastener vibration reduction device for rail transit, which solves the problem of the fastener vibration reduction device being relatively simple and ensures the vibration reduction effect of the fastener vibration reduction device in rail transit. Utility Model Content

[0003] The purpose of the utility model is to provide a fastener vibration reduction device for rail transit to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0004] A fastener vibration reduction device for rail transit, comprising: the vibration isolation device comprises a first frame, a second frame and an elastic device, the bottom of the first frame passes through the top of the second frame, the bottom of the first frame is connected to the top of the second frame through the elastic device, the bottom of the second frame is arranged on a sleeper, the elastic device comprises a connecting device and an elastic structure, one end of the connecting device is fixedly connected to the first frame, the other end of the connecting device passes through the second frame, and the elastic structure is fixedly connected to the first frame and the second frame respectively; and a supporting vibration reduction structure, the supporting vibration reduction structure comprises a supporting structure and a vibration reduction structure, the outer side of the supporting structure is connected to the inner side of the vibration reduction structure, and the bottom of the vibration reduction structure is connected to the top of the first frame.

[0005] Preferably, the first frame is provided with a first pillar, a second pillar and a plate surface, the plate surface is connected to the bottom of the first pillar and the second pillar respectively, and the top of the first pillar and the second pillar are both connected to the bottom of the vibration reduction structure.

[0006] Preferably, the second frame is provided with two first brackets, two second brackets and four third pillars, the two first brackets are arranged opposite to each other, the two second brackets are arranged opposite to each other, the first bracket and the second bracket are arranged adjacent to each other, the two ends of the two first brackets are respectively fixedly connected to the ends of the two second brackets to form a rectangle, and the four third pillars are evenly distributed at the fixed connection between the first bracket and the second bracket.

[0007] Preferably, the cross-section of the first bracket is set in an "L" shape, wherein a limiting hole is opened on the horizontal part of the first bracket, the connecting device is set in a columnar shape, one end of the connecting device is fixedly connected to the board surface, and the other end of the connecting device passes through the limiting hole, and the connecting device limits the position between the first bracket and the board surface.

[0008] Preferably, the support and vibration reduction structure includes an anchor bolt, the support structure is provided with a first through hole, the first through hole is arranged at the outer wall of the anchor bolt, and the hole diameter of the first through hole is larger than the outer diameter of the anchor bolt.

[0009] Preferably, the vibration reduction structure is provided with a second through hole, the second through hole is arranged at the outer wall of the supporting structure, and the diameter of the second through hole is larger than the outer diameter of the supporting structure.

[0010] Preferably, the support structure comprises a support column and a support block, support column protrusions are provided at both ends of the support column, the support column protrusion is provided with a mounting groove, and support protrusions are provided at both ends of the support block, and the support protrusions are relatively matched with the mounting grooves.

[0011] Preferably, the supporting vibration-damping structure comprises a fixing structure, wherein the fixing structure is arranged at the top of the supporting structure, a groove is provided at one end of the top of the supporting structure, and a convex ring is provided at one end of the bottom of the fixing structure, wherein the convex ring cooperates with the groove.

[0012] Preferably, the supporting vibration reduction structure includes an iron pad and a sleeper pad, the top of the iron pad is connected to the bottom of the vibration reduction structure, the bottom of the iron pad is connected to the sleeper pad, the sleeper pad is arranged on the sleeper, and the inner wall of the sleeper pad is connected to the outer wall of the vibration isolation device.

[0013] Preferably, the vibration damping structure includes a first vibration damping part and a second vibration damping part, the tops of the first vibration damping part and the second vibration damping part are both connected to the bottom of the fixed structure, the bottom of the first vibration damping part is connected to the first frame, the bottom of the second vibration damping part is connected to the top of the iron pad, and the height of the first vibration damping part is greater than the height of the second vibration damping part.

[0014] The beneficial effects of this device are:

[0015] The utility model introduces a vibration isolation device, a supporting structure and a vibration reduction structure, wherein the first frame in the vibration isolation device is connected to the second frame through the elastic device, and the movement between the elastic device and the first frame and the second frame has a vibration reduction effect on the overall device. The supporting structure and the vibration reduction structure are arranged at the same time, and the supporting structure and the vibration reduction structure are respectively coordinated with the vibration isolation device, which solves the problem that the fastener vibration reduction device is relatively single and ensures the vibration reduction effect of the fastener vibration reduction device in rail transit.

[0016] Other features and advantages of the utility model will be described in the following description, and some of them will become obvious from the description, or be understood by implementing the embodiments of the utility model. The purpose and other advantages of the utility model can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall device of the utility model;

[0019] Figure 2 Based on Figure 1 A schematic diagram of the enlarged structure of region A;

[0020] Figure 3 It is a structural schematic diagram of the vibration isolation device of the utility model;

[0021] Figure 4 It is a schematic diagram of the support structure of the utility model;

[0022] Markings in the figure:

[0023] 1. Vibration isolation device; 2. First frame; 3. Second frame; 4. Elastic device; 5. Support structure; 6. Vibration reduction structure; 7. Iron pad; 8. Sleeper pad; 9. Anchor bolt; 10. Fixing structure; 11. Sleeper; 21. First pillar; 22. Second pillar; 23. Plate; 31. First bracket; 32. Second bracket; 33. Third pillar; 41. Connecting device; 42. Elastic structure; 51. Support column; 52. Support block; 61. First vibration reduction part; 62. Second vibration reduction part; 511. Support column protrusion; 521. Support protrusion. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] like Figures 1 to 3 As shown, the vibration isolation device 1 includes a first frame 2, a second frame 3 and an elastic device 4, the bottom of the first frame 2 passes through the top of the second frame 3, the bottom of the first frame 2 is connected to the top of the second frame 3 through the elastic device 4, the bottom of the second frame 3 is arranged on the sleeper 11, the elastic device 4 includes a connecting device 41 and an elastic structure 42, one end of the connecting device 41 is fixedly connected to the first frame 2, the other end of the connecting device 41 passes through the second frame 3, and the elastic structure 42 is fixedly connected to the first frame 2 and the second frame 3 respectively; and a supporting vibration reduction structure, the supporting vibration reduction structure includes a supporting structure 5 and a vibration reduction structure 6, the outer side of the supporting structure 5 is connected to the inner side of the vibration reduction structure 6, and the bottom of the vibration reduction structure 6 is connected to the top of the first frame 2.

[0027] The working principle of the vibration isolation device is as follows: when the train is running at high speed, after the force of the train is transmitted to the first frame 2, the first frame 2 moves downward, and then the elastic structure 42 is squeezed downward to absorb the vibration generated by the high-speed operation of the train. The first frame 2 moves downward, driving the connecting device 41 and the second frame 3 to move downward. At this time, the movement of the first frame 2, the second frame 3, and the connecting device 41 reduces some impact and vibration.

[0028] like Figure 2As shown, in order to clarify the specific structure of the first frame 2, the first frame 2 is provided with a first pillar 21, a second pillar 22 and a plate surface 23, the plate surface 23 is respectively connected to the bottom of the first pillar 21 and the second pillar 22, and the tops of the first pillar 21 and the second pillar 22 are both connected to the bottom of the vibration reduction structure 6.

[0029] In the present invention, the second frame 3 is provided with two first brackets 31, two second brackets 32 and four third pillars 33, the two first brackets 31 are arranged opposite to each other, the two second brackets 32 are arranged opposite to each other, the first bracket 31 and the second bracket 32 ​​are arranged adjacent to each other, the two ends of the two first brackets 31 are respectively fixedly connected with the ends of the two second brackets 32 to form a rectangle, and the four third pillars 33 are evenly distributed at the fixed connection between the first bracket 31 and the second bracket 32. Preferably, the second frame 3 is a hollow quadrangular frame.

[0030] In order to clarify the specific settings between the first frame 2, the second frame 3 and the elastic device 4, the cross section of the first bracket 31 is set in an "L" shape, wherein a limiting hole is provided on the horizontal part of the first bracket 31, and the connecting device 41 is set in a columnar shape, one end of the connecting device 41 is fixedly connected to the plate surface 23, and the other end of the connecting device 41 passes through the limiting hole, and the connecting device 41 limits the position between the first bracket 31 and the plate surface 23. The connecting device 41 is set to prevent the elastic structure 42 from rotating or deviating during movement.

[0031] In the present device, the support vibration reduction structure includes an anchor bolt 9, and the support structure 5 is provided with a first through hole, which is arranged at the outer wall of the anchor bolt 9, and the aperture of the first through hole is larger than the outer diameter of the anchor bolt 9. The support structure 5 is sleeved on the anchor bolt 9, and the bottom of the support structure 5 is arranged on the sleeper 11. Preferably, the wall thicknesses at both ends of the support structure 5 are unequal.

[0032] In order to clarify the setting of the vibration reduction structure 6, the vibration reduction structure 6 is provided with a second through hole, the second through hole is arranged at the outer wall of the support structure 5, and the aperture of the second through hole is larger than the outer diameter of the support structure 5. The second through hole sleeves the support structure 5, the bottom of the vibration reduction structure 6 is connected to the top of the first frame 2, the sum of the heights of the vibration reduction structure 6 and the vibration isolation device 1 is the first height, the height of the support structure 5 is the second height, and the first height and the second height are the same.

[0033] like Figure 4As shown, in order to clarify the specific structure of the support structure 5, the support structure 5 includes a support column 51 and a support block 52. The two ends of the support column 51 are provided with support column protrusions 511, and the support column protrusions 511 are provided with mounting grooves. The two ends of the support block 52 are provided with support protrusions 521, and the support protrusions 521 are relatively matched with the mounting grooves. In this structure, the support column 51 and the support block 52 are used to support and reduce vibration of the entire device, replacing the pad in the prior art, and reducing the stiffness of the fastener node.

[0034] In the present utility model, the support and vibration reduction structure includes a fixed structure 10, which is arranged on the top of the support structure 5, and a groove is provided at one end of the top of the support structure 5, and a convex ring is provided at one end of the bottom of the fixed structure 10, and the convex ring cooperates with the groove. The fixed structure 10 is sleeved on the top of the support structure 5 and the vibration reduction structure 6 to limit the positions of the support structure 5 and the vibration reduction structure 6, and the cooperation between the convex ring and the groove prevents the horizontal movement of the support structure 5.

[0035] In the present device, the supporting vibration reduction structure comprises an iron pad 7 and a sleeper pad 8, the top of the iron pad 7 is connected to the bottom of the vibration reduction structure 6, the bottom of the iron pad 7 is connected to the sleeper pad 8, the sleeper pad 8 is arranged on the sleeper 11, and the inner wall of the sleeper pad 8 is connected to the outer wall of the vibration isolation device 1. Preferably, the sleeper pad 8 is made of rubber.

[0036] Further, the vibration-damping structure 6 includes a first vibration-damping part 61 and a second vibration-damping part 62, the tops of the first vibration-damping part 61 and the second vibration-damping part 62 are both connected to the bottom of the fixed structure 10, the bottom of the first vibration-damping part 61 is connected to the first frame 2, the bottom of the second vibration-damping part 62 is connected to the top of the iron pad 7, and the height of the first vibration-damping part 61 is greater than the height of the second vibration-damping part 62. The vibration-damping structure 6 cooperates with the supporting structure 5 to limit the iron pad 7, reduce the lateral displacement of the rail head, and improve the stability of the fastener under low stiffness.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fastener vibration reduction device for rail transit, characterized in that: include: A vibration isolation device (1), the vibration isolation device (1) comprising a first frame (2), a second frame (3) and an elastic device (4), the bottom of the first frame (2) passing through the top of the second frame (3), the bottom of the first frame (2) being connected to the top of the second frame (3) via the elastic device (4), the bottom of the second frame (3) being arranged on a sleeper (11), the elastic device (4) comprising a connecting device (41) and an elastic structure (42), one end of the connecting device (41) being fixedly connected to the first frame (2), the other end of the connecting device (41) passing through the second frame (3), the elastic structure (42) being fixedly connected to the first frame (2) and the second frame (3) respectively; as well as A support vibration reduction structure, the support vibration reduction structure comprising a support structure (5) and a vibration reduction structure (6), the outer side of the support structure (5) is connected to the inner side of the vibration reduction structure (6), and the bottom of the vibration reduction structure (6) is connected to the top of the first frame (2).

2. The fastener vibration reduction device for rail transit according to claim 1, characterized in that: The first frame (2) is provided with a first pillar (21), a second pillar (22) and a plate surface (23); the plate surface (23) is respectively connected to the bottom of the first pillar (21) and the second pillar (22); the tops of the first pillar (21) and the second pillar (22) are both connected to the bottom of the vibration reduction structure (6).

3. The fastener vibration reduction device for rail transit according to claim 2, characterized in that: The second frame (3) is provided with two first brackets (31), two second brackets (32) and four third pillars (33); the two first brackets (31) are arranged opposite to each other, the two second brackets (32) are arranged opposite to each other, the first bracket (31) and the second bracket (32) are arranged adjacent to each other, the two ends of the two first brackets (31) are respectively fixedly connected to the ends of the two second brackets (32) to form a rectangle, and the four third pillars (33) are evenly distributed at the fixed connection between the first bracket (31) and the second bracket (32).

4. The fastener vibration reduction device for rail transit according to claim 3, characterized in that: The cross section of the first bracket (31) is set in an "L" shape, wherein a limiting hole is opened on the horizontal part of the first bracket (31), and the connecting device (41) is set in a columnar shape, one end of the connecting device (41) is fixedly connected to the plate surface (23), and the other end of the connecting device (41) passes through the limiting hole, and the connecting device (41) limits the position between the first bracket (31) and the plate surface (23).

5. The fastener vibration reduction device for rail transit according to claim 1, characterized in that: The support vibration reduction structure comprises an anchor bolt (9), the support structure (5) is provided with a first through hole, the first through hole is arranged on the outer wall of the anchor bolt (9), and the hole diameter of the first through hole is larger than the outer diameter of the anchor bolt (9).

6. The fastener vibration reduction device for rail transit according to claim 1, characterized in that: The vibration reduction structure (6) is provided with a second through hole, the second through hole is arranged on the outer wall of the support structure (5), and the diameter of the second through hole is larger than the outer diameter of the support structure (5).

7. The fastener vibration reduction device for rail transit according to claim 5, characterized in that: The support structure (5) comprises a support column (51) and a support block (52); support column protrusions (511) are provided at both ends of the support column (51); the support column protrusions (511) are provided with mounting grooves; support protrusions (521) are provided at both ends of the support block (52); the support protrusions (521) are matched with the mounting grooves.

8. The fastener vibration reduction device for rail transit according to claim 1, characterized in that: The support vibration reduction structure comprises a fixed structure (10), wherein the fixed structure (10) is arranged on the top of the support structure (5), a groove is provided at one end of the top of the support structure (5), and a convex ring is provided at one end of the bottom of the fixed structure (10), and the convex ring cooperates with the groove.

9. The fastener vibration reduction device for rail transit according to claim 8, characterized in that: The supporting vibration reduction structure comprises an iron pad (7) and a sleeper pad (8); the top of the iron pad (7) is connected to the bottom of the vibration reduction structure (6); the bottom of the iron pad (7) is connected to the sleeper pad (8); the sleeper pad (8) is arranged on the sleeper (11); and the inner wall of the sleeper pad (8) is connected to the outer wall of the vibration isolation device (1).

10. The fastener vibration reduction device for rail transit according to claim 9, characterized in that: The vibration damping structure (6) comprises a first vibration damping part (61) and a second vibration damping part (62); the tops of the first vibration damping part (61) and the second vibration damping part (62) are both connected to the bottom of the fixed structure (10); the bottom of the first vibration damping part (61) is connected to the first frame (2); the bottom of the second vibration damping part (62) is connected to the top of the iron pad (7); and the height of the first vibration damping part (61) is greater than the height of the second vibration damping part (62).

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