KR20110087119A - Bearing with laminated coating spacer and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A vibration reducing device, with lamination type coating spacer, and manufacture method thereof are provided to simultaneously perform aperture material and mold functions. CONSTITUTION: A vibration reducing device comprises a spacer(112), a steel sheet(111), and an elastic material(120). A plurality of spacers is laminated to adhere closely to each other in order to form a inner space. A plurality of steel sheets is installed in the inside space. The circumference of the steel sheet is supported along the inner side of spacer. The elastic material is inserted in the inside space by the spacer.

Description

A base isolation device having a laminated covering spacer and a method for manufacturing the same {BEARING WITH LAMINATED COATING SPACER AND MANUFACTURING METHOD THEREOF}

The present invention relates to a seismic isolator and a method for manufacturing the same, and in particular, having a stacked spacer that simultaneously performs the role of a gap material and a mold, complicated and cumbersome equipment and processes for separating the steel sheet and covering the outside thereof are unnecessary. The present invention relates to a seismic isolator having a laminated cover spacer that is easy to produce various effects, and a manufacturing method thereof.

In general, a seismic isolator is installed between an upper structure such as a bridge deck and a lower structure such as a pier supporting the same to secure energy with vertically sufficient rigidity while horizontally providing energy with sufficient deformation capacity and energy dissipation capacity. Will be absorbed.

Such a base isolation device has traditionally consisted of an elastic body obtained by alternately stacking a plurality of rubber plates and steel sheets, and a flange for installing the elastic body on a foundation or a structure.

1 is a longitudinal sectional view for explaining the base isolation device according to the prior art.

As shown, the seismic isolator according to the prior art has an elastic body 10 formed by alternately stacking a plurality of rubber plates 11 and steel sheets 12, and a flange for fixing the elastic body 10 to a foundation or a structure ( 20,30).

Here, looking at the conventional conventional method for manufacturing the elastic body 10 as follows.

First, a plurality of steel sheets 11 and rubber plates 12 are alternately laminated. Then, pressure is applied to the laminated steel sheet 11 and the rubber plate 12 by pressing, and high temperature heat (approximately 120 to 140 ° C.) is applied.

Then, as time passes, the steel sheet 11 and the rubber plate 12 are heated to generate adhesion between the rubber and the steel sheet by a chemical crosslinking reaction of the adhesive applied to the steel sheet. In addition, the rubber plate 12 receives the high temperature heat, and the environment for the vulcanization is formed to change from the fired body to the elastic body 10 suitable for the base isolation device. Here, vulcanization refers to a process in which a crosslinking agent such as sulfur in rubber induces bonding between rubber molecules to increase elasticity and tensile strength. However, it is broadly referred to a series of works to increase mechanical strength by inducing ionic or covalent bonds of rubber molecules through chemical crosslinking reaction. Non-sulfur vulcanization using peroxide and metal oxide, radiation vulcanization and the like can be said.

When the rubber plate 12 is vulcanized and changed from a fired body to an elastic body, and the steel plate 11 and the rubber plate 12 are joined and integrated, a rubber coating is applied to the outer circumferential surface of the elastic body 10 to prevent corrosion of the steel plate 11. Put on. As a result, the elastic body 10 is completed.

However, there have been many problems in the manufacturing method of the elastic body 10 according to the prior art.

In other words, in order to prevent corrosion of the steel sheet had to be accompanied by the work to cover the outer peripheral surface of the elastic body 10, in this case it may be simply attached with a rubber plate to surround the outer peripheral surface of the elastic body 10, but the unvulcanized rubber cross-linking agent can be bonded to each other In the case of co-vulcanization, there is a difficulty, and when the unvulcanized rubber is attached to the vulcanized rubber, the difficulty of adhesion becomes a problem.

Furthermore, in order to have a better coating effect, the outer peripheral surface of the elastic body 10 should be surrounded by a device such as a mold at a slight distance, and the coating material such as rubber is injected into the separation space in a liquid state to wait until it solidifies. In this case, not only the troublesome work but also a problem that requires additional time and equipment.

On the other hand, in the case of an integral type having the same type of rubber laminated between the coating material exposed to the outside and the inner steel sheet in order to secure better seismic performance, the coating material has to be matched to the laminated rubber, so that the variety of colors, flame retardancy and weather resistance There was a problem in that it was not possible to use a coating material having uniform ozone resistance, oil resistance, and weather resistance.

Furthermore, in the case of the integral type, since the internal rubber filling and the outer coating were simultaneously achieved by injecting liquid rubber while supporting a plurality of steel sheets spaced apart, the gap material for supporting the steel sheets apart and at the same time sealing the outside of the steel sheet. Additional equipment, such as molds for enclosing, was required, and the work process that needed to be precise was also cumbersome and difficult.

Accordingly, the present invention has been proposed to solve the conventional problems as described above, and an object of the present invention is to provide a seismic isolator having a laminated cover spacer having a laminated spacer that simultaneously performs the role of the gap material and the mold and its It is to provide a manufacturing method.

In order to achieve the above object, a seismic isolator having a laminated cover spacer according to the technical idea of the present invention includes a spacer which is formed so that a plurality of layers are in close contact with each other and forms a space therein; A plurality of steel plates that are supported around the inner surface of the spacer and are spaced apart from each other in the inner space; It is characterized by the technical configuration that includes an elastic material injected and filled in the inner space by the spacer.

Here, the spacer and the steel sheet may be combined one to one to form a laminated module.

In addition, the groove along which the circumference of the steel sheet is fitted may be formed along the inner surface of the spacer.

In addition, the upper and lower surfaces of the spacer is based on being formed into a flat surface, each of which may be characterized in that the coupling groove and the positioning projection for positioning is coupled to correspond to each other.

In addition, the spacers may be characterized by adding colors distinguishable for each stacked portion.

Alternatively, the material of the spacer may be characterized in that the rubber.

In addition, the elastic material may be characterized in that the rubber that is injected into the liquid phase in the inner space by the spacer is filled and then cured to elastic behavior.

In addition, the inner space of the spacer may be further provided with a lead rod installed to penetrate the steel plate in the vertical direction.

On the other hand, in the manufacturing method of the seismic isolation device having a laminated covering spacer according to the present invention, a plurality of steel sheets are laminated to be spaced apart from each other, the steel sheet is supported by a spacer in the form of a ring coupled along the circumference of the steel sheet Making a step; It is characterized in that the technical configuration comprising the step of curing by injecting a liquid elastic material into the inner space formed by the spacer.

Here, the spacer and the steel sheet may be combined before lamination to form a lamination module.

In addition, it may be characterized by forming a distribution hole in the steel sheet to inject the liquid elastic material.

In addition, the distribution hole of the steel sheet may be formed in the center, it may be characterized in that the lead rod is installed in the inner space of the spacer in a state of passing through the plurality of steel sheet distribution holes.

In addition, the spacer may be characterized by adding color.

The seismic isolator having the laminated cover spacer and the manufacturing method thereof according to the present invention have a stacked spacer that simultaneously performs the role of the gap material and the mold, and are complicated and cumbersome for separating the steel sheet and covering the outside thereof during manufacturing. No equipment and processes are needed.

In addition, the present invention can produce a variety of functions and effects by adding a color to the spacer.

1 is a longitudinal sectional view for explaining the base isolation device according to the prior art.
Fig. 2 is a longitudinal sectional view of a base isolation device having a laminated cover spacer according to the present invention.
3 is a perspective view of a laminated module according to the present invention.
Figure 4 is a longitudinal cross-sectional view of the stacked module according to II 'of FIG.
5A to 5D are a series of reference diagrams for explaining a method for manufacturing a base isolation device using a laminated module.
Figure 6 is a cross-sectional view for explaining the seismic isolation device having a laminated cover spacer of the present invention according to a modified embodiment.
Figure 7 is a reference perspective view for explaining the seismic isolation device having a laminated cover spacer of the present invention according to another modified embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention eliminates the need for complicated and cumbersome equipment and processes for spaced apart the steel sheet during manufacture and covering the outside thereof by the construction having a laminated spacer capable of simultaneously acting as a gap material and a mold.

Hereinafter, the configuration of the present invention will be described in detail.

Figure 2 is a longitudinal sectional view of the seismic isolator according to the present invention, Figure 3 is a perspective view of a laminated module according to the present invention. 4 is a longitudinal cross-sectional view of the stacked module according to II ′ of FIG. 3.

As shown, the seismic isolation device 100-1a of the present invention includes a steel plate 111 and a spacer 112 constituting the laminated module 110, in addition to the elastic material 120 and the flanges 100-2, 100. -3).

First, the spacer 112 simultaneously serves as a mold for trapping the gap material for maintaining the gap of the steel sheet 111 and the elastic material 120 injected into the liquid phase in a stacked state. To this end, the spacer 112 is formed in a ring shape corresponding to the shape of the steel sheet 111 to be coupled along the circumference of the steel sheet 111. For example, when the steel plate 111 is a disc, the spacer 112 is formed of a circular ring, and when the steel plate 111 is a rectangular plate, the spacer 112 is formed of a square ring. The spacer 112 has a fitting groove 112a into which the circumference of the steel sheet 111 is fitted along the inner circumferential surface so as to be closely coupled along the circumference of the steel sheet 111. The spacer 112 may be formed of various kinds of rubber materials capable of simultaneously vulcanizing and bonding the mold to the steel sheet 111, which is a metal. In particular, the material of the spacer 112 may be selected as a kind of material having a function that meets the environment, such as water resistance, ozone resistance, weather resistance, flame retardancy, oil resistance, etc., while satisfying the adhesiveness as described above. .

Here, in order to bond the spacer 112 of rubber material to the steel sheet 111, the steel sheet 111 is first blasted, phosphate coating or chemical etching, as in the usual bonding method of rubber and steel sheet 111. After cleaning and widening the adhesive surface area, apply rubber adhesive and put rubber and steel plate 111 into mold to vulcanize in parallel with adhesion, or lining rubber to apply heat and pressure in auto clave to rubber What is necessary is just to chemically crosslink reaction with and an adhesive agent.

In addition, the spacer 112 is preferably formed in a flat plane on the upper and lower surfaces as shown in the cross-sectional view of Figure 4 so as to be stacked in close contact with each other from the upper side and the lower side.

As such, when the laminated module 110 is mass-produced and prepared by bonding and bonding the steel sheet 111 and the spacer 112 in advance, the seismic isolator can be easily and quickly manufactured without equipment or cumbersome work thereafter. do.

The steel plate 111, in addition to the carbon steel can be used a stainless steel, aluminum, chromium-plated steel plate 111, etc. having a high resistance to corrosion, the shape can be provided in a variety of plate shapes, including a disc shape. Here, the steel sheet 111 is formed with a distribution hole (111a) to inject and distribute the liquid elastic material 120 in the manufacture of the seismic isolator.

When the plurality of spacers 112 are stacked, the elastic member 120 is filled with spaced apart gaps between the steel sheets 111 in the inner space thereof. Before the crosslinking reaction occurs, the elastic material 120 may be cast as a liquid polymer material and behave as a rubbery elastic body after the crosslinking reaction, while crosslinking and bonding to the steel sheet 111 to which the adhesive is applied. If it is rubber, it is good. This kind of rubber is urethane rubber, silicone rubber, polysulfide rubber, liquid EPDM, liquid IR, etc. Among them, it can be selected to be more suitable according to the environment in which the seismic isolator is used.

As described above, if the laminated module 110 is mass-produced and prepared by combining and bonding the steel sheet 111 and the spacer 112 in advance, thereafter, the seismic isolator is easily manufactured without expensive equipment such as mold or cumbersome work. You can do it.

Referring to the accompanying drawings, the manufacturing method of the base isolation device according to the present invention configured as described above in detail as follows. 5A to 5D are a series of drawings for explaining a method of manufacturing a base isolation device using a laminated module.

First, after providing a plurality of laminated module 110 consisting of a combination of the steel plate 111 and the spacer 112, it is omitted in Figure 5a, but a plurality of laminated module 110 on the lower flange 100-3 as shown in Figure 5a Lay out correctly. At this time, an adhesive is applied between the spacers 112 to seal the spacers 112.

Subsequently, when the stacking module 110 is completely stacked as shown in FIG. 5B, the upper and lower plates 131a and 131b0 may be omitted to maintain a predetermined distance between the upper flange 100-2 and the lower flange 100-3, although not shown in the drawing. The support device 131a, 131b, 133 made of a screw 133 is supported.The support device 131a, 131b, 133 can be seen finally installed in Fig. 5c, the laminated module laminated on both upper and lower sides. It is shown that the support 110 is being pressed (the illustration of the flanges 100-2 and 100-3 is omitted for convenience).

Thereafter, as shown in FIG. 5C, the nozzle is inserted through the injection holes 132 of the supporting devices 131a, 131b, and 133 to inject the elastic material 120 into the inner space of the stacked spacer 112. At this time, the injected liquid elastic material 120 is evenly filled in the gap spaced between the steel plates 111 through the distribution hole (111a) in the inner space of the spacer 112. As described above, the elastic material 120 may be selected and used according to the environment in which the base isolation device is used in urethane rubber, silicone rubber, polysulfide rubber, liquid EPDM, liquid IR, and the like.

However, before the injection of the elastic member 120, a lead rod (not shown) may be inserted in advance into the inner space of the spacer 112 to improve the damping performance of the seismic isolation device. At this time, the lead rod is installed in the state penetrating through the distribution hole (111a) of the steel plate (111). The lead rods may be installed before and after the injection of the elastic member 120, but if the lead rod is installed before the injection of the elastic member 120, the gap between the lead rods and the elastic member 120 may be prevented.

Thereafter, the elastic material 120 injected into the liquid rubber as described above has a behavior characteristic as an elastic body having an elasticity by the crosslinking reaction, and bonding occurs stably at the same time as crosslinking with the steel sheet 111. In this process, the screw 133 of the support devices 131a, 131b, and 133 is turned in the state where the injection hole 132 is closed with the cap 135 as shown in FIG. 5D, so that the upper plate 131a and the lower plate 131b may be rotated. While adjusting the spacing can be pressed again to the laminated module (110).

Subsequently, when the elastic member 120 is cured, the support devices 131a, 131b, and 133 are removed and the injection holes of the upper flanges 100-2 and 100-3 are not shown. This is to prevent the cured elastic member 120 from being exposed to the outside, and uses metals having excellent sealing performance, PE, PP, Teflon, or rubber having high corrosion resistance.

As such, the base isolation device according to the present invention can be configured very quickly and easily by stacking the stacking module 110 made of the spacer 112 serving as a gap material and a mold.

Subsequently, an isolating apparatus of the present invention according to a modified embodiment will be described.

6 is a reference cross-sectional view for explaining the seismic isolator of the present invention according to a modified embodiment.

As shown, in the seismic isolator (100-1b) of the present invention according to a modified embodiment positioning positioning projections (212b) and coupling grooves (212c) coupled to the upper and lower surfaces of the spacer 212, respectively, corresponding to each other It is characterized in that it is formed. This enables rapid lamination between the spacers 212 quickly and accurately.

Figure 7 is a reference perspective view for explaining the seismic isolator of the present invention according to another modified embodiment.

As shown, the seismic isolator 100-1c of the present invention according to another modified embodiment is characterized in that the spacers 313a and 313b to be stacked may have different colors for each stacked portion as necessary. .

As such, when the spacers 313a and 313b are configured to have various colors, the teaching apparatus becomes more aesthetic, and various meanings using colors can be transmitted. For example, if the place where the device is installed is dangerous and need warning, the spacer 112 may be configured with a color of red or yellow, and the location where the device is installed may also be displayed in advance by a combination of colors.

In FIG. 7, it can be seen that the spacers 313a and 313b are made of two types each having two colors divided and alternately stacked for each color, but different types or combinations of different colors can be produced.

Although preferred embodiments of the present invention have been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

110: laminated module 111: steel sheet
111a: Distribution hole 112,212,313a, 131b: spacer
112a: fitting groove 120: elastic material
212b: coupling groove 212c: coupling protrusion

Claims (13)

A plurality of spacers stacked in close contact with each other to form a space therein;
A plurality of steel plates that are supported around the inner surface of the spacer and are spaced apart from each other in the inner space;
The seismic isolation device having a laminated cover spacer comprising an elastic material injected into and filled into the inner space by the spacer. The method of claim 1,
The spacer and the steel plate is coupled to one to one seismic isolation apparatus having a laminated cover spacer, characterized in that to form a laminated module. The method of claim 1,
A seismic isolation device having a laminated cover spacer, characterized in that a fitting groove is formed in which a circumference of the steel sheet is fitted along an inner surface of the spacer. The method of claim 1,
The upper surface and the lower surface of the spacer is formed in a flat surface, the seismic isolation device having a laminated cover spacer, characterized in that the coupling groove and the positioning projection for positioning to be coupled to correspond to each other on the upper surface and the lower surface. The method of claim 1,
The spacer is equipped with a laminated covering spacer, characterized in that the color is distinguishable by the stacking portion. The method of claim 1,
A seismic isolation device having a laminated cover spacer, characterized in that the material of the spacer is rubber. The method of claim 1,
The elastic material is a seismic isolator having a laminated cover spacer, characterized in that the rubber is injected into the liquid phase into the inner space by the spacer, and then cured and elastic behavior. The method of claim 1,
A seismic isolation device having a laminated cover spacer further comprising a lead rod installed to penetrate the steel plates in an up and down direction in the inner space of the spacer. In the manufacturing method of the base isolation device,
Stacking a plurality of steel sheets spaced apart from each other, supporting and spaced apart by the ring-shaped spacers coupled along the circumference of the steel sheet;
And a step of injecting and curing the liquid elastic material into the inner space formed by the spacer. 10. The method of claim 9,
And the spacer and the steel sheet are combined before lamination to form a laminated module. 10. The method of claim 9,
And a distribution hole is formed in the steel sheet to inject the liquid elastic material. The method of claim 11,
The distribution hole of the steel sheet is formed in the center, the manufacturing method of the seismic isolation apparatus having a laminated cover spacer, characterized in that the lead rod is installed in the inner space of the spacer in a state of passing through the plurality of steel sheet distribution holes. 10. The method of claim 9,
A method of manufacturing a base isolation device having a laminated cover spacer, wherein the spacer is colored.

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