CN2908765Y - Power pliers - Google Patents

Power pliers Download PDF

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Publication number
CN2908765Y
CN2908765Y CN 200620115882 CN200620115882U CN2908765Y CN 2908765 Y CN2908765 Y CN 2908765Y CN 200620115882 CN200620115882 CN 200620115882 CN 200620115882 U CN200620115882 U CN 200620115882U CN 2908765 Y CN2908765 Y CN 2908765Y
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CN
China
Prior art keywords
pincers
moment
shell
torsion
clamping seat
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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
Application number
CN 200620115882
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Chinese (zh)
Inventor
温振生
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温振生
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Application filed by 温振生 filed Critical 温振生
Priority to CN 200620115882 priority Critical patent/CN2908765Y/en
Application granted granted Critical
Publication of CN2908765Y publication Critical patent/CN2908765Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The new style power tong essentially comprises an oil motor, an upper tong, a lower tong, a torque oil cylinder, a hydraulic power station and an operation control valve. Structure of the lower tong is basically the same with that of the upper tong. The upper tong and the lower tong are equipped with two flexible torque clamping holders, respectively and the upper tong is also equipped with four flexible rotary clamping holders. The oil cylinder is clamped; rotation angle of the oil cylinder and arm force is small, toque is large and the tong releases and clamps objects slowly; the oil motor has small torque, high rotation speed, and is spun rapidly; the power tong can clamp columns reliably and achieve large torque and great strength. The power tong meet the technological requirements of threaded connection and disassembly of drills; force of clamping oil cylinder is proportional to torque of the torque oil cylinder, as a result, the utility model is safe without damaging drilling tools. In the applicable scope, it is not required to replace or adjust any component although for drilling tools of different specifications. The utility model is driven hydraulically and is operated through change valves, saves manpower and ensures safety. In addition, the torque can be displayed, adjusted, recorded and automatically controlled through programs.

Description

Power clamp
Technical field:
The utility model relates to the oil field equipment field, particularly in geological drilling, the petroleum drilling operation, is used for the instrument of circular tubing string, shackle.Specifically, the utility model relates to a kind of Power Tong that connects or dismantle casing adapter.
Background technology
In geological prospecting, Process of Oil Well Drilling, the screwed drilling rod in two ends, drill collar and various terminal need be linked together, form tubing string.Usually use tongs chucking casing adapter utilizes the cat line pulling force to produce moment of torsion, realizes connecting or dismantling the purpose of tubing string; That tongs has is simple in structure, the chucking reliable, and the characteristics such as volume is little, in light weight, and is easy for operation.But because tongs needs manual operation, labour intensity is big, draws cat head restive, and human casualty accident takes place easily; Successively develop various forms of Power Tongs in recent years both at home and abroad; As: drill pipe tong, sleeve pipe Power Tong, oil pipe Power Tong etc. replace tongs; The Chinese patent notification number is 2565972 patent, relates to a kind of hydraulic pressure drill pipe tong; The Chinese patent publication number is 1450243 patent, and disclosed is a kind of novel drill pipe tong.Existing liquid steam-operating power wrench structure is made up of last pincers, following pincers, opening gear, Hubei Province plate, gearbox, brake, suspension rod, hydraulic power station and operation control valve etc.(referring to accompanying drawing 1) in last pincers, adopts opening gear 31 to drive ramp 32 rotations, promotes to have the dental lamina 34 of roller 33; The outer dynamic braking of warp makes between ramp 32 and the dental lamina 34 and produces relative motion, roller 33 rolls along ramp 32, and dwindle two distances between the dental lamina 34, make two dental laminas 34 chucking tubing strings and rotate with the opening gear, opening gear 31 turns clockwise and realizes buckleing on the tubing string, and opening gear 31 is rotated counterclockwise realizes the tubing string shackle.Power Tong is power with hydraulic pressure, manually-operated hand-operated direction valve, the running of control Power Tong; Parameters such as last, as to unload tubing string screw thread moment of torsion, revolution are controlled; Alleviate labor strength, guaranteed personal safety.But because of the moment of torsion of Power Tong work is bigger, manipulate frequently, cause opening gear 31 shedding deformations easily, ramp 32 and roller 33 wear and tear easily, cause Power Tong chucking tubing string to lose efficacy the lost of life; Again because existing hydraulic power tongs, brake force outside before last button, shackle, must applying earlier, make between ramp 32 and the dental lamina 34 and produce relative motion, roller 33 rolls along ramp 32, just can dwindle distance between two dental laminas, dental lamina 34 could tighten tubing string, and applies and overcome outer brake force, all loses more high-power.
The utility model content
The purpose of this utility model is: for a kind of new type power pincers are provided in oil drilling, the geological prospecting drilling process, finish the connection or the dismounting of drilling rod, drill collar and various casing adapters.Be mainly used in geological prospecting, the petroleum drilling operation, the connection of casing adapter screw thread or dismounting also can be used for releasing or linking closely of other field round tube column joint screw thread.Adopt two groups of chucking rotating mechanisms: one group of little corner of employing high pulling torque is finished and is slowly released or link closely; Another group adopts the high revolution of little moment of torsion to finish quick spinner; Do not have opening gear 31, do not have roller 33 and ramp 32, do not have opening gear 31 distortion and ramp 32 and roller 33 defective easy to wear, need not apply outer brake force, do not have power loss.
The purpose of this utility model is achieved in that and mainly comprises pincers, following pincers, moment of torsion oil cylinder, oil motor, power station and operation control valve.Upper pincers are installed in above the lower pincers, and the centre has rotational slide limited support body to connect.It is characterized in that: the structure of upper pincers and lower pincers is basic identical, is made up of right shell body, left shell, spinner clamping seat, spinner clamping pin, moment of torsion clamping pin, moment of torsion clamping seat, caliper bearing pin, opening oil cylinder pin, opening oil cylinder etc.; There are respectively moment of torsion clamping seat slide rail and spinner clamping seat slide rail in the inboard of right shell body, left shell; Upper pincers left side tail end links to each other with moment of torsion oil cylinder two ends respectively with lower pincers right side tail end; Lower pincers left shell links to each other by the caliper bearing pin with lower pincers right shell body, cut and centered by the caliper bearing pin, to rotate, opening oil cylinder two ends, link to each other with lower pincers right shell body with lower pincers left shell respectively by opening oil cylinder pin, under the effect of opening oil cylinder, lower pincers left shell and lower pincers right shell body can rotate around the caliper bearing pin, dehisce or remain silent with realization; Lower pincers left shell and lower pincers right shell body are equipped with respectively the moment of torsion clamping seat, and are mutually 180 ° by the moment of torsion clamping pin, and the moment of torsion clamping seat can slide in moment of torsion clamping seat slide rail, and the moment of torsion clamping seat is scalable, and stroke is 0~150mm; Upper pincers left shell links to each other by the caliper bearing pin with upper pincers right shell body, cut and centered by the caliper bearing pin, to rotate, opening oil cylinder two ends link to each other with upper pincers right shell body with upper pincers left shell respectively by opening oil cylinder pin, under the effect of opening oil cylinder, upper pincers left shell and upper pincers right shell body can rotate around the caliper bearing pin, dehisce or remain silent with realization; Upper pincers left shell and upper pincers right shell body are equipped with respectively the moment of torsion clamping seat by the moment of torsion clamping pin, in same plane, and are mutually 180 °, and the moment of torsion clamping seat can slide in moment of torsion clamping seat slide rail, and the moment of torsion clamping seat is scalable, and stroke is 0~150mm; Upper pincers left shell and upper pincers right shell body are by the spinner clamping pin, two spinner clamping seats also are housed respectively, the spinner clamping seat is installed in moment of torsion clamping seat both sides, its angle is 8~35 °, and in same plane, the spinner clamping seat can slide in spinner clamping seat slide rail, and the spinner clamping seat is scalable, and its stroke is 0~180mm.
Under the effect of opening oil cylinder, left shell and right shell body are remained silent, when two moment of torsion clamping seats stretch out along moment of torsion clamping seat slide rail, the top connection of upper pincers chucking, the lower contact of lower pincers chucking, when the moment of torsion oil cylinder stretches out, make the relatively lower pincers of pincers reverse 0~50 °, can realize that the little corner of high pulling torque slowly releases or links closely; When the spinner clamping seat stretches out along spinner clamping seat slide rail, promote the top connection of spinner wheel chucking tubing string, the rotation of spinner chucking wheel realizes the quick spinner of the high revolution of little moment of torsion under the oil motor effect; Above-mentionedly release, link closely, spinner all moves, and can finish connection or the dismounting of tubing string.
The utility model has the advantages that: 1, oil cylinder chucking tubing string, the chucking tubing string is reliable; 2, applied widely, various drilling rods, drill collar and the joint of application diameter 120~203mm need not changed any accessory; 3, oil cylinder, the little corner of arm of force high pulling torque slowly release or link closely, and can realize high pulling torque, high strength, have effectively satisfied the technological requirement that drilling tool is threaded or dismantles; 4, the clamping force of the moment of torsion chucking seat variation that is directly proportional with moment of torsion that the moment of torsion oil cylinder is produced, reliable operation is not damaged drilling tool; 5, moment of torsion chucking seat and spinner chucking seat all are clamped on the casing adapter, do not damage the tubing string body; 6, fluid power drives, and manpower is saved in the reversal valve operation, reduces labor intensity, and guarantees personal safety; 7, moment of torsion can show, adjusting, record, but procedure auto-control.Overcome the gear opening easy deformation of existing hydraulic power tongs, the shortcoming that application life is short.The utility model does not adopt ramp to drive roller and rolls along ramp, and the scheme of chucking tubing string has overcome on the existing hydraulic power tongs, shackle braking earlier, causes the shortcoming of power loss.
Below by drawings and Examples this utility model further is illustrated.
Description of drawings
The structure of Fig. 1, existing hydraulic power tongs and operating principle schematic diagram.
Fig. 2, new type power wrench structure and operating principle schematic diagram (main looking).
Fig. 3, new type power wrench structure and operating principle schematic diagram (overlooking).
Fig. 4, power clamp generalized section, (the lower wrench structure of expression and operation principle).
Fig. 5, power clamp generalized section, (wrench structure and operation principle in the expression).
The specific embodiment
Embodiment: referring to Fig. 2-4, power clamp mainly comprises oil motor 21, upper pincers 22, lower pincers 24, moment of torsion oil cylinder 23; Hydraulic power station and operation control valve are joined in addition.There is rotational slide limited support body to connect between upper pincers 22 and the lower pincers 24; It is characterized in that: on clamp 22 and the structure of lower pincers 24 basic identical: right shell body 1, left shell 2, moment of torsion clamping pin 5, moment of torsion clamping seat 6, caliper bearing pin 7, opening oil cylinder pin 8, opening oil cylinder 9 are arranged; Moment of torsion clamping seat 6 is installed in respectively on right shell body 1 and the left shell 2 by two moment of torsion clamping pins 5, and two moment of torsion clamping seats 6 are mutually 180 °, and in same plane; Moment of torsion clamping seat 6 front ends are equipped with the pincers tooth; Moment of torsion clamping seat 6 can slide at right shell body 1, left shell 2 tracks; Upper pincers 22 and lower pincers 24 are except the same composition part, and upper pincers 22 also are equipped with spinner clamping seat 3, spinner chucking seat pin 4; Two spinner clamping seats 3 are installed in respectively on the right shell body 1 and left shell 2 of pincers 22 by spinner chucking seat pin 4, and with moment of torsion clamping seat 6 both sides, angle becomes 8~35 °, and in same plane; Spinner clamping seat 3 front ends are equipped with the spinner wheel; Spinner clamping seat 3 can slide at right shell body 1, left shell 2 tracks.
When narration dismounting tubing string screw thread or tube connector male screw, each parts action and role of power clamp help to understand the utility model.Using power clamp dismounting tubing string screw thread or tube connector male screw, is two different duties; Below respectively narration:
1, new type power pincers dismounting tubing string screw thread: the male and female joint line of demarcation that is disassembled tubing string, place between pincers 22 and the following pincers 24, the operation control valve handle allows opening oil cylinder 9 stretch out, and makes pincers 22 and clamps 24 opening closures down; The operation control valve handle, after moment of torsion chucking seat 6 stretches out, on clamp 22 chucking top connections, following pincers 24 tighten lower contacts; The operation control valve handle allows moment of torsion oil cylinder 23 stretch out, and can finish little corner high pulling torque and slowly release; The operation control valve handle makes pincers 22 moments of torsion chucking seat 6 withdrawal original positions, unclamps the tubing string top connection; The operation control valve handle makes moment of torsion oil cylinder 23 withdrawal original positions; The operation control valve handle stretches out spinner chucking seat 3 and tightens the tubing string top connection; The operation control valve handle, the spinner wheel that makes oil motor 21 drive spinner chucking seat 3 front ends is rotated counterclockwise, up to unloading open tubular column fully; The operation control valve handle makes spinner chucking seat 3 withdrawal original positions; The operation control valve handle makes down the moment of torsion chucking seat 6 withdrawal original positions on the pincers 24; The operation control valve handle makes two opening oil cylinders, 9 withdrawal original positions; Promptly finishing dismounting tubing string screw thread all works.
2, new type power clipper joint tubing string screw thread: the male and female joint line of demarcation that is connected tubing string, place between pincers 22 and the following pincers 24, the operation control valve handle allows opening oil cylinder 9 stretch out, and makes pincers 22 and clamps 24 opening closures down.
The operation control valve handle stretches out the moment of torsion chucking seat 6 of pincers on 24, and the lower contact of chucking tubing string, and the operation control valve handle stretches out spinner chucking seat 3 and tightens the tubing string top connection; The operation control valve handle, the spinner wheel that makes oil motor 21 drive spinner chucking seat 3 front ends turns clockwise and finishes button; The operation control valve handle makes spinner chucking seat 3 withdrawal original positions; The operation control valve handle stretches out moment of torsion oil cylinder 23; The operation control valve handle stretches out pincers 22 moments of torsion chucking seat 6 and tightens the tubing string top connection; The operation control valve handle makes 6 withdrawals of pincers 22 moments of torsion chucking seat, can finish and link closely; The operation control valve handle makes the moment of torsion chucking seat 6 withdrawal original positions on the pincers pincers 22; The operation control valve handle makes down the moment of torsion chucking seat 6 withdrawal original positions on the pincers 24; The operation control valve handle makes two opening oil cylinders, 9 withdrawal original positions; Promptly finishing the tube connector male screw all works.

Claims (5)

1, a kind of power clamp mainly comprises pincers, lower pincers, moment of torsion oil cylinder, oil motor, power station and operation control valve; Upper pincers are installed in above the lower pincers, the centre has rotational slide limited support body to connect, it is characterized in that: the structure of upper pincers and lower pincers is basic identical, is made up of right shell body, oil motor, left shell, spinner clamping seat, spinner clamping pin, moment of torsion clamping pin, moment of torsion clamping seat, caliper bearing pin, opening oil cylinder pin, opening oil cylinder; There are respectively moment of torsion clamping seat slide rail and spinner clamping seat slide rail in right shell body, left shell inboard; Upper pincers left side tail end links to each other with moment of torsion oil cylinder two ends respectively with lower pincers right side tail end; Lower pincers left shell links to each other by the caliper bearing pin with lower pincers right shell body, cut and centered by the caliper bearing pin, to rotate, opening oil cylinder two ends link to each other with lower pincers right shell body with lower pincers left shell respectively by opening oil cylinder pin, under the effect of opening oil cylinder, lower pincers left shell and lower pincers right shell body can rotate around the caliper bearing pin, dehisce or remain silent with realization; Lower pincers left shell and lower pincers right shell body are by the moment of torsion clamping pin, the moment of torsion clamping seat is housed respectively, and be mutually 180 °, the moment of torsion clamping seat can slide in moment of torsion clamping seat slide rail, the moment of torsion clamping seat is scalable, stroke is 0~150mm, upper pincers left shell links to each other by the caliper bearing pin with upper pincers right shell body, cut and centered by the caliper bearing pin, to rotate, opening oil cylinder two ends link to each other with upper pincers right shell body with upper pincers left shell respectively by opening oil cylinder pin, under the effect of opening oil cylinder, upper pincers left shell and upper pincers right shell body can rotate around the caliper bearing pin, dehisce or remain silent with realization; Upper pincers left shell and upper pincers right shell body are equipped with respectively the moment of torsion clamping seat, and are mutually 180 ° by the moment of torsion clamping pin, and the moment of torsion clamping seat can slide in moment of torsion clamping seat slide rail, and the moment of torsion clamping seat is scalable, and stroke is 0~150mm; Upper pincers left shell and upper pincers right shell body also are equipped with respectively two spinner clamping seats by the spinner clamping pin, and the spinner clamping seat is installed in moment of torsion clamping seat both sides, its angle is 8~35 °, and the spinner clamping seat can slide in spinner clamping seat slide rail, and the spinner clamping seat is scalable, its stroke is 0~180mm
Under the effect of opening oil cylinder, left shell and right shell body are remained silent, when two moment of torsion clamping seats stretch out along moment of torsion clamping seat slide rail, and the top connection of upper pincers chucking, the lower contact of lower pincers chucking when the moment of torsion oil cylinder is flexible, makes the relatively lower pincers of pincers reverse certain angle.
2, power clamp as claimed in claim 1, it is characterized in that: lower pincers left shell and lower pincers right shell body are by the moment of torsion clamping pin, the moment of torsion clamping seat is housed respectively, in same plane, and be mutually 180 °, the moment of torsion clamping seat can slide in moment of torsion clamping seat slide rail, and the moment of torsion clamping seat is scalable, and stroke is 0~150mm.
3, power clamp as claimed in claim 1, it is characterized in that: on clamp left shell and upper pincers right shell body by the moment of torsion clamping pin, the moment of torsion clamping seat is housed respectively, in same plane, and be mutually 180 °, the moment of torsion clamping seat can slide in moment of torsion clamping seat slide rail, and the moment of torsion clamping seat is scalable, and stroke is 0~150mm.
4, power clamp as claimed in claim 1, it is characterized in that: on clamp left shell and upper pincers right shell body by the spinner clamping pin, two spinner clamping seats also are housed respectively, the spinner clamping seat is installed in moment of torsion clamping seat both sides, its angle is: 8~35 °, and in same plane, the spinner clamping seat can slide in spinner clamping seat slide rail, the spinner clamping seat is scalable, and its stroke is 0~180mm.
5, power clamp as claimed in claim 1 is characterized in that: when two moment of torsion clamping seats stretch out along moment of torsion clamping seat slide rail, and the top connection of upper pincers chucking, the lower contact of lower pincers chucking when the moment of torsion oil cylinder is flexible, makes the relatively lower pincers of pincers reverse 0~50 °.
CN 200620115882 2006-05-19 2006-05-19 Power pliers Expired - Fee Related CN2908765Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620115882 CN2908765Y (en) 2006-05-19 2006-05-19 Power pliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620115882 CN2908765Y (en) 2006-05-19 2006-05-19 Power pliers

Publications (1)

Publication Number Publication Date
CN2908765Y true CN2908765Y (en) 2007-06-06

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101970791A (en) * 2008-01-24 2011-02-09 M·W.·霍拉迪 Sucker rod coupling extractor
CN105221087A (en) * 2015-11-12 2016-01-06 中煤科工集团西安研究院有限公司 Truck-mounted drilling rig drilling rod top screw thread unscrewing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101970791A (en) * 2008-01-24 2011-02-09 M·W.·霍拉迪 Sucker rod coupling extractor
CN101970791B (en) * 2008-01-24 2014-04-16 M·W.·霍拉迪 Sucker rod coupling extractor
CN105221087A (en) * 2015-11-12 2016-01-06 中煤科工集团西安研究院有限公司 Truck-mounted drilling rig drilling rod top screw thread unscrewing device

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee