A rubber gasket for rail transit connectors
The rubber liner of the rail transit connector, with its multi-layered buffer structure and spherical cavity design, solves the problem of insufficient buffering performance, achieves better vibration and impact energy absorption, and ensures stability and waterproof performance.
Patent Information
- Application Number
- CN202520252073.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-02-18
AI Technical Summary
The existing rubber pads in rail transit connectors have insufficient cushioning performance and cannot effectively cope with the vibration and impact during train operation.
A multi-layer buffer structure was designed, including an upper surface layer, a buffer layer, and a stable sidewall. The buffer layer consists of three layers, each with a spherical cavity and supporting ribs. The diameter and thickness of the spherical cavities increase progressively with different arrangements. Combined with the design of a water guide channel, the buffering effect is improved.
It significantly improves the cushioning performance of the rubber liner, effectively absorbs energy, dissipates stress, adapts to high-frequency, medium-frequency and low-frequency vibrations, prevents water accumulation, and ensures stable placement.
Smart Images
Figure CN223607663U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rubber gasket technical field, concretely is a rubber gasket for rail transit connecting piece. BACKGROUND
[0002] In rail transit, connecting piece needs to have high reliability, fatigue resistance and buffering performance to cope with vibration, impact and multidirectional load in train operation. For example, car connecting piece needs to provide buffering space while fixing car to avoid component damage or resonance problem caused by rigid connection, and the buffering structure of traditional connecting piece often adopts simple spring or single rubber pad. Rubber gasket has good buffering performance and is very common in rail transit connecting piece, which is used between steel rail and concrete sleeper. Its main function is to buffer high-speed vibration and impact generated when vehicle passes through rail to protect roadbed and sleeper.
[0003] However, the prior art still has great deficiencies, such as:
[0004] The main function of rubber gasket in the prior art is to resist impact and provide certain buffering between roadbed and sleeper. Therefore, buffering performance is the most important for gasket. However, the gasket in the prior art is usually a piece of rubber, which plays a buffering effect through the elasticity of rubber itself, but the overall buffering effect is poor. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a rubber gasket for rail transit connecting piece to solve the problems in the background art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A rubber gasket for rail transit connecting piece, comprising a gasket main body, wherein symmetrical stable side walls are arranged on both sides of the gasket main body.
[0008] The gasket main body is provided with four layers, the uppermost layer of the gasket main body is an upper surface layer, a plurality of water guide grooves are formed in the upper surface layer, and the bottom of the water guide groove is in an arc shape with the middle higher and the two ends lower.
[0009] A buffering layer is arranged below the upper surface layer, the buffering layer comprises a first buffering layer, a second buffering layer and a third buffering layer arranged in sequence from top to bottom, and a plurality of spherical cavities are arranged in the buffering layer.
[0010] Preferably, the diameters of the spherical cavities in the first buffering layer, the second buffering layer and the third buffering layer increase in sequence.
[0011] The thicknesses of the first buffering layer, the second buffering layer and the third buffering layer increase in sequence.
[0012] Preferably, the diameter of the spherical cavity inside the first buffer layer is 5mm, the diameter of the spherical cavity inside the second buffer layer is 10mm, and the diameter of the spherical cavity inside the third buffer layer is 15mm.
[0013] Preferably, the wall thickness of the spherical cavity inside the first buffer layer is 1.2mm, the wall thickness of the spherical cavity inside the second buffer layer is 0.8mm, and the wall thickness of the spherical cavity inside the third buffer layer is 1.5mm.
[0014] Preferably, the spherical cavities inside the first buffer layer are arranged in a square array, the spherical cavities inside the second buffer layer are arranged in a honeycomb array, and the spherical cavities inside the third buffer layer are arranged in a triangular array.
[0015] Preferably, the spherical cavities are provided with support ribs.
[0016] Preferably, the support ribs are regular hexagons.
[0017] Compared with the prior art, the utility model has the beneficial effects that:
[0018] 1. The three-layer buffer layer design improves the overall cushioning effect of the cushion, and the spherical cavities inside the buffer layer can further absorb energy and cushion, and the support ribs inside the spherical cavities further improve the cushioning performance of the spherical cavities.
[0019] 2. The different wall thicknesses and arrangement modes of the spherical cavities enable the buffer layer to well cushion high-frequency, medium-frequency and low-frequency vibrations.
[0020] 3. The water guide groove arranged on the upper layer and having a shape with a high middle and low ends can prevent water from accumulating inside, and the stable side wall makes the cushion easier to place. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 It is a schematic diagram of the arrangement of the spherical cavities inside the first buffer layer of the utility model;
[0023] Figure 3 It is a schematic diagram of the arrangement of the spherical cavities inside the second buffer layer of the utility model;
[0024] Figure 4 It is a schematic diagram of the arrangement of the spherical cavities inside the third buffer layer of the utility model;
[0025] Figure 5 It is a schematic diagram of the main body of the cushion of the utility model;
[0026] Figure 6 The supporting rib is a schematic view of the utility model.
[0027] In the figure: 1, cushion main body; 101, upper surface layer; 1011, water guide groove; 102, buffer layer; 1021, first buffer layer; 1022, second buffer layer; 1023, third buffer layer; 2, stable side wall; 3, spherical cavity; 4, supporting rib. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0029] Please refer to Figures 1-6 The utility model provides a technical scheme:
[0030] A kind of rubber cushion for rail transit connecting piece, including cushion main body 1, cushion main body 1 both sides symmetrically arranged with stable side wall 2;
[0031] The setting of stable side wall 2 in the embodiment ensures that the operator can be stabilized when placing cushion main body 1 on sleeper, and the length of cushion main body 1 is the same as the width of sleeper;
[0032] Cushion main body 1 is provided with 4 layers, and the uppermost layer of cushion main body 1 is an upper surface layer 101, a plurality of water guide grooves 1011 are formed in the upper surface layer 101, and the bottom of the water guide grooves 1011 is arc-shaped with the middle being higher and the ends being lower.
[0033] The water guide grooves 1011 in the embodiment are provided with multiple groups, which can ensure that water does not accumulate on the cushion main body 1 during use, and the water guide grooves 1011 with the middle being higher and the ends being lower can well guide the water out.
[0034] An upper surface layer 101 is provided below the upper surface layer 101, and the buffer layer 102 includes a first buffer layer 1021, a second buffer layer 1022 and a third buffer layer 1023 arranged in order from top to bottom, a plurality of spherical cavities 3 are arranged inside the buffer layer 102, a supporting rib 4 is arranged inside the spherical cavities 3, and the supporting rib 4 is regular hexagonal.
[0035] The buffer layer 102 in the embodiment is provided with three layers, and each layer is provided with a spherical cavity 3 inside, and the spherical cavity 3 is provided with a supporting rib inside, the supporting rib is hexagonal, the supporting rib can decompose the concentrated stress on the spherical cavity 3 into six directions, and the stress is decomposed to achieve better buffering effect.
[0036] The diameters of the spherical cavities 3 inside the first buffer layer 1021, the second buffer layer 1022 and the third buffer layer 1023 increase in turn;
[0037] The thicknesses of the first buffer layer 1021, the second buffer layer 1022 and the third buffer layer 1023 increase in turn.
[0038] The diameter of the spherical cavity 3 inside the first buffer layer 1021 is 5 mm, the diameter of the spherical cavity 3 inside the second buffer layer 1022 is 10 mm, and the diameter of the spherical cavity 3 inside the third buffer layer 1023 is 15 mm.
[0039] The wall thickness of the spherical cavity 3 inside the first buffer layer 1021 is 1.2 mm, the wall thickness of the spherical cavity 3 inside the second buffer layer 1022 is 0.8 mm, and the wall thickness of the spherical cavity 3 inside the third buffer layer 1023 is 1.5 mm.
[0040] The spherical cavity 3 and the support rib 4 inside it in the embodiment are formed by a mold. The wall thickness mentioned here refers to the distance between two adjacent spherical cavities 3, and is not the wall thickness in the conventional sense. The first buffer layer 1021 is set to 1.2 mm to ensure the rigidity of the surface, the thickness of the second buffer layer 1022 is set to be the thinnest, so that the second buffer layer 1022 can deform preferentially under pressure, and the wall thickness of the third buffer layer 1023 is set to be the thickest, so that the bottom can be prevented from collapsing excessively and maintaining the structural resilience.
[0041] The spherical cavities 3 inside the first buffer layer 1021 are arranged in a square array, the spherical cavities 3 inside the second buffer layer 1022 are arranged in a honeycomb shape, and the spherical cavities 3 inside the third buffer layer 1023 are arranged in a triangular shape.
[0042] The diameter of the spherical cavity 3 inside the first buffer layer 1021 in the embodiment is the smallest, which is 5 mm, and the small spherical cavities 3 are arranged densely and regularly. The small spherical cavities 3 arranged densely can form a continuous support surface, avoiding the risk of surface collapse caused by large-size cavities. The small spherical cavities 3 arranged densely can quickly dissipate high-frequency energy through local elastic deformation.
[0043] The diameter of the spherical cavity 3 inside the second buffer layer 1022 is 10 mm, and the spherical cavities 3 are arranged in a honeycomb shape. The honeycomb structure can cause the cavity wall to deform cooperatively, converting the vertical impact into horizontal tension. As a transition layer between the first buffer layer 1021 and the third buffer layer 1023, the honeycomb structure can avoid stress concentration caused by sudden changes in elastic modulus.
[0044] The spherical cavities 3 inside the third buffer layer 1023 are large-size cavities with a diameter of 10 mm, which serve as a bottom buffer and allow a higher compression ratio. The triangular arrangement can better disperse the stress.
[0045] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.
Claims
1. A rubber gasket for rail transport connection, comprising a gasket body (1), characterized in that: The gasket body (1) is symmetrically provided with stable side walls (2) on both sides; The gasket body (1) is provided with four layers, the uppermost layer of the gasket body (1) is an upper surface layer (101), a plurality of water guide grooves (1011) are formed in the upper surface layer (101), and the bottom of the water guide groove (1011) is in an arc shape with the middle being high and the two ends being low; A buffer layer (102) is arranged below the upper surface layer (101), the buffer layer (102) comprises a first buffer layer (1021), a second buffer layer (1022) and a third buffer layer (1023) arranged in sequence from top to bottom, and a plurality of spherical cavities (3) are arranged in the buffer layer (102).
2. A rubber gasket for rail transit connectors according to claim 1, characterized in that: The diameters of the spherical cavities (3) in the first buffer layer (1021), the second buffer layer (1022) and the third buffer layer (1023) increase in sequence. The thicknesses of the first buffer layer (1021), the second buffer layer (1022) and the third buffer layer (1023) increase in sequence.
3. A rubber gasket for rail transit connectors according to claim 2, characterized in that: The diameter of the spherical cavity (3) in the first buffer layer (1021) is 5 mm, the diameter of the spherical cavity (3) in the second buffer layer (1022) is 10 mm, and the diameter of the spherical cavity (3) in the third buffer layer (1023) is 15 mm.
4. A rubber gasket for rail transit connectors according to claim 3, characterized in that: The wall thickness of the spherical cavity (3) in the first buffer layer (1021) is 1.2 mm, the wall thickness of the spherical cavity (3) in the second buffer layer (1022) is 0.8 mm, and the wall thickness of the spherical cavity (3) in the third buffer layer (1023) is 1.5 mm.
5. The rubber gasket for rail transit connectors according to claim 1, characterized in that: The spherical cavities (3) in the first buffer layer (1021) are arranged in a square array, the spherical cavities (3) in the second buffer layer (1022) are arranged in a honeycomb shape, and the spherical cavities (3) in the third buffer layer (1023) are arranged in a triangular shape.
6. The rubber gasket for rail transit connectors according to claim 1, characterized in that: A support rib (4) is arranged in the spherical cavity (3).
7. A rubber gasket for rail transport couplings according to claim 6, characterized in that: The support rib (4) is in a regular hexagonal shape.