CN204082001U - Sinking by boring vertically creeps into drilling tool - Google Patents
Sinking by boring vertically creeps into drilling tool Download PDFInfo
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- CN204082001U CN204082001U CN201420469791.8U CN201420469791U CN204082001U CN 204082001 U CN204082001 U CN 204082001U CN 201420469791 U CN201420469791 U CN 201420469791U CN 204082001 U CN204082001 U CN 204082001U
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Abstract
The utility model discloses a kind of sinking by boring and vertically creeps into drilling tool, belongs to drilling machinery technical field.For improving the efficiency of breaking rock of drill bit, and then improve the rate of penetration of rig and invent.Described sinking by boring vertically creeps into drilling tool, comprises autonomous fixed middle guider, pressurization propelling hydraulic cylinder, 50 ° of shaft bottom angular bit heads; Wherein, described pressurization propelling hydraulic cylinder is arranged on described autonomous fixed middle between guider and described 50 ° of shaft bottom angular bit heads.The utility model is applicable to sinking by boring.
Description
Technical field
The utility model belongs to drilling machinery technical field, relates to a kind of well drilling tool, specifically a kind of sinking by boring vertically creep into drilling tool.
Background technology
At present, vertical shaft for mine sinking shaft mainly contains two kinds of methods, and one is boring method, and another is freezing.Through development for many years, the equipment and technology comparative maturity of wellbore construction.It is that safety is good that boring method compares the most outstanding advantage of freezing, wellbore construction mechanization and automaticity high, operating condition is good, and labour intensity is low, and workman does not go into the well, belong to essential safe type.Boring method also has that borehole wall quality is high, construction costs is low, economizes on resources and reliability high in addition.But along with the increase of mineshaft diameter and mine shaft depth, boring method also exposes some problems, wherein main problem is that rate of penetration is slow, and mineshaft diameter is larger, and rate of penetration is slower, has had a strong impact on the speed of mine construction.
The shaft drilling machine of present use mainly contains two kinds, one is that lifting of winch fixes rotating disc type shaft drilling machine, another kind is that hydraulic cylinder promotes power unit type shaft drilling machine, its working method is substantially identical, namely drilling rod is driven by rotating mechanism (rotating disk or unit head), drive bit to carry out brokenly rock, the two all adopts reacting cycle decompression of calming the anger to creep into.Figure 1 shows that hydraulic cylinder promotes the structural principle of power head type drill rig, derrick is provided with lifting hydraulic cylinder 1 and unit head 2, unit head 2 drives drill bit 5 rotation to carry out brokenly rock by drilling rod 3, guider 4 floats and is arranged on above drill bit 5, its effect prevents drill bit from occurring large swing, broken landwaste is discharged with the absorption mouth of mud in the middle of drill bit and drilling rod centre bore, and enter in sedimentation basin 8 through outlet pipe 6 and slurry outlet groove 7, mud after precipitation flows back to pit shaft and recycles, and the landwaste of precipitation is removed after purification.In order to ensure the verticality of drilling well, decompression must be adopted to creep into (30-60% getting drill bit weight in mud is the pressure of the drill), namely rely on the gravity of drill bit to lead.In order to protect well side stable when creeping into, need to adopt high performance slurry, the fluid pressure of mud and mud help the mud skin (mudding action) of formation at well, well side are played to the effect of temporary lining.Rig creeps into intended diameter and the degree of depth, and after proving that its effective diameter can meet the demands by accurately logging well, the wall submersion made in advance on ground also carries out support with backfilling well cementation, fulfils assignment.
Because drilling well there will be deflection; when same degree of skewness; along with the increase of mine shaft depth; the effective diameter of pit shaft can reduce, and in order to ensure effective mineshaft diameter, usually can strengthen drilling well diameter; and then add drilling effort; therefore, in drilling process, the degree of skewness controlling pit shaft is extremely important.
Research shows, causes the main cause following points that rig rate of penetration is slow.
(1) the pressure of the drill is not enough.Be limited by the hoisting power of rig, the weight general control of drill bit, within 300t, for guaranteeing the verticality of drilling well, must reduce pressure and creep into, and therefore, cause the pressure of the drill not enough, hobboing cutter crown effectively can not cut the object that rock mass reaches volumetric fracture.
(2) fragmentation is repeated.In order to keep the stability of creeping into, Rock penetrating generally adopts flat bottom bit or is less than the taper bit at angle, 35 ° of shaft bottoms, landwaste absorbs mouth and generally designs in bit central, the Coal Face Passing Through formed due to drilling process is in gently, broken landwaste will be very difficult to bit central motion, landwaste could be taken away by mud after being repeatedly broken into powder, causes landwaste to repeat thus broken, has a strong impact on drilling efficiency.
(3) guide structure problem.Why rig adopts decompression to creep into, because the guider be arranged on above drill bit can not lead veritably, the diameter of guider is fixing, and about 100mm less of bit diameter, only can play the effect preventing drill bit from significantly swinging, cause drill bit in drilling process very unstable thus, efficiency of breaking rock reduces.
Current, the rate of penetration improving major diameter pit shaft is the technical barrier being badly in need of solving.
Summary of the invention
What the purpose of this utility model was to provide a kind of sinking by boring vertically creeps into drilling tool, under the prerequisite not changing existing rig general structure, can improve the efficiency of breaking rock of drill bit, and then improves the rate of penetration of rig.
The utility model solves the technical scheme that its technical problem adopts:
A kind of sinking by boring vertically creeps into drilling tool, it is characterized in that, comprises autonomous fixed middle guider, pressurization propelling hydraulic cylinder, drill bit; Wherein, described pressurization propelling hydraulic cylinder is arranged on described autonomous fixed middle between guider and described drill bit.
Alternatively, described autonomous fixed middle guider comprises molgogger, guide, leading truck, support arm, supporting boot and detection supporting cylinder; Wherein
Described leading truck is linked together by molgogger and guide, and described molgogger is located and pretension by pretension fastening devices;
Described leading truck is evenly equipped with more than three support arms, the slide bar of supporting boot inserts in the support arm on described leading truck, is provided with detection supporting cylinder in the slide bar of described supporting boot;
Described support arm is linked together by pull bar.
Alternatively, described detection supporting cylinder comprises detection hydraulic cylinder and supporting cylinder; Wherein
Described supporting cylinder comprises: cylinder body, support cylinder cap, cylinder bottom, support piston, support piston bar; Described support cylinder cap and cylinder bottom are located at the two ends of described cylinder body respectively; Described support piston is located in described cylinder body, and described support piston bar is connected with described support piston; The end of described piston rod is provided with supporting boot;
Described detection hydraulic cylinder comprises: cylinder bottom, support piston, support piston bar, feeler and detection cylinder cap; Described feeler is arranged in the middle of described support piston bar, and inserts in described cylinder bottom through described support piston; There is an axially extending bore centre of described support piston bar, has an axial blind hole in the middle of described cylinder bottom, described feeler has detection piston one and detection piston two coordinate with above-mentioned two holes respectively; There is a detecting plate outer end of described feeler.
Alternatively, described drill bit is 50 ° of shaft bottom angular bit heads.
Alternatively, described leading truck is evenly equipped with eight described support arms.
Alternatively, the cylinder body of described pressurization propelling hydraulic cylinder is fixed on leading truck, and arranges with wellbore centre axis being parallel, and the piston rod of pressurization propelling hydraulic cylinder is provided with roller, and described roller supporting is on the ring-shaped guide rail in described bit upper end face.
The beneficial effects of the utility model are:
Relative to the guider of fixed diameter of the prior art, by adopting autonomous fixed middle guider in the utility model embodiment, drill bit can be automatically positioned on wellbore centre, and in independently determining, pressurization propelling hydraulic cylinder is installed between guider and drill bit, independently to determine middle guider for fulcrum is to drill bit applied thrust, boosting drill bit breaks rock, can improve the efficiency of breaking rock of drill bit, and then improves the bit speed of rig.
Accompanying drawing explanation
Fig. 1 is the structure principle chart that the hydraulic cylinder used now promotes power head type drill rig;
Fig. 2 is the structure principle chart using the hydraulic cylinder of the utility model vertical drilling drilling tool to promote power head type drill rig;
Fig. 3 is the front view of the utility model vertical drilling drilling tool frame for movement;
Fig. 4 is the top view of the utility model vertical drilling drilling tool frame for movement;
Fig. 5 is the structure principle chart detecting supporting cylinder in Fig. 3.
1. lifting hydraulic cylinders in figure, 2. unit head, 3. drilling rod, 4. guider, 5.35 ° of shaft bottom angular bit heads, 6. outlet pipe, 7. slurry outlet groove, 8. sedimentation basin, 9. autonomous fixed middle guider, 10. pressurize propelling hydraulic cylinder, 11.50 ° of shaft bottom angular bit heads, 12. cable synchronizing winches, 13. power and signal cable, 14. Hydraulic Stations, 15. rollers, 16. ring-shaped guide rails, 91. slide bars, 92. support arms, 93. molgoggers, 94. guides, 95. pretension fastening devicess, 96. leading trucks, 97. detection supporting cylinders, 98. supporting boots, 99. pull bars, 971. detecting plate, 972. detection cylinder caps, 973. support cylinder cap, 974. support piston bars, 975. cylinder body, 976. feeler, 977. support piston, 978. cylinder bottom, 9761. detection pistons one, 9762. detection pistons two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Should be clear and definite, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 2, the utility model. a kind of sinking by boring vertically creeps into drilling tool embodiment, comprises autonomous fixed middle guider 9, pressurization propelling hydraulic cylinder 10, drill bit 11; Wherein, described pressurization propelling hydraulic cylinder 10 is arranged on described autonomous fixed middle between guider 9 and described drill bit 11.
By adopting autonomous fixed middle guider in the utility model embodiment, drill bit can be automatically positioned on wellbore centre, and in independently determining, pressurization propelling hydraulic cylinder is installed between guider and drill bit, independently to determine middle guider for fulcrum is to drill bit applied thrust, boosting drill bit breaks rock, the efficiency of breaking rock of drill bit can be improved, and then improve the bit speed of rig.
Alternatively, the utility model sinking by boring vertically creeps in drilling tool one embodiment, and described autonomous fixed middle guider 9 comprises molgogger 93, guide 94, leading truck 96, support arm 92, supporting boot 98 and detection supporting cylinder 97; Wherein, described leading truck 96 is linked together by molgogger 93 and guide 94, and described molgogger 93 is located and pretension by pretension fastening devices 95; Described leading truck 96 is evenly equipped with more than three support arms 92, the slide bar 91 of supporting boot 98 inserts in the support arm 92 on described leading truck 96, is provided with detection supporting cylinder 97 in the slide bar 91 of described supporting boot 98; Described support arm 92 is linked together by pull bar 99.
Alternatively, the utility model sinking by boring vertically creeps in drilling tool one embodiment, and described detection supporting cylinder 97 comprises detection hydraulic cylinder and supporting cylinder; Wherein, described supporting cylinder comprises: cylinder body 975, support cylinder cap 973, cylinder bottom 978, support piston 977, support piston bar 974; Described support cylinder cap 973 and cylinder bottom 978 are located at the two ends of described cylinder body 975 respectively; Described support piston 977 is located in described cylinder body 975, and described support piston bar 974 is connected with described support piston 977; The end of described piston rod 974 is provided with supporting boot 98; Described detection hydraulic cylinder comprises: cylinder bottom 978, support piston 977, support piston bar 974, feeler 976 and detection cylinder cap 972; Described feeler 976 is arranged in the middle of described support piston bar 974, and inserts in described cylinder bottom 978 through described support piston 977; There is an axially extending bore centre of described support piston bar 974, has an axial blind hole in the middle of described cylinder bottom 978, described feeler 976 has detection piston 1 and detection piston 2 9762 coordinate with above-mentioned two holes respectively; There is a detecting plate 971 outer end of described feeler 976.
Alternatively, the utility model sinking by boring vertically creeps in drilling tool one embodiment, increases the angle, shaft bottom of drill bit, and specifically, described drill bit (11) is 50 ° of shaft bottom angular bit heads.Like this, the landwaste that fragmentation is got off under gravity, rolls along work plane is radial from trend wellbore centre, is absorbed in time and gets rid of, avoid landwaste to repeat broken by the absorption mouth in the middle of drill bit.
The drill bit at angle, described 50 ° of shaft bottoms is substantially identical with current 35 ° of shaft bottom angular bit header structures, and just the cone angle of drill bit is reduced to present 80 ° by original 110 °.
Alternatively, the utility model sinking by boring vertically creeps in drilling tool one embodiment, the cylinder body of described pressurization propelling hydraulic cylinder 10 is fixed on leading truck 96, and arrange with wellbore centre axis being parallel, the piston rod of pressurization propelling hydraulic cylinder 10 is provided with roller 15, and described roller 15 is supported on the ring-shaped guide rail 16 of described drill bit 11 upper surface.
Vertically creep into drilling tool to the utility model sinking by boring to be below described in detail.
As shown in Figure 2, the utility model vertical drilling drilling tool mainly comprises autonomous fixed middle guider 9, pressurization propelling hydraulic cylinder 10,50 ° of shaft bottom angular bit heads 11, cable synchronizing winches 12, power and signal cable 13, the parts such as Hydraulic Station 14, roller 15 and ring-shaped guide rail 16.
As shown in Figure 3, Figure 4, described autonomous fixed middle guider 9 is made up of guide 94, leading truck 96, support arm 92, molgogger 93, pretension fastening devices 95, slide bar 91, supporting boot 98, main parts size such as detection supporting cylinder 97 and pull bar 99 etc., described leading truck 96 is linked together by molgogger 93 and guide 94, molgogger 93 is located and pretension by pretension fastening devices 95, and leading truck 96 can slide up and down along guide 94; Leading truck 96 is evenly equipped with eight support arms 92, the slide bar 91 of supporting boot 98 inserts in the support arm 92 of leading truck 96, be provided with detection supporting cylinder 97 in the slide bar 91 of supporting boot 98, supporting boot 98 is moved by the flexible support arm 92 along leading truck 96 of detection supporting cylinder 97; Support arm 92 is linked together by pull bar 99; The cylinder body of described pressurization propelling hydraulic cylinder 10 is fixed on leading truck 96, and arranges with wellbore centre axis being parallel, its piston rod is provided with roller 15, and described roller 15 is supported on the ring-shaped guide rail 16 of angular bit head 11 upper surface, described 50 ° of shaft bottoms.
See Fig. 5, described detection supporting cylinder 97 is made up of cylinder body 975, support cylinder cap 973, cylinder bottom 978, support piston 977, support piston bar 974, feeler 976 and detection cylinder cap 972 etc., wherein cylinder body 975, support cylinder cap 973, cylinder bottom 978, support piston 977, support piston bar 974 form supporting cylinder, and cylinder bottom 978, support piston 977, support piston bar 974, feeler 976 and detection cylinder cap 972 form detection hydraulic cylinder.Feeler 976 is arranged in the middle of support piston bar 974, and insert in cylinder bottom 978 through support piston 977, there is an axially extending bore centre of support piston bar 974, an axial blind hole is had in the middle of cylinder bottom 978, feeler 976 there are two detect piston (convex shoulder), namely detect piston 1 and coordinate with above-mentioned two holes respectively with detection piston 2 9762; There is a detecting plate 971 outer end of feeler 976.When the end detecting piston 2 9762 passes into pressure oil, feeler 976 is overhanging, when detecting plate 971 touches well side, system pressure raises, when reaching set pressure, control valve (not shown) is closed, feeler 976 stop motion, now, pressure oil enters support piston chamber from the hydraulic fluid port B support piston bar 974, support piston bar 974 is overhanging, supporting boot 98 is driven to help near well together, when support piston bar 974 moves to identical with the distance of feeler 976 movement, oil-in B closes by detection piston 1, support piston bar 974 stop motion, by designing program, feeler 976 and support piston bar 974 action successively, help until eight supporting boots 98 all support to well, now, the oil-in A in eight support piston chambeies opens oil-feed simultaneously, and whole supporting boot 98 is supported on well by design pressure and helps, and drill bit is positioned wellbore centre.
Further, support piston bar chamber and feeler chamber are all provided with returning spring (not shown), in the event of a power failure can automatic retracted, make supporting boot 98 and detecting plate 971 depart from well side, conveniently pull out of hole.
In the present embodiment, described detection supporting cylinder has two effects, and one is the distance between detection supporting boot and well are helped, and then guide support boots move corresponding distance, ensure that drill bit is in wellbore centre position; Two is helped at well by supporting boot stretching, provides support a little for advancing compression system.The effect of described pretension fastening devices is supporting positioning and guiding roller, and promotes molgogger and press guide, prevents because wearing and tearing cause producing gap between guide and molgogger.Described pull bar is connected between the support arm of leading truck, guarantees that the entirety of leading truck is firm.
In the present embodiment, pressurization propulsion system is made up of eight pressurization propelling hydraulic cylinders, and eight pressurization propelling hydraulic cylinders synchronously advance, and boosting drill bit breaks rock.One end of described pressurization propelling hydraulic cylinder is fixed on leading truck, the other end operates on drill bit ring-shaped guide rail by roller, when pressurization propelling hydraulic cylinder plunger shaft oil-feed, pressurization propulsion system advances downwards for fulcrum independently to determine middle guider, applies pressure to drill bit.Thrust and the speed of service of described pressurization propelling hydraulic cylinder are controlled by signal cable by ground control centre.
Preferably, according to theory calculate, due to the viscous effect of mud, the drill bit of 300t is suspended in well mud by drilling rod, and the horizontal thrust applying 50kg at guider place is not enough to allow drill bit produce and swings, and can carry out the design detecting hydraulic cylinder accordingly.In the utility model embodiment, the set pressure getting detection cylinder device is 2MPa, and the diameter of detection piston is 16mm, and the diameter of feeler is 10mm.
Further, in the utility model embodiment, the set pressure getting supporting cylinder system is 31.5MPa, and when the diameter of support piston 977 is 160mm, each supporting boot can provide the support force of nearly 65t.
Preferably, the stroke of described pressurization propelling hydraulic cylinder 10 is 1500mm.
Further, the set pressure getting pressurization propelling hydraulic cylinder system is 31.5MPa, and when the piston diameter of pressurization propelling hydraulic cylinder is 125mm, each pressurization propelling hydraulic cylinder can provide the thrust of nearly 40t, then the pressure of the drill can bring up to about 600t.
Described Hydraulic Station 14 is made up of electric case, hydraulic pressure pump box, hydraulic valve box and control cabinet etc., and described electric case, hydraulic pressure pump box, hydraulic valve box and control cabinet are evenly distributed on the leading truck 96 of described autonomous fixed middle guider 9.Hydraulic system designs by underwater hydraulic system, and Hydraulic Station 14 is controlled by power and signal cable 13 by ground control centre.The design at associated hydraulic station is similar to ROV (unmanned remotely controlled submersible vehicle), is not repeated herein.
Operating principle of the present utility model is: 50 ° of shaft bottom angular bit heads 11 are suspended in the mud of pit shaft by drilling rod 3 by (1) rig, and it is free suspended state that 50 ° of shaft bottom angular bit heads 11 leave work plane 0.5m place, shaft bottom; (2) in automatically fixed, the detecting plate 971 of guider 9 is measured each supporting boot 98 to the distance that well is helped and is controlled its corresponding distance of moving; (3) hydraulic system is simultaneously to the A confession oil of detection supporting cylinder 97, make whole eight supporting boots 98 simultaneously stretching help at well, 50 ° of shaft bottom angular bit heads 11 are constrained on wellbore centre; (4) starting unit head 2 drives 50 ° of shaft bottom angular bit heads 11 to rotate downward cleaning bottom of hole 0.5m by drilling rod 3, pressurization propelling hydraulic cylinder 10 (effective travel 1.5m) is synchronously followed up, after 50 ° of shaft bottom angular bit heads 11 contact shaft bottom work plane, pressurization propelling hydraulic cylinder 10 starts downward propelling, boosting drill bit breaks rock, its thrust and fltting speed are controlled by signal cable 13 by ground control centre, and creeping into 1m is a working cycles; After (5) 50 ° of shaft bottom angular bit heads 11 creep into 1m, the piston rod 1.5m of pressurization propelling hydraulic cylinder 10 all stretches out, and stops creeping into, and by 50 ° of shaft bottoms angular bit head 11 lift-off shaft bottom work plane 0.5m, pressurization propelling hydraulic cylinder 10 is synchronously retracted 0.5m; (6) retraction under the effect of detection supporting cylinder 97 of the supporting boot 98 of fixed middle guider 9 departs from well side automatically, and the propelling hydraulic cylinder 10 that pressurizes continues to bounce back, and guides guider 9 in automatically determining to move downward 1m, starts next work cycle.
The utility model sinking by boring is used vertically to creep into drilling tool, drill bit can be automatically positioned on wellbore centre, and rely on detection supporting cylinder to help independently determining middle guider stretching at well, rely on pressurization propelling hydraulic cylinder to drill bit applied thrust, boosting drill bit breaks rock, the efficiency of breaking rock of drill bit can be improved, in addition the drill bit at angle, 50 ° of shaft bottoms is adopted, increase the inclination angle of shaft bottom work plane, like this, the landwaste that fragmentation is got off under gravity, roll along work plane radial direction from trend wellbore centre, absorbed by the absorption mouth in the middle of drill bit in time and get rid of, landwaste is avoided to repeat broken, efficiency of breaking rock can be improved, and then improve the bit speed of rig.
The utility model sinking by boring vertically creeps in drilling tool embodiment, the application of autonomous fixed middle guider, and overcome the shortcoming that the pressure of the drill deficiency caused is crept in the decompression of former rig, the weight of drill bit all can become the pressure of the drill; Owing to there being pressurization propulsion system, can increase about 300t thrust, the pressure of the drill brings up to nearly 600t from original maximum 180t, thoroughly solves the not enough problem of the pressure of the drill; The application of autonomous fixed middle guider, make drill bit in drilling process, become very stable, therefore, the angle, shaft bottom of drill bit can be increased to 50 ° from 35 °, like this, landwaste broken in drilling process, can automatically tumble well center by deadweight along work plane, be absorbed by the absorption mouth in the middle of drill bit in time and take away, prevent the repetition of landwaste broken, improve the efficiency of breaking rock of drill bit, and then improve the rate of penetration of rig.
Should be clear and definite, above-described embodiment is to explanation of the present utility model, instead of to restriction of the present utility model, any simple conversion scheme all belongs to protection domain of the present utility model.
Claims (6)
1. sinking by boring vertically creeps into a drilling tool, it is characterized in that, comprises autonomous fixed middle guider (9), pressurization propelling hydraulic cylinder (10), drill bit (11); Wherein, described pressurization propelling hydraulic cylinder (10) is arranged on described autonomous fixed middle between guider (9) and described drill bit (11).
2. sinking by boring according to claim 1 vertically creeps into drilling tool, it is characterized in that: described autonomous fixed middle guider (9) comprises molgogger (93), guide (94), leading truck (96), support arm (92), supporting boot (98) and detection supporting cylinder (97); Wherein
Described leading truck (96) is linked together by molgogger (93) and guide (94), and described molgogger (93) is located and pretension by pretension fastening devices (95);
Described leading truck (96) is evenly equipped with more than three support arms (92), the slide bar (91) of supporting boot (98) inserts in the support arm (92) on described leading truck (96), is provided with detection supporting cylinder (97) in the slide bar (91) of described supporting boot (98);
Described support arm (92) is linked together by pull bar (99).
3. sinking by boring according to claim 2 vertically creeps into drilling tool, it is characterized in that: described detection supporting cylinder (97) comprises detection hydraulic cylinder and supporting cylinder; Wherein
Described supporting cylinder comprises: cylinder body (975), support cylinder cap (973), cylinder bottom (978), support piston (977), support piston bar (974); Described support cylinder cap (973) and cylinder bottom (978) are located at the two ends of described cylinder body (975) respectively; Described support piston (977) is located in described cylinder body (975), and described support piston bar (974) is connected with described support piston (977); The end of described piston rod (974) is provided with supporting boot (98);
Described detection hydraulic cylinder comprises: cylinder bottom (978), support piston (977), support piston bar (974), feeler (976) and detection cylinder cap (972); Described feeler (976) is arranged in the middle of described support piston bar (974), and inserts in described cylinder bottom (978) through described support piston (977); There is an axially extending bore centre of described support piston bar (974), there is an axial blind hole in the middle of described cylinder bottom (978), described feeler (976) has detection piston one (9761) and detection piston two (9762) coordinate with above-mentioned two holes respectively; There is a detecting plate (971) outer end of described feeler (976).
4. sinking by boring according to claim 1 vertically creeps into drilling tool, it is characterized in that: described drill bit (11) is 50 ° of shaft bottom angular bit heads.
5. sinking by boring according to claim 2 vertically creeps into drilling tool, it is characterized in that: described leading truck (96) is evenly equipped with eight described support arms (92).
6. sinking by boring according to claim 2 vertically creeps into drilling tool, it is characterized in that: the cylinder body of described pressurization propelling hydraulic cylinder (10) is fixed on leading truck (96), and arrange with wellbore centre axis being parallel, the piston rod of pressurization propelling hydraulic cylinder (10) is provided with roller (15), and described roller (15) is supported on the ring-shaped guide rail (16) of described drill bit (11) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469791.8U CN204082001U (en) | 2014-08-19 | 2014-08-19 | Sinking by boring vertically creeps into drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420469791.8U CN204082001U (en) | 2014-08-19 | 2014-08-19 | Sinking by boring vertically creeps into drilling tool |
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| CN204082001U true CN204082001U (en) | 2015-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196449A (en) * | 2014-08-19 | 2014-12-10 | 中煤矿山建设集团有限责任公司 | Vertical drilling tool for drilling well through drilling method |
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2014
- 2014-08-19 CN CN201420469791.8U patent/CN204082001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196449A (en) * | 2014-08-19 | 2014-12-10 | 中煤矿山建设集团有限责任公司 | Vertical drilling tool for drilling well through drilling method |
| CN104196449B (en) * | 2014-08-19 | 2016-03-23 | 中煤矿山建设集团有限责任公司 | Sinking by boring vertically creeps into drilling tool |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20180819 |