A floating slab track vibration isolator damping spring structure provided with a damping adjustment mechanism

Abstract

The utility model discloses a kind of floating slab track vibration isolator damping spring structures with damping adjustment mechanism, it is related to track damping field, including base, the base top is connected with top plate, damping spring is connected between the base and top plate, ceramic friction pad is tightly attached on fixed cylinder inner wall, movable column is fixed in the bottom of upper connecting block, the surface of fixed cylinder is fixed with radiating fin, the side surface of lower connecting block and upper connecting block is provided with telescopic groove.The floating slab track vibration isolator damping spring structure with damping adjustment mechanism, the efficiency of the delayed rotation of damping rotation block two and rotation block one of damping shaft will be delayed, to relieve the impact force generated by top plate, and the structure of damping shaft can be loose and tight adjustment, the strength of vibration isolator damping can be adjusted according to the need of use, after lower connecting block and upper connecting block slide out from inside sliding groove, it can be separated and disassembled with base and top plate, improve the efficiency of track vibration isolator maintenance.

Description

Technical Field

[0001] This utility model relates to the field of track vibration reduction technology, specifically a damping spring structure for a floating plate track vibration isolator equipped with a damping adjustment mechanism. Background Technology

[0002] Track vibration reduction is a technology that reduces the transmission of vibration and noise in rail transit through material, structural or system design. It aims to balance driving safety and ride comfort. Through elastic elements, the impact kinetic energy of the wheel and rail is converted into elastic potential energy and dissipated, reducing the vibration energy transmitted to the foundation. The track elastic elements are usually track vibration isolators, while floating slabs are the core components of the rail transit vibration reduction and noise reduction system. They are the vibration damping beds under the track, specifically designed to alleviate the vibration and noise generated by the vehicle.

[0003] Currently, track vibration isolators still have some shortcomings, such as aging of the isolator springs and difficulties in maintenance.

[0004] To overcome the difficulty of maintaining vibration isolators, a prior art Chinese patent (publication number: CN219032786U) discloses a floating slab track vibration isolator. This isolator uses a rubber barrel. Since springs are prone to rusting and aging in high-humidity underground environments, a steel cap seals the barrel. Vacuum extraction removes air from the rubber barrel, slowing down spring aging and extending its lifespan. Furthermore, the floating slab is supported by first, second, third, and fourth support springs, making it easier to remove the damping springs. This simplifies maintenance and provides greater convenience for maintenance workers.

[0005] However, the track vibration isolators currently in use still have certain shortcomings. The track vibration isolators mentioned above slow down the aging of springs by evacuating air, thus improving the service life of the isolators. However, the damping structure of the isolators is relatively simple, with only the damping springs providing buffering. When material fatigue occurs, the damping effect of the isolators will decrease. Furthermore, with the reduced damping effect, the other springs in the isolators are prone to elastic vibration, which in turn affects the stability of the track. Therefore, it is necessary to improve the existing structure. Utility Model Content

[0006] The purpose of this utility model is to provide a damping spring structure for a floating slab track isolator with a damping adjustment mechanism, so as to solve the problems of insufficient damping effect of track isolators and difficulty in maintenance after the isolator is damaged, as mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a damping spring structure for a floating slab track vibration isolator equipped with a damping adjustment mechanism, comprising a base, a top plate connected to the top of the base, and a shock-absorbing spring connected between the base and the top plate.

[0008] The base surface is connected to three lower connecting blocks. The top of the lower connecting blocks is rotatably connected to a rotating block one, the top of the rotating block one is rotatably connected to a rotating block two, a damping shaft is installed between the rotating block two and the rotating block one, and a buffer mechanism to improve the damping effect of the vibration isolator is provided on the top of the lower connecting blocks.

[0009] Furthermore, the buffer mechanism includes an upper connecting block that rotates on top of the second rotating block, the upper connecting block being connected to the bottom of the top plate, and a fixed cylinder fixed to the lower connecting block near the top of the first rotating block.

[0010] Furthermore, a movable column is movably connected through the inside of the fixed cylinder, and a ceramic friction plate is connected to the surface of the movable column. The ceramic friction plate is tightly attached to the inner wall of the fixed cylinder. The movable column is fixed to the bottom of the upper connecting block, and heat dissipation fins are fixed to the surface of the fixed cylinder.

[0011] Furthermore, a rubber pad is connected to the center of the bottom of the top plate, and a rubber cylinder is telescopically connected between the top plate and the base, with airflow holes opened on the surface of the rubber cylinder.

[0012] Furthermore, the base surface and the bottom of the top plate are provided with sliding grooves, and the sliding grooves are provided with a mechanism for convenient maintenance and disassembly of the vibration isolator. The disassembly and assembly mechanism includes a locking groove on the side of the sliding groove.

[0013] Furthermore, the lower connecting block and the upper connecting block have telescopic grooves on their sides, and a locking block is movably connected inside the telescopic grooves. A pull rod is fixed to the side of the locking block.

[0014] Furthermore, the pull rod slides through the telescopic groove, a spring connects the locking block and the telescopic groove, and the locking block and the locking groove are engaged.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The damping spring structure of the floating plate track isolator equipped with a damping adjustment mechanism, through the damping rotating block two and rotating block one of the damping shaft, delays the rotation efficiency, thereby alleviating the impact force generated by the top plate. Furthermore, the structure of the damping rotating shaft can be adjusted in tightness, so that the damping strength of the isolator can be adjusted according to the needs of use. After the lower connecting block and the upper connecting block slide out of the sliding groove, they can be separated and disassembled from the base and the top plate, which improves the maintenance efficiency of the track isolator.

[0017] 2. A damping shaft is provided, which can increase the resistance to the rotation of rotating block 2 and rotating block 1, thereby improving the damping effect of the vibration isolator. Furthermore, the damping shaft is adjustable, so it can be adjusted according to the needs of the application scenario, thus improving the ease of use.

[0018] 3. It is equipped with heat dissipation fins, which can absorb the heat generated by the fixed cylinder, thereby improving the heat dissipation effect of the fixed cylinder, preventing heat accumulation in the fixed cylinder from affecting the damping effect of the ceramic friction plate, and further improving the damping function of the vibration isolator.

[0019] 4. A locking block is provided. The locking block can be positioned with the locking slot by locking, which can facilitate the disassembly of the lower connecting block and the upper connecting block from the base and the top plate, thus improving the efficiency of later maintenance of the vibration isolator. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model;

[0022] Figure 3 This is an enlarged three-dimensional structural diagram of the base of this utility model;

[0023] Figure 4 This is an enlarged three-dimensional structural diagram of the rubber pad of this utility model;

[0024] Figure 5 This is an enlarged three-dimensional structural diagram of the heat dissipation fins of this utility model;

[0025] Figure 6 This utility model Figure 5 Enlarged 3D structural diagram of section A.

[0026] In the diagram: 1. Base; 2. Top plate; 3. Shock-absorbing spring; 101. Lower connecting block; 102. Rotating block one; 103. Rotating block two; 104. Upper connecting block; 105. Damping shaft; 106. Fixed cylinder; 107. Movable column; 108. Heat dissipation fins; 109. Rubber pad; 110. Rubber cylinder; 201. Sliding groove; 202. Telescopic groove; 203. Engaging block; 204. Pull rod; 205. Engaging groove. Detailed Implementation

[0027] 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.

[0028] Example 1, such as Figure 1 , Figure 2 , Figure 3 ,and Figure 4The technical solution shown in this utility model provides the following technical solution: To solve the problem of insufficient damping effect of track vibration isolators, a buffer mechanism is disclosed: including a base 1, a top plate 2 connected to the top of the base 1, and a shock-absorbing spring 3 connected between the base 1 and the top plate 2; three lower connecting blocks 101 are connected to the surface of the base 1, a rotating block 102 is rotatably connected to the top of the lower connecting blocks 101, a rotating block 2 103 is rotatably connected to the top of the rotating block 102, a damping shaft 105 is installed between the rotating block 2 103 and the rotating block 102, and a buffer mechanism to improve the damping effect of the vibration isolator is provided on the top of the lower connecting blocks 101. The buffer mechanism includes a rotating shaft 105. The upper connecting block 104 at the top of the moving block 2 103 is connected to the bottom of the top plate 2. The lower connecting block 101 is fixed with a fixed cylinder 106 near the top of the rotating block 102. The fixed cylinder 106 is movably connected to a movable column 107. The surface of the movable column 107 is connected to a ceramic friction plate, which is tightly attached to the inner wall of the fixed cylinder 106. The movable column 107 is fixed to the bottom of the upper connecting block 104. The surface of the fixed cylinder 106 is fixed with heat dissipation fins 108. A rubber pad 109 is connected to the center of the bottom of the top plate 2. A rubber cylinder 110 is telescopically connected between the top plate 2 and the base 1, and airflow holes are opened on the surface of the rubber cylinder 110.

[0029] When using track vibration isolators, the floating plates of the railway are first installed on the isolators. When the floating plates are impacted by vehicles, the impact is transmitted to the surface of the top plate 2. When the top plate 2 is under pressure, it can move downwards. When the top plate 2 moves, it can press the damping spring 3. The damping effect of the damping spring 3 can reduce the impact force generated by the top plate 2. At the same time, the top plate 2 will squeeze the rubber cylinder 110. When the rubber cylinder 110 is squeezed, it can be compressed through its own material deformation. The rubber cylinder 110 can reduce the entry of dust into the inside, reduce the corrosion of internal parts, and improve service life. At the same time, the rubber cylinder 110 has a certain elasticity, which can reduce the impact force generated by the top plate 2. The downward movement of the top plate 2 can also drive the upper connecting block 104, the rotating block 103, and the rubber pad 109 to move. When the rubber pad 109 moves to the top of the damping spring 3, it can be squeezed. The rubber material of the rubber pad 109 can reduce the wear caused by the top plate 2 impacting the damping spring 3. When the upper connecting block 104 moves, it can push the movable column 107 downwards. When the movable column 107 moves downward, it can cause the ceramic friction plate to rub against the inner wall of the fixed cylinder 106. Through friction, the impact force of the top plate 2 can be converted into heat energy, thereby greatly reducing the impact force generated by the top plate 2. When the fixed cylinder 106 generates heat through friction, it will transfer the heat to the heat dissipation fins 108. The heat dissipation fins 108 can accelerate heat dissipation through their own structure, ensuring the stability of the ceramic friction plate structure. When the rotating block 2 103 moves downward, it can push the rotating block 102 to rotate. When the rotating block 2 103 and the rotating block 102 rotate, a damping effect can be generated through the damping shaft 105. The damping of the rotating block 2 103 and the rotating block 102 through the damping shaft 105 will delay the rotation efficiency, thereby alleviating the impact force generated by the top plate 2. Furthermore, the structure of the damping shaft 105 can be adjusted. Therefore, after long-term use, it can be adjusted with special tools. The damping strength of the vibration isolator can also be adjusted according to the needs of use, which greatly reduces the vibration generated by the vehicle and improves the stability of the track.

[0030] Example 2, as follows Figure 2 , Figure 3 , Figure 5 and Figure 6The present invention provides the following technical solution: In order to solve the problem of difficulty in maintaining track vibration isolators after damage, based on embodiment one, a disassembly and assembly mechanism is disclosed: a sliding groove 201 is provided on the surface of the base 1 and the bottom of the top plate 2. The sliding groove 201 is provided with a disassembly and assembly mechanism for easy maintenance of the vibration isolator. The disassembly and assembly mechanism includes a locking groove 205 opened on the side of the sliding groove 201. The lower connecting block 101 and the upper connecting block 104 are provided with telescopic grooves 202 on their sides. A locking block 203 is movably connected inside the telescopic groove 202. A pull rod 204 is fixed on the side of the locking block 203. The pull rod 204 slides through the telescopic groove 202. A spring is connected between the locking block 203 and the telescopic groove 202, and the locking block 203 and the locking groove 205 are locked together.

[0031] When a track vibration isolator malfunctions after prolonged use and requires maintenance, pulling the lever 204 can move the locking block 203. When the locking block 203 moves, it can slide through the locking groove 205 and the telescopic groove 202. When the locking block 203 slides, it can compress the spring. When the locking block 203 is compressed into the telescopic groove 202, it can pull the lower connecting block 101 and the upper connecting block 104. When the lower connecting block 101 and the upper connecting block 104 are pulled, they can slide through the sliding groove 201. After the lower connecting block 101 and the upper connecting block 104 slide out of the sliding groove 201, they can be separated and disassembled from the base 1 and the top plate 2. After the lower connecting block 101 and the upper connecting block 104 are disassembled, they can be replaced with new ones or repaired, which improves the maintenance efficiency of the track vibration isolator.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A damping spring structure for a floating slab track vibration isolator equipped with a damping adjustment mechanism, comprising a base (1), a top plate (2) connected to the top of the base (1), and a damping spring (3) connected between the base (1) and the top plate (2), characterized in that: The base (1) has three lower connecting blocks (101) connected to its surface. The top of the lower connecting block (101) is rotatably connected to a rotating block one (102). The top of the rotating block one (102) is rotatably connected to a rotating block two (103). A damping shaft (105) is installed between the rotating block two (103) and the rotating block one (102). The top of the lower connecting block (101) is provided with a buffer mechanism to improve the damping effect of the vibration isolator.

2. The damping spring structure of a floating slab track vibration isolator with a damping adjustment mechanism according to claim 1, characterized in that: The buffer mechanism includes an upper connecting block (104) that rotates on top of the second rotating block (103), the upper connecting block (104) being connected to the bottom of the top plate (2), and a fixed cylinder (106) fixed to the lower connecting block (101) near the top of the first rotating block (102).

3. The damping spring structure of a floating slab track vibration isolator with a damping adjustment mechanism according to claim 2, characterized in that: The fixed cylinder (106) has a movable column (107) that is movably connected through it. A ceramic friction plate is connected to the surface of the movable column (107). The ceramic friction plate is in close contact with the inner wall of the fixed cylinder (106). The movable column (107) is fixed to the bottom of the upper connecting block (104). A heat dissipation fin (108) is fixed to the surface of the fixed cylinder (106).

4. The damping spring structure of a floating slab track vibration isolator with a damping adjustment mechanism according to claim 1, characterized in that: A rubber pad (109) is connected to the center of the bottom of the top plate (2), and a rubber cylinder (110) is telescopically connected between the top plate (2) and the base (1), and airflow holes are opened on the surface of the rubber cylinder (110).

5. The damping spring structure of a floating slab track vibration isolator with a damping adjustment mechanism according to claim 1, characterized in that: The base (1) and the bottom of the top plate (2) are both provided with sliding grooves (201). The sliding groove (201) is provided with a mechanism for convenient maintenance and disassembly of the vibration isolator. The disassembly and assembly mechanism includes a locking groove (205) on the side of the sliding groove (201).

6. The damping spring structure of a floating slab track vibration isolator with a damping adjustment mechanism according to claim 1, characterized in that: The lower connecting block (101) and the upper connecting block (104) have telescopic grooves (202) on their sides. A locking block (203) is movably connected inside the telescopic groove (202), and a pull rod (204) is fixed on the side of the locking block (203).

7. The damping spring structure of a floating slab track vibration isolator with a damping adjustment mechanism according to claim 6, characterized in that: The pull rod (204) slides through the telescopic groove (202), and a spring connects the locking block (203) and the telescopic groove (202), and the locking block (203) and the locking groove (205) are locked together.

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