CN107916937A - Drilling tool, drilling machine and drilling method - Google Patents

Drilling tool, drilling machine and drilling method Download PDF

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Publication number
CN107916937A
CN107916937A CN201711399854.1A CN201711399854A CN107916937A CN 107916937 A CN107916937 A CN 107916937A CN 201711399854 A CN201711399854 A CN 201711399854A CN 107916937 A CN107916937 A CN 107916937A
Authority
CN
China
Prior art keywords
drilling
drill bit
tool
pipe
annular groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711399854.1A
Other languages
Chinese (zh)
Inventor
桂步根
何英男
任军
孙玉才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Noble Heavy Industry Co Ltd
Original Assignee
Jiangsu Noble Heavy Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Noble Heavy Industry Co Ltd filed Critical Jiangsu Noble Heavy Industry Co Ltd
Priority to CN201711399854.1A priority Critical patent/CN107916937A/en
Publication of CN107916937A publication Critical patent/CN107916937A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1006Making by using boring or cutting machines with rotary cutting tools

Abstract

The present invention relates to technical field of engineering machinery, disclose a kind of drilling tool, drilling machine and drilling method, the drilling tool, which is used to bore, digs annular groove, the drilling tool includes drilling pipe and at least one set of drill bit, drill bit described in every group includes the first drill bit and the second drill bit, first drill bit and second drill bit are centered on the center of circle of the drilling pipe end face, it is symmetrically disposed in the end of the drilling pipe, and the inner wall of the first drill bit to the drilling pipe deflects and protrudes from the inner wall of the drilling pipe, the outer wall of second drill bit to the drilling pipe deflects and protrudes from the outer wall of the drilling pipe, the drilling tool is provided with the drilling tool.Tunnelling is carried out using the drilling tool, drilling machine and drilling method, there is quick excavation, the technique effect that efficient, equipment is simple, equipment cost is low and environmental pollution is small.

Description

Drilling tool, drilling machine and drilling method
Technical field
The present invention relates to technical field of engineering machinery, more particularly, to a kind of drilling tool for drilling machine, the invention further relates to A kind of drilling machine including above-mentioned drilling tool and the method crept into using above-mentioned drilling machine.
Background technology
In recent years, with the fast development of the infrastructure constructions such as China's highway, high-speed railway and city underground, need Want the engineering of tunneling more and more, corresponding tunnelling machinery has been more and more widely used.
Current engineering tunnel is excavated using excavating machineries such as shield machines or carries out explosion using blasting procedure more.
The basic functional principle of shield machine be exactly a cylinder steel component along canal axes when pushing ahead to soil Earth etc. is excavated, and it is whole tunnel area that it, which excavates plane, and shield machine complete machine structure is very big, and equipment is very expensive, general Engineering difficulty or ease are dealt with, and the excavating machinery of other classes is also generally all directly to carry out rotary drilling digging in region to be excavated, excavates plane And whole tunnel area, or be only that whole tunnel area is divided into two parts to be excavated, need pair when excavating machine depth Whole plane is excavated, and drilling tool or cutting stage property loss are larger, and digging efficiency is not high, and equipment investment is larger;And use quick-fried The vibration of broken method tunneling is larger, pollutes environment, is not easy to control, and have certain danger.
The content of the invention
The purpose of the present invention aims to provide a kind of new drilling tool, and provides a kind of drilling machine for being provided with the drilling tool and use and be somebody's turn to do The method of drilling machine drilling, brill digging is carried out using the drilling tool, drilling machine and drilling method to tunnel, to solve to exist in the prior art The problem of, achieve the purpose that quickly excavation, improve efficiency, reduce equipment cost, reduce environmental pollution.
What the present invention was realized in:
The present invention provides a kind of drilling tool, and the drilling tool, which is used to bore, digs annular groove, and the drilling tool includes drilling pipe and at least one Group drill bit, drill bit described in every group include the first drill bit and the second drill bit;
Wherein, first drill bit and second drill bit are symmetrically arranged centered on the center of circle of the drilling pipe end face Inner wall in the end of the drilling pipe, and from the first drill bit to the drilling pipe deflects and protrudes from the inner wall of the drilling pipe, institute The outer wall for stating the second drill bit to the drilling pipe deflects and protrudes from the outer wall of the drilling pipe.
Further, first drill bit and second drill bit include cutter head and tool tip, and the cutter head is arranged on In the tool tip, the tool tip is fixed on the end of the drilling pipe by fastener.
Further, the fastener is screw.
Further, the cutter head is cylindric, and the cutter head retreats and is tiltedly arranged in the tool tip.
Further, the end of the drilling pipe has been uniformly arranged in the circumferential direction three pairs of drill bits, and first drill bit and Second drill bit is arranged in a crossed manner.
Further, the drilling tool further includes driving device, and the driving device is arranged on the rear end of the drilling pipe, is used for The drilling pipe is driven to rotate.
Further, the driving device is hydraulic motor.
Further, the drilling tool further includes propulsion device, and the propulsion device is arranged on the lower part of the drilling pipe, is used for The drilling pipe is promoted to move forward.
The present invention also provides a kind of drilling machine, it is provided with according to any drilling tool in above-mentioned technical proposal.
The present invention also provides a kind of drilling method, it is used according to the drilling machine described in above-mentioned technical proposal, including as follows Step:
Treating that drilling area periphery drills through some first annular grooves using the drilling machine, making the first annular groove will It is described to treat that drilling area surrounds;
The unbroken region splitting in the centre of the first annular groove is burst, disintegrating slag is cleared up;
Some second annular grooves are drilled through in the middle part for treating drilling area;
The unbroken region splitting in the centre of the second annular groove is burst, disintegrating slag is cleared up;
By between the first annular groove, between the second annular groove and the first annular groove and described Non- connected region between second annular groove crushes, and makes entirely to treat that drilling area connects, disintegrating slag is cleared up.
The method have the advantages that:
A kind of drilling tool provided by the invention, it is arranged on drilling machine, is dug annular groove for boring, is excavated when to tunnel When, which need not bore on drilling area is treated and dig deep hole again, it is only necessary to bore the annular groove for digging certain depth, it will First drill bit and the second drill bit are symmetrically disposed in the end of drilling pipe, and inner wall deflection of first drill bit to the drilling pipe and prominent In the inner wall of the drilling pipe, the outer wall of the second drill bit to the drilling pipe deflects and protrudes from the outer wall of the drilling pipe, annular groove Thickness be slightly larger than drilling pipe thickness, discharged in time easy to the disintegrating slag after drill bit is cut, pass through driving device drive drilling pipe turn It is dynamic, and then drive drill bit to carry out circumgyration incision, annular groove is dug treating that drilling area bores, makes the circle of the drill core among annular groove Face sky week, it is convenient subsequently drill core crack broken, the efficiency bored and dug is improved, reduces the use of drill bit, reduces ring Border is polluted, the drilling machine and drilling method that the application provides in addition, is bored only to need to bore when digging and is dug annular groove, is greatly enhanced Bore and dig efficiency, and reduce the cost of equipment.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the overall structure diagram of drilling tool provided in an embodiment of the present invention;
Fig. 2 is the side view of drilling tool provided in an embodiment of the present invention;
Fig. 3 be the first drill bit of drilling tool provided in Fig. 2 amplification after structure diagram one;
Fig. 4 be the second drill bit of drilling tool provided in Fig. 2 amplification after structure diagram one;
Fig. 5 is the structure diagram two of the first drill bit of drilling tool provided in an embodiment of the present invention;
Fig. 6 is the structure diagram two of the second drill bit of drilling tool provided in an embodiment of the present invention.
Reference numeral:
1- drilling pipes;2- drill bits;The first drill bits of 3-;The second drill bits of 4-;5- cutter heads;6- tool tips;7- hydraulic pressure horses Reach;8- brackets;9- slideway shelfs;10- guide rods;11- hydraulic cylinders.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings The component of example can be arranged and designed with a variety of configurations.Therefore, the reality of the invention to providing in the accompanying drawings below The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts Every other embodiment, belongs to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
, it is necessary to illustrate in the description of invention, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can To be mechanical connection or be electrically connected;It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
The embodiment of the present invention is described in detail below in conjunction with attached drawing 1-6.It should be appreciated that herein Described embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In recent years, with the fast development of the infrastructure constructions such as China's highway, high-speed railway and city underground, need Want the engineering of tunneling more and more, corresponding tunnelling machinery has been more and more widely used.Current engineering tunnel Excavated more using excavating machineries such as shield machines or carry out explosion using blasting procedure in road.The basic functional principle of shield machine is exactly The steel component of one cylinder excavates soil etc. when pushing ahead along canal axes, and it is whole tunnel that it, which excavates plane, Region, shield machine complete machine structure is very big, and equipment is very expensive, and general engineering difficulty or ease are dealt with, and the excavating machinery of other classes is general Also all it is directly to carry out rotary drilling digging in region to be excavated, it is also whole tunnel area to excavate plane, or is only by whole tunnel Road region is divided into two parts and is excavated, and whole plane need to be excavated when excavating machine depth, drilling tool or cutting stage property damage Consume larger, and digging efficiency is not high, and equipment investment is larger;And use the vibration of blasting procedure tunneling larger, environment is polluted, no Easy to control, and there is certain danger.
In consideration of it, the designer of the present invention, by long-term exploration and trial, reform and innovation, devise a kind of drilling tool, originally A kind of drilling tool provided is invented, it is arranged on drilling machine, and annular groove, when being excavated to tunnel, the application are dug for boring The drilling tool of offer need not bore on drilling area is treated and dig deep hole again, it is only necessary to the annular groove for digging certain depth is bored, its First drill bit and the second drill bit are symmetrically disposed in the end of drilling pipe, drive drilling pipe to rotate by driving device, and then drive Drill bit carries out circumgyration incision, digs annular groove treating that drilling area bores, the circumference of the drill core among annular groove is faced sky, convenient Subsequently drill core crack broken, improve the efficiency bored and dug, reduce the use of drill bit, reduce environmental pollution, and the The inner wall of one drill bit to the drilling pipe deflects and protrudes from the inner wall of the drilling pipe, and the second drill bit is deflected to the outer wall of the drilling pipe And the outer wall of the drilling pipe is protruded from, the thickness of annular groove is slightly larger than the thickness of drilling pipe, easy to broken after drill bit is cut Slag is discharged in time;In addition the drilling machine and drilling method that the application provides, bore only to need to bore when digging and dig annular groove, greatly Improve brill and dig efficiency, and reduce the cost of equipment.
Embodiment
Attached drawing 1 and attached drawing 2 are referred to, present embodiments provides a kind of drilling tool, the drilling tool, which is used to bore, digs annular groove, institute Stating drilling tool includes drilling pipe 1 and at least one set of drill bit 2, and drill bit described in every group includes the first drill bit 3 and the second drill bit 4;
Wherein, first drill bit 3 and second drill bit 4 are symmetrically set centered on the center of circle of 1 end face of drilling pipe Put in the end of the drilling pipe 1, and the inner wall of first drill bit 3 to the drilling pipe 1 is deflected and protruded from the drilling pipe 1 Wall, the outer wall of second drill bit 4 to the drilling pipe 1 deflect and protrude from the outer wall of the drilling pipe 1.
In a preferred embodiment, drilling pipe 1 selects seamless steel pipe, and 1 diameter of drilling pipe is arranged to 600-800mm, drilling pipe 1 length is arranged to 1000mm, i.e., the depth that can be crept into every time is about 1m.
A kind of drilling tool that above-described embodiment provides, digs dedicated for carrying out the brill of annular groove, and no longer needs to be drilled Bored in recessed region and dig deep hole, it is only necessary to the annular groove for digging certain depth is bored, and by the first drill bit and the second drill bit pair It is arranged on the end of drilling pipe with claiming, drives drilling pipe to rotate by driving device, and then drive drill bit to carry out circumgyration incision, to be drilled The surface of recessed region, which is bored, digs annular groove, the circumference of the drill core among annular groove is faced sky, drill core is carried out with facilitating Crack broken, substantially increase the efficiency bored and dug, and the inner wall of the first drill bit to the drilling pipe deflects and protrudes from the brill The inner wall of cylinder, the outer wall of the second drill bit to the drilling pipe deflect and protrude from the outer wall of the drilling pipe, make the thickness of annular groove Slightly larger than the thickness of the brill wall of drilling pipe, easy to the disintegrating slag discharge for cutting drill bit, simultaneously as need to only bore digging annular groove, i.e., only Need to be in the end set drill bit of drilling pipe, which reduce the setting of drill bit quantity, it is not necessary to if digging region setting in whole bore Drilled dry head bores digging at the same time, it is only necessary in a small amount of drill bit of the end set of drilling pipe, simplifies device structure, also reduces equipment Cost.
In another embodiment, attached drawing 2-5 is referred to, further, 3 and second drill bit 4 of the first drill bit wraps Cutter head 5 and tool tip 6 are included, the cutter head 5 is arranged in the tool tip 6, and the tool tip 6 is fixed on described by fastener The end of drilling pipe 1.
Cutter head is arranged in tool tip by the present embodiment, and the support of stabilization can be provided for cutter head, tool tip is passed through tight Firmware is fixed in drilling pipe, is conveniently replaceable cutter head.
In another embodiment it is preferred that the fastener is screw.By the way that screw can quickly fixation connects by tool tip It is connected in drilling pipe, is convenient for changing dismounting.
In another embodiment, attached drawing 3-5 is referred to, further, the cutter head 5 is cylindric, and the cutter head 5, which retreat, is tiltedly arranged in the tool tip 6.
Cutter head is retreated and is tiltedly arranged in tool tip, makes cylindrical surface and the drilling pipe end face out of plumb, i.e. cylinder of cutter head An acute angle is formed between face and drilling pipe end face, makes cylindrical surface and treats that the contact surface of drilling area has an angle, easy to native stone Cutting, also reduce cutter head abrasion.
In another embodiment, attached drawing 1 and attached drawing 2 are referred to, further, the end of the drilling pipe 1 is circumferentially equal It is even to be provided with three pairs of drill bits 2, and first drill bit 3 and second drill bit 4 are arranged in a crossed manner.
The quantity of drill bit for needing to set according to the adjustment of the diameter of drilling pipe, and by first drill bit and described second Drill bit is arranged in a crossed manner, realizes cross-cut, the resistance of soil stone when reducing cutting, so as to reduce the abrasion of cutter head.
Attached drawing 1 is referred to, further, the drilling tool further includes driving device, and the driving device is arranged on the brill The rear end of cylinder, for driving the drilling pipe to rotate.
Driving device is arranged to hydraulic motor 7 by the present embodiment.The center of rotation of hydraulic motor and the center of drilling pipe is set to exist On one line, it ensure that drilling pipe does not deviate in when drilling area is crept into pair, and tradition is also eliminated with fluid motor-driven Gear reducer and gear-box coordinate driving structure, simplified equipment, and improve the precision of transmission.
Attached drawing 2 is referred to, further, the drilling tool further includes propulsion device, and the propulsion device is arranged on the brill The lower part of cylinder 1, for promoting the drilling pipe 1 to move forward.Preferably, the propulsion device is hydraulic cylinder 11.
When rotary drilling digs annular groove, driving device is on the one hand needed to drive drilling pipe rotation to cut bit, it is another Aspect also needs to longitudinal depth with the carry out drilling pipe of cutting, the present embodiment by setting propulsion device in the lower part of drilling pipe, The depth and rotating cooperation realization for ensureing drilling pipe are uniformly coordinated.
Attached drawing 1 and attached drawing 2 are referred to, further, drilling tool provided in this embodiment, drilling tool is arranged on bracket 8, support Slideway shelf 9 and guide rod 10 are provided with frame 8, the slideway shelf 9 is arranged on the rear end of the drilling pipe 1, and the hydraulic motor 7 is set Put on the slideway shelf 9, the guide rod 10 is arranged on the lower part of the drilling pipe 1, and the both sides difference of the hydraulic cylinder 11 A guide rod 10 is provided with, the slideway shelf 9 is installed on the guide rod 10, is moved back along the guide rod 10 It is dynamic.
Wherein, the bracket 8 includes the left plate, right plate and the fore-stock of rear and front end, after-poppet of both sides, left side Plate, fore-stock, right plate and after-poppet are mutually permanently connected to form bracket 8, and described 11 one end of hydraulic cylinder is fixed on the preceding branch On frame, the other end is fixed on the slideway shelf, by the flexible drive of hydraulic cylinder 11 slideway shelf 9 along the guide rod 10 movements.
Drilling tool is arranged on bracket by the present embodiment, and the support of stabilization is provided for drilling tool, is led by the way that slideway shelf is arranged at To on bar, make longitudinal depth movement of drilling pipe more steady, will not be deflected when ensure that drill bit cutting, improve the efficiency of cutting.
A kind of drilling machine is also provided in another embodiment, it is provided with according to any described in above-mentioned technical proposal Drilling tool.
Drilling tool in above-mentioned technical proposal is set onto drilling machine, for boring digging annular groove, with conventional tunnel excavator Tool is compared, and the requirement of the drilling machine is relatively low, and simple in structure, can be improved tunnel and be bored the efficiency dug, save equipment cost, decrease Environmental pollution.
The present embodiment provides a kind of drilling method, it is used according to the drilling machine described in above-mentioned technical proposal, including as follows Step:
Treating that drilling area periphery drills through some first annular grooves using the drilling machine, making the first annular groove will It is described to treat that drilling area surrounds;
The unbroken region splitting in the centre of the first annular groove is burst, disintegrating slag is cleared up;
Some second annular grooves are drilled through in the middle part for treating drilling area;
The unbroken region splitting in the centre of the second annular groove is burst, disintegrating slag is cleared up;
By between the first annular groove, between the second annular groove and the first annular groove and described Non- connected region between second annular groove crushes, and makes entirely to treat that drilling area connects, disintegrating slag is cleared up.
Compared with conventional tunnel method for digging, requirement of this method to equipment is relatively low, and device structure is simple, is easy to grasp Make, vibration, impact, noise and dust, environmental pollution very little will not be produced.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that:Its according to Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. a kind of drilling tool, it is characterised in that the drilling tool, which is used to bore, digs annular groove, and the drilling tool includes drilling pipe and at least one set Drill bit, drill bit described in every group include the first drill bit and the second drill bit;
Wherein, first drill bit and second drill bit are symmetrically disposed in institute centered on the center of circle of the drilling pipe end face The end of drilling pipe is stated, and the inner wall of the first drill bit to the drilling pipe deflects and protrudes from the inner wall of the drilling pipe, described The outer wall of two drill bits to the drilling pipe deflects and protrudes from the outer wall of the drilling pipe.
2. drilling tool according to claim 1, it is characterised in that first drill bit and second drill bit include cutter head And tool tip, the cutter head are arranged in the tool tip, the tool tip is fixed on the end of the drilling pipe by fastener.
3. drilling tool according to claim 2, it is characterised in that the fastener is screw.
4. drilling tool according to claim 2, it is characterised in that the cutter head is cylindric, and the cutter head tilts backwards Ground is arranged in the tool tip.
5. drilling tool according to claim 1, it is characterised in that the end of the drilling pipe has been uniformly arranged in the circumferential direction three groups of institutes Drill bit is stated, and first drill bit and second drill bit are arranged in a crossed manner.
6. drilling tool according to claim 1, it is characterised in that the drilling tool further includes driving device, the driving device The rear end of the drilling pipe is arranged on, for driving the drilling pipe to rotate.
7. drilling tool according to claim 6, it is characterised in that the driving device is hydraulic motor.
8. drilling tool according to claim 1, it is characterised in that the drilling tool further includes propulsion device, the propulsion device The lower part of the drilling pipe is arranged on, for promoting the drilling pipe to move forward.
9. a kind of drilling machine, it is characterised in that be provided with according to claim 1-8 any one of them drilling tools.
10. a kind of drilling method, it is characterised in that use drilling machine according to claim 9, include the following steps:
Treating that drilling area periphery drills through some first annular grooves using the drilling machine, make the first annular groove will described in Treat that drilling area surrounds;
The unbroken region splitting in the centre of the first annular groove is burst, disintegrating slag is cleared up;
Some second annular grooves are drilled through in the middle part for treating drilling area;
The unbroken region splitting in the centre of the second annular groove is burst, disintegrating slag is cleared up;
By between the first annular groove, between the second annular groove and the first annular groove and described second Non- connected region between annular groove crushes, and makes entirely to treat that drilling area connects, disintegrating slag is cleared up.
CN201711399854.1A 2017-12-21 2017-12-21 Drilling tool, drilling machine and drilling method Pending CN107916937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711399854.1A CN107916937A (en) 2017-12-21 2017-12-21 Drilling tool, drilling machine and drilling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711399854.1A CN107916937A (en) 2017-12-21 2017-12-21 Drilling tool, drilling machine and drilling method

Publications (1)

Publication Number Publication Date
CN107916937A true CN107916937A (en) 2018-04-17

Family

ID=61893814

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711399854.1A Pending CN107916937A (en) 2017-12-21 2017-12-21 Drilling tool, drilling machine and drilling method

Country Status (1)

Country Link
CN (1) CN107916937A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109209419A (en) * 2018-10-26 2019-01-15 张世远 A kind of solid rock stratum hole brill method
CN109339812A (en) * 2018-10-26 2019-02-15 张世远 A kind of solid rock stratum hole brill method
CN109356605A (en) * 2018-10-26 2019-02-19 张世远 A kind of solid rock stratum hole brill method
CN109356606A (en) * 2018-10-26 2019-02-19 张世远 A kind of solid rock stratum hole brill method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109209419A (en) * 2018-10-26 2019-01-15 张世远 A kind of solid rock stratum hole brill method
CN109339812A (en) * 2018-10-26 2019-02-15 张世远 A kind of solid rock stratum hole brill method
CN109356605A (en) * 2018-10-26 2019-02-19 张世远 A kind of solid rock stratum hole brill method
CN109356606A (en) * 2018-10-26 2019-02-19 张世远 A kind of solid rock stratum hole brill method

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