CN201517371U - Pneumatic punching scraping drill bit of mountainous composite stratum - Google Patents
Pneumatic punching scraping drill bit of mountainous composite stratum Download PDFInfo
- Publication number
- CN201517371U CN201517371U CN2009202462391U CN200920246239U CN201517371U CN 201517371 U CN201517371 U CN 201517371U CN 2009202462391 U CN2009202462391 U CN 2009202462391U CN 200920246239 U CN200920246239 U CN 200920246239U CN 201517371 U CN201517371 U CN 201517371U
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- China
- Prior art keywords
- pricker
- drill
- wing
- drill bit
- drilling
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- 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
- 238000007790 scraping Methods 0.000 title abstract description 10
- 238000004080 punching Methods 0.000 title abstract 4
- 239000002131 composite material Substances 0.000 title abstract 3
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 230000007704 transition Effects 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 238000005219 brazing Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 208000002697 Tooth Abrasion Diseases 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a pneumatic punching scraping drill bit of mountainous composite stratum, which is a pneumatic drill bit applied for a mountainous rock drilling borer in geological exploration of petroleum. The pneumatic punching drill bit is mainly composed of a drill wing and a drill body. The drill body is provided with a central hole which is a channel for air passing in drilling. The utility model is characterized in that: the external surface of the drill body is provided with a spline tank. The drill bit at the end of the drill body is composed of three drill wings. The drilling wing is arc-shaped and oblique. The inclined angle between the central lines of the drill wing and the drill body is 5-20 DEG. Nozzles are provided among the drill wings. The central hole of the drill body is communicated with the nozzles. The top of each drill wing is fixed with central teeth. Spoon-shaped teeth are fixed at the transition segment of the arc of drill wings. Edge teeth are fixed at the end of drill wings. The pneumatic punching scraping drill bit of mountainous composite stratum an effect that the drill bit use scraping as a main purpose for increasing the drilling efficiency. Simultaneously, the teeth arrangement position of the drill bit and the material selection aim at the stratum with different hardness. The tooth abrasion is reduced and the service life of the drill bit is prolonged.
Description
Technical field
The utility model relates to the petroleum geology exploration technical field, and the specific drilling tool of particularly a kind of mountain region rock drilling machine is a kind of pneumatic bore bit that has impact and scraping function simultaneously.
Background technology
The drilling tool bore bit of mountain region rock drilling machine is the critical component of rig.The structure of bore bit directly influences drill drilling efficient and drilling cost.
At present, mainly contain shallow bore hole hammer air and technologies such as foam drilling, scraper air drilling or scraper mud drilling in the construction of recombination region, mountain region exploration drilling.The main problem that exists: 1, shallow bore hole hammer air foam well-drilling: a) the shallow bore hole hammer stops up easily, have to carry brill repeatedly after stopping up, and influences drilling efficiency; B) impactor cylinder sleeve and piston wear are comparatively serious, penetrate layer of gravel after bit speed slower.2, scraper air drilling: be mainly used in top layer loess, need change impactor when meeting layer of gravel, otherwise drill bit wear and tear very easily, drilling efficiency is low; 3, scraper mud drilling: mainly the area, water source is being arranged, two kinds of processes are generally arranged.A kind of is earlier to bore soil layer with scraper, penetrates layer of gravel with shallow bore hole hammer air foam well-drilling then, after change mud drilling into, need change drill bit twice, another kind is directly to adopt mud drilling, need not more bit change, but bit life is shorter.
The utility model content
The purpose of this utility model is: provide compound stratum pneumatic dashing in a kind of mountain region to scrape bore bit, bore bit is had simultaneously impact and the scraping function, realize dashing to scrape combining, improve drilling efficiency; Overcome and change drilling tool, a difficult problem that drilling efficiency is low in the compound stratum drilling process of soft and hard alternation mountain region.
The technical solution adopted in the utility model is: compound stratum pneumatic dashing in mountain region scraped bore bit, mainly is made up of the pricker wing and pricker body, and the pricker body has centre bore, the passage of air process when centre bore is drilling well.It is characterized in that: the external surface at the pricker body has spline, and spline can drive the pricker wing and the rotation of pricker body pneumatic breaking through in the journey.At the end of pricker body bore bit, bore bit is made up of three pricker wings.The pricker wing is a circular arc, and the pricker wing is skewed, and the center line angle of the pricker wing and pricker body is between 5～20 degree.Between the pricker wing, nozzle is arranged.Pricker body centre bore is communicated with nozzle.Top at the pricker wing is fixed with centre tooth, is fixed with scoop chisel insert in pricker wing arc transition section, is fixed with heel teeth in the pricker tip extension.
Described heel teeth and centre tooth are columned carbide alloy or diamond.
Heel teeth, scoop chisel insert and centre tooth adopt method of brazing to be fixed on the outer wall of the pricker wing.
Compound stratum pneumatic dashing in mountain region scraped the bore bit major function: in the drilling process of the complicated mountain region of soft and hard alternation; the solid rock layer that cylindrical center tooth fragmentation such as gravel is the same; scoop chisel insert rotation scraping loess, red soil floor and mud stone etc. are relatively than soft formation, and cylindrical heel teeth plays auxiliary scraping action and guarantees into well diameter, the protection borehole wall.The air communication of impactor inner chamber is crossed the centre bore of pricker body and is blown out from nozzle, makes landwaste pass through the chip area between the pricker wing, discharges well head along the borehole wall.
The beneficial effects of the utility model: compound stratum pneumatic dashing in the utility model mountain region scraped bore bit, based on scraping, improves drilling efficiency.Solve the difficult problem of present complicated mountain region strata drilling technology, can use a bore bit to break into a bite well, saved the difficult problem of middle replacing bore bit.Simultaneously, the mountain region compound stratum is pneumatic to be at the soft and hard alternation stratum towards the tooth distributing position and the selecting for use of material of scraping bore bit, can reduce the wearing and tearing of tooth, prolongs service life of the bits.
Description of drawings
Fig. 1 is that compound stratum pneumatic dashing in the utility model mountain region scraped the bore bit structural representation.
Fig. 2 is the left view of Fig. 1, is that compound stratum pneumatic dashing in mountain region scraped bore bit structure semi-section schematic diagram.
Fig. 3 is the vertical view of Fig. 1.
Among the figure, 1. heel teeth, 2. scoop chisel insert, 3. centre tooth, 4. nozzle, 5. the pricker wing, 6. centre bore, 7. pricker body, 8. spline.
The specific embodiment
Embodiment 1: dash so that mountain region compound stratum is pneumatic that to scrape bore bit be example, the utility model is described in further detail.
Consult Fig. 1.Compound stratum pneumatic dashing in the utility model mountain region scraped bore bit, mainly is made up of the pricker wing 5 and pricker body 7.Consult Fig. 2.Pricker body 7 has centre bore 6.External surface at pricker body 7 has spline 8.Consult Fig. 3.At the end of pricker body 7 bore bit, bore bit is made up of three pricker wings 5.Consult Fig. 1.The pricker wing 5 is a circular arc, and the pricker wing 5 is skewed, and the pricker wing 5 is 7 degree with the center line angle of pricker body 7.Have three oblique nozzles 4, nozzle 4 is between the pricker wing 5.Pricker body 7 centre bores 6 are communicated with nozzle 4.
Consult Fig. 2.Be fixed with centre tooth 3 at the top of the pricker wing 5, centre tooth 3 is columned carbide alloy.Be fixed with scoop chisel insert 2 in the pricker wing 5 arc transition sections.Be fixed with heel teeth 1 in the pricker wing 5 ends, heel teeth 1 is columned carbide alloy.Heel teeth 1, scoop chisel insert 2 and centre tooth 3 adopt method of brazing to be fixed on the outer wall of the pricker wing 5.
Claims (3)
1. pneumatic the dashing of mountain region compound stratum scraped bore bit, mainly form by the pricker wing (5) and pricker body (7), pricker body (7) has centre bore (6), the passage of centre bore (6) air process when being drilling well, it is characterized in that: the external surface at pricker body (7) has spline (8), end bore bit at pricker body (7), bore bit is made up of three pricker wings (5), the pricker wing (5) is a circular arc, the pricker wing (5) is skewed, the center line angle of the pricker wing (5) and pricker body (7) is between 5～20 degree, nozzle (4) is arranged between the pricker wing (5), and pricker body (7) centre bore (6) is communicated with nozzle (4), is fixed with centre tooth (3) at the top of the pricker wing (5), be fixed with scoop chisel insert (2) in the pricker wing (5) arc transition section, be fixed with heel teeth (1) in the pricker wing (5) end.
2. compound stratum pneumatic dashing in mountain region according to claim 1 scraped bore bit, it is characterized in that: described heel teeth (1) and centre tooth (3) are columned carbide alloy or diamond.
3. compound stratum pneumatic dashing in mountain region according to claim 1 scraped bore bit, it is characterized in that: heel teeth (1), scoop chisel insert (2) and centre tooth (3) adopt method of brazing to be fixed on the outer wall of the pricker wing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202462391U CN201517371U (en) | 2009-10-13 | 2009-10-13 | Pneumatic punching scraping drill bit of mountainous composite stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202462391U CN201517371U (en) | 2009-10-13 | 2009-10-13 | Pneumatic punching scraping drill bit of mountainous composite stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517371U true CN201517371U (en) | 2010-06-30 |
Family
ID=42498093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202462391U Expired - Lifetime CN201517371U (en) | 2009-10-13 | 2009-10-13 | Pneumatic punching scraping drill bit of mountainous composite stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223855A (en) * | 2016-09-06 | 2016-12-14 | 浙江省交通工程建设集团有限公司 | A kind of Pneumatic control type for embedded rock pile hard-soft heterogeneous ground cuts rock device |
-
2009
- 2009-10-13 CN CN2009202462391U patent/CN201517371U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223855A (en) * | 2016-09-06 | 2016-12-14 | 浙江省交通工程建设集团有限公司 | A kind of Pneumatic control type for embedded rock pile hard-soft heterogeneous ground cuts rock device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100630 |
|
| CX01 | Expiry of patent term |