Grouting anti-vibration pad for track plate

Abstract

The utility model discloses a groutable vibration damping pad for a track board, which comprises a vibration damping pad body arranged at the bottom of a prefabricated track board, the vibration damping pad body comprises an elastic grouting container part and an elastic vibration damping part, and the elastic grouting container part comprises a grouting chamber arranged on the vibration damping pad body. The anti-vibration pad body is provided with grouting / exhaust ports communicated with the grouting cavity, the number of the grouting / exhaust ports can be properly adjusted according to the area of the anti-vibration pad, the anti-vibration pad body can be integrally formed or spliced in a split mode, and the anti-vibration pad can be preassembled on a prefabricated track plate in a factory. The anti-vibration pads and the prefabricated track plate can be bonded into a whole on the construction site, and the multiple anti-vibration pads are arranged in the length direction of the prefabricated track plate at intervals. By the adoption of the anti-vibration pad capable of being grouted, construction can be completed on site without other tedious construction operation steps, the construction efficiency of on-site operation is improved, and the purposes of low carbon, environmental protection and material saving are achieved.

Description

Technical Field

[0001] The utility model relates to the field of rail transportation, and particularly relates to a groutable vibration-damping pad for a track plate. Background Art

[0002] With the development of economy, people have higher and higher technical requirements for the vibration reduction performance of rail transit. In the existing technology, there is a method of adding an elastic vibration reduction pad under the track plate to improve the vibration reduction performance of rail transit. For example, the existing technology: CN210287982U- discloses a high-speed rail track vibration reduction pad template, including a base plate, a plurality of vibration reduction body forming holes are provided on the base plate, and guard plates protruding from the base plate are provided on both sides of the base plate. The high-speed rail track vibration reduction pad template is used for injection molding of large-size rubber high-speed rail track vibration reduction pads, which can replace the CA mortar filling layer to perform the vibration reduction function. The base plate is the structural main body of the high-speed rail track vibration reduction pad template, and the guard plate and the base plate form a cavity. The shape of the high-speed rail track vibration reduction pad produced in large quantities by injection molding is complementary to the cavity formed by the guard plate and the base plate, that is, the flat part of the base plate corresponds to the base of the high-speed rail track vibration reduction pad, and the vibration reduction body forming hole generates a vibration reduction body protruding from the base, and the vibration reduction body contacts and supports the track plate of the high-speed rail track for energy absorption and vibration reduction.

[0003] The above products have the following disadvantages:

[0004] 1) The vibration damping pads for track plates on the market are generally fully paved, which consumes a lot of materials;

[0005] 2) Traditional vibration damping pads and grouting bags are usually split structures, which increases the trouble of on-site operation and reduces the reliability of on-site operation;

[0006] 3) Traditional grouting bags are usually made of geotextiles, which have low strength, are easily damaged, and have relatively low reliability;

[0007] 4) The construction method of pouring mortar on site is adopted to adjust the flatness or height of the track plate. On the one hand, it requires on-site formwork, anti-leakage treatment and other processes, which takes a long construction period and is troublesome; on the other hand, it consumes a lot of grouting materials, which is costly and not environmentally friendly; furthermore, pouring mortar on site is prone to leakage, and the mortar flows into the vibration damping pad layer, resulting in reduced elasticity of the vibration damping pad, attenuation of vibration damping performance, and easy wear, which reduces the service life. Utility Model Content

[0008] The purpose of the utility model is to overcome the problems existing in the prior art and to provide a groutable vibration-damping pad for a track plate, which is preinstalled on a prefabricated track plate in a factory and does not require other cumbersome construction steps on site. After the prefabricated track plate is laid in place according to the design, slurry is injected into the elastic grouting container for leveling according to site requirements to complete the construction work. The utility model is realized through the following technical scheme: a groutable vibration-damping pad for a track plate, comprising a vibration-damping pad body arranged at the bottom of a prefabricated track plate, the vibration-damping pad body comprising an elastic grouting container portion and an elastic vibration-damping portion, the elastic grouting container portion comprising a grouting chamber opened on the vibration-damping pad body, a grouting / exhaust port connected to the grouting chamber being arranged on the vibration-damping pad body, the number of grouting / exhaust ports being appropriately adjusted according to the area of ​​the vibration-damping pad, the grouting / exhaust port being arranged at the edge position on one side or both sides of the elastic grouting container portion, the vibration-damping pad body being preassembled with the prefabricated track plate, and being preinstalled on the prefabricated track plate in a factory according to working conditions or being bonded to the prefabricated track plate at a construction site, and a plurality of vibration-damping pad bodies being arranged at intervals along the length direction of the prefabricated track plate.

[0009] In order to further optimize the utility model, the following technical solutions can be preferably used:

[0010] Preferably, the elastic vibration damping part is a vibration damping plate, the elastic grouting container part is a flat bag, and the vibration damping plate and the elastic grouting container part are sequentially stacked and arranged at the bottom of the prefabricated track slab.

[0011] Preferably, the elastic grouting container portion and the elastic vibration damping portion are integrally formed to reduce parts.

[0012] Preferably, the elastic grouting container portion and the elastic vibration-damping portion are integrally arranged, and the two can be connected by bonding.

[0013] Preferably, the elastic vibration damping portion is arranged on one or both sides of the upper and lower side surfaces of the elastic grouting container portion.

[0014] Preferably, the elastic vibration damping portion is wrapped around the outer periphery of the elastic grouting container portion to form a grouting chamber.

[0015] Preferably, the vibration damping pad is made of rubber or polyurethane plate, the stiffness of a single vibration damping pad distributed per linear meter along the length direction of the track plate is about 10 to 40 kN / mm, and the thickness of the vibration damping pad layer ranges from 10 to 40 mm; the grouting chamber is made of rubber or polyurethane elastic material, the wall thickness inside the grouting chamber is 1 to 5 mm, and the clearance thickness inside the chamber ranges from about 10 to 100 mm; the surface where the vibration damping pad and grouting chamber combination is bonded to the track plate is a rough surface or a furred surface.

[0016] The utility model has the following effects:

[0017] 1. Modular product design: According to the stress conditions of the track plate and under the condition of ensuring the safety of the line structure, the vibration damping pads are laid in spots or blocks to effectively reduce the amount of vibration damping pads used. The appropriate laying method and laying quantity can be selected according to needs.

[0018] 2. Integrated pre-installation design: The vibration damping pad and track plate leveling system in this product are designed as an integrated whole, and the vibration damping pad, leveling system and track plate are pre-assembled in the factory by bonding and other methods, which improves construction accuracy, facilitates on-site construction, and effectively improves construction efficiency.

[0019] 3. Self-adjusting design: This product can be used for grouting vibration damping pads with its own elastic grouting container. No other cumbersome construction steps are required on site. Grouting and leveling can be carried out directly after the track slab is laid. The grouting container has excellent sealing properties and can adapt to complex working conditions, effectively avoiding the occurrence of grout leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the overall product in this embodiment 1;

[0021] Figure 2 It is a side view of the overall product in this embodiment 1;

[0022] Figure 3 This is the front view of the overall product in this embodiment 1;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the vibration damping pad body;

[0024] Figure 5 is a schematic structural diagram of the elastic grouting container portion in this embodiment 2;

[0025] Figure 6 is a schematic structural diagram of the elastic grouting container portion in this embodiment 3;

[0026] Figure 7 This is a schematic structural diagram of the first elastic grouting container portion in Embodiment 4;

[0027] Figure 8 is a schematic structural diagram of the second elastic grouting container portion in this embodiment 4;

[0028] Fig. 9 This is a schematic diagram of the structure of the elastic grouting container part in this embodiment 5.

[0029] Fig.10 This is a schematic diagram of the structure of the elastic grouting container part in this embodiment 6.

[0030] in:

[0031] 1-prefabricated track slab; 2-elastic grouting container part; 3-elastic vibration damping part; 4-grouting / exhaust port; 5-grouting chamber. DETAILED DESCRIPTION

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Embodiment 1:

[0035] like Figures 1 to 4 A groutable vibration damping pad for a track plate comprises a vibration damping pad body arranged at the bottom of a prefabricated track plate, the vibration damping pad body comprising an elastic grouting container portion 2 and an elastic vibration damping portion 3, the elastic grouting container portion comprising a grouting chamber opened on the vibration damping pad body, a grouting / exhaust port 4 connected to the grouting chamber is arranged on the vibration damping pad body, the grouting chamber 5 is filled with a self-adjusting filling material (such as concrete), wherein the grouting / exhaust port 4 is arranged at a single side or both side edge position of the elastic grouting container portion 2, and the grouting / exhaust port is used for grouting and exhausting the air in the grouting chamber. Specifically, in this embodiment, there are separate pipelines corresponding to the positions of the grouting / exhaust ports 4 and they are arranged in an upward bending manner.

[0036] The elastic vibration damping part 3 is a vibration damping plate, the elastic grouting container part 2 is a flat bag, and the vibration damping plate and the elastic grouting container part are sequentially stacked and installed at the bottom of the prefabricated track slab.

[0037] Among them, multiple vibration-damping pad bodies are arranged at intervals along the length direction of the prefabricated track plate 1. According to the stress conditions of the track plate and under the condition of meeting the safety of the line structure, the vibration-damping pads are laid in the form of points or blocks, which effectively reduces the amount of vibration-damping pads used. The appropriate laying method and laying quantity are selected according to the needs.

[0038] The vibration-damping pad body and the prefabricated track plate 1 are preassembled into one body, which is convenient for construction.

[0039] In this embodiment, the elastic vibration-damping part 3 is designed as a double-layer vibration-damping pad, which is arranged on the upper and lower surfaces of the elastic grouting container part 2 respectively, so as to improve the double-sided vibration-damping effect, and the two are designed as an integrated molding.

[0040] The vibration damping pad is made of rubber or polyurethane plate, and the stiffness of a single vibration damping pad per meter along the length direction of the track plate is about 10 to 40 kN / mm, and the thickness of the vibration damping pad layer ranges from 10 to 40 mm; the grouting chamber is made of rubber or polyurethane elastic material, the wall thickness inside the grouting chamber is 1 to 5 mm, and the clearance thickness inside the chamber ranges from about 10 to 100 mm; the surface where the vibration damping pad and grouting chamber combination are bonded to the track plate is a rough surface or a furred surface.

[0041] Embodiment 2:

[0042] The difference between this embodiment and embodiment 1 is that the arrangement and connection form of the elastic vibration damping part 3 (vibration damping pad) and the elastic grouting container part 2 are different. The following mainly describes the details of this part. In this embodiment, the vibration damping pad is designed as a single layer, wherein the elastic vibration damping part 3 (vibration damping pad) is designed below the elastic grouting container part, and the two are designed separately and bonded.

[0043] Embodiment 3:

[0044] The difference between this embodiment and embodiment 1 is that the arrangement and connection form of the elastic vibration damping part 3 (vibration damping pad) and the elastic grouting container part 2 are different. The following mainly describes the details of this part. In this embodiment, the vibration damping pad is designed to be a single layer, wherein the elastic vibration damping part 3 (vibration damping pad) is designed above the elastic grouting container part, and the elastic grouting container part is placed at the bottom, and the two are designed separately and bonded.

[0045] Embodiment 4:

[0046] The difference between this embodiment and embodiment 1 is that the arrangement and connection form of the elastic vibration damping part 3 (vibration damping pad) and the elastic grouting container part 2 are different. The following mainly describes the details of this part, wherein the elastic grouting container part and the elastic vibration damping pad are designed as an integrated whole, and the elastic vibration damping pad is designed as a double layer, that is, the elastic vibration damping part 3 is wrapped around the upper and lower surfaces of the outer periphery of the elastic grouting container part 2; or the elastic vibration damping part is completely wrapped around the outer periphery of the elastic grouting container part to form a grouting chamber 5, that is, the upper and lower surfaces of the elastic grouting container part serve as the elastic vibration damping part.

[0047] Embodiment 5:

[0048] The difference between this embodiment and embodiment 1 is that the arrangement and connection form of the elastic vibration damping part 3 (vibration damping pad) and the elastic grouting container part 2 are different. The following mainly describes the details of this part. In this embodiment, the vibration damping pad is designed to be a single layer, wherein the elastic vibration damping part 3 (vibration damping pad) is designed below the elastic grouting container part, and the elastic grouting container part is placed at the top, and the two are integrated into a design.

[0049] Embodiment 6:

[0050] The difference between this embodiment and embodiment 1 is that the arrangement and connection form of the elastic vibration damping part 3 (vibration damping pad) and the elastic grouting container part 2 are different. The following mainly describes the details of this part. In this embodiment, the vibration damping pad is designed to be a single layer, wherein the elastic vibration damping part 3 (vibration damping pad) is designed above the elastic grouting container part, and the elastic grouting container part is placed at the bottom, and the two are designed as an integrated molding.

[0051] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A groutable vibration damping pad for a track slab, characterized in that: The invention comprises a vibration-damping pad body arranged at the bottom of the prefabricated track plate, wherein the vibration-damping pad body comprises an elastic grouting container part and an elastic vibration-damping part, wherein the elastic grouting container part comprises a grouting chamber opened on the vibration-damping pad body, and a grouting / exhaust port connected to the grouting chamber is arranged on the vibration-damping pad body, wherein the number of the grouting / exhaust ports can be appropriately adjusted according to the area of ​​the vibration-damping pad, wherein the grouting / exhaust port is arranged at the inner / outer edge position of the elastic grouting container part, wherein the vibration-damping pad body is preassembled with the prefabricated track plate, and wherein a plurality of the vibration-damping pad bodies are arranged at intervals along the length direction of the prefabricated track plate.

2. The groutable vibration damping pad for track slab according to claim 1, characterized in that: The elastic vibration damping part is a vibration damping plate, the elastic grouting container part is a flat bag, and the vibration damping plate and the elastic grouting container part are sequentially stacked and arranged at the bottom of the prefabricated track plate.

3. The groutable vibration damping pad for track slab according to claim 2, characterized in that: The elastic grouting container portion and the elastic vibration damping portion are integrally formed.

4. The groutable vibration damping pad for track slab according to claim 2, characterized in that: The elastic grouting container part and the elastic vibration damping part are integrally arranged.

5. The groutable vibration damping pad for track slab according to claim 1, characterized in that: The elastic vibration damping part is arranged on one or both sides of the upper and lower side surfaces of the elastic grouting container part, wherein the elastic vibration damping part and the elastic grouting container part are formed separately and then bonded.

6. The groutable vibration damping pad for track slab according to claim 1, characterized in that: The elastic vibration damping part is arranged on one or both sides of the upper and lower side surfaces of the elastic grouting container part, wherein the elastic vibration damping part and the elastic grouting container part are integrally formed.

7. A groutable vibration damping pad for a track slab according to any one of claims 3 or 4, characterized in that: The elastic vibration damping part is wrapped around the outer periphery of the elastic grouting container part to form a grouting chamber.

8. The groutable vibration damping pad for track slab according to claim 1, characterized in that: The vibration damping pad is made of rubber or polyurethane plate, and the stiffness of a single vibration damping pad distributed per meter along the length direction of the track plate is about 10 to 40 kN / mm, and the thickness of the vibration damping pad layer ranges from 10 to 40 mm; the grouting chamber is made of rubber or polyurethane elastic material, the wall thickness inside the grouting chamber is 1 to 5 mm, and the clearance thickness inside the chamber ranges from about 10 to 100 mm; the surface where the vibration damping pad and grouting chamber combination is bonded to the track plate is a rough surface or a furred surface.

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