CN211257388U

CN211257388U - Pressure point semi-active friction composite mass coordination particle damper

Info

Publication number: CN211257388U
Application number: CN201921995886.2U
Authority: CN
Inventors: 李国豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-14
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a composite quality coordinated particle damper of half initiative friction of pressure point, including spiral actuating rod, the spacing fastener of second, first spacing fastener and the shell that excels in, the shell right-hand member welding that excels in has the connecting rod, the inside actuating body, two of having placed of shell that excels in the actuating body has placed the quality wheel between the actuating body inboard, the welding of quality wheel has spherical friction body, and two actuating bodies contact through spherical friction body with the quality wheel, spiral actuating rod passes bearing plate, actuating body, spherical friction body and quality wheel in proper order. The utility model discloses when great earthquake takes place, the earthquake power that produces drives the spiral and makes the pole actuate as, and the spiral makes the vertical actuation that the pole actuated make the quality wheel take place to rotate, takes place to rotate at the quality wheel, places and has viscoelasticity quality to coordinate the granule and give off collision energy consumption in the cavity, simultaneously through external voltage controlling means, the size of controller voltage comes the deformation that the control pressure point was piled with this.

Description

Pressure point semi-active friction composite mass coordination particle damper

Technical Field

The utility model relates to a attenuator technical field specifically is a half initiative friction composite mass of pressure point coordinates granule attenuator.

Background

With the development of the energy dissipation and shock absorption technology of the structure, a large number of dampers are applied to a building structure to improve the shock absorption performance of the structure and achieve the defense goal of 'no damage to middle earthquake and repairable to large earthquake', but at the present stage, friction dampers used in the structure belong to passive energy dissipation dampers which are preset with constant friction force or parameters, the set initial friction force can perform friction sliding under the action of large earthquake and can not slide in small earthquake, and the energy dissipation and shock absorption under the action of small earthquake cannot be realized; on the contrary, when the set force can perform friction sliding under the action of small earthquake, the sliding cannot be performed in medium and large earthquake, and energy dissipation and shock absorption under the action of medium and large earthquake cannot be performed. Therefore, designing a semi-active control damper to perform energy dissipation and shock absorption through the self-adaptation of the control device and the seismic energy is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a half initiative friction composite mass of pressure point coordinates granule attenuator to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pressing point semi-active friction composite mass coordination particle damper comprises a spiral actuating rod, a second limiting clamping piece, a first limiting clamping piece and a high-strength shell, wherein a connecting rod is welded at the right end of the high-strength shell, actuating bodies are placed in the high-strength shell, a mass wheel is placed between the inner sides of the two actuating bodies, a spherical friction body is welded on the mass wheel, the two actuating bodies are in contact with the mass wheel through the spherical friction body, the spiral actuating rod sequentially penetrates through a bearing plate, the actuating bodies, the spherical friction body and the mass wheel, U-shaped clamping grooves are symmetrically welded on the outer sides of the two actuating bodies and the inner sides of the two bearing plates respectively, piezoelectric stacks are placed between the two symmetrically-distributed U-shaped clamping grooves, and the U-shaped clamping grooves welded on the inner sides of the bearing plates and the outer sides of the actuating bodies are in a pulling and knott.

Preferably, a cavity is arranged in the mass wheel, and viscoelastic mass coordinating particles are arranged in the cavity.

Preferably, smooth holes are formed in the pressure bearing plate, the actuating body and the spherical friction body.

Preferably, the bearing plate is welded inside the high-strength casing.

Preferably, a screw thread matched with the screw actuating rod is arranged in the hole of the mass wheel.

Preferably, the high-strength shell is provided with a section of longitudinal sliding groove in the area where the two actuating bodies are located, and the spherical sliding block welded at the end of each actuating body only longitudinally displaces in the longitudinal sliding groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when great earthquake takes place, the earthquake power that produces drives the spiral and acts as actuating rod and actuate, the vertical actuation that the spiral acted as actuating rod to actuate makes the quality wheel take place to rotate, when the quality wheel takes place to rotate, place and have viscoelasticity quality to coordinate the granule and give up the collision power consumption in the cavity, simultaneously through external voltage controlling means, the size of controller voltage controls the deformation of pressure point heap with this, the deformation of piezoelectricity heap can change the action body and weld the contact positive pressure between the spherical friction body on the quality wheel, thereby change the action body and weld the friction force between the spherical friction body on the quality wheel, constitute compound power consumption system, make it make its self-adaptation and seismic energy through half initiative means, the power consumption is more abundant, reach the structure and prevent disaster and reduce the calamity purpose.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the utility model at A;

fig. 3 is a schematic view of the sectional structure of the utility model B.

In the figure: the device comprises a spiral actuating rod 1, a second limiting clamping piece 2, a piezoelectric pile 3, an actuating body 4, an SMA wire 5, a U-shaped clamping groove 6, a spherical friction body 7, elastic mass coordinating particles 8, a mass wheel 9, a cavity 10, a limiting clamping piece 11, a connecting rod 12, a high-strength shell 13, a bearing plate 14, a spherical sliding block 15 and a longitudinal sliding groove 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2, and 3, a pressure point semi-active friction composite mass coordinated particle damper includes: the two ends of the spiral actuating rod 1 are respectively welded with the first limiting clamping piece 2 and the second limiting clamping piece 11, so that the spiral actuating rod 1 is prevented from over-limit actuation; a high-strength shell 13, wherein the right end of the high-strength shell 13 is welded with a connecting rod 12; the actuating body 4 is arranged in the high-strength shell 13, the spherical sliding block 15 is welded on the actuating body 4 to form a whole with the actuating body 4, and the whole formed by the actuating body 4 and the spherical sliding block 15 can longitudinally slide in a longitudinal sliding groove 16 arranged in the high-strength shell 13; a mass wheel 9 is arranged between the inner sides of the two actuating bodies 4, a cavity 10 is arranged in the mass wheel 9, and viscoelastic mass coordination particles 8 are arranged in the cavity 10; the two end surfaces of the mass wheel 9 are welded with spherical friction bodies 7, and the two actuating bodies 4 are contacted with the mass wheel 9 through the spherical friction bodies 7; u-shaped clamping grooves 6 are symmetrically welded on the outer sides of the two actuating bodies 4 and the inner sides of the two bearing plates 14 respectively, piezoelectric stacks 3 are placed between the two symmetrically distributed U-shaped clamping grooves 6, and the U-shaped clamping grooves 6 welded on the inner sides of the bearing plates 14 and the U-shaped clamping grooves 6 welded on the outer sides of the actuating bodies 4 are subjected to drawknot through SMA wires 5; the spiral actuating rod 1 sequentially passes through the bearing plate 14, the actuating body 4, the spherical friction body 7 and the mass wheel 9, wherein a spiral matched with the spiral actuating rod 1 is arranged in a hole of the mass wheel 9, and the mass wheel 9 rotates when the spiral actuating rod 1 longitudinally actuates.

The utility model discloses a theory of operation does: when a medium or large earthquake occurs, the generated earthquake force drives the spiral actuating rod 1 to actuate, the longitudinal actuation of the spiral actuating rod 1 enables the mass wheel 9 to rotate, when the mass wheel 9 rotates, viscoelastic mass coordination particles 8 placed in the cavity 10 release collision energy consumption, meanwhile, the deformation of the pressure point stack 3 is controlled by the size of the controller voltage through an external voltage control device, the deformation of the piezoelectric stack 3 can change the contact positive pressure between the actuating body 4 and the spherical friction body 7 welded on the mass wheel 9, so that the friction force between the actuating body 4 and the spherical friction body 7 welded on the mass wheel 9 is changed, a composite energy consumption system is formed, the composite energy consumption system is enabled to be self-adaptive and earthquake energy consumption through a semi-active means, the energy consumption is more sufficient, and the aims of structural disaster prevention and reduction are achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a half initiative friction composite mass of pressure point coordinates granule attenuator, includes spiral actuating rod (1), the spacing fastener of second (2), first spacing fastener (11) and shell (13) that excels in, its characterized in that: the right end of the high-strength shell (13) is welded with a connecting rod (12), the actuating bodies (4) are arranged in the high-strength shell (13), a mass wheel (9) is arranged between the inner sides of the two actuating bodies (4), the mass wheel (9) is welded with a spherical friction body (7), the two actuating bodies (4) are contacted with the mass wheel (9) through the spherical friction body (7), the spiral actuating rod (1) sequentially passes through the bearing plates (14), the actuating bodies (4), the spherical friction bodies (7) and the mass wheel (9), the outer sides of the two actuating bodies (4) and the inner sides of the two bearing plates (14) are respectively and symmetrically welded with U-shaped clamping grooves (6), a piezoelectric stack (3) is arranged between two U-shaped clamping grooves (6) which are symmetrically distributed, the U-shaped clamping groove (6) welded on the inner side of the pressure bearing plate (14) and the U-shaped clamping groove (6) welded on the outer side of the actuating body (4) are pulled and connected through the SMA wire (5).

2. The pressure point semi-active friction composite mass coordinated particle damper of claim 1, wherein: the mass wheel (9) is provided with a cavity (10), and viscoelastic mass coordinating particles (8) are arranged in the cavity (10).

3. The pressure point semi-active friction composite mass coordinated particle damper of claim 1, wherein: smooth holes are formed in the pressure bearing plate (14), the acting body (4) and the spherical friction body (7).

4. The pressure point semi-active friction composite mass coordinated particle damper of claim 1, wherein: the bearing plate (14) is welded inside the high-strength shell (13).

5. The pressure point semi-active friction composite mass coordinated particle damper of claim 1, wherein: and a screw thread matched with the spiral actuating rod (1) is arranged in a hole of the mass wheel (9).

6. The pressure point semi-active friction composite mass coordinated particle damper of claim 1, wherein: the high-strength shell (13) is provided with a section of longitudinal sliding groove (16) in the area where the two actuating bodies (4) are located, and the spherical sliding block (15) welded at the end part of each actuating body (4) only longitudinally displaces in the longitudinal sliding groove (16).