CN204371103U - There is the tricone bit of strength protection shirttail - Google Patents
There is the tricone bit of strength protection shirttail Download PDFInfo
- Publication number
- CN204371103U CN204371103U CN201520001895.0U CN201520001895U CN204371103U CN 204371103 U CN204371103 U CN 204371103U CN 201520001895 U CN201520001895 U CN 201520001895U CN 204371103 U CN204371103 U CN 204371103U
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- bit
- surfacing
- shirttail
- groove structure
- strengthening layer
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Abstract
The utility model relates to the tricone bit with 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; 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.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.
Description
Technical field
The utility model relates to the tricone bit of oil exploration, mining, particularly relates 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.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, provides a kind of tricone bit with strength protection shirttail, causes the problem of drill bit earlier period damage after being intended to solve the wearing and tearing of palm back of the body surfacing layer.
The purpose of this utility model 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 solutions of the utility model are 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 solutions of the utility model are described further:
Fig. 1: the structural representation of tricone bit;
Fig. 2: schematic cross-section of the present utility model;
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 utility model 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 preferred embodiment of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
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 |
|---|---|---|---|
| CN201520001895.0U CN204371103U (en) | 2015-01-04 | 2015-01-04 | There is the tricone bit of strength protection shirttail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001895.0U CN204371103U (en) | 2015-01-04 | 2015-01-04 | There is the tricone bit of strength protection shirttail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371103U true CN204371103U (en) | 2015-06-03 |
Family
ID=53327333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520001895.0U Active CN204371103U (en) | 2015-01-04 | 2015-01-04 | There is the tricone bit of strength protection shirttail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594805A (en) * | 2015-01-04 | 2015-05-06 | 苏州新锐合金工具股份有限公司 | Tri-cone bit with strong protection palm tips |
-
2015
- 2015-01-04 CN CN201520001895.0U patent/CN204371103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594805A (en) * | 2015-01-04 | 2015-05-06 | 苏州新锐合金工具股份有限公司 | Tri-cone bit with strong protection palm tips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |