CN110173502A - A kind of butterfly instruction washer for examining flange fastener torque peculiar to vessel - Google Patents
A kind of butterfly instruction washer for examining flange fastener torque peculiar to vessel Download PDFInfo
- Publication number
- CN110173502A CN110173502A CN201910298892.0A CN201910298892A CN110173502A CN 110173502 A CN110173502 A CN 110173502A CN 201910298892 A CN201910298892 A CN 201910298892A CN 110173502 A CN110173502 A CN 110173502A
- Authority
- CN
- China
- Prior art keywords
- butterfly
- washer
- gland
- examining
- flange fastener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The butterfly that the invention discloses a kind of for examining flange fastener torque peculiar to vessel indicates washer, including butterfly gasket, the indicating ring being arranged on butterfly gasket, the butterfly gasket includes washer body, butterfly gland and instruction structure, the center of the washer body offers fixation hole, butterfly gland extends along circumferential direction from the lower part of washer body, instruction structure extends along circumferential direction from the end of butterfly gland, and the annular groove that indicating ring is set to card is offered in instruction structure.The present invention can quickly and intuitively detect the Tightening moment of flange fastener by the way that indicating ring is arranged on butterfly gasket, improve site operation efficiency, also eliminate later period checked operation process, improve pipe-line system checkability.
Description
Technical field
The present invention relates to shipbuilding technical fields more particularly to a kind of for examining the butterfly of flange fastener torque peculiar to vessel
Shape indicates washer.
Background technique
Pipeline in ship pipeline system is attached installation usually using flange, according to pipe-line system pressure, temperature, Jie
The corresponding design requirement such as matter installs bolt, nut on flange and (by flange latus rectum peculiar to vessel, spiral shell diameter used is after being fastened
M27~M56mm), there is leakage phenomenon in flange connections in order to prevent, and need the Tightening moment to bolt, nut to be examined,
The Tightening moment of usual fastener should reach 70%~100%N.M of rated moment.
Conventional method is usually the Tightening moment for using torque indicating wrench to examine fastener, to indicate that every deputy thread is tight
Firmware reaches identical, rated moment, it is ensured that the normal use (main purpose: preventing flanged joint from leaking) of pipeline flange.
Torque, which is examined, generally to be carried out after the completion of pipe-line system connects.
Since the pipe fitting arrangement in pipe-line system is intensive, operating space is limited, after the completion of pipe-line system connection, using tradition
It is very inconvenient that torque indicating wrench carries out torque inspection.And after pipeline flange connects under different construction stages, operating condition, although can
To be verified using the secondary fastening method of bolt and nut, but it is (secondary to rely on manual operation that can still have various inconvenience in practice
Fasten that operating condition is poor, easily there is " empty tight " phenomenon after fastening), finally influence test effect.
The factor for influencing test effect mainly has the following:
1, construction space is limited, can not test one by one to each pair of flange after pipe-line system connection；
2, under different construction stages, operating condition, need to using different threaded fastener torque indicating means, (torque instruction is pulled
Secondary fastening of hand, bolt and nut etc.), it is higher to the technical requirements of operator, lack a kind of unification and intuitive torque state
Determination method；
3, pipeline flange installation is carried out by different construction personnel, and is lacked in fastener installation process effectively, intuitively
Measuring means is unable to reach torque requirement after causing threaded fastener to be installed.
Summary of the invention
In view of this, the butterfly that the present invention provides a kind of for examining flange fastener torque peculiar to vessel indicates washer, use
To solve the problems, such as above-mentioned background technique.
A kind of butterfly instruction washer for examining flange fastener torque peculiar to vessel, including butterfly gasket, setting are in butterfly
Indicating ring on washer,
The butterfly gasket includes washer body, butterfly gland and instruction structure, and the center of the washer body offers
Fixation hole, the butterfly gland extend along circumferential direction from the lower part of washer body, and butterfly gland tilts down setting, the finger
Show that structure extends along circumferential direction from the end of butterfly gland, the annular for setting indicating ring to card is offered in instruction structure
Groove.
Preferably, the thickness of the butterfly gland is less than the thickness of instruction structure, radial direction on the circumferencial direction of butterfly gland
Multiple equally distributed reinforcing ribs are provided with, the top of the reinforcing rib and the upper surface of instruction structure are flush.
Preferably, the maximum arc length G between two neighboring reinforcing rib is 2-4 times of washer body thickness.
Preferably, the longitudinal section semicircular in shape of the reinforcing rib.
Preferably, the butterfly gland with a thickness of the 1/2~2/3 of washer body thickness, the thickness and pad of instruction structure
The thickness for enclosing main body is equal.
Preferably, the tilt angle of the butterfly gland is 15 ° -25 °.
Preferably, the longitudinal section of the annular groove is arc-shaped.
Preferably, the indicating ring is the cyclic structure being fabricated to using carbon spring steel.
The beneficial effects of the present invention are:
1, the butterfly instruction gasket construction of the application is simple, easy to use, by the way that indicating ring is arranged on butterfly gasket, leads to
The fracture of indicating ring is crossed to judge whether the Tightening moment of flange threaded fastener peculiar to vessel has reached design requirement, solves pipeline
After system flange is installed under different phase, operating condition, quickly and intuitively the Tightening moment of flange fastener can not be detected
The problem of, site operation efficiency is improved, later period checked operation process is also eliminated, improves pipe-line system checkability.And it is disconnected
Indicating ring after splitting gives over to sample and is retained, the progress that subsequent detection can be facilitated to work.
2, the butterfly instruction washer of the application is fabricated using stamping, impact style, convenient for standardizing batch quickly system
It makes, manufacturing cost is low, and uses simply, conveniently, the staff suitable for different operation level.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the semi-cutaway of butterfly gasket of the present invention.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the top view of butterfly gasket of the present invention.
Fig. 4 be in Fig. 3 A-A to sectional view.
Fig. 5 is B-B direction sectional view in Fig. 3.
Fig. 6 is the front view of indicating ring.
Fig. 7 is the sectional side elevation of indicating ring.
Fig. 8 is that butterfly indicates that the stationary state figure on flange is arranged in washer and bolt.
Fig. 9 is the adjustment state diagram of butterfly instruction washer and bolt centering, adjustment.
Detecting state figure when Figure 10 is 30%N.M of the Tightening moment for fastener rated moment.
Detecting state figure when Figure 11 is 70%N.M of the Tightening moment for fastener rated moment.
Detecting state figure when Figure 12 is 85% (± 5%) N.M of Tightening moment for fastener rated moment.
Figure 13 is the enlarged drawing of part B in Figure 12.
Figure 14 is the schematic diagram made that falls off after indicating ring is broken.
The meaning of figure label are as follows:
1 is butterfly gasket, and 2 be indicating ring, and 3 be washer body, and 4 be butterfly gland, and 5 be instruction structure, and 6 be fixation hole, 7
It is reinforcing rib for annular groove, 8,9 be bolt, and 10 be flange peculiar to vessel, and 11 indicate washer for butterfly.
Specific embodiment
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
The application is described in further detail below by specific embodiment and in conjunction with attached drawing.
In the description of the present application unless specifically defined or limited otherwise, term " first ", " second " are only used for describing
Purpose, be not understood to indicate or imply relative importance；Unless otherwise prescribed or explanation, term " multiple " refer to two
Or it is more than two；Term " connection ", " fixation " etc. shall be understood in a broad sense, can also be with for example, " connection " may be a fixed connection
It is to be detachably connected, or be integrally connected, or be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.
For the ordinary skill in the art, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
In the description of this specification, it is to be understood that "upper", "lower" described in the embodiment of the present application, "left", "right"
The equal nouns of locality are described with angle shown in the drawings, should not be construed as the restriction to the embodiment of the present application.In addition,
In context, it is also necessary to which understanding can not only when mentioning an element and being connected to another element "upper" or "lower"
It is enough connected directly between another element "upper" or "lower", another element "upper" can also be indirectly coupled to by intermediary element
Or "lower".
The embodiment of the present invention provides a kind of butterfly instruction washer for examining flange fastener torque peculiar to vessel, passes through the butterfly
Shape indicates washer, can it is intuitive, easy, quickly detect the pipe-line system flange installed under different phase, different operating conditions
Whether Tightening moment has reached 80%~90%N.M of rated moment.
As shown in Fig. 1-Figure 14, the butterfly for examining flange fastener torque peculiar to vessel indicates that washer includes butterfly pad
Circle 1 and indicating ring 2, indicating ring 2 are arranged on butterfly gasket 1.
The butterfly gasket 1 includes washer body 3, butterfly gland 4 and instruction structure 5.
The center of the washer body 3 offers fixation hole 6.
The butterfly gland 4 extends along circumferential direction from the lower part of washer body 3, and butterfly gland 4 tilts down setting, butterfly
The tilt angle of shape gland 4 is 15 ° -25 °.
The instruction structure 5 extends along circumferential direction from the end of butterfly gland 4, and a use is offered in instruction structure 5
The annular groove 7 of indicating ring 2 is set with card.Indicating ring 2 is the cyclic structure being fabricated to using carbon spring steel, and breaking moment is
The 80%-90%N.M of fastener rated moment, i.e., when the Tightening moment of fastener reaches the 80%-90%N.M of its rated moment
When, the indicating ring on butterfly gasket can be broken.
In the present embodiment, the washer body 3 of butterfly gasket 1 is the plate structure that a centre is provided with circular fixation hole,
Outer diameterMeet the diagonal-size of bolt used on flange peculiar to vessel, nut, internal diameterMeet the diameter of matched flange screw,
Thickness T1 meets specified in GB/T97.1-2002 standard the standard thickness of plain washer A grades or related plain washer peculiar to vessel.The butterfly
Shape gland 4 is the extension of washer body 3, butterfly gland 4 with a thickness of the 1/2~2/3 of 3 thickness of washer body.Instruction knot
Structure 5 is the extension of butterfly gland 4, outer diameterMeet specified in GB/T97.1-2002 standard plain washer A grades or related
The design requirement of plain washer outer diameter peculiar to vessel, the thickness T3 of instruction structure 5 and the thickness T1 of washer body 3 are equal, in instruction structure 5
Annular groove 7 longitudinal section it is arc-shaped, for fixing indicating ring 2, the circular groove diameter of annular groove 7With the line of indicating ring 2
Diameter is identical.
In the present embodiment, the thickness of the butterfly gland 4 is less than the thickness of instruction structure 5, the circumferencial direction of butterfly gland 4
On be arranged radially multiple equally distributed reinforcing ribs 8, the maximum arc length G between two neighboring reinforcing rib is that washer body 3 is thick
2-4 times of degree.The top of the reinforcing rib 8 and the upper surface of instruction structure 5 are flush, the longitudinal section semicircular in shape of reinforcing rib 8,
Its height T4 and width are equal.
For the ease of on-site identification and use, also settable aperture label, torque mark in the washer body 3 of butterfly gasket 1
Note.
Material identical with flange peculiar to vessel can be used in the material of butterfly gasket 1, such as carbon steel (45#, 40CrMo, Q235), no
The materials such as rust steel (3Cr13,1Cr18Ni9Ti), copper (QSi-1) are manufactured.Stamping, one system of punching press can be used in butterfly gasket 1
Type is caused, in the quickly production of standardization batch.
The Tightening moment of flange threaded fastener peculiar to vessel is detected using butterfly described herein instruction washer
Before, it needs the destrabilizing moment to indicating ring 2 to test, i.e., failure test is carried out to indicating ring.Failure test needs will refer to
Show ring 2 to be assembled on butterfly gasket 1 to carry out, by constantly carrying out failure test, to the line footpath of indicating ring 2Size adjusted
It is whole, so that the breaking moment of indicating ring reaches the 80%-90%N.M of fastener rated moment.For different dimensions (spiral shell diameter
For the fastener of M27~M56mm), matched butterfly instruction washer need to be produced.In use, indicating ring 2 uses punching press
Mode and saucer washer 1 are assembled into an entirety, form dish instruction washer.The central diameter of indicating ring 2In annular groove 7
Diameter matches.
The Tightening moment of flange threaded fastener peculiar to vessel is detected using butterfly described herein instruction washer
Specific steps are as follows:
Step 1: choosing butterfly corresponding with the threaded fastener specification and indicate washer；
The threaded fastener includes screw bolt and nut；
Butterfly indicates that washer according to field working conditions, is arranged in unobscured side on flange.
Step 2: bolt 9 being passed through to the flange hole of flange 10 peculiar to vessel, butterfly instruction is installed between bolt 9 and flange peculiar to vessel 10
Washer 11.
Step 3: the position of adjustment bolt 9 and butterfly instruction washer 11 makes the screw rod of bolt be located at the center of flange hole, i.e.,
Ensure that the contact surface of bolt centering, bolt and butterfly instruction washer is smooth.
Step 4: nut (being not drawn into figure) is installed on bolt, and tightens nut, while tightening nut, observation instruction
The crack conditions (operator can judge whether indicating ring is broken by feel and fracture sound) of ring 2, when indicating ring 2 is broken
When, movement is tightened in stopping, showing that the Tightening moment of fastener at this time has reached 80%~90%N.M of its rated moment.
Step 5: flange fastener all tighten after the completion of, operator must review and validate immediately indicating ring 2 whether from
It falls off and (visually indicates) on butterfly gasket 1.
Step 6: when carrying out pipe-line system inspection, it is only necessary to visually observe butterfly instruction washer 11, can differentiate on flange
Whether the Tightening moment of fastener reaches prescribed requirement, verifies one by one without traditional means (torque spanner, secondary fastening),
Greatly simplify inspection process.
The butterfly instruction gasket construction of the application is simple, easy to use, by the way that indicating ring is arranged on butterfly gasket, passes through
The fracture of indicating ring solves pipeline system to judge whether the Tightening moment of flange threaded fastener peculiar to vessel has reached design requirement
After system flange is installed under different phase, operating condition, quickly and intuitively the Tightening moment of flange fastener can not be detected
Problem.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (8)
1. a kind of butterfly for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that including butterfly gasket
(1), the indicating ring (2) being arranged on butterfly gasket (1),
The butterfly gasket (1) includes washer body (3), butterfly gland (4) and instruction structure (5), the washer body (3)
Center offers fixation hole (6), and the butterfly gland (4) extends along circumferential direction from the lower part of washer body (3), butterfly gland
(4) setting is tilted down, the instruction structure (5) extends along circumferential direction from the end of butterfly gland (4), instruction structure (5)
On offer the annular groove (7) that indicating ring (2) are set to card.
2. the butterfly according to claim 1 for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that
The thickness of the butterfly gland (4) is less than the thickness of instruction structure (5), has been arranged radially on the circumferencial direction of butterfly gland (4)
Multiple equally distributed reinforcing ribs (8), the top of the reinforcing rib (8) and the upper surface of instruction structure (5) are flush.
3. the butterfly according to claim 2 for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that
Maximum arc length G between two neighboring reinforcing rib is 2-4 times of washer body (3) thickness.
4. the butterfly according to claim 2 or 3 for examining flange fastener torque peculiar to vessel indicates washer, feature exists
In the longitudinal section semicircular in shape of the reinforcing rib (8).
5. the butterfly according to claim 2 for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that
The butterfly gland (4) with a thickness of the 1/2~2/3 of washer body (3) thickness, the thickness and washer body of instruction structure (5)
(3) thickness is equal.
6. the butterfly according to claim 1 for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that
The tilt angle of the butterfly gland (4) is 15 ° -25 °.
7. the butterfly according to claim 1 for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that
The longitudinal section of the annular groove (7) is arc-shaped.
8. the butterfly according to claim 1 for examining flange fastener torque peculiar to vessel indicates washer, which is characterized in that
The indicating ring (2) is the cyclic structure being fabricated to using carbon spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298892.0A CN110173502B (en) | 2019-04-15 | 2019-04-15 | Butterfly-shaped indicating gasket for testing moment of marine flange fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298892.0A CN110173502B (en) | 2019-04-15 | 2019-04-15 | Butterfly-shaped indicating gasket for testing moment of marine flange fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173502A true CN110173502A (en) | 2019-08-27 |
| CN110173502B CN110173502B (en) | 2021-09-21 |
Family
ID=67689890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910298892.0A Active CN110173502B (en) | 2019-04-15 | 2019-04-15 | Butterfly-shaped indicating gasket for testing moment of marine flange fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110173502B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978761A (en) * | 1975-06-26 | 1976-09-07 | Thomas & Betts Corporation | Fastener assembly |
| US20050058524A1 (en) * | 2001-12-06 | 2005-03-17 | Junkers John K. | Washer, fastener provided with a washer, method of and power tool for fastening objects |
| US20080138167A1 (en) * | 2006-12-12 | 2008-06-12 | Ivan Wayne Wallace | Direct Tension Indicating Washers |
| US20130302106A1 (en) * | 2010-10-29 | 2013-11-14 | Hilti Aktiengesellschaft | Load-indicating washer |
| EP3150865A1 (en) * | 2015-10-01 | 2017-04-05 | Thomas Volborth | Bolt anchored by impact |
-
2019
- 2019-04-15 CN CN201910298892.0A patent/CN110173502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978761A (en) * | 1975-06-26 | 1976-09-07 | Thomas & Betts Corporation | Fastener assembly |
| US20050058524A1 (en) * | 2001-12-06 | 2005-03-17 | Junkers John K. | Washer, fastener provided with a washer, method of and power tool for fastening objects |
| US20080138167A1 (en) * | 2006-12-12 | 2008-06-12 | Ivan Wayne Wallace | Direct Tension Indicating Washers |
| US20130302106A1 (en) * | 2010-10-29 | 2013-11-14 | Hilti Aktiengesellschaft | Load-indicating washer |
| EP3150865A1 (en) * | 2015-10-01 | 2017-04-05 | Thomas Volborth | Bolt anchored by impact |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110173502B (en) | 2021-09-21 |
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