Large-resistance elastic sleeper

Abstract

The utility model discloses a large-resistance elastic sleeper which comprises a sleeper body, an under-sleeper pad is arranged at the bottom of the sleeper body, and the under-sleeper pad is connected with the sleeper body through a silk screen. The utility model provides a large-resistance elastic sleeper to solve the problems that a concrete sleeper in the prior art is poor in elasticity, small in resistance and prone to pulverization, and the purposes of optimizing the elasticity of the sleeper, improving the resistance of the sleeper and reducing pulverization of a ballast bed are achieved.

Description

Technical Field

[0001] The utility model relates to the field of rail transportation, in particular to a high-resistance elastic sleeper. Background Art

[0002] Sleepers are one of the important components of railway construction. During use, sleepers are affected by various factors, such as train loads and the natural environment. During the laying process, it is necessary to ensure the fit between the sleepers and the tracks to ensure the safety and operational efficiency of the railway. Concrete sleepers, which are currently the most widely used in railway lines, have the advantages of high bearing capacity, strong stability, and good line smoothness. However, they also have problems such as poor elasticity, which limit the safety and efficiency of railway transportation. Specifically, concrete sleepers in the prior art have at least the following shortcomings:

[0003] 1. The existing concrete sleeper structure has a large weight and poor elasticity. During the interaction between the wheel and the rail, the impact energy transmitted to the concrete sleeper is high, which causes the sleeper to be easily damaged such as cracking, affecting the use effect of the sleeper.

[0004] 2. Existing concrete sleepers used on ballasted trackbeds have poor stability, severe pulverization, and relatively small sleeper resistance.

[0005] In summary, it is necessary to optimize and improve the concrete sleepers in the prior art. Utility Model Content

[0006] The utility model provides a large-resistance elastic sleeper to solve the problems of poor elasticity, small resistance and easy pulverization of concrete sleepers in the prior art, and achieves the purpose of optimizing sleeper elasticity, increasing sleeper resistance and reducing roadbed pulverization.

[0007] The utility model is achieved through the following technical solutions:

[0008] A large-resistance elastic sleeper comprises a sleeper body. A sleeper pad is arranged at the bottom of the sleeper body. The sleeper pad is connected to the sleeper body through a wire mesh.

[0009] In response to the problems of poor elasticity, low resistance and easy pulverization of concrete sleepers in the prior art, the present invention proposes a high-resistance elastic sleeper, wherein the sleeper body is the prior art in this field. The present application sets a sleeper pad at the bottom of the sleeper body, and connects the sleeper pad and the sleeper body through a wire mesh. The present application can improve the elasticity and resistance of the sleeper through the setting of the sleeper pad, while improving the stability of the roadbed, playing a role in protecting the roadbed and reducing the pulverization of the roadbed; in addition, the present application realizes the connection between the sleeper pad and the sleeper body through the wire mesh. The wire mesh has good toughness and elasticity, which can further improve the elasticity of the sleeper and improve the rigidity of the roadbed, thereby effectively absorbing the vibration energy generated by the train operation, which is beneficial to reduce the deformation and sinking of the track and improve the stability of the track structure.

[0010] It should be noted that the silk screen in the present application may be a regular or irregular spatial mesh structure; when the silk screen is an irregular spatial mesh structure, it may be an artificially specified irregular mesh layout or a randomly formed mesh layout.

[0011] Furthermore, the under-sleeper pad is made of an elastic material. When the sleeper and ballast come into contact, the train load causes the ballast to embed into the pad, creating a tight fit and increasing the sleeper's resistance. Therefore, the under-sleeper pad, made of an elastic material, effectively improves the elasticity and resistance of the sleeper, thereby fully improving the rigidity of the trackbed and enhancing the vibration damping performance of the sleeper, further protecting the trackbed and reducing its pulverization.

[0012] The elastic material in this solution can be any existing elastic material available to those skilled in the art, including but not limited to rubber pads, silicone pads, polyurethane pads, nylon pads, etc.

[0013] Furthermore, the wire mesh is made of high molecular polymer, which can further improve the overall elasticity and resistance of the sleeper, help reduce the deformation and sinking of the track, make the track structure more stable, and reduce the frequency of roadbed cleaning.

[0014] The high molecular polymer in this solution can be any existing high molecular polymer material available to those skilled in the art, such as plastic, rubber, artificial fiber, etc.

[0015] Furthermore, the wire mesh is bonded to the sleeper pad and the sleeper body at the same time, thereby achieving a stable connection between the sleeper pad and the sleeper body through the wire mesh; the specific bonding process and the selection of adhesive are not specifically limited here, and any bonding process that can be achieved and any adhesive that can be selected by technical personnel in this field based on the existing technology can be applied to this solution.

[0016] Furthermore, the bottom end of the wire mesh is fixed inside the sleeper pad, and the top end of the wire mesh is fixed inside the sleeper body.

[0017] This solution uses the material of the under-sleeve pad itself as the adhesive / curing agent for the connection between the wire mesh and the under-sleeve pad; and the material of the under-sleeve pad itself as the adhesive / curing agent for the connection between the wire mesh and the sleeper body. Therefore, this solution fully ensures the structural integrity and stability of the high-resistance elastic sleeper of this application.

[0018] Furthermore, the invention is characterized in that the thickness of the under-sleeper pad is 7 to 12 mm. During research, the inventors of this invention discovered that if the thickness of the under-sleeper pad is too small, the effect on improving the elasticity and resistance of the sleeper is limited; if the thickness is too large, it is detrimental to the operational stability of the track structure. Therefore, the preferred thickness of the under-sleeper pad is 7 to 12 mm, and within this thickness range, the under-sleeper pad exhibits a good balance.

[0019] Furthermore, the height of the wire mesh outside the pillow pad is 3 to 5 mm. The wire mesh in this application is partially fixed inside the pillow pad and partially extends from above to the outside of the pillow pad. This solution stipulates that the height of the wire mesh outside the pillow pad is 3 to 5 mm. The wire mesh with a height of 3 to 5 mm is used to connect to the sleeper body.

[0020] Furthermore, during research, the inventors discovered that if the height of the wire mesh used to connect to the sleeper body is too low, the connection can be unstable; if the height of the wire mesh used to connect to the sleeper body is too high, it can interfere with the mechanical properties of the sleeper body itself. Therefore, the proposed solution specifies a height of 3-5 mm as the optimal height for the wire mesh to be exposed above the sleeper pad, achieving a good balance between connection stability and preventing interference with the sleeper body.

[0021] Furthermore, the coverage rate of the under-sleeper pad on the bottom surface of the sleeper body is 80% to 90%, that is, the projected area of ​​the under-sleeper pad on the bottom surface of the sleeper body accounts for 80% to 90% of the total area of ​​the bottom surface of the sleeper body. The under-sleeper pad in this application can cover a larger area of ​​the bottom of the sleeper body, and is more suitable for use in sleepers with larger bottom areas, which is beneficial to improving the resistance and stability of the sleeper.

[0022] Furthermore, the coverage rate of the silk screen on the top surface of the pillow pad is 60% to 70%, that is, the projected area of ​​the area where the silk screen is located on the top surface of the pillow pad accounts for 60% to 70% of the total area of ​​the top surface of the pillow pad; this arrangement is conducive to ensuring the integrity and structural stability of the present application.

[0023] Furthermore, the sleeper body is cast by concrete.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] 1. The utility model can improve the elasticity and resistance of the sleeper, and at the same time improve the stability of the roadbed, thereby protecting the roadbed and reducing roadbed pulverization.

[0026] 2. The utility model can improve the elasticity of the sleeper and the rigidity of the roadbed, thereby effectively absorbing the vibration energy generated by the train running, which is beneficial to reducing the deformation and sinking of the track and improving the stability of the track structure.

[0027] 3. The utility model helps to reduce the deformation and sinking of the track, making the track structure more stable.

[0028] 4. The utility model has good structural integrity and stability, which is beneficial to reducing the frequency of roadbed cleaning.

[0029] 5. In addition to meeting the operational requirements of ordinary passenger and freight railways, the utility model can also meet the operational requirements of ordinary heavy-load railways, high-speed railways, subways and light rail ballasted track lines, and has extremely strong adaptability and application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0031] Figure 1 It is an elevation view of a specific embodiment of the utility model;

[0032] Figure 2 It is a bottom view of a specific embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the end face of a sleeper according to a specific embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the screen and the pillow pad in a specific embodiment of the present invention.

[0035] Markings and corresponding parts names in the accompanying drawings:

[0036] 1- pillow pad, 2- silk screen. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the examples and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. In the description of the present application, it should be understood that the orientations or positional relationships indicated by terms such as "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0038] Example 1:

[0039] like Figures 1 to 4 The high-resistance elastic sleeper shown includes a sleeper body made of concrete, a sleeper pad 1 is provided at the bottom of the sleeper body, and the sleeper pad 1 is connected to the sleeper body through a wire mesh 2; the wire mesh 2 is bonded to the sleeper pad 1 and the sleeper body at the same time.

[0040] In this embodiment, the pillow pad 1 is made of elastic material, such as rubber, silicone, TPEE thermoplastic polyester elastomer or polyurethane.

[0041] In this embodiment, the screen 2 is made of high molecular polymer, such as polyethylene, nylon, etc.

[0042] In a more preferred embodiment:

[0043] The thickness of the pillow pad 1 is 7 to 12 mm, preferably 10 mm.

[0044] The height of the wire mesh 2 located at the outer portion of the pillow pad 1 is 3 to 5 mm, preferably 4 mm.

[0045] The coverage of the under-sleeper pad 1 on the bottom surface of the sleeper body is 80% to 90%, preferably 85%.

[0046] The coverage of the wire mesh 2 on the top surface of the pillow pad 1 is 60% to 70%, preferably 65%.

[0047] Example 2:

[0048] A high-resistance elastic sleeper, based on Example 1, the bottom end of the wire mesh 2 is fixed inside the sleeper pad 1, and the top end of the wire mesh 2 is fixed inside the sleeper body.

[0049] In this embodiment, the bottom surface of the sleeper body is in contact with the top surface of the pad 1 under the sleeper, and the wire mesh 2 is completely fixed inside the sleeper body and the pad 1 under the sleeper.

[0050] Example 3:

[0051] A method for preparing the high-resistance elastic sleeper described in Example 1 or 2:

[0052] First, prepare the pillow pad 1. In the process of preparing the pillow pad 1, the wire mesh 2 is partially embedded in the top surface of the pillow pad 1 in advance to obtain the following Figure 4 The pillow pad 1 with the wire mesh 2 is shown;

[0053] Prepare the sleeper body. Since the sleepers are all produced upside down, after pouring concrete into the mold, make the wire mesh 2 face downward and buckle the sleeper pad 1 with the wire mesh 2 on the top of the concrete and wait for it to solidify.

[0054] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

[0055] It should be noted that, in this document, terms such as "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In addition, the term "connected" as used herein, unless otherwise specified, may refer to direct connection or indirect connection via other components.

Claims

1. A high resistance elastic sleeper, comprising a sleeper body, characterized in that: A sleeper pad (1) is provided at the bottom of the sleeper body, and the sleeper pad (1) is connected to the sleeper body via a wire mesh (2).

2. The high resistance elastic sleeper according to claim 1, characterized in that: The pillow pad (1) is made of elastic material.

3. The high resistance elastic sleeper according to claim 1, characterized in that: The wire mesh (2) is made of high molecular polymer.

4. The high resistance elastic sleeper according to claim 1, characterized in that: The wire mesh (2) is bonded to the under-sleeper pad (1) and the sleeper body at the same time.

5. The high resistance elastic sleeper according to claim 1, characterized in that: The bottom end of the wire mesh (2) is fixed inside the sleeper pad (1), and the top end of the wire mesh (2) is fixed inside the sleeper body.

6. The high resistance elastic sleeper according to claim 1, characterized in that: The thickness of the pillow pad (1) is 7 to 12 mm.

7. The high resistance elastic sleeper according to claim 1, characterized in that: The height of the wire mesh (2) located on the outer portion of the pillow pad (1) is 3 to 5 mm.

8. The high resistance elastic sleeper according to claim 1, characterized in that: The coverage rate of the under-sleeper pad (1) on the bottom surface of the sleeper body is 80% to 90%.

9. The high resistance elastic sleeper according to claim 1, characterized in that: The coverage rate of the silk screen (2) on the top surface of the pillow pad (1) is 60% to 70%.

10. A high resistance elastic sleeper according to any one of claims 1 to 9, characterized in that: The sleeper body is formed by pouring concrete.

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