CN211114193U - Reciprocating Sleeve Liquid Particle Damper - Google Patents

Abstract

The utility model discloses a reciprocating sleeve type liquid particle damper, which comprises a damper cavity unit, a cavity provided at the transverse axis of the damper cavity unit, and a piston rod located at both ends of the cavity. The outer side wall of the damper cavity unit is connected with an outer sleeve, the damper cavity unit is provided with a shock-absorbing particle group, and the damper cavity unit is located outside the shock-absorbing particle group. A plurality of liquid storage bins, the plurality of liquid storage bins are filled with shock absorption liquid, and the inner wall of the outer sleeve is installed with an outer ring viscous material; the damper of the utility model can be used in different vibration frequencies. The damper mainly relies on its own weight and the shaking of the internal liquid, viscous materials and springs to consume the vibration energy; in high frequency vibration, the particles in the damper The swarm comes into play, enhancing the damping effect of the dampers.

Description

Reciprocating Sleeve Liquid Particle Damper

technical field

The utility model belongs to the technical field of particle dampers, in particular to a reciprocating sleeve type liquid particle damper.

Background technique

A damper is a device that provides resistance to movement and consumes movement energy. Since the 1970s, people have gradually transferred these technologies to structural engineering such as buildings, bridges, and railways, and their development has been very rapid. In particular, the hydraulic viscous damper with a history of more than 50 years has undergone a large number of experiments, strict examinations, repeated demonstrations, and especially a long process of earthquake testing before it was accepted by the structural engineering community in the United States.

In recent years, with the frequent occurrence of earthquake disasters and the widespread concern of high-rise buildings against wind and earthquakes, the research and application of dampers have also made corresponding progress. Traditional dampers include TMD, TLD and particle dampers, all of which have certain limitations and deficiencies. For example, the onset point of the particle group is relatively high, so that the particle damper can only play a better shock absorption effect under the action of high-intensity earthquakes. In actual situations, small-scale and low-frequency vibrations occur frequently, which will seriously damage the stability of structures and buildings. For this reason, we propose a reciprocating sleeve type liquid particle damper.

Utility model content

The purpose of the present invention is to provide a reciprocating sleeve type liquid particle damper to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a reciprocating sleeve type liquid particle damper, comprising a damper cavity unit and a cavity located at the transverse axis of the damper cavity unit and two The piston rod at the end position, the outer side wall of the damper cavity unit is connected with an outer sleeve, the damper cavity unit is equipped with a shock-absorbing particle group, and the damper cavity unit is located in the damper cavity unit. A plurality of liquid storage bins are opened at the outer position of the shock particle group, and the plurality of liquid storage bins are filled with shock absorption liquid, the inner wall of the outer sleeve is installed with an outer ring of viscous material, and the damper cavity is A slide rail is installed on the outer side wall of the unit, an expansion spring is installed at the end of the piston rod facing the cavity, the end of the piston rod away from the expansion spring is fixedly connected to the structure, and the inner wall of the cavity is connected with the piston rod and the expansion spring. The inner ring viscous material is installed at the corresponding position of the .

Preferably, a slider is slidably connected in the slide rail, and one end of the slider away from the slide rail is fixedly connected to the surface of the outer sleeve.

Preferably, the inside of the piston rod is provided with an opening.

Preferably, the particulate material of the shock-absorbing particle group is any one or more of steel, concrete, glass, limestone, silica gel, and ceramics.

Preferably, the material of the shock absorption liquid can be water, glycerin, oil or alcohol.

Preferably, the material of the outer ring adhesive material 6 includes silica gel or memory alloy.

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

1) In this utility model, the particle groups are arranged in layers, so that the particles can be evenly distributed inside the damper, and carry out multiple collisions and frictions. Compared with the traditional particle damper, the number of collisions between particles is more, The chance of collision is higher.

2) The internal liquid in the present utility model is not limited to a certain part, but is distributed in different parts by the setting of the partition, and the internal liquid can add a certain quality to the damper, so as to play multiple damping in the vibration process. Effect.

3) The damper of the present utility model can play a role in different vibration frequencies, and the parts that mainly play the role of shock absorption are different. When vibrating at low frequencies, the damper mainly relies on its own weight and the shaking of the internal liquid, viscous materials and springs. The energy of the vibration is consumed, and in the high frequency vibration, the particle group in the damper starts to play a role to enhance the damping effect of the damper.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

Fig. 1 is the front sectional view of the utility model;

Fig. 2 is the side sectional view of the utility model;

In the figure: 1, damper cavity unit; 2, outer sleeve; 3, piston rod; 4, slide rail; 5, expansion spring; 6, outer ring viscous material; 7, shock-absorbing particle group; 8, reducing Shock liquid; 9. Viscous material in inner ring; 10. Cavity.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Please refer to FIG. 1 to FIG. 2 , the present utility model provides a technical solution: a reciprocating sleeve type liquid particle damper includes a damper cavity unit 1 and a cavity located at the horizontal axis of the damper cavity unit 1 10 and the piston rod 3 at both ends in the cavity 10, the outer side wall of the damper cavity unit 1 is connected with the outer sleeve 2, and the damper cavity unit 1 is equipped with a shock-absorbing particle group 7, and In the damper cavity unit 1, eight liquid storage bins are opened at the outer position of the shock-absorbing particle group 7, and the eight liquid storage bins are filled with the shock-absorbing liquid 8, and the position of the liquid storage bin is not limited to a certain one. The internal liquid can add a certain mass to the damper, so as to play multiple damping effects during the vibration process. The inner wall of the outer sleeve 2 is installed with an outer ring viscous Material 6, four slide rails 4 are installed on the outer side wall of the damper cavity unit 1, and the four slide rails 4 are arranged in a ring with the center of the damper cavity unit 1 as the center. The end of the slider away from the slide rail 4 is fixedly connected to the surface of the outer sleeve 2, the end of the piston rod 3 facing the cavity 10 is installed with an expansion spring 5, and the end of the piston rod 3 away from the expansion spring 5 is fixedly connected to the structure. , the inner wall of the cavity 10 is provided with an inner ring viscous material 9 at the corresponding position of the piston rod 3 and the expansion spring 5. The damper can play a role in different vibration frequencies. When vibrating at low frequencies, the damper mainly relies on its own The sloshing of the weight and the internal liquid, the viscous material and the expansion spring 5 dissipate the energy of the vibration. In the high frequency vibration, the shock absorbing particle group 7 in the damper starts to play a role to enhance the damping effect of the damper.

In this embodiment, preferably, the inside of the piston rod 3 is provided with an opening, which is convenient to solve the problem of air pressure when the piston rod 3 moves.

In this embodiment, preferably, the particulate material of the shock-absorbing particle group 7 is steel.

In this embodiment, preferably, the material of the damping liquid 8 can be water.

In this embodiment, preferably, the material of the outer ring adhesive material 6 is silica gel.

The working principle and use process of the utility model: when the device is used, the piston rods 3 on both sides are fixed to the structure, and then the slide rail 4 is fixed to the ground through the connecting piece. Under the action of wind or earthquake, the damper The reciprocating motion of the piston rod 3 is realized through the compression and tension of the expansion spring 5, and the outer sleeve 2 is connected with the slide rail 4, so that the transverse reciprocating motion of the damper cavity unit 1 in FIG. 2 is realized. In the reciprocating motion, through the constant friction between the piston rod 3 and the inner ring viscous material 9, the friction between the outer sleeve 2 and the inner ring viscous material 9, and the continuous friction of the damping liquid 8 in the damper cavity unit 1 The vibration, as well as the continuous collision and friction of the shock-absorbing particle group 7, absorb the energy of the seismic wave, so as to achieve the shock-absorbing effect, and the shock-onset point of the small-scale and small-frequency vibration is low, and the shock-off point of the water and steel is low. The characteristics of the damper are different, and the parts that play the role of shock absorption are different. In the low frequency vibration, the damper mainly relies on its own weight and the shaking of the internal liquid, the viscous material and the expansion spring 5 to consume the vibration energy; in the high frequency vibration, the damper consumes the energy of the vibration. The shock-absorbing particle group 7 begins to work, enhancing the shock-absorbing effect of the damper, dissipating the energy of low-frequency vibrations at the lower onset point through a series of oscillations, collisions and friction; Under the action, through the collision between the shock-absorbing particle groups 7 inside the damper cavity unit 1, the friction between the piston rod 3 and the inner ring viscous material 9, and between the outer sleeve 2 and the damper cavity unit 1 The friction of the shock absorber, the continuous oscillation of the shock absorption liquid 8, and the back and forth oscillation of the expansion spring 5 absorb and dissipate the energy of the earthquake.

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

Claims (6)

1. Reciprocating sleeve-type liquid particle damper, including attenuator cavity unit (1) and be located piston rod (3) of the both ends position department of offering cavity (10) and being located cavity (10) in attenuator cavity unit (1) horizontal axis department, its characterized in that: the outer side wall of the damper cavity unit (1) is connected with an outer sleeve (2), a damping particle group (7) is arranged in the damper cavity unit (1), and a plurality of liquid storage bins are arranged at the outer side of the shock absorption particle group (7) in the damper cavity unit (1), shock absorption liquid (8) is filled in the liquid storage bins, the inner wall of the outer sleeve (2) is provided with an outer ring viscous material (6), the outer side wall of the damper cavity unit (1) is provided with a slide rail (4), an expansion spring (5) is arranged at one end of the piston rod (3) facing the cavity (10), one end of the piston rod (3) far away from the expansion spring (5) is fixedly connected with a structure, inner ring viscous materials (9) are arranged on the inner wall of the cavity (10) and the positions corresponding to the piston rod (3) and the expansion spring (5).

2. The reciprocating-sleeve liquid particle dampener of claim 1, wherein: the sliding block is connected in the sliding rail (4) in a sliding mode, and one end, far away from the sliding rail (4), of the sliding block is fixedly connected with the surface of the outer sleeve (2).

3. The reciprocating-sleeve liquid particle dampener of claim 1, wherein: the interior of the piston rod (3) is provided with an opening.

4. The reciprocating-sleeve liquid particle dampener of claim 1, wherein: the particle material of the damping particle group (7) is any one of steel, concrete, glass, limestone, silica gel and ceramics.

5. The reciprocating-sleeve liquid particle dampener of claim 1, wherein: the material of the shock absorption liquid (8) can be water, glycerin, oil or alcohol.

6. The reciprocating-sleeve liquid particle dampener of claim 1, wherein: the outer ring viscous material (6) comprises silica gel or memory alloy.

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