CN106368614B - A kind of disc drill bit that wheel disc can turn to - Google Patents
A kind of disc drill bit that wheel disc can turn to Download PDFInfo
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- CN106368614B CN106368614B CN201611051294.6A CN201611051294A CN106368614B CN 106368614 B CN106368614 B CN 106368614B CN 201611051294 A CN201611051294 A CN 201611051294A CN 106368614 B CN106368614 B CN 106368614B
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- wheel disc
- steering base
- disc
- drill bit
- turn
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- 230000007246 mechanism Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 33
- 238000005553 drilling Methods 0.000 description 12
- 229910003460 diamond Inorganic materials 0.000 description 11
- 239000010432 diamond Substances 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 4
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- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- E21B10/12—Roller bits with discs cutters
-
- 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
- E21B10/16—Roller bits characterised by tooth form or arrangement
-
- 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
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
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- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
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- 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 invention discloses the disc drill bits that a kind of wheel disc can turn to, including bit body, wheel disc, rack gear is set on wheel disc, wheel disc can be rotated relative to bit body, it is characterized by: bit body, which is equipped at least one, turns to wheel disc, wheel disc is turned to be made of wheel disc and steering base, steering base is mounted on bit body by rotation connection, steering base is rotated relative to drill bit physical efficiency, wheel disc is mounted on steering base by rotation connection, wheel disc can be rotated relative to steering base, the rotation axis of wheel disc is offset with respect to the rotation axis of steering base, and offset distance is greater than 1st/20th of wheel disc gear ring radius, less than three times of wheel disc diameter ring gear, rotation axis close to the steering base of the steering wheel disc of drill bit center portion is not overlapped with drill axis.While the present invention solves the problems, such as that the service life of disc drill bit cutting tooth is too short, the efficiency of breaking rock of drill bit can be improved.
Description
Technical field
The invention belongs to the drilling equipments skills such as petroleum gas, mine engineering, building foundation engineering construction, geology, the hydrology
Art field more particularly to a kind of disc drill bit.
Background technique
Drill bit is in drilling engineering to fractured rock, the rock crushing tool of formation pit shaft.Disc drill bit (also referred to as disk drill
Head, dish-shaped drill bit or dish-style drill bit) be a kind of completely new tooth-shape structure rock bit, the flank of tooth is made and gear wheel (or wheel disc)
The vertical or circular ring shape at certain helical angle of bus continuously or intermittently gear ring.The rock breaking mechanism of disc drill bit is different from conventional tooth
Drill bit is taken turns, when gear ring is rolled along rock to be ground, catalase is forced using big contact stress, forms the broken-rock zone of annular.
Since gear ring is at circular ring shape, it is convenient for the continuous rolling of gear wheel (or wheel disc) on rock, therefore, the disk compared with tricone bit
The service load of formula drill bit is more steady, and load fluctuation amplitude suffered by bearing is also much smaller.The disc type of different size type is bored
The bench test and commercial test results of head all show compared with conventional tricone bit, disc drill bit it is hard, extremely hard, grind
The drilling of mill property stratum and deep-well, slim-hole is more effective.Last century mid-term, in states such as the former Soviet Union, the U.S., France, Britain
There are the research and test of disc drill bit in family, and the result of platform experiment and field experiment at that time all shows good prospect,
But it is difficult to today see use of the disc drill bit in drilling well.Fatigue rupture, the gear ring modeling of disc drill bit cutting tooth (fluted disc)
Become and abrasive wear is its main failure forms.Operating condition of the drill bit when shaft bottom works is extremely complex, and when bit operation shakes
Dynamic (including axial vibration and oscillation crosswise) is inevitable, and the oscillation crosswise of drill bit is to cause wheel disc fatigue rupture, gear ring
One of flow and the principal element of abrasion.Because when oscillation crosswise occurs for drill bit, wheel disc will be along vertical (or close to vertically)
It scrapes and cuts with respect to rock sliding in wheel disc circumferencial direction, i.e., wheel disc is laterally scraped and cuts rock.Wheel disc, which is laterally scraped, to be cut rock and will directly contribute
Wheel disc gear ring lose and flow, and aggravate the abrasion of wheel disc gear ring.The master that disc drill bit does not promote and apply really at the scene
Want reason be exactly cutting tooth service life it is too short, it is difficult to meet the requirement of drilling well.
Summary of the invention
The object of the present invention is to provide the disc drill bits that a kind of wheel disc can turn to, to improve efficiency of breaking rock and the use of drill bit
Service life.
The object of the invention is realized by following technical proposals:
A kind of disc drill bit that wheel disc can turn to, including bit body, wheel disc, rack gear is arranged on wheel disc, and wheel disc can be opposite
Bit body rotation, bit body are equipped at least one and turn to wheel disc, turn to wheel disc and are made of wheel disc and steering base, steering base passes through
Rotation connection is mounted on bit body, and steering base is rotated relative to drill bit physical efficiency, and wheel disc is mounted on steering base by rotation connection,
Wheel disc can be rotated relative to steering base, and the rotation axis of wheel disc is offset with respect to the rotation axis of steering base, and offset distance is greater than wheel
/ 20th of disk gear ring radius, less than three times of wheel disc diameter ring gear, close to the steering base of the steering wheel disc of drill bit center portion
Rotation axis be not overlapped with drill axis.
When drill bit broken rock creeps into work, axis of the bit body rotation with runner disc around drill bit is rotated, wheel disc gear ring and shaft bottom
Rock contact, wheel disc will be rotated around the axis of itself under the effect of rock counter-force, under the compound action of above two movement, wheel
Disk gear ring will roll on bottom rock.The steering base of steering wheel disc on this patent bit body is freely revolved with respect to drill bit physical efficiency
Turn, the wheel disc being mounted on steering base can be rotated relative to steering base, and the rotation axis of wheel disc is inclined with respect to the rotation axis of steering base
It moves.When turning to wheel disc tactite stone and rock interaction broken rock, the wheel disc gear ring of wheel disc and opening when rock contact no matter are turned to
Beginning state is how, when active force of the wheel disc gear ring by rock, due to turn to wheel disc steering base can opposite bit body rotation,
No matter how drill bit moves (rotation, vibration etc.), wheel disc under the effect of external force, by the power of the plane perpendicular to steering base axis
The effect of (component), turning to wheel disc will be pushed the axis around steering base to rotate, and make the rotary shaft for turning to the wheel disc on wheel disc
Always the direction perpendicular to bit body at this with respect to bottom rock movement, i.e. wheel disc are moved along wheel disc with respect to shaft bottom line always
Direction rolls.
This patent is not overlapped close to the rotation axis of the steering base of the steering wheel disc of drill bit center portion with drill axis, can be true
When protecting bit drilling, the wheel disc close to drill bit center portion can smoothly roll in shaft bottom.It is reduced or avoided close to drill bit center portion
Wheel disc transverse direction scraped finish rock.
This patent is compared with the beneficial effect of the prior art:
1, working condition of the drill bit in shaft bottom is extremely complex, and the wellbore that drill bit drills out also tends to be greater than outside diameter, drill bit
Generally be not ideal Concentric rotation drilling when in shaft bottom, broken rock creeps into work, bit while can also generate vibration,
It puts and the compound movements such as revolves, is eccentrically rotated, these complicated movements make the cutting structure of drill bit that can not do ideal around the center of wellbore
Circular motion.Common disc drill bit makes wheel disc gear ring generate lateral sliding (scrape and cut), wheel disc tooth due to above-mentioned compound movement
Circle cannot achieve simple rolling, and this lateral sliding (scrape and cut) will make wheel disc gear ring wear, lose and flow, and aggravate wheel disc tooth
The damage of circle, hence it is evident that reduce the service life of disc drill bit.Rotation axis of the rotation axis of this patent wheel disc with respect to steering base
Offset makes to turn to wheel disc with orientation self-regulation adaptation function.No matter how complicated the movement of drill bit is, also no matter wheel disc just
How are beginning state and orientation, turn to the rotation axis of the wheel disc on wheel disc always perpendicular to the direction of opposite bottom rock movement,
I.e. wheel disc gear ring is rolled along wheel disc with respect to the direction that shaft bottom moves always, wheel disc gear ring is reduced or avoided with respect to rock, side occurs
It is cut to sliding and scraping, reduces the abrasion of wheel disc gear ring, loses and damage with flow etc., the service life of extension wheel disc and drill bit.
2, the compound movements such as movement of the drill bit in shaft bottom is often complicated, and vibration, pendulum are revolved, are eccentrically rotated make common wheel disc
It generates lateral sliding and scrapes and cut and be damaged.But this patent can improve efficiency of breaking rock using these compound movements of drill bit, because
Are as follows: the rotation axis of this patent wheel disc makes steering wheel disc have orientation self-regulation adaptive with respect to the rotational axis offset of steering base
Function is answered, under above-mentioned compound movement, wheel disc can adjust the rolling for changing rotating direction realization to rock in real time, in answering for drill bit
Under miscellaneous movement effect, the wheel disc gear ring of neighbouring (radial position is close) will occur staggeredly to roll, and neighbouring wheel disc gear ring can be real
Now intersect and rolls broken rock.Intersect roll make shaft bottom roll that broken pattern is more complicated, wheel disc gear ring rolling on bottom rock
Broken and damage of rock crackle can intersect and penetrate through, this is conducive to the efficiency of breaking rock for improving drill bit.
3, the rotation axis of this patent wheel disc makes to turn to wheel disc with orientation self-regulated with respect to the rotational axis offset of steering base
Adaptation function is saved, wheel disc gear ring is rolled along wheel disc with respect to the direction that shaft bottom moves always, this can significantly reduce drill bit broken rock
Lateral out-of-balance force and bit operation torque when work, therefore this patent can improve the drilling orientation controllability and tool of drill bit
Face stability enhances the steering capability of drill bit, improves drilling efficiency of the drill bit in directional well drilling.
Alternatively, the wheel disc rotation axis for turning to wheel disc is greater than 5mm with respect to the offset distance of the rotation axis of steering base, small
In the difference of drill bit radius and wheel disc gear ring radius.In the program, smoothly rotated when wheel disc work to enable to turn to correct rolling
Dynamic direction, and good rolling orientation is kept, the rotation axis of wheel disc is not with respect to the offset distance between the rotation axis of steering base
Can be too small, the offset distance the big more is easy to turn to the smooth rotation of wheel disc, drives deflecting roller to spiral and goes to the driving force of normal orientation
Also will be more sufficient, also more it is easy to guarantee to turn to wheel disc and is able to maintain good rolling orientation during drill bit compound movement.But it deviates
Away from can not be too big, too big offset distance, which will make to turn to wheel disc, occupies biggish revolution space, causes the waste in drill bit space.
Alternatively, the wheel disc gear ring tip circle for turning to wheel disc is coplanar with the rotation axis of steering base.In the program, wheel disc
Gear ring tip circle is coplanar with the rotation axis of steering base, and energy is less or avoids that lateral sliding occurs when wheel disc gear ring rolling broken-rock and scrapes
It cuts, reduces the abrasion of wheel disc gear ring, loses and damaged with flow etc..
Alternatively, turning to the gear ring on the wheel disc of wheel disc is 1-6.Turning to the gear ring on the wheel disc of wheel disc can be 1
It is a, or it is multiple, the quantity of wheel disc upper ring gear can be set according to bit size, wheel disc size.It is selected as further,
Gear ring on wheel disc is 1,2 or 3.
When the gear ring on wheel disc is multiple, wheel disc gear ring radius (or diameter) refers to the gear ring top of maximum gear ring on wheel disc
Round radius (or diameter).
It alternatively, is rotation connection between axis and wheel disc by axis connection between wheel disc and steering base.Alternatively,
To be fixedly connected or axis is an integral structure with wheel disc between axis and wheel disc, it is rotatablely connected between axis and steering base.As choosing
It selects, is rotation connection between axis and wheel disc, be rotation connection between axis and steering base.
Alternatively, restricted deflecting roller disk is set between steering base and bit body on steering base rotation axis direction
The locking mechanism of movement.It turns to wheel disc to be arranged on bit body by steering base, is formed and be rotatablely connected with bit body, for anti-rotation stop
It falls off to wheel disc along the direction play of steering base rotation axis or along axis, it can be between the steering base and bit body for turning to wheel disc
Locking mechanism is set, and enhancing turns to the reliability and safety of wheel disc.Here locking refers to that will turn to wheel disc revolves along steering base
The direction of shaft axis limits, and prevents from turning to wheel disc along the direction play of steering base rotation axis or fall off, is not intended to limit deflecting roller
Rotation of the disk relative to bit body.
As further selection, locked between steering base and bit body using ball.Ball locking can reduce shadow to the greatest extent
Ring deflecting roller disc spins movement while, be able to achieve will turn to wheel disc along steering base rotation axis direction limit and axial locking,
And it is easy to process.
Alternatively, sealing structure is provided between steering base and bit body.Drilling fluid, landwaste etc. are in when bit operation
In environment, turning to wheel disc can rotate relative to bit body, to prevent other substances from entering the steering base and bit body of steering wheel disc
Sealing structure can be set between revolute between steering base and bit body and extend revolute to reduce the abrasion of revolute
Service life.
Alternatively, the gear ring surface on wheel disc is covered with wearing layer.Wearing layer can increase the surface hardness of gear ring and wear-resisting
Property, wearing layer can be reinforced for antifriction alloy, hard alloy abrasion-resistant layer, diamond etc..
Alternatively, the gear ring on wheel disc is the gear ring that inlaid solid or solid welding cutting tooth is formed.Inlaid solid or solid welding cutting
Tooth can be hard-metal insert, polycrystal diamond composite teeth, impregnated diamond tooth (block), cubic boron, ceramic tooth or plycrystalline diamond
The composite teeth etc. that diamond and impregnated diamond phase are combined.What the cutting tooth high using above-mentioned hardness, wearability is strong was formed
The hardness and wearability of wheel disc gear ring can be improved in gear ring, extends wheel disc and drilling life of bit.The tooth that inlaid solid cutting tooth is formed
Circle, can stay a small amount of gap, to ensure that the inlaid solid intensity of cutting tooth, cutting tooth form more continuous circle between cutting tooth and cutting tooth
Disk gear ring.
The foregoing main solution of the present invention and further alternatives thereof can be freely combined to form multiple schemes, be this
Invention can be used and claimed scheme；And it is of the invention, between (each non conflicting selection) selection and between other selections
It can also be freely combined.Those skilled in the art, which can be illustrated after understanding the present invention program according to the prior art and common knowledge, to be had
Multiple combinations are the claimed technical solution of the present invention, do not do exhaustion herein.
Detailed description of the invention
Fig. 1, Fig. 2 are the structural schematic diagram of the embodiment of the present invention 1.
Fig. 3, Fig. 4 are the steering wheeling disk structure schematic diagram of the embodiment of the present invention 1.
Fig. 5 is that the steering base of the steering wheel disc of the embodiment of the present invention 1 is the structural schematic diagram that stepped axle journal shape is arranged.
Fig. 6 is that the steering base of the steering wheel disc of the embodiment of the present invention 1 is cylindrical structural schematic diagram.
Fig. 7 is the structural schematic diagram that the gear ring on the wheel disc of the embodiment of the present invention 2 is 2.
Fig. 8 is the embodiment of the present invention 4, is provided with locking mechanism between the steering base and bit body of embodiment 5 and sealing knot
The structural schematic diagram of structure.
In figure: 1, bit body, 21, wheel disc, 211, wheel disc gear ring, 22, steering base, 23, the rotation axis of wheel disc, 24, turn
To the rotation axis of seat, 3, sealing structure, 4, locking mechanism.
Specific embodiment
Following non-limiting examples are for illustrating the present invention.
Embodiment 1:
With reference to shown in Fig. 1-6, a kind of disc drill bit that wheel disc can turn to, including bit body 1, wheel disc 21 is set on wheel disc 21
Be equipped with gear ring 211, wheel disc 21 can opposite bit body 1 rotate, bit body 1 is equipped at least one and turns to wheel disc, steering wheel disc by
Wheel disc 21 and steering base 22 form, and steering base 22 is mounted on bit body 1 by rotation connection, and steering base 22 is with respect to bit body 1
It can rotate, wheel disc 21 is mounted on steering base 22 by rotation connection, and wheel disc 21 can be rotated relative to steering base 22.Alternatively,
As shown in this embodiment, the hole for accommodating the steering base 22 that matching turns to wheel disc is correspondingly provided on bit body 1, steering base 22 enters in hole
It is rotated on bit body 1.Steering base 22 can be there are many form, such as Fig. 3,5 be to turn to the steering base 22 of wheel disc to be provided with
The axle journal shape of ladder, Fig. 6,7 are that turn to the steering base 22 of wheel disc be cylindrical.The rotation axis 23 of wheel disc 21 is with respect to steering base 22
Rotation axis 24 offset (see the offset distance S of Fig. 3, Fig. 4), and offset distance S be greater than 211 radius of wheel disc gear ring 20/
One, less than three times of 211 diameter of wheel disc gear ring；Close to the rotation axis 24 and brill of the steering base 22 of the steering wheel disc of drill bit center portion
Head axis is not overlapped.Alternatively, the rotation axis 23 of wheel disc 21 is greater than with respect to the offset distance S of the rotation axis 24 of steering base 22
5mm is less than the difference of 211 radius of drill bit radius and wheel disc gear ring.Alternatively, 211 surface of gear ring on wheel disc 21 is covered with wear-resisting
Layer, wearing layer can be antifriction alloy, hard alloy abrasion-resistant layer, diamond reinforcement etc..Alternatively, the gear ring on wheel disc 21
The 211 disk shaped ring gears formed for inlaid solid or solid welding cutting tooth.Inlaid solid or solid welding cutting tooth can be hard-metal insert, gather
Diamond composite teeth, impregnated diamond tooth (block), cubic boron, ceramic tooth or polycrystalline diamond and impregnated diamond phase
The composite teeth etc. being combined.Alternatively, turning to the gear ring 211 on the wheel disc 21 of wheel disc is 1-6.Turn to the wheel disc of wheel disc
Gear ring 211 on 21 can be 1 (such as Fig. 1,2,4,5,6), or it is multiple, if the gear ring on Fig. 7 wheel disc 21 is 2.
When gear ring 211 on wheel disc 21 is 1, the preferably tip circle of the gear ring 211 of wheel disc 21 and the rotation axis 24 of steering base 22 is coplanar.
When gear ring 211 is multiple, preferably 211 relative rotation axis 24 or so of gear ring is uniformly distributed.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, and difference is: pass through axis connection between wheel disc 21 and steering base 22,
It is rotation connection between axis and wheel disc 21.Or, to be fixedly connected or axis is an integral structure with wheel disc, axis between axis and wheel disc 21
It is rotation connection between steering base 22.Or, being rotation connection between axis and wheel disc 21, connect between axis and steering base 22 for rotation
It connects.
Embodiment 3:
The present embodiment is substantially the same manner as Example 1, and difference is: being arranged between steering base 22 and bit body 1 restricted
Turn to the locking mechanism 4 of movement of the wheel disc on 22 rotation axis of steering base, 24 direction.It can be set between steering base 22 and bit body 1
Elastic collar structure is set, is fallen off to prevent rotation stop to wheel disc along the direction play of the rotation axis 24 of steering base 22 or along axis；Turn
To helicitic texture settable between seat 22 and bit body 1, steering base 22 is limited in the steering bore of bit body 1 by nut
It prevents from turning to wheel disc along the direction play of rotation axis 24 or fall off.As further selection, between steering base 22 and bit body 1
(such as Fig. 8) is locked using ball.
Embodiment 4:
The present embodiment is substantially the same manner as Example 1, and difference is: sealing is provided between steering base 22 and bit body 1
Structure 3(such as Fig. 8).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. the disc drill bit that a kind of wheel disc can turn to, including bit body, wheel disc, rack gear is set, wheel disc opposite can bore on wheel disc
Head body rotation, it is characterised in that: bit body is equipped at least one and turns to wheel disc, turns to wheel disc and is made of wheel disc and steering base,
Steering base is mounted on bit body by rotation connection, and steering base is rotated relative to drill bit physical efficiency, and wheel disc passes through rotation connection installation
On steering base, wheel disc can be rotated relative to steering base, and the rotation axis of wheel disc is offset with respect to the rotation axis of steering base, and partially
It moves away from being greater than 1st/20th of wheel disc gear ring radius, less than three times of wheel disc diameter ring gear, close to the deflecting roller of drill bit center portion
The rotation axis of the steering base of disk is not overlapped with drill axis, and restricted deflecting roller disk is arranged between steering base and bit body and is turning
The locking mechanism of movement on seat rotating axis line direction, turning to the gear ring on the wheel disc of wheel disc is 1-6.
2. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: turn to the wheel disc rotary shaft of wheel disc
Line is greater than 5mm with respect to the offset distance of the rotation axis of steering base, is less than the difference of drill bit radius and wheel disc gear ring radius.
3. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: turn to the wheel disc gear ring top of wheel disc
Circle is coplanar with the rotation axis of steering base.
4. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: pass through between wheel disc and steering base
Axis connection is rotation connection between axis and wheel disc；Or to be fixedly connected or axis is an integral structure with wheel disc between axis and wheel disc,
It is rotation connection between axis and steering base.
5. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: adopted between steering base and bit body
It is locked with ball.
6. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: set between steering base and bit body
It is equipped with sealing structure.
7. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: the gear ring surface on wheel disc is covered with
Wearing layer.
8. the disc drill bit that wheel disc according to claim 1 can turn to, it is characterised in that: gear ring on wheel disc be it is inlaid solid or
The gear ring that the cutting tooth of solid welding is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051294.6A CN106368614B (en) | 2016-11-25 | 2016-11-25 | A kind of disc drill bit that wheel disc can turn to |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051294.6A CN106368614B (en) | 2016-11-25 | 2016-11-25 | A kind of disc drill bit that wheel disc can turn to |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106368614A CN106368614A (en) | 2017-02-01 |
| CN106368614B true CN106368614B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611051294.6A Active CN106368614B (en) | 2016-11-25 | 2016-11-25 | A kind of disc drill bit that wheel disc can turn to |
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| Country | Link |
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| CN (1) | CN106368614B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798514B (en) * | 2017-04-27 | 2024-01-05 | 西南石油大学 | Directional drilling diamond drill bit |
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| CN106014266A (en) * | 2016-08-02 | 2016-10-12 | 西南石油大学 | Disc cutter type multiple drill bit suitable for hard-to-drill stratum |
| CN206190215U (en) * | 2016-11-25 | 2017-05-24 | 西南石油大学 | Disk drill bit that rim plate can turn to |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2761167A1 (en) * | 2009-05-06 | 2010-11-11 | Michael James Harvey | Slide reamer and stabilizer tool |
| CN201751525U (en) * | 2010-07-16 | 2011-02-23 | 西南石油大学 | Combined type drill bit for breaking rock by cutting manner |
| CN203188936U (en) * | 2013-04-02 | 2013-09-11 | 成都恩承油气有限公司 | Bidirectional drilling tool stabilizer |
| CN103541660A (en) * | 2013-11-07 | 2014-01-29 | 西南石油大学 | Composite type eccentric one-cone bit |
| CN106014266A (en) * | 2016-08-02 | 2016-10-12 | 西南石油大学 | Disc cutter type multiple drill bit suitable for hard-to-drill stratum |
| CN206190215U (en) * | 2016-11-25 | 2017-05-24 | 西南石油大学 | Disk drill bit that rim plate can turn to |
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