CN106337657A - Deformable rotary drill bit - Google Patents
Deformable rotary drill bit Download PDFInfo
- Publication number
- CN106337657A CN106337657A CN201611044591.8A CN201611044591A CN106337657A CN 106337657 A CN106337657 A CN 106337657A CN 201611044591 A CN201611044591 A CN 201611044591A CN 106337657 A CN106337657 A CN 106337657A
- Authority
- CN
- China
- Prior art keywords
- fanning strip
- rotary drilling
- auger spindle
- umbrella frame
- drill bit
- 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.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 15
- 241001074085 Scophthalmus aquosus Species 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 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 deformable rotary drill bit, characterized by that the rotary drill bit comprises a drill body, a drill shaft and a support frame; the bit body is a conical body which is integrally formed by a plurality of sectors arranged separately; a cutting port is formed on the side of the fan-shaped piece; a support frame is arranged as a structure of the umbrella frame; and each sector piece is arranged on the umbrella frame, and the degree of engagement of the fan-shaped piece is adjusted by the tension of the umbrella frame, the drill shaft is the transmission shaft, the drill shaft is the central rod of the umbrella frame, and the drill shaft is used to drive the drill bit to rotate. In that invention, the diameter of the drill bit is changed by changing the angle of the open of the sector piece, such that the drill bit can be recovered, and the function of the drill bit and the reamer can be realized simultaneously.
Description
Technical field
The present invention relates to drill bit, more specifically one kind apply Drilling bore bit in underground engineering.
Background technology
Drill bit is mounted in the drilling equipment assembly of drilling rod leading portion.In trenchless technology, some underground pipeline layout, brill
Hole slip casting and the underground engineerings such as strengthening of foundation, the drilling rod after boring shapes is to bury as supporting construction to stay underground, and drill bit exists
Need after pore-forming to return to be reclaimed.Drilling equipment of the prior art, its bit diameter immobilizes, often with drill pipe diameter
Equal, or even it is slightly larger than drill pipe diameter, in the case of not receiving drilling rod, drill bit cannot reclaim, and drill bit is relatively valuable in rig
Assembly, this obviously cause waste.
Content of the invention
The present invention is for avoiding the deficiency existing for above-mentioned prior art, providing a kind of deformable rotary drilling-head, pass through
The size changing drill bit itself external diameter, so that drill bit can be return the middle cavity through drilling rod after reduced outside diameter, realizes drill bit
Recovery.
The present invention is to solve technical problem to adopt the following technical scheme that
Being structurally characterized in that of the deformable rotary drilling-head of the present invention: described rotary drilling-head include drill body, auger spindle and
Support；
Described drill body is that the multi-disc fanning strip being arranged by split is filled the span of a man's arms the bullet being formed, in described fanning strip side
It is formed with cutting mouth；
Support frame as described above is set to the version of umbrella frame, and each fanning strip is arranged on umbrella frame, using umbrella frame
Opening and closing adjust the obvolvent degree of fanning strip, realize the adjustment of drill body diameter；
Described auger spindle is power transmission shaft, and the center-pole with auger spindle as umbrella frame drives bit using auger spindle.
The design feature of the deformable rotary drilling-head of the present invention lies also in: described umbrella frame is to fix on the top of center-pole
Setting top retainer plate, arranges bottom collar at the body of rod sliding sleeve top of center-pole, in described top retainer plate and bottom collar
Between arrange linkage；Fanning strip in described drill body is arranged on described linkage, by adjusting bottom collar
Axial location on center-pole to change the taper of the bullet of drill body, thus changing the diameter of drill body.
The design feature of the deformable rotary drilling-head of the present invention lies also in: is axially fixed setting on described body of rod sliding sleeve
There is tooth bar, and have wheel and rack to be meshed；It is provided for the motor that driving gear is rotated, turned using motor-driven gear
Move and pass through the axial movement on center-pole of rack drives body of rod sliding sleeve and bottom collar.
The design feature of the deformable rotary drilling-head of the present invention lies also in: described cutting mouth is the side setting in fanning strip
Insert groove, installs removable blade in described insert groove.
The design feature of the deformable rotary drilling-head of the present invention lies also in: for two sides of fanning strip, it faces up drill bit
The side of body direction of rotation is side of facing upward, and opposite side is rear side, and blade is arranged on side of facing upward, and each fanning strip is from dorsal part side court
It is involute so that the blade being arranged on side of facing upward diametrically protrudes from the back of the body of another fanning strip to the outer contour of side of facing upward
Surface side.
The design feature of the deformable rotary drilling-head of the present invention lies also in: described is filled the span of a man's arms the taper being formed by multi-disc fanning strip
Body, maintains gap between adjacent fanning strip, as chip removal space；Make arc point of a knife in each fanning strip of cone head part,
Top chip-removal hole has been collectively forming with the arc point of a knife of each fanning strip.
The design feature of the deformable rotary drilling-head of the present invention lies also in: on described center-pole, axially spaced setting
Each spring latch lock, arranges arc groove on the correspondence position of described bottom collar, by described spring latch lock and arc groove structure
Become position limiting structure；The position of each spring latch lock is corresponded with the opening and closing degree of umbrella frame.
The design feature of the deformable rotary drilling-head of the present invention lies also in: described auger spindle is hollow shaft, in described auger spindle
In the auger spindle port of front end, it is threaded with shower nozzle, is respectively arranged with spray orifice in the front end face of shower nozzle and sidepiece, described spray orifice leads to
The middle cavity 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 set to the form filled the span of a man's arms by the present invention, carries out applying brill with the drill body launching, after folding
Drill body smoothly can reclaim in drilling rod it is achieved that drill bit reclaim goal of the invention.
2nd, rotary drilling-head of the present invention is in work progress, because its drill bit can change itself size, and equipped with can spray punching
Wash the shower nozzle of medium, its fanning strip cuts and the soil body smashing around drill bit and gravel easily creep into, the change of drill bit itself size
Change can be flexibly adapted in work progress the aperture of change, and changes work area and the space of drill bit, played brill simultaneously
Head and the effect of reamer, efficiently solve the routing problem of the change in drill bit drilling and removal process, have safety fast
The features such as victory, economy, strong applicability.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is segmental structure schematic diagram in the present invention；
Fig. 3 is fanning strip deployed condition schematic diagram in the present invention；
Fig. 4 is support frame structure schematic diagram in the present invention；
Fig. 5 is bracing frame deployed condition schematic diagram in the present invention；
Fig. 6 is the elastic collision pearl structural representation 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；
In figure label: 1 blade, 2 fanning strips, 3 arc points of a knife, 4 insert grooves, 5 auger spindles, 6 tooth bars, 7 gears, 8 motors, 9 bars
Body sliding sleeve, 10 linkages, 11a top retainer plate, 11b bottom collar, 12 auger spindle ports, 13 shower nozzles, 14 collision beads, 15 spray orifices,
16 supports, 17 power supplys.
Specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, the version of deformable rotary drilling-head is: rotation
Drill bit includes drill body, auger spindle 5 and bracing frame.
Drill body is the 2-in-1 armful of bullet being formed of multi-disc fanning strip being arranged by split, is formed with fanning strip 2 side
Cutting mouth；Bracing frame is set to the version of umbrella frame, and each fanning strip 2 is arranged on umbrella frame, using the opening and closing of umbrella frame
The obvolvent degree of adjustment fanning strip 2, realizes the adjustment of drill body diameter；Auger spindle 5 is power transmission shaft, with auger spindle 5 as umbrella frame
Center-pole, drives bit using auger spindle 5.
In being embodied as, corresponding structure setting also includes:
As Fig. 1, Fig. 4 and Fig. 5, umbrella frame is top retainer plate 11a to be fixedly installed on the top of center-pole, in center-pole
Body of rod sliding sleeve top arranges bottom collar 11b, arranges linkage 10 between top retainer plate 11a and bottom collar 11b；Bore
Head body in fanning strip 2 be arranged on linkage 10, by adjust axial location on center-pole for bottom collar 11b Lai
Change the taper of the bullet of drill body, thus changing the diameter of drill body.Body of rod sliding sleeve 9 is axially fixed setting
There is tooth bar 6, and have gear 7 to be meshed with tooth bar 6；It is provided for the motor 8 that driving gear 7 is rotated, driven using motor 8
Gear 7 rotates and passes through tooth bar 6 and drives the axial movement on center-pole of body of rod sliding sleeve 9 and bottom collar 11b.
As shown in figure 8, be fixedly installed on auger spindle 5 motor 8 using support 16, for avoiding support 16 to stop body of rod sliding sleeve
9 move up and down along auger spindle 5, are provided with two axial gaps substantially symmetrical about its central axis on body of rod sliding sleeve 9.Power supply 17 is motor 8
There is provided electric energy, both are fixed together, setting inductive switch is motor 8 turn on automatically or deenergization 17, motor 8 is rotating
Motor, makes tooth bar 6 can slide up and down along auger spindle 5 with body of rod sliding sleeve 9.
Cutting mouth is the side setting insert groove 4 in fanning strip 2, installs removable blade 1 in insert groove 4；For
Two sides of fanning strip 2, it faces up the side of drill body direction of rotation is side of facing upward, and opposite side is rear side, and blade 1 is installed
In side of facing upward, the outer contour from dorsal part side towards side of facing upward for each fanning strip 2 is involute so that being arranged on the blade of side of facing upward
1 rear side diametrically protruding from another fanning strip.
As shown in Figures 2 and 3, by 2-in-1 armful of bullet being formed of multi-disc fanning strip in the present embodiment, in adjacent fanning strip
Gap is maintained, as chip removal space between 2；Make arc point of a knife 3 in each fanning strip 2 of cone head part, with the arc of each fanning strip 2
Shape point of a knife 3 has been collectively forming top chip-removal hole.
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 constituted by spring latch lock 14 and arc groove；The position of each spring latch lock 14
Put the opening and closing degree one-to-one corresponding with umbrella frame；Three spring latch locks 14 are recessed with the arc in bottom collar 11b correspondingly
Cooperation between groove is spacing, so that fanning strip 2 is limited in three different opening and closing degree, corresponding to apart from top retainer plate
The spring latch lock of 11a proximal most position, the stretching degree of fanning strip 2 is maximum, and that is, bit diameter is maximum；Corresponding to solid apart from top
Surely enclose the spring latch lock of 11a highest distance position, the stretching degree of fanning strip 2 is minimum, and that is, 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, it is threaded with shower nozzle 13,
It is respectively arranged with spray orifice 15 in the front end face of shower nozzle 13 and sidepiece, spray orifice 15 is connected with external water source by the middle cavity of auger spindle 5
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
High temperature can be produced etc. hard objects friction, thus reducing the performance of drill bit, this situation can be improved using wet brill method, extending drill bit
Service life.
The deformable rotary drilling-head of the present invention adopts wet brill method work, and drill bit, MTR, probe chamber and drilling rod connect successively
Connect, for underground break-in boring.The auger spindle 5 of drill bit is connected with MTR through universal drive shaft, and MTR carries for bit
For power.It is desirable to minimum diameter when drill pipe diameter closes up more than drill bit in work progress.During drill bit drilling, mud
Slurry motor, probe chamber and drilling rod do not rotate, and only drill bit and the internal rotor of MTR rotate.Probe chamber is played guiding and is made
With.
Arrange an electric wire in the end in probe chamber to pass through from drilling rod inner chamber, after drill bit completes boring, motor 8 drives and makes brill
The fanning strip of head is 2-in-1 to be held together to make bit diameter become minimum, then draws the electric wire on ground by drill bit, MTR together with probe chamber
Through towing back to ground inside drilling rod, complete drill bit and reclaim.Electric wire is not only the wire providing electric power for bit operation, or returns
Drag the rope of drill bit, therefore it is required that electric wire pull resistance is high, durable.
Claims (8)
1. a kind of deformable rotary drilling-head, is characterized in that: described rotary drilling-head includes drill body, auger spindle (5) and bracing frame；
Described drill body is that the multi-disc fanning strip (2) being arranged by split is filled the span of a man's arms the bullet being formed, in described fanning strip (2) side
While being formed with cutting mouth；
Support frame as described above is set to the version of umbrella frame, and each fanning strip (2) is arranged on umbrella frame, opening using umbrella frame
Close the obvolvent degree of adjustment fanning strip (2), realize the adjustment of drill body diameter；
Described auger spindle (5) is power transmission shaft, and the center-pole with auger spindle (5) as umbrella frame drives bit using auger spindle (5).
2. deformable rotary drilling-head according to claim 1, is characterized in that: described umbrella frame is the top in center-pole
Top retainer plate (11a) is fixedly installed, bottom collar (11b) is set at the body of rod sliding sleeve top of center-pole, solid at described top
Setting linkage (10) between fixed circle (11a) and bottom collar (11b)；Fanning strip (2) in described drill body is arranged on
On described linkage (10), change drill body by adjusting axial location on center-pole for the bottom collar (11b)
The taper of bullet, thus change the diameter of drill body.
3. deformable rotary drilling-head according to claim 2, is characterized in that: on described body of rod sliding sleeve (9) vertically
It is fixedly installed tooth bar (6), and have gear (7) to be meshed with tooth bar (6)；It is provided for the electricity that driving gear (7) is rotated
Machine (8), is rotated and passes through tooth bar (6) and drive body of rod sliding sleeve (9) and bottom collar (11b) using motor (8) driving gear (7)
Axial movement on center-pole.
4. deformable rotary drilling-head according to claim 1, is characterized in that: described cutting mouth is in fanning strip (2)
Side setting insert groove (4), installs removable blade (1) in described insert groove (4).
5. deformable rotary drilling-head according to claim 4, is characterized in that: for two sides of fanning strip (2), it is faced upward
The side drill body direction of rotation is side of facing upward, and opposite side is rear side, and blade (1) is arranged on side of facing upward, each fanning strip
(2) outer contour from dorsal part side towards side of facing upward is involute so that the blade (1) being arranged on side of facing upward diametrically protrudes
Rear side in another fanning strip.
6. deformable rotary drilling-head according to claim 1, is characterized in that: described is filled the span of a man's arms shape by multi-disc fanning strip (2)
The bullet becoming, maintains gap, as chip removal space between adjacent fanning strip (2)；Each fanning strip (2) in cone head part
Make arc point of a knife (3), top chip-removal hole has been collectively forming with the arc point of a knife (3) of each fanning strip (2).
7. deformable rotary drilling-head according to claim 1, is characterized in that: on described center-pole, axially spaced
Each spring latch lock (14) is set, the correspondence position of described bottom collar (11b) arranges arc groove, by described spring latch lock
(14) constitute position limiting structure with arc groove；The position of each spring latch lock (14) is corresponded with the opening and closing degree of umbrella frame.
8. deformable rotary drilling-head according to claim 1, is characterized in that: described auger spindle (5) is hollow shaft, described
In the auger spindle port (12) of the front end of auger spindle (5), it is threaded with shower nozzle (13), in front end face and the sidepiece difference of shower nozzle (13)
It is provided with spray orifice (15), described spray orifice (15) is connected with external water source by the middle cavity of auger spindle (5), realize water spray.
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 true CN106337657A (en) | 2017-01-18 |
| CN106337657B 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) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836204A (en) * | 2017-03-15 | 2017-06-13 | 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 lifting 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 |
| CN111395968A (en) * | 2020-04-30 | 2020-07-10 | 长沙市金钻机械有限公司 | Split type two-bucket rotary drilling bit |
| CN112873431A (en) * | 2021-01-22 | 2021-06-01 | 温州职业技术学院 | High-efficient puncher of furniture board |
| CN112872112A (en) * | 2021-01-12 | 2021-06-01 | 中铁二十五局集团有限公司 | Pipeline collapse repairing device and technology |
| CN112873402A (en) * | 2021-01-11 | 2021-06-01 | 赵宋波 | Equipment for processing non-woven fabric punched holes |
| CN112873433A (en) * | 2021-01-22 | 2021-06-01 | 温州职业技术学院 | Continuous drilling's furniture timber drilling equipment |
Citations (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 |
| CN103004329A (en) * | 2013-01-17 | 2013-04-03 | 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 |
| CN105625947A (en) * | 2016-03-24 | 2016-06-01 | 平煤建工集团特殊凿井工程有限公司 | Drill bit for drilling variable-aperture pile 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
Patent Citations (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 |
| CN103004329A (en) * | 2013-01-17 | 2013-04-03 | 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 |
| CN105625947A (en) * | 2016-03-24 | 2016-06-01 | 平煤建工集团特殊凿井工程有限公司 | Drill bit for drilling variable-aperture pile holes |
| CN105781424A (en) * | 2016-05-03 | 2016-07-20 | 周兆弟 | Variable-diameter drilling bit mechanism for drill stem |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836204A (en) * | 2017-03-15 | 2017-06-13 | 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 lifting Soft Soil |
| 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 |
| CN111395968A (en) * | 2020-04-30 | 2020-07-10 | 长沙市金钻机械有限公司 | Split type two-bucket rotary drilling bit |
| 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 |
| CN112873402A (en) * | 2021-01-11 | 2021-06-01 | 赵宋波 | Equipment for processing non-woven fabric punched holes |
| 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 |
| CN112872112A (en) * | 2021-01-12 | 2021-06-01 | 中铁二十五局集团有限公司 | Pipeline collapse repairing device and technology |
| CN112873431A (en) * | 2021-01-22 | 2021-06-01 | 温州职业技术学院 | High-efficient puncher of furniture board |
| CN112873433A (en) * | 2021-01-22 | 2021-06-01 | 温州职业技术学院 | Continuous drilling's furniture timber drilling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106337657B (en) | 2018-05-18 |
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