CN1523198A - Back-up tong binding clip chucking mechanism for open type power-driven clamp - Google Patents
Back-up tong binding clip chucking mechanism for open type power-driven clamp Download PDFInfo
- Publication number
- CN1523198A CN1523198A CNA031576931A CN03157693A CN1523198A CN 1523198 A CN1523198 A CN 1523198A CN A031576931 A CNA031576931 A CN A031576931A CN 03157693 A CN03157693 A CN 03157693A CN 1523198 A CN1523198 A CN 1523198A
- Authority
- CN
- China
- Prior art keywords
- tong
- gear
- dental lamina
- main body
- gear ring
- 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
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/164—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated
Abstract
The present invention relates to an open mouth type power tongs of back tongs binding clip fastening mechanism for mounting and dismounting pipe thread. It is mainly composed of main components of back tongs main body, back tongs head cover plate, butterfly jaw plate, outward-curved toothed plate, hub spline, epicyclic gear, core shaft, gear ring, stopper pin and handhold shaft. Said invention also provides their assembly structure and connection relationship, and its fastening performance is good and its working efficiency is high.
Description
Technical field
The present invention relates to unload the Power Tong of gas pipe thread, particularly open-type Power Tong back-up tong binding clip clamping body.
Background technology
Existing open-type Power Tong back-up tong binding clip clamping body is the inner camber and climbing roller chucking.Its primary structure form is: in the cavity of back-up tong main body and the containing of back-up tong epicranial plate four negative camber ramps are arranged, roller is contained on the jaw, jaw is contained in the square hole of jaw plate frame, when jaw plate frame turns an angle with respect to the back-up tong main body, roller rolls along the ramp negative camber and climbs, constitute radially translation of jaw, make dental lamina contact tubing string, realize fixedly tubing string, guarantee to unload the screw thread normal running on the main pincers, as the patent No. be: ZL94213128.2, name is called: a kind of patented technology of novel hydraulic back pincers is exactly this form of structure, each group chucking part of this mechanism can only tighten a kind of specific tube column dimension, must change roller when blocking different tubing string, jaw, the part of tooth seat and so on.This mechanism is complex structure not only, blocks different tubing string renewal parts and give to make, and uses and keeps in repair and all bring many inconvenience.Because the chucking part is responsive to the caliber deviation by the configuration of specific tube column dimension, when caliber is bigger than normal, skids easily, when caliber was less than normal, easy again stuck pine did not open.By the disclosed application number of China Intellectual Property Office be in the recent period: 01101342.7, name is called: the back-up tong in a kind of planet pawl formula open-type Power Tong binding clip clamping body, its primary structure form is: each planet pawl is supported on the planet carrier together with planetary gear, rotate around mandrel, each planetary gear is meshed with the internal tooth up and down of back-up tong main body inboard up and down, bear the transmission of binding clip moment of torsion, planet carrier turns an angle with respect to the back-up tong main body, drive each planet pawl rotation and make outcurve dental lamina contact tubing string, realize not renewal part of forward and reverse fixing any tubing string caliber.This structure still has the following disadvantages: the one,, back-up tong main body inner chamber upper and lower settings internal tooth and planetary gear engagement, particularly bottom internal tooth engagement is in case have iron filings or other hard foreign material to enter Meshing Pair, Meshing Pair will be stuck, will remove the necessary disassemble binding clip of foreign material; The 2nd,, to work the whole story, the last lower connecting plate of planet carrier will turn an angle with respect to the back-up tong main body.Because infull unanimity of the distortion of relevant stressed part and mechanical admixture enter and relatively rotate the slit, will make to relatively rotate and be obstructed, the chucking action is malfunctioning; The 3rd,, planetary gear bears the transmission of binding clip moment of torsion, for satisfying requirement of strength, planetary gear must have enough axial dimensions, and this not only makes complex structure, and has taken the dental lamina height space, for satisfying the dental lamina requirement for height, must increase back-up tong head axial dimension, this is subjected under the condition of strict restriction in drilling well tong clamping head, main pincers and back-up tong spacing, and this clamping body is with inapplicable; As reduce the dental lamina height, and can make dental lamina intensity variation again, and the tubing string surface damage is strengthened, also will make this mechanism inapplicable.
Purpose of the present invention is exactly to overcome the weak point that the different tubing strings of prior art inner camber and climbing roller clamping body card must be changed component, also will overcome application number is: the above-mentioned defective of 01101342.7 patent of invention technology, release a kind of novel back-up tong binding clip clamping body, this mechanism does not have planet carrier to rotate with respect to the back-up tong main body, back-up tong main body inner chamber bottom is not provided with planetary gear and internal tooth engagement, the engagement of gear ring and planetary gear only is set on back-up tong main body top to be driven the rotation of butterfly jaw and not to transmit the binding clip moment of torsion, make the Power Tong back-up tong on a large scale in any tubing string size of forward and reverse continuous chucking do not change any component, and structure is simpler, the chucking more reliable performance.
Summary of the invention
Technical scheme of the present invention is: a kind of open-type Power Tong back-up tong binding clip clamping body, form by major parts such as back-up tong main body, back-up tong epicranial plate, butterfly jaw, outcurve dental lamina, dental lamina block, dental lamina screw, hub splines, mandrel, planetary gear, gear ring, backing pin, rotation axis, knob gear, handle gears.Back-up tong main body and back-up tong epicranial plate are anchored on one by screw attachment, the dental lamina block is welded on the butterfly jaw, the outcurve dental lamina by the dental lamina block spacing and by the dental lamina screw on the butterfly jaw, the butterfly jaw is connected in series fastening with planetary gear You Hua Key axle sleeve and is contained on the mandrel, each mandrel is contained in back-up tong main body and back-up tong epicranial plate at om, on, of, in the axis hole on the og center line, between back-up tong main body top and back-up tong epicranial plate, gear ring is housed, the internal tooth of gear ring is meshed with each planetary gear, the local external tooth of gear ring is meshed with the back-up tong travelling gear, gear ring top has local inner cylinder face to cooperate with the local external cylindrical surface of back-up tong epicranial plate, the gear ring bottom has external cylindrical surface to cooperate with the inner cylinder face of back-up tong main body, backing pin is contained on the gear ring, rotation axis is contained on the back-up tong epicranial plate, and dress knob gear in rotation axis outer end is meshed with handle gear on being contained in the back-up tong epicranial plate.
Enforcement of the present invention, not only realize the open-type Power Tong back-up tong any caliber of forward and reverse continuous chucking renewal part not on a large scale, and clamping body is simpler, the chucking more reliable performance, use maintenance more convenient, applicability is wider, and back-up tong turns to the control operation environment to be improved, society and remarkable in economical benefits.
Description of drawings
Fig. 1 is the structural representation of a kind of open-type Power Tong of the present invention back-up tong binding clip clamping body.
Fig. 2 is the A-A sectional view of Fig. 1
Fig. 3 is the B-B sectional view of Fig. 1
The specific embodiment
As Fig. 1,2, shown in 3, a kind of open-type Power Tong back-up tong binding clip clamping body, by back-up tong main body 1, back-up tong epicranial plate 9, butterfly jaw 2, outcurve dental lamina 5, dental lamina block 6, dental lamina screw 7 Hua Key axle sleeves 3, mandrel 4, planetary gear 14, gear ring 13, backing pin 12, rotation axis 11, knob gear 10, main part such as handle gear 8 grades is formed, back-up tong main body 1 and back-up tong epicranial plate 9 are anchored on one by screw attachment, dental lamina block 6 is welded on the butterfly jaw 2, outcurve dental lamina 5 is spacing and be fixed on the butterfly jaw 2 by dental lamina screw 7 by dental lamina block 6, shed dental lamina screw 7, promptly replaceable outcurve dental lamina 5.The cusp contour curve of outcurve dental lamina 5 is tried to achieve by special computational methods, center-of-curvature line departs from mandrel 4 centers, when the cusp of outcurve dental lamina 5 contacts any caliber, the tangential force that the pipe contact point is born and the ratio of radial pressure are a setting constant, guaranteed that skidding does not appear in any caliber of forward and reverse continuous chucking in setting range, chucking also do not occurred excessively.Butterfly jaw 2 is connected in series fastening with planetary gear 14 You Hua Key axle sleeves 3 and is contained on the mandrel 4, each mandrel 4 is contained in back-up tong main body 1 and back-up tong epicranial plate 9 at om, on, of, can not rotate in the axis hole on the og center line between Ge Hua Key axle sleeve 3 of and the mandrel 4 to movingly, between back-up tong main body 1 top and back-up tong epicranial plate 9, gear ring 13 is housed, the internal tooth of gear ring 13 and 14 engagements of each planetary gear, the local external tooth of gear ring 13 and the engagement of back-up tong travelling gear, this transmission only works to drive each butterfly jaw and rotates, because not bearing, planetary gear 14 and gear ring 13 do not transmit the binding clip moment of torsion, physical dimension is less, and it is very few to take the dental lamina height.Gear ring 13 has local inner cylinder face 15 to cooperate with the local external cylindrical surface of back-up tong epicranial plate, make back-up tong epicranial plate 9 bear the engagement thrust of 17 pairs of gear rings 13 of back-up tong travelling gear, gear ring 13 also has external cylindrical surface 16 to cooperate with the inner cylinder face of back-up tong main body 1, make back-up tong main body 1 bear the engagement thrust of 14 pairs of gear rings 13 of planetary gear, backing pin 12 is contained on the gear ring 13, rotation axis 11 is contained on the back-up tong epicranial plate 9 and is in the concentric position with backing pin 12, the rotation axis lower end is provided with breach, inboard at back-up tong epicranial plate 9 is provided with annular groove with rotation axis 11 symmetrical both sides, with satisfy backing pin 12 with gear ring 13 with respect to back-up tong epicranial plate 9 forward and reverse space requirements that turn an angle, thus, rotation axis 11 constitutes back-up tong with backing pin 12 and turns to controlling organization, in rotation axis 11 outer ends, handle gear 8 on knob gear 10 being housed and being contained in back-up tong epicranial plate 9 is meshed, pull control stick, at less angular range rotation axis 11 positive and negative 180 ° fastenedly, make in the prior art, sight line is kept off, and is in narrow space hand between the main pincers back-up tong and pulls the manual operation environment of knob and be improved.
When Power Tong is in the button operating mode, pull the control stick of handle gear 8, make rotation axis lower end breach towards counterclockwise, start the back-up tong driving mechanism, gear ring 13 is counterclockwise turned an angle, drive each planetary gear 14 together with 2 rotations counterclockwise of butterfly jaw, make outcurve dental lamina 5 contact tubing strings, stop tubing string to rotate, guarantee that the master clamps thread up reliably, last button finishes.Main pincers counter-rotating is to breach, and back-up tong gearing driving gear wheel rim 13 clockwise directions rotate, and forward backing pin 12 to and are kept off by rotation axis 11, this moment, each butterfly jaw was got back to the meta assurance, it is without hindrance to adapt to maximum caliber turnover, and the back-up tong driving mechanism stops to drive, and finishes and once goes up the button operation.During shackle, vice versa.
Claims (2)
1. open-type Power Tong back-up tong binding clip clamping body, by back-up tong main body (1), back-up tong epicranial plate (9), butterfly jaw (2), outcurve dental lamina (5), dental lamina block (6), dental lamina screw (7), hub splines (3), mandrel (4), planetary gear (14), gear ring (13), backing pin (12), rotation axis (11), knob gear (10), main part such as handle gear (8) is formed, back-up tong main body (1) is connected by screw with back-up tong epicranial plate (9) and is anchored on one, dental lamina block (6) is welded on the butterfly jaw (2), outcurve dental lamina (5) is spacing and be fixed on the butterfly jaw (2) by dental lamina screw (7) by dental lamina block (6), butterfly jaw (2) is connected in series fastening with planetary gear (14) by hub splines (3) and is contained on the mandrel (4), each mandrel (4) is contained in back-up tong main body (1) and back-up tong epicranial plate (9) at om, on, of, in the axis hole on the og center line, it is characterized in that: between back-up tong main body (1) top and the back-up tong epicranial plate (9) gear ring (13) is housed, the internal tooth of gear ring (13) and each planetary gear (14) engagement, the local external tooth of gear ring (13) and back-up tong travelling gear (17) engagement, gear ring (13) top has local inner cylinder face (15) to cooperate with the local external cylindrical surface of back-up tong epicranial plate (9), gear ring (13) bottom has external cylindrical surface (16) to cooperate with the inner cylinder face of back-up tong main body (1), and backing pin (12) is contained on the gear ring (13).
2. a kind of open-type Power Tong back-up tong binding clip clamping body as claimed in claim 1, it is characterized in that: the handle gear (8) on rotation axis (11) outer end is equipped with knob gear (10) and is contained in back-up tong epicranial plate (9) is meshed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031576931A CN1293280C (en) | 2003-09-06 | 2003-09-06 | Back-up tong binding clip chucking mechanism for open type power-driven clamp |
| PCT/CN2004/000973 WO2005038191A1 (en) | 2003-09-06 | 2004-08-20 | A chucking mechanism of back-up tong head of open type dynamic clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031576931A CN1293280C (en) | 2003-09-06 | 2003-09-06 | Back-up tong binding clip chucking mechanism for open type power-driven clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523198A true CN1523198A (en) | 2004-08-25 |
| CN1293280C CN1293280C (en) | 2007-01-03 |
Family
ID=34287172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031576931A Expired - Fee Related CN1293280C (en) | 2003-09-06 | 2003-09-06 | Back-up tong binding clip chucking mechanism for open type power-driven clamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1293280C (en) |
| WO (1) | WO2005038191A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920241B (en) * | 2005-08-24 | 2012-09-12 | 付蕾 | Drilling hydraulic power cramp |
| CN103147699A (en) * | 2013-03-18 | 2013-06-12 | 西南石油大学 | Screw drill mounting and dismounting support for centering |
| CN103953303B (en) * | 2014-05-04 | 2016-06-15 | 江苏如通石油机械股份有限公司 | A kind of novel tube rod closed power tong |
| CN109577884A (en) * | 2018-12-20 | 2019-04-05 | 江苏徐工工程机械研究院有限公司 | A kind of maintainance block unloads rod structure and the deep drilling rig using the structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225483A (en) * | 2013-04-16 | 2013-07-31 | 西安石油大学 | On/off unidirectional self-locking rolling body pincer teeth of oil pipe column |
| CN111472699A (en) * | 2019-01-24 | 2020-07-31 | 江苏如通石油机械股份有限公司 | Back-up tong |
| AU2020100770A4 (en) * | 2019-08-19 | 2020-06-25 | DDH1 Drilling Pty Ltd | Electrically driven haul plug |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172613A (en) * | 1989-12-07 | 1992-12-22 | Wesch Jr William E | Power tongs with improved gripping means |
| GB9019416D0 (en) * | 1990-09-06 | 1990-10-24 | Frank S Int Ltd | Device for applying torque to a tubular member |
| CN2154343Y (en) * | 1993-05-26 | 1994-01-26 | 杨春会 | Planetary claw double-way clamping sturture of power pliers |
| CN2286495Y (en) * | 1994-05-29 | 1998-07-22 | 杨春会 | Hydraulic back-up torg |
| US5823074A (en) * | 1995-12-14 | 1998-10-20 | Oil Country Manufacturing, Inc. | Open head foster-style back-up tong |
| CN2399506Y (en) * | 1999-08-20 | 2000-10-04 | 大港油田集团钻采工艺研究院 | Back tongs appts. of top-driving well drilling |
| CN2463532Y (en) * | 2000-11-17 | 2001-12-05 | 金红玲 | Pneumatic casing back-up tongs |
| CN2656608Y (en) * | 2003-09-13 | 2004-11-17 | 傅永森 | Open type power tongs back tong head clamping mechanism |
-
2003
- 2003-09-06 CN CNB031576931A patent/CN1293280C/en not_active Expired - Fee Related
-
2004
- 2004-08-20 WO PCT/CN2004/000973 patent/WO2005038191A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920241B (en) * | 2005-08-24 | 2012-09-12 | 付蕾 | Drilling hydraulic power cramp |
| CN103147699A (en) * | 2013-03-18 | 2013-06-12 | 西南石油大学 | Screw drill mounting and dismounting support for centering |
| CN103147699B (en) * | 2013-03-18 | 2014-12-10 | 西南石油大学 | Screw drill mounting and dismounting support for centering |
| CN103953303B (en) * | 2014-05-04 | 2016-06-15 | 江苏如通石油机械股份有限公司 | A kind of novel tube rod closed power tong |
| CN109577884A (en) * | 2018-12-20 | 2019-04-05 | 江苏徐工工程机械研究院有限公司 | A kind of maintainance block unloads rod structure and the deep drilling rig using the structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005038191A1 (en) | 2005-04-28 |
| CN1293280C (en) | 2007-01-03 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070103 Termination date: 20200906 |