CN104533297A - Diameter-variable drill bit of long-spiral drill - Google Patents
Diameter-variable drill bit of long-spiral drill Download PDFInfo
- Publication number
- CN104533297A CN104533297A CN201510016654.8A CN201510016654A CN104533297A CN 104533297 A CN104533297 A CN 104533297A CN 201510016654 A CN201510016654 A CN 201510016654A CN 104533297 A CN104533297 A CN 104533297A
- Authority
- CN
- China
- Prior art keywords
- long
- drill
- blade
- screw
- core
- 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 description 21
- 230000000694 effects Effects 0.000 claims description 8
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 230000036346 tooth eruption Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 239000002689 soil Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002002 slurry 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
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
Provided is a diameter-variable drill bit of a long-spiral drill. A lip-shaped locating ring which has the role of axial locating and is connected with a hollow runner of the long-spiral drill is arranged at the top of the drill bit. A long-spiral drill pipe is connected with screws through fixing lugs on both sides of the lip-shaped locating ring. The part above the middle of a drill core is a diameter-variable cutting section drill core, and the screw blade of the part becomes gradually bigger in the upward direction. The part below the middle of the drill core is a guiding section drill core, wherein the blade diameter is unchanged. The drill core is provided with the screw blade, the front end of the screw blade is provided with cutting edges, the screw blade of the cutting section is provided with cutting teeth, a drill bit point is arranged at the bottom of the drill bit, the drill bit point is provided with a main cutting tool, and the top of the main cutting tool is connected with the drill core through the fixing lugs on both sides of the lip-shaped locating ring and retaining screws. The diameter-variable drill bit of the long-spiral drill is especially suitable for the construction of lock-joint pile waterproof curtains with pre-guide holes and the construction of other long-spiral piles with pre-guide holes, and effectively solves the problems that the pile-body perpendicularity deviation and the pile position deviation are large in the long-spiral construction.
Description
Technical field
The present invention relates to a kind of novel long-spiral drilling machine expansion bit, be mainly used in the construction of the stake of field of civil engineering long spire and occluding pile wall thereof.
Background technology
In base pit engineering, occluding pile wall water-stop curtain is compared diaphragm wall technique and is had good economy performance and the feature such as ground adaptability is strong, applies increasingly extensive, but there is the restriction of the aspects such as pile position deviation, pile body verticality and occlusion ability in engineering.Interlocking pile construction very high to the requirement of forming machinery, usual two sequence stakes all adopt full-rotating drill, band outer sleeve revolve large-scale pile foundation construction equipment such as digging pile foundation, the high request of construction equipment also limits the application of occluding pile wall to a certain extent.Long spire stake, compared to engineering methods such as slurry drilled piles, has quick, environmental protection, economic dispatch feature, has been widely used in various foundation pit supporting project and pile foundation engineering.But limitting by its technology and equipment, pile body degree control and stake position control poor, can have a strong impact on the effect of water-stop curtain for occluding pile wall, the potential safety hazard such as cause that curtain leaks.In order to play the advantage of long spire pile and occluding pile wall better, need the problem solving long spire construction pile body degree control and the control of stake position.
Summary of the invention
In order to solve pile body verticality and stake position control problem, the invention provides one after drawing hole, effectively improving long spire agitation pile pile body verticality, solving the long-spiral drilling machine expansion bit of pile position deviation problem.
The object of the invention is to be achieved through the following technical solutions: a kind of long-spiral drilling machine expansion bit, comprise drill body, described drill bit bottom is provided with bit point of the drill 1, bit point of the drill 1 is provided with main cutting cutter 2, middle part is that long cylinder bores core, drill end has been provided with the lip locating ring 7 of axial location effect, lip locating ring 7 both sides are provided with a pair fixing ear 8 be fixedly connected with long screw drill rod 10, fixing ear 8 is mounted with screw 9, it is boundary that long cylinder bores Xin Yizuanxin center, segment of cutting is divided into bore core 5 and boot segment brill core 6, long cylinder bores core and is provided with helical blade 3, helical blade 3 front end has cutting edge 4, the helical blade 3 that boot segment bores core 6 is non-Reducing screw blade, the helical blade 3 that segment of cutting bores core 5 is Reducing screw blade.
The fixing ear 8 of described drill end is connected with the holddown groove of long screw drill rod 10 by fixed screw 9.Main cutting cutter 2 upper end is bored core 6 by both sides fixed screw 9 with boot segment and is connected.
The length that described long cylinder bores core is 3m, and diameter is identical with long screw drill rod 10.
The top vane diameter of described Reducing screw blade is identical with the helical blade of long screw drill rod 10, and diameter is 800-1200mm, and bottom blade is identical with the diameter of non-Reducing screw blade, and diameter is 200-600mm.The screw thread trend of Reducing screw blade is consistent with the helical blade of long screw drill rod 10, non-Reducing screw blade, evenly diminishes gradually diametrically.Reducing screw blade adopts the thickening helical blade of 3-15mm, and surface is provided with regular pick 11.
After drawing hole, drill bit is made to aim at pre-making hole, unload the side fixed screw 9 boring core 6 junction for fixed drill bit most advanced and sophisticated 1 and boot segment, in the process of boring under long-spiral drilling machine, bit point of the drill 1 and boot segment bore core 6 and first enter and draw hole, partially soft relative to surrounding soil owing to drawing mud in hole, bit point of the drill and boot segment bore core and are easier to when soil body counter-force retrains around bore under pre-making hole, thus the verticality in the process of boring under ensureing drill bit.When squeezing into desired depth, upwards carry long screw drill rod 10, because side fixed screw 9 is removed, bit point of the drill 1 under gravity, rotate to opposite side, open long spire hollow duct, make the fillers such as concrete can fall into boring at the upper process once-cast pile carried by hollow duct.
In drilling process, when drill bit runs into both sides, pre-making hole stirring pile concrete, pile body can be broken up by the pick 11 that segment of cutting bores on the helical blade 3 of core 5 under comparatively high pulling torque effect, then under the secondary pulse effect of the cutting edge of screw thread vane nose, larger concrete is continued to smash, the coagulation local product blocks smashed etc. are along with screw thread continuation rising around brill core, and extrusion shearing destroys further, and the helicla flute finally by long screw drill rod 10 is discharged.
The present invention can utilize drill bit feature after drawing hole in advance, long screw drill rod top is retrained, bit point of the drill and boot segment by rig, bore core to retrain by the soil body, upper and lower two ends by force constraint, effectively can ensure the verticality of long spire pore-forming simultaneously, solve the problem that pile position deviation is large; Due on to carry in process bit point of the drill and rotate, open long-spiral drilling machine hollow channel, be convenient to add the fillers such as concrete, achieve long screw drill rod piling, cast integrated construction, saved the working time, ensure that pile quality.In addition, the even reducing of helical blade of segment of cutting, is conducive to the ride comfort of drilling process and helicla flute row thing.
Accompanying drawing explanation
Fig. 1 is long-spiral drilling machine expansion bit structural representation; Fig. 2 is that long-spiral drilling machine expansion bit reducer bores core sectional drawing;
Accompanying drawing number title: 1, bit point of the drill, 2, main cutting cutter, 3, helical blade, 4, cutting edge, 5, segment of cutting bores core, 6, boot segment bores core, 7, lip locating ring, 8, fixing ear, 9, fixed screw, 10, long screw drill rod, 11, pick.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, drill bit top has been provided with the lip locating ring 7 of axial positioning function, and lip locating ring 7 both sides are provided with a pair fixing ear 8 be fixedly connected with long screw drill rod 10, and fixing ear 8 is provided with fixed screw 9; Boring core divides segment of cutting to bore core 5 and boot segment brill core 6, and bore on core and arrange helical blade 3, all there is cutting edge 4 helical blade 3 front end; The helical blade 3 that segment of cutting bores core 5 is provided with pick 11, and there is bit point of the drill 1 drill bit bottom, and bit point of the drill 1 is provided with main cutting cutter 2.
After drawing hole, drill bit is made to aim at pre-making hole, unload the side fixed screw 9 boring core 6 junction for fixed drill bit most advanced and sophisticated 1 and boot segment, in the process of boring under rig, bit point of the drill 1 and boot segment bore core 6 and first enter pre-making hole, partially soft relative to surrounding soil owing to drawing mud in hole, boot segment bores core 6 and is easier to when soil body counter-force retrains around bore under drawing hole, effectively ensure that the verticality of drill bit in drilling process.When squeezing into desired depth, upwards carry long screw drill rod 10, owing to having unloaded side fixed screw 9, make bit point of the drill 1 under gravity, rotate to opposite side, thus open long spire hollow duct, make the fillers such as concrete can fall into boring by hollow duct, thus reach pile-forming effect in the upper process carried.
In drilling process, when drill bit runs into both sides, pre-making hole stirring pile concrete, pile body can be broken up by pick 11 under comparatively high pulling torque effect, then under the secondary pulse effect of the cutting edge 4 of screw thread blade 3 front end, larger concrete is continued to smash, the concrete block smashed is along with helical blade 3 continuation rising also further extrusion shearing, and the helicla flute finally by long screw drill rod 10 is discharged.
Claims (9)
1. a long-spiral drilling machine expansion bit, comprise drill body, described drill bit bottom is provided with bit point of the drill (1), bit point of the drill (1) is provided with main cutting cutter (2), middle part is that long cylinder bores core (5, 6), it is characterized in that: drill end has been provided with the lip locating ring (7) of axial location effect, lip locating ring (7) both sides are provided with a pair fixing ear (8) be fixedly connected with long screw drill rod (10), fixing ear (8) is mounted with screw (9), long cylinder bores core (5, 6) segment of cutting is divided into bore core (5) and boot segment brill core (6), long cylinder bores core (5, 6) helical blade (3) is provided with, helical blade (3) front end has cutting edge (4), the helical blade (3) that boot segment bores core (6) is non-Reducing screw blade, the helical blade (3) that segment of cutting bores core (5) is Reducing screw blade.
2. long-spiral drilling machine expansion bit according to claim 1, is characterized in that, the fixing ear (8) of drill end is connected by the holddown groove of fixed screw (9) with long screw drill rod (10).
3. long-spiral drilling machine expansion bit according to claim 1, is characterized in that, the length that described long cylinder bores core (5,6) is 3m, and diameter is identical with long screw drill rod (10).
4. long-spiral drilling machine expansion bit according to claim 1, is characterized in that, the top vane diameter of Reducing screw blade is identical with the helical blade of long screw drill rod (10), and bottom blade is identical with the diameter of non-Reducing screw blade.
5. long-spiral drilling machine expansion bit according to claim 4, is characterized in that, the screw thread of Reducing screw blade trend and the helical blade of long screw drill rod (10), non-Reducing screw blade are consistent, evenly diminish gradually diametrically.
6. long-spiral drilling machine expansion bit according to claim 5, is characterized in that, the top vane diameter of Reducing screw blade is 800-1200mm, and bottom blade diameter is 200-600mm.
7. long-spiral drilling machine expansion bit according to claim 4, is characterized in that, Reducing screw blade adopts the thickening helical blade of 3-15mm.
8. long-spiral drilling machine expansion bit according to claim 7, is characterized in that, the surface of Reducing screw blade is provided with pick (11).
9. long-spiral drilling machine expansion bit according to claim 1, is characterized in that, main cutting cutter (2) upper end is bored core (6) by both sides fixed screw (9) with boot segment and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016654.8A CN104533297A (en) | 2015-01-14 | 2015-01-14 | Diameter-variable drill bit of long-spiral drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016654.8A CN104533297A (en) | 2015-01-14 | 2015-01-14 | Diameter-variable drill bit of long-spiral drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533297A true CN104533297A (en) | 2015-04-22 |
Family
ID=52848902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016654.8A Pending CN104533297A (en) | 2015-01-14 | 2015-01-14 | Diameter-variable drill bit of long-spiral drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533297A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003200A (en) * | 2015-07-03 | 2015-10-28 | 左红 | Hole drilling equipment and hole drilling method of hole drilling equipment |
| CN106284308A (en) * | 2016-10-17 | 2017-01-04 | 重庆大学 | A kind of overlength screw stake and construction method thereof |
| CN110206029A (en) * | 2019-06-18 | 2019-09-06 | 蒿振侠 | Drill bit mechanism is stirred in turn pair to connecting shaft up and down |
| CN111395974A (en) * | 2020-05-21 | 2020-07-10 | 何学峰 | Rotary drilling rig for mounting electric pole for electric power construction |
| CN112576195A (en) * | 2019-09-28 | 2021-03-30 | 中铁第六勘察设计院集团有限公司 | Hard cutting secant pile construction drill bit with guiding function and construction process thereof |
| CN114703881A (en) * | 2022-04-18 | 2022-07-05 | 山西建筑工程集团有限公司 | Construction method of waterproof curtain containing confined water hard stratum and triaxial mixing pile device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624899A (en) * | 2009-08-07 | 2010-01-13 | 李新桥 | Drill of high pressure water jet long screw pile driver |
| CN101798905A (en) * | 2009-07-13 | 2010-08-11 | 李新桥 | Multispiral cutter-type drill bit for long screw pile machine |
| CN201763251U (en) * | 2010-09-07 | 2011-03-16 | 李新桥 | Double-cone double spiral bit for rotary drill |
| CN102155157A (en) * | 2011-03-01 | 2011-08-17 | 何庆林 | Spiral drilling machine for forming concrete piles of different depths and shapes |
| CN202220550U (en) * | 2011-09-08 | 2012-05-16 | 郑州正弘桩工机械制造有限公司 | Long spiral drilling machine |
| CN104264666A (en) * | 2014-10-20 | 2015-01-07 | 刘淼 | Variable diameter all-thread pile and pile forming method thereof |
| CN204402365U (en) * | 2015-01-14 | 2015-06-17 | 北京中岩大地工程技术有限公司 | A kind of long-spiral drilling machine expansion bit |
-
2015
- 2015-01-14 CN CN201510016654.8A patent/CN104533297A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798905A (en) * | 2009-07-13 | 2010-08-11 | 李新桥 | Multispiral cutter-type drill bit for long screw pile machine |
| CN101624899A (en) * | 2009-08-07 | 2010-01-13 | 李新桥 | Drill of high pressure water jet long screw pile driver |
| CN201763251U (en) * | 2010-09-07 | 2011-03-16 | 李新桥 | Double-cone double spiral bit for rotary drill |
| CN102155157A (en) * | 2011-03-01 | 2011-08-17 | 何庆林 | Spiral drilling machine for forming concrete piles of different depths and shapes |
| CN202220550U (en) * | 2011-09-08 | 2012-05-16 | 郑州正弘桩工机械制造有限公司 | Long spiral drilling machine |
| CN104264666A (en) * | 2014-10-20 | 2015-01-07 | 刘淼 | Variable diameter all-thread pile and pile forming method thereof |
| CN204402365U (en) * | 2015-01-14 | 2015-06-17 | 北京中岩大地工程技术有限公司 | A kind of long-spiral drilling machine expansion bit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003200A (en) * | 2015-07-03 | 2015-10-28 | 左红 | Hole drilling equipment and hole drilling method of hole drilling equipment |
| CN105003200B (en) * | 2015-07-03 | 2017-06-23 | 左红 | Rig and its boring method |
| CN106284308A (en) * | 2016-10-17 | 2017-01-04 | 重庆大学 | A kind of overlength screw stake and construction method thereof |
| CN110206029A (en) * | 2019-06-18 | 2019-09-06 | 蒿振侠 | Drill bit mechanism is stirred in turn pair to connecting shaft up and down |
| CN112576195A (en) * | 2019-09-28 | 2021-03-30 | 中铁第六勘察设计院集团有限公司 | Hard cutting secant pile construction drill bit with guiding function and construction process thereof |
| CN111395974A (en) * | 2020-05-21 | 2020-07-10 | 何学峰 | Rotary drilling rig for mounting electric pole for electric power construction |
| CN114703881A (en) * | 2022-04-18 | 2022-07-05 | 山西建筑工程集团有限公司 | Construction method of waterproof curtain containing confined water hard stratum and triaxial mixing pile device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104533297A (en) | Diameter-variable drill bit of long-spiral drill | |
| KR100919628B1 (en) | If the excavation where the carbide tip is had excavation bit of the excavation system where the expansion and abridgment are possible | |
| CN105649012B (en) | Upper-soft lower-hard ground subway station building enclosure drilled pile construction method | |
| CN105113986B (en) | A kind of barrette pore-forming equipment | |
| CN107246242B (en) | Dual-purpose drill bit for slurry wall-protecting bored pile construction and use method thereof | |
| CN104196442A (en) | Method for carrying out construction in vertical shaft or inclined shaft through raise boring machine | |
| CN209976470U (en) | Gravel stratum pipe well dewatering well completion device | |
| CN107489158A (en) | A kind of spiral-digging pore stirs the construction method of water spray soil occlusion curtain pile | |
| CN204402365U (en) | A kind of long-spiral drilling machine expansion bit | |
| CN203905895U (en) | Multifunctional rotary jet grouting device for core drilling | |
| CN105089506B (en) | A kind of double-layer cross self-drilling anchor rod bit | |
| CN110306934A (en) | The construction method and supporting drilling tool of double branch's top plate major diameter high position directional long boreholes | |
| CN104963626A (en) | Long spiral drilling machine used for forming long spiral broaching pile and pile forming method | |
| CN103277037A (en) | Pipe pile leading-hole construction method under boulder cluster geological condition | |
| CN104563886A (en) | Segmented bit of long spiral drilling machine | |
| CN103074887B (en) | High-pressure vibro-grouting method for processing foundation and specific drilling tool assembly | |
| CN205297337U (en) | Hole reaming and digging device for well drilling | |
| CN103031847A (en) | Reducing overlap joint combined type orifice pipe grouting method | |
| CN203129151U (en) | Grouting head capable of drilling and grouting synchronously | |
| CN203080528U (en) | Drilling and spraying integrated foundation treating special drilling tool assembly | |
| CN108265703B (en) | Cutter device for seamless grooving machine of thin-wall continuous wall | |
| CN111042820A (en) | Construction method for sand layer with oversized pilot hole by vertical shaft raise-shaft method | |
| CN217712429U (en) | Hollow type rapid construction drill bit suitable for hard rock stratum | |
| CN204402364U (en) | A kind of long-spiral drilling machine segmentation drill bit | |
| CN205036298U (en) | Double -deck cross self -drilling anchor rod drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100041 Shijingshan District City, apple Park Avenue, No., building, Jing Jing, layer 12, 2 Applicant after: BEIJING ZHONGYAN DADI TECHNOLOGY CO., LTD. Address before: 100041 Shijingshan District City, apple Park Avenue, No., building, Jing Jing, layer 12, 2 Applicant before: Beijing Zhongyan Dadi Engineering Technology Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |