CN106703719A - Offshore drilling equipment capable of keeping drill pipe pose balance - Google Patents
Offshore drilling equipment capable of keeping drill pipe pose balance Download PDFInfo
- Publication number
- CN106703719A CN106703719A CN201611161273.XA CN201611161273A CN106703719A CN 106703719 A CN106703719 A CN 106703719A CN 201611161273 A CN201611161273 A CN 201611161273A CN 106703719 A CN106703719 A CN 106703719A
- Authority
- CN
- China
- Prior art keywords
- drilling
- drilling rod
- pose
- platform
- equipment
- 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
Links
Classifications
-
- 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
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
Abstract
Offshore drilling equipment capable of keeping drill pipe pose balance comprises a drilling platform. A through hole is formed in the drilling platform. A drilling machine is arranged above the through hole, is connected with a detection control system, and comprises a drilling tower, a drilling driving device and a drill pipe pose compensating device. A guide rail is fixedly connected into the drilling tower. The length of the guide rail is matched with the height of the drill tower. The drilling driving device is fixedly connected to the guide rail and slides along the guide rail. The drill pipe pose compensating device is fixed to the lower side of the drilling driving device, and clamps a drill pipe. The drill pipe moves up and down through sliding of the drilling driving device, and can move down to penetrate the through hole to achieve drilling operation. The drill pipe is kept in a balanced state during up-down movement through compensating motion of the drill pipe pose compensating device. The compensating motion of the drill pipe pose compensating device is controlled by the detection control system. The offshore drilling equipment has the advantages that the drill pipe is kept in the balanced state in real time through a stabilizing platform with multiple degrees of freedom, and accordingly, drilling accuracy and production efficiency are improved.
Description
Technical field
Filled the present invention relates to drilling equipment technical field, more particularly to a kind of marine drilling for keeping drilling rod pose balance
It is standby.
Background technology
Deep-sea marine drilling operation is different from shallow sea marine drilling operation, and deep-sea marine drilling operation generally needs to use base
In drill ship or the drilling equipment of marine floating type platform, but drill ship or marine floating type platform are highly susceptible to ambient influnence,
The motion in multiple frees degree such as rolling, pitching, driftage, traversing, vertical shift, heave, serious shadow are easily produced in drilling process
Being smoothed out for marine drilling operation is rung, the efficiency of Drilling Precision and drilling has been reduced, and has greatly reduced drilling rod and brill
The service life of tool.
The content of the invention
In view of this, realize drilling rod in drilling operation course by multiple degrees of freedom stabilized platform the invention provides one kind
High accuracy, the pose compensation of fast-response, greatly improve the sea for keeping drilling rod pose balance of Drilling Precision and production efficiency
Foreign drilling equipment.
The present invention provides a kind of marine drilling for keeping drilling rod pose balance and equips, including drilling platforms, and the drilling is put down
Through hole is provided with platform, rig, the rig connecting detection control system are provided with above the through hole, the rig includes boring
Tower, drilling driving equipment and drilling rod pose compensation equipment, affixed guide rail in the boring tower, the length of the guide rail and the height of boring tower
Degree is adapted, and the drilling driving equipment is slidably mounted on guide rail, and the drilling rod pose compensation equipment is fixed on drilling and drives
The lower section of equipment, the drilling rod pose compensates equipment holding drill pipe, slip of the drilling rod by creeping into driving equipment realize to
Go up and move down, drilling rod is moved down can realize drillng operation through through hole, and the drilling rod leads to when moving up and down
The compensation campaign for crossing drilling rod pose compensation equipment keeps poised state, and the compensation campaign of the drilling rod pose compensation equipment is by detecting
Control system is controlled.
Further, the drilling rod pose compensation equipment includes multiple degrees of freedom stabilized platform and drill pipe clamp, the drilling rod
Clamper is fixed on the lower section of multiple degrees of freedom stabilized platform.
Further, the multiple degrees of freedom stabilized platform includes fixed platform and motion compensation plate, and the fixed platform and motion are mended
Repay and be connected between plate several structure identical motion compensation parts, the motion compensation part is by the flexible motion compensation plate that keeps
Drill pipe clamp is fixed in balance, the lower section of the motion compensation plate, and the fixed platform is fixed on the lower section of drilling driving equipment.
Further, the multiple degrees of freedom stabilized platform is six degree of freedom stabilized platform.
Further, the fixed platform and motion compensation plate are hexagon, and the quantity of the motion compensation part is six, institute
The affixed pedestal of edge of the inner side of fixed platform and motion compensation plate is stated, the two ends of the motion compensation part are respectively hinged at determines
On the pedestal of platform and motion compensation plate relative set.
Further, the two ends of the motion compensation part are equipped with spherical linkage, and the spherical linkage is rotatably installed in pedestal
On, the motion compensation part includes the first drive rod and the second drive rod, and second drive rod is by the first prismatic pair in institute
State in the first drive rod and do stretching motion.
Further, the drilling driving equipment includes sliding block and power unit, and the sliding block is slidably mounted on guide rail, institute
The top that power unit is fixed on sliding block is stated, drilling rod pose compensation equipment is fixed in the lower section of the sliding block, and the power unit drives
Movable slider is along slide.
Further, the detecting and controlling system includes sensor, control chip module and control signal transmission line, described
Sensor detects the kinematic parameter of drilling platforms, and the kinematic parameter of the drilling platforms is drilling rod by control chip module converter
Pose compensates the compensation campaign parameter of equipment, and the compensation campaign parameter of the drilling rod pose compensation equipment is transmitted by control signal
Line transmission compensates equipment to drilling rod pose.
Further, the drilling platforms is drill ship or floating drilling platform.
Compared with prior art, the invention has the advantages that：Simple structure, it is workable, extensively should be suitable to
With；By the effect of multiple degrees of freedom stabilized platform, drilling rod high accuracy, fast-response in drilling operation course is set to carry out pose benefit
Repay, the poised state of drilling rod is kept in real time, drastically increase Drilling Precision and production efficiency；Drilling process, drilling equipment consumption
Damage small, service life extension, cost loss reduction, economic benefit is improved.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the enlarged drawing of drilling driving equipment and drilling rod pose compensation equipment in Fig. 1.
Fig. 3 is the enlarged drawing of drilling rod pose compensation equipment in Fig. 2.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is further described.
Fig. 1 is refer to, is equipped The embodiment provides a kind of marine drilling for keeping drilling rod pose balance, including
Drilling platforms 1, in one embodiment, drilling platforms 1 is drill ship or floating drilling platform, and through hole 11 is provided with drilling platform 1,
The top of through hole 11 is provided with rig 3, the connecting detection control system 2 of rig 3.
Rig 3 includes boring tower 31, drilling driving equipment 32 and drilling rod pose compensation equipment 33.
Affixed guide rail 311 in boring tower 31, the length of guide rail 311 is adapted with the height of boring tower 31.
Fig. 2 and Fig. 3 is refer to, drilling rod pose compensation equipment 33 is fixed on the lower section of drilling driving equipment 32, drilling rod pose
The holding drill pipe 4 of compensation equipment 33, slip of the drilling rod 4 by creeping into driving equipment 32 is realized moving up and down, and drilling rod 4 is downward
Mobile to realize drillng operation through through hole 11, drilling rod 4 compensates equipment 33 when moving up and down by drilling rod pose
Compensation campaign keeps poised state, and in one embodiment, drilling rod pose compensation equipment 33 includes the He of multiple degrees of freedom stabilized platform 331
Drill pipe clamp 332, drill pipe clamp 332 is fixed on the lower section of multiple degrees of freedom stabilized platform 331, multiple degrees of freedom stabilized platform
331 include fixed platform 333 and motion compensation plate 334, and fixed platform 333 is fixed on the lower section of drilling driving equipment 32, fixed platform 333
Several structure identical motion compensation parts 335 are connected with and motion compensation plate 334 between, motion compensation part 335 is by flexible guarantor
The balance of motion compensation plate 334 is held, drill pipe clamp 332 is fixed in the lower section of motion compensation plate 334, in a preferred embodiment,
Multiple degrees of freedom stabilized platform 331 is six degree of freedom stabilized platform, and fixed platform 333 and motion compensation plate 334 are hexagon, is moved
The quantity of compensating part 335 is six, the affixed pedestal 336 of edge of the inner side of fixed platform 333 and motion compensation plate 334, fortune
The two ends of dynamic compensating part 335 are respectively hinged on the pedestal 336 of fixed platform 333 and the relative set of motion compensation plate 334, and motion is mended
The two ends for repaying part 335 are equipped with spherical linkage 337, and spherical linkage 337 is rotatably installed on pedestal 336, each motion compensation part
335 include the first drive rod 338 and the second drive rod 339, and second drive rod 339 is by the first prismatic pair 330 the
Stretching motion is done in one drive rod 338.
Fig. 2 is refer to, drilling driving equipment 32 is slidably mounted on guide rail 311, and drilling driving equipment 32 includes sliding block 321
With power unit 322, the lower section of sliding block 321 fixes drilling rod pose compensation equipment 33, and power unit 322 is fixed on sliding block 321
Top, in one embodiment, sliding block 321 is slidably mounted on guide rail 311, and power unit 322 drives sliding block 321 along guide rail 311
Slide.
Fig. 1 is refer to, the compensation campaign of drilling rod pose compensation equipment 33 is controlled by detecting and controlling system 2, in an embodiment
In, detecting and controlling system 2 includes sensor（Not shown in figure）, control chip module（Not shown in figure）Transmitted with control signal
There is rolling, pitching, driftage, traversing, vertical shift, liter in the presence of wave or sea wind in circuit 21, sensor detection drilling platforms 1
Kinematic parameter during heavy motion, the kinematic parameter of drilling platforms 1 is that drilling rod pose compensates equipment by control chip module converter
33 compensation campaign parameter, the compensation campaign parameter of drilling rod pose compensation equipment 33 is transferred to by control signal transmission line 21
Drilling rod pose compensates equipment 33.
The course of work：Drilling driving equipment 32 is slid into the upper end of guide rail 311 along guide rail 311, is then pressed from both sides by drilling rod
The holding drill pipe 4 of holder 332, afterwards, drilling rod 4 follows drilling driving equipment 32 to be moved down along guide rail 311, in moving process,
There is rolling, pitching, driftage, traversing, vertical shift, heave in the presence of wave or sea wind in sensor real-time detection drilling platforms 1
Kinematic parameter during motion, and kinematic parameter is transported by the compensation that control chip module converter is drilling rod pose compensation equipment 33
Dynamic parameter, the compensation campaign parameter of drilling rod pose compensation equipment 33 is transferred to drilling rod pose and mends by control signal transmission line 21
Equipment 33 is repaid, the drilling rod pose compensation adjustment motion compensation of equipment 33 part 335 makes the second drive rod 339 by the first prismatic pair 330
Stretching motion is done in the first drive rod 338, the plane for making motion compensation plate 334 by stretching motion is in poised state, enters
And the drill pipe clamp 332 for being fixed on the lower section of motion compensation plate 334 is in poised state, the equilibrium-like of drill pipe clamp 332
State makes drilling rod 4 in drillng operation, and no matter drilling platforms 1 occurs rolling, pitching, driftage, traversing, vertical shift or heave, and drilling rod 4 begins
Poised state is in eventually.
Simple structure of the present invention, it is workable, it is suitable to extensive use；By the effect of multiple degrees of freedom stabilized platform, make
Drilling rod high accuracy, poised state for carrying out pose compensation, drilling rod being kept in real time of fast-response in drilling operation course, greatly
Drilling Precision and production efficiency are improve, and, in drilling process, equipment loss is small, and service life extension, economic benefit is carried
It is high.
Herein, the involved noun of locality such as forward and backward, upper and lower is to be located in figure with parts in accompanying drawing and zero
Part position each other is intended merely to the clear and convenient of expression technology scheme come what is defined.It should be appreciated that the noun of locality
Use should not limit the claimed scope of the application.
In the case where not conflicting, the feature in embodiment herein-above set forth and embodiment can be combined with each other.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of marine drilling for keeping drilling rod pose balance is equipped, including drilling platforms, and through hole is provided with the drilling platform,
Rig, the rig connecting detection control system are provided with above the through hole, it is characterised in that the rig include boring tower,
Drilling driving equipment and drilling rod pose compensation equipment, are provided with guide rail, the length of the guide rail and the height of boring tower in the boring tower
It is adapted, the drilling driving equipment is slidably mounted on guide rail, the drilling rod pose compensation equipment is fixed on drilling driving and sets
Standby lower section, the drilling rod pose compensates equipment holding drill pipe, and slip of the drilling rod by creeping into driving equipment is realized upward
With move down, drilling rod is moved down can realize drillng operation through through hole, and the drilling rod passes through when moving up and down
The compensation campaign of drilling rod pose compensation equipment keeps the compensation campaign of poised state, the drilling rod pose compensation equipment to be controlled by detection
System control processed.
2. the marine drilling for keeping drilling rod pose balance according to claim 1 is equipped, it is characterised in that the drilling rod position
Appearance compensation equipment includes multiple degrees of freedom stabilized platform and drill pipe clamp, and it is flat that the drill pipe clamp is fixed on multiple degrees of freedom stabilization
The lower section of platform.
3. the marine drilling for keeping drilling rod pose balance according to claim 2 is equipped, it is characterised in that described how free
Degree stabilized platform includes fixed platform and motion compensation plate, several structures is connected between the fixed platform and motion compensation plate identical
Motion compensation part, the motion compensation part is by the flexible balance for keeping motion compensation plate, the lower section of the motion compensation plate
Fixed drill pipe clamp, the fixed platform is fixed on the lower section of drilling driving equipment.
4. the marine drilling for keeping drilling rod pose balance according to Claims 2 or 3 is equipped, it is characterised in that described many
Free degree stabilized platform is six degree of freedom stabilized platform.
5. the marine drilling for keeping drilling rod pose balance according to claim 3 is equipped, it is characterised in that the fixed platform
Be hexagon with motion compensation plate, the quantity of the motion compensation part is six, the fixed platform and motion compensation plate it is interior
The affixed pedestal of the edge of side, the two ends of the motion compensation part are respectively hinged at fixed platform and motion compensation plate relative set
Pedestal on.
6. the marine drilling for keeping drilling rod pose balance according to claim 5 is equipped, it is characterised in that the motion is mended
The two ends for repaying part are equipped with spherical linkage, and the spherical linkage is rotatably installed on pedestal, and the motion compensation part includes first
Drive rod and the second drive rod, second drive rod do stretching motion by the first prismatic pair in first drive rod.
7. the marine drilling for keeping drilling rod pose balance according to claim 1 is equipped, it is characterised in that the drilling is driven
Dynamic equipment includes sliding block and power unit, and the sliding block is slidably mounted on guide rail, and the power unit is fixed on the top of sliding block,
Drilling rod pose compensation equipment is fixed in the lower section of the sliding block, and the power unit drives sliding block along slide.
8. the marine drilling for keeping drilling rod pose balance according to claim 1 is equipped, it is characterised in that the detection control
System processed includes sensor, control chip module and control signal transmission line, and the sensor detects the motion of drilling platforms
Parameter, the kinematic parameter of the drilling platforms is joined by the compensation campaign that control chip module converter is drilling rod pose compensation equipment
Number, the compensation campaign parameter of the drilling rod pose compensation equipment is transferred to the compensation of drilling rod pose and sets by control signal transmission line
It is standby.
9. the marine drilling for keeping drilling rod pose balance according to claim 1 or 8 is equipped, it is characterised in that the brill
Well platform is drill ship or floating drilling platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161273.XA CN106703719B (en) | 2016-12-15 | 2016-12-15 | A kind of marine drilling equipment keeping drilling rod pose balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161273.XA CN106703719B (en) | 2016-12-15 | 2016-12-15 | A kind of marine drilling equipment keeping drilling rod pose balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703719A true CN106703719A (en) | 2017-05-24 |
| CN106703719B CN106703719B (en) | 2019-06-28 |
Family
ID=58937833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611161273.XA Active CN106703719B (en) | 2016-12-15 | 2016-12-15 | A kind of marine drilling equipment keeping drilling rod pose balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703719B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489279A (en) * | 2023-12-28 | 2024-02-02 | 烟台鲁东勘察测绘有限公司 | Ocean engineering drilling riser installation device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025872A (en) * | 1978-07-10 | 1980-01-30 | Nl Industries Inc | Guide Roller Assembly |
| CN1194679A (en) * | 1996-05-03 | 1998-09-30 | 跨洋近海公司 | Multi-activity offshore exploration and/or development drilling method and apparatus |
| US6000480A (en) * | 1997-10-01 | 1999-12-14 | Mercur Slimhole Drilling Intervention As | Arrangement in connection with drilling of oil wells especially with coil tubing |
| CN101655000A (en) * | 2009-09-21 | 2010-02-24 | 张宝有 | Full-hydraulic top-drive truck-mounted drilling rig |
| CN203488131U (en) * | 2013-09-25 | 2014-03-19 | 中国石油天然气股份有限公司 | Positioning and connecting mechanism of underground tractor |
| CN103670319A (en) * | 2013-12-04 | 2014-03-26 | 上海交通大学 | Oilfield blowout control operation device and method |
| CN104265171A (en) * | 2014-09-19 | 2015-01-07 | 合肥工业大学 | Vertical well drilling automatic adjusting device and adjusting method |
| US20150246711A1 (en) * | 2012-04-09 | 2015-09-03 | Cytroniq., Ltd. | Method and system for static and dynamic positioning or controlling motion of marine structure |
| CN105239926A (en) * | 2015-11-18 | 2016-01-13 | 湖南科技大学 | Double-distance propelling unit for subsea drilling machine |
| CN105253264A (en) * | 2015-04-28 | 2016-01-20 | 江苏科技大学 | Ocean wave compensation device of deepwater semisubmersible drilling platform and control method thereof |
| CN106050146A (en) * | 2016-08-09 | 2016-10-26 | 中国地质大学（武汉） | Offshore drilling equipment |
| CN206581905U (en) * | 2016-12-15 | 2017-10-24 | 中国地质大学（武汉） | A kind of marine drilling for keeping drilling rod pose balance is equipped |
-
2016
- 2016-12-15 CN CN201611161273.XA patent/CN106703719B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025872A (en) * | 1978-07-10 | 1980-01-30 | Nl Industries Inc | Guide Roller Assembly |
| CN1194679A (en) * | 1996-05-03 | 1998-09-30 | 跨洋近海公司 | Multi-activity offshore exploration and/or development drilling method and apparatus |
| US6000480A (en) * | 1997-10-01 | 1999-12-14 | Mercur Slimhole Drilling Intervention As | Arrangement in connection with drilling of oil wells especially with coil tubing |
| CN101655000A (en) * | 2009-09-21 | 2010-02-24 | 张宝有 | Full-hydraulic top-drive truck-mounted drilling rig |
| US20150246711A1 (en) * | 2012-04-09 | 2015-09-03 | Cytroniq., Ltd. | Method and system for static and dynamic positioning or controlling motion of marine structure |
| CN203488131U (en) * | 2013-09-25 | 2014-03-19 | 中国石油天然气股份有限公司 | Positioning and connecting mechanism of underground tractor |
| CN103670319A (en) * | 2013-12-04 | 2014-03-26 | 上海交通大学 | Oilfield blowout control operation device and method |
| CN104265171A (en) * | 2014-09-19 | 2015-01-07 | 合肥工业大学 | Vertical well drilling automatic adjusting device and adjusting method |
| CN105253264A (en) * | 2015-04-28 | 2016-01-20 | 江苏科技大学 | Ocean wave compensation device of deepwater semisubmersible drilling platform and control method thereof |
| CN105239926A (en) * | 2015-11-18 | 2016-01-13 | 湖南科技大学 | Double-distance propelling unit for subsea drilling machine |
| CN106050146A (en) * | 2016-08-09 | 2016-10-26 | 中国地质大学（武汉） | Offshore drilling equipment |
| CN206581905U (en) * | 2016-12-15 | 2017-10-24 | 中国地质大学（武汉） | A kind of marine drilling for keeping drilling rod pose balance is equipped |
Non-Patent Citations (1)
| Title |
|---|
| 徐东光: "一种增大6_UPS并联机构工作空间的有效方法的研究", 《徐东光》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489279A (en) * | 2023-12-28 | 2024-02-02 | 烟台鲁东勘察测绘有限公司 | Ocean engineering drilling riser installation device |
| CN117489279B (en) * | 2023-12-28 | 2024-03-15 | 烟台鲁东勘察测绘有限公司 | Ocean engineering drilling riser installation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106703719B (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101555774A (en) | Seabed deep hole coring drilling machine | |
| CN206581905U (en) | A kind of marine drilling for keeping drilling rod pose balance is equipped | |
| CN109570860B (en) | Multi-axis robot welding track for intelligent welding of ship frame | |
| CN108862056B (en) | Marine A type portal base of wave compensation | |
| CN106703719A (en) | Offshore drilling equipment capable of keeping drill pipe pose balance | |
| KR101784800B1 (en) | Movable pile guide apparatus | |
| CN208327250U (en) | Lifting device | |
| KR20170056092A (en) | Mooring apparatus for floating offshore structure | |
| CN102179543A (en) | Automatic drilling machine | |
| CN107414120A (en) | Drilling machine | |
| CN203686356U (en) | Marine pipe and cable laying tensioner | |
| CN206952379U (en) | A kind of laser cutting device | |
| CN205363808U (en) | Board workstation turns over | |
| CN105253260B (en) | Special ship for controlling installation of offshore wind driven generator by front carrying type tower column posture | |
| CN213275167U (en) | Steel strength detection device for building detection | |
| CN206854689U (en) | Universal drilling machine | |
| CN111319735B (en) | Three-stage folding and unfolding mechanism for boat | |
| CN207480053U (en) | A kind of integrated boring, mill, the multifunctional process equipment pressed | |
| CN205895158U (en) | Offshore rig is from leveling system | |
| CN205089241U (en) | Increase apart from half initiative overhead traveling crane heave compensator of formula | |
| CN200945510Y (en) | Vertical band storage device | |
| CN203837896U (en) | Loading test stand for seabed pipeline clamping member | |
| CN216608561U (en) | Ejection device and machine tool comprising same | |
| CN220373268U (en) | Material taking mechanical arm | |
| CN214816391U (en) | Screw locking machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |