Vibration absorption structure of high-speed train vibration reduction ballast bed

Abstract

The utility model discloses a vibration absorption structure of a high-speed train vibration reduction ballast bed, which belongs to the technical field of railway tracks, and is characterized by comprising two steel rails, a plurality of sleepers are fixedly connected between the bottoms of the two steel rails, and the bottoms of the sleepers are fixedly connected with buffer components. The bottom of the buffer assembly is fixedly connected with a plurality of fixing assemblies, each fixing assembly comprises a cone, and the interior of each cone is rotationally connected with a screw rod, so that the problem that a track is inconvenient to fix and limit by a vibration absorption structure of an existing high-speed rail train vibration reduction ballast bed, and the vibration absorption structure cannot be used for absorbing vibration in the actual railway track operation environment is solved. The problems that due to the fact that a rail fixing and limiting mechanism is lacked, when the rail bears impact force caused by high-speed running of a train for a long time, the problems of displacement, deformation and the like of the rail are possibly caused, then the running stability and safety of the train and the overall service life of a rail system are affected, and the practicability of the device is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of railway track technology, and in particular to a vibration absorption structure for a high-speed train vibration-damping track bed. Background Technology

[0002] With the rapid development of my country's rail transit, rail transit has increasingly profoundly affected our travel methods. While providing us with fast and safe travel, the vibration and noise problems it generates not only seriously affect the quality of life of surrounding residents, but also restrict the development of surrounding land.

[0003] Although some existing vibration-damping track bed structures use vibration-damping elements such as rubber pads and springs, they often have problems such as a narrow vibration-damping frequency range, insufficient durability, or inconvenient installation and maintenance.

[0004] An existing patent (publication number: CN208995841U) discloses a ballast track bed that, by simultaneously employing vibration damping pads and connecting fasteners with different inherent frequencies, not only can the safety of vehicle operation be guaranteed and resonance between the vibration damping pads and connecting fasteners be avoided, but also the deformation of the connecting fasteners can be used to reduce rail vibration while the elastic deformation and high damping characteristics of the vibration damping pads can be used to absorb vibration energy and isolate the transmission of vibration, thereby significantly improving the vibration reduction effect.

[0005] To address the aforementioned issues, existing patents offer solutions, but they are not convenient for fixing and restricting the track. In actual railway track operation environments, due to the lack of a track fixing and limiting mechanism, the track may experience displacement, deformation, and other problems when subjected to the impact force brought by high-speed train travel over a long period of time. This can affect the stability and safety of train operation, as well as the overall service life of the track system, thus reducing the practicality of the device.

[0006] To address this, a vibration absorption structure for high-speed train track bed vibration reduction is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a vibration absorption structure for high-speed train track slabs, which solves the problem that existing vibration absorption structures for high-speed train track slabs are not convenient for fixing and restricting the track. In the actual railway track operating environment, due to the lack of a track fixing and limiting mechanism, the track may experience displacement and deformation due to the impact force brought by the high-speed train running for a long time, which in turn affects the stability and safety of train operation and the overall service life of the track system, reducing the practicality of the device.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a vibration absorption structure for a high-speed train vibration-damping track bed, comprising two rails, with a plurality of sleepers fixedly connected between the bottoms of the two rails, a buffer assembly fixedly connected to the bottom of the sleepers, and a plurality of fixing assemblies fixedly connected to the bottom of the buffer assembly, the fixing assemblies comprising a cone, with a screw rotatably connected inside the cone, and positioning blocks movably connected to the four corners of the cone surface;

[0009] The buffer assembly includes a U-shaped concrete block. Several storage cylinders are fixedly connected to the bottom of the inner wall of the U-shaped concrete block. A spring is provided at the bottom of the inner wall of the storage cylinder. A movable block is fixedly connected to the top of the spring. A movable column is fixedly connected to the side of the movable block away from the spring. The top of the movable column extends to the top of the storage cylinder and is fixedly connected to a support plate. The top of the support plate is fixedly connected to the bottom of the sleeper.

[0010] Preferably, the screw has a slider threadedly connected to its surface, and a connecting plate is rotatably connected to each of the four corners of the slider surface. The side of the connecting plate away from the slider is rotatably connected to the side of the positioning block near the screw.

[0011] Preferably, a fixing block is fixedly connected to both sides of the top of the cone, and a fixing circular plate is fixedly connected between the tops of the two fixing blocks. A rotating ring is rotatably connected to the top of the inside of the fixing circular plate, and the bottom of the rotating ring extends into the inside of the cone and is fixedly connected to the screw.

[0012] Preferably, the cone has a fixing groove inside, and the screw is located inside the fixing groove. The four corners of the cone surface are provided with moving holes for use with positioning blocks, and the moving holes are connected to the fixing groove.

[0013] Preferably, a shock-absorbing pad is provided at the bottom of the U-shaped concrete block, and a layer of crushed stone is provided on top of the shock-absorbing pad.

[0014] Preferably, the storage cylinder has a moving groove inside for use with the moving block, and the side of the spring away from the moving block is fixedly connected to the bottom of the inner wall of the moving groove. The top of the storage cylinder has a fixing hole for use with the moving column, and the fixing hole communicates with the moving groove.

[0015] Preferably, a rubber buffer pad is fixedly connected to the bottom of the sleeper, and the surface of the rubber buffer pad is provided with anti-slip texture.

[0016] Preferably, the bottom of both sides of the sleeper is fixedly connected to a fixing plate, and the fixing plate is internally threaded with bolts.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By setting a fixing component, this application can increase the friction between the device and the ground, making the device more firmly connected, avoiding displacement, deformation, etc., ensuring the safety of train operation, and improving the stability of the device.

[0019] 2. By setting up a buffer component, this application can effectively absorb the shaking and impact force generated during train operation, which not only ensures the safety of vehicle operation, but also reduces the noise generated during train operation, avoids track damage caused by vibration, increases the service life of the track, and improves the ease of use of the device. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the vibration absorption structure of the high-speed train vibration reduction track bed of this utility model;

[0021] Figure 2 This is a front view of the vibration absorption structure of the high-speed train vibration reduction track bed of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the rail and the sleeper in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the buffer assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing component of this utility model.

[0025] In the diagram, 1. Rail; 2. Sleeper; 3. Buffer assembly; 301. U-shaped concrete block; 302. Storage cylinder; 303. Spring; 304. Moving block; 305. Moving column; 306. Support plate; 4. Fixing assembly; 401. Cone; 402. Screw; 403. Positioning block; 404. Slider; 405. Connecting plate; 406. Fixing block; 407. Fixing circular plate; 408. Rotating ring; 5. Fixing groove; 6. Moving hole; 7. Shock-absorbing pad; 8. Crushed stone layer; 9. Moving groove; 10. Fixing hole; 11. Rubber buffer pad; 12. Fixing plate; 13. Bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A vibration absorption structure for a high-speed train vibration reduction track bed includes two rails 1, a plurality of sleepers 2 are fixedly connected between the bottoms of the two rails 1, a buffer assembly 3 is fixedly connected to the bottom of the sleepers 2, and a plurality of fixing assemblies 4 are fixedly connected to the bottom of the buffer assembly 3. The fixing assembly 4 includes a cone 401, a screw 402 is rotatably connected inside the cone 401, and positioning blocks 403 are movably connected at the four corners of the surface of the cone 401.

[0029] The buffer assembly 3 includes a U-shaped concrete block 301. Several storage cylinders 302 are fixedly connected to the bottom of the inner wall of the U-shaped concrete block 301. A spring 303 is provided at the bottom of the inner wall of the storage cylinder 302. A moving block 304 is fixedly connected to the top of the spring 303. A moving column 305 is fixedly connected to the side of the moving block 304 away from the spring 303. The top of the moving column 305 extends to the top of the storage cylinder 302 and is fixedly connected to a support plate 306. The top of the support plate 306 is fixedly connected to the bottom of the sleeper 2.

[0030] In this embodiment: rotating the rotating ring 408 drives the screw 402 to rotate, causing the slider 404 and connecting plate 405 to move smoothly. Simultaneously, the connecting plate 405 communicates with the fixing groove 5 through the moving hole 6, allowing the positioning block 403 to move smoothly under the constraint of the moving hole 6. This increases the contact area between the cone 401 and the ground, making the connection more robust and ensuring the safety and durability of the entire structure in actual operating scenarios. It also improves the ease of use of the fixing component 4. Then, through the cooperation of the moving block 304 and the moving groove 9, the moving block 304 moves smoothly under the constraint of the moving groove 9. The spring 303 is moved and compressed steadily, while the spring 303 is connected to the moving groove 9 through the fixing hole 10. This allows the moving column 305 to return to its original position smoothly under the restriction of the fixing hole 10. This can buffer the impact force generated during train movement, avoid track damage caused by vibration, and improve the service life of the track. Then, under the action of the shock-absorbing pad 7, some of the impact force can be absorbed. At the same time, under the action of the crushed stone layer 8, the excess impact force can be further dispersed and buffered, so that the track bed is subjected to more uniform force, which enhances the track bed's resistance to impact and improves the safety of the device.

[0031] Specifically, such as Figure 5 As shown, a slider 404 is threadedly connected to the surface of the screw 402. A connecting plate 405 is rotatably connected to each of the four corners of the surface of the slider 404. The side of the connecting plate 405 away from the slider 404 is rotatably connected to the side of the positioning block 403 near the screw 402.

[0032] Specifically, such as Figure 5As shown, fixing blocks 406 are fixedly connected to both sides of the top of the cone 401, and a fixing circular plate 407 is fixedly connected between the tops of the two fixing blocks 406. A rotating ring 408 is rotatably connected to the top inside the fixing circular plate 407, and the bottom of the rotating ring 408 extends into the interior of the cone 401 and is fixedly connected to the screw 402.

[0033] Specifically, such as Figure 5 As shown, the cone 401 has a fixing groove 5 inside, and the screw 402 is located inside the fixing groove 5. The four corners of the cone 401 are provided with moving holes 6 for use with the positioning block 403, and the moving holes 6 are connected to the fixing groove 5.

[0034] In this embodiment: the rotating ring 408 drives the screw 402 to rotate, which in turn drives the slider 404 and the connecting plate 405 to move smoothly. At the same time, the moving hole 6 connects with the fixing groove 5, so that the connecting plate 405 drives the positioning block 403 to move smoothly under the restriction of the moving hole 6. This increases the contact area between the cone 401 and the ground, making the connection of the device more secure, ensuring the safety and durability of the entire structure in actual operation scenarios, and improving the ease of use of the fixing component 4.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a shock-absorbing pad 7 is provided at the bottom of the U-shaped concrete block 301, and a crushed stone layer 8 is provided on top of the shock-absorbing pad 7.

[0036] Specifically, such as Figure 4 As shown, the storage cylinder 302 has a moving groove 9 inside that works with the moving block 304, and the side of the spring 303 away from the moving block 304 is fixedly connected to the bottom of the inner wall of the moving groove 9. The top of the storage cylinder 302 has a fixing hole 10 that works with the moving column 305, and the fixing hole 10 is connected to the moving groove 9.

[0037] In this embodiment: the movable block 304 and the movable groove 9 work together to allow the movable block 304 to move smoothly under the restriction of the movable groove 9 and compress the spring 303. At the same time, the fixed hole 10 is connected to the movable groove 9, so that the spring 303 can drive the movable column 305 to return smoothly to its original position under the restriction of the fixed hole 10. This can buffer the impact force generated during the movement of the train, avoid track damage caused by vibration, and improve the service life of the track. Then, under the action of the shock-absorbing pad 7, some of the impact force can be absorbed. At the same time, under the action of the crushed stone layer 8, the excess impact force can be further dispersed and buffered, so that the track bed is more evenly stressed, enhancing the track bed's ability to resist impact and improving the safety of the device.

[0038] Specifically, such as Figure 1, Figure 3 As shown, a rubber buffer pad 11 is fixedly connected to the bottom of the sleeper 2, and the surface of the rubber buffer pad 11 is provided with anti-slip texture.

[0039] Specifically, such as Figure 2 , Figure 3 As shown, the bottom of both sides of the sleeper 2 is fixedly connected to a fixing plate 12, and the fixing plate 12 is internally threaded with bolts 13.

[0040] In this embodiment, the use of the fixing plate 12 and the bolt 13 allows the bolt 13 to pass through the fixing plate 12 and the support plate 306 for threaded connection, which makes the sleeper 2 more firmly connected. At the same time, under the action of the rubber buffer pad 11, the friction between the sleeper 2 and the support plate 306 can be increased, and a part of the impact force can be effectively dispersed and offset, avoiding displacement, deformation and other phenomena, ensuring the safety of train operation and improving the stability of the device.

[0041] Working Principle: When the high-speed train is in operation, the rotating ring 408 drives the screw 402 to rotate, which in turn drives the slider 404 and the connecting plate 405 to move smoothly. At the same time, the moving hole 6 connects with the fixed groove 5, allowing the connecting plate 405 to drive the positioning block 403 to move smoothly under the constraint of the moving hole 6. This increases the contact area between the cone 401 and the ground, making the connection of the device more secure and ensuring the safety and durability of the entire structure in actual operation. Furthermore, the use of the fixing plate 12 and the bolt 13, with the bolt 13 threaded through the fixing plate 12 and the support plate 306, makes the connection of the sleeper 2 more secure. At the same time, the rubber buffer pad 11 increases the friction between the sleeper 2 and the support plate 306, effectively dispersing and offsetting some of the impact. The track bed is designed to withstand impacts, preventing displacement and deformation, thus ensuring the safety of train operation. When an impact occurs during train operation, the impact force is transmitted through the sleeper 2 to the support plate 306, causing the moving column 305 to move. Simultaneously, the moving block 304 moves smoothly under the constraint of the moving groove 9 and compresses the spring 303. Under the action of the spring 303, it generates a reaction force, causing the moving column 305 to smoothly return to its original position under the constraint of the fixing hole 10. This buffers the impact force generated during train movement, preventing track damage caused by vibration. Then, under the action of the shock-absorbing pad 7, some of the impact force can be absorbed. At the same time, under the action of the crushed stone layer 8, the excess impact force can be further dispersed and buffered, thereby making the track bed more evenly stressed and enhancing its impact resistance.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vibration absorption structure for a high-speed train track bed, comprising two rails (1), characterized in that: Several sleepers (2) are fixedly connected between the bottoms of two rails (1). A buffer assembly (3) is fixedly connected to the bottom of the sleeper (2), and several fixing assemblies (4) are fixedly connected to the bottom of the buffer assembly (3). The fixing assembly (4) includes a cone (401). A screw (402) is rotatably connected inside the cone (401), and a positioning block (403) is movably connected to the four corners of the surface of the cone (401). The buffer assembly (3) includes a U-shaped concrete block (301). Several storage cylinders (302) are fixedly connected to the bottom of the inner wall of the U-shaped concrete block (301). A spring (303) is provided at the bottom of the inner wall of the storage cylinder (302). A moving block (304) is fixedly connected to the top of the spring (303). A moving column (305) is fixedly connected to the side of the moving block (304) away from the spring (303). The top of the moving column (305) extends to the top of the storage cylinder (302) and is fixedly connected to a support plate (306). The top of the support plate (306) is fixedly connected to the bottom of the sleeper (2).

2. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: The screw (402) is threadedly connected to a slider (404), and a connecting plate (405) is rotatably connected to each of the four corners of the slider (404). The side of the connecting plate (405) away from the slider (404) is rotatably connected to the side of the positioning block (403) near the screw (402).

3. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: Both sides of the top of the cone (401) are fixedly connected to fixing blocks (406), and a fixing circular plate (407) is fixedly connected between the tops of the two fixing blocks (406). A rotating ring (408) is rotatably connected to the top of the inside of the fixing circular plate (407), and the bottom of the rotating ring (408) extends into the inside of the cone (401) and is fixedly connected to the screw (402).

4. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: The cone (401) has a fixing groove (5) inside, and the screw (402) is located inside the fixing groove (5). The cone (401) has a moving hole (6) at each of its four corners that is used to cooperate with the positioning block (403), and the moving hole (6) is connected to the fixing groove (5).

5. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: The bottom of the U-shaped concrete block (301) is provided with a shock-absorbing pad (7), and the top of the shock-absorbing pad (7) is provided with a crushed stone layer (8).

6. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: The storage cylinder (302) has a moving groove (9) inside for use with the moving block (304), and the side of the spring (303) away from the moving block (304) is fixedly connected to the bottom of the inner wall of the moving groove (9). The top of the storage cylinder (302) has a fixing hole (10) for use with the moving column (305), and the fixing hole (10) is connected to the moving groove (9).

7. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: The bottom of the sleeper (2) is fixedly connected to a rubber buffer pad (11), and the surface of the rubber buffer pad (11) is provided with anti-slip texture.

8. The vibration absorption structure for high-speed train vibration-damping track bed according to claim 1, characterized in that: The bottom of both sides of the sleeper (2) is fixedly connected to a fixing plate (12), and the fixing plate (12) is internally threaded with a bolt (13).

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