KR20160026450A - Clamp Assembly and Connecting Structure of Exhaust Pipes Using Thereof - Google Patents

Clamp Assembly and Connecting Structure of Exhaust Pipes Using Thereof Download PDF

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Publication number
KR20160026450A
KR20160026450A KR1020140115378A KR20140115378A KR20160026450A KR 20160026450 A KR20160026450 A KR 20160026450A KR 1020140115378 A KR1020140115378 A KR 1020140115378A KR 20140115378 A KR20140115378 A KR 20140115378A KR 20160026450 A KR20160026450 A KR 20160026450A
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KR
South Korea
Prior art keywords
clamping frames
flange
hole
female screw
sleeve
Prior art date
Application number
KR1020140115378A
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Korean (ko)
Inventor
강원준
김종석
임채순
이상기
정대열
이정훈
Original Assignee
현대중공업 주식회사
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Priority to KR1020140115378A priority Critical patent/KR20160026450A/en
Publication of KR20160026450A publication Critical patent/KR20160026450A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane

Abstract

The present invention relates to a clamp assembly which can be easily assembled and disassembled, is simple and can be accurately fastened without being distorted, and can sufficiently secure airtightness between two flanges, and an exhaust pipe connecting structure using the same. The clamp assembly according to the present invention is a clamp assembly for axially biasing end faces of two flanges with an inclined face formed on the outer periphery thereof. The clamp assembly includes a pressing inclined face 311 for pressing the outer peripheral inclined face of the flange in the axial direction, First and second clamping frames (310, 320) formed with the first and second clamping members (321, 321); A female screw hole 312 and a through hole 322 formed at both ends of the first and second clamping frames 310 and 320 at the same axial center; The first and second clamping frames 310 and 320 have the same diameter as that of the female screw hole 312 and the through hole 322 while having a larger diameter than the female screw hole 312 and the through hole 322, Insertion holes (314, 324) formed to a certain depth away from the surface; The first and second clamping frames 310 and 320 are inserted through the insertion holes 314 and 324 so that the first and second clamping frames 310 and 320 are engaged with each other to establish a coupling position. A hollow sleeve (340) for guiding the insertion of the fastening means together; A bolt member 330 that screws the first and second clamping frames 310 and 320 through the through hole 322 to the female screw hole 312 after passing through the sleeve 340, .

Description

[0001] The present invention relates to a clamp assembly and an exhaust pipe connecting structure using the clamp assembly and the exhaust pipe connecting structure.

[0001] The present invention relates to a clamp assembly for connecting two clamping frames which are axially offset from each other and then divided into two arc-shaped clamping assemblies, and an exhaust pipe connecting structure using the clamp assembly. The clamp assembly is particularly easy to assemble and disassemble, So that the airtightness between the two flanges can be sufficiently secured.

A conventional example of a clamp used for connecting flanges of two pipe axes in the axial direction by inserting two clamping frames divided into a substantially semicircular circular arc around a flanged portion and fastening them by means of bolts or the like is a patent Are well known including documents 1 to 5.

The clamps described in Patent Literatures 1 to 5 are formed by forming grooves whose width is narrowed radially outward at the inner diameter portion of two divided clamping frames and inclined surfaces corresponding to the grooves of the clamps are formed on the outer periphery of the two flanges, When the two clamping frames are fitted to the outer periphery of the two opposing flanges in the radial direction and then are fastened with fasteners, the grooves of the clamping frame are pressed in the direction in which the both flanges are brought close to each other to fix the two flanges tightly.

However, the clamps described in Patent Documents 1 to 5 are of a type in which two opposing clamping frames are hinged to each other at opposite ends thereof and the opposite ends are fastened with fasteners (Patent Documents 2, 3 and 4) The end portion is formed by engaging the latches and fixing the opposite end portions by fastening the fasteners (Patent Literatures 1 and 5), and it is difficult to give a uniform fastening force over the entire circumference of the flange, so that the possibility of leakage is high.

Further, since it is difficult to sufficiently tighten the clamping force in the radial direction, it is difficult to ensure sufficient airtightness because there is little force to close the two flanges. Therefore, sealing means such as a gasket or the like is additionally used between two flanges.

Further, since the hinge portion, the latch portion and the fastening portion are structured to be easily shaken in the axial direction, the two clamping frames are distorted or shifted after the fastening or fastening, so that it is difficult to provide a uniform fastening force over the entire surface of the flange, .

Since the clamp disclosed in Patent Documents 1 to 5 suffers from the above problems, Applicants et al. Used a clamp in which both opposite ends of two clamping frames are fastened with bolts and pressed.

However, in the process of alternately tightening both bolts, the clamping frame tilts to one side, or the bolt is crooked into the clamping frame causing the thread to wear, or it may be shaken (climbed) by a large force that axially pushes the clamping frame, And the strength is weak against a large shear force acting in the direction perpendicular to the axis.

Particularly, Patent Literatures 1 to 5 are insufficient for connecting large-diameter flanges, and the above-described problem of fastening both sides of a clamp frame with bolts has the above problems. For example, in the cylinder head of a large- It is difficult to apply to the part where the vibration of the engine is applied because the size of the connecting portion is large and requires a large fastening force.

Therefore, as shown in Figs. 1 and 2, a conventional engine exhaust pipe employs a configuration in which a plurality of bolts are fastened in the axial direction with the flange and the flange facing each other.

1 and 2, the main exhaust pipe 20 of the engine is disposed in parallel to the longitudinal direction of the cylinder head 10 of the multi-cylinder engine, and the exhaust port of the cylinder head and the main exhaust pipe 20 are connected to an exhaust manifold 22).

The exhaust manifold 20 has a mounting surface formed on the side surface of the cylinder head 10 and a flange 24 of the exhaust manifold 22 is brought into close contact with the mounting surface of the exhaust manifold 20 and a plurality of bolts 26 are fastened in the axial direction .

This connection structure is accompanied by an inconvenient operation in which a plurality of bolts 26 are fastened and unfastened each time the assembling and repairing are performed. On the other hand, if the gasket is not interposed between the mounting surface of the cylinder head and the flange 24, .

In addition, the bolt must be fastened in the axial direction every time it is assembled and repaired. Since a cooling water pipe (not shown) or various fluid pipes pass through the main exhaust pipe 20 in the vicinity of the axial direction, It will be difficult and time consuming.

Open Patent Publication No. 10-2014-0064256 (May 31, 2014) Open Patent Publication No. 10-2003-0050647 (Jun. 25, 2003) Patent Registration No. 10-1089350 (2011.12.02) Patent Registration No. 10-0652878 (December 1, 2006) Patent Registration No. 10-0392087 (July 18, 2003)

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a clamping device for clamping and fixing both bolts to both sides of two clamping frames divided into arc- It is easy and simple to secure a large clamping force, and after coupling with the two clamping frames, it is possible to precisely guide the clamping and prevent shaking or skewing so that the clamping clamp can be closely contacted with a uniform clamping force, So that the shear strength in the lateral direction can be reinforced.

Another object of the present invention is to provide By connecting the exhaust manifold to the cylinder head by using the clamp assembly as described above, it is possible to reduce the number of work steps for assembling and repairing the exhaust manifold, simplify the work, reduce the work space restriction, And to provide an exhaust pipe connecting structure that ensures excellent airtightness even when the surfaces are brought into close contact with each other.

In order to achieve the above object, a clamp assembly according to the present invention is a clamp assembly for axially returning end faces of two flanges formed with an inclined surface to an outer periphery thereof, and then clamping the outer periphery of the flange, Shaped first and second clamping frames (310, 320) having pressing slopes (311, 321) for pressurization; A female screw hole 312 and a through hole 322 formed at both ends of the first and second clamping frames 310 and 320 at the same axial center; The first and second clamping frames 310 and 320 have the same diameter as that of the female screw hole 312 and the through hole 322 while having a larger diameter than the female screw hole 312 and the through hole 322, Insertion holes (314, 324) formed to a certain depth away from the surface; The first and second clamping frames 310 and 320 are inserted through the insertion holes 314 and 324 so that the first and second clamping frames 310 and 320 are engaged with each other to establish a coupling position. A hollow sleeve (340) for guiding the insertion of the fastening means together; A bolt member 330 that screws the first and second clamping frames 310 and 320 through the through hole 322 to the female screw hole 312 after passing through the sleeve 340, .

In the clamp assembly according to the present invention, the inner diameter of the sleeve 340 is formed with a female screw portion 342 to which the bolt member 330 is screwed, and the bolt member 330 is fixed to the inner surface of the sleeve 340, And then screwed to the female screw hole 312 of the clamping frame in order.

In the clamp assembly according to the present invention, it is preferable that the release grooves 304 which are further radially outwardly of the pressing slopes 311 and 321 are formed in order to avoid interference by maintaining the circumference of the flange to be engaged desirable.

In the clamp assembly according to the present invention, the inclined surfaces 112 and 212 are formed on the outer circumference corresponding to the inclined surfaces 311 and 321 for pressing the first and second clamping frames 310 and 320, And the first and second flanges 100 and 200 for attaching to the end of the pipe or for mounting to the mounting surface may be provided together.

In the clamp assembly according to the present invention, the first clamping frame 310 is provided with a fastening bolt 150 for fastening and fixing to the mounting surface, and the second clamping frame 320 is fitted to the end of the pipe And may have an inner diameter for welding.

The exhaust pipe connecting structure according to the present invention is characterized in that a first flange 100 having an inclined surface 112 formed on an outer periphery thereof is previously mounted on a mounting surface around the outlet of the exhaust port of the cylinder head 10; A second flange 200 having an inclined surface 212 formed on its outer periphery is attached to an end of the exhaust manifold 22; The first and second clamping frames of the clamp assembly according to any one of claims 1 to 4, which axially abut the end faces of the first flange (100) against the end faces of the second flange (200) 310 and 320 are placed on the outer periphery of the first and second flanges 100 and 200 and the bolts 330 and 330 are inserted into the insertion holes 314 and 324 of the clamp across the sleeve 340, Is inserted into the through hole (322), passes through the sleeve (340), and is screwed to the female screw hole (312).

In the exhaust pipe connection structure according to the present invention, a plurality of bolts (150) pass through the first flange (100) in an axial direction and are screwed to a mounting surface around the outlet port of the exhaust port of the cylinder head (10); The second flange 200 is preferably welded to the end of the exhaust manifold 22.

According to the clamp according to the present invention, since a large fastening force can be applied by the structure in which the both ends of the arc-shaped first and second flanges are coupled by the bolt member, it is particularly suitable for use in connection with the exhaust pipe of a marine engine .

Further, since the sleeve can precisely hold the engagement position of the first and second clamping frames and the engagement position of the bolt member by the sleeve, and the sleeve is continuously guided as the bolt member is fastened, Accordingly, the entire perimeter of the first and second flanges is pressed with a uniform force and uniformly adhered uniformly over the entire end surface of the first and second flanges, thereby providing excellent sealing performance.

In this way, uniform and large fastening force can be applied by the structure in which the both ends of the first and second clamping frames are coupled by the bolt member, in addition to the fact that they can be uniformly adhered uniformly over the entire end faces of the first and second flanges , It is possible to precisely connect the first and second flanges without interposing a sealing means such as a gasket or the like between the first flange and the second flange without concern about leakage.

Further, since the sleeve reinforces the shear strength acting in the direction perpendicular to the axis of the bolt member after the fastening is completed, sufficient rigidity can be maintained continuously even where continuous vibration is transmitted as in the engine exhaust pipe, and the first and second clamping frames It is possible to prevent shaking or skewing of the thermoplastic elastomer and thereby maintain excellent sealing conditions for a longer period of time.

When the exhaust pipe is connected to the cylinder head using such a clamp assembly, the first flange is mounted on the mounting surface of the cylinder head before tightening the clamp. Therefore, the exhaust manifold, the main exhaust pipe, It is possible to perform the mounting work without installing the line or the like, so that there is no space restriction on the fastening operation and there is no particular inconvenience.

Further, since the separation operation of the first flange is also performed after the release of the clamp and the removal of the exhaust manifold and the main exhaust pipe in advance, this operation can also be carried out with special difficulty without being restricted by the space or by the surrounding facilities.

Further, in the clamping of the clamp, since the bolt member is fastened not in the axial direction of the exhaust manifold (in the horizontal direction) but in the radial direction (in the vertical direction), the bolt member is fastened to the peripheral structures such as the exhaust manifold and the main exhaust pipe It can be easily assembled and disassembled without being disturbed.

1 is a perspective view showing an example of a configuration in which an exhaust manifold is connected to a cylinder head in a conventional engine.
2 is a side view of Fig.
3 is a side cross-sectional view showing a connection state of a clamp and an exhaust pipe according to the present invention.
4 is an enlarged view of the coupling portion of Fig.
5 is a cross-sectional view taken along line AA in Fig.
6 is an exploded perspective view of a clamp and an exhaust pipe according to the present invention.
7 is a perspective view for explaining a state where the clamp according to the present invention is coupled to the exhaust pipe.
8 is a view as seen from the right side of Fig.

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

3 to 8 show a clamp assembly according to the present invention and a connection structure of an exhaust pipe using the clamp assembly together to facilitate the explanation and to facilitate understanding.

Referring to FIGS. 3 and 4, the two flanges to be connected include a first flange 100 and a second flange 200. On the outer circumference of the first and second flanges 100 and 200, the inclined surfaces 112 and 212 are formed.

The clamp 300 is composed of first and second clamping frames 310 and 320 divided into arcs and the first and second flanges 100 and 320 are formed on the inner circumference of the first and second clamping frames 310 and 320. The pressing slopes 311 and 321 are formed to press the outer circumferential slopes 112 and 212 of the first and second flanges 100 and 200 in the axial direction so as to press the first and second flanges 100 and 200 in the axial direction .

It is preferable to form the release grooves 304 which further enter the radially outer side of the pressing slopes 311 and 321 in order to keep the circumference and spacing of the flanges 100 and 200 to be coupled to avoid interference.

As shown in FIG. 4, when the first and second clamping frames 310 and 320 are tightened, the pressing slopes 311 and 321 press the slopes 112 and 212 of the first and second flanges 100 and 200 The end faces of the first and second flanges 100 and 200 are in close contact with each other.

The clamp 300 is formed of two flanges, namely, a first flange 100 and a second flange 200. The clamp 300 has two flanges, that is, first and second flanges 100 and 200, So as to be tightly coupled.

The clamp assembly may be provided only with the clamp 300 and its fastening elements (e.g., bolts 330, see FIG. 5) or may be provided in the assembly up to the first and second flanges 100, 200 .

The first and second clamping frames 310 and 320 and the first and second flanges 100 and 200 are provided in a single package in the case where the first and second flanges 100 and 200 are provided in the clamp assembly, And is distributed and distributed. Therefore, when connecting the two pipes or connecting the cylinder head mounting surface and the exhaust pipe as in the present invention, the first and second flanges 100 and 200 are taken out from the clamp assembly and fixed to the pipe or cylinder head mounting surface first, 1 and 2 clamping frames 310 and 320 are fastened.

The first flange 100 and the second flange 200 may be of different mounting types or may be of the same mounting type depending on the object to be joined. However, in any case, the slopes 112 and 212 should be equally provided.

For example, as shown in Figs. 3 and 4, when used to connect the exhaust pipe to the cylinder head mounting surface, the first flange 100 is mounted on the mounting surface around the outlet of the exhaust port of the cylinder head 10 And the second flange 200 may be formed by welding the end face of the exhaust manifold 22 to the end face of the exhaust manifold 22 .

Further, when connecting two pipes such as the exhaust manifold 22, the second flange 200 is used instead of the first flange 100 shown in the figure. That is, the two second flanges 200 are disposed in opposite directions to each other, and are welded to each pipe.

When the first and second flanges 100 and 200 and the clamp 300 are used to connect the exhaust pipe to the cylinder head mounting surface as in the present invention, the first flange 100 is connected to the exhaust port of the cylinder head 10, And the second flange 200 is attached to the end of the exhaust manifold 22 by welding. The second flange 200 is attached to the end of the exhaust manifold 22 by welding.

Referring to FIGS. 5 to 8, the first and second clamping frames 310 and 320 are formed in an arc shape smaller than a semicircle so as to maintain a certain degree of clearance even if they are tightened in a direction approaching each other.

As a means for fastening and tightening the first and second clamping frames 310 and 320, both ends of the first and second clamping frames 310 and 320 are provided with a female screw hole 312 and a through hole 322 are formed.

The insertion holes 314 and 324 having a larger diameter than the female screw hole 312 and the through hole 322 and having the same axis as the female screw hole 312 and the through hole 322 are inserted into the first and second clamping frames 310 , 320).

Across the opposed insertion holes 314, 324, a hollow sleeve 340 is inserted. The hollow sleeve 340 firstly engages the first and second clamping frames 310 and 320 to hold the coupling position while matching the axial centers of the female screw hole 312 and the through hole 322, As shown in FIG.

In the embodiment of the present invention, the bolt member 330 is provided as the fastening means.

The bolt member 330 passes through the sleeve 340 through the through hole 322 and is screwed to the female screw hole 312. The first and second clamping frames 310 and 320 are guided by the sleeve 340 so that the first and second clamping frames 310 and 320 are uniformly slid and moved without being skewed or shifted, (100, 200) with a uniform force.

It is also preferable that the female screw portion 342 is formed on the inner diameter of the sleeve 340 so that the bolt member 330 is screwed. When the bolt member 330 is screwed to the inner diameter of the sleeve 340, the sleeve 340 is pulled toward the second clamping frame 320 when the bolt member 330 is fastened, Lt; / RTI > Therefore, even if the sleeve 340 and the insertion hole 324 are constituted by a somewhat interference fit type, the press-fitting can be facilitated.

The first and second clamping frames 310 and 320 can be tightened more precisely by locking the sleeve 340 and the insertion hole 324 in an interference fit manner and more surely prevented from shaking or moving after tightening.

It is preferable that the sleeve 340 is also formed in the insertion hole 314 of the first clamping frame 310 in a somewhat interference fit manner. The first clamping frame 310 is pulled by the fastening force of the bolt member 330 and the female screw hole 312 of the first clamping frame 310 so that a predetermined pressure input can be provided.

Next, a method and an operation of connecting the exhaust pipe to the cylinder head 10 using the clamp 300 according to the present invention will be described.

6 and 7, reference numeral 160 denotes a pilot hole and 170 denotes a pilot pin 170 inserted into the pilot hole 160 to determine a mounting position.

The mounting position of the first flange 100 is determined by inserting the pilot pin 170 into the pilot hole 160 and inserting the pilot pin 170 into the pilot hole formed in the mounting surface of the cylinder head 10.

Then, as shown in FIGS. 3 and 4, the mounting of the first flange 100 is completed by fastening the plurality of bolts 150.

Since the first flange 100 is mounted on the mounting surface of the cylinder head 10 before clamping the clamp 300 in advance, the exhaust manifold 22, the main exhaust pipe 20, The bolt 150 is not restricted by the space and is not inconvenient to the user.

Since the separation operation of the first flange 100 is performed after releasing the clamp 300 and removing the exhaust manifold 22 and the main exhaust pipe 20 in advance, Special difficulties can be accomplished without interference.

The second flange 200 is fitted to the end of the exhaust manifold 22 connected to the main exhaust pipe 20 and then welded around the inner circumferential portion by the weld W (see FIG. 3).

Then, the end face of the second flange 200 is brought into close contact with the end face of the first flange 100, and the clamp 300 is tightened.

The bolt member 330 is fastened to the exhaust manifold 22 in the radial direction (vertical direction) instead of being fastened in the axial direction (in the horizontal direction) of the exhaust manifold 22 in tightening the clamp 300. Therefore, And the main exhaust pipe 20, without being disturbed by the surrounding structure.

3, when the sleeve 340 is formed with the female screw portion 342, the through hole 322 of the second clamping frame 320 is inserted into the through hole 322 of the second clamping frame 320, The sleeve 340 is screwed into the bolt member 330 protruding to the opposite side after the bolt member 330 is inserted into the insertion hole 324 or inserted into the insertion hole 324 as much as possible.

If the sleeve 340 and the insertion hole 324 have a diameter for interference fit, the sleeve 340 is pushed into the insertion hole 324 as the bolt member 330 is rotated.

The end of the bolt member 330 slightly protrudes from the sleeve 340 and the end of the protruded bolt member 330 is inserted into the first clamping frame 330 310).

The sleeve 340 is pressed into the insertion hole 314 of the first clamping frame 310 while the first and second clamping frames 310 and 320 are inserted into the sleeve 340 without any distortion. The fastening of the bolt member 330 can be precisely engaged without being distorted.

The engagement of the first and second clamping frames 310 and 320 is continuously guided by the sleeve 340 without any distortion so that the entire circumference of the first and second flanges 100 and 200 is uniformly applied So that the first and second flanges 100 and 200 are uniformly adhered to each other over the entire end face without gaps.

The first and second clamping frames 310 and 320 can be tightly and uniformly adhered to each other over the entire end face of the first and second flanges 100 and 200 by the bolt member 330 It is possible to provide a precise connection without fear of leakage even if only the inter-metal contact is maintained between the first and second flanges 100 and 200 without the sealing means such as the gasket interposed therebetween.

Next, as another method of fastening the clamp 300, a configuration in which the sleeve 340 is formed with or without the female thread portion 342, or both of the first and second clamping frames It is also possible to insert the sleeve 340 into the insertion holes 314 and 324 of the first and second clamping frames 310 and 320 to align the first and second clamping frames 310 and 320 and then fasten the bolt member 330.

In this case, if the sleeve 340 is of the interference fit type, it is possible to press the first and second clamping frames 310 and 320 by using a special tool, and if not, 310, 320) with both hands.

Thus, when the sleeve 340 is inserted into the insertion holes 314 and 324 of the first and second clamping frames 310 and 320, the first and second clamping frames 310 and 320 are coupled to the correct positions.

In addition, the sleeve 340 is further inserted into the first and second clamping frames 310 and 320 to continuously guide the bolt member 330, thereby enabling precise fastening.

Further, after the fastening is completed, the sleeve 340 reinforces the shearing strength acting in the direction perpendicular to the axis of the bolt member 330, so that sufficient stiffness can be maintained even where continuous vibration is transmitted as in an engine exhaust pipe It is possible to prevent the first and second clamping frames 310 and 320 from being shaken or distorted, thereby maintaining an excellent sealing state for a longer period of time.

The foregoing is a description of certain preferred embodiments of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, .

10: Cylinder head
20; Main exhaust pipe
22: Exhaust manifold
100: 1st flange
112, and 212:
150: Bolt
160: Pilot hole
170: Pilot pin
200: second flange
300: Clamp
304: Release home
310: first clamping frame
311, 321: pressure application inclined surface
312: Female threads
314, 324: insertion hole
320: second clamping frame
322: Through hole
330: Bolt member
340: Sleeve
342: Female threads

Claims (7)

A clamp assembly for axially aligning end faces of two flanges, each having an inclined face formed on an outer periphery thereof,
Shaped first and second clamping frames (310, 320) formed with pressing slopes (311, 321) for pressing the outer peripheral inclined surface of the flange in the axial direction;
A female screw hole 312 and a through hole 322 formed at both ends of the first and second clamping frames 310 and 320 at the same axial center;
The first and second clamping frames 310 and 320 have the same diameter as that of the female screw hole 312 and the through hole 322 while having a larger diameter than the female screw hole 312 and the through hole 322, Insertion holes (314, 324) formed to a certain depth away from the surface;
The first and second clamping frames 310 and 320 are inserted through the insertion holes 314 and 324 so that the first and second clamping frames 310 and 320 are engaged with each other to establish a coupling position. A hollow sleeve (340) for guiding the insertion of the fastening means together; And
A bolt member 330 that screws the first and second clamping frames 310 and 320 through the through hole 322 to the female screw hole 312 after passing through the sleeve 340, ≪ / RTI > The method according to claim 1,
The inner diameter of the sleeve 340 is formed with a female screw portion 342 into which the bolt member 330 is screwed and the bolt member 330 is fixed to the female screw portion 342 of the sleeve 340, Are screwed into holes (312) in order. The method according to claim 1,
And a release groove (304) which is further radially outward of the pressing slopes (311, 321) is formed to maintain interference with the periphery of the flange to be joined, thereby avoiding interference. The method according to claim 1,
The inclined surfaces 112 and 212 are formed on the outer circumference corresponding to the inclined surfaces 311 and 321 for pressing the first and second clamping frames 310 and 320 and closely contact each other at the time of tightening, And a first and second flanges (100, 200) for mounting or mounting on a mounting surface. The method according to claim 1,
The first clamping frame 310 is provided with a fastening bolt 150 for fastening and fixing to the mounting surface,
Wherein the second clamping frame (320) has an inner diameter for welding to fit into the end of the pipe. The first flange 100 on which the inclined surface 112 is formed on the outer periphery is previously mounted on the mounting surface around the outlet of the exhaust port of the cylinder head 10,
A second flange 200 having an inclined surface 212 formed on its outer periphery is attached to an end of the exhaust manifold 22,
The first and second clamping frames of the clamp assembly according to any one of claims 1 to 4, which axially abut the end faces of the first flange (100) against the end faces of the second flange (200) 310 and 320 are placed on the outer periphery of the first and second flanges 100 and 200 and the bolts 330 and 330 are inserted into the insertion holes 314 and 324 of the clamp across the sleeve 340, Is inserted into the through hole (322), passes through the sleeve (340), and is screwed into the female screw hole (312) to join the exhaust pipe connection structure. The method according to claim 6,
A plurality of bolts 150 pass through the first flange 100 in the axial direction and are screwed to the mounting surface around the outlet of the exhaust port of the cylinder head 10,
And the second flange (200) is welded to the end of the exhaust manifold (22).
KR1020140115378A 2014-09-01 2014-09-01 Clamp Assembly and Connecting Structure of Exhaust Pipes Using Thereof KR20160026450A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN106641507A (en) * 2016-11-27 2017-05-10 无锡金顶石油管材配件制造有限公司 Pipe connecting hoop with clamping function
CN110695910A (en) * 2019-10-30 2020-01-17 中船动力有限公司 Tool and method for disassembling and assembling exhaust valve and valve seat of diesel engine
KR102219323B1 (en) * 2019-12-06 2021-02-24 주식회사 에스코알티에스 Fixed structure of spiral wind turbine blade
CN115194676A (en) * 2022-07-26 2022-10-18 重庆长安汽车股份有限公司 Quick positioning and clamping device for process exhaust pipeline
CN115194676B (en) * 2022-07-26 2024-04-30 重庆长安汽车股份有限公司 Quick positioning and clamping device for process exhaust pipeline

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KR100392087B1 (en) 2000-11-28 2003-07-23 현대자동차주식회사 A reinforcement panel of front door hinge in car
KR20030050647A (en) 2001-12-19 2003-06-25 삼성전자주식회사 pipe laying clamp
KR100652878B1 (en) 2005-06-20 2006-12-01 주식회사 디씨피 Clamp structure
KR101089350B1 (en) 2009-10-29 2011-12-02 한성완 Union clamp
KR20140064256A (en) 2012-11-20 2014-05-28 현대중공업 주식회사 Clamp for pipe connection

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CN106641507A (en) * 2016-11-27 2017-05-10 无锡金顶石油管材配件制造有限公司 Pipe connecting hoop with clamping function
CN110695910A (en) * 2019-10-30 2020-01-17 中船动力有限公司 Tool and method for disassembling and assembling exhaust valve and valve seat of diesel engine
CN110695910B (en) * 2019-10-30 2023-11-28 中船动力有限公司 Tool and method for disassembling and assembling exhaust valve and valve seat of diesel engine
KR102219323B1 (en) * 2019-12-06 2021-02-24 주식회사 에스코알티에스 Fixed structure of spiral wind turbine blade
CN115194676A (en) * 2022-07-26 2022-10-18 重庆长安汽车股份有限公司 Quick positioning and clamping device for process exhaust pipeline
CN115194676B (en) * 2022-07-26 2024-04-30 重庆长安汽车股份有限公司 Quick positioning and clamping device for process exhaust pipeline

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