CN202788631U - Hydraulic jet drill - Google Patents
Hydraulic jet drill Download PDFInfo
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- CN202788631U CN202788631U CN 201220395012 CN201220395012U CN202788631U CN 202788631 U CN202788631 U CN 202788631U CN 201220395012 CN201220395012 CN 201220395012 CN 201220395012 U CN201220395012 U CN 201220395012U CN 202788631 U CN202788631 U CN 202788631U
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Abstract
A hydraulic jet drill comprises a cavity drill body, wherein water spray holes are arranged in the drill body, and comprise main water spray holes and auxiliary water spray holes. The hydraulic jet drill is characterized in that the main water spray holes are arranged on a flat plane of the front end of the drill body, incline upwards and outwards opposite to the axis direction of the drill body, are evenly distributed with the axis of the drill body as the center in a radiation mode, and respectively form a clockwise dip angle along the tangential direction. The auxiliary water spray holes comprise middle holes and rear end inclined holes. The middle holes are evenly arranged in the outer wall of the middle portion of the drill body along the circumference radial direction, and communicated with a drill body cavity. The axes of the middle holes are perpendicular to the axis of the drill body, and the rear end inclined holes are evenly distributed on the same circumference of the rear portion of the drill body, communicated with the cavity and incline towards the center of the cavity. The hydraulic jet drill has the advantages of boosting, broaching holes and draining sand, solving the problems that the water spray holes are small, the drill is slow in boosting speed in drilling from a long distance, the sand draining is difficult, and the water spray holes are easy to block, improving construction quality and efficiency, being simple in structure and convenient to manufacture.
Description
Technical field
The utility model relates to the earth-boring instrument that uses under a kind of coal mine, particularly a kind of hydraulic jet bit.
Background technology
Coal mine underground coal bed boring mainly is to discharge geostatic stress and draw out methane, in order to carry out safe coal production, coal bed drilling mainly adopts auger stem at present, and in the majority with air drill, usually drilling depth is difficult to above 100 meters, also often because bit freezing or bit bouncing cause drilling rod overheated or abandon in the coal seam because extracting, cause later stage coal mining potential safety hazard or accident.At present, existing people is that rock is broken in jetting with the rotary drilling method improvement, still, the jetting boring bar tool, because of Structure Designing Problem, the drill bit fltting speed is slow during the little and long distance boring of the eyelet of spraying water, sediment outflow is difficult, spray orifice easily stops up, and affects construction quality and efficient.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, realizes a kind of hydraulic jet bit.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of hydraulic jet bit, comprise the cavity bit body, bit body is provided with hole for water spraying, described hole for water spraying comprises main jet water hole and auxiliary hole for water spraying, it is characterized in that: described main jet water hole is located on the front transverse plane of bit body, outward-dipping formation angle α on bit body axis direction dorsad, radially uniform arrangement centered by the bit body axis, tangentially form respectively clockwise angle of inclination beta, auxiliary hole for water spraying comprises interstitial hole and rear end inclined hole, interstitial hole is located on the outer wall of bit body middle part along the circumference radial equipartition, is communicated with the bit body cavity, and the interstitial hole axis is vertical with the bit body axis, the rear end inclined hole is distributed on the same circumference in bit body rear portion, is communicated with cavity and tilts to cavity center.
Described angle α is 2 °-10 °.
Described clockwise angle of inclination beta is 5 °-15 °.
Described main jet water hole is divided into inside and outside two circles, and the quantity in inner ring main jet water hole and main jet water hole, outer ring is respectively 3-5, and the main jet water hole of inside and outside circle is staggered.
Described interstitial hole is circle or staggered two circles, 3 of the uniform at least arrangements of every circle.
Angle between the axis of described rear end inclined hole and the axis of bit body is 30 °-70 °.
The quantity of described rear end inclined hole is at least 3.
Described hole for water spraying is unthreaded hole or shoulder hole.
Described bit body front end is with the hemisphere on plane or cone or paraboloid of revolution body.
Inclined hole place, rear end is set on the bit body outer wall, is provided with circle " V " shape groove or a transition inclined-plane.
Beneficial effect:
1, the utility model hydraulic jet bit utilizes hydraulic jetting drilling technology to break rock, does not need bit, and broken rock speed is fast, and efficient is high, and rub proofness is high, prolongs drilling life of bit;
2, ejection high pressure liquid stream in the main jet water hole of the utility model hydraulic jet bit front end is impacted and broken rock, the rear end inclined hole advances shower nozzle to move ahead, simultaneously, the liquid of spray flows again reaming and the rock stratum sand grains of fragmentation is discharged backward, have propelling, reaming and sediment outflow three large functions, the drill bit fltting speed is slow when having solved the little and long distance boring of water spray eyelet, sediment outflow is difficult, the problem that spray orifice easily stops up, improve construction quality and efficiency of construction, reduced construction cost;
3, the main jet water of the utility model hydraulic jet bit front end tangentially forms clockwise inclination angle, like this so that the utility model hydraulic jet bit upwards produces clockwise moment of torsion at drill bit shaft, it is tightr that drill bit is connected with high-pressure hose, prevents the back-off phenomenon;
4, the interstitial hole of the utility model hydraulic jet bit is arranged on the sprayer body middle part along the circumference radial equipartition, the interstitial hole axis is vertical with the bit body axis, guarantee that shower nozzle is middle in boring all the time at drilling process, when preventing the drill bit injection eyelet track is impacted, improve construction quality;
5, the utility model hydraulic jet bit is arranging inclined hole place, rear end, and bit body is provided with circle " V " shape groove or a transition inclined-plane, makes things convenient for the processing and fabricating of rear end inclined hole, improves working (machining) efficiency and machining accuracy;
6, the power of the utility model hydraulic jet bit employing is water under high pressure, has certain dustproof effect, has protected construction environment, and can not produce holding brill phenomenon, also can not produce superheating phenomenon, has improved the safety of underground work;
7, the utility model hydraulic jet bit is the integral type structure, and is simple in structure, and manufacturing, easy to use is easy to promotion and implementation.
Description of drawings
Fig. 1 is one of the utility model hydraulic jet bit structural representation;
Fig. 2 is one of plan structure schematic diagram of the utility model hydraulic jet bit;
Fig. 3 is one of A-A sectional structure schematic diagram among Fig. 1;
Fig. 4 is the side deployed configuration schematic diagram in the main jet water hole of the utility model hydraulic jet bit;
Fig. 5 be among Fig. 1 A-A sectional structure schematic diagram two;
Fig. 6 is two of the utility model hydraulic jet bit structural representation;
Fig. 7 is three of the utility model hydraulic jet bit structural representation;
Fig. 8 is four of the utility model hydraulic jet bit structural representation;
Fig. 9 be the utility model hydraulic jet bit the plan structure schematic diagram two;
Figure 10 is five of the utility model hydraulic jet bit structural representation.
Among the figure: 1-bit body, 2-main jet water hole, 3-interstitial hole, 4-rear end inclined hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model hydraulic jet bit is described in further detail:
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of hydraulic jet bit, comprise cavity bit body 1, bit body 1 front end is the hemisphere with the plane, bit body 1 is provided with hole for water spraying, hole for water spraying is unthreaded hole, described hole for water spraying comprises main jet water hole 2 and auxiliary hole for water spraying, main jet water hole 2 is located on the front transverse plane of bit body, outward-dipping formation angle α on bit body 1 axis direction dorsad, and angle α is 2 °-10 °, radially uniform arrangement centered by bit body 1 axis, tangentially form respectively clockwise angle of inclination beta, angle of inclination beta is 5 °-15 ° clockwise, and quantity is 3.Bit body 1 front end arranges the plane, not only is convenient to the processing in main jet water hole 2, also helps step by step broken rock.Main jet water hole 2 on bit body 1 axis direction dorsad outward-dipping 2 °-10 ° is dispersed the outside of the current direction bit body 1 of main jet water hole 2 ejections, enlarges the projected area on the rock stratum, forms a macropore.Main jet water hole 2 Main Function that tangentially tilts is the projected area of enlarge hole for water spraying 2, because drill bit is to send to while spraying when broken rock, do not stop conversion and spray site so that have the main jet water hole 2 at inclination angle, greatly enlarged projected area, form a large pore-forming.The clockwise inclination angle that main jet water hole 2 tangentially forms, so that the utility model hydraulic jet bit upwards produces clockwise moment of torsion at drill bit shaft, it is tightr that drill bit is connected with high-pressure hose, prevents the back-off phenomenon.
Auxiliary hole for water spraying comprises interstitial hole 3 and rear end inclined hole 4, interstitial hole 3 is located on the bit body 1 middle part outer wall along the circumference radial equipartition, be communicated with bit body 1 cavity, interstitial hole 3 axis are vertical with bit body 1 axis, rear end inclined hole 4 is distributed on the same circumference in bit body rear portion, is communicated with cavity and tilts to cavity center.The quantity of interstitial hole 2 is at least 3.Angle between the axis of the axis of rear end inclined hole 4 and bit body 1 is 30 °-70 °, quantity is at least 3, at bit body 1 outer wall inclined hole 4 places in rear end are set, be provided with circle " V " shape groove, rear end inclined hole 4 is arranged on the tapered plane of " V " shape groove, make things convenient for the processing of rear end inclined hole 4, guarantee machining accuracy.
During use, the drill bit rear end is fixedly connected with high-pressure hose, high-pressure hose is connected with the ground high pressure generating apparatus by high-voltage flexible steel pipe equal pressure delivery means, when having the ground high pressure generating apparatus to pump into highly pressurised liquid to drill bit, highly pressurised liquid is by the hole for water spraying ejection of hydraulic jet bit, high speed liquid flow impact and the broken rock of main jet water hole 2 ejections of bit body 1 front end, interstitial hole 2 is arranged on sprayer body 1 middle part along the circumference radial equipartition, cause interstitial hole 2 vertical with bit body 1, guarantee that shower nozzle is middle in boring all the time at drilling process, when preventing the drill bit injection eyelet track is impacted, 4 one-tenth of rear end inclined holes are oblique to distribute along even circumferential, advance moving ahead of drill bit, while liquid backward flows again reaming and the rock stratum sand grains of fragmentation is discharged, and has realized propelling, reaming and sediment outflow three large functions.
Embodiment two: basic identical with embodiment one, something in common does not repeat, and difference is: in order to increase liquid stream to the impact force of rock stratum, better break up the rock stratum, the quantity in main jet water hole is 4 (figure does not draw).
Embodiment three: basic identical with embodiment one, something in common does not repeat, and difference is: in order to increase liquid stream to the impact force of rock stratum, better break up the rock stratum, the quantity in main jet water hole is 5 (figure does not draw).
Embodiment three: referring to Fig. 5, and embodiment three and embodiment one structural similarity, represent meaning identical for identical label among the figure, do not repeat, and difference is: accelerate in order to give the liquid stream in the drill bit cavity, the hole for water spraying of setting is shoulder hole on the bit body 1.
Embodiment four: referring to Fig. 6, and embodiment four and embodiment one structural similarity, represent meaning identical for identical label among the figure, do not repeat, and difference is: the bit body front end is the cone with the plane.
Embodiment five: referring to Fig. 7, and embodiment four and embodiment one structural similarity, represent meaning identical for identical label among the figure, do not repeat, and difference is: the bit body front end is the paraboloid of revolution body with the plane.
Embodiment six: referring to Fig. 8, a kind of hydraulic jet bit comprises cavity bit body 1, and bit body 1 is provided with hole for water spraying, and hole for water spraying is unthreaded hole.Bit body 1 front end is the hemisphere with the plane.Hole for water spraying comprises 3 main jet water holes 2 and auxiliary hole for water spraying, main jet water hole 2 is located on the front transverse plane of bit body, 2 ° of-10 ° of angles of outward-dipping formation on bit body 1 axis direction dorsad, radially uniform arrangement centered by bit body 1 axis tangentially forms respectively 5 ° of-15 ° of clockwise inclination angles.
Auxiliary hole for water spraying comprises interstitial hole 3 and rear end inclined hole 4, interstitial hole 3 is located on the bit body 1 middle part outer wall along the circumference radial equipartition, be communicated with bit body 1 cavity, interstitial hole 3 axis are vertical with bit body 1 axis, have at least 3 interstitial holes 3 to be distributed on the outer wall at bit body 1 middle part.Rear end inclined hole 4 is distributed on the same circumference in bit body rear portion, is communicated with cavity and tilts to cavity center.Angle between the axis of the axis of rear end inclined hole 4 and bit body 1 is 30 °-70 °, and quantity is at least 3, and inclined hole 4 places in rear end are set on bit body 1 outer wall, be provided with the transition inclined-plane, rear end inclined hole 4 is arranged on the transition inclined-plane, makes things convenient for the processing of rear end inclined hole 4, guarantees machining accuracy.
Embodiment seven: referring to Fig. 9, a kind of hydraulic jet bit comprises cavity bit body 1, and bit body 1 is provided with hole for water spraying, and hole for water spraying is unthreaded hole.Bit body 1 front end is the hemisphere with the plane.Hole for water spraying comprises 3 main jet water holes 2 and auxiliary hole for water spraying, main jet water hole 2 is divided into inside and outside two circles and is located on the front transverse plane of bit body, the quantity in inner ring main jet water hole and main jet water hole, outer ring is respectively 3, the main jet water hole 2 of inside and outside circle is staggered, 2 ° of-10 ° of angles of outward-dipping formation on bit body 1 axis direction dorsad, radially uniform arrangement centered by bit body 1 axis tangentially forms respectively 5 ° of-15 ° of clockwise inclination angles.The staggered main jet of inside and outside two circles water hole 2 is set on the bit body 1 front transverse plane, has strengthened the water spray area in main jet water hole 2, accelerated penetration rate, improved efficiency of construction.
Auxiliary hole for water spraying comprises interstitial hole 3 and rear end inclined hole 4, interstitial hole 3 is located on the bit body 1 middle part outer wall along the circumference radial equipartition, be communicated with bit body 1 cavity, interstitial hole 3 axis are vertical with bit body 1 axis, have at least 3 interstitial holes 3 to be distributed on the outer wall at bit body 1 middle part.Rear end inclined hole 4 is distributed on the same circumference in bit body rear portion, is communicated with cavity and tilts to cavity center.Angle between the axis of the axis of rear end inclined hole 4 and bit body 1 is 30 °-70 °, and quantity is at least 3, and inclined hole 4 places in rear end are set on bit body 1 outer wall, be provided with the transition inclined-plane,, rear end inclined hole 4 is arranged on the transition inclined-plane, make things convenient for the processing of rear end inclined hole 4, guarantee machining accuracy.
Embodiment eight: basic identical with embodiment seven, something in common does not repeat, and difference is: in order to increase liquid stream to the impact force of rock stratum, better break up the rock stratum, the quantity in inner ring main jet water hole and main jet water hole, outer ring is respectively 4 (figure does not draw).
Embodiment nine: basic identical with embodiment seven, something in common does not repeat, and difference is: in order to increase liquid stream to the impact force of rock stratum, better break up the rock stratum, the quantity in circle main jet water hole and main jet water hole, outer ring is respectively 5 (figure does not draw).
Embodiment ten: referring to Figure 10, a kind of hydraulic jet bit comprises cavity bit body 1, and bit body 1 is provided with hole for water spraying, and hole for water spraying is unthreaded hole.Bit body 1 front end is the hemisphere with the plane.Hole for water spraying comprises 3 main jet water holes 2 and auxiliary hole for water spraying, main jet water hole 2 is located on the front transverse plane of bit body, on bit body 1 axis direction dorsad outward-dipping on bit body 1 axis direction dorsad 2 ° of-10 ° of angles of outward-dipping formation, radially uniform arrangement centered by bit body 1 axis tangentially forms respectively 5 ° of-15 ° of clockwise inclination angles.
Auxiliary hole for water spraying comprises interstitial hole 3 and rear end inclined hole 4, interstitial hole 3 is located on the bit body 1 middle part outer wall along the circumference radial equipartition, is communicated with bit body 1 cavity, and interstitial hole 3 axis are vertical with bit body 1 axis, interstitial hole 3 is staggered two circles, and every circle has 3 at least.Rear end inclined hole 4 is distributed on the same circumference in bit body rear portion, is communicated with cavity and tilts to cavity center.Angle between the axis of the axis of rear end inclined hole 4 and bit body 1 is 30 °-70 °, and quantity is at least 3, at bit body 1 outer wall inclined hole 4 places in rear end is set, be provided with the transition inclined-plane, rear end inclined hole 4 is arranged on the transition inclined-plane, makes things convenient for the processing of rear end inclined hole 4, guarantees machining accuracy.
Claims (10)
1. hydraulic jet bit, comprise cavity bit body (1), bit body (1) is provided with hole for water spraying, described hole for water spraying comprises main jet water hole (2) and auxiliary hole for water spraying, it is characterized in that: described main jet water hole (2) is located on the front transverse plane of bit body, outward-dipping formation angle α on bit body (1) axis direction dorsad, radially uniform arrangement centered by bit body (1) axis, tangentially form respectively clockwise angle of inclination beta, auxiliary hole for water spraying comprises interstitial hole (3) and rear end inclined hole (4), interstitial hole (3) is located on the outer wall of bit body (1) middle part along the circumference radial equipartition, be communicated with bit body (1) cavity, interstitial hole (3) axis is vertical with bit body (1) axis, and rear end inclined hole (4) is distributed on the same circumference in bit body rear portion, is communicated with cavity and tilts to cavity center.
2. hydraulic jet bit according to claim 1, it is characterized in that: described angle α is 2 °-10 °.
3. hydraulic jet bit according to claim 1 and 2, it is characterized in that: described clockwise angle of inclination beta is 5 °-15 °.
4. hydraulic jet bit according to claim 3, it is characterized in that: described main jet water hole (2) is divided into inside and outside two circles, and the quantity in inner ring main jet water hole and main jet water hole, outer ring is respectively 3-5, and the main jet water hole of inside and outside circle is staggered.
5. hydraulic jet bit according to claim 1 is characterized in that: described interstitial hole (3) is circle or staggered two circles, 3 of the uniform at least arrangements of every circle.
6. hydraulic jet bit according to claim 1, it is characterized in that: the angle between the axis of the axis of described rear end inclined hole (4) and bit body (1) is 30 °-70 °.
7. hydraulic jet bit according to claim 6, it is characterized in that: the quantity of described rear end inclined hole (4) is at least 3.
8. hydraulic jet bit according to claim 1, it is characterized in that: described hole for water spraying is unthreaded hole or shoulder hole.
9. hydraulic jet bit according to claim 1 is characterized in that: described bit body (1) front end is hemisphere or cone or paraboloid of revolution body with the plane.
10. hydraulic jet bit according to claim 9 is characterized in that: on described bit body (1) outer wall rear end inclined hole (4) is set and locates, be provided with circle " V " shape groove or a transition inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395012 CN202788631U (en) | 2012-08-10 | 2012-08-10 | Hydraulic jet drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395012 CN202788631U (en) | 2012-08-10 | 2012-08-10 | Hydraulic jet drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788631U true CN202788631U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395012 Expired - Fee Related CN202788631U (en) | 2012-08-10 | 2012-08-10 | Hydraulic jet drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788631U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510863A (en) * | 2013-10-25 | 2014-01-15 | 大庆井泰石油工程技术股份有限公司 | Rotatable hydraulic jet drill bit |
| CN104832093A (en) * | 2015-05-22 | 2015-08-12 | 杰瑞能源服务有限公司 | Jet drilling spray nozzle |
| CN105156085A (en) * | 2015-09-11 | 2015-12-16 | 重庆大学 | Composite fracturing and uniform permeability-improving method for tree-like boreholes in coal seams of underground coal mine |
| CN105171066A (en) * | 2015-07-30 | 2015-12-23 | 杨仁卫 | Water spraying drill bit |
| CN105298398A (en) * | 2015-09-11 | 2016-02-03 | 重庆大学 | Self-propelled hydraulic jet drill bit used for underground coal mine dendritic drilling |
| CN105108212B (en) * | 2015-07-30 | 2017-11-17 | 杨仁卫 | Drill bit with water injector |
| WO2020220485A1 (en) * | 2019-04-30 | 2020-11-05 | 武汉佑康科技有限公司 | Sheath cap and endoscope introducer sheath with sheath cap |
| CN113430880A (en) * | 2021-07-28 | 2021-09-24 | 四川西南交大铁路发展股份有限公司 | Device, system and method for breaking single side of post-cast strip of ballastless track base plate |
-
2012
- 2012-08-10 CN CN 201220395012 patent/CN202788631U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510863A (en) * | 2013-10-25 | 2014-01-15 | 大庆井泰石油工程技术股份有限公司 | Rotatable hydraulic jet drill bit |
| CN104832093A (en) * | 2015-05-22 | 2015-08-12 | 杰瑞能源服务有限公司 | Jet drilling spray nozzle |
| CN105171066A (en) * | 2015-07-30 | 2015-12-23 | 杨仁卫 | Water spraying drill bit |
| CN105108212B (en) * | 2015-07-30 | 2017-11-17 | 杨仁卫 | Drill bit with water injector |
| CN105171066B (en) * | 2015-07-30 | 2017-11-17 | 杨仁卫 | Water spray drill bit |
| CN105156085A (en) * | 2015-09-11 | 2015-12-16 | 重庆大学 | Composite fracturing and uniform permeability-improving method for tree-like boreholes in coal seams of underground coal mine |
| CN105298398A (en) * | 2015-09-11 | 2016-02-03 | 重庆大学 | Self-propelled hydraulic jet drill bit used for underground coal mine dendritic drilling |
| CN105156085B (en) * | 2015-09-11 | 2018-02-02 | 重庆大学 | The coal mine underground coal bed tree-shaped uniform anti-reflection method of drilling composite fracturing |
| WO2020220485A1 (en) * | 2019-04-30 | 2020-11-05 | 武汉佑康科技有限公司 | Sheath cap and endoscope introducer sheath with sheath cap |
| CN113430880A (en) * | 2021-07-28 | 2021-09-24 | 四川西南交大铁路发展股份有限公司 | Device, system and method for breaking single side of post-cast strip of ballastless track base plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140810 |
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| EXPY | Termination of patent right or utility model |