A railway bridge sleeper assembly

Abstract

This utility model discloses a railway bridge sleeper assembly, relating to the field of road, railway, or bridge construction technology. The railway bridge sleeper assembly includes a sleeper body, with first fixing blocks fixedly connected to both the left and right sides of the sleeper body. Second buffer pads are fixedly connected to the lower sides of the sleeper body and the two first fixing blocks. Two first bolts are installed on the upper sides of each of the two first fixing blocks. Two rail grooves are formed on the upper side of the sleeper body, and two rails are installed on the upper side of the sleeper body. Second fixing blocks are fixedly connected to the front and rear sides of each of the two rails. A shock-absorbing connection mechanism is provided at each of the two rail grooves. In this way, a shock-absorbing device can be installed on the sleeper, thereby absorbing and weakening the vibrations and impacts generated by train travel, thus reducing the impact of vibration and impact on the connecting components, preventing loosening and damage, and improving the stability and safety of the railway.

Description

Technical Field

[0001] This utility model relates to the field of road, railway or bridge construction technology, specifically a railway bridge sleeper assembly. Background Technology

[0002] Railway bridges are special engineering structures built when railway lines cross natural or man-made obstacles. They are an indispensable and key component of railway transportation networks. Their core functions are to ensure the continuity and smoothness of railway lines, enabling trains to cross obstacles safely and efficiently, while also bearing the train load and transferring it to the foundation. The sleeper-rail assembly is an important part of the railway bridge track structure, mainly composed of sleepers, rails, and related connecting components. It is used to support and fix the rails, ensuring that trains pass safely and smoothly across the bridge.

[0003] During the operation of railway bridges, train travel generates vibrations and impacts. Existing sleeper rail components have limited shock absorption effects. Although there are crushed stone materials for cushioning, long-term vibration and impact can easily cause sleepers, fasteners and other components to loosen and be damaged, affecting the stability and safety of the railway, increasing maintenance costs and safety hazards. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a railway bridge sleeper assembly that has the function of setting up a shock absorption device on the sleeper, so that the vibration and impact generated by the train will be absorbed and weakened, thereby reducing the impact of vibration and impact on the connecting parts, avoiding loosening and damage, and improving the stability and safety of the railway.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a railway bridge sleeper assembly, comprising a sleeper body, with first fixing blocks fixedly connected to both the left and right sides of the sleeper body, and second buffer pads fixedly connected to the lower sides of the sleeper body and the two first fixing blocks.

[0006] Two rail grooves are opened on the upper side of the sleeper body, and the two rail grooves are arranged symmetrically front and back. Two steel rails are installed on the upper side of the sleeper body.

[0007] The lower sides of the two rails extend into the interior of the two rail slots respectively. The front and rear sides of the two rails are fixedly connected with second fixing blocks. Both rail slots are provided with shock-absorbing connection mechanisms. The two shock-absorbing connection mechanisms can be used to install and fix the two rails into the interior of the two rail slots respectively. At the same time, they can absorb and reduce the vibration and impact generated by the train during use. The connection structure of the two shock-absorbing connection mechanisms is the same and they are arranged in a front-to-back manner.

[0008] The shock-absorbing connection mechanism includes four second bolts, a connecting plate, a first buffer pad, an elastic pad, a mounting groove, an air spring, and a connection port.

[0009] Preferably, two first bolts are installed on the upper side of each of the two first fixing blocks, and the lower ends of the four first bolts pass through the two first fixing blocks and the second buffer pad respectively.

[0010] The sleeper rail body and the two first fixing blocks are connected to the bridge by the first bolts.

[0011] Preferably, the four second bolts are respectively installed on the upper side of the two second fixing blocks, and two second bolts are installed on each second fixing block;

[0012] The two second bolts on each second fixing block are symmetrically arranged from left to right, and the connecting plate is slidably connected inside the rail groove.

[0013] Preferably, the first buffer pad is fixedly connected to the upper side of the connecting plate, and the upper side of the first buffer pad is in contact with the rail and the two second fixing blocks;

[0014] The lower ends of the four second bolts pass through the two second fixing blocks and the first buffer pad.

[0015] Preferably, the lower ends of the four second bolts are threaded into the interior of the connecting plate, and the elastic pad is fixedly connected to the lower side of the connecting plate;

[0016] The lower side of the elastic pad is fixedly connected to the bottom wall of the rail groove, and the mounting groove is opened inside the sleeper rail body.

[0017] Preferably, the upper side of the mounting groove extends into the interior of the rail groove, the air spring is fixedly connected to the bottom wall of the mounting groove, and the connection port is opened on the upper side of the elastic pad.

[0018] The lower side of the connector passes through the elastic pad, and the upper end of the air spring is fixedly connected to the connecting plate through the connector.

[0019] Preferably, the first cushioning pad, the elastic pad, and the second cushioning pad are all made of high-performance rubber or polyurethane material.

[0020] Preferably, the gap between the inner wall of the rail groove and the outer wall of the rail is 3-5mm, and the gap is filled with graphite lubricating powder.

[0021] Preferably, the fitting gap between the connecting plate and the rail groove is 1-2mm, and both the upper and lower surfaces of the connecting plate are polished, with a surface roughness Ra≤1.6μm.

[0022] Preferably, the inner diameter of the connection port is 2-3 mm larger than the outer diameter of the air spring.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] (1) The railway bridge sleeper assembly can install shock absorption devices on the sleepers, thereby absorbing and weakening the vibration and impact generated by the train, thus reducing the impact of vibration and impact on the connecting parts, preventing them from loosening and being damaged, and improving the stability and safety of the railway.

[0025] (2) The sleeper assembly for railway bridges is made so that the sleeper body is firmly connected to the bridge through the first fixing block and the first bolt. The second buffer pad further buffers the vibration and impact between the sleeper body and the bridge, enhances the connection stability between the entire sleeper assembly and the bridge, reduces the risk of connection loosening due to vibration, and ensures the overall safety of the railway bridge system. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the structure of a railway bridge sleeper assembly according to the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of point A;

[0029] Figure 3 This is a schematic diagram of the left-side cross-sectional connection structure of the sleeper rail assembly of this utility model;

[0030] Figure 4 This is a schematic diagram of the connection structure on the upper and lower sides of the connecting plate of this utility model.

[0031] Reference numerals in the attached drawings: 1. Rail sleeper body; 2. First fixing block; 3. First bolt; 4. Rail groove; 5. Rail; 6. Second fixing block; 7. Second bolt; 8. Connecting plate; 9. First buffer pad; 10. Elastic pad; 11. Mounting groove; 12. Air spring; 13. Connection port; 14. Second buffer pad. Detailed Implementation

[0032] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] Please see Figure 1-4 This utility model provides a new technical solution: a railway bridge sleeper assembly, including a sleeper body 1, with first fixing blocks 2 fixedly connected to both the left and right sides of the sleeper body 1, and second buffer pads 14 fixedly connected to the lower sides of the sleeper body 1 and the two first fixing blocks 2. Two first bolts 3 are installed on the upper sides of the two first fixing blocks 2, with the lower ends of the four first bolts 3 passing through the two first fixing blocks 2 and the second buffer pads 14 respectively. The sleeper body 1 and the two first fixing blocks 2 are connected to the bridge via the first bolts 3. Two rail grooves 4 are formed on the upper side of the sleeper body 1, arranged symmetrically front to back. Two... The two rails 5 extend into the interior of the two rail grooves 4 on their lower sides. The front and rear sides of the two rails 5 are fixedly connected with second fixing blocks 6. The two rail grooves 4 are equipped with shock-absorbing connection mechanisms. The two shock-absorbing connection mechanisms can fix the two rails 5 into the interior of the two rail grooves 4 respectively, and absorb and reduce the vibration and impact generated by the train during use. The connection structure of the two shock-absorbing connection mechanisms is the same and they are arranged front and rear. The following description focuses on the front shock-absorbing connection mechanism. The shock-absorbing connection mechanism includes four second bolts 7, a connecting plate 8, a first buffer pad 9, an elastic pad 10, a mounting groove 11, an air spring 12, and a connection port 13.

[0037] Furthermore, four second bolts 7 are respectively installed on the upper side of the two second fixing blocks 6, with two second bolts 7 installed on each second fixing block 6. The two second bolts 7 on each second fixing block 6 are arranged symmetrically from left to right. The connecting plate 8 is slidably connected to the inside of the rail groove 4. The first buffer pad 9 is fixedly connected to the upper side of the connecting plate 8. The upper side of the first buffer pad 9 is in contact with the rail 5 and the two second fixing blocks 6. The lower ends of the four second bolts 7 pass through the two second fixing blocks 6 and the first buffer pad 9, and the threads of the lower ends of the four second bolts 7 extend into the inside of the connecting plate 8. The elastic pad... 10 is fixedly connected to the lower side of the connecting plate 8. The lower side of the elastic pad 10 is fixedly connected to the bottom wall of the rail groove 4. The mounting groove 11 is opened inside the sleeper rail body 1. The upper side of the mounting groove 11 extends into the interior of the rail groove 4. The air spring 12 is fixedly connected to the bottom wall of the mounting groove 11. The connection port 13 is opened on the upper side of the elastic pad 10. The lower side of the connection port 13 passes through the elastic pad 10. The upper end of the air spring 12 is fixedly connected to the connecting plate 8 through the connection port 13. The first buffer pad 9, the elastic pad 10, and the second buffer pad 14 are all made of high-performance rubber or polyurethane material.

[0038] Furthermore, the sleeper body 1 is the basic support structure of the entire component. The first fixing blocks 2, which are fixedly connected to its left and right sides, are connected to the bridge together with the sleeper body 1 through the first bolts 3. The two rail grooves 4, which are symmetrically arranged front and back on the upper side of the sleeper body 1, provide a precise installation position for the two rails 5. The lower sides of the two rails 5 extend into the two rail grooves 4 respectively to achieve initial positioning. The lower ends of the four second bolts 7 pass through the two second fixing blocks 6 and the first buffer pad 9, and then extend into the connecting plate 8 with threads, thereby tightly connecting the rails 5, the second fixing blocks 6, the first buffer pad 9 and the connecting plate 8 together, so as to achieve stable installation of the rails 5 in the rail grooves 4.

[0039] When a train travels on rail 5, it generates vibrations and impacts, which are transmitted to the entire sleeper assembly. Rail 5 first transmits the vibrations and impacts to the first buffer pad 9 in contact with it. Since the first buffer pad 9 is fixedly connected to the upper side of the connecting plate 8 and is in contact with rail 5 and two second fixed blocks 6, the first buffer pad 9 will initially absorb and buffer some of the vibrations and impacts through its own deformation. At the same time, an elastic pad 10 is fixedly connected to the lower side of the connecting plate 8. The lower side of the elastic pad 10 is fixedly connected to the bottom wall of the rail groove 4. The elastic pad 10 will further deform to absorb and weaken the vibrations and impacts transmitted from the first buffer pad 9.

[0040] When vibration and impact forces are transmitted to the connecting plate 8, the connecting plate 8 will compress the air spring 12 downwards. The air spring 12 utilizes the compressibility of air to absorb and weaken the vibration and impact forces again. When the sleeper body 1 is subjected to vibration and impact forces transmitted from the train, these forces will be partially transmitted to the first fixed block 2, and then to the second buffer pad 14. The second buffer pad 14, through its own deformation, buffers and absorbs the transmitted vibration and impact forces, reducing the rigid collision between the sleeper body 1 and the bridge, and reducing the damage to the bridge structure. Through the multiple shock absorption structures of the first buffer pad 9, the elastic pad 10, the air spring 12, and the second buffer pad 14, the vibration and impact generated by the train can be effectively absorbed and weakened in all directions, reducing the damage to the sleeper body 1 and the entire bridge structure, and improving the service life and operational safety of the railway bridge.

[0041] Furthermore, this method allows for the installation of shock-absorbing devices on the sleepers, thereby absorbing and reducing the vibrations and impacts generated by train operation. This reduces the impact of vibrations and impacts on connecting components, preventing them from loosening and becoming damaged, and improving the stability and safety of the railway.

[0042] Structural Description: Sleeper Body 1: As the basic support structure of the entire assembly, it bears the weight of components such as the rail 5 and the shock-absorbing connection mechanism, while also transmitting various forces generated by train operation to the bridge. Two symmetrical rail grooves 4 on its upper side provide precise installation positions for the rail 5, enabling it to be accurately and stably installed on the sleeper, ensuring a stable track foundation for train operation.

[0043] The first fixing block 2 is fixedly connected to the left and right sides of the sleeper body 1, forming an integral structure together with the sleeper body 1. It is connected to the bridge by the first bolt 3, which enhances the stability and firmness of the connection between the sleeper body 1 and the bridge, ensuring that the sleeper assembly will not loosen or shift during train operation, and more reliably transmitting the force borne by the sleeper body 1 to the bridge.

[0044] First Bolt 3: There are four first bolts 3, which are installed on the upper side of the two first fixing blocks 2 respectively. Their lower ends pass through the two first fixing blocks 2 and the second buffer pad 14, tightly connecting the sleeper body 1 and the two first fixing blocks 2 to the bridge. This connection method ensures a stable fixation between the sleeper assembly and the bridge, can withstand the enormous power and vibration generated by the train during operation, prevents the sleeper assembly from separating from the bridge, and ensures the safety of railway operation.

[0045] Rail groove 4: It is opened on the upper side of the sleeper body 1 and is arranged symmetrically front and back. It provides installation space for the rail 5, allowing the rail 5 to be accurately embedded in it, restricting the horizontal movement of the rail 5, ensuring the installation accuracy and stability of the rail 5, and providing a smooth running track for the train.

[0046] Rail 5: Installed in the two rail grooves 4 on the upper side of the sleeper body 1, it is the direct load-bearing component for train movement. The train wheels roll on the rail 5, enabling the train to run. At the same time, the rail 5 transmits the vibration and impact forces generated during train operation to the shock-absorbing connection mechanism below, making it a crucial link in force transmission.

[0047] The second fixing block 6 is fixedly connected to the front and rear sides of the two rails 5, providing an installation position for the second bolt 7. The second bolt 7 connects the rails 5 to the shock-absorbing connection mechanism, enhancing the stability of the rail 5 installation and enabling the rails 5 to work better with the shock-absorbing connection mechanism to jointly withstand the forces generated by the train operation.

[0048] There are four second bolts 7, which are installed on the upper side of the two second fixing blocks 6. Two second bolts 7 are installed on each second fixing block 6 in a symmetrical arrangement. The lower end of each bolt 7 passes through the two second fixing blocks 6 and the first buffer pad 9, and the thread extends into the interior of the connecting plate 8, tightly connecting the rail 5, the second fixing blocks 6, the first buffer pad 9 and the connecting plate 8 together, so as to achieve a stable installation of the rail 5 in the rail groove 4 and ensure that the rail 5 will not shake or shift during train operation.

[0049] Connecting plate 8: Slidingly connected inside the rail groove 4, it serves as an important component of the shock-absorbing connection mechanism, connecting the rail 5, the first buffer pad 9, the elastic pad 10, and the air spring 12. It can evenly transmit the force from the rail 5 to the elastic pad 10 and the air spring 12. At the same time, its sliding connection method also allows it to adapt to the slight deformation and vibration of the rail 5 to a certain extent, ensuring the normal operation of the shock-absorbing connection mechanism.

[0050] The first buffer pad 9 is fixedly connected to the upper side of the connecting plate 8, contacting the rail 5 and the two second fixing blocks 6. It is made of high-performance rubber or polyurethane material, possessing good elasticity and cushioning performance. When the train travels on the rail 5 and generates vibration and impact, the rail 5 first transmits the force to the first buffer pad 9. The first buffer pad 9, through its own deformation, initially absorbs and buffers part of the vibration and impact force, reducing the direct transmission of force to the components below and minimizing impact and damage to other components.

[0051] Elastic pad 10: Fixedly connected to the lower side of the connecting plate 8, and its lower side is fixedly connected to the bottom wall of the rail groove 4. It is also made of high-performance rubber or polyurethane material, which has good elasticity and shock absorption capacity. The vibration and impact force after initial buffering by the first buffer pad 9 is transmitted to the connecting plate 8, which in turn causes the elastic pad 10 to deform, further absorbing and weakening this force, reducing the impact on the sleeper rail body 1, and protecting the sleeper rail body 1 from damage caused by excessive vibration and impact.

[0052] Mounting slot 11: It is formed inside the sleeper rail body 1 and extends into the rail groove 4 on the upper side. It provides mounting space for the air spring 12, so that the air spring 12 can be firmly installed inside the sleeper rail body 1 and connected to the connecting plate 8, providing the necessary structural support for the air spring 12 to perform its shock absorption function.

[0053] Air spring 12: Fixedly connected to the bottom wall of mounting groove 11, with its upper end connected to connecting plate 8 via connecting port 13, which is located on the upper side of elastic pad 10 and extends through elastic pad 10 on its lower side. Utilizing the compressibility of air, when vibration and impact forces are transmitted to connecting plate 8, connecting plate 8 compresses air spring 12 downwards. Air spring 12 absorbs and weakens vibration and impact forces through air compression and release, effectively reducing the impact of train operation on the sleeper rail body 1 and providing a higher level of shock absorption.

[0054] Connection port 13: It is located on the upper side of the elastic pad 10 and extends through the elastic pad 10 on the lower side. It provides a channel for the connection between the air spring 12 and the connecting plate 8, so that the air spring 12 can be fixedly connected to the connecting plate 8 through the connection port 13, realizing the coordinated work of force transmission and shock absorption functions, ensuring that the air spring 12 can accurately respond to the vibration and impact of the connecting plate 8 and play its shock absorption role.

[0055] The second buffer pad 14 is fixedly connected to the underside of the sleeper body 1 and the two first fixing blocks 2, and is made of high-performance rubber or polyurethane material. When the sleeper body 1 is subjected to vibration and impact forces transmitted from the train, these forces are partially transmitted to the first fixing blocks 2, and then to the second buffer pad 14. The second buffer pad 14, through its own deformation, buffers and absorbs the transmitted vibration and impact forces, reduces rigid collisions between the sleeper body 1 and the bridge, reduces damage to the bridge structure, and protects the bridge's service life and safety.

[0056] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A railway bridge sleeper assembly, comprising a sleeper body (1), wherein first fixing blocks (2) are fixedly connected to both the left and right sides of the sleeper body (1), and second buffer pads (14) are fixedly connected to the lower sides of the sleeper body (1) and the two first fixing blocks (2); Two rail grooves (4) are opened on the upper side of the sleeper body (1). The two rail grooves (4) are arranged symmetrically in front and behind. Two steel rails (5) are installed on the upper side of the sleeper body (1). The lower sides of the two rails (5) extend into the interior of the two rail grooves (4), and the front and rear sides of the two rails (5) are fixedly connected with second fixing blocks (6), characterized in that: Both of the two rail grooves (4) are provided with shock-absorbing connection mechanisms. The two rails (5) can be installed and fixed inside the two rail grooves (4) respectively through the two shock-absorbing connection mechanisms. At the same time, the vibration and impact generated by the train are absorbed and weakened during use. The connection structure of the two shock-absorbing connection mechanisms is the same and they are arranged in front and behind. The shock-absorbing connection mechanism includes four second bolts (7), a connecting plate (8), a first buffer pad (9), an elastic pad (10), a mounting groove (11), an air spring (12), and a connection port (13).

2. A railway bridge sleeper assembly according to claim 1, characterized in that: Two first bolts (3) are installed on the upper side of each of the two first fixing blocks (2), and the lower ends of the four first bolts (3) pass through the two first fixing blocks (2) and the second buffer pad (14) respectively. The sleeper body (1) and two first fixing blocks (2) are connected to the bridge by first bolts (3).

3. A railway bridge sleeper assembly according to claim 1, characterized in that: The four second bolts (7) are respectively installed on the upper side of the two second fixing blocks (6), and two second bolts (7) are installed on each second fixing block (6); The two second bolts (7) on each second fixing block (6) are arranged symmetrically on the left and right, and the connecting plate (8) is slidably connected inside the rail groove (4).

4. A railway bridge sleeper assembly according to claim 1, characterized in that: The first buffer pad (9) is fixedly connected to the upper side of the connecting plate (8), and the upper side of the first buffer pad (9) is in contact with the rail (5) and the two second fixing blocks (6); The lower ends of the four second bolts (7) pass through the two second fixing blocks (6) and the first buffer pad (9).

5. A railway bridge sleeper assembly according to claim 4, characterized in that: The lower ends of the four second bolts (7) are threaded into the interior of the connecting plate (8), and the elastic pad (10) is fixedly connected to the lower side of the connecting plate (8); The lower side of the elastic pad (10) is fixedly connected to the bottom wall of the rail groove (4), and the mounting groove (11) is opened inside the sleeper rail body (1).

6. A railway bridge sleeper assembly according to claim 5, characterized in that: The upper side of the mounting groove (11) extends into the interior of the rail groove (4), the air spring (12) is fixedly connected to the bottom wall of the mounting groove (11), and the connection port (13) is opened on the upper side of the elastic pad (10). The lower side of the connector (13) passes through the elastic pad (10), and the upper end of the air spring (12) is fixedly connected to the connecting plate (8) through the connector (13).

7. A railway bridge sleeper assembly according to claim 1, characterized in that: The first buffer pad (9), the elastic pad (10), and the second buffer pad (14) are all made of high-performance rubber or polyurethane material.

8. A railway bridge sleeper assembly according to claim 1, characterized in that: The gap between the inner wall of the rail groove (4) and the outer wall of the rail (5) is 3-5mm, and the gap is filled with graphite lubricating powder.

9. A railway bridge sleeper assembly according to claim 3, characterized in that: The fitting clearance between the connecting plate (8) and the rail groove (4) is 1-2 mm.

10. A railway bridge sleeper assembly according to claim 6, characterized in that: The inner diameter of the connection port (13) is 2-3 mm larger than the outer diameter of the air spring (12).

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