CN112377129A - Drilling machine with coring drill barrel convenient to cool - Google Patents
Drilling machine with coring drill barrel convenient to cool Download PDFInfo
- Publication number
- CN112377129A CN112377129A CN202011274275.6A CN202011274275A CN112377129A CN 112377129 A CN112377129 A CN 112377129A CN 202011274275 A CN202011274275 A CN 202011274275A CN 112377129 A CN112377129 A CN 112377129A
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- Prior art keywords
- drill
- hole
- flange
- barrel
- cooling
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- 238000005553 drilling Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 74
- 238000005520 cutting process Methods 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002826 coolant Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a core drill cylinder convenient to cool, which comprises: an intermediate drill barrel, a cutting drill barrel, a plurality of cooling pipes and a flange. The middle drill barrel is provided with a drill barrel axial direction. The intermediate drill bit has a first drill bit end and a second drill bit end in the axial direction of the drill bit. The middle drill cylinder forms a plurality of through hole grooves. The plurality of cooling pipes are sequentially arranged in the through hole grooves. The cutting drill cylinder is coaxially arranged at the first drill cylinder end of the middle drill cylinder. The flange is arranged at the second drill cylinder end. Through the mode of setting up the through-hole recess at the drill collar surface and then setting up the cooling tube, reduced the processing degree of difficulty and simple structure, the installation of being convenient for is implemented. According to the invention, the cooling through holes are formed in the drill cylinder, so that a cooling medium can continuously act on the cutting surface during operation of the drill cylinder, the continuous cooling effect is realized, the abrasion of the cutter is reduced, and the service life of the cutter is long. Meanwhile, the invention also provides a drilling machine.
Description
Technical Field
The invention relates to the field of engineering machinery. The invention particularly relates to a coring drill barrel and a drilling machine which are convenient to cool.
Background
The barrel drill is mainly used for taking a barrel from a stratum. The drill barrel drills the formation primarily through the end bit. During the process of drilling the stratum, the drill bit can cut and collide various rock stratums in the stratum, and the temperature of heat generated by the drill bit needs to be reduced in time so as to ensure long-term use and better cutting performance. In the prior art, a cooling water pipe is additionally arranged on the outer side of a drill cylinder to cool a drill bit. In the operation process, flow to drill bit department through cooling water and cool down, nevertheless because its drill bit is little with the clearance in rock stratum in the cutting process to can't guarantee to make cooling water flow to drill bit department when the operation, can't reduce the drill bit temperature, aggravate the drill bit wearing and tearing, life cycle is short.
Disclosure of Invention
The invention aims to provide a core drill barrel convenient to cool, which directly cools the surface of a drill bit through a plurality of cooling pipes, has a simple structure, is easy to realize, reduces the abrasion of the drill bit, has long service life and saves energy consumption.
The drill bit of the drilling machine is not easy to wear, the service life is long, and the energy consumption is saved.
In a first aspect, the present invention provides a core barrel for facilitating cooling, comprising: an intermediate drill barrel, a cutting drill barrel, a plurality of cooling pipes and a flange. Wherein:
the middle drill barrel is provided with a drill barrel axial direction. The intermediate drill bit has a first drill bit end and a second drill bit end in the axial direction of the drill bit.
Forming an intermediate drill cylinder: a coring through-hole, a plurality of through-hole grooves. The coring through hole is formed along the axial direction of the drill cylinder. The two ends of the coring through hole are respectively communicated with the first drill cylinder end and the second drill cylinder end. The first barrel end includes a first annular face perpendicular to the axial direction of the barrel. The second barrel end includes a second annular surface perpendicular to the axial direction of the barrel.
The plurality of through hole grooves are uniformly formed around the axis of the middle drill cylinder along the circumferential direction of the middle drill cylinder. The extending direction of the through hole groove is parallel to the axial direction of the drill cylinder, and two ends of the through hole groove are respectively communicated with the first annular surface of the first drill cylinder end and the second annular surface of the second drill cylinder end.
And the cooling pipes are sequentially arranged in the through hole grooves. The inner hole of the cooling pipe is a cooling through hole. The extending direction of the cooling through hole is parallel to the axial direction of the drill cylinder, and two ends of the cooling through hole are respectively communicated with the first annular surface of the first drill cylinder end and the second annular surface of the second drill cylinder end.
The cutting drill cylinder is coaxially arranged at the first drill cylinder end of the middle drill cylinder and is provided with an annular cutting surface vertical to the axial direction of the cutting drill cylinder. The annular cutting surface is a surface of the cutting drill cylinder far away from the middle drill cylinder. The cutting drill cylinder uniformly forms a plurality of liquid supply through holes around the axis of the cutting drill cylinder along the circumferential direction of the cutting drill cylinder. The extending direction of the liquid supply through hole is parallel to the axis of the cutting drill cylinder, and two ends of the liquid supply through hole are respectively communicated with the cooling through hole and the annular cutting surface.
The flange is arranged at the second drill cylinder end. The flange has a flange aperture and has a flange annulus communicating with the flange aperture. The ring surface of the flange is fixedly connected with the second ring surface in a fitting manner, and the axis of the flange hole is positioned in the axial direction of the drill cylinder. An annular groove is formed on the ring surface of the flange around the center of the flange hole. The annular groove is communicated with the cooling through hole; the flange is also provided with a flange bottom surface parallel to the flange annular surface; the bottom surface of the flange is communicated with the flange hole; and an oil inlet hole is formed on the bottom surface of the flange around the center of the flange hole. The oil inlet hole is communicated with the annular groove.
In another embodiment of the present invention for facilitating cooling of a coring bit barrel, the annular cutting surface comprises: a plurality of cutting tips. The plurality of cutting blades are sequentially arranged around the axis of the cutting drill cylinder, and the cutting surfaces of the cutting blades are parallel to each other.
In yet another embodiment of the core barrel of the present invention that facilitates cooling, the number of through-hole recesses is between 8 and 10. The outer diameter of the cooling pipe is 16 mm-18 mm. The diameter of the cooling through hole is phi 10 mm-phi 12 mm.
In yet another embodiment of the core drill barrel of the present invention that facilitates cooling, a plurality of oil feed holes are formed in the bottom surface of the flange around the center of the flange hole. The oil inlet hole is communicated with the annular groove. A coring bit that facilitates cooling comprising: a plurality of oil feed shutoff, it can the shutoff in the inlet port.
In yet another embodiment of the present invention for facilitating cooling of a coring bit barrel, the oil feed shutoff is a threaded shutoff having a G3/4.
In yet another embodiment of the present core drill barrel that facilitates cooling, a plurality of oil storage holes are formed in the annular groove circumferentially thereof. The plurality of oil storage holes extend in a direction perpendicular to the axis of the flange hole.
In yet another embodiment of the core drill barrel of the present invention that facilitates cooling, the flange further comprises a flange boss. The flange boss is formed on the annular surface of the flange and can be positioned in the coring through hole. A plurality of oil storage chambers are formed on the bottom surface of the flange around the center of the flange hole. The oil storage cavity is positioned in the flange boss and communicated with the oil storage hole.
In yet another embodiment of the present invention for facilitating cooling of the core drill barrel, the bottom of the annular groove is an arcuate surface distal from the inside of the groove of the annular groove.
In yet another embodiment of the present invention for facilitating cooling of the core barrel, the outer diameter of the middle barrel is between 900mm and 1000 mm.
In a second aspect of the invention, there is provided a drilling rig comprising apparatus for facilitating cooling of a core barrel as in any one of the above embodiments.
The features, technical characteristics, advantages and realisation of the core drill barrel and drill rig facilitating cooling will be further described in a clearly understandable manner in connection with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram illustrating the orientation of the flanges of a coring bit that facilitates cooling in one embodiment of the present invention.
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1, according to an embodiment of the present invention.
Fig. 3 is a schematic partial circumferential cross-sectional view for explaining an intermediate drill pipe according to an embodiment of the present invention.
FIG. 4 is a schematic diagram illustrating an exploded view of a coring bit that facilitates cooling in one embodiment of the present invention.
Fig. 5 is a schematic partial sectional view for explaining a flange portion in another embodiment of the present invention.
Fig. 6 is a schematic partial sectional view for explaining a flange portion in still another embodiment of the present invention.
FIG. 7 is a schematic perspective view illustrating the flange side of a coring bit that facilitates cooling in one embodiment of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative. For the sake of simplicity, the drawings only schematically show the parts relevant to the present exemplary embodiment, and they do not represent the actual structure and the true scale of the product.
As shown in FIGS. 1-7, the present invention provides a core barrel for cooling, comprising: an intermediate drill barrel 10, a cutting drill barrel 20, a plurality of cooling pipes 30 and a flange 40. Wherein:
as shown in fig. 2, the intermediate drill bit 10 has a bit axial direction 11. The intermediate drill shaft 10 has a first drill shaft end 12 and a second drill shaft end 13 in the drill shaft axial direction 11.
As shown in fig. 2 and 3, the intermediate drill barrel 10 forms: a coring through-hole 14 and a plurality of through-hole recesses 15. Coring through-holes 14 are formed along the drill barrel axial direction 11. The two ends of the coring through hole 14 are respectively communicated with the first drill bit end 12 and the second drill bit end 13. As shown in FIG. 4, the first barrel end 12 includes a first annular surface 16 perpendicular to the axial direction 11 of the barrel. The second drill bit end 13 comprises a second annular surface 17 perpendicular to the axial direction of the drill bit.
As shown in fig. 2 and 3, a plurality of through-hole grooves 15 are formed uniformly around the axial center of the intermediate drill 10 in the circumferential direction of the intermediate drill 10. The through hole groove 15 extends in a direction parallel to the drill bit axial direction 11 and has two ends communicating with a first annular surface 16 of the first drill bit end 12 and a second annular surface 17 of the second drill bit end 13, respectively.
As shown in fig. 2, 3, and 4, the plurality of cooling pipes 30 are sequentially disposed in the through-hole groove 15. The inner bore of the cooling tube 30 is the cooling through hole 18. The cooling through hole 18 extends in a direction parallel to the drill bit axial direction 11 and communicates at both ends with the first annular surface 16 of the first drill bit end 12 and the second annular surface 17 of the second drill bit end 13, respectively.
As shown in fig. 4, the cutting drill bit 20 is arranged coaxially with the first drill bit end 12 of the intermediate drill bit 10 and has an annular cutting surface 21 perpendicular to the axial direction of the cutting drill bit 20. The annular cutting face 21 is the face of the cutting drill barrel 20 remote from the intermediate drill barrel 10. The cutting drill cylinder 20 is formed with a plurality of liquid supply through holes 22 uniformly around the axial center of the cutting drill cylinder 20 along the circumferential direction of the cutting drill cylinder 20. The liquid supply through hole 22 extends in a direction parallel to the axis of the cutting drill cylinder 20 and has two ends respectively communicated with the cooling through hole 18 and the annular cutting surface 21.
As shown in fig. 2, 4 and 7, a flange 40 is provided at the second barrel end 13. The flange 40 has a flange aperture 42 and has a flange annulus 41 communicating with the flange aperture 42. The flange ring surface 41 is in fixed connection with the second ring surface 17, and the axis of the flange hole 42 is located in the axial direction 11 of the drill cylinder. An annular groove 43 is formed in the flange annulus 41 about the center of the flange bore 42. The annular groove 43 communicates with the cooling through hole 18. The flange 40 also has a flange bottom surface 44 parallel to the flange annulus 41. The flange bottom surface 44 is communicated with the flange hole 42; an oil inlet hole 45 is formed in the flange bottom surface 44 around the center of the flange hole 42. The oil inlet hole 45 communicates with the annular groove 43.
When the core drill barrel convenient for cooling is used, as shown in fig. 1 and 4, on one hand, a cooling medium can be injected into the annular groove 43 from the oil inlet 45, and the annular groove 43 is communicated with the plurality of cooling through holes 18, so that the cooling through holes 18 are filled with the cooling medium. When the drill cylinder is drilled, the axial direction 11 of the drill cylinder is vertical to the drilling surface, and a cooling medium is left from the annular cutting surface 21 under the action of gravity to play a role in cooling the annular cutting surface cutter.
On the other hand, in the drilling process, a cooling medium can be injected into the flange end of the core drill cylinder or the core drill cylinder is immersed into the cooling medium, so that the cooling medium is injected into the annular groove 43 from the oil inlet hole 45 during the operation of the core drill cylinder, and the liquid is continuously supplied into the cooling through hole 18, thereby playing a role in continuously reducing the temperature in connection with the operation.
According to the invention, the through hole groove is formed on the outer surface of the drill cylinder, and the cooling pipe is arranged, so that the processing difficulty is reduced, the structure is simple, and the installation and implementation are convenient.
According to the invention, the cooling through holes are formed in the drill cylinder, so that a cooling medium can continuously act on the cutting surface during operation of the drill cylinder, the continuous cooling effect is realized, the abrasion of the cutter is reduced, and the service life of the cutter is long.
In another embodiment of the present invention for facilitating cooling of a coring bit barrel, as shown in FIG. 1, the annular cutting surface 21 comprises: a plurality of cutting tips 23. The plurality of cutting blades are arranged in order around the axis of the cutting drill cylinder 20 and the cutting surfaces of the cutting bit 23 are parallel to each other. Thereby achieving better drilling effect.
In yet another embodiment of the core barrel of the present invention to facilitate cooling, the number of through-hole recesses 15 is 8 to 10. The outer diameter of the cooling pipe 30 is 16mm to 18 mm. The diameter of the cooling through hole 18 is phi 10 mm-phi 12 mm. Thereby ensuring the drilling strength.
In yet another embodiment of the present core drill barrel for cooling, as shown in FIG. 1, a plurality of oil inlet holes 45 are formed in the bottom surface 44 of the flange about the center of the flange hole 42. A coring bit that facilitates cooling comprising: a plurality of oil feed plugs 50. The oil inlet plug 50 can plug the oil inlet hole 45. Therefore, the injected cooling medium is not easy to reserve out in a reversed phase, and the operation is easier, and the injection of the cooling medium can be realized if the drill barrel is horizontally placed.
In yet another embodiment of the present invention for facilitating cooling of a core drill barrel, the oil feed plug 50 is a threaded plug having G3/4. Thereby ensuring the sealing strength.
In yet another embodiment of the present core drill barrel for cooling, as shown in FIG. 5, a plurality of oil storage holes 46 are formed in the annular groove 43 in the circumferential direction of the annular groove 43. The plurality of oil holes 46 extend in a direction perpendicular to the axis of the flange hole 42. A reserve hole 46 is formed from the side of the flange 40. The oil reservoir 46 extends toward the axial center of the flange, i.e., is perforated into the flange. The seal 461 is welded to the opening of the oil reservoir 46 formed in the side of the flange 40.
Therefore, the oil storage hole can store cooling medium, and the cooling medium in the oil storage hole can be injected into the cooling through hole under the action of centrifugal force when the drill barrel rotates. When the external cooling medium is interrupted or the cooling medium flowing out of the annular groove is insufficient, it is ensured that there is sufficient cooling medium in the cooling through hole.
In yet another embodiment of the present invention for facilitating cooling of a core drill barrel, as shown in FIGS. 1 and 6, the flange 40 also has a flange projection 47. A flange boss 47 is formed on the annular face of the flange 40 and can be located in the coring through-hole 14. A plurality of oil reservoir chambers 48 are formed in the flange bottom surface 44 around the center of the flange hole 42. The oil reservoir chamber 48 is located in the flange boss 47 and communicates with the oil reservoir hole 46. The oil reservoir chamber 48 extends inward of the flange boss 47. The plug 481 plugs the opening of the oil reservoir 48 by welding. Thereby, the storage of the cooling medium is more sufficient, and the cooling medium in the cooling through hole is ensured.
In yet another embodiment of the present invention for facilitating cooling of the core drill barrel, the bottom of the annular recess 43 is an arcuate surface facing away from the slot in the annular recess 43. Thereby facilitating the flow of the cooling medium.
In yet another embodiment of the present invention for facilitating cooling of the core barrel, the outer diameter of the middle barrel 10 is between 900mm and 1000 mm.
In a second aspect of the invention, there is provided a drilling rig comprising apparatus for facilitating cooling of a core barrel as in any one of the above embodiments.
It should be understood that although the present description is described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein as a whole may be suitably combined to form other embodiments as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A coring bit cartridge for facilitating cooling, comprising:
an intermediate drill bit having a bit axis; the middle drill barrel is provided with a first drill barrel end and a second drill barrel end along the axial direction of the drill barrel;
the intermediate drill barrel forms:
a coring through-hole formed axially along the drill barrel; two ends of the coring through hole are respectively communicated with the first drill pipe end and the second drill pipe end; said first barrel end including a first annular face oriented perpendicular to an axial direction of said barrel; said second barrel end including a second annular surface perpendicular to the axial direction of said barrel;
a plurality of through-hole grooves formed uniformly around the axis of the intermediate drill barrel in the circumferential direction of the intermediate drill barrel; the extending direction of the through hole groove is parallel to the axial direction of the drill cylinder, and two ends of the through hole groove are respectively communicated with a first annular surface at the first drill cylinder end and a second annular surface at the second drill cylinder end;
a plurality of cooling pipes sequentially arranged in the through hole grooves; the inner hole of the cooling pipe is a cooling through hole; the extending direction of the cooling through hole is parallel to the axial direction of the drill cylinder, and two ends of the cooling through hole are respectively communicated with a first annular surface at the first drill cylinder end and a second annular surface at the second drill cylinder end;
a cutting drill cylinder coaxially arranged at the first drill cylinder end of the middle drill cylinder and provided with an annular cutting surface vertical to the axial direction of the cutting drill cylinder; the annular cutting surface is a surface of the cutting drill cylinder far away from the middle drill cylinder; the cutting drill cylinder uniformly forms a plurality of liquid supply through holes around the axis of the cutting drill cylinder along the circumferential direction of the cutting drill cylinder; the extending direction of the liquid supply through hole is parallel to the axis of the cutting drill cylinder, and two ends of the liquid supply through hole are respectively communicated with the cooling through hole and the annular cutting surface;
a flange disposed at the second drill bit end; the flange is provided with a flange hole and a flange ring surface communicated with the flange hole; the ring surface of the flange is fixedly connected with the second ring surface in a fitting manner, and the axis of the flange hole is positioned in the axial direction of the drill cylinder; an annular groove is formed on the annular surface of the flange around the center of the flange hole; the annular groove is communicated with the cooling through hole; the flange is also provided with a flange bottom surface parallel to the flange annular surface; the bottom surface of the flange is communicated with the flange hole; and an oil inlet hole is formed on the bottom surface of the flange around the center of the flange hole and communicated with the annular groove.
2. The coring bit cartridge of claim 1, wherein the annular cutting face comprises: a plurality of cutting bits; the plurality of cutting knives are sequentially arranged around the axis of the cutting drill cylinder, and the cutting surfaces of the cutting knife heads are parallel to each other.
3. The core drill barrel as recited in claim 1, wherein the number of said through-hole recesses is 8-10; the outer diameter of the cooling pipe is 16-18 mm; the diameter of the cooling through hole is phi 10 mm-phi 12 mm.
4. The core barrel as set forth in claim 1, wherein a plurality of oil feed holes are formed on the bottom surface of said flange around the center of said flange hole; the oil inlet hole is communicated with the annular groove;
the coring bit barrel facilitating cooling comprises: and the oil inlet plugs can be plugged in the oil inlet holes.
5. The core drill barrel as recited in claim 4, wherein said oil feed plug is a threaded plug having a G3/4.
6. The core barrel as set forth in claim 3, wherein a plurality of oil reservoirs are formed in said annular groove circumferentially thereof; the extending direction of the oil storage holes is perpendicular to the axis of the flange hole.
7. The core barrel as set forth in claim 4, wherein said flange further has a flange boss; the flange boss is formed on the annular surface of the flange and can be positioned in the coring through hole;
a plurality of oil storage cavities are formed on the bottom surface of the flange around the center of the flange hole; the oil storage cavity is located in the flange boss and communicated with the oil storage hole.
8. The core barrel as set forth in claim 1, wherein the bottom of said annular groove is arcuate away from the inside of said annular groove.
9. The coring drill cartridge of claim 1, wherein the outer diameter of the intermediate drill cartridge is from 900mm to 1000 mm.
10. A drilling rig comprising a core barrel assembly for facilitating cooling as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011274275.6A CN112377129B (en) | 2020-11-15 | 2020-11-15 | Drilling machine with coring drill barrel convenient to cool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011274275.6A CN112377129B (en) | 2020-11-15 | 2020-11-15 | Drilling machine with coring drill barrel convenient to cool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112377129A true CN112377129A (en) | 2021-02-19 |
| CN112377129B CN112377129B (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011274275.6A Active CN112377129B (en) | 2020-11-15 | 2020-11-15 | Drilling machine with coring drill barrel convenient to cool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112377129B (en) |
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| GB9930845D0 (en) * | 1999-01-12 | 2000-02-16 | Baker Hughes Inc | Method of drilling a subterranean formation employing an oscillating drill bit |
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| GB9930845D0 (en) * | 1999-01-12 | 2000-02-16 | Baker Hughes Inc | Method of drilling a subterranean formation employing an oscillating drill bit |
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| Publication number | Publication date |
|---|---|
| CN112377129B (en) | 2023-02-03 |
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