CN207930249U - Centering tooling for pipeline welding - Google Patents
Centering tooling for pipeline welding Download PDFInfo
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- CN207930249U CN207930249U CN201820186660.7U CN201820186660U CN207930249U CN 207930249 U CN207930249 U CN 207930249U CN 201820186660 U CN201820186660 U CN 201820186660U CN 207930249 U CN207930249 U CN 207930249U
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- pipe collar
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Abstract
The utility model provides a kind of centering tooling for pipeline welding, including the identical pipe collar of two structures, pipe collar include upper half-turn and lower branch, and the both ends of the upper half-turn and the both ends of lower branch are respectively cooperating with connection；Two pipe collars are axially set up in parallel along pipeline, it is connected respectively by multiple connecting plates between two lower branches between two upper half-turns, multiple tapped through holes towards pipe collar center are opened up respectively on the upper and lower half-turn of upper half-turn, adjusting bolt is equipped in tapped through hole, the nut acted against on the outside of half-turn and lower branch is equipped in the adjusting bolt, the centre position of the connecting plate is provided with the tapped through hole towards pipe collar center, it is equipped with positioning bolt in tapped through hole, the lower end of positioning bolt is taper and towards pipe collar center.It is easy that this tooling uses, it is only necessary to according to actually measured centering situation constantly adjust by adjusting bolt；This tooling critical piece is simple in structure, and manufacturing cost is low.
Description
Technical field
The utility model is related to a kind of centering toolings, more particularly to a kind of pipeline that is used for weld centering tooling.
Background technology
It, need to be according to for the centering and welding of liquefied gas carrier liquefied cargo system stainless steel tube《The electric arc of 25817 steel of DIN EN
Welding-inhomogeneities level evaluation standard》(referred to as《EN25817 standards》) in require highest B grade execute.
Conventional method is all adjusted using cucurbit hard draw, and centering is adjusted with the fixed method of joint welding horse plate.According to
《EN25817 standards》It is required that all liquid goods pipeline centerings are all millimetre-sized, i.e. (t is by the offset need≤0.5t of pipeline centering
Pipeline wall thickness), but it is maximum no more than 2mm.It is taken time and effort very much with the adjustment of cucurbit hard draw, centering effect is bad, be easy to cause pair
Middle pipeline generates stress, and most critical is a little that existing cucurbit is all carbon steel material, and according to code requirement, stainless steel is
It cannot directly contact with carbon steel material, be polluted by carbon steel to avoid stainless steel.It is long when ship is at sea runed if Long Term Contact
Time touches seawater, can cause to corrode to stainless steel tube, serious to cause the safety accidents such as cargo leakage, to the matter of shipyard
It measures prestige and generates destructive influences.Therefore the chain or Special-purpose hanger band with stainless steel are had to when with cucurbit hard draw, in this way at
This and site operation management and control are all difficult.Although can very easily be fixed pair using the fixed method of joint welding horse plate after the completion of centering
In as a result, and in Control Welding Process welding deformation；But the fixed method of joint welding horse plate must use spot welding method by joint welding horse
Plate is welded on base material, no matter and increase workload, additional welding job are even more quantity third party big absolutely for the injury of base material
Inspection body proposes the important node of different opinions.In addition, the fixed spot welding work of joint welding horse plate also causes pipeline inner wall and is not having
The nigrescence oxidization condition welded under protective gas, and such case can not be solved thoroughly in subsequent handling.
Although the centering tool that market has can be used, these centering tools all occupy larger space, are not suitable in space
Narrow LEG, LPG, VLGC, LNG ship liquefied cargo system are constructed demand.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of simple to operate, occupy little space, be used for
The centering tooling of pipeline welding, to overcome the defect in the prior art.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution：A kind of pair for pipeline welding
Middle tooling, including the identical pipe collar of two structures, pipe collar include upper half-turn and lower branch, the both ends of the upper half-turn and lower branch
Both ends be respectively cooperating with connection；Two pipe collars are axially set up in parallel along pipeline, between two upper half-turns and two lower branches
Between connected respectively by multiple connecting plates, open up multiple spiral shells towards pipe collar center respectively on the upper upper and lower half-turn of half-turn
Line through-hole is equipped with adjusting bolt in tapped through hole, is equipped with and is acted against on the outside of half-turn and lower branch in the adjusting bolt
Nut, the centre position of the connecting plate is provided with the tapped through hole towards pipe collar center, positioning is equipped in tapped through hole
Bolt, the lower end of positioning bolt are taper and towards pipe collar center.
Preferably, it is connected respectively by three connecting plates between two lower branches between two upper half-turns.
Preferably, all connecting plates are uniformly distributed along the circumferencial direction of pipe collar.
Preferably, the connecting plate is mounted on by adjusting bolt on upper half-turn and lower branch, and the nut acts against company
On fishplate bar.
Preferably, the both ends of the upper half-turn and the both ends of lower branch are connected by connecting screw bolt and nut respectively.
Preferably, gasket is equipped between the both ends and the both ends of lower branch of the upper half-turn.
As described above, the utility model is used for the centering tooling of pipeline welding, have the advantages that：
(1) this tooling uses easy, it is only necessary to which one pulls adjusting bolt and nut to realize a pipeline centering tune spanner
It is whole, special training need not be done to construction personnel.Cucurbit hard draw is not needed when the centering of this tooling, it is only necessary to by adjusting bolt according to
Actually measured centering situation constantly adjust；This tooling need not be fixed in welding using welded type horse plate, only
This tooling need to directly be locked then according to welding process requirement welded pipe line, base material can be avoided damage to, avoid spot welding
When destroy pipeline inside passivation protection film.This tooling uses screw-driven when adjusting, and the 10 degree every turn height differences that can be adjusted are in 1mm
Hereinafter, being thus well positioned to meet B grades of centering requirements in DIN EN 25817.
(2) this tooling critical piece is simple in structure, and raw material can be easier to buy from the market, batch production system
It makes at low cost.This tooling critical piece material is all carbon steel, and only adjusting bolt and nut is stainless steel, relative to other
Centering tooling has low-cost advantage.
(3) this tooling only need than than centering the space of the big 80mm of pipeline or so can implement to adjust work, significantly
Reduce construction space demand.Suitable for the intensive crowded pipeline cloth of the liquefied gas carriers liquefied cargo system such as LEG, LPG, VLGC, LNG
In emptying.
Description of the drawings
Fig. 1 is the structure chart of one pipe collar of the utility model.
Fig. 2 is the whole side view of the utility model.
Fig. 3 is the cooperation schematic diagram of upper half-turn and connecting plate in the utility model.
Fig. 4 is the structure chart of upper half-turn and lower branch in the utility model.
Fig. 5 is the schematic diagram of connecting plate in the utility model.
Fig. 6 uses schematic diagram for the utility model.
In figure：
Half-turn on 1 pipe collar 11
12 lower branches 13 connect bolt
2 connecting plate, 3 adjusting bolt
4 nut, 5 positioning bolt
6 gasket, 100 first pipe
200 second pipes
Specific implementation mode
Structure, ratio, size depicted in Figure of description etc., only to coordinate the revealed content of specification, with
Understand for those skilled in the art and read, is not limited to the enforceable qualifications of the utility model, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute
Under the effect of capable of generating and the purpose that can reach, the model that can cover in the revealed technology contents of the utility model should all be fallen
In enclosing.Meanwhile cited such as "upper", "lower", "front", "rear", " centre " term in this specification, it is merely convenient to describe
Be illustrated, rather than to limit the enforceable range of the utility model, relativeness is altered or modified, without substantive change
Under technology contents, when being also considered as the enforceable scope of the utility model.
The utility model provides one kind and being used for LEG, LPG, VLGC, LNG ship liquefied cargo system pipeline small space construction demand,
The tooling in two sections of stainless steel pipes pair can not realized using the methods of welding at the scene of limited space.Such as Fig. 1-
Shown in Fig. 5, the utility model includes the identical pipe collar 1 of two structures, and pipe collar 1 is conventional circular structure, and pipe collar 1 includes upper half-turn
11 and lower branch 12, the both ends of the upper half-turn 11 and the both ends of lower branch 12 be respectively cooperating with connection, connector can be passed through
Connection, can also be connected by tools such as other clamps.Two pipe collars 1 are axially set up in parallel along pipeline, two upper half-turns
It is connected by multiple connecting plates 2 between two lower branches 12 between 11, is divided on 11 upper and lower half-turn 12 of the upper half-turn respectively
Multiple tapped through holes towards pipe collar center are not opened up, are equipped with adjusting bolt 3 in tapped through hole, in the adjusting bolt 3
Equipped with the nut 4 for acting against 12 outside of upper half-turn 11 and lower branch.The centre position of the connecting plate 2 is provided with towards in pipe collar
The tapped through hole of the heart, is equipped with positioning bolt 5 in tapped through hole, and the lower end of positioning bolt 5 is pyramidal structure and towards pipe
Hoop center, the positioning bolt 5 on all connecting plates 2 is on same periphery, and when ensuring welding, two pipelines are effectively aligned.
3 end of adjusting bolt of this tooling uses arc surface, avoids scratching Management of Pipeline Mechanical Equipment when acting against on pipeline.Cause
The fastening of this tooling can carry out elastic adjustment using conventional hex bolts with tools such as conventional spanners, easy to use.
In conjunction with Fig. 1-Fig. 6, when using this tooling, first by the upper half-turn 11 of pipe collar 1 and lower branch 12 be sandwiched in needed for it is right
In first pipe 100 on, while the upper half-turn 11 of another pipe collar 1 and lower branch 12 are also sandwiched in the second pipe of required centering
On 200, the both ends of upper half-turn 11 and the both ends of lower branch 12 are then preliminarily mated connection respectively.Adjustment pipe collar 1 and weldering of freezing
Spacing between seam, ensure adjusting bolt 3 end can top pressure in first pipe 100 and second pipe 200, then lock
Tightly upper half-turn 11 and lower branch 12.The effect of positioning bolt 5 be control two to middle pipe (i.e. first pipe and second pipe) it
Between welding spacing, to meet technological requirement.Its control mode is：With reference to figure 6 spiral shell is positioned when positioning bolt 5 gradually screws in
The tapering point of bolt 5 is inserted into two, and two are located remotely from each other middle pipe between middle pipe, that is, increase welding spacing, and work as positioning bolt 5
When gradually screwing out, tapering point is withdrawn, can be close to each other to middle pipe and act against and carried out on positioning bolt 5 by two by external force
Positioning welds spacing with this to achieve the purpose that adjust.When starting centering, all nuts 4 are close to the head one of adjusting bolt 3
Side is abutted against to achieve the purpose that adjust pipeline location that is, with the screw-in of adjusting bolt 3 by rotating each adjusting bolt 3
Pipeline movement, all adjusting bolts 3 is pushed to want mating reaction on pipeline, one when screwing in, adjacent cooperation screws in, same to phase
Side is screwed out；When finally positioning, all adjusting bolts 3 act against on pipeline.In order to obtain better adjustment effect, adjust
When pay special attention to the angle rotated every time no more than adjusting bolt 3 1/4 circle.In practical operation, first pass through on a pipe collar 1
Each adjusting bolt 3 to first pipe 100 carry out position adjusting, after location determination is good, on the basis of first pipe 100, then
The position of second pipe 200 is adjusted by each adjusting bolt 3 on another pipe collar 1, centering is welded until meeting
It needs, finally all nuts 4 is screwed and are acted against on upper half-turn 11 and lower branch 12, it is ensured that station is stablized, and finally completes follow-up
Welding.
In a preferred embodiment, as shown in figures 1 and 3, the connecting plate 2 is mounted on upper half-turn 11 by adjusting bolt 3
On lower branch 12, the nut 4 acts against on connecting plate 2.That is, the quantity of connecting plate 2 is upper half-turn 11 and lower half
Enclose 12 upper tapped through hole quantity and, connecting plate 2 be it is detachable, use is more flexible.Other embodiment can also be direct
Connecting plate 2 is welded on upper half-turn 11 and lower branch 12.
With reference to figure 1 and Fig. 2, connected respectively by three connecting plates 2 between two lower branches 12 between two upper half-turns 11
It connects.And further, all connecting plates 2 are uniformly distributed along the circumferencial direction of pipe collar 1, i.e., between each other at a distance of 60 ° of angle
Displacement.
As shown in Figure 1, in a preferred embodiment, the both ends of the upper half-turn 11 and the both ends of lower branch 12 pass through company respectively
Connecting bolt 13 and nut are connected, and specifically above the both ends of half-turn 11 and the both ends of lower branch 12 extend radially outward to be formed
Lug, connection bolt 13 connects upper half-turn 11 and lower branch 12 across lug, and passes through nut check.In addition, the upper half
It is equipped with gasket 6 between the both ends and the both ends of lower branch 12 of circle 11.Although the diameter of pipe collar 1 is determined according to the outer diameter of pipeline,
And made to plus tolerance, but by adjusting the thickness of gasket 6, this tooling scope of application bigger can be allowed, limitation smaller.
In conclusion the utility model is used for the centering tooling of pipeline welding, effectively overcome more in the prior art
Practical problem is to have very high utility value and use meaning.
The above embodiment is only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.The utility model can be improved there are many more aspect under the premise of without prejudice to overall thought, for being familiar with this technology
Personage can all be carried out modifications and changes to above-described embodiment under the spirit and scope without prejudice to the utility model.Therefore,
Such as those of ordinary skill in the art is in the revealed spirit without departing from the utility model and institute under technological thought
All equivalent modifications completed or change, should be covered by the claim of the utility model.
Claims (6)
1. a kind of centering tooling for pipeline welding, it is characterised in that：Including the identical pipe collar (1) of two structures, pipe collar (1)
Including upper half-turn (11) and lower branch (12), the both ends of the upper half-turn (11) and the both ends of lower branch (12) are respectively cooperating with company
It connects；Two pipe collars (1) are axially set up in parallel along pipeline, divide between two lower branches (12) between two upper half-turns (11)
It is not connected, is opened up respectively on the upper and lower half-turn of the upper half-turn (11) (12) multiple towards in pipe collar by multiple connecting plates (2)
The tapped through hole of the heart is equipped with adjusting bolt (3) in tapped through hole, is equipped on the adjusting bolt (3) and acts against half-turn
(11) centre position of the nut (4) and on the outside of lower branch (12), the connecting plate (2) is provided with the screw thread towards pipe collar center
Through-hole, is equipped with positioning bolt (5) in tapped through hole, and the lower end of positioning bolt (5) is taper and towards pipe collar center.
2. the centering tooling according to claim 1 for pipeline welding, it is characterised in that：Between two upper half-turns (11)
It is connected respectively by three connecting plates (2) between two lower branches (12).
3. the centering tooling according to claim 1 for pipeline welding, it is characterised in that：All connecting plates (2) along
The circumferencial direction of pipe collar (1) is uniformly distributed.
4. the centering tooling according to claim 1 for pipeline welding, it is characterised in that：The connecting plate (2) passes through
Adjusting bolt (3) is mounted on upper half-turn (11) and lower branch (12), and the nut (4) acts against on connecting plate.
5. the centering tooling according to claim 1 for pipeline welding, it is characterised in that：The two of the upper half-turn (11)
End and the both ends of lower branch (12) are connected by connecting bolt (13) and nut respectively.
6. the centering tooling according to claim 1 for pipeline welding, it is characterised in that：The two of the upper half-turn (11)
Gasket (6) is equipped between end and the both ends of lower branch (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820186660.7U CN207930249U (en) | 2018-02-02 | 2018-02-02 | Centering tooling for pipeline welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820186660.7U CN207930249U (en) | 2018-02-02 | 2018-02-02 | Centering tooling for pipeline welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207930249U true CN207930249U (en) | 2018-10-02 |
Family
ID=63651221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820186660.7U Active CN207930249U (en) | 2018-02-02 | 2018-02-02 | Centering tooling for pipeline welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207930249U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500522A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | A kind of tooling ensureing moulding bed verticality of stand column |
| CN111734895A (en) * | 2020-07-31 | 2020-10-02 | 中国二十二冶集团有限公司 | Quick pipeline butt joint device and pipeline butt joint method |
| CN111745316A (en) * | 2020-06-29 | 2020-10-09 | 沪东中华造船(集团)有限公司 | Rapid positioning and correcting method for butt joint of steel pipes |
| CN114212211A (en) * | 2022-01-13 | 2022-03-22 | 靖江市富源钢结构有限公司 | Installation auxiliary fixtures of boats and ships shafting flange |
-
2018
- 2018-02-02 CN CN201820186660.7U patent/CN207930249U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500522A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | A kind of tooling ensureing moulding bed verticality of stand column |
| CN111745316A (en) * | 2020-06-29 | 2020-10-09 | 沪东中华造船(集团)有限公司 | Rapid positioning and correcting method for butt joint of steel pipes |
| CN111734895A (en) * | 2020-07-31 | 2020-10-02 | 中国二十二冶集团有限公司 | Quick pipeline butt joint device and pipeline butt joint method |
| CN114212211A (en) * | 2022-01-13 | 2022-03-22 | 靖江市富源钢结构有限公司 | Installation auxiliary fixtures of boats and ships shafting flange |
| CN114212211B (en) * | 2022-01-13 | 2023-01-10 | 靖江市富源船舶配件有限公司 | Installation auxiliary fixtures of boats and ships shafting flange |
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