CN102226376B - Interlocking butt joint drill bit - Google Patents
Interlocking butt joint drill bit Download PDFInfo
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- CN102226376B CN102226376B CN 201110144547 CN201110144547A CN102226376B CN 102226376 B CN102226376 B CN 102226376B CN 201110144547 CN201110144547 CN 201110144547 CN 201110144547 A CN201110144547 A CN 201110144547A CN 102226376 B CN102226376 B CN 102226376B
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- conehead
- butt joint
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Abstract
The invention relates to an interlocking butt joint drill bit which comprises two parts, namely a conical surface concave edge locking drill bit and a conical head convex edge locking drill bit. A connecting thread is arranged at one end of the conical surface concave edge locking drill bit, a drill bit body of the conical surface concave edge locking drill bit is arranged at the other end of theconical surface concave edge locking drill bit, the drill bit body comprises three L-shaped scraper blades which are uniformly distributed around a central shaft, and a conical surface concave edge guide groove is arranged at the central shaft; and the conical head convex edge locking drill bit and the conical surface concave edge locking drill bit are in corresponding structure configuration, and a conical head convex edge guide body is arranged at the central shaft. After the conical surface concave edge locking drill bit is in butt joint with the conical head convex edge locking drill bit,the conical head convex edge guide body is embedded into the conical surface concave edge guide groove, and the two groups of scraper blades are buckled and locked in a staggered manner. According tothe unique design of the invention, when the two groups of drill bits are applied to long-distance horizontal directional drilling construction together, after the drill bits meet in a butt joint region, drill rods at two ends of the butt joint drill bit are connected together through butt joint and locking of the two groups of drill bits for getting out from soil by traction, and the traversing of a guide hole is further completed.
Description
Technical field
The present invention relates to a kind of interlocking-type butt joint drill bit, especially a kind of construction tool that is applicable to non-excavation type boring under the over long distances.
Background technology
Horizontal directional drill is applicable to the drilling construction that carries out under the influence of factors such as extra long distance, complicated geographical geological conditions to the technology of wearing.At present, the drill bit that the technology of wearing is adopted is one-sided drill bit, and the drill bit at the two ends that namely go out, bury is separate, carries out directional drilling in opposite directions, realizes that pilot hole passes through, and finishes the pilot hole butt joint when arriving the butt joint zone.Under soft stratum or the unequal complex geological condition of soft or hard, grow the pilot hole butt joint of distance, the shortcoming that adopts drill bit in the market to exist is: even if adopt one-sided drill bit to realize the smooth butt joint that goes out, buries the two ends pilot hole in the butt joint zone, because the stratum is soft, the hole very easily is out of shape, and one-sided drill bit also is difficult to be unearthed smoothly along the end pilot hole that drill bit bores that is unearthed.
Summary of the invention
The objective of the invention is to overcome the defective that drill bit in the market exists, provide a kind of and be applicable to extra long distance, can under the complicated geological situation of soft stratum or soft or hard inequality, carry out the interlocking-type butt joint drill bit of horizontal directional drill construction, it can fasten by the rotation of conehead flange locking drill bit and the recessed edge locking of conical surface drill bit, realize the connection of both sides drilling rod, to dock the drill bit traction then and be unearthed, and finish the butt joint of pilot hole smoothly and pass through.
Problem of the present invention realizes with following technical proposals:
A kind of interlocking-type butt joint drill bit comprises the conical surface recessed edge locking drill bit and conehead flange locking drill bit two parts in the formation.The recessed edge locking of described conical surface drill bit one end is the drill bit connecting thread, and the other end is the recessed edge locking of conical surface drill bit bit body, and bit body is uniform by three " L " type scraper loop central axiss, and central axis arranges the recessed edge gathering sill of the conical surface; Described conehead flange locking drill bit one end is the drill bit connecting thread, and the other end is conehead flange locking drill bit bit body, and bit body is uniform by three " L " type scraper loop central axiss, and central axis arranges conehead flange guide way.After the conical surface recessed edge locking drill bit and the butt joint of conehead flange locking drill bit, conehead flange guide way embeds the recessed edge gathering sill of the conical surface, by the staggered locking that fastens of two groups of wings.
Above-mentioned interlocking-type butt joint drill bit, the described conical surface recessed edge locking drill bit and conehead flange locking drill bit all have nozzle.
Above-mentioned interlocking-type butt joint drill bit, equal tungsten carbide button grain on the bit body of the described conical surface recessed edge locking drill bit and conehead flange locking drill bit.
The invention has the beneficial effects as follows: by structure design of the present invention, when the conical surface recessed edge locking drill bit and conehead flange locking drill bit are applied in the horizontal directional drill construction of growing distance, soft stratum together, after in the butt joint zone, meeting and discussing, butt joint locking by two groups of drill bits, the drilling rod at butt joint drill bit two ends is linked together, traction is unearthed, and finishes pilot hole and passes through.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the structure chart of the recessed edge locking of conical surface drill bit;
Fig. 2 is the structure chart of conehead flange locking drill bit;
Fig. 3 is the outline drawing behind conehead flange locking drill bit and the recessed edge locking of the conical surface drill bit butt joint locking;
Fig. 4, Fig. 5 are respectively the conical surface recessed edge locking bit nozzle and conehead flange locking bit nozzle structural representation.
Each label is among the figure: 1, the recessed edge locking of conical surface drill bit, 2, the recessed edge locking of conical surface bit sheet, 3, the recessed edge gathering sill of the conical surface, 4, conehead flange guide way, 5, conehead flange locking bit sheet, 6, conehead flange locking drill bit, 7, carbide alloy grain, 8, the recessed edge locking of conical surface drill bit connecting thread, 9, conehead flange locking drill bit connecting thread, 10, the recessed edge locking of conical surface bit nozzle, 11, conehead flange locking bit nozzle.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, the present invention comprises the recessed edge locking of conical surface drill bit 1 and conehead flange locking drill bit 6 two parts in constituting.The recessed edge locking of described conical surface drill bit 1 one ends are the recessed edge locking of conical surface drill bit connecting threads 8, and the other end is the recessed edge locking of conical surface drill bit bit body, and bit body is uniform by three " L " type wings, 2 ring central axiss, and central axis arranges the recessed edge gathering sill 3 of the conical surface; Described conehead flange locking drill bit 6 one ends are conehead flange locking drill bit connecting threads 9, and the other end is conehead flange locking drill bit bit body, and bit body is uniform by three " L " type wings, 5 ring central axiss, and central axis arranges conehead flange guide way 4.After the recessed edge locking of conical surface drill bit 1 and 6 butt joints of conehead flange locking drill bit, conehead flange guide way 4 embeds the recessed edge gathering sill 3 of the conical surface, the recessed edge locking of conical surface bit sheet 2 and the conehead flange locking bit sheet 5 staggered lockings that fasten.
Tungsten carbide button's grain 7 on the bit body surface of the recessed edge locking of conical surface drill bit 1 and conehead flange locking drill bit 6 can be holed at hard soil layer or rock.
Referring to Fig. 1, Fig. 2, Fig. 3, when the recessed edge locking of the conical surface drill bit 1 during the present invention constitutes and conehead flange locking drill bit 6 each part work independently and common drill bit-like seemingly, be installed in by connecting thread above the MTR of drilling rod front end, turn round broken layer of sand, mud, mud stone, rock etc.When two parts are applied in the pilot hole butt joint construction on soft stratum of long distance together, embed the recessed edge gathering sill 3 of the conical surfaces by rig drive out, the bury recessed edge locking of the conical surface drill bit 1 at two ends and conehead flange locking drill bit 6 by conehead flange guide way 4, finish butt joint, be rotatablely fastened in then together, be fastenedly connected, realize locking, so just can smoothly the traction of butt joint drill bit be unearthed, finish the perforation of pilot hole.
Claims (3)
1. an interlocking-type butt joint drill bit is characterized in that, comprises the recessed edge locking of conical surface drill bit (1) and conehead flange locking drill bit (6) two parts in the formation; The recessed edge locking of described conical surface drill bit (1) one end is the recessed edge locking of conical surface drill bit connecting thread (8), the other end is the recessed edge locking of conical surface drill bit bit body, bit body is uniform by three " L " type wings (2) ring central axis, and central axis arranges the recessed edge gathering sill of the conical surface (3); Described conehead flange locking drill bit (6) one ends are conehead flange locking drill bit connecting threads (9), the other end is conehead flange locking drill bit bit body, bit body is uniform by three " L " type wings (5) ring central axis, and central axis arranges conehead flange guide way (4); The recessed edge locking of conical surface drill bit (1) and conehead flange locking drill bit (6) are when being in docking location, conehead flange guide way (4) namely embeds the recessed edge gathering sill of the conical surface (3), the recessed edge locking of conical surface bit sheet (2) and the staggered locking that fastens of conehead flange locking bit sheet (5).
2. interlocking-type butt joint drill bit according to claim 1 is characterized in that the recessed edge locking of described conical surface drill bit (1) and conehead flange locking drill bit (6) have nozzle respectively.
3. interlocking-type butt joint drill bit according to claim 1 and 2 is characterized in that, equal tungsten carbide button's grain (7) on the bit body of the recessed edge locking of described conical surface drill bit (1) and conehead flange locking drill bit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144547 CN102226376B (en) | 2011-05-31 | 2011-05-31 | Interlocking butt joint drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144547 CN102226376B (en) | 2011-05-31 | 2011-05-31 | Interlocking butt joint drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102226376A CN102226376A (en) | 2011-10-26 |
| CN102226376B true CN102226376B (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110144547 Active CN102226376B (en) | 2011-05-31 | 2011-05-31 | Interlocking butt joint drill bit |
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| Country | Link |
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| CN (1) | CN102226376B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178867A (en) * | 2015-09-14 | 2015-12-23 | 河海大学常州校区 | Drilling bit of excavator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865042B (en) * | 2012-09-05 | 2015-08-19 | 四川圆通建设有限公司 | A kind of horizontal directional penetration construction drill |
| US10024105B2 (en) * | 2015-02-25 | 2018-07-17 | Radius Hdd Direct, Llc | Rock bit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE512383C3 (en) * | 1997-08-08 | 2000-04-03 | Sandvik Ab | Drilling tools for drilling a haul in front of a feed rudder retaining means and base elements for use in the drilling tool |
| FI115661B (en) * | 2002-12-23 | 2005-06-15 | Robit Rocktools Ltd | A bit assembly |
| US20050039952A1 (en) * | 2003-08-20 | 2005-02-24 | Hill John L. | Drilling apparatus, method, and system |
| US20100288563A1 (en) * | 2009-05-14 | 2010-11-18 | Smith Redd H | Methods of use of particulate materials in conjunction with braze alloys and resulting structures |
| CN201581813U (en) * | 2009-12-04 | 2010-09-15 | 北京建研机械科技有限公司 | Soft soil foundation multifunctional helical bolt drill bit |
| CN202100203U (en) * | 2011-05-31 | 2012-01-04 | 廊坊华元机电工程有限公司 | Interlock type butt joint drill |
-
2011
- 2011-05-31 CN CN 201110144547 patent/CN102226376B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178867A (en) * | 2015-09-14 | 2015-12-23 | 河海大学常州校区 | Drilling bit of excavator |
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| Publication number | Publication date |
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| CN102226376A (en) | 2011-10-26 |
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Address after: 065001 No. 96, expressway approach road, Langfang City, Hebei Province Patentee after: Hebei Huayuan science and Industry Co.,Ltd. Address before: 065001 No. 96, expressway approach road, Langfang City, Hebei Province Patentee before: LANGFANG HUAYUAN MECHANICAL AND ELECTRICAL ENGINEERING CO.,LTD. |
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