CN110295845A - A kind of anti-well drilling machine of automatic drive type - Google Patents
A kind of anti-well drilling machine of automatic drive type Download PDFInfo
- Publication number
- CN110295845A CN110295845A CN201910353018.2A CN201910353018A CN110295845A CN 110295845 A CN110295845 A CN 110295845A CN 201910353018 A CN201910353018 A CN 201910353018A CN 110295845 A CN110295845 A CN 110295845A
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- China
- Prior art keywords
- bottom plate
- driving
- rotating bars
- driving column
- well drilling
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 16
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002893 slag Substances 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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of anti-well drilling machines of automatic drive type, including base support, telescoping drive mechanism, rotary drive mechanism, controller, drilling rod, cutterhead, tool apron, hob cutter mechanism；The hob cutter mechanism includes multiple annular drill bodies, bottom plate, multiple rotating bars, closing cap, driving column, multiple elastomers, drive rod, driving cylinder；The broken rock structure of the multiple annular drill body pivot bush units of present invention formation；It is adjusted so that the inside of annular drill body and the outside of multiple rotating bars achieve the purpose that be adapted to broken rock face, reach better rock breaking efficiency there are suitable annular floating gap.
Description
Technical field
The present invention relates to a kind of anti-well drilling machines of automatic drive type.
Background technique
Currently, anti-well drilling machine is mainly used in hydroelectric project vertical shaft, inclined shaft, surge shaft, ventilation shaft and gully, railway
Construction ventilation well and mine slip slag well etc. industry.Drill bit in anti-well drilling machine is most important component in entire mechanism, one
As drill bit all include cutterhead, tool apron, hobboing cutter, tool apron is mounted on cutterhead, and hobboing cutter is mounted on tool apron, and hobboing cutter is usually a ring
The structure of shape cylinder, is then mounted on tool apron by connecting column, the often hobboing cutter meeting after hobboing cutter for a long time grind operation
It is worn, once hobboing cutter, which is worn entire hobboing cutter, directly to be scrapped, increases the operating cost of enterprise；In addition, existing
Hobboing cutter is fixed on tool apron, does not have floating rotating function, and hobboing cutter is easily damaged, and cannot be carried out according to broken rock face from correction
Tool apron position.
Summary of the invention
In view of the deficiencies of the prior art mentioned above, problems solved by the invention are as follows: provide a kind of dismounting and change it is convenient, can
It floats and rotates, can be finely adjusted to float according to broken rock face and correct the anti-well drilling machine of automatic drive type of position.
To solve the above problems, the technical solution adopted by the present invention is as follows:
A kind of anti-well drilling machine of automatic drive type, including base support, telescoping drive mechanism, rotary drive mechanism, controller, brill
Bar, cutterhead, tool apron, hob cutter mechanism；The telescoping drive mechanism is mounted on base support；The rotary drive mechanism peace
Mounted in telescoping drive mechanism upper end；The controller is mounted on base support and is separately connected telescoping drive mechanism and rotation
Turn driving mechanism；The drilling rod bottom is mounted on rotary drive mechanism；The drilling rod upper end is installed by cutterhead；The knife
Disk upper end is installed by multiple tool aprons；The hob cutter mechanism is mounted in tool apron by connecting rod；The hob cutter mechanism includes more
A annular drill body, bottom plate, multiple rotating bars, closing cap, driving column, multiple elastomers, drive rod, driving cylinder；Described is multiple
The bottom of rotating bar is rotatably connected on bottom plate by shaft；Multiple rotating bars are evenly distributed on bottom plate upper end surrounding；
The lower end inside of the rotating bar is connected on bottom plate by elastomer；Described multiple annular drill bodies are from multiple rotating bars
Upper end be socketed in the outsides of multiple rotating bars downwards；The driving column is mounted on the inside of multiple rotating bars and drives column
It is abutted on the outside of surrounding with multiple rotating bars；The lower end two sides of the driving column rotate one drive rod of installation respectively；Described
The lower end difference screw thread rotation of drive rod connects a driving cylinder；The lower end rotary clamping of the driving cylinder is on bottom plate；Institute
The closing cap stated is mounted on the upper end of multiple rotating bars and the upper end of annular drill body is carried out closing locking.
Further, the hob cutter mechanism further includes gag lever post；The L-shaped structure of the gag lever post；The drive rod
Upper end on the outside of be equipped with sliding limiting slot；The intermediate two sides of the bottom plate are installed by one limit plate respectively；The gag lever post
Lower end is fixed on bottom plate；The drive rod is connected to the upper end of gag lever post by sliding limiting slot sliding limit.
Further, the upper end of the drive rod is equipped with rotary clamping tooth；The lower end two sides of the driving column are set respectively
There is revotating card access slot；The drive rod turns to be connected in the revotating card access slot of driving column lower end by rotary clamping tooth spiral；Institute
The lower end for the drive rod stated is surrounded by external screw thread；The upper end of the driving cylinder is equipped with internal thread groove；The drive rod
Lower end is connected in the internal thread groove of driving cylinder by external screw thread；The lower end of the driving cylinder is equipped with and is surrounded by annular stop
Slot；The two sides of the bottom plate are respectively equipped with the round limiting slot of inverted T-shaped structure；The annular limit that the driving cylinder passes through lower end
Position slot rotary clamping is in the round limiting slot of bottom plate.
Further, the lower end of the closing cap is equipped with external screw thread ring；The upper end of the driving column is equipped with internal screw thread ring
Slot；The external screw thread ring is connected in the internal screw thread annular groove of driving column upper end by the screw thread rotation in outside.
Further, the closing cap, driving column, be equipped with that position is corresponding to wear connection road among bottom plate from top to bottom；Institute
The connecting rod stated wear connect wear connect road in and both ends be fixed on tool apron.
It further, further include feeler lever；The feeler lever is mounted on the centre of cutterhead.
Further, multiple annular drill body concentric settings from top to bottom；The outer diameter of multiple annular drill bodies
It is sequentially increased from top to bottom.
Further, it is uniformly provided with link slot from top to bottom on the outside of the surrounding of the driving column；Multiple rotating bars
It is socketed in the link slot of driving column respectively.
Further, the hob cutter mechanism is made of titanium alloy material.
Further, the driving column is in up-small and down-big pyramidal structure.
Beneficial effects of the present invention
1. the present invention changes the structure of traditional hobboing cutter, hobboing cutter is replaced with hob cutter mechanism by the present invention, and hob cutter mechanism includes more
A annular drill body, bottom plate, multiple rotating bars, closing cap, driving column, multiple elastomers, drive rod, driving cylinder, by multiple rotations
Bar is evenly distributed on bottom plate upper end surrounding as socket carrier, carries out broken rock by multiple annular drill bodies, is with multiple rotating bars
Multiple annular drill bodies are worn and are connect on the outside of multiple rotating bars by carrier, then are sealed multiple rotating bar upper ends by closing cap
It closes, is thusly-formed the broken rock structure of multiple annular drill body pivot bush units；In addition, the bottom of multiple rotating bars of the invention is by turning
Axis is rotatably connected on bottom plate, is then connected on bottom plate in the lower end inside of rotating bar by elastomer, such multiple rotations
Bar is pulled to the axis rotation of the bottom plate of circular configuration by elastomer and is tilted, then the driving by being mounted on the inside of multiple rotating bars
Multiple rotating bars are abutted on the outside of the surrounding of column, so that rotating bar is limited, so when multiple annular drill bodies are socketed in multiple rotations
By rotation driving cylinder after on bar, drive rod rotation is driven to move up and down, and then driving column is driven to move up and down, so changed
Become the abutting degree on the outside of the surrounding of driving column to rotating bar, so that multiple annular insides of drill body and the outside of multiple rotating bars
There are suitable annular floating running clearances, the buffering leeway for enabling annular drill body to have rotation to float in broken rock, this makes
The buffering leeway that annular drill body there can be autorotation to float when broken rock is squeezed by rock is obtained, so that the stress surface of annular drill body
Shared, play the purpose for protecting annular drill body, while achieving the purpose that be adapted to broken rock face, reaches better rock breaking efficiency.
2. controller control telescoping drive mechanism and rotary drive mechanism collaboration operating of the invention, when controller control is stretched
Controller synchronously control rotary drive mechanism when contracting driving mechanism moves up at this time is rotated；When controller controls
Controller synchronously control rotary drive mechanism when telescoping drive mechanism moves down at this time stops rotating movement, so realizes
The work compound of automation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic cross-sectional view of hob cutter mechanism of the present invention.
Fig. 3 is the enlarged structure schematic diagram of side in Fig. 2 of the present invention.
Fig. 4 is the enlarged structure schematic diagram of inventive closure lid, driving column, drive rod.
Fig. 5 is the overlooking structure diagram of present invention driving column.
Fig. 6 is the overlooking structure diagram of present invention driving column, rotating bar, annular drill body.
There are the structural schematic diagrams in annular floating gap after Fig. 7 moves radially for rotating bar in Fig. 6.
Fig. 8 is that hob cutter mechanism is mounted on the structural schematic diagram in tool apron.
Specific embodiment
The content of present invention is described in further detail with reference to the accompanying drawing.
As shown in Fig. 1 to Fig. 8 a kind of anti-well drilling machine of automatic drive type, including base support 1, telescoping drive mechanism 2, rotation
Driving mechanism 3, controller 9, drilling rod 4, cutterhead 5, tool apron 6, hob cutter mechanism 7.The telescoping drive mechanism 2 can for cylinder or
Person's oil cylinder, telescoping drive mechanism 2 are mounted on base support 1；The rotary drive mechanism 3 can have the driving of rotary shaft
Motor, rotary drive mechanism 3 are mounted on 2 upper end of telescoping drive mechanism；The controller 9 be mounted on base support 1 and
It is separately connected telescoping drive mechanism 2 and rotary drive mechanism 3；4 bottom of drilling rod is mounted on rotary drive mechanism 3；Institute
4 upper end of the drilling rod installation cutterhead 5 stated；5 upper end of cutterhead is installed by multiple tool aprons 6；As shown in figure 8, the hob cutter mechanism 7
It is mounted in tool apron 6 by connecting rod 67, the both ends of connecting rod can be fastened on the two sides of tool apron by nut.Such as the institute of Fig. 2 to 7
Show, the hob cutter mechanism 7 includes multiple annular drill bodies 75, bottom plate 71, multiple rotating bars 72, closing cap 74, drives column 73, is more
A elastomer 78, drive rod 76, driving cylinder 77.The bottom of multiple rotating bars 72 is rotatably connected on bottom by shaft 721
On plate 71.Multiple rotating bars 72 are evenly distributed on 71 upper end surrounding of bottom plate；The lower end inside of the rotating bar 72 is logical
Elastomer 78 is crossed to be connected on bottom plate 71；Multiple annular drill bodies 75 are socketed in downwards from the upper end of multiple rotating bars 72
The outside of multiple rotating bars 72；The driving column 73 is mounted on multiple 72 insides of rotating bar and drives on the outside of the surrounding of column 73
It is abutted with multiple rotating bars 72；The lower end two sides of the driving column 73 rotate one drive rod 76 of installation respectively；The drive
The lower end difference screw thread rotation of lever 76 connects a driving cylinder 77；The lower end rotary clamping of the driving cylinder 77 is in bottom plate 71
On；The closing cap 74 is mounted on the upper end of multiple rotating bars 72 and the upper end of annular drill body 75 is carried out closing locking.
As shown in Figures 2 to 4, further preferably, the hob cutter mechanism 7 further includes gag lever post 79；The gag lever post 79
L-shaped structure；Sliding limiting slot 761 is equipped on the outside of the upper end of the drive rod 76；The intermediate two sides of the bottom plate 71 point
It An Zhuan not a limit plate 79；79 lower end of gag lever post is fixed on bottom plate 71；The drive rod 76 passes through sliding limit
The position sliding limit of slot 761 is connected to the upper end of gag lever post 79.
As shown in Figures 2 to 4, further preferably, the upper end of the drive rod 76 is equipped with rotary clamping tooth 762；Described
The lower end two sides of driving column 73 are respectively equipped with revotating card access slot 732；The drive rod 76 passes through rotary clamping tooth rotary clamping
In the revotating card access slot of driving column lower end；The lower end of the drive rod 76 is surrounded by external screw thread 763；The driving cylinder
77 upper end is equipped with internal thread groove 771；The lower end of the drive rod 76 is connected to the interior spiral shell of driving cylinder 77 by external screw thread 763
In groove 771；The lower end of the driving cylinder 77 is equipped with and is surrounded by annular spacing groove 772；The two sides of the bottom plate 71 point
Not She You inverted T-shaped structure round limiting slot 711；The driving cylinder 77 passes through 772 rotary clamping of annular spacing groove of lower end
In the round limiting slot 711 of bottom plate 71.Further preferably, the lower end of the closing cap 74 is equipped with external screw thread ring 741；It is described
Driving column 73 upper end be equipped with internal screw thread annular groove 731；The external screw thread ring 741 is connected to drive by the screw thread rotation in outside
In the internal screw thread annular groove 731 of dynamic 73 upper end of column.Further preferably, the closing cap 74, driving column 73, among bottom plate 71 from upper
And it has corresponding wear in position and connects road 732；The connecting rod wear connect wear connect road 732 in and both ends be fixed on knife
On seat 6.It further preferably, further include feeler lever 8；The feeler lever 8 is mounted on the centre of cutterhead 5.Further preferably, described more
A annular drill body 75 concentric setting from top to bottom；The outer diameter of multiple annular drill bodies 75 is sequentially increased from top to bottom.Such as
Shown in Fig. 5 to 7, further preferably, it is uniformly provided with link slot 733 from top to bottom on the outside of the surrounding of the driving column 73；It is described
Multiple rotating bars 72 be socketed in respectively driving column 73 link slot 733 in.Further preferably, the hob cutter mechanism 7 is by titanium
Alloy material is made.The driving column 73 is in up-small and down-big pyramidal structure,.
The present invention changes the structure of traditional hobboing cutter, and hobboing cutter is replaced with hob cutter mechanism 7 by the present invention, and hob cutter mechanism 7 wraps
Include multiple annular drill bodies 75, bottom plate 71, multiple rotating bars 72, closing cap 74, driving column 73, multiple elastomers 78, drive rod 76,
Cylinder 77 is driven, multiple rotating bars 72 are evenly distributed on 71 upper end surrounding of bottom plate as socket carrier, pass through multiple annular drill bodies
75 carry out broken rock, wear multiple annular drill bodies 75 for carrier with multiple rotating bars 72 and connect on multiple 72 outsides of rotating bars, then lead to
It crosses closing cap 74 to close multiple 72 upper ends of rotating bar, is thusly-formed the broken rock knot of 75 pivot bush unit of multiple annular drill bodies
Structure；In addition, the bottom of multiple rotating bars 72 of the invention is rotatably connected on bottom plate 71 by shaft 721, then in rotating bar
72 lower end inside is connected on bottom plate 71 by elastomer 78, and such multiple rotating bars 72 are pulled by elastomer to circular configuration
Bottom plate 71 axis rotation inclination, then abutted on the outside of surrounding by the driving column 73 for being mounted on 72 inside of multiple rotating bars more
A rotating bar 72 so passes through after multiple annular drill bodies 75 are socketed in multiple rotating bars 72 so that rotating bar 72 is limited
Rotation driving cylinder 77, drives the rotation of drive rod 76 to move up and down, and then driving column 73 is driven to move up and down, and so changes and drives
To the abutting degree of rotating bar 72 on the outside of the surrounding of dynamic column 73, so that multiple rotating bars 72 are pulled by elastomer 78 to circular configuration
The axis rotation of bottom plate 71 tilts, so that there are suitable for the inside of multiple annular drill bodies 75 and the outside of multiple rotating bars 72
Annular floating gap 751, shown in such 7, with achieve the purpose that be adapted to broken rock face, reach better rock breaking efficiency.The present invention
Controller control telescoping drive mechanism and rotary drive mechanism collaboration operating, when controller controls telescoping drive mechanism to moving up
Controller synchronously control rotary drive mechanism when dynamic at this time is rotated；When controller control telescoping drive mechanism is downward
Controller synchronously control rotary drive mechanism when mobile at this time stops rotating movement, so realizes the collaboration work of automation
Industry.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of anti-well drilling machine of automatic drive type, which is characterized in that including base support, telescoping drive mechanism, rotary driving machine
Structure, controller, drilling rod, cutterhead, tool apron, hob cutter mechanism；The telescoping drive mechanism is mounted on base support；The rotation
Turn driving mechanism and is mounted on telescoping drive mechanism upper end；The controller is mounted on base support and is separately connected flexible
Driving mechanism and rotary drive mechanism；The drilling rod bottom is mounted on rotary drive mechanism；The drilling rod upper end installation
Cutterhead；The cutterhead upper end is installed by multiple tool aprons；The hob cutter mechanism is mounted in tool apron by connecting rod；The rolling
Cutter mechanism includes multiple annular drill bodies, bottom plate, multiple rotating bars, closing cap, driving column, multiple elastomers, drive rod, driving
Cylinder；The bottom of multiple rotating bars is rotatably connected on bottom plate by shaft；Multiple rotating bars are evenly distributed on
Bottom plate upper end surrounding；The lower end inside of the rotating bar is connected on bottom plate by elastomer；Multiple annular drill bodies
It is socketed in the outside of multiple rotating bars downwards from the upper end of multiple rotating bars；The driving column is mounted in multiple rotating bars
Side and surrounding outside and the multiple rotating bars abutting for driving column；The lower end two sides of the driving column rotate installation one respectively
Drive rod；The lower end difference screw thread rotation of the drive rod connects a driving cylinder；The lower end revotating card of the driving cylinder
It connects on bottom plate；The closing cap is mounted on the upper end of multiple rotating bars and the upper end of annular drill body is carried out closing locking.
2. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that the hob cutter mechanism further includes limit
Position bar；The L-shaped structure of the gag lever post；Sliding limiting slot is equipped on the outside of the upper end of the drive rod；The bottom plate
Intermediate two sides are installed by one limit plate respectively；The gag lever post lower end is fixed on bottom plate；The drive rod passes through sliding
Limiting slot sliding limit is connected to the upper end of gag lever post.
3. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that the upper end of the drive rod is equipped with
Rotary clamping tooth；The lower end two sides of the driving column are respectively equipped with revotating card access slot；The drive rod passes through rotary clamping
Tooth spiral turns to be connected in the revotating card access slot of driving column lower end；The lower end of the drive rod is surrounded by external screw thread；Described
The upper end of cylinder is driven to be equipped with internal thread groove；The lower end of the drive rod is connected to the internal thread groove of driving cylinder by external screw thread
It is interior；The lower end of the driving cylinder is equipped with and is surrounded by annular spacing groove；The two sides of the bottom plate are respectively equipped with inverted T-shaped structure
Round limiting slot；The driving cylinder is by the annular spacing groove rotary clamping of lower end in the round limiting slot of bottom plate.
4. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that the lower end of the closing cap is equipped with
External screw thread ring；The upper end of the driving column is equipped with internal screw thread annular groove；The external screw thread ring is connected by the screw thread rotation in outside
It connects in the internal screw thread annular groove of driving column upper end.
5. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that the closing cap, driving column, bottom
It is equipped with that position is corresponding wears connection road among plate from top to bottom；The connecting rod wear connect wear connect road in and both ends fix
On tool apron.
6. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that further include feeler lever；The feeler lever
It is mounted on the centre of cutterhead.
7. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that described multiple annular drill bodies are from upper
Concentric setting under and；The outer diameter of multiple annular drill bodies is sequentially increased from top to bottom.
8. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that on the outside of the surrounding of the driving column
It is uniformly provided with link slot from top to bottom；Multiple rotating bars are socketed in respectively in the link slot of driving column.
9. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that the hob cutter mechanism is by titanium alloy
Material is made.
10. the anti-well drilling machine of automatic drive type according to claim 1, which is characterized in that the driving column present it is small under
Big pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353018.2A CN110295845B (en) | 2019-04-29 | 2019-04-29 | Automatic driving type raise boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353018.2A CN110295845B (en) | 2019-04-29 | 2019-04-29 | Automatic driving type raise boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110295845A true CN110295845A (en) | 2019-10-01 |
| CN110295845B CN110295845B (en) | 2020-12-01 |
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ID=68026583
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910353018.2A Active CN110295845B (en) | 2019-04-29 | 2019-04-29 | Automatic driving type raise boring machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN110295845B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165173A (en) * | 2021-12-14 | 2022-03-11 | 江苏和信石油机械有限公司 | Quick assembly type drill rod and drill bit structure for rescue |
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| CN107905736A (en) * | 2017-11-14 | 2018-04-13 | 江苏和信石油机械有限公司 | A kind of floating type anti-well bores machine bit |
| CN107905735A (en) * | 2017-11-14 | 2018-04-13 | 江苏和信石油机械有限公司 | A kind of anti-well drilling machine of floating gear type |
| CN109281684A (en) * | 2018-10-25 | 2019-01-29 | 北京中煤矿山工程有限公司 | A kind of anti-well drilling machine inserted tooth hob of quick-detachable sliding bearing |
| CN109538114A (en) * | 2018-11-06 | 2019-03-29 | 江苏和信石油机械有限公司 | A kind of anti-well drilling machine of attaching type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165173A (en) * | 2021-12-14 | 2022-03-11 | 江苏和信石油机械有限公司 | Quick assembly type drill rod and drill bit structure for rescue |
| CN114165173B (en) * | 2021-12-14 | 2023-07-25 | 江苏和信石油机械有限公司 | Quick assembly type drill rod and drill bit structure for rescue |
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