KR20200109720A - bellows guide apparatus - Google Patents

Abstract

The present invention relates to a bellows guide apparatus. A problem to be solved by the present invention is to provide the bellows guide apparatus preventing damage to a bellows used for pipe connection. The bellows guide apparatus according to one embodiment of the present invention includes: a first clamp coupled to one side flange of the bellows; a second clamp coupled to the other side flange of the bellows; a first full-thread bolt coupled to the first clamp; a second full-thread bolt coupled to the second clamp; a case in which the second full-thread bolt is fixedly coupled, and the first full-thread bolt is slidably coupled; and a buffer member provided in a receiving space of the case and coupled to the first full-thread bolt and sliding the first full-thread bolt within the receiving space when a length of the bellows changes.

Description

Bellows guide apparatus

The present invention relates to a bellows guide device, and relates to a bellows guide device for preventing damage to the bellows used for connection of pipes.

Bellows are devices that connect two pipes, compensate for the tolerance between the pipes, and allow axial movement between the pipes, and are universally applied to various industrial facilities.

In addition, bellows have functions such as axial length change between tubes, angular displacement compensation, vibration absorption, volume compensation, and pressure absorption. That is, when two fixed pipes with fixed positions are connected with bellows, the bellows functions to accommodate a change in the distance between the fixed pipes on both sides, a change in the center line between the shafts, a change in pressure in the pipe, and a volume change resulting therefrom.

1 is a view showing a pump (P) for flowing a utility gas among semiconductor and display manufacturing facilities and a bellows (B) connected to a fixed pipe (T). The bellows B shown in FIG. 1 connects the pump flange PF and the fixed pipe flange TF fixed to the structure.

At this time, the bellows (B) accommodates the vibration of the pump (P) or the pressure change of the utility gas, such as gas supplied from the pump (P) to the fixed pipe (T). If used for a long time, the bellows (B) Fatigue accumulates to cause fatigue failure, and the center line of the fixed pipe (T) and the pump (P) is inconsistent due to the maintenance of the structure or the occurrence of vibration, and the bellows (B) is later torn, resulting in fluid leakage. It can also occur.

In addition, as the position of the fixed pipe (T) changes due to the thermal expansion of the pipe in the industrial facility, the length between the fixed pipe (T) and the pump (P) changes, and accordingly, the bellows (B) repeatedly contracts and expands. Therefore, fatigue failure may occur.

In particular, when these bellows (B) are used in semiconductor and display manufacturing facilities, serious contamination and personal injury may occur depending on the fluid used, and the operation of the entire system may be stopped.

Therefore, in order to solve the above-described problem, the pipes are supported so as to assist the change in the axial length of the bellows (B), absorb the vibration of the bellows (B), and match the center line between the pipes connected to the bellows (B), There is a need to develop a device that can prevent the bellows (B) from being damaged.

The problem to be solved by the present invention is to provide a bellows guide device that prevents damage to bellows used for connection of pipes.

The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

A bellows guide device according to an embodiment of the present invention for solving the above problem includes a first clamp coupled to one side flange of the bellows; A second clamp coupled to the other flange of the bellows; A first computational bolt coupled to the first clamp; A second computational bolt coupled to the second clamp; A case in which the second computational bolt is fixedly coupled, and the first computational bolt is slidably coupled; And a buffer member provided in the receiving space of the case and coupled to the first computational bolt to slide the first computational bolt within the receiving space when the length of the bellows changes. Includes.

In addition, the case may include: a first case having a through hole through which the first computing bolt passes; And a second case coupled to the first case and fixedly coupled to the second computing bolt. It may include.

In addition, the buffer member, the cap to which the end of the first computer bolt is coupled; An elastic body provided on the outer peripheral surface of the cap; A first spring provided on one side of the cap; And a second spring provided on the other side of the cap. It may include.

In addition, one or more rubber washers may be provided on both sides of the cap.

In addition, a supporter ring provided in the first case, in contact with the first spring, and through which the first computing bolt passes may be further provided.

In addition, the first clamp, the inner clamp is coupled to the one side flange of the bellows, the first computational bolt is coupled; An outer clamp coupled to the inner clamp and clamping the one side flange together with the inner clamp; And a long bolt integrally penetrating the inner clamp and the outer clamp. It may include.

In addition, it may include a guide ring disposed to be spaced apart from one flange of the bellows and coupled to the first clamp and the first computational bolt.

In addition, the guide ring may include a first guide ring forming an outer appearance; And a second guide ring that is rotatably coupled to the first guide ring and forms a spaced part from the first guide ring when coupled to the bellows. It may include.

Details of other embodiments are included in the detailed description and drawings.

According to the bellows guide device according to an embodiment of the present invention, the guide bar 10 firmly supports the bellows (B) coupled to the fixed pipe (T) and the pump (P) to prevent damage to the bellows (B). There will be.

In addition, when the bellows (B) repeatedly contracts and expands, or generates vibration, the first computational bolt 130 and the buffer member 160 accommodates the change in length and vibration caused by the contraction and expansion of the bellows (B) (B) can be prevented from being damaged.

In addition, when a plurality of guide bars 10 are coupled to the bellows (B), the guide ring 20 guides the coupling positions of each guide bar 10 in advance, so that the center line (C2) of each guide bar 10 is The fixed pipe (T) and the pump (P) is formed horizontally with the center line (C1) and prevents the mismatch of the guide bar (10).

In addition, the rubber washer absorbs vibration and noise generated by repeating contact and separation of the first spring 165 or the second spring 167 with the cap 161, thereby suppressing vibration and noise generation.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the description of the claims.

1 is a view showing a bellows connected to a pump and a fixed pipe.
2 is a perspective view of a bellows guide device according to an embodiment of the present invention coupled to a bellows.
3 is a side view of a bellows guide device according to an embodiment of the present invention coupled to a bellows.
4 is a perspective view of a bellows guide device according to an embodiment of the present invention.
5 is an exploded perspective view of a bellows guide device according to an embodiment of the present invention.
6 is a partial cross-sectional view of a bellows guide device according to an embodiment of the present invention.
7 is an operation diagram of a bellows guide device according to an embodiment of the present invention.
8 is an operation diagram of a guide ring according to an embodiment of the present invention.
9 is a partial cross-sectional view of a bellows guide device according to another embodiment of the present invention.

In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Even if the terms are the same, if the displayed parts are different, the reference numerals do not coincide.

In addition, terms to be described later are terms set in consideration of functions in the present invention, and since they may vary according to the intention or custom of operators such as experimenters and measurers, their definitions should be made based on the contents throughout the present specification.

In the present specification, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. The term and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Unless otherwise defined, all terms, including technical and scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

In addition, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals shown in each drawing indicate the same member.

Hereinafter, a bellows guide device according to an embodiment of the present invention will be described with reference to FIGS. 2 to 8.

Figure 2 is a perspective view of a bellows guide device according to an embodiment of the present invention coupled to the bellows, Figure 3 is a side view of the bellows guide device according to an embodiment of the present invention coupled to the bellows, Figure 4 is a view of the present invention It is a perspective view of a bellows guide device according to an embodiment, Figure 5 is an exploded perspective view of the bellows guide device according to an embodiment of the present invention, Figure 6 is a partial cross-sectional view of the bellows guide device according to an embodiment of the present invention, 7 is an operation diagram of a bellows guide device according to an embodiment of the present invention, and FIG. 8 is an operation diagram of a guide ring according to an embodiment of the present invention.

2 to 8, the bellows guide device according to an embodiment of the present invention includes a guide bar 10 supporting a bellows B connecting the fixed pipe T and the pump P, and one or more guides. It includes a guide ring 20 to which the bar 10 is fixed.

The bellows (B) is connected between two fixed tubes as described above in the prior art. To be connected to each pipe, the bellows (B) may be provided with one side flange (BF1) and the other side flange (BF2) to which the pipe is connected at both ends. In FIG. 2, the bellows (B) is described as being connected to the fixed pipe (T) on one side and the pump (P) on the other side, but the embodiment in which the bellows (B) is connected is not limited thereto.

The fixed pipe (T) is a pipe fixed to an industrial facility. The fixing pipe T is provided with a fixing pipe flange TF connected to the bellows B. One side flange BF1 of the bellows B may be connected to the fixed pipe flange TF. One side flange (BF1) may be fixedly coupled to the fixing pipe flange (TF).

The pump P is a device that supplies utility fluids such as gas used in industrial facilities. The utility fluid flows into the fixing tube T. The pump P is provided with a pump flange PF connected to the bellows B. The other side flange BF2 of the bellows B may be connected to the pump flange PF. The other side flange BF2 may be fixedly coupled to the pump flange PF.

The fixed pipe T and the pump P are disposed coaxially. In this case, the fixed pipe flange TF and the pump flange PF may be coaxially arranged so that the center line C1 coincides. However, as described above, as the position of the fixed pipe T is changed due to the thermal expansion of the pipe in the industrial facility, the distance and the position between the fixed pipe T and the pump P change, and thus the fixed pipe flange TF and The spacing between the pump flanges PF may be changed, and the center line C1 of the fixing pipe T and the pump P may be separated from each other without being aligned coaxially.

Here, the guide bar 10 of the present invention supports the bellows B to prevent damage to the bellows B. To this end, the guide bar 10 according to an embodiment of the present invention is coupled to the first clamp 110 coupled to one side flange BF1 of the bellows B, and the other side flange BF2 of the bellows B. The second clamp 120, the first computational bolt 130 coupled to the first clamp 110, the second computational bolt 140 coupled to the second clamp 120, and the second computational bolt 140 are fixed. Combined, the first computational bolt 130 is provided in the case 150 slidably coupled and the receiving space of the case 150 and coupled to the first computational bolt 130, the length of the bellows (B) is changed It includes a buffer member 160 for sliding the first computational bolt 130 in the receiving space.

The first clamp 110 is coupled to one side flange BF1 of the bellows B. The first clamp 110 clamps the fixed pipe flange TF and one side flange BF1. The first clamp 110 securely clamps the fixed pipe flange TF and one side flange BF1 to prevent leakage of utility fluid between the fixed pipe flange TF and one side flange BF1.

The second clamp 120 is coupled to the other flange BF2 of the bellows B. The second clamp 120 clamps the pump flange PF and the other flange BF2. The second clamp 120 securely clamps the pump flange PF and the other flange BF2 to prevent leakage of utility fluid between the pump flange PF and the other flange BF2.

The case 150 forms an exterior. The case 150 may be provided with an accommodation space therein and a buffer member 160 to be described later.

The case 150 may be made of a metal material. The case 150 may be made of an aluminum alloy material. Surface treatment to prevent corrosion may be applied to the surface of the case 150. In this case, aluminum anodizing is performed on the surface of the case 150, so that a film for preventing corrosion may be formed.

The first computational bolt 130 is a bolt processed with a thread on its outer circumferential surface. The first computational bolt 130 is coupled to the first clamp 110. The first computational bolt 130 may be coupled through the first clamp 110.

The first computing bolt 130 penetrates the upper surface of the case 150. The first computational bolt 130 is slidably coupled to the case 150. That is, the first computational bolt 130 is coupled to allow relative motion with respect to the case 150. In this case, the first computational bolt 130 may be coupled to a buffer member 160 to be described later provided in the receiving space of the case 150. This will be described later.

The second computational bolt 140 is a bolt processed with threads on the outer circumferential surface in the same way as the first clamp 110. The second computational bolt 140 is coupled to the second clamp 120. The second computing bolt 140 may be coupled through the second clamp 120.

The second computing bolt 140 is fixedly coupled to the case 150. In this case, the second computing bolt 140 may be fixedly coupled to the bottom surface of the case 150. That is, the second computing bolt 140 is fixed to the case 150 and coupled so as not to move relative to the case 150.

Since the guide bar 10 composed of the above-described components firmly supports the bellows (B) coupled to the fixing pipe (T) and the pump (P), the pump (P) and the fixing pipe (T) by the guide bar (10) ) Of the center line (C1) is aligned on the coaxial, it is possible to prevent damage to the bellows (B).

The first clamp 110 and the second clamp 120 may be implemented in various ways. Hereinafter, since the first clamp 110 has the same structure as the second clamp 120, only the first clamp 110 will be described, and a detailed description of the second clamp 120 will be omitted.

The first clamp 110 according to an embodiment of the present invention is coupled to one flange BF1 of the bellows B, and an inner clamp 113 to which the first computational bolt 130 is coupled, an inner clamp 113 It is coupled to, and includes an outer clamp 111 for clamping one flange BF1 together with the inner clamp 113, and a long bolt 115 integrally penetrating the inner clamp 113 and the outer clamp 111 .

The inner clamp 113 is disposed in the bellows (B) direction. The inner clamp 113 is coupled to one side flange BF1 of the bellows (B). The inner clamp 113 is disposed in the bellows (B) direction and is in contact with one side flange (BF1). When the inner clamp 113 is applied to the second clamp 120, the inner clamp 113 may be disposed in the direction of the other flange BF2.

The outer clamp 111 is disposed in the fixing tube (T) direction. The outer clamp 111 is coupled to the inner flange. The outer clamp 111 is disposed in the direction of the fixing pipe T and is in contact with the fixing pipe flange TF. The outer clamp 111 clamps the fixed pipe flange TF and one side flange BF1 of the bellows B together with the inner clamp 113. When the outer clamp 111 is applied to the second clamp 120, the outer clamp 111 may be disposed in the direction of the pump flange PF.

The first computing bolt 130 may be coupled by integrally penetrating the inner clamp 113 and the outer clamp 111. In the case of an embodiment of the present invention, the first computational bolt 130 is coupled to the inner clamp 113, but the embodiment is not limited thereto. The first computational bolt 130 may pass through the inner clamp 113 and be coupled to the inner clamp 113.

The long bolt 115 integrally penetrates the inner clamp 113 and the outer clamp 111. The long bolt 115 integrally penetrates the inner clamp 113 and the outer clamp 111 to be firmly coupled. Accordingly, the long bolt 115 couples the inner clamp 113 and the outer clamp 111 so that the fixing pipe flange TF and the one side flange BF1 are firmly clamped.

As described above, the second clamp 120 has the same structure as the first clamp 110. The second clamp 120 allows the pump flange PF and the other flange BF2 to be rigidly clamped.

The case 150 may be implemented in various ways. The case 150 according to an embodiment of the present invention is coupled to the first case 151 and the first case 151 in which the through hole 157 through which the first computing bolt 130 passes is formed, It includes a second case 153 to which the computing bolt 140 is fixedly coupled.

The first case 151 has an accommodation space formed therein. The first case 151 is formed by opening the through hole 157. The through hole 157 may be formed on the upper surface of the case 150. In this case, the first computational bolt 130 penetrates through the through hole 157. An end of the first computational bolt 130 may pass through the through hole 157 and be coupled to the buffer member 160 disposed in the receiving space of the first case 151.

The second case 153 forms an accommodation space together with the first case 151. The second case 153 is coupled to the first case 151. The second case 153 may be screwed to the first case 151. Since the screwed second case 153 is detachable from the first case 151, maintenance can be facilitated when the buffer member 160, which will be described later, is used for a long time and is worn.

The second computing bolt 140 is fixedly coupled to the second case 153. The second computing bolt 140 may be coupled to the bottom surface of the second case 153. In this case, a fixing member 155 to which the second computing bolt 140 is coupled may be provided on the bottom of the second case 153. The second computing bolt 140 may be screwed to the fixing member 155.

The buffer member 160 is provided in the receiving space of the case 150. The buffer member 160 is provided to be slidable within the receiving space of the case 150. That is, the buffer member 160 is provided to enable relative movement with respect to the case 150.

The buffer member 160 is coupled to the first computing bolt 130. The end of the first computing bolt 130 passes through the case 150 and is coupled to the buffer member 160. The end of the first computational bolt 130 may be screwed into the coupling groove 162 formed in the buffer member 160.

The bellows (B) may be changed in length as described above. In other words, since the positions of the fixed pipe (T) and the pump (P) are generally fixed, the bellows (B) is usually arranged at a predetermined length, but the fixed pipe is due to the change in the position of the fixed pipe (T) due to thermal expansion in industrial facilities. When the interval between (T) and the pump (P) is temporarily changed, the length of the bellows (B) may be changed.

In this case, the buffer member 160 accommodates a change in the length of the bellows (B). That is, when the length of the bellows B changes, the buffer member 160 slides the first computational bolt 130 in the accommodation space to accommodate the change in the length of the bellows B.

For example, as shown in FIG. 7, when the position of the fixing pipe T is changed while the position of the pump P is fixed, the length of the bellows B increases or decreases, the second computational bolt 140 and the case In the state where the position of 150 is fixed by the second clamp 120, the first computational bolt 130 increases the length of the bellows B together with the first clamp 110 coupled to the fixing pipe T. Or move in a decreasing direction.

In this case, the buffer member 160 and the first computational bolt 130 slide with respect to the case 150 in a direction in which the length of the bellows B changes to accommodate the change in the length of the bellows B. Accordingly, the guide bar 10 firmly supports the bellows (B) so that the fixed pipe (T) and the pump (P) are aligned coaxially, while accepting the change in the length of the bellows (B), the bellows (B) To prevent separation and damage.

In addition, vibration generated by the pump P may be transmitted to the bellows B. In this case, the bellows (B) repeats fine contraction and expansion, and the buffer member 160 and the first computational bolt 130 slightly slide against the case 150 to absorb the contraction and expansion of the bellows (B). Therefore, it is possible to prevent damage due to vibration of the bellows (B).

The buffer member 160 may be implemented in various ways. The buffer member 160 according to an embodiment of the present invention includes a cap 161 to which an end of the first computing bolt 130 is coupled, an elastic body 163 provided on the outer circumferential surface of the cap 161, and a cap 161 And a first spring 165 provided between one side of the first computer bolt 130 and a second spring 167 provided on the other side of the cap 161.

The cap 161 is provided in the receiving space of the case 150. The cap 161 may be formed of a metal material. Preferably, the cap 161 may be formed of an aluminum alloy material.

The end of the first computational bolt 130 is coupled to the cap 161. In the cap 161, a coupling groove 162 having a thread formed on an inner surface thereof may be formed so as to be coupled to the thread of the first computer bolt 130. The end of the first computational bolt 130 may be coupled to the coupling groove 162.

The elastic body 163 is provided on the outer peripheral surface of the cap 161. The elastic body 163 may be coupled to the outer peripheral surface of the cap 161. The elastic body 163 may slide within the receiving space of the case 150. The elastic body 163 may be formed of any one of rubber, plastic, and synthetic resin materials.

Depending on the embodiment, the cap 161 and the elastic body 163 may be implemented integrally. In this case, the cap 161 and the elastic body 163 may be formed as one elastic body 163, and the first computational bolt 130 may be coupled to the elastic body 163 integrally formed.

The first spring 165 may be provided on one side of the cap 161. One side of the cap 161 may be implemented in the direction of the first computing bolt 130. The first spring 165 may be provided in the direction of the first computing bolt 130.

The first spring 165 may be provided inside the first case 151. In this case, the first computational bolt 130 may penetrate the first spring 165. One end of the first spring 165 may contact the cap 161 and the other end may contact the inner surface of the first case 151.

The second spring 167 may be provided on the other side of the cap 161. The other side of the cap 161 may be implemented in the direction of the second computing bolt 140. The second spring 167 may be provided in the direction of the second computing bolt 140. The second spring 167 may be provided inside the second case 153.

As described above, when the length of the bellows B increases or decreases due to a change in the position of the fixing pipe T, the first computational bolt 130 coupled to the fixing pipe T by the first clamp 110 moves. In this case, the first computational bolt 130 moves relative to the case 150 and slides.

That is, when the length of the bellows (B) increases, the first computer bolt 130 is moved upward when referring to FIG. 7, and the cap 161 and the elastic body 163 are connected to the first computer bolt 130 Together they slide upwards. In this case, the first spring 165 is compressed, and the second spring 167 is expanded.

Conversely, when the length of the bellows B decreases, the first computational bolt 130 moves downward, and the cap 161 and the elastic body 163 slide downward together with the first computational bolt 130. In this case, the first spring 165 is expanded and the second spring 167 is compressed.

Accordingly, the first computational bolt 130 and the second computational bolt 140 firmly support the bellows (B) so that the fixing pipe (T) and the pump (P) are aligned coaxially, and the bellows (B) is By accepting the length change, it prevents the bellows (B) from coming off and breaking.

In addition, when the bellows (B) repeats contraction and expansion or receives vibration according to the contraction, the first computational bolt 130 and the buffer member 160 prevents length changes and vibrations due to contraction and expansion of the bellows (B). Can be accommodated.

In the case of an embodiment of the present invention, a supporter ring 170 may be further provided on the case 150. The supporter ring 170 may be provided on the upper surface of the case 150.

Depending on the embodiment, the supporter ring 170 may be provided in the first case 151. The supporter ring 170 may be disposed in the through hole 157 formed in the first case 151. In this case, the first computational bolt 130 may pass through the supporter ring 170.

When the supporter ring 170 is provided in the first case 151, the first spring 165 may contact the bottom surface of the supporter ring 170. In this case, one end of the first spring 165 may contact the cap 161, and the other end may contact the bottom surface of the supporter ring 170.

When the first computational bolt 130 slides with respect to the first case 151, the supporter ring 170 moves the first computational bolt 130 so that the first computational bolt 130 smoothly slides with respect to the first case 151. 130). In this case, while the supporter ring 170 is fixed to the first case 151, the first computational bolt 130 penetrating the supporter ring 170 may slide with respect to the supporter ring 170.

The center line C2 of the guide bar 10 described above should be disposed horizontally with the center line C1 formed by the fixing pipe T and the pump P. If the center line (C2) of the guide bar (10) and the center line (C1) formed by the fixing pipe (T) and the pump (P) are not horizontal, the guide bar 10 is prevented from contracting and expanding the bellows (B). It cannot stably accommodate the length change caused by it.

In this case, the first computational bolt 130 and the buffer member 160 may form a certain angle inside the case 150, and in this state, the first computational bolt 130 and the buffer member 160 are bellows ( If the contraction and expansion of B) are continuously received, uneven wear of the elastic body 163 may occur, and the bellows (B) may be damaged because the guide bar 10 cannot stably accommodate the contraction and expansion of the bellows (B). It may occur.

To this end, the bellows guide device according to an embodiment of the present invention includes a guide ring 20 for guiding the coupling position of the guide bar 10.

The guide bar 10 described above is fixed to the guide ring 20. One or more guide bars 10 may be fixed to the guide ring 20.

The guide ring 20 guides the coupling position of the guide bar 10. That is, the guide ring 20 guides the coupling position of the guide bar 10 so that the center line C2 of the guide bar 10 is horizontal with the center line C1 formed by the fixing pipe T and the pump P. .

In particular, when a plurality of guide bars 10 are coupled to the bellows (B), the guide ring 20 guides the coupling position of each guide bar 10, so that the center line C2 of each guide bar 10 is Make it horizontal with the center line C1 formed by the fixed pipe T and the pump P.

One or more guide rings 20 may be provided. The guide ring 20 according to an embodiment of the present invention includes one guide ring 210 provided in the direction of the fixed pipe flange TF and the other guide ring 220 provided in the direction of the pump flange PF.

One side guide ring 210 is disposed to be spaced apart from one side flange BF1 of the bellows B, and is coupled to the first clamp 110 and the first computational bolt 130. The other guide ring 220 is disposed to be spaced apart from the other flange BF2 of the bellows B, and is coupled to the second clamp 120 and the second computational bolt 140.

Hereinafter, since the other guide ring 220 has the same characteristics as the one guide ring 210, only the one guide ring 210 will be described and detailed description will be omitted, and the one guide ring 210 will be referred to as the guide ring 20. Explain.

The guide ring 20 according to an embodiment of the present invention is disposed to be spaced apart from one flange BF1 of the bellows B, and is coupled to the first clamp 110 and the first computational bolt 130.

The guide ring 20 is disposed around the adjacent flange BF1 of one side of the bellows B. The guide ring 20 is disposed to be spaced apart from one side flange BF1. The guide ring 20 is disposed to surround the outer circumferential surface of one side flange BF1.

The guide ring 20 is coupled to the first clamp 110. The guide ring 20 may be coupled to the first clamp 110 and the first computational bolt 130. In this case, the first computational bolt 130 may integrally penetrate the guide ring 20 and the first clamp 110.

When the first clamp 110 is implemented with the outer clamp 111 and the inner clamp 113, the guide ring 20 may be coupled to the inner clamp 113. The guide ring 20 may be coupled to the inner clamp 113 by a first computer bolt 130. The first computational bolt 130 may be coupled through the guide ring 20 and the inner clamp 113. In this case, the outer clamp 111 is not coupled to the guide ring 20.

8 shows a detachable operation of the guide ring 20 from the upper side of the fixing pipe flange TF. The guide ring 20 is detachable to the bellows (B) in a state in which the guide bar 10 is coupled, so that the guide bar 10 can be easily coupled to the bellows (B) in the field.

To this end, the guide ring 20 according to an embodiment of the present invention is rotatably coupled to the first guide ring 211 and the first guide ring 211 forming an exterior, and is coupled to the bellows (B). It includes a first guide ring 211 and a second guide ring 213 forming the spacer 230.

The first guide ring 211 forms the exterior of the guide ring 20. The first guide ring 211 may be formed to be curved. The first guide ring 211 may be formed in a semicircular shape.

The second guide ring 213 may have the same shape as the first guide ring 211. The second guide ring 213 is rotatably coupled to the first guide ring 211. In this case, the end of the second guide ring 213 is coupled to the end of the first guide ring 211 by a rivet 240, so that the second guide ring 213 is the first guide ring around the rivet 240 It can be called at (211).

When the guide ring 20 is coupled to the bellows (B), the second guide ring 213 forms the first guide ring 211 and the spaced portion 230. That is, when the guide ring 20 is completely coupled to the bellows (B) as shown in the solid line of FIG. 8, the end of the first guide ring 211 is a spaced portion spaced apart from the end of the second guide ring 213 Form 230.

The spacer 230 prevents the ends of the first guide ring 211 and the second guide ring 213 from contacting, so that from the bellows (B) to the first guide ring 211 or the second guide ring 213 Noise is prevented by preventing friction between the first guide ring 211 and the second guide ring 213 by the transmitted vibration.

9 is a partial cross-sectional view of a bellows guide device according to another embodiment of the present invention.

Referring to FIG. 9, at least one rubber washer may be further provided on both sides of the cap 161 according to another embodiment of the present invention. The rubber washer may be provided between the cap 161 and the first spring 165 or the second spring 167. The rubber washer may absorb vibration and noise generated by repeated contact and separation of the first spring 165 or the second spring 167 with the cap 161.

Here, the rubber washer according to an embodiment of the present invention includes a first rubber washer 168 and a second rubber washer 169.

The first rubber washer 168 may be provided between the cap 161 and the first spring 165. A first computational bolt 130 may pass through the first rubber washer 168. In this case, the first computational bolt 130 passes through the first rubber washer 168, and the first spring 165 is supported by the first rubber washer 168.

The second rubber washer 169 may be provided between the cap 161 and the second spring 167. The second spring 167 is supported by the second rubber washer 169.

When there is no additional device to the bellows (B) as in the prior art, the maximum value of the vibration acceleration (vibration measurement index) generated in the bellows (B) was measured to be 126.20㎨, but the bellows guide device according to an embodiment of the present invention When is provided in the bellows (B), the maximum value of the vibration acceleration generated in the bellows (B) was measured as 39.90㎨, resulting in a 68.4% reduction compared to the prior art.

As described above, those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

The scope of the present invention is indicated by the scope of the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. It must be interpreted.

10: guide bar 20: guide ring
P: Pump T: Fixed pipe

Claims (8)

A first clamp coupled to one side flange of the bellows;
A second clamp coupled to the other flange of the bellows;
A first computational bolt coupled to the first clamp;
A second computational bolt coupled to the second clamp;
A case in which the second computational bolt is fixedly coupled, and the first computational bolt is slidably coupled; And
A buffer member provided in the receiving space of the case and coupled to the first computational bolt to slide the first computational bolt within the receiving space when the length of the bellows changes;
Bellows guide device comprising a.
The method of claim 1,
The case,
A first case in which a through hole through which the first computing bolt passes is formed; And
A second case coupled to the first case and fixedly coupled to the second computing bolt;
Bellows guide device comprising a.
The method of claim 2,
The buffer member,
A cap to which an end of the first computational bolt is coupled;
An elastic body provided on the outer peripheral surface of the cap;
A first spring provided on one side of the cap; And
A second spring provided on the other side of the cap;
Bellows guide device comprising a.
The method of claim 3,
Bellows guide device provided with one or more rubber washers on both sides of the cap.
The method of claim 3,
The bellows guide device further includes a supporter ring provided in the first case, in contact with the first spring, and through which the first computing bolt passes.
The method of claim 1,
The first clamp,
An inner clamp coupled to the one side flange of the bellows and to which the first computational bolt is coupled;
An outer clamp coupled to the inner clamp and clamping the one side flange together with the inner clamp; And
A long bolt integrally penetrating the inner clamp and the outer clamp;
Bellows guide device comprising a.
The method of claim 6,
The bellows guide device comprising a guide ring disposed to be spaced apart from one flange of the bellows and coupled to the first clamp and the first computational bolt.
The method of claim 7,
The guide ring,
A first guide ring forming an exterior; And
A second guide ring that is rotatably coupled to the first guide ring and forms a spaced part from the first guide ring when coupled to the bellows;
Bellows guide device comprising a.

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