CN104385180A - Clamping mechanism used for fixing drill pipe - Google Patents
Clamping mechanism used for fixing drill pipe Download PDFInfo
- Publication number
- CN104385180A CN104385180A CN201410589495.6A CN201410589495A CN104385180A CN 104385180 A CN104385180 A CN 104385180A CN 201410589495 A CN201410589495 A CN 201410589495A CN 104385180 A CN104385180 A CN 104385180A
- Authority
- CN
- China
- Prior art keywords
- groove
- clamp
- backing plate
- clamping
- wall
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229960001866 silicon dioxide Drugs 0.000 claims description 4
- 235000019994 cava Nutrition 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 3
- 239000000758 substrate Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a clamping mechanism used for fixing a drill pipe. The clamping fixture comprises two hydraulic snap ring units, wherein each hydraulic snap ring unit comprises a substrate, a hydraulic oil cylinder and an arc-shaped clamping plate, wherein one end of each hydraulic oil cylinder is fixedly arranged on the corresponding substrate, and the other end of each hydraulic oil cylinder is connected with the corresponding clamping plate; the inner wall of each clamping plate is provided with a groove; the bottom surfaces, which are axially vertical to the clamping plates, of the grooves are provided with first grooves; the side wall, which is axially parallel with each clamping plate, of the corresponding groove is inwards sunk to form a second groove; a base plate is arranged in each second groove and is provided with a flange cooperated with the second groove; the flanges are cooperated with the first grooves and the second grooves; the base plates are higher than the clamping plates in a radial direction. The inner wall of each clamping plate is provided with the corresponding base plate which has smooth inner wall and a buffering function, the outer wall of the drill pipe is prevented from being directly contacted with the clamping plates during clamping, the outer wall of the drill pipe is prevented from being damaged, and a problem that the outer wall of the drill pipe is damaged when the drill pipe is fixed by a traditional fixing device is overcome.
Description
Technical field
The present invention relates to field of fixation devices, particularly, relate to a kind of clamping device of fixing drilling rod.
Background technology
in the recovery process of oil, drilling rod is a kind of requisite instrument, because oil well is general all darker, so the drilling rod of recover petroleum generally uses the drilling rod of multisection type, the joint drilling rod damaged is changed when a certain section of drill pipe wear, when splitting the drilling rod damaged, need to unscrew damage drilling rod with special tool(s) after fixing for the two ends drilling rod damaging drilling rod.Existing fixture is all generally adopt fluid pressure type fixture, hydraulic means mainly comprises hydraulic stem part and retained part, described retained part is all generally the metal derby of fox shape structure, by hydraulic stem, two metal derbies are extruded simultaneously to drilling rod, reach the object of fixing drilling rod, existing fixture easily damages drilling-rod external wall in the process of fixing drilling rod, causes certain harmful effect to the use of follow-up drilling rod.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of clamping device of fixing drilling rod, to overcome the problem of existing fixture damage drilling-rod external wall when fixing drilling rod.
The present invention's adopted technical scheme that solves the problem is: the clamping device of fixing drilling rod, comprise two hydraulic clasp unit, hydraulic clasp unit comprises pedestal, hydraulic jack, the clamp of arcuation, one end of hydraulic jack is fixed on pedestal, the other end connects clamp, clamp inwall start fluted, the bottom surface of the groove axially vertical with clamp is provided with groove I, the sidewall axially parallel with clamp caves inward formation groove II, backing plate is provided with in groove, backing plate is provided with the chimb coordinated with groove II, chimb and groove I, groove II coordinates, backing plate exceeds clamp diametrically.Backing plate be inner wall smooth and have cushioning effect circular arc baffle plate, backing plate edge is provided with chimb, and the Embedded groove I being stuck in setting in clamp of chimb, in groove II, backing plate is first inserted groove I by fixture in use, in groove II, at primer fluid compressing cylinder clamping drilling rod, backing plate directly contacts with drilling-rod external wall, avoid drilling-rod external wall directly to contact with clamp, because backing plate has cushioning effect and inner wall smooth, therefore can not drilling-rod external wall be damaged when backing plate and drilling-rod external wall contact squeeze, backing plate is detachable, be convenient to the replacing of backing plate, the present invention is by arranging inner wall smooth at clamp inwall and having the backing plate of cushioning effect, when avoiding clamping, drilling-rod external wall directly contacts with clamp, thus protection drilling-rod external wall is not damaged, overcome existing fixture damages drilling-rod external wall problem when fixing drilling rod.
Further, backing plate is silicagel pad.Silicagel pad matter is soft, has certain cushioning effect, can not cause damage to the outer wall of drilling rod, can reach the effect that protection drilling-rod external wall is not damaged.
Further, backing plate exceeds the distance of clamp is diametrically 10mm-15mm.The height of backing plate can not be too high; the too high fixture that likely can cause fixes bad problem in clamping process; the too low effect not having again buffering, protection drilling rod; can meet being highly set to 10mm-15mm the effect protecting drilling rod not to be damaged, the stability of the clamping action of fixture in clamping process can be guaranteed again.
Further, the connected mode of clamp and hydraulic jack is detachable.Detachably be convenient to the clamp needing replacing different according to different size, improve the scope of the practicality of fixture, make it can be used for the drill-rod clamping of different size.
Further, the width of groove II 1-2mm larger than the thickness of chimb.The width of groove II, slightly larger than the thickness of chimb, is convenient to backing plate and is inserted in groove II.
To sum up, the invention has the beneficial effects as follows:
1, the present invention is by arranging inner wall smooth at clamp inwall and having the backing plate of cushioning effect; when avoiding clamping, drilling-rod external wall directly contacts with clamp; thus protection drilling-rod external wall is not damaged, and overcomes existing fixture damages drilling-rod external wall problem when fixing drilling rod.
2, the present invention is by by larger than the thickness of chimb for the width of groove II 1-2mm, makes the insertion of backing plate more convenient.
3, the connected mode of clamp and hydraulic jack is set to detachably, improve the scope of the practicality of fixture by the present invention, makes it can be used for the drill-rod clamping of different size.
Accompanying drawing explanation
Fig. 1 is the structural representation of fixture;
Fig. 2 is the structural representation of backing plate;
Fig. 3 is the top view of clamp.
Mark and corresponding parts title in accompanying drawing:
1-pedestal; 2-hydraulic jack; 3-clamp; 4-backing plate; 31-groove; 32-groove I; 33-groove II; 41-chimb.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1 to Figure 3, the clamping device of fixing drilling rod, comprise two hydraulic clasp unit, hydraulic clasp unit comprises pedestal 1, hydraulic jack 2, the clamp 3 of arcuation, one end of hydraulic jack 2 is fixed on pedestal 1, the other end connects clamp 3, clamp 3 inwall starts fluted 31, the bottom surface of the groove 31 axially vertical with clamp 3 is provided with groove I 32, the sidewall axially parallel with clamp 3 caves inward and forms groove II 33, the width 1-2mm larger than the thickness of chimb 41 of groove II 33, backing plate 4 is provided with in groove, what backing plate 4 was concrete is silicagel pad, the distance that backing plate 4 exceeds clamp 3 is diametrically 10mm-15mm, backing plate 4 is provided with the chimb 41 coordinated with groove II 33, chimb 41 and groove I 32, groove II 33 coordinates, backing plate 4 exceeds clamp 3 diametrically.
Backing plate 4 first inserts in groove I 32, groove II 33 by fixture in use, drilling rod is clamped at primer fluid compressing cylinder 2, backing plate 4 directly contacts with drilling-rod external wall, avoid drilling-rod external wall directly to contact with clamp 3, because backing plate 4 has cushioning effect and inner wall smooth, therefore can not drilling-rod external wall be damaged when backing plate 4 and drilling-rod external wall contact squeeze, backing plate 4 is detachable, is convenient to the replacing of backing plate 4.
Embodiment 2:
The present embodiment is on the basis of embodiment, and as shown in Figure 1 to Figure 3, clamp 3 is detachable with the connected mode of hydraulic jack 2.
When fixture needs the drilling rod clamping different size, realize by changing clamp 3.
As mentioned above, the present invention can be realized preferably.
Claims (5)
1. the clamping device of fixing drilling rod, comprise two hydraulic clasp unit, hydraulic clasp unit comprises pedestal (1), hydraulic jack (2), the clamp (3) of arcuation, one end of hydraulic jack (2) is fixed on pedestal (1), the other end connects clamp (3), it is characterized in that, described clamp (3) inwall starts fluted (31), the bottom surface of the groove (31) axially vertical with clamp (3) is provided with groove I (32), the sidewall axially parallel with clamp (3) caves inward and forms groove II (33), backing plate (4) is provided with in groove, backing plate (4) is provided with the chimb (41) coordinated with groove II (33), chimb (41) and groove I (32), groove II (33) coordinates, backing plate (4) exceeds clamp (3) diametrically.
2. the clamping device of fixing drilling rod according to claim 1, is characterized in that, described backing plate (4) is silicagel pad.
3. the clamping device of fixing drilling rod according to claim 2, is characterized in that, the distance that described backing plate (4) exceeds clamp (3) is diametrically 10mm-15mm.
4. the clamping device of fixing drilling rod according to claim 1, is characterized in that, described clamp (3) is detachable with the connected mode of hydraulic jack (2).
5., according to the clamping device of the arbitrary described fixing drilling rod of Claims 1-4, it is characterized in that, the width 1-2mm larger than the thickness of chimb (41) of described groove II (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410589495.6A CN104385180A (en) | 2014-10-29 | 2014-10-29 | Clamping mechanism used for fixing drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410589495.6A CN104385180A (en) | 2014-10-29 | 2014-10-29 | Clamping mechanism used for fixing drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104385180A true CN104385180A (en) | 2015-03-04 |
Family
ID=52603186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410589495.6A Pending CN104385180A (en) | 2014-10-29 | 2014-10-29 | Clamping mechanism used for fixing drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104385180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625961A (en) * | 2016-01-05 | 2016-06-01 | 西南石油大学 | Three-joint unit clamping device and clamping method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1752822A (en) * | 1928-07-02 | 1930-04-01 | Richard V Uhrig | Slip for rotary tables and spiders for handling pipe |
| CN2345314Y (en) * | 1998-03-04 | 1999-10-27 | 平顶山煤业(集团)有限责任公司技术中心 | Hydraulic clamping device |
| CN102275079A (en) * | 2010-06-09 | 2011-12-14 | 深圳富泰宏精密工业有限公司 | Positioning jig and using method thereof |
| CN202560128U (en) * | 2012-04-23 | 2012-11-28 | 河南易安能源科技有限公司 | A clamper and a shackle unit using the clamper |
| CN202788666U (en) * | 2012-08-16 | 2013-03-13 | 柳州固瑞机械有限公司 | Drill stem clamping mechanism |
| CN202862060U (en) * | 2012-11-20 | 2013-04-10 | 吴华海 | Detection clamping device for hydraulic station |
| CN103437720A (en) * | 2013-08-29 | 2013-12-11 | 成都科盛石油科技有限公司 | Clamping device |
| CN204183456U (en) * | 2014-10-29 | 2015-03-04 | 成都科盛石油科技有限公司 | For splitting the fixture of multisection type drilling rod |
-
2014
- 2014-10-29 CN CN201410589495.6A patent/CN104385180A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1752822A (en) * | 1928-07-02 | 1930-04-01 | Richard V Uhrig | Slip for rotary tables and spiders for handling pipe |
| CN2345314Y (en) * | 1998-03-04 | 1999-10-27 | 平顶山煤业(集团)有限责任公司技术中心 | Hydraulic clamping device |
| CN102275079A (en) * | 2010-06-09 | 2011-12-14 | 深圳富泰宏精密工业有限公司 | Positioning jig and using method thereof |
| CN202560128U (en) * | 2012-04-23 | 2012-11-28 | 河南易安能源科技有限公司 | A clamper and a shackle unit using the clamper |
| CN202788666U (en) * | 2012-08-16 | 2013-03-13 | 柳州固瑞机械有限公司 | Drill stem clamping mechanism |
| CN202862060U (en) * | 2012-11-20 | 2013-04-10 | 吴华海 | Detection clamping device for hydraulic station |
| CN103437720A (en) * | 2013-08-29 | 2013-12-11 | 成都科盛石油科技有限公司 | Clamping device |
| CN204183456U (en) * | 2014-10-29 | 2015-03-04 | 成都科盛石油科技有限公司 | For splitting the fixture of multisection type drilling rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625961A (en) * | 2016-01-05 | 2016-06-01 | 西南石油大学 | Three-joint unit clamping device and clamping method thereof |
| CN105625961B (en) * | 2016-01-05 | 2018-01-30 | 西南石油大学 | A kind of thribble clamping device and clamp method |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |