CN105386718A - All-hydraulic drill power head with double shafts - Google Patents
All-hydraulic drill power head with double shafts Download PDFInfo
- Publication number
- CN105386718A CN105386718A CN201510910365.2A CN201510910365A CN105386718A CN 105386718 A CN105386718 A CN 105386718A CN 201510910365 A CN201510910365 A CN 201510910365A CN 105386718 A CN105386718 A CN 105386718A
- Authority
- CN
- China
- Prior art keywords
- chuck
- slips
- hydraulic
- driving shaft
- shaft
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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
- 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
- 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 invention discloses an all-hydraulic drill power head with double shafts, comprising a hydraulic motor, a gearbox and a chuck, wherein a hollow spindle is rotatably arranged in the gearbox, a driving shaft which coaxially rotates with the spindle and is axially fixed relative to the spindle is arranged in the inner hole of the spindle, and a mounting part used for being connected with a drilling tool is arranged at the front end of the driving shaft. By using the power head, use of a drilling machine chuck in the drilling working condition with impulsive load can be avoided, and the problem of easy damage of key parts in the chuck is solved.
Description
Technical field
The present invention relates to a kind of novel all hydraulic drive rig power head with twin shaft.
Background technology
The unit head of rig plays to provide and reverses power and moment of torsion is passed to drilling tool, and makes drilling tool do feed motion with first the plaing a part of power.Unit head and the connection of drilling tool mainly contain screw thread directly and hollow axis chuck be connected two kinds of modes.Wherein, unit head and drilling tool adopt the mode moment reliable transmission be threaded, and transmitting torque is only relevant with the intensity of drilling rod with the performance of unit head, and connection is reliable, but cannot automatic dismantling drilling rod in trip-out process.And the form of axis chuck mainly contains the normally closed type chuck of disk spring reinforcement and two kinds, the rubber-sleeve type chuck open in usual of hydraulic direct-acting at present.
Creeping into and rising in the process of pulling out, the slips on described two kinds of chucks will be combined closely with drilling tool always, and the vibrations of active rigs exacerbate the wearing and tearing of the slips contacted with drilling tool, and slips and drilling tool skid and easily damage drilling tool external surface.
In addition, because rig transmitting torque is large, compact conformation, in order to ensure that chuck has enough clamping forces to drilling tool, the normally closed chuck of disk spring type many employings overstressing disk spring provides chucking power, but disk spring design service life is restricted.And be subject to the restriction of the gum cover material property in rubber sleeve chuck, need special tool when gum cover easily damages and changes, operation inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of all hydraulic drive rig power head with twin shaft, in drilling process, do not use chuck to drive drilling tool, hold flimsy problem to solve vital part slips or gum cover in chuck.
The all hydraulic drive rig power head with dual dynamic transfer mode of the present invention, comprise hydraulic motor, gearbox and chuck, the main shaft of rotating hollow is provided with in described gearbox, the power transmission provided by hydraulic motor by described gearbox is on described main shaft, be provided with in described inner hole of spindle with main shaft coaxial rotation and axial relatively-stationary driving shaft, the front end of this driving shaft has the installation portion for being connected with drilling tool.
Described chuck adopts and often opens hydraulic booster formula chuck or often open hydraulic rubber sleeve formula chuck, wherein, described hydraulic booster formula chuck of often opening comprises the piston be located in chuck housing, slips and slip sleeve, described slips is arranged in the draw-in groove of front-end of spindle, described slip sleeve inner circumferential is coordinated by contact of incline plane with described slips periphery, by making described piston move to servicing fluids force feed in the pressure chamber formed between described piston and chuck housing, move axially forward or backward to promote described slip sleeve, described slips radial direction is made to tighten up or open, drilling tool can be made when described slips is opened therefrom freely to pass through.
Described hydraulic rubber sleeve formula chuck of often opening comprises the gum cover being located at slips in chuck housing and being set on slips, by injection pressure oil in the pressure chamber formed between gum cover and chuck housing, extrudes described gum cover and makes it be out of shape to drive described slips radial direction to tighten up.
Preferably, described driving shaft front end installation portion is connecting thread.
Preferably, dismountablely between described main shaft tail and driving shaft be provided with fastener, this fastener will form the fixing of axial and circumferential between main shaft and driving shaft.
Preferably, described main shaft is connected by six square shaft holes with between driving shaft or key is connected and realizes moment of torsion transmission.
Preferably, described driving tongue is provided with rotation water-flowing device, and this rotation water-flowing device can provide cooling fluid and dreg discharging liquid to drilling tool.
Unit head of the present invention, can avoid chuck of rig to use under the drilling condition with shock loading, improve the application life of each parts of chuck, save cost of production, decrease the plant maintenance time, ensure that operating efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is the structural representation of embodiment two.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated, and following examples only for explaining the present invention, do not form limiting the scope of the present invention.
Embodiment one:
Drill power head as shown in Figure 1, comprises hydraulic motor 1, gearbox 2 and is fixed on hydraulic booster formula of often the opening chuck 5 on front side of gearbox.
In described gearbox, be provided with the main shaft 3 of rotating hollow, the power transmission provided by hydraulic motor 1 by described gearbox 2 is on described main shaft 3.
Driving shaft 4 is provided with in described main shaft 3 endoporus, fixed by fastener 402 between described main shaft tail and driving shaft, realize the fixing of axial and circumferential between main shaft and driving shaft, realize diaxon coaxial rotation, main-shaft torque is passed on driving shaft, and makes driving shaft obtain propelling and work axial power required when pulling out.
Connected mode between described main shaft and driving shaft is not limited only to structure described in the present embodiment, inside and outside six square shaft holes also can be adopted to be connected structure, be certainly also connected with forms such as flat keys by spline.
The front end of described driving shaft 4 has the external screw thread installation portion 401 for being connected with drilling tool 7.When creeping into, described driving shaft realizes the transmission of moment of torsion forward by being connected with drilling tool thread.
Described driving shaft 4 afterbody is provided with the rotation water-flowing device 8 that can provide cooling fluid and dreg discharging liquid to drilling tool 7.
The present embodiment adopts and often opens hydraulic booster formula chuck 5, and it comprises the piston 502 be located in chuck housing 501, slips 504 and slip sleeve 503.Be positioned at driving shaft external screw thread installation portion front in the draw-in groove that described slips 504 is arranged in front-end of spindle.Described slip sleeve 503 inner circumferential is coordinated by contact of incline plane with described slips 504 periphery, by making described piston move to servicing fluids force feed in the pressure chamber formed between described piston 502 and chuck housing, move axially to promote described slip sleeve, when slip sleeve moves axially forward, force described slips 504 radial direction to be tightened up and drilling tool is clamped; When slip sleeve moves axially backward, described slips is opened, release clamping force, can make drilling tool therefrom freely pass through, rotate.
Described in the present embodiment, unit head is when creeping into, be threaded with drilling tool 7 by the external screw thread installation portion of driving shaft front end, the power of hydraulic motor transmits on main shaft 3 after gearbox slows down, described driving shaft 4 synchronous axial system is driven by fastener, thus drive described drilling tool 7 to rotate, make driving shaft obtain propelling and rise simultaneously and pull out required axial power.
When the work of creeping into completes, fastener 402 can be pulled down as required, this driving shaft is taken out from main shaft or retains, by injection liquid force feed, slip sleeve is moved forward, drilling tool is clamped by slips, thus drive drilling tool is done feeding, risen and pull out or counter rotational movement, and hydraulic control slip sleeve move backward, thus slips and drilling tool are thrown off, complete trip-out operation.
Embodiment two:
See Fig. 2, the present embodiment adopts and often opens hydraulic rubber sleeve formula chuck 6, and its form of structure is substantially identical with existing gum cover chuck open in usual, and it comprises the slips 601 be located in chuck housing 603 and the gum cover 602 be set on slips.Described main shaft 3 is provided with the pressure oil oil duct 301 be communicated with chuck.All the other technical characteristics of unit head described in the present embodiment are identical with embodiment 1, do not repeat them here.
In like manner, described in the present embodiment, unit head is when creeping into, identical with embodiment one, is also to be connected with drilling tool thread by the external screw thread installation portion of driving shaft front end, rotates forward and move axially to drive drilling tool.
After the work of creeping into completes, driving shaft can be taken off or retain as required, drilling tool 7 arrives the operating position of slips, the pressure oil oil duct of pressure oil on main shaft imports chuck and enters the pressure chamber formed between gum cover and chuck housing, extrude described gum cover make its be out of shape drive described slips radial direction tighten up by drilling tool clamp, thus drive drilling tool do feeding, rise pull out or counter rotational movement.
Visible by above-mentioned two embodiments, unit head of the present invention, in borer drilling procedure, uses driving shaft directly to drive drilling tool to rotate, can not use chuck.Only pull out and reverse in dismounting drilling tool process rising, slips in chuck just contacts with drilling tool, and rig rise pull out in process run be more stable, therefore avoid chuck to use under the drilling condition with shock loading, improve the application life of each critical component in chuck, decrease the replacing amount of accessory, saved cost of production, effectively reduce the plant maintenance time, improve operating efficiency.
Claims (5)
1. there is an all hydraulic drive rig power head for twin shaft, comprise hydraulic motor, gearbox and chuck, in described gearbox, be provided with the main shaft of rotating hollow, power transmission hydraulic motor provided by described gearbox on described main shaft,
It is characterized in that: be provided with in described inner hole of spindle with main shaft coaxial rotation and axial relatively-stationary driving shaft, the front end of this driving shaft has the installation portion for being connected with drilling tool,
Described chuck adopts and often opens hydraulic booster formula chuck or often open hydraulic rubber sleeve formula chuck,
Wherein, described hydraulic booster formula chuck of often opening comprises the piston, slips and the slip sleeve that are located in chuck housing, described slips is arranged in the draw-in groove of front-end of spindle, described slip sleeve inner circumferential is coordinated by contact of incline plane with described slips periphery, by making described piston move to servicing fluids force feed in the pressure chamber formed between described piston and chuck housing, move axially forward or backward to promote described slip sleeve, make described slips radial direction tighten up or open, drilling tool when described slips is opened, can be made therefrom freely to pass through;
Described hydraulic rubber sleeve formula chuck of often opening comprises the gum cover being located at slips in chuck housing and being set on slips, by injection pressure oil in the pressure chamber formed between gum cover and chuck housing, extrudes described gum cover and makes it be out of shape to drive described slips radial direction to tighten up.
2. all hydraulic drive rig power head with twin shaft according to claim 1, is characterized in that: described driving shaft front end installation portion is connecting thread.
3. all hydraulic drive rig power head with twin shaft according to claim 1 and 2, is characterized in that: dismountablely between described main shaft tail and driving shaft be provided with fastener, and this fastener will form the fixing of axial and circumferential between main shaft and driving shaft.
4. all hydraulic drive rig power head with twin shaft according to claim 1 and 2, is characterized in that: described main shaft is connected by six square shaft holes with between driving shaft or key is connected and realizes moment of torsion transmission.
5. all hydraulic drive rig power head with twin shaft according to claim 1 and 2, is characterized in that: described driving tongue is provided with rotation water-flowing device, this rotation water-flowing device can provide cooling fluid and dreg discharging liquid to drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910365.2A CN105386718A (en) | 2015-12-10 | 2015-12-10 | All-hydraulic drill power head with double shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910365.2A CN105386718A (en) | 2015-12-10 | 2015-12-10 | All-hydraulic drill power head with double shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105386718A true CN105386718A (en) | 2016-03-09 |
Family
ID=55419421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510910365.2A Pending CN105386718A (en) | 2015-12-10 | 2015-12-10 | All-hydraulic drill power head with double shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105386718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937366A (en) * | 2016-07-06 | 2016-09-14 | 福建省正丰信息技术发展有限公司 | Electric drive drilling rig power head |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711310A (en) * | 1985-01-04 | 1987-12-08 | Luen Lam M | Rotary head |
| CN200952364Y (en) * | 2006-09-29 | 2007-09-26 | 重庆科技学院 | Whole hydraulic spider for gas drainage drilling machine |
| CN201047255Y (en) * | 2007-04-24 | 2008-04-16 | 保定保路通工程有限公司 | Power head output shaft device of horizontal directional drilling rig |
| CN101187290A (en) * | 2007-12-22 | 2008-05-28 | 连云港黄海机械厂有限公司 | Non-dredging guiding driller dynamic head main spindle |
| CN101538989A (en) * | 2009-04-10 | 2009-09-23 | 煤炭科学研究总院西安研究院 | Quick-change slips hydraulic rubber cylinder chuck |
| CN101705785A (en) * | 2009-10-30 | 2010-05-12 | 煤炭科学研究总院重庆研究院 | Mining linkage all-hydraulic drilling machine |
| CN202249836U (en) * | 2011-09-30 | 2012-05-30 | 三一重型装备有限公司 | Underground drill rig power head and chuck device thereof |
| CN205189749U (en) * | 2015-12-10 | 2016-04-27 | 重庆铁木科技发展有限公司 | All -hydraulic drill unit head with biax |
-
2015
- 2015-12-10 CN CN201510910365.2A patent/CN105386718A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711310A (en) * | 1985-01-04 | 1987-12-08 | Luen Lam M | Rotary head |
| CN200952364Y (en) * | 2006-09-29 | 2007-09-26 | 重庆科技学院 | Whole hydraulic spider for gas drainage drilling machine |
| CN201047255Y (en) * | 2007-04-24 | 2008-04-16 | 保定保路通工程有限公司 | Power head output shaft device of horizontal directional drilling rig |
| CN101187290A (en) * | 2007-12-22 | 2008-05-28 | 连云港黄海机械厂有限公司 | Non-dredging guiding driller dynamic head main spindle |
| CN101538989A (en) * | 2009-04-10 | 2009-09-23 | 煤炭科学研究总院西安研究院 | Quick-change slips hydraulic rubber cylinder chuck |
| CN101705785A (en) * | 2009-10-30 | 2010-05-12 | 煤炭科学研究总院重庆研究院 | Mining linkage all-hydraulic drilling machine |
| CN202249836U (en) * | 2011-09-30 | 2012-05-30 | 三一重型装备有限公司 | Underground drill rig power head and chuck device thereof |
| CN205189749U (en) * | 2015-12-10 | 2016-04-27 | 重庆铁木科技发展有限公司 | All -hydraulic drill unit head with biax |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937366A (en) * | 2016-07-06 | 2016-09-14 | 福建省正丰信息技术发展有限公司 | Electric drive drilling rig power head |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20160309 |