Railway system limiting shock-absorbing energy dissipation device

Abstract

The present application provides a kind of track system limiting shock absorption energy consumption device, longitudinal sliding drawer is arranged in the inside of box base and it can slide in longitudinal direction, multiple longitudinal springs are respectively arranged between the two ends of longitudinal sliding drawer longitudinal direction and the inner wall of box base;Transverse sliding assembly includes connecting rod and respectively arranged in the transverse sliding plate and transverse connecting seat of the two ends of connecting rod, transverse connecting seat is located in the outside of box base, transverse sliding plate is arranged in the inside of longitudinal sliding drawer and multiple transverse springs are respectively arranged between the two sides of transverse sliding plate and the inner wall of longitudinal sliding drawer;Transverse sliding plate can slide in the inside of longitudinal sliding drawer along transverse direction and pass longitudinal force to longitudinal sliding drawer.On the sliding of longitudinal sliding drawer and transverse sliding plate, shock absorption energy consumption function is realized by spring and sliding friction, reduce the damage of earthquake to high-speed railway bridge-track system, realized the integration of transverse limiting and shock absorption function and longitudinal limiting and shock absorption function.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction and isolation technology for high-speed railway bridges and track systems, specifically to a track system limiting vibration reduction and energy dissipation device. Background Technology

[0002] With the rapid development of China's high-speed rail network, its coverage area has gradually expanded to the central and western regions of China, where seismic activity is more high, leading to more challenging operating conditions for high-speed rail bridges. However, the design and development of existing vibration damping and energy dissipation devices for high-speed rail bridge-track systems are inadequate. Currently, only some vibration isolation and damping devices for high-speed rail bridge substructures have been studied, while limiting and damping devices for protecting track substructures are extremely rare. Furthermore, the connection treatment between high-speed rail bridge substructures and track substructures is not mature enough. For example, the CRTSⅡ type ballastless track system is connected to the high-speed rail bridge via shear grooves and sliding layers. Shear grooves are only installed above the fixed supports of the high-speed rail bridge, resulting in uneven longitudinal connection stiffness between the track substructure and the high-speed rail bridge substructure, and an inadequate overall limiting function. Under normal operating conditions, due to temperature and traffic loads, the stress and strain distribution within the track system is inconsistent, easily leading to localized damage accumulation. Under seismic loads, the vibration damping and energy dissipation function of the track substructure is almost nonexistent, and energy can only be passively dissipated through damage to the interlayer components within the track system.

[0003] To promote the development and construction of high-speed railway networks in areas with high seismic risk, the energy dissipation and damping requirements of high-speed railway bridge-track systems under normal service loads and seismic loads urgently need to be addressed. Therefore, a track system damping and damping energy dissipation device is urgently needed to solve the problems existing in current technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a limiting, damping, and energy-dissipating device for a track system, aiming to improve the connection between the high-speed railway bridge substructure and the track substructure, protect the integrity of the high-speed railway bridge and track system, and reduce the damage to the internal interlayer components of the track system caused by seismic forces. The specific technical solution is as follows:

[0005] A track system limiting, shock absorption, and energy dissipation device includes a box-shaped base, a longitudinal spring, a longitudinal sliding drawer, a transverse spring, and a transverse sliding assembly; the longitudinal sliding drawer is disposed inside the box-shaped base and can slide longitudinally, and multiple longitudinal springs are respectively provided between the two ends of the longitudinal sliding drawer and the inner wall of the box-shaped base.

[0006] The transverse sliding assembly includes a connecting rod and transverse sliding plates and transverse connecting seats respectively disposed at both ends of the connecting rod. The transverse connecting seats are located outside the box-shaped base. The transverse sliding plates are disposed inside the longitudinal sliding drawer, and multiple transverse springs are respectively provided between the two sides of the transverse sliding plates and the inner wall of the longitudinal sliding drawer.

[0007] Both ends of the horizontal sliding plate in the longitudinal direction are in sliding contact with the inner wall of the vertical sliding drawer, so that the horizontal sliding plate can slide horizontally inside the vertical sliding drawer and transmit the longitudinal force to the vertical sliding drawer.

[0008] In the preferred embodiment of the above technical solutions, the initial positions of both the longitudinal sliding drawer and the transverse sliding plate are limited by shear pins.

[0009] In the preferred embodiment of the above technical solutions, gaps are left between the longitudinal sliding drawer and its corresponding shear pin, and between the transverse sliding plate and its corresponding shear pin.

[0010] The preferred embodiment of the above technical solution further includes a friction plate and a friction clamping plate assembly. The longitudinal sliding drawer is provided with a friction plate on at least one side in the longitudinal direction. The box-shaped base is fixed with a friction clamping plate assembly corresponding to the friction plate. The friction clamping plate assembly includes an upper friction clamping plate and a lower friction clamping plate located on the upper and lower sides of the friction plate, respectively. Friction force is applied to the friction plate through the upper friction clamping plate and the lower friction clamping plate.

[0011] In a preferred embodiment of the above technical solution, the friction clamping plate assembly further includes a locking component, which includes a locking bolt and a locking nut; the bottom plate of the box-shaped base is provided with a fixing hole, the friction plate is provided with a second longitudinal limiting hole, and the locking bolt passes through the fixing hole, the through hole of the lower friction clamping plate, the second longitudinal limiting hole and the through hole of the upper friction clamping plate in sequence and is then locked by the locking nut.

[0012] In the preferred embodiment of the above technical solutions, a locking nut is fitted onto the locking bolt at the position between the lower friction plate and the bottom plate of the box-shaped base.

[0013] In the preferred embodiment of the above technical solutions, the friction distribution generated by the upper and lower friction plates on the friction plate is a concave friction distribution.

[0014] In the preferred embodiment of the above technical solution, the box-shaped base has a longitudinal limiting hole 1 on the longitudinal side plate near the transverse connecting seat, the longitudinal sliding drawer has a through hole on the longitudinal side plate near the transverse connecting seat, and the connecting rod is arranged to pass through the through hole and the longitudinal limiting hole 1 in sequence.

[0015] In the preferred embodiment of the above technical solutions, the two ends of the box-shaped base are raised to achieve a suspended middle section of the box-shaped base.

[0016] In the preferred embodiment of the above technical solutions, the box-shaped base is fixedly mounted on the bridge deck of the bridge system, and the transverse connecting seat is fixedly mounted on the track base plate of the track system.

[0017] The application of the technical solution of the present invention has the following beneficial effects:

[0018] Under normal operating conditions of the high-speed railway bridge-track system, the longitudinal sliding drawer and transverse sliding plate in the track system's limiting and damping energy dissipation device are respectively restricted in displacement by longitudinal shear pins and transverse shear pins; the gaps reserved for the installation of shear pins meet the deformation and displacement of the high-speed railway bridge-track system caused by temperature and traffic loads.

[0019] Under seismic loading, when the force transmitted from the connecting rod of the track system's limiting and damping energy dissipation device to the longitudinal sliding drawer exceeds the shearing force of the longitudinal shear pin, the longitudinal shear pin is sheared, allowing the longitudinal sliding drawer to slide longitudinally within the box-shaped base. At this point, the limiting mechanism changes from the longitudinal shear pin to the longitudinal spring and friction. Similarly, when the force transmitted from the connecting rod of the track system's limiting and damping energy dissipation device to the transverse sliding plate exceeds the shearing force of the transverse shear pin, the transverse shear pin is sheared, allowing the transverse sliding plate to slide laterally within the longitudinal sliding drawer. At this point, the limiting mechanism changes from the transverse shear pin to the transverse spring.

[0020] When the longitudinal sliding tray and transverse sliding plate slide, the spring and sliding friction achieve vibration damping and energy dissipation, reducing earthquake damage to the high-speed railway bridge-track system. This integrates lateral and longitudinal damping functions. It can be used in conjunction with seismic isolation bearings to form multi-layered damping and isolation layers, protecting the integrity of both the track and bridge systems. It can replace the shear toothed connection between the high-speed railway bridge deck and the track system base plate, homogenizing the connection stiffness between the bridge and track systems and reducing uneven stress and strain distribution within the track system.

[0021] The track system limiting, damping, and energy dissipation device of the present invention is used for the connection between the bridge deck and the side of the track structure base plate. The limiting capacity and damping energy dissipation capacity of the device itself are not affected by the weight of the track system. The limiting function and damping energy dissipation function of the device can be independently adjusted, and the reset function and energy dissipation function are not coupled.

[0022] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the track system's limiting, damping, and energy-dissipating device;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure of the medium-sized box base;

[0026] Figure 3 yes Figure 1 Schematic diagram of the vertical sliding drawer;

[0027] Figure 4 yes Figure 1 A schematic diagram of the structure of the horizontal sliding component;

[0028] Figure 5 yes Figure 1 Schematic diagram of the structure of the friction clamping plate assembly;

[0029] Figure 6 This is a schematic diagram illustrating the application of a track system limit, damping, and energy-dissipating device.

[0030] Among them, 1. Box-type base, 1.1. Fixing hole, 1.2. Longitudinal limiting hole one, 2. Longitudinal spring, 3. Longitudinal sliding drawer, 3.1. Through hole, 4. Friction clamping plate assembly, 4.1. Upper friction clamping plate, 4.2. Lower friction clamping plate, 4.3. Locking assembly, 5. Transverse sliding plate, 6. Transverse spring, 7. Connecting rod, 8. Transverse connecting seat, 9. Transverse shear pin, 10. Longitudinal shear pin, 11. Mounting bolt, 12. Friction plate, 12.1. Longitudinal limiting hole two, 13. Bridge system, 14. Track system. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more comprehensive description is provided below, along with preferred embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] See Figures 1-6 A track system limiting, shock absorption, and energy dissipation device includes a box-shaped base 1, a longitudinal spring 2, a longitudinal sliding drawer 3, a transverse spring 6, and a transverse sliding assembly; the longitudinal sliding drawer 3 is disposed inside the box-shaped base 1 and can slide longitudinally (i.e., the longitudinal sliding drawer can slide longitudinally inside the box-shaped base), and multiple longitudinal springs 2 are respectively provided between the two ends of the longitudinal sliding drawer 3 in the longitudinal direction and the inner wall of the box-shaped base 1. The longitudinal springs at both ends of the longitudinal sliding drawer are in a compressed state and apply a longitudinal elastic force to the longitudinal sliding drawer.

[0034] The transverse sliding assembly includes a connecting rod 7 and transverse sliding plates 5 and transverse connecting seats 8 respectively disposed at both ends of the connecting rod 7. The transverse connecting seats 8 are located outside the box-shaped base 1. The transverse sliding plates 5 are disposed inside the longitudinal sliding drawer 3, and multiple transverse springs 6 are respectively disposed between the two sides of the transverse sliding plates and the inner wall of the longitudinal sliding drawer 3. The transverse springs on both sides of the transverse sliding plates are in a compressed state and apply a transverse elastic force to the transverse sliding plates.

[0035] Preferably, both ends of the transverse sliding plate in the longitudinal direction are in sliding contact with the inner wall of the longitudinal sliding drawer, so that the transverse sliding plate can slide in the transverse direction inside the longitudinal sliding drawer and transmit the longitudinal force to the longitudinal sliding drawer. In this embodiment, a clearance fit is used to achieve sliding contact. Of course, those skilled in the art may also use other structural forms to achieve sliding contact, such as setting a groove and a sliding table to achieve sliding contact.

[0036] The initial positions of the longitudinal sliding drawer 3 and the transverse sliding plate 5 are both limited by shear pins. In the initial position, the forces between the longitudinal springs at both ends of the longitudinal sliding drawer under pressure are balanced, and the forces between the transverse springs on both sides of the transverse sliding plate under pressure are balanced (forces being balanced means that the forces are equal in magnitude and opposite in direction). A gap (preferably 2mm) is left between the longitudinal sliding drawer 3 and its corresponding shear pin, and between the transverse sliding plate 5 and its corresponding shear pin. This gap can meet the deformation and displacement requirements caused by temperature during normal operation of the track system.

[0037] like Figure 2 As shown, the box-shaped base 1 is a box-shaped body with an opening, including two longitudinal side plates, two transverse side plates, and a bottom plate; the two longitudinal side plates and the two transverse side plates enclose a square frame 1, and the bottom plate is used to seal one end of the square frame 1, thereby forming a box-shaped body with an opening. Figure 3 As shown, the longitudinal sliding drawer 3 includes two longitudinal side plates and two transverse side plates. The two longitudinal side plates are arranged in parallel between the two transverse side plates, and the two longitudinal side plates and the two transverse side plates form a square frame II. The interior of the square frame II is used to install the transverse sliding plate 5.

[0038] Specifically, the bottom plate of the box-shaped base 1 is provided with a longitudinal shear pin 10 for limiting the longitudinal sliding drawer in the longitudinal direction; the transverse side plate of the longitudinal sliding drawer 3 is provided with a transverse shear pin 9 for limiting the transverse sliding plate in the transverse direction, and the end of the transverse sliding plate is in sliding contact with the transverse side plate.

[0039] See Figure 1 , Figure 2 and Figure 5The track system limiting and shock absorption energy dissipation device also includes a friction plate 12 and a friction clamping plate group 4. The longitudinal sliding drawer 3 is provided with a friction plate 12 on at least one side in the longitudinal direction. The box-shaped base 1 is fixed with a friction clamping plate group 4 corresponding to the friction plate. The friction clamping plate group 4 includes an upper friction clamping plate 4.1 and a lower friction clamping plate 4.2 located on the upper and lower sides of the friction plate 12, respectively. The upper friction clamping plate 4.1 and the lower friction clamping plate 4.2 apply friction force to the friction plate 12, thereby realizing friction energy dissipation.

[0040] Furthermore, the friction plate assembly 4 also includes a locking component 4.3, which includes a locking bolt and a locking nut. The bottom plate of the box-shaped base 1 has a fixing hole 1.1, and the friction plate 12 has a longitudinal limiting hole 12.1. The locking bolt passes sequentially through the fixing hole 1.1, the through hole of the lower friction plate 4.2, the longitudinal limiting hole 12.1, and the through hole of the upper friction plate 4.2 before being locked by the locking nut. Furthermore, a locking nut is fitted onto the locking bolt at the position between the lower friction plate 4.2 and the bottom plate of the box-shaped base. Pressure is applied between the upper friction plate, the lower friction plate, and the friction plate by the locking nut. Adjusting the pressure changes the magnitude of the friction force, thereby altering the energy consumption effect. Preferably, in this embodiment, the locking bolt is a high-strength bolt.

[0041] Preferably, the friction distribution generated by the upper friction plate 4.1 and the lower friction plate 4.2 on the friction plate 12 is a concave friction distribution. Specifically, the friction force of the upper and lower friction plates on the friction plate changes as follows: when the longitudinal sliding drawer is in the initial position, the friction force between the friction plate and the upper and lower friction plates is the smallest; the further the longitudinal sliding drawer moves away from the initial position, the greater the friction force. This can be achieved by setting contact materials with different friction coefficients, so that the friction force experienced by the longitudinal sliding drawer at any displacement is less than the resultant force of the spring force, thus realizing the self-resetting function of the track system.

[0042] Furthermore, the box-shaped base 1 has a longitudinal limiting hole 1.2 on its longitudinal side plate near the transverse connecting seat 8, and the longitudinal sliding drawer 3 has a through hole 3.1 on its longitudinal side plate near the transverse connecting seat 8. The connecting rod 7 passes through the through hole 3.1 and the longitudinal limiting hole 1.2 in sequence. The longitudinal limiting hole 1.2 is an elongated hole, the length of which limits the longitudinal movement range of the longitudinal sliding drawer. The through hole is used to allow the connecting rod 7 to pass freely, realizing the free transmission of transverse force.

[0043] Similarly, the second longitudinal limiting hole is also an elongated hole, the length of which limits the distance that frictional movement can occur between the friction plate, the upper friction clamp, and the lower friction clamp; preferably, the length of the first longitudinal limiting hole is less than or equal to the length of the second longitudinal limiting hole, so as to ensure that frictional energy dissipation can occur within the movement stroke of the longitudinal sliding drawer.

[0044] Furthermore, in this embodiment, the two ends of the box-shaped base 1 are raised (this can be achieved by welding supports to the ends), so that the middle section of the box-shaped base is suspended. The suspension setting facilitates the arrangement of the longitudinal shear pins 10 and locking bolts.

[0045] See Figure 6 The box-shaped base 1 is fixedly mounted on the bridge deck of the bridge system 13 by mounting bolts 11, and the transverse connecting seat 8 is fixedly mounted on the track base plate of the track system 14 by mounting bolts 11; preferably, the mounting bolts are high-strength expansion bolts. In this embodiment, the longitudinal direction is the same as the length direction of the track system; the limiting, damping, and energy dissipating devices of this embodiment can be arranged at equal intervals along the longitudinal direction on both sides of the track system.

[0046] In this embodiment, a circular metal washer is used during bolt installation, and reinforcing ribs are provided for both the box-shaped base 1 and the transverse connecting seat 8 to strengthen the structure.

[0047] The working principle of the limiting vibration damping and energy dissipation device in this embodiment is as follows: Under normal operating loads, the longitudinal sliding drawer and transverse sliding plate in the limiting vibration damping and energy dissipation device of the track system are restricted in displacement by longitudinal shear pins and transverse shear pins, respectively. Under seismic loading, when the force transmitted from the connecting rod 7 of the limiting vibration damping and energy dissipation device of the track system to the longitudinal sliding drawer 3 is greater than the shearing force of the longitudinal shear pin, the longitudinal shear pin is sheared, allowing the longitudinal sliding drawer to slide longitudinally within the box-shaped base. At this time, the limiting force is changed from longitudinal shear pin to longitudinal spring and friction. When the force transmitted from the connecting rod 7 of the limiting vibration damping and energy dissipation device of the track system to the transverse sliding plate is greater than the shearing force of the transverse shear pin, the transverse shear pin is sheared, allowing the transverse sliding plate to slide laterally within the longitudinal sliding drawer. At this time, the limiting force is changed from transverse shear pin to transverse spring. When the longitudinal sliding drawer and transverse sliding plate slide, the vibration damping and energy dissipation function is achieved through the spring and friction properties.

[0048] The limiting vibration damping and energy dissipation device in this embodiment can be used in conjunction with existing high-speed railway bridge seismic isolation bearings and other devices to exert vibration damping and energy dissipation capabilities, forming a multi-layered vibration damping and isolation layer to protect the integrity of the bridge substructure and track substructure in the high-speed railway bridge-track system. The stiffness of the longitudinal spring and the transverse spring can be set independently to meet the different limiting requirements of the track system in the longitudinal and transverse directions.

[0049] The limiting vibration damping and energy dissipation device of this embodiment can be applied to CRTSⅡ type slab track, but is not limited to CRTSⅡ type slab track. The limiting vibration damping and energy dissipation device of this embodiment can also be used in other track systems.

[0050] The effect of applying the technical solution of this invention is:

[0051] Under normal operating conditions of the high-speed railway bridge-track system, it can limit the relative displacement of the bridge and track subsystems under temperature effects and normal traffic loads. Under seismic loading, it can effectively limit, dampen, and dissipate energy. It can be used in conjunction with seismic isolation bearings to form multi-layered seismic isolation layers, protecting the integrity of both the track and bridge systems. It can replace the shear toothed connection between the bridge deck and the track system base plate, homogenizing the connection stiffness between the bridge and track systems and reducing uneven stress and strain distribution within the track system. Simultaneously, it can dissipate seismic energy through sliding friction, reducing damage to the high-speed railway bridge-track system from earthquakes, thus integrating lateral and longitudinal limiting and damping functions.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A limiting, damping, and energy-dissipating device for a track system, characterized in that, It includes a box-shaped base (1), a longitudinal spring (2), a longitudinal sliding drawer (3), a transverse spring (6), and a transverse sliding assembly; the longitudinal sliding drawer (3) is disposed inside the box-shaped base (1) and can slide longitudinally, and multiple longitudinal springs (2) are respectively provided between the two ends of the longitudinal sliding drawer (3) in the longitudinal direction and the inner wall of the box-shaped base (1). The transverse sliding assembly includes a connecting rod (7) and transverse sliding plates (5) and transverse connecting seats (8) respectively disposed at both ends of the connecting rod (7). The transverse connecting seats (8) are located outside the box-shaped base (1). The transverse sliding plates (5) are disposed inside the longitudinal sliding drawer (3), and multiple transverse springs (6) are respectively provided between the two sides of the transverse sliding plates and the inner wall of the longitudinal sliding drawer (3). Both ends of the transverse sliding plate in the longitudinal direction are in sliding contact with the inner wall of the longitudinal sliding drawer, so that the transverse sliding plate can slide in the transverse direction inside the longitudinal sliding drawer and transmit the longitudinal force to the longitudinal sliding drawer. It also includes a friction plate (12) and a friction clamping plate assembly (4). The longitudinal sliding drawer (3) is provided with a friction plate (12) on at least one side in the longitudinal direction. The box-shaped base (1) is fixed with a friction clamping plate assembly (4) corresponding to the friction plate. The friction clamping plate assembly (4) includes an upper friction clamping plate (4.1) and a lower friction clamping plate (4.2) located on the upper and lower sides of the friction plate (12) respectively. The friction plate (12) is subjected to friction through the upper friction clamping plate (4.1) and the lower friction clamping plate (4.2). The initial positions of the longitudinal sliding drawer (3) and the transverse sliding plate (5) are both limited by shear pins; There are gaps between the longitudinal sliding drawer (3) and its corresponding shear pin, and between the transverse sliding plate (5) and its corresponding shear pin. The box-shaped base (1) is fixedly installed on the bridge surface of the bridge system (13), and the transverse connecting seat (8) is fixedly installed on the track base plate of the track system (14); When the force transmitted from the connecting rod (7) of the track system limiting vibration damping energy dissipation device to the longitudinal sliding tray (3) is greater than the shearing force of the longitudinal shear pin, the longitudinal shear pin is sheared; when the force transmitted from the connecting rod (7) of the track system limiting vibration damping energy dissipation device to the transverse sliding plate is greater than the shearing force of the transverse shear pin, the transverse shear pin is sheared.

2. The track system limiting, damping, and energy dissipation device according to claim 1, characterized in that, The friction clamping plate assembly (4) also includes a locking component (4.3), which includes a locking bolt and a locking nut. The bottom plate of the box-shaped base (1) is provided with a fixing hole (1.1), and the friction plate (12) is provided with a longitudinal limiting hole (12.1). The locking bolt passes through the fixing hole (1.1), the through hole of the lower friction clamping plate (4.2), the longitudinal limiting hole (12.1), and the through hole of the upper friction clamping plate (4.1) in sequence, and is then locked by the locking nut.

3. The track system limiting, damping, and energy dissipation device according to claim 2, characterized in that, The locking bolt is fitted with a locking nut at the position between the lower friction plate (4.2) and the bottom plate of the box-shaped base.

4. The track system limiting, damping, and energy-dissipating device according to claim 1, characterized in that, The friction distribution generated by the upper friction plate (4.1) and the lower friction plate (4.2) on the friction plate (12) is a concave friction distribution.

5. The track system limiting, damping, and energy dissipation device according to claim 1, characterized in that, The box-shaped base (1) has a longitudinal limiting hole 1 (1.2) on the longitudinal side plate near the transverse connecting seat (8), and the longitudinal sliding drawer (3) has a through hole (3.1) on the longitudinal side plate near the transverse connecting seat (8). The connecting rod (7) passes through the through hole (3.1) and the longitudinal limiting hole 1 (1.2) in sequence.

6. The track system limiting, damping, and energy dissipation device according to claim 1, characterized in that, The two ends of the box-shaped base (1) are raised to achieve the suspension of the middle section of the box-shaped base.

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