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CN-224228026-U - Self-resetting variable friction hinge damper

CN224228026UCN 224228026 UCN224228026 UCN 224228026UCN-224228026-U

Abstract

The utility model discloses a self-resetting friction hinge damper, and belongs to the field of concrete building structures. The self-resetting friction hinge damper comprises an outer cover plate, an inner clamping plate, a curved friction part and a friction cushion block, wherein the outer cover plate and the inner clamping plate are rotatably connected through the curved friction part, the inner clamping plate is arranged on the inner side of the outer cover plate, the curved friction parts are respectively arranged on the surfaces of one end of the outer cover plate and one end of the inner clamping plate, the curved friction parts on the surfaces of the outer cover plate and the inner clamping plate can be mutually attached, and the friction cushion block is embedded between one end, where the curved friction part is not arranged, of the inner clamping plate, so that the technical problems of limited friction energy consumption and self-resetting capability in the conventional friction damper are solved.

Inventors

  • TIAN PENGGANG
  • WANG JIAJIA
  • LIU KANGNING
  • Yang Menjie
  • GAO YUAN
  • Xiong Ergang

Assignees

  • 陕西建工控股集团未来城市创新科技有限公司
  • 长安大学

Dates

Publication Date
20260512
Application Date
20250423

Claims (10)

  1. 1. A self-resetting friction hinge damper is characterized by comprising an outer cover plate (1), an inner clamping plate (2), a curved friction part and a friction cushion block (7), wherein the outer cover plate (1) and the inner clamping plate (2) are rotatably connected through the curved friction part, the inner clamping plate (2) is arranged on the inner side of the outer cover plate (1), the curved friction part is respectively arranged on the surfaces of one end of the outer cover plate (1) and one end of the inner clamping plate (2), the curved friction parts on the surfaces of the outer cover plate (1) and the inner clamping plate (2) can be mutually attached, and the friction cushion block (7) is embedded between one end of the inner clamping plate (2) where the curved friction part is not arranged.
  2. 2. The self-resetting friction hinge damper according to claim 1, wherein the curved friction component comprises a first curved surface (8) and a second curved surface (9), the first curved surface (8) and the second curved surface (9) are respectively arranged on the surfaces of one ends of the outer cover plate (1) and the inner clamping plate (2), and the first curved surface (8) and the second curved surface (9) are mutually attached.
  3. 3. The self-resetting friction hinge damper is characterized by further comprising a pin shaft (4) and an SMA bolt (5), wherein slotted holes (11) are formed in the surface of the friction cushion block (7), pin shaft holes (3) are formed in the centers of the first curved surface (8), the second curved surface (9) and the friction cushion block (7), SMA bolt holes (10) are formed in the periphery of the first curved surface (8), the second curved surface (9) and one end of the outer cover plate (1), the outer cover plate (1) and the inner cover plate (2) are mutually attached through the first curved surface (8) and the second curved surface (9), the pin shaft (4) penetrates through the pin shaft holes (3) in the centers of the first curved surface (8), the second curved surface (9) and the friction cushion block (7) to connect the outer cover plate (1), the inner cover plate (2) and the friction cushion block (7), and the SMA bolt (5) penetrates through the SMA bolt holes (10) and is clamped in the slotted holes (11).
  4. 4. The self-resetting friction hinge damper according to claim 3, wherein the number of the slotted holes (11) is a plurality of, and the slotted holes (11) are symmetrically arranged on the surface center of the friction cushion block (7) by taking the pin shaft hole (3) in the center of the friction cushion block (7) as a symmetry point.
  5. 5. A self-resetting friction hinge damper according to claim 3, characterized in that the SMA bolt (5) is provided with a nut (6).
  6. 6. A self-resetting friction hinge damper according to claim 3, characterized in that the SMA bolt (5) consists of a threaded section (12), a transition section (13) and a weakened section (14), the threaded section (12) being located at both ends of the SMA bolt (5), the weakened section (14) being located in the middle, and the threaded section (12) at both ends being connected to the weakened section (14) by the transition section (13).
  7. 7. A self-resetting friction hinge damper according to claim 1, characterized in that the other ends of the outer cover plate (1) and the inner clamping plate (2) are also provided with pin holes (3).
  8. 8. A self-resetting friction-varying hinge damper according to claim 7, characterized in that the pin openings (3) at the other ends of the outer cover (1) and the inner clamping plate (2) are connected to the building.
  9. 9. A self-resetting friction-reducing hinge damper according to claim 1, characterized in that the width between the outer cover plates (1) is greater than the width between the inner clamping plates (2).
  10. 10. A self-resetting friction-changing hinge damper according to claim 1, characterized in that the outer cover plate (1) is arranged at one end and the inner clamping plate (2) is arranged at one end in a 90 ° connection.

Description

Self-resetting variable friction hinge damper Technical Field The utility model belongs to the field of concrete building structures, and relates to a self-resetting friction hinge damper. Background The assembled building has become the mainstream trend of building industry development by virtue of the remarkable advantages of green low carbon, energy conservation, environmental protection, short construction period, reliable engineering quality and the like. However, with the popularization of the fabricated building, the demand of shock resistance and vibration absorption is also increasingly prominent. In order to cope with the challenge, researchers develop various energy-consumption damping devices, wherein the friction damper becomes a research focus in the anti-seismic damping field due to the characteristics of stable hysteresis performance, strong energy consumption capability, convenient use, low maintenance cost, no need of external energy support and the like. However, the performance parameters of the common friction damper are usually fixed, and are difficult to dynamically adjust according to the actual earthquake vibration characteristics or structural requirements, and the common friction damper cannot realize a self-resetting function in the energy consumption process, so that the structure can generate larger residual deformation after an earthquake, and the normal use of the building is affected. Disclosure of utility model The utility model aims to provide a self-resetting friction hinge damper which is used for solving the technical problems of limited friction energy consumption and self-resetting capability in the existing friction damper. In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: the application discloses a self-resetting variable friction hinge damper which comprises an outer cover plate, an inner clamping plate, a curved friction part and a friction cushion block, wherein the outer cover plate and the inner clamping plate are rotatably connected through the curved friction part, the inner clamping plate is arranged on the inner side of the outer cover plate, the curved friction part is respectively arranged on the surfaces of one end of the outer cover plate and one end of the inner clamping plate, the curved friction parts on the surfaces of the outer cover plate and the inner clamping plate can be mutually attached, and the friction cushion block is embedded between one end of the inner clamping plate, on which the curved friction part is not arranged. The curved surface friction component comprises a first curved surface and a second curved surface, wherein the first curved surface and the second curved surface are respectively arranged on the surfaces of one end of the outer cover plate and one end of the inner clamping plate, and the first curved surface and the second curved surface are mutually attached. The novel friction cushion block comprises a friction cushion block, and is characterized by further comprising a pin shaft and an SMA bolt, wherein the surface of the friction cushion block is provided with a slotted hole, pin holes are formed in the centers of the first curved surface, the second curved surface and the friction cushion block, SMA bolt holes are formed in the peripheries of the first curved surface and the second curved surface and at one end of an outer cover plate, the outer cover plate and an inner clamping plate are mutually attached through the first curved surface and the second curved surface, the pin shaft penetrates through the pin holes in the centers of the first curved surface, the second curved surface and the friction cushion block to connect the outer cover plate, the inner clamping plate and the friction cushion block, and the SMA bolt penetrates through the SMA bolt holes and is clamped in the slotted hole. The number of the slotted holes is a plurality, and the slotted holes are symmetrically arranged on the surface center of the friction cushion block by taking a pin shaft hole in the center of the friction cushion block as a symmetrical point. Further, a nut is arranged on the SMA bolt. The SMA bolt is characterized by further comprising a threaded section, a transition section and a weakening section, wherein the threaded section is positioned at two ends of the SMA bolt, the weakening section is positioned in the middle, and the threaded sections at two ends are connected with the weakening section through the transition section. Further, the other ends of the outer cover plate and the inner clamping plate are also provided with pin shaft holes. Further, the pin shaft holes at the other ends of the outer cover plate and the inner clamping plate are connected with the building. Further, the width between the outer cover plates is greater than the width between the inner clamping plates. Further, one end of the outer cover plate and one end of the inner clamping pla