CN106891283A - It is contained within the fixed oil well drill bit assembly of rotary joint - Google Patents
It is contained within the fixed oil well drill bit assembly of rotary joint Download PDFInfo
- Publication number
- CN106891283A CN106891283A CN201710187131.9A CN201710187131A CN106891283A CN 106891283 A CN106891283 A CN 106891283A CN 201710187131 A CN201710187131 A CN 201710187131A CN 106891283 A CN106891283 A CN 106891283A
- Authority
- CN
- China
- Prior art keywords
- positioning tube
- oil well
- positioning
- locating dowel
- sleeve
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses the fixed oil well drill bit assembly for being contained within rotary joint, including positioning seat, locating dowel, positioning tube and telescoping rod, the locating dowel is arranged on the upper surface of positioning seat, one end of remotely located seat is connected by ball pin with the cylinder bottom of positioning tube in locating dowel, the centre bore of positioning tube is screwed hole, one end of the telescoping rod is connected by ball pin with the upper surface of positioning seat, and the other end of telescoping rod is connected by ball pin with the side wall of positioning tube.Telescoping rod can be used.This not only enables the maintenance of drill for oil well be smoothed out, it is thus also avoided that the situation that drill for oil well topples over the pin for injuring workman by a crashing object occurs；Simultaneously, can also be after the oil bit maintenance at visual angle be completed, by rotational positioning cylinder and elongation or shorten telescoping rod and rotate oil bit, can simply and easily obtain other places for needing repairing of oil bit towards staff, improve the operating efficiency of maintenance oil bit.
Description
Technical field
The present invention relates to a kind of drill for oil well fixing device, and in particular to be contained within the fixed drill for oil well group of rotary joint
Part.
Background technology
Oil bit is the important tool of oil drilling, is its service behaviour for drilling through oil when oil is exploited
Quality will directly affect drilling quality, drilling efficiency and drilling cost.Oil bit generally need to by pouring, roughing, carving
The techniques such as quarter, finishing, welding blade, welding cutting tooth.After welding blade or cutting tooth is completed, need to be to oil bit
Surface situation cleaning, the welding slag that will be produced in welding process is cleaned out, to improve the quality of oil bit.
Oil bit is the most arduous oil drilling tool of condition of work in oil excavating equipment.When cutting on oil bit
Cut tooth or cutting blade is produced when wearing and tearing or even coming off, it is necessary to be repaired to oil bit.During maintenance, needing first will be frayed
Cutting tooth or cutting blade are removed, and are cleaned out by its mounting groove, then weld upper new cutting tooth or cutting blade.
But in the mode of this maintenance, service worker directly puts on the ground oil bit, there is no associated clamps to incite somebody to action
It is fixed.Because no part fixes oil bit, repair oil bit when, easily make oil bit produce rock and
Fall down, this not only bad for oil bit maintenance, the surface of oil bit can be caused damage, be also easy to injure workman's by a crashing object
Pin.Also, when workman is completed after the oil bit at visual angle is cleared up or welded, it is necessary to rotate oil bit or movement oneself
Orientation, rotating oil bit easily makes oil bit crank and topples over, and the mobile orientation of oneself then increased cleaning weldering
The complexity of slag.
The content of the invention
Present invention aim at the fixed oil well drill bit assembly that offer is contained within rotary joint, solve in maintenance oil bit
When, because no part fixes oil bit, oil bit easily produces and rocks and fall down, and this is not only bad for petroleum drilling
The maintenance of head, is also easy to injure by a crashing object the problem of the pin of workman.
The present invention is achieved through the following technical solutions：
The fixed oil well drill bit assembly of rotary joint, including positioning seat, locating dowel, positioning tube and telescoping rod are contained within,
The locating dowel is arranged on the upper surface of positioning seat, and locating dowel axis perpendicular to the upper surface of positioning seat, in locating dowel
One end of remotely located seat is connected by ball pin with the cylinder bottom of positioning tube, the positioning tube and locating dowel coaxial line, and positioning
The cross sectional dimensions of cylinder is more than the cross sectional dimensions of locating dowel, while the centre bore of positioning tube is screwed hole, the telescoping rod
One end be connected with the upper surface of positioning seat by ball pin, the other end of telescoping rod is connected by ball pin with the side wall of positioning tube
Connect.Telescoping rod can be using cooperation of expansion link, pneumatic cylinder, hydraulic cylinder or screw rod and orifice etc..
When using, drill for oil well is placed in positioning tube, and by the screwed hole on positioning tube and drill for oil well connecting portion
Screw thread coordinate, to fix drill for oil well；Meanwhile, as needed rotational positioning cylinder and elongation or shorten telescoping rod,
Drill for oil well is set to rotate to arbitrarily angled and be fixed.This not only enables the maintenance of drill for oil well be smoothed out, it is thus also avoided that
The situation that drill for oil well topples over the pin for injuring workman by a crashing object occurs；Meanwhile, can also lead to after the oil bit maintenance at visual angle is completed
Cross rotational positioning cylinder and elongation or shorten telescoping rod and rotate oil bit, can simply and easily obtain oil bit its
The place that he needs repairing improves the operating efficiency of maintenance oil bit towards staff.
Further, the telescoping rod includes mobile bar, sleeve and bolt I, and one end of the mobile bar passes through ball pin
Be connected with the side wall of positioning tube, the other end of mobile bar from the one end open insertion sleeve of sleeve, the other end of the sleeve
It is connected with the upper surface of positioning seat by ball pin, the bolt I is held out against in bushing core hole after the barrel of sleeve
Mobile bar.
Further, gathering sill, the diameter parallel and sleeve of the gathering sill are provided with the centre bore hole wall of sleeve
Axis, one end of remotely located cylinder is provided with guide pad on the side wall of mobile bar, and the guide pad is located in gathering sill.
Further, the gathering sill and guide pad have several, and gathering sill is symmetrical centered on the axis of sleeve
Line is evenly provided on the centre bore hole wall of sleeve, and guide pad line of symmetry centered on the axis of mobile bar is evenly provided on
On the side wall of mobile bar.
Further, also including bolt II, the screw rod end of the bolt II is located at positioning after the side wall of positioning tube
In the centre bore of cylinder, and the axis of bolt II and the axis of positioning tube are vertical and intersect.When the drill for oil well connecting portion chi of maintenance
During very little size less than positioning tube, first the drill for oil well is placed in positioning tube, then swivel bolt II, makes the spiral shell of bolt II
Bar end holds out against the connecting portion of drill for oil well, to fix drill for oil well；This fixing device is so set not only to be only applicable to one kind
Drill for oil well, can also fix the drill for oil well of other sizes, expand the suitable application area of this fixing device.
Further, atmospheric pressure pole is provided between the cylinder bottom and the upper surface of positioning seat of positioning tube, the atmospheric pressure pole
One end is connected by ball pin with the upper surface of positioning seat, and the other end of the atmospheric pressure pole is connected by ball pin with the cylinder bottom of positioning tube
Connect.Atmospheric pressure pole is played a supporting role to positioning tube, and atmospheric pressure pole can be elongated or shortened with the rotation of positioning tube.
Further, the atmospheric pressure pole has some, and line of symmetry is evenly provided on centered on the axis of locating dowel
Around locating dowel.
Further, if the telescoping rod has pole-footing, and line of symmetry is equably set centered on the axis of positioning tube
Around positioning tube.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is contained within the fixed oil well drill bit assembly of rotary joint, when using, drill for oil well is placed on into positioning
In cylinder, and the screw thread of the screwed hole on positioning tube and drill for oil well connecting portion is coordinated, to fix drill for oil well；Meanwhile, root
According to needing rotational positioning cylinder and elongation or shortening telescoping rod, drill for oil well is set to rotate to arbitrarily angled and be fixed.
This not only enables the maintenance of drill for oil well be smoothed out, it is thus also avoided that the situation that drill for oil well topples over the pin for injuring workman by a crashing object occurs；
Meanwhile, can also be after the oil bit maintenance at visual angle be completed, by rotational positioning cylinder and elongation or shortening expansion link
Part rotates oil bit, can simply and easily obtain other places for needing repairing of oil bit towards staff, improves
The operating efficiency of maintenance oil bit；
2nd, the present invention is contained within the fixed oil well drill bit assembly of rotary joint, when the drill for oil well connecting portion size of maintenance is small
When the size of positioning tube, first the drill for oil well is placed in positioning tube, then swivel bolt II, makes the screw rod end of bolt II
End holds out against the connecting portion of drill for oil well, to fix drill for oil well；This fixing device is so set not only to be only applicable to a kind of oil well
Drill bit, can also fix the drill for oil well of other sizes, expand the suitable application area of this fixing device.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is the cross-sectional view of sleeve；
Fig. 3 is the structural representation of mobile bar.
Mark and corresponding parts title in accompanying drawing：
1- positioning seats, 2- locating dowels, 3- positioning tubes, 4- telescoping rods, 5- mobile bars, 6- sleeves, 7- bolts I, 8- is oriented to
Groove, 9- guide pads, 10- bolts II, 11- atmospheric pressure poles.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
Embodiment 1
As shown in Figure 1-Figure 3, the present invention is contained within the fixed oil well drill bit assembly of rotary joint, including positioning seat 1, positioning
Post 2, positioning tube 3 and telescoping rod 4, the locating dowel 2 are arranged on the upper surface of positioning seat 1, and locating dowel 2 axis perpendicular to
The upper surface of positioning seat 1, one end of remotely located seat 1 is connected by ball pin with the cylinder bottom of positioning tube 3 in locating dowel 2, institute
Positioning tube 3 and the coaxial line of locating dowel 2 are stated, and the cross sectional dimensions of positioning tube 3 is more than the cross sectional dimensions of locating dowel 2, while determining
The centre bore of position cylinder 3 is screwed hole, and one end of the telescoping rod 4 is connected by ball pin with the upper surface of positioning seat 1, expansion link
The other end of part 4 is connected by ball pin with the side wall of positioning tube 3.Telescoping rod 4 can use expansion link, pneumatic cylinder, hydraulic cylinder
Or the cooperation of screw rod and orifice etc..
When using, drill for oil well is placed in positioning tube 3, and the screwed hole on positioning tube 3 is connected with drill for oil well
The screw thread in portion coordinates, to fix drill for oil well；Meanwhile, as needed rotational positioning cylinder 3 and elongation or shorten expansion link
Part 4, makes drill for oil well rotate to arbitrarily angled and be fixed.This not only enables the maintenance of drill for oil well be smoothed out, and also keeps away
The situation appearance that drill for oil well topples over the pin for injuring workman by a crashing object is exempted from；Meanwhile, can also complete the oil bit maintenance at visual angle
Afterwards, by rotational positioning cylinder 3 and elongation or shorten telescoping rod 4 and rotate oil bit, can simply and easily obtain stone
Other places for needing repairing of oily drill bit improve the operating efficiency of maintenance oil bit towards staff.
Embodiment 2
The present embodiment is on the basis of embodiment 1, the present invention to be further illustrated.
As shown in Figure 1-Figure 3, the present invention is contained within the fixed oil well drill bit assembly of rotary joint, and the telescoping rod 4 is wrapped
Mobile bar 5, sleeve 6 and bolt I 7 are included, one end of the mobile bar 5 is connected by ball pin with the side wall of positioning tube 3, mobile bar 5
The other end from the one end open insertion sleeve 6 of sleeve 6, the upper table that the other end of the sleeve 6 passes through ball pin and positioning seat 1
Face connects, and the bolt I 7 holds out against the mobile bar 5 in the centre bore of sleeve 6 after the barrel of sleeve 6.
Further, gathering sill 8, diameter parallel and the set of the gathering sill 8 are provided with the centre bore hole wall of sleeve 6
The axis of cylinder 6, one end of remotely located cylinder 3 is provided with guide pad 9 on the side wall of mobile bar 5, and the guide pad 9 is located at and is oriented to
In groove 8.
Further, the gathering sill 8 and guide pad 9 have several, and gathering sill 8 is centered on the axis of sleeve 6
Line of symmetry is evenly provided on the centre bore hole wall of sleeve 6, and the line of symmetry centered on the axis of mobile bar 5 of guide pad 9 is uniform
Be arranged on the side wall of mobile bar 5.
Further, also including bolt II 10, the screw rod end of the bolt II 10 is located at after the side wall of positioning tube 3
In the centre bore of positioning tube 3, and the axis of bolt II 10 is vertical with the axis of positioning tube 3 and intersect.When the drill for oil well of maintenance
When connecting portion size is less than the size of positioning tube 3, first the drill for oil well is placed in positioning tube 3, then swivel bolt II 10,
The screw rod end of bolt II 10 is set to hold out against the connecting portion of drill for oil well, to fix drill for oil well；So make this fixing device not
A kind of drill for oil well is only only applicable to, the drill for oil well of other sizes can be also fixed, the suitable application area of this fixing device is expanded.
Embodiment 2
The present embodiment is on the basis of embodiment 1, the present invention to be further illustrated.
As shown in Figure 1-Figure 3, the present invention is contained within the fixed oil well drill bit assembly of rotary joint, at the cylinder bottom of positioning tube 3
Atmospheric pressure pole 11 is provided with and the upper surface of positioning seat 1 between, one end of the atmospheric pressure pole 11 is by ball pin and the upper table of positioning seat 1
Face is connected, and the other end of the atmospheric pressure pole 11 is connected by ball pin with the cylinder bottom of positioning tube 3.Atmospheric pressure pole 11 is played to positioning tube 3
Supporting role, and atmospheric pressure pole can be with the rotation of positioning tube 3 elongation or shortening.
Further, the atmospheric pressure pole 11 has some, and line of symmetry is equably set centered on the axis of locating dowel 2
Around locating dowel 2.
Further, if the telescoping rod 4 has pole-footing, and line of symmetry equably sets centered on the axis of positioning tube 3
Put around positioning tube 3.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (8)
1. the fixed oil well drill bit assembly of rotary joint is contained within, it is characterised in that：Including positioning seat (1), locating dowel (2), determine
Position cylinder (3) and telescoping rod (4), the locating dowel (2) are arranged on the upper surface of positioning seat (1), and the axis of locating dowel (2) hangs down
Directly in the upper surface of positioning seat (1), in one end of the upper remotely located seat (1) of locating dowel (2) by ball pin and the cylinder of positioning tube (3)
Bottom connection, the positioning tube (3) and locating dowel (2) coaxial line, and the cross sectional dimensions of positioning tube (3) is more than locating dowel (2)
Cross sectional dimensions, while the centre bore of positioning tube (3) is screwed hole, one end of the telescoping rod (4) is by ball pin and fixed
The upper surface connection of position seat (1), the other end of telescoping rod (4) is connected by ball pin with the side wall of positioning tube (3).
2. the fixed oil well drill bit assembly for being contained within rotary joint according to claim 1, it is characterised in that：It is described flexible
Rod member (4) includes mobile bar (5), sleeve (6) and bolt I (7), and one end of the mobile bar (5) is by ball pin and positioning tube (3)
The connection of side wall, the other end of mobile bar (5) from the one end open insertion sleeve (6) of sleeve (6), the sleeve (6) it is another
One end is connected by ball pin with the upper surface of positioning seat (1), and the bolt I (7) holds out against positioned at set after the barrel of sleeve (6)
Mobile bar (5) in cylinder (6) centre bore.
3. the fixed oil well drill bit assembly for being contained within rotary joint according to claim 2, it is characterised in that：In sleeve
(6) gathering sill (8), the diameter parallel of the gathering sill (8) and the axis of sleeve (6) are provided with centre bore hole wall, are being moved
One end of remotely located cylinder (3) is provided with guide pad (9) on the side wall of lever (5), and the guide pad (9) is positioned at gathering sill (8)
In.
4. the fixed oil well drill bit assembly for being contained within rotary joint according to claim 3, it is characterised in that：The guiding
Groove (8) and guide pad (9) have several, and gathering sill (8) line of symmetry centered on the axis of sleeve (6) is evenly provided on
On the centre bore hole wall of sleeve (6), guide pad (9) line of symmetry centered on the axis of mobile bar (5) is evenly provided on movement
On the side wall of bar (5).
5. the fixed oil well drill bit assembly for being contained within rotary joint according to claim 1, it is characterised in that：Also include spiral shell
Bolt II (10), the screw rod end of the bolt II (10) is located at the centre bore of positioning tube (3) after the side wall of positioning tube (3)
In, and the axis of bolt II (10) is vertical with the axis of positioning tube (3) and intersect.
6. the fixed oil well drill bit assembly for being contained within rotary joint according to claim 1, it is characterised in that：In positioning tube
(3) atmospheric pressure pole (11) is provided between cylinder bottom and the upper surface of positioning seat (1), one end of the atmospheric pressure pole (11) passes through ball pin
Upper surface with positioning seat (1) is connected, and the other end of the atmospheric pressure pole (11) is connected by ball pin with the cylinder bottom of positioning tube (3).
7. the fixed oil well drill bit assembly for being contained within rotary joint according to claim 6, it is characterised in that：The air pressure
Bar (11) has some, and line of symmetry is evenly provided on around locating dowel (2) centered on the axis of locating dowel (2).
8. the fixed oil well drill bit assembly for being contained within rotary joint according to any one of claim 1-7, its feature exists
In：The telescoping rod (4) is if having pole-footing, and line of symmetry is evenly provided on positioning tube centered on the axis of positioning tube (3)
(3) around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187131.9A CN106891283A (en) | 2017-03-27 | 2017-03-27 | It is contained within the fixed oil well drill bit assembly of rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187131.9A CN106891283A (en) | 2017-03-27 | 2017-03-27 | It is contained within the fixed oil well drill bit assembly of rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106891283A true CN106891283A (en) | 2017-06-27 |
Family
ID=59193247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187131.9A Pending CN106891283A (en) | 2017-03-27 | 2017-03-27 | It is contained within the fixed oil well drill bit assembly of rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106891283A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497000A (en) * | 2019-09-02 | 2019-11-26 | 立府精密机械有限公司 | Bore angle fast adjuster |
| CN110497244A (en) * | 2019-09-02 | 2019-11-26 | 立府精密机械有限公司 | Bore angle regulating device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004291156A (en) * | 2003-03-27 | 2004-10-21 | Sumitomo Heavy Ind Ltd | Clamping device, and vertical direction driving positioning device with tilt function having it |
| CN201329501Y (en) * | 2008-12-05 | 2009-10-21 | 中国第一汽车集团公司 | Slide wedge processing device |
| CN103537924A (en) * | 2013-09-29 | 2014-01-29 | 芜湖永裕汽车工业有限公司 | Engine air cylinder cover machining stationary fixture with ball-shaped support |
| CN105643508A (en) * | 2016-03-07 | 2016-06-08 | 成都高峰石油机械有限公司 | Oil drill pipe fixing mechanism |
| CN205651091U (en) * | 2016-05-25 | 2016-10-19 | 徐工集团工程机械股份有限公司 | Multi -functional frock |
| CN106041852A (en) * | 2016-07-14 | 2016-10-26 | 上海航天测控通信研究所 | Large-angle turnover device |
| CN206568048U (en) * | 2017-03-27 | 2017-10-20 | 成都大漠石油技术有限公司 | It is provided with the drill for oil well fixing device of ball pin |
-
2017
- 2017-03-27 CN CN201710187131.9A patent/CN106891283A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004291156A (en) * | 2003-03-27 | 2004-10-21 | Sumitomo Heavy Ind Ltd | Clamping device, and vertical direction driving positioning device with tilt function having it |
| CN201329501Y (en) * | 2008-12-05 | 2009-10-21 | 中国第一汽车集团公司 | Slide wedge processing device |
| CN103537924A (en) * | 2013-09-29 | 2014-01-29 | 芜湖永裕汽车工业有限公司 | Engine air cylinder cover machining stationary fixture with ball-shaped support |
| CN105643508A (en) * | 2016-03-07 | 2016-06-08 | 成都高峰石油机械有限公司 | Oil drill pipe fixing mechanism |
| CN205651091U (en) * | 2016-05-25 | 2016-10-19 | 徐工集团工程机械股份有限公司 | Multi -functional frock |
| CN106041852A (en) * | 2016-07-14 | 2016-10-26 | 上海航天测控通信研究所 | Large-angle turnover device |
| CN206568048U (en) * | 2017-03-27 | 2017-10-20 | 成都大漠石油技术有限公司 | It is provided with the drill for oil well fixing device of ball pin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497000A (en) * | 2019-09-02 | 2019-11-26 | 立府精密机械有限公司 | Bore angle fast adjuster |
| CN110497244A (en) * | 2019-09-02 | 2019-11-26 | 立府精密机械有限公司 | Bore angle regulating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2007138335A (en) | EQUIPMENT AND METHOD FOR CREATING MICRO-SUPPORTS IN SOIL, INTENDED, IN PARTICULAR, FOR ATTACHING ACTIVE ANCHORS | |
| CN106891283A (en) | It is contained within the fixed oil well drill bit assembly of rotary joint | |
| CN101733609A (en) | Welding roller bracket | |
| CN206568048U (en) | It is provided with the drill for oil well fixing device of ball pin | |
| US3731364A (en) | Broken sprinkler standpipe removing tool | |
| CN103527229B (en) | A kind of protection breaker of the Anchor Agent for anchor cable and anchoring process | |
| CN206732856U (en) | Drill for oil well maintenance clamping assembly | |
| CN206588541U (en) | Oil bit finishing mounting and clamping system | |
| CN203879398U (en) | Drill rod of rotary drilling rig adopting threaded connection between core section rod pipe body and square head | |
| CN206614504U (en) | It is exclusively used in the equipment of oil drilling tool | |
| CN109176060B (en) | Excavation bucket tooth drilling clamping device for earthwork construction engineering machinery | |
| CN210530749U (en) | Self-advancing pipe shed drilling tool for tunnel soft rock excavation | |
| CN109113603A (en) | A kind of exploration dustproof drill | |
| CN105965317A (en) | Safety protection sleeve for drilling of machine tool | |
| CN213654210U (en) | Adjustable scaffold wall connecting piece | |
| CN205558856U (en) | Device is catched to simple and easy efficient fracture drilling rod | |
| CN105672386B (en) | A kind of geosyncline excavator | |
| JP4792506B2 (en) | Method and apparatus for rock drilling | |
| CN209465962U (en) | A kind of scraper bowl bore hole Telescopic positioning device | |
| CN209855713U (en) | Professional rock drilling and taking device for rotary drilling rig | |
| KR20120125725A (en) | Device and method for mounting line-mark | |
| CN112727874A (en) | Structure for quickly connecting displacement rod | |
| CN217462043U (en) | Drill rod sweeper for pile foundation construction | |
| JP6590346B2 (en) | Drilling attachment, drilling machine, tunnel wall surface drilling method | |
| CN106863239A (en) | Drill for oil well cutting tooth repairs special tooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |