CN107218001A - A kind of clip type bit change-over device - Google Patents
A kind of clip type bit change-over device Download PDFInfo
- Publication number
- CN107218001A CN107218001A CN201710614678.2A CN201710614678A CN107218001A CN 107218001 A CN107218001 A CN 107218001A CN 201710614678 A CN201710614678 A CN 201710614678A CN 107218001 A CN107218001 A CN 107218001A
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- China
- Prior art keywords
- clamping jaw
- drill bit
- cylinder
- gear
- hole
- 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.)
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Links
- 230000003028 elevating effect Effects 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 210000005069 ears Anatomy 0.000 claims description 3
- 241000237858 Gastropoda Species 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 22
- 239000004519 grease Substances 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of clip type bit change-over device, it is made up of clamping jaw system, rotary system, horizontal push-pull system, elevating ram system, isolation cylinder system, power forceps system and seal casinghousing, it is characterized in that：Seal casinghousing left bottom bolt connection has elevating ram system；Rectangular oil cylinder system head is threaded with horizontal push-pull system；The mounting cylinder inner bolt of horizontal push-pull system is connected with rotary system；With clamping jaw system bolt connection at the top of rotary system.When changing old drill bit, drill bit is released or linked closely by power forceps system, drill bit is separated or is connected with drilling rod by clamping jaw system, grasping system horizontal level is changed by horizontal push-pull system, clamping grease head highness is changed by elevating ram system.Compared with prior art, the present invention can carry out boring the time under replacement operation, and then the trip-out time of shortening drill bit and drill bit at subsea wellheads to old drill bit, so as to shorten drilling period, reduce labor intensity, and reduce marine oil and gas drilling well integrated cost.
Description
Technical field
The present invention relates to offshore oil gas drilling equipment technology field, more particularly to a kind of clip type bit change-over dress
Put.
Background technology
With the shortage of landing field petroleum resources, coastal countries are explored and opened to Marine oil and gas resource successively
Adopt, and the exploration to Marine oil and gas resource progressively turns into the main trend that domestic and international oil and gas industry develops with exploitation.In addition, with
China's economy to grow continuously and fast, petroleum resources is insufficient by the principal contradiction as obstruction economic development, to improve oil
The occupancy volume of gas resource, the exploration and exploitation of marine oil and gas have become the strategic emphasis that China realizes energy sustainable development.
The exploitation of marine oil and gas is developed so far, and drilling well exploitation is still oil, the major way of gas exploitation.A bite Oil/gas Well is from opening
Completion is got into, following three groundworks need to be carried out：Crush bottom rock, put down fragmented rock (i.e. landwaste) migration to ocean
Platform, complete well cementation, and drill bit be in drilling engineering to fractured rock, form the crucial rock crushing tool of pit shaft.In prior art
In, when drill bit is worn and torn by stratum, or drill bit is when running into the bad grounds such as hard formation, abrasive layer, rammell, need to be old by shaft bottom
Drill bit rises and is drilled into ocean platform to change green bit；During trip-out, need to using hydraulic tongs, shackle is pulled down one by one by drill pipe joint, from
And old drill bit is promoted to ocean platform, and the old drill bit being worn is changed on ocean platform, or change and complexity
The old drill bit that stratum is not matched that.After the completion of old bit change-over, tripping operation need to be carried out, during lower brill, hydraulic tongs need to be used
Drill pipe joint is upper buckle-shaped into drill string one by one, so that green bit lower going-into-well bottom.Behind green bit lower going-into-well bottom, turn on pump enters again
Row drillng operation, and then realize raising bit speed, reduce the purpose of drilling well integrated cost.
But change that trip-out, tripping operation time that old drill bit brings are long, add marine oil gas well drilling period and
Labor intensity is improved, drilling cost is considerably increased.
The content of the invention
In order to overcome the disadvantages mentioned above of existing more bit change equipment, it is an object of the invention to provide a kind of clip type drill bit
More changing device, the device can at subsea wellhead installations to old drill bit carry out replacement operation, with shorten drill bit the trip-out time and
The lower brill time of drill bit, and then shorten the drilling time of marine oil gas well.
In order to achieve the above object, the technical proposal of the invention is realized in this way：
1. a kind of formula bit change more changing device of clamping jaw 12, by clamping jaw system 1, rotary system 2, horizontal push-pull system 3, lifting
Cylinder system 4, isolation cylinder system 5, power forceps system 6 and seal casinghousing 7 are constituted, it is characterized in that：The left side of seal casinghousing 7
Bottom bolts are connected with elevating ram system 4, and rectangular oil cylinder system head is threaded with horizontal push-pull system 3, horizontal push-and-pull
The left side bolt connection of system 3 has rotary system 2, and the top of rotary system 2 is connected with clamping jaw system 1；The right side of seal casinghousing 7 is provided with
Power forceps system 6, isolation cylinder system 5 is located at the center of seal casinghousing 7；
The clamping jaw system 1 is by mounting bracket 11, clamping jaw 12, diplopore connecting rod 13, three hole connecting rods 14, turbine 15, the structure of worm screw 16
Into；The top and middle part of the mounting bracket 11 are designed with pin-and-hole, and upper pin-and-hole forms bearing pin with the lower end of diplopore connecting rod 13 and is connected,
The lower end of lower pin-and-hole and three hole connecting rods 14 forms bearing pin and is connected, and the upper end of the hole connecting rod 14 of diplopore connecting rod 13 and three is and clamping jaw
12 form bearing pin connection；The middle part of mounting bracket 11 is provided with gear, and gear is connected with the formation bearing pin of mounting bracket 11, gear and three holes
Connecting rod 14 has bearing pin tie point at two, and worm screw 16 is provided between gear and gear, and the gear is intermeshed with worm screw 16；Peace
The lower end for shelving 11 is designed with the annulus with through hole, and mounting bracket 11 is anchored on the end face of rotary system 2 by bolt through through hole；Install
Transverse slat 17 is designed with the inside of the annulus of frame 11, motor is anchored on the end face of transverse slat 17 by bolt through transverse slat 17.
2. the formula bit change-over device of a kind of clamping jaw 12 according to claim 1, it is characterized in that：The horizontal push-and-pull system
System 3 is made up of mounting cylinder 31, little gear 32, spur rack 33, slide rail 34, slide track seat 35 and limited block 36；The mounting cylinder 31 with
Ball is installed, the lower surface bolt connection of mounting cylinder 31 has motor between rotary system 2, formed between motor and rotating cylinder 21
Spline is connected；The outer surface lower right side of mounting cylinder 31 is welded with slide rail 34, the installation of slide rail 34 and slide track seat 35, the right side of slide rail 34
End face and the bolt connection of limited block 36；The outer surface upper right side design ears ring of mounting cylinder 31, bearing pin passes through the list of spur rack 33
Earrings simultaneously makes mounting cylinder 31 be connected with the formation bearing pin of spur rack 33；The spur rack 33 is intermeshed with little gear 32, little gear
32 and motor connection, motor and the bolt connection of slide track seat 35.
Compared with the prior art, the beneficial effects of the invention are as follows：1. the present invention can be at the inlet device of seabed to old drill bit
Replacement operation is carried out, the trip-out time of drill bit and the lower brill time of drill bit can be shortened, and then reduces offshore oil natural gas resource
The integrated cost of drilling well exploitation.2. the present invention hangs drill bit by the way of fixture block is caught in drill bit step surface, so as to simplify
Remove the complex operations of green bit and the old drill bit of upper extension.
Brief description of the drawings
Fig. 1 lifts the schematic three dimensional views of cylinder system, horizontal push-pull system and clamping jaw system to rise.
Fig. 2 is clamping jaw system schematic three dimensional views.
Fig. 3 is clamping jaw system schematic three dimensional views under different angles.
Fig. 4 is mounting bracket schematic three dimensional views.
Fig. 5 is clamping jaw components of system as directed part schematic diagram.
Fig. 6 is mounting bracket and motor and the scheme of installation of worm screw.
Fig. 7 is the schematic three dimensional views of mounting bracket and rotary system.
Fig. 8 is horizontal push-pull system schematic three dimensional views.
Fig. 9 is the schematic three dimensional views of horizontal push-pull system under different visual angles.
Figure 10 is the schematic three dimensional views of elevating ram system.
Figure 11 is the connection diagram of cylinder installation seat and flange end cap.
Figure 12 is schematic diagram when each system of the invention is in original state.
Schematic diagram when Figure 13 releases for Power Tong.
Figure 14 is schematic diagram when grasping system makes drill bit and drilling rod separation.
Schematic diagram when Figure 15 is the old drill bit of grasping system movement to bit change-over position.
Figure 16 is schematic diagram when grasping system dismantles lower green bit.
Figure 17 is at grasping system clamping green bit to drilling rod, and schematic diagram when making the drill bit be initially connected with drilling rod.
1. clamping jaw system, 11. mounting brackets, 12. clamping jaws, 13. diplopore connecting rods, 14. 3 hole connecting rods, 15. turbines, 16. worm screws,
17 transverse slats；
2. rotary system, 21. rotating cylinders, 22. electric rotating machines；
3. horizontal push-pull system, 31. mounting cylinders, 32. little gears, 33. spur racks, 34. slide rails, 35. slide track seats, 36. limits
Position block；
4. elevating ram system, 41. flange end caps, 42 cylinder installation seats；
5. isolation cylinder system, 6. power forceps systems, 7. seal casinghousings；
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
With reference to 1, and Figure 12~Figure 17, a kind of formula bit change-over device of clamping jaw 12, by clamping jaw system 1, rotary system 2,
Horizontal push-pull system 3, elevating ram system 4, isolation cylinder system 5, power forceps system 6 and seal casinghousing 7 are constituted.Its feature
For：The left bottom bolt connection of seal casinghousing 7 has elevating ram system 4；Rectangular oil cylinder system head is threaded with water
Horizontal sliding pull system 3；The inner bolt of mounting cylinder 31 of horizontal push-pull system 3 is connected with rotary system 2；The top of rotary system 2 and clamping jaw
The bolt connection of system 1；The right side of seal casinghousing 7 is provided with power forceps system 6；Isolation cylinder system 5 is located at the centre bit of seal casinghousing 7
Put place.
The operation principle of seabed drill-bit changing device is：Reference picture 12, during the normal drilling well of old drill bit, isolation cylinder system 5
Piston rod is in the state of elongation, marine riser is connected with wellhead assembly, so that circulation silt when preventing drilling well enters sealing
The left and right sides of housing 7.Drill bit, when needing to change old drill bit, need to be promoted at subsea wellhead installations by reference picture 13, close
Slush pump, and the piston rod of isolation cylinder system 5 is withdrawn, and old drill bit is promoted at the height of Power Tong, then start
Motor at Power Tong, rotates ball-screw, and then power forceps system 6 is extend out at old drill bit；Finally start Power Tong,
Power Tong is clamped old drill bit and carry out operation of releasing.Reference picture 14, just stops shackle when drill bit unscrewing operation is near completion, and
Starting the motor at Power Tong rotates ball-screw, and then power forceps system 6 is retracted to home position；Then lifting is started
Motor at cylinder system 4, makes elevating ram rotate 180 °, so that clamping jaw system 1 is rotated to the right side of elevating ram system 4
Side；Restart the motor of horizontal push-pull system 3, clamping jaw system 1 is moved to old drill bit bottom；Subsequently start at worm screw 16
Motor, receives clamping jaw 12 and clamps old drill bit；After old drill bit is clamped, starts the motor at rotary system 2, make clamping jaw system
1 rotation, so that old drill bit is completely separated with drilling rod.Reference picture 15, after old drill bit is separated with drilling rod, starts elevating ram system
The motor united at 4, makes grasping system rotate 180 °, so that clamping jaw system 1 is rotated to the left side of hoisting system, and controls
The height of elevating ram system 4, the horizontal level of clamping jaw system 1, make old drill bit be directed at vacant drill bit installation site, finally make
In drill bit installation and drill bit hanger bracket.Reference picture 16, after old drill bit is installed on hanger bracket, starts and at horizontal push-pull system 3
Motor, rotate little gear 32, and then clamping jaw system 1 is moved at green bit；When a liter act cylinder system moves to new brill
After at head, clamping jaw system 1 clamps green bit rotation, so that green bit is separated with hanger bracket.Reference picture 17, when green bit is with hanging
After hanger separation, then clamping jaw system 1 is set to move at drilling rod；After green bit is moved at drilling rod, make liter act cylinder system
Piston rod stretches out, and the motor rotation for going out liter act cylinder system, and then green bit is connected with drilling rod, realizes preliminary upper button；
After the completion of the tentatively upper button of green bit and drilling rod, liter act cylinder system and grasping system is set to retract to home position；Finally make
Power pincers are moved at green bit, are restarted Power Tong and are carried out operation of linking closely to green bit.Power Tong links closely rollback after the completion of operation
To initial position, the piston rod of isolation cylinder system 5 is stretched out, marine riser and moving uphole passage are set up from newly.
Reference picture 2~7, clamping jaw system 1 plays a part of tight drill bit.The operation principle of clamping jaw system 1 is that worm screw 16 drives
Gear rotates, and gear rotation changes the position of clamping jaw 12, so that clamping jaw 12 clamps drill bit.
The clamping jaw system 1 is by mounting bracket 11, clamping jaw 12, diplopore connecting rod 13, three hole connecting rods 14, turbine 15, the structure of worm screw 16
Into.The top and middle part of the mounting bracket 11 are designed with pin-and-hole, and upper pin-and-hole forms bearing pin with the lower end of diplopore connecting rod 13 and is connected,
Lower pin-and-hole forms bearing pin with the lower end of three hole connecting rods 14 and is connected.The upper end of the hole connecting rod 14 of diplopore connecting rod 13 and three is and clamping jaw
12 form bearing pin connection.The middle part of mounting bracket 11, which is designed with cavity, cavity, is provided with gear, and gear is sold with the formation of mounting bracket 11
Axle is connected.Gear and three hole connecting rods 14 have bearing pin tie point at two, are provided with worm screw 16 between gear and gear, the gear with
Worm screw 16 is intermeshed.The lower end of mounting bracket 11 is designed with the annulus with through hole, and mounting bracket 11 is anchored on by bolt through through hole
The end face of rotary system 2.Transverse slat 17 is designed with the inside of the annulus of mounting bracket 11, motor is anchored on transverse slat 17 by bolt through transverse slat 17
End face.Motor is used to drive worm screw 16 to rotate.
Reference picture 7, the rotary system 2 plays a part of rotating clamp jaw system 1.Rotary system 2 includes the He of rotating cylinder 21
Electric rotating machine 22.In the installation of rotating cylinder 21 and mounting cylinder 31, the upper surface of rotating cylinder 21 and the bolt connection of clamping jaw system 1, rotating cylinder
21 lower surface is connected with the bearing pin of electric rotating machine 22.
8~Fig. 9 of reference picture, the horizontal push-pull system 3, which is played, makes the purpose of grasping system horizontal movement.The level is pushed away
Pull system 3 is made up of mounting cylinder 31, little gear 32, spur rack 33, slide rail 34, slide track seat 35 and limited block 36.The mounting cylinder
Ball is installed, the lower surface bolt connection of mounting cylinder 31 has an electric rotating machine 22 between 31 and rotary system 2, electric rotating machine 22 with
Spline connection is formed between rotating cylinder 21.The outer surface lower right side of mounting cylinder 31 is welded with slide rail 34, and slide rail 34 is installed and slide rail
In seat 35, right side and the bolt connection of limited block 36 of slide rail 34, limited block 36 are used for limit levels push-pull system 3 and moved most
Big position.The outer surface upper right side design ears ring of mounting cylinder 31, bearing pin passes through the monaural ring of spur rack 33 and makes mounting cylinder 31
It is connected with the formation bearing pin of spur rack 33.The spur rack 33 is intermeshed with little gear 32, little gear 32 and motor connection, motor
Install and the bolt connection of slide track seat 35.
10~Figure 11 of reference picture, the elevating ram system 4 is used for the vertical height for changing grasping system.The lifting oil
Cylinder is installed in the cylinder installation seat of opposite opened, and ball, the method for cylinder are provided between cylinder installation seat and the flange end cap of oil cylinder
Blue end cap is connected with motor formation spline, and motor is fixed in cylinder installation seat.
Claims (2)
1. a kind of clamping jaw (12) formula bit change more changing device, by clamping jaw system (1), rotary system (2), horizontal push-pull system (3),
Elevating ram system (4), isolation cylinder system (5), power forceps system (6) and seal casinghousing (7) are constituted, it is characterized in that：It is described
Seal casinghousing (7) left bottom bolt connection has elevating ram system (4), and rectangular oil cylinder system head is threaded with level and pushed away
There is at the top of rotary system (2), rotary system (2) and clamping jaw system bolt connection on the left of pull system (3), horizontal push-pull system (3)
(1) connect；Power forceps system (6) is installed, isolation cylinder system (5) is located in seal casinghousing (7) on the right side of seal casinghousing (7)
The heart；
The clamping jaw system (1) by mounting bracket (11), clamping jaw (12), diplopore connecting rod (13), three hole connecting rods (14), turbine (15),
Worm screw (16) is constituted；The top and middle part of the mounting bracket (11) are designed with pin-and-hole, upper pin-and-hole and diplopore connecting rod (13)
End forms bearing pin connection, and lower pin-and-hole forms bearing pin with the lower end of three hole connecting rods (14) and is connected, the diplopore connecting rod (13) and three holes
The upper end of connecting rod (14) is connected with clamping jaw (12) formation bearing pin；Gear is installed, gear is with installing in the middle part of mounting bracket (11)
Frame (11) formation bearing pin connection, gear and three hole connecting rods (14) have bearing pin tie point at two, snail are provided between gear and gear
Bar (16), the gear is intermeshed with worm screw (16)；The lower end of mounting bracket (11) is designed with the annulus with through hole, and bolt is passed through
Mounting bracket (11) is anchored on rotary system (2) end face by through hole；Transverse slat (17), bolt are designed with the inside of mounting bracket (11) annulus
Motor is anchored on transverse slat (17) end face through transverse slat (17).
2. a kind of clamping jaw (12) formula bit change-over device according to claim 1, it is characterized in that：The horizontal push-pull system
(3) it is made up of mounting cylinder (31), little gear (32), spur rack (33), slide rail (34), slide track seat (35) and limited block (36)；Institute
State and ball is installed between mounting cylinder (31) and rotary system (2), the lower surface bolt connection of mounting cylinder (31) has motor, motor
Spline is formed between rotating cylinder (21) to be connected；The outer surface lower right side of mounting cylinder (31) is welded with slide rail (34), slide rail (34)
Install interior with slide track seat (35), right side and limited block (36) bolt connection of slide rail (34)；The outer surface of mounting cylinder (31) is right
Ears ring is designed in upside, and bearing pin passes through the monaural ring of spur rack (33) and mounting cylinder (31) is connected with spur rack (33) formation bearing pin
Connect；The spur rack (33) is intermeshed with little gear (32), little gear (32) and motor connection, motor and slide track seat (35) spiral shell
Tether and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614678.2A CN107218001B (en) | 2017-07-26 | 2017-07-26 | A kind of clip type bit change-over device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614678.2A CN107218001B (en) | 2017-07-26 | 2017-07-26 | A kind of clip type bit change-over device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107218001A true CN107218001A (en) | 2017-09-29 |
| CN107218001B CN107218001B (en) | 2018-10-12 |
Family
ID=59955048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710614678.2A Expired - Fee Related CN107218001B (en) | 2017-07-26 | 2017-07-26 | A kind of clip type bit change-over device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107218001B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240182A (en) * | 2018-01-05 | 2018-07-03 | 深圳市中科智诚科技有限公司 | A kind of intelligent drill rod grip device for no-dig technique horizontal directional drilling machine |
| CN108436486A (en) * | 2018-03-02 | 2018-08-24 | 江苏保捷精锻有限公司 | A kind of bearing race production line and its working method with efficient peener |
| CN108994640A (en) * | 2018-08-08 | 2018-12-14 | 庄丽红 | A kind of positioning grabbing device for clamping workpiece from three directions |
| CN113879599A (en) * | 2021-07-02 | 2022-01-04 | 上海畅选科技合伙企业(有限合伙) | Automatic fruit conveying system |
| CN114473488A (en) * | 2022-01-25 | 2022-05-13 | 中南大学湘雅三医院 | Atomizer manufacturing equipment for rehabilitation mechanical treatment |
| CN115341612A (en) * | 2022-09-02 | 2022-11-15 | 中联重科股份有限公司 | Drill rod auxiliary clamping device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2022229685A1 (en) * | 2021-03-01 | 2023-09-14 | Chester Brown Industries Pty Ltd | Cutting tool handling assembly |
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| US8011426B1 (en) * | 2009-01-26 | 2011-09-06 | T&T Engineering Services, Inc. | Method of gripping a tubular with a tubular gripping mechanism |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240182A (en) * | 2018-01-05 | 2018-07-03 | 深圳市中科智诚科技有限公司 | A kind of intelligent drill rod grip device for no-dig technique horizontal directional drilling machine |
| CN108240182B (en) * | 2018-01-05 | 2019-09-24 | 马鞍山和田电子智控系统有限公司 | A kind of intelligent drill rod grip device for no-dig technique horizontal directional drilling machine |
| CN108436486A (en) * | 2018-03-02 | 2018-08-24 | 江苏保捷精锻有限公司 | A kind of bearing race production line and its working method with efficient peener |
| CN108994640A (en) * | 2018-08-08 | 2018-12-14 | 庄丽红 | A kind of positioning grabbing device for clamping workpiece from three directions |
| CN113879599A (en) * | 2021-07-02 | 2022-01-04 | 上海畅选科技合伙企业(有限合伙) | Automatic fruit conveying system |
| CN114473488A (en) * | 2022-01-25 | 2022-05-13 | 中南大学湘雅三医院 | Atomizer manufacturing equipment for rehabilitation mechanical treatment |
| CN114473488B (en) * | 2022-01-25 | 2023-03-24 | 中南大学湘雅三医院 | Atomizer manufacturing equipment for rehabilitation mechanical treatment |
| CN115341612A (en) * | 2022-09-02 | 2022-11-15 | 中联重科股份有限公司 | Drill rod auxiliary clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107218001B (en) | 2018-10-12 |
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