滑移摩擦三维隔振支座
By designing a sliding friction three-dimensional vibration isolation bearing, combined with elastic damping components and a rubber vibration isolation layer, dual vibration isolation in both vertical and horizontal directions is achieved. This solves the problem of rubber bearings being easily damaged under large amplitudes, and improves seismic performance and vibration isolation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG TIEDAO UNIV
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing rubber bearings are easily damaged under large horizontal amplitude vibrations, losing their vibration isolation capacity and failing to effectively cope with the multi-directional loads of subway vibrations and earthquakes, thus affecting the seismic performance of the superstructure and the living environment.
A sliding friction three-dimensional vibration isolation bearing is designed. Through the sliding fit between the first and second connecting plates and the energy storage and release mechanism of the elastic damping component, combined with the rubber vibration isolation layer and the sliding component, dual vibration isolation in the vertical and horizontal directions is achieved, avoiding damage to the rubber bearing caused by large amplitude shear deformation.
It significantly improves the durability and vibration isolation stability of the bearings, making them suitable for multi-directional load scenarios such as subway vibration and earthquakes. It enhances the seismic performance of the superstructure and reduces the interference of subway operation on the building.
Smart Images
Figure CN224514417U_ABST
Abstract
Claims
1. A sliding friction three-dimensional vibration isolation mount, characterized by, include: First connecting plate (1); The second connecting plate (2) is arranged vertically and vertically at intervals from the first connecting plate (1), and the first connecting plate (1) can slide vertically relative to the second connecting plate (2), while the second connecting plate (2) is fixed to the foundation; The elastic damping component (3) is disposed between the first connecting plate (1) and the second connecting plate (2). When the first connecting plate (1) slides relative to the second connecting plate (2) under the action of external force, the elastic damping component (3) can deform and store energy. When the external force is removed, the elastic damping component (3) releases energy and drives the relative reset of the first connecting plate (1) and the second connecting plate (2). The first mounting plate (4) is used to connect to the building to be isolated from vibration. The second mounting plate (5) is arranged at a distance from the first mounting plate (4), and the first mounting plate (4) and the second mounting plate (5) can slide relative to each other; A sliding assembly (6) is disposed between the first mounting plate (4) and the second mounting plate (5) so that the first mounting plate (4) and the second mounting plate (5) can slide relative to each other.
2. The sliding frictional three-dimensional vibration isolator according to claim 1, wherein The sliding component (6) includes: A rubber vibration isolation layer (601) is fixed at its top to the first mounting plate (4). The rubber vibration isolation layer (601) includes multiple layers of rubber sheets (603), steel plates (604), and a protective cover (605). The rubber sheets (603) and the steel plates (604) are arranged alternately, and adjacent rubber sheets (603) and steel plates (604) are vulcanized together. The protective cover (605) covers the outside of the rubber sheets (603) and the steel plates (604). A sliding plate (608) is smoothly arranged on the top and is fixedly mounted on the top surface of the second mounting plate (5). A sliding layer (602) is disposed at the bottom end of the rubber vibration isolation layer (601). The sliding layer (602) abuts against the top surface of the sliding plate so that the rubber vibration isolation layer can slide relative to the sliding plate (608) under the action of external force.
3. The sliding frictional three-dimensional vibration isolator according to claim 1, wherein The sliding component (6) includes: A sliding groove (606) is formed at the bottom of the first mounting plate (4) and the top of the second mounting plate (5); A slider (607) is disposed between the first mounting plate (4) and the second mounting plate (5); Two sliding layers (602) are respectively disposed at the top and bottom of the slider (607), and the sliding layers (602) abut against the bottom of the sliding groove (606).
4. The sliding friction three-dimensional vibration isolation support as described in claim 3, characterized in that: The bottom of the sliding groove (606) is arc-shaped, and the lowest point of the arc is located at the center of the bottom of the sliding groove (606). The top and bottom of the slider (607) are arc-shaped to match the bottom of the sliding groove (606).
5. The sliding friction three-dimensional vibration isolation bearing as described in any one of claims 2-3, characterized in that: The slip layer (602) is made of a slip material, including either polytetrafluoroethylene or modified ultra-high molecular weight polyethylene.
6. The sliding friction three-dimensional vibration isolation bearing as described in any one of claims 1-4, characterized in that: The elastic damping component (3) includes multiple leaf springs (301). The leaf springs (301) are evenly arranged along the width direction of the second connecting plate (2). The leaf springs (301) are arched and inverted on the second connecting plate (2). A first connecting hole is provided through the leaf springs (301). The first connecting plate (1) is provided with multiple second connecting holes. The first connecting hole and the second connecting hole correspond one-to-one. A first bolt (302) is screwed into the corresponding first connecting hole and second connecting hole so that the leaf springs (301) are fixed on the first connecting plate (1).
7. The sliding friction three-dimensional vibration isolation support as described in claim 6, characterized in that: The top of the second connecting plate (2) is provided with multiple sets of lifting blocks (201). The leaf spring (301) corresponds one-to-one with each set of lifting blocks (201). Each set of lifting blocks (201) includes two. The top of the lifting block (201) is higher than the top surface of the second connecting plate (2). The two ends of the leaf spring (301) overlap the lifting block (201) of the corresponding set.
8. The sliding friction three-dimensional vibration isolation support as described in claim 7, characterized in that: A guide assembly (202) is provided between the first connecting plate (1) and the second connecting plate (2), and the guide assembly (202) is used to guide the relative sliding of the first connecting plate (1) and the second connecting plate (2).
9. The sliding frictional three-dimensional vibration isolator of claim 8, wherein The guide assembly (202) is provided in four groups, with each group of guide assemblies (202) respectively located on the front, rear, left, and right sides of the elastic damping assembly (3). The guide assembly (202) includes: The first guide block (203) is L-shaped. The top two sides of the first guide block (203) are provided with first fixing plates (205). The first fixing plates (205) are screwed and fixed to the first connecting plate (1) by second bolts (206). The horizontal part of the first guide block (203) is located at the bottom end of the vertical part of the first guide block (203). The second guide block (204) is L-shaped. The bottom end of the second guide block (204) is provided with a second fixing plate on both sides. The second fixing plate is screwed to the second connecting plate (2) by a third bolt (207). The horizontal part of the second guide block (204) is located at the top of the vertical part of the second guide block (204). The second guide block (204) is located outside the first guide block (203), and the horizontally arranged portions of the first guide block (203) and the second guide block (204) are arranged at intervals along the vertical direction. The top end of the horizontally arranged portion of the first guide block (203) abuts against the inner surface of the vertically arranged portion of the second guide block (204); the top end of the horizontally arranged portion of the second guide block (204) abuts against the outer surface of the vertically arranged portion of the first guide block (203).