CN219219423U - Rotary friction type damper - Google Patents

Abstract

The utility model relates to the technical field of energy consumption and shock absorption, in particular to a rotary friction type damper which comprises a first rotary plate, wherein one end of the first rotary plate is rotationally connected with a first mounting seat, the other end of the first rotary plate is rotationally connected with a second rotary plate, one end of the second rotary plate far away from the first rotary plate is rotationally connected with a second mounting seat, and friction plates are arranged between the first mounting seat and the first rotary plate, between the first rotary plate and the second rotary plate and between the second rotary plate and the second mounting seat. According to the technical scheme, the rotary friction points are arranged between the first mounting seat and the first rotary plate, between the first rotary plate and the second rotary plate and between the second rotary plate and the second mounting seat, so that the rotary friction type damper can flexibly rotate at multiple angles, the problem that the conventional friction type damper cannot cope with the deformation of a corner structure is solved, and the practicability of the rotary friction type damper is improved.

Description

Rotary friction type damper

Technical Field

The utility model relates to the technical field of energy consumption and shock absorption, in particular to a rotary friction type damper.

Background

Earthquake is a common natural disaster, and causes great threat to life and property safety of people, however, when dealing with huge energy input generated by earthquake waves, the traditional building structure only utilizes the material property and rigidity of the building structure to resist earthquake energy, which can cause great damage to the building structure, thereby causing secondary damage to life and property safety of internal people.

For modern buildings, the most common energy dissipation and shock absorption technology is to provide energy dissipation (damping) devices (or elements) at certain parts (such as support, shear walls, connecting joints or connecting members) of the building structure, and before the building structure enters an inelastic state, the devices (or elements) enter an energy dissipation working state first, and friction, bending (or shearing or torsion) elastoplastic (or viscoelasticity) hysteresis deformation is generated by the devices to dissipate energy or absorb energy input into the building structure by the earthquake, so that earthquake reaction of the building structure is reduced, and the safety of the building structure is protected.

In recent years, with the gradual improvement of energy dissipation and vibration reduction technologies, various types of dampers are developed, wherein a friction damper is a classical damper form, and the damper is driven to displace through deformation of a building structure, so that the friction surface of the damper is caused to relatively move, and accordingly, earthquake input energy is converted into heat energy through friction to be dissipated, and meanwhile, additional rigidity can be provided for the building structure through static friction of the damper, so that the building structure is protected from being damaged by an earthquake.

However, most of the conventional friction-type dampers are of a flat type, and the friction energy consumption is carried out by generating relative vertical displacement through the building structure, so that the friction-type dampers cannot cope with structural deformation of many corners, and the use of the friction-type dampers is limited.

Disclosure of Invention

The utility model aims to provide a rotary friction type damper which is convenient to install and high in practicability, and can flexibly rotate at multiple angles so as to cope with possible rotation deformation of a building structure, solve the problem that the conventional friction type damper cannot cope with rotation angle type structural deformation, increase the practicability of the rotary friction type damper and enlarge the application range of the rotary friction type damper.

The utility model provides a rotary friction type damper which comprises a first rotating plate, wherein one end of the first rotating plate is rotationally connected with a first mounting seat, the other end of the first rotating plate is rotationally connected with a second rotating plate, one end of the second rotating plate far away from the first rotating plate is rotationally connected with a second mounting seat, and friction plates are arranged between the first mounting seat and the first rotating plate, between the first rotating plate and the second rotating plate and between the second rotating plate and the second mounting seat.

Further, the first mount pad includes first connecting plate, one side of first connecting plate is equipped with rather than vertically first otic placode, first otic placode with first rotating plate rotates to be connected, first otic placode with be equipped with between the first rotating plate the friction disc.

Further, the second mount pad includes the second connecting plate, one side of second connecting plate is equipped with rather than vertically second otic placode, the second rotor plate keep away from the one end of first rotor plate with the second otic placode rotates to be connected, the second otic placode with be equipped with between the second rotor plate the friction disc.

Further, the first lug plate is connected with the first rotating plate, the first rotating plate is connected with the second rotating plate, the second rotating plate is connected with the second lug plate through a pin shaft in a rotating mode, and two ends of the pin shaft are detachably connected with limiting covers.

Further, the friction plate is fixed between the first lug plate and the first rotating plate, between the first rotating plate and the second rotating plate, and between the second rotating plate and the second lug plate through high-strength bolts.

Further, the first rotating plate and the second lug plate are provided with a plurality of first through holes matched with the high-strength bolts, the friction plate is provided with second through holes matched with the high-strength bolts at positions corresponding to the first through holes, the second rotating plate and the first lug plate are provided with sliding grooves at positions corresponding to the first through holes, and the high-strength bolts penetrate through the first through holes, the second through holes and the sliding grooves.

Further, the width of the sliding groove is larger than the apertures of the first through hole and the second through hole.

Further, the first lug plate is rotationally connected with the first rotating plate, the first rotating plate is rotationally connected with the second rotating plate, and the second rotating plate is rotationally connected with the second lug plate through high-strength bolts.

Further, disc springs and gaskets are arranged between the screw end of the high-strength bolt and the first rotating plate and between the screw end of the high-strength bolt and the second lug plate, and between the nut of the high-strength bolt and the first rotating plate and between the nut of the high-strength bolt and the second lug plate.

Further, the first connecting plate and the second connecting plate are provided with a plurality of mounting holes distributed in an array.

The utility model has the beneficial effects that:

according to the technical scheme, the rotary friction points are arranged between the first mounting seat and the first rotary plate, between the first rotary plate and the second rotary plate and between the second rotary plate and the second mounting seat, so that rotary displacement of the three points is released, the rotary friction type damper can flexibly rotate at multiple angles to cope with rotary deformation possibly occurring in a building structure, the problem that the conventional friction type damper cannot cope with the deformation of a corner structure is solved, the practicability of the rotary friction type damper is improved, and the application range of the rotary friction type damper is enlarged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a structure of a rotary friction damper according to embodiment 1 of the present utility model;

FIG. 2 is an exploded view of a rotary friction damper according to embodiment 1 of the present utility model;

FIG. 3 is a schematic structural view of a first rotating plate in embodiment 1 of the present utility model;

FIG. 4 is a schematic view showing the structure of a friction plate according to embodiment 1 of the present utility model;

fig. 5 is a schematic structural view of a second rotating plate in embodiment 1 of the present utility model;

fig. 6 is a schematic structural diagram of a first mounting seat in embodiment 1 of the present utility model;

fig. 7 is a schematic structural diagram of a second mounting seat in embodiment 1 of the present utility model;

FIG. 8 is a schematic view of the structure of the high strength bolt according to embodiment 1 of the present utility model;

fig. 9 is a schematic structural view of a pin in embodiment 1 of the present utility model;

FIG. 10 is a schematic view showing the structure of a rotary friction damper according to embodiment 2 of the present utility model;

FIG. 11 is a schematic view showing the structure of a rotary friction damper according to embodiment 3 of the present utility model;

fig. 12 is an exploded view of a rotary friction damper according to embodiment 3 of the present utility model.

Reference numerals illustrate:

1-first connecting plate, 2-first lug plate, 3-first rotating plate, 4-friction disc, 5-second rotating plate, 6-second connecting plate, 7-second lug plate, 8-high strength bolt, 9-belleville spring, 10-gasket, 11-fixing bolt, 12-limit cover, 13-mounting hole, 14-first shaft hole, 15-first through hole, 16-second shaft hole, 17-second through hole, 18-third shaft hole, 19-sliding groove, 20-nut, 21-round pin axle.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 1 to 9, a rotary friction damper comprises two first rotating plates 3 which are parallel to each other and are arranged at intervals, wherein each first rotating plate 3 is of a cuboid structure with semicircular arcs at two ends, one side of each first rotating plate 3 is provided with a first connecting plate 1, each first connecting plate 1 is of a cuboid structure, one side of each first connecting plate 1, which is close to each first rotating plate 3, is provided with a first lug plate 2 perpendicular to the first connecting plate 1, each first lug plate 2 is of a cuboid structure with semicircular arcs at one end, semicircular ends of each first lug plate 2 extend into between the two first rotating plates 3 and are respectively connected with the two first rotating plates 3 in a rotary mode, a second rotating plate 5 is arranged between the two first rotating plates 3, each second rotating plate 5 is of a cuboid structure with semicircular arcs at two ends, one end of each second rotating plate 5, which is positioned between the two first rotating plates 3, is respectively connected with the two first rotating plates 3 in a rotary mode, the other end of second pivoted plate 5 is equipped with second connecting plate 6, second connecting plate 6 is the cuboid structure, one side that second connecting plate 6 is close to second pivoted plate 5 is equipped with two rather than vertically second otic placode 7, second otic placode 7 is the cuboid structure that one end was equipped with the semicircle, the one end opposite with the semicircle end on the second otic placode 7 is connected with second connecting plate 6, the one end that first pivoted plate 3 was kept away from to second pivoted plate 5 stretches into between two second otic placode 7 to rotate with two second otic placode 7 respectively and be connected, all be equipped with friction disc 4 between first otic placode 2 and the first pivoted plate 3, between first pivoted plate 3 and the second pivoted plate 5, between second pivoted plate 5 and the second otic placode 7, all be equipped with eight mounting hole 13 that array distributes on first pivoted plate 1 and the second pivoted plate 6, mounting hole 13 is oval.

Under the action of an earthquake, the friction plates 4 are driven to perform friction energy consumption through the relative rotation of the first ear plate 2 and the first rotating plate 3, the first rotating plate 3 and the second rotating plate 5 and the second ear plate 7, so that the earthquake energy consumption is realized, and the rotating points are arranged between the first ear plate 2 and the first rotating plate 3, between the first rotating plate 3 and the second rotating plate 5 and between the second rotating plate 5 and the second ear plate 7, so that the rotating displacement of three points is released, the rotating friction type damper can flexibly rotate at multiple angles, the problem that the conventional friction type damper cannot cope with the deformation of a corner structure is solved, the practicability of the rotating friction type damper is increased, the application range of the rotating friction type damper is enlarged, and the friction plates 4 can be made of polytetrafluoroethylene, metal alloy, asbestos-free organic matters or composite materials, so that the friction plates 4 can provide stable friction force when rotating;

meanwhile, the arrangement of three rotation points can effectively reduce the use space of the rotary friction damper, so that the space utilization rate of the rotary friction damper is improved, in addition, the rotary friction damper can amplify the angular displacement of a building structure to the three rotation points, so that the rotary energy consumption part is utilized to the greatest extent, the energy consumption amplification effect is realized, in addition, the connection of the first connecting plate 1 and the second connecting plate 6 with the building structure can be realized by adopting bolts through the arrangement of the mounting holes 13, the working procedure is simple, the convenience and the rapidness are realized, the mounting holes 13 are elliptical, a certain axial displacement space can be provided for the bolts, and the influence of local deformation on the normal work of the rotary friction damper is avoided.

The first ear plate 2 and the first rotating plate 3, the first rotating plate 3 and the second rotating plate 5 and the second ear plate 7 are all connected through a pin shaft 21 in a rotating mode, first shaft holes 14 matched with the pin shaft 21 are formed in the first rotating plate 3 and the second ear plate 7, second shaft holes 16 matched with the pin shaft 21 are formed in positions, corresponding to the first shaft holes 14, of the friction plate 4, third shaft holes 18 matched with the pin shaft 21 are formed in positions, corresponding to the first shaft holes 14, of the second rotating plate 5 and the second ear plate 7, the pin shaft 21 penetrates through the first shaft holes 14, the second shaft holes 16 and the third shaft holes 18, limiting covers 12 are arranged at two ends of the pin shaft 21, and the limiting covers 12 are detachably connected with the pin shaft 21 through fixing bolts 11.

Through passing round pin axle 21 in proper order first shaft hole 14, second shaft hole 16, third shaft hole 18, second shaft hole 16 and first shaft hole 14 to install spacing lid 12 at the both ends of round pin axle 21, screw up fixing bolt 11, thereby fix spacing lid 12 on round pin axle 21, under the effect of earthquake, first otic placode 2 and first rotatory board 3, first rotatory board 3 and second rotatory board 5, second rotatory board 5 and second otic placode 7 can rotate round pin axle 21, thereby drive friction disc 4 and rub the power consumption, and the spacing lid 12 at round pin axle 21 both ends can prevent that round pin axle 21 from droing under the effect of earthquake, avoid appearing the unable normal work's of rotatory friction type damper condition.

The friction disc 4 is respectively installed between the first lug plate 2 and the first rotating plate 3, between the first rotating plate 3 and the second rotating plate 5 and between the second rotating plate 5 and the second lug plate 7 through high-strength bolts 8, eight first through holes 15 matched with the high-strength bolts 8 are respectively formed in the peripheries of the first shaft holes 14 on the first rotating plate 3 and the second lug plate 7, the eight first through holes 15 are circumferentially arranged by taking the center of the circle of the first shaft holes 14 as the center of the circle, second through holes 17 matched with the high-strength bolts 8 are respectively formed in the positions, corresponding to the first through holes 15, of the friction disc 4, sliding grooves 19 are respectively formed in the positions, corresponding to the first through holes 15, of the second rotating plate 5 and the first lug plate 2, the width of each sliding groove 19 is larger than the diameters of the first through holes 15 and the second through holes 17, the high-strength bolts 8 penetrate through the first through holes 15, the second through holes 17 and the sliding grooves 19, disc-shaped gaskets 10 are respectively formed between screw heads of the high-strength bolts 8 and the first rotating plate 3 and the second lug plate 7, nuts 20 of the high-strength bolts 8 and disc-shaped gaskets 10 are respectively arranged between the first rotating plate 3 and the second lug plate 7 and the disc-shaped gaskets 7.

Through passing one end of the high strength bolt 8 through the first through hole 15, the second through hole 17, the sliding groove 19, the second through hole 17 and the first through hole 15 in sequence, and screwing the nut 20, the high strength bolt 8 is fixed, so that the friction plate 4 is arranged between the first lug plate 2 and the first rotating plate 3, between the first rotating plate 3 and the second rotating plate 5 and between the second rotating plate 5 and the second lug plate 7, and the disc spring 9 and the gasket 10 are arranged between the screw end of the high strength bolt 8 and the first rotating plate 3 and the second lug plate 7, the pre-compression force is provided for the friction plate 4 through the high strength bolt 8 and the disc spring 9, the initial rigidity and the energy consumption capacity of the rotary friction damper can be changed by changing the pre-compression force, the rotary friction damper can have good fatigue resistance under small structural displacement, and can be sensitively adapted to various types of corner displacement when beam-column joint energy consumption deformation, and the reliability of the rotary friction damper is ensured.

Example 2

As shown in fig. 10, a rotary friction damper has the same structure as that of embodiment 1, except that: the device comprises three first rotating plates 3 which are parallel to each other and are arranged at intervals, wherein a first connecting plate 1 is arranged on one side of each first rotating plate 3, two first lug plates 2 perpendicular to the first connecting plate 1 are arranged on one side, close to each first rotating plate 3, of each first connecting plate 1, and each two first lug plates 2 extend into the space between two adjacent first rotating plates 3 and are respectively connected with the first rotating plates 3 in a rotating way;

a second rotating plate 5 is arranged between every two adjacent first rotating plates 3, one ends of the two second rotating plates 5, which are close to the first rotating plates 3, are respectively connected with the two adjacent first rotating plates 3 in a rotating way, one ends of the second rotating plates 5, which are far away from the first rotating plates 3, are provided with second connecting plates 6, one sides of the second connecting plates 6, which are close to the second rotating plates 5, are provided with three second lug plates 7 perpendicular to the second connecting plates, and one ends of the two second rotating plates 5, which are far away from the first rotating plates 3, are respectively stretched into between the two adjacent second lug plates 7 and are respectively connected with the second lug plates 7 in a rotating way.

Example 3

As shown in fig. 11 and 12, a rotary friction damper has substantially the same structure as that of embodiment 1, except that: the first lug plate 2 is rotationally connected with the first rotating plate 3, the first rotating plate 3 is rotationally connected with the second rotating plate 5, the second rotating plate 5 is rotationally connected with the second lug plate 7 through the high-strength bolt 8, and the disc springs 9 and gaskets 10 are arranged between the screw end of the high-strength bolt 8 and the first rotating plate 3 and the second lug plate 7, and between the nut 20 of the high-strength bolt 8 and the first rotating plate 3 and the second lug plate 7.

The rotation connection of the first lug plate 2 and the first rotating plate 3, the first rotating plate 3 and the second rotating plate 5 and the rotation connection of the second rotating plate 5 and the second lug plate 7 are realized through the high-strength bolts 8, so that the high-strength bolts 8 play a double role in fastening and rotating a central shaft.

Working principle: the first connecting plate 1 and the second connecting plate 6 are installed on a building structure through bolts, and under the action of an earthquake, the friction plate 4 is driven to perform friction energy consumption through relative rotation of the first lug plate 2 and the first rotating plate 3, the first rotating plate 3 and the second rotating plate 5, and the second rotating plate 5 and the second lug plate 7, so that the earthquake energy is consumed.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The utility model provides a rotation friction formula attenuator, its characterized in that, includes first rotating plate, the one end rotation of first rotating plate is connected with first mount pad, the other end rotation of first rotating plate is connected with the second rotating plate, the second rotating plate is kept away from the one end rotation of first rotating plate is connected with the second mount pad, first mount pad with between the first rotating plate with between the second rotating plate with all be equipped with the friction disc between the second mount pad.

2. The rotary friction damper according to claim 1, wherein the first mounting base includes a first connecting plate, a first lug plate perpendicular to the first connecting plate is provided on one side of the first connecting plate, the first lug plate is rotationally connected with the first rotating plate, and the friction plate is provided between the first lug plate and the first rotating plate.

3. The rotary friction damper according to claim 2, wherein the second mounting base comprises a second connecting plate, a second lug plate perpendicular to the second connecting plate is arranged on one side of the second connecting plate, one end, away from the first rotating plate, of the second rotating plate is rotatably connected with the second lug plate, and the friction plate is arranged between the second lug plate and the second rotating plate.

4. The rotary friction damper according to claim 3, wherein the first ear plate and the first rotary plate, the first rotary plate and the second rotary plate, and the second rotary plate and the second ear plate are all rotatably connected by a pin shaft, and both ends of the pin shaft are detachably connected with a limit cover.

5. The rotary friction damper according to claim 4, wherein the friction plate is fixed between the first ear plate and the first rotary plate, between the first rotary plate and the second rotary plate, and between the second rotary plate and the second ear plate by high-strength bolts.

6. The rotary friction damper according to claim 5, wherein the first rotary plate and the second lug plate are provided with a plurality of first through holes matched with the high-strength bolts, the friction plate is provided with second through holes matched with the high-strength bolts at positions corresponding to the first through holes, and the second rotary plate and the first lug plate are provided with sliding grooves at positions corresponding to the first through holes, wherein the high-strength bolts penetrate through the first through holes, the second through holes and the sliding grooves.

7. The rotary friction damper according to claim 6, wherein the width of the slip groove is larger than the apertures of the first and second through holes.

8. A rotary friction damper according to claim 3, wherein the first ear plate and the first rotary plate, the first rotary plate and the second rotary plate, and the second rotary plate and the second ear plate are all rotatably connected by high strength bolts.

9. The rotary friction damper according to claim 5 or 8, wherein a belleville spring and a washer are provided between the screw end of the high-strength bolt and the first and second rotating plates, and between the nut of the high-strength bolt and the first and second rotating plates.

10. A rotary friction damper according to claim 3, wherein the first and second connection plates are each provided with a plurality of mounting holes distributed in an array.

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