Anti-separation friction pendulum bearing

Abstract

The utility model belongs to building isolation technology field, and disclose the anti -separation friction pendulum bearing, including the upper seat board and lower seat board of corresponding setting up from top to bottom, the upper seat board bottom surface and lower seat board top all are provided with sliding surface, be provided with the spherical cap lining board that is matched with sliding surface between the upper seat board and lower seat board, the opposite side of upper seat board and lower seat board all is provided with the self -cleaning assembly that is matched with sliding surface, the edge of upper seat board and lower seat board is connected with the dust cover, install one -way air inlet valve on the dust cover, install air pressure sensor on the inner wall of dust cover, self -cleaning assembly is driven gear ring by motor and drives the scraping strip to slide along the sliding surface, can automatically remove the dust, sand grain and other impurities that adhere, effectively avoid the friction coefficient drift that sliding surface wears unevenly, guarantee the smooth contact of spherical cap lining board and sliding surface, ensure the energy dissipation efficiency stability when isolating.

Description

Technical Field

[0001] This utility model belongs to the field of building seismic isolation technology, specifically an anti-separation friction pendulum support. Background Technology

[0002] In building and bridge engineering, friction pendulum bearings serve as key seismic isolation devices, achieving energy dissipation and repositioning through spherical sliding, effectively improving the seismic performance of structures.

[0003] Chinese Patent Application No. 202420826900.0 discloses a friction pendulum seismic isolation bearing for buildings with anti-detachment features. A spherical crown liner is located between upper and lower bearing plates and is slidably connected to them. The spherical crown liner consists of an upper spherical crown liner and a lower spherical crown liner. The upper spherical crown liner is slidably connected to the upper bearing plate, and the lower spherical crown liner is slidably connected to the lower bearing plate. The upper and lower spherical crown liners are interlocked via a concave-convex structure. An elastic element is provided between the upper and lower spherical crown liners. In the initial state, the elastic element exhibits elastic deformation and abuts against the upper and lower spherical crown liners respectively. When the friction pendulum seismic isolation bearing is under tension, the upper or lower spherical crown liner is lifted up by the elastic deformation of the elastic element, ensuring that the spherical crown liner remains under compression with respect to the upper and lower bearing plates, even under tension. This allows the seismic isolation function to operate normally, thereby ensuring the effective implementation of building seismic isolation measures.

[0004] However, the above-mentioned anti-detachment building friction pendulum seismic isolation bearings have the following problems in actual use: 1. During long-term use, dust, sand, salt spray and other impurities invade the sliding surface, causing the friction coefficient to drift, sliding to jam, and reducing the seismic isolation efficiency. Traditional bearings rely on manual regular maintenance, which is costly and easy to overlook. Especially in complex environments such as cross-sea and mountainous areas, impurities accelerate component wear and shorten the bearing life; 2. Existing dust covers are mostly static seals, lacking real-time monitoring of the air pressure inside the bearing, and cannot predict faults such as sliding surface contamination and seal failure.

[0005] Therefore, an anti-separation friction pendulum support is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides an anti-separation friction pendulum support, which has the advantages of cleaning the sliding surface and avoiding contamination of the sliding surface.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-separation friction pendulum support, comprising an upper seat plate and a lower seat plate arranged correspondingly above and below each other. The bottom surface of the upper seat plate and the top surface of the lower seat plate are both provided with sliding surfaces. A spherical crown liner matching the sliding surfaces is provided between the upper and lower seat plates. A self-cleaning component matching the sliding surfaces is provided on opposite sides of the upper and lower seat plates. A dust cover is connected to the edges of the upper and lower seat plates. A one-way air inlet valve is installed on the dust cover, and a pressure sensor is installed on the inner wall of the dust cover.

[0008] Preferably, both the upper and lower base plates are fixedly connected to circumferentially arranged fixing ears on their outer sides, and fixing holes are provided on the fixing ears.

[0009] Preferably, the spherical crown liner includes an upper liner and a lower liner. The center of the bottom surface of the upper liner and the center of the top surface of the lower liner are both provided with grooves. A spring is provided in the groove. The two ends of the spring are respectively connected to the upper liner and the lower liner. A guide post arranged in a circumferential direction is fixedly connected to the top surface of the lower liner. A guide groove matching the guide post is provided on the bottom surface of the upper liner. The inner wall of the guide groove slides against the guide post.

[0010] Preferably, the self-cleaning component includes a toothed ring disposed on the outer side of the sliding surface, a scraper fixedly connected to the inner wall of the toothed ring, the scraper slidingly conforming to the sliding surface, a gear meshing with the toothed ring, and a small motor connected to the gear via a motor shaft.

[0011] Preferably, the upper seat plate and the lower seat plate are slidably connected to corresponding toothed rings via annular slide rails, and a dust collection groove corresponding to the scraper is provided on the sliding surface of the lower seat plate.

[0012] Preferably, a temporary connecting plate is provided between the upper seat plate and the lower seat plate, and a pad is provided between the temporary connecting plate and the upper seat plate and the lower seat plate. A temporary bolt is provided on the temporary connecting plate, and the temporary bolt passes through the temporary connecting plate and the pad to connect the upper seat plate and the lower seat plate respectively.

[0013] Preferably, the inner wall of the dust cover is connected to the outer wall of the upper seat plate and the outer wall of the lower seat plate by a sealing adhesive.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The self-cleaning component of this utility model uses a motor-driven gear ring to drive the scraper to slide along the sliding surface. The scraper is flexible and can avoid the spherical crown liner. It can automatically remove the attached dust, sand and other impurities. With the help of the dust collection tank, the impurities are collected in a concentrated manner, which can effectively avoid the friction coefficient drift caused by uneven wear of the sliding surface, ensure smooth contact between the spherical crown liner and the sliding surface, and ensure stable energy consumption efficiency during vibration isolation. The automated cleaning reduces the frequency of manual disassembly and maintenance. It is especially suitable for dusty, high-humidity and other scenarios where frequent maintenance is difficult, and reduces the operation and maintenance costs and the risk of bearing performance degradation. 2. This utility model dust cover forms a physical barrier through a sealed design, which can block the intrusion of corrosive media such as salt spray and water vapor. In conjunction with a one-way air inlet valve, dry gas is injected periodically to maintain a slight positive pressure inside, which can actively isolate external pollutants. The air pressure sensor monitors the changes in internal air pressure in real time, and can provide an immediate warning when the pressure difference exceeds the threshold due to seal failure, which facilitates timely investigation of leakage points and prevents the performance degradation of core components such as springs and guide columns of the spherical crown liner due to corrosion. The three work together to achieve dynamic sealing protection, so that the support can maintain long-term stability in complex environments such as sea crossings and mountainous areas, which greatly improves the structural reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the separation structure of this utility model; Figure 3 This is a schematic diagram of the structure of the self-cleaning component of this utility model; Figure 4 This is a schematic diagram of the structure of the dust cover of this utility model; Figure 5 This is a schematic diagram of the structure of the spherical crown liner of this utility model; Figure 6 This is a structural schematic diagram showing the location of the temporary connecting plate in this utility model; Figure 7 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0016] In the diagram: 1. Upper seat plate; 2. Lower seat plate; 3. Sliding surface; 4. Spherical crown liner; 41. Upper liner; 42. Lower liner; 43. Groove; 44. Spring; 45. Guide post; 46. Guide groove; 5. Self-cleaning components; 51. Toothed ring; 52. Scraper; 53. Gear; 54. Small motor; 55. Dust collection tank; 6. Dust cover; 7. One-way air intake valve; 8. Air pressure sensor; 9. Fixing lug; 10. Temporary connection plate; 11. Spacer block; 12. Temporary bolt; 13. Sealing adhesive. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 7 As shown, this utility model provides an anti-separation friction pendulum support, including an upper seat plate 1 and a lower seat plate 2 arranged correspondingly. The bottom surface of the upper seat plate 1 and the top surface of the lower seat plate 2 are both provided with sliding surfaces 3. A spherical crown liner 4 matching the sliding surfaces 3 is provided between the upper seat plate 1 and the lower seat plate 2. A self-cleaning component 5 matching the sliding surfaces 3 is provided on the opposite side of the upper seat plate 1 and the lower seat plate 2. A dust cover 6 is connected to the edge of the upper seat plate 1 and the lower seat plate 2. A one-way air inlet valve 7 is installed on the dust cover 6. A pressure sensor 8 is installed on the inner wall of the dust cover 6. The dust cover 6 forms a physical barrier through a sealed design, which can block the intrusion of corrosive media such as salt spray and water vapor. In conjunction with the one-way air inlet valve 7, dry gas is injected periodically to maintain a slight positive pressure inside, which can actively isolate external pollutants. The air pressure sensor 8 monitors the changes in internal air pressure in real time. When the seal fails and the pressure difference exceeds the threshold, it can provide an immediate warning, which facilitates timely investigation of the leakage point and prevents the performance of core components such as the spring 44 and guide column 45 of the spherical crown liner 4 from deteriorating due to corrosion. The three work together to achieve dynamic sealing protection, so that the support can maintain long-term stability in complex environments such as sea crossings and mountainous areas, which greatly improves the structural reliability.

[0019] Specifically, both the upper seat plate 1 and the lower seat plate 2 are fixedly connected to circumferentially arranged fixing ears 9, and fixing holes are provided on the fixing ears 9.

[0020] Furthermore, the spherical crown liner 4 includes an upper liner 41 and a lower liner 42. The center of the bottom surface of the upper liner 41 and the center of the top surface of the lower liner 42 are both provided with a groove 43. A spring 44 is provided in the groove 43. The two ends of the spring 44 are respectively connected to the upper liner 41 and the lower liner 42. A guide post 45 arranged in a circumferential direction is fixedly connected to the top surface of the lower liner 42. A guide groove 46 matching the guide post 45 is provided on the bottom surface of the upper liner 41. The inner wall of the guide groove 46 slides against the guide post 45.

[0021] Furthermore, the self-cleaning component 5 includes a toothed ring 51 located on the outer side of the sliding surface 3. A scraper 52 is fixedly connected to the inner wall of the toothed ring 51. The scraper 52 slides against the sliding surface 3. A gear 53 is meshed with the toothed ring 51. A small motor 54 is connected to the gear 53 through a motor shaft. The self-cleaning component 5 drives the toothed ring 51 via a motor to move the scraper 52 along the sliding surface 3. The scraper 52 is a flexible scraper that can avoid the spherical crown liner 4, and can automatically remove attached dust, sand and other impurities. Together with the dust collection trough 55, it can collect impurities in a concentrated manner, effectively avoiding the friction coefficient drift caused by uneven wear of the sliding surface 3, ensuring smooth contact between the spherical crown liner 4 and the sliding surface 3, ensuring stable energy consumption efficiency during vibration isolation. Automated cleaning reduces the frequency of manual disassembly and maintenance, and is especially suitable for dusty, high-humidity and other scenarios where frequent maintenance is difficult, reducing maintenance costs and the risk of bearing performance degradation.

[0022] It is worth noting that the upper seat plate 1 and the lower seat plate 2 are both slidably connected to the corresponding toothed rings 51 via annular slide rails, and the sliding surface 3 of the lower seat plate 2 is provided with a dust collection groove 55 corresponding to the scraper 52.

[0023] It is worth noting that a temporary connecting plate 10 is connected between the upper seat plate 1 and the lower seat plate 2. A pad 11 is provided between the temporary connecting plate 10 and the upper seat plate 1 and the lower seat plate 2. A temporary bolt 12 is provided on the temporary connecting plate 10. The temporary bolt 12 passes through the temporary connecting plate 10 and the pad 11 and connects the upper seat plate 1 and the lower seat plate 2 respectively.

[0024] It is worth mentioning that the inner wall of the dust cover 6 is connected to the outer wall of the upper seat plate 1 and the outer wall of the lower seat plate 2 by sealing adhesive 13.

[0025] Among them, the small motor 54 is existing technology and will not be described in detail; at the same time, this utility model also includes a power supply, a controller and a switch, etc., which are not the main technical points of this patent and will not be described in detail.

[0026] Working principle and process: In the initial state, the temporary connecting plate 10 is fixed to the upper seat plate 1 and the lower seat plate 2 by the temporary bolts 12 and the pad 11 to ensure structural stability during the installation stage. The dust cover 6 is connected to the outer walls of the upper seat plate 1 and the lower seat plate 2 by the sealing adhesive 13 to form a closed space. The one-way air inlet valve 7 injects gas periodically. The air pressure sensor 8 monitors the internal air pressure in real time to determine the sealing status. Under non-earthquake conditions, the small motor 54 of the self-cleaning component 5 drives the gear 53 to rotate, which drives the gear ring 51 to move along the annular slide rail. The scraper 52 on the inner wall of the gear ring 51 adheres to the sliding surface 3 to clean impurities. The impurities fall into the dust collection groove 55 on the sliding surface 3 of the lower seat plate 2. When an earthquake occurs, the temporary bolt 12 breaks under horizontal force, the temporary connecting plate 10 is detached, the upper liner 41 and the lower liner 42 of the spherical crown liner 4 slide relative to each other along the sliding surface 3, the guide column 45 slides and guides in the guide groove 46, and the spring 44 buffers the tension and maintains contact through elastic deformation to achieve seismic isolation and energy dissipation.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Anti-separation friction pendulum bearing, comprising upper seat plate (1) and lower seat plate (2) arranged in correspondence, characterized in that: The bottom surface of the upper seat plate (1) and the top surface of the lower seat plate (2) are both provided with sliding surfaces (3). A spherical crown liner (4) matching the sliding surface (3) is provided between the upper seat plate (1) and the lower seat plate (2). A self-cleaning component (5) matching the sliding surface (3) is provided on the opposite side of the upper seat plate (1) and the lower seat plate (2). A dust cover (6) is connected to the edge of the upper seat plate (1) and the lower seat plate (2). A one-way air inlet valve (7) is installed on the dust cover (6). A pressure sensor (8) is installed on the inner wall of the dust cover (6).

2. Anti-separation rocking pendulum support according to claim 1, characterized in that The upper seat plate (1) and the lower seat plate (2) are both fixedly connected to the outer sides of the fixed ears (9) arranged in a circumferential direction, and the fixed ears (9) are provided with fixing holes.

3. The separation-proof rocking pendulum support according to claim 1, characterized in that The spherical crown liner (4) includes an upper liner (41) and a lower liner (42). The center of the bottom surface of the upper liner (41) and the center of the top surface of the lower liner (42) are both provided with grooves (43). A spring (44) is provided in the groove (43). The two ends of the spring (44) are respectively connected to the upper liner (41) and the lower liner (42). A guide post (45) arranged in a circumferential direction is fixedly connected to the top surface of the lower liner (42). A guide groove (46) matching the guide post (45) is provided on the bottom surface of the upper liner (41). The inner wall of the guide groove (46) slides against the guide post (45).

4. The separation-proof rocking pendulum support according to claim 1, characterized in that The self-cleaning component (5) includes a toothed ring (51) located on the outside of the sliding surface (3). A scraper (52) is fixedly connected to the inner wall of the toothed ring (51). The scraper (52) slides against the sliding surface (3). A gear (53) is meshed with the toothed ring (51). A small motor (54) is connected to the gear (53) through a motor shaft.

5. Anti-separation rocking pivot according to claim 4, characterized in that The upper seat plate (1) and the lower seat plate (2) are slidably connected by corresponding toothed rings (51) via annular slide rails. The sliding surface (3) of the lower seat plate (2) is provided with a dust collection groove (55) corresponding to the scraper (52).

6. The separation-proof rocking pendulum support according to claim 1, characterized in that A temporary connecting plate (10) is connected between the upper seat plate (1) and the lower seat plate (2). A pad (11) is provided between the temporary connecting plate (10) and the upper seat plate (1) and the lower seat plate (2). A temporary bolt (12) is provided on the temporary connecting plate (10). The temporary bolt (12) passes through the temporary connecting plate (10) and the pad (11) and connects the upper seat plate (1) and the lower seat plate (2) respectively.

7. The separation-proof rocking pendulum support according to claim 1, characterized in that The inner wall of the dust cover (6) is connected to the outer wall of the upper seat plate (1) and the outer wall of the lower seat plate (2) by a sealing adhesive (13).

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