Rubber elastic base plate for rail transit

Abstract

The utility model relates to the technical field of rubber elastic cushion plates, and discloses a rubber elastic cushion plate for rail transit, which comprises a rubber elastic cushion body, a reinforcing component is arranged on the surface of the rubber elastic cushion body, the reinforcing component comprises a graphite heat dissipation layer, the bottom of the graphite heat dissipation layer is fixedly connected with the top of the rubber elastic cushion body, and the bottom of the graphite heat dissipation layer is fixedly connected with the top of the rubber elastic cushion body. The graphite heat dissipation layer is made of a graphene composite rubber material, the top of the graphite heat dissipation layer is fixedly connected with a plurality of anti-skid plates, and a plurality of buffer assemblies are arranged at the bottom of the metal net reinforcing layer. According to the rubber elastic cushion, heat can be quickly dissipated into the air through the graphite heat dissipation layer, the compressive rigidity can be improved and the sleeper pressure can be dispersed through the metal net enhancement layer, and therefore the effects of enhancing heat dissipation of the rubber elastic cushion body and improving the overall performance of the rubber elastic cushion body are achieved, and the problems that a traditional rubber elastic cushion is poor in heat dissipation effect and not prone to deformation are solved. And therefore, the overall use performance of the elastic cushion is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber elasticity pad plate technical field especially relates to a rubber elasticity pad plate for rail transit. BACKGROUND

[0002] The rubber elasticity pad plate for rail transit is a key damping component, is widely used in railway, subway and other rail systems, is installed between the steel rail and the sleeper or the track slab, and mainly functions include buffering wheel rail impact load, reducing vibration and noise transmission, adjusting track geometric position, and prolonging track structure service life, along with train running speed, axle load and environmental requirements are continuously improved, and the traditional rubber pad plate faces higher challenges in mechanical properties, durability and functionality.

[0003] At present, the common rubber elasticity pad plate adopts single rubber material or simple composite structure, relies on the elastic deformation of rubber to absorb vibration energy, part of the improved scheme adds carbon black and other fillers in the rubber matrix to improve the mechanical properties, or uses a fiber reinforced layer to improve the tear resistance, in addition, part of the high-end pad plate introduces a foamed rubber layer to improve the low-frequency vibration isolation effect, but the overall structure is still relatively simple, and the functional integration degree is limited.

[0004] However, the main technical bottleneck of the rubber elasticity pad plate for rail transit in actual application is the heat management problem caused by the poor heat conduction performance, the heat generated by the continuous friction between the wheel and the rail is difficult to conduct effectively through the traditional rubber material, causing the temperature accumulation in the pad plate, and then causing a series of performance degradation problems such as material thermal oxidation, elastic modulus rising, and compression permanent deformation increasing, not only significantly shortening the service life of the pad plate, but also leading to uncontrollable changes of the damping performance of the rail system, seriously affecting the driving safety and maintenance economy, therefore, the rubber elasticity pad plate for rail transit is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a rubber elasticity pad plate for rail transit, which aims at solving the problems of accelerated thermal aging, decreased buffering performance and easy-to-damage structure of the existing rubber elasticity pad plate for rail transit due to poor heat dissipation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A rubber elasticity pad plate for rail transit, comprising a rubber elasticity pad body, the rubber elasticity pad body is provided with a reinforcing assembly on the surface;

[0008] The reinforcing assembly includes a graphite heat dissipation layer, the bottom of the graphite heat dissipation layer is fixedly connected with the top of the rubber elastic pad body, the graphite heat dissipation layer is made of graphene composite rubber material, a plurality of anti-skid plates are fixedly connected to the top of the graphite heat dissipation layer, a plurality of flow guide grooves are arranged in the graphite heat dissipation layer, a fiber woven layer is fixedly connected to the bottom of the graphite heat dissipation layer, a sound insulation layer is fixedly connected to the bottom of the fiber woven layer, a metal mesh reinforcing layer is fixedly connected to the bottom of the sound insulation layer, and a plurality of buffer assemblies are arranged on the bottom of the metal mesh reinforcing layer.

[0009] As a further description of the above technical solution:

[0010] The plurality of buffer assemblies include a connecting shaft one and a supporting shaft one, the top end of the connecting shaft one is fixedly connected to the bottom of the metal mesh reinforcing layer, and the supporting shaft one is slidingly connected to the outer wall of the connecting shaft one.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the connecting shaft one is fixedly connected with a connecting plate, a plurality of telescopic rods are rotatably connected to the side wall of the connecting plate, and the bottom end of the supporting shaft one is in contact with the ground.

[0013] As a further description of the above technical solution:

[0014] One end of the telescopic rod is rotatably connected with a connecting block, and the bottom of the connecting block is fixedly connected with an extrusion plate.

[0015] As a further description of the above technical solution:

[0016] A plurality of springs are arranged on the top of the extrusion plate, one end of the spring is fixedly connected to the bottom of the connecting plate, and the other end is fixedly connected to the top of the extrusion plate.

[0017] As a further description of the above technical solution:

[0018] The bottom of the extrusion plate is fixedly connected with a connecting shaft two, and the outer wall of the connecting shaft two is slidingly connected with a supporting shaft two.

[0019] As a further description of the above technical solution:

[0020] The bottom of the supporting shaft two is fixedly connected with the inner wall of the supporting shaft one, and the connecting shaft two and the supporting shaft two are made of rubber material.

[0021] The utility model has the advantages of:

[0022] 1. The utility model discloses a graphite heat dissipation layer can quickly spread heat to the air, through the flow guide groove can drain rainwater, prevent rainwater accumulation, through the sound insulation layer can absorb specific frequency vibration, through the metal mesh reinforcing layer can improve the compression rigidity, disperse the sleeper pressure, so as to realize the heat dissipation of enhancing the rubber elastic pad body and improve its overall performance effect, solve the problem that traditional rubber elastic pad heat dissipation effect is poor, lead to its rapid aging, improve the overall use performance of the elastic pad.

[0023] 2. The utility model discloses a metal mesh reinforcing layer extrusion connecting shaft no. 1 makes connecting shaft no. 1 slide in support shaft no. 1 inside to further drive spring to occur elastic deformation, further drive connecting shaft no. 2 to slide in support shaft no. 2 inside through the elastic deformation of spring to realize the effect of quick absorption buffer impact force, solved the problem that traditional rubber pad plate is deficient in elastic recovery ability and dynamic stiffness is unstable under extreme impact load, improved the stability and durability of track equipment. ACCURACY OF DRAWINGS

[0024] Figure 1 A three-dimensional schematic view of a rubber elastic pad plate for rail transit is provided for the utility model;

[0025] Figure 2 An exploded view of a rubber elastic pad plate for rail transit is provided for the utility model;

[0026] Figure 3 A support shaft no. 1 sectional view structural schematic diagram of a rubber elastic pad plate for rail transit is provided for the utility model;

[0027] Figure 4 A Figure 3 Enlarged view of A in the middle.

[0028] Legend:

[0029] 1, rubber elastic pad body;2, graphite heat dissipation layer;3, antiskid plate;4, flow guide groove;5, fiber woven layer;6, sound insulation layer;7, metal mesh reinforcing layer;8, connecting shaft no. 1;9, support shaft no. 1;10, connecting plate;11, telescopic rod;12, connecting block;13, extrusion plate;14, spring;15, connecting shaft no. 2;16, support shaft no. 2. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] Referring to Figure 1 and Figure 2 The utility model provides a kind of rubber elastic pad plate for rail transit, including rubber elastic pad body 1, rubber elastic pad body 1 surface is provided with reinforcing assembly, reinforcing assembly is used for high efficiency heat dissipation and enhances the use performance of rubber elastic pad body 1;

[0032] Reinforcing assembly includes graphite heat dissipation layer 2, graphite heat dissipation layer 2 bottom and rubber elastic pad body 1 top are fixedly connected, graphite heat dissipation layer 2 adopts graphene composite rubber material, to improve the heat dissipation effect of rubber elastic pad body 1, so that in long time use process, the temperature control of rubber elastic pad body 1 is more efficient, to prolong service life, avoid the performance decline caused by overheating, graphite heat dissipation layer 2 top is fixedly connected with multiple antiskid plate 3, antiskid plate 3 plays the role of increasing friction, preventing sliding in the use process of rubber elastic pad body 1, help to provide stable support force, graphite heat dissipation layer 2 inside is provided with multiple flow guide grooves 4, for guiding the flow of rainwater, prevent rainwater accumulation, increase contact area with air simultaneously, graphite heat dissipation layer 2 bottom is fixedly connected with fiber braiding layer 5, the effect of fiber braiding layer 5 is to enhance the mechanical strength and tensile resistance of rubber elastic pad body 1, can also provide certain flexibility, adapt to the demand under different rail traffic environment, fiber braiding layer 5 bottom is fixedly connected with sound insulation layer 6, the main role of sound insulation layer 6 is to reduce the noise generated when rail traffic runs, sound insulation layer 6 bottom is fixedly connected with metal net reinforcing layer 7, the effect of metal net reinforcing layer 7 is to improve the overall structural strength and impact resistance of rubber elastic pad body 1, to cope with the external pressure and impact force brought by high-speed train, metal net reinforcing layer 7 bottom is provided with multiple buffer assemblies, buffer assembly is used to enhance the buffering effect of rubber elastic pad body 1.

[0033] Specifically, when rail traffic line faces heavy load, high speed, high frequency vibration or special geological conditions, first, graphite heat dissipation layer 2 plays the role of rapid heat conduction, it can quickly guide the heat generated by wheel-rail friction away, shorten heat transfer path, to effectively prevent rubber elastic pad body 1 from aging due to high temperature, by setting flow guide groove 4, provide flow path for rainwater, effectively avoid moisture accumulation, to reduce the performance degradation caused by rubber material damp, at the same time, the viscoelastic properties of fiber braiding layer 5 make it can provide the required elastic support for rubber elastic pad body 1, enhance the stability and comfort of pad, in addition, sound insulation layer 6 dissipates vibration energy through internal friction, effectively suppresses the noise generated by wheel-rail interface, to improve the overall structure of the quiet performance, reduce noise pollution, metal net reinforcing layer 7 plays a reinforcing role on the contact surface of rubber elastic pad body 1 and track bed, ensures stronger interfacial adhesion, effectively disperses concentrated stress at the same time, prevent rubber elastic pad body 1 bottom from tearing, to prolong service life.

[0034] Referring to Figure 3 and Figure 4 , the plurality of buffering components include a connecting shaft 8 and a supporting shaft 9, the connecting shaft 8 is fixedly connected at the top end to the bottom of the metal mesh reinforcing layer 7, the supporting shaft 9 is slidingly connected to the outer wall of the connecting shaft 8, the connecting shaft 8 and the supporting shaft 9 function in the buffering components to provide stable support and connection for the buffering components, the bottom end of the connecting shaft 8 is fixedly connected with a connecting plate 10, the side wall of the connecting plate 10 is rotatably connected with a plurality of telescopic rods 11, the telescopic rods 11 function to absorb and buffer a part of the impact force by virtue of their own contraction capacity, to ensure the stability of the movement of the components, the bottom end of the supporting shaft 9 is in contact with the ground, one end of each of the telescopic rods 11 is rotatably connected with a connecting block 12, the connecting block 12 functions to provide connection for the telescopic rods 11 and to ensure the stability of the movement of the telescopic rods 11, the bottom of the connecting block 12 is fixedly connected with an extrusion plate 13.

[0035] Specifically, to prevent the permanent deformation of the rubber elastic pad body 1 when it is subjected to a large impact force, the impact force will extrude the connecting shaft 8 when the rubber elastic pad body 1 is subjected to a large impact force, the connecting shaft 8 can slide and further extrude the telescopic rods 11 when subjected to an external force, so that the telescopic rods 11 are elastically deformed, and at the same time the springs 14 are also elastically deformed synchronously, thereby playing a role in quickly absorbing and buffering the impact force and preventing the compression permanent deformation of the rubber elastic pad body 1 caused by the excessive wheel-rail impact force, so as to effectively realize the dynamic response of the pad rigidity.

[0036] Referring to Figure 3 and Figure 4 , the top of the extrusion plate 13 is provided with a plurality of springs 14, the springs 14 function to absorb and buffer the impact force by virtue of their contraction capacity, and at the same time to provide elastic restoring force for the components by virtue of their stored elastic potential energy, to ensure that the components can be quickly reset after movement, one end of each of the springs 14 is fixedly connected to the bottom of the connecting plate 10, and the other end is fixedly connected to the top of the extrusion plate 13, the bottom of the extrusion plate 13 is fixedly connected with a connecting shaft 15, the outer wall of the connecting shaft 15 is slidingly connected with a supporting shaft 16, the connecting shaft 15 and the supporting shaft 16 further stabilize the impact force suffered by the components through the combined action of the connecting shaft 15 and the supporting shaft 16, the bottom of the supporting shaft 16 is fixedly connected with the inner wall of the supporting shaft 9, and the connecting shaft 15 and the supporting shaft 16 are both made of rubber material.

[0037] Specifically, at the same time, the connecting shaft two 15 will also slide inside the supporting shaft two 16, further buffering during the elastic deformation of the telescopic rod 11 and the spring 14, improving the overall response capability of the assembly, in addition, the elastic deformation of the spring 14 provides a restoring force for the assembly, ensuring that after the movement is completed, all components can quickly reset to the initial state, a series of movements not only ensure the efficient operation of the rubber elastic pad body 1, but also ensure its stability and durability during long-term use.

[0038] Working principle: when using the rubber elastic pad, the graphite heat dissipation layer 2 can quickly conduct away the heat generated by wheel-rail friction, shorten the heat transfer path, prevent the rubber elastic pad body 1 from aging due to high temperature, the flow channel 4 can provide a flow path for rainwater, prevent rainwater from accumulating, the viscoelastic properties of the fiber woven layer 5 can provide elastic support for the rubber elastic pad body 1, the internal friction of the sound insulation layer 6 can dissipate vibration energy and inhibit the propagation of structural noise, the metal mesh reinforcement layer 7 can enhance the interface bonding with the roadbed, disperse concentrated stress, prevent the rubber elastic pad body 1 from tearing at the bottom, to prevent the rubber elastic pad body 1 from permanent deformation, when the vehicle passes through the rubber elastic pad body 1 and causes a large pressure, the impact force extrudes the connecting shaft one 8, so that the connecting shaft one 8 slides inside the supporting shaft one 9, thereby further extruding the telescopic rod 11, so that the telescopic rod 11 is elastically deformed, at the same time, the spring 14 will also be elastically deformed, thereby quickly absorbing and buffering the impact force, preventing the rubber elastic pad body 1 from permanent deformation due to excessive wheel-rail impact force, thereby realizing the dynamic response of the stiffness of the rubber elastic pad body 1, at the same time, the connecting shaft two 15 will slide inside the supporting shaft two 16, further buffering, and the elastic deformation of the spring 14 also provides an elastic restoring force for the assembly, ensuring that the assembly can quickly reset after movement.

[0039] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A rubber elastic pad for rail transit, comprising a rubber elastic pad body (1), characterized in that: The surface of the rubber elastic pad body (1) is provided with reinforcing components; The reinforcing component includes a graphite heat dissipation layer (2), the bottom of which is fixedly connected to the top of the rubber elastic pad body (1). The graphite heat dissipation layer (2) is made of graphene composite rubber material. Multiple anti-slip plates (3) are fixedly connected to the top of the graphite heat dissipation layer (2). Multiple flow channels (4) are opened inside the graphite heat dissipation layer (2). A fiber braided layer (5) is fixedly connected to the bottom of the graphite heat dissipation layer (2). A sound insulation layer (6) is fixedly connected to the bottom of the fiber braided layer (5). A metal mesh reinforcement layer (7) is fixedly connected to the bottom of the sound insulation layer (6). Multiple buffer components are provided at the bottom of the metal mesh reinforcement layer (7).

2. The rubber elastic pad for rail transit according to claim 1, characterized in that: Multiple buffer components include a connecting shaft (8) and a support shaft (9). The top end of the connecting shaft (8) is fixedly connected to the bottom of the metal mesh reinforcement layer (7), and the support shaft (9) is slidably connected to the outer wall of the connecting shaft (8).

3. The rubber elastic pad for rail transit according to claim 2, characterized in that: The bottom end of the connecting shaft (8) is fixedly connected to a connecting plate (10), and multiple telescopic rods (11) are rotatably connected to the side wall of the connecting plate (10). The bottom end of the support shaft (9) is in contact with the ground.

4. A rubber elastic pad for rail transit according to claim 3, characterized in that: One end of each telescopic rod (11) is rotatably connected to a connecting block (12), and a pressing plate (13) is fixedly connected to the bottom of the connecting block (12).

5. A rubber elastic pad for rail transit according to claim 4, characterized in that: The top of the extrusion plate (13) is provided with multiple springs (14), one end of each spring (14) is fixedly connected to the bottom of the connecting plate (10), and the other end is fixedly connected to the top of the extrusion plate (13).

6. A rubber elastic pad for rail transit according to claim 5, characterized in that: The bottom of the extrusion plate (13) is fixedly connected to a connecting shaft two (15), and the outer wall of the connecting shaft two (15) is slidably connected to a support shaft two (16).

7. A rubber elastic pad for rail transit according to claim 6, characterized in that: The bottom of the second support shaft (16) is fixedly connected to the inner wall of the first support shaft (9), and both the second connecting shaft (15) and the second support shaft (16) are made of rubber.

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