CN111270998A - Durable down-the-hole drill bit - Google Patents
Durable down-the-hole drill bit Download PDFInfo
- Publication number
- CN111270998A CN111270998A CN201811477175.6A CN201811477175A CN111270998A CN 111270998 A CN111270998 A CN 111270998A CN 201811477175 A CN201811477175 A CN 201811477175A CN 111270998 A CN111270998 A CN 111270998A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- teeth
- hole
- durable
- hole drill
- 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
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000004576 sand Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 9
- 239000002689 soil Substances 0.000 description 9
- 238000005553 drilling Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
-
- 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
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 durable down-the-hole drill bit, which comprises a drill bit and a drill tail, wherein the drill bit and the drill tail are both in cylindrical structures, and the diameter of the drill bit is larger than that of the drill tail. When using, utilize sharp-pointed side tooth to draw out the line along drill bit annular on the pore wall, make the gravel and sand or the ground all around of pore wall plane more pine by the side tooth, then will already plane more loose gravel and sand or ground through utilizing thick rectangular block on the pore wall and spade, reach reaming effect, because the rectangular block provides powerful supplementary for the side tooth, reduced the working strength of side tooth in a large number, consequently, the difficult rupture of side tooth, the down-the-hole drill bit is also more durable.
Description
Technical Field
The invention relates to a drill bit, in particular to a durable down-the-hole drill bit.
Background
The down-the-hole drill bit is a drill bit for drilling holes, and generally comprises side teeth and middle teeth, wherein the middle teeth are used for diving, the side teeth are used for ensuring the aperture, and when the down-the-hole drill bit is used, the side teeth are easy to break off under the continuous use because the acting force applied to the side teeth is vertical to the length direction of the side teeth, so that the drill bit is scrapped.
Disclosure of Invention
It is an object of the present invention to provide a durable down-the-hole drill bit that solves the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a durable down-the-hole drill bit, includes drill bit and bores the tail, and the two is cylindric structure and the diameter of the former is greater than the latter, it connects to bore the tail the center department of the bottom of drill bit, establish a plurality of middle teeth on the top surface of drill bit, the multirow side tooth group of vertical range is established to one side of the lateral wall of drill bit, and the multirow rectangle piece group of vertical range is established to the opposite side.
Preferably, for the durable down-the-hole drill bit, five rows of side tooth groups which are vertically arranged are arranged on one side of the side wall of the drill bit, and five rows of rectangular block groups which are vertically arranged are arranged on the other side of the side wall of the drill bit.
Preferably, for the durable down-the-hole drill bit, each row of the side tooth sets comprises five side teeth which are vertically distributed at equal intervals, and each row of the rectangular block sets comprises two rectangular blocks which are arranged at intervals up and down.
Preferably, for the durable down-the-hole drill bit, five of the side teeth of each adjacent two rows of side tooth sets are offset from each other.
Preferably, for the durable down-the-hole drill, the height of the protruding rectangular blocks in the five rows of the rectangular block groups on the drill bit surface is increased row by row, and the protruding height of the rectangular block with the highest protruding height is the same as the protruding height of the side teeth on the drill bit surface.
Preferably, for the durable down-the-hole drill, the middle teeth and the side teeth are both alloy teeth, and the rectangular blocks are alloy blocks.
Preferably, for the durable down-the-hole drill bit, an inverted frustum-shaped drainage block is fixed at the bottom of the drill bit, and a columnar hole for the drill tail to pass through is formed in the middle of the drainage block.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, when the down-the-hole drill bit is used for reaming, sharp side teeth are utilized to mark lines along the circumferential direction of the drill bit on the hole wall, so that sand or rock soil around the hole wall is planed loose by the side teeth, and then thick rectangular blocks are utilized to spade the sand or rock soil planed loose on the hole wall, thereby achieving the effect of reaming.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the drill bit of the present invention;
FIG. 3 is a side view of the drill bit of the present invention on the side of the side teeth;
figure 4 is a side view of the drill bit of the present invention on one side of a rectangular block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a durable down-the-hole drill bit, includes drill bit 1 and bores tail 2, and the two is cylindric structure and the diameter of the former is greater than the latter, bores tail 2 and connects the center department in the bottom of drill bit 1, establishes a plurality of middle teeth 3 on the top surface of drill bit 1, and the multirow side tooth group of vertical arrangement is established to one side of the lateral wall of drill bit 1, and the multirow rectangle piece group of vertical arrangement is established to the opposite side. The drill tail 2 is used for connecting a drilling tool, and the middle tooth 3 is used for submerging during drilling.
In another embodiment, five rows of side tooth groups are vertically arranged on one side of the side wall of the drill bit 1, and five rows of rectangular block groups are vertically arranged on the other side.
In another embodiment, each row of side tooth groups comprises five side teeth 4 which are vertically distributed at equal intervals, and each row of rectangular block groups comprises two rectangular blocks 5 which are arranged at intervals up and down.
In another embodiment, five side teeth 4 in each two adjacent rows of side tooth groups are arranged in a staggered manner. The side teeth 4 are arranged in a staggered mode, when hole expansion is conducted, the side teeth 4 act on sand or rock soil of the hole wall, grains are planed out along the annular direction, the staggered side teeth 4 can take into consideration of gaps among the sand or rock soil, and therefore the sand or rock soil on the hole wall is planed to be more fluffy.
In another embodiment, the height of the rectangular blocks 5 in the five rows of rectangular block groups projected on the surface of the drill bit 1 is increased row by row, and the height of the rectangular block 5 projected the highest is the same as the height of the side tooth 4 projected on the surface of the drill bit 1. When the drill bit 1 rotates, the drill bit rotates according to the direction from the rectangular block 5 with higher height to the rectangular block 5 with lower height, so the rectangular block 5 with the lowest protruding height acts on sand or rock soil of the hole wall firstly, a layer of the hole wall is stripped, then the rectangular blocks 5 with higher height act on the hole wall gradually in sequence, one layer of the hole wall is stripped, and finally a complete hole is expanded.
In another embodiment, the middle teeth 3 and the side teeth 4 are both alloy teeth, and the rectangular blocks 5 are alloy blocks.
In another embodiment, an inverted frustum-shaped drainage block 6 is fixed at the bottom of the drill bit 1, and a columnar hole for the drill tail 2 to pass through is formed in the middle of the drainage block 6. In actual operation, the drill bit 1 is downward, so that the existence of the diversion blocks 6 can avoid the accumulation of sand or rock soil on the contact surface of the drill bit and the drill tail, thereby avoiding unnecessary power consumption of the drilling tool.
In the invention, when the down-the-hole drill bit is used for reaming, sharp side teeth 4 are utilized to mark lines along the circumferential direction of the drill bit on the hole wall, so that sand or rock soil around the hole wall is planed loose by the side teeth, and then thick rectangular blocks 5 are utilized to spade the sand or rock soil planed loose on the hole wall, thereby achieving the reaming effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a durable down-the-hole drill bit, includes drill bit and bores the tail, and the two is cylindric structure and the diameter of the former is greater than the latter, its characterized in that, it connects to bore the tail the center department of the bottom of drill bit, establish a plurality of middle teeth on the top surface of drill bit, the multirow side tooth group of vertical range is established to one side of the lateral wall of drill bit, and the multirow rectangular block group of vertical range is established to the opposite side.
2. The durable down-the-hole drill bit of claim 1, wherein the side wall of the bit has five vertically aligned rows of side sets of teeth on one side and five vertically aligned rectangular sets of sets on the other side.
3. The durable down-the-hole drill bit of claim 2, wherein each row of the set of side teeth comprises five side teeth spaced vertically at equal intervals, and each row of the set of rectangular blocks comprises two rectangular blocks spaced above and below.
4. A durable down-the-hole drill bit as claimed in claim 3, wherein five of the side teeth of each adjacent two rows of side tooth sets are offset from each other.
5. The durable down-the-hole drill bit of claim 4, wherein the height of the rectangular blocks in the set of five rows of rectangular blocks at the bit face projection is increased row by row, and the height of the rectangular block projecting the highest is the same as the height of the side tooth at the bit face projection.
6. The durable down-the-hole drill bit of claim 2, wherein the center and side teeth are both alloy teeth and the rectangular block is an alloy block.
7. The durable down-the-hole drill bit of claim 1, wherein the bottom of the drill bit is fixed with an inverted frustum-shaped drainage block, and a columnar hole for the drill tail to pass through is arranged in the middle of the drainage block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477175.6A CN111270998A (en) | 2018-12-05 | 2018-12-05 | Durable down-the-hole drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477175.6A CN111270998A (en) | 2018-12-05 | 2018-12-05 | Durable down-the-hole drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111270998A true CN111270998A (en) | 2020-06-12 |
Family
ID=70996708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477175.6A Pending CN111270998A (en) | 2018-12-05 | 2018-12-05 | Durable down-the-hole drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111270998A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2756803Y (en) * | 2004-06-18 | 2006-02-08 | 宜春飞龙钻头有限公司 | Single roller bit |
| CN201874471U (en) * | 2010-11-26 | 2011-06-22 | 李长权 | High wear-resisting diameter-keeping tooth-arranging PDC (Polycrystalline Diamond Compact) drill bit |
| CN203476212U (en) * | 2013-09-23 | 2014-03-12 | 胜利油田盛辉石油技术开发有限责任公司 | Combined gauge protection drill bit |
| CN203867471U (en) * | 2014-06-05 | 2014-10-08 | 黄河科技学院 | Gauge protection down-the-hole drill bit |
| CN105422009A (en) * | 2015-12-08 | 2016-03-23 | 大庆天瑞机械制造有限公司 | Polycrystalline diamond compact bit with four blades |
| CN106481345A (en) * | 2015-08-26 | 2017-03-08 | 韩国生产技术研究院 | Staving press and the expanding method using which |
| CN206888919U (en) * | 2017-06-07 | 2018-01-16 | 王之昱 | Drill bit device for mine operation |
| CN208122767U (en) * | 2018-04-28 | 2018-11-20 | 四川奥格特金刚石钻头有限公司 | A kind of active radius retention pad structure of diamond bit |
-
2018
- 2018-12-05 CN CN201811477175.6A patent/CN111270998A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2756803Y (en) * | 2004-06-18 | 2006-02-08 | 宜春飞龙钻头有限公司 | Single roller bit |
| CN201874471U (en) * | 2010-11-26 | 2011-06-22 | 李长权 | High wear-resisting diameter-keeping tooth-arranging PDC (Polycrystalline Diamond Compact) drill bit |
| CN203476212U (en) * | 2013-09-23 | 2014-03-12 | 胜利油田盛辉石油技术开发有限责任公司 | Combined gauge protection drill bit |
| CN203867471U (en) * | 2014-06-05 | 2014-10-08 | 黄河科技学院 | Gauge protection down-the-hole drill bit |
| CN106481345A (en) * | 2015-08-26 | 2017-03-08 | 韩国生产技术研究院 | Staving press and the expanding method using which |
| CN105422009A (en) * | 2015-12-08 | 2016-03-23 | 大庆天瑞机械制造有限公司 | Polycrystalline diamond compact bit with four blades |
| CN206888919U (en) * | 2017-06-07 | 2018-01-16 | 王之昱 | Drill bit device for mine operation |
| CN208122767U (en) * | 2018-04-28 | 2018-11-20 | 四川奥格特金刚石钻头有限公司 | A kind of active radius retention pad structure of diamond bit |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200612 |