Compression-shear type laminated rubber damping device

Abstract

The utility model discloses a compression-shear type laminated rubber damping device which comprises an upper structure and a lower structure, and the upper structure comprises a connecting top plate, an inner restraining plate and conical first steel plate layers which are sequentially arranged on the outer side of the inner restraining plate in a sleeving mode at intervals. The lower structure comprises a connecting bottom plate, a conical outer restraining plate arranged on the connecting bottom plate and conical second steel plate layers sequentially arranged on the inner side of the outer restraining plate in a sleeving mode at intervals, the first steel plate layers and the second steel plate layers are alternately arranged in a penetrating mode, and the rubber layers are arranged between the adjacent first steel plate layers and second steel plate layers; the first steel plate layer and the second steel plate layer in the whole structure are both conical, the rubber layer is arranged between the first steel plate layer and the second steel plate layer, vertical vibration reduction and transverse vibration reduction can be achieved at the same time, in addition, rubber materials are sheared and compressed in a low-stress state, good fatigue resistance is achieved, and the service life of the rubber materials is prolonged. Therefore, the damping device has better fatigue performance, and the arrangement of rubber materials adopts a rubber injection mode.

Description

Technical Field

[0001] The utility model relates to the technical field of urban rail transit, in particular to a compression-shear type laminated rubber vibration damping device. Background Art

[0002] With the rapid development of rail transit, the environmental vibration problem caused by rail transit has become more prominent, triggering a strong reaction from the public. This is mainly because subway lines often pass through densely populated areas, downtown areas with many buildings, scenic areas and science and technology parks in cities. The upper part or adjacent areas may be residential buildings, precision instrument rooms, ancient buildings and other areas that are sensitive to vibration and noise. When subway trains are running, buildings or residents will be affected by the vibration and noise of the foundation or surface caused by them, and residents and instruments in buildings will also be affected by secondary vibration and secondary noise. In particular, the environmental impact of vibration and noise generated after the subway network is formed will rise and become a public nuisance that cannot be ignored. In many countries in the world, there have been complaints about the damage of buildings along the line and the impact of residents along the line on their lives caused by the vibration and noise of trains. Therefore, how to effectively control and reduce the environmental vibration caused by rail transit has very important scientific research value and practical significance.

[0003] In recent years, a variety of new vibration-reducing track structures and a variety of vibration-reducing and noise-reducing measures have been used in urban rail transit, but there are generally shortcomings such as complicated construction procedures, long construction periods, high costs, and low cost-effectiveness, which restrict the development of urban rail transit in terms of vibration and noise reduction. In the design of vibration and noise reduction solutions for rail transit in my country, the vibration and noise reduction technical solutions are relatively simple and have many shortcomings. Therefore, it is particularly important and urgent to develop rail vibration reduction devices with more economical engineering costs and better vibration reduction effects using new materials, new processes, and new structures. Utility Model Content

[0004] The utility model aims to provide a compression-shear type laminated rubber vibration reduction device to achieve the purpose of improving the vibration reduction effect.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A compression-shear type laminated rubber vibration damping device comprises an upper structure and a lower structure bonded by a rubber layer, wherein the upper structure comprises a connecting top plate, a conical inner constraint plate arranged on the connecting top plate, and a first steel plate layer which is conical and sleeved on the outer side of the inner constraint plate in sequence, and the lower structure comprises a connecting bottom plate, a conical outer constraint plate arranged on the connecting bottom plate, and a second steel plate layer which is conical and sleeved on the inner side of the outer constraint plate in sequence, wherein the first steel plate layer and the second steel plate layer are alternately interspersed, and the rubber layer is arranged between adjacent first and second steel plate layers.

[0007] Preferably, the spacings between adjacent first steel plate layers are equal, and the spacings between adjacent second steel plate layers are equal.

[0008] Preferably, the intervals between adjacent first steel plate layers and second steel plate layers are equal.

[0009] Preferably, the connection top plate and the connection bottom plate are both circular in shape.

[0010] Preferably, the first steel plate layer, the second steel plate layer, the inner restraining plate and the outer restraining plate are all open at both ends.

[0011] Preferably, the first steel plate layer and the large opening end of the inner restraining plate are connected to the connecting top plate, and the second steel plate layer and the small opening end of the outer restraining plate are connected to the connecting bottom plate.

[0012] Preferably, the first steel plate layer and the second steel plate layer both include a plurality of stacked conical segments of equal thickness, and the thickness of the segments is 0.6 cm to 1.2 cm.

[0013] Preferably, the first steel plate layer or the inner restraining plate is connected to the second steel plate layer or the outer restraining plate through the rubber layer, and the rubber layer is formed by glue injection, and the thickness of the rubber layer is 0.5 cm to 1.0 cm.

[0014] Preferably, the inclination angle between the adjacent first steel plate layer and the second steel plate layer is 16 degrees to 17 degrees.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] 1. The first steel plate layer and the second steel plate layer inside the overall structure of the utility model are both conical, and a rubber layer is arranged between the first steel plate and the second steel plate. Under the action of vertical force and lateral force, the rubber layer is also subjected to compression and shearing, so it not only has vertical vibration reduction effect but also has lateral vibration reduction effect. In addition, the rubber material is subjected to shear compression under low stress state, and has very good fatigue resistance, so that the vibration reduction device has better fatigue performance.

[0017] 2. At the same time, compared with a simple shear type rubber shock absorber, the utility model has a higher vertical bearing capacity, and compared with a simple compression type rubber shock absorber, the utility model has a better deformation recovery ability, that is, it maintains the stability of the vertical stiffness.

[0018] 3. The utility model can adjust the contribution ratio of the shear force and the compression force of the rubber layer to the vertical bearing capacity by adjusting the inclination angle of the first steel plate layer and the second steel plate layer. This structural form is convenient for adjusting and optimizing the fatigue performance of the shock absorber.

[0019] 4. The lateral vibration of rail transit is usually about 0.3 times the vertical vibration. The optimal inclination angle of the adjacent first steel plate layer and the second steel plate layer is 16 to 17 degrees, which can ensure that they have the same deformation recovery ability under the action of vertical vibration and lateral vibration, and have stable vertical and lateral stiffness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a transverse cross-sectional view of the utility model;

[0023] Figure 3 It is a vertical cross-sectional view of the utility model;

[0024] Among them, 1. connecting top plate; 2. external constraint plate; 3. connecting bottom plate; 4. internal constraint plate; 5. first steel plate layer; 6. second steel plate layer; 7. rubber layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model aims to provide a compression-shear type laminated rubber vibration reduction device to achieve the purpose of improving the vibration reduction effect.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] refer to Figures 1 to 3, a compression-shear type laminated rubber vibration damping device, comprising an upper structure and a lower structure bonded by a rubber layer, the upper structure comprising a connecting top plate, a conical inner constraint plate arranged on the connecting top plate, and a first steel plate layer that is tapered and sleeved on the outer side of the inner constraint plate in sequence, the lower structure comprising a connecting bottom plate, a conical outer constraint plate arranged on the connecting top plate, and a second steel plate layer that is tapered and sleeved on the inner side of the outer constraint plate in sequence, the first steel plate layer and the second steel plate layer are alternately arranged, and the rubber layer is arranged between the adjacent first steel plate layer and the second steel plate layer; the first steel plate layer and the second steel plate layer inside the overall structure of the utility model are both conical, and a rubber layer is arranged between the first steel plate layer and the second steel plate layer, so that vertical vibration reduction can be achieved while lateral vibration reduction can be performed. In addition, the rubber material is subjected to shear compression in a low stress state and has very good fatigue resistance, so that the vibration damping device of the utility model has better fatigue performance.

[0029] Furthermore, the spacings between adjacent first steel plate layers are equal, and the spacings between adjacent second steel plate layers are equal.

[0030] Furthermore, the spacing between adjacent first steel plate layers and second steel plate layers is equal, so that the internal structure of the overall device can ensure uniformity of force no matter when subjected to lateral force or vertical force.

[0031] Furthermore, the inclination angle between the adjacent first steel plate layer and the second steel plate layer is 16 to 17 degrees, ensuring the same stable deformation recovery ability in the vertical and horizontal directions.

[0032] refer to Figure 2 The shapes of the connecting top plate and the connecting bottom plate are both circular.

[0033] refer to Figure 1 The first steel plate layer, the second steel plate layer, the inner restraint plate and the outer restraint plate are all open at both ends.

[0034] refer to Figure 3 The first steel plate layer and the large opening end of the inner restraint plate are connected to the connecting top plate, and the second steel plate layer and the small opening end of the outer restraint plate are connected to the connecting bottom plate.

[0035] Furthermore, the first steel plate layer and the second steel plate layer both include a plurality of stacked conical segments of equal thickness, and the thickness of the segments is 0.6 cm to 1.2 cm.

[0036] Furthermore, the first steel plate layer or the inner restraining plate is connected to the second steel plate layer or the outer restraining plate through the rubber layer, and the rubber layer is formed by glue injection, and the thickness of the rubber layer is 0.5 cm to 1.0 cm.

[0037] Adaptive changes made according to actual needs are all within the protection scope of this utility model.

[0038] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A compression-shear type laminated rubber vibration damping device, characterized in that: It includes an upper structure and a lower structure bonded by a rubber layer, the upper structure includes a connecting top plate, a conical inner constraint plate arranged on the connecting top plate, and a first steel plate layer that is tapered and sleeved on the outer side of the inner constraint plate in sequence; the lower structure includes a connecting bottom plate, a conical outer constraint plate arranged on the connecting bottom plate, and a second steel plate layer that is tapered and sleeved on the inner side of the outer constraint plate in sequence; the first steel plate layer and the second steel plate layer are alternately arranged, and the rubber layer is arranged between adjacent first and second steel plate layers.

2. A compression-shear type laminated rubber vibration damping device according to claim 1, characterized in that: The spacings between adjacent first steel plate layers are equal, and the spacings between adjacent second steel plate layers are equal.

3. A compression-shear type laminated rubber vibration damping device according to claim 2, characterized in that: The spacing between adjacent first steel plate layers and second steel plate layers is equal.

4. A compression-shear type laminated rubber vibration damping device according to claim 1, characterized in that: The connection top plate and the connection bottom plate are both circular in shape.

5. A compression-shear type laminated rubber vibration damping device according to claim 1, characterized in that: The first steel plate layer, the second steel plate layer, the inner restraining plate and the outer restraining plate are all opened at both ends.

6. A compression-shear type laminated rubber vibration damping device according to claim 5, characterized in that: The first steel plate layer and the large opening end of the inner restraining plate are connected to the connecting top plate, and the second steel plate layer and the large opening end of the outer restraining plate are connected to the connecting bottom plate.

7. A compression-shear type laminated rubber vibration damping device according to claim 5, characterized in that: The first steel plate layer and the second steel plate layer both include a plurality of stacked conical segments of equal thickness, and the thickness of the segments is 0.6 cm to 1.2 cm.

8. The compression-shear type laminated rubber vibration damping device according to claim 1, characterized in that: The first steel plate layer or the inner restraining plate is connected to the second steel plate layer or the outer restraining plate through the rubber layer, and the rubber layer is formed by glue injection, and the thickness of the rubber layer is 0.5 cm to 1.0 cm.

9. A compression-shear type laminated rubber vibration damping device according to claim 1, characterized in that: The inclination angle between the adjacent first steel plate layer and the second steel plate layer is 16 degrees to 17 degrees.

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