A three-way anisotropic shock-absorbing rubber support

Abstract

The utility model relates to rubber support technical field, concretely is a three -dimensional anisotropic shock attenuation rubber support, the utility model discloses a main body function layer and external protection layer, the external protection layer is covered in the outside of main body function layer, the main body function layer includes at least two corrugated stiffened sheets, and the rubber layer is arranged between two adjacent corrugated stiffened sheets, and the rubber layer and corrugated stiffened sheet staggered overlap, and the rubber layer is bonded together vulcanization between stiffened sheets, the external protection layer includes upper rubber protection layer, side rubber protection layer and lower rubber protection layer, and the periphery of rubber layer and corrugated stiffened sheet all and side rubber protection layer bond or vulcanization into a whole, the corrugated configuration form of support corrugated stiffened sheet that the utility model puts forward can make when support shearing deformation, and the effective shearing layer thickness of different directions can carry out different design, and the vertical deformation mode of support has changed, realizes longitudinal, lateral differentiating rigidity, yield force design, and realizes the vertical shock attenuation design.

Description

Technical Field

[0001] This utility model relates to the field of rubber bearing technology, specifically a triaxial anisotropic damping rubber bearing. Background Technology

[0002] In road traffic systems, due to traffic function requirements, irregular bridge structures such as bridges with varying widths and curved beams are frequently encountered. These bridges exhibit significant differences in dynamic characteristics in the longitudinal and transverse directions, and under seismic loading, the bearing displacements and pier stresses generated in the two directions are not the same.

[0003] In dynamic design, if rubber bearings with the same longitudinal and transverse mechanical properties are used, it is impossible to simultaneously take into account the longitudinal and transverse mechanical properties of the bridge structure, resulting in uneconomical structure. Currently, rubber bearings are mainly plate rubber bearings, high-damping rubber bearings, and lead-core rubber bearings, etc. Their horizontal force performance is basically the same, making it difficult to achieve differentiated design. Existing technologies use straight groove segmentation design, such as the anisotropic seismic isolation rubber bearing proposed in patent application number "CN21335753U", which can achieve stiffness difference design.

[0004] However, the rubber bearings proposed in the aforementioned patent applications have a limited range of stiffness adjustment, which affects the overall integrity of the bearings. On the other hand, during the operation of automobiles, trains, etc., the structure will experience significant vibrations, which often have adverse effects on the surrounding building structures. It is essential to reduce adverse vertical vibrations through the bearing system, but the existing rubber bearings have the problem of poor suppression of vertical vibrations. Utility Model Content

[0005] The purpose of this invention is to provide a triaxial anisotropic shock-absorbing rubber bearing to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A triaxial anisotropic damping rubber bearing includes a main functional layer and an outer protective layer. The outer protective layer covers the outside of the main functional layer. The main functional layer includes at least two corrugated stiffening plates. A rubber layer is disposed between two adjacent corrugated stiffening plates. The rubber layer and the corrugated stiffening plates are staggered and overlapped. The rubber layers between the stiffening plates are laminated and vulcanized together.

[0008] The external protective layer includes an upper rubber protective layer, a side rubber protective layer, and a lower rubber protective layer. The rubber layer and the corrugated stiffening plate are bonded or vulcanized to the side rubber protective layer to form a whole. The top of the side rubber protective layer is fixedly connected to the upper rubber protective layer, and the bottom of the side rubber protective layer is fixedly connected to the lower rubber protective layer, so as to realize the outer protective layer covering the main functional layer.

[0009] Preferably, the thickness of the corrugated stiffening plate is generally 2 to 10 mm, the thickness of the rubber layer is generally 2 to 10 times the thickness of the stiffening plate, the amplitude of the corrugated stiffening plate is matched with the thickness of the rubber layer, and the amplitude is generally less than the thickness of the rubber layer.

[0010] Preferably, the wave stiffening plate is divided into a first direction K and a second direction G, where the first direction K is perpendicular to the wave propagation direction and the second direction G is the wave propagation direction.

[0011] Preferably, the corrugated stiffening plate is made of steel or polyamide.

[0012] Preferably, the waveform of the waveform stiffening plate is a smooth curve or a wavy curve.

[0013] Preferably, the wavelength of the waveform stiffening plate is constant or variable.

[0014] The beneficial effects of this utility model are:

[0015] 1. The waveform structure of the support waveform stiffening plate proposed in this utility model allows for differentiated design of the effective shear layer thickness in different directions during support shear deformation, thereby changing the vertical deformation mode of the support, realizing differentiated stiffness and yield force design in the longitudinal and transverse directions, and achieving vertical vibration reduction design.

[0016] 2. This utility model achieves different stiffness ratios between the first direction K and the second direction G through waveform size design, and achieves different support displacement capabilities by adjusting the number of layers N, thus exhibiting strong design flexibility.

[0017] 3. The support in this utility model has high out-of-plane stiffness and good anti-warping performance. By selecting materials with relatively low modulus, such as polyamide, to make corrugated stiffening plates, the vibration reduction capacity of the support can be improved. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 Schematic diagram of the corrugated stiffening plate;

[0021] Figure 3 This is a utility model Figure 2 Front view of the corrugated stiffening plate.

[0022] The attached figures are labeled as follows:

[0023] 1. Corrugated stiffening plate; 2. Rubber layer; 3. Upper rubber protective layer; 4. Side rubber protective layer; 5. Lower rubber protective layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] A triaxial anisotropic damping rubber bearing includes a main functional layer and an outer protective layer. The outer protective layer covers the outside of the main functional layer. The main functional layer includes at least two corrugated stiffening plates 1. A rubber layer 2 is disposed between two adjacent corrugated stiffening plates 1. The rubber layer 2 and the corrugated stiffening plates 1 are staggered and overlapped. The rubber layers 2 between the stiffening plates 1 are laminated and vulcanized together.

[0026] The external protective layer includes an upper rubber protective layer 3, a side rubber protective layer 4, and a lower rubber protective layer 5. The rubber layer 2 and the corrugated stiffening plate 1 are all bonded to the side rubber protective layer 4. The top of the side rubber protective layer 4 is fixedly connected to the upper rubber protective layer 3, and the bottom of the side rubber protective layer 4 is fixedly connected to the lower rubber protective layer 5, so as to realize the outer protective layer covering the main functional layer.

[0027] The wave stiffening plate is divided into a first direction K and a second direction G. The first direction K is perpendicular to the wave propagation direction, and the second direction G is the wave propagation direction.

[0028] By designing the waveform of the stiffening plate 1, the total effective rubber layer thickness of the main functional layer of the support is consistent with the total thickness of the rubber layer 2 in the first direction K. In the second direction G, since the total thickness of the stiffening plate 1 after considering the waveform is h, which is significantly greater than the plate thickness of the stiffening plate 1, the total effective rubber layer thickness of the main functional layer of the support will be significantly less than the total thickness of the rubber layer 2.

[0029] Different effective total rubber layer thicknesses can achieve the design of bearing yield force and bearing shear stiffness in the first direction K and the second direction G. The bearing stiffness in the first direction K is less than the bearing stiffness in the second direction G. The stiffness ratio can be designed by different waveform stiffening plate 1 height h and wavelength L. The preferred ratio range is [1.1, 2.0].

[0030] The corrugated stiffening plate 1 is made of high-strength materials such as steel and polyamide.

[0031] The waveform stiffening plate 1 can be a smooth curve or a zigzag curve, and the wavelength can be constant or variable.

[0032] By adjusting the number of layers of the waveform stiffening plate 1 within the main functional layer, different displacement capacities of the support can be achieved.

[0033] The main advantages of this utility model are as follows:

[0034] 1. By using the geometric structure of the stiffening plate and different waveform dimensions, different mechanical parameters of the support in the horizontal direction can be designed, which has the characteristics of design adjustability, large design adjustment range, excellent ultimate displacement capacity and stable mechanical performance.

[0035] 2. The support has a simple structure, is easy to process and manufacture, has a mature and stable process, and is of reliable quality.

[0036] 3. The corrugated stiffening plate 1 provides excellent out-of-plane stiffness of the support and good anti-warping performance, providing more possibilities for the selection of support stiffening plate materials.

[0037] 4. The corrugated stiffening plate 1 has a certain vertical elasticity, which provides vertical vibration reduction capability for the support.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A triaxial anisotropic damping rubber bearing, comprising a main functional layer and an outer protective layer, characterized in that, The external protective layer covers the outside of the main functional layer. The main functional layer includes at least two corrugated stiffening plates (1). A rubber layer (2) is provided between two adjacent corrugated stiffening plates (1). The rubber layer (2) and the corrugated stiffening plates (1) are staggered and overlapped. The rubber layer (2) between the stiffening plates (1) is laminated and vulcanized. The external protective layer includes an upper rubber protective layer (3), a side rubber protective layer (4) and a lower rubber protective layer (5). The rubber layer (2) and the corrugated stiffening plate (1) are bonded or vulcanized to the side rubber protective layer (4) to form a whole. The top of the side rubber protective layer (4) is fixedly connected to the upper rubber protective layer (3), and the bottom of the side rubber protective layer (4) is fixedly connected to the lower rubber protective layer (5) to achieve the outer protective layer covering the main functional layer. The wave stiffening plate (1) is divided into a first direction K and a second direction G. The first direction K is perpendicular to the wave propagation direction, and the second direction G is the wave propagation direction. The corrugated stiffening plate (1) is made of steel or polyamide; The waveform of the waveform stiffening plate (1) is a smooth curve or a wavy curve; The wavelength of the waveform stiffening plate (1) is constant or variable.

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