CN108222841A - A kind of compound rock drill and rock drilling method - Google Patents
A kind of compound rock drill and rock drilling method Download PDFInfo
- Publication number
- CN108222841A CN108222841A CN201810217498.5A CN201810217498A CN108222841A CN 108222841 A CN108222841 A CN 108222841A CN 201810217498 A CN201810217498 A CN 201810217498A CN 108222841 A CN108222841 A CN 108222841A
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- China
- Prior art keywords
- rock
- drilling
- bit
- drilling rod
- drill
- Prior art date
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- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 107
- 239000011435 rock Substances 0.000 title claims abstract description 90
- 150000001875 compounds Chemical class 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 12
- 231100000241 scar Toxicity 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 description 8
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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
- E21B10/00—Drill bits
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- 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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of compound rock drill and rock drilling method, wherein compound rock drill, including drilling rod, down-the-hole air hammer and rock bit, drilling rod one end is drill bit, down-the-hole air hammer is sheathed on drill bit along the central axis of drilling rod, around drilling rod central axis on drill bit circumferentially arranged multiple rock bit, down-the-hole air hammer is equipped with impactor drill bit, and the extension elongation of working face along the work direction of advance of drilling rod of impactor drill bit is more than extension elongation of the working face of rock bit along the work direction of advance of drilling rod；Wherein rock drilling method carries out rock drilling using above-mentioned compound rock drill, allows impactor bit contact scar first and Drilling goes out the centre bore of small-bore, then rock bit starts the scar contacted around centre bore and carries out Drilling.Compound rock drill provided by the invention and rock drilling method can realize major diameter depth rock drilling, so as to improve the efficiency of drilling rock drilling equipment, reduce exploitation energy consumption.
Description
Technical field
The present invention relates to impact drilling apparatus fields, and in particular to a kind of compound rock drill and rock drilling method.
Background technology
Development of the mining industry in China is very rapid, and the mining industry output value and the input of winning equipment were all with 40% speed in recent years
Degree increases, wherein the scale of investment of outdoor ferrous metal ore and nonferrous metals ore is more than 100,000,000,000 yuan.Mining is main
Including three strip mining transformation, underground mining and marine mining parts, wherein strip mining transformation yield accounts for the 60% of mining total amount
More than.
Generally ore is crushed using bore blowing-up method in large surface mine exploitation.Present mine drilling rock drilling
Equipment mainly includes top hammer formula hydraulic rock drilling machine, down-the-hole drill and rotary drill.And the parameter of blasthole determines the work of drilling machine
Industry efficiency and energy consumption, same blast area, if blasthole diameter increases, blasthole spacing can increase, and can reduce brill in this way
Machine due to frequently shift and caused by energy loss；Same blasthole diameter and blasthole spacing, increase blast hole depth, then drilling machine one
The burst size of secondary drilling increases sharply, and equally reduces the energy consumption of drilling machine, improves drilling efficiency.Increase aperture and hole depth, it is right
Drilling rock drilling equipment proposes new challenge.
Therefore, it is necessary to one kind can realize major diameter depth rock drilling, so as to improve the efficiency of drilling rock drilling equipment, reduce it
Compound rock drill and the rock drilling method of energy consumption are exploited to push the development of large-scale mine drilling rock drilling key technology.
Invention content
Present invention aims at a kind of compound rock drill of offer and rock drilling method, specific technical solution are as follows：
The compound rock drill include drilling rod, down-the-hole air hammer and rock bit, described drilling rod one end be drill bit, institute
The central axis for stating down-the-hole air hammer along the drilling rod is sheathed on the drill bit, and the central axis around the drilling rod is described
Circumferentially arranged multiple rock bit on drill bit, the down-the-hole air hammer are equipped with impactor drill bit, the impactor
The working face of drill bit and the working face of the rock bit are towards the work direction of advance of the drilling rod, and the impactor bores
The working face of head along the work direction of advance of the drilling rod extension elongation more than the rock bit working face along the brill
The extension elongation of the work direction of advance of bar.
Preferably, the working face of the rock bit is tilted towards the drilling rod central axis, and the axis of the rock bit
The angle of line and the central axis of the drilling rod is 30 ° to 45 °.
Preferably, the drilling rod includes the transition drilling rod being fixedly connected along the series connection of drilling rod central axis and drill bit frame, described
Drill bit frame is arranged on the drill bit, and multiple rock bit are provided in the drill bit frame.
Preferably, the first stop collar and the second stop collar are equipped with along central axis inside the drilling rod for being arranged described dive
Hole impactor, one end that first stop collar is equipped with the impactor drill bit far from the down-the-hole air hammer are set, and described the
One end that two stop collars are equipped with the impactor drill bit close to the down-the-hole air hammer is set.
Preferably, described down-the-hole air hammer one end is equipped with impactor drill bit, and the down-the-hole air hammer other end is equipped with connection
Head drives the down-the-hole air hammer rotation for external drilling tool.
The method for carrying out rock drilling operation using above-mentioned compound rock drill, specifically comprises the following steps：
Step 1: the impactor bit contact scar and Drilling that the down-the-hole air hammer is equipped with go out in small-bore
Heart hole；
Step 2: promoting the compound rock drill, the rock bit starts to contact scar and carries out Drilling, around institute
It states centre bore and forms bigbore drilling.
Preferably, external impetus mechanism with the compound rock drill is connect and pushes operating point to, revolve the drilling rod
Turn and drive the rock bit and the down-the-hole air hammer rotation
It applies the technical scheme of the present invention, at least has the advantages that：
(1) present invention is equipped with rock bit and down-the-hole air hammer, and down-the-hole air hammer and rock bit simultaneously on drilling rod
It one in front and one in back sets, the impactor drill bit on down-the-hole air hammer is forward, and rearward, in drilling operation, impactor bores rock bit
Head first contact work rock stratum and Drilling go out small-bore centre bore, by Drilling centre bore be drilled rock interior formed from
By face, be conducive to the further reaming Drilling of rock bit, efficiency of breaking rock improved, simultaneously because the impact drilling of impactor, center
Hole surrounding rock is damaged in advance, is reduced torque during follow-up rock bit Drilling rock, is substantially increased drilling efficiency, subtracts
Lack drill tool wear, significantly reduce exploitation energy consumption
(2) angle of the central axis of the axis and drilling rod of rock bit is 30 ° to 45 ° in the present invention, utmostly real
The work(of existing gear wheel Drilling reaming；The drilling rod in the present invention is divided into transition drilling rod and drill bit frame simultaneously, is molded convenient for the production of product
And assembling.
(3) present invention is set in by the way that stop collar is set to stablize down-the-hole air hammer inside drilling rod, simple and reliable for structure；Simultaneously
Down-the-hole air hammer one end in the present invention is equipped with connector in order to which external connection power mechanism drives drilling tool rotation.
Description of the drawings
The attached drawing for forming the part of the application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structure diagram of the compound rock drill of the embodiment of the present invention 1；
Wherein, 1, rock bit, 2, drilling rod, 2.1, transition drilling rod, 2.2, drill bit frame, 3, down-the-hole air hammer, 3.1, connection
Head, 3.2, impactor drill bit, the 4, first stop collar, the 5, second stop collar, 6, centre bore.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Embodiment 1：
A kind of compound rock drill, referring to Fig. 1, including drilling rod 2, down-the-hole air hammer 3 and rock bit 1, the drilling rod 2 one
It holds as drill bit, the down-the-hole air hammer 3 is sheathed on the drill bit along the central axis of the drilling rod 2, around the drilling rod 2
Central axis on the drill bit circumferentially arranged multiple rock bit 1, the down-the-hole air hammer 3 be equipped with impact
Device drill bit 3.2, the working face of the impactor drill bit 3.2 and the working face of the rock bit 1 are towards the work of the drilling rod 2
Make direction of advance, and the working face of the impactor drill bit 3.2 is more than along the extension elongation of the work direction of advance of the drilling rod 2
Extension elongation of the working face of the rock bit 1 along the work direction of advance of the drilling rod 2.
The working face of the rock bit 1 is tilted towards 2 central axis of drilling rod, and the axis of the rock bit 1 with
The angle of the central axis of the drilling rod 2 is 30 ° to 45 °.
The drilling rod 2 includes the transition drilling rod 2.1 being fixedly connected along the series connection of 2 central axis of drilling rod and drill bit frame 2.2, described
Drill bit frame 2.2 is arranged on the drill bit, and multiple rock bit 1 are arranged in the drill bit frame 2.2.
The first stop collar 4 and the second stop collar 5 are equipped with inside the drilling rod 2 along central axis to rush for being arranged the down-the-hole
Device 3 is hit, one end that first stop collar 4 is equipped with the impactor drill bit 3.2 far from the down-the-hole air hammer 3 is set, described
One end that second stop collar 5 is equipped with the impactor drill bit 3.2 close to the down-the-hole air hammer 3 is set.
Described 3 one end of down-the-hole air hammer is equipped with impactor drill bit 3.2, and 3 other end of down-the-hole air hammer is equipped with connector
3.1 drive the down-the-hole air hammer 3 to rotate for external drilling tool.
During above-mentioned compound rock drill work, external impetus mechanism is connect and pushed to the compound rock drill first
Operating point rotates the drilling rod 2 and the rock bit 1 and the down-the-hole air hammer 3 is driven to rotate；Then it pushes described multiple
Close rock drill forward, the impactor drill bit 3.2 that the down-the-hole air hammer 3 is equipped with contacts scar first and Drilling go out it is small
The centre bore 6 in aperture；Finally continue to promote the compound rock drill, the rock bit 1 starts to contact scar and be bored
Chisel, bigbore drilling is formed around the centre bore 6.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of compound rock drill, which is characterized in that described including drilling rod (2), down-the-hole air hammer (3) and rock bit (1)
Drilling rod (2) one end is drill bit, and the down-the-hole air hammer (3) is sheathed on the drill bit along the central axis of the drilling rod (2),
Around the drilling rod (2) central axis on the drill bit circumferentially arranged multiple rock bit (1), the down-the-hole
Impactor (3) is equipped with impactor drill bit (3.2), the working face of the impactor drill bit (3.2) and the rock bit (1)
Working face is towards the work direction of advance of the drilling rod (2), and the working face of the impactor drill bit (3.2) is along the drilling rod
(2) working face that the extension elongation of work direction of advance is more than the rock bit (1) advances along the work of the drilling rod (2)
The extension elongation in direction.
2. compound rock drill according to claim 1, which is characterized in that the working face of the rock bit (1) is towards institute
The inclination of drilling rod (2) central axis is stated, and the axis of the rock bit (1) and the angle of the central axis of the drilling rod (2) are
30 ° to 45 °.
3. compound rock drill according to claim 1, which is characterized in that the drilling rod (2) is including along drilling rod (2) center
The transition drilling rod (2.1) and drill bit frame (2.2), the drill bit frame (2.2) that axis series connection is fixedly connected are arranged on the drill bit,
Multiple rock bit (1) are provided on the drill bit frame (2.2).
4. compound rock drill according to claim 1, which is characterized in that set inside the drilling rod (2) along central axis
There are the first stop collar (4) and the second stop collar (5) for being arranged the down-the-hole air hammer (3), first stop collar (4) is separate
One end setting of the down-the-hole air hammer (3) equipped with the impactor drill bit (3.2), second stop collar (5) is close to described
One end setting of the down-the-hole air hammer (3) equipped with the impactor drill bit (3.2).
5. compound rock drill according to claim 1, which is characterized in that described down-the-hole air hammer (3) one end is equipped with punching
Device drill bit (3.2) is hit, down-the-hole air hammer (3) other end is equipped with connector (3.1) and drives the down-the-hole for external drilling tool
Impactor (3) rotates.
A kind of 6. rock drilling method, which is characterized in that use such as compound rock drill described in any one of claim 1 to 5, specifically
Include the following steps：
Step 1: the impactor drill bit (3.2) contact scar and Drilling that the down-the-hole air hammer (3) is equipped with go out small-bore
Centre bore (6)；
Step 2: promoting the compound rock drill, the rock bit (1) starts to contact scar and carries out Drilling, around institute
It states centre bore (6) and forms bigbore drilling.
7. rock drilling method according to claim 6, which is characterized in that by external impetus mechanism and the compound rock drill
It connects and pushes operating point to, rotate the drilling rod (2) and the rock bit (1) and the down-the-hole air hammer (3) is driven to revolve
Turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217498.5A CN108222841A (en) | 2018-03-16 | 2018-03-16 | A kind of compound rock drill and rock drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217498.5A CN108222841A (en) | 2018-03-16 | 2018-03-16 | A kind of compound rock drill and rock drilling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108222841A true CN108222841A (en) | 2018-06-29 |
Family
ID=62659531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810217498.5A Pending CN108222841A (en) | 2018-03-16 | 2018-03-16 | A kind of compound rock drill and rock drilling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718465A (en) * | 2022-04-18 | 2022-07-08 | 中南大学 | Dynamic pulling-shearing tunneling drill bit and composite rock breaking method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392605A (en) * | 2011-11-30 | 2012-03-28 | 四川深远石油钻井工具有限公司 | Compound bit formed by PDC (polycrystalline diamond compact) bits and rotary cutting bit |
| CN102434105A (en) * | 2011-11-30 | 2012-05-02 | 四川深远石油钻井工具有限公司 | Composite bit with rotary cut rock-breaking function |
| CN202866644U (en) * | 2012-11-09 | 2013-04-10 | 杨振侠 | Way-type drilling unit of roller cone and DTH hammer |
| CN203701969U (en) * | 2014-01-26 | 2014-07-09 | 山东远征石油设备股份有限公司 | Compound type abrasion-resistant drill bit |
| CN208267762U (en) * | 2018-03-16 | 2018-12-21 | 中南大学 | A kind of compound rock drill |
-
2018
- 2018-03-16 CN CN201810217498.5A patent/CN108222841A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392605A (en) * | 2011-11-30 | 2012-03-28 | 四川深远石油钻井工具有限公司 | Compound bit formed by PDC (polycrystalline diamond compact) bits and rotary cutting bit |
| CN102434105A (en) * | 2011-11-30 | 2012-05-02 | 四川深远石油钻井工具有限公司 | Composite bit with rotary cut rock-breaking function |
| CN202866644U (en) * | 2012-11-09 | 2013-04-10 | 杨振侠 | Way-type drilling unit of roller cone and DTH hammer |
| CN203701969U (en) * | 2014-01-26 | 2014-07-09 | 山东远征石油设备股份有限公司 | Compound type abrasion-resistant drill bit |
| CN208267762U (en) * | 2018-03-16 | 2018-12-21 | 中南大学 | A kind of compound rock drill |
Non-Patent Citations (1)
| Title |
|---|
| 熊青山等: "《石油工程专业实验指导书第2版》", 31 October 2012, 第144-153页 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718465A (en) * | 2022-04-18 | 2022-07-08 | 中南大学 | Dynamic pulling-shearing tunneling drill bit and composite rock breaking method |
| CN114718465B (en) * | 2022-04-18 | 2023-05-26 | 中南大学 | Dynamic pull-shear tunneling drill bit and composite rock breaking method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
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| RJ01 | Rejection of invention patent application after publication |