CN202202814U - Polycrystalline diamond compact (PDC) anchor bit - Google Patents
Polycrystalline diamond compact (PDC) anchor bit Download PDFInfo
- Publication number
- CN202202814U CN202202814U CN2011202877950U CN201120287795U CN202202814U CN 202202814 U CN202202814 U CN 202202814U CN 2011202877950 U CN2011202877950 U CN 2011202877950U CN 201120287795 U CN201120287795 U CN 201120287795U CN 202202814 U CN202202814 U CN 202202814U
- Authority
- CN
- China
- Prior art keywords
- bit
- pdc
- diamond compact
- pdcs
- shaped
- 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.)
- Expired - Fee Related
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- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model provides a polycrystalline diamond compact (PDC) anchor bit, which belongs to rock breaking tools and comprises a bit and a drill pipe, wherein the bit is connected with the drill pipe through screw threads. The PDC anchor bit is characterized in that the bit comprises spherical-surface-shaped PDCs and water holes, wherein two blades are symmetrically arranged on the bit; one spherical-surface-shaped PDC is brazed on each blade; and the water holes longitudinally pass through the bit and the drill pipe. The PDCs of the PDC anchor bit are spherical-surface-shaped, so the loading conditions of the PDCs can be improved, the drilling stress of the PDCs is reduced, the problem that a flat-surface-shaped PDC anchor bit is easy in tipping and becomes out of operation when encountering sandwich layers or hard stratums is well solved, and the PDC anchor bit can be drilled into medium-hard and hard rock stratums. The impact toughness is higher, the wear-resisting property is good, the rock breaking speed is quick, the cooling effect and the powder exhaust effect are good, and the hole drilling efficiency is improved.
Description
Technical field
[0001] the utility model belongs to rock crushing tool, be mainly used in bolting with wire mesh hole, colliery creep into, be specifically related to tough and tensile type diamond compact anchor bit.
Background technology
Existing diamond compact anchor bit, diamond compact are planar shaped.In actual use, the impact resistance of diamond compact is lower, runs into interlayer, perhaps easy tipping during competent bed, thus influenced the drilling depth of single drill bit.
Summary of the invention
It is higher that the utility model aims to provide a kind of toughness, and anti-wear performance is good, the diamond compact anchor bit that application life is long.
The technical scheme that realizes the utility model is: comprise drill bit, drilling rod; Drill bit and drilling rod are through being threaded; It is characterized in that drill bit comprises diamond compact, the water hole of sphere shape; Be arranged with two wings on the drill bit, equal soldering sphere shape diamond compact on each wing, drill bit, drilling rod are vertically passed in the water hole.
The diamond compact of the utility model is a sphere shape, can improve the force-bearing situation of diamond compact, reduces the stress that creeps into of diamond compact; (the 9-10 level is like coarse granule granite, granite gneiss running into interlayer or firm hard formation to preferably resolve planar shaped diamond compact anchor bit; The bloodstone quartzite; Hornfels etc.) easy tipping, and the problem that lost efficacy, hard, competent bed in can piercing.Toughness is higher, and anti-wear performance is good, and broken rock speed is fast, and cooling row powder is good, has improved drilling efficiency.
Description of drawings
Fig. 1 is drill bit structure figure among the utility model embodiment.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the structure chart (being connected dextrorotation with Fig. 1 turn 90 degrees) of the utility model embodiment drilling rod.
Among the figure: 1, sphere shape diamond compact; 2, water hole; 3, connecting thread; 4, drilling rod.
The specific embodiment
Embodiment: Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, present embodiment comprise drill bit, drilling rod 4, and drilling rod 4 is connected with drill bit through screw thread 3; Soldering sphere shape diamond compact 1 promptly is arranged with two wings on the drill bit on the drill bit, and 1 soldering of sphere shape diamond compact is on wing; Drill bit is provided with weep hole 2; Also be provided with weep hole on the drilling rod, the water hole on the drill bit communicates with water hole on the drilling rod, to guarantee to bore the wing cooling and timely row's powder in the rock process.
Claims (1)
1. diamond compact anchor bit; Comprise drill bit, drilling rod; Drill bit and drilling rod is characterized in that through being threaded drill bit comprises diamond compact, the water hole of sphere shape, is arranged with two wings on the drill bit; Equal soldering sphere shape diamond compact on each wing, drill bit, drilling rod are vertically passed in the water hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202877950U CN202202814U (en) | 2011-08-10 | 2011-08-10 | Polycrystalline diamond compact (PDC) anchor bit |
| AU2011101267A AU2011101267A4 (en) | 2011-08-10 | 2011-10-05 | Polycrystalline diamond (PCD) anchor drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202877950U CN202202814U (en) | 2011-08-10 | 2011-08-10 | Polycrystalline diamond compact (PDC) anchor bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202202814U true CN202202814U (en) | 2012-04-25 |
Family
ID=45465468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202877950U Expired - Fee Related CN202202814U (en) | 2011-08-10 | 2011-08-10 | Polycrystalline diamond compact (PDC) anchor bit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202202814U (en) |
| AU (1) | AU2011101267A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894766A (en) * | 2017-03-21 | 2017-06-27 | 中冶成都勘察研究总院有限公司 | For crack, the anti-float anchor rod constructing device of rich groundwater shale layer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469274A (en) * | 2019-08-26 | 2019-11-19 | 山东源运通矿山装备科技有限公司 | Coal drill bit |
-
2011
- 2011-08-10 CN CN2011202877950U patent/CN202202814U/en not_active Expired - Fee Related
- 2011-10-05 AU AU2011101267A patent/AU2011101267A4/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894766A (en) * | 2017-03-21 | 2017-06-27 | 中冶成都勘察研究总院有限公司 | For crack, the anti-float anchor rod constructing device of rich groundwater shale layer |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2011101267A4 (en) | 2011-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20170810 |