Environment-friendly sound-absorbing ballast cover plate and ballast track structure

Abstract

The utility model belongs to the field of railway ballast cover plates, in particular to an environment-friendly sound-absorbing railway ballast cover plate and a ballast track structure, which comprise a plate body, a plurality of load-bearing steel bars are uniformly distributed in the plate body along the length direction of the plate body, a plurality of stirrups are uniformly distributed on the outer surfaces of the load-bearing steel bars, and a plurality of square areas are formed between the load-bearing steel bars and the stirrups. Noise generated by wheels and rails in the running process of a train can be transmitted to the railway ballast layer to be adsorbed through the arranged plate body and the sound absorption holes, the railway ballast layer can be sealed through the arranged plate body, when sound waves of the railway ballast layer are transmitted into the sound absorption holes of the plate body from the lower portion, the sound waves can be reflected in the sound absorption holes for multiple times, and the sound absorption effect is improved. According to the utility model, the energy of sound waves is consumed, the effect of absorbing noise is achieved, and additional strength and rigidity can be provided for the plate body through the arranged load-bearing steel bars and stirrups, so that stress caused by impact or other external loads can be resisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to ballast cover plate technical field, concretely is a kind of environment-friendly sound-absorbing ballast cover plate and ballast track structure. BACKGROUND

[0002] Early construction's passenger dedicated line, arrival and departure line of high-speed railway and in coal-based freight railway, heavy load and special line railway tunnel all adopt wide sleeper ballast track, wide sleeper ballast track appearance is beautiful, can play a certain degree of protection ballast to avoid ballast dirty effect, and ballast track often will be provided with cover plate.

[0003] Existing ballast cover plate is generally made of sound-absorbing material, but the attraction effect of cover plate depends on sound-absorbing material itself, and the overall sound-absorbing effect is still poor, so we propose a kind of environment-friendly sound-absorbing ballast cover plate and ballast track structure. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of environment-friendly sound-absorbing ballast cover plate and ballast track structure, can consume the energy of sound wave, reach the effect of absorbing noise.

[0005] Therefore, the technical scheme adopted by the utility model is as follows:

[0006] A kind of environment-friendly sound-absorbing ballast cover plate, including plate body, the plate body inside is evenly arranged with multiple stress reinforcement along plate body length direction, the outer surface of multiple stress reinforcement is evenly arranged with multiple stirrups, and multiple square areas are formed between stress reinforcement and stirrup;

[0007] Multiple evenly arranged sound-absorbing holes are arranged in the inside of the plate body, the sound-absorbing hole is located in square area, and the bottom opening of sound-absorbing hole is greater than the top opening, when sound wave is transmitted into sound-absorbing hole from below, sound wave will be reflected multiple times in sound-absorbing hole.

[0008] Based on the above technical scheme, its use principle and generated technical effect are as follows:

[0009] Through the plate body and sound-absorbing hole set, the noise generated by train wheel and rail during train running can be conducted to ballast layer adsorption, and the plate body set can be used to close ballast layer, when the sound wave of ballast layer is transmitted into the sound-absorbing hole of plate body from below, the sound wave will form multiple reflections in sound-absorbing hole, so as to consume the energy of sound wave, reach the effect of absorbing noise, and the stress reinforcement and stirrup set can provide additional strength and rigidity for plate body to resist stress caused by impact or other external load, in addition, stress reinforcement and stirrup can ensure that plate body remains its shape and position unchanged while bearing external load, so as to ensure its good sound-absorbing performance.

[0010] The utility model discloses in a preferable example can be further configured as: the multiple stress reinforcement is along the even distribution of plate body width direction.

[0011] The utility model discloses in a preferable example can be further configured as: the stirrup is close to the bottom end opening of sound absorption hole relative stress reinforcement.

[0012] The utility model discloses in a preferable example can be further configured as: the sound absorption hole inboard is smooth transition.

[0013] The utility model discloses in a preferable example can be further configured as: the plate body length is 500-1500mm, and the width is 300-800mm, and the thickness is 40mm-80mm.

[0014] The utility model discloses in a preferable example can be further configured as: the plate body adopts cement base composite material to be made, and is provided with 3mm chamfer in the four corners of plate body top surface.

[0015] The utility model discloses in a preferable example can be further configured as: stress reinforcement is 15-30mm in the vertical direction with the plate body bottom distance, and stress reinforcement and stirrup end distance plate body side are not less than 20mm.

[0016] The utility model discloses in a preferable example can be further configured as: the top end diameter of sound absorption hole is 30-50mm, and the bottom end diameter is 20-35mm.

[0017] The utility model discloses in a preferable example can be further configured as: the interval between two adjacent sound absorption holes is 60-150mm.

[0018] According to another aspect of the utility model, the utility model provides a ballast track structure, including above -mentioned one kind of environmental protection sound absorption ballast cover plate.

[0019] The following explains the nouns, conjunctions or adjective parts involved in the above technical solutions:

[0020] Fixed connection refers to the connection of parts or components after being fixed without any relative movement. It is divided into two kinds of detachable connection and non-detachable connection.

[0021] (1) detachable connection is to fix the parts together by using screw, spline, wedge pin, etc. This connection mode can be disassembled during maintenance, and the parts will not be damaged. But the specifications of the connecting parts used must be correct (such as the length of bolt, key, wedge pin), and be fastened properly.

[0022] (2) The non-detachable connection mainly refers to welding, riveting and tenon connection, etc. Since the parts cannot be disassembled by forging, sawing or oxygen cutting for maintenance or replacement, the parts cannot be used twice. Meanwhile, the process quality, technical detection and remedial measures (such as correction, polishing, etc.) should be paid attention to during the connection;

[0023] The movable connection refers to the connection of parts or components after being fixed, which has relative movement.

[0024] The above technical scheme of the utility model has the following beneficial technical effects:

[0025] 1. In the utility model, the noise generated by the train wheels and the rails during the train running can be conducted to the ballast layer for adsorption through the plate body and the sound absorption hole, and the plate body can be used to close the ballast layer. When the sound wave of the ballast layer is transmitted from below into the sound absorption hole of the plate body, the sound wave will form multiple reflections in the sound absorption hole, thereby consuming the energy of the sound wave, and achieving the effect of absorbing noise.

[0026] 2. In the utility model, the stress reinforcement and the stirrup can provide additional strength and stiffness for the plate body to resist stress caused by impact or other external loads. In addition, the stress reinforcement and the stirrup can ensure that the plate body maintains its shape and position unchanged while bearing external loads, thereby ensuring its good sound absorption performance. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic view of the overall structure of the utility model;

[0028] Figure 2 It is a three-dimensional schematic view of the internal structure of the plate body of the utility model;

[0029] Figure 3 It is a schematic view of the layout position of the stress reinforcement structure of the utility model;

[0030] Figure 4 It is a cross-sectional schematic view of the plate body structure of the utility model.

[0031] REFERENCE SIGNS:

[0032] 1, plate body; 2, stress reinforcement; 3, stirrup; 4, sound absorption hole. DETAILED DESCRIPTION

[0033] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features in the embodiments can be combined with each other.

[0034] Example 1:

[0035] Based on the concept of this application, combined with Figures 1 to 4 This paper describes an embodiment of an environmentally friendly sound-absorbing ballast cover for railway ballast. Specifically, the environmentally friendly sound-absorbing ballast cover is constructed as an integral structure, comprising three components: a plate body 1, reinforcing steel bars 2, and sound-absorbing holes 4. Through the plate body 1 and the sound-absorbing holes 4, noise generated by the wheels and rails during train operation can be conducted to the ballast layer for absorption. The plate body 1 effectively seals the ballast layer. When sound waves from the ballast layer enter the sound-absorbing holes 4 from below, the sound waves undergo multiple reflections within the holes 4, thereby dissipating the energy of the sound waves and achieving noise absorption. Furthermore, the reinforcing steel bars 2 and stirrups 3 provide additional strength and rigidity to the plate body 1 to resist stress caused by impacts or other external loads.

[0036] Combination Figures 1-4 As shown, the present invention provides an environmentally friendly sound-absorbing ballast cover plate, including a plate body 1. Multiple reinforcing bars 2 are evenly distributed inside the plate body 1 along the length direction of the plate body 1. Multiple stirrups 3 are evenly distributed on the outer surface of the multiple reinforcing bars 2, and several square areas are formed between the reinforcing bars 2 and the stirrups 3.

[0037] The interior of the plate 1 has multiple evenly arranged sound-absorbing holes 4. The sound-absorbing holes 4 are located in a square area, and the bottom opening of the sound-absorbing hole 4 is larger than the top opening. When the sound wave enters the sound-absorbing hole 4 from below, the sound wave will be reflected multiple times in the sound-absorbing hole 4.

[0038] Regarding the technical solution of this embodiment, the plate 1 is made of high-strength composite cement-based material, which has high strength and durability, and good compressive and tensile strength, which can ensure the structure and stability of the sound-absorbing cover plate. The cover plate is a porous plate structure component, the plate 1 is a cuboid with a length of 500-1500mm, a width of 300-800mm, and a thickness of 40mm-80mm.

[0039] Furthermore, a 3mm chamfer is provided at the corners of the top surface of the cover plate. The chamfer can generate a larger sound wave amplitude when the sound enters the sound-absorbing cover plate, thereby improving the sound absorption efficiency of the sound-absorbing cover plate.

[0040] The bottom opening of the sound-absorbing hole 4 is larger than the top opening, so its shape can be set as a frustum or a pyramid. Regarding the technical solution of this embodiment, such as... Figure 4 As shown, the sound-absorbing hole 4 is shaped like a frustum, with a smooth transition on the inner surface. The top diameter of the sound-absorbing hole 4 is 30-50mm, and the bottom diameter is 20-35mm. The distance between two adjacent holes is 60-150mm. By using the frustum-shaped sound-absorbing hole 4, sound waves can be quickly absorbed when entering the plate 1, thereby effectively controlling noise diffusion. Specifically, when sound waves enter the plate 1 from below, the frustum-shaped structure design makes the sound waves need to overcome greater resistance when passing through the sound-absorbing hole 4, causing the sound waves to be reflected multiple times within the sound-absorbing hole 4, thereby consuming the energy of the sound waves and achieving the effect of absorbing noise. Furthermore, the larger diameter at the bottom of the sound-absorbing hole 4 is also conducive to the rapid introduction and concentrated absorption of sound waves.

[0041] In this embodiment, the sound-absorbing hole 4 is shaped like a frustum. In other embodiments, it can also be shaped like a truncated pyramid. It should be noted that any modification to the size and shape of the sound-absorbing hole 4 based on the technical solution of this embodiment is also within the protection scope of this embodiment.

[0042] In this embodiment, multiple reinforcing bars 2 are evenly distributed along the width of the plate 1. The stirrups 3 open at the bottom of the reinforcing bars 2 near the sound-absorbing holes 4. The reinforcing bars 2 are 15-30mm away from the bottom of the plate 1 in the vertical direction. The ends of the reinforcing bars 2 and the stirrups 3 are not less than 20mm away from the side of the plate 1. The distance between two adjacent reinforcing bars 2 is 60-150mm, and the distance between two adjacent stirrups 3 is 60-150mm. The reinforcing bars 2 and the stirrups 3 can provide additional strength and rigidity to the plate 1 to resist stress caused by impact or other external loads. In addition, the reinforcing bars 2 and the stirrups 3 can ensure that the plate 1 maintains its shape and position while bearing external loads, thereby ensuring its good sound absorption performance.

[0043] In addition, the placement of the reinforcing bars 2 and stirrups 3 also helps to improve the efficiency of the sound-absorbing cover plate. Since the reinforcing bars 2 are located at the bottom of the sound-absorbing cover plate, they can better support the entire structure and provide additional resistance to resist the stress caused by the compression of the sound-absorbing material. The stirrups 3 can provide more uniform restraint to ensure that the sound-absorbing cover plate will not deform excessively due to load in a certain direction.

[0044] Specifically, the technical scheme of the embodiment can conduct the noise generated by the train wheels and the rails during the train running to the ballast layer for adsorption through the plate body 1 and the sound absorption hole 4, the plate body 1 can close the ballast layer, when the sound wave of the ballast layer is transmitted from below into the sound absorption hole 4 of the plate body 1, the sound wave will form multiple reflections in the sound absorption hole 4, thereby consuming the energy of the sound wave, achieving the effect of absorbing noise, and the stress reinforcement bars 2 and the stirrups 3 can provide additional strength and rigidity for the plate body 1 to resist the stress caused by the impact or other external loads, in addition, the stress reinforcement bars 2 and the stirrups 3 can ensure that the plate body 1 remains unchanged in shape and position while bearing external loads, thereby ensuring its good sound absorption performance.

[0045] The environmental protection sound absorption ballast cover plate provided by the utility model will be further described below in combination with the drawings and embodiments.

[0046] The environmental protection sound absorption ballast cover plate comprises a plate body 1, a plurality of stress reinforcement bars 2 are uniformly arranged inside the plate body 1 along the length direction of the plate body 1, a plurality of stirrups 3 are uniformly arranged on the outer surfaces of the stress reinforcement bars 2, and a plurality of square areas are formed between the stress reinforcement bars 2 and the stirrups 3.

[0047] A plurality of sound absorption holes 4 are arranged in the plate body 1, the sound absorption holes 4 are located in the square areas, and the bottom opening of the sound absorption hole 4 is larger than the top opening, when the sound wave is transmitted from below into the sound absorption hole 4, the sound wave will be reflected multiple times in the sound absorption hole 4.

[0048] Embodiment two:

[0049] According to another aspect of the utility model, the utility model provides a ballast track structure which comprises the environmental protection sound absorption ballast cover plate.

[0050] The working principle and use process of the utility model are as follows: the plate body 1 and the sound absorption hole 4 can conduct the noise generated by the train wheels and the rails during the train running to the ballast layer for adsorption, the plate body 1 can close the ballast layer, when the sound wave of the ballast layer is transmitted from below into the sound absorption hole 4 of the plate body 1, the sound wave will form multiple reflections in the sound absorption hole 4, thereby consuming the energy of the sound wave, achieving the effect of absorbing noise, and the stress reinforcement bars 2 and the stirrups 3 can provide additional strength and rigidity for the plate body 1 to resist the stress caused by the impact or other external loads, in addition, the stress reinforcement bars 2 and the stirrups 3 can ensure that the plate body 1 remains unchanged in shape and position while bearing external loads, thereby ensuring its good sound absorption performance.

[0051] In the present application, the term "a plurality of" means two or more, unless otherwise expressly specified. The term "and / or" as used herein encompasses all possibilities of combinations of one or more relevant items. The terms "mounting", "connected", "connecting", "fixed", and the like, should be interpreted broadly, for example, "connected" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through intermediate media. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] It should be noted that when an element is referred to as being "mounted", "attached", "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0053] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like, means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An environmentally friendly sound absorbing ballast cover plate comprising a plate body (1), characterized in that, The plate body (1) is internally provided with a plurality of stress reinforcing bars (2) along the length direction of the plate body (1), the outer surfaces of the plurality of stress reinforcing bars (2) are uniformly provided with a plurality of stirrups (3), and the stress reinforcing bars (2) and the stirrups (3) are wrapped to form a square region; The plate body (1) is internally provided with sound absorption holes (4) penetrating the plate body (1), at least one sound absorption hole (4) exists in the square region, the inner wall of the sound absorption hole (4) is smooth, and the bottom opening of the sound absorption hole (4) is larger than the top opening; when sound waves are transmitted into the sound absorption hole (4) from below, the sound waves will be reflected multiple times in the sound absorption hole (4).

2. The environmentally friendly sound absorbing ballast cover plate according to claim 1, wherein, The plurality of stress reinforcing bars (2) are uniformly arranged along the width direction of the plate body (1).

3. The environmentally friendly sound absorbing ballast cover plate according to claim 2, characterized in that, The stirrup (3) is close to the bottom opening of the sound absorption hole (4) relative to the stress reinforcing bar (2).

4. The environmentally friendly sound absorbing ballast cover plate according to claim 3, characterized in that, The inner side surface of the sound absorption hole (4) is smooth.

5. The environmentally friendly sound absorbing ballast cover plate according to claim 3, characterized in that, The length of the plate body (1) is 500-1500mm, the width is 300-800mm, and the thickness is 40-80mm.

6. An environmentally friendly sound absorbing ballast cover according to claim 5, characterized in that, The plate body (1) is made of cement-based composite material, and a 3mm chamfer is arranged at the corner of the top surface of the plate body (1).

7. The environmentally friendly sound absorbing ballast cover plate according to claim 5, characterized in that, The stress reinforcing bar (2) is 15-30mm away from the bottom of the plate body (1) in the vertical direction, and the distance between the end of the stress reinforcing bar (2) and the stirrup (3) and the side edge of the plate body (1) is not less than 20mm.

8. The environmentally friendly sound absorbing ballast cover plate according to claim 7, characterized in that, The top end diameter of the sound absorption hole (4) is 30-50mm, and the bottom end diameter is 20-35mm.

9. The environmentally friendly ballast cover plate according to claim 8, wherein, The distance between the adjacent two sound absorption holes (4) is 60-150mm.

10. A ballasted track structure, characterized in that An environmentally-friendly sound absorption ballast cover plate comprising any one of claims 1-9.

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