CN201763251U - Double-cone double spiral bit for rotary drill - Google Patents
Double-cone double spiral bit for rotary drill Download PDFInfo
- Publication number
- CN201763251U CN201763251U CN2010205197329U CN201020519732U CN201763251U CN 201763251 U CN201763251 U CN 201763251U CN 2010205197329 U CN2010205197329 U CN 2010205197329U CN 201020519732 U CN201020519732 U CN 201020519732U CN 201763251 U CN201763251 U CN 201763251U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drilling rig
- rotary drilling
- central siphon
- double helix
- 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 - Lifetime
Links
Landscapes
- Earth Drilling (AREA)
Abstract
A double-cone double spiral bit for a rotary drill comprises a flange and a cylindrical core shaft tube, wherein the flange is disposed at the top of the cylindrical core shaft tube. The periphery of the cylindrical core shaft tube is provided with a main spiral blade and a spiral guiding blade, wherein an upper end of the main spiral blade is connected with an upper plate and a lower end of the main spiral blade with a lower plate. An upper end of the spiral guiding blade is connected with a middle plate, and a lower end of the spiral guiding blade with the lower plate. The upper plate is fixed to the upper portion of the cylindrical core shaft tube, the middle plate to the middle portion of the cylindrical core shaft tube, and the lower plate to the lower portion of the cylindrical core shaft tube. The bottom of the cylindrical core shaft tube is provided with a torpedo head, at the periphery of which bucket teeth are uniformly distributed. The head part of the torpedo head is provided with bullet picks I uniformly distributed. The double-cone double spiral bit for the rotary drill of the utility model is long in service lifetime, low in energy consumption, strong in adaptability and good in guiding performance.
Description
Technical field
The utility model relates to the short augers of a kind of rotary drilling rig, especially relates to a kind of rotary drilling rig bipyramid double helix drill bit.
Background technology
In civil works, adopt rotary drilling rig to hole usually.During boring, the moment of torsion and the plus-pressure of rotary drilling rig output finally all pass to drilling tool, and the quality of drilling tool quality has determined directly whether work progress can efficiently carry out.Select for use suitable drilling tool that the raising of energy conservation, raising speed of fulfiling hole and quality and whole construction efficient is played crucial effects.According to the difference of formation drilling, short augers is divided into short augers of embedding rock and the short augers of soil layer.Generally speaking, the short augers of embedding rock mostly is the conehead pattern, and the short augers of soil layer mostly is the tack pattern.
Mainly there is following several places defective in existing short augers:
(1) the axle core pipe because of existing short augers is a cylinder, and along with going deep into of boring, the wearing and tearing of axle core pipe are bigger, and shelf life is short, the energy consumption height;
(2) geology because of China is intricate, and existing short augers compliance is relatively poor, can not independently work on dirt bed, sand-pebble and hard rock;
(3) existing short augers, in drilling process, stability and guidance quality are relatively poor, become inclined hole easily, the quality instability.
The utility model content
In order to overcome the above-mentioned defective that the short augers of existing rotary drilling rig exists, the utility model provides a kind of long service life, and energy consumption is low, and compliance is strong, the rotary drilling rig bipyramid double helix drill bit that steering capability is good.
The technical solution of the utility model is: it comprises flange and cylinder core central siphon, described flange is located at cylinder core central siphon top, cylinder core central siphon periphery is provided with main helical blade and lead screw blade, main helical blade upper end is connected with upper plate, main helical blade lower end is connected with lower plate, lead screw blade upper end is connected with middle plate, lead screw blade lower end is connected with lower plate, upper plate is fixed in cylinder core central siphon top, middle plate is fixed in cylinder core central siphon middle part, and lower plate is fixed in cylinder core central siphon bottom, and cylinder core central siphon bottom is provided with the torpedo head, torpedo head periphery is evenly equipped with bucket tooth, and torpedo head portion is evenly equipped with sub warhead pick I.
Preferred 12 of described bucket tooth quantity, 12 bucket tooths are four column distributions, 3 of every row.
Described bucket tooth is preferably tetrahedral.
Preferred 6 of the uniform sub warhead pick I quantity of the head of described torpedo head is mutually 60 ° ~ 75 °.
Described torpedo head diameter should be greater than cylinder core central siphon diameter.
Described main helical blade the first half is preferably forward type, and the latter half is preferably the conehead type, and conehead type edge is evenly equipped with sub warhead pick II.
Described lead screw blade is preferably the conehead type, and the edge is evenly equipped with sub warhead pick III.
Described sub warhead pick I, sub warhead pick II, the equal welding-on of sub warhead pick III head have tungsten-cobalt hard alloy.
The rotary drilling rig bipyramid double helix drill bit of the utility model, combine the characteristics of short augers of traditional embedding rock and the short augers of soil layer, can not only in general soil layer and sand layer, work, can also on closely knit sand pebble layer, work, be specially adapted to the boring of hard rocks such as decomposed rock.During boring, a some contact form smear metal fragmentation is passed through at uniform sub warhead pick I tip, torpedo head bottom, has reduced contact area, helps strengthening drilling ability.Because the torpedo head has good guidance quality, can make the rotary drill direction more accurate.The bucket tooth that torpedo head periphery is uniform helps reducing the wearing and tearing of drill bit, prolongs drilling life of bit.Simultaneously, because cylinder core central siphon lower end torpedo head radius is greater than cylinder core central siphon radius, revolving when cutting the earth layer, soil layer does not contact with the cylinder core central siphon, helps reducing frictional resistance, cuts down the consumption of energy.Main helical blade the first half is a forward type, and the latter half is the conehead type, and in drilling process, top can guarantee the stability of creeping into, and the bottom can make the guidance quality of boring better, thereby guarantees to help improving hole quality.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
With reference to accompanying drawing, present embodiment comprises flange 5 and cylinder core central siphon 11, described flange is located at cylinder core central siphon 11 tops, cylinder core central siphon 11 peripheries are provided with main helical blade 4 and lead screw blade 2, main helical blade 4 upper ends are connected with upper plate 6, main helical blade 4 lower ends are connected with lower plate 8, lead screw blade 11 upper ends are connected with middle plate 7, lead screw blade 1 lower end is connected with lower plate 8, upper plate 6 is fixed in cylinder core central siphon 11 tops, middle plate 7 is fixed in cylinder core central siphon 11 middle parts, lower plate fixes 8 in cylinder core central siphon 11 bottoms, cylinder core central siphon 11 bottoms are provided with torpedo head 1, torpedo head 1 periphery is evenly equipped with 12 bucket tooths 9,12 bucket tooths are four column distributions, 3 of every row, described bucket tooth 9 is a tetrahedral, torpedo head 1 head is evenly equipped with 6 sub warhead pick I 10, be mutually 70 °, described torpedo head 1 diameter is greater than cylinder core central siphon 11 diameters, described main helical blade 4 the first half are forward type, the latter half is the conehead type, conehead type edge is evenly equipped with sub warhead pick II 3, described lead screw blade 2 is the conehead type, the edge is evenly equipped with sub warhead pick III 12, described sub warhead pick I 10, sub warhead pick II 3, the equal welding-on of sub warhead pick III 12 heads has tungsten-cobalt hard alloy.
When drilling bucket revolved the shoveling layer, sub warhead pick I 10 was most advanced and sophisticated by a some contact form smear metal fragmentation, helps strengthening drilling ability; Bucket tooth 9 helps reducing the wearing and tearing of drilling bucket.Along with drilling bucket gos deep into soil layer gradually, the sub warhead pick II 3 on the main helical blade 4 and the sub warhead pick III 12 of lead screw blade 2 also begin to contact with soil layer, because torpedo head 1 diameter is greater than cylinder core central siphon 11 diameters, when revolving the shoveling layer, soil layer does not contact with cylinder core central siphon 11, thereby help reducing frictional resistance, cut down the consumption of energy.Main helical blade 4 the first half are forward type, and the latter half is the conehead type, and in drilling process, the forward type structure helps guaranteeing the stability of creeping into helping improving hole quality, reduces the inclined hole generation rate.
The rotary drilling rig bipyramid double helix drill bit of the utility model, soil layer compliance is strong, and borehole stability is good and steering capability is excellent, the drilling tool wearing and tearing are little, energy consumption is low, can not only in general soil layer and sand layer, hole, can also in closely knit sand pebble layer, hole, be specially adapted to hard rock drillings such as decomposed rock.
Claims (10)
1. rotary drilling rig bipyramid double helix drill bit, comprise flange and cylinder core central siphon, described flange is located at cylinder core central siphon top, it is characterized in that, cylinder core central siphon periphery is provided with main helical blade and lead screw blade, main helical blade upper end is connected with upper plate, main helical blade lower end is connected with lower plate, lead screw blade upper end is connected with middle plate, lead screw blade lower end is connected with lower plate, upper plate is fixed in cylinder core central siphon top, middle plate is fixed in cylinder core central siphon middle part, and lower plate is fixed in cylinder core central siphon bottom, and cylinder core central siphon bottom is provided with the torpedo head, torpedo head periphery is evenly equipped with bucket tooth, and torpedo head portion is evenly equipped with sub warhead pick I.
2. rotary drilling rig bipyramid double helix drill bit according to claim 1 is characterized in that described bucket tooth is 12, and 12 bucket tooths are four column distributions, 3 of every row.
3. rotary drilling rig bipyramid double helix drill bit according to claim 1 and 2 is characterized in that described bucket tooth is a tetrahedral.
4. rotary drilling rig bipyramid double helix drill bit according to claim 1 and 2 is characterized in that, the uniform sub warhead pick I of described torpedo head portion is 6, is mutually 60 ° ~ 75 °.
5. rotary drilling rig bipyramid double helix drill bit according to claim 1 and 2 is characterized in that described torpedo head diameter is greater than cylinder core central siphon diameter.
6. rotary drilling rig bipyramid double helix drill bit according to claim 1 and 2 is characterized in that described main helical blade the first half is a forward type, and the latter half is the conehead type, and conehead type edge is evenly equipped with sub warhead pick II.
7. rotary drilling rig bipyramid double helix drill bit according to claim 1 and 2 is characterized in that described lead screw blade is the conehead type, and the edge is evenly equipped with sub warhead pick III.
8. rotary drilling rig bipyramid double helix drill bit according to claim 1 and 2 is characterized in that, described sub warhead pick I head welding-on has tungsten-cobalt hard alloy.
9. rotary drilling rig bipyramid double helix drill bit according to claim 6 is characterized in that, the equal welding-on of described sub warhead pick II head has tungsten-cobalt hard alloy.
10. rotary drilling rig bipyramid double helix drill bit according to claim 7 is characterized in that, the equal welding-on of described sub warhead pick III head has tungsten-cobalt hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205197329U CN201763251U (en) | 2010-09-07 | 2010-09-07 | Double-cone double spiral bit for rotary drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205197329U CN201763251U (en) | 2010-09-07 | 2010-09-07 | Double-cone double spiral bit for rotary drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763251U true CN201763251U (en) | 2011-03-16 |
Family
ID=43715860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205197329U Expired - Lifetime CN201763251U (en) | 2010-09-07 | 2010-09-07 | Double-cone double spiral bit for rotary drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011554A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| CN104533297A (en) * | 2015-01-14 | 2015-04-22 | 北京中岩大地工程技术有限公司 | Diameter-variable drill bit of long-spiral drill |
-
2010
- 2010-09-07 CN CN2010205197329U patent/CN201763251U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011554A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| CN102011554B (en) * | 2010-09-07 | 2013-01-16 | 李新桥 | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| CN104533297A (en) * | 2015-01-14 | 2015-04-22 | 北京中岩大地工程技术有限公司 | Diameter-variable drill bit of long-spiral drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011549A (en) | Non-coring cylindrical rock drill of rotary drilling rig | |
| CN201588550U (en) | Stagewise spiral cutter edge type PDC drill bit | |
| CN102011555B (en) | Double-cone and double-helix drill bit for rotary drilling rig | |
| CN201763251U (en) | Double-cone double spiral bit for rotary drill | |
| CN202125269U (en) | Rotary drilling rig and drilling tool of rotary drilling rig | |
| CN208122763U (en) | A kind of diameter changing drilling tool | |
| CN102011554B (en) | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end | |
| CN201050304Y (en) | Horizontal well diamond composite slices kickoff bit | |
| CN201865583U (en) | High-efficiency three-scraper drill bit | |
| CN201763248U (en) | Double-cone double spiral bit for rotary drill | |
| CN206903590U (en) | A kind of new six wings PDC drill bit of band cone tooth | |
| CN206903589U (en) | A kind of new five wings PDC drill bit of band cone tooth | |
| CN201714317U (en) | Down-the-hole drilling rig centering device | |
| CN202946014U (en) | Directional deflection bit | |
| CN108086914B (en) | Reducing drilling tool | |
| CN205840789U (en) | A kind of all standing type cone palm sheet | |
| CN201763242U (en) | Non-core cylindrical rock drill equipped with sawteeth at bottom | |
| CN203441372U (en) | Diamond composite tooth down-the-hole drill bit | |
| CN201763244U (en) | Non-core cylindrical rock drill for rotary drilling rig | |
| CN202603174U (en) | Screw type cutterhead for planting pit digging machine | |
| CN208416467U (en) | A kind of more power preventing sticking auger stems | |
| CN207920532U (en) | A kind of drilling tool | |
| CN102337841A (en) | Sapphire inner-spiral pulse type spiral-complex comprehensive-drilling bit with mud diversion trench | |
| CN210829084U (en) | Spherical tooth drill bit with reaming function and self-drilling type anchoring system | |
| CN108104723B (en) | Drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110316 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |