Low-damping friction pendulum isolation bearing

Abstract

The utility model provides a low-damping friction pendulum shock insulation support, which comprises a mounting plate, a damper, a damping sleeve damping frame, an elastic backing plate, first damping bodies, a connecting plate and a friction groove, one end of the mounting plate is fixedly connected with the connecting plate, one side of the connecting plate is fixedly connected with the first damping bodies, the friction groove is arranged between the first damping bodies, and a friction rod is fixedly connected between the first damping bodies. The friction rods are slidably connected in the friction grooves, one end of the mounting plate is fixedly connected with four damping rods through bolts, the outer walls of the damping rods are fixedly connected with second damping bodies, and the outer walls of the second damping bodies are slidably connected with damping sleeves. The damping sleeve is arranged in the supporting frame, the second damping bodies are slidably connected into the damping sleeve, the vertical vibration strength can be conveniently buffered and adjusted according to vibration changes, and the left-right moving position and strength of the supporting frame can be conveniently adjusted according to vibration by conducting friction connection between the first damping bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of pendulum seismic isolation supports, in particular to a low-damping friction pendulum seismic isolation support. Background Art

[0002] Under the action of earthquakes, overturning is the main potential damage form of building structures, especially high-rise building structures, and the tensile stress in the isolation bearings can easily cause the high-rise isolation structures to overturn. Therefore, the tensile resistance of the bearings is an important indicator for testing the overturning resistance of the isolation bearings.

[0003] According to the description in the disclosed friction pendulum seismic isolation bearing with anti-pullout device (authorization announcement number: CN203741993U), "the friction pendulum seismic isolation bearing with anti-pullout device includes an upper seat plate, a lower seat plate, anchor bolts, an upper plate assembly, a lower plate assembly, a friction pendulum spherical pendulum, and an anti-pullout device; the anti-pullout device includes a plurality of anti-pullout blocks symmetrically mounted on the left and right sides or the front and rear sides of the seismic isolation bearing, and the anti-pullout block includes an upper mounting member, a lower mounting member and a damping block; the upper mounting member and the lower mounting member are respectively connected to the upper end and the lower end of the damping block. The anti-pullout device is installed between the upper seat plate and the lower seat plate, and a guide groove is provided on the upper seat plate. The upper end of the anti-pullout block of the anti-pullout device is inserted into the guide groove, and the lower end is connected to the lower seat plate. The utility model has a simple structure, is easy to install, and is easy to repair and replace. It dissipates seismic energy through the plastic deformation of the anti-pullout device and plays an anti-pullout role, thereby protecting the upper structure and reducing the loss of life and property."

[0004] The existing damping device lacks the adjustment of the upper and lower positions caused by vibration, and cannot reduce the damping, resulting in certain limitations in the horizontal earthquake action of the movable support. Therefore, it is necessary to improve the low-damping friction pendulum isolation support to solve the above problems. Utility Model Content

[0005] In view of this, the utility model provides a low-damping friction pendulum isolation support to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is achieved as follows: a low-damping friction pendulum seismic isolation support includes a mounting plate, a damper, a damping sleeve damping frame, an elastic pad, a first damping body, a connecting plate and a friction groove, one end of the mounting plate is fixedly connected to the connecting plate, one side of the connecting plate is fixedly connected to the first damping body, a friction groove and a friction rod are fixedly connected between the first damping bodies, the friction rod is slidably connected inside the friction groove, one end of the mounting plate is fixedly connected to four damping rods by bolts, the outer wall of the damping rod is fixedly connected to the second damping body, and the outer wall of the second damping body is slidably connected to the damping sleeve.

[0007] Further preferably, an elastic pad is fixedly connected to the inner side wall of the damping frame, a support column is slidably connected inside the elastic pad, and a bottom end of the support column is fixedly connected to the inside of the damping frame.

[0008] Further preferably, a first damping body is fixedly connected to the top end of the elastic pad.

[0009] Further preferably, one end of the damping sleeve is fixedly connected to a damping frame.

[0010] Further preferably, the number of the damping sleeves is four, and the four damping sleeves are equidistantly and symmetrically arranged.

[0011] Further preferably, the number of the elastic pads is two, and the two elastic pads are symmetrical with the middle of the two first damping bodies as the center.

[0012] Further preferably, the first damping bodies are tightly fitted to each other.

[0013] The utility model embodiment adopts the above technical solution, which has the following advantages:

[0014] 1. By fixing the mounting plates of the whole equipment at the positions where damping support is required by bolts, a damping sleeve is arranged inside, and a second damping body is slidably connected inside the damping sleeve, so as to facilitate buffering and adjusting the vibration intensity up and down according to the change of vibration. By frictionally connecting the first damping bodies, it is convenient to adjust the left and right movement position and intensity of the support frame according to the vibration. By arranging friction grooves and friction rods inside the first damping body, it is convenient to increase the friction intensity, increase the damping intensity, and avoid long-term use, which leads to a decrease in friction between the damping bodies.

[0015] Second, by arranging an elastic pad and a support column between the first damping body and the damping frame, it is convenient to perform elastic buffering on the first damping body and effectively reduce the damping. By arranging the support column, the elastic pad can move up and down but cannot move left and right, thereby preventing the pad from uncontrolled displacement.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is the overall structure diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the elastic pad at the top of the mounting plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the first damping body at the top of the mounting plate of the utility model;

[0021] Figure 4 It is a schematic diagram of the second damping body at the top of the mounting plate of the utility model.

[0022] Figure numerals: 1, mounting plate; 2, damping rod; 3, damping sleeve; 4, damping frame; 5, elastic pad; 6, first damping body; 7, connecting plate; 8, friction groove; 9, friction rod; 10, support column; 11, second damping body. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Example

[0025] like Figure 1-Figure 4As shown, an embodiment of the utility model provides a low-damping friction pendulum seismic isolation support, including a mounting plate 1, a damper, a damping sleeve 3, a damping frame 4, an elastic pad 5, a first damping body 6, a connecting plate 7 and a friction groove 8, one end of the mounting plate 1 is fixedly connected to the connecting plate 7, one side of the connecting plate 7 is fixedly connected to the first damping body 6, a friction groove 8 and a friction rod 9 are opened between the first damping bodies 6, and the friction rod 9 is slidably connected inside the friction groove 8, one end of the mounting plate 1 is fixedly connected to four damping rods 2 by bolts, the outer wall of the damping rod 2 is fixedly connected to the second damping body 11, and the outer wall of the second damping body 11 is slidably connected to the damping sleeve 3, by fixing the mounting plate 1 of the entire equipment at the position where damping support is required by bolts, a damping sleeve 3 is arranged inside, and the second damping body 11 is slidably connected inside the damping sleeve 3, so as to facilitate the buffering and adjustment of the up and down vibration intensity according to the change of vibration.

[0026] In one embodiment, specifically, the inner wall of the damping frame 4 is fixedly connected with an elastic pad 5, the interior of the elastic pad 5 is slidably connected with a support column 10, and the bottom end of the support column 10 is fixedly connected to the interior of the damping frame 4. By arranging the elastic pad 5 and the support column 10 between the first damping body 6 and the damping frame 4, it is convenient to perform elastic buffering on the first damping body 6 and effectively reduce the damping.

[0027] In one embodiment, specifically, a first damping body 6 is fixedly connected to the top end of the elastic pad 5 .

[0028] In one embodiment, specifically, one end of the damping sleeve 3 is fixedly connected to the damping frame 4 .

[0029] In one embodiment, specifically, the damping sleeves 3 are provided in four numbers, and the four damping sleeves 3 are symmetrically arranged at equal distances.

[0030] In one embodiment, specifically, the elastic pads 5 are provided in two numbers, and the two elastic pads 5 are symmetrical with the middle of the two first damping bodies 6 as the center.

[0031] In one embodiment, specifically, the first damping bodies 6 are tightly fitted to each other.

[0032] When the utility model is working: the mounting plate 1 of the whole equipment is fixed at the position where damping support is required by bolts, a damping sleeve 3 is arranged inside, and a second damping body 11 is slidably connected inside the damping sleeve 3, so as to facilitate the buffering and adjustment of the up and down vibration intensity according to the change of vibration, and the first damping body 6 is frictionally connected, so as to facilitate the left and right movement position and intensity of the support frame according to the vibration adjustment, and the friction groove 8 and the friction rod 9 are arranged inside the first damping body 6, so as to facilitate the increase of friction intensity and damping intensity, and avoid the friction between the damping bodies being reduced due to long-term use, because the friction groove 8 does not penetrate the first damping body 6, the maximum swinging distance of the support frame can be limited, and the elastic pad 5 and the support column 10 are arranged between the first damping body 6 and the damping frame 4, so as to facilitate the elastic buffering effect on the first damping body 6 and effectively reduce the damping, and through the arrangement of the support column 10, it is convenient to make the elastic pad 5 move up and down but not move left and right, so as to prevent the pad from uncontrolled displacement.

[0033] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A low damping friction pendulum seismic isolation support, comprising a mounting plate (1), a damper, a damping sleeve (3), a damping frame (4), an elastic pad (5), a first damping body (6), a connecting plate (7) and a friction groove (8), characterized in that: One end of the mounting plate (1) is fixedly connected to a connecting plate (7), one side of the connecting plate (7) is fixedly connected to a first damping body (6), a friction groove (8) is provided between the first damping bodies (6) and a friction rod (9) is fixedly connected thereto, the friction rod (9) is slidably connected inside the friction groove (8), one end of the mounting plate (1) is fixedly connected to four damping rods (2) by bolts, the outer wall of the damping rod (2) is fixedly connected to a second damping body (11), and the outer wall of the second damping body (11) is slidably connected to a damping sleeve (3).

2. The low damping friction pendulum seismic isolation support according to claim 1, characterized in that: An elastic pad (5) is fixedly connected to the inner side wall of the damping frame (4), a support column (10) is slidably connected inside the elastic pad (5), and the bottom end of the support column (10) is fixedly connected to the inside of the damping frame (4).

3. The low damping friction pendulum seismic isolation support according to claim 1, characterized in that: The top end of the elastic pad (5) is fixedly connected to a first damping body (6).

4. The low damping friction pendulum isolation support according to claim 1, characterized in that: One end of the damping sleeve (3) is fixedly connected to a damping frame (4).

5. The low damping friction pendulum isolation support according to claim 1, characterized in that: The number of damping sleeves (3) is four, and the four damping sleeves (3) are symmetrically arranged at equal distances.

6. The low damping friction pendulum isolation support according to claim 1, characterized in that: Two elastic pads (5) are provided, and the two elastic pads (5) are symmetrical with the middle of the two first damping bodies (6) as the center.

7. The low damping friction pendulum seismic isolation support according to claim 1, characterized in that: The first damping bodies (6) are tightly fitted together.

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