CN104594805A - Tri-cone bit with strong protection palm tips - Google Patents
Tri-cone bit with strong protection palm tips Download PDFInfo
- Publication number
- CN104594805A CN104594805A CN201510000592.1A CN201510000592A CN104594805A CN 104594805 A CN104594805 A CN 104594805A CN 201510000592 A CN201510000592 A CN 201510000592A CN 104594805 A CN104594805 A CN 104594805A
- Authority
- CN
- China
- Prior art keywords
- palm
- drill bit
- bit
- tips
- groove structure
- 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
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000005728 strengthening Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005065 mining Methods 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
- E21B10/08—Roller 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
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 a tri-cone drill bit with strong protection palm tips. The tri-cone drill bit comprises three cones and palms, wherein the three cones are respectively arranged on the three palms, the three palms are assembled and welded into a whole, the palm backs of the palms are paved and welded with tungsten carbide reinforcing layers, welding groove structures distributed along the appearance of the palm tips are arranged on the palm tips of the palms, and the tungsten carbide reinforcing layers are paved and welded in the grooves of the welding groove structure. The the palm tips of the palm designs the welding groove structure, so the functions of the original tri-cone drill bit for the mine are realized, after the tungsten carbide reinforcing layers welded on the palm back fall off due to abrasion, the hard metal reinforcing layers with the welding groove structure can further protect the palm tips, the service life of a drill bit bearing is effectively prolonged, and the work life of the drill bit is prolonged. The problem of early stage damage of the drill bit due to abrasion of the palm back welding layers is solved, the drill bit has the dual functions, and the drill bit gauge protection capability and the drill bit bearing service life prolonging capability are realized.
Description
Technical field
The present invention relates to the tricone bit of oil exploration, mining, particularly relate to a kind of tricone bit with strength protection shirttail.
Background technology
At present, the boring tricone bit in mine is contained on three bit legs by three gear wheels respectively, three bit leg assembly weldings form tricone bit together, the operating principle of drill bit is: tricone bit is connected with drilling rod by connecting thread, rig drives drilling rod rotate and apply axial compression, tricone bit rotates drive three gear wheels and rotates, and the hard-metal insert on three gear wheels produces rock and impacts and broken formation.For meeting user demand, the bit leg palm back of the body adopts tungsten carbide button to carry out strengthening and shirttail surfacing, bit leg side surfacing tungsten carbide strengthening layer, although the wearing and tearing of the bit leg palm back of the body effectively can be ensured, but because shirttail position is weaker and bear axial impact force and landwaste erosion, shirttail wearing and tearing are very fast, have impact on the bulk life time of drill bit.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, a kind of tricone bit with strength protection shirttail is provided, after being intended to solve the wearing and tearing of palm back of the body surfacing layer, cause the problem of drill bit earlier period damage.
Object of the present invention is achieved through the following technical solutions:
There is the tricone bit of strength protection shirttail; comprise gear wheel and bit leg; three gear wheels are contained on three bit legs respectively; three bit leg assembly weldings are in one; bit leg palm back of the body surfacing tungsten carbide strengthening layer; feature is: described bit leg shirttail is provided with the surfacing groove structure along the distribution of shirttail profile, and in the groove of surfacing groove structure, surfacing has tungsten carbide strengthening layer.
Further, the above-mentioned tricone bit with strength protection shirttail, wherein, the arc angle of the Origin And Destination formation of described surfacing groove structure is at 100 ° ~ 180 °.
Further, the above-mentioned tricone bit with strength protection shirttail, wherein, the groove depth of described surfacing groove structure is 2 ~ 5mm.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progress are mainly reflected in:
Bit leg shirttail design surfacing groove structure; not only there is the function of original blasthole tricone rock bit; and after the wearing and tearing of palm back of the body surfacing tungsten carbide strengthening layer come off; this hard metal strengthening layer with surfacing groove structure can protect shirttail further; effective prolongation bit bearing service time, the working life of drill bit is improved.Cause the problem of drill bit earlier period damage after solving the wearing and tearing of palm back of the body surfacing layer, drill bit has dual-use function, the gauge ability namely with drill bit and the ability extending bit bearing application life, makes the operating efficiency of drill bit improve 10 ~ 15%.Function is remarkable, is the new design of a practicality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: the structural representation of tricone bit;
Fig. 2: schematic cross-section of the present invention;
The A-A cross-sectional schematic of Fig. 3: Fig. 2.
Detailed description of the invention
As shown in Figure 1; there is the tricone bit of strength protection shirttail; comprise gear wheel and bit leg; three gear wheels 1 are contained on three bit legs 2 respectively; three bit leg assembly weldings are in one, and as Fig. 2, Fig. 3, the bit leg palm carries on the back surfacing tungsten carbide strengthening layer 3; bit leg shirttail is provided with the surfacing groove structure 4 along the distribution of shirttail profile, and in the groove of surfacing groove structure 4, surfacing has tungsten carbide strengthening layer.The arc angle α of the Origin And Destination formation of surfacing groove structure is at 100 ° ~ 180 °.The groove depth of surfacing groove structure 4 is 2 ~ 5mm.
Bit leg shirttail design surfacing groove structure; not only there is the function of original blasthole tricone rock bit; and after the wearing and tearing of palm back of the body surfacing tungsten carbide strengthening layer come off; this hard metal strengthening layer with surfacing groove structure can protect shirttail further; effective prolongation bit bearing service time, the working life of drill bit is improved.
In sum, the novel palm tip structure of the present invention causes the problem of drill bit earlier period damage after solving the wearing and tearing of palm back of the body surfacing layer, drill bit has dual-use function, the gauge ability namely with drill bit and the ability extending bit bearing application life, makes the operating efficiency of drill bit improve 10 ~ 15%.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. there is the tricone bit of strength protection shirttail; comprise gear wheel and bit leg; three gear wheels are contained on three bit legs respectively; three bit leg assembly weldings are in one; bit leg palm back of the body surfacing tungsten carbide strengthening layer; it is characterized in that: described bit leg shirttail is provided with the surfacing groove structure along the distribution of shirttail profile, and in the groove of surfacing groove structure, surfacing has tungsten carbide strengthening layer.
2. the tricone bit with strength protection shirttail according to claim 1, is characterized in that: the arc angle of the Origin And Destination formation of described surfacing groove structure is at 100 ° ~ 180 °.
3. the tricone bit with strength protection shirttail according to claim 1, is characterized in that: the groove depth of described surfacing groove structure is 2 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000592.1A CN104594805A (en) | 2015-01-04 | 2015-01-04 | Tri-cone bit with strong protection palm tips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000592.1A CN104594805A (en) | 2015-01-04 | 2015-01-04 | Tri-cone bit with strong protection palm tips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104594805A true CN104594805A (en) | 2015-05-06 |
Family
ID=53120815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000592.1A Pending CN104594805A (en) | 2015-01-04 | 2015-01-04 | Tri-cone bit with strong protection palm tips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104594805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370211A (en) * | 2015-12-08 | 2016-03-02 | 苏州新锐合金工具股份有限公司 | Tricone bit with strong protection cone shell |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6439326B1 (en) * | 2000-04-10 | 2002-08-27 | Smith International, Inc. | Centered-leg roller cone drill bit |
| CN1404956A (en) * | 2002-11-04 | 2003-03-26 | 江汉石油钻头股份有限公司 | Tube-like tungsten carbonate welding bar |
| CN2727377Y (en) * | 2004-06-07 | 2005-09-21 | 江汉石油钻头股份有限公司 | Roller bit with reinforced palm tip structure |
| US20100101866A1 (en) * | 2007-01-08 | 2010-04-29 | Bird Jay S | Drill bits and other downhole tools with hardfacing having tungsten carbide pellets and other hard materials |
| CN202081823U (en) * | 2011-05-24 | 2011-12-21 | 苏州新锐工程工具有限公司 | Mine tricone bit with lifting power |
| WO2012044888A2 (en) * | 2010-10-01 | 2012-04-05 | Varel International, Ind., L.P. | Wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit |
| CN102434113A (en) * | 2011-12-30 | 2012-05-02 | 苏州新锐工程工具有限公司 | Front connector of high air-pressure down-the-hole hammer |
| CN202810660U (en) * | 2012-07-04 | 2013-03-20 | 江汉石油钻头股份有限公司 | Cone bit with strengthened abrasion resistance of bit leg tip |
| CN204371103U (en) * | 2015-01-04 | 2015-06-03 | 苏州新锐合金工具股份有限公司 | There is the tricone bit of strength protection shirttail |
-
2015
- 2015-01-04 CN CN201510000592.1A patent/CN104594805A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6439326B1 (en) * | 2000-04-10 | 2002-08-27 | Smith International, Inc. | Centered-leg roller cone drill bit |
| CN1404956A (en) * | 2002-11-04 | 2003-03-26 | 江汉石油钻头股份有限公司 | Tube-like tungsten carbonate welding bar |
| CN2727377Y (en) * | 2004-06-07 | 2005-09-21 | 江汉石油钻头股份有限公司 | Roller bit with reinforced palm tip structure |
| US20100101866A1 (en) * | 2007-01-08 | 2010-04-29 | Bird Jay S | Drill bits and other downhole tools with hardfacing having tungsten carbide pellets and other hard materials |
| WO2012044888A2 (en) * | 2010-10-01 | 2012-04-05 | Varel International, Ind., L.P. | Wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit |
| CN202081823U (en) * | 2011-05-24 | 2011-12-21 | 苏州新锐工程工具有限公司 | Mine tricone bit with lifting power |
| CN102434113A (en) * | 2011-12-30 | 2012-05-02 | 苏州新锐工程工具有限公司 | Front connector of high air-pressure down-the-hole hammer |
| CN202810660U (en) * | 2012-07-04 | 2013-03-20 | 江汉石油钻头股份有限公司 | Cone bit with strengthened abrasion resistance of bit leg tip |
| CN204371103U (en) * | 2015-01-04 | 2015-06-03 | 苏州新锐合金工具股份有限公司 | There is the tricone bit of strength protection shirttail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370211A (en) * | 2015-12-08 | 2016-03-02 | 苏州新锐合金工具股份有限公司 | Tricone bit with strong protection cone shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |
|
| RJ01 | Rejection of invention patent application after publication |