Rail damping and noise reduction system for urban rail transit

Abstract

The present application belongs to the field of rail transit, and discloses a rail damping and noise reduction system for urban rail transit, which comprises a rail laid on the top of a sleeper for realizing the movement of a subway, a reinforcing component, a connecting component and a damping component. The rail damping and noise reduction system for urban rail transit has the advantages that when the rail fluctuates up and down, the rail fluctuating up and down controls the two pressing plates to approach or move away from each other through the pressing strip, the two pressing plates approaching each other both limit the rail by the side plates, the stability of the rail on the top of the sleeper is improved, and the pressing plates moving away from each other avoid the vibrating rail from rapidly vibrating the side plates, so that the vibration damage of the side plates is reduced.

Description

Technical Field

[0001] This invention belongs to the field of rail transit technology, and specifically relates to a rail vibration reduction and noise reduction system for urban rail transit. Background Technology

[0002] While urban rail transit brings convenience to people's travel, the wheel-rail coupling vibration also brings vibration and noise pollution problems to surrounding buildings. Existing technologies, such as Chinese patent CN214383866U, disclose a railway rail vibration damping fastener. This device, through the design of elastic fasteners with rings at both ends, serves as a rail fastener, not only fixing the rail but also having a vibration damping effect, reducing noise generated by the rail. Furthermore, the tighter the fastening force becomes as the rail load increases, improving the installation stability of the rail. However, with prolonged use, the fixing bolts of the railway rail vibration damping fastener gradually loosen, leading to a gradual decrease in the fixing effect on the support plate and affecting the support of the railway rail. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a rail vibration reduction and noise reduction system for urban rail transit, thereby solving the issues raised in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A vibration reduction and noise reduction system for urban rail transit rails includes: rails, laid on top of sleepers for enabling subway movement; reinforcing components including: pressure plates, placed on top of sleepers for supporting the rails; connecting components, installed on the pressure plates for limiting the rails on top of the pressure plates; pressure strips, fixed to the bottom surface of the rails, the pressure strips controlling the two pressure plates to move closer or further apart as the rails move up and down; two side plates are provided on the outer side of the top surface of the pressure plates, and the pressure plates are provided with pushing components corresponding to the pressure strips, the pushing components including: inner pressure strips, outer pressure strips, connecting rods and elastic components, the downward movement of the pressure strips causes the inclined surface to slide on the first inclined surface, at which time the inner pressure strips use the connecting rods to pull the outer pressure strips to squeeze the pressure plates, and the outer pressure strips pull the side plates of the pressure plates to fit tightly against the rails; and vibration reduction components, placed on top of sleepers, to reduce the vibration of the rails during their up-and-down movement.

[0005] Furthermore, the connecting component includes: a rotating plate, which is rotatably mounted on the top surface of the pressure plate and cooperates with the bolt component to limit the rail; and a crossbar, which is used to realize the rotation and movement of the rotating plate.

[0006] Furthermore, the pressure plate is provided with a pushing component corresponding to the pressure strip. The pushing component includes: an inner pressure strip, which moves vertically to bring the inner pressure strip closer to or away from the pressure plate; and an outer pressure strip, which is connected to the inner pressure strip by a connecting rod and, under the constraint of the vertically moving pressure strip, causes the inner pressure strip to reciprocate in the horizontal direction.

[0007] Furthermore, under the elastic force constraint of the first elastic element, the elastic element is reciprocated in the horizontal direction by means of the collar.

[0008] Furthermore, the pressure plate has an inner groove inside that is suitable for the horizontal movement of the collar, providing space for the collar to move.

[0009] Furthermore, the vibration damping component includes: a buffer frame, which provides vertical vibration damping for the rail under the elastic support of the second elastic element; and a sleeve, which is slidably sleeved on the outside of the buffer frame. Furthermore, the sleeper is provided with a sliding groove to facilitate the movement of the sleeve, and the inner pressure bar that moves back and forth in the horizontal direction pushes the sleeve to move through the buffer frame.

[0010] Furthermore, the groove is provided with an inner rod that limits the sleeve, and the two sleeves can move closer or further apart under the cooperation of the elastic force of the third elastic element and the inner pressure strip.

[0011] The technical effects and advantages of this invention are as follows: 1. This invention utilizes the movement of a train to cause the rails to fluctuate up and down. The fluctuating rails are controlled by pressure strips to move two pressure plates closer to each other or further apart. The two pressure plates that move closer to each other use side plates to constrain the rails, improving the stability of the rails on the top of the sleepers. The pressure plates that move further apart prevent the vibrating rails from rapidly vibrating the side plates, reducing vibration damage to the side plates.

[0012] 2. In this invention, when the running subway causes the rails to fluctuate up and down, the downward-moving rails compress the buffer frame. Under the impact force, the buffer frame causes the semi-circular rod to move downward at the center of the sleeve frame. The buffer frame and the sleeve frame work together to compress the second elastic element. When the rails move upward, the elastic force of the second elastic element ensures that the top surface of the buffer frame is always in contact with the bottom surface of the rail. The elastic force of the second elastic element provides a vertical vibration reduction effect for the rails, thereby reducing the noise generated by the rails. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of the urban rail transit rail vibration reduction and noise reduction system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall rail according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the pressure plate placed on top of the sleeper according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall pressure plate according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the inner pressure strip connected to the inner end of the connecting rod according to an embodiment of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the pressure plate according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the overall collar according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the buffer frame penetrating the sleeve according to an embodiment of the present invention; In the diagram: 1. Rail; 101. Rail base; 102. Screw; 103. Nut; 104. Side plate; 2. Sleeper; 3. Pressure plate; 301. Side plate; 4. Pressure strip; 401. Inclined surface; 5. Rotating plate; 6. Crossbar; 7. Inner pressure strip; 701. First inclined surface; 702. Second inclined surface; 8. Outer pressure strip; 9. Connecting rod; 10. Collar; 11. First elastic element; 12. Inner groove; 121. Limiting rod; 13. Second elastic element; 14. Sleeve; 141. Semicircular rod; 142. Circular plate; 15. Slide groove; 16. Inner rod; 17. Third elastic element. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0015] This invention provides a vibration reduction and noise reduction system for urban rail transit rails, such as... Figures 1 to 5 As shown, it includes: a rail 1, two rails 1 arranged side by side in parallel, and both rails 1 are installed on top of sleepers 2 by reinforcing components. The rail 1 includes a rail strip, a rail web and a rail base 101. The rail web is located between the rail strip and the rail base 101. The width of the rail base 101 is greater than the width of the rail strip. When the subway moves on the top surface of the rail strip by the wheels, the rail 1 is constrained by the reinforcing components.

[0016] The reinforcing components include: pressure plate 3, connecting components, pressure strips 4, and shock-absorbing components. The pressure plate 3 is a rectangular strip plate. Two pressure plates 3 are set as a group. A group of pressure plates 3 are placed side by side at the bottom of a single rail 1, and the bottom surface of the rail base 101 of the rail 1 is in contact with the top surface of the pressure plate 3. The two pressure plates 3 on the top of the sleeper 2 cooperate to support the rail 1. Two parallel pressure strips 4 are installed on the bottom surface of the rail 1. The cross-sectional structure of the pressure strip 4 is set as an inverted right trapezoid. The two pressure strips 4 are set opposite to each other. The inner surface of the pressure strip 4 is set as an inclined surface 401. The distance between the two inclined surfaces 401 increases from top to bottom.

[0017] In this embodiment, the distance between the two pressure plates 3 is adjusted according to the width of the rail base 101 until the rail 1 is placed on top of the pressure plates 3. Then, the connection between the pressure plates 3 and the rail 1 is achieved using connecting components. Figures 1 to 4In the middle, the connecting components include: a rotating plate 5, a spiral component and a crossbar 6. Two side plates 301 are provided on the outer side of the top surface of the pressure plate 3, and two rotating plates 5 are provided on the top of the pressure plate 3. The two rotating plates 5 correspond one-to-one with the two side plates 301. The crossbar 6 passes through the top of the side plate 301 and the bottom of the rotating plate 5. The bottom of the rotating plate 5 is sleeved on the surface of the crossbar 6. While the bottom of the rotating plate 5 rotates on the surface of the crossbar 6, the rotating plate 5 can also move on the surface of the crossbar 6.

[0018] The spiral component, in conjunction with the rotating plate 5, restricts the rail 1. The spiral component includes a screw 102 and a nut 103. The bottom end of the screw 102 is fixed to the top surface of the sleeper 2, and the nut 103 is spirally fitted onto the top end of the screw 102. The pressure plate 3, the rail base 101, and the rotating plate 5 all have mounting grooves corresponding to the screw 102. The pressure plate 3 is placed on the top surface of the sleeper 2 through the mounting groove. When the rail 1 is placed on the top surface of the pressure plate 3, the screw 102 penetrates the mounting groove of the rail base 101 until the bottom surface of the rail 1 is in contact with the top surface of the pressure plate 3. This pushes the rotating plate 5 to move on the surface of the crossbar 6 until the mounting groove on the surface of the rotating plate 5 corresponds to the screw 102. The rotating plate 5 is then rotated until its bottom surface is in contact with the top surface of the rail base 101. The nut 103 is spirally fitted onto the top end of the screw 102 until its bottom surface is in contact with the top surface of the rotating plate 5. The spiral component effectively restricts the rail 1.

[0019] When the subway runs on top of rail 1, the movement of the subway causes rail 1 to oscillate up and down on top of sleeper 2. This oscillation of rail 1, through the cooperation of pressure strip 4 and pushing component, causes the two pressure plates 3 to move closer or further apart. Figures 2 to 5 In the middle, the pushing component includes: inner pressure strip 7, outer pressure strip 8, connecting rod 9 and elastic component. The outer pressure strip 8 is located on the outer side of the pressure plate 3. Both ends of the inner side of the outer pressure strip 8 are connected to the inner pressure strip 7 by the connecting rod 9. The two inner pressure strips 7 are arranged opposite each other and do not contact each other. At this time, the bottom of a single pressure strip 4 corresponds to two inner pressure strips 7. The outer side of the inner pressure strip 7 is provided with a first inclined surface 701. The inclined surface 401 of the pressure strip 4 corresponds to the first inclined surface 701.

[0020] When the rail 1 causes the pressure strip 4 to move downward, the pressure strip 4 moves downward using the inclined surface 401 on the surface of the first inclined surface 701. At this time, the inclined surface 401 and the first inclined surface 701 are misaligned. The downward-moving pressure strip 4 causes the inner pressure strip 7 to move away from the pressure plate 3. The inward-moving inner pressure strip 7 uses the connecting rod 9 to pull the outer pressure strip 8 closer to the pressure plate 3. The moving connecting rod 9 squeezes the elastic component until the inner side of the outer pressure strip 8 is in contact with the outer side of the pressure plate 3. The inward-moving outer pressure strip 8 pushes the pressure plate 3 to move. The pressure plate 3 moves on the surface of the screw 102 using the placement groove until the inner side of the side plate 301 is in contact with the side of the rail base 101. Under the misaligned movement of the pressure strip 4 and the inner pressure strip 7, the pressure plate 3 uses the side plate 301 to squeeze the side of the rail base 101, improving the stability of the rail 1 on the top of the sleeper 2.

[0021] In this embodiment, the horizontal movement of the inner pressure bar 7 is achieved through an elastic component. Figure 3 , Figure 6 and Figure 7 In the process, the elastic component includes: a collar 10, a first elastic element 11, and an inner groove 12. The first elastic element 11 is configured as a spring. The pressure plate 3 has an inner groove 12 that is adapted to allow the collar 10 to move horizontally. The connecting rod 9 passes through the center of the inner groove 12. At this time, the collar 10 is spirally sleeved on the surface of the connecting rod 9. Two parallel limiting rods 121 are provided inside the inner groove 12. Side plates 104 are fixed on both sides of the collar 10. The two side plates 104 correspond one-to-one with the two limiting rods 121. The limiting rods 121 pass through the center of the side plates 104. The inner end of the first elastic element 11 is connected to the outer side of the side plates 104, and the outer end of the first elastic element 11 is connected to the outer side of the inner groove 12. The first elastic element 11 is sleeved on the surface of the limiting rods 121.

[0022] When the pressure strip 4 moves downward on the surface of the first inclined surface 701 using the inclined surface 401, the pressure of the inclined surface 401 on the first inclined surface 701 causes the inner pressure strip 7 to move away from the pressure plate 3. The inner pressure strip 7 moves inside the inner groove 12 by pulling the collar 10 using the connecting rod 9. At this time, the side plate 104 pulls the first elastic element 11 while sliding on the surface of the limiting rod 121 until the inner side of the outer pressure strip 8 is in contact with the outer side of the pressure plate 3. The pressure strip 4 moves away from the inner pressure strip 7. The elastic force of the first elastic element 11 uses the collar 10 to make the connecting rod 9 pull the inner pressure strip 7 closer to the pressure plate 3. Under the limitation of the pressure strip 4 moving in the vertical direction, the inner pressure strip 7 moves back and forth in the horizontal direction.

[0023] When the subway runs on rail 1, vibration damping components are used to buffer the vertical fluctuations of rail 1. Figure 1 , Figure 3 and Figure 8 In the middle, the vibration damping component includes: a buffer frame, a second elastic element 13, a sleeve 14, and a slide 15. The second elastic element 13 is set as a spring. The sleeve 14 is vertically inserted into the slide 15. The buffer frame vertically penetrates the sleeve 14. The buffer frame includes two opposing semi-circular rods 141. The top and bottom ends of the two semi-circular rods 141 are fixed with circular plates 142. The semi-circular rods 141 penetrate the sleeve 14. The top end of the second elastic element 13 is connected to the bottom surface of the top circular plate 142. The bottom end of the second elastic element 13 is connected to the top surface of the sleeve 14. The elastic force of the second elastic element 13 makes the top surface of the buffer frame fit against the bottom surface of the rail 1.

[0024] When the running subway causes the rail 1 to fluctuate up and down, the downward-moving rail 1 squeezes the buffer frame. Under the impact force, the buffer frame causes the semi-circular rod 141 to move down at the center of the sleeve 14. The buffer frame and the sleeve 14 cooperate to squeeze the second elastic element 13. When the rail 1 moves up, the elastic force of the second elastic element 13 makes the top surface of the buffer frame always in contact with the bottom surface of the rail 1. The elastic force of the second elastic element 13 provides a vertical vibration reduction effect for the rail 1, thereby reducing the noise generated by the rail 1.

[0025] In this embodiment, when the lowered rail 1 moves the inner pressure bar 7 away from the pressure plate 3, the inner pressure bar 7 pushes the vibration damping component to move inside the slide groove 15. The slide groove 15 is provided with an inner rod 16 that limits the sleeve 14. A third elastic element 17 is sleeved on the surface of the inner rod 16. The third elastic element 17 is set as a spring. The two sleeves 14 are connected by the third elastic element 17. The elastic force of the third elastic element 17 makes the sleeve 14 located at the end of the slide groove 15. A second inclined surface 702 is provided on the inner side of the inner pressure bar 7, and the outer side of the circumference of the semi-circular rod 141 is in contact with the second inclined surface 702 of the inner pressure bar 7.

[0026] When the inner pressure strip 7 moves away from the pressure plate 3, the moving inner pressure strip 7 slides on the surface of the semi-circular rod 141 using the second inclined surface 702. Under the push of the inner pressure strip 7, the semi-circular rod 141 drives the sleeve 14 to move inside the slide groove 15. At this time, the two sleeves 14 approach each other and cooperate to press the third elastic element 17, which further absorbs the vibration of the rail 1. When the rail 1 drives the pressure strip 4 away from the inner pressure strip 7, the third elastic element 17 causes the two sleeves 14 to move away from each other. With the cooperation of the semi-circular rod 141 and the second inclined surface 702, the moving sleeve 14 causes the inner pressure strip 7 to approach the pressure plate 3 until the outer side of the inner pressure strip 7 is in contact with the pressure plate 3. At this time, the elastic force of the third elastic element 17 causes the pressure plate 3 to move, and the two pressure plates 3 move away from each other.

[0027] When the rail 1 moves upward, the rail 1 drives the pressure strip 4 away from the inner pressure strip 7. The elastic force of the elastic component uses the connecting rod 9 to make the inner pressure strip 7 approach the pressure plate 3. The elastic force of the third elastic component 17 makes the pressure plate 3 move. At this time, the two pressure plates 3 move away from each other, and the side plate 301 moves away from the rail 1.

[0028] When the moving train causes the rail 1 to fluctuate up and down, the two pressure plates 3 are controlled by the pressure strip 4 to move closer or further apart. The two pressure plates 3 that move closer together use the side plate 301 to limit the rail 1. The pressure plates 3 that move further apart prevent the vibrating rail 1 from vibrating the side plate 301 quickly, thereby reducing vibration damage to the side plate 301.

[0029] Working principle of this invention: Reference Figures 1 to 8As shown, the distance between the two pressure plates 3 is adjusted according to the width of the rail base 101 until the rail 1 is placed on top of the pressure plate 3, and until the bottom surface of the rail 1 is in contact with the top surface of the pressure plate 3. The rotating plate 5 is pushed to move on the surface of the crossbar 6 until the mounting groove on the surface of the rotating plate 5 corresponds to the screw 102. The rotating plate 5 is rotated until the bottom surface of the rotating plate 5 is in contact with the top surface of the rail base 101. The nut 103 is screwed onto the top of the screw 102 until the bottom surface of the nut 103 is in contact with the top surface of the rotating plate 5. The rail 1 is constrained by the screw component.

[0030] When the rail 1 causes the pressure strip 4 to move downward, the pressure strip 4 moves downward using the inclined surface 401 on the surface of the first inclined surface 701. At this time, the inclined surface 401 and the first inclined surface 701 are misaligned. The downward-moving pressure strip 4 causes the inner pressure strip 7 to move away from the pressure plate 3. The inward-moving inner pressure strip 7 uses the connecting rod 9 to pull the outer pressure strip 8 closer to the pressure plate 3. The moving connecting rod 9 squeezes the elastic component until the inner side of the outer pressure strip 8 is in contact with the outer side of the pressure plate 3. The inward-moving outer pressure strip 8 pushes the pressure plate 3 to move. The pressure plate 3 moves on the surface of the screw 102 using the placement groove until the inner side of the side plate 301 is in contact with the side of the rail base 101. Under the misaligned movement of the pressure strip 4 and the inner pressure strip 7, the pressure plate 3 uses the side plate 301 to squeeze the side of the rail base 101, improving the stability of the rail 1 on the top of the sleeper 2.

[0031] When rail 1 moves upward, rail 1 moves pressure strip 4 away from inner pressure strip 7. The elastic force of the elastic component, through connecting rod 9, causes inner pressure strip 7 to move closer to pressure plate 3. The elastic force of the third elastic component 17 causes pressure plate 3 to move. At this time, the two pressure plates 3 move away from each other, and side plate 301 moves away from rail 1. When the moving train causes rail 1 to fluctuate up and down, the fluctuating rail 1 controls the two pressure plates 3 to move closer or further apart through pressure strip 4. The two pressure plates 3 that move closer together use side plate 301 to limit rail 1, while the pressure plates 3 that move further apart prevent the vibrating rail 1 from rapidly vibrating side plate 301, reducing vibration damage to side plate 301.

[0032] When the pressure strip 4 moves downward on the surface of the first inclined surface 701 using the inclined surface 401, the pressure of the inclined surface 401 on the first inclined surface 701 causes the inner pressure strip 7 to move away from the pressure plate 3. The inner pressure strip 7 moves inside the inner groove 12 by pulling the collar 10 using the connecting rod 9. At this time, the side plate 104 pulls the first elastic element 11 while sliding on the surface of the limiting rod 121 until the inner side of the outer pressure strip 8 is in contact with the outer side of the pressure plate 3. The pressure strip 4 moves away from the inner pressure strip 7. The elastic force of the first elastic element 11 uses the collar 10 to make the connecting rod 9 pull the inner pressure strip 7 closer to the pressure plate 3. Under the limitation of the pressure strip 4 moving in the vertical direction, the inner pressure strip 7 moves back and forth in the horizontal direction.

[0033] When the running subway causes the rail 1 to fluctuate up and down, the downward-moving rail 1 squeezes the buffer frame. Under the impact force, the buffer frame causes the semi-circular rod 141 to move down at the center of the sleeve 14. The buffer frame and the sleeve 14 cooperate to squeeze the second elastic element 13. When the rail 1 moves up, the elastic force of the second elastic element 13 makes the top surface of the buffer frame always in contact with the bottom surface of the rail 1. The elastic force of the second elastic element 13 provides a vertical vibration reduction effect for the rail 1.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A vibration reduction and noise reduction system for urban rail transit rails, characterized in that, include: Railway sleepers (2); The rail (1) is laid on top of the sleeper (2) to enable the subway to move; The reinforcing component, including the pressure plate (3), is placed on top of the sleeper (2) to support the rail (1). A connecting component, mounted on the pressure plate (3), is used to define the rail (1) on the top of the pressure plate (3). The pressure strip (4) is fixed to the bottom surface of the rail (1). The rail (1) moves up and down, and the pressure strip (4) controls the two pressure plates (3) to move closer or further apart. The inner side of the pressure strip (4) is set as an inclined surface (401). The outer side of the top surface of the pressure plate (3) is provided with two side plates (301). The pressure plate (3) is provided with a pushing component corresponding to the pressure strip (4). The pushing component includes an inner pressure strip (7), an outer pressure strip (8) and a connecting rod (9). The outer side of the inner pressure strip (7) is provided with a first inclined surface (701). The downward pressure strip (4) causes its own inclined surface (401) to slide on the first inclined surface (701) of the inner pressure strip (7). At this time, the inner pressure strip (7) uses the connecting rod (9) to pull the outer pressure strip (8) to squeeze the pressure plate (3). The outer pressure strip (8) pulls the side plate (301) of the pressure plate (3) to stick tightly to the rail (1). The vibration damping component is placed on top of the sleeper (2) to achieve vibration damping of the rail (1) during the up-and-down movement of the rail (1).

2. The urban rail transit rail vibration reduction and noise reduction system according to claim 1, characterized in that: The connecting component includes: A rotating plate (5) is rotatably mounted on the top surface of the pressure plate (3) and cooperates with bolt components to limit the rail (1); The crossbar (6) is used to enable the rotation and movement of the rotating plate (5).

3. The urban rail transit rail vibration reduction and noise reduction system according to claim 1, characterized in that: The vertically moving pressure bar (4) causes the inner pressure bar (7) to move closer to or further away from the pressure plate (3); the outer pressure bar (8) is connected to the inner pressure bar (7) by the connecting rod (9); the pushing component also includes an elastic component, which, under the constraint of the vertically moving pressure bar (4), causes the inner pressure bar (7) to reciprocate in the horizontal direction.

4. The urban rail transit rail vibration reduction and noise reduction system according to claim 3, characterized in that: The elastic component includes a collar (10), a first elastic element (11), and an inner groove (12). Under the elastic force of the first elastic element (11), the inner pressure bar (7) is reciprocated in the horizontal direction through the collar (10).

5. The urban rail transit rail vibration reduction and noise reduction system according to claim 4, characterized in that: The pressure plate (3) has an inner groove (12) inside that is suitable for the horizontal movement of the collar (10), providing space for the collar (10) to move.

6. The urban rail transit rail vibration reduction and noise reduction system according to claim 3, characterized in that: The vibration damping components include: a buffer frame, a second elastic element (13), a sleeve (14), and a slide (15). The buffer frame, under the elastic support of the second elastic element (13), provides vertical vibration reduction for the rail (1); The sleeve (14) is slidably sleeved on the outside of the buffer frame.

7. The urban rail transit rail vibration reduction and noise reduction system according to claim 6, characterized in that: The sleeper (2) is provided with a sliding groove (15) to facilitate the movement of the sleeve (14). The inner pressure bar (7) that moves back and forth in the horizontal direction pushes the sleeve (14) to move through the buffer frame.

8. The urban rail transit rail vibration reduction and noise reduction system according to claim 7, characterized in that: The groove (15) is provided with an inner rod (16) that limits the sleeve (14). A third elastic element (17) is sleeved on the surface of the inner rod (16). The two sleeves (14) are connected by the third elastic element (17). Under the cooperation of the elastic force of the third elastic element (17) and the inner pressure strip (7), the two sleeves (14) can move closer or further apart.

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