CN205189761U - A drill bit for well drilling - Google Patents
A drill bit for well drilling Download PDFInfo
- Publication number
- CN205189761U CN205189761U CN201521016452.5U CN201521016452U CN205189761U CN 205189761 U CN205189761 U CN 205189761U CN 201521016452 U CN201521016452 U CN 201521016452U CN 205189761 U CN205189761 U CN 205189761U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- liquid nitrogen
- cutting edge
- drilling well
- utility
- 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.)
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Abstract
The utility model relates to an operation technical field specifically is a drill bit for well drilling, can effectively guarantee drilling life of bit's a drill bit for well drilling, the drill bit establish the end at rotary driving machine, length direction bottom at the drill bit has the cutting edge, and this cutting edge and drill bit main part formula structure as an organic whole are equipped with liquid nitrogen circulation and say in the drill bit main part, and this liquid nitrogen circulation is said and the cutting edge is linked together and be equipped with at least one liquid nitrogen injection pipe in the junction, the drill bit still include a plurality of cut edges, each cut edge all is connected with the liquid nitrogen injection pipe. The utility model discloses when the operation, can guarantee to have at least ejecting at least one cutting edge of liquid nitrogen to make the cutting edge form a drill bit that studs with the polycrystal diamond, thus the intensity of reinforcing drill bit. Through with low temperature liquid nitrogen admission passage to get rid of a large amount of heat energy of metal material release, protective tool does not receive the damage.
Description
[technical field]
The utility model relates to apparatus for work technical field, specifically a kind of drill bit for drilling well.
[background technology]
As everyone knows, dig pit operation time, drill bit, around vertical shaft rotary, moves axially simultaneously.Soil is cut under the moment of torsion and responsive to axial force of drill bit, is destroyed and smashes to ravel under the extruding and centrifugal action of working-blade, forms native stream and presses to hole wall, simultaneously along page elevator to earth's surface.When native stream moves to without hole wall stop place, because centrifugal action hack is thrown around hole, complete whole process of digging pit.
But in operation, some meets material owing to having high-wearing feature, easily causes bit wear, decreases the life-span of drill bit, also brings many potential safety hazards.
[utility model content]
The purpose of this utility model is exactly to solve the deficiency and defect that drill bit in prior art easily weares and teares by high-abrasive material, a kind of novel structure is provided, safe and reliable, effectively can ensure the drill bit for drilling well of drilling life of bit, described drill bit is located at the end of rotary driving machine, described have cutting edge bottom the length direction of drill bit, this cutting edge and drill main body are integral type structure, a liquid nitrogen circulation road is provided with in drill main body, this liquid nitrogen circulation road is connected with cutting edge and is provided with at least one liquid nitrogen spray pipe in junction, described drill bit also comprises multiple cut edge, each cut edge is all connected with liquid nitrogen spray pipe.
Cutting edge is the insertosome structure of a polycrystalline diamond.
Liquid nitrogen circulation road adopts heat insulator.
Liquid nitrogen circulation road connects liquid nitrogen producing device by liquid nitrogen for pipe.
Liquid nitrogen is provided with valve for pipe.
Liquid nitrogen is flexible steel in flat section tubing for pipe.
Compared with the existing technology, its advantage is that the utility model is when operation to the utility model, can ensure to have at least a liquid nitrogen to eject at least one cutting edge, thus cutting edge is formed drill bit that one studs with polycrystalline diamond, thus strengthen the intensity of drill bit.By by low temperature liquid nitrogen admission passage, to remove a large amount of heat energy of metal material release, protect instrument injury-free.
[accompanying drawing explanation]
Fig. 1 is the primary structure schematic diagram of the utility model embodiment;
Fig. 2 is the phantom drawing of drill bit in the utility model embodiment;
As shown in the figure, in figure: 1. liquid nitrogen producing device 2. liquid nitrogen is for pipe 3. valve 4. drill bit 5. polycrystalline diamond 6. cutting face 7. liquid nitrogen discharge line;
Fig. 1 is specified to be Figure of abstract of the present utility model.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model is a kind of drill bit for drilling well, bottom the length direction of drill bit, there is cutting edge, this cutting edge and drill main body are integral type structure, a liquid nitrogen circulation road is provided with in drill main body, this liquid nitrogen circulation road is connected with cutting edge and is provided with at least one liquid nitrogen spray pipe in junction, drill bit also comprises multiple cut edge, and each cut edge is all connected with liquid nitrogen spray pipe.
Claims (6)
1. the drill bit for drilling well, described drill bit is located at the end of rotary driving machine, bottom the length direction of drill bit, there is cutting edge described in it is characterized in that, this cutting edge and drill main body are integral type structure, a liquid nitrogen circulation road is provided with in drill main body, this liquid nitrogen circulation road is connected with cutting edge and is provided with at least one liquid nitrogen spray pipe in junction, and described drill bit also comprises multiple cut edge, and each cut edge is all connected with liquid nitrogen spray pipe.
2. a kind of drill bit for drilling well as claimed in claim 1, is characterized in that described cutting edge is the insertosome structure of a polycrystalline diamond.
3. a kind of drill bit for drilling well as claimed in claim 1, is characterized in that described liquid nitrogen circulation road adopts heat insulator.
4. a kind of drill bit for drilling well as claimed in claim 1, is characterized in that described liquid nitrogen circulation road connects liquid nitrogen producing device by liquid nitrogen for pipe.
5. a kind of drill bit for drilling well as claimed in claim 4, is characterized in that described liquid nitrogen is provided with valve for pipe.
6. a kind of drill bit for drilling well as claimed in claim 4, is characterized in that described liquid nitrogen is flexible steel in flat section tubing for pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016452.5U CN205189761U (en) | 2015-12-09 | 2015-12-09 | A drill bit for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016452.5U CN205189761U (en) | 2015-12-09 | 2015-12-09 | A drill bit for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205189761U true CN205189761U (en) | 2016-04-27 |
Family
ID=55782761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521016452.5U Active CN205189761U (en) | 2015-12-09 | 2015-12-09 | A drill bit for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205189761U (en) |
-
2015
- 2015-12-09 CN CN201521016452.5U patent/CN205189761U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |