Local resonance type laminated rubber support and preparation method thereof

Abstract

The invention provides a local resonance type laminated rubber support and a preparation method. The local resonance type laminated rubber support comprises a vibration isolation unit. The center reinforcing column is sequentially sleeved with the multiple vibration isolation units. Each vibration isolation unit comprises a rubber main body, an inner-layer partition plate and a local resonance sphere; the inner-layer partition plate and the local resonance ball body are arranged between the rubber main bodies; and the local resonance ball body is used for blocking elastic wave transmission, so that the laminated rubber support resists a vertical load. Local resonance balls are arranged on the rubber main body and the inner-layer partition plate at equal intervals to generate the rubber main body with a local resonance effect. When elastic waves with specific frequency are transmitted, the local resonance balls resonate in the rubber main body or the local resonance ball bodies resonate, the local resonance balls are arranged in the rubber main body at equal intervals, the adjacent local resonance balls vibrate to generate a coupling phenomenon, and elastic wave transmission in a specific frequency range is blocked; and a band gap is formed, so that the vibration isolation and shock resistance of the laminated rubber support in the vertical direction is greatly improved.

Description

Technical Field

[0001] This application belongs to the technical field of vibration isolation and seismic isolation bearings, and specifically relates to a locally resonant laminated rubber bearing and a preparation method thereof. Background Art

[0002] With the development of industry, industrial equipment has become larger and larger. The operation of large equipment will inevitably generate vibrations, which will in turn cause potential safety hazards such as structural fatigue and fracture, especially unacceptable in equipment related to nuclear power plant safety. At the same time, earthquakes are a very serious natural disaster. During an earthquake, surface buildings will be distorted and deformed. When the earthquake is relatively strong, they may even collapse, causing huge economic losses and casualties. Therefore, seismic resistance is particularly crucial for the design of nuclear power plant containment structures. For the vibration isolation of large equipment and building seismic resistance, laminated rubber bearings are a relatively common means.

[0003] At present, most of the widely used laminated rubber bearings consider the action of horizontal loads, but the vertical vibration isolation and seismic resistance capabilities are insufficient. Summary of the Invention

[0004] Therefore, the present application aims to provide a locally resonant laminated rubber bearing and a preparation method thereof, which can solve at least one technical problem existing in the prior art.

[0005] To solve the above problems, the first aspect of the present application provides a locally resonant laminated rubber bearing, which includes a central strengthening column and vibration isolation units;

[0006] A plurality of the vibration isolation units are sequentially sleeved on the central strengthening column;

[0007] The vibration isolation unit includes a rubber main body, an inner layer partition board, and locally resonant spheres; the inner layer partition board and the locally resonant spheres are arranged between the rubber main body. The rubber main body is used to bear vertical loads, and the inner layer partition board is used to enhance the vertical load-bearing capacity; the locally resonant spheres are arranged at equal intervals; the locally resonant spheres are used to block the transmission of elastic waves to resist vertical loads.

[0008] Optionally, the inner layer partition board includes a first end face and a second end face, and the first end face and / or the second end face are provided with first grooves, and at least part of the structure of the locally resonant spheres is located in the first grooves.

[0009] Optionally, the rubber main body includes an upper layer of the rubber main body and a lower layer of the rubber main body, and one of the end faces of the upper layer of the rubber main body and / or the lower layer of the rubber main body is provided with second grooves, and at least part of the structure of the locally resonant spheres is located in the second grooves.

[0010] Optionally, the inner diameter of the first groove is larger than the outer diameter of the local resonance sphere, and a rubber pad is arranged in the first groove.

[0011] Optionally, an annular groove is arranged on one end face of the upper layer or the lower layer of the rubber main body, and the inner partition plate is arranged in the annular groove.

[0012] Optionally, the local resonance sphere includes a sphere shell, a counterweight and an elastomer. The counterweight is arranged in the sphere shell, and the elastomer is filled in the gap between the counterweight and the sphere shell.

[0013] Optionally, the center of the counterweight coincides with the center of the sphere shell.

[0014] Optionally, the counterweight is made of a metal or non-metal material with a relatively high density.

[0015] Optionally, the laminated rubber bearing further includes connecting plates. The two ends of the central reinforcing column are respectively sleeved with connecting plates. One connecting plate is attached to the upper layer of the outermost rubber main body, and the other connecting plate is attached to the lower layer of the outermost rubber main body.

[0016] The second aspect of the present application provides a preparation method of a local resonance type laminated rubber bearing for manufacturing the local resonance type laminated rubber bearing according to any one of the above. The preparation method includes:

[0017] Stack the rubber main body, the local resonance sphere and the inner partition plate vertically in sequence, and then complete the processing of the laminated rubber bearing through a vulcanization bonding process.

[0018] Beneficial effects

[0019] The embodiment of the present application provides a local resonance type laminated rubber bearing. By arranging local resonance spheres at equal intervals on the rubber main body and the inner partition plate, a rubber main body with a local resonance effect is generated. When elastic waves with a specific frequency are transmitted, the local resonance spheres resonate in the rubber main body, or the counterweight and the elastomer in the local resonance sphere resonate. Due to the equal interval arrangement of the local resonance spheres in the rubber main body, the vibrations of adjacent local resonance spheres are coupled, blocking the transmission of elastic waves in a specific frequency range and forming a band gap, which will greatly improve the vibration isolation and earthquake resistance capabilities of the laminated rubber bearing in the vertical direction. While blocking the transmission of vertical elastic waves, the enhanced grid structure formed by the arrangement of the spheres is used to improve the lateral shear strength, and the crack resistance is significantly improved by hindering the crack propagation path. Therefore, the lateral shear strength and crack resistance performance are significantly enhanced. Description of the drawings

[0020] Figure 1Cross-sectional view of the local resonance type laminated rubber bearing structure according to an embodiment of the present application;

[0021] Figure 2 Cross-sectional view of the local resonance sphere structure according to an embodiment of the present application.

[0022] The reference numerals are shown as:

[0023] 101 - upper layer of the rubber main body; 102 - lower layer of the rubber main body;

[0024] 2 - local resonance sphere; 201 - counterweight; 202 - elastomer; 203 - sphere housing;

[0025] 3 - rubber pad;

[0026] 4 - inner partition board;

[0027] 5 - connecting plate;

[0028] 6 - central strengthening column. Detailed implementation manners

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0031] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0033] Out of considerations for the safety requirements of buildings and large equipment as well as the vibration isolation performance of the equipment, in order to improve the vertical vibration isolation performance of the laminated rubber bearing, the local resonance technology is introduced, and a local resonance type laminated rubber bearing is designed. The first groove and / or the first groove are prefabricated on the inner layer partition 4, and the local resonance spheres 2 are periodically embedded in the grooves and in the rubber body. By adjusting the internal parameters and arrangement modes of the local resonance spheres 2, the bandgap frequency range can be artificially adjusted to achieve the effect of specifically improving the vertical vibration isolation performance of the laminated rubber bearing. Through the design of the embedding method, the energy consumption and size of the laminated cracking are increased, the cracking risk is reduced, and the reliability is increased. At the same time, the structure has the characteristics of simple structure and convenient processing. In order to improve the integrity of the laminated rubber bearing, the processing of the laminated rubber bearing is completed by adopting the vulcanization bonding process.

[0034] Combined with reference to Figures 1 to 2 As shown, according to the first aspect of the embodiments of the present application, a local resonance type laminated rubber bearing is provided, which includes a central strengthening column 6 and a vibration isolation unit;

[0035] A plurality of vibration isolation units are sequentially sleeved on the central strengthening column 6; the vibration isolation unit includes a rubber body, an inner layer partition 4 and local resonance spheres 2; the inner layer partition 4 and the local resonance spheres 2 are arranged between the rubber bodies. The rubber body is used to bear the vertical load, and the inner layer partition 4 is used to strengthen the vertical bearing capacity; the local resonance spheres 2 are arranged at equal intervals, and the local resonance spheres 2 are used to block the transmission of elastic waves to resist the vertical load.

[0036] When the laminated rubber bearing body is vulcanized and bonded, by arranging the local resonance spheres 2 uniformly and periodically on the rubber body and the inner layer partition 4, a rubber body with a local resonance effect is generated. When the elastic wave of a specific frequency is transmitted, the solid local resonance spheres 2 resonate in the rubber body, or the counterweight 201 and the elastic body 202 in the local resonance spheres 2 resonate. Since the local resonance spheres 2 are arranged at equal intervals in the rubber body, the vibrations of the adjacent local resonance spheres 2 are coupled, blocking the transmission of elastic waves in a specific frequency range and forming a bandgap, which will greatly improve the vertical vibration isolation and seismic resistance capabilities of the laminated rubber bearing without increasing the thickness of the laminated rubber layer too much, and thus a series of problems such as instability will not occur. At the same time, the laminated rubber bearing has the characteristics of simple structure and convenient processing.

[0037] The local resonance sphere 2 is used to block the transmission of elastic waves, enhance the resistance of the laminated rubber bearing to lateral loads, and prevent the rubber main body from cracking due to aging and lateral loads during use. At the same time, it resists vertical loads by blocking the transmission of elastic waves, enhances the lateral shear strength through the enhanced grid structure formed by periodic arrangement, and reduces the risk of cracking of the rubber main body by hindering the crack propagation path.

[0038] Among them, multiple vibration isolation units are sequentially sleeved on the central strengthening column 6. That is to say, the central strengthening column 6 passes through the centers of multiple vibration isolation units, providing lateral strengthening for each layer of vibration isolation units to prevent instability.

[0039] Specifically, in order to further enhance the damping performance of the laminated rubber bearing, the central strengthening column 6 can also be made of materials such as lead or tin.

[0040] Among them, the inner partition 4 and the local resonance sphere 2 are arranged between the rubber main bodies. That is to say, usually there are two rubber main bodies in one vibration isolation unit, and the inner partition 4 and the local resonance sphere 2 are arranged between the two rubber main bodies.

[0041] Among them, the upper rubber main body 101 and the lower rubber main body 102 are the main bodies of the laminated rubber bearing, mainly affecting the stiffness and damping of the laminated rubber bearing. The materials of the upper rubber main body 101 and the lower rubber main body 102 are rubber-like polymer materials, such as natural rubber, polyurethane, fluororubber, chlororubber, but not limited to these.

[0042] Among them, since the local resonance sphere 2 is a spherical structure and is isotropic, it has a good blocking effect on longitudinal waves and transverse waves in three directions. Therefore, the laminated rubber bearing also has the function of improving the lateral vibration isolation ability. The local resonance sphere 2 utilizes the elasticity of the upper rubber main body 101 and the lower rubber main body 102 itself to generate a local resonance effect.

[0043] Among them, the laminated rubber bearing can be a cylinder or a rectangle, and can also be designed into other structures according to specific working conditions; the local resonance spheres 2 are arranged circumferentially and extend from the center to the edge at the same time.

[0044] Among them, the local resonance spheres 2 are arranged at equal intervals. That is to say, the interval distances between adjacent local resonance spheres 2 are equal.

[0045] By adjusting the internal parameters and arrangement methods of the local resonance spheres 2, the bandgap frequency range can be artificially adjusted to achieve the purpose of specifically improving the vertical vibration isolation performance of the laminated rubber bearing.

[0046] It can also be understood that the periodic equidistant arrangement of the local resonance spheres 2 forms uniformly distributed rigid nodes in the rubber main body. When a transverse shear force acts, the stress is transmitted through the rubber main body between the local resonance spheres 2, avoiding stress concentration on a single plane, thereby improving the overall shear strength. During the crack propagation process, the crack needs to bypass the local resonance spheres 2, and the increased path length leads to an increase in energy dissipation. At the same time, the interfacial bonding between the local resonance spheres 2 and the rubber main body further consumes the crack energy.

[0047] The periodically arranged local resonance spheres 2 form a distributed reinforcement grid in the rubber main body, dispersing the shear stress and reducing local stress concentration; at the same time, as physical obstacles, they force the crack propagation path to detour, increasing the energy consumption of crack propagation and significantly reducing the cracking risk.

[0048] Among them, the inner partition 4 is a steel plate. The inner partition 4 is located between the rubber main bodies and provides the bearing capacity for the laminated rubber bearing.

[0049] In some embodiments, the inner partition 4 includes a first end face and a second end face. The first end face and / or the second end face are provided with a first groove, and at least a part of the structure of the local resonance sphere 2 is located in the first groove. The first groove is processed on the inner partition 4, and at least a part of the structure of the local resonance sphere 2 is arranged in the first groove to realize the positioning of the local resonance sphere 2.

[0050] Among them, the first end face and / or the second end face are provided with a first groove, that is to say, in the first case, the first end face of the inner partition 4 is provided with a first groove; in the second case, the second end face of the inner partition 4 is provided with a first groove; in the third case, both the first end face and the second end face of the inner partition 4 are provided with first grooves. The specific opening position of the first groove depends on the specific working conditions.

[0051] The first end face and / or the second end face are provided with a first groove, that is to say, the local vibration isolation spheres 2 can be arranged on one side of the inner partition 4, or the local vibration isolation spheres 2 can be arranged on both sides of the inner partition 4 at the same time.

[0052] In some embodiments, the rubber main body includes an upper rubber main body 101 and a lower rubber main body 102. One end face of the upper rubber main body 101 and / or the lower rubber main body 102 is provided with a second groove, and at least a part of the structure of the local resonance sphere 2 is located in the second groove. The second groove is processed on the upper rubber main body 101 and / or the lower rubber main body 102, and at least a part of the structure of the local resonance sphere 2 is arranged in the second groove to realize the positioning of the local resonance sphere 2.

[0053] Wherein, a second groove is provided on one end face of the upper rubber main body 101 and / or the lower rubber main body 102. That is to say, in the first case, a second groove is provided on one end face of the upper rubber main body 101, which is arranged in one-to-one correspondence with the first groove on the first end face of the inner partition plate 4, and they are buckled to form a cavity; in the second case, a second groove is provided on one end face of the lower rubber main body 102, which is arranged in one-to-one correspondence with the first groove on the second end face of the inner partition plate 4, and they are buckled to form a cavity; in the third case, second grooves are simultaneously formed on the opposite end faces of the upper rubber main body 101 and the lower rubber main body 102. At this time, the second grooves on the upper rubber main body 101 are arranged in one-to-one correspondence with the first grooves on the first end face of the inner partition plate 4, and they are buckled to form a cavity, and the second grooves on the lower rubber main body 102 are arranged in one-to-one correspondence with the first grooves on the second end face of the inner partition plate 4, and they are buckled to form a cavity. At the same time, local resonance spheres 2 are arranged in the above cavities for positioning the local resonance spheres 2.

[0054] Since the local resonance spheres 2 are simultaneously embedded between the rubber main body and the inner partition plate 4, the surface area between the inner partition plate 4 and the rubber main body is increased, and the bonding force is increased. At the same time, when cracking occurs, since the crack needs to bypass the local resonance spheres 2, this greatly increases the cracking energy. Therefore, the cracking risk of the laminated rubber bearing can be further effectively reduced, and the reliability is improved.

[0055] In some embodiments, the inner diameter of the first groove is larger than the outer diameter of the local resonance sphere 2, and a rubber pad 3 is arranged in the first groove.

[0056] Wherein, the rubber pad 3 is a thin rubber layer prefabricated in the first groove on the first end face of the inner partition plate 4 to prevent the local resonance sphere 2 from directly contacting the inner partition plate 4 during installation.

[0057] In some embodiments, an annular groove is provided on one end face of the upper rubber main body 101 or the lower rubber main body 102, and the inner partition plate 4 is arranged in the annular groove.

[0058] Wherein, an annular groove is provided on one end face of the upper rubber main body 101 or the lower rubber main body 102. That is to say, when an annular groove is formed on the upper rubber main body 101, a second groove is processed on the surface of the lower rubber main body 102 opposite to the annular groove on the upper rubber main body 101; when an annular groove is formed on the lower rubber main body 102, a second groove is processed on the surface of the upper rubber main body 101 opposite to the annular groove on the lower rubber main body 102. That is, annular grooves are not formed on the upper rubber main body 101 and the lower rubber main body 102 at the same time.

[0059] In some embodiments, the local resonance sphere 2 includes a sphere housing 203, a counterweight 201, and an elastomer 202. The counterweight 201 is disposed within the sphere housing 203, and the void between the counterweight 201 and the sphere housing 203 is filled with the elastomer 202.

[0060] Among them, the sphere housing 203 is made of a metal material that can be tightly bonded to a rubber material, and is used to form the space of the internal resonance structure of the local resonance sphere 2 and bond with the rubber main body.

[0061] Among them, the elastomer 202 can select an elastic material with an appropriate modulus according to the requirements of the control frequency range, such as rubber, polyurethane, etc., or directly select a metamaterial structure to generate the correct elastic modulus, such as an elastomer made of steel, etc.; it is used to cooperate with the counterweight 201 to generate resonance at a specific frequency.

[0062] The local resonance sphere 2 composed of the sphere housing 203, the counterweight 201, and the elastomer 202 can generate local resonance by itself because the elastomer 202 itself has good elasticity. Here, the local resonance sphere 2 is not limited to the above structure, and it can also be a solid metal sphere that acts together with the rubber main body to generate local resonance.

[0063] In some embodiments, the center of the counterweight 201 coincides with the center of the sphere housing 203. When the centers do not coincide, even without external interference, the structure may be unstable due to its own weight distribution. This instability may cause the structure to twist, thereby increasing the risk of overall bending failure. Therefore, here the center of the counterweight 201 coincides with the center of the sphere housing 203 to ensure the stability of the structure.

[0064] In some embodiments, the counterweight 201 is made of a metal or non-metal material with a relatively high density. This is mainly to cooperate with the elastomer 202 to generate resonance at a specific frequency.

[0065] Specifically, the counterweight 201 can be selected from one of steel, tungsten, and lead.

[0066] In some embodiments, the laminated rubber bearing further includes a connecting plate 5. The two ends of the central reinforcing column 6 are respectively sleeved with the connecting plate 5. One of the connecting plates 5 is attached to the upper layer 101 of the outermost rubber main body, and the other connecting plate 5 is attached to the lower layer 102 of the outermost rubber main body. The connecting plate 5 is used on the one hand to protect the upper layer 101 of the outermost rubber main body and the lower layer 102 of the outermost rubber main body; on the other hand, it is used to provide an installation surface for the laminated rubber bearing and connect with the vibration isolation structure.

[0067] Among them, the connecting plate 5 is a steel plate.

[0068] The second aspect of the present application is a preparation method of a local resonance type laminated rubber bearing for manufacturing the local resonance type laminated rubber bearing of any one of the above, and the preparation method includes:

[0069] Stack the rubber main body, the local resonance sphere 2 and the inner partition plate 4 vertically in sequence, and then complete the processing of the laminated rubber bearing through a vulcanization bonding process.

[0070] Taking the first end face of the inner partition plate 4 being provided with a first groove as an example for illustration.

[0071] Process the first groove on the first end face of the inner partition plate 4, wherein the inner diameter of the first groove is larger than the outer diameter of the local resonance sphere 2; process the spherical shell 203 and the elastomer 202 of a hemispherical shape, and complete the encapsulation of the local resonance sphere 2; manufacture each laminated rubber main body, and also pre-process a second groove at the corresponding first groove of the inner partition plate 4 of the rubber main body; pre-lay a rubber pad 3 at each first groove of the inner partition plate 4 to prevent the local resonance sphere 2 from directly contacting the inner partition plate 4 during installation, place each local resonance sphere 2 at each first groove of the inner partition plate 4, and then place the upper rubber main body 101 and the lower rubber main body 102 to form a vibration isolation unit; sleeve a plurality of vibration isolation units on the central strengthening column 6, and finally bond the upper rubber main body 101, the lower rubber main body 102, the inner partition plate 4 and the local resonance sphere 2 into a whole through a vulcanization bonding process to complete the processing of the laminated rubber bearing. The local resonance type laminated rubber bearing manufactured by the preparation method of the present application improves the vertical vibration isolation performance of the laminated rubber bearing and also improves the bonding strength between the rubber main bodies.

[0072] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above advantageous ways can be freely combined and superimposed.

[0073] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and variations can be made without departing from the technical principle of the present application, and these improvements and variations should also be regarded as within the protection scope of the present application.

Claims

1. A local resonance type laminated rubber bearing, characterized in that: include: Central reinforcement column (6); A vibration isolation unit, wherein a plurality of the vibration isolation units are sequentially mounted on the central reinforcement column (6); The vibration isolation unit comprises a rubber body, an inner layer partition (4) and a local resonance sphere (2); the inner layer partition (4) and the local resonance sphere (2) are arranged between the rubber body, the rubber body is used to bear vertical loads, and the inner layer partition (4) is used to enhance the vertical bearing capacity; the local resonance spheres (2) are arranged at equal intervals; and the local resonance spheres (2) are used to block the transmission of elastic waves so as to resist vertical loads.

2. The local resonance type laminated rubber bearing according to claim 1, characterized in that: The inner partition plate (4) comprises a first end surface and a second end surface, the first end surface and / or the second end surface is provided with a first groove, and at least a part of the structure of the local resonance sphere (2) is located in the first groove.

3. The local resonance type laminated rubber bearing according to claim 2, characterized in that: The rubber body comprises a rubber body upper layer (101) and a rubber body lower layer (102); one end surface of the rubber body upper layer (101) and / or the rubber body lower layer (102) is provided with a second groove; at least a part of the structure of the local resonance sphere (2) is located in the second groove.

4. A local resonance type laminated rubber bearing according to claim 2 or 3, characterized in that: The inner diameter of the first groove is greater than the outer diameter of the local resonance sphere (2), and a rubber pad (3) is arranged in the first groove.

5. The local resonance type laminated rubber bearing according to claim 3, characterized in that: One of the end faces of the rubber main body upper layer (101) or the rubber main body lower layer (102) is provided with an annular groove, and the inner layer partition plate (4) is arranged in the annular groove.

6. The local resonance type laminated rubber bearing according to claim 1, characterized in that: The local resonance sphere (2) comprises a sphere shell (203), a counterweight (201) and an elastic body (202); the counterweight (201) is arranged in the sphere shell (203), and the gap between the counterweight (201) and the sphere shell (203) is filled with the elastic body (202).

7. The local resonance type laminated rubber bearing according to claim 6, characterized in that: The center of the spherical body (201) coincides with the center of the spherical body (203).

8. The local resonance type laminated rubber bearing according to claim 6, characterized in that: The counterweight (201) is made of metal or non-metal material with a relatively high density.

9. The local resonance type laminated rubber bearing according to claim 1, characterized in that: The laminated rubber bearing further comprises a connecting plate (5), and the connecting plates (5) are respectively mounted on both ends of the central reinforcing column (6), wherein one connecting plate (5) is bonded to the upper layer (101) of the rubber body located at the outermost side, and the other connecting plate (5) is bonded to the lower layer (102) of the rubber body located at the outermost side.

10. A method for preparing a local resonance type laminated rubber bearing, characterized in that: Used to make the local resonance type laminated rubber bearing according to any one of claims 1 to 9, the preparation method comprising: The rubber main body, the local resonance sphere (2), and the inner layer partition (4) are stacked vertically in sequence, and then the laminated rubber bearing is processed through a vulcanization bonding process.

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