CN215110260U

CN215110260U - Friction damper

Info

Publication number: CN215110260U
Application number: CN202120638655.7U
Authority: CN
Inventors: 张少荃; 张韵秋
Original assignee: Shanghai Naguye Construction Co ltd; Jiangsu Feierpu Engineering Technology Co ltd
Current assignee: Shanghai Naguye Construction Co ltd; Jiangsu Feierpu Engineering Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-12-10
Anticipated expiration: 2031-03-30

Abstract

The utility model belongs to the technical field of building engineering shock absorption, in particular to a friction damper, which comprises a cylinder body, wherein a sliding plug is arranged in the cylinder body, the outer side wall of the sliding plug is connected with the inner side wall of the cylinder body in a sliding way, the upper end surface of the sliding plug is penetrated and fixedly connected with a pressure rod, the upper end surface of the pressure rod extends to the outside of the cylinder body, the bottom of the pressure rod extends to the lower part of the sliding plug, the bottom end surface of the sliding plug is fixedly connected with two connecting plates which are distributed left and right, so that the four baffle plates and the sliding plug are blocked from moving downwards by four first springs, and the impact force applied to the pressure rod plays a role of buffering and shock absorption, thereby the smaller impact force is damped, the disc and the pressure rod are blocked and the shock is reduced by the larger damping force generated by the cooperation of an elastic pad and a shock-proof pad and three strong springs, thereby the effect of providing different damping forces according to different shock impact forces is achieved, the practicability of the damper is improved, and the maintenance cost is reduced.

Description

Friction damper

Technical Field

The utility model relates to a building engineering shock attenuation technical field, concretely relates to friction damper.

Background

The development and research of energy-consuming and shock-absorbing dampers of building structures become one of the hot spots of the research in the field of earthquake resistance of world engineering, earthquake input energy is consumed by additionally arranging dampers in the structures, the safety of main structural members is protected, the passive energy-consuming and shock-absorbing dampers are widely proved to be effective earthquake-resistant measures, and passive energy-consuming and shock-absorbing devices commonly used in building structure systems are mainly classified into four categories: viscous damper, metal damper, viscoelasticity damper and friction type attenuator, wherein, the theory of operation of friction type attenuator is: when earthquake happens, the mutual friction between materials consumes energy, thereby achieving the purpose of reducing the structural damage.

At present, a friction damper is the most important damping device in the field of earthquake resistance of constructional engineering, and the friction damper has the characteristics of long deformation capacity, stable energy consumption capacity and the like, but the damping force of the conventional friction damper is relatively fixed, so that different damping forces cannot be provided according to different earthquake stages, and when large earthquake occurs, the friction damper is usually damaged and needs to be replaced, which is troublesome.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a friction damper has and carries out damped characteristics with less impact force, provides the effect of different damping force according to the vibrations impact force of difference, improves the characteristics of the practicality of attenuator.

In order to achieve the above object, the utility model provides a following technical scheme: a friction damper comprises a cylinder body, wherein a sliding plug is arranged inside the cylinder body, the outer side wall of the sliding plug is in sliding connection with the inner side wall of the cylinder body, the upper end face of the sliding plug penetrates through and is fixedly connected with a pressure rod, the upper end face of the pressure rod extends to the outside of the cylinder body, the bottom of the pressure rod extends to the lower side of the sliding plug, the bottom end face of the sliding plug is fixedly connected with two connecting plates which are distributed left and right, first corrugated plates are fixedly arranged on the left side and the right side of the two connecting plates, blocking plates are arranged on the left side and the right side of the two connecting plates, second corrugated plates are fixedly arranged on one opposite sides of the four blocking plates in a pairwise and left and right mode, first springs are fixedly arranged on the bottom end faces of the four blocking plates, a fixed plate is fixedly arranged inside the cylinder body, and the bottoms of the four first springs are fixedly connected with the upper end face of the fixed plate, the inside wall of barrel is seted up three evenly distributed's spout, and is three the equal sliding connection in inside of spout has the slider, and is three the equal fixedly connected with connecting rod in the relative one side of slider, it is three the relative one end of connecting rod has the disc through pivot swing joint, the bottom face fixed mounting of disc has the cushion, cushion fixed mounting is in the inside bottom face of barrel.

For the convenience of four barrier plates slide from top to bottom along the inside wall of barrel and the lateral wall of depression bar respectively, do the utility model relates to a friction damper is preferred, four the barrier plate all is the arc form, four one side that two liang of relative keeping away from about the barrier plate respectively with the inside wall of barrel and the lateral wall sliding connection of depression bar.

In order to facilitate the disc to provide damping force to the depression bar, conduct the utility model relates to a friction damper is preferred, the through-hole has been seted up in the middle part of fixed plate through, the bottom of depression bar is passed the through-hole and is extended to the below of fixed plate.

In order to hinder three slider decline, as the utility model relates to a friction damper is preferred, three the equal fixed mounting of inside bottom face of spout has powerful spring, and is three the top of powerful spring respectively with the bottom face fixed connection of three slider.

Avoid taking place to sideslip in order to increase the frictional force between first buckled plate and the second buckled plate, conduct the utility model relates to a friction damper is preferred, two the connecting plate all is three horn shapes, four first buckled plate and four second buckled plates are the rubber material.

In order to reduce the impact and the vibration of the pressure rod, the shockproof pad is preferably arranged at the middle part of the upper end surface of the disc, and the shockproof pad is fixedly arranged at the middle part of the upper end surface of the disc.

Compared with the prior art, the beneficial effects of the utility model are that:

when the upper end of the pressure rod is subjected to small external impact force, the sliding plug and the two connecting plates move downwards to enable the four first corrugated plates to be in contact with the four second corrugated plates and further to press the four blocking plates downwards to deform the four first springs in a compression mode, so that the four first springs block the four blocking plates and the sliding plug to move downwards and play a role in buffering and damping the impact force received by the pressure rod, and therefore the characteristic of damping small impact force is achieved. At the moment, the elastic pad and the shockproof pad are matched with the three strong springs to generate larger damping force to prevent the disc and the pressure rod from descending and slow down the vibration, so that the effect of providing different damping force according to different vibration impact force is achieved, and the practicability of the damper is improved;

to sum up, this kind of friction damper hinders four barrier plates and sliding plug downstream through four first springs to play the absorbing effect of buffering to the impact force that the depression bar received, thereby carry out damped characteristics with less impact force, hinder disc and depression bar decline and slow down vibrations through cushion and antivrbration pad and the great damping force that produces three powerful spring cooperation, thereby reach the effect that provides different damping force according to the vibrations impact force of difference, improve the practicality of attenuator, reduced the maintenance cost.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a structural view of a friction damper according to the present invention;

FIG. 2 is a top cross-sectional view of the disk of FIG. 1 in accordance with the present invention;

fig. 3 is a top sectional view of the slider in the barrel shown in fig. 1 according to the present invention.

In the figure, 1, a cylinder; 2. a pressure lever; 3. a sliding plug; 301. a connecting plate; 302. a first corrugated plate; 4. a blocking plate; 401. a second corrugated plate; 5. a first spring; 6. a fixing plate; 601. a through hole; 7. a chute; 701. a slider; 702. a strong spring; 8. a disc; 801. a connecting rod; 802. a crash pad; 803. an elastic pad.

Detailed Description

In order to make the objects, 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 merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides the following technical solutions: a friction damper comprises a cylinder body 1, a sliding plug 3 is installed inside the cylinder body 1, the outer side wall of the sliding plug 3 is connected with the inner side wall of the cylinder body 1 in a sliding mode, the upper end face of the sliding plug 3 penetrates through and is fixedly connected with a pressure rod 2, the upper end face of the pressure rod 2 extends to the outside of the cylinder body 1, the bottom of the pressure rod 2 extends to the lower portion of the sliding plug 3, two connecting plates 301 distributed on the left and right sides are fixedly connected with the bottom end face of the sliding plug 3, first corrugated plates 302 are fixedly installed on the left and right sides of the two connecting plates 301, barrier plates 4 are arranged on the left and right sides of the two connecting plates 301, second corrugated plates 401 are fixedly installed on opposite sides of the four barrier plates 4 in pairs, first springs 5 are fixedly installed on the bottom end faces of the four barrier plates 4, a fixed plate 6 is fixedly installed inside the cylinder body 1, and the bottom ends of the four first springs 5 are fixedly connected with the upper end face of the fixed plate 6, three evenly distributed's spout 7 is seted up to the inside wall of barrel 1, and the equal sliding connection in inside of three spout 7 has slider 701, the equal fixedly connected with connecting rod 801 of the relative one side of three slider 701, and the relative one end of three connecting rod 801 has disc 8 through pivot swing joint, and disc 8's bottom face fixed mounting has cushion 803, and cushion 803 fixed mounting is in the inside bottom face of barrel 1.

In this embodiment: by extending the press rod 2 to the outside of the cylinder 1, when the upper end of the press rod 2 receives a small external impact force, the sliding plug 3 and the two connecting plates 301 move downwards to make the four first corrugated plates 302 contact with the four second corrugated plates 401, and further press the four barrier plates 4 downwards to deform the four first springs 5 in a compression manner, so that the four first springs 5 prevent the four barrier plates 4 and the sliding plug 3 from moving downwards, and the impact force received by the press rod 2 plays a role in buffering and damping, thereby having the characteristic of damping a small impact force, when the press rod 2 receives a large external impact force, the downward movement speed of the press rod 2 increases at a high speed, and the received impact force also increases, so that the downward movement of the press rod 2 at a high speed is in contact with the shockproof pad 802, the disc 8 moves downwards, and the disc 8 pulls the three sliders 701 to move downwards when moving downwards, and further compresses the three strong springs 702, the three strong springs 702 slow down a part of the impact force, and at this time, the elastic pad 803 and the shockproof pad 802 cooperate with the three strong springs 702 to generate a larger damping force to prevent the disc 8 and the compression bar 2 from descending and slow down the vibration, so that the effect of providing different damping forces according to different vibration impact forces is achieved, and the practicability of the damper is improved.

As a technical optimization scheme of the utility model, four barrier plates 4 all are the arc form, about four barrier plates 4 two liang of relative one sides of keeping away from respectively with barrel 1's inside wall and depression bar 2's lateral wall sliding connection.

In this embodiment: all be the arc form through setting up four barrier plates 4, four barrier plates 4 of being convenient for slide from top to bottom along the inside wall of barrel 1 and the lateral wall of depression bar 2 respectively.

As a technical optimization scheme of the utility model, the middle part of fixed plate 6 is run through and has been seted up through-hole 601, and through-hole 601 is passed and extend to the below of fixed plate 6 to the bottom of depression bar 2.

In this embodiment: by passing the bottom of the strut 2 through the through-hole 601 and extending below the fixed plate 6, it is facilitated for the disc 8 to provide a damping force to the strut 2 when the impact force is large.

As a technical optimization scheme of the utility model, the equal fixed mounting of inside bottom face of three spout 7 has powerful spring 702, the top of three powerful spring 702 respectively with the bottom face fixed connection of three slider 701.

In this embodiment: by providing three strong springs 702, the damping force generated when the three strong springs 702 are compressed may resist the three sliders 701 from descending.

As a technical optimization scheme of the utility model, two connecting plates 301 all are three horn shapes, and four first buckled plates 302 and four second buckled plates 401 are the rubber material.

In this embodiment: be the rubber material through setting up four first buckled plate 302 and four second buckled plate 401 to increase the frictional force between first buckled plate 302 and the second buckled plate 401, avoid taking place to sideslip.

As a technical optimization scheme of the utility model, the middle part fixed mounting of disc 8 up end has the antivrbration pad 802.

In this embodiment: by providing the crash pad 802, the crash pad 802 dampens the impact and vibration on the compression bar 2.

The utility model discloses a theory of operation and use flow: firstly, when the upper end of the compression bar 2 receives a small external impact force, the sliding plug 3 and the two connecting plates 301 move downwards to make the four first corrugated plates 302 contact with the four second corrugated plates 401, and further press the four blocking plates 4 downwards to deform the four first springs 5 in a compression manner, so that the four first springs 5 block the four blocking plates 4 and the sliding plug 3 to move downwards, and the impact force received by the compression bar 2 plays a role in buffering and damping, thereby having the characteristic of damping a small impact force, when the compression bar 2 receives a large external impact force, the downward movement speed of the compression bar 2 increases rapidly and the received impact force also increases, so that the downward movement of the compression bar 2 at the highest speed contacts with the anti-vibration pad 802, the impact disc 8 moves downwards, and the disc 8 pulls the three sliding blocks 701 to move downwards when moving downwards, thereby compressing the three strong springs 702, the three strong springs 702 slow down a part of impact force, and at the moment, the elastic pad 803 and the shockproof pad 802 are matched with the three strong springs 702 to generate large damping force to prevent the disc 8 and the compression bar 2 from descending and slow down vibration, so that the effect of providing different damping forces according to different vibration impact forces is achieved, the practicability of the damper is improved, and the maintenance cost is reduced.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A friction damper comprising a cylinder (1), characterized in that: the inside mounting of barrel (1) has sliding plug (3), the lateral wall of sliding plug (3) and the inside wall sliding connection of barrel (1), the up end of sliding plug (3) runs through and fixedly connected with depression bar (2), the up end of depression bar (2) extends to the outside of barrel (1), the bottom of depression bar (2) extends to the below of sliding plug (3), the bottom face fixedly connected with of sliding plug (3) has two connecting plates (301) of controlling the distribution, two equal fixed mounting in both sides has first buckled plate (302) about connecting plate (301), two all be provided with barrier plate (4) in both sides about connecting plate (301), four equal fixed mounting has second buckled plate (401) in two double-phase right and left relative one sides of barrier plate (4), four the equal fixed mounting of bottom face of barrier plate (4) has first spring (5), the inside fixed mounting of barrel (1) has fixed plate (6), four the bottom of first spring (5) all with the up end fixed connection of fixed plate (6), three evenly distributed's spout (7), three are seted up to the inside wall of barrel (1) the equal sliding connection in inside of spout (7) has slider (701), three the equal fixedly connected with connecting rod (801) in the relative one side of slider (701), three the relative one end of connecting rod (801) has disc (8) through pivot swing joint, the bottom face fixed mounting of disc (8) has cushion (803), cushion (803) fixed mounting is in the inside bottom face of barrel (1).

2. A friction damper as claimed in claim 1 wherein: four baffle plate (4) all are the arc form, four two liang of opposite one sides of keeping away from about baffle plate (4) respectively with the inside wall of barrel (1) and the lateral wall sliding connection of depression bar (2).

3. A friction damper as claimed in claim 1 wherein: the middle part of the fixed plate (6) is provided with a through hole (601) in a penetrating way, and the bottom of the pressure lever (2) penetrates through the through hole (601) and extends to the lower part of the fixed plate (6).

4. A friction damper as claimed in claim 1 wherein: strong springs (702) are fixedly mounted on the bottom end faces of the three inner portions of the sliding grooves (7), and the top ends of the three strong springs (702) are fixedly connected with the bottom end faces of the three sliding blocks (701) respectively.

5. A friction damper as claimed in claim 1 wherein: two connecting plate (301) all are the triangle-shaped, four first buckled plate (302) and four second buckled plate (401) are the rubber material.

6. A friction damper as claimed in claim 1 wherein: and a shockproof pad (802) is fixedly arranged in the middle of the upper end surface of the disc (8).