CN204920812U - A inside spin nozzle for on drill bit - Google Patents
A inside spin nozzle for on drill bit Download PDFInfo
- Publication number
- CN204920812U CN204920812U CN201520706216.XU CN201520706216U CN204920812U CN 204920812 U CN204920812 U CN 204920812U CN 201520706216 U CN201520706216 U CN 201520706216U CN 204920812 U CN204920812 U CN 204920812U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- nozzle
- inside spin
- spiral
- hole wall
- 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)
- Nozzles (AREA)
Abstract
The utility model discloses an inside spin nozzle for on drill bit, including the nozzle body of outband screw thread and hole, there are 2 bar at least spirals that run through export and import on the nozzle body hole pore wall. The utility model discloses mud is high towards the injection pressure, goes with crushing effect to the impact force of rock mass etc..
Description
technical field:
The utility model relates to the drilling field such as oil, mining industry, exploration, particularly be a kind of inside spin nozzle on drill bit.
Background technology
Survey at oil Bian, mining industry exploration on.Nozzle in drilling well is used to improve the Cheongju of jet to shaft bottom landwaste and washes ability and auxiliary drill bit fractured rock, improves bit speed.Current nozzle is all that then abrasive dust is processed to form with carbide alloy compression molding vacuum-sintering.Shape is cylindrical, most of the surface of thread, used for fixed in drilling machine.Endoporus has straight hole, bellmouth orifice or bellmouth orifice and straight hole combined become.Exports have cross, six-party etc, used for fastening move their hands twist to reinforce the nozzle in the diamond.This nozzle inner walls all is at present all shiny surface.
Summary of the invention
The purpose of this utility model be in order to, provide a kind of mud to rush injection pressure high, to the impact force of rock mass etc. and the good inside spin nozzle on drill bit of crushing effect.
The purpose of this utility model is achieved like this:
The inside spin nozzle of the utility model on drill bit, comprise band external screw thread and the nozzle body of endoporus, nozzle body endoporus hole wall has and runs through and at least 2 of import spirals, the quantity of spiral depends on the needs, and can be 2,3,4,5,6,7,8 etc.
Above-mentioned spiral protrudes on endoporus hole wall.
In the recessed endoporus hole wall of above-mentioned spiral.
Be circular arc bottom the spiral of above-mentioned recessed endoporus hole wall, reduce fluid resistance.
Spiral on above-mentioned endoporus hole wall is parallel to each other.
Spiral on above-mentioned endoporus hole wall is Reducing screw.
Spiral on above-mentioned endoporus hole wall is isometrical screw thread.
The utility model can make the mud of injection realize precessional motion in nozzle, adds jet power.It is high that mud rushes injection pressure, to the impact force of rock mass etc. and crushing effect good.With the nozzle characteristic testing of four threaded line, under the same conditions, have inside spin than the nozzle not having inside spin, impact force adds 16%.
accompanying drawing illustrates:
Fig. 1 is the utility model inside spin nozzle arrangements schematic diagram.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the spout schematic diagram in Fig. 1.
Fig. 4 is the utility model structural representation having 2 spirals.
Fig. 5 is the utility model structural representation having 6 spirals.
Fig. 6 is the utility model structural representation having 8 spirals.
Fig. 7 is the utility model structural representation having 3 spirals.
Fig. 8 is another structural representation of the utility model inside spin nozzle.
Fig. 9 is the right view of Fig. 8.
detailed description of the invention:
Embodiment 1:
See Fig. 1 ~ Fig. 3, the inside spin nozzle of the present embodiment 1 on drill bit, comprises the nozzle body 2 of band external screw thread and endoporus 1.Nozzle body endoporus hole wall there are 4 spirals 5 in the recessed endoporus hole wall running through outlet 3 and import 4.Bottom the spiral of recessed endoporus hole wall, 6 is circular arc.Spiral on endoporus hole wall is parallel to each other.Nozzle exit has hexagon prism fixed part 7.
Embodiment 2:
See Fig. 4, the present embodiment 2 is basic with embodiment 1 together, and not existing together be spiral on nozzle body endoporus hole wall is 2.
Embodiment 3:
See Fig. 5, the present embodiment 3 is basic with embodiment 1 together, and not existing together be spiral on nozzle body endoporus hole wall is 6.
Embodiment 4:
See Fig. 6, the present embodiment 4 is basic with embodiment 1 together, and not existing together be spiral on nozzle body endoporus hole wall is 8.
Embodiment 5:
See Fig. 7, the present embodiment 5 is basic with embodiment 1 together, and not existing together be spiral on nozzle body endoporus hole wall is 3.
Embodiment 6:
Fig. 8, Fig. 9, the present embodiment 6 is basic and embodiment 1 is same, and not existing together is that nozzle exit has cross fixed part 9.
Claims (7)
1. the inside spin nozzle on drill bit, comprises the nozzle body of band external screw thread and endoporus, it is characterized in that nozzle body endoporus hole wall there are at least 2 spirals running through export and import.
2. the inside spin nozzle on drill bit as claimed in claim 1, is characterized in that spiral protrudes on endoporus hole wall.
3. the inside spin nozzle on drill bit as claimed in claim 1, is characterized in that in the recessed endoporus hole wall of spiral.
4. inside spin nozzle on drill bit as claimed in claim 3 is circular arc bottom the spiral that it is characterized in that recessed endoporus hole wall.
5. the inside spin nozzle on drill bit as described in one of Claims 1 to 4, is characterized in that the spiral on endoporus hole wall is parallel to each other.
6. the inside spin nozzle on drill bit as described in one of Claims 1 to 4, is characterized in that the spiral on endoporus hole wall is Reducing screw.
7. the inside spin nozzle on drill bit as described in one of Claims 1 to 4, is characterized in that the spiral on endoporus hole wall is isometrical spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706216.XU CN204920812U (en) | 2015-09-11 | 2015-09-11 | A inside spin nozzle for on drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706216.XU CN204920812U (en) | 2015-09-11 | 2015-09-11 | A inside spin nozzle for on drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920812U true CN204920812U (en) | 2015-12-30 |
Family
ID=54969949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520706216.XU Expired - Fee Related CN204920812U (en) | 2015-09-11 | 2015-09-11 | A inside spin nozzle for on drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538128A (en) * | 2019-01-18 | 2019-03-29 | 沧州格锐特钻头有限公司 | A kind of shockproof PDC drill bit |
-
2015
- 2015-09-11 CN CN201520706216.XU patent/CN204920812U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538128A (en) * | 2019-01-18 | 2019-03-29 | 沧州格锐特钻头有限公司 | A kind of shockproof PDC drill bit |
| CN109538128B (en) * | 2019-01-18 | 2024-04-02 | 沧州格锐特钻头有限公司 | Shockproof PDC drill bit |
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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 |
Granted publication date: 20151230 Termination date: 20200911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |