CN211547300U

CN211547300U - Three-dimensional gear type self-resetting energy-consumption shock-insulation support

Info

Publication number: CN211547300U
Application number: CN201921417137.1U
Authority: CN
Inventors: 胡思聪; 邹旖轩; 席荣光; 支清; 黄正
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-09-22
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to an antidetonation safety technical field especially relates to a three-dimensional gear type is from restoring to throne power consumption isolation bearing. Comprises an upper limiting plate, an upper rubber layer, an upper supporting plate, an ellipsoid rotating body with teeth, a lower supporting plate, a lower rubber layer and a lower limiting plate which are arranged from top to bottom in sequence. The upper support and the lower support are provided with a plurality of shear keys which are connected, and rubber sealing rings are arranged on the outer sides of the shear keys. The upper limiting plate is connected with the main beam through a stud, and the lower limiting plate is connected with the bent cap through a stud. Through the meshing effect of the gears, the ellipsoid body with the gear in the middle is shifted under the action of strong shock, meanwhile, the stress area is unchanged, the stress is uniform, the overturning danger is reduced, the rotation angle of the ellipsoid rotator is limited by limit stops on two sides of the gear ring, and the phenomenon that different components are separated from each other is effectively avoided.

Description

Three-dimensional gear type self-resetting energy-consumption shock-insulation support

Technical Field

The utility model relates to an antidetonation safety technical field especially relates to a three-dimensional gear type is from restoring to throne power consumption isolation bearing.

Background

Destructive earthquakes frequently occur in China and even the world, and bridge structures are easy to destroy under the action of earthquakes. The bridge is used as a pivot project of a traffic lifeline, and if the bridge is damaged under the action of an earthquake, huge economic loss can be caused, and effective operation of rescue work can be influenced. Therefore, for bridges in areas with frequent earthquakes, the earthquake resistance is one of the important factors that restrict the safety of the bridges. The support is one of the key components for determining the seismic performance of the bridge. In recent years, in order to improve the seismic performance of the structure, an earthquake reduction and isolation support is usually arranged at the position of the support, kinetic energy is converted into gravitational potential energy through the lifting main beam effect of the earthquake reduction and isolation support to consume energy, the displacement response of an earthquake is reduced, the natural vibration period of the structure is prolonged, the earthquake energy transmitted to the upper structure is reduced, and the effect of seismic isolation and energy consumption is achieved. The damping support has the advantages of low engineering cost, simple structure, convenient installation and the like, can meet the daily use requirement of the structure, and can provide certain damping and shock insulation capability under the action of strong shock.

The existing shock insulation support is mostly a friction pendulum support, and the main principle is that the self-vibration period of a lower structure is prolonged through swinging through a specific arc surface, so that the shock insulation function is realized. Although the friction pendulum support has the function of lifting the main beam and consuming energy, the stress area is too small in the lifting state, and the friction pendulum support is easy to separate from different components under the action of strong shock. Meanwhile, the existing seismic isolation and reduction support can only adapt to the displacement and deformation of the longitudinal bridge direction of the bridge, the transverse displacement and deformation capacity of the bridge is limited, and the maximum seismic isolation and reduction effect is difficult to exert. Meanwhile, the existing seismic isolation bearing is insufficient in anti-drop parts, and the safety performance needs to be improved. Meanwhile, under the action of an earthquake, when the residual displacement of the friction pendulum exists, the earthquake excitation is small, or the self weight of an upper building is insufficient, the support of the friction pendulum cannot be completely reset.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of prior art, adapt to reality needs, provide a three-dimensional gear type from restoring to throne power consumption isolation bearing.

In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do: a three-dimensional gear type self-resetting energy-consumption isolation bearing comprises an upper limiting plate, an upper rubber layer, an upper bearing plate, a toothed ellipsoid rotating body, a lower bearing plate, a lower rubber layer and a lower limiting plate which are arranged from top to bottom in sequence, wherein the upper bearing plate and the lower bearing plate are connected through a plurality of shear keys, and rubber sealing rings are arranged on the outer sides of the shear keys.

Further, the upper limiting plate is connected with the main beam through a stud, and the lower limiting plate is connected with the cover beam through a stud.

Furthermore, the upper part of the lower support plate is provided with an annular toothed groove concave surface which is matched with the ellipsoidal gear ring, and the outer ring of the toothed groove is provided with a limit stop which is in limit fit with limit grooves on two sides of the gear ring.

Furthermore, the lower part of the upper support plate is provided with an annular toothed groove concave surface which is matched with the ellipsoidal gear ring, and the outer ring of the toothed groove is provided with a limit stop which is in limit fit with limit grooves on two sides of the gear ring.

Furthermore, a rubber layer is laid between the upper support plate and the upper limiting plate, and the upper rubber layer is connected with the upper support plate and the upper limiting plate through small clamping grooves.

Further, a rubber layer is laid between the lower support plate and the lower limiting plate, and the lower rubber layer is connected with the lower support plate and the lower limiting plate through small clamping grooves.

Furthermore, the length of the limiting ring is larger than the thickness of the rubber layer, and a certain gap is reserved between the limiting ring and the rubber layer.

The beneficial effects of the utility model reside in that:

1, realize the two-way lifting of girder level, be applicable to actual engineering and convenient to popularize and use more.

2. Through the meshing effect of the gears, the ellipsoid body with the gear in the middle is shifted under the action of strong shock, meanwhile, the stress area is unchanged, the stress is uniform, the overturning danger is reduced, the rotation angle of the ellipsoid rotator is limited by limit stops on two sides of the gear ring, and the phenomenon that different components are separated from each other is effectively avoided.

3. The whole device has strong self-resetting capability through the meshing of the gears under the action of gravity. 4. A rubber layer is laid between the support plate and the limiting plate and is connected through a small clamping groove, the rubber horizontally moves in a staggered mode to consume energy, earthquake displacement response is reduced, the limiting ring limits rubber dislocation displacement, and parts are prevented from falling off.

5. Three protection preventing components are arranged to drop off: go up spacing circle, limit stop, lower spacing circle, ensure whole device high security performance.

6. The limiting plate stud is provided with a protrusion to reduce the transverse shear stress of the bolt under the earthquake load, and the strength of the connecting piece is improved.

7. The multi-stage lifting device meets the requirement of multi-stage fortification, can meet the working requirement during normal working, and can also meet the energy consumption requirement of limiting displacement through the shear key under a small earthquake and lifting the main beam through the ellipsoidal rotating body under a strong earthquake.

8. The gap between the rubber layer and the limiting ring is used for adapting to temperature deformation and meeting the requirement of normal work.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

FIG. 1 and FIG. 2 are three-dimensional sectional views of three-dimensional gear type self-resetting energy-dissipation seismic isolation support;

FIG. 3 is an exploded view of a three-dimensional gear type self-resetting energy-dissipation shock-isolation support seat plate;

FIG. 4 is an exploded view of a three-dimensional gear type self-resetting energy-dissipation seismic isolation bearing ellipsoid of rotation;

FIG. 5 is a plan view of a three-dimensional gear type self-resetting energy-dissipation seismic isolation bearing;

FIG. 6 is a front view of a three-dimensional gear type self-resetting energy-dissipation seismic isolation bearing;

fig. 7 is a sectional view of a state that a three-dimensional gear type self-resetting energy-consumption vibration-isolating support rotates rightwards.

The rubber sealing device comprises an ellipsoid rotating body 1, an upper support plate 2, a lower support plate 3, a limit stop 4, an upper rubber layer 5, a lower rubber layer 6, a shear key 7, a stud 8, a limit ring 9, a clamping groove 10, a rubber sealing ring 11, a limit groove 12, a gear ring 13, a tooth groove 14, an upper limit plate 15 and a lower limit plate 16.

Detailed Description

The invention will be further described with reference to the following figures and examples:

see fig. 1-7.

The utility model discloses a three-dimensional gear type is from restoring to throne power consumption isolation bearing, include from the top down in proper order go up the spacing board, go up rubber layer, upper bracket board, take tooth ellipsoid rotor, undersetting board, lower rubber layer, lower limiting plate, upper bracket board and undersetting board link to each other through setting up many shear force keys, and the shear force key outside is provided with rubber seal.

Furthermore, the lower part of the upper support is provided with an annular toothed groove concave surface matched with the ellipsoidal gear ring, and the outer ring of the toothed groove is provided with a limit stop block in limit fit with limit grooves on two sides of the gear ring.

The utility model discloses a use principle brief follows as follows:

under normal application, the supporting action of the ellipsoid rotating body resists vertical deformation and the restraining force of the shear key resists transverse deformation, and a gap between the rubber layer and the limiting ring is used for adapting to temperature strain, so that the whole device is kept stable.

Under the condition of small earthquake, the rotator slightly shakes, the shear keys on the two sides limit the displacement, and the ellipsoidal rotator and the upper and lower support plates have the meshing support function, so that the whole device is kept stable.

Under the condition of heavy earthquakes, the shear keys on the two sides are destroyed, the ellipsoids with teeth displace under the action of the acting force through the meshing action of the gears, the upper beam is lifted, and the energy consumption of the support is realized by converting kinetic energy into gravitational potential energy. Then, due to the action of gravity, the ellipsoid with teeth automatically returns through gear engagement, and the whole self-resetting energy consumption process is completed.

After the earthquake, the shear key is replaced to recover the use.

For the purpose of further explanation,

as shown in FIG. 6, the system remains substantially stable under normal operation of the structure, as well as under small earthquakes.

As shown in fig. 5 to 7, when the structure is subjected to a strong shock, the rotating body swings relative to the lower support and the upper support under the action of force, at the moment, the action force is large, the shear bond is broken, and the rotating body rotates through gear engagement to lift the upper support. The outer ring is provided with a limit stop, and when the outer ring rotates to a certain degree, the stop plays a limiting role and is forced to stop rotating. After the earthquake, the rotor automatically restores to the initial state under the action of gravity.

After the earthquake, the use can be quickly recovered only by replacing the shear key.

The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a three-dimensional gear type is from restoring to throne power consumption isolation bearing which characterized in that: comprises an upper limiting plate (15), an upper rubber layer (5), an upper support plate (2), a toothed ellipsoid rotating body (1), a lower support plate (3), a lower rubber layer (6) and a lower limiting plate (16) from top to bottom in sequence;

the upper support plate (2) and the lower support plate (3) are provided with a plurality of shear keys (7) which are connected, and rubber sealing rings (11) are arranged on the outer sides of the shear keys (7); the upper limiting plate (15) is connected with the main beam through a stud (8), and the lower limiting plate is connected with the cover beam through the stud (8).

2. The three-dimensional gear type self-resetting energy-dissipating seismic isolation bearing according to claim 1, characterized in that: the lower support plate (3) is provided with an annular toothed groove (14) spherical surface which is matched with the ellipsoidal gear ring (13), and the outer ring of the toothed groove is provided with a limit stop (4) which is in limit fit with limit grooves (12) on two sides of the gear ring.

3. The three-dimensional gear type self-resetting energy-dissipating seismic isolation bearing according to claim 1, characterized in that: the upper support plate (2) is provided with an annular toothed groove (14) spherical surface which is matched with the ellipsoid gear ring (13), and the outer ring of the toothed groove is provided with a limit stop (4) which is in limit fit with limit grooves (12) on two sides of the gear ring.

4. The three-dimensional gear type self-resetting energy-dissipating seismic isolation bearing according to claim 1, characterized in that: a rubber layer is laid between the upper supporting plate (2) and the upper limiting plate (15), and the upper rubber layer (5) is connected with the upper supporting plate and the upper limiting plate through small clamping grooves.

5. The three-dimensional gear type self-resetting energy-dissipating seismic isolation bearing according to claim 1, characterized in that: a rubber layer is laid between the lower support plate (3) and the lower limiting plate (16), and the lower rubber layer (6) is connected with the lower support plate and the lower limiting plate through small clamping grooves.

6. The three-dimensional gear type self-resetting energy-dissipating seismic isolation bearing according to claim 1, characterized in that: the length of the limiting ring (9) is larger than the thickness of the rubber layer, and a certain gap is reserved between the limiting ring and the rubber layer.