CN111692431A - Destressing installation method of pipe connection quick-release clamp - Google Patents
Destressing installation method of pipe connection quick-release clamp Download PDFInfo
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- CN111692431A CN111692431A CN202010441248.7A CN202010441248A CN111692431A CN 111692431 A CN111692431 A CN 111692431A CN 202010441248 A CN202010441248 A CN 202010441248A CN 111692431 A CN111692431 A CN 111692431A
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- Prior art keywords
- installation
- joint
- destressing
- inspection
- clamp
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Classifications
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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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
Abstract
The application relates to the technical field of aircraft assembly and discloses a destressing installation method for a conduit connection quick release clamp, which solves the problem that a system pipeline generates cracks or leaks oil when in use due to overlarge installation stress in the installation process of the conventional conduit quick release clamp through the steps of inspection before installation, primary destressing installation, secondary destressing installation, final inspection installation and the like.
Description
Technical Field
The application relates to the technical field of aircraft assembly, in particular to a destressing installation method of a conduit connection quick-release clamp.
Background
When an aircraft system pipeline is designed, requirements such as maintainability and operability are considered, and a standard component such as a conduit quick release clamp is often adopted to connect adjacent conduits, so that the installation quality of the conduit quick release clamp plays an important role in the performance and reliability of the aircraft system. The quick-release pipe clamp is characterized in that the clamp locks and clamps the joints, the radial clamping force part is converted into axial tension along the pipe through the V-shaped surfaces contacted with the joints, the joints at two ends are close to each other under the action of the tension and compress the sealing rings in the sealing grooves, and the sealing connection of pipelines is realized.
At present, the quick-release pipe clamp commonly used for airplane system pipelines has three specifications of GJB3821A, HB6521 and HB6535, the quick-release pipe clamp has the advantages of simple structure, quick disassembly and good sealing performance, but also has the defects of rigid connection, overlarge weight and the like, and meanwhile, the sealing of the quick-release pipe clamp plays a sealing role through the end surface deformation of a clamping belt in the quick-release pipe clamp and the elastic deformation generated by the compression of a sealing ring, so that the quick-release pipe clamp has stress in the sealing principle, and the quick-release pipe clamp is very easy to generate the condition of overlarge mounting stress in the mounting process, thereby further causing the problems of cracks, leakage oil and the like.
Disclosure of Invention
In order to overcome the problems and the defects in the prior art, the application provides the destressing installation method of the conduit connection quick release clamp, and the problem that the installation stress of the existing conduit quick release clamp is overlarge in the installation process is solved through the steps of inspection before installation, primary destressing installation, secondary destressing installation, final inspection installation and the like.
In order to achieve the above purpose, the technical solution of the present application is as follows:
a stress-relief mounting method of a conduit connection quick release clamp comprises the following steps:
s1, inspection before installation
S1.1, checking a hoop component: each part is free from damage, chipping and burr and is clean, the clamping band is not twisted or twisted, the welding point is not damaged or cracked, and the bushing and the bolt can flexibly rotate;
s1.2, joint inspection: the sealing surface of the joint is clean and has no scratch, dirt, oil or grease, the joint is welded on a guide pipe or a designated component, and the welding seam has no defects of cracks and the like which influence the use;
s1.3, rubber ring inspection: the surface of the rubber ring has no deformation such as scratch, bending or dent;
s1.4, joint involution inspection: checking whether the catheter joint and the catheter joint with the rubber ring hole are closed and attached tightly, and ensuring that one end of the outer edge of the joint is attached tightly and the gap of the other end is not more than 0.38 mm;
s2, initial stress relief installation
Clamping the hoop component on the closed joint, tightening the nut by using a fixed-force wrench according to 70% of a recommended tightening torque value, checking and confirming that the hoop component is uniformly clamped on the joint along the circumferential direction, tapping the clamping belt by using a mallet, so that the circumferential tension distribution of the clamping belt is more uniform, performing preliminary stress release, and not tapping a welding point during tapping;
s3, secondary destressing installation
On the basis of the step S2, continuously screwing the nut to the recommended screwing torque value, tapping the clamping belt again by using a hammer to ensure that the circumferential tension distribution of the clamping belt is more uniform, simulating the final installation state and releasing stress, wherein the welding point cannot be tapped during tapping;
s4, final inspection installation
And loosening the nut to release the clamp assembly, further releasing the stress at the V-shaped surface where the clamping band is contacted with the joint, and then tightening the nut once to a recommended torque value, so that the installation of the clamp is finished.
Preferably, in the steps S2 and S3, the cassette is struck with a non-metallic hammer.
Preferably, in the steps S2 and S3, the cartridge is tapped from the opposite side of the opposite locking device along the outer circumference of the cartridge.
The beneficial effect of this application:
(1) this application has solved the too big problem of present pipe quick-release clamp installation stress in the installation through inspection before the dress, first destressing installation, secondary destressing installation and examine step such as installation finally. Specifically, in the clamp installation, the mode of adopting repetitious knock and installation carries out the release of adaptive capacity, has avoided producing the problem of crackle or leak the oil impregnate when using because of the system pipeline that the installation stress is too big leads to, simultaneously, also can avoid the cassette to shorten because of the life-span that stress concentration leads to influence the problem of follow-up result of use.
(2) In this application, when strikeing the cassette, adopt nonmetal mallet to strike, the mallet that rubber material or wood material preparation formed for example, nonmetal mallet has certain guard action in metal mallet to the cassette relatively, can guarantee the surface quality in cassette, prevents to be produced unnecessary by fish tail and cassette and warp.
Drawings
FIG. 1 is a schematic illustration of a destressing installation process for a conduit coupling quick release clip;
FIG. 2 is a schematic illustration of the clip assembly peen destressing.
Detailed Description
The present application will be described in further detail with reference to examples, but the embodiments of the present application are not limited thereto.
The embodiment discloses a destressing installation method of a conduit connection quick release clamp, which comprises 4 main steps of inspection before installation, primary destressing installation, secondary destressing installation and final inspection installation, and specifically comprises the following operations:
s1, inspection before installation
S1.1, checking a hoop component: each part is free from damage, chipping and burr and is clean, the clamping band is not twisted or twisted, the welding point is not damaged or cracked, and the bushing and the bolt can flexibly rotate;
s1.2, joint inspection: the sealing surface of the joint is clean and has no scratch, dirt, oil or grease, the joint is welded on a guide pipe or a designated component, and the welding seam has no defects of cracks and the like which influence the use;
s1.3, rubber ring inspection: the surface of the rubber ring has no deformation such as scratch, bending or dent;
s1.4, joint involution inspection: because the joint mutual involution at the two ends of the conduit is crucial to realizing the best working performance of the clamp component, whether the conduit joint and the conduit joint with the rubber ring hole are involuted and adhered or not is checked before the clamp component is installed, and one end of the outer edge of the joint is ensured to be adhered, and the gap between the other end of the outer edge of the joint is not more than 0.38 mm;
s2, initial stress relief installation
Clamping the hoop component on the closed joint, tightening the nut by using a fixed-force wrench according to 70% of a recommended tightening torque value, checking and confirming that the hoop component is uniformly clamped on the joint along the circumferential direction, tapping the clamping belt by using a mallet, so that the circumferential tension distribution of the clamping belt is more uniform, primary stress release is carried out, and a welding point cannot be tapped during tapping;
s3, secondary destressing installation
On the basis of the step S2, after the nut is continuously screwed to the recommended screwing torque value, the clamping belt is tapped again by the hammer so that the circumferential tension distribution of the clamping belt is more uniform, the final installation state is simulated and the stress is released, and similarly, the welding point cannot be tapped during tapping;
s4, final inspection installation
And loosening the nut to release the clamp assembly, further releasing the stress at the V-shaped surface where the clamping band is contacted with the joint, and then tightening the nut once to a recommended torque value, so that the installation of the clamp is finished.
Preferably, in the steps S2 and S3, a non-metal mallet is used to strike the strap, such as a rubber mallet or a wood mallet. If adopt the wooden stick of metal material, when knocking, the dynamics of knocking is not easy to be controlled, consequently, causes the deformation to the cassette easily, and metal wooden stick still can cause the damage to the surface quality of cassette simultaneously, when knocking, the surface of fish tail cassette easily.
Preferably, in the steps S2 and S3, when the cartridge is tapped, the cartridge is tapped from the opposite side to the locking device along the outer circumference of the cartridge.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The foregoing is directed to embodiments of the present invention, which are not limited thereto, and any simple modifications and equivalents thereof according to the technical spirit of the present invention may be made within the scope of the present invention.
Claims (3)
1. A destressing installation method of a conduit connection quick release clamp is characterized by comprising the following steps: the method specifically comprises the following steps:
s1, inspection before installation
S1.1, checking a hoop component: each part is free from damage, chipping and burr and is clean, the clamping band is not twisted or twisted, the welding point is not damaged or cracked, and the bushing and the bolt can flexibly rotate;
s1.2, joint inspection: the sealing surface of the joint is clean and has no scratch, dirt, oil or grease, the joint is welded on a guide pipe or a designated component, and the welding seam has no defects of cracks and the like which influence the use;
s1.3, rubber ring inspection: the surface of the rubber ring has no deformation such as scratch, bending or dent;
s1.4, joint involution inspection: checking whether the catheter joint and the catheter joint with the rubber ring hole are closed and attached tightly, and ensuring that one end of the outer edge of the joint is attached tightly and the gap of the other end is not more than 0.38 mm;
s2, initial stress relief installation
Clamping the hoop component on the closed joint, tightening the nut by using a fixed-force wrench according to 70% of a recommended tightening torque value, checking and confirming that the hoop component is uniformly clamped on the joint along the circumferential direction, tapping the clamping belt by using a mallet, so that the circumferential tension distribution of the clamping belt is more uniform, performing preliminary stress release, and not tapping a welding point during tapping;
s3, secondary destressing installation
On the basis of the step S2, continuously screwing the nut to the recommended screwing torque value, tapping the clamping belt again by using a hammer to ensure that the circumferential tension distribution of the clamping belt is more uniform, simulating the final installation state and releasing stress, wherein the welding point cannot be tapped during tapping;
s4, final inspection installation
And loosening the nut to release the clamp assembly, further releasing the stress at the V-shaped surface where the clamping band is contacted with the joint, and then tightening the nut once to a recommended torque value, so that the installation of the clamp is finished.
2. The method of destressing a conduit coupling quick release clip, according to claim 1, wherein: in the steps S2 and S3, the metal hammer is used to strike the strap.
3. The method of destressing a conduit coupling quick release clip, according to claim 1, wherein: in the steps S2 and S3, the cartridge is tapped from the opposite side of the locking device along the outer circumference of the cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441248.7A CN111692431B (en) | 2020-05-22 | 2020-05-22 | Destressing installation method of pipe connection quick-release clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441248.7A CN111692431B (en) | 2020-05-22 | 2020-05-22 | Destressing installation method of pipe connection quick-release clamp |
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| Publication Number | Publication Date |
|---|---|
| CN111692431A true CN111692431A (en) | 2020-09-22 |
| CN111692431B CN111692431B (en) | 2021-08-03 |
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| CN202010441248.7A Active CN111692431B (en) | 2020-05-22 | 2020-05-22 | Destressing installation method of pipe connection quick-release clamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752008A (en) * | 2021-09-26 | 2021-12-07 | 成都飞机工业（集团）有限责任公司 | Eccentric bushing alignment recovery method based on alignment recovery assembly |
| CN113834596A (en) * | 2021-05-27 | 2021-12-24 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for determining tightening torque value of installation lock of aircraft canopy |
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| CN103133780A (en) * | 2012-12-06 | 2013-06-05 | 上海裕达实业公司 | Satellite cable fixed hoop and manufacturing and installation method thereof |
| CN104631841A (en) * | 2013-11-10 | 2015-05-20 | 无锡新奇特钣金机械有限公司 | Stress releasing device of steel structure frame |
| CN205383368U (en) * | 2016-01-07 | 2016-07-13 | 大连长之琳科技发展有限公司 | Pipe connection quick -release clamp |
| CN205424186U (en) * | 2015-12-12 | 2016-08-03 | 中国航空工业集团公司沈阳飞机设计研究所 | Pipe fastening connection clamp |
| US9951896B2 (en) * | 2014-01-17 | 2018-04-24 | Georg Fischer Central Plastics Llc | Pipe couplers and methods |
| CN108290496A (en) * | 2015-11-30 | 2018-07-17 | 斯堪尼亚商用车有限公司 | Attached peripheral device for tape-like fastening strips band |
| CN108311851A (en) * | 2017-01-14 | 2018-07-24 | 天津鸿翔工程机械有限公司 | A kind of drilling rod processing technology |
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| US4065846A (en) * | 1976-06-14 | 1978-01-03 | Bechtel International Corporation | Process for constructing clamp-welded pipe joint |
| GB9124748D0 (en) * | 1990-11-21 | 1992-01-15 | Harold Michael W | A piggy back pipeline |
| DE19639324C2 (en) * | 1996-09-25 | 1998-12-03 | Daimler Benz Ag | Pipe clamp with a tightening cap screw |
| WO2001084032A1 (en) * | 2000-05-03 | 2001-11-08 | Ben Van Bilderbeek | Clamping well casings |
| US6742957B2 (en) * | 2001-10-30 | 2004-06-01 | Robbins & Myers Energy Systems, L.P. | Method and device for threaded closure of pipelines or vessels |
| US20040056485A1 (en) * | 2002-09-20 | 2004-03-25 | General Electric Company | Integrally formed sheet metal tube flange |
| CN103133780A (en) * | 2012-12-06 | 2013-06-05 | 上海裕达实业公司 | Satellite cable fixed hoop and manufacturing and installation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834596A (en) * | 2021-05-27 | 2021-12-24 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for determining tightening torque value of installation lock of aircraft canopy |
| CN113834596B (en) * | 2021-05-27 | 2023-08-04 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for determining tightening torque value of aircraft cabin cover installation lock |
| CN113752008A (en) * | 2021-09-26 | 2021-12-07 | 成都飞机工业（集团）有限责任公司 | Eccentric bushing alignment recovery method based on alignment recovery assembly |
| CN113752008B (en) * | 2021-09-26 | 2023-06-09 | 成都飞机工业（集团）有限责任公司 | Eccentric bushing alignment recovery method based on alignment recovery assembly |
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| Publication number | Publication date |
|---|---|
| CN111692431B (en) | 2021-08-03 |
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