CN106273439A - Elastic centralizer shaped device - Google Patents
Elastic centralizer shaped device Download PDFInfo
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- CN106273439A CN106273439A CN201510237391.3A CN201510237391A CN106273439A CN 106273439 A CN106273439 A CN 106273439A CN 201510237391 A CN201510237391 A CN 201510237391A CN 106273439 A CN106273439 A CN 106273439A
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- mandrel
- shaped device
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- forming blocks
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Abstract
The present invention relates to a kind of elastic centralizer shaped device.This device includes the first mandrel and second mandrel of coaxial and spaced apart setting, and the first mandrel and the second mandrel can move relative to each other vertically, are movably arranged at the forming blocks between the opposed end of the first mandrel and the second mandrel.When the first mandrel and the second mandrel move towards one another, forming blocks protrudes into higher than the first mandrel or the peripheral surface of the second mandrel, and when the first mandrel and the second mandrel move away from each other, forming blocks is retracted into less than the first mandrel or the peripheral surface of the second mandrel.Elastic centralizer shaped device according to the present invention, it is possible to produce elastic centralizer easily.
Description
Technical field
The present invention relates to field of machining, particularly to a kind of device for manufacturing elastic centralizer.
Background technology
Elastic centralizer is necessary device when being oil gas well cementing operation operation in petroleum works.The profile of elastic centralizer
For substantially cydariform or olive shape, the elasticity using the expansion technique of prior art to be difficult to produce this shape is held up
Positive device.
Such as, in the prior art, tubing bloating plant is all to carry out the most all for various tubing, seamless pipe
Even expansion, i.e. uses the external diameter cone more than pipe internal diameter, by pushing away or drawing effect, makes cone pass through tubing,
By cone, pipe internal diameter is supportted swollen and realize the expansion of pipe diameter size.But, in this way will
After tubing expands, tubing remains as cylindric.The diameter dimension of tubing is become big by expansive working the most simply,
Can not produce the expansion of cydariform, the most existing skill cannot produce this elastic centralizer centralizer.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of elastic centralizer shaped device.Elasticity according to the present invention
Centralizer shaped device, it is possible to produce elastic centralizer easily.
Elastic centralizer shaped device according to the present invention, including: coaxial and the first mandrel of spaced apart setting and
Second mandrel, the first mandrel and the second mandrel can move relative to each other vertically, are movably arranged at the first mandrel
And second mandrel opposed end between forming blocks, when the first mandrel and the second mandrel move towards one another,
Forming blocks protrudes into higher than the first mandrel or the peripheral surface of the second mandrel, when the first mandrel and the second mandrel away from
When moving each other, forming blocks is retracted into less than described first mandrel or the peripheral surface of the second mandrel.
When the elastic centralizer shaped device using the present invention manufactures elastic centralizer, first by ribbed tubing set
On this first mandrel and the second mandrel, and the rib of tubing is made to be directed at forming blocks.Then by the first mandrel and
Second mandrel moves towards one another and makes forming blocks protrude, so that it may so that the outwardly deformation of the rib of tubing, and manage
The two ends of material keep constant.Thus, just facilitate and be made for cydariform or olivary elastic centralizer.Afterwards,
First mandrel and the second mandrel are moved away from each other and make forming blocks retract, it is possible to easily by the bullet of molding
Property centralizer takes off from device.Thus, use can be easily according to the elastic centralizer shaped device of invention
Manufacture cydariform or olivary elastic centralizer.
In one embodiment, the end face of forming blocks is arcwall face.So can make manufactured elastic centralizer
The shape of rib the most smooth, be favorably improved the performance of elastic centralizer.
In one embodiment, the opposed end of the first mandrel and the second mandrel is all configured with lead-in chamfered,
The side contacted with the first mandrel and the second mandrel respectively of forming blocks constitutes the slip matched with lead-in chamfered
Inclined-plane.This ramp structure matched each other contributes to the radial motion of forming blocks, thus assembly of the invention
Use is convenient to.
In one embodiment, the first mandrel and the second mandrel end structure relative to each other become towards end face gradually
The taper reduced, the peripheral surface of taper forms lead-in chamfered.In lead-in chamfered and corresponding sliding bevel
It is configured with guide recess on one, another in lead-in chamfered and corresponding sliding bevel is configured with and draws
Lead the guiding projection of groove match.In such an embodiment, the end of the first mandrel and the second mandrel is integrally formed
Lead-in chamfered, the installation of forming blocks and motion are only guided groove and the constraint that guides projection and the most still other
Constraints, therefore facilitates manufacture and the assembling of forming blocks.
In a preferred embodiment, guide recess is dovetail groove, guides the shape of projection and the shape of dovetail groove
Shape matches.The cooperation of dovetail groove and guiding projection can avoid forming blocks and the first mandrel and/or the second mandrel completely
Disengage.Thus, during manufacturing elastic centralizer, forming blocks can smoothly project outwardly into along sliding bevel
Outside the peripheral surface of the first mandrel and the second mandrel, facilitate the manufacture of elastic centralizer.
In one embodiment, also include that the axis of guide, the core portion configuration of the second mandrel have guide through hole, the axis of guide
Movable guide through hole and the first end of the axis of guide and the first mandrel of extending through is connected.The axis of guide can guide
Second mandrel is exactly along its axially-movable, to ensure that forming blocks can be smoothly outwardly along sliding bevel
Outside the peripheral surface of the first mandrel and the second mandrel.
In one embodiment, also include driving the first mandrel and the second mandrel elastic component away from each other.By
This, after making the first mandrel and the second mandrel be movable with respect to and manufacture elastic centralizer, the first mandrel
Can automatically separate with the second mandrel and operate without other, facilitate operation.In a preferred embodiment,
Elastic component is the helical spring being wrapped the axis of guide, and the first end of helical spring and the first mandrel are connected, spiral
In the second end of spring extends to guide through hole and it is connected with the second mandrel.
In one embodiment, the second end of the axis of guide is in outside guide through hole, and at the of the axis of guide
Two ends are provided with position limiting structure.By arranging position limiting structure, can prevent between the first mandrel and the second mandrel
Spacing excessive and cause forming blocks to drop.Additionally, position limiting structure is also prevented from the second mandrel and the first mandrel
Completely disengaged.
Compared with prior art, it is an advantage of the current invention that: (1) uses the elastic centralizer molding of the present invention
When device manufactures elastic centralizer, ribbed tubing is set on this first mandrel and the second mandrel, and makes tubing
Rib is directed at forming blocks.Then the first mandrel and the second mandrel are moved towards one another and make forming blocks protrude, just
The outwardly deformation of rib of tubing can be made, and the two ends of tubing keep constant.Thus, just facilitate and be made for
Cydariform or olivary elastic centralizer.(2) assembly of the invention simple in construction, easily operated, repeatable
Use, shaping efficiency height, be beneficial to batch production.(3) operator can the most freely change forming blocks,
Thus can regulate radian and the shape of the external drum part of elastic centralizer, to adapt to various different demand.
Accompanying drawing explanation
Hereinafter based on embodiment reference accompanying drawing, the present invention will be described in more detail.Wherein:
Fig. 1 and Fig. 2 show schematically show two states of the elastic centralizer shaped device according to the present invention.
Fig. 3 is the A direction view of Fig. 2.
Fig. 4 show schematically show the forming blocks of the elastic centralizer shaped device according to the present invention.
Fig. 5 and Fig. 6 show schematically show the elastic centralizer shaped device used according to the present invention and manufacture elasticity
The process of centralizer.
In the accompanying drawings, identical parts use identical reference.Accompanying drawing is not according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 and Fig. 2 show schematically show the structure of the elastic centralizer shaped device 100 according to the present invention.
As illustrated in fig. 1 and 2, elastic centralizer shaped device 100 includes first mandrel the 1, second mandrel 5 and lives
Dynamic formula is arranged on the forming blocks 3 between the first mandrel 1 and the second mandrel 5.Forming blocks 3 is used for implementing to expand.
The end face of forming blocks 3 can be configured to arcwall face for this, so that the rib 21 of manufactured elastic centralizer 20
(as illustrated in Figures 5 and 6) shape is the most smooth, is favorably improved the performance of elastic centralizer.
First mandrel 1 and the second mandrel 5 are coaxial and spaced apart and arrange, and both can phase the most each other
To motion.Such as the first mandrel 1 can be fixed, and use hydraulic coupling to drive the second mandrel 5 to transport vertically
Dynamic.When the first mandrel 1 and the second mandrel 5 relative motion, forming blocks 3 can contract the most outwardly or inwards
Return to realize expanding into ribbed tubing cydariform or olivary elastic centralizer.This will retouch in detail below
State.
So that forming blocks 3 can radially be protruded or retract inwards, on the end of the first mandrel 1
It is configured with lead-in chamfered 10, the end relative with the first mandrel 1 of the second mandrel 5 is also configured with corresponding
Lead-in chamfered 10 '.The slip that two sides are then configured to lead-in chamfered 10,10 ' matches of forming blocks 3 is oblique
Face 11,11 '.Thus, when the first mandrel 1 and the second mandrel 5 move towards one another, the first mandrel 1 He
Gap between second mandrel 5 reduces.In lead-in chamfered 10,10 ' and the interaction of sliding bevel 11,11 '
Under, forming blocks 3 protrude into higher than the first mandrel 1 or the second mandrel 5 peripheral surface 12 with implement expand,
As shown in Figure 2.When the first mandrel 1 and the second mandrel 5 move away from each other, the first mandrel 1 and the second core
Gap between axle 5 increases.So forming blocks 3 can be retracted between the first mandrel 1 and the second mandrel 5 again
Gap in, and less than the first mandrel 1 or peripheral surface of the second mandrel 5, as shown in Figure 1.
Preferably, the end 14,14 ' relative to each other of the first mandrel 1 and the second mandrel 5 is configured to towards end
The diminishing taper in face 13, for example, cone, as illustrated in fig. 1 and 2.In this case, taper
Peripheral surface be formed for lead-in chamfered 10,10 '.
In order to make forming blocks 3 can stably radial motion, can be in lead-in chamfered 10,10 ' upper structure guide recess 2
(as shown in Figure 1), and at sliding bevel 11,11 ' the guiding projection 9 matched above is constructed (such as Fig. 4 institute
Show).So, forming blocks 3 can be along a certain specific radial direction under guide recess 2 and the guiding guiding projection 9
Motion (that is, having fixing movement locus), without arbitrarily deviateing the direction, this contributes to expansive working.
Preferably, guide recess 2 is dovetail groove, guides the shape of projection 9 and the mating shapes of dovetail groove 2, example
As for dovetail projection.Dovetail groove and dovetail projection have overlapped region in the circumferential, it is possible to avoid dovetail groove
Unexpected disengagement convex with dovetail, further increases the kinetic stability of forming blocks 3.Should be appreciated that, although
Figure show schematically show guide recess 2 and construct on mandrel, guide projection 9 to construct in forming blocks 3,
But guide recess 2 can also be constructed in forming blocks 3, and guiding projection 9 is constructed on mandrel.
In order to ensure the first mandrel 1 and coaxial degree of the second mandrel 5, can be at the core portion configuration of the second mandrel 5
Guide through hole 15.Then this guide through hole 15 is extended through by movable for an axis of guide 6.In this case,
Second mandrel 5 moves along the axis of guide 6 all the time, it is ensured that the first mandrel 1 and coaxial degree of the second mandrel 5.
As illustrated in fig. 1 and 2, the first end 16 of the axis of guide 6 is connected with the end 14 of the first mandrel 1, the second end
Portion 17 is in outside the guide through hole 15 of the second mandrel 5.In one embodiment, the axis of guide 6 and the first core
Axle 1 is threaded.As such, it is possible to the mode turned is directed to axle 6 and the first mandrel 1 and the second mandrel 5
It is assembled together, assembles more convenient.
It is also preferred that be provided with position limiting structure 7 at the second end 17 of the axis of guide 6.Such as this spacing knot
Structure 7 can be stop nut.Position limiting structure 7 can prevent the spacing mistake between the first mandrel 1 and the second mandrel 5
Forming blocks 3 is caused to drop greatly.Additionally, position limiting structure 7 is also prevented from the second mandrel 5 and the first mandrel 1
Completely disengaged.Additionally, by the regulation stop nut 7 position on the axis of guide 6, can the second mandrel 5 with
Ultimate range between first mandrel 1, have adjusted the ultimate range that forming blocks 3 is outwardly the most indirectly, with
Adapt to different expansion requirements.
In order to make easily the first mandrel 1 close to each other and the second mandrel 5 away from, also the first mandrel 1 He
It is provided with elastic component 4 between second mandrel 5.In the embodiment shown in Fig. 1 and 2, elastic component 4 is for being wound around
The helical spring of the axis of guide 6.First end and first mandrel 1 of helical spring 4 are connected, and the second end prolongs
In reaching guide through hole 15 and it is connected with the second mandrel 5.Such as, guide through hole 15 close to end 14 '
The enlarged-diameter of part is formed and accommodates chamber 22.A part for helical spring 4 (realizes spiral shell in being in receiving chamber 22
The second end and second mandrel 5 of rotation spring 4 are connected), another portion extend out from guide through hole 15 and to
Reach the end 14 (first end and the first mandrel 1 that realize helical spring 4 are connected) of the first mandrel 1.
The process that use elastic centralizer shaped device 100 manufacture elastic centralizer be will be described below.
During beginning, under the effect of helical spring 4, the first mandrel 1 and the second mandrel 5 are in the axial direction at a distance of
Far, and forming blocks 3 is retracted in below the peripheral surface of the first mandrel 1 and the second mandrel 5.Now, can be by
Ribbed tubing 20 is set on the first mandrel 1 and the second mandrel 5, and makes rib 21 align with forming blocks 3.As
Shown in Fig. 5.
After treating that ribbed tubing 20 is provided with, use hydraulic press that the second mandrel 5 is applied pressure, the
Two mandrels 5 move closer to the first mandrel 1 along the axis of guide 6.Lead-in chamfered 10,10 ' and sliding bevel 11,
Under the effect of 11 ', forming blocks 3 starts at radial outward movement, and ribbed tubing 20 expand into elastic righting
Device 20.As shown in Figure 6.
Then pressure is removed, under the effect of helical spring 4, at the beginning of making the second mandrel 5 and forming blocks 3 be returned to
Beginning state, this is the elastic centralizer 20 that can take off molding from device 100.
Although by reference to preferred embodiment, invention has been described, but without departing from the scope of the present invention
In the case of, it can be carried out various improvement and parts therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way
Come.The invention is not limited in specific embodiment disclosed herein, but include falling within the scope of the appended claims
All technical schemes.
Claims (10)
1. an elastic centralizer shaped device, including:
Coaxial and the first mandrel of spaced apart setting and the second mandrel, described first mandrel and the second mandrel can be along axles
Relative motion to each other,
It is movably arranged at the forming blocks between described first mandrel and the opposed end of the second mandrel,
Wherein, when described first mandrel and the second mandrel move towards one another, described forming blocks protrudes into and is higher than
Described first mandrel or the peripheral surface of the second mandrel, when described first mandrel and the second mandrel are transported away from each other
Time dynamic, described forming blocks is retracted into less than described first mandrel or the peripheral surface of the second mandrel.
Shaped device the most according to claim 1, it is characterised in that at described first mandrel and second
Lead-in chamfered all it is configured with on the opposed end of mandrel,
The side contacted with described first mandrel and the second mandrel respectively of described forming blocks is constituted and described guiding
The sliding bevel of slopes which match.
Shaped device the most according to claim 2, it is characterised in that in described lead-in chamfered with corresponding
Sliding bevel in one on be configured with guide recess, in described lead-in chamfered and corresponding sliding bevel
The guiding projection matched with described guide recess it is configured with on another.
Shaped device the most according to claim 3, it is characterised in that described guide recess is dovetail groove,
The shape of described guiding projection and the mating shapes of described dovetail groove.
5. according to the shaped device according to any one of claim 2 to 4, it is characterised in that described first
Mandrel and the second mandrel end structure relative to each other became towards the diminishing taper of end face, the week of described taper
Described lead-in chamfered is formed to surface.
6. according to the shaped device according to any one of claim 1 to 5, it is characterised in that described molding
The end face of block is arcwall face.
7. according to the shaped device according to any one of claim 1 to 6, it is characterised in that also include leading
To axle, the core portion configuration of described second mandrel has guide through hole, the described axis of guide is movable extend through described in lead
It is connected with described first mandrel to the first end of through hole and the described axis of guide.
Shaped device the most according to claim 7, it is characterised in that also include driving described first
Mandrel and the second mandrel elastic component away from each other.
Shaped device the most according to claim 8, it is characterised in that described elastic component is for being wrapped
Stating the helical spring of the axis of guide, the first end of described helical spring is connected with described first mandrel, described spiral
In the second end of spring extends to described guide through hole and it is connected with described second mandrel.
10. according to the shaped device according to any one of claim 7 to 9, it is characterised in that described guiding
The second end of axle is in outside described guide through hole, and arranges limited at the second end of the described axis of guide
Bit architecture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237391.3A CN106273439B (en) | 2015-05-12 | 2015-05-12 | Elastic centralizer molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237391.3A CN106273439B (en) | 2015-05-12 | 2015-05-12 | Elastic centralizer molding machine |
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| Publication Number | Publication Date |
|---|---|
| CN106273439A true CN106273439A (en) | 2017-01-04 |
| CN106273439B CN106273439B (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510237391.3A Active CN106273439B (en) | 2015-05-12 | 2015-05-12 | Elastic centralizer molding machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749628A (en) * | 2020-08-05 | 2020-10-09 | 河北上善石油机械有限公司 | Casing centralizer |
| CN112588930A (en) * | 2020-11-14 | 2021-04-02 | 何国良 | Internal stay formula work piece processingequipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007017355A1 (en) * | 2005-08-05 | 2007-02-15 | Shell Internationale Research Maatschappij B.V. | Pipe expander |
| TWM449210U (en) * | 2012-11-02 | 2013-03-21 | Jun-Fan Chen | Tube expander |
| CN202970573U (en) * | 2012-11-12 | 2013-06-05 | 中国石油天然气股份有限公司 | Combined reducing expansion cone of expansion tube |
| CN203515369U (en) * | 2013-10-29 | 2014-04-02 | 大庆宝信金瑞机械设备有限公司 | Bow-spring elastic centralizer |
-
2015
- 2015-05-12 CN CN201510237391.3A patent/CN106273439B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007017355A1 (en) * | 2005-08-05 | 2007-02-15 | Shell Internationale Research Maatschappij B.V. | Pipe expander |
| TWM449210U (en) * | 2012-11-02 | 2013-03-21 | Jun-Fan Chen | Tube expander |
| CN202970573U (en) * | 2012-11-12 | 2013-06-05 | 中国石油天然气股份有限公司 | Combined reducing expansion cone of expansion tube |
| CN203515369U (en) * | 2013-10-29 | 2014-04-02 | 大庆宝信金瑞机械设备有限公司 | Bow-spring elastic centralizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749628A (en) * | 2020-08-05 | 2020-10-09 | 河北上善石油机械有限公司 | Casing centralizer |
| CN111749628B (en) * | 2020-08-05 | 2021-09-17 | 河北上善石油机械有限公司 | Casing centralizer |
| CN112588930A (en) * | 2020-11-14 | 2021-04-02 | 何国良 | Internal stay formula work piece processingequipment |
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| Publication number | Publication date |
|---|---|
| CN106273439B (en) | 2019-04-16 |
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Effective date of registration: 20210429 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: China Petroleum & Chemical Corp. Patentee after: SINOPEC Research Institute OF PETROLEUM ENGINEERING Patentee after: SHELFOIL PETROLEUM EQUIPMENT & SERVICES Co.,Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petroleum & Chemical Corp. Patentee before: SINOPEC Research Institute OF PETROLEUM ENGINEERING |