CN108756785B - Pliers head swing mechanism for iron roughneck - Google Patents
Pliers head swing mechanism for iron roughneck Download PDFInfo
- Publication number
- CN108756785B CN108756785B CN201810836652.7A CN201810836652A CN108756785B CN 108756785 B CN108756785 B CN 108756785B CN 201810836652 A CN201810836652 A CN 201810836652A CN 108756785 B CN108756785 B CN 108756785B
- Authority
- CN
- China
- Prior art keywords
- adjusting
- rod
- rod body
- clamp
- clamp head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 30
- 238000005553 drilling Methods 0.000 abstract description 22
- 230000006698 induction Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
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 application discloses a clamp head swinging mechanism of an iron driller, which relates to the field of drilling machinery and comprises a clamp head moving mechanism, a clamp head buckling device and a clamp head swinging mechanism, wherein the clamp head buckling device and the clamp head swinging mechanism are arranged on one side of the moving mechanism; the driving device drives the connecting frame and the clamp body swing bracket to rotate relatively. Therefore, the application can solve the problem of angle rotation of the iron driller in the aspect of drilling, can improve the drilling speed and reduce the operation cost, is a very valuable matter, and has good economic and social benefits.
Description
Technical Field
The application relates to the field of drilling machinery, in particular to a clamp head swinging mechanism of an iron roughneck.
Background
At present, drilling is a necessary way for exploiting underground oil and gas resources to the ground, the application of drilling tools is becoming more and more popular, and iron drillers are drilling tools for automatically loading and unloading drilling tool threads, and because most of drilling machines matched with the iron drillers are higher in automation degree and need to be matched with top drives and the like for use, the situation that common drilling machine rat holes incline is not considered, the iron drillers are not ideal to apply to more drilling machines, and mainly show that the drilling tools are vertical up and down when in wellhead operation, and the iron drillers can smoothly operate; but a large number of single joints and swinging drilling tools are operated in the rat hole, and the drilling tools have an included angle of 5-7 degrees with the vertical line of the wellhead, namely, the drilling tools are inclined by 5-7 degrees relative to the wellhead position in the rat hole position, so that the clamp head swinging mechanism of the iron driller can solve the problem of iron driller angle rotation adjustment in drilling, can improve the drilling speed and reduce the operation cost, is a valuable matter, and has good economic and social benefits.
Disclosure of Invention
The application aims to provide a clamp head swinging mechanism of an iron driller, which is added with a clamp head swinging mechanism on the original iron driller, and a proximity switch for limiting and identifying position signals is added, so that automation of the operation of an iron driller wellhead and a rat hole is realized, and one or more of the problems in the prior art are solved.
According to one aspect of the application, a clamp head swinging mechanism of an iron roughneck is provided, which comprises a clamp head moving mechanism, a clamp head buckling device and a clamp head swinging mechanism, wherein the clamp head buckling device and the clamp head swinging mechanism are arranged on one side of the moving mechanism, the clamp head swinging mechanism is arranged between the moving mechanism and the clamp head buckling device, the clamp head moving mechanism is used for driving the clamp head buckling device to move, and the clamp head swinging mechanism drives the clamp head buckling device to rotate. Therefore, the clamp head swinging mechanism can drive the clamp head screwing device to rotate.
In some embodiments: the clamp head swinging mechanism comprises a connecting frame, a clamp body swinging bracket, a turntable bearing and a driving device, wherein the connecting frame is arranged on the inner ring of the turntable bearing, and the clamp body swinging bracket is arranged on the outer ring of the turntable bearing; the driving device drives the connecting frame and the clamp body swing bracket to rotate relatively. Therefore, the driving device drives the connecting frame and the clamp body swing bracket to rotate relatively, so that the clamp head screwing device is rotated.
In some embodiments: the driving device is an air cylinder or a hydraulic cylinder, the body of the driving device is hinged with the connecting frame, and the output end of the driving device is hinged with the clamp body swinging bracket. Therefore, the connecting frame and the clamp body swinging bracket perform relative rotation through the driving device.
In some embodiments: the pliers head swinging mechanism further comprises an adjusting rod, one end of the adjusting rod is hinged to the connecting frame, the other end of the adjusting rod is hinged to the pliers body swinging bracket, and the adjusting rod is used for adjusting the maximum rotation distance between the connecting frame and the pliers body swinging bracket. Therefore, the adjusting rod can adjust the maximum relative rotation distance between the connecting frame and the clamp body swinging bracket.
In some embodiments: the adjusting rod comprises a limiting rod, an adjusting sleeve and a locking nut, wherein the limiting rod comprises a first rod body and a second rod body, one end of the second rod body is hinged to the clamp body swinging support, a groove is formed in the other end of the second rod body, one end of the first rod body is movably inserted into the groove, the other end of the first rod body is hinged to the connecting frame, and the first rod body can reciprocate relative to the second rod body; the adjusting sleeve is sleeved on the first rod body and used for adjusting the maximum moving distance of the first rod body relative to the second rod body, and the locking nut is arranged on the first rod body and located below the adjusting sleeve and used for fixing the relative positions of the first rod body and the adjusting sleeve. Therefore, the adjusting sleeve can adjust the maximum moving distance of the first rod body relative to the second rod body.
In some embodiments: the adjusting sleeve comprises an adjusting nut, the adjusting nut is in threaded connection with the first rod body, and the end part of the second rod body is matched with the side face of the adjusting nut to limit. Thereby, the adjusting nut can limit the relative movement distance of the first rod body and the second rod body.
In some embodiments: the outer side edge of the adjusting nut is provided with a sleeve, the axis of the sleeve and the axis of the adjusting nut are positioned on the same straight line, and the sleeve is sleeved at one end of the second rod body, which is provided with the groove. Thereby, the sleeve further defines the relative movement position of the first rod body and the second rod body.
In some embodiments: the upper part of the connecting frame is provided with a first proximity switch and a second proximity switch, and the upper part of the clamp body swinging bracket is provided with a first induction screw pin matched with the first proximity switch and a second induction screw pin matched with the second proximity switch. Therefore, the wellhead or rat hole position of the iron roughneck can be identified through signals, and swing and automatic operation of the iron roughneck can be realized.
In summary, the application has the following beneficial effects:
according to the clamp head swinging mechanism of the iron driller, the clamp head swinging mechanism is added on the basis of the original iron driller, the proximity switch for limiting and identifying the position signals is added, automation of operation of a wellhead and a rat hole of the iron driller is achieved, the clamp head swinging mechanism adjusts angles of the drill tool relative to the wellhead according to the position of the rat hole, the problem of rotation of the angle of the iron driller in drilling is solved, drilling speed can be improved, operation cost is reduced, and the clamp head swinging mechanism is a valuable matter and has good economic and social benefits.
Drawings
FIG. 1 is a schematic view of a pliers head swing mechanism for an iron roughneck according to the present application;
FIG. 2 is a side view of a binding clip swing mechanism of an iron roughneck of the present application;
fig. 3 is a schematic view of an adjusting lever structure of a clamp head swing mechanism of an iron roughneck of the present application.
In the figure: 2. a clamp head swinging mechanism; 21. a connecting frame; 22. a clamp body swinging bracket; 23. a turntable bearing; 24. a driving device; 4. an adjusting rod; 41. a limit rod; 411. a first rod body; 412. a second rod body; 42. an adjusting sleeve; 43. a lock nut; 421. an adjusting nut; 422. a sleeve.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, a clamp head swinging mechanism of an iron roughneck comprises a clamp head moving mechanism, a clamp head buckling device and a clamp head swinging mechanism 2, wherein the clamp head buckling device and the clamp head swinging mechanism 2 are arranged on one side of the moving mechanism, the clamp head swinging mechanism 2 is arranged between the moving mechanism and the clamp head buckling device, and the clamp head moving mechanism is used for driving the clamp head buckling device to move, and the clamp head swinging mechanism 2 drives the clamp head buckling device to rotate. Therefore, the clamp head swinging mechanism 2 can drive the clamp head buckling device to rotate according to the angle of the drilling tool at the position of the rat hole relative to the position of the wellhead.
The clamp head swinging mechanism 2 comprises a connecting frame 21, a clamp body swinging bracket 22, a turntable bearing 23 and a driving device 24, wherein the connecting frame 21 is arranged on the inner ring of the turntable bearing 23, and the clamp body swinging bracket 22 is arranged on the outer ring of the turntable bearing 23; the driving device 24 drives the link 21 and the jaw swing bracket 22 to rotate relatively. Thus, the driving device 24 drives the connecting frame 21 and the clamp body swinging bracket 22 to rotate relatively, so that the clamp head screwing device rotates.
The driving device 24 is a cylinder or a hydraulic cylinder, and in this embodiment, the driving device 24 is a hydraulic cylinder, the upper end of the hydraulic cylinder is hinged with the ear plate of the connecting frame 21 through a hydraulic cylinder pin, and the lower end of the hydraulic cylinder is hinged with the ear plate of the clamp body swinging bracket 22 through a hydraulic cylinder pin. Meanwhile, a bidirectional hydraulic lock is connected to the oil pipeline of the hydraulic cylinder, and can lock any position of the hydraulic cylinder, so that the oil pressure of the hydraulic cylinder is stabilized, and the connecting frame 21 and the clamp body swing bracket 22 are kept relatively stable. Thus, the link 21 and the jaw swing bracket 22 perform a relative rotational movement by means of the hydraulic cylinder, and the rotation of the jaw swing bracket 22 performs a rotation of the jaw fastening device because the link 21 is fixed.
The adjusting rod 4 comprises a limiting rod 41, an adjusting sleeve 42 and a locking nut 43, the limiting rod 41 comprises a first rod body 411 and a second rod body 412, one end of the second rod body 412 is hinged to the pliers body swinging support 22, a groove is formed in the other end of the second rod body 412, one end of the first rod body 411 is movably inserted into the groove, the other end of the first rod body 411 is hinged to the connecting frame 21, and the first rod body 411 can reciprocate relative to the second rod body 412; the first rod 411 is sleeved with an adjusting sleeve 42, the adjusting sleeve 42 is used for adjusting the maximum moving distance of the first rod 411 relative to the second rod 412, and the locking nut 43 is arranged on the first rod 411 and located below the adjusting sleeve 42 and used for fixing the relative positions of the first rod 411 and the adjusting sleeve 42. Thereby, the adjusting lever 4 can adjust the maximum rotation distance of the link 21 and the jaw swing bracket 22.
Wherein, adjust pole 4 includes gag lever post 41, adjusting collar 42, lock nut 43, and gag lever post 41 includes first body of rod 411 and second body of rod 412, is equipped with the recess on the second body of rod 412, and the one end of first body of rod 411 is located the recess, and the cover is equipped with adjusting collar 42 on the first body of rod 411, and adjusting collar 42 is used for adjusting the biggest travel distance of first body of rod 411 and second body of rod 412, and lock nut 43 locates on gag lever post 41, and is located the below of adjusting collar 42 for fixed gag lever post 41 and the relative position of adjusting collar 42. Therefore, the maximum moving distance of the first rod body relative to the second rod body is adjusted by the adjusting sleeve, so that the aim of adjusting the maximum rotating distance of the connecting frame 21 and the clamp body swinging bracket 22 is fulfilled.
The adjusting sleeve 42 includes an adjusting nut 421, the adjusting nut 421 is in threaded connection with the first rod 411, and an end of the second rod 412 is limited by matching with a side surface of the adjusting nut 421. Thereby, the adjustment nut 421 can define the relative movement distance of the first rod 411 and the second rod 412.
Wherein, the outer edge of the adjusting nut 421 is provided with a sleeve 422, the axis of the sleeve 422 and the axis of the adjusting nut 421 are located in the same line, and the sleeve 422 is sleeved at one end of the second rod 412 provided with a groove. Thereby, the sleeve further defines the position of the relative movement of the first rod 411 and the second rod 412.
Wherein, a first proximity switch and a second proximity switch are arranged above the connecting frame 21, a first induction screw pin matched with the first proximity switch and a second induction screw pin matched with the second proximity switch are arranged above the clamp body swinging bracket 22. The first proximity switch corresponds to the first induction screw pin and is at a wellhead position, and the position of the first proximity switch is fixed; the second proximity switch corresponds to the second induction screw pin in a rat hole position, and the second induction screw pin can be adjusted through the actual position of the inclination angle, so that the wellhead or the rat hole position of an iron roughneck can be identified through signals, and swing and automatic operation of the iron roughneck can be realized.
Working principle: the clamp head moving mechanism drives the clamp head buckling device to move, but when the position of the rat hole of the drilling tool is inclined 5-7 degrees relative to the position of the wellhead, the clamp head swinging mechanism 2 is required to drive the clamp head buckling device to rotate, in the embodiment, when the inclination angle is assumed to be 6 degrees, the locking nut 43 is firstly loosened, the adjusting nut 421 is rotated, the relative movement distance between the first rod body 411 and the second rod body 412 is increased or reduced, the swinging angle of the clamp head is changed, and the locking nut 43 is locked after the adjustment is completed; the relative rotation of the connecting frame 21 and the clamp body swinging support 22 is realized through the extension and contraction of the driving device 24, so that the connecting frame 21 and the clamp body swinging support 22 can reach the maximum rotation distance, and the inclination angle of the drilling tool at the rat hole position relative to the wellhead position is 6 degrees.
The foregoing is merely one embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that several similar modifications and improvements can be made without departing from the inventive concept, and these should also be considered as being within the scope of the present application.
Claims (3)
1. The utility model provides a binding clip swing mechanism of iron roughneck which characterized in that: the clamp head moving mechanism is used for driving the clamp head buckling device to move, and the clamp head swinging mechanism (2) drives the clamp head buckling device to rotate;
the clamp head swinging mechanism (2) further comprises an adjusting rod (4), one end of the adjusting rod (4) is hinged with the connecting frame (21), the other end of the adjusting rod (4) is hinged with the clamp body swinging bracket (22), and the adjusting rod is used for adjusting the maximum relative rotation distance between the connecting frame (21) and the clamp body swinging bracket (22);
the adjusting rod (4) comprises a limiting rod (41), an adjusting sleeve (42) and a locking nut (43), the limiting rod (41) comprises a first rod body (411) and a second rod body (412), one end of the second rod body (412) is hinged to the clamp body swinging bracket (22), a groove is formed in the other end of the second rod body (412), one end of the first rod body (411) is movably inserted into the groove, the other end of the first rod body (411) is hinged to the connecting frame (21), and the first rod body (411) can reciprocate relative to the second rod body (412); the first rod body (411) is sleeved with the adjusting sleeve (42), the adjusting sleeve (42) is used for adjusting the maximum moving distance of the first rod body (411) relative to the second rod body (412), and the locking nut (43) is arranged on the first rod body (411) and positioned below the adjusting sleeve (42) and used for fixing the relative positions of the first rod body (411) and the adjusting sleeve (42);
the adjusting sleeve (42) comprises an adjusting nut (421), the adjusting nut (421) is in threaded connection with the first rod body (411), and the end part of the second rod body (412) is matched with the side surface of the adjusting nut (421) to limit;
the outer side edge of the adjusting nut (421) is provided with a sleeve (422), the axis of the sleeve (422) and the axis of the adjusting nut (421) are positioned on the same straight line, and the sleeve (422) is sleeved at one end, provided with the groove, of the second rod body (412).
2. The iron roughneck's binding clip swing mechanism of claim 1, wherein: the clamp head swinging mechanism (2) comprises a connecting frame (21), a clamp body swinging bracket (22), a turntable bearing (23) and a driving device (24), wherein the connecting frame (21) is arranged on the inner ring of the turntable bearing (23), and the clamp body swinging bracket (22) is arranged on the outer ring of the turntable bearing (23); the driving device (24) drives the connecting frame (21) and the clamp body swinging bracket (22) to rotate relatively.
3. The iron roughneck's binding clip swing mechanism of claim 2, wherein: the driving device (24) is an air cylinder or a hydraulic cylinder, the body of the driving device (24) is hinged with the connecting frame (21), and the output end of the driving device (24) is hinged with the clamp body swinging bracket (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836652.7A CN108756785B (en) | 2018-07-26 | 2018-07-26 | Pliers head swing mechanism for iron roughneck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836652.7A CN108756785B (en) | 2018-07-26 | 2018-07-26 | Pliers head swing mechanism for iron roughneck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108756785A CN108756785A (en) | 2018-11-06 |
| CN108756785B true CN108756785B (en) | 2023-10-10 |
Family
ID=63971435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810836652.7A Active CN108756785B (en) | 2018-07-26 | 2018-07-26 | Pliers head swing mechanism for iron roughneck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108756785B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372449B (en) * | 2018-12-27 | 2023-12-26 | 江苏如石机械股份有限公司 | Transfer device of power tongs |
| CN112610171B (en) * | 2020-12-24 | 2022-06-21 | 四川宏华石油设备有限公司 | Iron roughneck clamp assembly |
| CN115492539B (en) * | 2022-11-16 | 2023-08-04 | 江苏如石机械股份有限公司 | Simple type back-up wrench for well repairing top drive |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080986A2 (en) * | 2002-03-20 | 2003-10-02 | Rogers Tommie L | Boom type power tong positioner |
| CN2854057Y (en) * | 2005-12-30 | 2007-01-03 | 南阳二机石油装备(集团)有限公司 | Portable multifunction dynamic pliers |
| CN101397892A (en) * | 2008-11-11 | 2009-04-01 | 四川劳玛斯特高胜石油钻采设备有限公司 | Iron driller |
| CN201306139Y (en) * | 2008-11-11 | 2009-09-09 | 四川劳玛斯特高胜石油钻采设备有限公司 | Binding clip swing mechanism of iron roughneck |
| CN202012308U (en) * | 2011-04-20 | 2011-10-19 | 沈阳新松机器人自动化股份有限公司 | Full-automatic iron roughneck |
| CN103498640A (en) * | 2013-10-21 | 2014-01-08 | 中国石油化工股份有限公司 | Iron roughneck jaw self-balancing deflection mechanism |
| CN105178892A (en) * | 2015-07-08 | 2015-12-23 | 宝鸡石油机械有限责任公司 | Space angle adjusting mechanism for iron roughneck jaws |
| CN205012970U (en) * | 2015-08-17 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Anvil worker binding clip levelling mechanism |
| CN107830959A (en) * | 2017-10-31 | 2018-03-23 | 江苏如石机械股份有限公司 | A kind of measuring method of iron driller impact tong and drill-rod clamping contact stress |
| CN208686335U (en) * | 2018-07-26 | 2019-04-02 | 江苏如石机械股份有限公司 | A kind of binding clip swing mechanism of iron driller |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003253616A1 (en) * | 2002-05-30 | 2003-12-19 | Gray Eot, Inc. | Drill pipe connecting and disconnecting apparatus |
| US7178612B2 (en) * | 2003-08-29 | 2007-02-20 | National Oilwell, L.P. | Automated arm for positioning of drilling tools such as an iron roughneck |
-
2018
- 2018-07-26 CN CN201810836652.7A patent/CN108756785B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080986A2 (en) * | 2002-03-20 | 2003-10-02 | Rogers Tommie L | Boom type power tong positioner |
| CN2854057Y (en) * | 2005-12-30 | 2007-01-03 | 南阳二机石油装备(集团)有限公司 | Portable multifunction dynamic pliers |
| CN101397892A (en) * | 2008-11-11 | 2009-04-01 | 四川劳玛斯特高胜石油钻采设备有限公司 | Iron driller |
| CN201306139Y (en) * | 2008-11-11 | 2009-09-09 | 四川劳玛斯特高胜石油钻采设备有限公司 | Binding clip swing mechanism of iron roughneck |
| CN202012308U (en) * | 2011-04-20 | 2011-10-19 | 沈阳新松机器人自动化股份有限公司 | Full-automatic iron roughneck |
| CN103498640A (en) * | 2013-10-21 | 2014-01-08 | 中国石油化工股份有限公司 | Iron roughneck jaw self-balancing deflection mechanism |
| CN105178892A (en) * | 2015-07-08 | 2015-12-23 | 宝鸡石油机械有限责任公司 | Space angle adjusting mechanism for iron roughneck jaws |
| CN205012970U (en) * | 2015-08-17 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Anvil worker binding clip levelling mechanism |
| CN107830959A (en) * | 2017-10-31 | 2018-03-23 | 江苏如石机械股份有限公司 | A kind of measuring method of iron driller impact tong and drill-rod clamping contact stress |
| CN208686335U (en) * | 2018-07-26 | 2019-04-02 | 江苏如石机械股份有限公司 | A kind of binding clip swing mechanism of iron driller |
Non-Patent Citations (1)
| Title |
|---|
| 铁钻工夹紧缸同步技术与钻具自动找心方法的研究;刘伟;中国优秀硕士学位论文全文数据库工程科技Ⅰ辑(2);9-27 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108756785A (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108756785B (en) | Pliers head swing mechanism for iron roughneck | |
| NO20010810D0 (en) | Drilling device and method for extending a bore | |
| US20190017336A1 (en) | Vertically Adjustable Breakout Wrench | |
| CN203742489U (en) | Drill rig pipe column conveying manipulator | |
| CN204585362U (en) | A kind of beads diplopore boring device | |
| CN118208146B (en) | Bevel connection drilling machine for mine | |
| CN103801730B (en) | For the conveying pressing mechanism of bearing ring rig | |
| US20110247880A1 (en) | Alignment assembly, drilling systems and methods | |
| CN207681944U (en) | A kind of bench drill of adjustable angle | |
| CN108015314A (en) | A kind of oil pipe drilling machine | |
| CN208686335U (en) | A kind of binding clip swing mechanism of iron driller | |
| CN205445513U (en) | Center positioner | |
| CN206737819U (en) | Rock drill forward beam is swung and rotating device | |
| CN204283265U (en) | Roller devices, impact tong and iron driller | |
| CN104847285A (en) | Automatic rod feeding device for all-hydraulic drills | |
| CN205117249U (en) | Be applied to engineering driller's set ware of holding up | |
| CN203476587U (en) | Guide vane limiting device | |
| CN203603901U (en) | Propelling device of rock drill | |
| CN209050150U (en) | A kind of cylinder head cover drilling machine of rotatable positioning | |
| CN209111241U (en) | A kind of angle automatic regulation mechanism of lattice shoulder female tenon and square hole | |
| CN208584671U (en) | A kind of ceramic tile hole making drill | |
| CN112814586A (en) | Anchor rod clamping device and drilling equipment | |
| CN206190210U (en) | Angle shift mechanism of rig | |
| CN205778554U (en) | A kind of broken rock drill bit applied on hydraulic multi-function pile-grafting machine | |
| CN204778558U (en) | Overhead traveling crane structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |