CN104594806A - Reinforced type drilling drill bit with gauge protection step - Google Patents
Reinforced type drilling drill bit with gauge protection step Download PDFInfo
- Publication number
- CN104594806A CN104594806A CN201310520673.5A CN201310520673A CN104594806A CN 104594806 A CN104594806 A CN 104594806A CN 201310520673 A CN201310520673 A CN 201310520673A CN 104594806 A CN104594806 A CN 104594806A
- Authority
- CN
- China
- Prior art keywords
- head
- drill bit
- hole
- trousers body
- gauge
- 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
- 238000005553 drilling Methods 0.000 title abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 14
- 238000011010 flushing procedure Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 7
- 239000010882 bottom ash Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 206010027336 Menstruation delayed Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process 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
- E21B10/36—Percussion drill 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
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 drilling tools, in particular to a reinforced type drilling drill bit with a gauge protection step. The reinforced type drilling drill bit is provided with a trouser body, a blind hole with a downward opening is formed in the trouser body, the lower section of the blind hole is a threaded hole, the front end of the trouser body is a conic head shrinking forwards, multiple arc-shaped grooves are formed in the periphery of the head, multiple inclined holes are formed in the conic face of the head, the inclined holes and the arc-shaped grooves are staggered and alternated, each alloy tooth is embedded in the corresponding inclined hole, multiple perpendicular holes are formed in the end face of the head, and each alloy tooth is embedded in the corresponding perpendicular hole. The reinforced type drilling drill bit is characterized in that at least one flushing hole is drilled in the end face of the head so as to be communicated with the blind hole in the trouser body, the head and the trouser body are in transitional connection through two sections of structures, the front section is a gauge protection step cylindrical section connected with the head, and the rear section is a reversed cone connected with the trouser body. By the adoption of the reinforced type drilling drill bit, the problems that teeth of an existing drill bit are broken and fall in the early stage and the residue discharging effect is not ideal are well solved and the reinforced type drilling drill bit is widely applied to mountain cutting and rock drilling engineering.
Description
Technical field
The present invention relates to the drilling tool class applied in the drilling engineering that cuts into a mountain, especially a kind of enhancement mode rock drill bit with gauge step.
Background technology
At present, in the drilling engineering that cuts into a mountain, widely used rock drill bit has trousers body, and trousers body front end is conical nose, and head outer diameter is greater than trousers body diameter usually, and is embedded with Internal and external cycle carbide button at head; Head slagging structure has mainly adopted planarized structure design, and is provided with limbers, and this limbers mainly adopts symmetrical center and side mode.Major defect is that trousers body integral rigidity and intensity are low, and the effective volume of carbide button periphery is little, not wear-resisting, and use easily occur falling tooth and broken teeth phenomenon middle late period morning, deslagging effect is not ideal enough.
Summary of the invention
Object of the present invention will solve existing rock drill bit exactly and occurs broken teeth in early days in use and fall tooth problem, and the problem such as deslagging effect is undesirable, provides the enhancement mode rock drill bit with gauge step.
Concrete scheme of the present invention is: improve for existing rock drill bit, it has trousers body, the blind hole that Open Side Down is provided with in trousers body, the hypomere of blind hole is screwed hole, the front end of trousers body is the conical nose of withdrawn forward, some deep-slotted chip breakers are shaped with in head surrounding, the head conical surface has some inclined holes, inclined hole and deep-slotted chip breaker misplace alternate layout, carbide button is embedded with in each inclined hole, the end face of head has some upright openings, carbide button is embedded with in each upright opening, it is characterized in that: head end is drilled with the blind hole at least one flushing hole connection trousers body, be connected by two-stage structure transition between head with trousers body, leading portion is that gauge stepped cylindrical section is connected with head, and back segment is that reverse taper is connected with trousers body.
The stepped cylindrical of gauge described in the present invention segment length >=2mm.
In at least one deep-slotted chip breaker of head cylindrical, ash pit is offered in the present invention.
Turn forward bottom ash pit described in the present invention setting; Angle of inclination bottom described ash pit is 5-20 °.
In ash pit, the blind hole in limbers connection trousers body is had in the present invention.
The present invention has the following advantages: have good deslagging performance, and rate of penetration is fast, and particularly set up gauge stepped cylindrical section, trousers body intensity and anti-wear performance strengthen greatly; Permanent tooth is firm, there will not be early stage broken teeth and falls tooth phenomenon, greatly improve rock penetration performance in using.
Accompanying drawing explanation
Fig. 1 is the front view (eliminating carbide button in figure) of one of structure of the present invention;
Fig. 2 is the top view (eliminating carbide button in figure) of one of structure of the present invention;
Fig. 3 is the A-A view of Fig. 2;
Fig. 4 is the B-O view of Fig. 2;
Fig. 5 is the front view (eliminating carbide button in figure) of structure two of the present invention;
Fig. 6 is the top view (eliminating carbide button in figure) of structure two of the present invention;
Fig. 7 is the C-C view of Fig. 6;
Fig. 8 is the D-O view of Fig. 6.
In figure: 1-trousers body, 2-deep-slotted chip breaker, 3-reverse taper, 4-gauge stepped cylindrical section, 5-conical surface, 6-inclined hole, 7-head end, 8,9-carbide button, 10-upright opening, 11-blind hole, 12-flushing hole, 13-ash pit, 14-limbers.
Detailed description of the invention
Example 1: see Fig. 1-4, one of structure of the present invention, it has trousers body 1, the blind hole 11 that Open Side Down is provided with in trousers body 1, the hypomere of blind hole 11 is screwed hole, the front end of trousers body 1 is the conical nose of withdrawn forward, three deep-slotted chip breakers 2 are shaped with in head surrounding, the head conical surface has three inclined holes 6, inclined hole 6 and deep-slotted chip breaker 2 misplace alternate layout, carbide button 8 is embedded with in each inclined hole 6, the end face of head has two upright openings 10, carbide button 9 is embedded with in each upright opening 10, particularly: head end is drilled with a limbers 12 and is communicated with blind hole 11 in trousers body 1, be connected by two-stage structure transition between head with trousers body 1, leading portion is that gauge stepped cylindrical section 4 is connected with head, and back segment is that reverse taper 3 is connected with trousers body 1.
The stepped cylindrical of gauge described in the present embodiment section 4 length L=4.5mm.
Example 2: see Fig. 5-8, structure two of the present invention, it has trousers body 1, the blind hole 11 that Open Side Down is provided with in trousers body 1, the hypomere of blind hole 11 is screwed hole, the front end of trousers body 1 is the conical nose of withdrawn forward, three deep-slotted chip breakers 2 are shaped with in head surrounding, the head conical surface has some inclined holes 6, inclined hole 6 and deep-slotted chip breaker 2 misplace alternate layout, carbide button 8 is embedded with in each inclined hole 6, 9, the end face of head has some upright openings 10, carbide button 8 is embedded with in each upright opening 10, 9, particularly: head end is drilled with at least one limbers 12 and is communicated with blind hole 11 in trousers body 1, be connected by two-stage structure transition between head with trousers body 1, leading portion is that gauge stepped cylindrical section 4 is connected with head, and back segment is that reverse taper 3 is connected with trousers body 1.
The stepped cylindrical of gauge described in the present embodiment section 4 length L=5mm.
In two of head cylindrical deep-slotted chip breakers 2, ash pit 13 is offered in the present embodiment.
Turn forward bottom ash pit 13 described in the present embodiment setting; Angle of inclination bottom described ash pit 13 is 5-20 °, concrete α=10 °, and has limbers 14 in an ash pit 13 wherein and be communicated with blind hole 11.
The present invention is not limited to above-mentioned embodiment, adopts the structure identical or approximate with the above embodiment of the present invention, and other form designs obtained, all within protection scope of the present invention.
Claims (6)
1. the enhancement mode rock drill bit with gauge step, there is trousers body, the blind hole that Open Side Down is provided with in trousers body, the hypomere of blind hole is screwed hole, the front end of trousers body is the conical nose of withdrawn forward, some deep-slotted chip breakers are shaped with in head surrounding, the head conical surface has some inclined holes, inclined hole and deep-slotted chip breaker misplace alternate layout, carbide button is embedded with in each inclined hole, the end face of head has some upright openings, is embedded with carbide button in each upright opening, it is characterized in that: head end is drilled with the blind hole at least one flushing hole connection trousers body; Be connected by two-stage structure transition between head with trousers body, leading portion is that gauge stepped cylindrical section is connected with head, and back segment is that reverse taper is connected with trousers body.
2. a kind of enhancement mode rock drill bit with gauge step according to claim 1, is characterized in that: described gauge stepped cylindrical segment length >=2mm.
3. a kind of enhancement mode rock drill bit with gauge step according to claim 1, is characterized in that: at least one deep-slotted chip breaker of head cylindrical, offer ash pit.
4. a kind of enhancement mode rock drill bit with gauge step according to claim 3, is characterized in that: turn forward bottom described ash pit setting.
5. a kind of enhancement mode rock drill bit with gauge step according to claim 4, is characterized in that: the angle of inclination bottom described ash pit is 5-20 °.
6. a kind of enhancement mode rock drill bit with gauge step according to claim 3, is characterized in that: in ash pit, have the blind hole in limbers connection trousers body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310520673.5A CN104594806A (en) | 2013-10-30 | 2013-10-30 | Reinforced type drilling drill bit with gauge protection step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310520673.5A CN104594806A (en) | 2013-10-30 | 2013-10-30 | Reinforced type drilling drill bit with gauge protection step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104594806A true CN104594806A (en) | 2015-05-06 |
Family
ID=53120816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310520673.5A Pending CN104594806A (en) | 2013-10-30 | 2013-10-30 | Reinforced type drilling drill bit with gauge protection step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104594806A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10125552B2 (en) | 2015-08-27 | 2018-11-13 | Cnpc Usa Corporation | Convex ridge type non-planar cutting tooth and diamond drill bit |
| CN108868618A (en) * | 2018-08-03 | 2018-11-23 | 洛阳中岩工程材料有限公司 | Convenient for the casting anchoring drill bit efficiently produced |
| CN114184502A (en) * | 2022-02-15 | 2022-03-15 | 西南石油大学 | PDC micro-drill bit, rock drillability testing device and method |
-
2013
- 2013-10-30 CN CN201310520673.5A patent/CN104594806A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10125552B2 (en) | 2015-08-27 | 2018-11-13 | Cnpc Usa Corporation | Convex ridge type non-planar cutting tooth and diamond drill bit |
| CN108868618A (en) * | 2018-08-03 | 2018-11-23 | 洛阳中岩工程材料有限公司 | Convenient for the casting anchoring drill bit efficiently produced |
| CN108868618B (en) * | 2018-08-03 | 2023-12-12 | 洛阳中岩工程材料有限公司 | Cast anchoring drill bit convenient for efficient production |
| CN114184502A (en) * | 2022-02-15 | 2022-03-15 | 西南石油大学 | PDC micro-drill bit, rock drillability testing device and method |
| CN114184502B (en) * | 2022-02-15 | 2022-05-20 | 西南石油大学 | PDC micro-drill bit, rock drillability testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |