Reinforcing device for preventing rail from moving downwards in large ramp section

Abstract

The utility model provides a reinforcing device for preventing a track from moving downwards in a large ramp section, which relates to the technical field of railway tracks and comprises at least one sleeper connecting component, a reinforcing member pile and an adjustable connecting rod, and two end parts of the sleeper connecting component are fixedly connected with adjacent sleepers respectively; the bottom of the reinforcing member pile is fixedly connected with the ground below the track; the two ends of the adjustable connecting rod are fixedly connected with the sleeper connecting assembly and the adjustable connecting piece respectively. The sleeper connecting assemblies connected in series form an integral structure, so that the force borne by the track is effectively dispersed, and the risk of downward displacement of the track is reduced. Meanwhile, the arrangement of the reinforcing member piles enhances the connection with the tunnel inverted arch and the bridge surface, provides additional supporting force, and ensures the fixity of the track. In addition, due to the design of an adjustable connecting rod in the device, the whole structure can be flexibly adjusted according to actual conditions, and the device is suitable for different construction environments and operation conditions.

Description

Technical Field

[0001] This utility model relates to the field of railway track technology, and more specifically, to a reinforcement device for preventing the track from shifting downwards on steep slopes. Background Technology

[0002] In railway track construction, especially on ballasted tracks with steep gradients (ranging from 40‰ to 120‰), the vertical resistance of the track gradually decreases as the gradient increases. This phenomenon leads to a tendency for the track to shift downwards on slopes, particularly in tunnels and on bridges, where the low friction between the ballast and the smooth concrete invert surface and bridge deck further exacerbates the risk of track displacement. Furthermore, the strong traction and braking forces generated by trains running on long gradients significantly increase the likelihood of downward track displacement. Existing technologies primarily address this issue by increasing track weight or using traditional fixing devices, but these methods often have limited effectiveness, failing to effectively resist track displacement at extreme gradients and presenting limitations during construction and maintenance.

[0003] Based on the shortcomings of the existing technology, there is an urgent need for a reinforcement device to prevent the track from shifting downwards on steep slopes. Utility Model Content

[0004] The purpose of this invention is to provide a reinforcement device to prevent track displacement on steep slopes, thereby improving the aforementioned problems. To achieve this objective, the technical solution adopted by this invention is as follows:

[0005] This application provides a reinforcement device for preventing downward displacement of tracks on steep slopes, comprising at least one sleeper connecting assembly, a reinforcement pile, and an adjustable connecting rod. The two ends of the sleeper connecting assembly are fixedly connected to adjacent sleepers, respectively; the bottom of the reinforcement pile is fixedly connected to the ground below the track; and the two ends of the adjustable connecting rod are fixedly connected to the sleeper connecting assembly and the reinforcement pile, respectively.

[0006] Furthermore, the sleeper connecting assembly includes a sleeper end cover and a connecting steel plate, the sleeper cover is disposed on the end face of the sleeper, and adjacent sleeper end covers are fixedly connected by the connecting steel plate.

[0007] Furthermore, the reinforcing member pile includes a fixing member and an elastic connector. One end of the fixing member is fixedly connected to the ground below the track, and the other end is fixedly connected to the elastic connector. The elastic connector is fixedly connected to the adjustable connecting rod. The elastic connector provides tension force to the sleeper connection assembly along the uphill direction of the track through the adjustable connecting rod.

[0008] Furthermore, the adjustable connecting rod includes an adjustable connecting rod, an adjusting nut, and a tightening nut. One end of the adjusting nut is fixedly connected to the sleeper connecting assembly, and the other end has an internal threaded hole. The two ends of the adjustable connecting rod are a first external threaded portion and a second external threaded portion. The first external threaded portion is fixedly connected to the internal threaded hole, and the second external threaded portion is fixedly connected to the elastic connecting member. The adjusting nut is disposed at the connection between the first external threaded portion and the adjusting nut.

[0009] Furthermore, the elastic connector includes a support, an outer semicircular component, an inner semicircular component, a spring, and a fastening device. One end of the support is fixedly connected to the fixing member, and the other end is fixedly connected to the outer semicircular component. The inner semicircular component is disposed inside the outer semicircular component, and the spring is disposed inside the inner semicircular component. The fastening device is disposed on the end of the spring away from the inner semicircular component. Both the outer semicircular component and the inner semicircular component have through holes that cooperate with the adjustable connecting rod. The adjustable connecting rod passes through the outer semicircular component, the inner semicircular component, and the spring in sequence and is fixedly connected to the fastening device.

[0010] Furthermore, the fastening device includes a washer and a nut, the internal thread of the nut engaging with the external thread of the second external thread portion, and the washer being disposed between the nut and the spring.

[0011] Furthermore, the outer semicircular component is a hollow spherical structure, and the hollow spherical structure is cut off in the circumferential direction to form an opening.

[0012] Furthermore, the overall height of the reinforcing pile does not exceed 20mm above the top surface of the track bed at both ends.

[0013] Furthermore, the shape of the sleeper end cap is the same as the shape of the sleeper end, and the thickness is 5mm.

[0014] Furthermore, the sleeper end cap is fixedly connected to the end of the sleeper by expansion bolts.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention utilizes a series-connected sleeper assembly to form a unified structure, effectively distributing the forces borne by the track and reducing the risk of downward track displacement. Simultaneously, the reinforcement piles enhance the connection with the tunnel arch and bridge deck, providing additional support and ensuring track stability. Furthermore, the adjustable linkage design allows for flexible adjustments to the overall structure to adapt to different construction environments and operating conditions. This structural flexibility and adaptability not only simplifies installation and maintenance but also improves the track's resistance to downward displacement, providing a more reliable guarantee for the safe operation of the railway.

[0017] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the reinforcement device for preventing downward displacement of the track on a steep slope as described in this application;

[0020] Figure 2 This is a front view of the reinforcement device used to prevent the track from shifting downwards on a steep slope.

[0021] The markings in the diagram are: 1. Sleeper connecting assembly; 11. Sleeper end cap; 12. Connecting steel plate; 2. Reinforcing component pile; 21. Fixing component; 22. Elastic connecting component; 221. Support; 222. Outer semi-circular component; 223. Inner semi-circular component; 224. Spring; 225. Fastening device; 3. Adjustable connecting rod; 31. Adjustable connecting rod; 32. Adjusting nut; 33. Tightening nut. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figure 1 As shown, Figure 1 A schematic diagram of a reinforcement device for preventing downward displacement of a track on a steep gradient is shown. This application provides a reinforcement device for preventing downward displacement of a track on a steep gradient, including at least one sleeper connecting assembly 1, a reinforcement pile 2, and an adjustable connecting rod 3. The two ends of the sleeper connecting assembly 1 are fixedly connected to adjacent sleepers, forming a single integral structure that enhances the track's resistance to downward displacement. The bottom of the reinforcement pile 2 is fixedly connected to the ground below the track, providing necessary support and stability, transferring the weight of the track and external forces to the ground, and preventing track displacement due to excessive gradient. The two ends of the adjustable connecting rod 3 are fixedly connected to the sleeper connecting assembly 1 and the reinforcement pile 2, respectively. This design allows the connecting rod to be adjusted as needed, providing appropriate tension to ensure track stability during operation.

[0025] Preferably, such as Figure 2As shown, the sleeper connecting assembly 1 includes sleeper end caps 11 and connecting steel plates 12. The sleeper end caps are installed on the end faces of the sleepers, and adjacent sleeper end caps 11 are fixedly connected by the connecting steel plates 12. The sleeper end caps 11 cover the end faces of the sleepers, forming a strong connecting surface to ensure that the sleepers can effectively transmit force when under stress. At the same time, the adjacent sleeper end caps 11 are fixedly connected by the connecting steel plates 12. This design not only improves the stability of the connection but also effectively disperses the load borne by the track, reduces local stress concentration, and thus improves the overall structure's resistance to downward displacement. Furthermore, on small-radius curves, since the lower sleeper is shorter than the upper sleeper, the eyelets of the connecting steel plates 12 need to have a certain gap in the longitudinal direction. For example, in ordinary track sections, the curve radius is 250m, the circular curve length is 200m, and the transition curve length is 50m. Calculations show that the shortening of the lower end rail sleeper on the circular curve is 1600mm, and further calculations show that the lower end rail sleeper of each rail is 4.7mm shorter than the upper end rail sleeper. In the 50m long transition curve section, the shortening of the lower end rail sleeper is 200mm, resulting in the lower end rail sleeper of each rail being 2.4mm shorter than the upper end rail sleeper on the transition curve section. Therefore, these shortenings must be considered when designing the connecting steel plate 12 to ensure the stability and safety of the track.

[0026] Preferably, the reinforcing pile 2 includes a fixing member 21 and an elastic connector 22. One end of the fixing member 21 is fixedly connected to the ground below the track, and the other end is fixedly connected to the elastic connector 22. The elastic connector 22 is fixedly connected to an adjustable link 3. The elastic connector 22 provides tension to the sleeper connection assembly 1 along the uphill direction of the track through the adjustable link 3. This design ensures the stability of the device and effectively absorbs the dynamic load generated during train operation through the elastic element, preventing rigid impact from damaging the structure.

[0027] Preferably, the adjustable connecting rod 3 includes an adjustable connecting rod 31, an adjusting nut 32, and a tightening nut 33. One end of the adjusting nut 32 is fixedly connected to the sleeper connecting assembly 1, and the other end has an internal threaded hole. The two ends of the adjustable connecting rod 31 are a first external thread and a second external thread. The first external thread is fixedly connected to the internal threaded hole, forming an adjustable connection point, allowing the length of the connecting rod to be adjusted according to actual needs. The second external thread is fixedly connected to the elastic connector 22, ensuring that the elastic connector 22 can provide tension force along the uphill direction of the track to the sleeper connecting assembly 1 through the adjustable connecting rod 31. The adjusting nut 32 is located at the connection between the first external thread and the adjusting nut 32, allowing for convenient adjustment of the nut's tightness in practical applications, thereby achieving precise control of the preload of the elastic connector 22.

[0028] Preferably, such as Figure 2As shown, the elastic connector 22 includes a support 221, an outer semicircular component 222, an inner semicircular component 223, a spring 224, and a fastening device 225. One end of the support 221 is fixedly connected to the fixing member 21, and the other end is fixedly connected to the outer semicircular component 222. The inner semicircular component 223 is disposed inside the outer semicircular component 222, and the spring 224 is disposed inside the inner semicircular component 223. The fastening device 225 is disposed on the end of the spring 224 away from the inner semicircular component 223. Both the outer semicircular component 222 and the inner semicircular component 223 have through holes that cooperate with the adjustable connecting rod 31. The adjustable connecting rod 31 passes through the outer semicircular component 222, the inner semicircular component 223, and the spring 224 in sequence and is fixedly connected to the fastening device 225. This application uses a spherical hinge structure to cooperate with the pressure spring 224. The preload of the spring 224 is controlled by the adjusting nut 32, so that the adjustable connecting rod 3 can continuously provide tension along the uphill direction of the track. This structure ensures vertical support stiffness while allowing for slight horizontal displacement.

[0029] Preferably, the fastening device 225 includes a washer and a nut, the internal thread of the nut engaging with the external thread of the second external thread portion, and the washer being disposed between the nut and the spring 224.

[0030] Preferably, the outer semicircular component 222 is a hollow spherical structure, and the hollow spherical structure is cut off in the circumferential direction to form an opening.

[0031] Preferably, the overall height of the reinforcing pile 2 does not exceed 20mm above the top surface of the track bed at both ends.

[0032] Preferably, the sleeper end cap 11 has the same shape as the sleeper end and a thickness of 5mm, providing sufficient strength to withstand the various forces generated by the track during operation.

[0033] Preferably, the sleeper end cap 11 is fixedly connected to the end of the sleeper using expansion bolts. The use of expansion bolts not only ensures the strength of the connection but also simplifies the installation process and improves construction efficiency.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A reinforcement device for preventing downward displacement of tracks on steep slopes, characterized in that, include: At least one sleeper connecting assembly (1), the two ends of which are fixedly connected to adjacent sleepers respectively; Reinforcing component pile (2), the bottom of which is fixedly connected to the ground below the track; and An adjustable connecting rod (3) is fixedly connected at both ends to the sleeper connecting assembly (1) and the reinforcing member pile (2).

2. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 1, characterized in that: The sleeper connection assembly (1) includes a sleeper end cap (11) and a connecting steel plate (12). The sleeper end cap is disposed on the end face of the sleeper, and adjacent sleeper end caps (11) are fixedly connected by the connecting steel plate (12).

3. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 1, characterized in that: The reinforcing component pile (2) includes a fixing member (21) and an elastic connector (22). One end of the fixing member (21) is fixedly connected to the ground below the track, and the other end is fixedly connected to the elastic connector (22). The elastic connector (22) is fixedly connected to the adjustable connecting rod (3). The elastic connector (22) provides tension force to the sleeper connection assembly (1) along the uphill direction of the track through the adjustable connecting rod (3).

4. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 3, characterized in that: The adjustable connecting rod (3) includes an adjustable connecting rod (31), an adjusting nut (32), and a tightening nut (33). One end of the adjusting nut (32) is fixedly connected to the sleeper connecting assembly (1), and the other end has an internal threaded hole. The two ends of the adjustable connecting rod (31) are a first external thread and a second external thread. The first external thread is fixedly connected to the internal threaded hole, and the second external thread is fixedly connected to the elastic connector (22). The adjusting nut (32) is located at the connection between the first external thread and the adjusting nut (32).

5. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 4, characterized in that: The elastic connector (22) includes a support (221), an outer semicircular component (222), an inner semicircular component (223), a spring (224), and a fastening device (225). One end of the support (221) is fixedly connected to the fastener (21), and the other end is fixedly connected to the outer semicircular component (222). The inner semicircular component (223) is disposed inside the outer semicircular component (222), and the spring (224) is disposed inside the inner semicircular component (225). Inside 3), the fastening device (225) is located on the end of the spring (224) away from the inner semicircular member (223). Both the outer semicircular member (222) and the inner semicircular member (223) have through holes that cooperate with the adjustable connecting rod (31). The adjustable connecting rod (31) passes through the outer semicircular member (222), the inner semicircular member (223) and the spring (224) in sequence and is fixedly connected to the fastening device (225).

6. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 5, characterized in that: The fastening device (225) includes a washer and a nut, the internal thread of the nut engaging with the external thread of the second external thread portion, and the washer being disposed between the nut and the spring (224).

7. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 5, characterized in that: The outer semicircular component (222) is a hollow spherical structure, which is cut off in the circumferential direction to form an opening.

8. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 1, characterized in that: The overall height of the reinforcing pile (2) does not exceed 20mm above the top surface of the track bed at both ends.

9. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 2, characterized in that: The shape of the sleeper end cap (11) is the same as that of the sleeper end, and the thickness is 5mm.

10. The reinforcement device for preventing downward displacement of tracks on steep slopes according to claim 2, characterized in that: The sleeper end cap (11) is fixedly connected to the end of the sleeper by expansion bolts.

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