CN202963885U - Sleeve butt joint centering device - Google Patents
Sleeve butt joint centering device Download PDFInfo
- Publication number
- CN202963885U CN202963885U CN 201220670104 CN201220670104U CN202963885U CN 202963885 U CN202963885 U CN 202963885U CN 201220670104 CN201220670104 CN 201220670104 CN 201220670104 U CN201220670104 U CN 201220670104U CN 202963885 U CN202963885 U CN 202963885U
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- China
- Prior art keywords
- sleeve pipe
- centralizer
- steel rings
- hole slot
- hole
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a sleeve butt joint centering device used for large-diameter sleeve butt joint. The centering device comprises two semi-circular steel rings which are arranged symmetrically. One ends of the two steel rings are hinged, and the other ends of the two steer rings are connected with ear plates. Circular holes are formed in opposite positions of the two ear plates. Hole grooves are formed symmetrically in the two steel rings. At least two adjusting screw holes are respectively formed in the two steel rings on the same periphery face with the hole grooves. Adjacent adjusting screw holes are arranged at equal distance. The sleeve butt joint centering device is simple in design, convenient to operate and low in cost, and sleeve collapse accidents caused by the fact that verticality and concentricity are in inconformity during large-diameter sleeve butt joint are avoided.
Description
Technical field
The utility model relates to a kind of sleeve pipe docking centralizer for the docking of major diameter sleeve pipe.
Background technology
Produce and requirement of engineering for satisfying, major diameter (as diameter 630mm-820mm) engineering well is used widely in fields such as collieries gradually.The casing diameter is large, weight is large owing to entering for the major diameter engineering well, can not adopt screwed connection, needs to adopt welding method to connect.According to engineering practice, there be decentraction and buckling phenomenon to a certain degree in the major diameter bunch tube of welding, its perpendicularity and concentricity can not be guaranteed, and because well exists certain crooked, the borehole wall is not the smooth face of cylinder yet, during setting of casing, bunch tube very easily contacts with borehole wall generating plane, makes the sleeve pipe partial lateral stressed excessive and deform, and then circumferentially unbalance stress causes the casing collapse accident.
The utility model content
The purpose of this utility model is to provide a kind of docking centralizer for large diameter sleeve pipe.
The technical solution adopted in the utility model is as follows:
Sleeve pipe docking centralizer comprises two symmetrically arranged semicircle steel rings, and an end of two steel rings is hinged, and the other end all is connected with an otic placode, and on two otic placodes, symmetric position is provided with circular hole; Go back symmetry on two steel rings and offer hole slot; Also be respectively equipped with at least two with hole slot with side face on two steel rings and adjust screw hole, adjacent adjustment screw hole spaced set.
The upper and lower edge of the center of hole slot and steel ring is equidistant.
On two steel rings, symmetry has four hole slots, each hole slot spaced set.
Described hole slot is oval.
The long axis length of hole slot be the circle that surrounds of two steel rings girth 1/8th, minor axis length is 1/3rd of steel ring height.
One end of two steel rings is hinged by axle sleeve.
Described centralizer is provided with handle.
The utility model centralizer, an end is flexibly connected by axle sleeve, and the other end connects with bolt and nut by the circular hole on otic placode, is convenient to the switch centralizer.The hole slot of offering on steel ring is used for Real Time Observation sleeve pipe docking situation, and the visual field of not only observing is broader, and welds conveniently, more is conducive to guarantee the concentricity of upper and lower sleeve pipe, the uniformity of perpendicularity.Adjust screw hole for interface tube is adjusted, centering to overlapping.Concrete, to adjust screw hole for four and be arranged on hole slot horizontal median axis same level position, adjacent two screw hole center lines are mutually at an angle of 90, and join four groups of bolt+nuts, bolt head is the rounding head, by screw hole and bolt adjustment docking sleeve opening, to guarantee sleeve pipe joint close, concentric; After adjustment is completed, fix with nut.
Described sleeve pipe docking centralizer using method is as follows:
Before sleeve pipe docking, at first two formed cylinders of semicircle steel ring after closure are placed on the mouth of pipe top of trapping, carefully check the centering situation of adjusting the adjustment screw on screw hole, guarantee Real Time Observation sleeve opening in hole slot; After screw centering is completed and is adjusted in the position adjustment of the cylinder cover of two steel ring compositions, pass circular hole on two otic placodes with bolt, two otic placodes are screwed up, the mouth of pipe of the upper sleeve pipe sling is slowly put into down the cylinder cover, the not contact fully of upper and lower sleeve pipe this moment, rig bears most of casing wt.By the position of sleeve opening in the adjustment of adjustment screw, and the docking situation of observing upper and lower sleeve opening by hole slot; After the concentricity of upper and lower sleeve pipe, perpendicularity reach requirement, again put sleeve pipe down, upper and lower sleeve pipe is contacted fully, and finely tune upward sleeve opening position by adjusting screw, complete the centering work of upper and lower sleeve pipe.Guaranteeing mouth of pipe joint close, after drive pipes concentricity, perpendicularity reached requirement, the adjustment screw with nut fixed adjustment screw hole was symmetrically welded the cover interface tube simultaneously by hole slot, after firm welding, takes off centralizer, and the sleeve pipe remainder is welded.
The utility model sleeve pipe docking centralizer can be used for mine gas pump-drainage well, grouting for water blocking well, defeated nitrogen fire extinguishing well, send the sleeve pipe docking of ice cooling well, draining ventilation shaft, mine escape well.
The utility model has following advantage with respect to prior art:
This new casing docking centralizer simplicity of design, easy to operate, with low cost, the casing collapse accident that has produced because perpendicularity and concentricity are inconsistent when having solved major diameter sleeve pipe butt welding.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of centralizer in Fig. 1.
The specific embodiment
Below with specific embodiment, the technical solution of the utility model is described, but protection domain of the present utility model is not limited to this:
Embodiment 1
As shown in Figure 1, 2, sleeve pipe docking centralizer comprises that two symmetrically arranged semicircle steel rings 1,2, two steel rings 1, an end of 2 are flexibly connected by axle sleeve 3, and the other end all is connected with an otic placode 5,4, and on otic placode 4,5, symmetric position is provided with circular hole 6; On two steel rings 1,2 also symmetry offer oval hole slot 8, the upper and lower edge of the center of hole slot 8 and steel ring is equidistant, the long axis length of hole slot 8 be the circle that surrounds of two steel rings girth 1/8th, minor axis length is 1/3rd of steel ring height; The number of hole slot 8 is 4, adjacent hole slot 8 spaced sets; Also be respectively equipped with two on two steel rings and adjust screw hole 7, adjacent adjustment screw hole 7 spaced sets.
During work, before the sleeve pipe docking, at first two after closure semicircle steel rings 1,2 formed cylinders are placed on above the mouth of pipe of trapping, carefully check the centering situation of the adjustment screw on each adjustment screw hole 7, guarantee at the interior Real Time Observation sleeve opening of each oval hole slot 8; After screw centering is completed and is adjusted in the position adjustment of cylinder cover, pass circular hole 6 on otic placode 4,5 with screw, otic placode 4,5 is screwed up, the upper sleeve pipe end opening of slinging is slowly put into down the cylinder cover, the not contact fully of upper and lower sleeve pipe this moment, rig bears most of casing wt.By the position of sleeve opening in the adjustment of adjustment screw, and pass through the docking situation that each oval hole slot 8 is observed upper and lower sleeve openings; After the concentricity of upper and lower sleeve pipe, perpendicularity reach requirement, again put sleeve pipe down, upper and lower sleeve pipe is contacted fully, and finely tune upward sleeve opening position by adjusting screw, complete the centering work of upper and lower sleeve pipe.Guaranteeing mouth of pipe joint close, after drive pipes concentricity, perpendicularity reach requirement, with the adjustment screw on nut fixed adjustment screw hole 7, be symmetrically welded simultaneously the cover interface tube by hole slot 8, after firm welding, take off the cylinder cover, upper and lower sleeve pipe remainder is welded.
Above-described embodiment be the utility model preferred embodiment; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from the substitute mode that change that the utility model does all should be equivalence; within being included in protection domain of the present utility model, as setting up handle so that use etc. on centralizer.
Claims (7)
1. sleeve pipe docking centralizer, is characterized in that, comprise two symmetrically arranged semicircle steel rings, an end of two steel rings is hinged, and the other end all is connected with an otic placode, and on two otic placodes, symmetric position is provided with circular hole; Go back symmetry on two steel rings and offer hole slot; Also be respectively equipped with at least two with hole slot with side face on two steel rings and adjust screw hole, adjacent adjustment screw hole spaced set.
2. sleeve pipe docking centralizer as claimed in claim 1, is characterized in that, the upper and lower edge of the center of hole slot and steel ring is equidistant.
3. sleeve pipe docking centralizer as claimed in claim 2, is characterized in that, on two steel rings, symmetry has four hole slots, adjacent hole slot spaced set.
4. sleeve pipe docking centralizer as claimed in claim 3, is characterized in that, described hole slot is oval.
5. sleeve pipe as claimed in claim 4 docking centralizer, is characterized in that, the long axis length of hole slot be the circle that surrounds of two steel rings girth 1/8th, minor axis length is 1/3rd of steel ring height.
6. described sleeve pipe docking centralizer as arbitrary in claim 1-5, is characterized in that, an end of two steel rings is hinged by axle sleeve.
7. sleeve pipe docking centralizer as claimed in claim 6, is characterized in that, described centralizer is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670104 CN202963885U (en) | 2012-12-07 | 2012-12-07 | Sleeve butt joint centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670104 CN202963885U (en) | 2012-12-07 | 2012-12-07 | Sleeve butt joint centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202963885U true CN202963885U (en) | 2013-06-05 |
Family
ID=48505015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220670104 Expired - Fee Related CN202963885U (en) | 2012-12-07 | 2012-12-07 | Sleeve butt joint centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202963885U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438428A (en) * | 2020-04-13 | 2020-07-24 | 中国一冶集团有限公司 | Rapid assembling and welding method for large-diameter steel pipeline |
| CN113927113A (en) * | 2021-09-23 | 2022-01-14 | 贵州永红航空机械有限责任公司 | Brazing filler metal for brazing closed impeller and brazing assembly method |
| CN114346367A (en) * | 2021-12-28 | 2022-04-15 | 中国原子能科学研究院 | Welding method for upper group pipe and lower group pipe |
-
2012
- 2012-12-07 CN CN 201220670104 patent/CN202963885U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438428A (en) * | 2020-04-13 | 2020-07-24 | 中国一冶集团有限公司 | Rapid assembling and welding method for large-diameter steel pipeline |
| CN113927113A (en) * | 2021-09-23 | 2022-01-14 | 贵州永红航空机械有限责任公司 | Brazing filler metal for brazing closed impeller and brazing assembly method |
| CN114346367A (en) * | 2021-12-28 | 2022-04-15 | 中国原子能科学研究院 | Welding method for upper group pipe and lower group pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131207 |