Steel rail corrugation suppression device and mounting method

Abstract

The invention discloses a steel rail corrugation restraining device and an installation method, and belongs to the technical field of rail transit. The steel rail corrugation suppression device comprises suppression mechanisms, the suppression mechanisms are symmetrically arranged on the two sides of a rail web of a steel rail, a fixing mechanism for fixing the suppression mechanisms on the steel rail is arranged at the bottom of the steel rail, an energy consumption box is arranged on the fixing mechanism, and the energy consumption box is located under the steel rail; the suppression mechanism comprises a plurality of box bodies in a linear array, a plurality of first suppression layers and second suppression layers are arranged in the box bodies, and the first suppression layers and the second suppression layers are arranged at intervals. By the adoption of the steel rail corrugation suppression device and the mounting method, the problem that an existing steel rail corrugation suppression device is poor in steel rail vibration and noise reduction effect can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, and in particular to a rail corrugation suppression device and a mounting method. BACKGROUND

[0002] In the field of rail transit, the wheel-rail system is the main form of high-speed rail and urban rail in China. Under the long-term operation of the vehicle, the problem of rail corrugation is increasingly prominent. Rail corrugation refers to the phenomenon that the working surface of newly laid or ground steel rail will produce a wave-like wear after a period of use. Rail corrugation brings many negative effects. It will exacerbate rail vibration, leading to increased excitation frequency, increased amplitude, and complex vibration transmission path, thus exacerbating the vibration of the track and the wheel, affecting the track infrastructure and passenger comfort. At the same time, high-frequency excitation caused by corrugation will significantly increase wheel-rail noise. The easy development of rail corrugation will lead to strong wheel-rail interaction, causing damage to parts of the track and train vehicles, such as rail fastener fracture, vehicle component damage, etc. This not only accelerates the wear of the track and train components and shortens their service life, but also poses a threat to train operation safety.

[0003] The common rail grinding method, although the main means to control the influence of corrugation, requires track grinding car equipment worth tens of millions of yuan, and the rail head profile shape changes greatly after grinding, which will affect the wheel-rail contact geometry and wheel-rail dynamics performance, which is neither economical nor can fundamentally eliminate corrugation. The method of applying friction modifier on the rail surface has high technical requirements, and the application quality is difficult to guarantee, and it also easily affects the train traction performance, and cannot completely solve the problem of rail corrugation. Installing a corrugation suppressor on the rail is an effective means to suppress rail corrugation. The existing corrugation suppressor generally sets an elastic member or rubber block on the rail to absorb and disperse the energy of rail vibration, thereby reducing rail vibration and noise and alleviating the corrugation phenomenon of the rail. However, the frequency of the existing vibration suppressor is generally fixed, which is difficult to meet the suppression requirements of rails with different corrugation frequencies.

[0004] The existing patent CN202411275098.1 discloses a kind of adjustable frequency rail vibration absorbing device for inhibiting rail corrugation and application method thereof, including mass block, connecting rod, damping rubber ring and rail connecting fixed buckle, wherein the structure of the rail connecting fixed buckle is matched with the rail, the connecting rod is installed on the rail connecting fixed buckle, and the damping rubber ring is arranged between the connecting rod and the rail connecting fixed buckle, the mass block is detachably sleeved on both ends of the connecting rod, and the position of the mass block on the connecting rod is adjustable.The design purpose of rail corrugation inhibition is met, that is, the lateral dynamic creep rate between wheel and rail is inhibited, the track attenuation rate in a specific frequency range is increased, the wave abrasion damage is slowed down, the environmental vibration and noise problem is alleviated, the steel rail replacement frequency is reduced, the track service life is prolonged, and the operation and maintenance cost is greatly reduced.However, in the above-mentioned patent, only mass blocks are arranged on both sides of the rail waist of the rail, and the effect of the mass blocks on the rail corrugation inhibition is relatively poor, and the damping effect on vibration and noise is relatively poor. SUMMARY

[0005] The purpose of the present application is to provide a rail corrugation inhibition device and installation method, which solves the problem of poor damping effect on vibration and noise of the existing rail corrugation inhibition device.

[0006] To achieve the above-mentioned purpose, the present application provides a rail corrugation inhibition device, which comprises an inhibition mechanism, the inhibition mechanism is symmetrically arranged on both sides of the rail waist of the rail, the bottom of the rail is provided with a fixing mechanism for fixing the inhibition mechanism on the rail, the fixing mechanism is provided with an energy consumption box, and the energy consumption box is located directly below the rail;The inhibition mechanism comprises a plurality of box bodies arranged in a linear array, a plurality of first inhibition layers and second inhibition layers are arranged in the box body, and the first inhibition layers and the second inhibition layers are arranged at intervals.

[0007] Preferably, the first inhibition layer comprises a plurality of first flexible ropes arranged in a linear array, both ends of the first flexible rope are fixed on the inner walls of both sides of the box body, and a plurality of first counterweight balls are fixedly arranged on the first flexible rope; The second inhibition layer comprises a plurality of second flexible ropes arranged in a linear array, both ends of the second flexible rope are fixed on the inner walls of both ends of the box body, the second flexible rope is arranged perpendicularly to the first flexible rope, a plurality of second counterweight balls are fixedly arranged on the second flexible rope, and the second counterweight balls are arranged in a staggered manner with the first counterweight balls.

[0008] Preferably, the top of the box body is provided with a liquid inlet, the bottom of the box body is provided with a liquid outlet, the liquid inlet and the liquid outlet are provided with rubber plugs for plugging the liquid inlet and the liquid outlet respectively, the inside of the box body is filled with an inhibitor, the filling amount of the inhibitor in the box body is 60%-80% of the inner cavity of the box body, and the first counterweight balls and the second counterweight balls are immersed in the inhibitor.

[0009] Preferably, the box is provided with a connecting block between the box and the steel rail, the box on the suppression mechanism is fixed on the connecting block, the side of the connecting block close to the steel rail is matched with the rail waist shape of the steel rail; the connecting block is a rubber block, the suppressant is silicone oil, and the box is a metal material.

[0010] Preferably, the fixing mechanism comprises a base, the bottom of the base is provided with a supporting leg, the energy dissipation boxes are arranged in a linear array on the upper surface of the base, and the energy dissipation boxes are provided with first springs for supporting the energy dissipation boxes between the energy dissipation boxes and the base; the two sides of the base are provided with fixed plates, the top of the fixed plate is provided with a supporting plate for supporting the box, the supporting plate is provided with a clamping structure for clamping the box, and the base is provided with a locking structure for locking the energy dissipation box; The clamping structure comprises a clamping plate corresponding to the box, the clamping plate is located above the supporting plate, the bottom of the clamping plate is provided with an ear plate, the ear plate is located between the two supporting plates, the ear plate is connected with the side wall of the energy dissipation box through a transmission rod, and the two ends of the transmission rod are hinged with the ear plate and the energy dissipation box respectively; the supporting plate is provided with a limiting groove having a guiding effect on the horizontal sliding of the clamping plate, the bottom of the clamping plate is provided with a protrusion matched with the limiting groove, and the protrusion is located in the limiting groove and is in sliding connection with the limiting groove.

[0011] Preferably, the locking structure comprises two locking units symmetrically arranged at the bottom of the energy dissipation box, the locking unit comprises an insertion rod fixedly arranged at the bottom of the energy dissipation box, the base is provided with an insertion hole for inserting the insertion rod, the base is provided with a limiting hole perpendicular to and communicating with the insertion hole, a locking block is slidably arranged in the limiting hole, a second spring is arranged between the limiting hole and the locking block, the insertion rod is provided with a lock hole, and the locking block is inserted into the lock hole under the action of the second spring to lock the insertion rod in the insertion hole; the base is provided with a power structure for driving the locking block to slide in the limiting hole.

[0012] Preferably, the power structure comprises a sliding block, the locking block is provided with a through hole penetrating through the locking block, the sliding block is slidably arranged in the through hole, the base is provided with a slot hole for accommodating the sliding block, the sliding block is located in the slot hole and is in sliding connection with the slot hole, the top end of the sliding block is provided with a transmission inclined surface, the through hole of the locking block is provided with a first inclined surface matched with the transmission inclined surface of the sliding block, the sliding block moves downward to drive the locking block to slide out of the lock hole through the transmission inclined surface and the first inclined surface, the bottom end of the sliding block is provided with a sliding hole, the sliding plate is located in the sliding hole and is in sliding connection with the sliding hole, the sliding plate is provided with a transmission hole, the sliding hole is provided with a second inclined surface matched with the inclined surface of the transmission hole, and the sliding plate horizontally slides to drive the sliding block to slide downward through the second inclined surface and the inclined surface; the end of the sliding plate on the two locking units is connected through a connecting plate, the middle of the connecting plate is provided with a sliding rod, the bottom of the base is provided with a positioning plate, the positioning plate is provided with a through hole for allowing the sliding rod to pass through, the sliding rod is in sliding connection with the positioning plate, a third spring is arranged between the positioning plate and the connecting plate, the third spring provides restoring force for the sliding plate, the end of the sliding plate is provided with a push plate facilitating sliding of the sliding plate, and the base is provided with a guide rail having a guiding effect on the horizontal sliding of the sliding plate.

[0013] Preferably, the power structure comprises a sliding plate, the sliding plate is fixedly connected with the bottom end of the L-shaped locking block, and the limit hole penetrates through the bottom of the base from the end away from the insertion hole; the end of the sliding plate on the two locking units is connected through a connecting plate, the middle part of the connecting plate is provided with a sliding rod, the bottom of the base is provided with a positioning plate, the positioning plate is provided with a through hole through which the sliding rod penetrates, the sliding rod is slidably connected with the positioning plate, a third spring is arranged between the positioning plate and the connecting plate, the third spring provides a restoring force for the sliding plate, the end of the sliding rod is provided with a push plate facilitating sliding of the sliding rod, and the base is provided with a guide rail having a guiding effect on horizontal sliding of the sliding plate.

[0014] Preferably, the top of the energy dissipation box is provided with a top plate, the upper surface of the top plate is provided with a rubber layer, and a plurality of third flexible ropes are uniformly arranged on the top plate, adjacent rows of the third flexible ropes are arranged at intervals, and the bottom of the third flexible rope is provided with a third counterweight ball.

[0015] The mounting method of the rail corrugation suppression device, comprising the following steps: S1, the first counterweight ball is fixed on the first flexible rope, the second counterweight ball is fixed on the second flexible rope, the third counterweight ball is fixed on the bottom end of the third flexible rope, the two ends of the first flexible rope and the second flexible rope are fixed on the inner wall of the box body, and the top end of the third flexible rope is fixed on the top plate; S2, the liquid inlet is sealed after the suppression liquid is injected into the box body through the liquid inlet; S3, the base is placed below the rail, the box body and the connecting block are placed on the supporting plate; the rail is pressed downward or the base is pushed upward, the first spring is compressed, the first spring pushes the energy dissipation box to contact the bottom of the rail; the insertion rod is inserted into the insertion hole, the locking block is inserted into the locking hole under the action of the second spring, and the energy dissipation box is locked; S4, while the energy dissipation box moves, the energy dissipation box drives the clamping plate to slide inward through the transmission rod, the clamping plate clamps the box body and the connecting block at the rail waist of the rail, and the mounting of the suppression device is completed.

[0016] The rail corrugation suppression device and the mounting method have the following advantages and positive effects: 1, the vertical first flexible rope and the second flexible rope are arranged in the box body, the first counterweight ball and the second counterweight ball are arranged on the first flexible rope and the second flexible rope respectively, and the suppressant is filled in the box body, the viscosity resistance and vibration of the suppressant accelerate the dissipation of vibration energy, and the vibration of the first counterweight ball and the second counterweight ball and the swing in the suppressant also accelerate the dissipation of vibration energy, thereby suppressing the vibration of the rail and reducing the corrugation phenomenon of the rail.

[0017] 2、The application fixes the box on the rail waist on both sides through the fixing mechanism, and the energy consumption box moves the clamping plate through the transmission rod, so that the box is clamped on the rail by the clamping plate while the energy consumption box contacts the bottom of the rail, and the installation of the damping device is convenient.

[0018] 3、The base is provided with a locking structure for locking the energy consumption box, the energy consumption box is locked through the locking structure, the stability of the energy consumption box and the box in contact with the rail is improved, the energy dissipation effect of the vibration energy is improved, and the rail wave abrasion phenomenon is alleviated.

[0019] 4、The top plate of the energy consumption box is uniformly provided with a plurality of third flexible ropes, the bottom of the third flexible rope is fixedly provided with a third counterweight ball, the third counterweight ball lags behind the vibration direction of the energy consumption box under the action of inertia, so that the instantaneous swing direction of the third counterweight ball is opposite to the instantaneous vibration direction of the energy consumption box, the third counterweight ball hinders the vibration of the energy consumption box, improves the energy consumption, is beneficial to improve the dissipation of the rail vibration energy, alleviates the noise and the vibration of the rail, and suppresses the wave abrasion of the rail. And the third counterweight ball has high degree of freedom, and has good inhibitory effect on the transverse and vertical vibration of the rail.

[0020] The technical scheme of the application will be further described in detail below with reference to the drawings and examples. DRAWINGS

[0021] Figure 1 It is a perspective structural schematic diagram of the embodiment of the application; Figure 2 It is a top view structural schematic diagram of the embodiment of the application; Figure 3 It is a side view structural schematic diagram of the embodiment of the application; Figure 4 It is a schematic diagram of the internal structure of the damping mechanism of the embodiment of the application; Figure 5 It is a schematic diagram of the cross section structure of the damping mechanism of the embodiment of the application; Figure 6 It is a perspective structural schematic diagram of the transmission seat of the embodiment of the application; Figure 7 It is a schematic diagram of the internal structure of the transmission seat of the embodiment of the application; Figure 8 It is a schematic diagram of the cross section structure of the transmission seat of the embodiment of the application; Figure 9 It is a perspective structural schematic diagram of the fixing mechanism of the embodiment of the application; Figure 10 It is a side view structural schematic diagram of the fixing mechanism of the embodiment of the application; Figure 11 It is a schematic diagram of the cross section structure of the fixing mechanism of the embodiment of the application; Figure 12 For Figure 11 A enlarged view of the middle A; Figure 13 A schematic view of the clamping plate mounting structure of the embodiment of the present application; Figure 14 A schematic view of the power structure of the embodiment of the present application; Figure 15 A comparison chart of the initial state of the rail, the rail with the suppression device and the rail without the suppression device in terms of acceleration; Figure 16 A comparison chart of the initial state of the rail, the rail with the suppression device and the rail without the suppression device in terms of vertical wheel-rail force; Figure 17 A comparison chart of the initial state of the rail, the rail with the suppression device and the rail without the suppression device in terms of rail displacement; Figure 18 A comparison chart of the initial state of the rail, the rail with the suppression device and the rail without the suppression device in terms of rail surface irregularity.

[0022] Reference signs 1, suppression mechanism; 11, box body; 12, connecting block; 13, liquid inlet; 14, liquid outlet; 15, first flexible rope; 16, first counterweight ball; 17, second flexible rope; 18, second counterweight ball; 2, fixing mechanism; 21, base; 22, support leg; 23, fixing plate; 24, support plate; 25, clamping plate; 26, energy dissipation box; 27, transmission rod; 28, first spring; 29, insertion rod; 210, insertion hole; 211, locking hole; 212, locking block; 213, limiting hole; 214, second spring; 215, sliding block; 216, sliding hole; 217, sliding plate; 218, transmission hole; 219, connecting plate; 220, positioning plate; 221, sliding rod; 222, third spring; 223, push plate; 224, limiting groove; 225, ear plate; 226, guide rail; 227, top plate; 228, third flexible rope; 229, third counterweight ball; 3, rail. DETAILED DESCRIPTION

[0023] In the description of the application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In the description of the application, it should be noted that, unless otherwise specified and limited, the terms "provided", "mounted", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0024] In the present application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. If there is any inconsistency, the meaning described in the specification or derived from the content described in the specification shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0025] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] As shown in Figure 1 , Figure 2 , Figure 3 . A rail corrugation suppression device, comprising a suppression mechanism 1, the suppression mechanism 1 is symmetrically arranged on both sides of the rail waist of the rail 3. The bottom of the rail 3 is provided with a fixing mechanism 2 for fixing the suppression mechanism 1 on the rail 3. The suppression mechanism 1 suppresses the vibration and noise of the rail 3 from both sides of the rail 3.

[0027] As shown in Figure 4 , Figure 5The damping mechanism 1 includes a plurality of box bodies 11 arranged in a linear array, and a plurality of first damping layers and second damping layers are arranged in the box bodies 11, and the first damping layers and the second damping layers are arranged in a spaced manner. The first damping layer includes a plurality of first flexible ropes 15 arranged in a linear array, and the two ends of the first flexible rope 15 are fixed on the inner walls of the two sides of the box body 11. A plurality of first counterweight balls 16 are fixedly arranged on the first flexible rope 15. The second damping layer includes a plurality of second flexible ropes 17 arranged in a linear array, and the two ends of the second flexible rope 17 are fixed on the inner walls of the two ends of the box body 11. The second flexible rope 17 is arranged perpendicularly to the first flexible rope 15. A plurality of second counterweight balls 18 are fixedly arranged on the second flexible rope 17, and the second counterweight balls 18 are arranged in a staggered manner with the first counterweight balls 16. The first counterweight balls 16 and the second counterweight balls 18 can be metal balls.

[0028] The top of the box body 11 is provided with a liquid inlet 13, and the bottom of the box body 11 is provided with a liquid outlet 14. The liquid inlet 13 and the liquid outlet 14 are provided with rubber plugs for plugging the liquid inlet 13 and the liquid outlet 14, respectively. The inside of the box body 11 is filled with a damping agent, and the filling amount of the damping agent in the box body 11 is 60%-80% of the inner cavity of the box body 11. Adding more damping agent in the box body 11 will affect the weight of the damping mechanism 1 and the vibration of the damping agent, which is not conducive to the reduction of the vibration and noise of the steel rail 3. When the amount of the damping agent is small, the damping effect on the vibration and noise of the steel rail 3 is poor. When 60%-80% of the damping agent is added in the box body 11, the vibration and noise damping effect is better. The first counterweight balls 16 and the second counterweight balls 18 are immersed in the damping agent.

[0029] The damping agent is silicone oil, which has good viscosity and stability. During the vibration process of the steel rail 3, the silicone oil flows and vibrates in the box body 11 to generate viscous resistance, which hinders the transmission of vibration. This resistance will consume vibration energy; and the friction between silicone oil molecules in the vibration process will convert vibration energy into heat energy and dissipate, effectively reducing the vibration intensity of the steel rail 3, effectively attenuating the vibration of the wheel-rail system, and reducing the rail corrugation phenomenon of the steel rail 3.

[0030] The weight of the box body 11, the viscosity and the amount of the silicone oil are set according to the rail corrugation frequency of the steel rail 3, and the inherent frequency of the damping mechanism 1 is changed by changing the amount of the silicone oil and the number of the first counterweight balls 16 and the second counterweight balls 18, so that the inherent frequency of the damping mechanism 1 is close to or equal to the rail corrugation frequency of the steel rail 3, so that the damping mechanism and the steel rail 3 resonate. In the resonance state, the damping mechanism can more effectively absorb and dissipate energy, thereby better inhibiting the rail corrugation.

[0031] The first flexible rope 15 and the second flexible rope 17 have elasticity to adapt to the vibration of the first counterweight ball 16 and the second counterweight ball 18 with the damping liquid, the natural frequency of the first counterweight ball 16 and the second counterweight ball 18 is close to or equal to the corrugation frequency, so that the first counterweight ball 16 and the second counterweight ball 18 resonate, increase the amplitude of the first counterweight ball 16 and the second counterweight ball 18, absorb vibration energy, accelerate the dissipation of vibration energy, and improve the vibration suppression effect. The inhibitor also drives the first counterweight ball 16 and the second counterweight ball 18 to swing during vibration, further improving the vibration suppression effect. The first flexible rope 15 and the second flexible rope 17 are vertically arranged and have good suppression effect on the transverse and vertical vibration of the rail 3, reducing the corrugation phenomenon of the rail 3.

[0032] The vibration of the silicone oil, the first counterweight ball 16 and the second counterweight ball 18 can also slow down the vibration propagation of noise, absorb the vibration energy of noise, and improve the noise reduction effect.

[0033] The connecting block 12 is arranged between the box body 11 and the rail 3, the box body 11 on the damping mechanism 1 is fixed on the connecting block 12, and the connecting block 12 fixes and connects the plurality of box bodies 11 into an integral structure. The side of the connecting block 12 close to the rail 3 is matched with the rail waist shape of the rail 3, so that the connecting block 12 closely adheres to the rail waist of the rail 3. The connecting block 12 is a rubber block. The box body 11 is made of metal material, improving the rigidity of the box body 11.

[0034] As shown in Figure 9 , Figure 10 , Figure 11 The fixing mechanism 2 includes a base 21, and the bottom of the base 21 is fixedly provided with a support leg 22. The energy consumption box 26 is arranged in a linear array on the upper surface of the base 21, and a first spring 28 supporting the energy consumption box 26 is arranged between the energy consumption box 26 and the base 21. The two ends of the first spring 28 are fixedly connected with the energy consumption box 26 and the base 21 respectively. The natural frequency of the fixing mechanism 2 is set as the corrugation frequency, and the stiffness of the first spring 28 is set according to the corrugation frequency to improve the absorption of vibration energy by the first spring 28.

[0035] As shown in Figure 13The base 21 is fixedly provided with a fixed plate 23 on both sides, and the top of the fixed plate 23 is fixedly provided with a support plate 24 supporting the box body 11. The support plate 24 is provided with a clamping structure clamping the box body 11. The clamping structure includes a clamping plate 25 corresponding to the box body 11. The clamping plate 25 is located above the support plate 24. The bottom of the clamping plate 25 is fixedly provided with an ear plate 225 located between the two support plates 24. The ear plate 225 is connected with the side wall of the energy dissipation box 26 through a transmission rod 27, and the two ends of the transmission rod 27 are hingedly connected with the ear plate 225 and the energy dissipation box 26. The energy dissipation box 26 drives the clamping plate 25 to move through the transmission rod 27, so as to clamp the box body 11 on the web of the rail 3 through the clamping plate 25. The support plate 24 is provided with a limiting groove 224 having a guiding effect on the horizontal sliding of the clamping plate 25, and the bottom of the clamping plate 25 is fixedly provided with a protrusion matched with the limiting groove 224. The protrusion is located in the limiting groove 224 and is in sliding connection with the limiting groove 224. Rubber pads can be arranged on the contact surface between the support plate 24 and the box body 11 to buffer the vibration.

[0036] The base 21 is provided with a locking structure locking the energy dissipation box 26. The locking structure includes two locking units symmetrically arranged at the bottom of the energy dissipation box 26. The locking unit includes an insertion rod 29 fixedly arranged at the bottom of the energy dissipation box 26, and the base 21 is provided with an insertion hole 210 allowing the insertion rod 29 to be inserted. The base 21 is provided with a limiting hole 213 perpendicular to and communicating with the insertion hole 210, and a locking block 212 is slidably arranged in the limiting hole 213. A second spring 214 is arranged between the limiting hole 213 and the locking block 212. The insertion rod 29 is provided with a lock hole 211, and the locking block 212 is inserted into the lock hole 211 under the action of the second spring 214 to lock the insertion rod 29 in the insertion hole 210.

[0037] As Figure 12As shown. The base 21 is provided with a power structure that drives the locking block 212 to slide within the limiting hole 213. The power structure includes a slider 215. The locking block 212 is provided with a through hole that passes through the locking block 212, and the slider 215 is slidably disposed within the through hole. The length of the through hole is greater than the width of the slider 215, which meets the horizontal sliding requirements of the locking block 212. The base 21 is provided with a slot to accommodate the slider 215. The slider 215 is located within the slot and is slidably connected to the slot. The top of the slider 215 is provided with a transmission inclined surface, and the through hole of the locking block 212 is provided with a first inclined surface that matches the transmission inclined surface of the slider 215. When the slider 215 moves downward, the transmission inclined surface and the first inclined surface drive the locking block 212 to slide out of the locking hole 211. The bottom of the slider 215 is provided with a sliding hole 216. The slide plate 217 is located within the sliding hole 216 and is slidably connected to the sliding hole 216. The length of sliding hole 216 is greater than the width of slide plate 217, accommodating the vertical movement of slider 215. Slide plate 217 is provided with a transmission hole 218. A second inclined surface is provided within sliding hole 216, matching the inclined surface of transmission hole 218. When slide plate 217 slides horizontally, the second inclined surface and the inclined surface together drive slider 215 downward. Slide plate 217 and slider 215 drive locking block 212 to slide within limiting hole 213, providing convenient operation and high transmission stability.

[0038] like Figure 14 As shown. The power structure can also be configured as follows: the locking block 212 is L-shaped, and the slide 217 is fixedly connected to the bottom end of the L-shaped locking block 212. The end of the limiting hole 213 away from the socket 210 passes through the base 21, so that the bottom end of the locking block 212 extends from the limiting hole 213 and can slide within the limiting hole 213. The locking block 212 is directly driven to slide by the slide 217. This power structure is simple, but the locking block 212 is a cantilever structure, which has slightly poor stability.

[0039] The ends of the slides 217 on the two locking units are fixedly connected via a connecting plate 219. A slide rod 221 is fixedly mounted in the middle of the connecting plate 219. A positioning plate 220 is fixedly mounted at the bottom of the base 21. The positioning plate 220 has a through hole for the slide rod 221 to pass through. The slide rod 221 is slidably connected to the positioning plate 220. A third spring 222 is disposed between the positioning plate 220 and the connecting plate 219 to provide a restoring force for the slide 217. A push plate 223 is fixedly mounted at the end of the slide rod 221 to facilitate the sliding movement of the slide rod 221. A guide rail 226 is fixedly mounted on the base 21 to guide the horizontal movement of the slide rod 217.

[0040] for Figure 12The power structure in the rail 3 corrugation suppression device pulls the push plate 223 outward, the push plate 223 drives the sliding plate 217 to slide outward through the sliding rod 221, the sliding plate 217 directly drives the locking block 212 to move away from the insertion rod 29, the locking block 212 slides out of the lock hole 211, the first spring 28 resets, and the suppression device can be removed from the rail 3.

[0041] For Figure 14 The power structure in the rail 3 corrugation suppression device pulls the push plate 223 outward, the push plate 223 drives the sliding plate 217 to slide outward through the sliding rod 221, the sliding plate 217 directly drives the locking block 212 to move away from the insertion rod 29, the locking block 212 slides out of the lock hole 211, the first spring 28 resets, and the suppression device can be removed from the rail 3.

[0042] As Figure 6 , Figure 7 , Figure 8 The energy consumption box 26 is located directly below the rail 3. The top of the energy consumption box 26 is fixedly provided with a top plate 227, and the upper surface of the top plate 227 is fixedly provided with a rubber layer for buffering vibration. The top plate 227 is uniformly provided with a plurality of third flexible ropes 228, and adjacent rows of third flexible ropes 228 are arranged at intervals. The bottom of the third flexible rope 228 is fixedly provided with a third counterweight ball 229. The third flexible rope 228 is only fixed at the top end of the top plate 227, so the third counterweight ball 229 has a relatively high degree of freedom. When the energy consumption box 26 drives the third counterweight ball 229 to vibrate through the third flexible rope 228, the third counterweight ball 229 will swing, and the third counterweight ball 229 will lag behind the vibration direction of the energy consumption box 26 under the action of inertia, so that the instantaneous swing direction of the third counterweight ball 229 is opposite to the instantaneous vibration direction of the energy consumption box 26, the third counterweight ball 229 hinders the vibration of the energy consumption box 26, improves energy consumption, is conducive to improving the dissipation of rail 3 vibration energy, reducing noise and rail 3 vibration, and suppressing rail 3 corrugation.

[0043] The installation method of the above-mentioned rail 3 corrugation suppression device comprises the following steps: S1, the first counterweight ball 16 is fixed on the first flexible rope 15, the second counterweight ball 18 is fixed on the second flexible rope 17, and the third counterweight ball 229 is fixed at the bottom end of the third flexible rope 228. The two ends of the first flexible rope 15 and the second flexible rope 17 are fixed on the inner wall of the box body 11 respectively, and the top end of the third flexible rope 228 is fixed on the top plate 227.

[0044] S2, inject the suppression liquid into the box body 11 through the liquid inlet 13, and seal the liquid inlet 13.

[0045] S3, the base 21 is placed below the rail 3, the box 11 and the connecting block 12 are placed on the support plate 24. The rail 3 is pressed downward or the base 21 is pushed upward, the first spring 28 is compressed, the first spring 28 pushes the energy dissipation box 26 to contact the bottom of the rail 3. The insertion rod 29 is inserted into the insertion hole 210, the locking block 212 is inserted into the locking hole 211 under the action of the second spring 214, and the energy dissipation box 26 is locked.

[0046] S4, while the energy dissipation box 26 moves, the energy dissipation box 26 drives the clamping plate 25 to slide inward through the transmission rod 27, the clamping plate 25 clamps the box 11 and the connecting block 12 at the rail waist of the rail 3, and the installation of the suppression device is completed.

[0047] The initial state of the rail, the acceleration, the vertical wheel-rail force, the rail displacement and the rail surface irregularity of the rail installed with the suppression device and the rail without the suppression device are compared and analyzed, and the analysis results are shown in Figures 15-18 Figures 15-18 The suppression device refers to the suppression device described in the embodiment.

[0048] Figure 15 The size of the vertical vibration acceleration of the rail is described. The larger the value is, the more intense the vertical vibration of the rail is. As shown in Figure 15 After the suppression device is installed on the rail, the vertical vibration acceleration of the rail is effectively reduced. When the rail vibrates, the resistance generated by the suppressant in the suppression device due to viscosity consumes vibration energy; the swing of the first counterweight ball and the second counterweight ball in the vibration process also accelerates energy dissipation; the elasticity of the first flexible rope and the second flexible rope enables the counterweight ball to better adapt to vibration, and the two are vertically arranged to suppress vibration from multiple directions, thereby effectively reducing the vibration amplitude of the rail.

[0049] Figure 16 The size of the force borne by the rail during operation is described. The size of the force directly reflects the strength of the interaction between the wheel and the rail. As shown in Figure 16 After the suppression device is installed on the rail, the curve of the force borne by the rail is lower than that without the suppression device. This fully shows that after the suppression device described in the embodiment is installed on the rail, the force borne by the rail during operation can be effectively reduced. The energy dissipation box in the suppression device is located directly below the rail, and the suppression mechanism is symmetrically arranged on both sides of the rail waist. During the operation of the train, the interaction force between the wheel and the rail causes the rail to bear force, and the suppression device disperses and consumes part of the energy through the energy dissipation box and the suppression mechanism, thereby reducing the interaction force between the wheel and the rail. The first suppression layer, the second suppression layer and the suppressant in the suppression mechanism work cooperatively to change the transmission path and size of the force, so that the force transmitted to the rail is reduced, and thus the degree of rail corrugation is reduced. ​

[0050] Figure 17 It describes the displacement of the rail during operation, and the displacement reflects the degree of position change of the rail under the influence of vibration. Figure 17 As shown in the figure, installing a suppression device on the rail significantly reduces rail displacement. The fixing mechanism securely secures the suppression mechanism to the rail, while the suppression mechanism dampens rail vibration from both sides. When the rail vibrates, the fixing and suppression mechanisms work together. The fixing mechanism provides stable support, while the suppression mechanism dissipates vibration energy, reducing the vibration amplitude of the rail and, in turn, the displacement caused by vibration. The counterweight balls and suppressors in the suppression mechanism absorb and dissipate energy during vibration, controlling rail vibration, thereby reducing displacement and enhancing rail stability.

[0051] Figure 18 It measures the flatness of the rail surface. The larger the value, the more uneven the rail surface. Figure 18 As shown, after the suppression device is installed on the rail, the rail surface unevenness curve is significantly lower than the curve without the wear suppressor. This clearly demonstrates the significant effect of the suppression device on improving rail surface unevenness. Rail corrugation can cause increased rail surface unevenness. The suppression device described in this embodiment effectively reduces rail surface wear by suppressing rail vibration and stress. The suppression mechanism and energy dissipation box in the suppression device work together to reduce vibration acceleration, stress, and displacement, thereby reducing the wear on the rail surface during train operation, thereby reducing rail surface unevenness and extending the service life of the rail.

[0052] Therefore, the rail corrugation suppression device and the installation method of the present invention can solve the problem that the existing rail corrugation suppression device has a poor effect on reducing rail vibration and noise.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A rail corrugation suppression device, characterized by: It includes a suppression mechanism, which is symmetrically arranged on both sides of the rail waist. A fixing mechanism for fixing the suppression mechanism to the rail is provided at the bottom of the rail, and an energy dissipation box is provided on the fixing mechanism. The energy dissipation box is located directly below the rail; the suppression mechanism includes a plurality of boxes in a linear array, and a plurality of layers of first suppression layers and second suppression layers are provided inside the boxes, and the first suppression layers and the second suppression layers are arranged at intervals.

2. The rail corrugation suppression device according to claim 1, characterized in that: The first suppression layer includes a plurality of first flexible ropes distributed in a linear array, the two ends of the first flexible ropes are respectively fixed to the inner walls of the two sides of the box, and a plurality of first counterweight balls are fixed on the first flexible ropes; The second suppression layer includes several second flexible ropes distributed in a linear array, the two ends of the second flexible ropes are respectively fixed on the inner walls of the two ends of the box, the second flexible ropes are arranged perpendicular to the first flexible ropes, and several second counterweight balls are fixed on the second flexible ropes, and the second counterweight balls are staggered with the first counterweight balls.

3. The rail corrugation suppression device according to claim 2, characterized in that: The top of the box is provided with a liquid inlet, and the bottom of the box is provided with a liquid outlet. The liquid inlet and the liquid outlet are both provided with rubber plugs for sealing the liquid inlet and the liquid outlet respectively. The interior of the box is filled with an inhibitor, and the filling amount of the inhibitor in the box is 60%-80% of the inner cavity of the box. The first counterweight ball and the second counterweight ball are immersed in the inhibitor.

4. The rail corrugation suppression device according to claim 3, characterized in that: A connecting block is provided between the box body and the rail, the box body on the suppression mechanism is fixed on the connecting block, and the side of the connecting block close to the rail is adapted to the shape of the rail waist; the connecting block is a rubber block, the inhibitor is silicone oil, and the box body is made of metal.

5. The rail corrugation suppression device according to claim 4, characterized in that: The fixing mechanism includes a base, a supporting leg is provided at the bottom of the base, the energy consumption box is arranged in a linear array on the upper surface of the base, and a first spring supporting the energy consumption box is provided between the energy consumption box and the base; fixing plates are provided on both sides of the base, a supporting plate supporting the box body is provided on the top of the fixing plate, a clamping structure for clamping the box body is provided on the supporting plate, and a locking structure for locking the energy consumption box is provided on the base; The clamping structure includes a splint, which corresponds to the box body one by one. The splint is located above the support plate. An ear plate is provided at the bottom of the splint, which is located between the two support plates. The ear plate is connected to the side wall of the energy consumption box through a transmission rod, and the two ends of the transmission rod are hinged to the ear plate and the energy consumption box respectively; a limit groove is provided on the support plate to guide the horizontal sliding of the splint, and a protrusion adapted to the limit groove is provided at the bottom of the splint. The protrusion is located in the limit groove and is slidably connected to the limit groove.

6. The rail corrugation suppression device according to claim 5, characterized in that: The locking structure includes two locking units symmetrically arranged at the bottom of the energy consumption box, the locking unit includes an insertion rod fixedly arranged at the bottom of the energy consumption box, a socket for inserting the insertion rod is provided on the base, a limiting hole perpendicular to and connected to the socket is provided on the base, a locking block is slidingly arranged in the limiting hole, a second spring is provided between the limiting hole and the locking block, a locking hole is provided on the insertion rod, and the locking block is inserted into the locking hole under the action of the second spring to lock the insertion rod in the socket; a power structure that drives the locking block to slide in the limiting hole is provided on the base.

7. The rail corrugation suppression device according to claim 6, characterized in that: The power structure includes a slider, a locking block is provided with a through hole that passes through the locking block, the slider is slidably arranged in the through hole, a slot hole for accommodating the slider is provided on the base, the slider is located in the slot hole and is slidably connected to the slot hole, a transmission inclined surface is provided at the top of the slider, a first inclined surface that matches the transmission inclined surface of the slider is provided in the through hole of the locking block, and when the slider moves downward, the locking block is driven to slide out of the lock hole through the transmission inclined surface and the first inclined surface, a sliding hole is provided at the bottom end of the slider, the slide plate is located in the sliding hole and is slidably connected to the sliding hole, a transmission hole is provided on the slide plate, and a first inclined surface that matches the transmission inclined surface of the slider is provided in the sliding hole The inclined surface of the movable hole is adapted to the second inclined surface, and when the slide slides horizontally, the slider is driven to slide downward through the second inclined surface and the inclined surface; the end heads of the slides on the two locking units are connected by a connecting plate, a slide rod is provided in the middle of the connecting plate, a positioning plate is provided at the bottom of the base, a through hole is provided on the positioning plate for the slide rod to pass through, the slide rod is slidably connected to the positioning plate, a third spring is provided between the positioning plate and the connecting plate, the third spring provides restoring force for the slide, the end head of the slide is provided with a push plate for driving the slide to slide, and a guide rail that guides the horizontal sliding of the slide is provided on the base.

8. The rail corrugation suppression device according to claim 6, characterized in that: The power structure includes a slide plate, which is fixedly connected to the bottom end of the L-shaped locking block, and the end of the limit hole away from the socket passes through the base; the ends of the slide plates on the two locking units are connected by a connecting plate, a slide rod is provided in the middle of the connecting plate, a positioning plate is provided at the bottom of the base, a through hole is provided on the positioning plate for the slide rod to pass through, the slide rod is slidably connected to the positioning plate, a third spring is provided between the positioning plate and the connecting plate, the third spring provides restoring force for the slide plate, the end of the slide rod is provided with a push plate for driving the slide rod to slide, and a guide rail is provided on the base to guide the horizontal sliding of the slide plate.

9. A rail corrugation suppression device according to claim 7 or 8, characterized in that: The energy dissipation box is provided with a top plate on the top, a rubber layer is provided on the upper surface of the top plate, a plurality of third flexible ropes are evenly provided on the top plate, the third flexible ropes in adjacent rows are arranged at intervals, and a third counterweight ball is provided at the bottom of the third flexible rope.

10. A method for installing a rail corrugation suppression device according to claim 9, characterized in that: The following steps are involved: S1. Fix the first counterweight ball to the first flexible rope, the second counterweight ball to the second flexible rope, and the third counterweight ball to the bottom end of the third flexible rope. Fix the ends of the first and second flexible ropes to the inner walls of the box, respectively, and fix the top end of the third flexible rope to the top plate. S2. Inject the inhibitory liquid into the box through the liquid inlet and seal the liquid inlet; S3. Place the base under the rail, and place the box and connecting block on the support plate; press the rail downward or push the base upward, the first spring is compressed, and the first spring pushes the energy dissipation box to contact the bottom of the rail; insert the insertion rod into the insertion hole, and the locking block is inserted into the locking hole under the action of the second spring to lock the energy dissipation box; S4. When the energy dissipation box moves, the energy dissipation box drives the clamping plate to slide inward through the transmission rod. The clamping plate clamps the box body and the connecting block on the waist of the rail, completing the installation of the suppression device.

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