Dual-control shock support

Abstract

The utility model discloses a kind of vibration and shock double-control support, comprising: upper connecting plate, lower connecting plate, horizontal shock isolation unit and vertical vibration isolation unit, horizontal shock isolation unit is located between upper connecting plate and lower connecting plate;Horizontal shock isolation unit is lead core laminated rubber support;Vertical vibration isolation unit is equipped with several, and array is arranged on the upper connecting plate and lower connecting plate, and vertical vibration isolation unit on the upper connecting plate and lower connecting plate is symmetrically arranged along lead core laminated rubber support.The vibration and shock double-control support vertical vibration isolation unit and horizontal shock isolation unit function do not couple each other, function does not interfere each other, effectively improve the flexibility of construction, maintenance, and avoid the problem that vertical flexible unit in existing coupling scheme can fail due to unable to withstand earthquake shear force, avoid unnecessary micro high-frequency vertical vibration fatigue of lead core laminated rubber support in normal use, guarantee the structural safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of vibration isolation technology, specifically to a vibration dual-control support. Background Technology

[0002] "Vibration" usually refers to vibrations that a structure experiences during normal use, such as those caused by wind loads or mechanical vibrations, which are not caused by earthquakes; "earthquake" specifically refers to the vibration impact of an earthquake on a structure.

[0003] "Dual vibration control" aims to comprehensively control the response of a structure to two different types of vibration sources, ensuring that the structure can maintain good performance when faced with various vibration disturbances, and ensuring its safety, applicability and durability.

[0004] Vibration-controlled bearings are located between the superstructure and substructure, used to support the superstructure and reduce vibration and seismic forces. Laminated rubber bearings are currently the mainstream product in seismic isolation, offering significant isolation effects. After years of engineering applications and industrial upgrades, the overall application process for laminated rubber bearings is very well-established. However, their high vertical stiffness cannot meet the requirements for isolating track vibrations. Therefore, a vibration-controlled bearing that meets the vibration isolation requirements is needed. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a vibration-controlled support with separate vertical and horizontal vibration isolation units that are functionally independent. The vibration isolation units can achieve a lower vertical frequency without affecting the horizontal vibration isolation function, and effectively improve the flexibility of construction and maintenance.

[0006] Specifically, this utility model is implemented as follows:

[0007] A vibration-controlled bearing includes: an upper connecting plate, a lower connecting plate, a horizontal vibration isolation unit, and a vertical vibration isolation unit, wherein the horizontal vibration isolation unit is disposed between the upper connecting plate and the lower connecting plate; the horizontal vibration isolation unit is a lead-core laminated rubber bearing.

[0008] The vertical vibration isolation unit is provided in several units and arranged in an array on the upper connecting plate and the lower connecting plate. The vertical vibration isolation units on the upper connecting plate and the lower connecting plate are symmetrically arranged along the lead core laminated rubber support.

[0009] The lead-core laminated rubber support includes:

[0010] A protective sleeve is provided between the upper connecting plate and the lower connecting plate;

[0011] Rubber sheet, with multiple sheets;

[0012] The first steel plate, multiple rubber sheets and multiple first steel plates are alternately and concentrically stacked and fixed together and concentrically fixed between the upper connecting plate and the lower connecting plate;

[0013] A lead core is disposed within the inner hole of a component consisting of multiple rubber sheets and multiple first steel plates.

[0014] Furthermore, the lead core is provided with cover plates at both the upper and lower ends.

[0015] Furthermore, each vertical vibration isolation unit includes:

[0016] Shear columns;

[0017] The combined elastomer is arranged concentrically with the shear column.

[0018] Furthermore, the composite elastomer includes:

[0019] An elastomer is arranged concentrically with the shear-resistant column;

[0020] The second steel plate is disposed on the side of the elastic body near the horizontal isolation unit;

[0021] The first disc spring is located on the side of the elastic body away from the horizontal vibration isolation unit.

[0022] Furthermore, the upper connecting plate, the lower connecting plate, and the cover plate are all provided with a first recess, and the combined elastic body is engaged with the first recess.

[0023] Furthermore, a second recess is provided within the first recess, and a buffer ring is provided on the inner wall of the second recess. One end of the shear-resistant column extends into the buffer ring, and the outer diameter of the shear-resistant column is smaller than the inner diameter of the buffer ring.

[0024] Furthermore, a second disc spring replaces the second steel plate. The concave surfaces of the first and second disc springs are arranged opposite each other. A first convex ring is provided on the upper connecting plate, the lower connecting plate, and the cover plate. The second disc spring is snapped onto the outer ring of the first convex ring. A third concave platform is provided inside the first convex ring. A buffer ring is provided on the inner wall of the third concave platform. One end of the shear-resistant column extends into the buffer ring. The outer diameter of the shear-resistant column is smaller than the inner diameter of the buffer ring.

[0025] Furthermore, shear-resistant columns are provided between two adjacent vertical vibration isolation units.

[0026] Furthermore, the combined elastomer is a cylindrical ring with a large diameter at both the top and bottom ends and a diameter that gradually decreases towards the middle.

[0027] Furthermore, the vibration-controlled support also includes:

[0028] An upper embedded plate assembly is located above the upper connecting plate and is connected to the vertical vibration isolation unit on the upper connecting plate, with its upper part connected to the upper structure.

[0029] The lower embedded plate assembly is located below the lower connecting plate and is connected to the vertical vibration isolation unit on the lower connecting plate. Its lower part is connected to the lower structure.

[0030] Vertical vibration isolation: The combined elastic body 4 uses the series structure of elastic body 401 and first disc spring 402 as a vibration isolation unit. The series stiffness of elastic body 401 and first disc spring 402 meets the requirements for vibration isolation. After the combined elastic body 4 is arranged in parallel array in the upper and lower layers, it is combined into a double-layer vibration isolation mechanism to reduce the vertical natural frequency of the upper structure and achieve the effect of isolating external vibration effects.

[0031] Working principle:

[0032] Vertical vibration isolation: The combined elastic body 4 uses the series structure of elastic body 401 and disc spring as the vibration isolation unit. The series stiffness of elastic body 401 and disc spring meets the requirements for vibration isolation. After the combined elastic body 4 is arranged in parallel array in the upper and lower layers, it is combined into a double-layer vibration isolation mechanism, which reduces the vertical natural frequency of the upper structure and achieves the effect of isolating external vibration effects.

[0033] Horizontal seismic isolation: When an earthquake occurs, the superstructure moves horizontally relative to the substructure. At this time, when there is a slight horizontal misalignment between the upper embedded plate 2 and the upper connecting plate 105, the upper shear column 5 contacts the second concave platform 108 / third concave platform 108' of the upper connecting plate 105 and prevents the horizontal misalignment between the upper embedded plate 2 and the upper connecting plate 105 from continuing to amplify.

[0034] After the upper shear column 5 transfers the inertial load of the superstructure to the lead core laminated rubber bearing 1, the lead core laminated rubber bearing 1 buffers the seismic action through its own horizontal deformation, while the lead core 103 plays a role in damping and dissipating energy.

[0035] Similarly, when there is a slight horizontal misalignment between the lower connecting plate 106 and the lower embedded plate 3 of the lead core laminated rubber bearing 1, the lower shear column 5 contacts the second recess 108 / third recess 108' of the lower connecting plate 106 and prevents the horizontal misalignment between the lower embedded plate 3 and the lower connecting plate 106 from continuing to increase.

[0036] The lower shear column 5 transfers the inertial load from the lead-core laminated rubber support 1 to the lower embedded plate 3, which in turn transfers the inertial load to the lower structure.

[0037] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0038] (1) The vibration-controlled support provided by this utility model has vertical vibration isolation unit and horizontal vibration isolation unit that are not coupled to each other and do not interfere with each other. This avoids the problem that the vertical flexible unit may fail due to the inability to withstand seismic shear force in the existing coupling scheme, and avoids the lead core laminated rubber support from being subjected to unnecessary micro-amplitude high-frequency vertical vibration fatigue during normal use, thus ensuring the structural safety and reliability.

[0039] (2) The vertical vibration isolation unit is connected in series with the lead core laminated rubber support, so that the support has sufficient strength in the vertical direction to support the upper structure.

[0040] (3) The vertical vibration isolation units are arranged in parallel arrays in the upper and lower layers to form a double-layer vibration isolation mechanism, which reduces the vertical natural frequency of the upper structure and achieves the effect of isolating external vibration effects. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the vibration-controlled support structure in Example 1;

[0042] Figure 2 This is a cross-sectional view of the vibration-controlled support in Example 1;

[0043] Figure 3 This is a schematic diagram of the internal structure of the vibration-controlled support in Example 1;

[0044] Figure 4 This is a schematic diagram of the horizontal and vertical vibration isolation units in Example 1;

[0045] Figure 5 This is a schematic diagram of the internal structure of the horizontal and vertical vibration isolation units in Example 1;

[0046] Figure 6 for Figure 2 A magnified view of a section at point A in the middle;

[0047] Figure 7 This is a schematic diagram of the vertical vibration isolation unit in Example 2;

[0048] Figure 8 This is a schematic diagram of the vertical vibration isolation unit in Example 3;

[0049] Figure 9 This is a schematic diagram of the vertical vibration isolation unit in Example 4;

[0050] Figure 10 This is a schematic diagram of the cylindrical ring in Example 4.

[0051] Figure label:

[0052] 1-Lead-core laminated rubber support; 101-Rubber sheet; 102-First steel plate; 103-Lead core; 104-Protective sleeve; 105-Upper connecting plate; 106-Lower connecting plate; 107-Cover plate; 108-Second recessed platform; 108'-Third recessed platform; 109-First convex ring; 2-Upper embedded plate; 3-Lower embedded plate; 4-Combined elastomer; 401-Elastomer; 402-First disc spring; 403-Second steel plate; 404-Second disc spring; 405-Cylindrical ring; 5-Shear column; 6-Buffer ring; 701-Lower sleeve; 702-Lower anchor bar; 801-Upper sleeve; 802-Upper anchor bar; 9-Lower structure; 10-Upper structure. Detailed Implementation

[0053] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0054] Example 1

[0055] like Figure 1-3 As shown, this embodiment provides a vibration-controlled support, including: an upper embedded plate assembly, an upper connecting plate 105, a lower connecting plate 106, a horizontal vibration isolation unit, a vertical vibration isolation unit, and a lower embedded plate assembly. The upper embedded plate assembly is embedded inside the upper structure 10, and the lower embedded plate assembly is embedded inside the lower structure 9. The upper connecting plate 105, the lower connecting plate 106, the horizontal vibration isolation unit, and the vertical vibration isolation unit are located between the upper embedded plate assembly and the lower embedded plate assembly, jointly supporting the upper structure 10.

[0056] The lower embedded plate assembly consists of a lower embedded plate 3, a lower sleeve 701, and a lower anchor bar 702. The lower sleeve 701 is fixedly installed with the lower anchor bar 702. The lower sleeve 701 and the lower anchor bar 702 are installed inside the lower structure 9. Bolts pass through the lower connecting plate 106 and the lower embedded plate 3 from top to bottom and are screwed onto the lower sleeve 701 to achieve a fixed connection. Similarly, the upper embedded plate assembly consists of an upper sleeve 801 and an upper anchor bar 802. The upper sleeve 801 is fixedly installed with the upper anchor bar 802. The upper sleeve 801 and the upper anchor bar 802 are installed inside the upper structure 10. Bolts pass through the upper connecting plate 105 and the upper embedded plate 2 from bottom to top and are screwed onto the upper sleeve 801 to achieve a fixed connection.

[0057] The horizontal seismic isolation unit is a lead-core laminated rubber bearing 1, which consists of a rubber sheet 101, a first steel plate 102, a lead core 103, a protective sleeve 104, an upper connecting plate 105, a lower connecting plate 106, and a cover plate 107. The outer edges of the upper connecting plate 105 and the lower connecting plate 106 are square, with a through hole in the middle. The rubber sheet 101 and the first steel plate 102 are both annular in appearance, with equal inner and outer diameters. Multiple rubber sheets 101 and multiple first steel plates 102 are alternately and concentrically stacked and fixed together, and concentrically fixed on the lower connecting plate 106. The upper connecting plate 105 is concentrically fixed on the component composed of the rubber sheet 101 and the first steel plate 102. The lead core 103 is cylindrical in shape and is installed inside the inner hole of the component consisting of the rubber sheet 101 and the first steel plate 102. Meanwhile, two cover plates 107 are respectively installed on the inner holes of the upper connecting plate 105 and the lower connecting plate 106.

[0058] like Figure 4-6 As shown, multiple vertical vibration isolation units are arranged in an array on the upper connecting plate 105 and the lower connecting plate 106. Each vertical vibration isolation unit includes a shear column 5 and a combined elastic body 4. The combined elastic body 4 includes an elastic body 401, a second steel plate 403, and a first disc spring 402. The shear column 5 corresponds one-to-one with the combined elastic body 4, and the two are installed concentrically. The elastic body 401 can be a spring, a rubber-based elastic body, etc., and the spring can be a helical spring.

[0059] Each of the upper connecting plate 105, lower connecting plate 106, and cover plate 107 has a first recess, into which the combined elastic body 4 is inserted. A second recess 108 is located within the first recess, and a buffer ring 6 is provided on the inner wall of the second recess 108. One end of the shear-resistant column 5 extends into the buffer ring 6 but does not contact the upper connecting plate 105, lower connecting plate 106, cover plate 107, or buffer ring 6. The outer diameter of the shear-resistant column 5 is smaller than the inner diameter of the buffer ring 6. When a slight horizontal misalignment occurs, the shear-resistant column 5 contacts the second recess 108 and prevents the horizontal misalignment from further amplifying.

[0060] Example 2

[0061] Based on Example 1, the following improvements are made:

[0062] like Figure 7As shown, the second disc spring 404 replaces the second steel plate 403. The concave surfaces of the first disc spring 402 and the second disc spring 404 are arranged opposite each other. The upper connecting plate 105, the lower connecting plate 106, and the cover plate 107 are all provided with a first convex ring 109. The outer diameter of the first convex ring 109 is slightly smaller than the inner hole of the second disc spring 404. The second disc spring 404 is snapped onto the outer ring of the first convex ring 109. A third concave platform 108' is provided inside the first convex ring 109. A buffer ring 6 is provided on the inner wall of the third concave platform 108'. One end of the shear column 5 extends into the buffer ring 6. The outer diameter of the shear column 6 is smaller than the inner diameter of the buffer ring 6.

[0063] Example 3

[0064] Based on Example 1, the following modifications are made:

[0065] like Figure 8 As shown, the shear column 5 and its buffer ring 6 are set outside the combined elastic body 4, that is, the shear column 5 is set between two adjacent vertical vibration isolation units. This method can separate the combined elastic body 4 from the shear column 5. At this time, there are no requirements for the inner hole of the combined elastic body 4.

[0066] Example 4

[0067] Based on Example 1, the following modifications are made:

[0068] like Figure 9-10 As shown, the combined elastic body 4 is modified into a cylindrical ring 405 with large diameters at the top and bottom ends and gradually decreasing diameters towards the middle, which is suitable for situations where the vertical vibration isolation frequency is relatively low.

[0069] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A vibration-controlled dual-control bearing, comprising: The system comprises an upper connecting plate (105), a lower connecting plate (106), a horizontal vibration isolation unit, and a vertical vibration isolation unit, wherein the horizontal vibration isolation unit is disposed between the upper connecting plate (105) and the lower connecting plate (106); characterized in that the horizontal vibration isolation unit is a lead-core laminated rubber bearing (1). The vertical vibration isolation unit is provided in several units and arranged in an array on the upper connecting plate (105) and the lower connecting plate (106). The vertical vibration isolation units on the upper connecting plate (105) and the lower connecting plate (106) are arranged symmetrically along the lead core laminated rubber support (1). The lead-core laminated rubber support (1) includes: A protective sleeve (104) is disposed between the upper connecting plate (105) and the lower connecting plate (106); Rubber sheet (101), multiple sheets are provided; The first steel plate (102), multiple rubber sheets (101) and multiple first steel plates (102) are alternately and concentrically stacked and fixed together and concentrically fixed between the upper connecting plate (105) and the lower connecting plate (106); A lead core (103) is disposed within the inner hole of a component consisting of multiple rubber sheets (101) and multiple first steel plates (102).

2. The vibration-controlled dual-control support as described in claim 1, characterized in that, The lead core (103) is provided with cover plates (107) at both the top and bottom ends.

3. The vibration-controlled dual-control support as described in claim 2, characterized in that, Each vertical vibration isolation unit includes: Shear column (5); The combined elastomer (4) is arranged concentrically with the shear column (5).

4. The vibration-controlled dual-control support as described in claim 3, characterized in that, The composite elastomer (4) includes: The elastomer (401) is arranged concentrically with the shear column (5); The second steel plate (403) is disposed on the side of the elastic body (401) near the horizontal isolation unit; The first disc spring (402) is located on the side of the elastic body (401) away from the horizontal isolation unit.

5. The vibration-controlled dual-control support as described in claim 4, characterized in that, The upper connecting plate (105), the lower connecting plate (106), and the cover plate (107) are all provided with a first recess, and the combined elastic body (4) is engaged with the first recess.

6. The vibration-controlled dual-control support as described in claim 5, characterized in that, The first recess is provided with a second recess (108), and the inner wall of the second recess (108) is provided with a buffer ring (6). One end of the anti-shear column (5) extends into the buffer ring (6), and the outer diameter of the anti-shear column (5) is smaller than the inner diameter of the buffer ring (6).

7. The vibration-controlled dual-control support as described in claim 4, characterized in that, The second disc spring (404) replaces the second steel plate (403). The concave surfaces of the first disc spring (402) and the second disc spring (404) are arranged opposite each other. The upper connecting plate (105), the lower connecting plate (106) and the cover plate (107) are all provided with a first convex ring (109). The second disc spring (404) is snapped onto the outer ring of the first convex ring (109). A third concave platform (108') is provided inside the first convex ring (109). A buffer ring (6) is provided on the inner wall of the third concave platform (108'). One end of the anti-shear column (5) extends into the buffer ring (6). The outer diameter of the anti-shear column (5) is smaller than the inner diameter of the buffer ring (6).

8. The vibration-controlled dual-control support as described in claim 1, characterized in that, Shear columns (5) are provided between two adjacent vertical vibration isolation units.

9. The vibration-controlled dual-control support as described in claim 3, characterized in that, The combined elastomer (4) is a cylindrical ring (405) with large diameters at the top and bottom ends and gradually decreasing diameters towards the middle.

10. The vibration-controlled dual-control support as described in claim 1, characterized in that, Also includes: The upper embedded plate assembly is located above the upper connecting plate (105) and is connected to the vertical vibration isolation unit on the upper connecting plate (105), and its upper part is connected to the upper structure (10). The lower embedded plate assembly is located below the lower connecting plate (106) and is connected to the vertical vibration isolation unit on the lower connecting plate (106), and its lower part is connected to the lower structure (9).

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