Polyurethane concrete composite sleeper

Abstract

The utility model relates to a polyurethane concrete composite sleeper, and relates to the technical field of concrete sleepers, the polyurethane concrete composite sleeper comprises a sleeper body, a supporting plate and a bottom plate are arranged on the two sides of the sleeper body, the supporting plate is arranged on the upper portion of the sleeper body and fixedly connected with the sleeper body, and the bottom plate is arranged on the lower portion of the sleeper body. The bottom plate is fixedly connected to the lower end face of the sleeper body, a connecting column is fixedly connected between the supporting plate and the bottom plate, a plurality of transverse rods are fixedly connected into the sleeper body and arranged in the length direction of the sleeper body, every two adjacent transverse rods are arranged in a staggered mode, and the transverse rods are fixedly connected with the bottom plate. And the end part of the cross rod is fixedly connected to the connecting column. The sleeper has the effect of reducing deformation of the sleeper.

Description

Technical Field

[0001] This application relates to concrete sleepers, and more particularly to a polyurethane concrete composite sleeper. Background Technology

[0002] In railway track systems, sleepers are crucial components that support the rails and transfer the loads borne by the rails to the ballast bed. Their performance directly affects the safety and stability of railway operation. Traditional sleeper structures come in various forms, one common type being where the upper surface of the sleeper directly contacts the rail. While this contact method seems simple and straightforward, it has revealed numerous problems in actual railway operation.

[0003] Because the forces exerted by the train on the rails act directly and without buffering on the sleepers, the contact area between the sleepers and rails experiences immense pressure. During train operation, in addition to the static load generated by the train's own weight, there are also dynamic loads such as those from starting, accelerating, braking, and vibrations during travel. These complex forces are concentrated on the contact area between the sleepers and rails. Under this high-pressure condition for extended periods, the contact area between the sleepers and rails is highly susceptible to wear, deformation, and other damage, affecting the smoothness of the rails and ultimately threatening the stability and safety of train operation. Summary of the Invention

[0004] To reduce the occurrence of sleeper deformation, this application provides a polyurethane concrete composite sleeper.

[0005] The polyurethane concrete composite railway sleeper provided in this application adopts the following technical solution:

[0006] A polyurethane concrete composite railway sleeper includes a sleeper body, with support plates and a base plate on both sides of the sleeper body. The support plates are placed on the upper part of the sleeper body and fixedly connected to the sleeper body. The base plate is fixedly connected to the lower end face of the sleeper body. A connecting column is fixedly connected between the support plates and the base plate. Multiple crossbars are fixedly connected inside the sleeper body. The crossbars are arranged along the length direction of the sleeper body, and adjacent crossbars are staggered. The ends of the crossbars are fixedly connected to the connecting columns.

[0007] By adopting the above technical solution, support plates and base plates are set on both sides of the sleeper body, and the support plates and base plates are fixedly connected by connecting columns, which can effectively improve the overall structural strength and stability of the sleeper. Multiple crossbars are set along the length of the sleeper body and arranged in an alternating manner, which further enhances the sleeper's bending resistance and load-bearing capacity. At the same time, the ends of the crossbars are fixedly connected to the connecting columns, ensuring the stability of the structure and effectively preventing deformation of the sleeper during use, thereby reducing the occurrence of sleeper deformation.

[0008] Optionally, two grooves are formed on the upper surface of the sleeper body, and the grooves correspond one-to-one with the support plate, with the support plate placed in the groove.

[0009] By adopting the above technical solution, the connection between the support plate and the sleeper body can be made more stable, improving the overall structural stability. At the same time, the groove design can effectively prevent the support plate from horizontally shifting during use, enhancing the sleeper's load-bearing capacity and impact resistance.

[0010] Optionally, the upper end of the support plate is provided with a superimposed plate, and a fixing component for connecting the superimposed plate and the support plate is provided between the two.

[0011] By adopting the above technical solution, the support height of the sleeper can be changed by using a superimposed plate in areas with uneven ground. This achieves a reliable connection between the superimposed plate and the support plate, ensuring that there will be no relative displacement between the two during use, thereby improving the safety of the sleeper.

[0012] Optionally, the fixing component includes screws located on both sides of the support plate, the screws being fixedly connected to the sleeper body, the stacking plate being inserted through and slidably connected to the screws, and a fixing nut being threaded onto the screws, the fixing nut pressing the stacking plate against the support plate.

[0013] By adopting the above technical solution, the height of the nut can be adjusted on the screw by rotating the nut, so that the nut presses the stacked plate tightly onto the support plate, thereby quickly fixing the stacked plate on the support plate.

[0014] Optionally, the lower end of the support plate is fixedly connected to a plurality of abutment blocks, and the bottom of the groove to which the abutment blocks are located is provided with a plurality of limiting grooves, and the abutment blocks are placed in the limiting grooves.

[0015] By adopting the above technical solution, the support plate can be supported by the limiting groove and the abutment block, thereby improving its stability on the sleeper body.

[0016] Optionally, a drainage groove is provided on the sleeper body, one end of the drainage groove is connected to the bottom of the groove, and the other end of the drainage groove is inclined downward and connected to the outside of the sleeper body.

[0017] By adopting the above technical solution, the water accumulated in the groove can be drained smoothly, avoiding the corrosion and damage to the sleeper body or support plate caused by water remaining in the groove for a long time, thereby effectively extending the overall service life of the sleeper.

[0018] Optionally, a drain pipe is fixedly connected inside the drainage trough, and the drain pipe is arranged along the length of the drainage trough.

[0019] By adopting the above technical solutions, the accumulated water can be effectively drained, preventing it from stagnating inside the sleeper and thus avoiding damage to the sleeper due to prolonged soaking, thereby extending the service life of the sleeper.

[0020] Optionally, both the support plate and the base plate are made of stainless steel.

[0021] By adopting the above technical solutions, the corrosion resistance of railway sleepers can be significantly improved, extending their service life. At the same time, the high strength and hardness of stainless steel further enhance the overall structural stability of the sleepers, ensuring reliable operation in complex environments.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. It enhances the bending resistance and load-bearing capacity of the sleepers. At the same time, the ends of the crossbars are fixedly connected to the connecting columns, ensuring the stability of the structure and effectively preventing the sleepers from deforming during use, thereby reducing the occurrence of sleeper deformation.

[0024] 2. The groove design effectively prevents the support plate from shifting horizontally during use, enhancing the sleeper's load-bearing capacity and impact resistance;

[0025] 3. It allows water to drain smoothly from the groove, preventing water from remaining in the groove for a long time and causing corrosion and damage to the sleeper body or support plate, thus effectively extending the overall service life of the sleeper. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the crossbar structure according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the limiting groove in an embodiment of this application.

[0029] In the diagram, 1. Sleeper body; 11. Groove; 12. Drainage groove; 13. Limiting groove; 2. Support plate; 3. Drainage pipe; 4. Base plate; 5. Stacking plate; 6. Fixing component; 61. Screw; 62. Fixing nut; 7. Abutment block; 8. Crossbar; 9. Connecting column. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0031] An embodiment of this application is: a polyurethane concrete composite sleeper, as shown in the reference. Figure 1 and Figure 2 The system includes a sleeper body 1, with support plates 2 on both sides. The support plates 2 are positioned on the upper surface of the sleeper body 1, and a groove 11 is formed on the upper surface of the sleeper body 1 opposite to the support plate 2. The support plate 2 is placed in and fixedly connected within the groove 11. A base plate 4 is provided below the support plate 2, parallel to the support plate 2 and located on the bottom surface of the sleeper body 1. Two connecting columns 9 are fixedly connected between the support plate 2 and the base plate 4, and the two connecting columns 9 are parallel to each other. To reduce corrosion of the support plate 2 and the base plate 4, both the support plate 2 and the base plate 4 are made of stainless steel.

[0032] Multiple crossbars 8 are fixedly connected inside the sleeper body 1. In this embodiment, there are two crossbars 8. The crossbars 8 are arranged along the length of the sleeper body 1, and the two crossbars 8 are staggered and welded together. The ends of the crossbars 8 are fixedly connected to the connecting posts 9, and the crossbars 8 and the connecting posts 9 correspond one-to-one.

[0033] Reference Figure 1 , Figure 2 and Figure 3 A stacking plate 5 is provided on the upper end of the support plate 2. In this embodiment, the number of stacking plates 5 is set to one. A fixing component 6 is provided between the stacking plate 5 and the support plate 2 for connecting the two. The fixing component 6 includes screws 61 located on both sides of the support plate 2, and the length direction of the screws 61 is perpendicular to the end face of the stacking plate 5. The screws 61 are fixedly connected to the sleeper body 1. The stacking plate 5 passes through and is slidably connected to the screws 61. A fixing nut 62 is threaded on the screws 61. The fixing nut 62 presses the stacking plate 5 against the support plate 2. Thus, the stacking plate 5 is pressed against the support plate 2 by the fixing nut 62 and the screws 61. At the same time, during installation, the height of the fixing nut 62 can be adjusted on the screws 61 by rotating the fixing nut 62, so that the fixing nut 62 presses the stacking plate 5 against the support plate 2, thereby fixing the stacking plate 5 on the support plate 2.

[0034] To improve the stability of the support plate 2 within the groove 11, a plurality of abutment blocks 7 are fixedly connected to the lower end of the support plate 2. Multiple limiting grooves 13 are provided on the bottom of the groove 11 corresponding to each abutment block 7. The abutment blocks 7 are placed within the limiting grooves 13.

[0035] To facilitate the drainage of water accumulated in the groove 11, a drainage groove 12 is provided on the sleeper body 1, with the drainage groove 12 located on both sides of the sleeper body 1. One end of the drainage groove 12 is connected to the bottom of the groove 11, and the other end of the drainage groove 12 slopes downward and is connected to the outside of the sleeper body 1. In order to protect the drainage groove 12 to a certain extent, a drainage pipe 3 is fixedly connected inside the drainage groove 12. The drainage pipe 3 is arranged along the length of the drainage groove 12 and is connected to the outside of the sleeper body 1.

[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polyurethane concrete composite railway sleeper, comprising a sleeper body (1), characterized in that, The sleeper body (1) has a support plate (2) and a bottom plate (4) on both sides. The support plate (2) is placed on the upper part of the sleeper body (1) and fixedly connected to the sleeper body (1). The bottom plate (4) is fixedly connected to the lower end face of the sleeper body (1). A connecting column (9) is fixedly connected between the support plate (2) and the bottom plate (4). Multiple crossbars (8) are fixedly connected inside the sleeper body (1). The crossbars (8) are arranged along the length direction of the sleeper body (1). Two adjacent crossbars (8) are staggered. The end of the crossbar (8) is fixedly connected to the connecting column (9).

2. The polyurethane concrete composite sleeper according to claim 1, characterized in that, Two grooves (11) are provided on the upper surface of the sleeper body (1), and the grooves (11) correspond one-to-one with the support plate (2), and the support plate (2) is placed in the grooves (11).

3. A polyurethane concrete composite sleeper according to claim 2, characterized in that, The upper end of the support plate (2) is provided with a superimposed plate (5), and a fixing component (6) for connecting the superimposed plate (5) and the support plate (2) is provided.

4. A polyurethane concrete composite railway sleeper according to claim 3, characterized in that, The fixing component (6) includes screws (61) located on both sides of the support plate (2). The screws (61) are fixedly connected to the sleeper body (1). The stacking plate (5) passes through and is slidably connected to the screws (61). A fixing nut (62) is threaded onto the screws (61). The fixing nut (62) presses the stacking plate (5) against the support plate (2).

5. A polyurethane concrete composite railway sleeper according to claim 4, characterized in that, The lower end of the support plate (2) is fixedly connected to a plurality of abutment blocks (7), and the bottom of the groove (11) opposite to the abutment block (7) is provided with a plurality of limiting grooves (13), and the abutment block (7) is placed in the limiting groove (13).

6. A polyurethane concrete composite railway sleeper according to claim 5, characterized in that, The sleeper body (1) is provided with a drainage groove (12), one end of the drainage groove (12) is connected to the bottom of the groove (11), and the other end of the drainage groove (12) is inclined downward and connected to the outside of the sleeper body (1).

7. A polyurethane concrete composite railway sleeper according to claim 6, characterized in that, A drain pipe (3) is fixedly connected inside the drainage trough (12), and the drain pipe (3) is arranged along the length direction of the drainage trough (12).

8. A polyurethane concrete composite railway sleeper according to claim 1, characterized in that, Both the support plate (2) and the base plate (4) are made of stainless steel.

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