CN106337657B - A kind of deformable rotary drilling-head - Google Patents
A kind of deformable rotary drilling-head Download PDFInfo
- Publication number
- CN106337657B CN106337657B CN201611044591.8A CN201611044591A CN106337657B CN 106337657 B CN106337657 B CN 106337657B CN 201611044591 A CN201611044591 A CN 201611044591A CN 106337657 B CN106337657 B CN 106337657B
- Authority
- CN
- China
- Prior art keywords
- fanning strip
- auger spindle
- umbrella frame
- drill body
- pole
- 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.)
- Expired - Fee Related
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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 a kind of deformable rotary drilling-head, it is characterized in that：Rotary drilling-head includes drill body, auger spindle and supporting rack；Drill body is the bullet formed of being filled the span of a man's arms by the multi-disc fanning strip being separately set, and cutting mouth is formed in fanning strip side；Supporting rack is arranged to the structure type of umbrella frame, and each fanning strip is arranged on umbrella frame, using the obvolvent degree of the opening and closing adjustment fanning strip of umbrella frame, realizes the adjustment of drill body diameter；Auger spindle is transmission shaft, and using auger spindle as the center-pole of umbrella frame, bit is driven using auger spindle.The size for the angulation change bit diameter that the present invention is opened by changing fanning strip, adapts to different apertures, can realize the recycling of drill bit, can play the effect of drill bit and reamer simultaneously, wet brill method can be used, simple in structure, easy to implement.
Description
Technical field
It is more specifically a kind of to apply the Drilling bore bit in underground engineering the present invention relates to drill bit.
Background technology
Drill bit is mounted in the drilling equipment component of drilling rod leading portion.In trenchless technology, some underground pipeline layouts bore
The underground engineerings such as hole slip casting and strengthening of foundation, the drilling rod after drilling shaping is to bury to stay in underground as supporting construction, and drill bit exists
It needs to retract after pore-forming to be recycled.Drilling equipment of the prior art, bit diameter immobilize, often with drill pipe diameter
Equal or even slightly larger than drill pipe diameter, in the case where not receiving drilling rod, drill bit can not recycle, and drill bit is relatively valuable in drilling machine
Component, this obviously causes to waste.
The content of the invention
The present invention is to avoid the deficiency present in the above-mentioned prior art, provides a kind of deformable rotary drilling-head, passes through
Change the size of drill bit itself outer diameter so that drill bit can be retracted after reduced outside diameter through the hollow cavity of drilling rod, realize drill bit
Recycling.
The present invention adopts the following technical scheme that solve technical problem：
Deformable rotary drilling-head of the invention is structurally characterized in that：The rotary drilling-head includes drill body, auger spindle and branch
Support；
The drill body is the bullet formed of being filled the span of a man's arms by the multi-disc fanning strip being separately set, in the fanning strip side
It is formed with cutting mouth；
Support frame as described above is arranged to the structure type of umbrella frame, and each fanning strip is arranged on umbrella frame, utilizes umbrella frame
Opening and closing adjust the obvolvent degree of fanning strip, realize the adjustment of drill body diameter；
The auger spindle is transmission shaft, and using auger spindle as the center-pole of umbrella frame, bit is driven using auger spindle.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：The umbrella frame is fixed on the top of center-pole
Top retainer plate is set, bottom collar is set at the top of the body of rod sliding sleeve of center-pole, in the top retainer plate and bottom collar
Between linkage is set；Fanning strip in the drill body is mounted on the linkage, by adjusting bottom collar
Axial position on center-pole changes the taper of the bullet of drill body, so as to change the diameter of drill body.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：Setting is axially fixed on the body of rod sliding sleeve
There is rack, and there is wheel and rack to be meshed；The motor rotated for drive gear is set, is turned using motor-driven gear
It moves and passes through the axial movement of rack drives body of rod sliding sleeve and bottom collar on center-pole.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：The cutting mouth is set in the side of fanning strip
Insert groove installs replaceable blade in the insert groove.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：For the two sides of fanning strip, drill bit is faced up
To face upward side, opposite side is back side for the one side of body direction of rotation, and blade is mounted on side of facing upward, and each fanning strip is from back side side court
It is involute to the outer contour for side of facing upward so that the blade mounted on side of facing upward protrudes from the back of the body of another fanning strip on the radial
Surface side.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：The taper formed of being filled the span of a man's arms by multi-disc fanning strip
Body maintains gap between adjacent fanning strip, as chip removal gap；Arc point of a knife is made in each fanning strip of cone head part,
Top chip-removal hole has been collectively formed with the arc point of a knife of each fanning strip.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：On the center-pole, axially spaced setting
Each spring latch lock sets arc groove on the correspondence position of the bottom collar, by the spring latch lock and arc groove structure
Into position limiting structure；The position of each spring latch lock and the opening and closing degree of umbrella frame correspond.
The design feature of the deformable rotary drilling-head of the present invention is lain also in：The auger spindle is hollow shaft, in the auger spindle
In the auger spindle port of front end, nozzle is threaded with, is respectively arranged with spray orifice in the front end face of nozzle and side, the spray orifice leads to
The hollow cavity for crossing auger spindle is connected with external water source, realizes water spray.
Compared with the prior art, the present invention has the beneficial effect that：
1st, drill body is arranged to the form filled the span of a man's arms by the present invention, carries out applying brill with the drill body of expansion, after folding
Drill body can smoothly recycle in drilling rod, realize the goal of the invention of drill bit recycling.
2nd, rotary drilling-head of the present invention in the construction process, because its drill bit can change itself size, and equipped with punching can be sprayed
Wash the nozzle of medium, fanning strip cuts and smashes the soil body around drill bit and gravel is easily crept into, the change of drill bit itself size
Change can be flexibly adapted to the aperture changed in work progress, and change work area and the space of drill bit, while play brill
The effect of head and reamer efficiently solves drill bit drilling and the routing problem of the variation in removal process, fast with safety
The features such as victory, economy, strong applicability.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is segmental structure schematic diagram in the present invention；
Fig. 3 is fanning strip unfolded state schematic diagram in the present invention；
Fig. 4 is support frame structure diagram in the present invention；
Fig. 5 is supporting rack unfolded state schematic diagram in the present invention；
Fig. 6 is the elastic collision bead structure diagram on auger spindle in the present invention；
Fig. 7 is nozzle structure schematic diagram in the present invention；
Fig. 8 is motor supporting structure schematic diagram in the present invention；
Figure label：1 blade, 2 fanning strips, 3 arc points of a knife, 4 insert grooves, 5 auger spindles, 6 racks, 7 gears, 8 motors, 9 bars
Body sliding sleeve, 10 linkages, 11a tops retainer plate, 11b bottom collars, 12 auger spindle ports, 13 nozzles, 14 collision beads, 15 spray orifices,
16 stents, 17 power supplys.
Specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the structure type of deformable rotary drilling-head is in the present embodiment：Rotation
Drill bit includes drill body, auger spindle 5 and supporting rack.
Drill body is the bullet formed of being filled the span of a man's arms by the multi-disc fanning strip 2 being separately set, and is formed in 2 side of fanning strip
Cut mouth；Supporting rack is arranged to the structure type of umbrella frame, and each fanning strip 2 is arranged on umbrella frame, utilizes the opening and closing of umbrella frame
The obvolvent degree of fanning strip 2 is adjusted, realizes the adjustment of drill body diameter；Auger spindle 5 is transmission shaft, is umbrella frame with auger spindle 5
Center-pole drives bit using auger spindle 5.
In specific implementation, corresponding structure setting also includes：
Such as Fig. 1, Fig. 4 and Fig. 5, umbrella frame is the retainer plate 11a at the top of the fixed setting of the top of center-pole, in center-pole
Bottom collar 11b at the top of body of rod sliding sleeve is set, linkage 10 is set between top retainer plate 11a and bottom collar 11b；It bores
Fanning strip 2 in head body is mounted on linkage 10, is come by adjusting axial positions of the bottom collar 11b on center-pole
Change the taper of the bullet of drill body, so as to change the diameter of drill body.Setting is axially fixed on body of rod sliding sleeve 9
There is rack 6, and there is gear 7 to be meshed with rack 6；The motor 8 rotated for drive gear 7 is set, is driven using motor 8
Gear 7, which rotates and passes through rack 6, drives the axial movement of body of rod sliding sleeve 9 and bottom collar 11b on center-pole.
As shown in figure 8, motor 8 is fixed at using stent 16 on auger spindle 5, for stent 16 is avoided to stop body of rod sliding sleeve
9 move up and down along auger spindle 5, are provided on body of rod sliding sleeve 9 with two axial gaps substantially symmetrical about its central axis.Power supply 17 is motor 8
Electric energy is provided, the two is fixed together, and it is 8 turn on automatically of motor or deenergization 17 to set inductive switch, and motor 8 is rotating
Motor allows rack 6 to be slided up and down with body of rod sliding sleeve 9 along auger spindle 5.
Cutting mouth is to set insert groove 4 in the side of fanning strip 2, and replaceable blade 1 is installed in insert groove 4；For
The two sides of fanning strip 2 face up the one side of drill body direction of rotation as side of facing upward, and opposite side is back side, and blade 1 is installed
In side of facing upward, outer contour of each fanning strip 2 from back side side towards side of facing upward is involute so that the blade mounted on side of facing upward
1 protrudes from the back side of another fanning strip on the radial.
As shown in Figures 2 and 3, filled the span of a man's arms in the present embodiment by multi-disc fanning strip 2 bullet formed, in adjacent fanning strip
Gap is maintained between 2, as chip removal gap；Arc point of a knife 3 is made in each fanning strip 2 of cone head part, with the arc of each fanning strip 2
Top chip-removal hole has been collectively formed in shape point of a knife 3.
As shown in figures 1 to 6, on center-pole, three spring latch locks 14 of axially spaced setting, in bottom collar 11b
Correspondence position on arc groove is set, position limiting structure is formed by spring latch lock 14 and arc groove；The position of each spring latch lock 14
It puts and is corresponded with the opening and closing degree of umbrella frame；Three spring latch locks 14 are recessed with the arc on bottom collar 11b correspondingly
Cooperation /V between slot enables fanning strip 2 to be limited in three different opening and closing degree, corresponding to apart from top retainer plate
The spring latch lock of 11a proximal most positions, the stretching degree of fanning strip 2 is maximum, i.e., bit diameter is maximum；Consolidate corresponding to apart from top
Surely the spring latch lock of 11a highest distance positions is enclosed, the stretching degree of fanning strip 2 is minimum, i.e., bit diameter is minimum.
As shown in figure 5, auger spindle 5 is hollow shaft, in the auger spindle port 12 of the front end of auger spindle 5, nozzle 13 is threaded with,
Spray orifice 15 is respectively arranged in the front end face of nozzle 13 and side, spray orifice 15 is connected by the hollow cavity of auger spindle 5 with external water source
It is logical, realize water spray；This form makes drill bit can be used for realizing wet brill method, due in drilling process, drill bit and rock, concrete
Etc. hard objects friction can generate high temperature, so as to reduce the performance of drill bit, this situation can be improved using wet brill method, extend drill bit
Service life.
The deformable rotary drilling-head of the present invention is worked using wet brill method, and drill bit, mud motor, probe chamber and drilling rod connect successively
It connects, drills for underground deflecting.The auger spindle 5 of drill bit is connected by universal shaft with mud motor, and mud motor carries for bit
For power.In work progress, it is desirable that minimum diameter when drill pipe diameter closes up more than drill bit.During drill bit is crept into, mud
Slurry motor, probe chamber and drilling rod do not rotate, the rotor rotation only inside drill bit and mud motor.Probe chamber, which rises to be oriented to, to be made
With.
In the end of probe chamber an electric wire is set to be passed through from drilling rod inner cavity, after drill bit completes drilling, the driving of motor 8 makes brill
The fanning strip 2 of head, which closes up, makes bit diameter become minimum, then draw the electric wire on ground by drill bit, mud motor and probe chamber together
By towing back to ground inside from drilling rod, drill bit recycling is completed.Electric wire is not only to provide the conducting wire of electric power for bit operation or return
The rope of drill bit is dragged, therefore it is required that electric wire pull resistance is high, durable.
Claims (3)
1. a kind of deformable rotary drilling-head, it is characterized in that：The rotary drilling-head includes drill body, auger spindle (5) and supporting rack；
The drill body is the bullet formed of being filled the span of a man's arms by the multi-disc fanning strip (2) being separately set, in the fanning strip (2) side shape
Into there is cutting mouth；Support frame as described above is arranged to the structure type of umbrella frame, and each fanning strip (2) is arranged on umbrella frame, utilizes umbrella
The obvolvent degree of the opening and closing adjustment fanning strip (2) of skeleton, realizes the adjustment of drill body diameter；The auger spindle (5) is transmission shaft,
With the center-pole that auger spindle (5) is umbrella frame, bit is driven using auger spindle (5)；
The cutting mouth is to set insert groove (4) in the side of fanning strip (2), and installation is replaceable in the insert groove (4)
Blade (1)；For the two sides of fanning strip (2), the one side of drill body direction of rotation is faced up as side of facing upward, opposite side is the back of the body
Surface side, blade (1) are mounted on side of facing upward, and outer contour of each fanning strip (2) from back side side towards side of facing upward is involute so that
Blade (1) mounted on side of facing upward protrudes from the back side of another fanning strip on the radial；
The bullet formed of being filled the span of a man's arms by multi-disc fanning strip (2), gap is maintained between adjacent fanning strip (2), as
Chip removal gap；Arc point of a knife (3) is made in each fanning strip (2) of cone head part, it is common with the arc point of a knife (3) of each fanning strip (2)
It is formed with top chip-removal hole；
It is axially spaced that each spring latch lock (14) is set on the center-pole, in the correspondence position of the bottom collar (11b)
Upper setting arc groove forms position limiting structure by the spring latch lock (14) and arc groove；The position of each spring latch lock (14)
It is corresponded with the opening and closing degree of umbrella frame；
The auger spindle (5) is hollow shaft, in the auger spindle port (12) of the front end of the auger spindle (5), is threaded with nozzle
(13), spray orifice (15) is respectively arranged in the front end face of nozzle (13) and side, the spray orifice (15) passes through the hollow of auger spindle (5)
Chamber is connected with external water source, realizes water spray.
2. deformable rotary drilling-head according to claim 1, it is characterized in that：The umbrella frame is on the top of center-pole
Fixed setting top retainer plate (11a) sets bottom collar (11b) at the top of the body of rod sliding sleeve of center-pole, consolidates at the top
Linkage (10) is set between fixed circle (11a) and bottom collar (11b)；Fanning strip (2) in the drill body is mounted on
On the linkage (10), change drill body by adjusting axial position of the bottom collar (11b) on center-pole
The taper of bullet, so as to change the diameter of drill body.
3. deformable rotary drilling-head according to claim 2, it is characterized in that：On the body of rod sliding sleeve (9) vertically
Rack (6) is fixedly installed, and has gear (7) to be meshed with rack (6)；The electricity rotated for drive gear (7) is set
Machine (8) is rotated using motor (8) drive gear (7) and passes through rack (6) drive body of rod sliding sleeve (9) and bottom collar (11b)
Axial movement on center-pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044591.8A CN106337657B (en) | 2016-11-24 | 2016-11-24 | A kind of deformable rotary drilling-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044591.8A CN106337657B (en) | 2016-11-24 | 2016-11-24 | A kind of deformable rotary drilling-head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337657A CN106337657A (en) | 2017-01-18 |
| CN106337657B true CN106337657B (en) | 2018-05-18 |
Family
ID=57841160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611044591.8A Expired - Fee Related CN106337657B (en) | 2016-11-24 | 2016-11-24 | A kind of deformable rotary drilling-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106337657B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836204B (en) * | 2017-03-15 | 2019-03-08 | 中铁六局集团路桥建设有限公司 | The device and method of pouring pile bearing capacity under a kind of promotion Soft Soil |
| CN107654734A (en) * | 2017-11-22 | 2018-02-02 | 江苏德创制管有限公司 | A kind of anchor ear support component for pipe fitting connection |
| CN111395968B (en) * | 2020-04-30 | 2021-07-27 | 长沙市金钻机械有限公司 | Split type two-bucket rotary drilling bit |
| CN112873402B (en) * | 2021-01-11 | 2023-01-13 | 南京市蓝业科技有限公司 | Equipment for processing non-woven fabric punched holes |
| CN112873431A (en) * | 2021-01-22 | 2021-06-01 | 温州职业技术学院 | High-efficient puncher of furniture board |
| CN112873433B (en) * | 2021-01-22 | 2022-06-17 | 温州职业技术学院 | Continuous drilling's furniture timber drilling equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2665481A1 (en) * | 1990-08-02 | 1992-02-07 | Fade Jean Marie | Method of drilling, with two directions of rotation, actuating a stabilisation device having a diameter which varies according to the direction of rotation |
| CN2262096Y (en) * | 1996-10-15 | 1997-09-10 | 何建平 | Multiple adaptive bottom enlarging drill bit |
| CN2288261Y (en) * | 1997-06-17 | 1998-08-19 | 鞠庆海 | Dual-purpose drilling broaching bit controlled by centrifugal wings |
| CN202596582U (en) * | 2012-05-17 | 2012-12-12 | 池津维 | Variable-diameter drill |
| CN103004329B (en) * | 2013-01-17 | 2014-10-01 | 山东理工大学 | Planting digging machine drill with variable diameter |
| CN103244056A (en) * | 2013-05-27 | 2013-08-14 | 韩一波 | Variable diameter PDC (polycrystalline diamond compact) bit |
| CN203701977U (en) * | 2013-12-26 | 2014-07-09 | 北京市三一重机有限公司 | Diameter-variable underreaming drill and drilling machine |
| CN105625947B (en) * | 2016-03-24 | 2018-12-25 | 平煤建工集团特殊凿井工程有限公司 | A kind of drill bit for Drilling variable aperture stake holes |
| CN105781424A (en) * | 2016-05-03 | 2016-07-20 | 周兆弟 | Variable-diameter drilling bit mechanism for drill stem |
-
2016
- 2016-11-24 CN CN201611044591.8A patent/CN106337657B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN106337657A (en) | 2017-01-18 |
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