KR20150034387A - Cylindrical vibration control device having high-damping rubber - Google Patents

Abstract

This invention relates to a cylindrical vibration control device designed to dissipate energy with a high-damping rubber damper in addition to elastic deformation of a spring and thus perform vibration damping. The cylindrical vibration control device according to an embodiment of the invention comprises: a first cylinder having a first bolt insertion hole formed inside the first cylinder on the same axis from one end to the other end, a holding protrusion having a first bolt support hole, and a first compression chamber; a first buffer unit located between connectors in the first compression chamber of the first cylinder to absorb compression load through elastic deformation; a first bolt that is inserted through the first bolt insertion hole, is held by the holding protrusion, penetrates the first buffer unit, and is located in the first cylinder; a connector of which one end is screwed to the first bolt and which is inserted into the inside of the first compression chamber to slide and connected with the first buffer; a second cylinder which has a second compression chamber and a second bolt insertion hole connected to each other and is screwed to the other side of the connector; a second bolt that is inserted into the second compression chamber of the second cylinder and passes through the second bolt hole in part; a second buffer unit inserted into the second bolt and located to the second compression chamber to absorb the compression load through elastic deformation; end-joints on left and right sides screwed on the first cylinder and the second bolt, respectively; and a pair of high-damping rubber plate which has a high-damping rubber and of which one end is fixed and supported to the first cylinder and the end joint on each side and the other end is fixed and supported on the second cylinder to dissipate the energy of the earthquake.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cylindrical vibration control device having a high-damping rubber damper,

The present invention relates to a vibration damping device designed to dissipate vibration energy of a building due to wind or earthquake, and more particularly to a vibration damping device which is based on elastic deformation of a spring and additionally causes energy dissipation by a high- The present invention relates to a cylindrical vibration damper.

The structure should be designed to behave completely elastic to the required level of elasticity in the load displacement relationship or to resist the earthquake load with the flexibility due to inelastic behavior. An effective seismic or damping structure can be considered as an effective way to improve the seismic performance of a structure. The damping device absorbs the seismic energy introduced into the structure by the energy dissipation action, thereby reducing the deformation that occurs in the structure. Since the damper dissipates the energy due to the deformation, it is installed in a place where the displacement of the structure is large and it is used for the purpose of increasing the damping. Increasing the damping contributes to the improvement of the livability as well as the effect of the high - rise structure, unlike the seismic equipment which reduces the response by reducing the response such as the displacement and acceleration of the structure by lengthening the period of the structure.

As a background of the present invention, Korean Patent Registration No. 10-1093474 discloses a vibration damper having a damping force according to an amplitude. The piston is divided into a drive chamber on the piston rod side and a drive chamber on the opposite side of the piston rod. The piston rod is rotatably supported on the piston rod side in the drive chamber direction Wherein a separating body for supporting at least a portion of the housing disposed in the housing and dividing the housing into a first drive chamber and a second drive chamber is movably mounted within the housing and the first drive chamber comprises at least one radial connection And the second drive chamber is connected to the drive chamber on the opposite side of the piston rod via a connection channel and at least a portion of the housing is connected to the piston rod through a weld, A vibration damper having a damping force according to the amplitude to be connected All.

However, the above-described background art has the disadvantage that the structure is complicated and the number of components is increased, while the stroke of the piston rod is advantageously made as large as possible.

Korean Patent Registration No. 10-0874406 Korean Patent Laid-Open Publication No. 10-2006-0056387

It is an object of the present invention to provide a cylindrical vibration damping device capable of performing vibration damping based on elastic deformation of a spring and additionally causing energy dissipation by a high damping rubber.

According to a preferred embodiment of the present invention,

A first cylinder having a first bolt insertion hole, a retaining jaw having a first bolt support hole, and a first compression chamber on the same axis from one end to the other end;

First compression means located in the first compression chamber of the first cylinder and disposed between the first compression chamber and the connector for absorbing a compressive load by elastic deformation;

A first bolt inserted through the first bolt insertion hole and supported in the latching jaw and inserted into the first cylinder simultaneously with the first buffering means;

A connector having one end threadably engaged with the first bolt and slidably inserted into an inner surface of the first compression chamber and being in contact with the first buffer means;

A second cylinder connected to the second compression chamber and the second bolt insertion hole communicating with each other and screwed to the other end of the connector;

A second bolt inserted into the second compression chamber of the second cylinder and partly inserting the second bolt insertion hole;

Second shock absorbing means for absorbing a compressive load by being elastically deformed by being inserted into the second bolt and located in the second compression chamber;

Left and right end joints threadedly connected to the first cylinder and the second bolt, respectively;

And at least a pair of high-damping rubber plate modules each having a high-damping rubber, one end of which is fixedly supported on the side of the first cylinder and the end joint side, and the other end is fixed on the side of the second cylinder to dissipate seismic energy.

The first buffering means and the second buffering means are constituted by a plurality of dish springs stacked in the axial direction so as to receive axial loads.

Further, the dish springs are arranged on the same axis line.

Further, each of the first cylinder, the connector, and the second cylinder has a key groove formed on an outer circumferential surface thereof, the key groove being rotatable.

Further, the same bolt clearance is provided between the first bolt and the left end joint and between the first cylinder and the connector.

Further, a brace element is further connected to one of the left and right end joints.

Further, a pair of high-damping rubber plate modules are installed at intervals of 90 degrees or 180 degrees in the circumferential direction.

According to the cylindrical vibration damping device of the present invention, a plurality of disc springs are stacked to absorb a load corresponding to both compression and tension by elastic deformation, and at the same time, the energy absorption efficiency is enhanced by the elastic behavior of the high- .

In addition, it can be formed in a linear shape to have a small volume, and the structure can be simplified and the number of parts can be reduced, thereby reducing manufacturing costs.

In addition, it can be installed in various forms on beams and columns of concrete or steel structure.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
1 is a perspective view of a cylindrical vibration damper according to an embodiment of the present invention;
Figure 2 is a front view of Figure 1;
Fig. 3 is a perspective view of the highly damped rubber plate module applied to Fig. 1; Fig.
FIG. 4A is a perspective view of the body of the cylindrical vibration damper in FIG. 1; FIG.
Figure 4b is a cross-sectional view of Figure 4a.
Figs. 5A and 5B are operational states at the time of compressive load and tensile load in Fig. 4B. Fig.
6 and 7 are various installation views of the cylindrical buffer damping device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

The cylindrical damper 10 according to the embodiment of the present invention includes the first cylinder 12 as shown in Figs. The first cylinder 12 has a circular cross section in the longitudinal direction. The first cylinder 12 has a first bolt insertion hole 121 and a first bolt support hole 122a on the same axis X from one end to the other end of the first cylinder 12, And a compression chamber (123). At this time, the inner diameter of the first bolt insertion hole 121 is larger than the inner diameter of the first bolt support hole 122a. The inner diameter of the first compression chamber 123 is larger than the outer diameter of the small diameter portion 181 of the connector 18 to be described later.

The first cylinder (12) is provided with a first buffer means. The first buffering means is located in the first compression chamber (123), receives the axial load between the engagement protrusion (122) and the connector (18), compresses and resiliently repels it to dissipate the impact energy. The first buffering means may comprise a plurality of first disc springs 14 stacked in the axial direction as in the present embodiment. However, the first buffering means applied to the present invention may be constituted by a coil spring.

The first cylinder (12) is provided with a first bolt (16). The first bolt 16 is inserted through the first bolt insertion hole 121 of the first cylinder 12 and is supported by the engagement protrusion 122 and simultaneously inserted into the first compression chamber 14 123, respectively. In this case, the length of the first bolt 16 is preferably longer than the length of the first compression chamber 123 for connection with the connector 18.

A connector 18 is connected to the first bolt 16. During the vibration damping operation, the connector 18 moves closer to the first cylinder 12 and compresses the first diaphragm spring 14. The connector 18 is screwed into the first bolt 16 through one end of the female screw 181a in the small diameter portion 181 and is slidably inserted into the inner surface of the first compression chamber 123 to form the first buffering means 14 And the male screw 182 is formed at the other end.

The connector 18 is connected to a second cylinder 20 having a circular cross section. The second cylinder 20 is connected to the male screw 182 of the connector 18 through a screw connection. The second cylinder (20) has a second compression chamber (201) and a second bolt insertion hole (202) communicating with each other. The second compression chamber 201 has a circular cross section and its inner diameter is formed larger than the inner diameter of the second bolt insertion hole 202.

The second cylinder 20 is provided with a second bolt 22. The second bolt 22 is inserted into the second compression chamber 201 and a part of the second bolt 22 is screwed into the right end joint 28 through the second bolt insertion hole 202. At this time, the screw diameter of the second bolt 22 is smaller than the inner diameter of the second bolt insertion hole 202 of the second cylinder 20.

The second cylinder (20) is provided with a second buffer means. The second buffering means is inserted into the second bolt 22 and is located in the second compression chamber 201 at the same time. The second buffering means may be constituted by a plurality of second plate springs 24 stacked in the axial direction as in the present embodiment by compression repulsion during the axial load. However, the second buffering means applied to the present invention may be constituted by a coil spring. In the present invention, it is preferable that the first disc spring 14 and the second disc spring 24 are disposed on the same axis line.

Left and right end joints 26 and 28 are connected to the first cylinder 12 and the second bolt 22 by screwing, respectively. The left end joint 26 is screwed to the first bolt insertion hole 121 of the first cylinder 12 with a male screw and the right end joint 28 is screwed to the second bolt 22 with a female screw. However, the present invention is not limited to such a screw connection structure. The left and right end joints 26 and 28 are formed with connection holes 26a and 28a, respectively.

On the other hand, key grooves 12a, 18a, 20a are preferably formed on the outer circumferential surfaces of the first cylinder 12, the connector 18, and the second cylinder 20, respectively. These keyways 12a, 18a, 20a can be used for screwing with neighboring components.

It is also desirable to have the same buffer clearance S between the first bolt 16 and the left end joint 26 and between the first cylinder 12 and the connector 18. [

In addition, any one of the left and right end joints 26 and 28 may be formed by further connecting the brace element 30 as shown in Figs. 7 and 8.

Here, the first and second flat springs 14 and 24 have the same shape and size. In other words, the first and second disc springs 14 and 24 are axially loaded by a circular plate spring having a conical shape. The thickness of the plate is constant and the working load is evenly distributed at the edges of the inner and outer diameters. The first and second flat springs 14 and 24 have a large load capacity in a short space in a short space and have a merit advantage over the coil spring as a buffering means because the scale energy per unit volume is very large as compared with the coil spring. Since the first and second flat springs 14 and 24 are used within an allowable stress range to obtain a long service life and are strong against the impact, they have a high buffering efficiency when they are stacked a plurality of times as in the present embodiment.

On the other hand, the cylindrical vibration damper 10 is configured to dissipate energy by using the high-damping rubber 51 in addition to the first and second flat springs 14 and 24 described above. That is, as shown in Figs. 1 to 3, at least one pair of high-damping rubber plates (not shown), one end of which is fixedly supported on the side of the first cylinder 12 and the end joint 28 side and the other end is fixedly supported on the side of the second cylinder 20 Modules 50a and 50b are installed. The pair of high-damping rubber plate modules 50a and 50b have the same structure as shown in FIG. 3, so that one of the high-damping rubber plate modules 50a and 50b has a high damping rubber 51, A rubber lower support plate 52a and a high damping rubber upper support plate 52b. At this time, the high damping rubber upper support plates 52b and 52b of the high damping rubber plate modules 50a and 50b are fixed to both ends of the fixing plate 21 of the second cylinder 20 by fastening means, 52a and 52a are fixed to the fixing plate 13 on the first cylinder 12 side and the fixing plate 29 on the end joint 28 side. Here, the fastening means can be a bolt and a nut.

In this embodiment, the pair of high-damping rubber plate modules 50a and 50b are provided at two positions at intervals of 180 degrees in the circumferential direction, but they may be provided at four positions at intervals of 90 degrees.

The operation of the cylindrical vibration damper thus constructed will be described.

The cylindrical vibration damping device 10 dissipates energy by absorbing the load (or vibration) in the axial direction by the damping absorption and the elastic behavior of the high-damping rubber. In this case, the action varies depending on the compressive load or the tensile load in the axial direction.

compression Upon load

5A, a compressive load W acts on the left and right end joints 26 and 28 in the direction of the arrow C in FIG. That is, the left and right end joints 26 and 28 are pushed in the direction of approaching each other.

At this time, since the first cylinder 12 and the second cylinder 20 move in a direction approaching each other, the first diaphragm spring 14 positioned in the first compression chamber 123 receives the compressive load. That is, the first disc spring 14 is subjected to a compressive load between the latching protrusion 122 of the first cylinder 12 and the left end of the connector 18. The left end joint 26 and the first cylinder 12 move to the right and the right end joint 28 and the second cylinder 20 and the connector 18 and the first and second bolts 16 and 22 Move to the right.

Accordingly, the first disc spring 14 absorbs the impact energy due to the compressive load, and acts as a buffer.

Since there is no relative movement between the second cylinder 20 and the second bolt 22 during the compression load, there is no compression change of the first diaphragm spring 14 located in the second compression chamber 201.

At the same time, in the high-damping rubber plate module 50a on one side at the time of compression load in FIGS. 1 and 2, the high-damping rubber lower support plate 52a and the high-damping rubber upper support plate 52b move in opposite directions, The rubber 51 deforms in an elastic behavior and dissipates the earthquake energy while absorbing the compressive load.

Seal Upon load

And the tensile load W acts on the left and right end joints 26 and 28 in the direction of the arrow T as shown in FIG. That is, the left and right end joints 26 and 28 are pulled in a direction away from each other.

At this time, since the first cylinder 12 and the second cylinder 20 simultaneously move to the left along the left end joint 26 and the second bolt 22 moves to the right together with the right end joint 28, The second diaphragm spring (24) located in the second compression chamber (201) compresses and receives a tensile load. That is, the second plate spring 24 is contracted between the latching jaw 203 having the second bolt insertion hole 202 of the second cylinder 12 and the head portion of the second bolt 22, do.

At this time, the first bolt 16 and the connector 18 move to the left simultaneously with the end joint 26.

Therefore, the second disk spring 24 absorbs the impact energy corresponding to the tensile load W in the T direction, and thus acts as a buffer.

Since there is no relative movement between the first cylinder 12 and the connector 18 during the tensile load, there is no compression change in the first diaphragm spring 14 located in the first compression chamber 123.

When the vibration is applied to the cylindrical vibration damper 10 in the axial direction, the compressive load and the tensile load alternately act so that the first and second disc springs 14 and 24 absorb the load and impact energy, So that vibration damping is performed.

At the same time, in the high-damping rubber plate module 50b on the other side in the compression load in FIGS. 1 and 2, the high-damping rubber lower support plate 52a and the high-damping rubber upper support plate 52b move in mutually opposite directions, The rubber 51 deforms into an elastic behavior and dissipates the earthquake energy while absorbing the tensile load.

Accordingly, the cylindrical vibration damping apparatus 10 according to the present invention can be installed in various shapes on the beam 1a and the column 2a made of a steel frame, as shown in FIG. 6, to perform vibration damping. In addition, the cylindrical vibration damper 10 can be installed in various shapes on the beam 1b and the column 2b made of iron-concrete as shown in Fig. 7, and can perform vibration damping.

At this time, the brace element 30 may be further connected to either one of the end joints 26 or 28 as shown in FIGS. 6 (B) and 7 (B), depending on the installation mode. The brace element 30 is not limited to a specific shape, but may be, for example, a rod shape made of steel.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

12: First cylinder
14: first plate spring
16: First bolt
18: Connector
20: second cylinder
22: Second bolt
24: Second plate spring
26,28: End joint
30: Brace element
50a, 50b: high damping rubber plate module
51: Highly damped rubber

Claims (7)

A first cylinder 12 having a first bolt inserting hole 121, a retaining step 122 having a first bolt supporting hole 122a and a first compression chamber 123 on the same axis from one end to the other end, ;
First shock absorber means disposed in the first compression chamber (123) of the first cylinder (12) and disposed between the first compression chamber (123) and the connector (18) to absorb a compressive load by elastic deformation;
A first bolt 16 inserted through the first bolt insertion hole 121 and supported in the latching protrusion 122 and simultaneously inserted into the first cylinder 12 through the first buffering means 14;
A connector (18) one end of which is screwed to the first bolt (16) and slidably inserted into the inner surface of the first compression chamber (123) and in contact with the first buffer means;
A second cylinder 20 which communicates with the second compression chamber 201 and the second bolt insertion hole 202 communicating with each other and is screwed to the other end of the connector 18;
A second bolt (22) inserted into the second compression chamber (201) of the second cylinder (20) and partly inserting the second bolt insertion hole (202);
Second damper means inserted in the second bolt (22) and placed in the second compression chamber (201) to absorb a compressive load by elastic deformation;
Left and right end joints (26, 28) threadedly connected to the first cylinder (12) and the second bolt (22), respectively;
At least one pair of high and low damping rubber members 51 having one end fixedly supported on the side of the first cylinder 12 and the end joint 28 side and the other end fixedly supported on the side of the second cylinder 20, And a damping rubber plate module (50a, 50b). The method according to claim 1,
Characterized in that the first buffer means and the second buffer means comprise a plurality of disc springs (14, 24) axially stacked to receive axial loads. 3. The method of claim 2,
Wherein the diaphragm springs (14, 24) are arranged on the same axial line. The method according to claim 1,
Characterized in that key grooves (12a, 18a, 20a) capable of being turned are formed on the outer circumferential surfaces of the first cylinder (12), the connector (18) and the second cylinder (20) Wherein the cylindrical vibration damper is a cylindrical vibration damper. The method according to claim 1,
And has the same shock absorptive clearance S between the first bolt 16 and the left end joint 26 and between the first cylinder 12 and the connector 18. [ Cylinder type vibration damper. The method according to claim 1,
Wherein a brace element (30) is further connected to any one of the left and right end joints (26, 28). The method according to claim 1,
Characterized in that a pair of high-damping rubber plate modules (50a, 50b) are installed at intervals of 90 degrees or 180 degrees in the circumferential direction.

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