Anti-separation friction pendulum isolation bearing with corner elimination function

Abstract

The application provides a separation-preventing friction pendulum seismic isolation bearing with corner elimination function. The application is suitable for the seismic isolation design of high-rise buildings, large-span space structures and special fortification buildings, and can realize the functions of seismic isolation, separation prevention and corner correction simultaneously under the action of earthquake. In order to solve the above technical problems, the technical scheme of the application is as follows: the application comprises an upper seat plate assembly, an intermediate spherical cap body assembly and a lower seat plate assembly, the upper seat plate assembly comprises an upper seat plate, the lower seat plate assembly comprises a lower seat plate, the intermediate spherical cap body assembly comprises an upper spherical cap lining plate, a rotating spherical surface plate and a lower sliding block, elastic pieces and circumferential rotating limiting pieces are arranged between the upper spherical cap lining plate and the rotating spherical surface plate, the upper spherical cap lining plate is in contact with and slidably arranged on the surface of the upper seat plate, and the circumferential rotating limiting pieces are used for limiting the circumferential rotation between the upper spherical cap lining plate and the rotating spherical surface plate; a spherical convex surface is arranged on the rotating spherical surface plate, and a spherical concave surface is arranged on the lower sliding block; and the side of the lower seat plate is in contact with and slidably arranged on the surface of the lower seat plate.

Description

Technical Field

[0001] This invention relates to seismic isolation bearings, and more particularly, to a seismic isolation bearing with anti-separation friction pendulum function that eliminates rotation. Background Technology

[0002] Friction pendulum seismic isolation bearings have been widely adopted and applied in various building seismic isolation projects due to their significant advantages such as stable isolation period, automatic post-earthquake recovery, and outstanding reliability. However, current technology for this type of bearing still faces two major bottlenecks: Firstly, under the influence of rare or even extremely rare earthquakes, building structures will generate a large overturning moment. This moment can easily cause the supports to bear tensile forces, which in turn can cause the spherical crown to deviate from its normal working position. This can not only cause the supports to completely lose their seismic isolation function, but in severe cases, it can also cause structural damage to the supports themselves, posing a major threat to building safety. Secondly, during an earthquake, building structures often experience unexpected angular displacements. The continuous accumulation of these angular displacements can lead to stress concentration in localized areas of the supports, which can shorten the service life of the supports and adversely affect the overall post-earthquake recovery accuracy of the structure, making it difficult to guarantee the safety of the building structure in subsequent use.

[0003] To address the aforementioned issues, some solutions have been proposed in existing technologies: while tensile friction pendulum bearings can address tensile problems to some extent, they suffer from complex structural design and high manufacturing costs, hindering large-scale application; while ordinary anti-separation bearings can only specifically address the separation of the spherical crown caused by tensile forces, failing to effectively address damage to the internal elastomers of the bearing and a series of adverse effects caused by structural rotational displacement, making it difficult to achieve comprehensive protection.

[0004] Furthermore, the national standard GB / T 51408-2021, "Standard for Seismic Isolation Design of Buildings," clearly stipulates that friction pendulum seismic isolation bearings must remain under compression throughout operation, and the building structure must also possess good recovery performance after an earthquake. Currently available friction pendulum seismic isolation bearing products cannot simultaneously meet these two core standard requirements, thus limiting their further application and development in large and complex building structures. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a seismic isolation bearing with anti-separation friction pendulum function that eliminates rotation angle. It is suitable for seismic isolation design of high-rise buildings, large-span spatial structures and special fortification buildings, and can simultaneously achieve seismic isolation, anti-separation and rotation angle correction functions under seismic action.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A shock-absorbing friction pendulum bearing with corner-eliminating function includes an upper bearing plate assembly, an intermediate spherical crown assembly, and a lower bearing plate assembly arranged sequentially from top to bottom. The upper bearing plate assembly includes an upper bearing plate, and the lower bearing plate assembly includes a lower bearing plate. The intermediate spherical crown assembly includes an upper spherical crown liner, a rotating spherical panel, and a lower slider arranged sequentially from top to bottom. An elastic element and a circumferential rotation limiting element are installed between the upper spherical crown liner and the rotating spherical panel. The side of the upper spherical crown liner facing away from the rotating spherical panel contacts and slides on the surface of the upper seat plate. The elastic force of the elastic element drives the upper spherical crown liner to always be in contact with the surface of the upper seat plate. The circumferential rotation limiting element is used to restrict the circumferential rotation between the upper spherical crown liner and the rotating spherical panel. The rotating spherical panel has a spherical convex surface on the side wall opposite to the upper spherical crown liner, and the lower slider has a spherical concave surface that fits into the spherical convex surface. The lower seat plate is in contact with and slidably disposed on the side of the lower seat plate away from the rotating ball panel.

[0007] Through the above technical solution, a relatively complete seismic isolation force system is achieved by layering the upper bearing plate assembly, the intermediate spherical crown assembly, and the lower bearing plate assembly. The elastic element between the upper spherical crown liner and the rotating spherical panel provides continuous axial elastic force to the upper spherical crown liner, keeping them in close contact with the upper bearing plate surface. This can, to some extent, prevent component separation under tension during an earthquake's overturning moment, ensuring stable operation of the seismic isolation function. The circumferential rotation limiting element restricts the relative circumferential rotation of the upper spherical crown liner and the rotating spherical panel, reducing uneven stress caused by circumferential misalignment. The spherical convex surface of the rotating spherical panel and the spherical concave surface of the lower slider cooperate to form an adaptive spherical hinge structure, which can adapt to the angular displacement generated by the building structure, reducing stress concentration caused by angular displacement. Simultaneously, in conjunction with the sliding structures of each component, it achieves the basic seismic isolation and energy dissipation effect.

[0008] Preferably, the upper seat plate is provided with a mirror-finish stainless steel plate, and the mirror-finish stainless steel plate is in sliding contact with the side wall of the upper spherical crown liner that is away from the rotating spherical panel.

[0009] The above technical solution optimizes the smoothness of the contact surface by allowing the mirror stainless steel plate to directly contact and slide with the upper crown liner, reducing frictional loss during the reciprocating sliding process of the component. At the same time, the mirror stainless steel plate has good wear resistance, which can meet the working requirements of long-term reciprocating sliding of the support and helps to ensure the stability of the sliding process.

[0010] Preferably, the upper spherical crown liner plate has an upper sliding friction layer on its side wall away from the rotating spherical panel, and the upper sliding friction layer is in contact with the upper mirror stainless steel plate.

[0011] The above technical solution, through the contact between the friction layer and the upper mirror stainless steel plate, can stabilize the friction coefficient of the contact surface, enabling the support to achieve a more stable energy dissipation effect during sliding. At the same time, the friction layer can protect the metal contact surface, reduce component wear caused by hard friction, and help extend the service life of the support.

[0012] Preferably, the spherical concave surface is provided with a rotating friction layer, which is in contact with the spherical convex surface.

[0013] By using the above technical solution, the friction layer can be in close contact with the spherical convex surface of the rotating ball panel, which can optimize the smoothness of the ball joint structure's rotation process, making the rotation action more stable. At the same time, a certain energy dissipation effect can be achieved through friction, and direct contact between the spherical convex surface and the spherical concave surface can be avoided, reducing wear and scratches on the spherical surface and ensuring the long-term stability of the ball joint's rotation function.

[0014] Preferably, the lower slider has a lower sliding surface friction layer on the side wall away from the rotating ball panel, and the lower sliding surface friction layer is in contact with the upper plate surface of the lower seat plate.

[0015] The above technical solution, through direct contact between the friction layer and the lower base plate, can stabilize the friction coefficient during the sliding process between the lower slider and the lower base plate. Combined with the overall structure, it can achieve stable vibration isolation and energy dissipation. At the same time, it can reduce the friction loss of the contact surface, reduce the wear of components caused by reciprocating sliding, and maintain the performance stability of the support during long-term operation.

[0016] Preferably, the lower base plate is provided with a lower mirror-finish stainless steel plate, which is in contact with the friction layer of the lower sliding surface.

[0017] Through the above technical solution, a lower mirror stainless steel plate is added to the lower base plate. By cooperating with the friction layer of the lower sliding surface, the smoothness of the sliding surface between the lower slider and the lower base plate can be further improved, reducing jamming and wear during the friction process. At the same time, the mirror stainless steel plate has good wear resistance, which can be adapted to the working conditions of large displacement reciprocating sliding of the support, helping to maintain the fitting accuracy of the sliding surface and ensuring the stability of the support sliding process.

[0018] Preferably, the elastic element includes a friction ring spring assembly.

[0019] Through the above technical solutions, the friction ring spring assembly can provide more stable axial elastic force for the upper spherical crown liner under different working conditions, ensuring the stable performance of the support's anti-separation function; at the same time, the friction ring spring assembly is lightweight and compact, and can be customized according to the support structure requirements. It is also relatively convenient to install and maintain, and is compatible with the overall structural layout of the support.

[0020] Preferably, the upper spherical crown liner is provided with an upper mounting groove, and the rotating ball panel is provided with a lower mounting groove. The upper mounting groove and the lower mounting groove are joined together to form an installation space for installing the elastic element. The two ends of the elastic element extend into the upper mounting groove and the lower mounting groove, respectively.

[0021] Through the above technical solution, interlocking mounting grooves are respectively set on the upper spherical crown liner and the rotating spherical panel, providing a dedicated installation space for the elastic component. This can form a stable circumferential and axial limit on the elastic component, preventing the elastic component from shifting or falling off during the reciprocating operation of the support, and ensuring the stability of the elastic force output. At the same time, the interlocking groove design also facilitates the disassembly and replacement of the elastic component, reducing the assembly difficulty of the support and the later maintenance cost.

[0022] Preferably, the circumferential rotation limiting component includes an anti-separation limiting connecting plate and a bolt. One end of the anti-separation limiting connecting plate is fixed to the rotating ball panel, and the other end of the anti-separation limiting connecting plate extends to the upper spherical crown liner and is provided with an elongated hole. The bolt passes through the elongated hole and is threaded onto the rotating ball panel.

[0023] Through the above technical solution, the cooperation between the anti-separation limiting connecting plate and the bolts can effectively limit the circumferential relative rotation between the upper spherical crown liner and the rotating spherical panel, avoiding the problem of uneven force and performance degradation of the support caused by circumferential misalignment; at the same time, the elongated hole design on the connecting plate can accommodate the axial relative displacement between the upper spherical crown liner and the rotating spherical panel, which not only does not affect the elastic force output of the elastic element, but also forms a limiting constraint on the axial separation displacement of the two, further enhancing the anti-separation effect of the support.

[0024] Preferably, there are two or more circumferential rotation limiting members, and all circumferential rotation limiting members are evenly distributed around the perimeter of the rotating ball panel.

[0025] With the above technical solution, two or more circumferential rotation limiting components are evenly distributed around the rotating ball panel, which can make the constraint force of circumferential rotation more uniform and improve the stability of circumferential limiting. At the same time, the evenly distributed limiting structure can also make the limiting effect of anti-separation evenly transmitted in the circumferential direction, which helps to further improve the reliability of the support operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a side view structural diagram of an embodiment; Figure 3 This is a cross-sectional structural diagram of an embodiment; Figure 4 for Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the structure of the intermediate spherical crown component.

[0027] Reference numerals: 1. Upper seat plate assembly; 2. Upper seat plate; 3. Intermediate spherical crown assembly; 4. Upper spherical crown liner; 5. Rotating spherical panel; 6. Lower slider; 7. Elastic element; 8. Friction ring spring assembly; 9. Circumferential rotation limit element; 91. Anti-separation limit connecting plate; 92. Bolt; 93. Long waist-shaped hole; 10. Lower seat plate assembly; 11. Lower seat plate; 12. Spherical convex surface; 13. Spherical concave surface; 14. Upper mirror-finish stainless steel plate; 15. Upper sliding surface friction layer; 16. Rotating surface friction layer; 17. Lower sliding surface friction layer; 18. Lower mirror-finish stainless steel plate; 19. Upper mounting groove; 20. Lower mounting groove. Detailed Implementation

[0028] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered.

[0029] The following descriptions of directions are all based on the attached figures. Figure 2 Appendix Figure 3 The diagram shows the orientation.

[0030] A friction-isolating bearing with corner-eliminating function includes an upper bearing plate assembly 1, a middle spherical crown assembly 3, and a lower bearing plate assembly 10 arranged sequentially from top to bottom. During actual installation, the upper bearing plate 2 is connected to the corresponding building's seismic isolation component, while the lower bearing plate assembly 10 is connected to a fixed surface. The middle spherical crown assembly 3 provides the primary seismic isolation effect.

[0031] The upper seat plate assembly 1 includes an upper seat plate 2, and an upper mirror stainless steel plate 14 is provided on the lower surface of the upper seat plate 2. The upper mirror stainless steel plate 14 is spherical and concave upward.

[0032] The lower seat plate assembly 10 includes a lower seat plate 11, and a lower mirror stainless steel plate 18 is provided on the upper plate surface of the lower seat plate 11. The lower mirror stainless steel plate 18 is spherical and concave downward.

[0033] Both the upper seat plate 2 and the lower seat plate 11 mentioned above are made of carbon steel plate.

[0034] The intermediate spherical crown assembly 3 includes, from top to bottom, an upper spherical crown liner 4, a rotating spherical panel 5, and a lower slider 6. The upper surface of the upper spherical crown liner 4 is also spherical, and an upper sliding friction layer 15 is installed on its upper surface. This upper sliding friction layer 15 can be made of materials such as polytetrafluoroethylene (PTFE). The entire upper sliding friction layer 15 is also spherical, maintaining a uniform arc surface with the upper mirror-finished stainless steel plate 14. The upper sliding friction layer 15 and the upper mirror-finished stainless steel plate 14 are in contact and can rotate and slide relative to each other.

[0035] An elastic element 7 and a circumferential rotation limiting element 9 are installed between the upper spherical crown liner 4 and the rotating spherical panel 5. The upper spherical crown liner 4 has an upper mounting groove 19, and the rotating spherical panel 5 has a lower mounting groove 20. The upper mounting groove 19 and the lower mounting groove 20 are fitted together to form an installation space for the elastic element 7. The two ends of the elastic element 7 extend into the upper mounting groove 19 and the lower mounting groove 20, respectively. The elastic element 7 includes a friction ring spring assembly 8. In this embodiment, three elastic elements 7 are shown. In practice, nine elastic elements 7 can be used, and the optimal arrangement of the nine elastic elements 7 is a matrix.

[0036] The upper crown liner 4 is in contact with and slidably disposed on the surface of the upper seat plate 2 away from the side of the rotating ball panel 5. The elastic force of the elastic member 7 drives the upper crown liner 4 to always fit against the surface of the upper seat plate 2.

[0037] The circumferential rotation limiting component 9 is mainly used to restrict the circumferential rotation between the upper spherical crown liner 4 and the rotating spherical panel 5. There are two or more circumferential rotation limiting components 9; in this embodiment, four are shown, evenly distributed around the rotating spherical panel 5. Specifically, the circumferential rotation limiting component 9 includes an anti-separation limiting connecting plate 91 and a bolt 92. One end of the anti-separation limiting connecting plate 91 is fixed to the rotating spherical panel 5, and the other end extends to the upper spherical crown liner 4 and has an elongated hole 93. The bolt 92 passes through the elongated hole 93 and is threaded onto the rotating spherical panel 5. The upper spherical crown liner 4 and the rotating spherical panel 5 cannot rotate relative to each other circumferentially, but they can separate vertically. Due to the limit displacement limitation of the bolt 92 and the elongated hole 93, the vertical separation distance between the upper spherical crown liner 4 and the rotating spherical panel 5 is constrained.

[0038] A spherical convex surface 12 is provided on the side wall of the rotating spherical panel 5 away from the upper spherical crown liner 4, and a spherical concave surface 13 is provided on the lower slider 6 to fit against the spherical convex surface 12. A rotating surface friction layer 16 is provided inside the spherical concave surface 13. The rotating surface friction layer 16 can also be made of polytetrafluoroethylene, and the rotating surface friction layer 16 is in contact with the spherical convex surface 12.

[0039] A lower sliding friction layer 17 is provided on the side wall of the lower slider 6 away from the rotating ball panel 5. The material of the lower sliding friction layer 17 can also be polytetrafluoroethylene. The lower sliding friction layer 17 is in contact with the upper plate surface of the lower seat plate 11.

[0040] The lower base plate 11 is in contact with and slidably disposed on the side away from the rotating ball panel 5. The lower base plate 11 is provided with a lower mirror stainless steel plate 18, which is also spherical and convex downward. The lower mirror stainless steel plate 18 is in contact with the lower sliding friction layer 17.

[0041] The four components mentioned above—the upper mirror-finish stainless steel plate 14, the upper sliding friction layer 15, the lower mirror-finish stainless steel plate 18, and the lower sliding friction layer 17—have the same spherical curvature, despite their different installation orientations.

[0042] The seismic isolation bearings described above have the following advantages: (1) Innovative integration of anti-separation and corner elimination functions. The pre-compression elastic element 7 provides continuous axial pressure to ensure that the support remains under compression when tension is generated by an extremely rare earthquake. At the same time, the corner elimination mechanism automatically corrects the structural corner displacement through the synergistic effect of the radial elastic element 7 and the ball joint mechanism, avoiding stress concentration caused by corner accumulation, thus providing double protection for the seismic isolation performance of the support. (2) The internal anti-separation elastomer uses a friction ring assembly 8. The friction ring assembly 8 has the following characteristics: it is lightweight, small in size, customizable in design, and easy to install and maintain. (3) The middle spherical crown assembly 3 is equipped with a spherical hinge rotation mechanism, which allows for flexible and free rotation. The rotation torque is small and independent of the rotation angle, depending only on the spherical radius and the coefficient of friction, thus meeting the requirements of large rotation angles.

[0043] The specific usage method of the seismic isolation bearings for the above-mentioned structures is as follows: S1: Arrange the upper spherical crown liner 4, the rotating spherical panel 5, and the lower slider 6 in order from top to bottom. Install the elastic element 7 and the circumferential rotation limiting element 9 between the upper spherical crown liner 4 and the rotating spherical panel 5. The circumferential rotation limiting element 9 restricts the relative circumferential rotation between the upper spherical crown liner 4 and the rotating spherical panel 5, while retaining the axial relative displacement freedom of the two. Make the spherical convex surface 12 of the rotating spherical panel 5 and the spherical concave surface 13 of the lower slider 6 fully fit and align them to complete the pre-assembly of the intermediate spherical crown assembly 3. S2: Assemble the pre-assembled intermediate spherical crown assembly 3 between the upper seat plate 2 and the lower seat plate 11, so that the side of the upper spherical crown liner 4 facing away from the rotating spherical panel 5 contacts and adheres to the surface of the upper seat plate 2, and the side of the lower slider 6 facing away from the rotating spherical panel 5 contacts and adheres to the surface of the lower seat plate 11, thus completing the main assembly of the support; fix the upper seat plate 2 to the upper part of the building to be isolated, and fix the lower seat plate 11 to the lower foundation of the building, thus completing the positioning of the support; S3: The elastic force continuously output by the elastic element 7 drives the upper spherical crown liner 4 to always be in contact with the upper seat plate 2, offsetting the small overturning moment and unexpected rotation angle generated by the upper structure, and avoiding the occurrence of voids and stress concentration inside the support; when the upper structure generates continuous angular displacement, the spherical convex surface 12 of the rotating spherical panel 5 is rotated along the spherical concave surface 13 of the lower slider 6 to correct the angular deviation and maintain the uniform force on the support; S4: When encountering an earthquake, the reciprocating sliding between the upper seat plate 2 and the upper spherical crown liner plate 4, and between the lower slider 6 and the lower seat plate 11 dissipates the seismic energy, prolongs the natural vibration period of the structure, and achieves the seismic isolation function; when the earthquake generates an overturning moment that causes the support to tend to be under tension, the elastic element 7 releases its elastic force simultaneously, continuously pushing the upper spherical crown liner plate 4 to press tightly against the surface of the upper seat plate 2, offsetting the tension on the support, maintaining the support under compression, and preventing component separation failure; at the same time, by rotating the spherical plate 5 and the spherical engagement of the lower slider 6, the dynamic angular displacement caused by the earthquake is eliminated in real time, preventing angular accumulation; S5: After the earthquake, the support is automatically reset through the arc-shaped guiding characteristics of the spherical structure. At the same time, the stabilizing elastic force of the elastic element 7 helps to correct the reset deviation and improve the reset accuracy of the support after the earthquake.

[0044] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A shock-absorbing bearing with anti-separation friction pendulum and corner-eliminating function, comprising an upper bearing plate assembly (1), a middle spherical cap assembly (3), and a lower bearing plate assembly (10) arranged sequentially from top to bottom, wherein the upper bearing plate assembly (1) includes an upper bearing plate (2), and the lower bearing plate assembly (10) includes a lower bearing plate (11), characterized in that: The intermediate spherical crown assembly (3) includes an upper spherical crown liner (4), a rotating spherical panel (5), and a lower slider (6) arranged sequentially from top to bottom. An elastic element (7) and a circumferential rotation limiting element (9) are installed between the upper spherical crown liner (4) and the rotating spherical panel (5). The side of the upper spherical crown liner (4) facing away from the rotating spherical panel (5) contacts and slides on the surface of the upper seat plate (2). The elastic force of the elastic element (7) drives the upper spherical crown liner (4) to always fit against the surface of the upper seat plate (2). The circumferential rotation limiting element (9) is used to limit the circumferential rotation between the upper spherical crown liner (4) and the rotating spherical panel (5). The rotating ball panel (5) has a spherical convex surface (12) on its side wall away from the upper spherical crown liner (4), and the lower slider (6) has a spherical concave surface (13) that fits against the spherical convex surface (12). The lower seat plate (11) is in contact with and slidably disposed on the side of the rotating ball panel (5) away from the lower seat plate (11).

2. The anti-separation friction pendulum vibration isolation bearing with corner elimination function according to claim 1, characterized in that: The upper seat plate (2) is provided with an upper mirror stainless steel plate (14), and the upper mirror stainless steel plate (14) slides in contact with the upper spherical crown liner (4) away from the side wall of the rotating spherical panel (5).

3. The anti-separation friction pendulum vibration isolation bearing with corner elimination function according to claim 2, characterized in that: The upper spherical crown liner (4) has an upper sliding surface friction layer (15) on its side wall away from the rotating spherical panel (5), and the upper sliding surface friction layer (15) is in contact with the upper mirror stainless steel plate (14).

4. The anti-separation friction pendulum vibration isolation bearing with corner elimination function according to claim 1, characterized in that: The spherical concave surface (13) is provided with a rotating surface friction layer (16), which is in contact with the spherical convex surface (12).

5. A shock-absorbing bearing with anti-separation friction pendulum and corner-eliminating function according to claim 1, characterized in that: The lower slider (6) has a lower sliding surface friction layer (17) on its side wall away from the rotating ball panel (5), and the lower sliding surface friction layer (17) is in contact with the upper plate surface of the lower seat plate (11).

6. A shock-absorbing bearing with anti-separation friction pendulum and corner-eliminating function according to claim 5, characterized in that: The lower base plate (11) is provided with a lower mirror stainless steel plate (18), which is in contact with the lower sliding surface friction layer (17).

7. A shock-absorbing bearing with anti-separation friction pendulum and corner-eliminating function according to claim 1, characterized in that: The elastic element (7) includes a friction ring spring assembly (8).

8. A shock-absorbing bearing with anti-separation friction pendulum and corner-eliminating function according to claim 7, characterized in that: The upper spherical crown liner (4) is provided with an upper mounting groove (19), and the rotating ball panel (5) is provided with a lower mounting groove (20). The upper mounting groove (19) and the lower mounting groove (20) are joined together to form an installation space for the installation of the elastic element (7). The two ends of the elastic element (7) extend into the upper mounting groove (19) and the lower mounting groove (20) respectively.

9. A shock-absorbing friction pendulum bearing with corner-eliminating function according to any one of claims 1-8, characterized in that: The circumferential rotation limiting component (9) includes an anti-separation limiting connecting plate (91) and a bolt (92). One end of the anti-separation limiting connecting plate (91) is fixed to the rotating ball panel (5), and the other end of the anti-separation limiting connecting plate (91) extends to the upper spherical crown liner (4) and is provided with an elongated hole (93). The bolt (92) passes through the elongated hole (93) and is threaded onto the rotating ball panel (5).

10. A shock-absorbing bearing with anti-separation friction pendulum and corner-eliminating function according to claim 9, characterized in that: There are two or more circumferential rotation limiting members (9), and all circumferential rotation limiting members (9) are evenly distributed around the rotating ball panel (5).

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