CN102505919A - Bearizing drilling bit - Google Patents
Bearizing drilling bit Download PDFInfo
- Publication number
- CN102505919A CN102505919A CN2011104474713A CN201110447471A CN102505919A CN 102505919 A CN102505919 A CN 102505919A CN 2011104474713 A CN2011104474713 A CN 2011104474713A CN 201110447471 A CN201110447471 A CN 201110447471A CN 102505919 A CN102505919 A CN 102505919A
- Authority
- CN
- China
- Prior art keywords
- main body
- reaming
- bearizing
- wing
- drilling 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.)
- Pending
Links
Images
Abstract
The invention discloses a bearizing drilling bit, which is provided with a drilling bit main body and at least one bearizing wing, wherein a spiral blade is arranged on the side wall of the drilling bit main body; grooves, of which the number is the same as that of the bearizing wings, are formed in the drilling bit main body on the upper part of a drilling bit guide head; one end of each bearizing wing is hinged in the corresponding groove through a pin shaft; the bearizing wings can rotate around the pin shafts to open and close; cylindrical concentric matched structures are adopted at the connection ends and on the connection parts of the bearizing wings and the drilling bit main body; and drilling teeth are formed on the guide head, the drilling bit main body and the bearizing wings. The connection parts of the bearizing wings and the drilling bit main body have the cylindrical concentric matched structures, so that a hollow cavity is not formed at a joint between each bearizing wing and the drilling bit main body; therefore, interference of drilling slag on the folding of the bearizing wings is avoided; and the work reliability is improved.
Description
Technical field
The present invention relates to the drill bit that a kind of pile foundation construction uses, especially relate to a kind of reaming bit.
Background technology
Occur the major diameter drill while drilling and casing of pick pore-forming pile foundation construction worker method in a kind of being applied at present, the advantage of this rig is prefabricated tubular pile to be followed drill bit directly get into rock-soil layer.And the key technology of this worker's method pile is to bore soil in the pile tube bottom, and boring mud is discharged in hole of post; The stake bore dia that bores need be slightly larger than the pile tube external diameter, and drill bit can take out in pile tube easily behind the pore-forming.
Patent CN2612791Y discloses a kind of reaming bit, comprises drilling rod and drill bit, two aerofoil profiles is housed on the drill bit at least bores sheet, and aerofoil profile brill sheet is through pin and drill bit is hinged and its cutting edge is angled with vertical line under nature.Aerofoil profile is housed on drill bit bores sheet, aerofoil profile is bored smooth opening under the centrifugal action of sheet when the reaction force of earth and rotation during boring; After boring is accomplished, promote drilling rod, aerofoil profile is bored sheet and under deadweight, is drawn in automatically.There is following defective in this scheme: wing receives the influence of soil layer hardness and rotary speed big when boring, and drilling diameter changes.
Existing market drill bit of the same type has form of structure such as single-blade wing and double-vane wing, like Fig. 6, shown in Figure 7.But there is following defective in existing product: the part boring mud that in drilling process, produces is deposited in the irregular cavity between reaming wing and the drill main body densely; Cavity 7 like Fig. 6 and Fig. 7; Because the reaming wing need reduce the volume of cavity 7 when regaining, if having boring mud in the cavity 7, with the reverse swing that hinders the reaming wing; Closely knit boring mud makes that wing is difficult to regain; Often occurring the reaming wing in the construction can't regain, and drill bit can't take out in stake, excavates the construction fault of getting drill bit with artificial dell; Single-blade wing reaming bit is owing to have only monolateral reaming, and in drilling process, the drill bit enlarging receives the earth resistance unbalanced, and problems such as the boring hole heart squints, the aperture is less than normal take place often, can not satisfy construction requirement.
Summary of the invention
In order to overcome the defective of prior art, the present invention provides a kind of reaming bit.This drill bit has simple in structure, compact, can realize the reaming function, can pierce middle weathered rock formation, good operating stability, and it is high that the brill reliability is regained and put forward to drill bit reaming wing.
In order to solve above technical problem, basic technical scheme of the present invention is: a kind of reaming bit has:
Drill main body, its sidewall is provided with helical blade;
At least one reaming wing; A drill guide upper drill bit main body is provided with and the identical groove of reaming wing quantity; One end of reaming wing is articulated in the groove through bearing pin; The reaming wing can rotate around bearing pin, realizes regaining and opening, and reaming wing and drill main body union end and drill main body and reaming wing point of attachment are the cylindrical-concentric fit structure.Said cylindrical-concentric fit structure is that reaming wing and drill main body union end are cylindrical contact surface; Contact surface with the reaming wing in the said groove is cylindrical recessed contact surface, and both have the common center of circle, and promptly the axle center of both connecting link pins does not form cavity after both cooperations.
Seeker, drill main body and reaming wing are provided with the brill tooth, bore tooth and connect with its tight fit.
During work, the reaming wing of reaming bit is opened by the earth resistance automatically, after the reaming wing opens, receives stopping of drill main body, is fixed on extended position, and the aperture that gets out after the reaming wing opens is slightly larger than the prefabricated tubular pile external diameter; When boring with after prefabricated tubular pile sinks to set depth, unit head reverses, the reaming wing of reaming bit receives earth frictional resistance automatic drawing back, reaming bit can be extracted in the prefabricated tubular pile hole easily.
Preferably, said reaming wing is in a symmetrical arrangement two, and two symmetrical reaming wings are connected with drill main body through bearing pin respectively, and the reaming wing can rotate along bearing pin in the groove in drill main body.Two reaming wings in a symmetrical arrangement, in the drill bit drilling process, the bit force balance helps protecting rig, avoids taking place problems such as the boring hole heart squints, the aperture is less than normal effectively.
Preferably, drill main body 1 is provided with the double helix blade symmetrically, and the earth import installation site of double helix blade and the earth exit position of reaming wing are complementary, and help leading soil, casting, reduces the live load of drill bit.
The aforementioned improved technical scheme can separately or merge and implement.
The beneficial effect that the present invention brings: because of reaming wing and drill main body point of attachment employing cylindrical-concentric fit structure, both cooperate the connection place, back not form cavity, and the interference of having avoided boring mud that the reaming wing is regained has improved the reliability of operation.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is an embodiment drill bit structure sketch map;
Fig. 2 is an embodiment drill bit structure schematic bottom view;
Sketch map when Fig. 3 opens for embodiment drill bit reaming wing;
Sketch map when Fig. 4 is the withdrawal of embodiment drill bit reaming wing;
Fig. 5 is the rig operation process sketch map that the embodiment drill bit has been installed;
Sketch map when Fig. 6 opens for drill bit reaming wing in the prior art;
Fig. 7 is sketch map when drill bit reaming wing is regained in the prior art.
The specific embodiment
Like Fig. 1 to reaming bit shown in Figure 4; It is in a symmetrical arrangement on the drill main body 1 on the drill guide 3 that drill main body 1 sidewall is provided with 5, two reaming wings of double helix blade 2, is symmetrical set on the drill main body 1 and the identical groove of reaming wing 2 quantity; One end of reaming wing 2 is articulated in the groove through bearing pin 6; Reaming wing 2 can rotate around bearing pin 6, realizes regaining and opening, and reaming wing 2 is cylindrical contact surface with drill main body 1 union end; Contact surface with reaming wing 2 in the said groove is cylindrical recessed contact surface, and both have the common center of circle, and promptly the axle center of both connecting link pins 6 does not form cavity after both cooperations.On drill main body 1 and seeker 3 thereof, reaming wing 2, be provided with and bore tooth 4, boring tooth 4 is that tight fit connects with its connected body.Drill main body 1 is established double helix blade 5, and the earth import installation site of double helix blade 5 and the earth exit position of reaming wing 2 are complementary, and help leading soil, casting, reduces the live load of drill bit.
A kind of rig that uses reaming bit, to drill bit shown in Figure 4, the rig job step is as shown in Figure 5 like Fig. 1 in use: one, drill bit reaming wing 2 is regained, inserted in the prefabricated tubular pile, drill bit exceeds the prefabricated tubular pile lower surface, prepares to hole; When two, creeping into, drill bit just changes, and earth produces frictional resistance to the reaming wing 2 of drill bit; Reaming wing 2 is cut soil resistance and is opened automatically, after the reaming wing opens, receives stopping of drill main body; Be fixed on extended position, the aperture that gets out is slightly larger than the prefabricated tubular pile external diameter; Three, when boring with after prefabricated tubular pile sinks to set depth; Stop to creep into, reaming bit reverses under the drive of drill power head, and the reaming wing 2 of reaming bit receives earth frictional resistance automatic drawing back; Because of reaming wing 2 is the cylindrical-concentric fit structure with drill main body 1 union end and drill main body 1 with reaming wing 2 points of attachment; Do not exist like Fig. 6 and cavity 7 shown in Figure 7, do not have earth in the reaming wing 2 withdrawal processes and produce interference, reaming wing 2 is easy to regain; Protection is high, and reaming bit can be extracted in the prefabricated tubular pile hole easily; Four, carry drill bit on, carry out subsequent handling, accomplish until pile.
The above is merely the preferred embodiments of the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. reaming bit has:
Drill main body, its sidewall is provided with helical blade;
At least one reaming wing, a drill guide upper drill bit main body are provided with and the identical groove of reaming wing quantity, and an end of reaming wing is articulated in the groove through bearing pin, and the reaming wing can rotate around bearing pin, realize regaining and opening;
Seeker, drill main body and reaming wing are provided with the brill tooth;
It is characterized in that: reaming wing and drill main body union end and drill main body and reaming wing point of attachment are the cylindrical-concentric fit structure.
2. according to the said reaming bit of claim 1, it is characterized in that: said reaming wing is in a symmetrical arrangement two.
3. according to the said reaming bit of claim 1, it is characterized in that: said helical blade is the double helix blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104474713A CN102505919A (en) | 2011-12-29 | 2011-12-29 | Bearizing drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104474713A CN102505919A (en) | 2011-12-29 | 2011-12-29 | Bearizing drilling bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102505919A true CN102505919A (en) | 2012-06-20 |
Family
ID=46218047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104474713A Pending CN102505919A (en) | 2011-12-29 | 2011-12-29 | Bearizing drilling bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102505919A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777135A (en) * | 2012-08-02 | 2012-11-14 | 李英成 | Expanding drill and pile forming method |
| CN103291222A (en) * | 2013-05-13 | 2013-09-11 | 山东鸿泰建设集团有限公司 | Reamer bit for building long-screw pile machine |
| CN104863515A (en) * | 2015-06-11 | 2015-08-26 | 鞍山紫竹工程设备制造有限公司 | Rock breaking drill bit applied to hydraulic multifunctional pile driver |
| CN105735903A (en) * | 2016-03-17 | 2016-07-06 | 武汉市创先专利技术服务有限公司 | Drill bit of cemented soil mixing pile drilling rig |
| CN105951748A (en) * | 2016-05-27 | 2016-09-21 | 刘录怀 | Hole expansion pile, construction method and drilling tool of hole expansion pile |
| CN106049463A (en) * | 2016-05-27 | 2016-10-26 | 刘录怀 | Soil-squeezing hole expanding pile and construction method and drilling tool thereof |
| CN106812470A (en) * | 2017-03-09 | 2017-06-09 | 上海工程机械厂有限公司 | A kind of borehole-enlarging drilling tool |
| CN106894765A (en) * | 2017-03-09 | 2017-06-27 | 上海广大基础工程有限公司 | A kind of borehole-enlarging drilling tool |
| CN109024554A (en) * | 2018-06-15 | 2018-12-18 | 青岛理工大学 | The construction method of double high-pressure stirring-spraying pile water-stop curtains |
| CN110469268A (en) * | 2019-09-12 | 2019-11-19 | 天地科技股份有限公司 | Reaming bit and drilling tool |
| CN111101855A (en) * | 2020-03-05 | 2020-05-05 | 浙江大学城市学院 | Low-noise punching and reaming device for pile foundation engineering |
| CN111980576A (en) * | 2020-09-27 | 2020-11-24 | 山河智能装备股份有限公司 | Rock-entering reaming drilling tool |
| CN112593581A (en) * | 2020-11-25 | 2021-04-02 | 广州建筑股份有限公司 | Heel-while-drilling pipe pile sediment formation test system and method capable of achieving pile bottom grouting |
| CN113153161A (en) * | 2021-03-05 | 2021-07-23 | 广州市建筑科学研究院有限公司 | Hard rock cutting drill bit for heel-pipe pile while drilling and construction method |
| CN114016895A (en) * | 2021-11-19 | 2022-02-08 | 国网四川省电力公司达州供电公司 | Modular assembly type drilling machine for forming hole in miniature pile |
| CN114109254A (en) * | 2021-11-19 | 2022-03-01 | 国网四川省电力公司达州供电公司 | Transferring method of modular rotary drilling rig |
| CN114215055A (en) * | 2022-01-07 | 2022-03-22 | 青岛理工大学 | Enlarged head anchor cable/rod construction device and method |
| CN114718464A (en) * | 2022-03-22 | 2022-07-08 | 中国矿业大学 | Primary hole forming device and method for ground stress test |
| CN114960630A (en) * | 2022-05-05 | 2022-08-30 | 中国十七冶集团有限公司 | Change novel stirring stake drill bit that turns to and form variable cross section cement stirring soil pile |
| TWI785483B (en) * | 2021-01-29 | 2022-12-01 | 東明海事工程有限公司 | Reaming bit structure of drilling machine |
| CN115538961A (en) * | 2022-11-30 | 2022-12-30 | 胜利油田龙玺石油工程服务有限责任公司 | Mud collection device for well drilling of vehicle-mounted drilling machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092595U (en) * | 1990-11-28 | 1992-01-08 | 陈满成 | Bits for rock hole-expending |
| US5735360A (en) * | 1996-11-12 | 1998-04-07 | Engstrom; Robert W. | Mining bit |
| JPH1162452A (en) * | 1997-08-14 | 1999-03-05 | Kawasaki Steel Corp | Auger device, and foundation consolidation method |
| CN2612791Y (en) * | 2003-01-29 | 2004-04-21 | 张阳生 | Reaming bit |
| JP2010007400A (en) * | 2008-06-30 | 2010-01-14 | Nippon Concrete Ind Co Ltd | Excavating head |
| CN202451059U (en) * | 2011-12-29 | 2012-09-26 | 山河智能装备股份有限公司 | Hole dilating drill bit |
-
2011
- 2011-12-29 CN CN2011104474713A patent/CN102505919A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092595U (en) * | 1990-11-28 | 1992-01-08 | 陈满成 | Bits for rock hole-expending |
| US5735360A (en) * | 1996-11-12 | 1998-04-07 | Engstrom; Robert W. | Mining bit |
| JPH1162452A (en) * | 1997-08-14 | 1999-03-05 | Kawasaki Steel Corp | Auger device, and foundation consolidation method |
| CN2612791Y (en) * | 2003-01-29 | 2004-04-21 | 张阳生 | Reaming bit |
| JP2010007400A (en) * | 2008-06-30 | 2010-01-14 | Nippon Concrete Ind Co Ltd | Excavating head |
| CN202451059U (en) * | 2011-12-29 | 2012-09-26 | 山河智能装备股份有限公司 | Hole dilating drill bit |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777135A (en) * | 2012-08-02 | 2012-11-14 | 李英成 | Expanding drill and pile forming method |
| CN102777135B (en) * | 2012-08-02 | 2015-12-09 | 李英成 | Reamer and piling method |
| CN103291222A (en) * | 2013-05-13 | 2013-09-11 | 山东鸿泰建设集团有限公司 | Reamer bit for building long-screw pile machine |
| CN104863515A (en) * | 2015-06-11 | 2015-08-26 | 鞍山紫竹工程设备制造有限公司 | Rock breaking drill bit applied to hydraulic multifunctional pile driver |
| CN105735903A (en) * | 2016-03-17 | 2016-07-06 | 武汉市创先专利技术服务有限公司 | Drill bit of cemented soil mixing pile drilling rig |
| CN105951748A (en) * | 2016-05-27 | 2016-09-21 | 刘录怀 | Hole expansion pile, construction method and drilling tool of hole expansion pile |
| CN106049463A (en) * | 2016-05-27 | 2016-10-26 | 刘录怀 | Soil-squeezing hole expanding pile and construction method and drilling tool thereof |
| CN106049463B (en) * | 2016-05-27 | 2018-07-06 | 刘录怀 | The construction method and its drilling tool of a kind of earth-squeezing hole-enlarging stake and the earth-squeezing hole-enlarging stake |
| CN106812470A (en) * | 2017-03-09 | 2017-06-09 | 上海工程机械厂有限公司 | A kind of borehole-enlarging drilling tool |
| CN106894765A (en) * | 2017-03-09 | 2017-06-27 | 上海广大基础工程有限公司 | A kind of borehole-enlarging drilling tool |
| CN109024554A (en) * | 2018-06-15 | 2018-12-18 | 青岛理工大学 | The construction method of double high-pressure stirring-spraying pile water-stop curtains |
| CN110469268A (en) * | 2019-09-12 | 2019-11-19 | 天地科技股份有限公司 | Reaming bit and drilling tool |
| CN111101855A (en) * | 2020-03-05 | 2020-05-05 | 浙江大学城市学院 | Low-noise punching and reaming device for pile foundation engineering |
| CN111980576A (en) * | 2020-09-27 | 2020-11-24 | 山河智能装备股份有限公司 | Rock-entering reaming drilling tool |
| CN112593581A (en) * | 2020-11-25 | 2021-04-02 | 广州建筑股份有限公司 | Heel-while-drilling pipe pile sediment formation test system and method capable of achieving pile bottom grouting |
| TWI785483B (en) * | 2021-01-29 | 2022-12-01 | 東明海事工程有限公司 | Reaming bit structure of drilling machine |
| CN113153161A (en) * | 2021-03-05 | 2021-07-23 | 广州市建筑科学研究院有限公司 | Hard rock cutting drill bit for heel-pipe pile while drilling and construction method |
| CN114016895A (en) * | 2021-11-19 | 2022-02-08 | 国网四川省电力公司达州供电公司 | Modular assembly type drilling machine for forming hole in miniature pile |
| CN114109254A (en) * | 2021-11-19 | 2022-03-01 | 国网四川省电力公司达州供电公司 | Transferring method of modular rotary drilling rig |
| CN114016895B (en) * | 2021-11-19 | 2024-01-09 | 国网四川省电力公司达州供电公司 | Modular assembly type drilling machine for micro pile hole forming |
| CN114109254B (en) * | 2021-11-19 | 2023-11-14 | 国网四川省电力公司达州供电公司 | Transfer method of modularized rotary drilling rig |
| CN114215055B (en) * | 2022-01-07 | 2023-05-09 | 青岛理工大学 | Construction method of enlarged head anchor rope construction device |
| CN114215055A (en) * | 2022-01-07 | 2022-03-22 | 青岛理工大学 | Enlarged head anchor cable/rod construction device and method |
| CN114718464A (en) * | 2022-03-22 | 2022-07-08 | 中国矿业大学 | Primary hole forming device and method for ground stress test |
| CN114960630A (en) * | 2022-05-05 | 2022-08-30 | 中国十七冶集团有限公司 | Change novel stirring stake drill bit that turns to and form variable cross section cement stirring soil pile |
| CN115538961A (en) * | 2022-11-30 | 2022-12-30 | 胜利油田龙玺石油工程服务有限责任公司 | Mud collection device for well drilling of vehicle-mounted drilling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102505919A (en) | Bearizing drilling bit | |
| CN103291222B (en) | Reamer bit for building long-screw pile machine | |
| CN203594367U (en) | Spiral half soil squeezing and dumping drilling tool | |
| CN202451059U (en) | Hole dilating drill bit | |
| CN203175403U (en) | Dry drilling pore-forming under-reaming drill bit of rotary drilling rig | |
| CN104295234B (en) | End stake machine and pile foundation perfusion pile making method are rammed in long spire extruding | |
| CN105781424A (en) | Variable-diameter drilling bit mechanism for drill stem | |
| CN106812470B (en) | A kind of borehole-enlarging drilling tool | |
| CN111535740A (en) | Square pile rotary digging device for one-time pore forming | |
| CN105822234A (en) | Drill rod assembly with drillable expanded bit for piling machine | |
| CN110566136A (en) | Rotary drilling rig and rotary drilling rig | |
| CN203321328U (en) | Reamer bit for construction long screw pile machine | |
| CN202300201U (en) | Combined drill bit | |
| CN104963626A (en) | Long spiral drilling machine used for forming long spiral broaching pile and pile forming method | |
| CN219061519U (en) | Anchor rod pore-forming enlarged bit device | |
| CN87207346U (en) | Rotary drilling machine | |
| CN110952920A (en) | Drilling device for square hole | |
| CN106761416A (en) | A kind of reaming rig | |
| CN216690974U (en) | Drill bit | |
| CN205743717U (en) | Drilling rod diameter changeable drill bit mechanism | |
| CN107217991A (en) | A kind of deep-well reaming hole method and PDC waterpower reamers | |
| CN114753773A (en) | Helical drill bit with cutting teeth with adjustable inclination angle | |
| CN204200136U (en) | Efficient well dressing tool | |
| CN211370318U (en) | Rotary drilling rig and rotary drilling rig | |
| CN210768601U (en) | Eccentric hole diamond compact 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |