CN105422011A - Efficient compound piece drill bit structure - Google Patents
Efficient compound piece drill bit structure Download PDFInfo
- Publication number
- CN105422011A CN105422011A CN201510857029.6A CN201510857029A CN105422011A CN 105422011 A CN105422011 A CN 105422011A CN 201510857029 A CN201510857029 A CN 201510857029A CN 105422011 A CN105422011 A CN 105422011A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- composite sheet
- main body
- drill
- compound piece
- 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
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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- 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
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
- E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
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 relates to an efficient compound piece drill bit structure which comprises a drill bit installation base and a drill bit body. Compound piece components are arranged at the front end of the drill bit body. The compound piece components each comprise a welding base and a compound piece. The compound piece components form inner circles and outer circles on the end face of the drill bit body. The compound piece components of each circle are arranged circumferentially at intervals. The compound piece components on the outermost circle are located on the same circumference. The compound piece components on each inner circle are located on the inner side and the outer side of the corresponding circumference in a staggered mode. The compound piece components from the inner circle to the outer circle form three arc-shaped curve structures. Water guide holes and a drain ditch which are symmetrical about the center of the drill bit body are formed in the drill bit body. The water guide holes are communicated with the outer circumference of the drill bit body through the drain ditch. The water guide holes are symmetrical about the center of the drill bit body and located in the inner wrapping areas of the compound piece components of the arc-shaped curve structures. The central axes of the water guide holes incline towards the central axis of the drill bit body, and the inclined angle of the water guide holes ranges from 12 degrees to 25 degrees.
Description
Technical field
The present invention relates to technical field of geological exploration, particularly drill bit.
Background technology
Drill bit is equipped with in geological drilling its front end of drilling tool used, in order to improve the hardness of drill bit, adopts diamond compact bit at present more, namely installs diamond compact in the front end of drill bit.In existing diamond compact bit, the structural configuration of diamond compact is reasonable not, cause drill bit to drill through efficiency lower.
Summary of the invention
The applicant, for the above-mentioned shortcoming of prior art, carries out studying and improving, and provides a kind of high efficiency composition sheet drill bit structure, compares traditional compact bit, substantially increase and drill through efficiency.
In order to solve the problem, the present invention adopts following scheme:
A kind of high efficiency composition sheet drill bit structure, comprise drill-bit installing seat and drill main body, the front end of drill main body is provided with composite sheet assembly, composite sheet assembly comprises welding base and composite sheet, described composite sheet assembly forms inside and outside multi-turn in the end face of drill main body, the composite sheet assembly of each circle is circumferentially arranged at interval, the composite sheet assembly of outmost turns is on the circle of same place, the composite sheet assembly staggering of inner ring is positioned at the inside and outside both sides of corresponding place circle, and the composite sheet component integration from inner ring to outer ring is three groups of arc curve structures; Described drill main body is also provided with the water-guiding hole be arranged symmetrically with around its center and drainage channels, and water-guiding hole is communicated with drill main body outer peripheral face by drainage channels; Water-guiding hole is arranged around the Central Symmetry of drill main body and is laid respectively at and surrounds in district in the composite sheet assembly of arc curve structure, and the inclined of the relative drill main body of central axis of described water-guiding hole is arranged, and the scope at its angle of slope is 12-25 °.
Further improvement as technique scheme:
The side face of described drill main body is with around its center arrangement and outwardly boss, and the side of described boss is inlaid with alloy sheet.
The outer end outlet opening of described drainage channels is between adjacent described boss.
The cutting face, end of described drainage channels laminating composite sheet.
Angular range between the central axis of composite sheet assembly and the tangent line of its place circle is 8-12 °.
Technique effect of the present invention is:
In the present invention, the end of drill bit is provided with many group composite sheet assemblies, and composite sheet assembly adopts staggered Internal and external cycle to arrange, its connection and reasonable arrangement, and form all standing of bit face, what substantially increase drill bit drills through efficiency; Formed between the composite sheet assembly of three groups of S type structures and curl up shape, it is consistent with the direction of rotation of drill bit that it curls up direction, reduce to drill through resistance, thus raising drills through efficiency further.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure diagram of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is lateral view of the present invention.
In figure: 1, drill-bit installing seat; 2, drill main body; 3, composite sheet assembly; 30, welding base; 31, composite sheet; 310, cutting face, end; 4, water-guiding hole; 5, drainage channels; 6, alloy sheet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, the high efficiency composition sheet drill bit structure of the present embodiment, comprise drill-bit installing seat 1 and drill main body 2, the front end of drill main body 2 is provided with composite sheet assembly 3, composite sheet assembly comprises welding base 30 and composite sheet 31, composite sheet assembly 3 forms inside and outside multi-turn in the end face of drill main body 2, the composite sheet assembly 3 of each circle is circumferentially arranged at interval, the composite sheet assembly 3 of outmost turns is on the circle of same place, the composite sheet assembly 3 of inner ring staggers and is positioned at the inside and outside both sides of corresponding place circle, composite sheet assembly 31 entirety from inner ring to outer ring is in three groups of arc curve structures, drill main body 2 is also provided with the water-guiding hole 4 and drainage channels 5 that are arranged symmetrically with around its center, water-guiding hole 4 is communicated with drill main body 2 outer peripheral face by drainage channels 5, water-guiding hole 4 is arranged around the Central Symmetry of drill main body 2 and is laid respectively at and surrounds in district in the composite sheet assembly 31 of arc curve structure, the inclined of the relative drill main body 2 of central axis of water-guiding hole 4 is arranged, the scope at its angle of slope is 12-25 °, when ensureing bit operation, shaft bottom smooth in water flow, reduce resistance, improve and drill through efficiency.
In the present invention, composite sheet assembly is inside and outside multi-turn and is staggeredly arranged, and during bit, the covering of composite sheet assembly is whole drills through end face, and it is high that it drills through efficiency; Formed between the composite sheet assembly of three groups of S type structures and curl up shape, it is consistent with the direction of rotation of drill bit that it curls up direction, reduce to drill through resistance, thus raising drills through efficiency further.
The side face of drill main body 2 is with around its center arrangement and outwardly boss, and the side of boss is inlaid with alloy sheet 6, and alloy sheet 6, for drill bit protection, prevents drill bit from wearing and tearing in boring procedure, ensures that its bore diameter is constant.
As shown in Figure 2 and Figure 3, the outer end outlet opening of drainage channels 5 is between adjacent boss, and drainage channels 5 is fitted the cutting face, end 310 of composite sheet 31, is easy to discharge the chip after drilling through.
Drill through efficiency for improving further, the angular range between the central axis of composite sheet assembly 3 and the tangent line of its place circle is 8-12 °.
Above illustrated embodiment is better embodiment of the present invention, only be used for conveniently the present invention being described, not any pro forma restriction is done to the present invention, have in any art and usually know the knowledgeable, if do not depart from the present invention carry in the scope of technical characteristic, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and do not depart from technical characteristic content of the present invention, all still belong in the scope of the technology of the present invention feature.
Claims (5)
1. a high efficiency composition sheet drill bit structure, comprise drill-bit installing seat (1) and drill main body (2), the front end of drill main body (2) is provided with composite sheet assembly (3), composite sheet assembly comprises welding base (30) and composite sheet (31), it is characterized in that: described composite sheet assembly (3) forms inside and outside multi-turn in the end face of drill main body (2), the composite sheet assembly (3) of each circle is circumferentially arranged at interval, the composite sheet assembly (3) of outmost turns is on the circle of same place, the composite sheet assembly (3) of inner ring staggers and is positioned at the inside and outside both sides of corresponding place circle, composite sheet assembly (31) entirety from inner ring to outer ring is in three groups of arc curve structures, described drill main body (2) is also provided with the water-guiding hole (4) and drainage channels (5) that are arranged symmetrically with around its center, water-guiding hole (4) is communicated with drill main body (2) outer peripheral face by drainage channels (5), water-guiding hole (4) is arranged around the Central Symmetry of drill main body (2) and lays respectively in the interior encirclement district of the composite sheet assembly (31) of arc curve structure, the inclined of the relative drill main body of central axis (2) of described water-guiding hole (4) is arranged, and the scope at its angle of slope is 12-25 °.
2. according to high efficiency composition sheet drill bit structure according to claim 1, it is characterized in that: the side face of described drill main body (2) is with around its center arrangement and outwardly boss, and the side of described boss is inlaid with alloy sheet (6).
3. according to high efficiency composition sheet drill bit structure according to claim 2, it is characterized in that: the outer end outlet opening of described drainage channels (5) is between adjacent described boss.
4. according to high efficiency composition sheet drill bit structure according to claim 1, it is characterized in that: the cutting face, end (310) of described drainage channels (5) laminating composite sheet (31).
5. according to high efficiency composition sheet drill bit structure according to claim 1, it is characterized in that: the angular range between the central axis of composite sheet assembly (3) and the tangent line of its place circle is 8-12 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510857029.6A CN105422011A (en) | 2015-11-30 | 2015-11-30 | Efficient compound piece drill bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510857029.6A CN105422011A (en) | 2015-11-30 | 2015-11-30 | Efficient compound piece drill bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422011A true CN105422011A (en) | 2016-03-23 |
Family
ID=55500507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510857029.6A Pending CN105422011A (en) | 2015-11-30 | 2015-11-30 | Efficient compound piece drill bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422011A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429755A (en) * | 1981-02-25 | 1984-02-07 | Williamson Kirk E | Drill with polycrystalline diamond drill blanks for soft, medium-hard and hard formations |
| US20020112894A1 (en) * | 2001-01-22 | 2002-08-22 | Caraway Douglas B. | Bit for horizontal boring |
| CN202755900U (en) * | 2012-08-06 | 2013-02-27 | 安徽皖晶钻探科技发展有限公司 | Impregnated diamond clad sheet drill |
| CN104508231A (en) * | 2012-05-23 | 2015-04-08 | 哈利伯顿能源服务公司 | System and method for improving stability of drilling tools |
| CN205117220U (en) * | 2015-10-31 | 2016-03-30 | 无锡中地钻探装备有限公司 | High -efficient compact bit structure |
-
2015
- 2015-11-30 CN CN201510857029.6A patent/CN105422011A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429755A (en) * | 1981-02-25 | 1984-02-07 | Williamson Kirk E | Drill with polycrystalline diamond drill blanks for soft, medium-hard and hard formations |
| US20020112894A1 (en) * | 2001-01-22 | 2002-08-22 | Caraway Douglas B. | Bit for horizontal boring |
| CN104508231A (en) * | 2012-05-23 | 2015-04-08 | 哈利伯顿能源服务公司 | System and method for improving stability of drilling tools |
| CN202755900U (en) * | 2012-08-06 | 2013-02-27 | 安徽皖晶钻探科技发展有限公司 | Impregnated diamond clad sheet drill |
| CN205117220U (en) * | 2015-10-31 | 2016-03-30 | 无锡中地钻探装备有限公司 | High -efficient compact bit structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |