Friction pendulum anti-lifting device cooperating with self-resetting translation and swing and assembling method

Abstract

The invention discloses a self-resetting translation and swing coordinated friction pendulum anti-lifting device and an assembling method, the device comprises a first translation connecting plate, the bottom of the first translation connecting plate is provided with a second translation connecting plate, the bottom of the second translation connecting plate is provided with a first curved surface connecting plate, and the top of the bottom connecting plate is provided with a fourth curved surface connecting plate; a curved-surface sliding block is arranged between the first curved-surface connecting plate and the fourth curved-surface connecting plate, a second curved-surface connecting plate and a third curved-surface connecting plate are arranged between the first curved-surface connecting plate and the fourth curved-surface connecting plate and the curved-surface sliding block, and a limiting mechanism is arranged between the side walls of the first curved-surface connecting plate and the fourth curved-surface connecting plate. And a plurality of arc-shaped self-resetting devices are arranged between the side wall of the first translation connecting plate and the top of the S-shaped sliding limiting block. Complex displacement after an earthquake is dealt with through a multi-stage sliding mechanism, so that damage is reduced, the anti-seismic performance is improved, vertical separation is prevented through the limiting mechanism, and the arc-shaped self-resetting device achieves automatic resetting, residual displacement reduction, energy absorption and anti-seismic performance improvement under the action of elastic restoring force of the arc-shaped self-resetting device.

Description

Technical Field

[0001] The present invention belongs to the field of anti-seismic technology, and more specifically, relates to a self-resetting translational swing coordinated friction pendulum anti-lifting device and an assembly method. Background Art

[0002] The friction pendulum isolation device, with its unique operating principle, has been widely used in the field of seismic protection for building structures. By sliding and swinging its slider on a curved track, it effectively extends the structure's natural vibration period and reduces the transmission of seismic forces to the superstructure. Furthermore, by leveraging its gravity-resistance mechanism, the device automatically resets the structure after an earthquake, ensuring the safety and integrity of the building during an earthquake. For example, its application in numerous large bridges and super-high-rise buildings has significantly improved the seismic performance of the structures and reduced losses caused by earthquake disasters.

[0003] However, despite the excellent performance of the friction pendulum seismic isolation device in terms of earthquake resistance, it still faces many problems that need to be solved in practical applications. Under extreme loads such as strong earthquakes and strong winds, the vertical force fluctuations generated by the structure may cause the friction pendulum slider to lift, destroying the normal working state of the device, causing the redistribution of internal forces in the structure, reducing the seismic isolation effect, and may even cause partial or overall damage to the structure. At present, most traditional friction pendulum seismic isolation devices lack effective anti-lifting measures and are difficult to cope with such complex stress conditions. In addition, existing friction pendulum seismic isolation devices mainly rely on gravity for reset, but after the earthquake, due to the influence of factors such as residual deformation and friction, the reset effect is often not ideal, and the structure cannot be completely restored to its original state, affecting the subsequent performance and safety of the structure. Summary of the Invention

[0004] In response to the above defects or improvement needs of the prior art, the present invention provides a self-resetting, translational, and swinging coordinated friction pendulum anti-lifting device and an assembly method. Through the sliding of the curved sliding block relative to the second curved connecting plate and the third curved connecting plate, the sliding of the second curved connecting plate relative to the first curved connecting plate, and the sliding of the third curved connecting plate relative to the fourth curved connecting plate, the device can flexibly respond to the complex displacement situations that may occur in the building structure after an earthquake, effectively reduce structural damage and improve seismic resistance. Through a multi-stage sliding mechanism, the device can achieve stable displacement adjustment under the action of external forces of different directions and magnitudes, thereby meeting the displacement requirements of the building structure in different directions after an earthquake, and significantly improving the seismic resistance and adaptability of the overall structure. By setting multiple limiting mechanisms between the side walls of the first curved connecting plate and the fourth curved connecting plate, a stable vertical constraint system is formed to effectively prevent vertical separation. An arc-shaped self-resetting device is installed between the side wall of the first translational connecting plate and the top of the S-shaped sliding limit block. The elastic restoring force of shape memory alloy or high-damping rubber is used to achieve automatic reset of the structure after the action of external force, reduce residual displacement, absorb and consume energy, improve seismic performance, reduce the risk of structural damage under extreme conditions, and reduce repair costs.

[0005] To achieve the above-mentioned objectives, according to one aspect of the present invention, a self-resetting translational swing coordinated friction pendulum anti-lifting device is provided, comprising a first translational connecting plate, a second translational connecting plate being provided at the bottom of the first translational connecting plate, a first curved connecting plate being fixedly mounted at the bottom of the second translational connecting plate, a fourth curved connecting plate being fixedly mounted at the top of the bottom connecting plate, a curved sliding block being provided between the first curved connecting plate and the fourth curved connecting plate, a second curved connecting plate being provided between the first curved connecting plate and the curved sliding block, and a third curved connecting plate being provided between the curved sliding block and the fourth curved connecting plate;

[0006] A limiting mechanism is provided between each side wall of the first curved connecting plate and the fourth curved connecting plate. The limiting mechanism includes a C-shaped sliding limiting block and an S-shaped sliding limiting block. The C-shaped sliding limiting block is fixedly mounted on the side wall of the fourth curved connecting plate, and the S-shaped sliding limiting block is fixedly mounted on the side wall of the first curved connecting plate and is hooked with the C-shaped sliding limiting block, so that the device forms a stable vertical constraint system, effectively preventing vertical separation caused by uneven force.

[0007] A plurality of arc-shaped self-resetting devices are fixedly installed between the side wall of the first translational connecting plate and the top of the S-shaped sliding limit block. After the structure is deformed by external force, the arc-shaped self-resetting device can automatically restore to its original position with the help of its own elastic restoring force, thereby reducing the residual displacement of the structure after deformation and improving the seismic performance of the structure.

[0008] Furthermore, the S-shaped sliding limit block includes a first groove and a second groove, the first groove and the second groove are in opposite directions, the notch of the first groove faces inward, and the notch of the second groove faces outward, the top side wall of the first groove is fixedly connected to the side wall of the first curved connecting plate, and the C-shaped sliding limit block is an inner groove, the notch of the groove faces inward, and the C-shaped sliding limit block is fixedly mounted on the side wall of the fourth curved connecting plate through the bottom side wall of the groove;

[0009] There is a certain gap between the outer wall of the second groove and the outer wall of the first curved connecting plate, there is a certain gap between the top side wall of the C-shaped sliding limit block and the inner side wall of the second groove, and there is a certain gap between the bottom side wall of the second groove and the inner side wall of the inner groove of the C-shaped sliding limit block, so that the device allows a certain sliding displacement in the horizontal direction.

[0010] Furthermore, the lower surface of the first curved connecting plate is a concave spherical surface, the upper surface of the second curved connecting plate is a convex spherical surface matching the concave spherical surface of the lower surface of the first curved connecting plate, and a first sliding curved plate is fixedly installed at the bottom of the first curved connecting plate, and the convex spherical surface of the second curved connecting plate and the first sliding curved plate form a first sliding friction pair.

[0011] Furthermore, the lower surface of the second curved connecting plate is a concave spherical surface, the upper surface of the curved sliding block is a convex spherical surface that matches the concave spherical surface of the lower surface of the second curved connecting plate, and the lower surface of the second curved connecting plate is fixedly connected to the second sliding curved plate. The convex spherical surface on the upper surface of the curved sliding block and the second sliding curved plate form a second sliding friction pair.

[0012] Furthermore, the lower surface of the curved sliding block is a convex spherical surface, the upper surface of the third curved connecting plate is a convex spherical surface that matches the convex spherical surface of the lower surface of the curved sliding block, and the upper surface of the third curved connecting plate is fixedly connected to the third sliding curved plate. The convex spherical surface of the lower surface of the curved sliding block and the third sliding curved plate form a third sliding friction pair.

[0013] Furthermore, the lower surface of the third curved connecting plate is a convex spherical surface, the upper surface of the fourth curved connecting plate is a concave spherical surface that matches the convex spherical surface of the lower surface of the third curved connecting plate, and the upper surface of the fourth curved connecting plate is fixedly connected to the fourth sliding curved plate, and the convex spherical surface of the third curved connecting plate and the fourth sliding curved plate form a third sliding friction pair.

[0014] Furthermore, the first curved connecting plate, the second curved connecting plate, the third curved connecting plate and the fourth curved connecting plate are made of polytetrafluoroethylene and its composite materials, stainless steel plates, chrome plating layers or cemented carbide coatings, ceramic materials or graphite-based materials.

[0015] Furthermore, a plurality of circular grooves are provided at the bottom of the first translational connecting plate, and a plurality of circular grooves are provided on the top surface of the second translational connecting plate at positions corresponding to the bottom of the first translational connecting plate, and the grooves are filled with lubricating fillers, which include but are not limited to solid lubricants, grease or lubricating oils.

[0016] Furthermore, a plurality of upper lug plates are fixedly connected to the side wall of the first translation connecting plate, and through holes are formed on the upper lug plates;

[0017] A plurality of lower lug plates are fixedly connected to the side walls of the bottom connecting plate, and through holes are formed on the lower lug plates.

[0018] According to a second aspect of the present invention, a method for assembling a self-resetting, translationally and oscillatingly coordinated friction pendulum anti-lifting device is provided, which is implemented using the self-resetting, translationally and oscillatingly coordinated friction pendulum anti-lifting device, comprising:

[0019] S100: Fixing the upper ear plate to the side wall of the first translational connecting plate, fixing the lower ear plate to the side wall of the bottom connecting plate, and fixing the C-shaped sliding limit block to the side wall of the fourth curved connecting plate;

[0020] S200: The bottom connecting plate is fixedly mounted on the bottom of the fourth curved connecting plate to form a stable bottom support structure. The third curved connecting plate, the curved sliding block, the second curved connecting plate, and the first curved connecting plate are then placed in order from bottom to top. The S-shaped sliding limit block is then fixedly mounted on the side wall of the first curved connecting plate and connected to the C-shaped sliding limit block to form a complete limit mechanism, effectively limiting the range of motion of each component and ensuring stable operation of the device.

[0021] S300: Fix the second translational connecting plate on top of the first curved connecting plate, fill the circular groove on top of the first curved connecting plate with a lubricating filler, and then install the first translational connecting plate on top of the second translational connecting plate;

[0022] S400: After the first translation connecting plate is installed, the arc-shaped self-resetting device is fixedly installed on the side wall of the first translation connecting plate and the top of the S-shaped sliding limit block to ensure that its installation position is accurate and firm.

[0023] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0024] 1. The self-resetting, translational, and swinging coordinated friction pendulum anti-lifting device of the present invention, through the sliding of the curved sliding block relative to the second curved connecting plate and the third curved connecting plate, the sliding of the second curved connecting plate relative to the first curved connecting plate, and the sliding of the third curved connecting plate relative to the fourth curved connecting plate, enables the device to flexibly cope with the complex displacement situations that may occur in the building structure after an earthquake, effectively reduce structural damage and improve seismic performance. Through a multi-stage sliding mechanism, the device can achieve stable displacement adjustment under the action of external forces of different directions and magnitudes, thereby meeting the displacement requirements of the building structure in different directions after an earthquake, and significantly improving the seismic resistance and adaptability of the overall structure.

[0025] 2. The self-resetting, translational, and swing-coordinated friction pendulum anti-lifting device of the present invention provides a plurality of limiting mechanisms between the side walls of the first curved connecting plate and the fourth curved connecting plate, so that the device forms a stable vertical constraint system, effectively preventing vertical separation caused by uneven force, enhancing the stability of the device, avoiding potential functional failure risks, ensuring that the device can continue to work stably even under complex and changeable working conditions, and enabling the device to maintain close contact between components under various working conditions, thereby ensuring its functionality and efficiency.

[0026] 3. The self-resetting translational swing coordinated friction pendulum anti-lifting device of the present invention has an arc-shaped self-resetting device fixedly installed between the side wall of the first translational connecting plate and the top of the S-shaped sliding limit block. The material of the arc-shaped self-resetting device is a shape memory alloy material or a high-damping rubber. By utilizing the elastic restoring force of these materials, the arc-shaped self-resetting device can automatically return to its original position after the structure is deformed by an external force, thereby effectively reducing the residual displacement of the structure after deformation. During the deformation process, the arc-shaped self-resetting device can absorb and consume a part of the energy applied by the outside, thereby improving the structure's ability to resist dynamic loads such as earthquakes, enhancing the stability and seismic resistance of the overall structure, reducing the risk of structural damage under extreme conditions, and reducing the workload and cost required to repair the structure after a disaster.

[0027] 4. In the self-resetting, translational, and swinging coordinated friction pendulum anti-lifting device of the present invention, the first, second, third, and fourth sliding curved panels are made of materials with a low friction coefficient, which reduces the frictional resistance during the sliding process, reduces energy loss, improves the movement efficiency and flexibility of the structure, reduces wear caused by friction, effectively extends its service life, and can maintain a stable operating state under complex stress conditions, thereby ensuring the reliability and efficiency of the overall structure.

[0028] 5. The self-resetting, translational and swinging coordinated friction pendulum anti-lifting device of the present invention fills the circular grooves at the bottom and top surfaces of the first translational connecting plate and the second translational connecting plate with lubricating fillers, adjusts the relative friction coefficient and friction force between the first translational connecting plate and the second translational connecting plate, realizes sliding friction energy dissipation and shock absorption, and enables the device to effectively reduce friction resistance and energy loss during the translation process, thereby further improving the anti-seismic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional cross-sectional view of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0030] Figure 2 A top view of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0031] Figure 3 A side view of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the overall structure of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0033] Figure 5 A half-section view of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic structural diagram of a limiting mechanism of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0035] Figure 7 A top view of the second translation connecting plate of a friction pendulum anti-lifting device with self-resetting translational and swinging coordination according to an embodiment of the present invention;

[0036] Figure 8 This is a flow chart of an assembly method of a friction pendulum anti-lifting device with self-resetting translational swing coordination according to an embodiment of the present invention;

[0037] In all the drawings, the same figure marks represent the same technical features, specifically: 1-first translation connecting plate, 2-upper ear plate, 3-arc-shaped self-resetting device, 4-second translation connecting plate, 5-first curved connecting plate, 6-S-type sliding limit block, 61-first groove, 62-second groove, 7-C-type sliding limit block, 8-lower ear plate, 9-first sliding curved panel, 10-second curved connecting plate, 11-second sliding curved panel, 12-curved sliding block, 13-third sliding curved panel, 14-third curved connecting plate, 15-fourth sliding curved panel, 16-fourth curved connecting plate, 17-bottom connecting plate, 18-first limit block, 19-second limit block, 20-third limit block, 21-fourth limit block. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In this patent, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0042] Example 1

[0043] like Figure 1-7 As shown, an embodiment of the present invention provides a self-resetting translational swing coordinated friction pendulum anti-lifting device, comprising a first translational connecting plate 1, a second translational connecting plate 4, a first curved surface connecting plate 5, a second curved surface connecting plate 10, a curved surface sliding block 12, a third curved surface connecting plate 14, a fourth curved surface connecting plate 16 and a bottom connecting plate 17, wherein the first translational connecting plate 1 is provided with a second translational connecting plate 4 at the bottom, the second translational connecting plate 4 is fixedly mounted with a first curved surface connecting plate 5 at the bottom, the fourth curved surface connecting plate 16 is fixedly mounted with a top of the bottom connecting plate 17, a curved surface sliding block 12 is provided between the first curved surface connecting plate 5 and the fourth curved surface connecting plate 16, and a second curved surface connecting plate 5 is provided between the first curved surface connecting plate 5 and the curved surface sliding block 12. The curved connecting plate 10 is provided with a third curved connecting plate 14 between the curved sliding block 12 and the fourth curved connecting plate 16; the first translation connecting plate 1 is connected to the upper structure, and the bottom connecting plate 17 is connected to the foundation or other supporting structure. The curved sliding block 12 can slide relative to the second curved connecting plate 10 and the third curved connecting plate 14, and the second curved connecting plate 10 can slide relative to the first curved connecting plate 5, and the third curved connecting plate 14 can slide relative to the fourth curved connecting plate 16. This multi-stage sliding enables the device to flexibly respond to the complex displacement conditions that may occur in the building structure after an earthquake, effectively reduce structural damage and improve seismic performance, thereby meeting the displacement requirements of the building structure in different directions after an earthquake.

[0044] Furthermore, a plurality of limiting mechanisms are provided between the side walls of the first curved connecting plate 5 and the fourth curved connecting plate 15. The limiting mechanisms form a stable vertical constraint system during the operation of the device, effectively preventing the vertical separation phenomenon caused by uneven force, enhancing the stability of the device, avoiding the potential risk of functional failure, and ensuring that the device can continue to work stably even under complex and changeable working conditions. On the other hand, it ensures that under the action of forces of different directions and magnitudes, the first curved connecting plate 5, the first sliding curved panel 8, the second curved connecting plate 10, the second sliding curved panel 11, the curved sliding block 12, the third sliding curved panel 13, the third curved connecting plate 14, the fourth sliding curved panel 15 and the fourth curved connecting plate 16 can maintain close contact, ensuring that the device can operate normally under various working conditions, thereby ensuring its functionality and efficiency.

[0045] like Figure 1-5 As shown, a plurality of circular grooves are provided at the bottom of the first translation connecting plate 1, and a plurality of circular grooves are provided on the top surface of the second translation connecting plate 4 at positions corresponding to the bottom of the first translation connecting plate 1. The grooves are filled with lubricating fillers, and the lubricating fillers include but are not limited to solid lubricants, greases or lubricating oils to adjust the relative friction coefficient and friction force between the first translation connecting plate 1 and the second translation connecting plate 4. The second translation connecting plate and the first translation connecting plate work together to realize the translation function of the structure and effectively transmit the force in the translation direction. During the translation process, the sliding friction energy dissipation and shock absorption are realized between the mating surfaces of the first translation connecting plate 1 and the second translation connecting plate 4 through the lubricating medium filled in the grooves.

[0046] Furthermore, the lower surface of the first curved connecting plate 5 is a concave spherical surface, and the upper surface of the second curved connecting plate 10 is a convex spherical surface matching the concave spherical surface of the lower surface of the first curved connecting plate 5, and a first sliding curved plate 9 is fixedly installed at the bottom of the first curved connecting plate 5, and the convex spherical surface of the second curved connecting plate 10 and the first sliding curved plate 9 form a first sliding friction pair, and the material for making the first sliding curved plate 9 is polytetrafluoroethylene and its composite materials, stainless steel plates, chrome plating layers or hard alloy coatings, ceramic materials or graphite-based materials; through the matching of the concave and convex spherical surfaces of the first curved connecting plate 5 and the second curved connecting plate 10 and the setting of the first sliding curved plate 9, the relative sliding and swinging mechanism of the structure can be realized when subjected to force, thereby effectively transmitting force and coordinating structural deformation, ensuring the stability and reliability of the overall structure under complex force conditions, and the first sliding curved plate 9 adopts materials with low friction coefficients such as polytetrafluoroethylene and its composite materials, stainless steel plates, chrome plating layers or hard alloy coatings, ceramic materials or graphite-based materials, which significantly reduces the friction resistance during sliding, reduces energy loss, and improves the movement efficiency of the structure.

[0047] Furthermore, the lower surface of the second curved connecting plate 10 is a concave spherical surface, the upper surface of the curved sliding block 12 is a convex spherical surface that matches the concave spherical surface of the lower surface of the second curved connecting plate 10, and the lower surface of the second curved connecting plate 10 is fixedly connected to the second sliding curved plate 11, and the convex spherical surface on the upper surface of the curved sliding block 12 forms a second sliding friction pair with the second sliding curved plate 11. The material of the second sliding curved plate 11 is polytetrafluoroethylene and its composite materials, stainless steel plate, chrome plating or cemented carbide coating, ceramic material or graphite-based material; through the close fit between the concave spherical surface of the second curved connecting plate 10 and the convex spherical surface of the curved sliding block 12, and the setting of the second sliding curved plate 11, when the structure is subjected to force, the second curved connecting plate 10 and the curved sliding block 12 can achieve relative sliding to form a stable swinging mechanism, thereby effectively transmitting force and coordinating structural deformation, ensuring the stability and reliability of the overall structure under complex working conditions. Secondly, the second sliding curved panel 11 is made of materials with low friction coefficients such as polytetrafluoroethylene and its composite materials, stainless steel plates, chrome plating or carbide coatings, ceramic materials or graphite-based materials, which can significantly reduce the friction resistance during sliding, reduce energy loss, and thus improve the movement efficiency of the structure.

[0048] Furthermore, the lower surface of the curved sliding block 12 is a convex spherical surface, the upper surface of the third curved connecting plate 14 is a convex spherical surface that matches the convex spherical surface of the lower surface of the curved sliding block 12, and the upper surface of the third curved connecting plate 14 is fixedly connected to the third sliding curved plate 13. The convex spherical surface of the lower surface of the curved sliding block 12 and the third sliding curved plate 13 form a third sliding friction pair. The material of the third sliding curved plate 13 is polytetrafluoroethylene and its composite materials, stainless steel plate, chrome plating or cemented carbide coating, ceramic material or graphite-based material; through the matching design of the convex spherical surface of the curved sliding block 12 and the concave spherical surface of the third curved connecting plate 14, and the setting of the third sliding curved plate 13, the relative sliding and swinging mechanism of the structure when subjected to force can be realized, thereby optimizing the coordination of force transmission and structural deformation, and ensuring the stability and reliability of the overall structure under complex working conditions. The third sliding curved plate 13 is made of low-friction materials such as polytetrafluoroethylene (PTFE) and its composite materials, stainless steel, chrome plating or carbide coating, ceramics, or graphite-based materials. This significantly reduces frictional resistance during sliding, minimizing energy loss and improving the structure's efficiency. This low-friction design also enhances the structure's flexibility and responsiveness, reduces wear caused by friction, and effectively extends its service life.

[0049] Furthermore, the lower surface of the third curved connecting plate 14 is a convex spherical surface, the upper surface of the fourth curved connecting plate 16 is a convex spherical surface that matches the convex spherical surface of the lower surface of the third curved connecting plate 14, and the upper surface of the fourth curved connecting plate 16 is fixedly connected to the fourth sliding curved plate 16. The convex spherical surface of the third curved connecting plate 14 and the fourth sliding curved plate 16 form a third sliding friction pair. The manufacturing material of the fourth curved connecting plate 16 is polytetrafluoroethylene and its composite material, stainless steel plate, chrome plating or carbide coating, ceramic material or graphite-based material; through the third curved connecting plate 1 The matching design of the convex spherical surface of 4 and the concave spherical surface of the fourth curved connecting plate, as well as the provision of the fourth curved connecting plate 16, can realize a relative sliding and swinging mechanism when subjected to force, thereby optimizing the coordination of force transmission and structural deformation, and significantly improving the stability and reliability of the overall structure under complex working conditions. The fourth curved connecting plate 16 is made of a low-friction coefficient material such as polytetrafluoroethylene and its composite materials, stainless steel plate, chrome plating or carbide coating, ceramic material or graphite-based material, which effectively reduces frictional resistance during sliding, reduces energy loss, improves movement efficiency, and extends service life.

[0050] Furthermore, the concave spherical surface of the first curved connecting plate 5 is larger than the convex spherical surface of the second curved connecting plate 10, the concave spherical surface of the second curved connecting plate 10 is larger than the convex spherical surface of the curved sliding block 12, the concave spherical surface of the third curved connecting plate 14 is larger than the convex spherical surface of the curved sliding block 12, and the concave spherical surface of the fourth curved connecting plate 16 is larger than the convex spherical surface of the third curved connecting plate 14.

[0051] Furthermore, the limiting mechanism includes an S-type sliding limit block 6 and a C-type sliding limit block 7, the S-type sliding limit block 6 includes a first groove 61 and a second groove 62, the directions of the first groove 61 and the second groove 62 are opposite, and the notch of the first groove 61 faces inward, and the notch of the second groove 62 faces outward, and the top side wall of the first groove 61 is fixedly connected to the side wall of the first curved connecting plate 5; the C-type sliding limit block 7 is an inner groove, and the notch of its groove faces inward, and the C-type sliding limit block 7 is fixedly installed on the side wall of the fourth curved connecting plate 16 through the bottom side wall of the groove.

[0052] Furthermore, the limiting mechanism is hooked to the inner groove of the C-shaped sliding limit block 7 through the second groove 62, limiting the vertical displacement of the first curved connecting plate 5 and the fourth curved connecting plate 16, ensuring that under the action of forces of different directions and magnitudes, the first curved connecting plate 5, the first sliding curved panel 8, the second curved connecting plate 10, the second sliding curved panel 11, the curved sliding block 12, the third sliding curved panel 13, the third curved connecting plate 14, the fourth sliding curved panel 15 and the fourth curved connecting plate 16 can maintain close contact, ensuring that the device can operate normally under various working conditions, thereby ensuring its functionality and efficiency.

[0053] Furthermore, there is a certain gap between the outer side wall of the second groove 62 and the outer side wall of the first curved connecting plate 5, and there is a certain gap between the top side wall of the C-shaped sliding limit block 7 and the inner side wall of the second groove 62. There is a certain gap between the bottom side wall of the second groove 62 and the inner side wall of the inner groove of the C-shaped sliding limit block 7, so that the device allows a certain sliding displacement in the horizontal direction. When the structure slides to a predetermined position, the second groove 62 and the inner groove of the C-shaped sliding limit block 7 abut against each other, effectively preventing the structure from continuing to slide, realizing precise limit control, preventing the structure from sliding beyond the design range when subjected to force, protecting the safety of the structure, and to a certain extent playing a role in energy consumption and shock absorption, thereby improving the durability and reliability of the structure.

[0054] Furthermore, an arc-shaped self-resetting device 3 is fixedly installed between the side wall of the first translational connecting plate and the top of the S-shaped sliding limit block. The arc-shaped self-resetting device 3 is made of a shape memory alloy material or high-damping rubber. By utilizing the arc-shaped structure and material properties of the arc-shaped self-resetting device 3 itself, after the structure is deformed by an external force, it can automatically return to its original position with the help of the elastic restoring force of the material itself, thereby effectively reducing the residual displacement of the structure after deformation. The arc-shaped self-resetting device 3 can absorb and consume a portion of the energy applied by the outside during the deformation process, thereby improving the structure's ability to withstand dynamic loads such as earthquakes and enhancing the stability and seismic performance of the overall structure. Through this design, the arc-shaped self-resetting device 3 helps reduce the risk of structural damage under extreme conditions, while also reducing the workload and cost required to repair the structure after a disaster.

[0055] Furthermore, a plurality of upper ear plates 2 are fixedly connected to the side walls of the first translational connecting plate 1. Through holes are provided on the upper ear plates 2 to facilitate fixed connection with other components. When the structure is subjected to external force, the upper ear plates 2 can effectively transfer the force to other components, thereby ensuring the stability of the entire structure and avoiding local stress concentration, thereby enhancing the overall stability of the structure.

[0056] Furthermore, a plurality of lower ear plates 8 are fixedly connected to the side walls of the bottom connecting plate 17. Through holes are provided on the lower ear plates 8 to facilitate fixed connection with other components. When the structure is subjected to external force, the lower ear plates 8 can effectively transfer the force to other components, ensuring the stability of the entire structure and avoiding local stress concentration, thereby enhancing the overall stability of the structure.

[0057] Furthermore, a first limit stop 18 is fixedly installed at the bottom end of the first curved connecting plate 5, a fourth limit stop 21 opposite to the first limit stop 18 is fixedly installed at the top end of the fourth curved connecting plate 16, a second limit stop 19 is fixedly installed at the bottom end of the second curved connecting plate 10, and a third limit stop 20 opposite to the second limit stop 19 is fixedly installed at the top end of the third curved connecting plate 14.

[0058] The friction pendulum anti-lifting device of the present invention has significant seismic resistance and stability. Its multi-stage sliding mechanism can flexibly respond to the complex displacement of building structures after an earthquake, reduce structural damage, meet the displacement requirements of different directions and sizes, and significantly improve seismic resistance and adaptability. The device forms a stable vertical constraint system through a limiting mechanism, effectively preventing vertical separation, enhancing stability, avoiding the risk of functional failure, and ensuring continuous and stable operation under complex working conditions. The arc-shaped self-resetting device uses the elastic restoring force of shape memory alloy materials or high-damping rubber to automatically restore the structure to its original position after being deformed by external forces, reducing residual displacement, absorbing and consuming energy, enhancing seismic resistance, and reducing damage risks and repair costs. The sliding curved panel material with a low friction coefficient reduces sliding friction resistance, reduces energy loss and wear, extends service life, and maintains stable operation. The lubricating filler can adjust the friction coefficient and friction force to achieve sliding friction energy dissipation and shock absorption, further reducing friction resistance and energy loss, and improving seismic resistance.

[0059] Example 2

[0060] Combine Figure 1-7 ,like Figure 8 As shown, the present invention provides an assembly method of a friction pendulum anti-lifting device with self-resetting translational swing coordination, which is implemented by using the self-resetting translational swing coordination friction pendulum anti-lifting device. The specific steps are as follows:

[0061] S100: The upper ear plate 2 is fixedly mounted on the side wall of the first translational connecting plate 1, the lower ear plate 8 is fixedly mounted on the side wall of the bottom connecting plate 17, and the C-shaped sliding limit block 7 is fixedly mounted on the side wall of the fourth curved connecting plate 16;

[0062] S200: The bottom connecting plate 17 is fixedly installed on the bottom of the fourth curved connecting plate 16 to form a stable bottom support structure. The third curved connecting plate 14, the curved sliding block 12, the second curved connecting plate 10 and the first curved connecting plate 5 are then placed in order from bottom to top. The S-shaped sliding limit block is then fixedly installed on the side wall of the first curved connecting plate 5 and connected to the C-shaped sliding limit block 7. Thus, a complete limit mechanism is constructed to effectively limit the motion range of each component and ensure the stable operation of the device.

[0063] S300: The second translation connecting plate 4 is fixedly mounted on the top of the first curved connecting plate 5, and a lubricating filler is filled into the circular groove on the top of the first curved connecting plate 5, and then the first translation connecting plate 1 is mounted on the top of the second translation connecting plate 4;

[0064] S400: After the first translation connecting plate 1 is installed, the arc-shaped self-resetting device 3 is fixedly installed on the side wall of the first translation connecting plate 1 and the top of the S-shaped sliding limit block 6 to ensure that its installation position is accurate and firm.

[0065] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A friction pendulum anti-lifting device with self-resetting translational swing coordination, characterized in that: The invention comprises a first translation connecting plate (1), a second translation connecting plate (4) is provided at the bottom of the first translation connecting plate (1), a first curved connecting plate (5) is fixedly installed at the bottom of the second translation connecting plate (4), a fourth curved connecting plate (16) is fixedly installed at the top of the bottom connecting plate (17), a curved sliding block (12) is provided between the first curved connecting plate (5) and the fourth curved connecting plate (16), a second curved connecting plate (10) is provided between the first curved connecting plate (5) and the curved sliding block (12), and a third curved connecting plate (14) is provided between the curved sliding block (12) and the fourth curved connecting plate (16); A limiting mechanism is provided between each side wall of the first curved connecting plate (5) and the fourth curved connecting plate (16), the limiting mechanism comprising a C-shaped sliding limiting block (7) and an S-shaped sliding limiting block (6), the C-shaped sliding limiting block (7) being fixedly mounted on the side wall of the fourth curved connecting plate (16), the S-shaped sliding limiting block (6) being fixedly mounted on the side wall of the first curved connecting plate (5) and being hooked with the C-shaped sliding limiting block (7), so that the device forms a stable vertical restraint system, effectively preventing vertical separation caused by uneven force; A plurality of arc-shaped self-resetting devices (3) are fixedly installed between the side wall of the first translational connecting plate (1) and the top of the S-shaped sliding limit block (6). After the structure is deformed by an external force, the arc-shaped self-resetting devices (3) can automatically return to their original positions by virtue of their own elastic restoring force, thereby reducing the residual displacement of the structure after deformation and improving the seismic performance of the structure.

2. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: The S-shaped sliding limit block (6) comprises a first groove (61) and a second groove (62), the first groove (61) and the second groove (62) are in opposite directions, the notch of the first groove (61) faces inward, and the notch of the second groove (62) faces outward, the top side wall of the first groove (61) is fixedly connected to the side wall of the first curved surface connection plate (5), and the C-shaped sliding limit block (7) is an inner groove, the notch of the groove faces inward, and the C-shaped sliding limit block (7) is fixedly mounted on the side wall of the fourth curved surface connection plate (16) through the bottom side wall of the groove; A certain gap is left between the outer side wall of the second groove (62) and the outer side wall of the first curved connecting plate (5), a certain gap is left between the top side wall of the C-shaped sliding limit block (7) and the inner side wall of the second groove (62), and a certain gap is left between the bottom side wall of the second groove (62) and the inner side wall of the inner groove of the C-shaped sliding limit block (7), so that the device allows a certain sliding displacement in the horizontal direction.

3. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: The lower surface of the first curved surface connecting plate (5) is a concave spherical surface, the upper surface of the second curved surface connecting plate (10) is a convex spherical surface matching the concave spherical surface of the lower surface of the first curved surface connecting plate (5), and a first sliding curved plate (9) is fixedly mounted on the bottom of the first curved surface connecting plate (5), and the convex spherical surface of the second curved surface connecting plate (10) and the first sliding curved plate (9) form a first sliding friction pair.

4. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: The lower surface of the second curved surface connecting plate (10) is a concave spherical surface, the upper surface of the curved surface sliding block (12) is a convex spherical surface that matches the concave spherical surface of the lower surface of the second curved surface connecting plate (10), the lower surface of the second curved surface connecting plate (10) is fixedly connected to the second sliding curved surface plate (11), and the convex spherical surface of the upper surface of the curved surface sliding block (12) and the second sliding curved surface plate (11) form a second sliding friction pair.

5. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: The lower surface of the curved sliding block (12) is a convex spherical surface, the upper surface of the third curved connecting plate (14) is a concave spherical surface that matches the convex spherical surface of the lower surface of the curved sliding block (12), and the upper surface of the third curved connecting plate (14) is fixedly connected to the third sliding curved plate (13), and the convex spherical surface of the lower surface of the curved sliding block (12) and the third sliding curved plate (13) form a third sliding friction pair.

6. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: The lower surface of the third curved surface connecting plate (14) is a convex spherical surface, the upper surface of the fourth curved surface connecting plate (16) is a concave spherical surface that matches the convex spherical surface of the lower surface of the third curved surface connecting plate (14), and the upper surface of the fourth curved surface connecting plate (16) is fixedly connected to a fourth sliding curved plate (16), and the convex spherical surface of the third curved surface connecting plate (14) and the fourth sliding curved plate (15) form a third sliding friction pair.

7. A self-resetting translational swing coordinated friction pendulum anti-lifting device according to any one of claims 1 to 6, characterized in that: The first curved surface connecting plate (9), the second curved surface connecting plate (11), the third curved surface connecting plate (13) and the fourth curved surface connecting plate (16) are made of polytetrafluoroethylene and its composite materials, stainless steel plates, chrome plating layers or hard alloy coatings, ceramic materials or graphite-based materials.

8. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: The bottom of the first translational connecting plate (1) is provided with a plurality of circular grooves, and the top surface of the second translational connecting plate (4) is provided with a plurality of circular grooves at positions corresponding to the bottom of the first translational connecting plate (1), wherein the grooves are filled with lubricating fillers, and the lubricating fillers include but are not limited to solid lubricants, grease or lubricating oils.

9. The self-resetting translational swing coordinated friction pendulum anti-lifting device according to claim 1, characterized in that: A plurality of upper ear plates (2) are fixedly connected to the side wall of the first translation connecting plate (1), and through holes are provided on the upper ear plates (2); A plurality of lower ear plates (8) are fixedly connected to the side wall of the bottom connecting plate (17), and through holes are provided on the lower ear plates (8).

10. A method for assembling a friction pendulum anti-lifting device with self-resetting translational swing coordination, characterized in that: The invention is realized by using a friction pendulum anti-lifting device with self-resetting translational swing coordination according to any one of claims 1 to 9, comprising: S100: The upper ear plate (2) is fixedly mounted on the side wall of the first translation connecting plate (1), the lower ear plate (8) is fixedly mounted on the side wall of the bottom connecting plate (17), and the C-shaped sliding limit block (7) is fixedly mounted on the side wall of the fourth curved connecting plate (16); S200: The bottom connecting plate (17) is fixedly installed on the bottom of the fourth curved connecting plate (16) to form a stable bottom support structure, and then the third curved connecting plate (14), the curved sliding block (12), the second curved connecting plate (10) and the first curved connecting plate (5) are placed in order from bottom to top, and then the S-shaped sliding limit block (6) is fixedly installed on the side wall of the first curved connecting plate (5), and is connected with the C-shaped sliding limit block (7), thereby constructing a complete limit mechanism, effectively limiting the movement range of each component, and ensuring the stable operation of the device; S300: The second translation connecting plate (4) is fixedly mounted on the top of the first curved connecting plate (5), and a lubricating filler is filled into the circular groove on the top of the first curved connecting plate (5), and then the first translation connecting plate (1) is mounted on the top of the second translation connecting plate (4); S400: After the first translation connecting plate (1) is installed, the arc-shaped self-resetting device (3) is fixedly installed on the side wall of the first translation connecting plate (1) and the top of the S-shaped sliding limit block (6), ensuring that its installation position is accurate and firm.

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