CN103939037B - Iron roughneck - Google Patents
Iron roughneck Download PDFInfo
- Publication number
- CN103939037B CN103939037B CN201410115543.8A CN201410115543A CN103939037B CN 103939037 B CN103939037 B CN 103939037B CN 201410115543 A CN201410115543 A CN 201410115543A CN 103939037 B CN103939037 B CN 103939037B
- Authority
- CN
- China
- Prior art keywords
- assembly
- rocking arm
- roller
- lateral frame
- square tube
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses an iron roughneck. The iron roughneck comprises a rotary bracket, a pair of buckle collapsing pliers and a spinning wrench. The rotary bracket comprises a stand column, an L-shaped bracket body, a rotating base, a rotating gear and a lifting hydraulic cylinder. The pair of buckle collapsing pliers comprises a rotating shaft assembly, a hydraulic clamping pliers assembly, a rotating shaft base, a rotating hydraulic cylinder assembly and a rotating and guide pushing hydraulic cylinder assembly. The spinning wrench comprises a support, a first rocker arm, a second rocker arm, a first connecting frame rod, a second connecting frame rod, a first roller wrench assembly, a second roller wrench assembly, a clamping hydraulic cylinder, a first balancing connecting rod, a second balancing connecting rod and a balancing pin roll. Compared with the prior art, the iron roughneck is complete in function, compact in structure and high in automation degree, saves manpower, lowers production cost, enables buckle assembly and buckle disassembly to be mechanized, improves the working efficiency, and meanwhile can further adjust the buckle assembly and disassembly torque and buckle assembly and disassembly thread travel compensation, protect drill rod threads, and reduce the frequency of equipment replacement and maintenance.
Description
Technical field
The present invention relates to drilling rig technique field is and in particular to a kind of iron driller for drilling well or well workover.
Background technology
At present, in oil drilling and workover treatment, the drilling tool during making a trip connects and dismantlement work is substantially
By the artificial equipment by some mechanizations, such as liquid gas tong, Caput Felis domestica, pneumatic rotary clasping clamp etc. is completing.These mechanized equipments
There is still a need for artificial operate at well head, labor intensity is very big, and the safety of operator can not effectively be ensured, manually
Cost is consequently increased.With regard to the said equipment itself, drilling tool connects and the speed of dismounting is slow, directly influences brill, well workover effect
Rate；Meanwhile, the drilling tool scope that these equipment adapt to is narrower it is impossible to enough adjust upper break-out torque and stroke according to real-time working condition,
Larger to the thread damage of drilling tool, result needs often to change, and makes drilling tool connection, dismounting and maintenance more inconvenient.
Content of the invention
For solving the above problems, it is an object of the invention to provide a kind of iron driller for drilling well or well workover, this anvil
Work is multiple functional, compact conformation, can not only simplify well head operation, improves work efficiency moreover it is possible to adjusting upper break-out torque and above unloading
Button screw thread travel compensates, and plays the effect of protection drill rod thread.
For reaching above-mentioned purpose, the technical solution used in the present invention is：A kind of iron driller, including rotary support, spinner
Clamp and collapse clasp forceps, described rotary support carries chipping pincers, the top of chipping pincers is provided with turnbuckle clamp；
Described rotary support includes column, L-bracket, rotating base, swing pinion, lifting hydraulic cylinder, described column
It is made up of interior square tube and outer square tube, outer square tube is slidably set on the outer wall of interior square tube, the upper and lower ends of described interior square tube
It is provided with rotating base, the rotating base of described interior square tube upper end is additionally provided with the rotary teeth that interior square tube can be driven to rotate
Wheel, described L-bracket is made up of perpendicular supporting plate and horizontal shelf, and perpendicular supporting plate is fixed on the outer wall of described outer square tube, described raising
One end of hydraulic cylinder is fixedly connected with perpendicular supporting plate, and the other end is fixedly connected with the upper end of interior square tube；Further, described perpendicular supporting plate
It is fixed on the outer wall of described outer square tube by dismountable securing member.
Described turnbuckle clamp includes support, the first rocking arm, the second rocking arm, the first side link, the second side link, the first roller pincers
Assembly, the second roller pincers assembly, clamping fluid cylinder, the first balanced connecting rod, the second balanced connecting rod, balance bearing pin；Described support is by front
Portion's lateral frame and posterior bracket composition, anterior lateral frame forms inverse-T-shaped structure with posterior bracket；Described first rocking arm is arranged on
The left side of anterior lateral frame, the middle part of the first rocking arm is hinged with the left end of anterior lateral frame, and described first roller pincers assembly sets
Put in front of the left part of anterior lateral frame, the left end that assembly is clamped with the first roller in the front end of the first rocking arm is hinged, described first even
The two ends of hack lever connect the left part of anterior lateral frame respectively and the first roller clamps the middle part of assembly, described support, the first rocking arm, the
One roller clamps assembly and the first side link forms the endplay device of parallelogram；Described second rocking arm is arranged on anterior lateral frame
Right side, the middle part of the second rocking arm is hinged with the right end of anterior lateral frame, and described second roller pincers assembly is arranged on anterior horizontal stroke
In front of the right part of support, the right-hand member that assembly is clamped with the second roller in the front end of the second rocking arm is hinged, the two ends of described second side link
Connect the right part of anterior lateral frame respectively and the second roller clamps the middle part of assembly, described support, the second rocking arm, the second roller pincers are total
Become to form the endplay device of parallelogram with the second side link, described first roller pincers and the second roller pincers are to be symmetrical arranged
's；The chute of fore-and-aft direction is provided with portion's support, described balance bearing pin is slidably installed in described chute, institute in the rear
The one end stating the first balanced connecting rod is hinged with the rear end of the first rocking arm, the other end and described balance hinge, and described second is flat
One end of weighing apparatus connecting rod is hinged with the rear end of the second rocking arm, the other end and described balance hinge；The two ends of described clamping fluid cylinder
Hinged with the rear end of the first rocking arm and the rear end of the second rocking arm respectively；Also open up pilot hole at the middle part of described front portion lateral frame,
Guiding in the hole is provided with the vertical axis of guide, and the axis of guide below the lateral frame of described front portion is arranged with back-moving spring.
Further, leave gap between described balance bearing pin and described chute；Described first side link and the first roller
Hinged employing hinge hole in the middle part of pincers assembly and the articulated manner of jointed shaft, and between hinge hole and jointed shaft, leave gap；Institute
State the articulated manner that the second side link and the second roller clamp the hinged employing hinge hole in the middle part of assembly and jointed shaft, and hinge hole with
Gap is left between jointed shaft.
Due to present invention employs technique scheme, described rotary support passes through external impetus equipment and hydraulic system
Drive to realize horizontal station and the conversion of height station respectively；Described rotation brank not only enables quickly to position it is ensured that centering
Clamping drill string, and drilling rod can be done with small size floating, effectively protection drilling rod body and screw thread；Described chipping clamps as existing skill
Art, not only enables the auto-strengthening of drilling rod moreover it is possible to realization is quickly gone up, shackle works.On the whole, include rotary support
The present invention of frame, rotation brank and chipping pincers is multiple functional, compact conformation, and high degree of automation saves manpower, reduces production
Cost, makes, shackle mechanization, improves work efficiency, can also adjust break-out torque simultaneously and upper shackle screw thread travel compensates,
Protect drill rod thread, it is to avoid the number of times of equipment replacement maintenance.
Brief description
Below in conjunction with the accompanying drawings and embodiment, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of rotary support in the present invention；
Fig. 3 is the overlooking the structure diagram of turnbuckle clamp in the present invention；
Fig. 4 is the cross section structure diagram of turnbuckle clamp in the present invention.
Specific embodiment
Referring to shown in Fig. 1, a kind of iron driller, including rotary support 1, turnbuckle clamp 2 and collapse clasp forceps 3, described rotary
Chipping pincers 3 accepted by bracket 1, and the top of chipping pincers is provided with turnbuckle clamp 2.
Referring to shown in Fig. 2, the rotary support of described iron driller includes：Column 4, L-bracket 5, rotating base 6, rotation
Gear 7, lifting hydraulic cylinder 8, described column 4 is made up of interior square tube 4.1 and outer square tube 4.2, and outer square tube 4.2 is slidably set in
On the outer wall of interior square tube 4.1, the upper and lower ends of described interior square tube 4.1 are provided with rotating base 6, described interior square tube 4.1 upper end
Rotating base 6 on be additionally provided with the swing pinion 7 that interior square tube 4.1 can be driven to rotate, described L-bracket 5 is by perpendicular supporting plate 9 and water
Lifts plate 10 forms, and perpendicular supporting plate 9 is fixed on the outer wall of described outer square tube 4.2, one end of described lifting hydraulic cylinder 8 and perpendicular supporting plate
9 are fixedly connected, and the other end is fixedly connected with the upper end of interior square tube 4.1.
Further, described perpendicular supporting plate 9 is fixed on the outer wall of described outer square tube 4.2 by dismountable securing member.
Described chipping clamps as prior art, including rotating shaft assembly, hydraulic clip clencher assembly, shaft seat, rotation fluid cylinder assembly,
Rotate and guide and promote fluid cylinder assembly, rotating shaft assembly is arranged on shaft seat, rotation turns with guiding promotion hydraulic cylinder and being packed in
On axle assembly, rotating hydraulic cylinder assembly one end promotes hydraulic cylinder assembly even with rotation and guiding, and the other end is used for being arranged on derrick
On, thus forming a kind of hydraulic clamping to collapse clasp forceps.
Referring to shown in Fig. 3 and Fig. 4, the turnbuckle clamp of described iron driller, its structure includes：Support 11, the first rocking arm 12, second
Rocking arm 13, the first side link 14, the second side link 15, the first roller pincers assembly 16, the second roller pincers assembly 17, clamping fluid cylinder
18th, the first balanced connecting rod 19, the second balanced connecting rod 20, balance bearing pin 21；Described support 11 is by anterior lateral frame 11.1 and rear portion
Support 11.2 forms, and anterior lateral frame 11.1 forms inverse-T-shaped structure with posterior bracket 11.2；Described first rocking arm 12 is arranged on
The left side of anterior lateral frame 11.1, the middle part of the first rocking arm 12 is hinged with the left end of anterior lateral frame 11.1, described first rolling
Total 16 one-tenth of wheel pincers are arranged in front of the left part of anterior lateral frame 11.1, and assembly 16 is clamped with the first roller in the front end of the first rocking arm 12
Left end is hinged, and the two ends of described first side link 14 connect left part and the first roller pincers assembly 16 of anterior lateral frame 11.1 respectively
Middle part, described support 11, the first rocking arm 12, the first roller clamp assembly 16 and the first side link 14 and form shaking of parallelogram
Linkage；Described second rocking arm 13 is arranged on the right side of anterior lateral frame 11.1, the middle part of the second rocking arm 13 and anterior lateral frame
11.1 right end is hinged, and described second roller pincers assembly 17 is arranged in front of the right part of anterior lateral frame 11.1, the second rocking arm
The right-hand member that assembly 17 is clamped with the second roller in 13 front end is hinged, and the two ends of described second side link 15 connect anterior lateral frame respectively
11.1 right part and the second roller clamp the middle part of assembly 17, described support 11, the second rocking arm 13, the second roller pincers assembly 17 and the
Two side link 15 forms the endplay device of parallelogram, and it is to be symmetrical arranged that described first roller pincers 16 clamp 17 with the second roller
's；The chute 11.3 of fore-and-aft direction is provided with portion's support 11.2, described balance bearing pin 21 is slidably installed in institute in the rear
State in chute 11.3, one end of described first balanced connecting rod 19 is hinged with the rear end of the first rocking arm 12, the other end and described balance
Bearing pin 21 is hinged, and one end of described second balanced connecting rod 20 is hinged with the rear end of the second rocking arm 13, the other end and described balancing plug
Axle 21 is hinged；The two ends of described clamping fluid cylinder 18 are hinged with the rear end of the first rocking arm 12 and the rear end of the second rocking arm 13 respectively；Also
Open up pilot hole at the middle part of described front portion lateral frame 11.1, guiding in the hole is provided with the vertical axis of guide 22, described anterior horizontal
It is arranged with back-moving spring 23 on the axis of guide 22 of support 11.1 lower section.Further, described balance bearing pin 11 and described chute 1.3
Between leave gap；Described first side link 4 and the first roller clamp the hinged employing hinge hole at assembly 6 middle part and the hinge of jointed shaft
Connect mode, and between hinge hole and jointed shaft, leave gap；Described second side link 5 and the second roller clamp the hinge in the middle part of assembly 7
Connect the articulated manner using hinge hole and jointed shaft, and between hinge hole and jointed shaft, leave gap.
Further, leave gap between described balance bearing pin 21 and described chute 11.3；Described first side link 14 with
First roller clamps the hinged employing hinge hole at assembly 16 middle part and the articulated manner of jointed shaft, and stays between hinge hole and jointed shaft
There is gap；Described second side link 15 and the second roller clamp the hinged employing hinge hole at assembly 17 middle part and the hinged side of jointed shaft
Gap is left between formula, and hinge hole and jointed shaft.
The using method of the present invention is：During upper button operation, lower drilling rod mother's box cupling is motionless, and upper drilling rod public access hoop be aligned mother is connect
Hoop, when quickly going up drilling rod or unloading drilling rod, the box cupling being clamped lower drilling rod by the back-up tong collapsing clasp forceps is motionless, then clamps liquid in turnbuckle clamp
In the presence of cylinder pressure, the upper drilling rod body of roller clamping of turnbuckle clamp drives the upper drilling rod of roller pincers rotation by hydraulic motor, with
When in the presence of spiral force compression spring, so that drilling rod is moved down, realize the effect of quick spinner.When spinner motor turns motionless
When, unclamp turnbuckle clamp, box cupling on tight for main clamp drilling rod drive main pincers rotation under collapsing button fluid cylinder effect, so that drilling rod is screwed,
Achieve linking closely of drill string.
During shackle operation, first drilling rod mother's box cupling, the public access hoop of the upper drilling rod of back-up tong clamping, master are tightly descended by the lower clamp collapsing clasp forceps
Pincers rush button direction around back-up tong work in the presence of collapsing button fluid cylinder and rotate, and realize punching and detain, then unclamp main clamp tightly, spinner is clamped
Fluid cylinder action, makes roller clamp tightly go up the body of drilling rod, operates spinner motor, make drilling rod fast shackle, go up drilling rod simultaneously and exist
The lower upper shifting of spring-return power effect, that is, complete shackle function.
Hydraulic Station that assembly of the invention is independently arranged by outside and hydraulic control system are driving and to control.
Claims (3)
1. a kind of iron driller, including rotary support, turnbuckle clamp and collapse clasp forceps it is characterised in that：Described rotary support holds
Carry chipping pincers, the top of chipping pincers is provided with turnbuckle clamp；
Described rotary support includes column, L-bracket, rotating base, swing pinion, lifting hydraulic cylinder, and described column is by interior
Square tube and outer square tube composition, outer square tube is slidably set on the outer wall of interior square tube, and the upper and lower ends of described interior square tube are all provided with
It is equipped with rotating base, the rotating base of described interior square tube upper end is additionally provided with the swing pinion that interior square tube can be driven to rotate, institute
State L-bracket to be made up of perpendicular supporting plate and horizontal shelf, perpendicular supporting plate is fixed on the outer wall of described outer square tube, described lifting hydraulic cylinder
One end be fixedly connected with perpendicular supporting plate, the other end is fixedly connected with the upper end of interior square tube；
Described turnbuckle clamp always includes support, the first rocking arm, the second rocking arm, the first side link, the second side link, the first roller pincers
Become, the second roller clamps assembly, clamping fluid cylinder, the first balanced connecting rod, the second balanced connecting rod, balance bearing pin；Described support is by front portion
Lateral frame and posterior bracket composition, anterior lateral frame forms inverse-T-shaped structure with posterior bracket；Before described first rocking arm is arranged on
The left side of portion's lateral frame, the middle part of the first rocking arm is hinged with the left end of anterior lateral frame, described first roller pincers assembly setting
In front of the left part of anterior lateral frame, the left end that assembly is clamped with the first roller in the front end of the first rocking arm is hinged, described first frame linking
The two ends of bar connect the left part of anterior lateral frame respectively and the first roller clamps the middle part of assembly, described support, the first rocking arm, first
Roller clamps assembly and the first side link forms the endplay device of parallelogram；Described second rocking arm is arranged on anterior lateral frame
Right side, the middle part of the second rocking arm is hinged with the right end of anterior lateral frame, and described second roller pincers assembly is arranged on anterior horizontal
In front of the right part of frame, the right-hand member that assembly is clamped with the second roller in the front end of the second rocking arm is hinged, and the two ends of described second side link are divided
The right part of anterior lateral frame and the second roller Lian Jie not clamp the middle part of assembly, described support, the second rocking arm, the second roller pincers assembly
Form the endplay device of parallelogram with the second side link, described first roller pincers and the second roller pincers are symmetrically arranged；
The chute of fore-and-aft direction is provided with portion's support, described balance bearing pin is slidably installed in described chute, described in the rear
One end of first balanced connecting rod is hinged with the rear end of the first rocking arm, the other end and described balance hinge, described second balance
One end of connecting rod is hinged with the rear end of the second rocking arm, the other end and described balance hinge；The two ends of described clamping fluid cylinder are divided
Not hinged with the rear end of the first rocking arm and the rear end of the second rocking arm；Also open up pilot hole at the middle part of described front portion lateral frame, lead
In the hole is provided with the vertical axis of guide, the axis of guide below the lateral frame of described front portion is arranged with back-moving spring.
2. a kind of iron driller according to claim 1 it is characterised in that：It is solid that described perpendicular supporting plate passes through dismountable securing member
It is scheduled on the outer wall of described outer square tube.
3. a kind of iron driller according to claim 1 it is characterised in that：Leave between described balance bearing pin and described chute
Gap；Hinged employing hinge hole in the middle part of described first side link and the first roller pincers assembly and the articulated manner of jointed shaft, and
Gap is left between hinge hole and jointed shaft；Described second side link and the second roller clamp the hinged employing hinge hole in the middle part of assembly
With the articulated manner of jointed shaft, and between hinge hole and jointed shaft, leave gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115543.8A CN103939037B (en) | 2014-03-26 | 2014-03-26 | Iron roughneck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115543.8A CN103939037B (en) | 2014-03-26 | 2014-03-26 | Iron roughneck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939037A CN103939037A (en) | 2014-07-23 |
| CN103939037B true CN103939037B (en) | 2017-02-15 |
Family
ID=51186883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410115543.8A Active CN103939037B (en) | 2014-03-26 | 2014-03-26 | Iron roughneck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939037B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502006B (en) * | 2014-11-24 | 2017-01-04 | 宝鸡石油机械有限责任公司 | On a kind of iron driller, break-out torque method of testing |
| CN106801586A (en) * | 2017-03-15 | 2017-06-06 | 兰州兰石集团有限公司 | Pipe supporting device |
| CN111472701B (en) * | 2019-01-24 | 2024-09-20 | 江苏如通石油机械股份有限公司 | Automatic notch aligning device for turnbuckle pliers |
| CN110029962B (en) * | 2019-05-13 | 2023-08-29 | 江苏申利达机械制造有限公司 | Remote quick-connection device for check valve and oil pipe plug valve of drilling tool for drilling and repairing well |
| CN110656897B (en) * | 2019-09-25 | 2021-06-15 | 宝鸡石油机械有限责任公司 | Integrated integrated iron roughneck |
| CN113530475B (en) * | 2021-07-16 | 2024-02-23 | 无锡智瀚智能机器技术有限公司 | Positioning mechanism, positioning seat, alignment mechanism for workover rig and workover rig |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6776070B1 (en) * | 1999-05-02 | 2004-08-17 | Varco I/P, Inc | Iron roughneck |
| CN202023518U (en) * | 2011-04-20 | 2011-11-02 | 沈阳新松机器人自动化股份有限公司 | Spinning pincers for oilfield drilling tool |
| CN202370458U (en) * | 2011-12-21 | 2012-08-08 | 濮阳市中原锐实达石油设备有限公司 | Iron driller |
| CN203161125U (en) * | 2013-03-15 | 2013-08-28 | 宝鸡石油机械有限责任公司 | Retractable arm type ion roughneck |
| CN103422822A (en) * | 2013-07-11 | 2013-12-04 | 山西北方机械制造有限责任公司 | Iron roughneck supporting device with telescopic support structure |
| CN103556942A (en) * | 2013-10-21 | 2014-02-05 | 安徽和翔机械科技有限公司 | Petroleum drilling device with multifunctional adjusting structure |
| CN203808882U (en) * | 2014-03-26 | 2014-09-03 | 南阳二机石油装备(集团)有限公司 | Iron roughneck |
-
2014
- 2014-03-26 CN CN201410115543.8A patent/CN103939037B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6776070B1 (en) * | 1999-05-02 | 2004-08-17 | Varco I/P, Inc | Iron roughneck |
| CN202023518U (en) * | 2011-04-20 | 2011-11-02 | 沈阳新松机器人自动化股份有限公司 | Spinning pincers for oilfield drilling tool |
| CN202370458U (en) * | 2011-12-21 | 2012-08-08 | 濮阳市中原锐实达石油设备有限公司 | Iron driller |
| CN203161125U (en) * | 2013-03-15 | 2013-08-28 | 宝鸡石油机械有限责任公司 | Retractable arm type ion roughneck |
| CN103422822A (en) * | 2013-07-11 | 2013-12-04 | 山西北方机械制造有限责任公司 | Iron roughneck supporting device with telescopic support structure |
| CN103556942A (en) * | 2013-10-21 | 2014-02-05 | 安徽和翔机械科技有限公司 | Petroleum drilling device with multifunctional adjusting structure |
| CN203808882U (en) * | 2014-03-26 | 2014-09-03 | 南阳二机石油装备(集团)有限公司 | Iron roughneck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939037A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103939037B (en) | Iron roughneck | |
| CN105545231B (en) | A kind of floating type sucker rod upper shackle device automatically | |
| JPS599714B2 (en) | Hydraulic drilling equipment and power swivels | |
| CN205605143U (en) | Device of breaking out on floating sucker rod is automatic | |
| CN105604505B (en) | A kind of bridge thribble pipe racking device and comb method | |
| CN104153726B (en) | A kind of Novel iron driller supporting arm and comprise the iron driller of this supporting arm | |
| CN109798079B (en) | Telescopic arm type iron driller | |
| CN104929544B (en) | A kind of oil drilling pipe clamping jaw | |
| CN103410456A (en) | Iron stand tool | |
| CN205864207U (en) | Waste and old motor wire drawing machine | |
| CN203808882U (en) | Iron roughneck | |
| US9217303B2 (en) | Apparatus for connecting or disconnecting a threaded coupling between two riser joints | |
| CN104179465A (en) | Iron roughneck | |
| CN105776044B (en) | Hooks coupling universal coupling dismounting special hanger and its application method on a kind of vertical mill | |
| CN205154072U (en) | Support pincers with auto -Turning | |
| CN206845122U (en) | A kind of rail mounted iron driller | |
| CA2869240C (en) | Spin wrench assembly | |
| CN205600242U (en) | Mine equipment liquid press wheel dismouting maintenance device | |
| CN202689975U (en) | Down-the-hole drill with hydraulic rod dismounting device | |
| CN204002643U (en) | The automatic make-up tapping equipment of a kind of drilling tool | |
| CN210147418U (en) | Pressure test dismounting device for downhole tool | |
| CN206233879U (en) | Oil drilling machine quadruple board platform pipe arranging robot tubing string pawl | |
| CN201705247U (en) | Spinning wrench used for mounting or dismounting drilling rod and casing | |
| CN107717283A (en) | A kind of robot spot-welding production line | |
| CN105328159A (en) | Tube drawing mechanism for centrifugal machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 473000 No. 869 West Zhongzhou Road, Henan, Nanyang Applicant after: RG PETRO-MACHINERY (GROUP) CO., LTD. Address before: 473000 No. 869 West Zhongzhou Road, Henan, Nanyang Applicant before: RG Petro-Machinery (Group) Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |